Wellhead gas production pressure sensing control device

Abstract

The utility model relates to the technical field of gas production, and discloses a wellhead gas production pressure sensing control device which comprises an air pressure flow guide control valve, a guide-in pipeline and a guide-out pipeline, the guide-in pipeline and the guide-out pipeline are fixedly installed on the two sides of the air pressure flow guide control valve respectively, and a gas flow output adjusting mechanism is installed in the guide-out pipeline. A shell cover is welded on the lead-in pipeline; a cover plate is arranged at the opening of the shell cover, and an elastic locking piece is mounted between the cover plate and the shell cover; the fan blade replacement structure is simple in design, easy to operate, free of a complex disassembly process and convenient to disassemble and maintain, the fan blades can be replaced in time when being abraded due to the convenience of the fan blade replacement structure, the fan blades can be replaced in time, and the service life of the fan blade replacement structure is prolonged. Airflow efficiency reduction and system faults caused by fan blade abrasion are avoided, and the using effect of the structure is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas exploitation technical field, concretely is a wellhead gas recovery pressure sensing control device. BACKGROUND

[0002] The pressure sensing control device of the gas recovery wellhead is the device for carrying out pressure sensing control to the gas recovered from the wellhead when the wellhead carries out gas exploitation, can detect the gas pressure in time, realizes switch control by the gas pressure value, is usually installed on the gas recovery tree of the wellhead, carries out overall control to the gas circulation of the gas recovery tree of the wellhead by pressure sensing control, is the pressure sensing controller material commonly used when the wellhead carries out gas recovery, is widely used in various wellhead occasions of gas exploitation, the pressure sensing control device of the gas recovery wellhead in the prior art is used, after the device is installed on the gas recovery tree of the wellhead, is penetrated with the pipeline of the wellhead gas recovery, to play the role of pressure sensing control.

[0003] It is found that the pressure sensing control device of the gas recovery wellhead disclosed in Publication (Announcement) No. CN116950604A discloses the technical scheme of "including the flow guide valve pipe, the front end of the flow guide valve pipe is fixedly installed with the gas pressure display table, the upper end of the flow guide valve pipe is fixedly installed with the control valve seat, one side of the flow guide valve pipe is fixedly installed with the inlet pipeline, the outer side of the inlet pipeline is welded with the motor storage seat, etc.

[0004] The above design, although the gas pressure is too low, utilizes the rotation of the rotating vane to generate wind power, drives the gas to increase the flow rate at one end of the inlet pipeline, and in turn increases the gas pressure, to improve the gas pressure value, facilitates the high-pressure exhaust demand of the wellhead gas recovery, but the gas may contain small solid particles, such as dust, sand particles, etc. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a wellhead gas recovery pressure sensing control device, which solves the problem of inconvenient replacement and maintenance of the rotating vane, and affects the conveying effect of the gas flow in the later period.

[0006] In order to achieve the above object, the utility model discloses a kind of wellhead gas extraction pressure sensing control devices, including gas pressure flow control valve and respectively fixedly installed in the gas pressure flow control valve both sides import pipeline and export pipeline, the inside installation of export pipeline has airflow output adjusting mechanism, shell cover is welded on import pipeline;

[0007] The open end of the shell cover is provided with a cover plate, and an elastic locking member is installed between the cover plate and the shell cover.

[0008] A plugging plate is arranged below the cover plate, and a silica gel sealing ring is fixed to the lower surface of the plugging plate.

[0009] A partition plate is fixedly installed on the inner side wall of the shell cover, and a circular hole is formed in the center of the partition plate.

[0010] A fan blade is arranged below the partition plate and in the import pipeline.

[0011] A motor for driving the fan blade to rotate is fixedly installed on the upper surface of the plugging plate.

[0012] Preferably, the output end of the motor is fixedly connected with a drive shaft, one end of the drive shaft penetrates the plugging plate and is fixedly connected with the fan blade, the surface of the drive shaft is rotatably connected with the plugging plate through a sealing bearing, and a plurality of connecting columns are fixedly installed between the cover plate and the plugging plate.

[0013] Preferably, the diameter of the circular hole is greater than the maximum diameter of the fan blade and less than the diameter of the plugging plate.

[0014] Preferably, the elastic locking member includes a plurality of hook buckles fixed on both sides of the cover plate, the surface of the shell cover is fixed with double spring buckles corresponding to the hook buckles, the double spring buckles are buckled on the hook buckles, and the connection between the cover plate and the shell cover is locked.

[0015] Preferably, when the cover plate is tightly installed at the open end of the shell cover, the silica gel sealing ring is in a compressed state.

[0016] Preferably, a latch is fixedly installed at the lower surface of the cover plate at four corners, and an insertion slot corresponding to the latch is formed at the upper surface of the shell cover at four corners.

[0017] Preferably, a handle is fixedly installed on the upper surface of the cover plate.

[0018] Preferably, air holes for heat dissipation of the motor are formed on the surface of the shell cover.

[0019] Beneficial effects

[0020] The utility model provides a kind of wellhead gas extraction pressure sensing control device.Compared with prior art, the following beneficial effects are possessed:

[0021] The wellhead gas extraction pressure control device has simple and easy-to-operate fan blade replacement structure, and does not need complicated disassembly process, so that the fan blade replacement structure is convenient to disassemble and maintain, and the convenience of the fan blade replacement structure enables timely replacement of the fan blade when the fan blade is worn, thereby avoiding the decrease of air flow efficiency and system failure caused by the worn fan blade, and improving the use effect of the structure. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure schematic view of the utility model;

[0023] Figure 2 It is a structure schematic view of the utility model connecting piece of the introduction pipeline and the shell cover;

[0024] Figure 3 It is a structure schematic view of the utility model separation of the shell cover and the cover plate.

[0025] In the figure: 101, air pressure flow control valve; 102, introduction pipeline; 103, export pipeline; 104, air flow output adjusting mechanism; 105, fan blade; 106, shell cover; 107, baffle; 108, motor; 109, cover plate; 110, connecting column; 111, handle; 112, plugging plate; 113, silica gel sealing ring; 114, bolt; 115, slot; 116, air hole; 2, elastic locking piece; 201, double-spring buckle; 202, hook buckle. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] As shown in the figure: Figure 1

[0028] A wellhead gas extraction pressure control device, including air pressure flow control valve 101 and introduction pipeline 102 and export pipeline 103 fixedly installed on both sides of air pressure flow control valve 101 respectively, the inside of export pipeline 103 is installed with air flow output adjusting mechanism 104.

[0029] ​In this embodiment: the existing device {publication (announcement) number} CN116950604A discloses a pressure sensing control device for gas wellhead, the gas flow output adjusting mechanism 104 in the present application file adopts the same technical means in this existing technology, which will not be described here, and the main body of the present application is further improved, please refer to the following disclosure technology for details; to solve the technical problems existing in the prior art, as disclosed in the background art above, "the above design, although the gas pressure is too low, the rotation of the rotating blade generates wind power, which drives the gas to move at one end of the gas pipeline 102, thereby increasing the gas pressure, and facilitating the high gas pressure exhaust demand of the wellhead gas extraction, but the gas may contain small solid particles such as dust and sand particles, which will cause wear to the surface of the blade under the action of high-speed airflow, and this structure is not convenient for replacing and maintaining the rotating blade, which will affect the later gas flow conveying effect", in combination with use, this problem is obviously a real problem and is relatively difficult to solve, the power equipment involved in the product is powered by external power supply.

[0030] It should be noted that the fittings used by the gas flow output adjusting mechanism 104 are disclosed in publication CN116950604A, and the use effect can refer to publication CN116950604A (i.e. the "motor mounting box; second conductive wire; telescopic motor; telescopic connecting rod; gas guide cone pipe; adjustable gas discharge structure; center pipe; gas discharge hole; moving frame; push-pull rod; connecting shaft sleeve; connecting push rod; sealing plate component" disclosed in this prior art).

[0031] Further speaking:

[0032] As shown in Figures 1-3

[0033] In combination with the above content: the inlet pipeline 102 is welded with a shell cover 106;

[0034] The open end of the shell cover 106 is provided with a cover plate 109, and an elastic locking piece 2 is installed between the cover plate 109 and the shell cover 106, the elastic locking piece 2 includes multiple groups of hook buckles 202 fixed on both sides of the cover plate 109, the surface of the shell cover 106 is fixed with double spring buckles 201 corresponding to the hook buckles 202, the double spring buckles 201 are buckled on the hook buckles 202, and the double spring buckles 201 are buckled on the hook buckles 202. The connection between the cover plate 109 and the shell cover 106 is locked;

[0035] A plugging plate 112 is arranged below the cover plate 109, and a silica gel sealing ring 113 is fixed to the lower surface of the plugging plate 112; when the cover plate 109 is tightly installed at the open end of the shell cover 106, the silica gel sealing ring 113 is in a compressed state;

[0036] ​The inner side wall of the shell cover 106 is fixedly installed with a partition plate 107, and a circular hole is formed in the center of the partition plate 107;

[0037] A fan blade 105 is arranged below the partition plate 107 and in the inlet pipeline 102;

[0038] The upper surface of the blocking plate 112 is fixedly installed with a motor 108 for driving the fan blade 105 to rotate;

[0039] The output end of the motor 108 is fixedly connected with a driving shaft, one end of the driving shaft penetrates through the blocking plate 112 and is fixedly connected with the fan blade 105, the surface of the driving shaft is rotatably connected with the blocking plate 112 through a sealing bearing, and a plurality of connecting columns 110 are fixedly installed between the cover plate 109 and the blocking plate 112;

[0040] The diameter of the circular hole is greater than the maximum diameter of the fan blade 105 and smaller than the diameter of the blocking plate 112;

[0041] The lower surface of the cover plate 109 is fixedly installed with a latch 114 at the four corners, and the upper surface of the shell cover 106 is formed with a slot 115 matched with the latch 114 at the four corners;

[0042] The upper surface of the cover plate 109 is fixedly installed with a handle 111.

[0043] In this embodiment, the wellhead gas extraction pressure control device is used, the inlet pipeline 102 is connected with the pipeline for introducing gas through a flange, the outlet pipeline 103 is connected with the pipeline for discharging gas through a flange, and then the device is installed and fixed, the gas enters the gas pressure flow control valve 101 through the inlet pipeline 102, the gas pressure display table on the gas pressure flow control valve 101 detects and displays the gas pressure when the gas passes through, then the gas is discharged through the outlet pipeline 103, and the switch handle above the gas pressure flow control valve 101 is rotatable to drive the valve plate in the gas pressure flow control valve 101 to move to control the passage inside, and then the gas flow is controlled according to the gas pressure;

[0044] In the wellhead gas extraction process, the gas enters the inlet pipeline 102, the motor 108 is operated to drive the fan blade 105 to rotate, the fan blade 105 generates wind power to increase the flow rate of the one end of the inlet pipeline 102, thereby increasing the gas pressure, and the gas pressure value is increased, the motor 108 is reversely operated to drive the fan blade 105 to reversely rotate, the fan blade 105 sends gas to the one end of the inlet pipeline 102, thereby forming a backflush to the gas flow, and the gas pressure through which the gas flow passes is reduced, and the flow rate adjustment mechanism 104 can adjust the flow rate of the gas flow passing through the outlet pipeline 103 when the gas is discharged;

[0045] During the long rotation of the fan blade 105, the gas may contain tiny solid particles such as dust, sand and the like. These particles will impact the rotating blade under the action of high-speed airflow, like abrasive, causing wear to the surface of the blade, and the fan blade 105 needs to be replaced;

[0046] First, the double-spring buckle 201 is moved to release the buckling of the hook buckle 202, thereby releasing the connection locking of the cover plate 109 and the shell cover 106. Then, the handle 111 is held and the cover plate 109 is pulled up. The cover plate 109 is connected through the connecting column 110 and the blocking plate 112, and the motor 108 and the fan blade 105 are installed on the blocking plate 112, so that the fan blade 105 can be easily taken out of the inlet pipeline 102. Through this structure, the replacement structure of the fan blade 105 is simple and easy to operate, without complex disassembly process, which is convenient for disassembly and maintenance. The convenience of the replacement structure of the fan blade 105 enables timely replacement when the fan blade 105 is worn, avoiding the decrease of airflow efficiency and system failure caused by the wear of the fan blade 105, and improving the use effect of the structure;

[0047] When installing, the cover plate 109 is placed at the opening of the shell cover 106, and the pins 114 at the four corners of the cover plate 109 are inserted into the slots 115, thereby achieving the limiting effect of the cover plate 109, and realizing the stability of the connection between the cover plate 109 and the shell cover 106;

[0048] The double-spring buckle 201 is buckled on the hook buckle 202 to lock the cover plate 109 again. At the same time of installing and locking the cover plate 109 and the shell cover 106, the silica gel sealing ring 113 is in a compressed state, thereby increasing the sealing property between the blocking plate 112 and the partition plate 107, avoiding the discharge of gas from the circular hole of the partition plate 107, and isolating the motor 108 and the fan blade 105 through the blocking of the blocking plate 112 and the partition plate 107. The fan blade 105 is located in the inlet pipeline 102, and the motor 108 is located outside the inlet pipeline 102, avoiding the long-time placement of the motor 108 in the inlet pipeline 102. Due to the particularity of the internal environment of the inlet pipeline 102, such as high pressure and corrosive gas, the motor 108 may face higher risk of failure, such as insulation aging and motor 108 short circuit, thereby further improving the practicality of the structure.

[0049] Furthermore;

[0050] In an optional embodiment, the surface of the shell cover 106 is provided with gas holes 116 for heat dissipation of the motor 108.

[0051] In this embodiment: the surface of the shell cover 106 is provided with a plurality of groups of air holes 116, through the setting of the air holes 116, better to the long time running motor 108 play the effect of heat dissipation, prolong the service life of the motor 108.

[0052] The working principle and use process of the utility model: the wellhead gas gathering pressure control device, in use, the fan blade 105 rotates for a long time, the gas may contain small solid particles, such as dust, sand particles, etc., these particles impact the rotating blade under the action of high-speed airflow, like abrasive, can cause abrasion to the surface of the blade, and when the fan blade 105 needs to be replaced; first, move the double spring buckle 201, so that the double spring buckle 201 releases the buckling of the hook buckle 202, thereby releasing the connection locking of the cover plate 109 and the shell cover 106, then hold the handle 111, pull up the cover plate 109, and the cover plate 109 is connected through the connecting column 110 and the plugging plate 112, and the motor 108 and the fan blade 105 are installed on the plugging plate 112, so that the fan blade 105 is taken out from the inlet pipeline 102, through this structure, the fan blade 105 replacement structure design is simple, easy to operate, without complex disassembly process, convenient for disassembly and maintenance, the convenience of the fan blade 105 replacement structure makes it possible to replace the fan blade 105 in time when it is worn, avoiding the decrease of airflow efficiency and system failure caused by the wear of the fan blade 105, and improving the use effect of the structure; when installing, place the cover plate 109 at the opening of the shell cover 106, and insert the pins 114 at the four corners of the cover plate 109 into the slot 115, to limit the cover plate 109, so that the stability of the connection of the cover plate 109 and the shell cover 106 can be realized; the double spring buckle 201 is buckled on the hook buckle 202, and the cover plate 109 is locked again, and at the same time of installing and locking the cover plate 109 and the shell cover 106, the silica gel sealing ring 113 is in a compressed state, thereby increasing the sealing property between the plugging plate 112 and the baffle 107, avoiding the discharge of gas from the circular hole of the baffle 107, isolating the motor 108 and the fan blade 105 through the plugging of the plugging plate 112 and the baffle 107, so that the fan blade 105 is located in the inlet pipeline 102, and the motor 108 is located outside the inlet pipeline 102, avoiding that the motor 108 is in the inlet pipeline 102 for a long time, and because of the particularity of the internal environment of the inlet pipeline 102, such as high pressure and corrosive gas, the motor 108 may face higher risk of failure, such as insulation aging and motor 108 short circuit, further improving the practicability of the structure.

[0053] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

Claims

1. A wellhead gas production pressure sensing control device, comprising a gas pressure flow control valve (101) and an inlet pipe (102) and an outlet pipe (103) fixedly installed on both sides of the gas pressure flow control valve (101) respectively, an internal installation of a gas flow output adjusting mechanism (104) in the outlet pipe (103), characterized in that, The shell cover (106) is welded on the guide pipe (102); The cover plate (109) is provided with an elastic locking part (2) between the cover plate (109) and the shell cover (106); The bottom surface of the cover plate (109) is fixed with a silica gel sealing ring (113); The inner side wall of the shell cover (106) is fixedly installed with a partition plate (107), and a circular hole is formed in the center of the partition plate (107); The lower part of the partition plate (107) is provided with a fan blade (105) in the guide pipe (102); The upper surface of the cover plate (112) is fixedly installed with a motor (108) for driving the fan blade (105) to rotate.

2. The wellhead gas production pressure sensing control device of claim 1, wherein: The output end of the motor (108) is fixedly connected with a driving shaft, one end of the driving shaft penetrates the cover plate (112) and is fixedly connected with the fan blade (105), the surface of the driving shaft is rotatably connected with the cover plate (112) through a sealing bearing, and a plurality of connecting columns (110) are fixedly installed between the cover plate (109) and the cover plate (112).

3. The wellhead gas production pressure sensing control device of claim 1, wherein: The diameter of the circular hole is greater than the maximum diameter of the fan blade (105) and less than the diameter of the cover plate (112).

4. The wellhead gas production pressure sensing control device of claim 1, wherein: The elastic locking part (2) includes a plurality of hook buckles (202) fixed on both sides of the cover plate (109), the surface of the shell cover (106) is fixed with a double spring buckle (201) corresponding to the hook buckle (202), the double spring buckle (201) is buckled on the hook buckle (202), and the double spring buckle (201) is buckled on the hook buckle (202) for locking the connection of the cover plate (109) and the shell cover (106).

5. The wellhead gas production pressure sensing control device of claim 1, wherein: When the cover plate (109) is tightly installed at the opening of the shell cover (106), the silica gel sealing ring (113) is in a compressed state.

6. The wellhead gas production pressure sensing control device of claim 5, wherein: The lower surface of the cover plate (109) is fixedly installed with a latch (114) at the four corners, and the upper surface of the shell cover (106) is provided with a plug groove (115) matched with the latch (114).

7. The wellhead gas production pressure sensing control device of claim 6, wherein: The upper surface of the cover plate (109) is fixedly installed with a handle (111).

8. The wellhead gas production pressure sensing control device of claim 7, wherein: The surface of the shell cover (106) is provided with a gas scattering hole (116) for heat dissipation of the motor (108).

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