JP2006289227A - Magnetic treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a magnetic treatment apparatus which can satisfactorily exert magnetic action onto fluid such as water flowing in a conduit. <P>SOLUTION: The magnetic treatment apparatus is equipped with a conduit 2 in which the fluid to be treated is made to flow and a magnetic field generating means 11 for generating a magnetic field acting on the fluid to be treated in the conduit. The conduit 2 is spirally wound to form a cylindrical coil section 2C and the magnetic field generating means 11 is freely rotatably provided inside the coil section. The magnetic field generating means 11 is constituted of a plurality of permanent magnets 12A and magnet holders 13 for fixing respective permanent magnets 12A. The magnet holder 13 has a core section 13A arranged at a central part of the coil section 2C and the permanent magnet 12A is provided around the core section. The magnetic field generating means 11 is rotated by an adjustable-speed motor 5 and its rotation direction is reverse to a whirling direction of the fluid to be treated in the coil section 2C. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a magnetic processing apparatus that mainly treats a liquid such as water or oil, and more particularly to a magnetic processing apparatus that can efficiently perform magnetic processing on a processing fluid such as water.

  Conventionally, water is passed through a magnetic field created by permanent magnets for the purpose of preventing scale adhesion in water pipes, corrosion of water pipes and generation of red water due to this, and generation of algae in rivers and lakes. An apparatus for modifying water by the action of a magnetic field has been proposed.

  As such an apparatus, an apparatus in which a plurality of permanent magnets arranged opposite to each other with a water passage pipe interposed therebetween is known (for example, Patent Document 1).

  A detachable water treatment apparatus is provided in which a yoke is mounted in a pair of housings sandwiching a water supply pipe, a permanent magnet is mounted inside the yoke, and the permanent magnets face different magnetic poles across the water supply pipe. Known (for example, Patent Document 2).

  Furthermore, an apparatus is known in which a plurality of permanent magnets are arranged on the outer periphery of a conduit and fixed by a steel band (for example, Patent Document 3).

JP-A-4-122543

Japanese Patent Laid-Open No. 11-169861 Utility Model Registration No. 3074925

  However, since all of Patent Documents 1 to 3 have a structure in which a permanent magnet is provided on the outer periphery of a tube having a circular cross section, and the permanent magnet is opposed to the tube, the water flowing in the tube is a permanent magnet. The exposure time to the magnetic field due to the magnetic field is extremely short, so that the magnetic field cannot be efficiently applied to the flowing water in the pipe, and there is a disadvantage that the water is not well modified by the action of the magnetic field.

  If a permanent magnet is installed over the entire length of the tube and the magnetic field generation section is lengthened, the time during which water is exposed to the magnetic field can be lengthened, but this requires many permanent magnets. There is a problem of high costs.

  In general, water pipes and the like are made of metal, which is also made of a magnetic material mainly composed of iron. In this case, since the pipe acts as a magnetic shield, a magnetic field generated by a permanent magnet is generated in the pipe. It cannot act well on water.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an apparatus capable of satisfactorily exerting a magnetic action on water and other fluids flowing in a pipe.

  In order to achieve the above object, the present invention provides a magnetic processing apparatus comprising: a pipe through which a processing fluid flows; and a magnetic field generating means for generating a magnetic field that acts on the processing fluid in the pipe. Has a cylindrical coil part formed by spirally winding the coil part, and the magnetic field generating means is provided on the inner side from one end part to the other end part of the coil part.

  In the magnetic processing apparatus as described above, the magnetic field generating means is composed of a plurality of permanent magnets and a magnet holder for fixing each permanent magnet, and the magnet holder is arranged at the central portion of the coil portion. Each permanent magnet is provided around the core portion.

  Further, the magnetic field generating means is provided for rotating the magnetic field generating means, and the rotating direction of the magnetic field generating means by the magnetic field rotating means is opposite to the turning direction of the processing fluid in the coil section. . The coil portion is made of a non-conductive material.

  In addition, a flow rate sensor for detecting the flow rate of the processing fluid flowing in the pipe line and a control unit for controlling the rotation operation of the magnetic field generation unit based on the output signal of the flow rate sensor are provided. .

  And a magnetism sensor for detecting the magnetization degree of the processing fluid that has passed through the coil section, and a control means for controlling the rotation operation of the magnetic field generating means based on an output signal of the magnetism sensor. And

  According to the magnetic processing apparatus of the present invention, the pipe line through which the processing fluid flows is spirally wound to form the cylindrical coil portion, and the magnetic field generating means is provided on the inside thereof. The time during which the processing fluid is exposed to the magnetic field generated by the means becomes longer, and therefore the processing fluid can be satisfactorily modified.

  The magnetic field generating means is composed of a plurality of permanent magnets and a magnet holder for fixing each permanent magnet, and the magnet holder has a core portion arranged at the central portion of the coil portion. Since the permanent magnet is provided around the part, even a small magnet can be applied to the processing fluid in the pipe line forming the coil part in proximity to the inner peripheral surface of the coil part.

  In particular, since the magnetic field generating means is rotated by the magnetic field rotating means, a rotating magnetic field (rotating magnetic field) is generated on the inner side (inner peripheral part) of the coil part, and this is converted into a spiral flow ( The rotating direction of the magnetic field generating means by the magnetic field rotating means is opposite to the rotating direction of the processing fluid in the coil section. It becomes possible to make a magnetic field act on a fluid more efficiently.

  Further, since the coil portion is made of a non-conductive material, the magnetic field generated by the magnetic field generating means acts on the processing fluid without being shielded, and no eddy current is generated in the coil portion due to the rotation of the magnetic field generating means. Can be prevented.

  Further, since the flow sensor includes a flow sensor for detecting the flow rate of the processing fluid flowing in the pipe line and a control unit that controls the rotation operation of the magnetic field generation unit based on the output signal of the flow sensor, the flow of the processing fluid is provided. The magnetic field generating means is stopped when the motor is stopped to reduce the running cost, or by increasing the rotation speed of the magnetic field generating means in proportion to the flow rate of the processing fluid, the processing fluid that passes through the coil portion is uniform. Magnetic treatment can be performed.

  In addition, since the magnetism degree sensor for detecting the magnetization degree of the processing fluid that has passed through the coil section and the control means for controlling the rotation operation of the magnetic field generation means based on the output signal of the magnetism degree sensor, the coil It is possible to perform uniform magnetic processing on the processing fluid by performing feedback control that increases the rotation speed of the magnetic field generating means in proportion to the degree of magnetization of the processing fluid that has passed through the section.

  Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view showing a magnetic processing apparatus according to the present invention, and FIG. 2 is a schematic front view showing the internal structure of the apparatus. In FIG. 1 and FIG. 2, reference numeral 1 denotes a portable frame provided with a caster at the bottom, and a pipe 2 (conduit) through which a processing fluid flows is disposed in the frame 1.

  The pipe line 2 is a synthetic resin pipe made of non-conductive vinyl chloride or the like, and both ends thereof are fixed to the frame 1 as an inflow port 2A and an outflow port 2B. A supply pipe (not shown) for supplying a processing fluid is connected to the one end inlet 2A of the pipe, and a discharge pipe (not shown) is connected to the other end outlet 2B of the pipe. The treated fluid can be guided to a required location.

  Further, the pipe line 2 forms a cylindrical coil portion 2C formed by spirally winding the inlet 2A and the outlet 2B. It should be noted that the pipe line 2 may be a non-conductive material only in the part forming the coil part 2C, or the entire pipe line 2 may be spirally wound as the coil part 2C. On the other hand, a magnetic field generating means, which will be described later, is provided inside the coil part 2C, and the magnetic field generated thereby acts on the processing fluid in the pipe line forming the coil part 2C. In particular, in this example, a magnetic field generating means is rotatably provided from one end portion to the other end portion inside the coil portion 2C, and a rotating magnetic field is formed inside the coil portion 2C by the rotation. .

  In FIG. 2, reference numeral 3 denotes a rotating shaft that forms the rotation center of the magnetic field generating means, and the rotating shaft 3 is supported at both ends by a bearing unit 4 attached to the frame 1. And according to this example, one end of the rotating shaft 4 is connected to the drive shaft of the variable speed motor 5 attached to the frame 1 to constitute the magnetic field rotating means for rotating the magnetic field generating means.

  6 is a flow sensor attached to the pipe 2 in the vicinity of the inlet 2A to detect the flow rate of the processing fluid flowing in the pipe 2, and 7 is a flow sensor to detect the degree of magnetization of the processing fluid that has passed through the coil portion 2C. It is a magnetism sensor attached to the pipe line 2 in the vicinity of the outlet 2B. An electromagnetic flow meter, a Karman vortex flow meter, or the like is used as the flow sensor 6, and a Hall element or Hall IC that generates a voltage according to the strength of magnetism, or an oxidation-reduction potentiometer (ORP sensor) is used as the magnetization degree sensor 7. Etc. are used.

  Here, when the degree of magnetization of the processing fluid changes, the oxidation-reduction potential also changes accordingly. Therefore, the degree of magnetization can be expressed quantitatively from the magnitude of the oxidation-reduction potential of the processing fluid.

  In FIG. 1, reference numeral 8 denotes a main power switch of the apparatus, and 9 denotes a display unit including a liquid crystal panel. The display unit 9 includes a flow rate of the processing fluid detected by the flow rate sensor 6 and a magnetization degree sensor 7. The operating state of the apparatus such as the detected degree of magnetization of the processing fluid and the rotational speed of the variable speed motor 5 is displayed.

  In FIG. 2, reference numeral 10 denotes control means (controller) for controlling the rotation operation of the magnetic field generating means based on the output signals of the flow rate sensor and the magnetization degree sensor. In particular, in this example, when the output signal of the flow sensor 6 is “0” or less than the set value, a stop signal is transmitted from the control means 11 to the variable speed motor 5 to stop the magnetic field generating means, and the output of the flow sensor 6 When the signal is greater than “0” or greater than the set value, on / off control is performed such that a drive signal is transmitted from the control means 11 to the variable speed motor 5 to drive the magnetic field generating means to rotate within a predetermined rotational speed range. Composed.

  Further, the control means 10 performs control to increase or decrease the rotational speed of the variable speed motor 5 according to the magnitude of the output signal of the magnetization degree sensor 7, thereby changing the rotational speed of the magnetic field generating means. Note that the magnetism sensor 7 may be omitted, and the variable speed motor 5 may be increased or decreased depending on the magnitude of the output signal (flow rate of the processing fluid) from the flow sensor 6.

  Next, the structure of the magnetic field generating means will be described. 3 and 4, reference numeral 11 denotes the above-described magnetic field generating means, which is composed of a plurality of permanent magnets 12A and 12B and a magnet holder 13 that fixes the permanent magnets 12A and 12B. The magnet holder 13 includes a core portion 13A disposed in the central portion of the coil portion 2C and a magnetic plate 13B disposed between the permanent magnets 12A and 12B. The permanent magnets 12A and 12B are arranged around the core portion 13A. It is to be provided in.

  The core portion 13A is a yoke having a columnar shape with a regular octagonal cross section and having an overall length set to be substantially equal to the entire length of the coil portion 2C, and a rotating shaft 14 is fixed to the central portion in a penetrating state. And according to this example, as shown in FIG. 3, an even number (eight in this example) of permanent magnets 12A having a rectangular cross section are adsorbed on the outer peripheral surface of the core portion 13A, and between these permanent magnets 12A. The permanent magnet 12B having a triangular cross-section is inserted into each via a magnetic plate 13B.

  As the permanent magnets 12A and 12B, ferrite magnets and metal magnets can be used. However, metal magnets and neodymium magnets are preferably used from the viewpoint of magnetic force. Among these, the rectangular permanent magnet 12A is arranged in such a manner that one magnetic pole is attracted to the outer peripheral surface of the core portion 13A and the other magnetic pole faces the inner peripheral surface of the coil portion 2C, and is adjacent in the circumferential direction. The magnetic poles between the objects are opposite to each other. That is, the rectangular permanent magnets 12A are arranged in a state in which the directions of the N poles and the S poles adjacent to each other with the triangular permanent magnets 12B interposed therebetween are opposite to each other so that the N poles and the S poles appear alternately in the circumferential direction. .

  The permanent magnet 12A may be in the form of a rod extending in the length direction of the core portion 13A, but is preferably a short permanent magnet 12A as shown in FIG. 4 and extending them in the length direction of the core portion 13A. It is preferable that the magnetic poles are arranged in series along the same direction, and the magnetic poles are opposite to each other in the arrangement direction.

  On the other hand, the triangular permanent magnet 12B has both surfaces sandwiched between the magnetic plates 13B as magnetic poles, and serves as a wedge that increases the fixing force of the permanent magnet 12A to the core portion 13A. The triangular permanent magnet 12B is not always necessary, and the triangular permanent magnet 12B can be omitted by using the rectangular permanent magnet 12A that is strongly attracted to the core portion 13A.

  Here, according to the magnetic field generating means 11 as described above, a magnetic field represented by convex magnetic field lines radially extending from the inside of the coil portion 2C toward the outside as shown in FIG. This can be favorably applied to the processing fluid in the pipe line 2 forming the coil portion 2C. Further, the rotation of the magnetic field generating means 11 generates a rotating magnetic field that acts alternately on the processing fluid in the pipe line 2 forming the coil portion 2C, so that the processing fluid can be more effectively exposed to the magnetic field lines. It becomes like this.

  In particular, the rotation direction of the magnetic field generating means 11 and the swirl direction of the processing fluid flowing along the spiral pipe line 2 in the coil portion 2C are opposite to each other. That is, in FIG. 3, when the swirling direction of the processing fluid is clockwise (clockwise), the rotation direction of the magnetic field generating unit 11 is counterclockwise (counterclockwise) when viewed from the same direction. According to this, the number of times that the processing fluid interlinks with the magnetic field increases, and the magnetic processing on the processing fluid is more effectively performed.

  Incidentally, even if a rotating magnetic field is generated inside the coil portion 2C, heating due to eddy current can be prevented because the coil portion 2C is a non-conductor. In FIGS. 3 and 4, reference numeral 15 denotes a cylindrical winding cylinder around which the pipe line 2 is wound to form the coil portion 2C, and flanges 15A are formed at both ends thereof, and the flanges 15A are the side plates of the frame. By being fastened to 1A (see FIG. 1), the coil portion 2C is fixed in place. Although the winding drum 15 is also a non-conductive material made of synthetic resin or the like to prevent eddy current heating, the winding drum 15 can be omitted by using a hard tube whose shape can be fixed to the coil portion 2C.

  Further, as is apparent from FIG. 3, the coil portion 2C and the winding drum 15 are formed in a cylindrical shape, but may be a rectangular tube shape. In short, the coil portion 2C only needs to have an inner diameter that can accommodate the magnetic field generating means 11 inside thereof. However, in order to increase the length of the pipe line 2 forming the coil portion 2C, it is preferable that the pipe line 2 is tightly wound without a gap as shown in FIG.

  Next, a configuration example of the control unit will be described. As shown in FIG. 6, the control means 10 includes a central processing unit 16, a storage device 17, an input device 18, an interface unit 19, and the like. The interface unit 19 includes a display unit 9, a flow rate sensor 6, and a magnetization. A degree sensor 7 and a motor driver 20 are connected, and a variable speed motor 5 constituting magnetic field rotating means is connected to the motor driver 20.

  The central processing unit 16 (CPU) controls the entire apparatus by executing a control program, and programs and data necessary for this are stored in the storage device 17.

  The storage device 17 includes a ROM that stores a control program and the like, and a RAM that stores data such as the flow rate and the degree of magnetization of the processing fluid detected by the flow rate sensor and the magnetization degree sensor. The fluid magnetization degree (target magnetization degree) and the like can be set and input from the input device 18.

  The central processing unit 16 executes predetermined calculation and determination processing from the flow rate data (measured flow rate), the magnetization degree data (measured magnetization degree), and the target magnetization degree stored in the storage device 17, and based on the results. A control signal is transmitted to the motor driver 20 via the interface unit 19, thereby stopping, driving, and shifting the variable speed motor 5.

  Next, FIG. 7 shows a flowchart relating to the magnetization process of the processing fluid. As is apparent from FIG. 7, when using this apparatus, first, the main power switch is turned on, and the setting of the target magnetization J0 is input to the control means. The setting input is performed as necessary, and is omitted when the target magnetization degree J0 is not changed.

  Here, the control means acquires the output signal of the flow sensor as the measured flow rate Q of the processing fluid, and acquires the output signal of the magnetization degree sensor as the measured magnetization degree J1 of the processing fluid.

  When the processing fluid is caused to flow through the pipe and Q> 0, a driving current is supplied from the control means to the variable speed motor, thereby rotating the magnetic field generating means at a predetermined rotational speed. In addition, when this apparatus is interposed in an existing water pipe, if the faucet is twisted, tap water as a processing fluid flows in the pipe line and Q> 0, and the reservoir water is introduced into the pipe line by a pump. In this case, Q> 0 when the pump is started. However, even when the flow of the processing fluid does not occur in the pipe line, a weak signal may be output from the flow rate sensor and the variable speed motor may be driven. For example, the conditional expression is “Q> 1”, or a signal below a certain level output from the flow sensor is cut.

  Next, in a state where the processing fluid is flowing in the pipe line, the control means compares the target magnetization J0 with the measured magnetization J1, and when J0> J1, the variable speed motor is increased while J0 is increased. <When J1, the variable speed motor is decelerated, thereby rotating the magnetic field generating means at a speed corresponding to the magnitude of the actually measured degree of magnetization J1. Note that the comparison between the target magnetization J0 and the measured magnetization J1 is performed at predetermined time intervals, and the acceleration / deceleration of the variable speed motor is performed stepwise in accordance with the magnitude of the difference between J0 and J1. When the motor reaches the rated rotational speed, the state is maintained until J0 <J1.

  Next, a modified example of the magnetic field generating means will be described with reference to FIG. Parts that are the same as those in the above example are given the same reference numerals, and detailed description thereof is omitted. As is apparent from FIG. 8, in this example, the core portion 23A is a columnar body having a rectangular cross section. The core portion 23A is also a yoke disposed in the central portion of the coil portion 2C, and the rotary shaft 14 is fixed in a penetrating manner at the center. And the four holders 23B are provided in the outer peripheral surface of the core part 23A, and the magnet holder 23 is comprised. Each of the ridges 23B is a wing-like magnetic body integrated with the core portion 23A, and protrudes radially from the core portion 23A.

  On the other hand, an even number (eight in this example) of permanent magnets 12 are provided around the core portion 23A, and each of the permanent magnets 12 is attracted to both surfaces of the ridge 23B as a set. In particular, the permanent magnets 12 of each set are opposed to each other with the same pole across the ridge 23B, and the exposed magnetic poles are different between neighboring sets (two sets orthogonal to each other in this example). That is, when a pair of permanent magnets 12 and 12 are attracted to the ridges with the N poles facing each other, the pair of permanent magnets 12 and 12 in the vicinity thereof faces the ridges 23B with the S poles facing each other. Adsorbed. Also in this example, the permanent magnets 12 having a short length are arranged in series along the length direction of the core portion 23A, and the magnetic poles are opposite to each other in the arrangement direction. It is good to do.

  And also in the magnetic field generating means 21 according to the present example, as shown in FIG. 9, a magnetic field represented by convex magnetic field lines radially spreading from the inside of the coil portion 2C toward the outside thereof is generated. The processing fluid in the pipe line 2 forming the coil part 2C can be satisfactorily acted on. Further, the rotation of the magnetic field generating means 21 generates a rotating magnetic field that acts alternately on the processing fluid in the pipe line 2 that forms the coil portion 2C, so that the processing fluid can be more effectively exposed to the lines of magnetic force. It becomes like this.

  Although the present invention has been described above, such an apparatus can perform not only water and other liquids but also air and other gases as a magnetizing treatment. Further, the structure in which the magnetic field generating means 11 and 21 are rotated is the best, but this may be configured to be housed in a fixed state inside the coil portion 2C. Furthermore, a three-phase winding electromagnet that generates a rotating magnetic field may be used as the magnetic field generating means, or an electromagnet that does not electrically generate a rotating magnetic field may be rotated. Even if a permanent magnet is used, it is not limited to the structure as in the above example. For example, a ring-shaped permanent magnet magnetized in the circumferential direction is fixed in a cylindrical shape on the outer periphery of a cylindrical core portion. You may do it.

Side view of magnetic processing apparatus according to the present invention Schematic front view showing the internal structure of the device Side view showing the inside of the coil XX sectional view of FIG. Explanatory drawing which shows the generation | occurrence | production state of the magnetic field by a magnetic field generation means Block diagram showing a configuration example of the control means Flow chart showing control example by control means The figure which shows the example of a change of a magnetic field generation means Explanatory drawing which shows the generation | occurrence | production state of the magnetic field by the magnetic field generation means of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus frame 2 Pipe line 2C Coil part 5 Variable speed motor 6 Flow rate sensor 7 Magnetization degree sensor 10 Control means 11,21 Magnetic field generation means 12,12A, 12B Permanent magnet 13,23 Magnet holder 13A, 23A Core part 14 Rotating shaft

Claims (7)

  A magnetic processing apparatus comprising: a pipe through which a processing fluid flows; and a magnetic field generating means for generating a magnetic field that acts on the processing fluid in the pipe, wherein the pipe is formed by winding the pipe in a spiral shape. A magnetic processing apparatus, wherein the magnetic field generating means is provided on an inner side from one end portion to the other end portion of the coil portion.   The magnetic field generating means is composed of a plurality of permanent magnets and a magnet holder for fixing each permanent magnet, and the magnet holder has a core portion arranged at the central portion of the coil portion, and each permanent magnet is The magnetic processing apparatus according to claim 1, wherein the magnetic processing apparatus is provided around the core portion.   The magnetic processing apparatus according to claim 1, further comprising a magnetic field rotating unit that rotates the magnetic field generating unit.   4. The magnetic processing apparatus according to claim 3, wherein the rotating direction of the magnetic field generating means by the magnetic field rotating means is opposite to the turning direction of the processing fluid in the coil section.   5. The magnetic processing apparatus according to claim 3, wherein the coil portion is made of a non-conductor.   The flow rate sensor for detecting the flow volume of the processing fluid which flows in the inside of a pipe line, and the control means which performs rotation operation control of a magnetic field generation means based on the output signal of this flow rate sensor, The claim 3 or 4 provided Magnetic processing equipment. The magnetism degree sensor for detecting the magnetization degree of the processing fluid which passed the coil part, and the control means which performs rotation operation control of a magnetic field generation means based on the output signal of this magnetization degree sensor, or 4. The magnetic processing apparatus according to 4.

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