CN206921742U - A kind of vacuum circuit breaker for complete high-tension apparatus - Google Patents
A kind of vacuum circuit breaker for complete high-tension apparatus Download PDFInfo
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- CN206921742U CN206921742U CN201720891380.1U CN201720891380U CN206921742U CN 206921742 U CN206921742 U CN 206921742U CN 201720891380 U CN201720891380 U CN 201720891380U CN 206921742 U CN206921742 U CN 206921742U
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Abstract
The utility model belongs to complete high-tension apparatus technical field, discloses a kind of vacuum circuit breaker for complete high-tension apparatus, existing complicated to cause by arranging sulfur hexafluoride fluid reservoir for solving the problems, such as.The utility model includes basement, arc-chutes and outlet room, the basement and outlet room are connected to the both sides of arc-chutes, set in the arc-chutes and moving contact and static contact are installed, moving contact electrically connects with the wire in basement, static contact electrically connects with the wire in outlet room, the arc-chutes include cylinder, tonifying Qi cylinder is connected with the cylinder, sealing-plug is installed in the tonifying Qi cylinder, tonifying Qi cylinder is divided into hyperbaric chamber and the low-pressure chamber being interconnected with arc-chutes by sealing-plug, check valve for being filled into the sulfur hexafluoride in hyperbaric chamber in low-pressure chamber is installed on the sealing-plug.
Description
Technical field
The utility model belongs to complete high-voltage equipment box technical field, and in particular to a kind of for the true of complete high-tension apparatus
Empty breaker.
Background technology
Complete high-tension apparatus (high voltage power distributing cabinet) refer to voltage 3kV and more than, frequency 50Hz and following power system
The indoor and outdoor AC switchgear of middle operation.It is mainly used in power system (including power plant, transformer station, electric line
With the user such as industrial and mining enterprises) control and protection, can both need to put into a part of power equipment or circuit according to operation of power networks
Or it is out of service, also faulty component can quickly be cut off from power network in power equipment or line failure, so as to ensure electricity
The normal operation of no failure part and equipment, the safety of operating maintenance personnel in net.Therefore, high pressure complete set of equipments is extremely important
Equipment for power transmission and distribution, its safe and reliable operation is of great significance to safely, effectively operation of power system tool.
And as very important vacuum circuit breaker in complete high-tension apparatus because of contact gap after its arc-extinguishing medium and arc extinguishing
Dielectric be all high vacuum and gain the name, its have small volume, it is in light weight, do not have to maintenance suitable for frequent operation, arc extinguishing
Advantage, apply in power distribution network and more popularize.Sulfur hexafluoride has excellent insulation and arc extinction performance, therefore is widely used in height
In voltage breaker, sulfur hexafluoride density can taper into sulfur hexafluoride breaker after a long time use, so as to influence arc extinguishing
Effect.
There is two ways in the prior art to solve the problems, such as that sulfur hexafluoride sealing is reduced：
1 is manually to overhaul, but under the influence of high temperature, sulfur hexafluoride gas can be decomposed, and be become after analyte rainwater
Into aggressive electrolyte, especially some high toxicity analytes, such as SF4, S2F2, SOF2, HF, SO2, such as a large amount of suction human bodies
Dizzy and pulmonary edema, or even stupor, death can be caused, maintainer is damaged；Therefore the mode manually overhauled there is
Potential safety hazard.
2 be to arrange sulfur hexafluoride fluid reservoir, and sulfur hexafluoride, this mode are filled in the control of through hole circuit from trend arc-chutes
Cause it is complicated, for control system require it is higher.
Utility model content
The utility model is existing complicated to cause by arranging sulfur hexafluoride fluid reservoir in order to solve the problems, such as, and carries
For a kind of vacuum circuit breaker for complete high-tension apparatus, it is not necessary to arrange control system can automatically adjust in arc-chutes six
The density of sulfur fluoride, so as to reduce manufacturing cost；The repair and maintenance cycle of breaker is extended simultaneously, so as to reduce repair and maintenance
Number reduce security risk.
To solve technical problem, technical scheme is used by the utility model：
A kind of vacuum circuit breaker for complete high-tension apparatus, including basement, arc-chutes and outlet room, the basement
The both sides of arc-chutes are connected to outlet room, is set in the arc-chutes and moving contact and static contact, moving contact and inlet wire is installed
Indoor wire electrical connection, static contact electrically connect with the wire in outlet room, it is characterised in that and the arc-chutes include cylinder,
Tonifying Qi cylinder is connected with the cylinder, sealing-plug is installed in the tonifying Qi cylinder, sealing-plug by tonifying Qi cylinder be divided into hyperbaric chamber and with
The interconnected low-pressure chamber of arc-chutes, it is provided with for the sulfur hexafluoride in hyperbaric chamber to be filled into low-pressure chamber on the sealing-plug
Interior check valve.
The sealing-plug includes cock body, and the stepped hole of insertion is offered on the cock body；The check valve includes valve seat, institute
The periphery for stating valve seat is provided with and is threadedly coupled with the big footpath section of stepped hole, and passage is offered on valve seat, valve is connected with valve seat
Piece, the back-moving spring for controlling valve block motion seal passage is provided between valve block and valve seat.
The valve seat is provided with the boss to be cooperated with the path section of stepped hole, the path of the passage and stepped hole
The mutually corresponding insertion of section.
Be disposed with from bottom to up between the step of the valve seat and stepped hole lower cushion block, X-type elastic seal ring and on
Cushion block；The lower cushion block, X-type elastic seal ring and upper cushion block are set in the periphery of valve seat.
Compared with prior art, the utility model has the advantages that：
Vacuum circuit breaker provided by the utility model for complete high-tension apparatus is at first, the air pressure of higher-pressure region
Mutually balanced with the elastic force of spring and the pressure sum of low-pressure area, check valve is in the state closed；After long-term when, low pressure
The sulfur hexafluoride in area, which consumes, causes the air pressure of low-pressure area to reduce, and the pressure of higher-pressure region is more than the elastic force of spring and the pressure of low-pressure area
Sum, force the sulfur hexafluoride of check valve opening higher-pressure region to be filled into low-pressure area check valve after balance automatically and balance again,
So sulfur hexafluoride is constantly filled in circulation into arc-chutes.Compared to prior art, the utility model need not can arrange
Other control circuits and equipment, can fill sulfur hexafluoride so that simple in construction into arc-chutes automatically；This practicality simultaneously is new
Type can extend the cycle of the maintenance of vacuum circuit breaker, so as to reduce the number of maintenance, reach reduce operating personnel it is dangerous because
The purpose of element.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of sealing-plug of the present utility model；
Marked in figure：1st, cylinder, 2, moving contact, 3, static contact, 4, basement, 5, outlet room, 6, tonifying Qi cylinder, 7, sealing
Plug, 8, higher-pressure region, 9, low-pressure area, 10, arc-chutes, 11, cock body, 12, through hole, 13, valve body, 14, passage, 15, valve block,
16th, back-moving spring, 17, lower cushion block, 18, X-type elastic seal ring, 19, upper cushion block.
Embodiment
With reference to embodiment, the utility model will be further described, and described embodiment is only that this practicality is new
Type part of the embodiment, it is not whole embodiments.Based on the embodiment in the utility model, the ordinary skill people of this area
Other embodiments used that member is obtained under the premise of creative work is not made, belong to protection model of the present utility model
Enclose.
With reference to accompanying drawing, the vacuum circuit breaker provided by the utility model for complete high-tension apparatus, including basement 4, go out
Arc chamber 10 and outlet room 5, the basement 4 and outlet room 5 are connected to the both sides of arc-chutes 10, and peace is set in the arc-chutes 10
Equipped with moving contact 2 and static contact 3, moving contact 2 electrically connects with the wire in basement 4, static contact 3 and the wire in outlet room 5
Electrical connection, moving contact 2 is moved under the control of the operating mechanism of outside, so as to realize contact of the moving contact 2 with static contact 3
And separation, arc-chutes 10 of the present utility model include cylinder 1, tonifying Qi cylinder 6 is connected with the cylinder 1, is pacified in the tonifying Qi cylinder 6
Equipped with sealing-plug 7, sealing-plug 7 divides tonifying Qi cylinder 6 low-pressure chamber 9 being interconnected for hyperbaric chamber 8 and with arc-chutes 10, the sealing
Check valve for being filled into the sulfur hexafluoride in hyperbaric chamber 8 in low-pressure chamber 9, tonifying Qi of the present utility model are installed on plug 7
Charging connector is installed in cylinder 6, sulfur hexafluoride gas is filled with into hyperbaric chamber 8 by charging connector.
Manufacturing process of the present utility model is first to carry out vacuumize process to arc-chutes and higher-pressure region, then same respectively again
When be filled with sulfur hexafluoride gas into higher-pressure region and arc-chutes.
Sealing-plug 7 of the present utility model includes cock body 11, and the stepped hole 12 of insertion is offered on the cock body 11；The list
Include valve seat 13 to valve, the periphery of the valve seat 13 is provided with to be threadedly coupled with the big footpath section of stepped hole 12, is opened up on valve seat 13
There is passage 14, valve block 15 is connected with valve seat 13, be provided between valve block 15 and valve seat 13 close for controlling valve block 15 to move
Seal the back-moving spring 16 of passage 14.
As a kind of preferable mode of the utility model, the valve seat 13 is provided with the path section phase interworking with stepped hole 12
The boss of conjunction, the passage 14 and the mutually corresponding insertion of the path section of stepped hole 12.
Lower cushion block 17, X-type are disposed with from bottom to up between the step of valve seat 13 and stepped hole 12 of the present utility model
Elastic seal ring 18 and upper cushion block 19；The lower cushion block 17, X-type elastic seal ring 18 and upper cushion block 19 are set in the outer of valve seat 13
Enclose, i other words the valve seat 13 of check valve is mutually threadedly coupled with cock body 11, during threaded connection, by upper cushion block 19,
The effect extruding X-type elastic seal ring 18 of lower cushion block 17 so that the crimp of X-type elastic seal ring 18, realize valve seat 13 and plug
Connection and sealing between body 11 so that the utility model has the characteristics of easy for installation, good sealing effect.
Vacuum circuit breaker provided by the utility model for complete high-tension apparatus is at first, the air pressure of higher-pressure region
Mutually balanced with the elastic force of spring and the pressure sum of low-pressure area, check valve is in the state closed；After long-term when, low pressure
The sulfur hexafluoride in area, which consumes, causes the air pressure of low-pressure area to reduce, and the pressure of higher-pressure region is more than the elastic force of spring and the pressure of low-pressure area
Sum, force the sulfur hexafluoride of check valve opening higher-pressure region to be filled into low-pressure area check valve after balance automatically and balance again,
So sulfur hexafluoride is constantly filled in circulation into arc-chutes.Compared to prior art, the utility model need not can arrange
Other control circuits and equipment, can fill sulfur hexafluoride so that simple in construction into arc-chutes automatically；This practicality simultaneously is new
Type can extend the cycle of the maintenance of vacuum circuit breaker, so as to reduce the number of maintenance, reach reduce operating personnel it is dangerous because
The purpose of element.
Claims (4)
1. a kind of vacuum circuit breaker for complete high-tension apparatus, including basement, arc-chutes and outlet room, the basement and
Outlet room is connected to the both sides of arc-chutes, is set in the arc-chutes and is provided with moving contact and static contact, moving contact and basement
Interior wire electrical connection, static contact electrically connect with the wire in outlet room, it is characterised in that the arc-chutes include cylinder, institute
State and tonifying Qi cylinder is connected with cylinder, sealing-plug is installed in the tonifying Qi cylinder, tonifying Qi cylinder is divided into hyperbaric chamber and with going out by sealing-plug
The interconnected low-pressure chamber of arc chamber, it is provided with for the sulfur hexafluoride in hyperbaric chamber to be filled into low-pressure chamber on the sealing-plug
Check valve.
2. the vacuum circuit breaker according to claim 1 for complete high-tension apparatus, it is characterised in that the sealing-plug bag
Cock body is included, the stepped hole of insertion is offered on the cock body；The check valve includes valve seat, the periphery of the valve seat be provided with
The big footpath section of stepped hole is threadedly coupled, and offers passage on valve seat, valve block is connected with valve seat, is set between valve block and valve seat
There is the back-moving spring for control valve piece motion seal passage.
3. the vacuum circuit breaker according to claim 2 for complete high-tension apparatus, it is characterised in that the valve seat is set
There are the boss to be cooperated with the path section of stepped hole, the passage and the mutually corresponding insertion of the path section of stepped hole.
4. the vacuum circuit breaker according to claim 3 for complete high-tension apparatus, it is characterised in that the valve seat and platform
Lower cushion block, X-type elastic seal ring and upper cushion block are disposed between the step in rank hole from bottom to up；The lower cushion block, X-type bullet
Property sealing ring and upper cushion block are set in the periphery of valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720891380.1U CN206921742U (en) | 2017-07-21 | 2017-07-21 | A kind of vacuum circuit breaker for complete high-tension apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720891380.1U CN206921742U (en) | 2017-07-21 | 2017-07-21 | A kind of vacuum circuit breaker for complete high-tension apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206921742U true CN206921742U (en) | 2018-01-23 |
Family
ID=61346902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720891380.1U Active CN206921742U (en) | 2017-07-21 | 2017-07-21 | A kind of vacuum circuit breaker for complete high-tension apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206921742U (en) |
-
2017
- 2017-07-21 CN CN201720891380.1U patent/CN206921742U/en active Active
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