CN211448617U

CN211448617U - Anti-overflow ball valve

Info

Publication number: CN211448617U
Application number: CN202021584340.0U
Authority: CN
Inventors: 李海伟; 姜涛; 苏浩
Original assignee: Dongying Yuanjie Petroleum Machinery Co ltd
Current assignee: Dongying Yuanjie Petroleum Machinery Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2020-09-08
Anticipated expiration: 2030-08-04

Abstract

The utility model belongs to oil field production safety ring protects protector especially relates to anti-overflow ball valve, and this device structure includes the plug body, and the outer tip of plug body is equipped with different specification screw threads to be applicable to different tubular columns, the inside through-hole pressure release structure that is equipped with of plug body, through-hole pressure release structure by the left hand right in proper order for unloading oilhole, toper go up ball seat, pressure release channel, can flow back and flow back plug mounting hole, pressure release channel in be equipped with the clean shot, can flow back and pass through the threaded connection end cap on the plug mounting hole, the outside of pressure release channel and plug body be equipped with the pressure release hole of perpendicular intercommunication, the downthehole relief valve of installing of pressure release, the utility model provides an anti-overflow ball valve can avoid sewage, the oil in the tubular column to spray when having played the tubular column, causes environmental pollution's problem subaerial.

Description

Anti-overflow ball valve

Technical Field

The utility model belongs to oil field oil recovery production safety ring protects protector, especially relates to anti-overflow ball valve.

Background

In real life, the application environment of the plug is very wide, and the simplicity and the usability brought by the plug are undoubted. The plug plays the role of preventing the leakage of the pipeline and sealing. At present, plastic plugs are often seen in the market, and have the advantages of super-strong corrosion resistance, oxidation resistance and good insulating property.

According to the green enterprise of oil field and establish safe environmental protection management regulation, it falls to the ground strictly to forbid sump oil, sewage, when the operation team workover rises, when the tubular column, because the sucker rod breaks off, sand card, wax is stifled, scale deposit, stratum feed liquid can be sufficient etc. reason, is chased after wet and rises, wet tubular column down, in the tubular column when rising the tubular column, the sewage in the pit shaft will spray on ground because of the motion of tubular column, causes environmental pollution, the method of solving at present: the plug valve or the test shell is arranged on the oil pipe, so that the operation time efficiency is seriously influenced, and therefore, the plug ball valve needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to foretell technical problem, can avoid when tripping the tubular column in the tubular column, the sewage in the pit shaft will spray on ground because of the motion of tubular column, cause environmental pollution's problem.

In order to achieve the above object, the utility model discloses a technical scheme be:

anti-overflow ball valve, including the plug body, the outer tip of plug body is equipped with different specification screw threads to be applicable to different tubular columns, the inside through-hole pressure release structure that is equipped with of plug body, through-hole pressure release structure by the left side right in proper order for unloading oilhole, toper ball seat, pressure release passageway, can flow back plug mounting hole, pressure release passageway in be equipped with the clean shot, can flow back through the threaded connection end cap on the plug mounting hole, the outside of pressure release passageway and plug body be equipped with the pressure release hole of perpendicular intercommunication, the pressure release downthehole installation relief valve of pressure release.

Preferably, the plane contained angle A of ball seat on the toper is 60 degrees, can realize that the clean shot is sealed with ball seat on the toper, improves the anti-overflow effect.

Preferably, the plug is provided with a middle through hole and side through holes positioned at two sides of the middle through hole, and the diameter of each side through hole is smaller than that of the middle through hole.

Preferably, the pressure release hole is located the pressure release passageway that is close to the toper ball seat on, can realize the pressure release, ensures that the anti-overflow ball valve plays in the tubular column when tripping the tubular column, the sewage in the pit shaft will spray on ground because of the motion of tubular column, causes environmental pollution's problem.

Preferably, the diameter of the hollow ball is matched with the diameter of the pressure relief channel, so that the hollow ball can move in the pressure relief channel and move towards the conical upper ball seat to realize sealing.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model provides an anti-overflow ball valve, which can avoid the problem of environmental pollution caused by the spraying of sewage in the pipe column and the shaft on the ground due to the movement of the pipe column when the pipe column is pulled down;

1. when the oil pipe is lifted up, the liquid in the oil pipe generates sudden upward movement, the liquid pushes the hollow ball to the conical upper ball seat to achieve the effect of controlling the liquid not to splash, the oil pipe screw thread is removed, the pipe column is lifted, the hollow ball automatically falls to the position of the base at the lower part of the pressure relief channel under the action of the internal and external pressure difference and the liquid suction force, the stable operation of the hollow ball is ensured, and the splashing is prevented;

2. when the anti-overflow ball valve is detached, a pressure relief hole is formed in the side surface of the anti-overflow ball valve for pressure relief;

3. the pressure relief hole is designed, so that sewage in the pressure relief oil pipe can flow into the recovery box, and the environment pollution caused by the lifting of the oil pipe is effectively avoided.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a schematic structural view of the plug;

in the above figures: 1 plug body, 2 clean shot, 3 end caps, 4 pressure release holes, 1.1 unload the oilhole, 1.2 toper ball seat, 1.3 pressure release passageways, 1.4 can flow back plug mounting hole, 3.1 middle through-hole, 3.2 side through-holes.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-2, the anti-overflow ball valve comprises a plug body 1, the outer end of the plug body 1 is provided with threads of different specifications to be suitable for different pipe columns, the interior of the plug body 1 is provided with a through hole pressure relief structure, the through hole pressure relief structure comprises an oil discharge hole 1.1, a conical upper ball seat 1.2, a pressure relief channel 1.3 and a backflow plug mounting hole 1.4 in sequence from left to right, a hollow ball 2 is arranged in the pressure relief channel 1.3, a plug 3 is connected to the backflow plug mounting hole 1.4 through a thread, the pressure relief channel 1.3 and the exterior of the plug body 1 are provided with a pressure relief hole 4 which is vertically communicated, a pressure relief valve is arranged in the pressure relief hole 4, so that the problem of environmental pollution caused by the fact that sewage in a pipe column and a shaft is sprayed on the ground due to the movement of the pipe column when the pipe column is lifted up and the liquid in the oil pipe suddenly floats up due to inertia, at the moment, the liquid pushes the hollow ball 2 to the conical upper ball seat 1.2 to achieve the effect of controlling the liquid not to splash, the oil pipe screw thread is removed to lift the pipe column, the hollow ball 2 automatically falls back to the position of the base at the lower part of the pressure relief channel 1.3 under the action of the internal and external pressure difference and the liquid suction force, the stable operation of the hollow ball 2 is ensured, and the splashing is prevented; liquid produces the excitement effect when going down oil pipe, and liquid is scurried rapidly along the oil pipe inner chamber in the oil pipe, promotes 2 to the toper ball seats 1.2 of clean shot and reaches control liquid and do not spatter, dies clean shot 2, and the top is gone up to the pressure, unable pressure release, can form certain pressure in oil pipe this moment, for producing the thorn when avoiding unloading the anti-overflow ball valve and leaking, so add the pressure release hole in the side and carry out the pressure release.

Further, the plane contained angle A of ball seat 1.2 on the toper is 60 degrees, can realize that the sealed of ball seat 1.2 on clean shot 2 and the toper improves the anti-overflow effect.

Furthermore, the plug 3 is provided with a middle through hole 3.1 and side through holes 3.2 positioned at two sides of the middle through hole, the diameter of the side through hole 3.2 is smaller than that of the middle through hole 3.1, the movement range of the hollow ball 2 is limited, and the anti-overflow effect is improved.

Further, pressure release hole 4 is located the pressure release passageway 1.3 that is close to ball seat 1.2 on the toper, can realize the pressure release, can avoid in the tubular column when tripping the tubular column, the interior sewage of pit shaft will spray on ground because of the motion of tubular column, causes environmental pollution's problem.

Further, the diameter of hollow ball 2 and pressure release channel 1.3's diameter looks adaptation can ensure that hollow ball 2 moves in pressure release channel 1.3, moves to toper ball seat 1.2 direction and realizes sealedly.

The working principle is as follows:

the material of the plug body 1 is nylon material; secondly, the selection of the sealing ball can ensure that the hollow ball 2 is selected to be used because the sealing is achieved under the condition of very small liquid flow, when the plug is used, the plug body 1 is connected to an oil pipe, when the oil pipe is lifted up, the liquid generates sudden upward channeling due to the inertia of the liquid in the oil pipe, at the moment, the liquid pushes the hollow ball 2 to the conical upper ball seat 1.2 to achieve the effect of controlling the liquid not to splash, the oil pipe is unscrewed, the pipe column is lifted up, and the hollow ball 2 automatically falls back to the lower base position of the pressure relief channel 1.3 due to the internal and external pressure difference; when the anti-overflow ball valve is detached, a pressure relief hole is formed in the side face to relieve pressure; the pressure relief hole 4 is designed, so that sewage in the pressure relief oil pipe flows into the recovery box, and the condition that the oil pipe is pulled down to generate an environment pollution beam is effectively avoided.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. Anti-overflow ball valve, including plug body (1), the outer tip of plug body (1) is equipped with screw thread, its characterized in that: the inside through-hole pressure release structure that is equipped with of plug body (1), through-hole pressure release structure by left side right side in proper order for unloading oilhole (1.1), toper on ball seat (1.2), pressure release passageway (1.3), can flow back plug mounting hole (1.4), pressure release passageway (1.3) in be equipped with clean shot (2), can flow back through threaded connection end cap (3) on plug mounting hole (1.4), clean shot (2) are in the toper on ball seat (1.2) and end cap (3) between the motion, pressure release passageway (1.3) and the outside of plug body (1) be equipped with pressure release hole (4) of perpendicular intercommunication, pressure release hole (4) in install the relief valve.

2. The spill-resistant ball valve of claim 1, wherein: the plane included angle A of the conical upper ball seat (1.2) is 60 degrees.

3. The spill-resistant ball valve of claim 1, wherein: the plug (3) is provided with a middle through hole (3.1) and side through holes (3.2) positioned at two sides of the middle through hole, and the diameter of each side through hole (3.2) is smaller than that of the middle through hole (3.1).

4. The spill-resistant ball valve of claim 1, wherein: the pressure relief hole (4) is positioned on the pressure relief channel (1.3) close to the conical upper ball seat (1.2).

5. The spill-resistant ball valve of claim 1, wherein: the diameter of the hollow ball (2) is matched with that of the pressure relief channel (1.3).