CN221120954U - High-pressure stop valve of oil well pipe water pressure testing machine - Google Patents
High-pressure stop valve of oil well pipe water pressure testing machine Download PDFInfo
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- CN221120954U CN221120954U CN202323212561.1U CN202323212561U CN221120954U CN 221120954 U CN221120954 U CN 221120954U CN 202323212561 U CN202323212561 U CN 202323212561U CN 221120954 U CN221120954 U CN 221120954U
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- oil well
- well pipe
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- 239000003129 oil well Substances 0.000 title claims abstract description 38
- 238000012360 testing method Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 74
- 238000009434 installation Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 230000006835 compression Effects 0.000 claims abstract description 20
- 238000007906 compression Methods 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 5
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000008439 repair process Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of repairing and detecting oil well pipes of oil and gas fields, in particular to a high-pressure stop valve of an oil well pipe water pressure testing machine. The utility model has reasonable and compact structure and convenient use, is convenient for the installation of the compression spring and the valve ball by arranging the connecting body, is also convenient for the disassembly and assembly between the valve ball and the oil well pipe to be tested, can ensure that the valve ball is closed after being in sealing contact with the upper end of the connecting body after moving downwards by arranging the driving mechanism, and can open the liquid outlet after moving upwards under the action of the compression spring after the driving mechanism acts again, so that the liquid outlet is communicated with the liquid inlet, and the valve ball can adopt accessories in oil and gas field oil extraction production, thereby reducing the processing cost and having the characteristics of safety, labor saving, simplicity and high efficiency.
Description
Technical Field
The utility model relates to the technical field of oil well pipe repair and detection of oil and gas fields, in particular to a high-pressure stop valve of an oil well pipe water pressure testing machine.
Background
The reliability of the service performance of an oil well pipe as an important component in the field of oil and gas field exploitation directly influences the yield of the oil and gas field. According to the regulatory requirements of the national standard, the oil well pipe must be detected in various aspects related to chemical components, mechanical properties, sealing properties and relevant dimensions before leaving the factory in the manufacturing factory so as to meet the requirements of the oil and gas field production field.
In the actual production process of oil and gas fields, the construction of well repair operation is frequently affected by various factors, which means that the production string is frequently operated, the connecting threads of the oil well pipe are inevitably damaged directly or indirectly, and the oil well pipe after use is also subjected to defect possibility due to the influence of factors such as corrosion, eccentric wear and the like on the underground environment. Therefore, it is necessary to repair and inspect the used oil country tubular goods so as to satisfy the use requirements specified by the standard.
The water pressure test is used as one of the most important links of the oil well pipe repair test, and the performance condition of the oil well pipe to be tested can be intuitively expressed. After the test pressure reaches a set value in the detection process, the externally applied power and the high-pressure stop valve on the water supply pipeline are required to be closed, the timing and pressure maintaining are started, the pressure change in the pressure maintaining process is recorded, and the sealing performance state of the repaired oil well pipe is judged according to the pressure change value of the timing period. In actual oil well pipe repairing and detecting production, 2 or more groups of high-pressure stop valves are often adopted to meet the requirements of closing a water supply pipeline and releasing the internal pressure of the oil well pipe after pressure test and detection. At present, a high-pressure stop valve of a conventional oil well pipe water pressure testing machine commonly adopts an air cylinder as a switching power source of a valve, and adopts a needle valve structure or a ball valve structure to realize the opening and closing of a pressure testing pipeline, so that the following defects exist: the cylinder is used as a power unit of the high-pressure stop valve, the output force of the power unit is limited, and the valve can not be effectively closed; the high-pressure stop valve adopting the hard seal needle valve structure basically fixes the part involved in sealing, and the sealing part can be damaged under the frequent action of external force so as to cause sealing failure; due to structural limitation, the material and processing cost of the needle valve with large diameter and high pressure requirement are high; the high-pressure stop valve adopting the ball valve structure is characterized in that the sealing steel ball is made of polytetrafluoroethylene material basically, and the sealing material deforms under the frequent action of external force to cause sealing failure.
Disclosure of Invention
The utility model provides a high-pressure stop valve of an oil well pipe water pressure testing machine, which overcomes the defects of the prior art and can effectively solve the problem of high processing cost of the high-pressure stop valve of the conventional oil well pipe water pressure testing machine.
The technical scheme of the utility model is realized by the following measures: the utility model provides an oil well pipe water pressure testing machine high pressure stop valve, which comprises a valve body, the valve ball, compression spring, connector and actuating mechanism, the valve body upper end is equipped with the installation passageway that link up from top to bottom, valve body upper portion left side is equipped with the inlet with installation passageway intercommunication, the installation passageway lower part inboard and the connector upper portion outside fixed mounting of corresponding inlet below position are in the same place, the connector lower extreme is equipped with the liquid outlet that link up from top to bottom, be equipped with the valve ball in the installation passageway of corresponding connector top position, valve ball lower part and connector upper end set up and be equipped with compression spring, valve body upside fixed mounting has the actuating mechanism that can make the valve ball remove the back and close the liquid outlet downwards.
The following are further optimizations and/or improvements to the above-described inventive solution:
The driving mechanism can comprise a gas-liquid booster cylinder, the lower part of the gas-liquid booster cylinder is fixedly installed with the upper side of the valve body, the outer side of the lower part of a piston rod of the gas-liquid booster cylinder is sleeved on the inner side of the upper part of the installation channel in a sealing way, and the lower end of the piston rod of the gas-liquid booster cylinder is propped against the outer side of the upper part of the valve ball.
The center of the lower end of the piston rod of the gas-liquid pressurizing cylinder can be provided with a limiting groove with a downward opening, and the outer side of the upper part of the valve ball is propped against the inner side of the lower end of the limiting groove.
The installation channel can comprise a first straight hole section, a taper hole section, a second straight hole section, a third straight hole section and a screw hole section which are sequentially communicated from top to bottom, wherein the taper hole section is in a conical shape with a big upper part and a small lower part, the inner diameters of the second straight hole section, the third straight hole section and the screw hole section are gradually increased, the lower part of a liquid inlet is communicated with the taper hole section, the upper part of the liquid inlet is communicated with the lower part of the first straight hole section, a piston rod of a gas-liquid pressurizing cylinder is hermetically sleeved in the first straight hole section, the upper part of a connecting body is screwed in the screw hole section, an installation step surface is arranged on the inner side of the upper part of the connecting body, a circular valve seat is sleeved in the third straight hole section corresponding to the upper end position of the connecting body, the lower end of a compression spring is installed on the installation step surface after passing through the inner side of the valve seat, and the valve ball moves downwards and is in sealing contact with the inner side of the upper end of the valve seat.
The inner wall of the upper part of the first straight hole section can be provided with a first annular groove, and a guide belt is arranged in the first annular groove.
At least one second annular groove can be arranged on the inner wall of the first straight hole section corresponding to the position between the first annular groove and the upper part of the valve ball at intervals up and down, and a sealing piece in sealing contact with the outer side of a piston rod of the gas-liquid pressurizing cylinder is arranged in each second annular groove.
The outer side of the lower end of the connecting body can be fixed with a mounting ring table with a distance between the upper side and the lower side of the valve body, and at least one collecting port which is gradually narrowed from inside to outside and communicated with the liquid outlet is distributed at intervals along the circumferential direction on the outer side of the mounting ring table.
The outer side of the lower end of the connecting body corresponding to the position below the collecting port can be provided with connecting threads.
The distance between the upper end of the mounting ring table and the lower end of the valve body can be 1-2 mm.
The utility model has reasonable and compact structure and convenient use, is convenient for the installation of the compression spring and the valve ball by arranging the connecting body, is also convenient for the disassembly and assembly between the valve ball and the oil well pipe to be tested, can ensure that the valve ball is closed after being in sealing contact with the upper end of the connecting body after moving downwards by arranging the driving mechanism, and can open the liquid outlet after moving upwards under the action of the compression spring after the driving mechanism acts again, so that the liquid outlet is communicated with the liquid inlet, and the valve ball can adopt accessories in oil and gas field oil extraction production, thereby reducing the processing cost and having the characteristics of safety, labor saving, simplicity and high efficiency.
Drawings
Fig. 1 is a schematic view of a partially sectioned structure from the front view of the first embodiment.
The codes in the drawings are respectively: the valve comprises a valve body 1, a valve ball 2, a compression spring 3, a connector 4, a liquid inlet 5, a liquid outlet 6, a gas-liquid pressurizing cylinder 7, a limiting groove 8, a first straight hole section 9, a taper hole section 10, a second straight hole section 11, a third straight hole section 12, a screw hole section 13, a mounting step surface 14, a valve seat 15, a guide belt 16, a sealing element 17, a mounting annular table 18 and a collecting port 19.
Detailed Description
The present utility model is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present utility model.
In the present utility model, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of the front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The utility model is further described below with reference to examples and figures:
Embodiment one: as shown in figure 1, the high-pressure stop valve of the oil well pipe water pressure testing machine comprises a valve body 1, a valve ball 2, a compression spring 3, a connecting body 4 and a driving mechanism, wherein an installation channel penetrating up and down is arranged at the upper end of the valve body 1, a liquid inlet 5 communicated with the installation channel is arranged at the left side of the upper part of the valve body 1, the inner side of the lower part of the installation channel corresponding to the position below the liquid inlet 5 and the outer side of the upper part of the connecting body 4 are fixedly arranged together, a liquid outlet 6 penetrating up and down is arranged at the lower end of the connecting body 4, the valve ball 2 is arranged in the installation channel corresponding to the position above the connecting body 4, the compression spring 3 is arranged at the lower part of the valve ball 2 and the upper end of the connecting body 4, and the driving mechanism capable of enabling the valve ball 2 to move downwards and then closing the liquid outlet 6 is fixedly arranged at the upper side of the valve body 1.
In the use, through setting up connector 4, be convenient for compression spring 3 and valve ball 2's installation, still be convenient for with the dismouting between the oil well pipe that awaits measuring, through setting up actuating mechanism, can make valve ball 2 move down after with connector 4 upper end sealing contact back close liquid outlet 6, actuating mechanism moves back once more, valve ball 2 opens liquid outlet 6 after upwards moving under compression spring 3's effect, make liquid outlet 6 and inlet 5 intercommunication, valve ball 2 can adopt the accessory in the oil gas field oil recovery production, reduce processing cost, the utility model is rational in infrastructure and compact, and convenient to use has safety, laborsaving, simple and convenient, high-efficient characteristics.
The high-pressure stop valve of the oil well pipe water pressure testing machine can be further optimized or/and improved according to actual needs:
Embodiment two: as an optimization of the above embodiment, as shown in fig. 1, the driving mechanism includes a gas-liquid booster cylinder 7, the lower part of the gas-liquid booster cylinder 7 is fixedly installed with the upper side of the valve body 1, the outer side of the lower part of the piston rod of the gas-liquid booster cylinder 7 is sealed and sleeved on the inner side of the upper part of the installation channel, and the lower end of the piston rod of the gas-liquid booster cylinder 7 is propped against the outer side of the upper part of the valve ball 2. According to the requirement, the gas-liquid booster cylinder 7 is a prior known technology, and the lower side of the cylinder body of the gas-liquid booster cylinder 7 is fixedly installed with the upper side of the valve body 1. In the use process, the gas-liquid booster cylinder 7 adopts compressed air as a power source, after the liquid inlet 5 flows into high-pressure fluid, a piston rod of the gas-liquid booster cylinder 7 stretches out to push the valve ball 2 to move downwards to close the liquid outlet 6, so that the gas-liquid booster cylinder can reliably act in a high-pressure fluid environment to realize the opening and closing of the liquid outlet 6.
Embodiment III: as an optimization of the embodiment, as shown in fig. 1, a limiting groove 8 with a downward opening is arranged at the center of the lower end of a piston rod of the gas-liquid pressurizing cylinder 7, and the outer side of the upper part of the valve ball 2 is propped against the inner side of the lower end of the limiting groove 8. In the use, through setting up spacing groove 8, can be spacing to valve ball 2, prevent that valve ball 2 from reciprocating in-process horizontal hunting from leading to unable closing liquid outlet 6 for liquid outlet 6 can normally open and close.
Embodiment four: as an optimization of the above embodiment, as shown in fig. 1, the installation channel includes a first straight hole section 9, a taper hole section 10, a second straight hole section 11, a third straight hole section 12 and a screw hole section 13 which are sequentially communicated from top to bottom, the taper hole section 10 is in a conical shape with a big top and a small bottom, the inner diameters of the second straight hole section 11, the third straight hole section 12 and the screw hole section 13 become larger gradually, the lower part of the liquid inlet 5 is communicated with the taper hole section 10, the upper part of the liquid inlet 5 is communicated with the lower part of the first straight hole section 9, a piston rod of the gas-liquid booster cylinder 7 is sleeved in the first straight hole section 9 in a sealing manner, the upper part of the connector 4 is screwed in the screw hole section 13, an installation step surface 14 is arranged on the inner side of the upper part of the connector 4, the third straight hole section 12 corresponding to the upper end position of the connector is internally provided with a circular valve seat 15, the lower end of the compression spring 3 passes through the inner side of the valve seat 15 and then is installed on the installation step surface 14, and the valve ball 2 moves downwards and then is in sealing contact with the inner side of the upper end of the valve seat 15.
The inner sides of the upper end and the inner sides of the lower end of the valve seat 15 are respectively provided with a chamfer angle according to requirements. In the use, through setting up disk seat 15, can extrude disk seat 15 after connector 4 screws for can form the hard seal between disk seat 15 downside and the connector 4 upper end, disk seat 15 can also play the constraint effect to compression spring 3 simultaneously, through setting up installation step face 14, the compression spring 3 of being convenient for installs.
Fifth embodiment: as an optimization of the above embodiment, as shown in fig. 1, the inner wall of the upper portion of the first straight hole section 9 is provided with a first annular groove, and a guide belt 16 is installed in the first annular groove. In the use process, the guide belt 16 is arranged, so that the piston rod of the gas-liquid pressurizing cylinder 7 can be guided, and the vibration absorption and wear resistance are realized.
Example six: as an optimization of the above embodiment, as shown in fig. 1, at least one second annular groove is arranged on the inner wall of the first straight hole section 9 corresponding to the position between the first annular groove and the upper part of the valve ball 2 at intervals up and down, and a sealing piece 17 in sealing contact with the outer side of the piston rod of the gas-liquid pressurizing cylinder 7 is arranged in each second annular groove. The seal 17 is a seal ring known in the art, as required. In the use, through this setting, can improve the sealing performance between the piston rod of gas-liquid pressure boost jar 7 in-process and the first straight hole section 9 that moves, prevent to take place to reveal the phenomenon.
Embodiment seven: as an optimization of the above embodiment, as shown in fig. 1, a mounting ring table 18 with a space between the upper side and the lower side of the valve body 1 is fixed on the outer side of the lower portion of the connector 4, and at least one collecting port 19 which gradually narrows from inside to outside and is communicated with the liquid outlet 6 is distributed on the outer side of the mounting ring table 18 at intervals along the circumferential direction. According to the demand, the quantity of gathering mouth 19 is 2, and one of them gathers mouth 19 and is used for installing the manometer, and another gathers mouth 19 and be used for installing pressure sensor, and collar platform 18 and connector 4 an organic whole set up, and the material of connector 4 and valve body 1 is the austenitic stainless steel material of current well-known, and the material of valve ball 2 and disk seat 15 is the high chromium martensite stainless steel material of current well-known. In the use, through setting up collar platform 18, be convenient for set up collection mouth 19 and install manometer and pressure sensor at collection mouth 19, improve the intensity of connector 4.
Example eight: as an optimization of the above embodiment, as shown in fig. 1, a connecting thread is provided on the outer side of the lower end of the connector 4 corresponding to the position below the collection port 19. In the use, through such setting, be convenient for be connected between connector 4 and the oil well pipe that awaits measuring, easy dismounting.
Example nine: as an optimization of the above embodiment, as shown in fig. 1, the distance between the upper end of the mounting ring table 18 and the lower end of the valve body 1 is 1 to 2mm. In the use, through this setting, with the connector 4 back of screwing, can form the hard seal between connector 4 upper end and disk seat 15 lower extreme, disk seat 15 upper end and the valve body 1 inboard, promote sealing performance.
The technical characteristics form the embodiment of the utility model, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
The use process of the best embodiment of the utility model comprises the following steps: in the initial state, the piston rod of the gas-liquid booster cylinder 7 is in a retracted state, the compression spring 3 supports the valve ball 2, the liquid inlet 5 is communicated with the liquid outlet 6, the lower end of the connecting body 4 is connected with an oil well pipe to be tested, the pressure gauge and the pressure sensor are respectively arranged at the 2 collecting ports 19, after the oil well pipe to be tested is boosted to a set pressure, the gas-liquid booster cylinder 7 acts, the piston rod of the gas-liquid booster cylinder 7 extends out, the valve ball 2 is pushed to descend until the piston rod contacts with the inner side of the upper end of the valve seat 15, meanwhile, the compression spring 3 is compressed, and the liquid outlet 6 is closed. After the dwell time is finished, the gas-liquid booster cylinder 7 acts, the piston rod of the gas-liquid booster cylinder 7 is retracted, the valve ball 2 is reset under the action of the elasticity of the compressed spring 3 and the pressure in the pressure testing machine, the liquid inlet 5 is communicated with the liquid outlet 6, and then the high-pressure liquid in the oil well pipe to be tested can be released to the circulating water tank until the pressure is normal.
Claims (10)
1. The utility model provides an oil well pipe water pressure testing machine high pressure stop valve, its characterized in that includes valve body, valve ball, compression spring, connector and actuating mechanism, the valve body upper end is equipped with the installation passageway that link up from top to bottom, valve body upper portion left side is equipped with the inlet with installation passageway intercommunication, the inboard and the connector upper portion outside fixed mounting of installation passageway lower part corresponding inlet below position are in the same place, the connector lower extreme is equipped with the liquid outlet that link up from top to bottom, be equipped with the valve ball in the installation passageway corresponding connector top position, valve ball lower part and connector upper end set up and be equipped with compression spring, valve body upside fixed mounting has the actuating mechanism that can make the valve ball close the liquid outlet after moving down.
2. The high-pressure stop valve of the oil well pipe water pressure testing machine according to claim 1, wherein the driving mechanism comprises a gas-liquid pressure cylinder, the lower part of the gas-liquid pressure cylinder is fixedly installed with the upper side of the valve body, the outer side of the lower part of a piston rod of the gas-liquid pressure cylinder is sleeved on the inner side of the upper part of the installation channel in a sealing way, and the lower end of the piston rod of the gas-liquid pressure cylinder is propped against the outer side of the upper part of the valve ball.
3. The high-pressure stop valve of the oil well pipe water pressure testing machine according to claim 2, wherein the center of the lower end of the piston rod of the gas-liquid pressurizing cylinder is provided with a limiting groove with a downward opening, and the outer side of the upper part of the valve ball is propped against the inner side of the lower end of the limiting groove.
4. The high-pressure stop valve of the oil well pipe water pressure testing machine according to claim 1, 2 or 3, wherein the mounting channel comprises a first straight hole section, a taper hole section, a second straight hole section, a third straight hole section and a screw hole section which are sequentially communicated from top to bottom, the taper hole section is in a conical shape with a large upper part and a small lower part, the inner diameters of the second straight hole section, the third straight hole section and the screw hole section are gradually increased, the lower part of the liquid inlet is communicated with the taper hole section, the upper part of the liquid inlet is communicated with the lower part of the first straight hole section, a piston rod of the gas-liquid booster cylinder is hermetically sleeved in the first straight hole section, the upper part of the connector is screwed in the screw hole section, the inner side of the upper part of the connector is provided with a mounting step surface, the third straight hole section corresponding to the upper end position of the connector is internally sealed and sleeved with a circular valve seat, the lower end of the compression spring is mounted on the mounting step surface after passing through the inner side of the valve seat, and the valve ball moves downwards and is in sealing contact with the inner side of the upper end of the valve seat.
5. The high-pressure stop valve of oil well pipe water pressure testing machine according to claim 4, wherein the inner wall of the upper part of the first straight hole section is provided with a first annular groove, and a guide belt is arranged in the first annular groove.
6. The high-pressure stop valve of the oil well pipe water pressure testing machine according to claim 5, wherein at least one second annular groove is arranged on the inner wall of the first straight hole section at an upper and lower interval corresponding to the position between the first annular groove and the upper part of the valve ball, and a sealing element in sealing contact with the outer side of a piston rod of the gas-liquid pressurizing cylinder is arranged in each second annular groove.
7. The high-pressure stop valve of the oil well pipe water pressure testing machine according to claim 1 or 2 or 3 or 5 or 6, wherein a mounting ring table with a space is fixed between the upper side and the lower side of the valve body at the outer side of the lower part of the connecting body, and at least one collecting port which is gradually narrowed from inside to outside and communicated with the liquid outlet is distributed at the outer side of the mounting ring table at intervals along the circumferential direction.
8. The high-pressure stop valve of oil well pipe water pressure testing machine according to claim 4, wherein a mounting ring table with a space is fixed between the upper side of the lower part of the connecting body and the lower side of the valve body, and at least one collecting port which is gradually narrowed from inside to outside and communicated with the liquid outlet is distributed on the outer side of the mounting ring table along the circumferential direction at intervals.
9. The high-pressure stop valve of the oil well pipe water pressure testing machine according to claim 7, wherein the outer side of the lower end of the connecting body corresponding to the position below the collecting port is provided with connecting threads; or/and the space between the upper end of the mounting ring table and the lower end of the valve body is 1-2 mm.
10. The high-pressure stop valve of the oil well pipe water pressure testing machine according to claim 8, wherein the outer side of the lower end of the connecting body corresponding to the position below the collecting port is provided with connecting threads; or/and the space between the upper end of the mounting ring table and the lower end of the valve body is 1-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323212561.1U CN221120954U (en) | 2023-11-28 | 2023-11-28 | High-pressure stop valve of oil well pipe water pressure testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323212561.1U CN221120954U (en) | 2023-11-28 | 2023-11-28 | High-pressure stop valve of oil well pipe water pressure testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221120954U true CN221120954U (en) | 2024-06-11 |
Family
ID=91367575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323212561.1U Active CN221120954U (en) | 2023-11-28 | 2023-11-28 | High-pressure stop valve of oil well pipe water pressure testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221120954U (en) |
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2023
- 2023-11-28 CN CN202323212561.1U patent/CN221120954U/en active Active
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