CN215908396U - Intelligent pressure stabilizing switch device for natural gas wellhead - Google Patents
Intelligent pressure stabilizing switch device for natural gas wellhead Download PDFInfo
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- CN215908396U CN215908396U CN202120416569.1U CN202120416569U CN215908396U CN 215908396 U CN215908396 U CN 215908396U CN 202120416569 U CN202120416569 U CN 202120416569U CN 215908396 U CN215908396 U CN 215908396U
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Abstract
The utility model provides an intelligent pressure stabilizing switch device for a natural gas wellhead, which comprises: the flexible valve comprises a shell, a valve body, a flexible valve core assembly and a valve box; the side wall of the shell is provided with an air inlet port, the upper end of the shell is provided with an installation port, and the lower end of the shell is provided with an air outlet port; the valve body is sleeved into the shell from the mounting port, the lower end of the valve body is connected with the inner end of the air outlet port, and a conical valve seat is arranged in the air outlet port; the side wall of the valve body is provided with an air inlet valve hole which is communicated with the air inlet port; the flexible valve core assembly is assembled in the valve body in a sliding and sealing mode, and the lower end of the flexible valve core assembly can plug the upper port of the conical valve seat; the valve box is fixedly connected to the upper end of the valve body, a valve core driving mechanism is arranged in the valve box, a valve rod is longitudinally arranged in the valve core driving mechanism, and the valve rod downwards penetrates through the valve box to be connected with the upper end of the flexible valve core assembly; wherein, be provided with output pressure detection device on the port of giving vent to anger of casing, be provided with input pressure detection device on the port of admitting air of casing.
Description
Technical Field
The utility model belongs to the technical field of natural gas well exploitation, and particularly relates to an intelligent pressure stabilizing switch device for a natural gas well mouth.
Background
The functions of wellhead regulating and controlling devices in most countries producing oil and gas in the world are basically the same, namely a well opening and closing function, a pressure regulating function and a safety protection function, and corresponding control objects are a production gate valve, a needle valve, a diaphragm valve and an emergency cut-off valve respectively. At present, a part of gas production areas in China carry out wireless remote control on well closing and opening, technological parameter regulation and control and a well mouth safety protection device respectively, a large number of tests and applications are carried out particularly on the Su-Li gas field in China, the work of a high-pressure natural gas well mouth gate valve is controlled remotely respectively, the production gate valve and the well mouth cut-off valve are only in two states of being completely opened or completely closed and cannot be used for regulating the pressure of an external transmission pipeline, and the needle valve can regulate the pressure but cannot be used for opening and closing the well. The remote control of the four gate valves of the high-pressure natural gas well is high in cost, large in signal mutual interference and complex in operation.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is an object of the present invention to provide an intelligent pressure stabilizing switchgear for a natural gas wellhead that overcomes the above problems or at least partially solves or alleviates the above problems.
The utility model provides an intelligent pressure stabilizing switch device for a natural gas wellhead, which comprises:
the air inlet port is formed in the side wall of the shell, the mounting port is formed in the upper end of the shell, the air outlet port is formed in the lower end of the shell, and the mounting port is longitudinally communicated with the air outlet port;
the valve body, the lower extreme of valve body is the cylindric, the valve body is followed the installing port cover is gone into in the casing, the lower extreme of valve body with the inner of the port of giving vent to anger is connected, be provided with the inlet valve hole on the lateral wall of valve body, the inlet valve hole with the inlet port switches on mutually, be provided with the conical valve seat in the lower port of valve body.
The flexible valve core assembly is assembled in the valve body in a sliding and sealing mode, and the lower end of the flexible valve core assembly can block the upper port of the conical valve seat;
the valve box is fixedly connected to the upper end of the valve body, a valve core driving mechanism is arranged in the valve box, a valve rod is longitudinally arranged in the valve core driving mechanism, and the valve rod downwards penetrates through the valve box to be connected with the upper end of the flexible valve core assembly and can drive the flexible valve core assembly to move up and down in the valve body;
the pressure sensor comprises a shell, an air inlet and an air outlet, wherein an output pressure detection device is arranged on the air outlet of the shell, and an input pressure detection device is arranged on the air inlet of the shell.
The utility model also has the following optional features.
Optionally, the flexible valve core assembly comprises:
the upper part of the valve core sleeve is connected with the lower end of the valve rod, and a spring is fixed in the valve core sleeve;
and the valve core is arranged in the valve core sleeve in a sliding manner, and the upper end of the valve core is contacted with the spring.
Optionally, a limit slot is formed in the side wall of the valve core, a limit pin is transversely arranged inside the valve core sleeve, and the limit pin transversely penetrates through the limit slot.
Optionally, the poppet driving mechanism includes:
the worm wheel is transversely arranged in the valve box and is in threaded fit with the valve rod through a central screw hole;
two ends of the worm respectively transversely penetrate through two sides of the valve box, and the worm is meshed with the worm wheel;
the servo motor is fixed on one side of the valve box, and a main shaft of the servo motor is in transmission connection with one end of the worm.
Optionally, the worm gear further comprises a hand wheel, and the hand wheel is arranged at the other end of the worm.
Optionally, the lower side of the valve box is provided with a sliding hole, and the side wall of the valve rod is in sliding sealing fit with the sliding hole.
Optionally, the upper end of the valve rod penetrates through the upper side wall of the valve box, an upper stroke limiting plate and a lower stroke limiting plate are arranged on the upper portion of the valve rod, a proximity switch is arranged on the valve box, and the proximity switch extends into the space between the upper stroke limiting plate and the lower stroke limiting plate.
The utility model has the beneficial effects that:
the intelligent pressure stabilizing switching device for the natural gas wellhead adopts the remotely controllable valve core driving mechanism to drive the flexible valve core assembly to move in the valve body, so that the flexible valve core assembly can block or release the upper port of the conical valve seat at the lower end of the valve body, the closing and the communication between the side valve hole and the lower port of the valve body are realized, meanwhile, the air pressure of the air inlet port of the shell can be detected through the input pressure detection device, the air pressure of the air outlet port of the shell is detected through the output pressure detection device, the Internet of things platform can automatically perform the stopping action according to the feedback of the pressure difference between the side valve hole and the lower port, and a worker can remotely control the pressure of the air outlet port of the shell through the Internet of things platform; because every well head only needs a remote control valve body can carry out switching, end and accent and join in marriage the function, its remote control is with low costs, does not have signal interference between the same well head, easy operation.
Drawings
FIG. 1 is a schematic diagram of a full-section structure of an embodiment of the intelligent pressure-stabilizing switch device for a natural gas wellhead in an open state;
fig. 2 is a schematic diagram of a full-section structure of an embodiment of the intelligent pressure-stabilizing switch device for the natural gas wellhead in a closed state.
In the above figures: 1, a shell; 101 an air inlet port; 102 an air outlet port; 2, a conical valve seat; 3, a valve body; 301 an inlet valve bore; 4, a valve box; 401, sliding holes; 5, a valve rod; 501, an upper stroke limit plate; 502 lower stroke limiting plate; 6 outputting a pressure detection device; 7 inputting a pressure detection device; 8, a valve core sleeve; 9, a spring; 10 a valve core; 1001 limit slot holes; 11, a limiting pin; 12 a worm gear; 13 a worm; 14 servo motor; 15 hand wheel; 16 proximity switch.
The utility model will be further explained in detail with reference to the drawings and the embodiments;
Detailed Description
Example 1
Referring to fig. 1 and 2, an embodiment of the present invention provides an intelligent pressure stabilizing switching device for a natural gas wellhead, including: the flexible valve core assembly comprises a shell 1, a valve body 3, a flexible valve core assembly and a valve box 4; an air inlet port 101 is formed in the side wall of the shell 1, an installation port is formed in the upper end of the shell 1, an air outlet port 102 is formed in the lower end of the shell 1, and the installation port and the air outlet port 102 are longitudinally communicated; the lower end of the valve body 3 is cylindrical, the valve body 3 is sleeved into the shell 1 from the mounting port, the lower end of the valve body 3 is connected with the inner end of the air outlet port 102, and a conical valve seat 2 is arranged in the air outlet port 102; the side wall of the valve body 3 is provided with an air inlet valve hole 301, and the air inlet valve hole 301 is communicated with the air inlet port 101; the flexible valve core assembly is assembled in the valve body 3 in a sliding and sealing mode, and the lower end of the flexible valve core assembly can block the upper port of the conical valve seat 2; the valve box 4 is fixedly connected to the upper end of the valve body 3, a valve core driving mechanism is arranged in the valve box 4, a valve rod 5 is longitudinally arranged in the valve core driving mechanism, and the valve rod 5 downwards penetrates through the valve box 4 to be connected with the upper end of the flexible valve core assembly and can drive the flexible valve core assembly to move up and down in the valve body 3; an output pressure detection device 6 is arranged on the outlet port 102 of the housing 1, and an input pressure detection device 7 is arranged on the inlet port 101 of the housing 1.
An air outlet port 102 of the shell 1 is communicated with a natural gas external pipeline, and an air inlet port 101 is communicated with a natural gas wellhead; when a natural gas wellhead and a natural gas output pipeline need to be communicated, the flexible valve core assembly is pulled upwards through the valve rod 5 by the platform control valve core driving mechanism of the internet of things, the lower end of the elastic valve core assembly is separated from the upper end port of the conical valve seat 2, and produced gas in a natural gas well enters the gas inlet valve hole 301 and the valve cavity of the valve body 3 from the gas inlet port 101 of the shell 1 and then enters the output pipeline from the lower end port and the gas outlet port 102 of the valve body 3.
When the staff need close natural gas well, the accessible thing networking platform control case actuating mechanism pushes away flexible case subassembly down, makes the lower extreme shutoff cone valve seat 2's of flexible case subassembly the last port, realizes ending the function to defeated pipeline outward.
When the pressure of the external transmission pipeline needs to be adjusted, the flexible valve core assembly is pushed downwards only by controlling the valve core driving mechanism through the platform of the internet of things, the side wall portion of the flexible valve core assembly blocks the air inlet valve hole 301, the opening degree of the air inlet valve hole 301 is changed, the pressure of a natural gas wellhead is changed, meanwhile, a worker can also monitor related pressure in real time through the output pressure detection device 6 at the air outlet port 102 of the shell 1, and the position of the flexible valve core assembly is corrected in real time through the valve core driving mechanism according to pressure feedback, so that the function of adjusting the pressure in the external transmission pipeline is achieved.
When the external pipeline is broken, the output pressure detection device 6 detects that the pressure is rapidly reduced, and at the moment, after the Internet of things platform receives a pressure drop signal, the flexible valve core assembly is rapidly pushed downwards by the automatic control remote control valve core driving mechanism, so that the flexible valve core assembly completely blocks the upper port of the conical valve seat 2, and the natural gas wellhead and the natural gas external pipeline are guaranteed to be kept blocked.
Example 2
Referring to fig. 1 and 2, on the basis of embodiment 1, the flexible valve core assembly comprises: the valve core comprises a valve core sleeve 8 and a valve core 10, wherein the upper part of the valve core sleeve 8 is connected with the lower end of the valve rod 5, and a spring 9 is fixed in the valve core sleeve 8; the valve core 10 is slidably disposed in the valve core sleeve 8, and the upper end of the valve core 10 is in contact with the spring 9.
The valve core sleeve 8 in the flexible valve core assembly is connected with the lower end of the valve rod 5, the valve core 10 is assembled in the valve core sleeve 8 in a sliding mode, a spring 9 is arranged between the valve core 10 and the inner end of the valve core sleeve 8, the spring 9 provides elasticity for the valve core 10 and the inner end of the valve core sleeve 8, the pressure when the valve core 10 blocks the upper port of the conical valve seat 2 can be guaranteed to be buffered by compressing the spring 9, and therefore relevant parts are prevented from being greatly impacted.
Example 3
Referring to fig. 1 and 2, on the basis of embodiment 2, a limit long hole 1001 is provided on a side wall of a valve core 10, a limit pin 11 is transversely provided inside the valve core sleeve 8, and the limit pin 11 transversely penetrates through the limit long hole 1001.
The limiting pin 11 inside the valve core sleeve 8 transversely penetrates through the limiting long hole 1001 on the valve core 10, which is equivalent to limiting the movable distance between the valve core 10 and the valve core sleeve 8 relative to the valve core 10, and also limiting the compression length of the spring 9, and adjusting the buffering force of the spring 9, when the valve core driving mechanism lifts the valve core sleeve 8 and the valve core 10 upwards through the valve rod 5, the limiting pin 11 in the valve core sleeve 8 can lift the valve core 10 upwards after moving for a certain distance, so that the lower end of the valve core 10 is completely separated from the upper end port of the conical valve seat 2, and the complete conduction of a natural gas wellhead communicated with the gas inlet port 101 of the shell 1 and a natural gas external pipeline communicated with the gas outlet port 102 of the shell 1 is realized.
Example 4
Referring to fig. 1 and 2, on the basis of embodiment 1, the spool drive mechanism includes: the valve rod assembly comprises a worm wheel 12, a worm 13 and a servo motor 14, wherein the worm wheel 12 is transversely arranged in the valve box 4, and the worm wheel 12 is in threaded fit with the valve rod 5 through a central screw hole; two ends of the worm 13 respectively transversely penetrate through two sides of the valve box 4, and the worm 13 is meshed with the worm wheel 12; the servo motor 14 is fixed on one side of the valve box 4, and a main shaft of the servo motor 14 is in transmission connection with one end of the worm 13.
The servo motor 14 can drive the worm 13 to rotate in situ, the worm 13 drives the turbine 12 to rotate in situ, and the valve rod 5 is driven to move by the lead screw pair when the turbine 12 rotates in situ, so that the valve rod 5 synchronously drives the flexible valve core assembly to longitudinally move, and the automatic pressure regulating or emergency cut-off function is realized.
Example 5
Referring to fig. 1 and 2, on the basis of embodiment 4, a hand wheel 15 is further included, and the hand wheel 15 is arranged at the other end of the worm 13.
When the hand wheel 15 rotates, the worm 13 drives the turbine 12 to rotate on site, and when the turbine 12 rotates on site, the lead screw pair drives the valve rod 5 to rotate, so that the manual pressure regulating or emergency cut-off function is realized.
Example 6
Referring to fig. 1 and 2, in embodiment 1, a slide hole 401 is provided on the lower side of the valve box 4, and the side wall of the valve rod 5 is in sliding sealing fit with the slide hole 401.
The lower side of the valve box 4 is communicated with the upper end of the valve body 3 through a slide hole 401, and the side wall of the valve rod 5 is in sliding sealing fit with the side wall of the slide hole 401.
The inner side wall of the sliding hole 401 is provided with a sealing ring, and the side wall of the valve rod 5 is in sliding sealing fit with the sealing ring and the sliding hole 401, so that the valve rod 5 cannot leak air when moving longitudinally.
Example 7
Referring to fig. 1 and 2, on the basis of embodiment 1, the upper end of the valve rod 5 penetrates through the upper side wall of the valve box 4, the upper portion of the valve rod 5 is provided with an upper stroke limiting plate 501 and a lower stroke limiting plate 502, the valve box 4 is provided with a proximity switch 16, and the proximity switch 16 extends between the upper stroke limiting plate 501 and the lower stroke limiting plate 502.
A proximity switch 16 is arranged on the outer side of the upper end of the valve box 4, the proximity switch 16 is provided with an upper detection head and a lower detection head, an upper stroke limiting plate 501 and a lower stroke limiting plate 502 are arranged on the upper portion of the valve rod 5, when the valve core driving mechanism drives the valve rod 5 to move upwards to a limiting position, the upper stroke limiting plate 501 is detected by the lower detection head of the proximity switch 16, and the controller can control the valve core driving mechanism to stop driving the valve rod 5 to move upwards after receiving a signal of the lower detection head of the proximity switch 16; when the valve core driving mechanism drives the valve rod 5 to move downwards to the limit position, the upper detection head of the proximity switch 16 detects the lower stroke limit plate 502, and the controller can control the valve core driving mechanism to stop driving the valve rod 5 to move downwards after receiving a signal of the upper detection head of the proximity switch 16, so that the lower end of the flexible valve core assembly is prevented from impacting the upper port of the conical valve seat 2.
The above description is only for the 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 are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.
Claims (7)
1. The utility model provides a natural gas well head intelligence steady voltage switching device which characterized in that includes:
the air inlet structure comprises a shell (1), wherein an air inlet port (101) is formed in the side wall of the shell (1), an installation port is formed in the upper end of the shell (1), an air outlet port (102) is formed in the lower end of the shell (1), and the installation port is longitudinally communicated with the air outlet port (102);
the lower end of the valve body (3) is cylindrical, the valve body (3) is sleeved into the shell (1) from the mounting opening, the lower end of the valve body (3) is connected with the inner end of the air outlet port (102), an air inlet valve hole (301) is formed in the side wall of the valve body (3), the air inlet valve hole (301) is communicated with the air inlet port (101), and a conical valve seat (2) is arranged in the lower end opening of the valve body (3);
the flexible valve core assembly is assembled in the valve body (3) in a sliding and sealing mode, and the lower end of the flexible valve core assembly can block the upper port of the conical valve seat (2);
the valve box (4) is fixedly connected to the upper end of the valve body (3), a valve core driving mechanism is arranged in the valve box (4), a valve rod (5) is longitudinally arranged in the valve core driving mechanism, and the valve rod (5) penetrates through the valve box (4) downwards to be connected with the upper end of the flexible valve core assembly and can drive the flexible valve core assembly to move up and down in the valve body (3);
the pressure control device comprises a shell (1), an air outlet port (102) of the shell (1) and an air inlet port (101) of the shell (1), wherein an output pressure detection device (6) is arranged on the air outlet port, and an input pressure detection device (7) is arranged on the air inlet port (101) of the shell (1).
2. The natural gas wellhead intelligent voltage stabilization switching device according to claim 1, wherein the flexible valve core assembly comprises:
the upper part of the valve core sleeve (8) is connected with the lower end of the valve rod (5), and a spring (9) is fixed in the valve core sleeve (8);
the valve core (10) is arranged in the valve core sleeve (8) in a sliding mode, and the upper end of the valve core (10) is in contact with the spring (9).
3. The intelligent pressure-stabilizing switch device for the natural gas wellhead according to claim 2, characterized in that a limiting long hole (1001) is arranged on the side wall of the valve core (10), a limiting pin (11) is transversely arranged inside the valve core sleeve (8), and the limiting pin (11) transversely penetrates through the limiting long hole (1001).
4. The intelligent pressure-stabilizing switching device for the natural gas wellhead as claimed in claim 1, wherein the valve core driving mechanism comprises:
the worm wheel (12), the said worm wheel (12) is set up in the said valve box (4) horizontally, the said worm wheel (12) cooperates with said valve stem (5) whorl through the central screw hole;
the two ends of the worm (13) respectively transversely penetrate through the two sides of the valve box (4), and the worm (13) is meshed with the worm wheel (12);
the servo motor (14), servo motor (14) are fixed one side of valve box (4), the main shaft of servo motor (14) with the one end transmission of worm (13) is connected.
5. The intelligent pressure-stabilizing switching device for the natural gas wellhead as claimed in claim 4, characterized by further comprising a hand wheel (15), wherein the hand wheel (15) is arranged at the other end of the worm (13).
6. The intelligent pressure-stabilizing switch device for the natural gas wellhead as claimed in claim 1, characterized in that a sliding hole (401) is formed in the lower side of the valve box (4), and the side wall of the valve rod (5) is in sliding sealing fit with the sliding hole (401).
7. The intelligent pressure-stabilizing switch device for the natural gas wellhead as claimed in claim 1, wherein the upper end of the valve rod (5) penetrates through the upper side wall of the valve box (4), an upper travel limit plate (501) and a lower travel limit plate (502) are arranged on the upper portion of the valve rod (5), a proximity switch (16) is arranged on the valve box (4), and the proximity switch (16) extends between the upper travel limit plate (501) and the lower travel limit plate (502).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120416569.1U CN215908396U (en) | 2021-02-25 | 2021-02-25 | Intelligent pressure stabilizing switch device for natural gas wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120416569.1U CN215908396U (en) | 2021-02-25 | 2021-02-25 | Intelligent pressure stabilizing switch device for natural gas wellhead |
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| Publication Number | Publication Date |
|---|---|
| CN215908396U true CN215908396U (en) | 2022-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120416569.1U Active CN215908396U (en) | 2021-02-25 | 2021-02-25 | Intelligent pressure stabilizing switch device for natural gas wellhead |
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| CN (1) | CN215908396U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117847246A (en) * | 2024-03-06 | 2024-04-09 | 普胜特能源（广汉）服务有限公司 | Throttling device and adjusting method thereof |
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2021
- 2021-02-25 CN CN202120416569.1U patent/CN215908396U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117847246A (en) * | 2024-03-06 | 2024-04-09 | 普胜特能源（广汉）服务有限公司 | Throttling device and adjusting method thereof |
| CN117847246B (en) * | 2024-03-06 | 2024-05-24 | 普胜特能源（广汉）服务有限公司 | Throttling device and adjusting method thereof |
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Effective date of registration: 20220428 Address after: 710018 room 11710, building D, Yinhe Huating, Weiyang District, Xi'an City, Shaanxi Province Patentee after: SHAANXI BAIHAO TECHNOLOGY DEVELOPMENT CO.,LTD. Address before: 710018 room 11710, building D, Yinhe Huating, Weiyang District, Xi'an City, Shaanxi Province Patentee before: Yang Dede |