CN108766828A - One kind being used for high pressure SF6Breaker carries the spout of cylindrical projection - Google Patents
One kind being used for high pressure SF6Breaker carries the spout of cylindrical projection Download PDFInfo
- Publication number
- CN108766828A CN108766828A CN201810563781.3A CN201810563781A CN108766828A CN 108766828 A CN108766828 A CN 108766828A CN 201810563781 A CN201810563781 A CN 201810563781A CN 108766828 A CN108766828 A CN 108766828A
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- China
- Prior art keywords
- spout
- small
- big
- high pressure
- cylindrical projection
- 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.)
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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
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/22—Selection of fluids for arc-extinguishing
Abstract
One kind being used for high pressure SF6Breaker carries the spout of cylindrical projection, it is related to power transmission and transforming equipment field, including big spout, small spout and moving arcing contact, the surface of big spout and small spout is equipped with multiple cylindrical projections, multiple cylindrical projections of big spout are located at the surface that big spout forms the port in channel with small spout, multiple cylindrical projections of small spout be located at the port in small spout and big spout formation channel surface and small spout close to moving arcing contact end surface.Invention proposes providing one kind being used for high pressure SF6Breaker carries the spout of cylindrical projection, changes nozzle configuration, in the whirlpool that ejecting opening surface cylindrical rear portion, arc extinguishing gases stream make a variation generation rule, can take away a large amount of energy rapidly during arc blow-out, enhance breaker arc-rupturing capacity.
Description
Technical field
The present invention relates to power transmission and transforming equipment fields, more particularly to a kind of to be used for high pressure SF6Breaker carries cylindrical projection
Spout.
Background technology
High pressure SF6Breaker uses SF6Gas has good break performance as dielectric and arc-extinguishing medium, wide
It is general to apply in high pressure field.With development need, size and performance to breaker have a new requirement, breaker gradually to
Miniaturization so that arc extinguishing space is also smaller and smaller.Influence of the airflow field in arc extinguishing region to arc extinction is increasing, because
This reasonably designs arc extinguishing region particularly significant.In high pressure SF6In breaker, air blown circuit breaker uses extensive.Its
The structure design of middle arc-chutes is high pressure SF6The key points and difficulties problem of circuit breaker design.In air blown circuit breaker, spout is
The critical piece of arc-chutes, electric arc are often blown away in spout by strong arc extinguishing gases, are put out when arc current zero passage to realize
It goes out.In conclusion high pressure SF6The spout of breaker is the critical component of arc-chutes, its structure design directly affects when cut-offfing
Arc quenching effect, it is closely bound up with the connecting-disconnecting function of breaker, also become high pressure SF6The core of circuit breaker design.Design is closed
The spout structure of reason can accelerate the flowing velocity of arc extinguishing gases, and then improve breaking capacity of breaker.If nozzle of circuit breaker
It designs defective, it will slow down arc extinguishing gases arc blow-out speed significantly, it is serious to result even in failure of interruption, reduce breaker
Reliability.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of for high pressure SF6Breaker carries the spout of cylindrical projection,
Small for the arc extinguishing space that solves prior art small volume breaker, the flowing velocities of arc extinguishing gases is slow, arc quenching effect is bad
Problem makes spout and contacts mates part in arc-chutes by changing the motion state of arc extinguishing gases in arc-chutes gas passage
The turbulence intensity of arc extinguishing gases increases, and improves air blown circuit breaker connecting-disconnecting function, the functional reliability of lifting system operation.
The present invention provides a kind of for high pressure SF6Breaker carry cylindrical projection spout, including big spout, small spout and
The surface of moving arcing contact, big spout and small spout is equipped with multiple cylindrical projections, and multiple cylindrical projections of big spout are located at big spray
Mouth forms the surface of the port in channel with small spout, and multiple cylindrical projections of small spout are located at small spout and form channel with big spout
Port surface and small spout close to moving arcing contact end surface.
The height and diameter of each cylindrical projection in the multiple cylindrical projection are depending on the demand of practical breaker.
The arrangement of the multiple cylindrical projection is to be evenly distributed with or be in a row distributed on the big spout and the small spout
On surface.
The quantity of the multiple cylindrical projection is depending on actual demand.
Invention proposes providing one kind being used for high pressure SF6Breaker carries the spout of cylindrical projection, changes spout shape
Shape can rapid band during arc blow-out in the whirlpool that ejecting opening surface cylindrical rear portion, arc extinguishing gases stream make a variation generation rule
A large amount of energy is walked, breaker arc-rupturing capacity is enhanced.
Description of the drawings
Fig. 1 is provided by the invention a kind of for high pressure SF6The structural schematic diagram of spout of the breaker with cylindrical projection；
Fig. 2 is provided by the invention a kind of for high pressure SF6Breaker turbulent generation area in the spout with cylindrical projection
Cylinder schematic diagram and arc extinguishing gases flow to schematic diagram；
Wherein,
1SF6Gas zones, 2 quiet main contacts, 3 big spouts, 4 dynamic main contacs, 5 air cylinders, 6 static arc contacts, 7 shielding cases, 8
Small spout, 9 moving arcing contacts, 10 pistons, 11 cylindrical projections.
Specific implementation mode
Of the existing technology in order to solve the problems, such as, as shown in Figure 1 to Figure 2, the present invention provides one kind being used for high pressure SF6
Breaker carries the spout of cylindrical projection, including big spout 3, small spout 8 and moving arcing contact 9, the table of big spout 3 and small spout 8
Face is equipped with multiple cylindrical projections 11, and multiple cylindrical projections 11 of big spout 3 are located at big spout 3 and form channel with small spout 8
The surface of port, multiple cylindrical projections 11 of small spout 8 be located at small spout 8 and big spout 3 formed channel port surface and
Surface of the small spout 8 close to 9 end of moving arcing contact.
The height and diameter of each cylindrical projection 11 in multiple cylindrical projections 11 are depending on the demand of practical breaker.
The arrangement of multiple cylindrical projections 11 is uniformly distributed or is in a row distributed on the surface of big spout 3 and small spout 8.
The quantity of multiple cylindrical projections 11 is depending on actual demand.
The present invention provides one kind being used for high pressure SF6The operation principle of spout of the breaker with cylindrical projection is as follows：
Breaker includes SF6Gas zones 1, quiet main contact 2, dynamic main contac 4, air cylinder 5, static arc contact 6, shielding case 7,
Moving arcing contact 9 and piston 10, shielding case 7, quiet main contact 2 and dynamic main contac 4 are the metal structure to conduct electricity very well, and quiet arc touches
First 6 and moving arcing contact 9 match part be heat safe tungsten-copper alloy.
When air cylinder 5 moves downward, since the gas channel that big spout 3 and small spout 8 are formed is extremely narrow so that big spout
Arc extinguishing gases flow velocity is high in the channel formed between 3 and small spout 8, when flowing through at 11, due to the change of nozzle configuration, is spraying
Discharge surface cylindrical rear portion, the whirlpool that arc extinguishing gases stream makes a variation generation rule can be taken away rapidly a large amount of during arc blow-out
Energy, enhance breaker arc-rupturing capacity.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (4)
1. one kind being used for high pressure SF6Breaker carries the spout of cylindrical projection, including big spout, small spout and moving arcing contact, big to spray
The surface of mouth and small spout is equipped with multiple cylindrical projections, and multiple cylindrical projections of big spout are located at big spout and are formed with small spout
The surface of the port in channel, multiple cylindrical projections of small spout be located at small spout and big spout formed channel port surface and
Surface of the small spout close to moving arcing contact end.
2. according to claim 1 be used for high pressure SF6Breaker carries the spout of cylindrical projection, which is characterized in that described more
The height and diameter of each cylindrical projection in a cylindrical projection are depending on the demand of practical breaker.
3. according to claim 1 be used for high pressure SF6Breaker carries the spout of cylindrical projection, which is characterized in that described more
The arrangement of a cylindrical projection is uniformly distributed or is in a row distributed on the surface of the big spout and the small spout.
4. according to claim 2 be used for high pressure SF6Breaker carries the spout of cylindrical projection, which is characterized in that described more
The quantity of a cylindrical projection is depending on actual demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810563781.3A CN108766828A (en) | 2018-06-04 | 2018-06-04 | One kind being used for high pressure SF6Breaker carries the spout of cylindrical projection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810563781.3A CN108766828A (en) | 2018-06-04 | 2018-06-04 | One kind being used for high pressure SF6Breaker carries the spout of cylindrical projection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108766828A true CN108766828A (en) | 2018-11-06 |
Family
ID=64002489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810563781.3A Pending CN108766828A (en) | 2018-06-04 | 2018-06-04 | One kind being used for high pressure SF6Breaker carries the spout of cylindrical projection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108766828A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628175A (en) * | 2021-12-21 | 2022-06-14 | 平高集团有限公司 | Circuit breaker arc extinguish chamber and nozzle fixing structure thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162663A (en) * | 2007-10-22 | 2008-04-16 | 沈阳工业大学 | Cyclone type nozzle high-pressure blowing circuit breakers with groove |
| CN101162662A (en) * | 2007-10-22 | 2008-04-16 | 沈阳工业大学 | Cyclone type nozzle high-pressure blowing circuit breakers with blades |
| CN201327792Y (en) * | 2008-12-08 | 2009-10-14 | 北京北开电气股份有限公司 | Low temperature and low gas pressure circuit breaker |
| CN202423116U (en) * | 2011-10-13 | 2012-09-05 | 沈阳工业大学 | Cyclone type energy separation high-voltage SF6 breaker |
| CN102938349A (en) * | 2012-11-08 | 2013-02-20 | 上海思源高压开关有限公司 | High-voltage gas circuit breaker |
-
2018
- 2018-06-04 CN CN201810563781.3A patent/CN108766828A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162663A (en) * | 2007-10-22 | 2008-04-16 | 沈阳工业大学 | Cyclone type nozzle high-pressure blowing circuit breakers with groove |
| CN101162662A (en) * | 2007-10-22 | 2008-04-16 | 沈阳工业大学 | Cyclone type nozzle high-pressure blowing circuit breakers with blades |
| CN201327792Y (en) * | 2008-12-08 | 2009-10-14 | 北京北开电气股份有限公司 | Low temperature and low gas pressure circuit breaker |
| CN202423116U (en) * | 2011-10-13 | 2012-09-05 | 沈阳工业大学 | Cyclone type energy separation high-voltage SF6 breaker |
| CN102938349A (en) * | 2012-11-08 | 2013-02-20 | 上海思源高压开关有限公司 | High-voltage gas circuit breaker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628175A (en) * | 2021-12-21 | 2022-06-14 | 平高集团有限公司 | Circuit breaker arc extinguish chamber and nozzle fixing structure thereof |
| CN114628175B (en) * | 2021-12-21 | 2023-11-17 | 平高集团有限公司 | Arc extinguishing chamber of circuit breaker and spout fixed knot of arc extinguishing chamber |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20181106 |
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| RJ01 | Rejection of invention patent application after publication |