CN210598919U

CN210598919U - Oil field underground pipeline air release valve

Info

Publication number: CN210598919U
Application number: CN201921189312.6U
Authority: CN
Inventors: 王成; 李振; 曹亮亮; 魏猛; 周辉; 李志磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-05-22
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses an oil field pipeline bleed valve in pit relates to the oilfield equipment field, and this oil field pipeline bleed valve in pit includes communicating pipe, and communicating pipe one end is furnished with the end cover, and communicating pipe intercommunication has the gas release pipe, is equipped with the sealing plug in the gas release pipe, and the sealing plug tip passes through the spring to be connected with communicating pipe, and the sealing plug is opened has a plurality of gas release grooves, and sealing plug one end is equipped with rings, is fixed to be equipped with the stay cord on the rings. The oil field underground pipeline air release valve is simple in design, high in use reliability, capable of releasing gas in an oil field underground pipeline quickly, good in sealing performance and not prone to failure.

Description

Oil field underground pipeline air release valve

Technical Field

The utility model relates to an oilfield equipment field, concretely relates to pipeline bleed valve in pit in oil field.

Background

In the underground pipeline of the oil field, methane or coal gas and other gases are inevitably introduced in the oil pumping process, so that the internal air pressure of the pipeline is overlarge, the inner wall of the pipeline bears huge pressure, and the pipeline is easy to break. Therefore, the gas in the oil field downhole pipeline needs to be released frequently, and the installation of the air release valve on the oil field downhole pipeline is the most common air release method. However, the existing oil field underground pipeline deflation valve is complex in design, so that the operation is inconvenient, and the valve is easy to break down and fail.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides an oil field pipeline bleed valve in pit, and the design is simple, uses the good reliability, can emit the gas in the oil field pipeline in pit fast, and the leakproofness is good moreover, is difficult to break down.

In order to achieve the above object, the present invention provides the following technical solutions:

this oil field is pipeline bleed valve in pit includes both ends open-ended pipe form communicating pipe, protruding screw thread and female screw thread have been attacked respectively to communicating pipe both ends, communicating pipe is equipped with protruding screw thread one end and is furnished with the end cover, communicating pipe side intercommunication has the tubulose gas release pipe of circle, be equipped with the sealing plug in the gas release pipe, the mutual interference fit of sealing plug and gas release pipe, the sealing plug tip passes through spring and communicating pipe inner wall fixed connection, the sealing plug is located the inside outer wall of gas release pipe and opens and has a plurality of gas release grooves, the sealing plug is located the outside one end of gas release pipe and is equipped with annular rings.

As a further optimization of the technical scheme, the communicating pipe and the gas discharging pipe are both made of stainless steel and are connected through welding.

As a further optimization of the technical scheme, the end cover is made of stainless steel, and the end cover and the communicating pipe are in threaded fit with each other.

As a further optimization of the technical scheme, the sealing plug and the hanging ring are both made of rubber materials, and the sealing plug and the hanging ring are of an integral structure.

As a further optimization of the technical scheme, the spring is made of spring steel, the spring is connected with the inner wall of the communicating pipe through welding, and the spring is connected with the end part of the sealing plug through a screw.

The beneficial effect of adopting above technical scheme is: when the air release valve for the underground pipeline of the oil field is installed, the concave thread of the communicating pipe can be screwed and connected with the convex thread of the underground pipeline of the oil field, so that the communicating pipe is fixedly installed on the underground pipeline of the oil field. The end part of the pull rope is placed above the oil field well, the spring forces the sealing plug to be tightly plugged into the air discharge pipe at ordinary times, and the communicating pipe is in a sealing state at the moment. When the gas needs to be discharged, the pull rope can be pulled to drive the sealing plug to move out of the gas discharge pipe for a certain distance, the stretching spring is used for stretching out part of the gas discharge groove, and the gas in the underground pipeline of the oil field can be discharged from the gap between the gas discharge groove and the gas discharge pipe. When the stretching is released, the spring rebounds to force the sealing plug to return to the original position of the air release pipe, and the air release pipe can be tightly plugged by the sealing plug. The oil field underground pipeline air release valve is simple in design, high in use reliability, capable of releasing gas in an oil field underground pipeline quickly, good in sealing performance and not prone to failure.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of the air release valve of the oil field downhole pipeline of the present invention;

figure 2 is the utility model discloses oil field pipeline bleed valve's in pit structure section.

Wherein, 1-communicating pipe, 2-air release pipe, 3-sealing plug, 4-end cap, 5-spring, 6-air release groove, 7-hanging ring, 8-pull rope.

Detailed Description

The preferred embodiment of the air release valve of the oil field downhole pipeline of the invention is described below with reference to the accompanying drawings.

Fig. 1 and fig. 2 show the specific implementation of the air release valve of the oil field downhole pipeline of the utility model:

combine figure 1 and fig. 2, this oil field pipeline bleed valve in pit includes both ends open-ended pipe form communicating pipe 1, convex screw thread and concave screw thread have been attacked respectively to 1 both ends communicating pipe, 1 communicating pipe is equipped with convex screw thread one end and is furnished with

end cover

4, 1 side intercommunication communicating pipe has pipe form gas release pipe 2, be equipped with sealing plug 3 in the gas release pipe 2, sealing

plug

3 and 2 mutual interference fit of gas release pipe, 3 tip of sealing plug pass through

spring

5 and 1 inner wall fixed connection communicating pipe, sealing plug 3 is located the inside outer wall of gas release pipe 2 and opens and have a plurality of gas release grooves 6, sealing plug 3 is located 2 outside one ends of gas release pipe and is equipped with annular rings 7, the last fixed system of rings 7 has stay cord 8.

Communicating pipe 1 and gas release pipe 2 are made by the stainless steel, and are sturdy and durable, and corrosion resisting property is good, and communicating pipe 1 and gas release pipe 2 pass through welded connection. The end cover 4 is made of stainless steel, is firm and durable, has good corrosion resistance, is in threaded fit with the communicating pipe 1, can be opened and closed freely, has good sealing performance, and can be opened to facilitate maintenance of parts in the communicating pipe 1. The sealing plug 3 and the hanging ring 7 are both made of rubber materials, the elasticity is good, the sealing performance is good, and the sealing plug 3 and the hanging ring 7 are of an integral structure. The spring 5 is made of spring steel, the hardness is high, the elasticity is good, the spring 5 is connected with the inner wall of the communicating pipe 1 through welding, and the spring 5 is connected with the end part of the sealing plug 3 through a screw.

When the air release valve for the underground pipeline of the oil field is installed, the concave thread of the communicating pipe 1 can be screwed and connected with the convex thread of the underground pipeline of the oil field, so that the communicating pipe 1 is fixedly installed on the underground pipeline of the oil field. The end part of the pull rope 8 is placed above the oil field well, the spring 5 forces the sealing plug 3 to be tightly plugged into the air release pipe 2 at ordinary times, and the communicating pipe 1 is in a sealing state at the moment. When the gas needs to be discharged, the pull rope 8 can be pulled to drive the sealing plug 3 to move out of the gas discharge pipe 2 for a certain distance, the extension spring 5 leaks part of the gas discharge groove 6, and the gas in the underground pipeline of the oil field can be leaked from the gap between the gas discharge groove 6 and the gas discharge pipe 2. When the stretching is released, the spring 5 rebounds to force the sealing plug 3 to return to the original position of the air release pipe, and the air release pipe 2 can be tightly plugged by sealing. The oil field underground pipeline air release valve is simple in design, high in use reliability, capable of releasing gas in an oil field underground pipeline quickly, good in sealing performance and not prone to failure.

The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept, and these all fall into the protection scope of the present invention.

Claims

1. The utility model provides an oil field pipeline bleed valve in pit which characterized in that: the oil field is pipe form communicating pipe (1) that the pipeline bleed valve in pit includes both ends open-ended, protruding screw thread and concave screw thread have been attacked respectively to communicating pipe (1) both ends, communicating pipe (1) is equipped with protruding screw thread one end and is furnished with end cover (4), communicating pipe (1) side intercommunication has pipe form gas release pipe (2), be equipped with sealing plug (3) in gas release pipe (2), sealing plug (3) and gas release pipe (2) interference fit each other, spring (5) and communicating pipe (1) inner wall fixed connection are passed through to sealing plug (3) tip, sealing plug (3) are located the outer wall of gas release pipe (2) inside and open and have a plurality of gas release groove (6), sealing plug (3) are located gas release pipe (2) outside one end and are equipped with annular rings (7), rings (7) are gone up to be fixed to have.

2. The oilfield downhole manifold purge valve of claim 1, wherein: the communicating pipe (1) and the gas discharging pipe (2) are both made of stainless steel, and the communicating pipe (1) and the gas discharging pipe (2) are connected through welding.

3. The oilfield downhole manifold purge valve of claim 1, wherein: the end cover (4) is made of stainless steel, and the end cover (4) is in threaded fit with the communicating pipe (1).

4. The oilfield downhole manifold purge valve of claim 1, wherein: the sealing plug (3) and the hanging ring (7) are both made of rubber materials, and the sealing plug (3) and the hanging ring (7) are of an integral structure.

5. The oilfield downhole manifold purge valve of claim 1, wherein: the spring (5) is made of spring steel, the spring (5) is connected with the inner wall of the communicating pipe (1) through welding, and the spring (5) is connected with the end part of the sealing plug (3) through a screw.