CN106683939A - Solid-sealed polar pole with high tightness for gas-insulated metal-enclosed switchgear - Google Patents
Solid-sealed polar pole with high tightness for gas-insulated metal-enclosed switchgear Download PDFInfo
- Publication number
- CN106683939A CN106683939A CN201710073981.6A CN201710073981A CN106683939A CN 106683939 A CN106683939 A CN 106683939A CN 201710073981 A CN201710073981 A CN 201710073981A CN 106683939 A CN106683939 A CN 106683939A
- Authority
- CN
- China
- Prior art keywords
- shell
- vacuum interrupter
- gas
- pole
- solid
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
- H01H2033/66223—Details relating to the sealing of vacuum switch housings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulators (AREA)
Abstract
The invention relates to a solid-sealed polar pole, in particular to a solid-sealed polar pole with high tightness for gas insulated metal enclosed switchgear. The solid-sealed polar pole comprises a shell, the top of the shell is provided with an outlet terminal and a controller, the bottom of the shell is provided with an inlet terminal, the inside of the shell is provided with a vacuum interrupter, a silicone rubber layer is arranged above the vacuum interrupter, an insulation cylinder is arranged below the vacuum interrupter, both sides of the vacuum interrupter are filled with epoxy resin, both sides of the shell are provided with sealed rooms, an air pump is fixed to the end of each sealed room, each air pump is provided with an air bag, the inside of each sealed room is provided with a press block, and each press block is provided with a pressure sensor. According to the invention, the defect in the prior art that seal tightness of the solid-sealed polar pole decreases due to temperature variation is effectively overcome by the technical scheme disclosed by the invention.
Description
Technical field
The present invention relates to pole, and in particular to a kind of gas-filling cabinet high leakproofness pole.
Background technology
Gas-filling cabinet, also known as Cubicle Gas-Insulated Switchgear, is indoor exchange 50Hz complete sets of electric switchgears and control devices equipment, is applicable model
Enclose relatively wide, can be not only used for the more severe area of environmental condition and the more serious place of pollution, population can be commonly used to again close
The occasions such as Ji Qu, large industrial enterprise and skyscraper, play point, close the work of load current, overload current and short circuit current
With to realize control, measurement, detection and the protection to electric power system.
The pole of ordinary construction is used mostly as the insulation of vacuum interrupter in gas-filling cabinet both at home and abroad at present
Medium, due to using vacuum interrupter, therefore how to improve sealing is a great problem for gas-filling cabinet.If sealing
Effect is bad to not only result in sulfur hexafluoride gas leakage, pollutes environment, and also results in gas-filling cabinet failure, even
Cause electric network fault.Vacuum interrupter can produce very big heat when electric arc is produced inside it, these heats can be transmitted to
Surrounding is used for the epoxy resin for sealing.After cooling after a while, epoxy resin can recover original temperature, but due to
" expand with heat and contract with cold " and epoxy resin a certain degree of deformation will occur so that epoxy resin cannot preferably with vacuum extinction
Room is fitted, and then causes the sealing in pole to decline.
The content of the invention
(1) technical problem for solving
For the disadvantages mentioned above existing for prior art, the invention provides a kind of gas-filling cabinet high leakproofness sealing pole
Post, can effectively overcome the defect for causing pole interior sealing to decline due to temperature change existing for prior art.
(2) technical scheme
To realize object above, the present invention is achieved by the following technical programs：
A kind of gas-filling cabinet high leakproofness pole, including shell, the cover top portion are provided with leading-out terminal and controller,
The outer casing bottom is provided with end of incoming cables, and vacuum interrupter is provided with the shell, and the vacuum interrupter top is provided with silicon rubber
Layer, the vacuum interrupter lower section is provided with insulating cylinder, and the vacuum interrupter both sides are perfused with epoxy resin, the shell both sides
Closed chamber is provided with, the closed chamber end is fixed with air pump, and the air pump is provided with air bag, briquetting is provided with the closed chamber,
The briquetting is provided with pressure sensor.
Preferably, relative with air bag one end on briquetting of the pressure sensor.
Preferably, the pressure sensor and controller radio communication.
Preferably, the air pump and controller radio communication.
Preferably, the closed chamber is provided with four.
Preferably, the closed chamber is symmetrical arranged.
(3) beneficial effect
Compared with prior art, a kind of gas-filling cabinet provided by the present invention high leakproofness pole is in vacuum interrupter
Surrounding is provided with silastic-layer, insulating cylinder and epoxy resin and is sealed, when generation electric arc in vacuum interrupter sends a large amount of
During heat, epoxy resin will produce a certain degree of deformation after original temperature is recovered, pressure sensor be capable of detecting when due to
Epoxy resin produce deformation and cause the pressure change between briquetting and air bag, it then follows " expand with heat and contract with cold " and principle, air pump can
The laminating degree between epoxy resin and silastic-layer, vacuum interrupter and insulating cylinder is adjusted by the inflation/deflation to air bag,
Effectively improve the sealing before and after generation electric arc in pole in vacuum extinction room.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described.It should be evident that drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is schematic structural view of the invention；
In figure：
1st, shell；2nd, leading-out terminal；3rd, end of incoming cables；4th, vacuum interrupter；5th, silastic-layer；6th, insulating cylinder；7th, epoxy resin；
8th, closed chamber；9th, air pump；10th, air bag；11st, briquetting；12nd, pressure sensor；13rd, controller.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
A kind of gas-filling cabinet high leakproofness pole, as shown in figure 1, including shell 1, the top of shell 1 is provided with leading-out terminal 2
With controller 13, the bottom of shell 1 is provided with end of incoming cables 3, vacuum interrupter 4 is provided with shell 1, and the top of vacuum interrupter 4 is provided with silicon
Rubber layer 5, the lower section of vacuum interrupter 4 is provided with insulating cylinder 6, and the both sides of vacuum interrupter 4 are perfused with epoxy resin 7, and the both sides of shell 1 set
There is closed chamber 8, the end of closed chamber 8 is fixed with air pump 9, and air pump 9 is provided with air bag 10, closed chamber 8 and is provided with briquetting 11, briquetting 11
It is provided with pressure sensor 12.
Relative with air bag 10 one end on briquetting 11 of pressure sensor 12, pressure sensor 12 is wireless with controller 13
Communication, air pump 9 and the radio communication of controller 13, closed chamber 8 are provided with four, and closed chamber 8 is symmetrical arranged.
Silastic-layer 5, insulating cylinder 6 and epoxy resin 7 around vacuum interrupter 4 can carry out close to vacuum interrupter 4
Envelope, leading-out terminal 2 and end of incoming cables 3 are used for the wiring of vacuum interrupter 4.Vacuum interrupter 4 can be produced when electric arc is produced inside it
Very big heat, these heats can be transmitted to around be used for seal epoxy resin 7, through cooling after a while after,
Epoxy resin 7 can recover original temperature, but due to " expand with heat and contract with cold " and epoxy resin 7 a certain degree of shape will occur
Become.
Electric arc produces the initial stage, and the temperature of epoxy resin 7 is higher, and now the volume of epoxy resin 7 will increase, and promote briquetting 11
Press to air bag 10, pressure sensor 12 can detect the pressure between briquetting 11 and air bag 10, and by radio communication by data
Controller 13 is sent to, controller 13 controls air pump 9 to be evacuated by radio communication again so that the volume of air bag 10 reduces, it is to avoid ring
Oxygen tree fat 7 causes to damage with vacuum interrupter 4 due to mutually extruding.
After electric arc is produced, epoxy resin 7 can recover original temperature through cooling after a while, now epoxy resin 7
Volume will reduce, and the pressure between briquetting 11 and air bag 10 reduces, and controller 13 controls air pump 9 to be inflated in air bag 10 so that
Briquetting 11 presses to epoxy resin 7, it is to avoid form air layer between epoxy resin 7 and vacuum interrupter 4 due to not fitting, effectively
Improve the sealing before and after generation electric arc in pole in vacuum interrupter 4.
A kind of gas-filling cabinet high leakproofness pole provided by the present invention is provided with silicon rubber around vacuum interrupter
Glue-line, insulating cylinder and epoxy resin are sealed, when electric arc is produced in vacuum interrupter and send amount of heat, epoxy resin
A certain degree of deformation will be produced after original temperature is recovered, pressure sensor is capable of detecting when due to the shape that epoxy resin is produced
Become and cause the pressure change between briquetting and air bag, it then follows " expand with heat and contract with cold " principle, air pump can be by the charge and discharge to air bag
Gas adjusts the laminating degree between epoxy resin and silastic-layer, vacuum interrupter and insulating cylinder, effectively improves and is gone out in vacuum
Sealing in arc chamber before and after generation electric arc in pole.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention has been described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic；And these modification or
Replace, the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution can't be made.
Claims (6)
1. a kind of gas-filling cabinet high leakproofness pole, it is characterised in that：Including shell (1), shell (1) top is provided with
Leading-out terminal (2) and controller (13), shell (1) bottom are provided with end of incoming cables (3), the shell (1) and are provided with vacuum extinction
Room (4), vacuum interrupter (4) top is provided with silastic-layer (5), and vacuum interrupter (4) lower section is provided with insulating cylinder
(6), vacuum interrupter (4) both sides are perfused with epoxy resin (7), and shell (1) both sides are provided with closed chamber (8), described
Closed chamber (8) end is fixed with air pump (9), and the air pump (9) is provided with air bag (10), the closed chamber (8) and is provided with briquetting
(11), the briquetting (11) is provided with pressure sensor (12).
2. gas-filling cabinet according to claim 1 high leakproofness pole, it is characterised in that：The pressure sensor
(12) one end relative with air bag (10) on briquetting (11).
3. gas-filling cabinet according to claim 1 high leakproofness pole, it is characterised in that：The pressure sensor
(12) with controller (13) radio communication.
4. gas-filling cabinet according to claim 1 high leakproofness pole, it is characterised in that：The air pump (9) and control
Device (13) radio communication processed.
5. gas-filling cabinet according to claim 1 high leakproofness pole, it is characterised in that：The closed chamber (8) sets
There are four.
6. gas-filling cabinet according to claim 5 high leakproofness pole, it is characterised in that：The closed chamber (8) is right
Claim to set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710073981.6A CN106683939B (en) | 2017-02-10 | 2017-02-10 | A kind of gas-filling cabinet high leakproofness pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710073981.6A CN106683939B (en) | 2017-02-10 | 2017-02-10 | A kind of gas-filling cabinet high leakproofness pole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106683939A true CN106683939A (en) | 2017-05-17 |
| CN106683939B CN106683939B (en) | 2018-12-11 |
Family
ID=58860900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710073981.6A Active CN106683939B (en) | 2017-02-10 | 2017-02-10 | A kind of gas-filling cabinet high leakproofness pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106683939B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020064300A1 (en) * | 2018-09-26 | 2020-04-02 | Siemens Aktiengesellschaft | High-voltage switch gear comprising a sensor array and method for using the sensors |
| CN112670872A (en) * | 2021-02-01 | 2021-04-16 | 杨裕显 | High-low voltage power distribution cabinet |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020149372A1 (en) * | 1999-12-16 | 2002-10-17 | Hitachi, Ltd. | Vacuum switch including vacuum-measurement devices, switchgear using the vacuum switch, and operation method thereof |
| CN201893517U (en) * | 2010-07-14 | 2011-07-06 | 沈阳昊诚电气股份有限公司 | 24 kV small-sized vacuum load switch cabinet |
| CN102800523A (en) * | 2012-08-08 | 2012-11-28 | 成都凯赛尔电子有限公司 | Solid-sealed polar pole realizing on-line monitoring of vacuum degree |
| CN103000442A (en) * | 2012-11-30 | 2013-03-27 | 北海银河开关设备有限公司 | Solid-sealed polar pole for intelligent vacuum breaker |
-
2017
- 2017-02-10 CN CN201710073981.6A patent/CN106683939B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020149372A1 (en) * | 1999-12-16 | 2002-10-17 | Hitachi, Ltd. | Vacuum switch including vacuum-measurement devices, switchgear using the vacuum switch, and operation method thereof |
| CN201893517U (en) * | 2010-07-14 | 2011-07-06 | 沈阳昊诚电气股份有限公司 | 24 kV small-sized vacuum load switch cabinet |
| CN102800523A (en) * | 2012-08-08 | 2012-11-28 | 成都凯赛尔电子有限公司 | Solid-sealed polar pole realizing on-line monitoring of vacuum degree |
| CN103000442A (en) * | 2012-11-30 | 2013-03-27 | 北海银河开关设备有限公司 | Solid-sealed polar pole for intelligent vacuum breaker |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020064300A1 (en) * | 2018-09-26 | 2020-04-02 | Siemens Aktiengesellschaft | High-voltage switch gear comprising a sensor array and method for using the sensors |
| CN112670872A (en) * | 2021-02-01 | 2021-04-16 | 杨裕显 | High-low voltage power distribution cabinet |
| CN112670872B (en) * | 2021-02-01 | 2022-05-17 | 电管家能源管理（上海）有限公司 | High-low voltage power distribution cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106683939B (en) | 2018-12-11 |
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