CN208331348U - Deflation check device - Google Patents
Deflation check device Download PDFInfo
- Publication number
- CN208331348U CN208331348U CN201820768861.8U CN201820768861U CN208331348U CN 208331348 U CN208331348 U CN 208331348U CN 201820768861 U CN201820768861 U CN 201820768861U CN 208331348 U CN208331348 U CN 208331348U
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- CN
- China
- Prior art keywords
- compression spring
- ball sealer
- exhaust pipe
- loudspeaker section
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of deflation check devices, belong to oil gas production equipment field.The deflation check device includes compression spring, ball sealer, the downtake pipe and second exhaust pipe being coaxially detachably connected, downtake pipe is with one section along the diminishing loudspeaker section of axial internal diameter, and the big end of loudspeaker section is towards second exhaust pipe, one end of compression spring is fixedly connected in second exhaust pipe, the other end of compression spring is connect with ball sealer, ball sealer is between compression spring and loudspeaker section, the diameter of ball sealer is less than the outside diameter of loudspeaker section and is greater than the end diameter of loudspeaker section, ball sealer can shut loudspeaker section under the action of compression spring, when casing pressure be greater than compression spring elastic force and oil return pipeline in pressure and when, ball sealer is open, to carry out the discharge of set gas, when casing pressure, which is reduced to, to be not enough to push ball sealer open, ball sealer again shuts loudspeaker section, make the oil in gathering line that can not flow back Into high pressure leather hose, high pressure leather hose is avoided to block.
Description
Technical field
The utility model relates to oil gas production equipment field, in particular to a kind of deflation check device.
Background technique
At work, oil pipe and casing are located in oil well oil well, and casing is socketed in outside oil pipe.In recovery process,
Oil well bottom meeting bubbing, some gas from crude oil can enter in the annular space between oil pipe and casing, should
Portion gas, which is referred to as, covers gas, and the pressure that set gas is formed in casing is known as casing pressure.
In recovery process, production will affect since casing pressure is excessive, it is therefore desirable to release set gas in due course to reduce casing pressure.Mesh
The discharge of protheca gas is usually that the head end of a high pressure leather hose is connected at the casing pressure lock on christmas tree, then by the tail of high pressure leather hose
End is connected to gathering line and bleeds off pressure gate discharge set gas.But with the discharge of set gas, casing pressure can be gradually decreased, when casing pressure is lower than
When pressure in gathering line, the oil in gathering line can flow back into high pressure leather hose and block high pressure leather hose, so as to cause set
Gas can not continue to discharge, and influence to produce.
Utility model content
In order to solve the problems, such as that gathering line can be blocked, the utility model embodiment provides a kind of deflation non-return dress
It sets.The technical solution is as follows:
The utility model embodiment provides a kind of deflation check device, the deflation check device include compression spring,
Ball sealer, the downtake pipe being coaxially detachably connected and second exhaust pipe, the downtake pipe are inside along axis with one section
The diminishing loudspeaker section of diameter, and the big end of the loudspeaker section, towards the second exhaust pipe, one end of the compression spring is solid
Surely it is connected in the second exhaust pipe, the other end of the compression spring is connect with the ball sealer, and the ball sealer is located at
Between the compression spring and the loudspeaker section, the diameter of the ball sealer is less than the outside diameter of the loudspeaker section and is greater than institute
State the end diameter of loudspeaker section.
Optionally, the downtake pipe far from the second exhaust pipe one end and the second exhaust pipe it is separate
One end of the downtake pipe is respectively arranged with screw thread.
Optionally, the internal diameter of one end far from the downtake pipe of the second exhaust pipe is less than the second exhaust
The internal diameter of the one end of pipe being connect with the downtake pipe, the compression spring second exhaust pipe is set with it is described
In the connected one end of downtake pipe.
Optionally, the outer diameter of the compression spring is identical as the outside diameter of the loudspeaker section.
Optionally, the one end of the compression spring connecting with the ball sealer is provided with the radial direction along the compression spring
It is inwardly extending radial support rod, axial support rod is provided in the radial strut, the axial direction support rod is along the pressure
The axis of power spring extends to the external of the compression spring, and the ball sealer is co-axially located on the axial support rod.
Optionally, the ball sealer is detachably connected with the axial support rod.
Optionally, the ball sealer (40) is threadedly coupled with the axial support rod (302).
Optionally, the ball sealer is plugged on the axial support rod.
Optionally, the inner wall of the downtake pipe, the inner wall of the second exhaust pipe, the compression spring surface and
At least one of the surface of the ball sealer is provided with coating for protection against corrosion.
Optionally, gasket ring is folded between the downtake pipe and the second exhaust pipe.
Technical solution bring beneficial effect provided by the embodiment of the utility model includes at least: by connecting first exhaust
Pipe and second exhaust pipe when in use connect the tail end of one end of the separate second exhaust pipe of downtake pipe and high pressure leather hose
It connects, due to being provided with compression spring in second exhaust pipe, there is a loudspeaker section in downtake pipe, in compression spring and loudspeaker section
Between be provided with ball sealer, the diameter of ball sealer is less than the outside diameter of loudspeaker section and is greater than the end diameter of loudspeaker section, sealing
Ball can shut loudspeaker section under the action of compression spring, the pressure in the elastic force and oil return pipeline that casing pressure is greater than compression spring
Power and when, ball sealer is open, thus carry out set gas discharge, when casing pressure, which is reduced to, to be not enough to push ball sealer open, ball sealer
Again loudspeaker section is shut, to make the oil in gathering line that can not flow back into high pressure leather hose, avoids the blocking of high pressure leather hose.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of deflation check device provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of another downtake pipe provided by the embodiment of the utility model；
Fig. 3 is a kind of structural schematic diagram of compression spring provided by the embodiment of the utility model.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Fig. 1 is a kind of structural schematic diagram of deflation check device provided by the embodiment of the utility model.As shown in Figure 1, should
Deflation check device includes compression spring 30, ball sealer 40, the downtake pipe 10 and second exhaust pipe being coaxially detachably connected
20。
Downtake pipe 10 have one section along the diminishing loudspeaker section 101 of axial internal diameter, and the big end of loudspeaker section 101
(i.e. one end of loudspeaker section 101 being relatively large in diameter) is towards second exhaust pipe 20.
One end of compression spring 30 is fixedly connected in second exhaust pipe 20, the other end and ball sealer 40 of compression spring 30
Connection.For ball sealer 40 between compression spring 30 and loudspeaker section 101, the diameter of ball sealer 40 is less than the big end of loudspeaker section 101
Diameter and the end diameter for being greater than loudspeaker section 101.
The utility model embodiment is provided by connection downtake pipe and second exhaust pipe, when in use by first exhaust
One end of the separate second exhaust pipe of pipe and the tail end of high pressure leather hose connect, due to being provided with compression spring in second exhaust pipe,
There is a loudspeaker section in downtake pipe, ball sealer is provided between compression spring and loudspeaker section, the diameter of ball sealer is less than
The outside diameter of loudspeaker section and the end diameter for being greater than loudspeaker section, ball sealer can seal loudspeaker section under the action of compression spring
Extremely, when in the elastic force and oil return pipeline that casing pressure is greater than compression spring pressure and when, ball sealer is open, to carry out set gas
Discharge, when casing pressure, which is reduced to, to be not enough to push ball sealer open, ball sealer again shuts loudspeaker section, to make in gathering line
Oil can not flow back into high pressure leather hose, avoid the blocking of high pressure leather hose.
Optionally, downtake pipe 10, second exhaust pipe 20, compression spring 30 and ball sealer 40 all can be stainless steel knots
Component.Since set gas has certain corrosivity, stainless steel structure part is more anticorrosive, can extend making for deflation check device
Use the service life.
When realization, the inner wall of downtake pipe 10, the inner wall of second exhaust pipe 20, the surface of compression spring 30 and ball sealer
Coating for protection against corrosion has can be set at least one of 40 surface.It can be further improved deflation non-return by the way that coating for protection against corrosion is arranged
The resistance to corrosion of device, prolongs its service life.
As shown in Figure 1, the separate second exhaust pipe 20 of downtake pipe 10 one end and second exhaust pipe 20 far from the
One end of one exhaust pipe 10 can be respectively arranged with screw thread, be can be convenient in this way by deflation check device and high pressure leather hose and oil-collecting
Pipeline connection.
It can also be connected through a screw thread between downtake pipe 10 and second exhaust pipe 20.Specifically as shown in Figure 1, second row
One end of tracheae 20 is provided with external screw thread, which is inserted into one end of downtake pipe 10, with setting first
Internal screw thread connection in exhaust pipe 10.
Optionally, gasket ring 50 can be folded between downtake pipe 10 and second exhaust pipe 20.It is close by being arranged
Packing changes 50 to improve the leakproofness between downtake pipe 10 and second exhaust pipe 20, reduces the possibility of set gas leakage.
Fig. 2 is the structural schematic diagram of another downtake pipe provided by the embodiment of the utility model, as shown in Fig. 2, the
The internal diameter of the part for connecting with second exhaust pipe 20 of one exhaust pipe 10 can be greater than the outside diameter of loudspeaker section 101, this
Sample to be formed an annular step 103, downtake pipe 10 and second exhaust pipe 20 in downtake pipe 10 in connection,
The end face of second exhaust pipe 20 can form with the step 103 and seal.
Optionally, gasket ring 60 can be set at step 103, can be further improved leakproofness.
Gasket ring 50 and gasket ring 60 all can be flexible rubber pad rings.
As shown in Figure 1, the internal diameter of one end of the separate downtake pipe 10 of second exhaust pipe 20 is less than second exhaust pipe 20
The one end being connect with downtake pipe 10 internal diameter, compression spring 30 second exhaust pipe 20 is set with downtake pipe 10
In connected one end.Since the internal diameter at 20 both ends of second exhaust pipe is different, so that being formed with a step in second exhaust pipe 20
202, one end of such compression spring 30 can be resisted against on the step 202, facilitate the installation of compression spring 30.
Optionally, the outer diameter of compression spring 30 can be identical as the outside diameter of loudspeaker section 101.In this way in compression spring 30
Telescopic process in, compression spring 30 can contact with the inner wall of downtake pipe 10 and avoid distorting, and prevent ball sealer
40 after unlatching with the interior wall friction of downtake pipe 10.
In addition, the outer diameter of compression spring 30 can be identical as the internal diameter of the biggish one end of the internal diameter of second exhaust pipe 20, this
Sample compression spring 30 can be contacted with the inner wall of second exhaust pipe 20 always during flexible, and compression spring 30 is avoided to occur
It distorts.
Fig. 3 is a kind of structural schematic diagram of compression spring provided by the embodiment of the utility model, as shown in figure 3, pressure bullet
The one end of spring 30 connecting with ball sealer 40 is provided with the radial strut 301 extended radially inwardly along compression spring 30, diameter
Be provided with axial support rod 302 on support rod 301, axial support rod 302 along compression spring 30 axis to compression spring 30
It is external extend, ball sealer 40 is co-axially located on axial support rod 302.In this way when ball sealer 40 is open, radial support
Bar 301 and axial support rod 302 can limit the movement of ball sealer 40, avoid causing due to airflow influence ball sealer 40 frequently with
The inner wall of downtake pipe 10 collides or friction, to reduce the sealability of ball sealer 40.
Optionally, ball sealer 40 can be detachably connected with axial support rod 302.It can be convenient replacement ball sealer 40 in this way
With compression spring 30, extend the service life of deflation check device.It additionally can be by replacing compression spring 30, so that sealing
Ball 40 can be opened at various pressures.
When realization, ball sealer 40 can be plugged on axial support rod 302.Installation is simple, specifically can directly seal
One blind hole radial along ball sealer 40 is set on ball 40, axial support rod 302 is inserted into the blind hole.
Further, ball sealer 40 can be threadedly coupled with axial support rod 302, can be to avoid ball sealer 40 from axial branch
It is detached from strut 302.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of deflation check device, which is characterized in that the deflation check device includes compression spring (30), ball sealer
(40), the downtake pipe (10) and second exhaust pipe (20) being coaxially detachably connected, the downtake pipe (10) have one
Section is along the diminishing loudspeaker section (101) of axial internal diameter, and the big end of the loudspeaker section (101) is towards the second exhaust pipe
(20),
One end of the compression spring (30) is fixedly connected in the second exhaust pipe (20), the compression spring (30) it is another
One end is connect with the ball sealer (40), and the ball sealer (40) is located at the compression spring (30) and the loudspeaker section (101)
Between, the diameter of the ball sealer (40) is less than the outside diameter of the loudspeaker section (101) and is greater than the loudspeaker section (101)
End diameter.
2. deflation check device according to claim 1, which is characterized in that the downtake pipe (10) far from described
One end of second exhaust pipe (20) and one end far from the downtake pipe (10) of the second exhaust pipe (20) are set respectively
It is equipped with screw thread.
3. deflation check device according to claim 1, which is characterized in that the second exhaust pipe (20) far from described
The internal diameter of one end of downtake pipe (10) is less than connecting with the downtake pipe (10) for the second exhaust pipe (20)
Being connected with the downtake pipe (10) in the second exhaust pipe (20) is arranged in the internal diameter of one end, the compression spring (30)
One end in.
4. deflation check device according to claim 1, which is characterized in that the outer diameter of the compression spring (30) with it is described
The outside diameter of loudspeaker section (101) is identical.
5. deflation check device according to claim 4, which is characterized in that the compression spring (30) with the sealing
One end of ball (40) connection is provided with the radial strut (301) extended radially inwardly along the compression spring (30), described
It is provided in radial strut (301) axial support rod (302), the axial direction support rod (302) is along the compression spring (30)
Axis extend to the external of the compression spring (30), the ball sealer (40) is co-axially located at the axial support rod
(302) on.
6. deflation check device according to claim 5, which is characterized in that the ball sealer (40) and the axial support
Bar (302) is detachably connected.
7. deflation check device according to claim 6, which is characterized in that the ball sealer (40) is plugged in the axial direction
On support rod (302).
8. deflation check device according to claim 7, which is characterized in that the ball sealer (40) and the axial support
Bar (302) is threadedly coupled.
9. described in any item deflation check devices according to claim 1~8, which is characterized in that the downtake pipe (10)
Inner wall, the inner wall of the second exhaust pipe (20), the surface of the compression spring (30) and the ball sealer (40) surface
At least one of be provided with coating for protection against corrosion.
10. described in any item deflation check devices according to claim 1~8, which is characterized in that the downtake pipe (10)
Gasket ring (50) are folded between the second exhaust pipe (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820768861.8U CN208331348U (en) | 2018-05-22 | 2018-05-22 | Deflation check device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820768861.8U CN208331348U (en) | 2018-05-22 | 2018-05-22 | Deflation check device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208331348U true CN208331348U (en) | 2019-01-04 |
Family
ID=64774980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820768861.8U Active CN208331348U (en) | 2018-05-22 | 2018-05-22 | Deflation check device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208331348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973083A (en) * | 2019-04-18 | 2019-07-05 | 东营市宇彤机电设备有限责任公司 | A kind of cable type electro magnetic wave logger transmitting probe |
-
2018
- 2018-05-22 CN CN201820768861.8U patent/CN208331348U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973083A (en) * | 2019-04-18 | 2019-07-05 | 东营市宇彤机电设备有限责任公司 | A kind of cable type electro magnetic wave logger transmitting probe |
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| GR01 | Patent grant |