CN111472718A - Three-in-one switch adjusting device for natural gas well and adjusting method thereof - Google Patents
Three-in-one switch adjusting device for natural gas well and adjusting method thereof Download PDFInfo
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- CN111472718A CN111472718A CN202010248754.4A CN202010248754A CN111472718A CN 111472718 A CN111472718 A CN 111472718A CN 202010248754 A CN202010248754 A CN 202010248754A CN 111472718 A CN111472718 A CN 111472718A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/16—Control means therefor being outside the borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Abstract
The invention provides a three-in-one switch adjusting device for a natural gas well, which comprises: the remote control valve comprises a shell, a valve body, an adjusting cylinder, a valve core cylinder, a remote control action mechanism, a wellhead pressure sensor and an external transmission pipeline pressure sensor; an inlet flange and a detection interface are arranged on the shell, an outlet flange and an inner interface are arranged at two ends of the shell, a valve cylinder is arranged at the lower end of the valve body, a side valve hole is arranged on the side wall of the valve cylinder, and the valve cylinder is fixed in the inner interface; the adjusting cylinder is fixedly connected with the necking of the valve cylinder and extends into the valve cylinder, and the side wall of the adjusting cylinder is provided with a pressure adjusting hole; the outer side wall and the inner side wall of the valve core cylinder are respectively in sliding sealing fit with the valve cylinder and the adjusting cylinder, and a push-pull rod at the upper end of the valve core cylinder penetrates through the valve body to extend out of the valve body and is in transmission connection with the remote control action mechanism; a detection probe of the wellhead pressure sensor is communicated with the detection interface; the detecting probe of the output pipeline pressure sensor is communicated with the inner end of the outlet flange. The invention provides a natural gas well on-off adjusting method which is implemented by adopting a natural gas well three-in-one on-off adjusting device.
Description
Technical Field
The invention belongs to the technical field of natural gas well exploitation, and particularly relates to a three-in-one switch adjusting device and an adjusting method for a natural gas well.
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 and a wellhead block 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 three gate valves of the high-pressure natural gas well is high in cost, large in signal mutual interference and complex in operation.
Disclosure of Invention
In view of the above, it is an object of the present invention to provide a three-in-one gas well switching regulator and regulating method thereof, which overcomes or at least partially solves or alleviates the above problems.
The invention provides a three-in-one switch adjusting device for a natural gas well, which comprises:
the detection device comprises a shell, wherein an inlet flange and a detection interface are arranged on the side wall of the shell, an outlet flange is arranged at one end of the shell, an inner interface is arranged at the other end of the shell, the inlet flange, the detection interface, the outlet flange and the inner interface are communicated, and a plug is connected to the detection interface;
the valve body is cylindrical, the lower end of the valve body is a valve cylinder, the upper end of the valve body is provided with a sealing slide hole, the side wall of the valve cylinder is provided with a side valve hole, the lower end of the valve cylinder is provided with a necking, the valve cylinder extends into and is fixed in the inner port of the shell, the side valve hole is communicated with the inlet flange and the inner port of the detection interface, and the end part of the valve cylinder is communicated with the inner end of the outlet flange;
the lower end of the adjusting cylinder is fixed in a necking at the lower end of the valve cylinder, the adjusting cylinder extends into the valve cylinder and forms an annular space with the valve cylinder, and a pressure regulating hole is formed in the side wall of the adjusting cylinder;
the outer side wall of the valve core cylinder is in sliding sealing fit with the inner side wall of the valve cylinder, the inner side wall of the valve core cylinder is in sliding sealing fit with the outer side wall of the adjusting cylinder, and a push-pull rod is arranged at the upper end of the valve core cylinder and penetrates through the sealing slide hole to extend out of the valve body;
the remote control action mechanism is arranged at the upper end of the valve body and is in transmission connection with the push-pull rod;
the wellhead pressure sensor is connected to the plug, and a detection probe of the wellhead pressure sensor is communicated with the detection interface;
the outer conveying pipeline pressure sensor is fixed on the shell, and a detection probe of the outer conveying pipeline pressure sensor is communicated with the inner end of the outlet flange.
The invention also has the following optional features.
Optionally, the remote action mechanism comprises:
the action frame is connected to the upper end of the valve body, a driven bevel gear and a driving bevel gear which are meshed with each other are respectively arranged on the action frame in a rotating mode, a screw hole is formed in the axis of the driven bevel gear, and the front end of the push-pull rod is provided with threads and is in threaded fit with the driven bevel gear;
the remote control motor is connected with the speed reducer, the remote control motor and the speed reducer are fixed on the action frame, and a main shaft of the remote control motor is connected with the driving bevel gear.
Optionally, an anti-rotation plate is arranged on the action frame, an anti-rotation hole is formed in the anti-rotation plate, a flat key is arranged in the anti-rotation hole, a key groove is formed in the surface of the push-pull rod, the push-pull rod penetrates through the anti-rotation hole, and the flat key extends into the key groove.
Optionally, a manual bevel gear is rotatably arranged on the rotation preventing plate, the manual bevel gear is meshed with the driven bevel gear, and one end of the manual bevel gear is connected with a hand wheel.
Optionally, an annular groove is provided on the side wall of the valve cylinder, and the side valve hole is provided in the annular groove.
Optionally, the upper end of the valve core cylinder is provided with a mounting hole, and the lower end of the push-pull rod extends into the mounting hole and is fixedly connected with the mounting hole through a pin.
Optionally, the lower end of the push-pull rod is provided with a balance channel, and the balance channel is communicated with the side wall of the push-pull rod extending out of the upper end of the valve core cylinder.
Optionally, the adjusting cylinder is provided with a sewage draining hole on a side wall close to the necking of the lower end of the valve cylinder.
Optionally, the lower port and the inner side wall of the valve cylinder are provided with a layer of wear-resistant bushing.
The invention also provides a natural gas well on-off regulating method which is implemented by adopting the natural gas well three-in-one on-off regulating device as claimed in claims 1 to 9 and is characterized in that an internet of things platform control remote control action mechanism drives a push-pull rod and a valve core cylinder to move in a valve cylinder of a valve body, the pressure of an export pipeline is regulated by regulating the opening degrees of a side valve hole on the valve core cylinder and a pressure regulating hole on a regulating cylinder, a well mouth of the natural gas well is closed and opened by completely plugging or completely releasing the side valve hole and the pressure regulating hole, the pressure in an inlet flange is detected by a well mouth pressure sensor, the pressure in an outlet flange is detected by the export pipeline pressure sensor, when the pressure in the inlet flange is unchanged and the pressure in the outlet flange is suddenly reduced, the internet of things platform control remote control action mechanism drives the push-pull rod and the valve core cylinder to move in the valve cylinder of, the valve core cylinder completely blocks the side valve hole and the pressure regulating hole, and the stopping function of the natural gas well is realized.
The invention has the beneficial effects that:
the gas well three-in-one switch adjusting device and the adjusting method thereof adopt the remote control action mechanism to drive the push-pull rod to move the valve core cylinder, so that the valve core cylinder can block or release a side valve hole on the valve cylinder of the valve body and a pressure regulating hole on the regulating cylinder, the closing and the communication between an inlet flange and an outlet flange of the valve body are realized, meanwhile, the pressure in the gas well is detected through a wellhead pressure sensor, the pressure of an external pipeline is detected through the pressure sensor of the external pipeline, an internet of things platform can automatically perform the stopping action according to the feedback of the pressure difference between the two, and a worker can remotely control the pressure of the external pipeline 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 three-in-one switching regulator for the gas well of the present invention.
In the above figures: 1, a shell; 101 an inlet flange; 102 detecting an interface; 103 an outlet flange; 104 an inner interface; 2, a valve body; 201 a valve cylinder; 202 sealing the slide hole; 203 side valve hole; 204 annular grooves; 3, adjusting the cylinder; 301 pressure regulating hole; 302 a blowoff hole; 4, a valve core cylinder; 401, wear-resistant bushing; 5, a push-pull rod; 501 key grooves; 502 pressure equalization channel; 6, plugging the plug; 7 a wellhead pressure sensor; 8 an outgoing line pressure sensor; 9 an action frame; 10 a driven bevel gear; 11 a drive bevel gear; 12 remote control of the motor; 13 a reducer; 14, anti-rotation plates; 15 anti-rotation holes; 16 flat keys; 17 a manual bevel gear; 18 hand wheels; 19 pins; 20 internet of things platform.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Detailed Description
Example 1
Referring to fig. 1, an embodiment of the present invention provides a three-in-one switching regulator for a gas well, including: the remote control valve comprises a shell 1, a valve body 2, an adjusting cylinder 3, a valve core cylinder 4, a remote control action mechanism, a wellhead pressure sensor 7 and an external transmission pipeline pressure sensor 8; an inlet flange 101 and a detection interface 102 are arranged on the side wall of the shell 1, an outlet flange 103 is arranged at one end of the shell 1, an inner interface 104 is arranged at the other end of the shell, the inlet flange 101, the detection interface 102, the outlet flange 103 and the inner interface 104 are communicated with each other, and a plug 6 is connected to the detection interface 102; the valve body 2 is cylindrical, the lower end of the valve body is a valve cylinder 201, the upper end of the valve body is provided with a sealing slide hole 202, the side wall of the valve cylinder 201 is provided with a side valve hole 203, the lower end of the valve cylinder 201 is provided with a necking, the valve cylinder 201 extends into and is fixed in an inner port 103 of the shell 1, the side valve hole 203 is communicated with an inlet flange 101 and an inner port of a detection interface 102, and the end part of the valve cylinder 201 is communicated with an inner end of an outlet flange 103; the lower end of the adjusting cylinder 3 is fixed in a necking at the lower end of the valve cylinder 201, the adjusting cylinder 3 extends into the valve cylinder 201 and forms an annular space with the valve cylinder 201, and a pressure adjusting hole 301 is formed in the side wall of the adjusting cylinder 3; the outer side wall of the valve core cylinder 4 is in sliding sealing fit with the inner side wall of the valve cylinder 201, the inner side wall is in sliding sealing fit with the outer side wall of the adjusting cylinder 3, a push-pull rod 5 is arranged at the upper end of the valve core cylinder 4, and the push-pull rod 5 penetrates through the sealing sliding hole 202 and extends out of the valve body 2; the remote control action mechanism is arranged at the upper end of the valve body 2 and is in transmission connection with the push-pull rod 5; the wellhead pressure sensor 7 is connected to the plug 6, and a detection probe of the wellhead pressure sensor is communicated with the detection interface 102; the output pipeline pressure sensor 8 is fixed on the shell 1, and the detection probe of the output pipeline pressure sensor is communicated with the inner end of the outlet flange 103.
Referring to fig. 1, an inlet flange 101 and an outlet flange 103 of a housing 1 are connected to a wellhead pipeline of a natural gas well, and a closed state of a regulating valve is taken as an initial state, at this time, a side wall of a valve core cylinder 4 blocks a side valve hole 203 on the valve cylinder 201 and a pressure regulating hole 301 on a regulating cylinder 3 in the valve cylinder 201, so that the inlet flange 101 and the outlet flange 103 cannot be conducted;
when a worker needs to conduct a natural gas wellhead, the remote control action mechanism is controlled by the platform 20 of the internet of things to drive the push-pull rod 5 and the valve core cylinder 4 to move upwards in the valve cylinder 201 of the valve body 2 until the valve core cylinder 4 opens the side valve hole 203 and the pressure regulating hole 301, at the moment, an inlet flange 101 connected with the natural gas well wellhead can be conducted with an outlet flange 103 through the side valve hole 203 and the pressure regulating hole 301, natural gas in the natural gas well enters the valve cylinder 201 through the inlet flange 101 and the side valve hole 203, enters the regulating cylinder 3 through the pressure regulating hole 301, and flows into a natural gas pipeline through the outlet flange 103;
when a worker needs to close the natural gas well, the remote control action mechanism is controlled by the platform 20 of the internet of things to drive the push-pull rod 5 and the valve core cylinder 4 to move downwards in the valve cylinder 201 until the valve core cylinder 4 blocks the side valve hole 203 on the valve cylinder 201 and the pressure regulating hole 301 on the regulating cylinder 3;
when defeated pipeline pressure when needs are adjusted outward, only need make the valve core section of thick bamboo 201 part shelter from adjust the pressure regulating hole 301 on the section of thick bamboo 3 can, the pressure signal who returns thing networking test platform 20 according to defeated pipeline pressure sensor 8 outward simultaneously corrects.
When the export pipeline is broken, the pressure sensor 7 of the wellhead detects that the pressure is normal, the export pipeline pressure sensor 8 detects that the pressure is suddenly reduced, at the moment, the platform 20 of the internet of things can automatically control the remote control action mechanism to drive the push-pull rod 5 and the valve core cylinder 4 to rapidly move downwards in the valve cylinder 201 until the valve core cylinder 4 completely seals the side valve hole 203 on the valve cylinder 201 and the pressure regulating hole 301 on the regulating cylinder 3, and the communication between the inlet flange 101 and the outlet flange 103 is cut off.
Example 2
Referring to fig. 1, on the basis of embodiment 1, the remote control action mechanism includes an action frame 9, a remote control motor 12, and a speed reducer 13; the action frame 9 is connected to the upper end of the valve body 2, a driven bevel gear 10 and a driving bevel gear 11 which are meshed with each other are respectively and rotatably arranged on the action frame 9, a screw hole is formed in the axis of the driven bevel gear 10, and the front end of the push-pull rod 5 is provided with threads which are in threaded fit with the driven bevel gear 10; the remote control motor 12 is connected with the speed reducer 13, the remote control motor 12 and the speed reducer 13 are fixed on the action frame 9, and the main shaft of the remote control motor is connected with the driving bevel gear 11.
When a worker needs to enable a natural gas wellhead to be communicated, the remote control motor 12 is controlled to rotate through the Internet of things platform 20, the remote control motor 12 drives the driving bevel gear 11 and the driven bevel gear 10 to rotate through the speed reducer 3, when the driven bevel gear 10 rotates, threads in a screw hole in the axis position push the push-pull rod 5 to move upwards, the push-pull rod 5 drives the valve core cylinder 4 to move upwards in the valve cylinder 201 of the valve body 2 until the valve core cylinder 4 opens the side valve hole 203 and the pressure regulating hole 301, and at the moment, the inlet flange 101 connected with the natural gas wellhead can be communicated with the side valve hole 203, the pressure regulating hole 301 and the outlet flange 103.
Example 3
Referring to fig. 1, on the basis of embodiment 2, an anti-rotation plate 14 is provided on the action frame 9, an anti-rotation hole 15 is provided on the anti-rotation plate 14, a flat key 16 is provided in the anti-rotation hole 15, a key groove 501 is provided on the surface of the push-pull rod 5, the push-pull rod 5 passes through the anti-rotation hole 15, and the flat key 16 extends into the key groove 501.
The key groove 501 extends axially on the surface of the push-pull rod 5, and after the push-pull rod 5 extends into the anti-rotation plate 14, the flat key 16 on the anti-rotation plate 14 extends into the key groove 501, so that the push-pull rod 5 can be prevented from rotating, and the driven bevel gear 10 can push the push-pull rod 5 through threads when rotating.
Example 4
Referring to fig. 1, on the basis of embodiment 1, a manual bevel gear 17 is rotatably arranged on the rotation preventing plate 14, the manual bevel gear 17 is engaged with the driven bevel gear 10, and a hand wheel 18 is connected to one end of the manual bevel gear 17.
The hand wheel 18 is fixedly connected with the end face of the manual bevel gear 17, and a worker can rotate the hand wheel 18 to drive the driven bevel gear 17 to rotate so as to adjust the position of the valve core barrel 4 and control the opening and closing of the natural gas well and the pressure adjustment of an external transmission pipeline.
Example 5
Referring to fig. 1, on the basis of embodiment 1, an annular groove 204 is provided on the side wall of the valve cylinder 201, and the side valve hole 203 is provided in the annular groove 204.
The eight side valve holes 203 are arranged in an annular groove 204 on the valve cylinder 201, and the annular groove 204 provides air passage channels between the eight side valve holes 203 and the inner ports of the inlet flange 101.
Example 6
Referring to fig. 1, on the basis of embodiment 1, the upper end of the valve core cylinder 4 is provided with a mounting hole, and the lower end of the push-pull rod 5 extends into the mounting hole and is fixedly connected with the mounting hole through a pin 19.
After the lower end of the push-pull rod 5 extends into the mounting hole at the upper end of the valve core cylinder 4, the pin 19 transversely penetrates through the valve core cylinder 4 and the push-pull rod 5 to be fixedly connected together.
Example 7
Referring to fig. 1, in example 6, the lower end of the push-pull rod 5 is provided with a balance passage 502, and the balance passage 502 is led out from the side wall of the push-pull rod 5 extending out of the upper end of the cartridge 4.
When the push-pull rod 5 pushes the valve core cylinder 4 to move downwards, vacuum is generated between the valve core cylinder 4 and the inner end of the sealing slide hole 202 in the valve cylinder 201, so that a pressure balance channel 502 needs to be arranged between the end part and the side wall of the push-pull rod 5, the pressure balance channel 502 is composed of a transverse through hole radially penetrating through the push-pull rod 5 and a through hole arranged at the end part of the push-pull rod 5, the transverse through hole and the through hole are communicated, pressure balance at each position when the valve core cylinder 4 moves downwards is guaranteed, and the movement resistance of the valve core cylinder 4 can be reduced.
Example 8
Referring to fig. 1, on the basis of embodiment 1, the adjusting cylinder 3 is provided with a drain hole 302 on a side wall near the throat of the lower end of the valve cylinder 201.
Moisture or other dirt carried in the natural gas can be accumulated between the lower port of the regulating cylinder 3 and the lower port of the valve cylinder 201, and a drain hole 302 is formed in the lower portion of the regulating cylinder 3 to facilitate the drainage of the moisture or the dirt.
Example 9
Referring to fig. 1, on the basis of embodiment 1, the lower port and the inner side wall of the valve cylinder 201 are provided with a layer of wear-resistant insert 401.
The wear-resistant insert 401 may be made of a ceramic material or another alloy material, and ensures the sealing between the valve cylinder 201 and the adjustment cylinder 3.
Example 10
Referring to fig. 1, an embodiment of the present invention provides a method for adjusting the opening and closing of a natural gas well, which is implemented by using the three-in-one opening and closing adjusting device for a natural gas well described in any of the above embodiments, and mainly includes: the remote control action mechanism is controlled by the platform 20 of the internet of things to drive the push-pull rod 5 and the valve core cylinder 4 to move in the valve cylinder 201 of the valve body 2, the valve core cylinder 4 adjusts the opening degree of the side valve hole 203 on the valve cylinder 201 and the pressure adjusting hole 301 on the adjusting cylinder 3 to adjust the outgoing line pressure, the wellhead of the natural gas well is closed and opened by completely blocking or completely releasing the side valve hole 203 and the pressure regulating hole 301, the pressure in the inlet flange 101 is detected by a wellhead pressure sensor 7, the pressure in the outlet flange 103 is detected by an export pipeline pressure sensor 8, when the pressure in the inlet flange 101 is constant and the pressure in the outlet flange 103 suddenly decreases, the platform 20 of the internet of things controls the remote control action mechanism to drive the push-pull rod 5 and the valve core cylinder 4 to move in the valve cylinder 201 of the valve body 2, so that the valve core cylinder 201 completely blocks the side valve hole 203 and the pressure regulating hole 301, and the stop function of the natural gas well is realized.
An inlet flange 101 and an outlet flange 103 of the shell 1 are connected to a wellhead pipeline of a natural gas well, and the closed state of the regulating valve is taken as an initial state, at the moment, the side wall of the valve element cylinder 4 blocks a side valve hole 203 on the valve cylinder 201 and a pressure regulating hole 301 on the regulating cylinder 3 in the valve cylinder 201, so that the inlet flange 101 and the outlet flange 103 cannot be conducted;
when a worker needs to conduct a natural gas well mouth, the remote control motor 12 is controlled to rotate through the Internet of things platform 20, the remote control motor 12 drives the driving bevel gear 11 and the driven bevel gear 10 to rotate through the speed reducer 3, when the driven bevel gear 10 rotates, threads in a screw hole in the axis position push the push-pull rod 5 to move upwards, the push-pull rod 5 drives the valve core cylinder 4 to move upwards in the valve cylinder 201 of the valve body 2 until the valve core cylinder 4 opens the side valve hole 203 and the pressure regulating hole 301, at the moment, an inlet flange 101 connected with the natural gas well mouth can be communicated with an outlet flange 103 through the side valve hole 203 and the side valve hole 203, natural gas in the natural gas well enters the valve cylinder 201 through the inlet flange 101 and the side valve hole 203, enters the regulating cylinder 3 through the pressure regulating hole 301, and flows into a natural gas pipeline through the outlet flange 103;
when a worker needs to close a natural gas well, the remote control motor 12 is controlled to rotate reversely through the Internet of things platform 20, the remote control motor 12 drives the driving bevel gear 11 and the driven bevel gear 10 to rotate reversely through the speed reducer 3, when the driven bevel gear 10 rotates reversely, threads in a screw hole in the axis of the driven bevel gear push the push-pull rod 5 to move downwards, and the push-pull rod 5 drives the valve core cylinder 4 to move downwards in the valve cylinder 201 until the valve core cylinder 4 blocks a side valve hole 203 on the valve cylinder 201 and a pressure regulating hole 301 on the regulating cylinder 3;
when defeated pipeline pressure when needs are adjusted outward, only need make the valve core section of thick bamboo 201 part shelter from adjust the pressure regulating hole 301 on the section of thick bamboo 3 can, the pressure signal who returns thing networking test platform 20 according to defeated pipeline pressure sensor 8 outward simultaneously corrects.
When an external transmission pipeline is broken, the pressure sensor 7 of the wellhead detects that the pressure is normal, the pressure sensor 8 of the external transmission pipeline detects that the pressure suddenly drops, at the moment, the platform 20 of the internet of things can automatically and remotely control the motor 12 to reversely rotate, the remote control motor 12 drives the driving bevel gear 11 and the driven bevel gear 10 to reversely rotate through the speed reducer 3, when the driven bevel gear 10 reversely rotates, threads in a screw hole in the axis of the driven bevel gear push the push-pull rod 5 to move downwards, the push-pull rod 5 drives the valve core cylinder 4 to move downwards in the valve cylinder 201 until the valve core cylinder 4 completely seals the side valve hole 203 on the valve cylinder 201 and the pressure regulating hole 301 on the regulating cylinder 3, and the communication between the inlet flange 101 and the outlet flange.
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 (10)
1. The utility model provides a trinity on-off adjusting device of natural gas well which characterized in that includes:
the detection device comprises a shell (1), wherein an inlet flange (101) and a detection interface (102) are arranged on the side wall of the shell (1), an outlet flange (103) is arranged at one end of the shell (1), an inner interface (104) is arranged at the other end of the shell, the inlet flange (101), the detection interface (102), the outlet flange (103) and the inner interface (104) are communicated with each other, and a plug (6) is connected to the detection interface (102);
the valve body (2) is cylindrical, the lower end of the valve body (2) is a valve cylinder (201), the upper end of the valve body is provided with a sealing sliding hole (202), the side wall of the valve cylinder (201) is provided with a side valve hole (203), the lower end of the valve cylinder (201) is provided with a necking, the valve cylinder (201) extends into and is fixed in the inner port (103) of the shell (1), the side valve hole (203) is communicated with the inlet flange (101) and the inner port of the detection interface (102), and the end part of the valve cylinder (201) is communicated with the inner end of the outlet flange (103);
the lower end of the adjusting cylinder (3) is fixed in a necking at the lower end of the valve cylinder (201), the adjusting cylinder (3) extends into the valve cylinder (201) and forms an annular space with the valve cylinder (201), and a pressure adjusting hole (301) is formed in the side wall of the adjusting cylinder (3);
the outer side wall of the valve core cylinder (4) is in sliding sealing fit with the inner side wall of the valve cylinder (201), the inner side wall of the valve core cylinder is in sliding sealing fit with the outer side wall of the adjusting cylinder (3), a push-pull rod (5) is arranged at the upper end of the valve core cylinder (4), and the push-pull rod (5) penetrates through the sealing slide hole (202) and extends out of the valve body (2);
the remote control action mechanism is arranged at the upper end of the valve body (2) and is in transmission connection with the push-pull rod (5);
the wellhead pressure sensor (7), the wellhead pressure sensor (7) is connected to the plug (6), and a detection probe of the wellhead pressure sensor is communicated with the detection interface (102);
the outer conveying pipeline pressure sensor (8) is fixed on the shell (1), and a detection probe of the outer conveying pipeline pressure sensor is communicated with the inner end of the outlet flange (103).
2. The gas well three-in-one switching regulator as set forth in claim 1 wherein the remote control actuator comprises:
the actuating frame (9) is connected to the upper end of the valve body (2), a driven bevel gear (10) and a driving bevel gear (11) which are meshed with each other are respectively arranged on the actuating frame (9) in a rotating mode, a screw hole is formed in the axis of the driven bevel gear (10), and the front end of the push-pull rod (5) is provided with threads and is in threaded fit with the driven bevel gear (10);
the remote control device comprises a remote control motor (12) and a speed reducer (13), wherein the remote control motor (12) is connected with the speed reducer (13), the remote control motor (12) and the speed reducer (13) are fixed on the action frame (9), and a main shaft of the remote control motor is connected with the drive bevel gear (11).
3. The gas well three-in-one switch adjusting device is characterized in that an anti-rotation plate (14) is arranged on the action frame (9), an anti-rotation hole (15) is formed in the anti-rotation plate (14), a flat key (16) is arranged in the anti-rotation hole (15), a key groove (501) is formed in the surface of the push-pull rod (5), the push-pull rod (5) penetrates through the anti-rotation hole (15), and the flat key (16) extends into the key groove (501).
4. The gas well three-in-one switch adjusting device is characterized in that a manual bevel gear (17) is rotatably arranged on the anti-rotating plate (14), the manual bevel gear (17) is meshed with the driven bevel gear (10), and a hand wheel (18) is connected to one end of the manual bevel gear (17).
5. The three-in-one switching regulator for the natural gas well as the oil well as the gas well as the oil well are characterized in that an annular groove (204) is formed in the side wall of the valve cylinder (201), and the side valve hole (203) is formed in the annular groove (204).
6. The three-in-one switching and adjusting device for the natural gas well is characterized in that a mounting hole is formed in the upper end of the valve core cylinder (4), and the lower end of the push-pull rod (5) extends into the mounting hole and is fixedly connected with the mounting hole through a pin (19).
7. The gas well three-in-one switching regulation device as claimed in claim 6, characterized in that the lower end of the push-pull rod (5) is provided with a balance channel (502), and the balance channel (502) is communicated with the side wall of the push-pull rod (5) extending out of the upper end of the valve core cylinder (4).
8. The gas well three-in-one switching regulator as claimed in claim 1, characterized in that the regulating cylinder (3) is provided with a drain hole (302) on the side wall near the constriction of the lower end of the valve cylinder (201).
9. The gas well three-in-one switching regulator as set forth in claim 1 wherein the lower port and the inner side wall of the valve cylinder (201) are provided with a layer of wear resistant inserts (401).
10. A natural gas well on-off regulation method is implemented by adopting the natural gas well three-in-one on-off regulation device as claimed in any one of claims 1 to 9, and is characterized in that an internet of things platform control remote control action mechanism drives a push-pull rod and a valve core cylinder to move in a valve cylinder of a valve body, the pressure of an export pipeline is regulated by regulating the opening degree of a side valve hole on the valve core cylinder and a pressure regulating hole on a regulating cylinder, a well mouth of a natural gas well is closed and opened by completely plugging or completely releasing the side valve hole and the pressure regulating hole, the pressure in an inlet flange is detected by a well mouth pressure sensor, the pressure in an outlet flange is detected by the export pipeline pressure sensor, when the pressure in the inlet flange is unchanged and the pressure in the outlet flange is suddenly reduced, the internet of things platform control remote control action mechanism drives the push-pull rod and the valve core cylinder to move in the valve cylinder, the valve core cylinder completely blocks the side valve hole and the pressure regulating hole, and the stopping function of the natural gas well is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010248754.4A CN111472718A (en) | 2020-04-01 | 2020-04-01 | Three-in-one switch adjusting device for natural gas well and adjusting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010248754.4A CN111472718A (en) | 2020-04-01 | 2020-04-01 | Three-in-one switch adjusting device for natural gas well and adjusting method thereof |
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| CN111472718A true CN111472718A (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010248754.4A Pending CN111472718A (en) | 2020-04-01 | 2020-04-01 | Three-in-one switch adjusting device for natural gas well and adjusting method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145124A (en) * | 2020-09-30 | 2020-12-29 | 陕西百豪科技发展有限责任公司 | Natural gas well head and pipeline electromechanical double-control intelligent emergency cut-off device |
| CN112145125A (en) * | 2020-09-30 | 2020-12-29 | 陕西百豪科技发展有限责任公司 | Natural gas well four-in-one remote intelligent production and safety control equipment |
| CN113833453A (en) * | 2021-09-26 | 2021-12-24 | 牡丹江天庆石油机械设备有限公司 | Control device for testing wellhead |
-
2020
- 2020-04-01 CN CN202010248754.4A patent/CN111472718A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145124A (en) * | 2020-09-30 | 2020-12-29 | 陕西百豪科技发展有限责任公司 | Natural gas well head and pipeline electromechanical double-control intelligent emergency cut-off device |
| CN112145125A (en) * | 2020-09-30 | 2020-12-29 | 陕西百豪科技发展有限责任公司 | Natural gas well four-in-one remote intelligent production and safety control equipment |
| CN112145124B (en) * | 2020-09-30 | 2023-11-14 | 陕西百豪科技发展有限责任公司 | Electromechanical double-control intelligent emergency cutting device for natural gas wellhead and pipeline |
| CN113833453A (en) * | 2021-09-26 | 2021-12-24 | 牡丹江天庆石油机械设备有限公司 | Control device for testing wellhead |
| CN113833453B (en) * | 2021-09-26 | 2023-09-01 | 牡丹江天庆石油机械设备有限公司 | Test wellhead control device |
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