CN202649239U - Dielectric window sensor mounting structure - Google Patents
Dielectric window sensor mounting structure Download PDFInfo
- Publication number
- CN202649239U CN202649239U CN 201220189567 CN201220189567U CN202649239U CN 202649239 U CN202649239 U CN 202649239U CN 201220189567 CN201220189567 CN 201220189567 CN 201220189567 U CN201220189567 U CN 201220189567U CN 202649239 U CN202649239 U CN 202649239U
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- CN
- China
- Prior art keywords
- hole cover
- hand hole
- manhole
- cover plate
- seal
- 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
The utility model relates to a dielectric window sensor mounting structure. The dielectric window sensor mounting structure comprises a transformer manhole/hand hole cover plate. An insulating medium plate is attached to the outside of the manhole/hand hole cover plate. A sensor is mounted outside the insulating medium plate. Two annular seal grooves are formed in the manhole/hand hole cover plate. A seal ring which is matched with the insulating medium plate in a sealing manner is arranged in each of the two annular seal grooves. An annular seal groove is further formed in the insulating medium plate, and a seal ring which is matched with the manhole/hand hole cover plate in a sealing manner is embedded into the seal groove. According to the dielectric window sensor mounting structure of the utility model, a three-layer seal structure is adopted, two annular seal grooves are formed in the transformer manhole/hand hole cover plate separately, an annular seal groove is formed in the epoxy resin board, a seal ring is embedded into each of the three seal grooves, and the seal ring on the epoxy resin board is located at the middle position, so that a canine type arrangement is formed. Through the structure, the sealing reliability is improved, and a layer of seal ring is prevented from easy oil leakage condition effectively.
Description
Technical field
The utility model belongs to field of power, particularly a kind of medium window sensor fixing structure.
Background technology
The intelligentized realization of intelligent substation primary equipment will promote the construction of intelligent grid greatly.At present, the office of transformer puts and detects the mounting means that mainly contains three kinds of sensors:
(1) built-in sensor, be about to antenna and be installed in well transformer inside with epoxy encapsulation, be immersed in the transformer oil, this mounting means is prone to discharge scenario, and the voltage withstand class to epoxy resin requires high, safe reliability is low, changes the transformer that bothers and be only applicable to new production, must be pre-buried in advance.
(2) rod-pulling type sensor namely is sent to fuel outlet valve inside with pull bar with sensor, this mounting means complex structure, is prone to oil impregnate, and inapplicable for some transformer.
(3) medium window sensor, namely stick insulation medium board in transformer manhole/hand hole cover plate outside, form again medium window, outside insulation medium board, install again a UHF high frequency sensors, the operation conditions that this mounting means is convenient, flexible, do not affect transformer inside, its shortcoming is that its hermetically-sealed construction is only by opening a seal groove at manhole/hand hole cover plate, the mode of O-ring seal realizes sealing on the pad, this sealing means reliability is not high, the situation that transformer oil oozes out often occurs in using at the scene.
The utility model content
The purpose of this utility model provides a kind of medium window sensor fixing structure, is prone to the situation of oil impregnate to solve existing mounting means transformer.
For achieving the above object, the utility model adopts following technical scheme: a kind of medium window sensor fixing structure, comprise transformer manhole/hand hole cover plate, described transformer manhole/hand hole cover plate outside insulation medium board that has been sticked, insulation medium board is equiped with a sensor outward, offer two annular seal grooves on the plate face of being combined with insulation medium board on described transformer manhole/hand hole cover plate, be equipped with the O-ring seal that is sealed and matched with insulation medium board in described two annular seal grooves, hardening with transformer manhole/hand hole cover on the described insulation medium board also offers an annular seal groove on the plate face that closes, and the sealing groove is embedded with the O-ring seal that is sealed and matched with insulation medium board.
A seal groove of offering on two seal grooves offering on described manhole/hand hole cover plate and the insulation medium board consists of three concentric circless, and the seal groove on the insulation medium board mediates
The utility model medium window sensor fixing structure adopts three-layer sealed structure, open two annular seal grooves at transformer manhole/hand hole cover plate respectively, open an annular seal groove on the epoxy resin board, equal embedding sealing circle in three seal grooves, and the O-ring seal on the epoxy resin board mediates, and forms the canine tooth type and arranges.This structure has improved sealing reliability, can prevent effectively that one deck O-ring seal is prone to the situation of oil impregnate, is conducive to the promotion and application of medium window installation of sensors mode.
Description of drawings
Fig. 1 is the structural representation of the utility model medium window sensor fixing structure;
Fig. 2 is the transverse cross-sectional view of the utility model medium window sensor hermetically-sealed construction.
Embodiment
Be illustrated in figure 1 as the synoptic diagram of the utility model medium window sensor fixing structure embodiment, as seen from the figure, this mounting structure comprises transformer manhole/hand hole cover plate 1, transformer manhole/hand hole cover plate outside insulation medium board 2 that has been sticked, and the insulation medium board in the present embodiment adopts epoxy resin board; Insulation medium board is equiped with a UHF sensor 6 outward, and the UHF sensor is provided with sensor outer housing 3 outward, is provided with web joint 5 between UHF sensor and the sensor outer housing, and this web joint is located in the shell, and the upper end of UHF sensor is provided with cover plate of outer casing 4; Offer two annular seal grooves 71 and 72 on transformer manhole/hand hole cover plate 1 with on the plate face of insulation medium board 2 combinations, be equipped with the O-ring seal that is sealed and matched with insulation medium board in two annular seal grooves, hardening with transformer manhole/hand hole cover on the insulation medium board offers an annular seal groove 8 on the plate face that closes, and the sealing groove is embedded with the O-ring seal that is sealed and matched with insulation medium board.
Be illustrated in figure 2 as the transverse cross-sectional view of the utility model medium window sensor hermetically-sealed construction, two seal grooves 71 offering on transformer manhole/hand hole cover plate in the present embodiment, 72 and insulation medium board on the seal groove 8 offered consist of three concentric circless, and the seal groove on the insulation medium board 8 mediates.
The utility model medium window sensor fixing structure is prone to the deficiency of transformer oil seepage in use mainly for the medium window UHF sensor that detects the transformer partial discharge signal, adopt three-layer sealed structure to replace one deck hermetically-sealed construction of classic method, this structure can effectively prevent the situation of transformer oil seepage, improve the reliability of sealing, be conducive to applying of medium window installation of sensors pattern.
Claims (2)
1. medium window sensor fixing structure, comprise transformer manhole/hand hole cover plate, described transformer manhole/hand hole cover plate outside insulation medium board that has been sticked, insulation medium board is equiped with a sensor outward, it is characterized in that: offer two annular seal grooves on the plate face of being combined with insulation medium board on described transformer manhole/hand hole cover plate, be equipped with the O-ring seal that is sealed and matched with insulation medium board in described two annular seal grooves, hardening with transformer manhole/hand hole cover on the described insulation medium board also offers an annular seal groove on the plate face that closes, and the sealing groove is embedded with the O-ring seal that is sealed and matched with insulation medium board.
2. medium window sensor fixing structure according to claim 1, it is characterized in that: a seal groove of offering on two seal grooves offering on described manhole/hand hole cover plate and the insulation medium board consists of three concentric circless, and the seal groove on the insulation medium board mediates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220189567 CN202649239U (en) | 2012-04-28 | 2012-04-28 | Dielectric window sensor mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220189567 CN202649239U (en) | 2012-04-28 | 2012-04-28 | Dielectric window sensor mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202649239U true CN202649239U (en) | 2013-01-02 |
Family
ID=47418330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220189567 Expired - Fee Related CN202649239U (en) | 2012-04-28 | 2012-04-28 | Dielectric window sensor mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202649239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249113A (en) * | 2016-08-18 | 2016-12-21 | 张春辉 | A kind of method to set up of equivalence transducer |
-
2012
- 2012-04-28 CN CN 201220189567 patent/CN202649239U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249113A (en) * | 2016-08-18 | 2016-12-21 | 张春辉 | A kind of method to set up of equivalence transducer |
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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: 20130102 Termination date: 20190428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |