CN114608740A - Oil field has oil pressure seat that has manometer protect function - Google Patents
Oil field has oil pressure seat that has manometer protect function Download PDFInfo
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- CN114608740A CN114608740A CN202210227600.6A CN202210227600A CN114608740A CN 114608740 A CN114608740 A CN 114608740A CN 202210227600 A CN202210227600 A CN 202210227600A CN 114608740 A CN114608740 A CN 114608740A
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- 230000007246 mechanism Effects 0.000 claims abstract description 63
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 43
- 238000007789 sealing Methods 0.000 claims description 106
- 239000007788 liquid Substances 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 239000013013 elastic material Substances 0.000 claims description 9
- 230000002146 bilateral effect Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 210000003127 knee Anatomy 0.000 claims 3
- 239000003208 petroleum Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 13
- 238000005259 measurement Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 206
- 239000007787 solid Substances 0.000 description 10
- 239000010779 crude oil Substances 0.000 description 5
- 206010066054 Dysmorphism Diseases 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0609—Pressure pulsation damping arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to the field of oilfield pipeline measurement, in particular to an oil pressure seat with a pressure gauge protection function for an oilfield. The vibration of the oil pressure gauge damages the electrical components in the oil pressure gauge, and when the oil pressure gauge is replaced, the residual pressure is stored in the oil pressure seat. An oil pressure seat with a pressure gauge protection function for an oil field comprises a lower sleeve, an elastic sleeve, a pressure stabilizing assembly, a pressure reducing mechanism, a pressure releasing mechanism and the like; the lower sleeve is fixedly connected to a petroleum pipeline through a flange, the upper portion of the lower sleeve is provided with an elastic sleeve in a sliding mode, a pressure stabilizing assembly and a pressure reducing mechanism are arranged inside the lower sleeve, the pressure reducing mechanism is located on the upper portion of the lower sleeve, and the pressure releasing mechanism is located on the right portion of the lower sleeve. The invention realizes the protection of electrical elements in the oil pressure gauge through the elastic sleeve, reduces the pressure in the oil pressure seat while plugging the oil pressure seat when the oil pressure of an oil pipe fluctuates through the matching of the pressure stabilizing assembly and the pressure reducing mechanism, and realizes the effect of eliminating the residual pressure in the oil pressure seat through the pressure releasing mechanism.
Description
Technical Field
The invention relates to the field of oilfield pipeline measurement, in particular to an oil pressure seat with a pressure gauge protection function for an oilfield.
Background
Petroleum is widely used as fuel for airplanes, tanks, rockets and other spacecrafts as an important energy source, and is generally transported through a petroleum pipeline in the petroleum exploitation process, and an oil pressure gauge is required to be installed to detect the oil pressure in the petroleum pipeline and is fixed on the petroleum pipeline through an oil pressure seat in the petroleum transportation process.
The existing oil pressure seat does not have a shockproof function, in the pressure measuring process of the oil pressure gauge, the oil pipeline can vibrate due to oil pressure fluctuation of the oil pipeline, the oil pipeline can drive the oil pressure gauge to vibrate, an electrical element in the oil pressure gauge is a sensitive element, the vibration can influence the measurement of the electrical element in the oil pressure gauge on the oil pressure, thereby causing errors in the measured data of the oil pressure gauge, and the oil pressure seat does not have the function of pressure stabilization at present, the oil pressure fluctuation can rapidly increase the oil pressure in the oil pressure seat, damage to the oil pressure gauge, abnormal oil pressure data measured by the oil pressure gauge, reduced service life of the oil pressure gauge, when the oil pressure gauge is replaced, residual pressure exists in the oil pressure seat, and if the residual pressure cannot be eliminated, the oil pressure gauge is difficult to disassemble, after the oil pressure gauge is installed, no further sealing is performed between the oil pressure gauge and the oil pressure seat, so that the sealing effect between the oil pressure gauge and the oil pressure seat is poor.
In order to solve the technical problem, an oil pressure seat with a pressure gauge protection function is provided for an oil field.
Disclosure of Invention
In order to overcome the defects that after oil pressure fluctuation occurs in an oil pipeline, an oil pressure gauge vibrates to damage electrical elements in the oil pressure gauge, when the oil pressure gauge is replaced, residual pressure exists in an oil pressure seat, after the oil pressure gauge is installed, no further sealing is performed between the oil pressure gauge and the oil pressure seat, the sealing effect is poor, and the oil pressure seat lacks a pressure stabilizing function, the technical problem of the invention is that: provides an oil pressure seat with a pressure gauge protection function for an oil field.
The technical implementation scheme of the invention is as follows: an oil pressure seat with a pressure gauge protection function for an oil field comprises a lower sleeve, an elastic sleeve, an upper sleeve, a support rod, a connecting block, a lantern ring, an oil pressure gauge, a pressure stabilizing assembly, a pressure reducing mechanism, a pressure relief mechanism and a sealing assembly, wherein the lower sleeve is fixedly connected to an oil pipeline through a flange, a circular table groove is formed in the lower portion of the inner surface of the lower sleeve, a through hole is formed in the right side of the middle of the lower sleeve, a first cavity is formed in the upper portion of the lower sleeve, a second cavity communicated with the first cavity is formed in the upper portion of the lower sleeve, the second cavity is located above the first cavity, two air vents which are bilaterally symmetrical are formed between the upper surface of the lower sleeve and the second cavity, four third cavities communicated with the first cavity are uniformly formed in the circumferential direction of the upper portion of the lower sleeve, the four third cavities are respectively located on the outer side of the first cavity, four air vents are uniformly formed in the circumferential direction of the right side of the lower sleeve, and are respectively communicated with adjacent third cavities, the upper part of the lower sleeve is provided with an elastic sleeve, the lower end of the elastic sleeve is in sliding fit with the second cavity, the upper part of the elastic sleeve is fixedly connected with an upper sleeve, the upper part of the upper sleeve is provided with a hydraulic cavity, the four supporting rods are uniformly arranged along the circumferential direction of the lower sleeve, the lower ends of the four supporting rods are fixed on the ground, the upper parts of the four supporting rods are all in threaded arrangement, the four connecting blocks are uniformly arranged along the circumferential direction of the upper sleeve and are respectively and rotatably connected with the adjacent supporting rods, the four connecting blocks are respectively and fixedly connected with the upper parts of the adjacent supporting rods through nuts, the inner ends of the four connecting blocks are fixedly connected with lantern rings, the lantern rings support the upper sleeve, the upper surface of the upper sleeve is fixedly connected with an oil pressure meter through flanges, a pressure stabilizing component is arranged in the lower sleeve and is fixedly connected with the upper part of the inner surface of the lower sleeve, the pressure stabilizing component is used for stabilizing the oil pressure change in an oil pressure seat after oil pressure fluctuation occurs in an oil pipeline, and a pressure reducing mechanism is arranged in the lower sleeve, the pressure reducing mechanism is fixedly connected with the upper portion of the inner surface of the lower sleeve, the pressure reducing mechanism is located below the pressure stabilizing assembly, the pressure reducing mechanism is used for reducing the pressure in the oil pressure seat after the oil pressure fluctuation occurs in the petroleum pipeline, the pressure reducing mechanism is arranged at the right portion of the oil pressure seat, the pressure reducing mechanism penetrates through the right portion of the lower sleeve, the pressure reducing mechanism is used for reducing the residual pressure in the oil pressure seat when the oil pressure meter is replaced, the sealing assembly is arranged on the upper portion of the upper sleeve, and the sealing assembly is used for sealing between the oil pressure meter and the upper sleeve.
More preferably, the elastic sleeve is made of elastic corrosion-resistant rubber, the upper portion of the elastic sleeve is arranged in a folded mode, the lower portion of the elastic sleeve is arranged in a corrugated pipe mode, and the elastic sleeve is used for eliminating vibration of the petroleum pipeline to the upper sleeve and the oil pressure gauge.
More preferably, the voltage stabilizing component is including first solid fixed ring, the connecting plate, solid fixed ring of second and dysmorphism board, first solid fixed ring rigid coupling is on lower casing internal surface upper portion, the connecting plate bilateral symmetry is provided with two, the outer end of two connecting plates respectively with the inboard rigid coupling in first solid fixed ring lower part, the inner rigid coupling of two connecting plates has solid fixed ring of second, solid fixed ring of second is the same with solid fixed ring thickness of first, solid fixed ring upper surface rigid coupling of second has the dysmorphism board, the dysmorphism board is elastic material, the passageway that forms between first solid fixed ring and the solid fixed ring of second is the oil feed passageway, the oil feed passageway is wide from top to bottom narrow, oil feed passageway top exit aligns with the dysmorphism board middle part.
More preferably, the lower surface of the shaped plate is recessed upward, the upper surface is raised upward, and the thickness of the shaped plate gradually decreases from the middle to the outside.
More preferably, the pressure reducing mechanism comprises two circular tubes, a communicating tube, a piston tube, a pressure reducing shell, an oil passing ring, a limiting ring and a bent rod, wherein the two circular tubes are arranged in bilateral symmetry, the outer side parts of the two circular tubes are respectively fixedly connected with the upper part of the inner surface of a lower sleeve, the inner side parts of the two circular tubes are fixedly connected with the communicating tube, a sliding chute is arranged in the communicating tube, the two circular tubes penetrate through the lower sleeve to communicate the inside of the communicating tube with a first cavity, the piston tube is positioned at the lower part of the communicating tube, the piston tube is in sliding fit with a second fixing ring and a special-shaped plate, the lower end of the piston tube is fixedly connected with the pressure reducing shell, the middle part of the pressure reducing shell is fixedly connected with the oil passing ring, the upper part of the oil passing ring is provided with a plurality of oil passing holes, the middle part of the inner surface of the lower sleeve is fixedly connected with the limiting ring, the limiting ring is in sliding fit with the oil passing ring, the four bent rods are uniformly arranged along the circumferential direction of the elastic sleeve, the inner ends of the four bent rods are respectively and fixedly connected with the lower part of the outer surface of the elastic sleeve, the lower parts of the four bent rods are respectively in sliding fit with the adjacent third cavities.
More preferably, the step-down housing is a cavity, the lower surface of the step-down housing is a downward convex, the lower surface of the step-down housing is made of an elastic material, and the cavity of the step-down housing is communicated with the communicating pipe through a piston pipe.
More preferably, the pressure relief mechanism comprises fixed blocks, fixed columns, sliding blocks, a first sleeve, a spring, a piston disc, a first rotating shaft, a second sleeve, a first gear, a second rotating shaft, supporting blocks, supporting plates, a third rotating shaft and a rotating disc, wherein the lower sleeve is internally and uniformly provided with three fixed blocks along the circumferential direction, the outer ends of the three fixed blocks are respectively and fixedly connected with the lower part of the inner surface of the lower sleeve, the lower sleeve is internally and uniformly provided with three fixed columns along the circumferential direction, the upper ends of the three fixed columns are respectively and fixedly connected with the middle parts of the lower surfaces of the adjacent fixed blocks, the outer parts of the three sliding blocks are respectively and slidably matched with the lower parts of the adjacent fixed columns, the inner ends of the three sliding blocks are fixedly connected with the first sleeve, the inner surface of the first sleeve is in a threaded arrangement, the lower surface of the first sleeve is fixedly connected with the spring, the lower end of the spring is fixedly connected with the piston disc, and the piston disc is in a truncated cone shape, the piston disc is in extrusion press fit with the circular table groove, the circular groove of the piston disc is in sliding fit with the first sleeve, the upper surface of the piston disc is provided with the circular groove, the spring is positioned in the circular groove of the piston disc, the lower end of the spring is fixedly connected with the lower surface of the circular groove of the piston disc, the first sleeve is connected with the first rotating shaft in a rotating mode, the outer surface of the first rotating shaft is provided with threads matched with the threads in the first sleeve, the inner ends of the three fixed blocks are fixedly connected with a second sleeve, the second sleeve is positioned above the first sleeve and is rotatably connected with the upper part of the first rotating shaft, the upper end of the first rotating shaft is fixedly connected with the first gear, the right part of the lower sleeve is rotatably connected with the second rotating shaft, the second rotating shaft is positioned in the through hole, the left end of the second rotating shaft is fixedly connected with the second gear, the right side of the lower part of the upper sleeve is fixedly connected with the supporting block, the left part of the supporting block is provided with the cylindrical cavity, the right side of the upper part of the upper sleeve is fixedly connected with the supporting plate, and the right part of the supporting plate is provided with the threaded hole, the supporting shoe right part is rotated and is connected with the third pivot, and third pivot surface upper portion is provided with the screw thread, and third pivot external screw thread and the screw hole screw-thread fit of backup pad, third pivot upper portion rigid coupling have the carousel, and the second pivot right part is connected with the connecting axle through the universal joint, and third pivot lower part is connected with the connecting axle through the universal joint, and second pivot, connecting axle and third pivot form the universal shaft.
More preferably, the sealing assembly comprises a sealing sleeve, a liquid through pipe, a sealing piston and a sealing ring, the sealing sleeve is fixedly connected to the left portion of the lower surface of the supporting plate, the liquid through pipe is fixedly connected to the left side of the upper portion of the sealing sleeve and communicates the inside of the sealing sleeve with the hydraulic cavity, the sealing piston is fixedly connected to the lower end of the sealing sleeve, a through hole with the same size as the inner diameter of the sealing sleeve is formed in the middle of the sealing piston, the sealing piston is in sliding fit with the cylindrical cavity in the supporting block, the sealing ring is arranged above the hydraulic cavity, and the sealing ring is in sliding connection with the upper sleeve.
More preferably, the sealing ring is of a hollow structure and made of an elastic material, the lower portion of the sealing ring is arranged to protrude upwards and downwards, and the thickness of the upper portion of the sealing ring is smaller than that of the lower portion of the sealing ring.
Compared with the prior art, the invention has the following advantages: the invention divides the oil pressure seat into a lower sleeve and an upper sleeve, the lower sleeve is fixedly connected with the oil pipe, the upper sleeve is fixedly connected with the oil pressure gauge, when the oil pipe vibrates, the oil pressure gauge is not influenced, the lower sleeve and the upper sleeve are connected and sealed through the elastic sleeve, on the premise of ensuring that the pressure in the lower sleeve is transmitted to the pressure of the upper sleeve in real time, the vibration of the upper sleeve is relieved, the protection of sensitive elements in the oil pressure gauge is realized, the service life of the oil pressure gauge is prolonged, the pressure in the oil pressure seat is reduced while the oil pressure seat is blocked when the oil pipe generates oil pressure fluctuation through the matching of the pressure stabilizing component and the pressure reducing mechanism, when the oil pressure gauge is replaced, the oil pressure in the oil pressure seat is reduced, the effect of eliminating the residual pressure in the oil pressure seat is realized, and the sealing component further seals the oil pressure gauge and the oil pressure seat after the oil pressure gauge is installed, a better sealing effect is achieved.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a cross-sectional view of a three-dimensional structure of the present invention.
Fig. 3 is a schematic perspective view of the present invention at a.
Fig. 4 is a sectional view showing a three-dimensional structure of the voltage stabilizing module according to the present invention.
Fig. 5 is a schematic perspective view of the present invention at B.
Fig. 6 is a sectional view of the pressure reducing mechanism of the present invention.
Fig. 7 is a partial sectional view of the relief mechanism of the present invention.
Fig. 8 is a partial sectional view of the relief mechanism of the present invention.
Fig. 9 is a schematic perspective view of the present invention at C.
The parts are labeled as follows: 1. a lower sleeve, 101, a circular truncated cone groove, 102, a through hole, 103, a first cavity, 104, a second cavity, 105, a vent hole, 106, a third cavity, 107, a vent groove, 2, an elastic sleeve, 3, an upper sleeve, 310, a hydraulic cavity, 4, a support rod, 5, a connecting block, 6, a sleeve ring, 7, an oil pressure gauge, 8, a pressure stabilizing component, 801, a first fixing ring, 802, a connecting plate, 803, a second fixing ring, 804, a special-shaped plate, 805, an oil inlet channel, 9, a pressure reducing mechanism, 901, a round pipe, 902, a communicating pipe, 903, a piston pipe, 904, a pressure reducing shell, 905, an oil passing ring, 906, a limiting ring, 907, a bent rod, 10, a mechanism, 1001, a fixing block, 1002, a fixing column, 1003, a sliding block, 1004, a first sleeve, 1005, a spring, a piston disc, 1007, a first rotating shaft, a second rotating shaft, 1011, a second gear, 1006, 1012. supporting block, 1013, backup pad, 1014, third pivot, 1015, carousel, 1016, connecting axle, 11, seal assembly, 1101, seal sleeve, 1102, lead to the liquid pipe, 1103, sealed piston, 1104, sealing washer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
An oil pressure seat with a pressure gauge protection function for an oil field comprises a lower sleeve 1, an elastic sleeve 2, an upper sleeve 3, a support rod 4, a connecting block 5, a lantern ring 6, an oil pressure gauge 7, a pressure stabilizing component 8, a pressure reducing mechanism 9, a pressure relief mechanism 10 and a sealing component 11, wherein the lower sleeve 1 is fixedly connected to an oil pipeline through a flange, a circular platform groove 101 is formed in the lower portion of the inner surface of the lower sleeve 1, a through hole 102 is formed in the right side of the middle of the lower sleeve 1, a first cavity 103 is formed in the upper portion of the lower sleeve 1, a second cavity 104 communicated with the first cavity 103 is formed in the upper portion of the lower sleeve 1, the second cavity 104 is located above the first cavity 103, two air vents 105 which are symmetrical left and right are formed between the upper surface of the lower sleeve 1 and the second cavity 104, four third cavities 106 communicated with the first cavity 103 are uniformly formed in the circumferential direction in the upper portion of the lower sleeve 1, the four third cavities 106 are respectively positioned outside the first cavities 103, four vent grooves 107 are uniformly formed in the right side of the lower sleeve 1 in the circumferential direction, the four vent grooves 107 are respectively communicated with the adjacent third cavities 106, the upper portion of the lower sleeve 1 is provided with an elastic sleeve 2, the lower end of the elastic sleeve 2 is in sliding fit with the second cavity 104, the elastic sleeve 2 is made of elastic corrosion-resistant rubber materials, the upper portion of the elastic sleeve 2 is in a folded arrangement, the lower portion of the elastic sleeve 2 is in a corrugated tube arrangement, the elastic sleeve 2 is used for eliminating the vibration of a petroleum pipeline to the upper sleeve 3 and the oil pressure gauge 7, the effect of protecting electrical components in the oil pressure gauge 7 is realized, the upper portion of the elastic sleeve 2 is fixedly connected with the upper sleeve 3, the upper portion of the upper sleeve 3 is provided with hydraulic cavities 310, four support rods 4 are uniformly arranged along the circumferential direction of the lower sleeve 1, the lower ends of the four support rods 4 are fixed on the ground, and the upper portions of the four support rods 4 are all in threaded arrangement, four connecting blocks 5 are uniformly arranged along the circumferential direction of an upper sleeve 3, the four connecting blocks 5 are respectively rotatably connected with adjacent supporting rods 4, the four connecting blocks 5 are respectively and fixedly connected with the upper parts of the adjacent supporting rods 4 through nuts, lantern rings 6 are fixedly connected at the inner ends of the four connecting blocks 5, the lantern rings 6 support the upper sleeve 3, an oil pressure gauge 7 is fixedly connected on the upper surface of the upper sleeve 3 through flanges, a pressure stabilizing component 8 is arranged in a lower sleeve 1, the pressure stabilizing component 8 is fixedly connected with the upper part of the inner surface of the lower sleeve 1, the pressure stabilizing component 8 is used for stabilizing the oil pressure change in an oil pressure seat after the oil pressure fluctuation occurs in a petroleum pipeline, a pressure reducing mechanism 9 is arranged in the lower sleeve 1, the pressure reducing mechanism 9 is fixedly connected with the upper part of the inner surface of the lower sleeve 1, the pressure reducing mechanism 9 is positioned below the pressure stabilizing component 8, the pressure reducing mechanism 9 is used for reducing the pressure in the oil pressure seat after the oil pressure fluctuation occurs in the petroleum pipeline, and the effect of protecting the oil pressure gauge 7 is realized, the pressure relief mechanism 10 is arranged on the right of the oil pressure seat, the pressure relief mechanism 10 penetrates through the right of the lower sleeve 1, the pressure relief mechanism 10 is used for reducing the residual pressure in the oil pressure seat when the oil pressure gauge 7 is replaced, the sealing assembly 11 is arranged on the upper portion of the upper sleeve 3, the sealing assembly 11 is used for sealing between the oil pressure gauge 7 and the upper sleeve 3, and better sealing between the oil pressure gauge 7 and the oil pressure seat is achieved.
Firstly, an operator fixes an oil pressure seat in a closed state, after the operator fixes four support rods 4 on the ground, a connecting block 5 is sleeved on the support rods 4, then a nut is tightened to fix an upper sleeve 3, then the operator fixedly connects a lower sleeve 1 on a petroleum pipeline through a flange, the oil pressure seat is fixed, an oil pressure meter 7 is fixedly connected on the upper surface of the upper sleeve 3 through the flange, the oil pressure meter 7 is installed, the oil pressure seat in the closed state is opened, after the oil pressure seat is opened, crude oil enters the oil pressure seat and passes through a pressure relief mechanism 10, a pressure reduction mechanism 9 and a pressure stabilizing component 8, gas in the oil pressure seat is compressed, at the moment, the lower part of the oil pressure seat is crude oil, the upper part of the oil pressure seat is compressed gas, when oil pressure fluctuation occurs in the petroleum pipeline, the petroleum pipeline can drive the lower sleeve 1 to vibrate, because the upper half part of the elastic sleeve 2 is arranged in a folded shape, when the lower sleeve 1 vibrates longitudinally, the upper half part of the lower sleeve 1 can be prevented from vibrating and transmitting to the upper sleeve 3 through folding up and down, so that the oil pressure gauge 7 can not vibrate, when the lower sleeve 1 vibrates transversely, because the lower part of the lower sleeve 1 is in a corrugated pipe shape, the corrugated pipe shape has better transverse deformation amount when the lower sleeve vibrates transversely, the upper sleeve 3 can be better prevented from vibrating transversely, the oil pressure gauge 7 is protected, the pressure stabilizing component 8 is used for stabilizing the pressure at the upper part of an oil pressure seat, when oil pressure fluctuation occurs in an oil pipeline, the pressure stabilizing component 8 enters a pressure stabilizing state, the pressure stabilizing component 8 blocks the oil pressure seat, at the moment, the pressure above the pressure stabilizing component 8 in the oil pressure seat cannot be influenced by the pressure below the pressure stabilizing component, the pressure reducing mechanism 9 enters a pressure reducing state, the pressure reducing mechanism 9 enables the elastic sleeve 2 to move upwards, the stretching length of the elastic sleeve 2 between the lower sleeve 1 and the upper sleeve 3 is increased, the volume change of oil between the elastic sleeves 2 is increased, the pressure in the oil pressure seat is reduced, meanwhile, the middle part of a corrugated pipe of the elastic sleeve 2 is pulled out by the pressure reducing mechanism 9, the volume in the elastic sleeve 2 is increased, the pressure in the oil pressure seat is reduced, after the oil pressure fluctuation of an oil pipeline disappears, the pressure stabilizing component 8 is released from the pressure stabilizing state, the pressure reducing mechanism 9 is released from the pressure reducing state, the oil pressure meter 7 continues to measure the oil pressure, when the oil pressure meter 7 needs to be replaced, an operator controls the pressure reducing mechanism 10 to close the oil pressure seat and then carry out pressure relief, meanwhile, the pressure reducing mechanism 10 drives the sealing component 11 in the sealing state to remove the seal, after the pressure relief of the pressure reducing mechanism 10 is completed and the seal of the sealing component 11 is completed, the operator replaces the oil pressure meter 7, after the replacement of the oil pressure meter 7 is completed, the operator controls the pressure reducing mechanism 10 to open the oil pressure seat, and simultaneously, the sealing component 11 enters the sealing state, the oil pressure gauge 7 continues the oil pressure measurement.
Example 2
On the basis of embodiment 1, as shown in fig. 2 and fig. 4 to fig. 6, the pressure stabilizing assembly 8 includes a first fixing ring 801, a connecting plate 802, a second fixing ring 803, and a special-shaped plate 804, the first fixing ring 801 is fixedly connected to the upper portion of the inner surface of the lower casing 1, two connecting plates 802 are symmetrically arranged on the left and right, the outer ends of the two connecting plates 802 are respectively fixedly connected to the inner side of the lower portion of the first fixing ring 801, the inner ends of the two connecting plates 802 are fixedly connected to the second fixing ring 803, the second fixing ring 803 has the same thickness as the first fixing ring 801, the upper surface of the second fixing ring 803 is fixedly connected to the special-shaped plate 804, the special-shaped plate 804 is made of an elastic material, the lower surface of the special-shaped plate 804 is recessed upward, the upper surface is raised upward, the special-shaped plate 804 gradually decreases in thickness from the middle portion to the outer portion, a passage formed between the first fixing ring 801 and the second fixing ring 803 is an oil inlet passage 805, the oil inlet passage 805 is narrow upward, the outlet above the oil inlet channel 805 is aligned with the middle of the special-shaped plate 804.
After oil pressure fluctuation occurs in a petroleum pipeline, the pressure below the pressure stabilizing component 8 is increased, the pressure stabilizing component 8 enters a pressure stabilizing state, so that the impact force on the special-shaped plate 804 is increased, the special-shaped plate 804 deforms, the edge of the special-shaped plate is upwards and then clings to the inner surface of the lower sleeve 1, after the special-shaped plate 804 deforms, the pressure below the special-shaped plate 804 in the lower sleeve 1 cannot be transmitted to the upper part of the special-shaped plate 804, the effect of blocking oil pressure transmission after the oil pressure fluctuation occurs is achieved, meanwhile, because the lower surface of the special-shaped plate 804 is upwards sunken, the upper surface of the special-shaped plate is upwards convex, and the upwards sunken part of the lower surface is aligned with the outlet of the oil inlet channel 805, the special-shaped plate 804 is quickly deformed after being impacted by crude oil, the thickness of the special-shaped plate 804 gradually decreases from the middle part to the outer part, so that the edge deformation of the special-shaped plate 804 is larger after being impacted by crude oil and better clings to the inner surface of the lower sleeve 1, the oil inlet channel 805 is wide at the bottom and narrow at the top, so that when oil passes through the oil inlet channel 805, impact force gathers, the special-shaped plate 804 is helped to achieve a better deformation effect, after oil pressure fluctuation of the oil pipeline disappears, the pressure stabilizing component 8 releases a pressure stabilizing state, and then the oil pressure meter 7 continues to perform oil pressure detection.
As shown in fig. 2 and fig. 6, the depressurization mechanism 9 includes two circular tubes 901, two communicating tubes 902, two piston tubes 903, a depressurization housing 904, an oil-passing ring 905, two limiting rings 906 and a curved rod 907, the two circular tubes 901 are arranged in bilateral symmetry, the outer sides of the two circular tubes 901 are respectively fixedly connected with the upper part of the inner surface of the lower casing 1, the inner sides of the two circular tubes 901 are fixedly connected with the communicating tube 902, a chute is arranged inside the communicating tube 902, the two circular tubes 901 penetrate through the lower casing 1 to communicate the inside of the communicating tube 902 with the first cavity 103, the piston tubes 903 are slidably connected with the piston tubes 903 in the chute of the communicating tube 902, the piston tubes 903 are located at the lower part of the communicating tube 902, the piston tubes 903 are slidably matched with the second fixing ring 803 and the special-shaped plate 804, the lower ends of the piston tubes 903 are fixedly connected with the depressurization housing 904, the depressurization housing 904 is arranged in a cavity, the lower surface of the depressurization housing 904 is arranged in a downward bulge, the material of the depressurization housing 904 is an elastic material, the cavity of the pressure reducing shell 904 is communicated with the communicating pipe 902 through the piston pipe 903, an oil passing ring 905 is fixedly connected to the middle of the pressure reducing shell 904, a plurality of oil passing holes are formed in the upper portion of the oil passing ring 905, a limiting ring 906 is fixedly connected to the middle of the inner surface of the lower casing 1, the limiting ring 906 is in sliding fit with the oil passing ring 905, four bent rods 907 are uniformly arranged along the circumferential direction of the elastic casing 2, the inner ends of the four bent rods 907 are fixedly connected with the lower portion of the outer surface of the elastic casing 2 respectively, and the lower portions of the four bent rods 907 are in sliding fit with the adjacent third cavity 106 respectively.
After the oil pressure seat is installed, when oil enters the oil pressure seat and passes through the pressure reducing mechanism 9, the oil enters the upper part of the oil pressure seat through the oil through holes on the oil through ring 905, because the oil through holes are small, the gas entering the oil pipeline from the original gas of the oil pressure seat is reduced, finally the oil pressure seat forms a gas environment on the upper part and an oil environment on the lower part, after the oil pressure fluctuation occurs in the oil pipeline, the pressure reducing mechanism 9 enters a pressure reducing state, the pressure reducing shell 904 moves upwards after being impacted by crude oil, the pressure reducing shell 904 drives the piston pipe 903 to move upwards, the gas in the communicating pipe 902 is compressed, the air pressure in the first cavity 103, the circular pipe 901, the piston pipe 903 and the communicating pipe 902 is increased, the air pressure in the first cavity 103 is increased to drive the four bent rods 907 to move upwards and outwards, the bent rods 907 drive the lower part of the outer surface of the elastic sleeve 2 to move outwards, so that the volume in the elastic sleeve 2 is increased, therefore, the pressure in the oil pressure seat is reduced, the effect of protecting an oil pressure gauge 7 after oil pressure fluctuation occurs in an oil pipeline is achieved, meanwhile, the lower part of the outer surface of the elastic sleeve 2 deforms to drive the elastic sleeve 2 to move upwards, the elastic sleeve 2 moves upwards to increase the stretching length of the elastic sleeve 2 between the lower sleeve 1 and the upper sleeve 3, the volume change of oil between the elastic sleeves 2 is increased, the pressure in the oil pressure seat is reduced, after the oil pressure fluctuation of the oil pipeline disappears, the pressure reducing mechanism 9 releases a pressure reducing state, the oil pressure gauge 7 continues to perform oil pressure measurement, the pressure stabilizing component 8 is matched with the pressure reducing mechanism 9, after the oil pressure fluctuation occurs in the oil pipeline, the pressure in the oil pressure seat is reduced while the oil pressure seat is blocked, and the effect of protecting the oil pressure gauge is achieved.
As shown in fig. 1, 2, and 7-9, the pressure relief mechanism 10 includes a fixed block 1001, fixed posts 1002, sliding blocks 1003, a first sleeve 1004, a spring 1005, a piston disc 1006, a first rotating shaft 1007, a second sleeve 1008, a first gear 1009, a second gear 1011, a second rotating shaft 1010, a supporting block 1012, a supporting plate 1013, a third rotating shaft 1014, and a rotating disc 1015, wherein three fixed blocks 1001 are uniformly arranged in the lower sleeve 1 along the circumferential direction, the outer ends of the three fixed blocks 1001 are respectively fixed to the lower portion of the inner surface of the lower sleeve 1, three fixed posts 1002 are uniformly arranged in the lower sleeve 1 along the circumferential direction, the upper ends of the three fixed posts 1002 are respectively fixed to the middle portion of the lower surface of the adjacent fixed blocks 1001, three sliding blocks 1003 are uniformly arranged in the circumferential direction in the lower sleeve 1, the outer portions of the three sliding blocks 1003 are respectively in sliding fit with the lower portions of the adjacent fixed posts 1002, the inner ends of the three sliding blocks 1003 are fixedly connected to the first sleeve 1004, the inner surface of the first sleeve 1004 is provided with threads, a spring 1005 is fixedly connected to the lower surface of the first sleeve 1004, a piston disc 1006 is fixedly connected to the lower end of the spring 1005, the piston disc 1006 is in a circular truncated cone shape, the piston disc 1006 is in press fit with the circular truncated cone groove 101, an annular groove of the piston disc 1006 is in sliding fit with the first sleeve 1004, an annular groove is formed in the upper surface of the piston disc 1006, the spring 1005 is located in the annular groove of the piston disc 1006, the lower end of the spring 1005 is fixedly connected to the lower surface of the annular groove of the piston disc 1006, a first rotating shaft 1007 is rotatably connected to the inside of the first sleeve 1004, a thread which is in threaded fit with the inner thread of the first sleeve 1004 is arranged on the outer surface of the first rotating shaft 1007, a second sleeve 1008 is fixedly connected to the inner end of the three fixing blocks 1001, the second sleeve 1008 is located above the first sleeve 1004, the second sleeve 1008 is rotatably connected to the upper portion of the first rotating shaft 1007, a first gear 1009 is fixedly connected to the upper end of the first rotating shaft 1007, a second rotating shaft 1010 is rotatably connected to the right portion of the lower sleeve 1, the second rotating shaft 1010 is located in the through hole 102, the left end of the second rotating shaft 1010 is fixedly connected with a second gear 1011, the right side of the lower portion of the upper sleeve 3 is fixedly connected with a supporting block 1012, the left portion of the supporting block 1012 is provided with a cylindrical cavity, the right side of the upper portion of the upper sleeve 3 is fixedly connected with a supporting plate 1013, the right portion of the supporting plate 1013 is provided with a threaded hole, the right portion of the supporting block 1012 is rotatably connected with a third rotating shaft 1014, the upper portion of the outer surface of the third rotating shaft 1014 is provided with threads, the external threads 1014 of the third rotating shaft are in threaded fit with the threaded hole of the supporting plate 1013, the upper portion of the third rotating shaft 1014 is fixedly connected with a rotating disc 1015, the right portion of the second rotating shaft 1010 is connected with a connecting shaft 1016 through a universal joint, the lower portion of the third rotating shaft 1014 is connected with the connecting shaft 1016, the second rotating shaft 1010, the connecting shaft 1016 and the third rotating shaft 1014 form a universal shaft, and when the oil pressure gauge 7 is replaced, the pressure relief mechanism 10 is used for reducing the residual pressure in the oil pressure seat, and the effect of protecting the safety of operators is achieved.
When the oil pressure gauge 7 needs to be replaced, an operator controls the pressure relief mechanism 10 to close the oil pressure seat for pressure relief, the operator rotates the turntable 1015 clockwise, the turntable 1015 drives the third rotating shaft 1014 to rotate clockwise, the third rotating shaft 1014 drives the connecting shaft 1016 to rotate clockwise, the connecting shaft 1016 drives the second rotating shaft 1010 to rotate clockwise, the second rotating shaft 1010 drives the second gear 1011 to rotate clockwise, the second gear 1011 drives the first gear 1009 to rotate clockwise, the first gear 1009 drives the first rotating shaft 1007 to rotate clockwise, the first rotating shaft 1007 drives the first bushing 1004 to move downwards, the first bushing 1004 drives the sliding block 1003 and the spring 1005 to move downwards, the spring 1005 drives the piston disc 1006 to move downwards, meanwhile, the third rotating shaft 1014 drives the support plate 1013 to move upwards, the support plate 1013 drives the upper bushing 3 to move upwards, the upper bushing 3 moves upwards to stretch the elastic bushing 2, when the piston disc 1006 is pressed and fitted with the circular table groove 101, when the oil pressure seat is closed, the piston disc 1006 cannot move downwards under the limitation of the circular truncated cone groove 101, the spring 1005 begins to compress, the elastic sleeve 2 continues to be stretched, the volume in the oil pressure seat is increased, the pressure is reduced, the pressure relief is completed, at the moment, an operator replaces the oil pressure gauge 7, after the oil pressure gauge 7 is replaced, the operator controls the pressure relief mechanism 10 to open the oil pressure seat, the operator rotates the rotating disc 1015 anticlockwise, the rotating disc 1015 drives the third rotating shaft 1014 to rotate anticlockwise, the third rotating shaft 1014 drives the connecting shaft 1016 to rotate anticlockwise, the connecting shaft 1016 drives the second rotating shaft 1010 to rotate anticlockwise, the second rotating shaft 1010 drives the second gear 1011 to rotate anticlockwise, the second gear 1011 drives the first gear 1009 to rotate anticlockwise, the first gear 1009 drives the first rotating shaft 1007 to rotate anticlockwise, the first rotating shaft 1007 drives the first sleeve 1004 to move upwards, the first sleeve 1004 drives the sliding block 1003 to move upwards, and the spring 1005 gradually recovers, after the spring 1005 is restored, the spring 1005 drives the piston disc 1006 to move upwards, the piston disc 1006 loses the extrusion fit with the circular truncated cone groove 101, the oil pressure seat is opened, in the process of opening the oil pressure seat, the third rotating shaft 1014 drives the supporting plate 1013 to move downwards, the supporting plate 1013 drives the upper sleeve 3 to move downwards, the upper sleeve 3 moves downwards to enable the elastic sleeve 2 to be compressed, and when the upper sleeve 3 is matched with the lantern ring 6 for limiting, an operator stops rotating the rotary disc 1015.
As shown in fig. 2 and 9, the sealing assembly 11 includes a sealing sleeve 1101, a liquid passing pipe 1102, a sealing piston 1103 and a sealing ring 1104, the sealing sleeve 1101 is fixedly connected to the left portion of the lower surface of the supporting plate 1013, the liquid passing pipe 1102 is fixedly connected to the left side of the upper portion of the sealing sleeve 1101, the liquid passing pipe 1102 connects the inside of the sealing sleeve 1101 with the hydraulic cavity 310, the sealing piston 1103 is fixedly connected to the lower end of the sealing sleeve 1101, a through hole 102 having the same inner diameter as the sealing sleeve 1101 is formed in the middle of the sealing piston 1103, the sealing piston 1103 is slidably fitted with the cylindrical cavity in the supporting block 1012, the sealing ring 1104 is arranged above the hydraulic cavity 310, the sealing ring 1104 is slidably connected with the upper sleeve 3, the sealing ring 1104 is of a hollow structure and made of an elastic material, the lower portion of the sealing ring 1104 is arranged to protrude upward and downward, and the upper portion of the sealing ring 1104 is thinner than the lower portion of the sealing ring 1104.
When the oil pressure gauge 7 needs to be replaced, the sealing assembly 11 in a sealing state is unsealed, the supporting plate 1013 moves upwards to drive the upper sleeve 3 and the sealing sleeve 1101 to move upwards, the upper sleeve 3 and the sealing sleeve 1101 drive the liquid through pipe 1102 to move upwards, the sealing sleeve 1101 drive the sealing piston 1103 to move upwards, the sealing piston 1103 moves upwards to reduce the pressure in the cylindrical cavity of the supporting block 1012, meanwhile, the pressure in the sealing sleeve 1101, the liquid through pipe 1102 and the hydraulic cavity 310 is reduced, the pressure in the hydraulic cavity 310 is reduced to restore the original state of the sealing ring 1104 in a squeezed state, the sealing assembly 11 is unsealed, after the oil pressure gauge 7 is replaced, the supporting plate 1013 moves downwards to drive the lower sleeve 1 and the sealing sleeve 1101 to move downwards, the lower sleeve 1 and the sealing sleeve 1101 drive the liquid through pipe 1102 to move downwards, the sealing sleeve 1101 drive the sealing piston 1103 to move downwards, and the pressure in the cylindrical cavity of the supporting block 1012 increases, meanwhile, the pressure in the sealing sleeve 1101, the liquid through pipe 1102 and the hydraulic cavity 310 is increased, the lower surface of the sealing ring 1104 is extruded upwards, the sealing ring 1104 is of a hollow structure and made of elastic materials, after the sealing ring 1104 is extruded, gas in the cavity is compressed, the compressed gas extrudes the upper portion of the sealing ring 1104, the upper portion of the sealing ring 1104 is deformed and clings to the oil pressure gauge 7, the lower portion of the sealing ring 1104 is arranged in a mode of protruding upwards and downwards, the lower portion of the sealing ring 1104 which is extruded frequently is not prone to damage, the thickness of the upper portion of the sealing ring 1104 is smaller than that of the lower portion of the sealing ring 1104, when the pressure in the sealing ring 1104 is compressed, the upper portion of the sealing ring 1104 is easier to form a larger contact area with the lower surface of the oil pressure gauge 7, and better sealing effect of the oil pressure gauge 7 is achieved.
While the disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Accordingly, the scope of the present disclosure should not be limited to the above-described embodiments, but should be defined not only by the appended claims, but also by equivalents thereof.
Claims (9)
1. An oil pressure seat with a pressure gauge protection function for an oil field is characterized by comprising a lower sleeve (1), an elastic sleeve (2), an upper sleeve (3), a supporting rod (4), a connecting block (5), a sleeve ring (6), an oil pressure gauge (7), a pressure stabilizing component (8), a pressure reducing mechanism (9), a pressure relief mechanism (10) and a sealing component (11), wherein the lower sleeve (1) is fixedly connected to an oil pipeline through a flange, a circular platform groove (101) is formed in the lower portion of the inner surface of the lower sleeve (1), a through hole (102) is formed in the right side of the middle of the lower sleeve (1), a first cavity (103) is formed in the upper portion of the lower sleeve (1), a second cavity (104) communicated with the first cavity (103) is formed in the upper portion of the lower sleeve (1), the second cavity (104) is located above the first cavity (103), two air vents (105) which are symmetrical left and right are formed between the upper surface of the lower sleeve (1) and the second cavity (104), four third cavities (106) communicated with the first cavity (103) are uniformly formed in the upper portion of the lower sleeve (1) in the circumferential direction, the four third cavities (106) are respectively located on the outer side of the first cavity (103), four vent grooves (107) are uniformly formed in the right side of the lower sleeve (1) in the circumferential direction, the four vent grooves (107) are respectively communicated with the adjacent third cavities (106), an elastic sleeve (2) is arranged on the upper portion of the lower sleeve (1), the lower end of the elastic sleeve (2) is in sliding fit with the second cavity (104), an upper sleeve (3) is fixedly connected to the upper portion of the elastic sleeve (2), hydraulic cavities (310) are formed in the upper portion of the upper sleeve (3), four support rods (4) are uniformly arranged along the circumferential direction of the lower sleeve (1), the lower ends of the four support rods (4) are fixed on the ground, the upper portions of the four support rods (4) are arranged in a threaded manner, four connecting blocks (5) are uniformly arranged along the circumferential direction of the upper sleeve (3), the four connecting blocks (5) are respectively and rotatably connected with the adjacent supporting rods (4), the four connecting blocks (5) are respectively and fixedly connected with the upper parts of the adjacent supporting rods (4) through nuts, lantern rings (6) are fixedly connected with the inner ends of the four connecting blocks (5), the lantern rings (6) support the upper sleeve (3), an oil pressure meter (7) is fixedly connected with the upper surface of the upper sleeve (3) through flanges, a pressure stabilizing component (8) is arranged in the lower sleeve (1), the pressure stabilizing component (8) is fixedly connected with the upper part of the inner surface of the lower sleeve (1), the pressure stabilizing component (8) is used for stabilizing the oil pressure change in an oil pressure seat after the oil pressure fluctuation occurs in an oil pipeline, a pressure reducing mechanism (9) is arranged in the lower sleeve (1), the pressure reducing mechanism (9) is fixedly connected with the upper part of the inner surface of the lower sleeve (1), the pressure reducing mechanism (9) is positioned below the pressure stabilizing component (8), and the pressure reducing mechanism (9) is used for reducing the oil pressure seat after the oil pressure fluctuation occurs in the oil pipeline, the pressure relief mechanism (10) is arranged on the right of the oil pressure seat, the pressure relief mechanism (10) penetrates through the right of the lower sleeve (1), residual pressure in the oil pressure seat is reduced when the pressure relief mechanism (10) is used for replacing an oil pressure gauge (7), the sealing assembly (11) is arranged on the upper portion of the upper sleeve (3), and the sealing assembly (11) is used for sealing between the oil pressure gauge (7) and the upper sleeve (3).
2. The oil pressure seat with the pressure gauge protection function for the oil field is characterized in that the elastic sleeve (2) is made of elastic corrosion-resistant rubber materials, the upper portion of the elastic sleeve (2) is arranged in a folded mode, the lower portion of the elastic sleeve (2) is arranged in a corrugated pipe mode, and the elastic sleeve (2) is used for eliminating vibration of an oil pipeline to the upper sleeve (3) and the oil pressure gauge (7).
3. The oil pressure seat with the pressure gauge protection function for the oil field according to claim 1, wherein the pressure stabilizing assembly (8) comprises a first fixing ring (801), two connecting plates (802), a second fixing ring (803) and a special-shaped plate (804), the first fixing ring (801) is fixedly connected to the upper portion of the inner surface of the lower casing (1), the two connecting plates (802) are arranged in a bilateral symmetry manner, the outer ends of the two connecting plates (802) are fixedly connected to the inner side of the lower portion of the first fixing ring (801), the inner ends of the two connecting plates (802) are fixedly connected to the second fixing ring (803), the thickness of the second fixing ring (803) is the same as that of the first fixing ring (801), the special-shaped plate (804) is fixedly connected to the upper surface of the second fixing ring (803), the special-shaped plate (804) is made of an elastic material, and a channel formed between the first fixing ring (801) and the second fixing ring (803) is an oil inlet channel (805), the lower part of the oil inlet channel (805) is wide and the upper part of the oil inlet channel is narrow, and the outlet at the upper part of the oil inlet channel (805) is aligned with the middle part of the special-shaped plate (804).
4. An oil pressure seat with a pressure gauge protection function for an oilfield according to claim 3, wherein the lower surface of the shaped plate (804) is recessed upward, the upper surface is raised upward, and the thickness of the shaped plate (804) is gradually reduced from the middle to the outside.
5. The oil pressure seat with the pressure gauge protection function for the oil field according to claim 1 is characterized in that the pressure reducing mechanism (9) comprises two circular tubes (901), a communication tube (902), a piston tube (903), a pressure reducing shell (904), an oil communication ring (905), a limiting ring (906) and a bent rod (907), the two circular tubes (901) are arranged in bilateral symmetry, the outer sides of the two circular tubes (901) are fixedly connected with the upper part of the inner surface of the lower sleeve (1) respectively, the inner sides of the two circular tubes (901) are fixedly connected with the communication tube (902), a sliding groove is formed in the communication tube (902), the two circular tubes (901) penetrate through the lower sleeve (1) to communicate the inside of the communication tube (902) with the first cavity (103), a piston tube (903) is connected in the sliding groove of the communication tube (902) in a sliding manner, the piston tube (903) is positioned at the lower part of the communication tube (902), and the piston tube (903) is in sliding fit with the second fixing ring (803) and the special-shaped plate (804), piston tube (903) lower extreme rigid coupling has step-down casing (904), step-down casing (904) middle part rigid coupling has logical oil ring (905), logical oil ring (905) upper portion has seted up a plurality of oil through hole, lower sleeve pipe (1) internal surface middle part rigid coupling has spacing ring (906), spacing ring (906) and logical oil ring (905) sliding fit, knee (907) evenly are provided with four along elastic sleeve (2) circumference, four knee (907) inner respectively with elastic sleeve (2) surface lower part rigid coupling, four knee (907) lower parts respectively with adjacent third cavity (106) sliding fit.
6. The oil pressure seat with the pressure gauge protection function for the oil field according to the claim 5 is characterized in that the pressure reducing shell (904) is arranged in a cavity, the lower surface of the pressure reducing shell (904) is arranged in a downward convex mode, the material of the lower surface of the pressure reducing shell (904) is elastic, and the cavity of the pressure reducing shell (904) is communicated with the communicating pipe (902) through the piston pipe (903).
7. The oil pressure seat with the pressure gauge protection function for the oil field according to claim 1 is characterized in that the pressure relief mechanism (10) comprises fixing blocks (1001), fixing columns (1002), sliding blocks (1003), a first sleeve (1004), springs (1005), a piston disc (1006), a first rotating shaft (1007), a second sleeve (1008), a first gear (1009), a second gear (1011), a second rotating shaft (1010), supporting blocks (1012), supporting plates (1013), a third rotating shaft (1014) and a rotating disc (1015), three fixing blocks (1001) are uniformly arranged in the circumferential direction in the lower sleeve (1), the outer ends of the three fixing blocks (1001) are respectively fixedly connected with the lower part of the inner surface of the lower sleeve (1), three fixing columns (1002) are uniformly arranged in the circumferential direction in the lower sleeve (1), the upper ends of the three fixing columns (1002) are respectively fixedly connected with the middle parts of the lower surfaces of the adjacent fixing blocks (1001), three sliding blocks (1003) are uniformly arranged in the circumferential direction in the lower sleeve (1), the outer portions of the three sliding blocks (1003) are respectively in sliding fit with the lower portions of adjacent fixing columns (1002), a first sleeve (1004) is fixedly connected to the inner end of each sliding block (1003), the inner surface of the first sleeve (1004) is in threaded arrangement, a spring (1005) is fixedly connected to the lower surface of the first sleeve (1004), a piston disc (1006) is fixedly connected to the lower end of the spring (1005), the piston disc (1006) is in a circular table shape, the piston disc (1006) is in extrusion fit with a circular table groove (101), a circular groove of the piston disc (1006) is in sliding fit with the first sleeve (1004), a circular groove is formed in the upper surface of the piston disc (1006), the spring (1005) is located in the circular groove of the piston disc (1006), the lower end of the spring (1005) is fixedly connected to the lower surface of the circular groove of the piston disc (1006), a first rotating shaft (1007) is rotatably connected to the inner portion of the first sleeve (1004), the outer surface of a first rotating shaft (1007) is provided with threads matched with the internal threads of the first sleeve (1004), the inner ends of three fixing blocks (1001) are fixedly connected with a second sleeve (1008), the second sleeve (1008) is positioned above the first sleeve (1004), the second sleeve (1008) is rotatably connected with the upper part of the first rotating shaft (1007), the upper end of the first rotating shaft (1007) is fixedly connected with a first gear (1009), the right part of a lower sleeve (1) is rotatably connected with a second rotating shaft (1010), the second rotating shaft (1010) is positioned in a through hole (102), the left end of the second rotating shaft (1010) is fixedly connected with a second gear (1011), the right side of the lower part of an upper sleeve (3) is fixedly connected with a supporting block (1012), the left part of the supporting block (1012) is provided with a cylindrical cavity, the right side of the upper part of the upper sleeve (3) is fixedly connected with a supporting plate (1013), the right part of the supporting plate (1013) is provided with a threaded hole, the right part of the supporting block (1012) is rotatably connected with a third rotating shaft (1014), the upper part of the outer surface of the third rotating shaft (1014) is provided with threads, the outer threads of the third rotating shaft (1014) are in threaded fit with the threaded holes of the support plate (1013), the upper part of the third rotating shaft (1014) is fixedly connected with a rotating disc (1015), the right part of the second rotating shaft (1010) is connected with a connecting shaft (1016) through a universal joint, the lower part of the third rotating shaft (1014) is connected with the connecting shaft (1016) through the universal joint, and the second rotating shaft (1010), the connecting shaft (1016) and the third rotating shaft (1014) form a universal shaft.
8. The oil field apparatus having a pressure gauge protection function according to claim 1, the sealing assembly (11) is characterized by comprising a sealing sleeve (1101), a liquid passing pipe (1102), a sealing piston (1103) and a sealing ring (1104), wherein the sealing sleeve (1101) is fixedly connected to the left portion of the lower surface of a supporting plate (1013), the liquid passing pipe (1102) is fixedly connected to the left side of the upper portion of the sealing sleeve (1101), the liquid passing pipe (1102) is used for communicating the interior of the sealing sleeve (1101) with a hydraulic cavity (310), the sealing piston (1103) is fixedly connected to the lower end of the sealing sleeve (1101), a through hole (102) which is the same as the inner diameter of the sealing sleeve (1101) is formed in the middle of the sealing piston (1103), the sealing piston (1103) is in sliding fit with a cylindrical cavity in the supporting block (1012), the sealing ring (1104) is arranged above the hydraulic cavity (310), and the sealing ring (1104) is in sliding connection with the upper sleeve (3).
9. The oil pressure seat with the pressure gauge protection function for the oil field according to claim 8, wherein the sealing ring (1104) is of a hollow structure and made of an elastic material, the lower part of the sealing ring (1104) is arranged to protrude upwards and downwards, and the thickness of the upper part of the sealing ring (1104) is thinner than that of the lower part of the sealing ring (1104).
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| CN202210227600.6A CN114608740B (en) | 2022-03-10 | 2022-03-10 | Oil pressure seat with pressure gauge protection function for oil field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108769A (en) * | 2023-10-23 | 2023-11-24 | 山东港源管道物流有限公司 | Oil field pipeline oil pressure gauge connecting valve with decompression oil extraction function |
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| CN117108769A (en) * | 2023-10-23 | 2023-11-24 | 山东港源管道物流有限公司 | Oil field pipeline oil pressure gauge connecting valve with decompression oil extraction function |
| CN117108769B (en) * | 2023-10-23 | 2023-12-19 | 山东港源管道物流有限公司 | Oil field pipeline oil pressure gauge connecting valve with decompression oil extraction function |
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