CN217234409U

CN217234409U - Valve body sealing structure of wellhead intelligent control valve

Info

Publication number: CN217234409U
Application number: CN202220376807.5U
Authority: CN
Inventors: 王韬瑜; 杨仕勇; 常鹏; 相平汉; 张奇
Original assignee: Xifulong Valve Group Co Ltd
Current assignee: Xifulong Valve Group Co Ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-08-19
Anticipated expiration: 2032-02-23

Abstract

The utility model discloses a well head intelligent control valve's valve body seal structure, including water inlet tube head and valve casing, water inlet tube head installation is fixed on valve casing's left end position, valve casing's lower extreme is provided with the drainage tube head, valve casing's upper end is provided with the valve rod organism, valve casing's inside is provided with inside appearance chamber, the junction that the inboard that inside appearance chamber is located valve casing and drainage tube head is provided with the elasticity axle sleeve of contradicting, be provided with sealed gum cover on the inboard a week of elasticity conflict axle sleeve, the junction that the inboard that inside appearance chamber is located valve casing and valve rod organism is provided with the upside axle sleeve, be provided with the cavity stop collar on the inboard a week of upside axle sleeve, the lower extreme of valve rod organism is located inside appearance chamber inboard and is provided with the shutoff valve clack. The utility model discloses a well head intelligent control valve's valve body seal structure has the elastic conflict and prevents that the shutoff from producing the technological effect in clearance.

Description

Valve body sealing structure of wellhead intelligent control valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a well head intelligent control valve's valve body seal structure.

Background

At present, a needle valve for a wellhead is in a structure type of a hard sealing throttling valve core, cobalt-based alloy is welded on the surfaces of the valve core and a valve seat in a surfacing mode, the needle valve mainly has the function of cutting off and connecting pipelines, and along with the annual increase of low-yield and low-efficiency wells of a gas field, the daily well opening and closing operation of the gas well is more and more frequent. Therefore, when the valve clack of the valve rod in the whole inner part is blocked and sealed, a gap is easily caused, and the whole valve clack is not very tight when being blocked.

Therefore, it is necessary to provide a valve body sealing structure of a wellhead intelligent control valve to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a well head intelligent control valve's valve body seal structure aims at solving the technical problem that current valve body seal structure produces the clearance easily when fixed seal.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a well head intelligent control valve's valve body seal structure, includes into water tube head and valve housing, the tube head installation of intaking is fixed on valve housing's left end position, valve housing's lower extreme is provided with the drainage tube head, valve housing's upper end is provided with the valve rod organism, valve housing's inside is provided with inside appearance chamber, the junction that the inboard that the inside appearance chamber is located valve housing and drainage tube head is provided with the elastic conflict axle sleeve, be provided with sealed gum cover on the inboard a week of elastic conflict axle sleeve, the inboard that the inside appearance chamber is located valve housing and valve rod organism is provided with the upside axle sleeve, be provided with the cavity stop collar on the inboard a week of upside axle sleeve, the lower extreme of valve rod organism is located inside appearance chamber inboard and is provided with the shutoff valve clack, valve rod organism and external control ware electric connection.

Through the drive that is provided with the valve rod organism to be convenient for drive the shutoff valve clack and remove, the shutoff valve clack is in removing, spacing through upside axle sleeve and cavity stop collar, it is more stable when removing like this, the shutoff valve clack is when the shutoff, thereby be convenient for the shutoff to the inboard sealed gum cover of elasticity conflict axle sleeve, the runner that holds the chamber is carried in effective shutoff inside like this, and because of the conflict of elasticity conflict axle sleeve to sealed gum cover, make the shutoff valve clack can not cause the clearance when the shutoff.

In a preferred scheme, elasticity conflict axle sleeve includes inside race, conflict spring, axle sleeve shell, sealed cushion and spacing annular, the lower extreme inboard of axle sleeve shell is provided with sealed cushion, the upper end inboard of axle sleeve shell is provided with spacing annular, the inside of axle sleeve shell is provided with inside race, the inboard of inside race is located the axle sleeve shell and is provided with the conflict spring, the axle sleeve shell is through sealed cushion erection joint on valve housing.

Through being provided with elasticity axle sleeve structure of contradicting, the elasticity of being convenient for is contradicted and is used like this to be convenient for spacing fixed.

In a preferred scheme, sealed gum cover includes that the top is glued ring, inside runner, is inlayed nested ring sum bottom rubber tube, be provided with the bottom rubber tube in the middle of the lower extreme of top rubber ring, the inside of bottom rubber tube is provided with inside runner, the outside of bottom rubber tube is located the lower extreme of top rubber ring and is provided with and inlays nested ring, the top is glued the ring and is sheathe in at the elastic conflict axle through inlaying lantern ring erection joint.

Through being provided with sealed gum cover structure to be convenient for sealed installation and use.

In a preferred scheme, the water inlet pipe head comprises an outer flange ring wheel, a welding end ring and a middle pipeline, the middle pipeline is arranged at the right end of the outer flange ring wheel, the welding end ring is arranged at the right end of the middle pipeline, and the welding end ring is installed and connected on the valve shell.

Through being provided with inlet tube head structure, be convenient for like this and external connection use.

In a preferred scheme, the plugging valve flap and the sealing rubber sleeve are fixedly connected in a sleeved mode, and the outer sides of the connection positions of the plugging valve flap and the sealing rubber sleeve are located on the same straight line.

Through being provided with sealed gum cover structure to shutoff valve clack and sealed gum cover are convenient for install and are fixed, and the junction outside of shutoff valve clack and sealed gum cover is in same straight line, can not take place to hinder like this when using.

In a preferred scheme, the circle centers of the plugging valve clack, the sealing rubber sleeve and the elastic abutting shaft sleeve are positioned on the same straight line, and the plugging valve clack can be sleeved in the middle of the inside of the sealing rubber sleeve.

Through being provided with shutoff valve clack, sealed gum cover and elasticity conflict axle sleeve structure for the shutoff valve clack is convenient for the shutoff closed and is used, and the shutoff valve clack can cup joint in the middle of the inside of sealed gum cover, and the inside of the sealed gum cover of shutoff valve clack is convenient for the shutoff like this.

From the above, the valve body sealing structure of the wellhead intelligent control valve comprises a water inlet pipe head and a valve shell, the water inlet pipe head is fixedly arranged at the left end of the valve shell, the lower end of the valve shell is provided with a water discharge pipe head, the upper end of the valve shell is provided with a valve rod machine body, the interior of the valve shell is provided with an internal cavity, an elastic abutting shaft sleeve is arranged at the joint of the valve shell and the drainage pipe head on the inner side of the inner cavity, a sealing rubber sleeve is arranged on the periphery of the inner side of the elastic abutting shaft sleeve, an upper side shaft sleeve is arranged on the inner side of the inner containing cavity and positioned at the joint of the valve shell and the valve rod machine body, the valve rod is characterized in that a hollow limiting sleeve is arranged on the periphery of the inner side of the upper side shaft sleeve, a plugging valve clack is arranged on the inner side, located in the inner cavity, of the lower end of the valve rod body, and the valve rod body is electrically connected with an external controller. The utility model provides a well head intelligent control valve's valve body seal structure has the technical effect that elasticity is contradicted and is prevented the shutoff and produce the clearance.

Drawings

Fig. 1 is the utility model provides a positive section structure schematic diagram of well head intelligent control valve's valve body seal structure.

Fig. 2 is the utility model provides a well head intelligent control valve's valve body seal structure's elasticity axle sleeve structure schematic diagram of contradicting.

Fig. 3 is the utility model provides a well head intelligent control valve's valve body seal structure's sealed gum cover schematic diagram.

Fig. 4 is the utility model provides a well head intelligent control valve's valve body seal structure's inlet tube head structure sketch map.

In the drawings: 11. an upper side shaft sleeve; 12. a water inlet pipe head; 21. an outboard flange ring wheel; 22. welding an end ring; 23. an intermediate pipeline; 13. a hollow stop collar; 14. a valve stem body; 15. a valve housing; 16. plugging the valve clack; 17. an inner cavity; 18. sealing the rubber sleeve; 81. a top rubber ring; 82. an internal flow passage; 83. embedding a nested ring; 84. a bottom rubber tube; 19. a drain pipe head; 20. the elastic contact shaft sleeve; 101. an inner jacket groove; 102. against the spring; 103. a shaft sleeve housing; 104. sealing the rubber gasket; 105. and a limiting ring groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a valve body sealing structure of a wellhead intelligent control valve comprises a water inlet pipe head 12 and a valve housing 15, wherein the water inlet pipe head 12 is fixedly installed at the left end of the valve housing 15, a water discharge pipe head 19 is arranged at the lower end of the valve housing 15, a valve rod body 14 is arranged at the upper end of the valve housing 15, an inner cavity 17 is arranged inside the valve housing 15, an elastic abutting shaft sleeve 20 is arranged at the joint of the valve housing 15 and the water discharge pipe head 19 at the inner side of the inner cavity 17, a sealing rubber sleeve 18 is arranged on the circumference of the inner side of the elastic abutting shaft sleeve 20, an upper shaft sleeve 11 is arranged at the joint of the valve housing 15 and the valve rod body 14 at the inner side of the inner cavity 17, a hollow limiting sleeve 13 is arranged on the circumference of the inner side of the upper shaft sleeve 11, a plugging valve flap 16 is arranged at the inner side of the lower end of the valve rod body 14, and the valve rod body 14 is electrically connected with an external controller, when using, valve housing 15 is because of water inlet pipe head 12 and drainage pipe head 19, thereby be convenient for and external pipe connection, be convenient for form circulation flow path like this and circulate and use, because of the drive of valve rod organism 14, thereby be convenient for drive shutoff valve clack 16 and remove, shutoff valve clack 16 is in the removal, spacing through upside axle sleeve 11 and hollow stop collar 13, it is more stable like this when removing, shutoff valve clack 16 is when the shutoff, thereby be convenient for during the shutoff arrives the inboard sealed gum cover 18 of elasticity conflict axle sleeve 20, effectively block the inside runner that holds chamber 17 and carry like this, and because of the conflict of elasticity conflict axle sleeve 20 to sealed gum cover 18, make shutoff valve clack 16 can not cause the clearance when the shutoff.

Referring to fig. 1 and 2, in a preferred embodiment, the elastic interference shaft sleeve 20 includes an inner sleeve groove 101, an interference spring 102, a shaft sleeve housing 103, a sealing rubber gasket 104 and a limiting ring groove 105, the inner side of the lower end of the shaft sleeve housing 103 is provided with the sealing rubber gasket 104, the inner side of the upper end of the shaft sleeve housing 103 is provided with the limiting ring groove 105, the inner side of the shaft sleeve housing 103 is provided with the inner sleeve groove 101, the inner side of the inner sleeve groove 101 is located on the shaft sleeve housing 103 and is provided with the interference spring 102, the shaft sleeve housing 103 is mounted and connected on the valve housing 15 through the sealing rubber gasket 104, the shaft sleeve housing 103 of the elastic interference shaft sleeve 20 is mounted and connected on the valve housing 15 through the sealing rubber gasket 104, so that the shaft sleeve housing 103 is convenient to be stably placed and used, the shaft sleeve housing 103 is in the region of the inner sleeve groove 101, so that the interference spring 102 is convenient to be mounted and used, and the interference spring 102 has high strength, so that the elastic interference can be frequently performed, thus, the damage caused by frequent use is avoided, and due to the collision of the collision spring 102, the sealing rubber sleeve 18 on the inner side of the inner sleeve groove 101 is convenient to collide and deform, so that the plugging valve clack 16 is more tightly and firmly sleeved during plugging, and the sealing rubber sleeve 18 is limited and fixed to the sealing rubber sleeve 18 due to the limiting ring groove 105 when deforming, so that the sealing rubber sleeve 18 is effectively prevented from falling off.

Referring to fig. 1, 2 and 3, in a preferred embodiment, the packing rubber 18 includes a top rubber ring 81, an inner flow passage 82, an embedded ring 83 and a bottom rubber tube 84, the bottom rubber tube 84 is disposed in the middle of the lower end of the top rubber ring 81, the inner flow passage 82 is disposed inside the bottom rubber tube 84, an embedded ring 83 is disposed on the outer side of the bottom rubber tube 84 and located at the lower end of the top rubber ring 81, the top rubber ring 81 is mounted and connected to the elastic interference shaft sleeve 20 through the embedded ring 83, the top rubber ring 81 of the packing rubber 18 is mounted and connected to the elastic interference shaft sleeve 20 through the embedded ring 83, so that the top rubber ring 81 and the embedded ring 83 are convenient for stable placement, and the bottom rubber tube 84 is conveniently sleeved on the inner side of the elastic abutting shaft sleeve 20, so that the abutting spring 102 elastically abutting the inner side of the shaft sleeve 20 is conveniently elastically abutted against the bottom rubber tube 84 for use.

Referring to fig. 1 and 4, in a preferred embodiment, the water inlet pipe head 12 includes an outer flange ring 21, a welding end ring 22 and an intermediate pipe 23, the right end of the outer flange ring 21 is provided with the intermediate pipe 23, the right end of the intermediate pipe 23 is provided with the welding end ring 22, the welding end ring 22 is installed and connected to the valve housing 15, the welding end ring 22 of the water inlet pipe head 12 is installed and connected to the valve housing 15 in a welding manner, so that the intermediate pipe 23 is convenient to stably place and use, and the intermediate pipe 23 is convenient to be connected to the outside due to the outer flange ring 21 at the outer end.

Referring to fig. 1, in a preferred embodiment, the sealing flap 16 and the rubber sealing sleeve 18 are fixedly connected in a sleeved manner, and the outer sides of the joints of the sealing flap 16 and the rubber sealing sleeve 18 are in the same straight line, so that the sealing flap 16 and the rubber sealing sleeve 18 are conveniently installed and fixed due to the fixedly connected sleeved portions of the sealing flap 16 and the rubber sealing sleeve 18, and the outer sides of the joints of the sealing flap 16 and the rubber sealing sleeve 18 are in the same straight line, so that no obstruction occurs during use.

Referring to fig. 1, in a preferred embodiment, the circle centers of the plugging valve flap 16, the sealing rubber sleeve 18 and the elastic interference shaft sleeve 20 are located on the same straight line, and the plugging valve flap 16 can be sleeved in the middle of the inside of the sealing rubber sleeve 18, and because the circle centers of the plugging valve flap 16, the sealing rubber sleeve 18 and the elastic interference shaft sleeve 20 are located on the same straight line, the plugging valve flap 16 is convenient for plugging and closing, and the plugging valve flap 16 can be sleeved in the middle of the inside of the sealing rubber sleeve 18, so that the plugging valve flap 16 is convenient for plugging the inside of the sealing rubber sleeve 18.

The working principle is as follows: when using, valve housing 15 is because of water inlet pipe head 12 and drainage pipe head 19, thereby be convenient for and external pipe connection, be convenient for form circulation flow path like this and circulate and use, because of the drive of valve rod organism 14, thereby be convenient for drive shutoff valve clack 16 and remove, shutoff valve clack 16 is in the removal, spacing through upside axle sleeve 11 and hollow stop collar 13, it is more stable like this when removing, shutoff valve clack 16 is when the shutoff, thereby be convenient for during the shutoff arrives the inboard sealed gum cover 18 of elasticity conflict axle sleeve 20, effectively block the inside runner that holds chamber 17 and carry like this, and because of the conflict of elasticity conflict axle sleeve 20 to sealed gum cover 18, make shutoff valve clack 16 can not cause the clearance when the shutoff.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto. The substitution may be of partial structures, devices, method steps, or may be a complete solution. According to the technical scheme of the utility model and utility model thereof think of and equal replacement or change, all should cover within the scope of protection of the utility model.

Claims

1. The utility model provides a well head intelligent control valve's valve body seal structure, includes into water tube head (12) and valve casing (15), its characterized in that, it fixes on the left end position of valve casing (15) to advance the installation of water tube head (12), the lower extreme of valve casing (15) is provided with drainage tube head (19), the upper end of valve casing (15) is provided with valve rod organism (14), the inside of valve casing (15) is provided with inside appearance chamber (17), the junction that the inboard that is located valve casing (15) and drainage tube head (19) of inside appearance chamber (17) is provided with elasticity conflict axle sleeve (20), be provided with sealed gum cover (18) on the inboard a week of elasticity conflict axle sleeve (20), the junction that the inboard that is located valve casing (15) and valve rod organism (14) of inside appearance chamber (17) is provided with upside axle sleeve (11), a hollow limiting sleeve (13) is arranged on the periphery of the inner side of the upper side shaft sleeve (11), a blocking valve clack (16) is arranged on the inner side, located in the inner cavity (17), of the lower end of the valve rod body (14), and the valve rod body (14) is electrically connected with an external controller.

2. The valve body sealing structure of the intelligent control valve at the wellhead according to claim 1, characterized in that the elastic abutting shaft sleeve (20) comprises an inner sleeve groove (101), an abutting spring (102), a shaft sleeve shell (103), a sealing rubber gasket (104) and a limiting ring groove (105), the sealing rubber gasket (104) is arranged on the inner side of the lower end of the shaft sleeve shell (103), the limiting ring groove (105) is arranged on the inner side of the upper end of the shaft sleeve shell (103), the inner sleeve groove (101) is arranged in the shaft sleeve shell (103), the abutting spring (102) is arranged on the inner side of the inner sleeve groove (101), and the shaft sleeve shell (103) is installed and connected on the valve shell (15) through the sealing rubber gasket (104).

3. A valve body sealing structure of a wellhead intelligent control valve according to claim 1, characterized in that the sealing rubber sleeve (18) comprises a top rubber ring (81), an internal flow passage (82), an embedded sleeve ring (83) and a bottom rubber pipe (84), the bottom rubber pipe (84) is arranged in the middle of the lower end of the top rubber ring (81), the internal flow passage (82) is arranged inside the bottom rubber pipe (84), an embedded ring (83) is arranged on the lower end, located on the top rubber ring (81), of the outer side of the bottom rubber pipe (84), and the top rubber ring (81) is installed and connected on the elastic abutting shaft sleeve (20) through the embedded ring (83).

4. The seal structure of the valve body of the wellhead intelligent control valve, according to claim 1, characterized in that the water inlet pipe head (12) comprises an outer flange ring wheel (21), a welding end ring (22) and an intermediate pipeline (23), the intermediate pipeline (23) is arranged at the right end of the outer flange ring wheel (21), the welding end ring (22) is arranged at the right end of the intermediate pipeline (23), and the welding end ring (22) is installed and connected on the valve shell (15).

5. The valve body sealing structure of the intelligent control valve of the wellhead according to the claim 1, characterized in that the plugging valve flap (16) and the sealing rubber sleeve (18) are fixedly connected in a sleeved mode, and the outer sides of the connection positions of the plugging valve flap (16) and the sealing rubber sleeve (18) are in the same straight line.

6. The valve body sealing structure of the wellhead intelligent control valve according to claim 1, characterized in that the circle centers of the plugging valve flap (16), the sealing rubber sleeve (18) and the elastic interference shaft sleeve (20) are positioned on the same straight line, and the plugging valve flap (16) can be sleeved in the middle of the inside of the sealing rubber sleeve (18).