CN213745106U - Exhaust valve - Google Patents
Exhaust valve Download PDFInfo
- Publication number
- CN213745106U CN213745106U CN202022145024.XU CN202022145024U CN213745106U CN 213745106 U CN213745106 U CN 213745106U CN 202022145024 U CN202022145024 U CN 202022145024U CN 213745106 U CN213745106 U CN 213745106U
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- ball
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- sealing
- seat
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Abstract
An exhaust valve comprises a body, a valve body, a sealing seat, a ball seat, a steel ball or ceramic ball, a piston and an exhaust port; the valve body is arranged on the body, and the interior of the valve body is hermetically communicated with the interior of the body; the piston, the sealing seat, the ball seat and the steel ball or ceramic ball are arranged in the valve body, the sealing seat is positioned in the middle of the valve body, the steel ball or ceramic ball and the piston are respectively positioned on two sides of the sealing seat, the piston can be in sealing connection with the sealing seat when moving, and the sealing seat can be blocked when the steel ball or ceramic ball moves; the steel ball or the ceramic ball is arranged on the ball seat; the exhaust port is located on the side wall of the valve body on one side of the piston. The utility model discloses a steel ball or the double seal of ceramic ball and piston have guaranteed the sealing after the gas outgoing. The traditional cable and steel wire operation mode is improved, and the field operation safety is effectively improved.
Description
Technical Field
The utility model belongs to the technical field of oil field cable, steel wire operation, in particular to discharge valve.
Background
In the traditional operation process of cables and steel wires in an oil field, after a wellhead blowout preventer is installed, liquid needs to be injected into the blowout preventer before a well is opened, and in the liquid injection process, the internal temperature of the internal air of the wellhead blowout preventer is increased due to compression, so that the cables and the steel wires are damaged, and accidents are caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an exhaust valve to solve above-mentioned problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an exhaust valve comprises a body, a valve body, a sealing seat, a ball seat, a steel ball or ceramic ball, a piston and an exhaust port; the valve body is arranged on the body, and the interior of the valve body is hermetically communicated with the interior of the body; the piston, the sealing seat, the ball seat and the steel ball or ceramic ball are arranged in the valve body, the sealing seat is positioned in the middle of the valve body, the steel ball or ceramic ball and the piston are respectively positioned on two sides of the sealing seat, the piston can be in sealing connection with the sealing seat when moving, and the sealing seat can be blocked when the steel ball or ceramic ball moves; the steel ball or the ceramic ball is arranged on the ball seat; the exhaust port is located on the side wall of the valve body on one side of the piston.
Further, the body and the valve body are communicated through two sealing pipes which are respectively a first sealing pipe and a second sealing pipe, the first sealing pipe is located between the end portions of the piston and the valve body, and the second sealing pipe is located between the end portions of the ball seat and the valve body.
Furthermore, both ends of the valve body are sealed through plugs.
Furthermore, a spring is sleeved on the piston.
Further, the vent valve is installed between the sealing head of the blowout preventer and the blowout preventer.
Compared with the prior art, the utility model discloses there is following technological effect:
the utility model discloses install between blowout preventer's sealed head and lubricator, can discharge the intraductal gas of blowout preventer through the gas vent in the liquid injection process, the structure is that the gas vent is in normally open state in the liquid injection process, discharges gas blowout preventer, protection cable, steel wire and get rid of the potential safety hazard, and after liquid injection is accomplished, liquid pressure drives steel ball or ceramic ball to rise when rising, can seal the gas vent automatically at the seal receptacle; and then the liquid does not have the exhaust vent, and liquid promotes the piston pressurized downward motion through upper end sealed tube department, realizes the secondary seal at seal receptacle department, has realized the double seal of steel ball or ceramic ball and piston, has guaranteed the sealed after the gas discharge. The traditional cable and steel wire operation mode is improved, and the field operation safety is effectively improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view when sealed.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
referring to fig. 1 and 2, an exhaust valve is characterized by comprising a body 1, a valve body 2, a sealing seat 5, a ball seat 6, a steel ball or ceramic ball 9, a piston 3 and an exhaust port 10; the valve body 2 is arranged on the body 1, and the interior of the valve body 2 is hermetically communicated with the interior of the body 1; the piston 3, the sealing seat 5, the ball seat 6 and the steel ball or ceramic ball 9 are arranged in the valve body 2, the sealing seat 5 is positioned in the middle of the valve body 2, the steel ball or ceramic ball 9 and the piston 3 are respectively positioned on two sides of the sealing seat 5, the piston 3 can be in sealing connection with the sealing seat 5 when moving, and the sealing seat 5 can be blocked when the steel ball or ceramic ball 9 moves; the steel ball or the ceramic ball 9 is arranged on the ball seat 6; the exhaust port 10 is located on the side wall of the valve body 2 on the side of the piston 3.
The body 1 and the valve body 2 are communicated through two sealing pipes, namely a first sealing pipe 11 and a second sealing pipe 12, the first sealing pipe 11 is positioned between the end parts of the piston 3 and the valve body 2, and the second sealing pipe 12 is positioned between the end parts of the ball seat 6 and the valve body 2.
Both ends of the valve body 2 are sealed by plugs 7.
The piston 3 is sleeved with a spring 4.
The structure is that the exhaust port is in a normally open state in the liquid injection process, the gas is exhausted out of the blowout preventer, cables and steel wires are protected, potential safety hazards are eliminated, after liquid injection is completed, the steel ball or the ceramic ball is driven to rise when the liquid pressure rises, and the exhaust port can be automatically sealed at the sealing seat; and then the liquid does not have the exhaust vent, and liquid promotes the piston pressurized downward motion through upper end sealed tube department, realizes the secondary seal at seal receptacle department, has realized the double seal of steel ball or ceramic ball and piston, has guaranteed the sealed after the gas discharge. The traditional cable and steel wire operation mode is improved, and the field operation safety is effectively improved.
Claims (5)
1. An exhaust valve is characterized by comprising a body (1), a valve body (2), a sealing seat (5), a ball seat (6), a steel ball or ceramic ball (9), a piston (3) and an exhaust port (10); the valve body (2) is arranged on the body (1), and the interior of the valve body (2) is hermetically communicated with the interior of the body (1); a piston (3), a sealing seat (5), a ball seat (6) and a steel ball or ceramic ball (9) are arranged in the valve body (2), the sealing seat (5) is positioned in the middle of the valve body (2), the steel ball or ceramic ball (9) and the piston (3) are respectively positioned on two sides of the sealing seat (5), the piston (3) can be in sealing connection with the sealing seat (5) when moving, and the sealing seat (5) can be blocked when the steel ball or ceramic ball (9) moves; the steel ball or the ceramic ball (9) is arranged on the ball seat (6); the exhaust port (10) is positioned on the side wall of the valve body (2) at one side of the piston (3).
2. A vent valve according to claim 1, wherein the body (1) and the valve body (2) are in communication via two sealing ducts, a first sealing duct (11) and a second sealing duct (12), the first sealing duct (11) being located between the piston (3) and the end of the valve body (2), the second sealing duct (12) being located between the ball seat (6) and the end of the valve body (2).
3. An exhaust valve according to claim 1, characterised in that both ends of the valve body (2) are sealed by plugs (7).
4. An exhaust valve according to claim 1, characterized in that the piston (3) is provided with a spring (4) in a sleeved manner.
5. The vent valve of claim 1, wherein the vent valve is mounted between a seal head of the blowout preventer and the lubricator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022145024.XU CN213745106U (en) | 2020-09-25 | 2020-09-25 | Exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022145024.XU CN213745106U (en) | 2020-09-25 | 2020-09-25 | Exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213745106U true CN213745106U (en) | 2021-07-20 |
Family
ID=76846355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022145024.XU Active CN213745106U (en) | 2020-09-25 | 2020-09-25 | Exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213745106U (en) |
-
2020
- 2020-09-25 CN CN202022145024.XU patent/CN213745106U/en active Active
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