CN217784275U

CN217784275U - Manual-automatic dual-purpose pneumatic control two-position three-way valve of wellhead control system

Info

Publication number: CN217784275U
Application number: CN202221576853.6U
Authority: CN
Inventors: 黄武; 罗劲松; 朱文亮
Original assignee: Wuhan Tolman New Energy Technology Co ltd
Current assignee: Wuhan Tolman New Energy Technology Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-11-11
Anticipated expiration: 2032-06-22

Abstract

The utility model discloses a manual-automatic dual-purpose pneumatic control two-position three-way valve of a wellhead control system, which comprises a valve body, wherein an end cover is installed at the top of the valve body, a pressure rod is installed at the center of the top of the end cover, the bottom of the pressure rod penetrates through the end cover in a sliding manner and is provided with a piston rod, a first spring is sleeved on the surface of the bottom of the piston rod, and a first steel ball is installed at the bottom of the piston rod; the valve comprises a valve body, a first steel ball, a second steel ball, a striker, a valve core sleeve, a plug and a valve core, wherein the striker is arranged at the bottom of the first steel ball, the second steel ball is arranged at the bottom of the striker, the valve core sleeve is arranged below the striker and above the second steel ball, the plug is inserted into the bottom of the valve body, and the top of the plug is attached to the bottom of the second steel ball. The invention has the advantages that the handle is arranged, the manual-automatic integrated type emergency cut-off device is manual-operated when no air source pressure exists, the emergency cut-off is possible accidents, the lower seal is a hard seal or a soft seal with the same hard seal, and the anti-scouring and anti-high pressure capabilities are extremely high.

Description

Manual-automatic dual-purpose pneumatic control two-position three-way valve of wellhead control system

Technical Field

The utility model relates to a well head control system technical field specifically is a well head control system manual from dual-purpose gas accuse two-position three-way valve.

Background

A safety valve control system for oil field well mouth is used for the related items of oil field production units, oil mechanical equipment manufacturers and scientific research units, provides safety protection for the oil gas well mouth of the field unattended environment, and needs to use a manual-automatic pneumatic control two-position three-way valve when the safety valve control system for the oil field well mouth is used. When the existing manual-automatic dual-purpose pneumatic control two-position three-way valve is used, the stability is poor, and the use tolerance of a valve body is reduced, so that a manual-automatic dual-purpose pneumatic control two-position three-way valve of a wellhead control system needs to be provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a well head control system hand is from two-position three-way valve of dual-purpose gas accuse possesses durable and the good advantage of stability to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a manual-automatic dual-purpose pneumatic control two-position three-way valve of a wellhead control system comprises a valve body, wherein an end cover is installed at the top of the valve body, a pressure rod is installed in the center of the top of the end cover, the bottom of the pressure rod penetrates through the end cover in a sliding mode and is provided with a piston rod, a first spring is sleeved on the surface of the bottom of the piston rod, and a first steel ball is installed at the bottom of the piston rod;

the valve comprises a valve body, a first steel ball, a second steel ball, a valve core sleeve, a plug and a valve core, wherein the bottom of the first steel ball is provided with a firing pin, the bottom of the firing pin is provided with the second steel ball, the valve core sleeve is arranged below the firing pin and above the second steel ball, the bottom of the valve body is spliced with the plug, and the top of the plug is attached to the bottom of the second steel ball.

Preferably, the top of depression bar is installed the handle, holding screw is installed to one side of handle, the handle passes through holding screw and is connected with the surface of depression bar.

Preferably, the top of the plug is provided with a second retaining ring, and the second retaining ring is positioned inside the valve body.

Preferably, a second spring is installed inside the plug, and the top of the second spring is attached to the surface of the second steel ball.

Preferably, a first check ring is sleeved outside the plug, the first check ring is attached to the surface of the valve body, and a first O-shaped ring is installed at the top of the first check ring.

Preferably, the surface of the piston rod is sleeved with a second O-shaped ring, and the surface of the second O-shaped ring is attached to the inner wall of the valve body.

Preferably, the surface of the pressure lever is sleeved with a third O-shaped ring, and the surface of the third O-shaped ring is attached to the inner cavity of the end cover.

Preferably, a fourth O-shaped ring is arranged between the piston rod and the valve body, a fifth O-shaped ring is arranged between the end cover and the valve body, and a sixth O-shaped ring is sleeved between the first check ring and the valve body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the handle, possess manual-automatic, when no air source pressure, but manually operation promptly cuts off the accident that probably appears, and the lower seal is sealed or equally hard sealed soft sealing firmly, and its antiscour anti highly compressed ability is high.

2. The utility model discloses a set up exit and switch on, large-traffic big CV value lets back-end system pressure reach appointed pressure fast. The upper valve rod is riveted with the steel ball, the opening size is fixed, the first steel ball is prevented from falling to influence the pressure relief efficiency, all levels of main seals and auxiliary seals of the valve body are the same one-level steps, the universality is strong, the processing is convenient, the precision is easy to guarantee, the performance is stable, the after-sale maintenance is realized, and the maintenance machine is convenient.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a front sectional view of the present invention;

FIG. 3 is a front sectional view of the handle of the present invention;

fig. 4 is a schematic structural diagram of the present invention.

In the figure: 1. a plug; 2. a second spring; 3. a valve body; 4. a first retainer ring; 5. a first O-ring; 6. a second steel ball; 7. a valve core sleeve; 8. a striker; 9. a first steel ball; 10. a fourth O-ring; 11. a first spring; 12. a piston rod; 13. a third O-ring; 14. an end cap; 15. tightening the screw; 16. a handle; 17. a pressure lever; 18. a fifth O-ring; 19. a second O-ring; 20. a second retainer ring; 21. a sixth O-ring; 23. a pilot port; 24. a discharge port; 25. an outlet; 26. and (4) an inlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a manual-automatic dual-purpose pneumatic control two-position three-way valve of a wellhead control system comprises a valve body 3, wherein an end cover 14 is installed at the top of the valve body 3, a pressure rod 17 is installed at the center of the top of the end cover 14, the bottom of the pressure rod 17 penetrates through the end cover 14 in a sliding mode and is provided with a piston rod 12, a first spring 11 is sleeved on the surface of the bottom of the piston rod 12, and a first steel ball 9 is installed at the bottom of the piston rod 12;

the bottom of the first steel ball 9 is provided with a firing pin 8, the bottom of the firing pin 8 is provided with a second steel ball 6, a valve core sleeve 7 is arranged below the firing pin 8 and above the second steel ball 6, the bottom of the valve body 3 is inserted with a plug 1, and the top of the plug 1 is attached to the bottom of the second steel ball 6.

The top of the compression bar 17 is provided with a handle 16, one side of the handle 16 is provided with a set screw 15, and the handle 16 is connected with the surface of the compression bar 17 through the set screw 15.

The top of the choke plug 1 is provided with a second stop ring 20, and the second stop ring 20 is positioned inside the valve body 3. And a second spring 2 is arranged in the plug 1, and the top of the second spring 2 is attached to the surface of the second steel ball 6. First retaining ring 4 has been cup jointed to end cap 1's outside, and first retaining ring 4 is laminated with the surface of valve body 3, and first O type circle 5 is installed at the top of first retaining ring 4.

The surface of the piston rod 12 is sleeved with a second O-shaped ring 19, and the surface of the second O-shaped ring 19 is attached to the inner wall of the valve body 3. The surface of the pressure lever 17 is sleeved with a third O-shaped ring 13, and the surface of the third O-shaped ring 13 is attached to the inner cavity of the end cover 14. A fourth O-shaped ring 10 is arranged between the piston rod 12 and the valve body 3, a fifth O-shaped ring 18 is arranged between the end cover 14 and the valve body 3, and a sixth O-shaped ring 21 is sleeved between the first retainer ring 4 and the valve body 3.

Wherein, discharge port 24 has been seted up to one side of valve body 3 and the corresponding department that is located first steel ball 9, inlet 26 has been seted up to one side of valve body 3 and the corresponding department that is located second steel ball 6, outlet 25 has been seted up to one side of keeping away from discharge port 24 of valve body 3, and leading mouth 23 has been seted up at the top of valve body 3.

When the handle 16 is in an upper position, the pilot port is not in a ventilation state, the valve is in a normally closed state, namely the inlet and the outlet are closed, and the outlet is communicated with the discharge port; when the handle 16 is screwed down or the pilot port is in an air-through state, the inlet is communicated with the outlet, the pressure is connected into a pipeline system connected with the outlet, when the pilot port loses air and the handle 16 is screwed to the upper position, the second spring 2 at the bottom of the valve props against the second steel ball 6 to reset, the medium of the inlet and the outlet is cut off, and the medium pressure of the outlet system is released from the discharge port through the through hole of the striker 8; the pilot port is not in a ventilation state, the valve is in a normally closed state, namely the inlet and the outlet are closed, and the outlet is communicated with the discharge port; when the pilot port is in a ventilation state, the inlet is communicated with the outlet, the pressure is connected into a pipeline system connected with the outlet, when the pilot port loses air, the second spring 2 at the bottom of the valve props against the sealing steel ball to reset, the medium of the inlet and the outlet is cut off, and the medium pressure of the outlet system is released from the discharge port through the striker 8 and the through hole. The purpose of the valve design is to control the high pressure hydraulic output using a relatively low pilot pressure. When the pilot supply pressure is lost, the inlet port closes and the pressure in the control circuit is vented.

The manual-automatic integrated type underground safety valve has the advantages that manual operation can be achieved when no air source pressure exists, the valve can be opened by a manual device, and the rear-end pressure is kept, so that the upper-surface safety valve and the underground safety valve are controlled to be opened and closed. The lower seal is a hard seal or a soft seal with the same hard seal, and the lower seal has extremely high anti-scouring and high-pressure resistance. The special material and high strength firing pin 8 can bear ultrahigh pressure and meet the service life of tens of thousands of times of products. The inlet and the outlet are communicated, and the large-flow large CV value enables the pressure of the back-end system to quickly reach the specified pressure. The upper valve rod rivets the steel ball, and fixed aperture size prevents that first steel ball 9 from dropping and influencing the efficiency of releasing of pressure, and the main seal at each level of valve body 3 is sealed with the assistance and is one-level step together, and the commonality is strong, and processing is convenient, and the precision is guaranteed easily, and the stable performance overhauls after sale, and the maintenance machine is convenient.

Claims

1. The utility model provides a well head control system manual from dual-purpose gas accuse two-position three-way valve, includes valve body (3), its characterized in that: an end cover (14) is installed at the top of the valve body (3), a pressure lever (17) is installed at the center of the top of the end cover (14), the bottom of the pressure lever (17) penetrates through the end cover (14) in a sliding mode and is provided with a piston rod (12), a first spring (11) is sleeved on the surface of the bottom of the piston rod (12), and a first steel ball (9) is installed at the bottom of the piston rod (12);

the novel valve is characterized in that a firing pin (8) is installed at the bottom of the first steel ball (9), a second steel ball (6) is installed at the bottom of the firing pin (8), a valve core sleeve (7) is installed below the firing pin (8) and above the second steel ball (6), a plug (1) is inserted into the bottom of the valve body (3), and the top of the plug (1) is attached to the bottom of the second steel ball (6).

2. The manual-automatic dual-purpose pneumatic-control two-position three-way valve of the wellhead control system according to claim 1, which is characterized in that: handle (16) are installed at the top of depression bar (17), holding screw (15) are installed to one side of handle (16), handle (16) are through holding screw (15) and depression bar (17) surface connection.

3. The manual-automatic dual-purpose pneumatic control two-position three-way valve of the wellhead control system according to claim 1, which is characterized in that: and a second check ring (20) is arranged at the top of the plug (1), and the second check ring (20) is positioned in the valve body (3).

4. The manual-automatic dual-purpose pneumatic-control two-position three-way valve of the wellhead control system according to claim 1, which is characterized in that: and a second spring (2) is arranged in the plug (1), and the top of the second spring (2) is attached to the surface of the second steel ball (6).

5. The manual-automatic dual-purpose pneumatic-control two-position three-way valve of the wellhead control system according to claim 1, which is characterized in that: first retaining ring (4) have been cup jointed to the outside of end cap (1), the surface laminating of first retaining ring (4) and valve body (3), first O type circle (5) are installed to the top of first retaining ring (4).

6. The manual-automatic dual-purpose pneumatic control two-position three-way valve of the wellhead control system according to claim 1, which is characterized in that: and the surface of the piston rod (12) is sleeved with a second O-shaped ring (19), and the surface of the second O-shaped ring (19) is attached to the inner wall of the valve body (3).

7. The manual-automatic dual-purpose pneumatic control two-position three-way valve of the wellhead control system according to claim 1, which is characterized in that: and the surface of the pressure lever (17) is sleeved with a third O-shaped ring (13), and the surface of the third O-shaped ring (13) is attached to the inner cavity of the end cover (14).

8. The manual-automatic dual-purpose pneumatic-control two-position three-way valve of the wellhead control system according to claim 5, which is characterized in that: a fourth O-shaped ring (10) is arranged between the piston rod (12) and the valve body (3), a fifth O-shaped ring (18) is arranged between the end cover (14) and the valve body (3), and a sixth O-shaped ring (21) is sleeved between the first check ring (4) and the valve body (3).