CN213574579U - Check valve capable of draining oil - Google Patents
Check valve capable of draining oil Download PDFInfo
- Publication number
- CN213574579U CN213574579U CN202022595828.XU CN202022595828U CN213574579U CN 213574579 U CN213574579 U CN 213574579U CN 202022595828 U CN202022595828 U CN 202022595828U CN 213574579 U CN213574579 U CN 213574579U
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- steel ball
- oil
- valve
- single current
- check valve
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Abstract
The utility model provides a but check valve of draining, includes, single current valve case, support base, internal thread, external screw thread, fluid passage, its characterized in that is equipped with the steel ball support in the single current valve casing, is equipped with the spring along the portion in the steel ball support outside, the spring inside the spring of spring and single current valve case link along the top, be equipped with fluid passage on the steel ball support, be equipped with recess and sealed steel ball swing joint in the fluid passage inboard, still be equipped with the ball seat in single current valve case inside, the limit portion and the sealed steel ball top in ball seat middle part hole link, still be equipped with the draining hole on the single current valve case, be equipped with the bleeder valve in the draining hole. The utility model discloses a after reaching the definite value through pressure, open the draining passageway, only with the purpose that a structure just can reach liquid one-way flow and draining because of pressure is big explodes with the rubber gasket.
Description
Technical Field
The utility model relates to a single current valve is used in the oil field, in particular to but single current valve of draining.
Background
For example, the authorization notice number CN102297127A is a special self-leakage check valve for a rodless pump of a high sand-containing oil well. The valve body mainly solves the problem that when an existing valve body stops a rodless pump unit for oil extraction in the well, sand is accumulated at the outlet of a pipe column, and the unit is difficult to start again. The middle upper wall of the valve body is provided with an outer oil leakage hole, and the middle part of the inner wall is provided with a positioning step; a valve core assembly capable of moving up and down is arranged in the valve body, an oil drain hole part is arranged at the upper end of the valve core assembly, an oil inlet hole part is arranged at the lower end of the valve core assembly, and a spring is arranged in an annular cavity of the valve core assembly and the valve body; when the unit is started, the valve core moves upwards, and the oil inlet hole is opened and communicated with the oil pipe column; when the unit is shut down, the valve core assembly moves downwards under the action of the spring to close the oil inlet channel and open the oil drainage hole at the upper part, so that sand accumulated in the oil pipe column automatically drains into the air of the oil sleeve ring. The valve can realize two functions of one-way liquid flow and automatic oil drainage, so that accumulated sand in an oil pipe can be fully discharged when the underground oil extraction rodless pump unit is stopped, and the unit is convenient to restart.
The check valve of the rodless pump is also used for opening and closing the oil drainage channel through the movement of the valve core, although the check valve of the rodless pump has the oil drainage function, the principle and the structural relationship are different. The prior art still lacks through draining the liquid in the oil drainage hole to the well, and can not excrete the effect on ground along with oil pipe together, has also reached the purpose of environmental protection simultaneously.
Disclosure of Invention
To the not enough of above-mentioned technical problem existence, the utility model aims to provide a but single current valve of draining.
The utility model provides a but check valve of draining, includes, single current valve case, support base, internal thread, external screw thread, fluid passage, its characterized in that is equipped with the steel ball support in the single current valve casing, is equipped with the spring along the portion in the steel ball support outside, the spring inside the spring of spring and single current valve case link along the top, be equipped with fluid passage on the steel ball support, be equipped with recess and sealed steel ball swing joint in the fluid passage inboard, still be equipped with the ball seat in single current valve case inside, the limit portion and the sealed steel ball top in ball seat middle part hole link, still be equipped with the draining hole on the single current valve case, be equipped with the bleeder valve in the draining hole.
And a sealing steel ball is arranged between the ball seat and the groove arranged on the steel ball support.
A sealing ring is arranged between the ball seat and the sealing steel ball.
The edge of the middle hole of the ball seat is provided with a groove for placing a sealing ring.
The valve body of the oil drain valve is provided with a rubber gasket, and the rubber gasket is provided with a gland.
The edge of the gland compresses the rubber gasket.
The rubber gasket is burst due to pressure, so that oil drainage is performed.
The utility model discloses a after reaching the definite value through pressure, open the draining passageway, only with the purpose that a structure just can reach liquid one-way flow and draining because of pressure is big explodes with the rubber gasket. The valve can realize two functions of one-way liquid flow and automatic oil drainage, so that liquid in the oil pipe flows out from the oil drainage hole when the pump is detected in the underground oil extraction, and the liquid is discharged into the well through the oil drainage hole without being discharged to the ground along with the oil pipe, thereby achieving the purpose of environmental protection.
Drawings
Fig. 1 is a schematic sectional structure diagram of the present invention.
In the figure: the check valve comprises a check valve shell 1, an oil drain hole 2, a sealing steel ball 3, a spring 4, a steel ball support 5, a support base 6, an internal thread 7, an external thread 8, a ball seat 9 and a fluid channel 10.
Detailed Description
Referring to fig. 1, the check valve capable of draining oil comprises a check valve housing 1, internal threads 7 and external threads 8 and is characterized in that a steel ball support 5 is arranged in the check valve housing 1, a spring 4 is arranged at the edge part of the outer side of the steel ball support 5, the spring 4 is connected with the inner edge of the spring in the check valve housing 1 in a jacking mode, a fluid channel 10 is arranged on the steel ball support 5, a groove movably connected with a sealing steel ball 3 is formed in the inner side of the fluid channel 10, a ball seat 9 is further arranged in the check valve housing 1, the edge part of a middle hole of the ball seat 9 is connected with the sealing steel ball 3 in a jacking mode, an oil drainage hole 2 is further formed in the check valve housing 1, and an oil drainage valve is arranged in the oil drainage hole 2.
The edge of the middle hole of the ball seat 9 is provided with a groove for placing a sealing ring, and the ball seat 9 is connected with the sealing steel ball 3 in a friction manner by the sealing ring.
The valve body of the oil drain valve is provided with a rubber gasket, and the edge of the rubber gasket is provided with a gland.
The rubber gasket is burst-type jacked open due to the fact that the pressure in the check valve shell 1 is too high, and therefore the gland is jacked to fly.
After the rubber gasket bursts, the oil in the check valve housing 1 is caused to flow out.
Liquid flows through the check valve shell 1 along the direction A, passes through the through hole in the middle of the ball seat 9 and enters the sealing steel ball 3, the sealing steel ball 3 extrudes the spring 4 on the edge of the sealing steel ball 3 through the compression steel ball bracket 5 under the action of pressure, so that the ball seat 9 moves towards the end without pressure, and the liquid flows into the fluid channel 10.
When liquid flows along the reverse direction of the direction A, the sealing steel ball 3 is tightly pressed with the sealing groove of the ball seat 9 under the action of the spring 4, and the liquid cannot flow into the space in the reverse direction of the ball seat 9A, so that the effect of unidirectional flow is achieved.
When this patent normal use, put into the rubber gasket in draining hole 2, be equipped with the gland above its rubber gasket and compress tightly to reach sealed effect. When liquid flows along the direction A, after the liquid is pressurized by continuously injecting fluid, the sealing steel ball 3 compresses the spring 4 under the action of pressure to make the fluid at the bottom of the ball seat 9 flow out of a channel, and the liquid enters the upper space of the shell 1 of the check valve through the fluid channel 10; when the liquid is reversely injected in the direction A, along with the continuous increase of the liquid, the pressure in the single-flow valve shell 1 is continuously increased, and when the critical pressure value is reached, the rubber gasket is exploded because the rubber gasket cannot bear higher pressure, so that the oil drainage purpose is achieved.
Claims (7)
1. The utility model provides a but check valve of draining, includes, single current valve case (1), support base (6), internal thread (7), external screw thread (8), fluid passage (10), its characterized in that is equipped with steel ball support (5) in single current valve case (1), is equipped with spring (4) in the edge portion in steel ball support (5) outside, spring (4) link along the top with the inside spring of single current valve case (1) in, be equipped with fluid passage (10) on steel ball support (5), be equipped with recess and sealed steel ball (3) swing joint in fluid passage (10) inboard, still be equipped with ball seat (9) in single current valve case (1) inside, the limit portion and sealed steel ball (3) top of ball seat (9) middle part hole link, still be equipped with drain hole (2) on single current valve case (1), be equipped with the drain valve in drain hole (2).
2. An oil-drainable check valve as claimed in claim 1, wherein a sealing steel ball (3) is provided between said ball seat (9) and the groove provided on the steel ball support (5).
3. An oil-drainable check valve as claimed in claim 1 or 2, wherein a sealing ring is provided between the ball seat (9) and the sealing steel ball (3).
4. An oil-relief check valve as claimed in claim 1 or 2, wherein a groove for placing a sealing ring is provided at the edge of the central hole of the ball seat (9).
5. An oil-relief check valve as claimed in claim 1, wherein a rubber gasket is disposed on the valve body of the oil-relief valve, and a gland is disposed on the rubber gasket.
6. An oil drainable check valve as claimed in claim 5, wherein the edge of the gland compresses the rubber gasket.
7. A drainable check valve as claimed in any one of claims 5 and 6, wherein: the rubber gasket is exploded due to overlarge pressure in the uniflow valve shell (1), so that oil in the uniflow valve shell (1) flows out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022595828.XU CN213574579U (en) | 2020-11-11 | 2020-11-11 | Check valve capable of draining oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022595828.XU CN213574579U (en) | 2020-11-11 | 2020-11-11 | Check valve capable of draining oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213574579U true CN213574579U (en) | 2021-06-29 |
Family
ID=76536542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022595828.XU Active CN213574579U (en) | 2020-11-11 | 2020-11-11 | Check valve capable of draining oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213574579U (en) |
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2020
- 2020-11-11 CN CN202022595828.XU patent/CN213574579U/en active Active
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