CN216518579U - Single-flow sand-proof check valve for electric submersible pump - Google Patents
Single-flow sand-proof check valve for electric submersible pump Download PDFInfo
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- CN216518579U CN216518579U CN202123113251.5U CN202123113251U CN216518579U CN 216518579 U CN216518579 U CN 216518579U CN 202123113251 U CN202123113251 U CN 202123113251U CN 216518579 U CN216518579 U CN 216518579U
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Abstract
The utility model provides a single-flow sand prevention check valve for an electric submersible pump, which comprises an upper transportation cap, an upper connector, a shell, a one-way valve element, a lower connector and an external thread transportation cap, wherein the upper transportation cap is connected with the upper connector through threads; the valve core of the one-way valve comprises a valve body, a valve clack and a valve core sealing body, the valve body is fixedly connected with the valve clack, the valve clack is fixedly connected with the valve core sealing body, and rectangular thread grooves are uniformly formed in the outer side wall of the valve body; and a plurality of inclined sand discharge holes are formed in the shell along the circumferential direction. The uniflow sand prevention check valve for the electric submersible pump prevents impurities and sand from blocking the valve, and prolongs the service life of the check valve.
Description
Technical Field
The utility model belongs to the field of submersible pumps, and particularly relates to a single-flow sand-prevention check valve for an electric submersible pump.
Background
The sand in the mixed liquid in the pit can deposit in the valve body when the charge pump shut down, causes the single current check valve to open when the charge pump restarts, causes the unable restart of charge pump.
Disclosure of Invention
In view of the above, the present invention is directed to a single-flow sand prevention check valve for an electric submersible pump, so as to solve the problem that sand in a mixed liquid is deposited in a valve body when the electric submersible pump is stopped.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a single-flow sand prevention check valve for an electric submersible pump comprises an upper transportation cap, an upper connector, a shell, a one-way valve element, a lower connector and an external thread transportation cap, wherein the upper transportation cap is connected with the upper connector through threads;
the valve core of the one-way valve comprises a valve body, a valve clack and a valve core sealing body, the valve body is fixedly connected with the valve clack, the valve clack is fixedly connected with the valve core sealing body, and rectangular thread grooves are uniformly formed in the outer side wall of the valve body; the side wall of the valve body can store oil through the rectangular thread groove, so that the valve body can play a role in lubricating when sliding, and the valve body is prevented from being blocked by sand and incapable of sliding.
And a plurality of inclined sand discharge holes are formed in one end of the shell, which is far away from the lower connector, along the circumferential direction. When the electric pump of the submersible pump normally works, water flow pushes the valve core of the one-way valve to move towards the upper connector, the valve body plugs the sand discharge hole, water flow passes through the valve clack and the valve body, when the motor of the submersible pump is stopped, the valve core sealing body of the valve core of the one-way valve plugs the valve seat of the lower connector, impurities and sand in mixed liquid can flow out from the sand discharge hole, the valve is prevented from being blocked by the impurities and the sand, and the service life of the check valve is prolonged.
Furthermore, a lining cylinder is arranged between the shell and the valve body, and inclined holes are formed in the positions, corresponding to the sand discharge holes of the shell, of the lining cylinder along the circumference. The shell is provided with a locking screw for fixing the shell and the valve body, and the shell and the valve body can be fixed more tightly through the locking screw.
Further, the tip of going up the connector is equipped with the seal groove, and the tip of lower connector is equipped with the seal groove, is equipped with the screw thread on the seal groove.
Furthermore, an O-shaped rubber sealing groove is formed in the sealing groove, a first O-shaped rubber sealing ring is mounted on the O-shaped rubber sealing ring mounting sealing groove, and the first O-shaped rubber sealing ring and the shell form a sealing pair.
Further, the shell is fixedly connected with the upper connector and the lower connector through threads and a sealing ring.
Furthermore, one side of the valve body, which is far away from the valve core sealing body, is provided with a sealing gasket mounting groove, a sealing gasket is arranged on the sealing gasket mounting groove, an O-shaped ring mounting groove is formed in the valve body, a second O-shaped rubber sealing ring is mounted on the O-shaped ring mounting groove, and the second O-shaped rubber sealing ring and the valve body form a sealing pair.
Furthermore, a valve seat is arranged at the joint of the lower connector and the valve body, the valve seat can guide the valve clack to move in a directional mode, the valve seat can bear the pressure of fluid entering the lower connector, and when an electric pump of the submersible pump is stopped, the valve seat and the valve core sealing body form sealing.
Compared with the prior art, the single-flow sand-prevention check valve for the electric submersible pump has the following beneficial effects that:
1. when the electric pump of the submersible pump normally works, water flow pushes the valve core of the one-way valve to move towards the upper connector, the valve body plugs the sand discharge hole, water flow passes through the valve clack and the valve body, when the motor of the submersible pump is stopped, the valve core sealing body of the valve core of the one-way valve plugs the valve seat of the lower connector, impurities and sand in mixed liquid can flow out from the sand discharge hole, the valve is prevented from being blocked by the impurities and the sand, and the service life of the check valve is prolonged.
2. The side wall of the valve body can store oil through the rectangular thread groove, so that the valve body can play a role in lubricating when sliding, and the valve body is prevented from being blocked by sand and incapable of sliding.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic view of a single flow sand control check valve for an electrical submersible pump according to an embodiment of the present invention;
description of reference numerals:
1. an externally threaded shipping cap; 2. an upper connector; 3. a first O-shaped rubber sealing ring; 4. a housing; 5. a gasket; 6. a hexagon socket set screw; 7. a valve body; 8. a liner; 9. a second O-shaped rubber sealing ring; 10. a lower connector; 11. an externally threaded shipping cap; 12. a valve flap; 13. a valve core sealing body; 14. a valve seat; 15. a rectangular thread groove; 16. and (4) sand discharge holes.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
A single-flow sand-prevention check valve for an electric submersible pump comprises an upper transportation cap, an upper connector 2, a shell 4, a one-way valve core, a lower connector 10 and an external thread transportation cap 1, wherein the upper transportation cap is connected with the upper connector 2 through threads, one end of the shell 4 is fixedly connected with the upper connector 2, the other end of the shell 4 is fixedly connected with the lower connector 10, the lower connector 10 is connected with the external thread transportation cap 1 through threads, and the one-way valve core is arranged in the shell 4 in a sliding manner;
the check valve core comprises a valve body 7, a valve clack 12 and a valve core sealing body 13, wherein the valve body 7 is fixedly connected with the valve clack 12, the valve clack 12 is fixedly connected with the valve core sealing body 13, and rectangular thread grooves 15 are uniformly formed in the outer side wall of the valve body 7; the side wall of the valve body 7 can store oil through the rectangular thread groove 15, and the valve body 7 can play a role in lubrication when sliding, so that the valve body 7 is prevented from being blocked by sand and incapable of sliding. A lining cylinder 8 is arranged between the shell 4 and the valve body 7, and inclined holes are formed in the positions, corresponding to the sand discharge holes 16 of the shell, of the lining cylinder 8 along the circumference. The housing 4 is provided with a locking screw for fixing the housing 4 and the valve body 7, and the housing 4 and the valve body 7 can be fixed more tightly through the locking screw. The joint of the lower connector 10 and the valve body 7 is provided with a valve seat 14, the valve seat 14 can guide the valve clack 12 to move directionally, the valve seat 14 can bear the pressure of fluid entering from the lower connector 10, and when the electric pump of the submersible pump is stopped, the valve seat 14 and the valve core sealing body 13 form a seal.
The tip of going up connector 2 is equipped with the seal groove, and the tip of lower connector 10 is equipped with the seal groove, is equipped with the screw thread on the seal groove. An O-shaped rubber sealing groove is formed in the sealing groove, a first O-shaped rubber sealing ring 3 is mounted on the O-shaped rubber sealing ring mounting sealing groove, and the first O-shaped rubber sealing ring 3 and the shell 4 form a sealing pair. The shell 4 is fixedly connected with the upper connector 2 and the lower connector 10 through threads and sealing rings.
And a plurality of inclined sand discharge holes 16 are formed in one end of the shell 4, which is far away from the lower connector 10, along the circumferential direction. When the electric pump of the submersible pump normally works, water flow pushes the check valve core to move towards the upper connector 2, the valve body 7 plugs the sand discharge hole 16, water flow passes through the valve clack 12 and the valve body 7, when the motor of the submersible pump is stopped, the valve core sealing body 13 of the check valve core plugs the valve seat 14 of the lower connector 10, impurities and sand in mixed liquid can flow out of the sand discharge hole 16, the valve is prevented from being plugged by the impurities and the sand, and the service life of the check valve is prolonged.
When the electric pump of the submersible pump normally works, water flow pushes the check valve core to move towards the upper connector 2, the valve body 7 plugs the sand discharge hole 16, water flow passes through the valve clack 12 and the valve body 7, when the motor of the submersible pump is stopped, the valve core sealing body 13 of the check valve core plugs the valve seat 14 of the lower connector 10, impurities and sand in mixed liquid can flow out of the sand discharge hole 16, the valve is prevented from being plugged by the impurities and the sand, and the service life of the check valve is prolonged.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides an oil submerged motor pump is with single current sand control check valve which characterized in that: the conveying device comprises an upper conveying cap, an upper connector (2), a shell (4), a one-way valve element, a lower connector (10) and an external thread conveying cap (11), wherein the upper conveying cap is connected with the upper connector (2) through threads, one end of the shell (4) is fixedly connected with the upper connector (2), the other end of the shell (4) is fixedly connected with the lower connector (10), the lower connector (10) is connected with the external thread conveying cap (11) through threads, and the one-way valve element is arranged in the shell (4) in a sliding mode;
the check valve core comprises a valve body (7), a valve clack (12) and a valve core sealing body (13), the valve body (7) is fixedly connected with the valve clack (12), the valve clack (12) is fixedly connected with the valve core sealing body (13), and rectangular thread grooves (15) are uniformly formed in the outer side wall of the valve body (7);
and a plurality of inclined sand discharge holes (16) are formed in the shell (4) along the circumferential direction.
2. The single flow sand control check valve for the electric submersible pump according to claim 1, characterized in that: a lining cylinder (8) is arranged between the shell (4) and the valve body (7), and inclined holes are formed in the positions, corresponding to the sand discharge holes (16) of the shell, of the lining cylinder (8) along the circumference.
3. The single flow sand control check valve for the electric submersible pump according to claim 1, characterized in that: the end of the upper connector (2) is provided with a sealing groove, the end of the lower connector (10) is provided with a sealing groove, and the sealing groove is provided with threads.
4. The single flow sand control check valve for the electric submersible pump according to claim 3, characterized in that: the sealing groove is provided with an O-shaped rubber sealing groove, a first O-shaped rubber sealing ring (3) is mounted on the O-shaped rubber sealing ring mounting sealing groove, and the first O-shaped rubber sealing ring (3) and the shell (4) form a sealing pair.
5. The single flow sand control check valve for the electric submersible pump according to claim 4, wherein: the shell (4) is fixedly connected with the upper connector (2) and the lower connector (10) through threads and sealing rings.
6. The single flow sand control check valve for the electrical submersible pump as claimed in claim 1, wherein: one side of valve body (7) case seal body (13) is equipped with sealed mounting groove, is equipped with sealed pad (5) on the sealed mounting groove of packing, is equipped with O shape rubber seal groove on valve body (7), installs second O type rubber seal (9) on the O shape rubber seal groove, and second O type rubber seal (9) and valve body (7) form sealed vice.
7. The single flow sand control check valve for the electric submersible pump according to claim 1, characterized in that: and a valve seat (14) is arranged at the joint of the lower connector (10) and the valve body (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123113251.5U CN216518579U (en) | 2021-12-10 | 2021-12-10 | Single-flow sand-proof check valve for electric submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123113251.5U CN216518579U (en) | 2021-12-10 | 2021-12-10 | Single-flow sand-proof check valve for electric submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216518579U true CN216518579U (en) | 2022-05-13 |
Family
ID=81468322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123113251.5U Active CN216518579U (en) | 2021-12-10 | 2021-12-10 | Single-flow sand-proof check valve for electric submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216518579U (en) |
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2021
- 2021-12-10 CN CN202123113251.5U patent/CN216518579U/en active Active
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