CN218407387U - Differential pressure type constant pressure air release valve - Google Patents
Differential pressure type constant pressure air release valve Download PDFInfo
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- CN218407387U CN218407387U CN202222092291.4U CN202222092291U CN218407387U CN 218407387 U CN218407387 U CN 218407387U CN 202222092291 U CN202222092291 U CN 202222092291U CN 218407387 U CN218407387 U CN 218407387U
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Abstract
The utility model relates to a differential pressure type constant pressure air release valve, which comprises a valve body, a valve core and at least two pressure regulating components; the valve body is provided with an oil delivery channel; the valve core extends outwards from the oil delivery channel along the radial direction of the valve body so as to partially extend out of the valve body and is provided with a main body channel and a connecting channel, the main body channel is provided with an exhaust port, and at least two matching parts are arranged at intervals along the radial direction of the valve body; the main part passageway is located to two at least pressure regulating subassemblies, and sets up with two at least cooperation portions one-to-one, and each pressure regulating subassembly is including the elastic component and the sealing that resets, and the sealing sets up along the radial activity of valve body, and the elastic component that resets is used for providing drive power for the sealing that corresponds to make the sealing that corresponds can reset to the shutoff position from the deblocking position. The scheme can avoid the associated gas in the valve core from being frozen due to depressurization and low temperature of the associated gas; meanwhile, the volume occupied by the valve core in the oil conveying channel is reduced while the stability and the safety of exhaust are ensured, and the oil conveying efficiency of the valve body is improved.
Description
Technical Field
The utility model relates to an oil development technical field especially relates to a differential constant pressure bleed valve.
Background
With the development of economy and the progress of society, energy conservation becomes inevitable and social consensus. The associated gas generated by oil extraction in oil field is also recovered comprehensively.
The existing oil field control casing pressure uses a constant pressure air bleeder which is arranged between an exhaust outlet of an oil well casing and a single well mixed transportation pipeline, and when the oil well casing pressure exceeds a set value, the air bleeder is automatically opened to reduce the pressure; when the pressure drops to or below the set value, the valve is automatically closed. The valve body structure is arranged in an independent cavity, low temperature is difficult to disperse, freezing is easy to occur, and associated gas cannot be collected. In order to solve the problem that the exhaust valve body freezes, the exhaust valve body is generally arranged in an oil delivery valve communicated with an oil delivery pipeline so as to unfreeze the exhaust valve through the oil temperature.
For example, CN 202731839U discloses a pressure differential type antifreezing constant pressure relief valve, which delivers oil through a passage in a valve body and provides a pressure regulating valve for discharging associated gas in the valve body to achieve defrosting of the pressure regulating valve. However, the pressure regulating valve is provided with a shell, the structure is complex, and when the pressure regulating valve is integrally arranged in the valve body, the occupied space is large, so that the oil output efficiency in the valve body is reduced.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide a differential pressure type constant pressure relief valve, which is used to solve the technical problems of the prior art that the pressure regulating valve has a complicated structure, occupies a large space when being disposed in the valve body, and reduces the oil output efficiency in the valve body.
The utility model provides a differential constant pressure relief valve for oil development, this differential constant pressure relief valve includes:
the valve body is provided with an oil conveying channel, and the oil conveying channel is used for communicating an oil conveying pipeline and an oil outlet pipeline;
the valve core extends outwards from the oil delivery channel along the radial direction of the valve body so as to partially extend out of the valve body, and is provided with a main body channel positioned in the oil delivery channel and a connecting channel positioned outside the valve body and communicated with the main body channel; and (c) a second step of,
two at least pressure regulating subassemblies are located the main part passageway, and with two at least cooperation portion one-to-ones set up, each the pressure regulating subassembly is including elastic component and the sealing of resetting, the sealing is followed the radial activity of valve body sets up, in order to have and be close to the correspondence the shutoff position of cooperation portion and keep away from the correspondence the deblocking position of cooperation portion, the sealing is located separate during the shutoff position the main part passageway, so that the interface channel with the oil transportation passageway cuts off mutually, just the sealing is located switch on during the deblocking position the main part passageway, so that the interface channel with the oil transportation passageway is linked together, the elastic component that resets is used for giving the correspondence the sealing provides drive power, so that correspond the sealing can certainly the deblocking position resets to the shutoff position.
Optionally, the fitting part is an annular boss formed by protruding the inner wall of the main body passage;
the sealing part is a valve ball matched with the corresponding annular boss, and the valve ball is positioned on one side, far away from the connecting channel, of the corresponding annular boss.
Optionally, a valve ball is arranged corresponding to the exhaust port to form an output valve ball, and the diameter of the output valve ball is matched with the inner diameter of the main body passage so as to block the exhaust port from the main body passage in the blocking position;
the annular boss corresponding to the output valve ball is positioned on one side of the exhaust port close to the connecting channel.
Optionally, an end of the main body passage opposite to the connecting passage extends outwards along a radial direction of the valve body to form a mounting passage partially located outside the valve body;
the reset elastic piece corresponding to the output valve ball is arranged in the mounting channel;
the differential pressure type constant pressure air release valve further comprises an adjusting handle, one end of the adjusting handle is in threaded connection with the part, outside the valve body, of the installation channel, and is abutted against the elastic resetting piece so as to adjust the compression degree of the elastic resetting piece during radial movement of the valve body.
Optionally, the exhaust port is provided in plurality, and the exhaust ports are arranged at intervals along the circumferential direction of the main body passage and correspond to the output valve ball.
Optionally, the valve ball far away from the exhaust port is an input valve ball, the diameter of the input valve ball is smaller than the inner diameter of the main body channel, and a slide block is connected to one side close to the exhaust port;
and the reset elastic piece corresponding to the input valve ball is arranged on one side of the sliding block close to the exhaust port.
Optionally, the return elastic member is a compression spring.
Optionally, a check valve is arranged at one end of the oil transportation channel, which is used for being communicated with the oil outlet pipeline; and/or the presence of a gas in the atmosphere,
the valve body and the valve core are integrally formed.
Optionally, the differential pressure type constant pressure relief valve further comprises a regulating pipeline, one end of the regulating pipeline is used for communicating the oil conveying pipeline, the other end of the regulating pipeline is communicated with and extends into the oil conveying channel, and the length of the extending oil conveying channel is adjustable.
Optionally, the adjusting pipeline is in threaded connection with the inner wall of the oil delivery channel.
Compared with the prior art, the utility model provides a differential constant pressure bleed valve is when using, with the both ends of the oil transportation passageway of valve body communicate defeated oil pipe way and oil outlet pipe way respectively to communicate the interface channel and the sheathed tube exhaust pipe way of case. The oil in the oil pipeline flows to the oil outlet pipeline through the oil conveying channel of the valve body, and meanwhile, high-pressure associated gas in the exhaust pipeline pushes the sealing part to move towards the direction far away from the matching part so as to move to the unsealing position, so that the connecting channel is communicated with the oil conveying channel, and the associated gas in the exhaust pipeline is output and collected along with the oil. Because the main part passageway is located in the oil transportation passageway, can unfreeze the main part passageway through the oil temperature in the oil transportation passageway, avoid the associated gas decompression in the case and self temperature to cause and freeze, improve associated gas collection efficiency. Simultaneously, because the case sets up along the radial extension of valve body, and only the part that the main part passageway corresponds is arranged in the oil transportation passageway, and two at least pressure regulating subassemblies also are the interval along the radial of valve body and locate in the main part passageway to when guaranteeing exhaust stability and security, make the structure of case compacter, reduce the volume that the case took in the oil transportation passageway, make the oil transportation passageway oil transportation efficiency of valve body can improve, and then improve the collection efficiency of oil and associated gas.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, and to implement the technical means in accordance with the content of the description, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic structural view of an embodiment of a differential pressure type constant pressure bleed valve provided by the present invention;
FIG. 2 is a schematic structural view of the valve cartridge and pressure regulating assembly of FIG. 1;
FIG. 3 is an enlarged schematic view of FIG. 1 at A;
FIG. 4 is an enlarged schematic view at B of FIG. 2;
FIG. 5 is a schematic view showing the connection of the differential pressure type constant pressure air release valve of FIG. 1 with the oil pipeline, the oil outlet pipeline and the casing.
Description of the reference numerals:
100-differential pressure type constant pressure air release valve, 1-valve body, 11-oil delivery channel, 2-valve core, 21-main body channel, 211-matching part, 2111-annular boss, 2112-sealing ring, 21 a-air outlet, 212-installation channel, 22-connection channel, 3-pressure regulating component, 31-reset elastic component, 311-pressure spring, 32-sealing part, 321-valve ball, 322-output valve ball, 323-input valve ball, 4-regulating handle, 5-sliding block, 6-one-way valve, 7-regulating pipeline, 200-sleeve pipe, 210-oil delivery pipeline, 220-oil outlet pipeline and 230-exhaust pipeline.
Detailed Description
The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.
Referring to fig. 1 to 5, the differential pressure type constant pressure relief valve 100 is used for oil exploitation, and includes a valve body 1, a valve core 2, and at least two pressure regulating assemblies 3; the valve body 1 is provided with an oil delivery passage 11, and the oil delivery passage 11 is used for communicating an oil delivery pipeline 210 and an oil outlet pipeline 220; the valve core 2 extends outwards from the oil delivery channel 11 along the radial direction of the valve body 1 so as to partially extend out of the valve body 1, and is provided with a main body channel 21 positioned on the oil delivery channel 11 and a connecting channel 22 positioned outside the valve body 1 and communicated with the main body channel 21, the main body channel 21 is provided with an exhaust port 21a communicated with the oil delivery channel 11, at least two matching parts 211 are arranged along the radial direction of the valve body 1 at intervals, the at least two matching parts 211 are positioned between the exhaust port 21a and the connecting channel 22, and the connecting channel 22 is used for communicating with an exhaust pipeline 230 of the sleeve 200; at least two pressure regulating subassemblies 3 locate main part passageway 21, and set up with at least two cooperation portions 211 one-to-one, each pressure regulating subassembly 3 is including restoring to the throne elastic component 31 and sealing part 32, sealing part 32 sets up along the radial activity of valve body 1, in order to have the shutoff position that is close to the cooperation portion 211 that corresponds, and keep away from the deblocking location of corresponding cooperation portion 211, main part passageway 21 is separated when sealing part 32 is located the shutoff position, so that connecting channel 22 separates with oil transportation passageway 11 mutually, and main part passageway 21 is switched on when sealing part 32 is located the deblocking location, so that connecting channel 22 is linked together with oil transportation passageway 11, elastic component 31 resets is used for providing drive power for corresponding sealing part 32, so that corresponding sealing part 32 can reset to the shutoff position from the deblocking location.
The utility model provides a differential pressure formula level pressure bleed valve 100 when using, communicates defeated oil pipe way 210 and goes out oil pipe way 220 respectively with the both ends of the defeated oil pipe way 11 of valve body 1 to communicate the interface channel 22 of case 2 with the exhaust pipe way 230 of sleeve pipe 200. The oil in the oil delivery pipeline 210 flows to the oil outlet pipeline 220 through the oil delivery channel 11 of the valve body 1, and simultaneously the high-pressure associated gas in the exhaust pipeline 230 pushes the sealing part 32 to move towards the direction away from the matching part 211 so as to move to the unsealing position, so that the connecting channel 22 is communicated with the oil delivery channel 11, and the associated gas in the exhaust pipeline 230 is output and collected together with the oil. Because main part passageway 21 is located in oil delivery passageway 11, and oil has certain temperature, and then can unfreeze main part passageway 21 through the oil temperature in the oil delivery passageway 11, avoid the associated gas depressurization in the case 2 and self low temperature to cause and freeze, guarantee that the exhaust is smooth and easy, improve the associated gas collection efficiency. Simultaneously, because case 2 sets up along the radial extension of valve body 1, and only the part that main part passageway 21 corresponds is arranged in oil transportation passageway 11, and two at least pressure regulating subassembly 3 are the interval and locate in main part passageway 21 also along the radial of valve body 1, thereby when guaranteeing exhaust stability and security, make case 2's structure compacter, be convenient for the temperature transmission, and reduce the volume that case 2 took in oil transportation passageway 11, make oil transportation passageway 11 oil transportation efficiency of valve body 1 improve, and then improve the collection efficiency of oil and associated gas.
In the present embodiment, two fitting portions 211 are provided in the main body passage 21 at intervals in the radial direction of the valve body 1, and two fitting portions 211 of the pressure regulating assembly 3 are provided corresponding to the fitting portions 211. In addition, in one embodiment, the valve body 1 and the valve core 2 are integrally formed, so that the number of integral parts is reduced, the assembly efficiency is improved, and meanwhile, the oil temperature is conveniently transmitted to be thawed. In the drawings, the radial direction of the valve body 1 is denoted by F.
Further, the fitting portion 211 is an annular boss 2111 formed by protruding the inner wall of the main body passage 21; the sealing portion 32 is a ball 321 that fits into a corresponding annular boss 2111, and the ball 321 is located on a side of the corresponding annular boss 2111 away from the connecting passage 22. In this scheme, through the cooperation of valve ball 321 and annular boss 2111 for when valve ball 321 is located the shutoff position, can closely cooperate with annular boss 2111, avoid the oil among the oil transportation passageway 11 to flow back to main part passageway 21 in, and then avoid the oil to cause the erosion to pressure regulating assembly 3, improve exhaust stability and security, and simple structure is reliable. In addition, in this embodiment, a sealing ring 21112 is further provided at an end of the annular boss 2111 close to the valve ball 321 to improve sealing performance.
Further, a ball 321 is disposed corresponding to the exhaust port 21a to form an output ball 322, the diameter of the output ball 322 is adapted to the inner diameter of the main body passage 21 to block the exhaust port 21a from the main body passage 21 when in the blocking position; an annular boss 2111 corresponding to the output valve ball 322 is located on the side of the exhaust port 21a near the connecting passage 22. In this embodiment, the output valve ball 322 can block the exhaust port 21a from the main body passage 21 when in the blocking position, and can also be matched with the corresponding annular boss 2111 to block, thereby further preventing the oil in the oil transportation passage 11 from flowing back to the main body passage 21, and prolonging the service life of the differential pressure type constant pressure release valve 100.
Specifically, an end of the main body passage 21 opposite to the connection passage 22 is provided extending outward in the radial direction of the valve body 1 to form a mounting passage 212 partially outside the valve body 1; a return elastic member 31 corresponding to the output valve ball 322 is provided in the mounting passage 212; the differential pressure type constant pressure release valve 100 further comprises an adjusting handle 4, one end of the adjusting handle 4 is screwed on the part of the installation channel 212 outside the valve body 1 and abuts against the elastic reset piece 31 so as to adjust the compression degree of the elastic reset piece 31 when moving along the radial direction of the valve body 1. This scheme can be through 4 activities of drive adjustment handle to the adjustment elastic component 31 that resets's compression degree, and then change the drive power of elastic component 31 to valve ball 321 that resets, also can be according to the actual production condition, adjustment drive valve ball 321 from the required power of blocking position activity to deblocking position, make the collection of associated gas more nimble.
Specifically, in the present embodiment, the exhaust port 21a is provided in plurality, and the plurality of exhaust ports 21a are provided at intervals in the circumferential direction of the body passage 21, and correspond to the output valve ball 322. This scheme is through setting up a plurality of gas vents 21a to improve the efficiency that associated gas got into oil transportation passageway 11 from main part passageway 21, and then improve the collection efficiency of oil and associated gas. In addition, it should be noted that the number of the exhaust ports 21a is not particularly limited, and three exhaust ports may be provided, or four exhaust ports may be provided, in this embodiment, two exhaust ports 21a are provided, and the two exhaust ports 21a are oppositely provided at two sides of the main body passage 21 in the radial direction.
Further, the valve ball 321 far away from the exhaust port 21a is an input valve ball 323, the diameter of the input valve ball 323 is smaller than the inner diameter of the main body passage 21, and one side close to the exhaust port 21a is connected with the slide block 5; a return elastic member 31 corresponding to the input valve ball 323 is provided on the side of the slider 5 near the exhaust port 21 a. The diameter of the input valve ball 323 is set to be smaller than the inner diameter of the main body passage 21, so that associated gas flows from the connecting passage 22 to the main body passage 21 when the valve ball 321 moves to the unsealing position; meanwhile, the slide block 5 is arranged on one side of the input valve ball 323, which is far away from the connecting channel 22, so that the input valve ball 323 can be guided, and the plugging accuracy is improved. Specifically, in the present embodiment, the return elastic member 31 is a compression spring 311.
Further, in the present embodiment, the end of the oil delivery channel 11 for communicating with the oil outlet pipeline 220 is provided with a check valve 6. It is understood that the output direction of the check valve 6 coincides with the flow direction of oil, and the check valve 6 is disposed on the side of the spool 2 close to the oil outlet line 220. It should be noted that the check valve 6 is arranged at one end of the oil transportation channel 11, which is communicated with the oil outlet pipeline 220, so that when the pumping unit moves downwards to cause a negative pressure area, the check valve 6 can partition the oil transportation channel 11 from front to back, thereby avoiding oil backflow; when the pressure of the side of the check valve 6 far away from the oil pipeline 210 is reduced, the low-pressure associated gas in the sleeve 200 also enters the oil outlet pipeline 220 from the valve core 2, and the collected low-pressure associated gas is pressurized due to the pressure increase when the sucker rod goes upward, so that the recovery of the associated gas in the sleeve 200 is completed.
Further, in this embodiment, the differential pressure type constant pressure relief valve 100 further includes a regulating pipeline 7, one end of the regulating pipeline 7 is used for communicating with the oil transportation pipeline 210, and the other end of the regulating pipeline is communicated with and extends into the oil transportation channel 11, and the length of the regulating pipeline extending into the oil transportation channel 11 is adjustable. So, defeated oil pipe way 210, adjusting pipe way 7 and oil transportation passageway 11 communicate in proper order, when having solved the field installation, the unmatched problem of valve body 1 length and defeated oil pipe way 210 distance, and this scheme can be adjusted adjusting pipe way 7 according to actual demand and stretch into the length of oil transportation passageway 11, improves the commonality. Specifically, in this embodiment, the adjusting pipeline 7 is connected with the inner wall of the oil transportation channel 11 in a threaded manner, so that the length adjustment operation of the adjusting pipeline 7 is simple and convenient, and meanwhile, the sealing performance between the adjusting pipeline 7 and the valve body 1 is ensured to a certain extent.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (10)
1. A differential pressure type constant pressure relief valve is used for oil exploitation and is characterized by comprising:
the valve body is provided with an oil conveying channel, and the oil conveying channel is used for communicating an oil conveying pipeline and an oil outlet pipeline;
the valve core extends outwards from the oil delivery channel along the radial direction of the valve body so as to partially extend out of the valve body, and is provided with a main body channel positioned in the oil delivery channel and a connecting channel positioned outside the valve body and communicated with the main body channel; and the number of the first and second groups,
at least two pressure regulating subassemblies are located the main part passageway, and with two at least cooperation portion one-to-ones set up, each the pressure regulating subassembly is including elastic component and the sealing that resets, the sealing is followed the radial activity of valve body sets up, in order to have and be close to the correspondence the shutoff position of cooperation portion and keep away from the correspondence the deblocking position of cooperation portion, the sealing is located separate during the shutoff position absolutely the main part passageway, so that the connecting channel with oil transportation passageway cuts off mutually, just the sealing is located switch on during the deblocking position the main part passageway, so that the connecting channel with oil transportation passageway is linked together, the elastic component that resets is used for corresponding the sealing provides drive power, so that correspond the sealing can certainly the deblocking position resets to the shutoff position.
2. The differential pressure type constant pressure air release valve according to claim 1, wherein the matching part is an annular boss convexly formed on the inner wall of the main body passage;
the sealing part is a valve ball matched with the corresponding annular boss, and the valve ball is positioned on one side, far away from the connecting channel, of the corresponding annular boss.
3. The differential pressure type constant pressure bleed valve as defined in claim 2, wherein a said valve ball is disposed corresponding to said exhaust port to form an output valve ball having a diameter adapted to an inner diameter of said main body passageway to block said exhaust port from said main body passageway in said blocking position;
the annular boss corresponding to the output valve ball is positioned on one side of the exhaust port close to the connecting channel.
4. The differential pressure type fixed pressure gas relief valve according to claim 3, wherein an end of the main body passage opposite to the connecting passage is extended outward in a radial direction of the valve body to form a mounting passage partially outside the valve body;
the reset elastic piece corresponding to the output valve ball is arranged in the mounting channel;
the differential pressure type constant pressure air release valve further comprises an adjusting handle, one end of the adjusting handle is in threaded connection with the part, outside the valve body, of the installation channel, and is abutted against the elastic resetting piece so as to adjust the compression degree of the elastic resetting piece during radial movement of the valve body.
5. The differential pressure type constant pressure purge valve according to claim 3, wherein said exhaust port is provided in plurality, and a plurality of said exhaust ports are provided at intervals along a circumferential direction of said main body passageway, and correspond to said outlet valve ball.
6. The differential pressure type constant pressure gas release valve according to claim 2, wherein the valve ball far away from the gas outlet is an input valve ball, the diameter of the input valve ball is smaller than the inner diameter of the main body passage, and a slide block is connected to one side close to the gas outlet;
and the reset elastic piece corresponding to the input valve ball is arranged on one side of the sliding block close to the exhaust port.
7. The differential pressure type constant pressure relief valve according to any one of claims 1 to 6, wherein the return elastic member is a compression spring.
8. The differential pressure type constant pressure relief valve according to claim 1, wherein one end of the oil transportation channel for communicating with the oil outlet pipeline is provided with a one-way valve; and/or the presence of a gas in the gas,
the valve body and the valve core are integrally formed.
9. The differential pressure type constant pressure relief valve according to claim 1, further comprising a regulating pipeline, wherein one end of the regulating pipeline is used for communicating with the oil transportation pipeline, the other end of the regulating pipeline is communicated with and extends into the oil transportation channel, and the length of the regulating pipeline extending into the oil transportation channel is adjustable.
10. The differential pressure type constant pressure air release valve according to claim 9, wherein the adjusting pipeline is connected with the inner wall of the oil transportation channel in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222092291.4U CN218407387U (en) | 2022-08-09 | 2022-08-09 | Differential pressure type constant pressure air release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222092291.4U CN218407387U (en) | 2022-08-09 | 2022-08-09 | Differential pressure type constant pressure air release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218407387U true CN218407387U (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222092291.4U Active CN218407387U (en) | 2022-08-09 | 2022-08-09 | Differential pressure type constant pressure air release valve |
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| CN (1) | CN218407387U (en) |
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- 2022-08-09 CN CN202222092291.4U patent/CN218407387U/en active Active
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