CN2481930Y - Check valve of electric immersible pump - Google Patents
Check valve of electric immersible pump Download PDFInfo
- Publication number
- CN2481930Y CN2481930Y CN 01222532 CN01222532U CN2481930Y CN 2481930 Y CN2481930 Y CN 2481930Y CN 01222532 CN01222532 CN 01222532 CN 01222532 U CN01222532 U CN 01222532U CN 2481930 Y CN2481930 Y CN 2481930Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- submersible pump
- electric submersible
- valve body
- 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.)
- Expired - Fee Related
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- Check Valves (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Taps Or Cocks (AREA)
Abstract
The utility model relates to an electric submersible pump check valve used for the mechanical oil production in an oil field, the electric submersible pump check valve consists of a valve body, a valve ball, a valve seat, a valve seat seal ring, a lower connector seal ring and a lower connector. The utility model is characterized in that the lower connector seal ring is arranged between the lower connector and the valve body, and positioned at the upper end or lower end of the lower thread of the valve body. Because the valve seat and the lower connector seal ring with high hardness are arranged, the sealing surface of the valve ball is not punctured, the connecting thread position between the lower connector and the valve body can also be sealed, thereby both the upper part and the lower part of the valve seat can be sealed, and the produced fluid in the upper oil pipe can be ensured not to flow back into the oil well, without production loss and the reverse rotation of the electric submersible pump.
Description
The utility model relates to the electric submersible pump one-way valve that a kind of oil field machinery oil is used.
In the electric submersible pumping process, when oil well stops adopting for some reason, extraction liquid in the oil pipe of electric submersible pump top can flow backwards in the oil return well, causes production loss on the one hand, causes the electric submersible pump reversing on the other hand, may damage electric submersible pump, therefore one-way valve need be installed on electric submersible pump producing tubular column, the one-way valve that uses does not have the valve seat of high hardness at present, and the sealing surface of valve ball is decreased by thorn easily, very fast ineffective in well, can not satisfy the needs of electric submersible pump producing well.Though the oiling valve on the rod pumping pump is an one-way valve, the valve seat that high hardness is also arranged, but do not require sealing under its valve seat, and the one-way valve in the electric submersible pump producing tubular column requires valve seat all will seal up and down, so the oiling valve on the rod pumping pump can not be used as the electric submersible pump one-way valve.
The purpose of this utility model is a kind of electric submersible pump one-way valve of design, and the valve seat of high hardness is arranged, and the sealing surface of valve ball is not decreased by thorn, and valve seat can both seal up and down, and extraction liquid in the oil pipe of electric submersible pump top is not flow backwards in the oil return well.
The purpose of this utility model is achieved in that it is made up of valve body, valve ball, valve seat, valve seat insert, lower contact seal ring, lower contact.Valve ball is loaded in the cavity of valve body, valve seat is installed in the valve seat orifice of valve body, with valve body the strict requirement that cooperates is arranged, valve seat is a high hardness material, valve seat insert is arranged on the valve seat, lower contact is connected on the screw thread of valve body lower portion, plays fixed valve base and connects the bottom electric submersible pump, and the lower contact seal ring is arranged between lower contact and the valve body.Oil pipe on the pump of valve body top scyewed joint electric submersible pump producing tubular column, the lower contact lower thread connects electric submersible pump.
Electric submersible pump one-way valve of the present utility model, because the valve seat and the lower contact seal ring of high hardness have been installed, therefore, the sealing surface of valve ball can not decreased by thorn, connecting the screw thread place and also can seal between lower contact and the valve body,, can guarantee that extraction liquid in the oil pipe of electric submersible pump top does not flow backwards in the oil return well so valve seat can both seal up and down, can not cause production loss, can not cause the electric submersible pump reversing yet.
Fig. 1 is first kind of embodiment's general structure of the utility model half sectional view.
Fig. 2 is second kind of embodiment's general structure of the utility model half sectional view.
In Fig. 1,2: the 1st, valve body, the 2nd, valve ball, the 3rd, valve seat, the 4th, valve seat insert, the 5th, lower contact seal ring, the 6th, lower contact.Be that electric submersible pump one-way valve of the present utility model is made up of valve body 1, valve ball 2, valve seat 3, valve seat insert 4, lower contact seal ring 5, lower contact 6.
Below in conjunction with Fig. 1 first kind of embodiment of the utility model is described further.Valve ball 2 is loaded in the cavity of valve body 1, valve seat 3 is installed in the valve seat orifice of valve body 1, valve seat 3 has the strict requirement that cooperates with valve body 1, valve seat 3 is a high hardness material, valve seat insert 4 is arranged on the valve seat 3, lower contact 6 is connected on the screw thread of valve body 1 bottom, play fixed valve base 3 and connect the bottom electric submersible pump, between lower contact 6 and the valve body 1 lower contact seal ring 5 is arranged, lower contact seal ring 5 is in the upper end of valve body 1 lower thread, oil pipe on the pump of valve body 1 top scyewed joint electric submersible pump producing tubular column, lower contact 6 lower thread connect electric submersible pump.
In conjunction with Fig. 2 second kind of embodiment of the utility model is described further again below.Valve ball 2 is loaded in the cavity of valve body 1, valve seat 3 is installed in the valve seat orifice of valve body 1, valve seat 3 has the strict requirement that cooperates with valve body 1, valve seat 3 is a high hardness material, valve seat insert 4 is arranged on the valve seat 3, lower contact 6 is connected on the screw thread of valve body 1 bottom, play fixed valve base 3 and connect the bottom electric submersible pump, between lower contact 6 and the valve body 1 lower contact seal ring 5 is arranged, lower contact seal ring 5 is in the lower end of valve body 1 lower thread, oil pipe on the pump of valve body 1 top scyewed joint electric submersible pump producing tubular column, lower contact 6 lower thread connect electric submersible pump.
Claims (2)
1, the electric submersible pump one-way valve used of a kind of oil field machinery oil, form by valve body (1), valve ball (2), valve seat (3), valve seat insert (4), lower contact seal ring (5), lower contact (6), it is characterized in that between lower contact (6) and the valve body (1) lower contact seal ring (5) being arranged.
2, electric submersible pump one-way valve according to claim 1 is characterized in that lower contact seal ring (5) is in the upper end or the lower end of valve body (1) lower thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01222532 CN2481930Y (en) | 2001-05-10 | 2001-05-10 | Check valve of electric immersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01222532 CN2481930Y (en) | 2001-05-10 | 2001-05-10 | Check valve of electric immersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2481930Y true CN2481930Y (en) | 2002-03-13 |
Family
ID=33639368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01222532 Expired - Fee Related CN2481930Y (en) | 2001-05-10 | 2001-05-10 | Check valve of electric immersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2481930Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141647A (en) * | 2013-05-06 | 2014-11-12 | 北京华德液压工业集团有限责任公司 | Cartridge one-way valve |
| CN107420070A (en) * | 2017-07-21 | 2017-12-01 | 中国海洋石油总公司 | A kind of closed flow string of Oil/gas Well list submersible electric pump |
-
2001
- 2001-05-10 CN CN 01222532 patent/CN2481930Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141647A (en) * | 2013-05-06 | 2014-11-12 | 北京华德液压工业集团有限责任公司 | Cartridge one-way valve |
| CN107420070A (en) * | 2017-07-21 | 2017-12-01 | 中国海洋石油总公司 | A kind of closed flow string of Oil/gas Well list submersible electric pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |