CN217898917U

CN217898917U - Oil gas recovery shutoff ball check valve

Info

Publication number: CN217898917U
Application number: CN202221699554.1U
Authority: CN
Inventors: 陈夫振; 王兵; 刘洪涛; 刘洋洋; 郭真
Original assignee: Shandong Wantong Petrochemical Group Co ltd
Current assignee: Shandong Wantong Petrochemical Group Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-11-25
Anticipated expiration: 2032-07-04

Abstract

The utility model relates to a vapor recovery system shutoff floater check valve, including valve pocket, first pipeline, second pipeline and third pipeline, first pipeline the second pipeline and the third pipeline all communicates to the valve pocket, first pipeline communicate to the side of valve pocket, the second pipeline communicate to the bottom of valve pocket, the third pipeline communicate to the top of valve pocket, be provided with the shutoff floater in the valve pocket, the shutoff floater is used for the shutoff the second pipeline or the third pipeline, first pipeline the third pipeline way and all be provided with the check valve in the second pipeline way. After the oil liquid enters the valve cavity through the first pipeline, the plugging floating ball can float upwards and plug the third pipeline, and the oil liquid is discharged only through the second pipeline at the bottom; when gas enters, the liquid level in the valve cavity is lowered, and the blocking floating ball is lowered to expose the third pipeline, so that the gas is discharged; the check valve can prevent the backflow of oil or gas, and the separation reliability is guaranteed.

Description

Oil gas recovery shutoff ball check valve

Technical Field

The utility model relates to an oil gas recovery field, more specifically, the utility model relates to an oil gas recovery shutoff flotation ball check valve.

Background

The oil gas recovery means that volatile combustible gas is collected in the processes of oil production, transportation, loading and unloading, so as to achieve the purposes of environmental protection and recycling.

In the process of oil transportation, especially in the process of pipeline transportation of crude oil and the like, a large amount of volatile gas is usually mixed in oil, and if the gas amount is large, a gas lock phenomenon is caused, and the oil pumping operation is influenced. In the prior art, a large oil tank is usually adopted to separate oil gas and then convey the separated oil gas respectively, and the separating tank not only occupies a large area, but also has low separating efficiency and is easy to generate a backflow phenomenon.

Therefore, a new type of oil-gas recovery and separation device is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at solve current vapor recovery system separator area great, and the relatively poor problem of separation effect.

According to the utility model discloses an aspect provides an oil gas recovery shutoff floater check valve, including valve pocket, first pipeline, second pipeline and third pipeline, first pipeline the second pipeline and the third pipeline all communicates to the valve pocket, first pipeline communicates to the side of valve pocket, the second pipeline communicates to the bottom of valve pocket, the third pipeline communicates to the top of valve pocket, be provided with the shutoff floater in the valve pocket, the shutoff floater is used for the shutoff the second pipeline or the third pipeline, first pipeline the third pipeline way and all be provided with the check valve in the second pipeline way.

Preferably, the diameter of the valve cavity is not less than twice of the diameter of the blocking floating ball, and the third pipeline is arranged right above the second pipeline.

Preferably, a guide cage is arranged in the valve cavity, and openings at the upper end and the lower end of the guide cage are respectively connected with the third pipeline and the second pipeline.

Preferably, the guide cage comprises a plurality of polished rods arranged in parallel, and the diameter of a cylinder enclosed by the polished rods is matched with the diameter of the blocking floating ball.

Preferably, the check valve includes spring, retaining ring and end cap, the spring promotes all the time the end cap is towards the retaining ring, the retaining ring sets up in the incoming liquid direction.

The utility model has the technical effects that the device has simple structure, can be directly connected to an oil-gas conveying pipeline, the plugging floating ball can float and plug the third pipeline after oil enters the valve cavity through the first pipeline, and the oil is only discharged through the second pipeline at the bottom; when gas enters, the liquid level in the valve cavity is reduced, and the plugging floating ball is reduced to expose the third pipeline, so that the gas is discharged, the oil-gas separation is greatly facilitated, the volume is reduced, and the problem that the gas is discharged through the third pipeline when the oil pressure is too high is solved; the check valves on the pipelines can prevent the backflow of oil or gas, and the separation reliability is guaranteed.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is the structure schematic diagram of the oil gas recovery shutoff ball check valve of the embodiment of the utility model.

Fig. 2 is a schematic cross-sectional view of the guide cage of fig. 1.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

Examples

As shown in fig. 1 to fig. 2, the oil-gas recovery and separation device in this embodiment includes a valve chamber 100, a first pipeline 210, a second pipeline 220, and a third pipeline 230, the first pipeline 210, the second pipeline 220, and the third pipeline 230 are all connected to the valve chamber 100, the first pipeline 210 is connected to the side of the valve chamber 100, the second pipeline 220 is connected to the bottom of the valve chamber 100, the third pipeline 230 is connected to the top of the valve chamber 100, a blocking float 110 is disposed in the valve chamber 100, and the blocking float 110 is used for blocking the second pipeline 220 or the third pipeline 230.

Check valves are disposed in the first, third and

second pipelines

210, 230 and 220.

In the using process, the first pipeline 210 is connected into an oil gas conveying pipeline, a section of volatile gas can be intermittently conveyed in the conveying pipeline, when oil is introduced, a blocking floating ball can rise to block the third pipeline 230, and the oil is ensured to be output through the second pipeline 220 at the bottom; when gas is introduced, the blocking floating ball can descend, and the gas is output through the third pipeline 230 at the top, so that the oil gas recovery and separation effects are achieved.

In this embodiment, the openings of the third pipeline 230 and the second pipeline 220 are both provided with a blocking flap 201, and the blocking flap cooperates with the blocking float 110 to block the third pipeline 230 or the second pipeline 220.

The check valve in this embodiment includes a spring 310, a retainer ring 330, and a plug 320, wherein the spring 310 always pushes the plug 320 toward the retainer ring 330, and the retainer ring 330 is disposed in the liquid supply direction. Only the forward flow of oil or gas can be allowed, and the medium flowing in the reverse direction is blocked.

In this embodiment or other embodiments, the diameter of the valve chamber 100 is not less than twice the diameter of the blocking ball 110, and the third pipe 230 is disposed directly above the second pipe 220. The valve cavity 100 is ensured to have enough space to store a certain amount of oil, the blocking floating ball 110 floats upwards to block the third pipeline 230, and the oil is prevented from directly rushing into the valve cavity 100 and being discharged upwards.

In this embodiment or other embodiments, a guide cage 120 is disposed in the valve chamber 100, and openings at upper and lower ends of the guide cage 120 are respectively connected to the third pipeline 230 and the second pipeline 220. The blocking float 110 is disposed in the guiding cage 120, and can guide the rising or falling of the blocking float 110, so as to ensure that the blocking float can accurately block the third pipeline 230 or the second pipeline 220.

In this embodiment or other embodiments, the guiding cage 120 includes a plurality of light rods 121 arranged in parallel, and the diameter of a cylinder enclosed by the light rods 121 matches the diameter of the blocking ball 110. The polished rod 121 can reduce the friction force between the polished rod and the blocking floating ball 110, so that the blocking floating ball 110 can smoothly ascend or descend; the polished rod 121 is spaced apart from each other to ensure that oil and gas can smoothly enter the polished rod to drive the blocking floating ball 110 to ascend and can be smoothly discharged through the second pipeline 220 or the third pipeline 230.

This device simple structure, can lug connection to oil gas transfer pipeline on, back in fluid gets into the valve pocket through first pipeline, the shutoff floater can come up and shutoff third pipeline, and fluid only discharges through the second pipeline of bottom.

When gas enters, the liquid level in the valve cavity is reduced, and the plugging floating ball is reduced to expose the third pipeline, so that the gas is discharged, the oil-gas separation is greatly facilitated, the volume is reduced, and the problem of discharging the gas through the third pipeline when the pressure of the oil gas is too large is solved.

The one-way valves on the pipelines can organize the backflow of oil or gas, and the separation reliability is guaranteed.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. The oil gas recovery plugging floating ball check valve is characterized in that the first pipeline is communicated to the side face of the valve cavity, the second pipeline is communicated to the bottom of the valve cavity, the third pipeline is communicated to the top of the valve cavity, a plugging floating ball is arranged in the valve cavity and used for plugging the second pipeline or the third pipeline, and check valves are arranged in the first pipeline, the third pipeline and the second pipeline.

2. The oil and gas recovery plugging floating ball one-way valve according to claim 1, wherein the one-way valve comprises a spring, a check ring and a plug, the spring always pushes the plug to face the check ring, and the check ring is arranged in the liquid supply direction.

3. The oil and gas recovery plugging floating ball check valve according to claim 1, wherein the diameter of the valve cavity is not less than twice the diameter of the plugging floating ball, and the third pipeline is arranged right above the second pipeline.

4. The oil and gas recovery plugging floating ball check valve according to claim 3, wherein a guide cage is arranged in the valve cavity, and openings at the upper end and the lower end of the guide cage are respectively connected with the third pipeline and the second pipeline.

5. The oil and gas recovery plugging floating ball one-way valve according to claim 4, wherein the guide cage comprises a plurality of light rods which are arranged in parallel, and the diameter of a cylinder surrounded by the light rods is matched with the diameter of the plugging floating ball.