CN202255944U - Detection sampling valve of transformer - Google Patents
Detection sampling valve of transformer Download PDFInfo
- Publication number
- CN202255944U CN202255944U CN2011203744782U CN201120374478U CN202255944U CN 202255944 U CN202255944 U CN 202255944U CN 2011203744782 U CN2011203744782 U CN 2011203744782U CN 201120374478 U CN201120374478 U CN 201120374478U CN 202255944 U CN202255944 U CN 202255944U
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- CN
- China
- Prior art keywords
- transformer
- valve
- sensor
- spherical valve
- joint sleeve
- 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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- Testing Relating To Insulation (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to an auxiliary device on a transformer, in particular to a detection sampling valve which has a detection function and is used for extracting insulating oil in the transformer. The detection sampling valve comprises a spherical valve which is arranged on the lower part of a box body of the transformer. The detection sampling valve is characterized in that: a connecting sleeve is arranged at an outlet of the spherical valve in a closed mode; an oil drainage valve is arranged on the connecting sleeve; one end of a sensor conducting pipe is in sealing connection with an insertion type ultrahigh-frequency partial-discharge monitoring sensor; a conducting wire on the insertion type ultrahigh-frequency partial-discharge monitoring sensor stretches out of the other end of the sensor conducting pipe; the sensor conducting pipe sequentially passes through the connecting sleeve, the spherical valve and a hole in a valve core in the spherical valve; the insertion type ultrahigh-frequency partial-discharge monitoring sensor is placed in the box body of the transformer; and the outer wall of the sensor conducting pipe is in sealing connection with an inner hole of the connecting sleeve. The detection sampling valve has the characteristics of reasonable structure, convenience for use and the like, and is quite applicable to the conventional high-voltage and ultrahigh-voltage transformers.
Description
Technical field
The utility model relates to the servicing unit on a kind of transformer, particularly with measuring ability and the detection sample valve that extracts insulating oil in the transformer.
Background technology
For high pressure and EHV transformer are monitored in real time, all adopting plug-in type high-frequency local discharging monitoring sensor is installed at present, is the quality that regularly detects insulating oil in the transformer simultaneously, and the insulating oil sample tap need be installed in the transformer-cabinet bottom.Present way is normally distinguished sensor installation and insulating oil sample tap at the different parts of transformer-cabinet; Cause the increase of leakage point on the one hand, existing on the other hand insulating oil sample tap is to be employed in the design that the transformer tank wall is installed cored screw, and transformer-cabinet bottom oil pressure is bigger; Easy oil spout when getting oil; Cause transformer casing and working site to pollute, also cause the oil sample cleanliness poor simultaneously, influence the status analysis of transformer insulation oil.
Summary of the invention
The purpose of the utility model is the defective that overcomes prior art, provides a kind of and both plug-in type high-frequency local discharging monitoring sensor can be installed conveniently, can conveniently take the transformer of insulating oil in the transformer to detect sample valve again.
For realizing the purpose of the utility model; The technical scheme that is adopted is: a kind of transformer detects sample valve; Comprise the spherical valve that is installed in the transformer-cabinet bottom, it is characterized in that the airtight joint sleeve that is equipped with, oil discharging valve is installed on joint sleeve in the exit of spherical valve; One end of sensor conduit is put the monitoring sensor sealing with plug-in type ultrahigh frequency office and is linked to each other; The lead that plug-in type ultrahigh frequency office puts on the monitoring sensor stretches out from the other end of sensor conduit; Sensor conduit passes the hole in the spool in joint sleeve, spherical valve and the spherical valve in proper order; Monitoring sensor is put in plug-in type ultrahigh frequency office be placed in the transformer-cabinet, the outer wall of sensor conduit links to each other with the sealing of adapter sleeve endoporus.
The dog screw that sensor conduit is fixing is installed on above-mentioned joint sleeve.
The oil discharging valve that the utility model is put monitoring sensor and insulating oil with plug-in type ultrahigh frequency office all is integrated on the spherical valve; Reduced the open amount on the transformer-cabinet; Reduce the leakage point and the processing cost of insulating oil, and when high pressure and EHV transformer are monitored in real time, can conveniently carry out the sampling work of insulating oil; Easy oil spout when having solved existing sampling process and getting oil; Cause transformer casing and working site to pollute, also cause the oil sample cleanliness poor simultaneously, influence the problems such as status analysis of transformer insulation oil.This sample valve has characteristics such as rational in infrastructure, easy to use, is highly suitable on existing high pressure and the EHV transformer to use.
Description of drawings
Accompanying drawing 1 is the cross-sectional view of the utility model.
Embodiment
As shown in Figure 1, in the bottom of transformer-cabinet 2 spherical valve 3 is installed, the airtight joint sleeve 8 that is equipped with in the left end exit of spherical valve.Joint sleeve is connected with spherical valve, can adopt the method downlink connection or is threaded according to the form of spherical valve.Oil discharging valve 7 is installed on joint sleeve.
Put the sealing between monitoring sensor 1 and spherical valve and the joint sleeve in order to guarantee plug-in type ultrahigh frequency office; Monitoring sensor is put in plug-in type ultrahigh frequency office to be installed in the sensor conduit 4; The left end that makes sensor conduit is put the monitoring sensor sealing with plug-in type ultrahigh frequency office and is linked to each other; The lead 6 that plug-in type ultrahigh frequency office puts on the monitoring sensor stretches out from the in addition right-hand member of sensor conduit; Sensor conduit passes the hole in the spool 9 in joint sleeve, spherical valve and the spherical valve in proper order, monitoring sensor is put in plug-in type ultrahigh frequency office be placed in the transformer-cabinet 2, and the outer wall of the right part of sensor conduit 4 links to each other through the O-ring seal sealing with joint sleeve 8 endoporus.For making joint sleeve held stationary vertically, the dog screw 5 that sensor conduit is fixing is installed on joint sleeve.
Claims (2)
1. a transformer detects sample valve, comprises the spherical valve that is installed in the transformer-cabinet bottom, it is characterized in that the airtight joint sleeve (8) that is equipped with in the exit of spherical valve (3), and oil discharging valve (7) is installed on joint sleeve; One end of sensor conduit (4) is put monitoring sensor (1) sealing with plug-in type ultrahigh frequency office and is linked to each other; The lead that plug-in type ultrahigh frequency office puts on the monitoring sensor (1) stretches out from the other end of sensor conduit (4); Sensor conduit passes the hole in the spool in joint sleeve, spherical valve and the spherical valve (9) in proper order; Monitoring sensor (1) is put in plug-in type ultrahigh frequency office be placed in the transformer-cabinet (2), the outer wall of sensor conduit (4) links to each other with the sealing of joint sleeve (8) endoporus.
2. transformer according to claim 1 detects sample valve, it is characterized in that on above-mentioned joint sleeve (8), being equipped with the dog screw (5) that sensor conduit (4) is fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203744782U CN202255944U (en) | 2011-09-30 | 2011-09-30 | Detection sampling valve of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203744782U CN202255944U (en) | 2011-09-30 | 2011-09-30 | Detection sampling valve of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202255944U true CN202255944U (en) | 2012-05-30 |
Family
ID=46117169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203744782U Expired - Fee Related CN202255944U (en) | 2011-09-30 | 2011-09-30 | Detection sampling valve of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202255944U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267198A (en) * | 2013-04-18 | 2013-08-28 | 国家电网公司 | Handy oil extraction valve for transformers |
| CN104198905A (en) * | 2014-09-22 | 2014-12-10 | 杭州申昊科技股份有限公司 | On-line transformer partial discharge monitoring device with oil extraction function |
| CN105738155A (en) * | 2016-05-12 | 2016-07-06 | 上海沪东造船阀门有限公司 | Oil product sampling device |
| CN107237921A (en) * | 2017-06-16 | 2017-10-10 | 国家电网公司 | Transformer takes oily special service valve |
-
2011
- 2011-09-30 CN CN2011203744782U patent/CN202255944U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267198A (en) * | 2013-04-18 | 2013-08-28 | 国家电网公司 | Handy oil extraction valve for transformers |
| CN104198905A (en) * | 2014-09-22 | 2014-12-10 | 杭州申昊科技股份有限公司 | On-line transformer partial discharge monitoring device with oil extraction function |
| CN105738155A (en) * | 2016-05-12 | 2016-07-06 | 上海沪东造船阀门有限公司 | Oil product sampling device |
| CN107237921A (en) * | 2017-06-16 | 2017-10-10 | 国家电网公司 | Transformer takes oily special service valve |
| CN107237921B (en) * | 2017-06-16 | 2018-11-27 | 国家电网公司 | Transformer takes oily special service valve |
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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: 20120530 Termination date: 20180930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |