CN108831790A - Disconnecting switch - Google Patents
Disconnecting switch Download PDFInfo
- Publication number
- CN108831790A CN108831790A CN201810640431.2A CN201810640431A CN108831790A CN 108831790 A CN108831790 A CN 108831790A CN 201810640431 A CN201810640431 A CN 201810640431A CN 108831790 A CN108831790 A CN 108831790A
- Authority
- CN
- China
- Prior art keywords
- cabinet body
- disconnecting switch
- plug
- strip
- gas
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
Disconnecting switch, it is related to a kind of electrical equipment, including switch main body and cabinet body, switch main body includes static contact, moving contact and plug-in strip, switch main body is sealingly disposed in the cabinet body, the static seal terminal and dynamic sealing terminal matched respectively with static contact and moving contact is provided on cabinet body, cabinet body has vacuum interlayer, gas-recycling plant is additionally provided on cabinet body, gas-recycling plant includes air pump and air accumulator, it is stored with compressed nitrogen in air accumulator, plug-in strip opening is provided on cabinet body, plug-in strip is open upper sleeve gasket equipped with insulation rubber sleeve.This isolated switchgear is sealed in the cabinet body full of nitrogen, extraneous dust is completely cut off and impurity can allow constant temperature and humidity in cabinet body simultaneously, due to the contact of not no oxygen, the generation of oxidation reaction is prevented, has greatly improved the service life of disconnecting switch, reduces the incidence of failure.Moreover, after disconnecting switch is exploded, it also can be reduced the generation of fire under the inhibition of nitrogen.
Description
Technical field
The present invention relates to a kind of electrical equipment, especially a kind of disconnecting switch.
Background technique
Disconnecting switch is that one kind is mainly used for " isolated power supply, grid switching operation, to be connected to and cut off low current circuit ", nothing
The switching device of arc-suppression function.Disconnecting switch may explode in use, and explosion is primarily due to disconnecting switch and exists
It is overheated in operation, caused by not got togather completely when mainly overload, contact resistance increase, operate.Blade and knife simultaneously
Mouth contact position repulsion is very big, and the edge of a knife closes not tight, causes surface oxidation, increases contact resistance.Secondly disconnecting switch is drawn, was closed
Cheng Zhonghui causes electric arc, and contact of burning increases contact resistance.Influence whether that other normally set once disconnecting switch explosion
It is standby, great property loss is caused, also will cause heavy casualties sometimes.In use, the environment such as dust, temperature, humidity
Condition causes to the failure of disconnecting switch and service life has a great impact, so if disconnecting switch have sealing, cooling,
The shell of the functions such as damping, datonation-inhibition has then greatly reinforced usability and the service life of electrical equipment.
Summary of the invention
The present invention aiming at the shortcomings in the prior art, provides a kind of disconnecting switch, this isolated switchgear is sealed
In the cabinet body full of nitrogen, extraneous dust is completely cut off and impurity can allow constant temperature and humidity in cabinet body simultaneously, due to not no oxygen
Contact, has prevented the generation of oxidation reaction, has greatly improved the service life of disconnecting switch, reduces the incidence of failure.
Moreover, after disconnecting switch is exploded, it also can be reduced the generation of fire under the inhibition of nitrogen.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：Disconnecting switch, including switch
Main body and cabinet body, the switch main body include static contact, moving contact and plug-in strip, and the switch main body is sealingly disposed in described
Cabinet body in, the static seal terminal matched respectively with the static contact and the moving contact and dynamic is provided on the cabinet body
Hermetic terminal, the cabinet body have vacuum interlayer, are additionally provided with gas-recycling plant on the cabinet body, the gas follows
Loop device includes air pump and air accumulator, and compressed nitrogen is stored in the air accumulator, be additionally provided on the cabinet body with
The air inlet and air outlet that the gas-recycling plant matches are additionally provided with heat exchange dress on the gas-recycling plant
It sets, plug-in strip opening is provided on the cabinet body, the plug-in strip opening upper sleeve gasket is equipped with insulation rubber sleeve, the plug-in strip
It extends in the insulation rubber sleeve, the limit slideway matched with the plug-in strip is additionally provided on the cabinet body.
In above-mentioned technical proposal, it is preferred that the cabinet body surface is coated with heat insulating coat.
In above-mentioned technical proposal, it is preferred that be provided with baroceptor, the baroceptor control in the cabinet body
The operating of the system air pump.
In above-mentioned technical proposal, it is preferred that be additionally provided with temperature sensor and signal transmitting apparatus, institute in the cabinet body
Temperature signal is transmitted to monitoring device by signal transmitting apparatus by the temperature sensor stated.
In above-mentioned technical proposal, it is preferred that the heat-exchange device is external water tank.
In above-mentioned technical proposal, it is preferred that the air accumulator is dismountable.
In above-mentioned technical proposal, it is preferred that be additionally provided with recirculation hole on the cabinet body, be provided on the recirculation hole
Vacuum pump.
This disconnecting switch is placed in the closed space full of nitrogen, and outer layer also has hollow sandwich, thus
Extraneous dust can be completely cut off, and do not fear the stabilization that extraneous climate change keeps internal temperature and humidity.It is intracorporal in cabinet simultaneously
Nitrogen is flowed always, plays the role of radiating to disconnecting switch.The present invention replaces normal air to cool down with nitrogen, subtracts
Oxidation reaction occurs for the disconnecting switch for having lacked the oxygen in air and fever, greatly improve disconnecting switch service life,
Reduce the incidence of failure.There are also datonation-inhibition effects for nitrogen simultaneously, can be reduced fire when disconnecting switch explodes and fire behavior occurs
Harm guarantees the other equipment safety outside cabinet body.
Compared with prior art, the beneficial effects of the invention are as follows：This isolated switchgear, which is sealed, is being full of nitrogen
In cabinet body, completely cut off extraneous dust and impurity can allow constant temperature and humidity in cabinet body simultaneously, due to the contact of not no oxygen, prevents oxygen
The generation for changing reaction, greatly improves the service life of disconnecting switch, reduces the incidence of failure.Moreover, when every
Leave pass explode after, also can be reduced the generation of fire under the inhibition of nitrogen.
Detailed description of the invention
Fig. 1 is schematic diagram of the present invention.
Specific embodiment
Present invention is further described in detail With reference to embodiment.
Embodiment 1：As shown in Figure 1, disconnecting switch, including switch main body 9 and cabinet body 1, the switch main body 9 include
Static contact 91, moving contact 92 and plug-in strip 93, the switch main body 9 are sealingly disposed in the cabinet body 1, the cabinet body 1
On be provided with the static seal terminal 41 and dynamic sealing terminal 42 matched respectively with the static contact 91 and the moving contact 92, institute
The cabinet body 1 stated has vacuum interlayer 11, and 1 surface of cabinet body is coated with heat insulating coat.Stream is additionally provided on the cabinet body 1
Through-hole 3 is provided with vacuum pump 31 on the recirculation hole 3.It is additionally provided with gas-recycling plant on the cabinet body 1, it is described
Gas-recycling plant includes air pump and 6 air accumulators 5, and compressed nitrogen, the air accumulator 5 are stored in the air accumulator 5
It is dismountable.The air inlet 61 matched with the gas-recycling plant and gas outlet 62 are additionally provided on the cabinet body 1,
Heat-exchange device is additionally provided on the gas-recycling plant, the heat-exchange device is external water tank 7.The water
7 bottom of case is provided with relief port, and eduction valve 72 is provided in the relief port, and control institute is provided on the eduction valve 72
State the humidity sensor 73 of eduction valve open and close.Liquid level sensor 74, the level sensing are provided in the water tank 7
Device 74 and humidity sensor 73 control the eduction valve 72 and open or close.Plug-in strip opening, institute are provided on the cabinet body 1
The plug-in strip opening upper sleeve gasket stated is equipped with insulation rubber sleeve 12, and the plug-in strip 93 extends in the insulation rubber sleeve 12,
The limit slideway 13 matched with the plug-in strip 93 is additionally provided on the cabinet body 1.Air pressure is provided in the cabinet body 1
Sensor 83, the baroceptor 83 controls the flow pump 6 and the vacuum pump 31 operates.The cabinet body 1
It is inside additionally provided with temperature sensor 81 and signal transmitting apparatus 82, the temperature sensor 81 will by signal transmitting apparatus 82
Temperature signal is transmitted to monitoring device.
In use, first assemble switch main body 9 and cabinet body 1, static contact 91, moving contact 92 and static seal terminal 41 and move close
Sealing end 42 and plug-in strip 93 and limit slideway 13.So that 1 inner sealing of cabinet body, it subsequently will be in cabinet body 1 by vacuum pump 31
Evacuating air.Nitrogen is then discharged into cabinet body 1 by air pump 6, and is full of in shell 1 under being acted on by air pump 6
Nitrogen is allowed to be recycled after nitrogen from air inlet 61 and gas outlet 62.The heat that nitrogen is taken away carries out heat exchange temperature after passing through water tank
Temperature in 81 moment of sensor monitoring cabinet body 1 is spent, has the abnormal signal transmitting apparatus 82 that passes through to alarm.When baroceptor 83
Air pressure in monitoring cabinet body 1 is carved, has the abnormal signal transmitting apparatus 82 that passes through to alarm, and pass through air pump 6 and vacuum pump at any time
31 carry out air pressure adjustment.Nitrogen can be replaced after being finished by air accumulator 5.This isolated switchgear, which is sealed, to be full of
In the cabinet body of nitrogen, extraneous dust is completely cut off and impurity can allow constant temperature and humidity in cabinet body simultaneously, due to the contact of not no oxygen, Du
The generation of oxidation reaction absolutely, greatly improves the service life of disconnecting switch, reduces the incidence of failure.Not only such as
This also can be reduced the generation of fire after disconnecting switch is exploded under the inhibition of nitrogen.
Claims (7)
1. disconnecting switch, including switch main body and cabinet body, the switch main body includes static contact, moving contact and plug-in strip, spy
Sign is, the switch main body is sealingly disposed in the cabinet body, be provided on the cabinet body respectively with the static contact
The static seal terminal and dynamic sealing terminal matched with the moving contact, the cabinet body have vacuum interlayer, the cabinet body
On be additionally provided with gas-recycling plant, the gas-recycling plant includes air pump and air accumulator, the air accumulator memory
Compressed nitrogen is contained, the air inlet and air outlet matched with the gas-recycling plant, institute are additionally provided on the cabinet body
It is additionally provided with heat-exchange device on the gas-recycling plant stated, plug-in strip opening is provided on the cabinet body, the plug-in strip is opened
Mouth upper sleeve gasket is equipped with insulation rubber sleeve, and the plug-in strip is extended in the insulation rubber sleeve, also set on the cabinet body
It is equipped with the limit slideway matched with the plug-in strip.
2. disconnecting switch according to claim 1, it is characterized in that, the cabinet body surface is coated with heat insulating coat.
3. disconnecting switch according to claim 1, it is characterized in that, baroceptor is provided in the cabinet body, it is described
The baroceptor control air pump operating.
4. disconnecting switch according to claim 1, it is characterized in that, temperature sensor and letter are additionally provided in the cabinet body
Temperature signal is transmitted to monitoring device by signal transmitting apparatus by number transmitting device, the temperature sensor.
5. disconnecting switch according to claim 1, it is characterized in that, the heat-exchange device is external water tank.
6. disconnecting switch according to claim 1, it is characterized in that, the air accumulator is dismountable.
7. disconnecting switch according to claim 1, it is characterized in that, recirculation hole is additionally provided on the cabinet body, it is described
Vacuum pump is provided on recirculation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640431.2A CN108831790A (en) | 2018-06-21 | 2018-06-21 | Disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640431.2A CN108831790A (en) | 2018-06-21 | 2018-06-21 | Disconnecting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108831790A true CN108831790A (en) | 2018-11-16 |
Family
ID=64141691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640431.2A Pending CN108831790A (en) | 2018-06-21 | 2018-06-21 | Disconnecting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108831790A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030080841A1 (en) * | 2001-11-01 | 2003-05-01 | Hitachi, Ltd. | Gas insulation transformer |
| CN106455393A (en) * | 2016-08-31 | 2017-02-22 | 王轶珂 | ''Three without'' explosion prevention method for explosion-proof cabinet of electric equipment |
| CN107887818A (en) * | 2017-12-20 | 2018-04-06 | 宁波宏弘智能科技有限公司 | A kind of sealed explosion-proof distribution box |
| CN108023285A (en) * | 2017-11-29 | 2018-05-11 | 江西省互电气有限公司 | A kind of explosion proof and corrosion protection power distribution cabinet |
-
2018
- 2018-06-21 CN CN201810640431.2A patent/CN108831790A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030080841A1 (en) * | 2001-11-01 | 2003-05-01 | Hitachi, Ltd. | Gas insulation transformer |
| CN106455393A (en) * | 2016-08-31 | 2017-02-22 | 王轶珂 | ''Three without'' explosion prevention method for explosion-proof cabinet of electric equipment |
| CN108023285A (en) * | 2017-11-29 | 2018-05-11 | 江西省互电气有限公司 | A kind of explosion proof and corrosion protection power distribution cabinet |
| CN107887818A (en) * | 2017-12-20 | 2018-04-06 | 宁波宏弘智能科技有限公司 | A kind of sealed explosion-proof distribution box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181116 |
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| RJ01 | Rejection of invention patent application after publication |