CN202560161U - Check valve with pressure release valve - Google Patents
Check valve with pressure release valve Download PDFInfo
- Publication number
- CN202560161U CN202560161U CN2012202518007U CN201220251800U CN202560161U CN 202560161 U CN202560161 U CN 202560161U CN 2012202518007 U CN2012202518007 U CN 2012202518007U CN 201220251800 U CN201220251800 U CN 201220251800U CN 202560161 U CN202560161 U CN 202560161U
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- CN
- China
- Prior art keywords
- valve
- valve body
- spring
- relief
- seat
- 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
Links
- 238000003825 pressing Methods 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims description 26
- 229910052751 metal Inorganic materials 0.000 claims description 26
- 210000002445 nipple Anatomy 0.000 claims 2
- 238000002347 injection Methods 0.000 abstract description 26
- 239000007924 injection Substances 0.000 abstract description 26
- 239000003129 oil well Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model relates to a take single current valve of relief valve, it includes: the valve comprises a valve body, wherein a valve seat and a spring pressing ring are arranged in the valve body, a valve ball can be seated on the valve seat, one end of a spring is abutted against the valve ball, and the other end of the spring is abutted against the spring pressing ring fixedly connected with the valve body; the valve body is close to the one end of disk seat is the pipeline link, is close to the one end of spring clamping ring is the well head link, just is in be equipped with the relief valve between disk seat and the pipeline link, between spring clamping ring and the well head link respectively. Will the utility model discloses a take single current valve of relief valve connects on the pipeline of injecting the air in to the oil well, closes at the gas injection in-process each relief valve is accomplishing the gas injection operation after, will the utility model discloses when demolising from the gas injection pipeline, can let out the residual pressure in the single current valve through opening the relief valve to prior art's defect has been overcome, the operation security has been guaranteed.
Description
Technical Field
The utility model relates to a single current valve for producing oil device, especially a take single current valve of relief valve.
Background
At present, the thickened oil air injection catalytic oxidation oil extraction technology has a good effect in the application of a thickened oil block in an oil field, can basically ensure safe production, but has potential safety hazards in the process of connecting a ground pipeline.
Mainly, when preventing that gas injection well pressure from increaseing suddenly, cause the injury to ground pipeline, equipment and personnel, be provided with the check valve in gas injection pipeline and well head junction, after accomplishing the notes operation, when needing to demolish the gas injection pipeline, close well head valve earlier usually, then open the atmospheric valve of pipeline, then demolish the gas injection pipeline again. When the check valve is disassembled, a certain amount of air with certain pressure is stored in the air storage space between the wellhead valve and the check valve ball. In operation, the check valve is usually removed after the excess pressure is released by poking the valve ball with a long-rod tool such as an iron rod. However, because the air compression is relatively high, the excess pressure can easily cause injury to the operator, and if the excess pressure is vented from the slip joint, the safety issues discussed above can also exist.
In view of the above-mentioned drawbacks of the prior art, the present inventor developed the check valve with relief valve according to the production design experience of many years in this and related fields, so as to ensure the operation safety when dismantling the check valve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a take single current valve of relief valve to when removing the single current valve from the gas injection pipeline, can let out the residual pressure in the single current valve.
Therefore, the utility model provides a take single current valve of relief valve, include: the valve comprises a valve body, wherein a valve seat and a spring pressing ring are arranged in the valve body, a valve ball can be seated on the valve seat, one end of a spring is abutted against the valve ball, and the other end of the spring is abutted against the spring pressing ring fixedly connected with the valve body; the valve body is close to the one end of disk seat is the pipeline link, is close to the one end of spring clamping ring is the well head link, just is in be equipped with the relief valve between disk seat and the pipeline link, between spring clamping ring and the well head link respectively.
The check valve with the pressure release valve, wherein a metal pipe with a blind hole is arranged on the valve body close to the pipeline connecting end, the open end of the metal pipe is connected with the valve body, the closed end of the metal pipe extends into the valve body, the open end of the metal pipe forms a temperature measuring hole on the valve body, and a temperature measuring element accommodating part is formed in the metal pipe.
The check valve with the pressure relief valve is characterized in that the metal pipe with the blind hole is obliquely connected with the valve body.
The check valve with pressure relief valve as described above, wherein the line connection end is threadedly connected to the line slip joint.
The check valve with the pressure release valve is characterized in that the wellhead connecting end is in threaded connection with the wellhead slip connecting head.
The check valve with the pressure release valve comprises a valve body, a first connecting short circuit and a second connecting short circuit, wherein the first connecting short circuit and the second connecting short circuit are respectively in threaded connection with two ends of the valve body; wherein the valve seat, the valve ball and the spring ring are arranged in the valve body.
The check valve with the pressure release valve is characterized in that the first connecting short circuit and the second connecting short circuit are respectively provided with a pressure release valve.
The check valve with the pressure release valve comprises a valve body, a first connecting short circuit and a second connecting short circuit, wherein the first connecting short circuit and the second connecting short circuit are respectively in threaded connection with two ends of the valve body; the valve seat, the valve ball and the spring pressing ring are arranged in the valve body; and the metal pipe with the blind hole is arranged on a second connecting short circuit connected with one end of the valve body provided with the valve seat.
The utility model discloses when connecting the air injection pipeline, the well head slips connector passes through the slips to be connected with the well head, the pipeline slips connector passes through the slips with the pipeline and is connected, and each relief valve that sets up at the valve body both ends closes. After the pipeline is connected, starting up gas injection, and when the pressure reaches the opening pressure of the check valve, ejecting the valve ball by the gas to start injecting air into the oil well; a thermometer is inserted at the temperature hole to measure the wellhead gas injection temperature.
When the gas injection operation is completed and the gas injection pipeline needs to be dismantled, the wellhead gas injection valve is firstly closed, the pressure release valves arranged at the two ends of the valve body are opened to release the residual pressure at the two end sides of the valve ball, and the spring and the valve ball in the check valve are popped up under the action of the residual pressure when the pipeline dismantling operation is avoided.
The utility model discloses a take single current valve of relief valve connects on the pipeline of injecting the air into in to the oil well, closes at the gas injection in-process each relief valve is accomplishing the gas injection operation after, will the utility model discloses when demolising from the gas injection pipeline, can let out the residual pressure in the single current valve through opening the relief valve to prior art's defect has been overcome, the operation security has been guaranteed.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
fig. 1 is the utility model discloses a take single current valve structure sketch map of relief valve.
The reference numbers illustrate:
1. well head slips connector 2, pipeline slips connector 3, relief valve 4, valve body
5. Spring clamping ring 6, spring 7, valve ball 8 and valve seat
9. Metal pipe 10, pressure release valve 11, well head connecting end 12, pipeline connecting end
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is the utility model discloses a take single current valve structure sketch map of relief valve. As shown in fig. 1, the utility model provides a take single current valve of relief valve includes: the valve comprises a valve body 4, wherein a valve seat 8 and a spring pressing ring 5 are arranged in the valve body 4, a valve ball 7 can be seated on the valve seat 8, one end of a spring 6 abuts against the valve ball 7, and the other end of the spring abuts against the spring pressing ring 5 fixedly connected with the valve body. Valve body 4 is close to the one end of disk seat 8 is pipeline connection end 12, is close to the one end of spring clamping ring 5 is well head connection end 11, just is in be equipped with relief valve 10, 3 between disk seat 8 and pipeline connection end 12, between spring clamping ring 5 and the well head connection end 11 respectively.
Further, a metal tube 9 with a blind hole is disposed on the valve body 4 near the pipeline connecting end 12, the open end of the metal tube is connected to the valve body 4, the closed end of the metal tube extends into the valve body, the open end of the metal tube 9 forms a temperature measuring hole 91 on the valve body 4, and a temperature measuring element accommodating part is formed in the metal tube 9.
The metal tube 9 with the blind hole is obliquely connected with the valve body 4, that is, an included angle which is larger than 180 degrees and not equal to 90 degrees is formed between the central line of the metal tube 9 and the axis of the check valve, so that the temperature measuring element arranged in the metal tube 9 can accurately measure the temperature in the check valve.
In one embodiment, a line slip connector 2 is threadably secured to the exterior of the line connection end 12 and a wellhead slip connector 1 is threadably secured to the exterior of the wellhead connection end 11.
In a possible embodiment, the valve body 4 comprises a valve body 40, and a first connecting short joint 41 and a second connecting short joint 42 which are respectively connected with two ends of the valve body 40 in a threaded manner, in the specific embodiment shown in fig. 1, the first connecting short joint 41 is connected with one end of the valve body 40 provided with the spring pressing ring 5, and the second connecting short joint 42 is connected with the other end of the valve body 40 provided with the valve seat 8. Wherein the valve seat 8, the valve ball 7 and the spring press ring 5 are arranged in the valve body 40. In this embodiment, because valve body 4 passes through threaded connection by valve body 40, first connection short circuit 41 and the second connection short circuit 42 triplex and constitutes a whole, consequently the utility model discloses a take single current valve of relief valve is through installing conveniently and dismantling, and can change the part that damages according to the in service behavior, need not to change whole valve when one of them part of valve body goes wrong, as long as change the part that damages, with new part through the screw thread be connected with remaining part can.
When the valve body 4 is composed of the three parts, the pressure release valves 3 and 10 are respectively arranged on the first connecting short circuit 41 and the second connecting short circuit 42, and the metal pipe 9 with the blind hole is arranged on the second connecting short circuit 42.
The working principle of the present invention is described below with reference to a specific embodiment:
the utility model provides a take single current valve of relief valve is shown in figure 1, and its valve body 4 comprises valve body 4O, first connection short circuit 41 and second connection short circuit 42, and wherein, 41 one end of first connection short circuit constitute well head link 11, and the other end is connected with valve body 40, and the one end that short circuit 42 was connected to the second constitutes line connection end 12, and the other end is connected with valve body 40.
An internal thread is turned on the wellhead slip connector 1 and is connected with a first connecting short joint 41 with an external thread at one end through a thread; the other end of the first connecting short circuit 41 is provided with internal threads, the second connecting short circuit 42 is the same as the first connecting short circuit 41, one end of the second connecting short circuit is provided with external threads, and the other end of the second connecting short circuit is provided with internal threads. The pipeline slip connector 2 is in threaded connection with one end of a second connection sub 42. Both ends of the valve body 40 are provided with external threads which are respectively in threaded connection with the first connecting short joint 41 and the second connecting short joint 42. The middle positions of the first connecting short circuit 41 and the second connecting short circuit 42 are respectively connected with pressure relief valves 3 and 10, and the pressure relief valves 3 and 10 are communicated with the inner cavities of the first connecting short circuit 41 and the second connecting short circuit 42. And a pipeline slip connector 2 is fixedly connected to the outside of the pipeline connecting end 12 through threads, and a wellhead slip connector 1 is fixedly connected to the outside of the wellhead connecting end 11 through threads.
The spring pressing ring 5 and the valve seat 8 are fixedly connected with the valve body 40 through threads, one end of the spring 6 abuts against the spring pressing ring 5, the other end of the spring abuts against the valve ball 7, and the valve ball 7 is seated on the valve seat 8 under the action of the spring 6. The metal tube 9 with the blind hole is welded at the position, close to the pipeline connection slip joint 2, of the second connection short joint 42, and is arranged at a certain angle with the second connection short joint, so that the temperature can be measured more accurately, and the open end of the metal tube with the blind hole forms a temperature measuring hole 91 in the second connection short joint 42.
When connecting the air injection pipeline, well head slips connector 1 is connected with the well head through the slips, pipeline slips connector 2 is connected with the pipeline through the slips, and each relief valve 3, 10 arranged at two ends of valve body 4 are closed. After the pipeline is connected, starting gas injection, when the pressure reaches the opening pressure of the check valve, the gas pushes the valve ball 7 open, and the gas injection into the oil well is started, and meanwhile, the temperature measuring element is placed into the metal pipe 9, for example, a thermometer is inserted into the metal pipe 9 from the temperature measuring hole 91, so that the gas injection temperature of the wellhead is measured.
When the gas injection operation is completed and the gas injection pipeline needs to be dismantled, firstly, the gas injection valve at the wellhead is closed, and the pressure release valves 3 and 10 arranged at the two ends of the valve body 4 are opened to release the residual pressure at the two end sides of the valve ball 7, so that the spring and the valve ball in the check valve are prevented from popping up under the action of the residual pressure when the pipeline dismantling operation is carried out.
Specifically, can be after closing well head gas injection valve, open relief valve 10 or the relief valve 3 of valve ball 7 one side, when treating the pressure in this side pipeline of unloading, open the relief valve of valve ball 7 opposite side again, of course, as required, also can open the relief valve 3 of valve ball 7 both sides simultaneously, 10 to the excess pressure in the quick unloading check valve, treat that the excess pressure in the pipeline is discharged completely the back, demolish the check valve again, thereby avoided causing the problem to the operating personnel injury because of the interior surplus pressure of check among the well-known technology, the operation security has been improved.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.
Claims (8)
1. The utility model provides a take check valve of relief valve which characterized in that, the check valve of taking the relief valve includes: the valve comprises a valve body, wherein a valve seat and a spring pressing ring are arranged in the valve body, a valve ball can be seated on the valve seat, one end of a spring is abutted against the valve ball, and the other end of the spring is abutted against the spring pressing ring fixedly connected with the valve body; the valve body is close to the one end of disk seat is the pipeline link, is close to the one end of spring clamping ring is the well head link, just is in be equipped with the relief valve between disk seat and the pipeline link, between spring clamping ring and the well head link respectively.
2. The relief valve check valve as claimed in claim 1 wherein a metal tube with a blind hole is disposed on said valve body near said line connection end, with an open end connected to said valve body and a closed end extending into said valve body, said open end of said metal tube forming a temperature measuring hole in said valve body, said metal tube forming a temperature measuring element receiving portion.
3. The relief valve check valve as claimed in claim 2 wherein said metal tube with blind bore is attached to said valve body at an angle.
4. The relief valve check valve as in claim 1 wherein the line connection end is threadably connected to a line slip joint.
5. The relief valve check valve as in claim 1 wherein the wellhead connection end is threadably connected to a wellhead slip connector.
6. The relief valve check valve as claimed in any one of claims 1 to 5 wherein said valve body comprises a valve body, a first connecting nipple and a second connecting nipple threaded on either end of said valve body; wherein the valve seat, the valve ball and the spring ring are arranged in the valve body.
7. The vented check valve of claim 6, wherein a pressure relief valve is provided on each of the first and second connecting stubs.
8. The relief valve check valve as claimed in claim 2 or 3, wherein said valve body comprises a valve body, a first connecting short joint and a second connecting short joint respectively threaded to two ends of said valve body; the valve seat, the valve ball and the spring pressing ring are arranged in the valve body; and the metal pipe with the blind hole is arranged on a second connecting short circuit connected with one end of the valve body provided with the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202518007U CN202560161U (en) | 2012-05-30 | 2012-05-30 | Check valve with pressure release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202518007U CN202560161U (en) | 2012-05-30 | 2012-05-30 | Check valve with pressure release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560161U true CN202560161U (en) | 2012-11-28 |
Family
ID=47209826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202518007U Expired - Fee Related CN202560161U (en) | 2012-05-30 | 2012-05-30 | Check valve with pressure release valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202560161U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836180A (en) * | 2018-08-15 | 2020-02-25 | 中国石油天然气股份有限公司 | Valve and pump assembly with same |
| CN111827927A (en) * | 2020-07-08 | 2020-10-27 | 成都天晨压缩机制造有限公司 | Liquid impact prevention device of equipment for gathering and transporting liquid-containing oil wellhead gas in desert oil field |
-
2012
- 2012-05-30 CN CN2012202518007U patent/CN202560161U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836180A (en) * | 2018-08-15 | 2020-02-25 | 中国石油天然气股份有限公司 | Valve and pump assembly with same |
| CN111827927A (en) * | 2020-07-08 | 2020-10-27 | 成都天晨压缩机制造有限公司 | Liquid impact prevention device of equipment for gathering and transporting liquid-containing oil wellhead gas in desert oil field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20210530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |