CN200964846Y - Electronic pressure gauge structure - Google Patents
Electronic pressure gauge structure Download PDFInfo
- Publication number
- CN200964846Y CN200964846Y CNU2006202008742U CN200620200874U CN200964846Y CN 200964846 Y CN200964846 Y CN 200964846Y CN U2006202008742 U CNU2006202008742 U CN U2006202008742U CN 200620200874 U CN200620200874 U CN 200620200874U CN 200964846 Y CN200964846 Y CN 200964846Y
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- CN
- China
- Prior art keywords
- pressure
- sensor
- pressure sensor
- left end
- communicated
- 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
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses an electronic pressure gauge structure, which comprises a sensor seat (1) and a pressure sensor (2), wherein a pressure sensing hole (3) is arranged on the circumference of a pipe at the left end of the sensor seat (1), and the pressure sensing hole (3) is communicated with a semicircular small hole (4) on the inner cavity wall at the left end of the sensor seat (1); the pressure sensor (2) is arranged in the inner cavity of the sensor seat (1), the left end of the pressure sensor is communicated with the semicircular small hole (4), the right end of the pressure sensor is compressed by the compression screw plug (5), and the signal wire (6) is connected to the right end face of the pressure sensor (2). The utility model overcomes among the prior art pressure sensor mounting structure increases the problem that instrument length and instrument housing stress variation influence pressure testing precision, and can make things convenient for, install or change pressure sensor simply and conveniently, and it is very effective to be used for the pressure test under the special construction of similar work drum in the pit.
Description
Technical field:
The utility model relates to a kind of electronic pressure gauge, especially a kind of electronic pressure gauge structure that is used for oil field eccentric water injection well laminated distributor under well pressure test.
Background technology:
Eccentric water injection well zonal pressure test is one of oil field important process of improving oil production, can in time understand the pressure condition of each layer by test, so that in time adjust the water injection rate to each layer, thereby improves produce oil efficient, fully excavate limited petroleum reserves.Because the particularity of underground work barrel structure, and the influence of extraneous factors such as oil well fouling, wax deposition, the appearance and size that is used for the electronic pressure gauge of pressure test is subjected to strict restriction.Some manufacturer simply is made of one sensor and instrument in order to reduce manometric length and diameter, can't change after sensor damages, and causes whole instrument to be scrapped; And can not select the sensor of different ranges.The pressure gauge of Xiao Shouing is because structure design is unreasonable, and the pressure test precision often is subjected to the influence of tool housing STRESS VARIATION bigger, causes the pressure measurement degree of accuracy low in the market, and test data can't satisfy the needs of well test analysis.
Summary of the invention:
The purpose of this utility model is: provide a kind of under the bulk prerequisite that particularly length dimension is restricted, can install, change pressure sensor quickly and easily, easy to maintenance and pressure measurement is the electronic pressure gauge structure accurately, to overcome the deficiencies in the prior art.
The utility model is to constitute like this: it comprises sensor holder (1) and pressure sensor (2), be provided with pressure sensing hole (3) on the pipe circumference of sensor holder (1) left end, pressure sensing hole (3) is communicated with semicircle aperture (4) on sensor holder (1) the left end internal chamber wall; Pressure sensor (2) is contained in the inner chamber of sensor holder (1), and its left end is communicated with semicircle aperture (4), and right-hand member compresses with compressing plug screw (5), and holding wire (6) is connected on the right side of pressure sensor (2).
Above-mentioned pressure sensing hole (3) is 4, and be mutually 90 the degree be distributed on the pipe circumference of sensor holder (1) left end.
Two O-ring seals (7) are housed on above-mentioned pressure sensor (2).
Compared with prior art, sensor fixing structure of the present utility model can not increase tool length, satisfies instructions for use on appearance and size fully; And because pressure sensor of the present utility model is that the indirect pressure sensing hole that passes through is experienced external pressure, the presser sensor part that can guarantee pressure sensor fully is not subjected to the influence of instrument STRESS VARIATION, measuring accuracy height.While can be changed the sensor of damage again easily or select the sensor of different ranges, and does not need whole instrument to scrap, and is very effective to the pressure test under the special construction that is applied to similar underground work tube.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of sensor holder of the present utility model;
Fig. 3 is the A-A sectional view of Fig. 2.
The specific embodiment:
Embodiment of the present utility model: as shown in Figure 1, it comprises sensor holder 1 and pressure sensor 2, be processed with on the pipe circumference of sensor holder 1 left end that 3,4 pressure sensing holes 3 of 4 pressure sensing holes are mutually that 90 degree are distributed on the pipe circumference of sensor holder 1 left end and be communicated with (as shown in Figure 3) with 4 semicircle apertures 4 on the sensor holder 1 left end internal chamber wall; Pressure sensor 2 is from the right output port of sensor holder 1 is packed the inner chamber of sensor holder 1 into, be screwed into compressing the right-hand member of plug screw 5 then from sensor holder 1, pressure sensor 2 is compressed, utilize the step on the sensor holder 1 that the boss on the pressure sensor 2 is positioned at step place on the sensor holder 1; Seal with 7 pairs of pressure sensors 2 of two O-ring seals again, guarantee that pressure surpasses more than the 40MPa can both seal fully.The left end of pressure sensor 2 is communicated with semicircle aperture 4, and the holding wire 6 of sensor 2 is connected on the right side of pressure sensor 2.
Because the left end of sensor holder 1 is a special position that is directly installed on the pressure gauge, this position is sealing position fixing between pressure gauge and the seating nipple, therefore pressure sensor 2 can not directly be experienced pressure from the left side, and must be indirectly experiences external pressure by 4 pressure sensing holes 3 on the pipe circumference and 4 semicircle apertures 4 on the internal chamber wall.
Claims (3)
1. electronic pressure gauge structure, it comprises sensor holder (1) and pressure sensor (2), it is characterized in that: be provided with pressure sensing hole (3) on the pipe circumference of sensor holder (1) left end, pressure sensing hole (3) is communicated with semicircle aperture (4) on sensor holder (1) the left end internal chamber wall; Pressure sensor (2) is contained in the inner chamber of sensor holder (1), and its left end is communicated with semicircle aperture (4), and right-hand member compresses with compressing plug screw (5), and holding wire (6) is connected on the right side of pressure sensor (2).
2. electronic pressure gauge structure according to claim 1 is characterized in that: pressure sensing hole (3) is 4, and be mutually 90 the degree be distributed on the pipe circumference of sensor holder (1) left end.
3. electronic pressure gauge structure according to claim 1 is characterized in that: two O-ring seals (7) are housed on pressure sensor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006202008742U CN200964846Y (en) | 2006-10-31 | 2006-10-31 | Electronic pressure gauge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006202008742U CN200964846Y (en) | 2006-10-31 | 2006-10-31 | Electronic pressure gauge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200964846Y true CN200964846Y (en) | 2007-10-24 |
Family
ID=38868860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006202008742U Expired - Fee Related CN200964846Y (en) | 2006-10-31 | 2006-10-31 | Electronic pressure gauge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200964846Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550827B (en) * | 2008-04-02 | 2012-07-04 | 贵州航天凯山石油仪器有限公司 | Method and device for preventing air from leaking in manometer |
| CN105443114A (en) * | 2015-09-30 | 2016-03-30 | 贵州航天凯山石油仪器有限公司 | Method and structure of improving main engine of downhole electronic pressure gauge |
| CN106640045A (en) * | 2017-01-13 | 2017-05-10 | 中国地质大学（武汉） | Protective device for pressure gauge of coal-bed gas well |
| CN106703790A (en) * | 2017-01-19 | 2017-05-24 | 成都海川高科科技有限公司 | Downhole electronic pressure bomb |
-
2006
- 2006-10-31 CN CNU2006202008742U patent/CN200964846Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550827B (en) * | 2008-04-02 | 2012-07-04 | 贵州航天凯山石油仪器有限公司 | Method and device for preventing air from leaking in manometer |
| CN105443114A (en) * | 2015-09-30 | 2016-03-30 | 贵州航天凯山石油仪器有限公司 | Method and structure of improving main engine of downhole electronic pressure gauge |
| CN106640045A (en) * | 2017-01-13 | 2017-05-10 | 中国地质大学（武汉） | Protective device for pressure gauge of coal-bed gas well |
| CN106703790A (en) * | 2017-01-19 | 2017-05-24 | 成都海川高科科技有限公司 | Downhole electronic pressure bomb |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guizhou Aerospace Control Technology Co., Ltd. Assignor: Guizhou Aerospace Kaishan Petroleum Instrument Co., Ltd. Contract fulfillment period: 2009.9.10 to 2013.9.10 Contract record no.: 2009520000014 Denomination of utility model: Electronic pressure meter structure Granted publication date: 20071024 License type: Exclusive license Record date: 20090923 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.9.10 TO 2013.9.10; CHANGE OF CONTRACT Name of requester: GUIZHOU AEROSPACE CONTROL TECHNOLOGY CO., LTD. Effective date: 20090923 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071024 Termination date: 20111031 |