CN201372769Y - Back pressure valve with pressure sensor - Google Patents
Back pressure valve with pressure sensor Download PDFInfo
- Publication number
- CN201372769Y CN201372769Y CN200920126313U CN200920126313U CN201372769Y CN 201372769 Y CN201372769 Y CN 201372769Y CN 200920126313 U CN200920126313 U CN 200920126313U CN 200920126313 U CN200920126313 U CN 200920126313U CN 201372769 Y CN201372769 Y CN 201372769Y
- Authority
- CN
- China
- Prior art keywords
- pressure sensor
- pressure
- socket
- valve
- counterbalance valve
- 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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Abstract
A back pressure valve with a pressure sensor comprises a valve body (1), an O-shaped sealing ring (2) and a valve element connected with the valve body through screw threads, wherein the valve element is a pressure sensor (3). A pressure displaying meter is electrically connected with the pressure sensor via a data line (4), and the lower end surface of the pressure sensor (3) faces towards a pressure sealing passage (9). The back pressure valve with a pressure sensor has simple structure, convenient use, reliable performance, accurate reading and capability of realizing the purpose of monitoring pressure inside an oil pipe in real time merely through simple installation on the spot, and improving safety performance of field operation.
Description
Technical field
The utility model relates to a kind of valve, the counterbalance valve that adopts in particularly a kind of drilling process.
Background technology
When changing wellhead blowout preventor or mounting or dismounting production tree, take kill job usually, by counterbalance valve is installed, reach control to bottom pressure in boll-weevil hanger.General main valve body, spool, the O type rubber seal of comprising of existing counterbalance valve; The valve body cylindrical is provided with the endoporus sealing of twice O-ring seals and boll-weevil hanger; In use, with special tool counterbalance valve is installed in the boll-weevil hanger and by screw thread and is connected, its objective is the pressure that is used for letting out except that more than the boll-weevil hanger with boll-weevil hanger.After being installed in counterbalance valve in the boll-weevil hanger, the plug of counterbalance valve inside moves up and down under pressure with the endoporus of counterbalance valve and seals mutually, in the well of the wiper seal in the well below boll-weevil hanger, can finish the dismounting to preventer and production tree.But destroyed strata pressure after the kill-job, bottom pressure comes and go, and people can't know the situation of change of borehole pressure in advance, therefore causes gas blowout accident easily, and well is scrapped, and contaminated environment has increased operating cost simultaneously.
Summary of the invention
The purpose of this utility model just provides a kind ofly can not only carry out effective shutoff to the oil pipe passage, can also realize monitoring in real time the counterbalance valve of the band pressure sensor of the pressure state in the oil pipe simultaneously.
The purpose of this utility model is to realize by such technical scheme, comprises valve body, O RunddichtringO, the spool that is threaded with valve body, and its key is that spool is a pressure sensor; The pressure display instrument table is electrically connected with pressure sensor by data wire, and the lower surface of pressure sensor faces the wiper seal passage.
Twice O RunddichtringO on the back pressure valve body is installed in the sealed groove on the counterbalance valve body, forms sealing between boll-weevil hanger and counterbalance valve; Pressure sensor is installed in the installing hole of counterbalance valve top, its underpart end face and counterbalance valve form the sealing load passage, the oil pipe internal pressure is guided on the sensing element of pressure sensor, sensing element is sent to pressure signal on the pressure display instrument table by the data wire that connects, and the force value in the oil pipe can realize showing on Displaying Meter.
Owing to adopted technique scheme, the utlity model has following advantage: can accurately know borehole pressure after the kill-job, improve the security performance of field operation.
Description of drawings
Description of drawings of the present utility model is as follows:
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1. valve body; 2.O RunddichtringO; 3. pressure sensor; 4. data wire; 5. pressure display instrument table; 6. sealing ring; 7. cell pressure sensing element; 8. the tight locknut of sensor; 9. sealing load passage; 10. socket; 11. plug; 12. seal cover; 13. stand; 14. control circuit; 15. pressure sensing road; 16. pressure channel.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model includes: valve body 1, O RunddichtringO 2, with the spool that valve body 1 is threaded, described spool is a pressure sensor 3; Pressure display instrument table 5 is electrically connected with pressure sensor by data wire 4, and the lower surface of pressure sensor 3 faces sealing load passage 9.Twice O RunddichtringO 2 on the back pressure valve body 1 is installed in the sealed groove on the counterbalance valve body, forms sealing between boll-weevil hanger and counterbalance valve; Pressure sensor 3 is installed in the installing hole of counterbalance valve top, its underpart end face and counterbalance valve form sealing load passage 9, sealing pressure channel 9 is guided to the oil pipe internal pressure on the sensing element 7 of pressure sensor, cell pressure sensing element 7 is sent to pressure signal on the pressure display instrument table 5 by the data wire 4 that connects, and the force value in the oil pipe can realize showing on Displaying Meter.
As shown in Figure 1, pressure sensor 3 of the present utility model comprises plug 10, socket 11, control circuit 14 and pressure responsive element 7; Wherein plug 10, socket 11, control circuit 14 and pressure responsive element 7 orders are connected in series; Socket 11 is located at the upper end of pressure sensor, and the plug 10 1 ends data wire 4 interior with stretching into pressure sensor is electrically connected, and the other end is electrically connected with socket 11; Control circuit 14 1 ends are electrically connected with socket 11, and the other end is electrically connected with pressure responsive element 7 on being installed in stand 13; The lower end of pressure sensor 3 is by seal cover 12 sealings; Stand 13 is provided with a pressure sensing road 15, and this pressure sensing road 15 communicates with sealing load passage 9 by the pressure channel on the seal cover 12 16.After the kill-job, the pressure in the oil pipe passes on the pressure sensing road 15 by wiper seal passage 9 and pressure channel 16, and sensing element 7 is sensed and pressure signal is transported to data wire 4 by control circuit 14 behind the pressure and shows by pressure display instrument table 5.
The top of pressure sensor 3 of the present utility model is equipped with tight locknut 8, presses closer nut with pressure sensor 3 and counterbalance valve body secure fixation.
The lower surface of pressure sensor 3 of the present utility model is equipped with sealing ring 6 in order to increase the sealing of pressure sensor and counterbalance valve valve body.
The utility model is simple in structure, and is easy to use, dependable performance, and reading is accurate, only needs simple the installation at the scene, can realize monitoring in real time the purpose of oil pipe internal pressure, has improved the security performance of field operation.
Claims (6)
1. counterbalance valve with pressure sensor, comprise valve body (1), O RunddichtringO (2), with the spool that valve body (1) is threaded, it is characterized in that: described spool is pressure sensor (3); Pressure display instrument table (5) is electrically connected with pressure sensor by data wire (4), and the lower surface of pressure sensor (3) faces sealing load passage (9).
2. the counterbalance valve of band pressure sensor as claimed in claim 1 is characterized in that: described pressure sensor (3) comprises plug (10), socket (11), control circuit (14) and pressure responsive element (7); Plug (10), socket (11), control circuit (14) and pressure responsive element (7) order serial connection; Socket (11) is located at the upper end of pressure sensor, and becomes to be threaded with pressure sensor body; Plug (10) the one ends data wire (4) interior with stretching into pressure sensor is electrically connected, and the other end is electrically connected with socket (11); Control circuit (14) one ends are electrically connected with socket (11), and the other end is electrically connected with pressure responsive element (7) on being installed in stand (13); The lower end of pressure sensor (3) is by seal cover (12) sealing; Stand (13) is provided with a pressure sensing road (15), and this pressure sensing road (15) communicates with sealing load passage (9) by the pressure channel (16) on the seal cover (12).
3. the counterbalance valve of band pressure sensor as claimed in claim 2 is characterized in that: described plug (10) is an aviation plug, and described socket (11) is the aviation socket.
4. the counterbalance valve of band pressure sensor as claimed in claim 2 is characterized in that: socket (11) is threaded on pressure sensor (3) body.
5. the counterbalance valve of band pressure sensor as claimed in claim 1 is characterized in that: the top of described pressure sensor (3) is equipped with tight locknut (8).
6. the counterbalance valve of band pressure sensor as claimed in claim 1 is characterized in that: the lower surface of described pressure sensor (3) is equipped with sealing ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920126313U CN201372769Y (en) | 2009-02-12 | 2009-02-12 | Back pressure valve with pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920126313U CN201372769Y (en) | 2009-02-12 | 2009-02-12 | Back pressure valve with pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201372769Y true CN201372769Y (en) | 2009-12-30 |
Family
ID=41498850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920126313U Expired - Fee Related CN201372769Y (en) | 2009-02-12 | 2009-02-12 | Back pressure valve with pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201372769Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758620A (en) * | 2012-07-20 | 2012-10-31 | 青岛恒基泰机电科技有限公司 | Well control and wellhead equipment pressure testing device |
| CN103608744A (en) * | 2011-04-20 | 2014-02-26 | 泰思康公司 | In-line back pressure fluid regulator |
-
2009
- 2009-02-12 CN CN200920126313U patent/CN201372769Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103608744A (en) * | 2011-04-20 | 2014-02-26 | 泰思康公司 | In-line back pressure fluid regulator |
| CN103608744B (en) * | 2011-04-20 | 2017-06-30 | 泰思康公司 | In-line back pressure fluid regulator |
| CN102758620A (en) * | 2012-07-20 | 2012-10-31 | 青岛恒基泰机电科技有限公司 | Well control and wellhead equipment pressure testing device |
| CN102758620B (en) * | 2012-07-20 | 2015-04-29 | 青岛恒基泰机电科技有限公司 | Well control and wellhead equipment pressure testing device |
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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: 20091230 Termination date: 20180212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |