KR20200010192A - Construction monitoring device, construction monitoring program, construction monitoring method, construction monitoring system and construction training system - Google Patents

Abstract

In addition to facilitating the confirmation of the construction state of the sealing material, the construction reliability and construction ability are enhanced. As a construction monitoring apparatus 2 of a sealing material which fits the sealing material (gasket 8) to the flange joint 6, and fastens and seals with the some bolt 12-1, 12-2 ... 12-8 Generating a plurality of coordinates extending radially from a center point, and displaying, on each coordinate, the target axial force of the bolt, or the detected axial force of the bolt, as a distance from the center point, between the target axial forces on the adjacent coordinates, or Connection information between the detection axial forces to generate a first distribution figure 26-1 by the target axial force or a second distribution figure 26-2 by the detection axial force on the coordinates; And an information generation unit 22.

Description

Construction monitoring device, construction monitoring program, construction monitoring method, construction monitoring system and construction training system

TECHNICAL FIELD This invention relates to the technique of construction and monitoring of construction of sealing materials, such as a gasket used for the flange joint of piping connection.

In the construction which connects piping and facilities, such as a pump, to piping, a sealing material, such as a gasket, is sandwiched in a flange joint, and the gasket is fastened with the bolt arrange | positioned at the several point of a flange joint.

Regarding this construction, it is known to measure the fastening force or fastening state of the flange fastening part through a gasket, and to monitor the leak of the fluid from a fastening part (for example, patent document 1). It is known to measure this pressure with a pressure sensor with respect to the pressure on the gasket side interposed in this flange fastening part, and to determine a flange fastening force based on the measured value (for example, patent document 2).

As an educational base material for this construction, it is known to detect a clamping force of a bolt fastened by a fastener such as a torque wrench by a load cell, display it on a display, and confirm the surface pressure of the flange to an operator (for example, a patent). Document 3).

Furthermore, the flange fastening training system which visualizes the deformation | transformation data of a bolt for the practice by tightening a flange joint bolt is also known (for example, patent document 4).

Japanese Patent Laid-Open No. 9-329281 Japanese Unexamined Patent Publication No. 2007-292628 Japanese Unexamined Patent Publication No. 2009-191932 Japanese Unexamined Patent Publication No. 2015-141345

By the way, there are various products in which a sealing material differs, and there exists freedom of selection. Even if the excellent sealing material suitable for a condition is selected, when the construction state is incomplete, the function which a sealing material has may not be exhibited, and there exists a subject that the fall of a sealing function may generate leakage. Increasing the axial force of the bolt for fastening the sealing material increases the fastening force. However, if the fastening force exceeds the limit of the allowable force of the sealing material, there is a risk of crushing the sealing material. If the fastening force is insufficient, the required sealing performance is not obtained. If the axial forces of the plurality of bolts are nonuniform, there is a problem that deformation occurs in the sealing material and the expected sealing performance is not obtained. For this reason, in order to ensure the safety and reliability of the detachable piping connection part, the construction of a sealing material is very important and careful construction is required.

The construction of such seal materials is preferably performed by a worker who has been wet, and training and experience are required for the training. However, it is also important for the learner to confirm the skill and to promote the skill up in securing the reliability of construction.

Accordingly, an object of the present invention is to increase the reliability and construction ability of the construction while facilitating the confirmation of the construction state of the sealing material in view of the above problems.

Further, another object of the present invention is not only the uniformity of bolt axial force for fastening the seal member, but also the inventor's knowledge that the seal performance is affected not only by the parallelism between the flanges, the fastening force for each seal member, and the fastening procedure of the bolt. Based on the above, the parallelism between the flanges, the clamping force for each seal member, and the tightening procedure are monitored, thereby contributing to the improvement of the construction function and increasing the reliability of the seal construction.

In order to achieve the above object, according to one aspect of the construction monitoring device of the sealing material of the present invention, a sealing construction monitoring device, which seals the sealing material to the flange joint and tightened with a plurality of bolts, extending radially from the center point Generate a plurality of coordinates, display a target axial force of the bolt, or a detected axial force of the bolt, as a distance from the center point on each coordinate, and connect the target axial force on the adjacent coordinates or between the detected axial forces And figure information generating means for generating a first distribution figure by the target axial force or a second distribution figure by the detection axial force on the coordinates.

In the construction monitoring apparatus of the sealing material, the figure information generating means superimposes the first distributed figure and the second distributed figure on common coordinates.

In order to achieve the above object, according to one aspect of the construction monitoring device of the sealing material of the present invention, as a construction monitoring device of the sealing material, the sealing material is fitted to the flange joint and tightened with a plurality of bolts, the axial force of each bolt A plurality of first sensors to detect, an information generator for generating distribution information of the target axial force based on target axial force and position information for the axial force, and generating distribution information of the axial force based on the axial force and position information; And a monitor presenting a first distribution figure representing the target axial force on a coordinate and presenting a second distribution figure representing the axial force.

In the construction monitoring apparatus of the said sealing material, Furthermore, it is equipped with the 2nd sensor which detects the parallelism between the flanges of the said flange joint, The said information generation part produces parallelism information by the sensor output of the said 2nd sensor, The monitor presents a third distribution plot showing the parallelism between the flanges.

In the construction monitoring apparatus for the seal member, the information generating unit further includes a target clamping force set for each seal member, with reference to the tightening torque calculated by the flange information of the flange joint and the dimensional information of the bolt. It is determined for each bolt whether the tightening force with respect to the target tightening force is reached, and the determination result is presented to the monitor.

In the construction monitoring apparatus for the seal member, the working environment can be simulated by further changing the position or angle of the seal construction portion provided with the flange seam or by changing the position or angle of the flange seam.

In order to achieve the above object, according to one aspect of the construction monitoring program of the sealing material of the present invention, as a construction monitoring program of the sealing material to be executed by a computer, generating a plurality of coordinates extending radially from the center point, on each coordinate The target axial force of the bolt or the detected axial force of the bolt is expressed as a distance from the center point, and the target axial force on the coordinates is connected between the target axial forces on the adjacent coordinates or between the detected axial forces. The computer realizes a function of generating one distributed figure or a second distributed figure based on the detected axial force.

In the construction monitoring program of the sealing material, the computer further realizes a function of superimposing and displaying the first distributed figure and the second distributed figure on common coordinates.

In order to achieve the above object, according to an aspect of the construction monitoring program of the sealing material of the present invention, as a construction monitoring program of the sealing material to be executed by a computer, receiving a sensor output from a plurality of first sensors for detecting the axial force of each bolt A first distribution figure indicating distribution information of the target axial force based on target axial force and position information on the axial force, generating distribution information of the axial force based on the axial force and position information, and indicating the target axial force on a coordinate; The function of presenting a second distribution figure representing the axial force is realized by the computer.

In the construction monitoring program for the sealant, further, the sensor output is received from a second sensor that detects the parallelism between the flanges of the flange seams, the parallelism information is generated by the sensor output, and the parallelism between the flanges is indicated. The function of presenting the third distributed figure is realized by the computer.

In the construction monitoring program of the seal member, further, a function of setting a target clamping force for each seal member, determining for each bolt whether the clamping force for the seal member has reached the target clamping force, and presenting the determination result on a monitor It is realized by the computer.

In the construction monitoring program of the sealing material, the computer further implements a function of determining the tightening procedure of each bolt and presenting the determination result to the monitor.

In order to achieve the above object, according to one aspect of the construction monitoring method of the sealing material of the present invention, as a construction monitoring method of the sealing material, the sealing material is fitted to the flange seam and tightened with a plurality of bolts,

The figure information generating means generates a plurality of coordinates extending radially from the center point, and displays the target axial force of the bolt or the detected axial force of the bolt as a distance from the center point on each coordinate, Connecting between target axis forces or between the detection axis forces, thereby generating a first distribution figure by the target axis force or a second distribution figure by the detection axis force on the coordinates.

In order to achieve the above object, according to one aspect of the construction monitoring method of the sealing material of the present invention, as a construction monitoring method of the sealing material, the sealing material is fitted to the flange joint and tightened with a plurality of bolts, the axial force of each bolt A step of detecting, generating distribution information of the target axial force by target axial force and position information on the axial force, and generating distribution information of the axial force by the axial force and position information, and the target axial force on coordinates And a step of presenting a first distributed figure representing the second distributed figure representing the axial force.

In the construction monitoring method of the said sealing material, Furthermore, the process of detecting the parallelism between the flanges of the said flange joint, the process of generating parallelism information by the said parallelism, and the 3rd distribution figure which shows the said parallelism between the said flanges It includes the process of presenting.

In order to achieve the above object, according to one aspect of the construction monitoring system of the sealing material of the present invention, as a construction monitoring system of the sealing material, the sealing material is inserted into the flange joint and tightened with a plurality of bolts, the sealing material on the flange joint A seal construction having a first sensor for detecting the axial force of the plurality of bolts to which the bolt is fitted or a second sensor for detecting the parallelism between the flanges of the flange seam, and a plurality of coordinates extending radially from the center point. And display the target axial force of the bolt, or the detected axial force of the bolt, on each coordinate as a distance from the center point, and connect the target axial force on the adjacent coordinates or between the detected axial forces on the coordinates. Generate a first distribution figure by the target axial force or a second distribution figure by the detection axial force It includes a shape information generating means.

In order to achieve the above object, according to one aspect of the construction monitoring system of the sealing material of the present invention, as a construction monitoring system of the sealing material, the sealing material is inserted into the flange joint and tightened with a plurality of bolts, the sealing material on the flange joint A seal construction portion having a first sensor for detecting the axial force of a plurality of bolts to which the bolt is inserted, or a second sensor for detecting the parallelism between flanges of the flange joint, and a wired portion with the first sensor or the second sensor. Or wirelessly connected, generating distribution information of the target axial force by target axial force and position information on the axial force, generating distribution information of the axial force by the axial force and position information, or parallelism information by the parallelism An information generation unit for generating a connection and a wired or wireless connection with the information generation unit, And a monitor presenting a first distributed figure representing a table axis force, presenting a second distributed figure representing the axial force, or presenting a third distributed figure representing the parallelism.

In order to achieve the above object, according to one aspect of the construction training system of the sealing material of the present invention, as a sealing training system of the sealing material, a sealing training material for the sealing joint, which is sealed by fitting the sealing material to the flange joint and tightening with a plurality of bolts. A seal construction having a first sensor for detecting the axial force of the plurality of bolts to which the bolt is fitted or a second sensor for detecting the parallelism between the flanges of the flange seam, and a plurality of coordinates extending radially from the center point. And display the target axial force of the bolt, or the detected axial force of the bolt, on each coordinate as a distance from the center point, and connect the target axial force on the adjacent coordinates or between the detected axial forces on the coordinates. A diagram for generating a first distribution figure by the target axial force or a second distribution figure by the detection axial force It includes the information generating means.

In order to achieve the above object, according to one aspect of the construction training system of the sealing material of the present invention, as a sealing training system of the sealing material, a sealing training material for the sealing joint, which is sealed by fitting the sealing material to the flange joint and tightening with a plurality of bolts. A seal construction portion having a first sensor for detecting the axial force of a plurality of bolts to which the bolt is inserted, or a second sensor for detecting the parallelism between flanges of the flange joint, and a wired portion with the first sensor or the second sensor. Or wirelessly connected, generating distribution information of the target axial force by target axial force and position information on the axial force, generating distribution information of the axial force by the axial force and position information, or parallelism information by the parallelism An information generating unit for generating a; and the information generating unit is connected in a wired or wireless manner, the target axial force on the coordinates Presenting showing a first distribution shape, and provided with a monitor presenting a second distribution shape indicative of the axial force, or present a third distribution shapes indicative of the parallelism.

According to the present invention, any of the following effects can be obtained.

(1) A distribution figure indicating the clamped state of the seal can be presented in real time on the coordinates, and the clamped state of the seal member can be easily visually recognized by the shape state of the distributed figure and the distance from the center.

(2) When the axial force is increased or decreased, the looseness due to the elastic interaction peculiar to the flange fastening can be easily recognized as the shape change of the axial force distribution figure, and based on this recognition, the bolt tightening matching the target tightening force is performed. It is possible to realize an appropriate seal with an optimal clamping force.

(3) Since the relationship between the torque applied to the bolt and the axial force distribution can be easily grasped, the skilled worker can improve the habits and improve the skills, thereby improving the reliability of the seal construction.

(4) It can be utilized as a training support tool for seal materials, and can contribute to the speeding up of skill up.

(5) Monitoring the parallelism between the flanges of flange joints in real time, it is easy to confirm that not only the proper fastening force but also the fastening procedure and bolt fastening force affect the parallelism of the flange.

FIG. 1: is a figure which shows the construction monitoring apparatus of the sealing material which concerns on 1st Embodiment.
2 is a flowchart illustrating a processing procedure of construction monitoring.
3 is a diagram showing a distribution figure of the target axial force on the coordinates, and showing the axial force changed by the elastic interaction.
4 is a diagram illustrating a construction monitoring apparatus for a sealing material according to Example 1;
5 is a flowchart showing a processing procedure of construction monitoring.
6 is a diagram showing a distribution diagram of parallelism of flanges.
It is a figure which shows the construction monitoring system of the sealing material which concerns on Example 2. FIG.
8 is a view showing a bolt provided with a strain gauge.
9 is a diagram illustrating a configuration of a construction monitoring system.
10 is a flowchart showing the procedure of seal construction.
11 is a flowchart showing a processing procedure of construction monitoring.
12 is a diagram illustrating an example of the axial force table.
It is a figure which shows an example of the parallelism table.
It is a figure which shows the change of the distribution figure of axial force.
15 is a diagram illustrating a change in the distribution figure of the axial force.
16 is a diagram for explaining setting of target axial force for each gasket according to the third embodiment.
17 is a diagram for explaining display of a fastening procedure according to the fourth embodiment.
18 is a flowchart showing a processing procedure for determining whether the fastening force according to the fifth embodiment is passed.
It is a figure which shows the distribution figure of a clamping force, and an evaluation table.
20 is a flowchart showing a processing procedure for determining whether the fastening procedure according to the sixth embodiment has passed.
21 is a diagram illustrating a seal construction unit according to the seventh embodiment.

<Construction monitoring device>

1 illustrates a construction monitoring apparatus for a sealing material according to one embodiment. The structure shown in FIG. 1 is an example, and this invention is not limited to such a structure.

The construction monitoring apparatus (henceforth simply "construction monitoring apparatus") 2 of this sealing material is provided in the sealing construction part 4. This seal construction part 4 is a monitoring object of the construction monitoring apparatus 2, and is an example of a seal construction apparatus. This seal construction part 4 is provided with the flange joint 6, and seals the gasket 8 which is an example of a sealing material in this flange joint 6, and seals it.

The flange joint 6 is provided with a pair of flanges 6-1 and 6-2 as a connecting means of the pipes 10-1 and 10-2. The flange 6-1 is integrally formed at the end of the pipe 10-1, and the flange 6-2 is integrally formed at the end of the pipe 10-2.

The gasket 8 is provided between the opposing surfaces of the flanges 6-1 and 6-2. The shape of this gasket 8 is annular and is smaller in diameter than the flanges 6-1 and 6-2 and larger in diameter than the inner diameters of the pipes 10-1 and 10-2. Normally, the flange seam 6 is not necessary as long as the pipes 10-1 and 10-2 are connected. However, the use of the flange seam 6 is an example of the pipes 10-1 and 10-2. For example, in order to prepare for the need for regular attachment and detachment by maintenance or the like, the seals provide a function equivalent to the seamless piping with the connected pipes 10-1 and 10-2.

Each flange 6-1, 6-2 is equipped with the some bolt 12-1, 12-2 ... 12-8. Each bolt 12-1, 12-2, 12-8 is formed at an angular interval of a constant angle θ at a circumferential position at an equidistant distance from the center O of the pipes 10-1, 10-2. Is placed. Angle (theta) is an example of the positional information of an axial force. The bolts 12-1, 12-2 ... 12-8 pass through the flanges 6-1, 6-2 at equal positions, and fit the flanges 6-1, 6-2 with the nuts ( 14) is installed. Since the nut 14 is fastened by the arrangement of the bolts 12-1, 12-2 ... 12-8, it is possible to give the gasket 8 an equal fastening force.

In order to provide torque T to each nut 14, the appropriate fastening tool 16 is needed. As this fastening tool 16, a ratchet torque wrench, a digital torque wrench, a bolt tensioner, a ratchet wrench, a spanner, a spectacle wrench, a blow wrench, etc. are mentioned, for example. When the fastening tool 16 is applied to the nut 14 and the torque T is applied, the axial force F is generated in the bolts 12-1, 12-2 ... 12-8 in the Z axis direction in the drawing, This axial force F becomes a clamping force with respect to the gasket 8.

The sensor group 18 which detects each axial force F is provided. This sensor group 18 is provided with the some sensor 18-1, 18-2 ... 18-8 corresponding to each bolt 12-1, 12-2 ... 12-8. . As each sensor 18-1, 18-2 ... 18-8, the sensor which outputs the axial force F as an electrical signal may be used, and any of a pressure sensor, a strain gauge, a variometer, a load meter, etc. may be used, The gasket 8 may be a sensor for directly detecting the clamping force.

Each sensor output of the sensor group 18 is introduced into and integrated into the data integration unit 20. Each detection force is, for example, an electrical signal and is electrically integrated into the data accumulator 20. This data accumulator 20 may be configured by a computer or an existing data logger may be used.

Each detection storage force is introduced into the information generation section 22 from the data accumulation section 20 at a predetermined timing. This information generator 22 is an example of figure information generating means. A computer is used for this information generation part 22, for example. The information generating section 22 digitizes and introduces each of the detected axial forces, and executes information processing for constructing the tightening force. The function of the information generating unit 22 which performs this information processing includes the function of generating a plurality of coordinate axes y extending radially from the center point O, the target axial force Fref of the bolt, or the detection axial force F of the bolt on each coordinate axis y. A function of displaying the distance from the center point O, between the target axial force Fref on the adjacent coordinate axis y or between the detected axial forces F, so as to connect to the first distribution figure 26-1 or the detected axial force by the target axial force on the coordinate axis y; The function of generating the second distribution figure 26-2 by means of the above is included. This function is obtained by information processing.

In this information processing,

a) introduction and storage of each detection axial force

b) generation of position information of each detected axial force and drawing information indicating the distribution of the detected axial force;

c) generation of coordinates to develop the axial force distribution

d) generation of construction information representing the distribution of target axial force using target axial force and position information;

And the like are included. The target axial force is an axial force necessary for proper tightening force to the gasket 8.

The coordinates and the drawing information obtained by this information processing are provided to the monitor 24, and the axial force figure is presented on the screen of the monitor 24 together with the coordinates. The monitor 24 is an example of an information presenting unit for presenting a seal situation to an operator or a manager. The monitor 24 may be connected to the information generating unit 22 by wire or wirelessly, and may use a display of a personal computer (PC).

<Monitoring of axial force>

Next, FIG. 2 has shown the process procedure of monitoring of detection axial force. This processing procedure is an example of the construction monitoring program and the construction monitoring method of the present invention.

This processing procedure selects the gasket 8 suitable for construction conditions beforehand, and is the process after the temporary tightening of each bolt 12-1, 12-2 ... 12-8.

It is judged whether the bolts 12-1, 12-2 ... 12-8 are fastened (S101), and if fastened (YES in S101), each sensor outputs from the sensor group 18 to the data integration unit 20. Is introduced and the detection axial force is integrated (S102). This accumulation corresponds to the introduction and storage of a) the respective detection axial forces of the information processing described above.

The drawing process of the detected accumulation force and the target accumulation force is performed (S103). This process includes b) the generation of position information of each of the detected axial forces and the drawing information indicating the distribution of the detected axial forces, c) the generation of coordinates to develop the axial force distribution, and d) the target axial force using the target axial force and position information. Generation of plot information indicating the distribution of is included.

After this drawing process, the distribution figure of a detected axial force and a target axial force is displayed on the monitor 24 on a coordinate (S104).

During this display, the change in the detected axial force is monitored, and it is judged whether the tightening of the bolts 12-1, 12-2 ... 12-8 is completed (S105). If the bolts 12-1, 12-2 ... 12-8 are fastened to completion (NO in S105), the processing of S102 to S105 is continued. In this way, the change in the detection axial force is reflected in the distribution figure displayed on the monitor 24, and the detection axial force is dynamically displayed as the change in the distribution figure.

When the tightening of the bolts 12-1, 12-2 ... 12-8 is completed (YES in S105), a distribution figure of the target axial force and the detected axial force is displayed on the coordinates when the fastening is completed (S106). Complete the monitoring process. This makes it easy to check whether the axial force coincides with the target axial force.

3 shows an example of each distributed figure of the detected axial force and the target axial force in monitoring the axial force.

As shown to A of FIG. 3, the coordinate which has several coordinate axes y1, y2 ... y8 radially is set to zero at the center. [1], [2] ... [8] are bolt numbers, and the coordinate axes y1, y2 ... y8 correspond to the arrangement of the plurality of bolts 12-1, 12-2 ... 12-8. Doing.

In this example, although the number of coordinate axes corresponds to the number of bolts 8, the number of coordinate axes y may be set in accordance with the number of bolts arranged. Each coordinate axis y1, y2 ... y8 is provided with the scale which shows the positive axial force level in the direction away from the 0 point, and the x-axis is set on the same scale.

F1ref, F2ref ... F8ref represent the target axial force of each bolt 12-1, 12-2 ... 12-8 about the appropriate fastening force with respect to the gasket 8. Normally, F1ref, F2ref ... F8ref are set to the same value Fref. When each target axial force F1ref, F2ref ... F8ref is connected, for example by a 2-dot chain line, the distribution figure 26-1 of target axial force Fref is produced | generated as a 1st distribution figure. In this case, the distribution figure 26-1 is an octagonal distribution figure by F1ref and F2ref ... F8ref. In this case, the distribution figure 26-1 is a regular octagon in the point of (theta) = 45 [degrees], and when the number of bolts differs, the distribution figure 26-1 becomes a polygonal shape according to it.

When the detection axial force of each bolt 12-1, 12-2 ... 12-8 is set to F1, F2 ... F8, each axial force F1, F2 ... F8 at the time of detection is y1, y2 ... It is plotted on the scale position on y8, and in this case, it is set as distribution figure 26-2.

The relationship between detection axial force F1, F2 ... F8 and target axial force F1ref, F2ref ... F8ref at this detection time point is

F1ref> F1, F1ref-F1 = ΔF1 ... (1)

F2ref> F2, F2ref-F2 = ΔF2 ... (2)

F3ref> F3, F3ref-F3 = ΔF3 ... (3)

       ······

F8ref> F8, F8ref-F8 = ΔF8 ... (4)

to be.

While confirming this distribution figure 26-2, the tightening tool 16 increases the axial force F by ΔF1, ΔF2 ... ΔF8, and detects the target axial forces F1ref, F2ref ... F8ref to the detected axial forces F1, F2 ... You can reach F8.

However, for example, as shown in B of FIG. 3, the axial force F1 is increased in the direction of the arrow a to reach the target axial force F1ref.

At this time, on the bolt 12-1 side,

F1ref = F1, F1-F1ref = 0 ... (5)

Becomes On the contrary, on the bolt 12-2 side, the axial force F2 decreases to F2 'under the influence of the elastic interaction of the flanges 6-1 and 6-2.

F2 '<F2, F2-F2' = ΔF2 '> 0 (6)

Becomes Similarly, the bolt 12-8 side is also affected by the elastic interaction of the flanges 6-1 and 6-2 so that the axial force F8 decreases to F8 '.

F8 '<F8, F8-F8' = ΔF8 '> 0 (7)

Becomes

For this reason, in the bolts 12-2 and 12-8 side, Formula (1) and Formula (4),

F2ref-F2 '= ΔF2 + ΔF2'> ΔF2 (8)

F8ref-F8 '= ΔF8 + ΔF8'> ΔF8 (9)

Becomes In short, when the axial force F1 on the bolt 12-1 side reaches the target axial force F1ref, it is necessary to increase the axial force necessary to reach the target axial forces F2ref and F8ref on the bolts 12-2 and 12-8 side.

In short, the reduction of the axial forces F2 and F8 on the neighboring bolts 12-2 and 12-8 with the bolts 12-1 interposed between the flanges 6-1, The elastic interaction between the flanges 6-1 and 6-2, between 6-2), causes expansion on the bolts 12-2 and 12-8 to generate the bolts 12-2 and 12-8. It means looseness occurring on the side.

It is very advantageous to easily recognize the influence of such elastic interaction from the change in the distribution figure 26-2. That is, by visualizing the phenomenon of the reduction of the axial force due to the elastic interaction, the influence due to the elastic interaction can be visually recognized, and the increase or decrease of the axial force can be sensed by the torque T by the fastening tool 16. Therefore, the worker can learn the skills of flange fastening.

<Effect of one embodiment>

According to this one embodiment, the following effects are obtained.

(1) Since the distribution figures 26-1 and 26-2 of the target axial force Fref and the detected axial force F are plotted on the coordinates and displayed on the screen, the relative figures are compared by the contrast of the distribution figures 26-1 and 26-2. By grasping the increase and decrease direction of the axial force difference, the axial force F can be added or subtracted, the target axial force Fref is reached, and an appropriate seal state can be realized.

(2) The magnitude of the detection axial force F is the magnitude of the detection axial force F plotted on the scale, that is, the distance away from the zero point, the shape deformation of the distribution graphic 26-2, and the like compared with the distribution graphic 26-1. It can be grasped | ascertained easily, and the increase / decrease relationship of a fastening state can be visually recognized easily from the detection axial force F. As shown in FIG.

(3) Since the magnitude of the detected axial force F is indicated by the distance in the direction away from the zero point, the direction of increase and decrease of the tightening force can be recognized based on the zero point, and the detected axial force F is the operating direction of the tightening tool 16. In short, the direction of increase and decrease of torque T can be grasped | ascertained easily.

(4) Although a certain fastening procedure exists in the bolts 12-1, 12-2 ... 12-8, when this fastening procedure is not executed, the shape of the distribution figure 26-2 of the detection axial force F Or it can determine from the deformation state.

(5) The learner of seal construction can accelerate the learning of seal construction, and even a skilled person can use it for the degree of learning and the correction of construction.

(6) The fastening tool 16 includes, for example, a ratchet torque wrench, a digital torque wrench, a bolt tensioner, a ratchet wrench, a spanner, a glasses wrench, a blow wrench, and the like. The fastening results by these tools can be compared with the distribution figure of the detection axial force, and the selection information at the time of selecting an appropriate tool for the seal construction with high quality can be obtained.

(7) An ideal seal state can be realized by the operation of reaching the detection axial force F to the target axial force Fref while comparing the distribution figures 26-1 and 26-2 of the target axial force Fref and the detection axial force F on the common coordinates. Can be.

(8) The change of the distribution figure 26-2 can be recognized according to the detection axial force F, and the influence of the elastic interaction which the flange seam 6 has can be recognized easily, and based on the influence of the elastic interaction, The tightening force can be provided, and the skill of the tightening work can be improved.

Example 1

4 shows the construction monitoring apparatus for the sealing material according to the first embodiment. The same reference numerals are attached to the same parts as in FIG.

In the construction monitoring apparatus 2 of the first embodiment, in addition to the plurality of first sensors 18-1, 18-2, 18-18, four sets of the second sensor group 28 as the plurality of second sensor groups 28. Two sensors 28-1, 28-2, 28-3, 28-4 are provided. The sensors 28-1, 28-2, 28-3, and 28-4 may use a displacement meter, for example, which detects the gap between the flanges 6-1 and 6-2.

In this example, the sensors 28-1, 28-2, 28-3, 28-4 are arranged at the angular interval of 90 [degrees], for example, on the side of the bolt 12-1, the sensor 28-1, The sensor 28-2 is arranged on the bolt 12-3 side, the sensor 28-3 is arranged on the bolt 12-5 side, and the sensor 28-4 is arranged on the bolt 12-7 side, and the flange ( The gap is detected at the circumferential positions of four points 6-1 and 6-2). Parallelism is calculated | required from each clearance gap. The detection position of parallelism may be set more than four points.

The sensor outputs of the respective sensors 28-1, 28-2, 28-3, 28-4 are introduced into the data accumulator 20 and provided to the information generator 22. The information generation unit 22 generates parallelism information from the sensor output, and performs information processing for generating the drawing information of the parallelism.

This information processing

e) introduction and storage of each sensor output

f) generating parallelism information from the positional information of each gap and each sensor output, and generating the drawing information of the parallelism.

g) generation of coordinates representing parallelism

And the like are included.

The monitor 24 produces | generates the 3rd distribution figure 26-3 (FIG. 6) which shows the parallelism of the flanges 6-1, 6-2 by the drawing information provided from the information generation part 22. FIG. .

<Monitoring of parallelism>

5 shows the processing procedure for monitoring the parallelism. This processing procedure is an example of the construction monitoring program and the construction monitoring method of the present invention.

Also in this processing procedure, it is determined whether the bolts 12-1, 12-2 ... 12-8 are fastened (S201), and if fastened (YES in S201), the data accumulator ( Each sensor output is introduced into 20, and the sensor output is integrated (S202). The drawing process of the parallelism between the flanges 6-1 and 6-2 is performed from the detected gap (S203).

After this drawing process, the distribution figure 26-3 which shows parallelism on a coordinate is displayed on the monitor 24 (S204).

During this display, the change in the detected axial force is monitored, and it is judged whether the fastening of the bolts 12-1, 12-2 ... 12-8 is completed (S205). If the bolts 12-1, 12-2 ... 12-8 are tightened before completion (NO in S205), the processing of S202 to S205 is continued. Thereby, the change of parallelism is reflected in the distribution figure 26-3 displayed on the monitor 24, and the change of parallelism is displayed dynamically.

When the fastening of the bolts 12-1, 12-2 ... 12-8 is completed (YES in S205), a distribution figure of parallelism upon completion of the fastening is displayed on the coordinates (S206), and the construction monitoring process is completed. do.

6 has shown the distribution figure which shows the parallelism state of the flanges 6-1 and 6-2 which generate | occur | produce in the flange joint 6. As shown in FIG.

As shown in A of FIG. 6, the coordinate axes y11, y12, y13, and y14 corresponding to the positions of the sensors 28-1, 28-2, 28-3, and 28-4 are set in the display of the distribution figure of the parallelism. do. [1], [2], [3], and [4] are sensor numbers and indicate detection positions of gaps. Each coordinate axis y11, y12, y13, y14 is provided with the scale which plots a clearance gap. Coordinate axis x is displayed by connecting the same scale.

As shown in A of FIG. 6, the gaps D1, D2, D3, and D4 detected in the coordinate axes y11, y12, y13, and y14 are plotted. Since D1 ≒ D2 ≒ D3 분포 D4, the distribution figure 26-3 shows a substantially square. That is, in the state shown to A of FIG. 6, the allowable parallelism is obtained.

In contrast, in the state shown in B of FIG. 6, D1 <D2 ≒ D3 ≒ D4, and the distribution figure 26-3 is a deformed figure. In other words, in the state shown in B of FIG. 6, no parallelism is obtained.

<Effect of Example 1>

According to this Example 1, the following effects are obtained.

(1) Even if the axial force is within the proper range of the target axial force from the monitoring of the axial force, if there is a lack of parallelism between the flanges and a nonuniform tightening occurs, there is a possibility that deflection may occur in the gasket surface pressure, but such a problem can be avoided by the parallelism monitoring. have.

(2) From the monitoring of the axial force Even if the axial force is in the proper range of the target axial force, if the parallelism between the flanges is lacking, it can be easily recognized by the parallelism monitoring to the operator to generate non-uniform tightening. Even if each fastening force between flanges by an axial force is appropriate, it can be recognized that the parallelism between flanges changes according to the fastening procedure between flanges.

(3) By axial force monitoring and parallelism monitoring, we can plan skill up of seal construction.

Example 2

7 shows the construction monitoring system according to the second embodiment. This construction monitoring system 30 comprises the construction monitoring apparatus of the sealing material mentioned above as a training system. In FIG. 7, the same code | symbol is attached | subjected to the same part as FIG. 1, and description of the sensor 28-1, 28-2, 28-3 is abbreviate | omitted.

The construction monitoring system 30 is provided with first and second mounts 32 and 34. The mount 32 is a fixed mount securely fixed to the floor 36. The mount 34 is a movable table movable by the caster 38 and can move to the desired position on the floor 36 with respect to the mount 32.

On the mount 32, the seal construction part 4 described above is mounted, and the cable 40 of each sensor 18-1, 18-2 ... 18-8 (FIG. 1) is mounted in the mount 32. It passes through and is pulled out from the side part of the pedestal 42 side, and is guide | induced to the mount 34 side. In this example, the pipe 10-2 described above is provided on the mount 32 side.

The mount 34 is provided with a data logger 46 and a personal computer (PC) 48 on the shelf 44 side, and a monitor 24 is provided on the top plate 50. The data logger 46 is an example of the data accumulation unit 20 described above, and the PC 48 is an example of the information generation unit 22 described above. The cable 40 on the sensor group 18 side is connected to the data logger 46, and sensor outputs of the respective sensors 18-1, 18-2, 18-18 are introduced. The data logger 46 and the PC 48 are connected by a cable 52, so that data can be transmitted and received between them.

When the practitioner 54 operating the fastening tool 16 moves the mount 34 relative to the mount 32 and sets the screen 56 of the monitor 24 to be visible, each bolt 12- The distribution figure 26-2 etc. of the detection axial force F which change with the torque T added to 1, 12-2 ... 12-8 can be confirmed easily from an image, and it can be constructed with the confirmation.

<Sensors 18-1, 18-2 ... 18-8>

8 shows the bolt provided with the strain gauge. The deformation gauge 60 is provided inside the bolt body 58. This strain gauge 60 is an example of the sensors 18-1, 18-2, 18-8, and is applied to the torque T applied to the bolts 12-1, 12-2. The deformation | transformation of the bolt main body 58 by this is detected, and this deformation represents the axial force F. As shown to FIG. A cable 40 is connected to the strain gauge 60, and the detection axial force F is taken out as a sensor output through the cable 40.

<PC 48>

9 shows an example of the configuration of the construction monitoring system 30. The PC 48 is provided with a processor 62, a storage unit 64, an input / output unit (I / O) 66, a communication unit 68, and an operation input unit 70.

The processor 62 executes information processing such as various computer programs such as an operating system (OS) and a construction monitoring program in the storage unit 64. In addition to the processes including the above-described processes a) to e), the information processing includes various processes that can be performed by a computer, such as calculation of clamping force, recording of construction history, control of the monitor 24, monitoring of construction, and construction management. do.

The storage unit 64 is provided with, for example, a read-only memory (ROM) and a random-access memory (RAM) as a storage device, and the OS and a monitoring program are stored in the ROM. A database (DB) 72 that stores detection information, drawing information, and the like is constructed in the storage unit 64, and the detection information introduced from the data logger 46 is stored in the DB 72. The detection information includes each sensor output of the sensor groups 18 and 28.

The I / O 66 is used for sending and receiving image data with the monitor 24. The data logger 46 is connected to the communication unit 68 by a cable 52.

The operation input unit 70 is configured of, for example, an input device such as a keyboard or a mouse, and is used for screen operation and information input.

<Process of conclusion>

10 has shown the fastening procedure of the gasket 8. As shown in FIG. Prior to tightening, construction conditions are input (S301). This construction condition is the premise information of the selection of the gasket 8 and the magnitude of the clamping force.

The gasket 8 matching the construction conditions is selected (S302). The selection of the gasket 8 selects the gasket 8 that coincides with the target of the seal between the flanges 6-1 and 6-2. If a failure occurs in the gasket selection, the tightening procedure and the alignment are appropriate. Even if a proper sealing state is not obtained.

Select whether the fastening management (S303). Fastening management manages the fastening tool 16, the fastening force to apply, and the procedure of fastening. Specifically, at least,

h) selecting an appropriate fastening tool (16);

i) obtaining the necessary tightening force for the seal with a suitable fastening tool (16);

j) tightening in the correct sequence

This is necessary. Therefore, in the case of having the fastening management, these are satisfied, and in the "nothing" of the fastening management, these are not satisfied or are left to the freedom of the contractor.

With tightening management (YES in S303), the tightening force according to the construction conditions is calculated (S304). This fastening force may be calculated using a gasket fastening force (total load), fastening torque, bolt diameter, recommended fastening surface pressure, gasket contact area, torque coefficient, number of bolts and the like.

If the gasket clamping force is W, the recommended clamping surface pressure is sigma and the gasket contact area is Ag, the gasket clamping force W is

W = σg × Ag (10)

Becomes The gasket contact area Ag is determined from the contact outer diameter and the contact inner diameter of the gasket 8,

Ag = (π / 4) × {(contact outer diameter) ^2- (contact inner diameter) ² } ... (11)

to be. When the gasket tightening force W and the tightening torque are T [Nm], the torque coefficient (0.2) is k, the male thread outer diameter (m) is d, and the number of bolts is bn, the tightening torque T is

T = k × W × d / bn (12)

Is given by

After the calculation result, the fastening tool 16 and the fastening procedure are designated (S305), and the fastening is performed by the designated fastening tool 16 and the fastening procedure (S306). The fastening procedure may be a predetermined fastening procedure, for example, a fastening procedure according to JIS (Japanese Industrial Standards) or ASME (American Society of Mechanical Engineers: American Mechanical Society) standard. Measurement by the circumferential direction, the number of turns, and the notch between the flange and the like.

The tightening tool 16 is applied to the nut 14 temporarily tightened to each of the bolts 12-1, 12-2, 12-8, and the torque T is applied from the tightening tool 16 to apply an appropriate tightening force. . This fastening force is transmitted to the flanges 6-1 and 6-2 from the respective bolts 12-1 and 12-2.

Elastic interactions are generated in the flanges 6-1 and 6-2 by the axial force F of each of the bolts 12-1 and 12-2... 12-8. In the elastic interaction, for example, when the bolt 12-1 is tightened, looseness occurs in the adjacent bolts 12-2 and 12-8 with the bolt 12-1 interposed therebetween, This is a phenomenon in which the fastening force falls on the bolt 12-2 and 12-8 side.

During this fastening, the construction monitoring process is performed (S307). In this construction monitoring process, the distribution figure of the detection axial force is displayed dynamically on the coordinate.

In the construction monitoring process, it is determined whether the fastening is completed (S308). When the fastening is continued (NO in S308), the steps S306 to S308 are repeated, and when the fastening is completed (YES in S308), this processing ends.

In S303, when fastening management is "none" (NO of S303), it becomes a construction instead of S304-S308. In short, the construction is left to the freedom of the practitioner, and fastening is performed by the arbitrary fastening tool 16 and the fastening procedure depending on the feeling of the practitioner (S309). In this fastened state, construction monitoring is performed similarly to S307 (S310), and construction is finished by the practitioner's intention.

<Construction monitoring>

FIG. 11 has shown the processing procedure of the construction monitoring process of S307 of seal construction shown in FIG. This processing procedure is an example of the execution procedure of the program run by a computer, and is also an example of the construction monitoring method of the sealing material which concerns on this invention.

Construction of the sealing material includes temporary tightening and this tightening process. Temporary tightening is a process performed before the main tightening, and the mounting of the nut 14 to the bolts 12-1, 12-2 ... 12-8, alignment adjustment, tightening before the main tightening of the nut 14, etc. This includes. Alignment adjustment includes positioning of the gasket 8 and the bolts 12-1, 12-2 ... 12-8. This fastening gives the torque T to the bolts 12-1, 12-2 ... 12-8 by the fastening tool 16, and reaches the target axial force (target fastening force) step by step.

In this construction monitoring process, the processor 62 introduces the respective detection axial forces from the sensor group 18 by executing the program (S401), and performs the graphic processing of the detection axial force F and the target axial force Fref (S402). ).

Under the control of the processor 62, the monitor 24 dynamically displays the distribution figure 26-2 of the detection axial force F along with the distribution figure 26-1 of the target axial force Fref on the coordinates (S403). .

During the graphic processing and the tightening construction such as the detected axial force F, it is monitored whether the fastening processing has reached a predetermined number of times (S404). If the predetermined number of times, for example, has not reached the number of times 4 to 6 (NO in S404), S401 to S404 are continuously executed. Then, when the fastening process reaches the predetermined number of times (YES in S404), the seal construction is completed (S405) and the process ends.

<Accumulation table 74>

12 shows the axial force table 74. The construction monitoring system 30 is provided with an axial force table 74 for recording the number of times of rotation and the detected axial force. This axial force table 74 is included in the DB 72.

The axial force table 74 stores the number of turns and the detected axial force F of the sensors 18-1, 18-2, 18-18. With the number of times, the number of cycles is a single operation for fastening all of the bolts 12-1, 12-2 ... 12-8 in a predetermined order, and this is a plurality of times, for example, 4 to 6 to be. Each detection axial force is introduced from the sensor group 18 at predetermined timing every turn. For example, in the circumferential number I, the detection axial forces F1101 and F1102 are introduced at a predetermined timing from the sensor 18-1, and the detection axial forces F2101 and F2102 are introduced at the same timing from the sensor 18-2. The same processing is performed below. The detected detection force F is stored in the force table 74 and used for the process of drawing information.

<Parallel table (76)>

13 shows the parallelism table 76. In the construction monitoring system 30, a parallelism table 76 for storing detection parallelism is provided. This parallelism table 76 is included in the DB 72.

The parallelism table 76 stores the gap size between the number of turns and the flange detected by the sensors 28-1, 28-2, 28-3, 28-4. The introduction of each clearance dimension detected from the sensor group 28 at a predetermined timing is performed every turn. For example, in the number of times I, the gap dimensions D1101, D1102, D1103, D1104 are introduced from the sensor 28-1 at a predetermined timing, and the gap dimensions D2101, D2102 at the same timing from the sensor 28-2. ... is introduced and the same processing is performed below. The introduced gap dimension D is stored in the parallelism table 76 and used for the determination of the parallelism between the flanges and the display thereof.

<Generation of Distribution Figures of Target Axial Force and Detected Axial Force, and Adjustment of Tension Force>

A of FIG. 14 has shown each distribution figure of the target axial force and the initial detection axial force. At the start of the construction monitoring process, the distribution figure 26-1 of the target axial force Fref is displayed on the coordinates, and the distribution figure 26-2 of the detection axial force F of the temporary tightening state is displayed on this, for example. do. At this point in time, the detection axial force F is small and near the zero point, and the distribution figure 26-2 is displayed in a very narrow area than the distribution figure 26-1 of the target axial force Fref. In short, it can recognize that a detection axial force F is small by this.

B of FIG. 14 has shown each distribution figure of the target axial force and the detected axial force of middle period. When the number of times of fastening increases, the detection axial force F becomes large and the distribution figure 26-2 is expanded accordingly. At this point in time, the detection axial force F is smaller than the target axial force Fref of the distribution axial force Fref from the zero point side, but the detection axial force F is smaller than that of the distribution axial force Fref of the distribution figure 26-1. 2) is displayed. At this point of time, it can be seen that the detection axial force F is insufficient. And in the coordinate axis y4, the detection axial force F4 protrudes from the same scale. From this protrusion state, it can be understood that the fastening by the detection axial force F4 is large with respect to another axial force F. FIG.

C of FIG. 14 has shown each distribution figure of the target axial force and the detection axial force of the terminal. The number of times of fastening reaches the last time, and the detection axial force F is equal to or near the target axial force Fref. In other words, the distribution figure 26-2 of the detection axial force F is a coincidence figure or similarity with the distribution figure 26-1 of the target axial force Fref, whereby a necessary seal state or ideal seal state is obtained.

<Adjustment of axial force>

A of FIG. 15 has shown the state in which the detection axial force F became close to target axial force Fref. In the bolt 12-1 of the coordinate axis y1, the detection axial force F1 has reached the target axial force Fref. In contrast, the axial force F2 is insufficient in the bolt 12-2 of the coordinate axis y2.

In this state, when the axial force F2 of the bolt 12-2 is increased, loosening occurs due to elastic interaction on the bolts 12-1 and 12-3, which sandwich the bolt 12-2, and FIG. As shown by B, axial force F1, F3 decreases. From this state, in order to reach the detection axial forces F1 and F3 to the target axial forces F1ref and F3ref, it is necessary to increase and decrease the axial forces F1 and F3 and to reduce the axial force F2 of the bolt 12-2. .

<Effect of Example 2>

According to the second embodiment, the following effects are obtained.

(1) When a torque wrench is used for the fastening tool 16, for example, some deviation occurs in the fastening force. The fastening of the bolts 12-1, 12-2, 12-8 has a predetermined fastening procedure specified in the JIS standard or the like. If this procedure is ignored or incorrectly corrected, misalignment may occur and the so-called unevenness may occur. Generate a tightening state. From this point of view, in order to achieve an appropriate seal and to increase the fastening efficiency, the axial force F applied to each of the bolts 12-1, 12-2, 12-8 is monitored in real time, and necessary for proper fastening. It is necessary to achieve construction skills. Moreover, even a skilled person is required to confirm a function, correct a habit, and attain higher skill up. The seal is completed on the condition that the fastening by applying the proper axial force F and the proper procedure are followed. Appropriate tightening force is applied to the gasket 8 between the flanges 6-1 and 6-2 by preventing the proper procedure, proper tightening force, lack of fastening or excessive tightening, and preventing fastening. The gap between 1 and 6-2) can be filled with the gasket 8 to achieve an appropriate seal.

(2) According to this construction monitoring system 30, the relationship between the clamping force of an operator and the clamping force which acts on a member can be visually recognized.

(3) The fastening state of the bolt fastened by an operator can be visually recognized and assisted by a worker's fastening feeling, and can be corrected.

(4) It can be used for the training of construction of workers by using it for the practice system of bolting of the pipe connection part.

(5) By using this construction monitoring system 30, it can contribute to the improvement of the construction ability of an operator.

(6) The function of a member such as a seal provided for the fastening can be exhibited without being affected by the construction, and the reliability of the construction can be improved.

Example 3

A of FIG. 16 has shown the processing procedure of setting the target axial force for every gasket 8 concerning Example 3. As shown in FIG. In this processing procedure, the target axial force is calculated based on the selection S501 of the gasket 8 (S502). The distribution figure representing this target axial force is displayed on the coordinates (S503).

B of FIG. 16 has shown the distribution figure which shows the target axial force along the gasket 8 displayed on the coordinate. The distribution figure 26-11 shows the target axial force for the gasket 8-1, for example, and the distribution figure 26-12 shows the target axial force for the gasket 8-2, In addition, the distribution figure 26-13 has shown the target axial force with respect to the gasket 8-3, for example.

When the distribution figure is displayed on the coordinates with the calculation of the appropriate target axial force for each gasket 8 thus selected, it is possible to easily realize the required clamping force in accordance with the selection of the gasket 8. Although the target axial force and the target clamping force differ depending on the gasket 8 and the bolt 12, for the calculation of the clamping force, for example, the recommended tightening surface pressure of the gasket and the dimension information of the bolt are used to calculate the tightening torque. You can also use the system.

Example 4

17 shows the tightening procedure display of the bolt according to the fourth embodiment.

The plurality of bolts arranged on the circumference of the flange joint 6 need to be subjected to temporary tightening and main tightening in a certain procedure.

For example, as shown in A of FIG. 17, the fastening mark 78 is moved from the bolt 12-8 which completed the fastening to the bolt 12-1 which performs the next fastening, and a fastening arrives. Suggests a bolt 12-1.

In this case, as shown in B of FIG. 17, the fastening mark 78 is made into a broken line display, for example, as a fastening end mark, and the following fastening is performed to the bolt 12-1 which just finished fastening. You may move the fastening mark 78 with the bolt 12-2, and may suggest the procedure.

In this way, by allowing the fastening to be performed in accordance with the procedure display, misalignment can be prevented and nonuniform fastening can be prevented. Reliable construction and skill up can be increased. Instead of the fastening mark 78, the bolt number to which the fastening comes may be colored or flashing different from the other bolt numbers.

Example 5

18 shows a processing procedure for determining the detection axial force according to the fifth embodiment. This processing procedure is an example of a computer program executed on the PC 48.

In this processing procedure, the target shaft force with respect to the surface pressure required for the selected gasket 8 is calculated (S601), and the target shaft force and the detected shaft force are compared (S602).

It is determined whether the detected axial force F is in the allowable range of the target axial force Fref, for example, ± 15 [%] (S603). If the detected axial force F is within the allowable range of the target axial force Fref (YES of S603), the axial force is passed as a result of the determination (S604), and if the detected axial force F is outside the allowable range of the target axial force Fref (NO of S603), As a result of the determination, the axial force is rejected (S605).

A comprehensive evaluation is performed using this individual judgment result (S606). In this comprehensive evaluation, if all of the individual evaluations are passed, a pass is made. If any of them pass, a pass is made. The result of the determination is displayed on the monitor 24 to notify the pass or fail decision (S607).

A of FIG. 19 has shown the distribution figure 26-2 of the detection axial force F displayed on the coordinate as an evaluation object. In this example, it can be seen that the axial forces F3 and F7 are smaller than the target axial forces F3ref and F7ref, and the axial forces F6 are larger than the target axial forces F6ref.

B of FIG. 19 has shown an example of the evaluation table. In this evaluation table 80, a target axial force column, an allowable range column, a detection axial force column, an individual evaluation column and a comprehensive evaluation column are set. The target axial force = Fref = 30 [kN], and the allowable range of axial force = Fref + 15 [%] = 25.5 [kN]-34.5 [kN] are stored. In the detection storage force column, the sensor output of the sensor group 18 and the detection storage force for each volt are stored.

In this example, the axial forces F1, F2, F4, F5, F8 of the bolts 12-1, 12-2, 12-4, 12-5, 12-8 are within the allowable range, and the bolts 12-3, 12-6, 12-7), the axial force F3, F6, F7 is outside the allowable range. Therefore, in the individual evaluation, the axial forces F1, F2, F4, F5, and F8 within the allowable range pass, and the axial forces F3, F6, and F7 outside the allowable range fail. Therefore, comprehensive evaluation fails.

These are stored in the evaluation table 80 and displayed on the monitor 24 and notified to the operator. About the accumulation force of "failure", it may be made into the alert display, such as red or red blinking, and about the accumulation force of "pass", you may display that safe seals, such as green, are achieved.

In this way, it is possible to notify that the difference in the detected axial force relative to the target axial force impairs the reliability of the seal, so that proper seal construction can be promoted.

Example 6

20 shows a processing procedure for determining whether the fastening procedure according to the sixth embodiment has passed. This processing procedure has shown an example of the process implemented by the computer program executed by the PC 48, or a construction monitoring method.

In this processing procedure, the fastening between the flanges 6-1 and 6-2 is triggered (S701) to detect the fastening order (S702). This procedure may be detected or determined from, for example, the change in the detection axial force, the transition thereof, and the movement information of the tightening position. It is determined whether or not the detected order is consistent with a predetermined procedure which is a tightening criterion (S703). As a predetermined tightening criterion, the tightening procedure may be based on, for example, JIS or ASME.

If the detected procedure matches the predetermined tightening procedure (YES in S703), a pass indication is given to the monitor 24 (S704). What is necessary is just to display this pass display with the axial force distribution figure.

If the detected procedure does not match the predetermined tightening procedure (NO in S703), an error display is performed on the monitor 24 (S705). Similarly, this error display may be displayed together with the axial force distribution figure.

In this way, when the tightening order is determined by comparison with a predetermined tightening procedure, non-uniform tightening that occurs when the tightening is not performed in the order can be prevented, and the risk of leakage can be reduced. In addition, when the pass indication and the error indication are displayed together with the previously described axial force distribution figures, even if the detected axial force coincides with the target axial force, the operator can learn that the risk of leakage due to uneven tightening increases if the procedure is not proper.

Example 7

In the said embodiment, although the flange joint 6 of the seal construction part 4 is being fixed to a fixed position, the flange joint 6 may be changed freely to arbitrary positions, as shown to A of FIG. Similarly, you may change the position of the flange joint 6 to a horizontal direction, for example. If the position of the flange joint 6 can be changed arbitrarily, if it simulates a real working environment, even if a posture differs, training can be performed appropriately. In addition, it can be understood that the clamping force varies depending on the working environment and the posture of the operator, which lowers the seal performance.

In the said embodiment, although the seal construction part 4 is equipped with the single flange joint 6, as shown to B of FIG. 21, the 1st seal construction part 4-1 in the vertex part of the mount 32 is shown. ), The second seal construction portion 4-2 may be provided in the intermediate portion. In FIG. 21, the same code | symbol is attached | subjected to the same part as FIG. In the seal construction part 4-1, for example, the flange joint 6A which fastens with eight bolts is provided, and in the seal construction part 4-2, the diameter which fastens with 12 bolts is large, for example. The flange joint 6B is provided. When the flange joint is compounded in this manner, construction with different conditions can be performed at almost the same position.

[Other Embodiments]

(1) In the information generating unit 22, for example, the tightening procedure of each bolt may be determined from the increase or decrease of the axial force, and the result of the determination may be presented to the monitor 24. FIG. The tightening procedure is JIS or ASME. However, if the tightening procedure is not performed according to the procedure, uneven tightening may occur and the risk of leakage of liquid or gas is increased. Therefore, an error indication or alert indication may be displayed on the screen to notify the operator.

(2) In Example 2, 1st sensors 18-1, 18-2 ... 18-8 which detect axial force, 2nd sensors 28-1, 28-2, 28-3 which detect parallelism , 28-4), but may include only one of them, and may be configured to generate either one of a distribution graph showing detection axial force or a distribution graph showing parallelism.

(3) In the above embodiment, the first distribution figure and the second distribution figure are displayed on the same coordinates, but each distribution figure may be displayed on separate coordinates, and the area in each distribution figure is given different coloring, You may make it distinguishable by coloring.

(4) As described above, the most preferred embodiments and examples of the present invention have been described. The present invention is not limited to the above description. Various modifications and changes are possible to those skilled in the art based on the spirit of the invention described in the claims or disclosed in the forms or examples for carrying out the invention. It goes without saying that such modifications and changes are included in the scope of the present invention.

Industrial availability

According to the present invention, the construction monitoring of the sealing material can be carried out in real time, and the distribution figure indicating the axial force distribution and the parallelism of the flange seam can be displayed on the monitor so as to be able to contrast with the target axial force, and the construction can be confirmed by confirming the display contents. By evaluating the construction result, the construction skill can be improved.

2: construction monitoring device
4: seal construction department
4-1: First Seal Construction Department
4-2: 2nd seal construction part
6: flanged seam
6-1, 6-2: Flange
8: gasket
10-1, 10-2: Piping
12-1, 12-2 ... 12-8: Bolt
14: Nut
16: fastening tool
18: first sensor group
28: second sensor group
18-1, 18-2 ... 18-8: sensor
28-1, 28-2 ... 28-4: sensor
20: data integration unit
22: information generating unit
24: monitor
26-1: first distribution figure
26-2: second distribution figure
26-3: Third distribution figure
30: construction monitoring system
32: trestle
34: trestle
36: Floor
38: caster
40: cable
42: pedestal
44: shelf
46: data logger
48: PC
50: top plate
52: cable
54: practitioner
56: screen
58: bolt body
60: strain gauge
62: processor
64: memory
66: input / output unit (I / O)
68: communication unit
70: operation input unit
72: DB
74: axial force table
76: parallelism table
78: fastening mark
80: evaluation table

Claims (19)

As a construction monitoring device of a sealing material, which seals a sealing material by inserting it into a flange joint and tightening with a plurality of bolts,
Generate a plurality of coordinates extending radially from a center point, and indicate, on each coordinate, the target axial force of the bolt, or the detected axial force of the bolt, as a distance from the center point, between or between the target axial forces on the adjacent coordinates; A construction information monitoring device comprising a figure information generating means for connecting between the detected axial forces and generating a first distributed figure by the target axial force or a second distributed figure by the detection axial force on the coordinates; . The method of claim 1,
And the figure information generating means displays the first distributed figure and the second distributed figure overlaid on common coordinates. As a construction monitoring device of a sealing material, which seals a sealing material by inserting it into a flange joint and tightening with a plurality of bolts,
A plurality of first sensors for detecting the axial force of each bolt,
An information generator for generating distribution information of the target axial force based on target axial force and position information with respect to the axial force, and generating distribution information of the axial force based on the axial force and position information;
And a monitor for presenting a first distribution figure representing the target axial force on a coordinate and presenting a second distribution figure representing the axial force. The method of claim 3, wherein
Further comprising a second sensor for detecting parallelism between flanges of the flange seam, wherein the information generating unit generates parallelism information by a sensor output of the second sensor,
And said monitor presents a third distribution figure representing the parallelism between the flanges. The method of claim 3, wherein
In addition, the information generating unit, a target tightening force is set for each sealing material, the fastening force to the sealing material reaches the target fastening force with reference to the fastening torque calculated by the flange of the flange joint and the dimensional information of the bolt. To determine whether or not each bolt
The construction monitoring apparatus of the sealing material characterized by presenting a determination result to the said monitor. The method of claim 3, wherein
Furthermore, the construction monitoring apparatus of the sealing material characterized by enabling the working environment to be simulated by changing the position or angle of the seal construction part provided with the said flange joint, or changing the position or angle of the said flange joint. As construction monitoring program of seal material to let computer run,
Generate a plurality of coordinates extending radially from a center point, and indicate, on each coordinate, the target axial force of the bolt, or the detected axial force of the bolt, as a distance from the center point, between or between the target axial forces on the adjacent coordinates; The construction monitoring program of the sealing material for connecting the detection axial force so as to realize, by the computer, a function of generating a first distribution figure by the target axial force or a second distribution figure by the detection axial force on the coordinate. The method of claim 7, wherein
Furthermore, the construction monitoring program of the sealing material characterized by realizing the function which superimposes and displays the said 1st distribution figure and the said 2nd distribution figure on common coordinates. As construction monitoring program of seal material to let computer run,
Receiving sensor output from a plurality of first sensors for detecting the axial force of each bolt,
Generate distribution information of the target axial force based on target axial force and position information on the axial force, generate distribution information of the axial force based on the axial force and position information,
Presenting a first distribution figure representing the target axial force on a coordinate, and presenting a second distribution figure representing the axial force
Construction monitoring program of sealing material for realizing function with the said computer. The method of claim 9,
Additionally, receiving sensor output from a second sensor that detects parallelism between flanges of the flange seam,
Generating parallelism information by the sensor output,
Presenting a third distribution figure representing the parallelism between the flanges
Construction monitoring program of sealing material which realizes function with the said computer. The method of claim 9,
In addition, a target clamping force is set for each seal member, and it is determined for each bolt whether the clamping force for the seal member has reached the target clamping force,
To present the judgment result on the monitor.
Construction monitoring program of sealing material which realizes function with the said computer. The method of claim 9,
Furthermore, the construction monitoring program of the sealing material which determines the fastening procedure of each bolt, and implement | achieves the function which presents the determination result to the said monitor by the said computer. As a construction monitoring method of a sealing material which inserts a sealing material to a flange joint, and it seals by tightening with a some bolt,
The figure information generating means generates a plurality of coordinates extending radially from the center point, and displays the target axial force of the bolt or the detected axial force of the bolt as a distance from the center point on each coordinate, Constructing a sealing material comprising a step of connecting between target axis forces or between the detection axis forces to generate a first distribution figure by the target axis force or a second distribution figure by the detection axis force on the coordinates; Monitoring method. As a construction monitoring method of a sealing material which inserts a sealing material to a flange joint, and it seals by tightening with a some bolt,
Detecting the axial force of each bolt,
Generating distribution information of the target axial force based on target axial force and position information on the axial force, and generating distribution information of the axial force based on the axial force and position information;
And presenting a first distribution figure representing the target axial force on the coordinates, and presenting a second distribution figure representing the axial force. The method of claim 14,
In addition, the step of detecting the parallelism between the flanges of the flange joint,
Generating parallelism information by the parallelism;
And a step of presenting a third distribution figure indicating the parallelism between the flanges. As a construction monitoring system of a sealing material which inserts a sealing material to a flange joint, and fastens and seals with a some bolt,
A seal construction part including a first sensor for detecting the axial force of a plurality of bolts to which the seal member is fastened to the flange joint, or a second sensor for detecting the parallelism between the flanges of the flange joint;
Generate a plurality of coordinates extending radially from a center point, and indicate, on each coordinate, the target axial force of the bolt, or the detected axial force of the bolt, as a distance from the center point, between or between the target axial forces on the adjacent coordinates; A construction information monitoring system of the sealing material, comprising: figure information generating means for connecting between the detected axial forces and generating a first distributed figure by the target axial force or a second distributed figure by the detection axial force on the coordinate; . As a construction monitoring system of a sealing material which inserts a sealing material to a flange joint, and fastens and seals with a some bolt,
A seal construction part including a first sensor for detecting the axial force of a plurality of bolts to which the seal member is fastened to the flange joint, or a second sensor for detecting the parallelism between the flanges of the flange joint;
A wired or wireless connection with the first sensor or the second sensor, generating distribution information of the target axis force by target axis force and position information on the axis force, and distribution information of the axis force by the axis force and position information Or an information generating unit for generating parallelism information by the parallelism,
Connected to the information generating unit by wire or wirelessly, presenting a first distributed figure representing the target axial force on a coordinate, presenting a second distributed figure representing the axial force, or a third distributed figure representing the parallelism. The construction monitoring system of the sealing material characterized by including a monitor to present. As a construction training system for a sealing material, in which a sealing material is inserted into a flange joint, and the seal is tightened with a plurality of bolts,
A seal construction part including a first sensor for detecting the axial force of a plurality of bolts to which the seal member is fastened to the flange joint, or a second sensor for detecting the parallelism between the flanges of the flange joint;
Generate a plurality of coordinates extending radially from a center point, and indicate, on each coordinate, the target axial force of the bolt, or the detected axial force of the bolt, as a distance from the center point, between or between the target axial forces on the adjacent coordinates; A construction training system of a sealing material, comprising: figure information generating means for connecting between the detected axial forces and generating a first distributed figure by the target axial force or a second distributed figure by the detected axial force on the coordinate; . As a construction training system for a sealing material, in which a sealing material is inserted into a flange joint, and the seal is tightened with a plurality of bolts,
A seal construction part including a first sensor for detecting the axial force of a plurality of bolts to which the seal member is fastened to the flange joint, or a second sensor for detecting the parallelism between the flanges of the flange joint;
A wired or wireless connection with the first sensor or the second sensor, generating distribution information of the target axis force by target axis force and position information on the axis force, and distribution information of the axis force by the axis force and position information Or an information generating unit for generating parallelism information by the parallelism,
Connected to the information generating unit by wire or wirelessly, presenting a first distributed figure representing the target axial force on a coordinate, presenting a second distributed figure representing the axial force, or a third distributed figure representing the parallelism. The construction training system of the sealing material characterized by including a monitor to present.

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