CN107464708A - Primary cut-out with gas cooling passage - Google Patents
Primary cut-out with gas cooling passage Download PDFInfo
- Publication number
- CN107464708A CN107464708A CN201710892609.8A CN201710892609A CN107464708A CN 107464708 A CN107464708 A CN 107464708A CN 201710892609 A CN201710892609 A CN 201710892609A CN 107464708 A CN107464708 A CN 107464708A
- Authority
- CN
- China
- Prior art keywords
- support base
- kuppe
- cooling passage
- primary cut
- gas cooling
- 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
Links
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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
- H01H71/0214—Housing or casing lateral walls containing guiding grooves or special mounting facilities
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
- H01H2009/526—Cooling of switch parts of the high voltage switches
-
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H2033/888—Deflection of hot gasses and arcing products
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Circuit Breakers (AREA)
Abstract
The invention discloses a kind of primary cut-out with gas cooling passage, spout and support base including housing and in housing, the support base is provided with steam vent, and kuppe is also equipped with the support base, and the steam vent is located on the inside of the kuppe.The advantages that present invention has structure reliable, can effectively prevent from puncturing, and hot contaminated body cooling effect is preferable.
Description
Technical field
The present invention relates to high-tension power transmission and transformation equipment, more particularly to a kind of primary cut-out with gas cooling passage.
Background technology
In high voltage power transmission and transforming system, primary cut-out is the necessaries of transformer station, is mainly used as collecting, distribute and passing
Power transmission energy.Two arcing contacts of primary cut-out are separated from each other in the off state, if being drawn in the air chamber full of arc extinguishing gases
Go out electric arc, then the arc extinguishing gases being heated by the electric arc simultaneously can be from the narrow positions of spout by then blowing to electric arc and being extinguished simultaneously
Prevent from firing again, the hot contaminated body after arc extinguishing is escaped and enter from support base in primary cut-out housing.To ensure to use
Security in journey, high voltage short circuit device housing is in ground state, namely ground potential, and each equipment in housing is in high pressure shape
State, namely high potential, and the design of existing primary cut-out when examining in view of factors such as the mounting process of product, inside support base
Pathway structure designs fairly simple, after primary cut-out repeatedly cut-offs, is mixed with the hot contaminated body of metallic
Acting directly on after metal shell can cause to discharge, puncture, and larger potential safety hazard be present, also can not quickly be opened next time
It is disconnected.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies in the prior art, there is provided a kind of structure is reliable, can effectively prevent
The primary cut-out with gas cooling passage only punctured.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of primary cut-out with gas cooling passage, including housing and spout and support base in housing, institute
State support base and be provided with steam vent, kuppe is also equipped with the support base, the steam vent is located on the inside of the kuppe.
Further improvement as above-mentioned technical proposal：Shoulder hole is provided with the kuppe and upper end aperture is less than lower end
Aperture, the kuppe upper end are sheathed on the support base periphery, and the steam vent is located at the kuppe lower end inside, described
The diameter of kuppe from top to bottom gradually increases, by upper intrados and upper outer between the outer wall and inwall of kuppe upper end end
Cambered surface is smoothly connected, and the radius of the upper extrados is more than the radius of the upper intrados, the outer wall of kuppe lower end with
It is smoothly connected between inwall by lower intrados and lower extrados, the radius of the lower extrados is more than the half of the lower intrados
Footpath.
Further improvement as above-mentioned technical proposal：The support base upper end is also equipped with shielding cylinder, the steam vent
Located at the support base upper end, the support base lower end closed, the shielding cylinder is extended to below the steam vent.
Further improvement as above-mentioned technical proposal：Support base lower end both sides are symmetrically arranged with lower concave part.
Further improvement as above-mentioned technical proposal：The lower concave part includes the first circular arc close to support base center
Face and the second arc surface close to support base inwall, first arc surface is smoothly connected with second arc surface, described
The radius of first arc surface is more than the radius of second arc surface.
Further improvement as above-mentioned technical proposal：It is 1/3~2/3 high to be located at the support base for the shielding cylinder lower end
Between degree.
Further improvement as above-mentioned technical proposal：It is sequentially connected radome below the spout and is touched for installing arc
The contact base of head, the contact base are connected with the support base, and the contact base turns on the shielding cylinder gas circuit.
Further improvement as above-mentioned technical proposal：The radome upper end is sheathed on the spout periphery and upper end end
The downward turnup in portion, the radome lower end are taper and extended in the contact base.
Further improvement as above-mentioned technical proposal：Sealing is provided between the radome lower end and the contact base
Part.
Compared with prior art, the advantage of the invention is that：Height disclosed by the invention with gas cooling passage is broken
Road device, kuppe is installed on support base, kuppe is enclosed in steam vent periphery, after the arc extinguishing gases that spout sprays complete arc extinguishing
Enter as hot contaminated body in support base, discharged via steam vent, in the presence of kuppe, hot contaminated rate of flow of fluid
Reduce rapidly and change flow direction, will not directly impact housing, the breakdown channel of high low potential can be avoided to produce, while water conservancy diversion
Cover also adds somewhat to the circulation path of hot contaminated body, improve cooling effect, and it is next to be advantageous to breaker progress
Secondary quick-speed turning on-off.
Brief description of the drawings
Fig. 1 is the structural representation for the primary cut-out that the present invention has gas cooling passage.
Each label represents in figure：1st, housing；2nd, spout；3rd, support base；31st, steam vent；32nd, lower concave part；321st, the first circle
Cambered surface；322nd, the second arc surface；4th, kuppe；41st, shoulder hole；42nd, upper intrados；43rd, upper extrados；44th, lower intrados；
45th, lower extrados；5th, shielding cylinder；6th, radome；7th, arcing contact；8th, contact base；9th, seal.
Embodiment
The present invention is described in further detail below in conjunction with Figure of description and specific embodiment.
As shown in figure 1, the primary cut-out with gas cooling passage of the present embodiment, including housing 1 and located at shell
Spout 2 and support base 3 in body 1, support base 3 are provided with steam vent 31, kuppe 4, steam vent 31 are also equipped with support base 3
Positioned at the inner side of kuppe 4.
The present invention has the primary cut-out of gas cooling passage, and kuppe 4 is installed on support base 3, and kuppe 4 surrounds
In the periphery of steam vent 31, the arc extinguishing gases of the ejection of spout 2（As shown by arrows in FIG.）Enter after completing arc extinguishing as hot contaminated body
Enter in support base 3, discharged via steam vent 31, in the presence of kuppe 4, hot contaminated rate of flow of fluid is reduced and changed rapidly
Become flow direction, then flow downward into housing 1, will not directly impact housing 1, the breakdown channel of high low potential can be avoided
Produce, while kuppe 4 also adds somewhat to the circulation path of hot contaminated body, improve cooling effect, be advantageous to
Primary cut-out carries out quick-speed turning on-off next time.
As further preferred technical scheme, in the present embodiment, it is provided with shoulder hole 41 in kuppe 4 and upper end aperture is small
In lower end aperture, the upper end of kuppe 4 is sheathed on the periphery of support base 3, and is fixed using trip bolt, and steam vent 31, which is located at, leads
Stream 4 lower end insides of cover, the diameter of kuppe 4 from top to bottom gradually increases, namely the circular cone shape that kuppe 4 is generally hollow,
It is smoothly connected between the outer wall and inwall of the upper end end of kuppe 4 by upper intrados 42 and upper extrados 43, upper extrados 43
Radius be more than upper intrados 42 radius, between the outer wall and inwall of the lower end of kuppe 4 by lower intrados 44 and under
Extrados 45 is smoothly connected, and the radius of lower extrados 45 is more than the radius of lower intrados 44.Due between kuppe 4 and housing 1
With potential difference, and kuppe 4 compares support base 3 closer to housing 1, therefore is easier to cause punch through, if not led to newly-increased
The structure of stream cover 4 optimizes design, it is easy to causes electric field distortion, influences the dielectric field intensity distribution after cut-offfing.By repeatedly
Electric Field Simulation calculate, the kuppe 4 of said structure can meet that requirement, namely the kuppe 4 that the present embodiment increases newly will not cause
Electric field distortion, the distribution of the dielectric field intensity after cut-offfing is not interfered with.
Further, in the present embodiment, the upper end of support base 3 is also equipped with shielding cylinder 5, and steam vent 31 is located at support base 3
Upper end, the lower end closed of support base 3, shielding cylinder 5 extend to the lower section of steam vent 31.Hot contaminated body after arc extinguishing is via shielding cylinder 5
Flow downward, until changing flow direction behind impact support base 3 lower end, flow and discharged by the steam vent 31 of upper end then up, this
Sample one, the distance of the circulation of hot contaminated body can be greatly increased, there is more preferable cooling effect.Preferably, the upper end of support base 3
Step is set, at the step that the upper end of shielding cylinder 5 is arranged to T-type structure and is assemblied on support base 3, in contact base 8 and support base 3
After being connected as one by fastener, shielding cylinder 5 can reliably be clamped, it is simple in construction, reliable.
Further, in the present embodiment, lower concave part 32 is symmetrically arranged with left and right sides of the lower end of support base 3.Compared to plane
Structure, after thermal pollution gas impacts symmetrically arranged two lower concave part 32, will not directly it fight back（Or backflow）Into shielding
In cylinder 5, but flowed toward the inwall direction of support base 3 in outside, finally according to design path along support base 3 and shielding cylinder 5 it
Between gap flow up, finally discharged by steam vent 31.
Further, in the present embodiment, lower concave part 32 include close to the center of support base 3 the first arc surface 321 and
Close to the second arc surface 322 of the inwall of support base 3, the first arc surface 321 is smoothly connected with the second arc surface 322, the first circular arc
The radius in face 321 is more than the radius of the second arc surface 322.As shown in drawings, the lower concave part 32 of this kind of structure is more beneficial for making dirt
Dye hot gas is prevented from fighting back to greatest extent and entered in shielding cylinder 5 toward rolling up on both sides, preferably according to design path along support
Gap between seat 3 and shielding cylinder 5 flows up.Specifically, the radius of the first arc surface 321 is 53mm, the second arc surface 322
Radius be 40mm.
Further, the scope as shown by two dotted lines in accompanying drawing, in the present embodiment, the lower end of shielding cylinder 5 is positioned at branch
Between 1/3~2/3 height for supportting seat 3.If shielding cylinder 5 is too short, for extending the very limited apart from effect of gas circulation, if
Shielding cylinder 5 is long, then gas is easily fought back into shielding cylinder 5, can not smoothly be discharged according to design path.
As further preferred technical scheme, in the present embodiment, the lower section of spout 2 is sequentially connected radome 6 and for pacifying
The contact base 8 of arcing contact 7 is filled, contact base 8 is connected with support base 3, and contact base 8 turns on the gas circuit of shielding cylinder 5.Gas passes through successively
Spout 2, radome 6 and contact base 8 enter in shielding cylinder 5, then enter support base 3 by shielding cylinder 5.
Further, in the present embodiment, the upper end of radome 6 is sheathed on the downward turnup in the periphery of spout 2 and upper end end, screen
The lower end of cover 6 is covered for taper and is extended in contact base 8.Calculated by Electric Field Simulation repeatedly, the radome 6 of said structure will not
Cause electric field distortion, do not interfere with the distribution of the dielectric field intensity after cut-offfing, fracture Electric Field Distribution of two arcing contacts 7 in separation process
Also evenly.
Further, in the present embodiment, seal 9 is provided between the lower end of radome 6 and contact base 8.Pass through seal 9
Ensure the sealing between radome 6 and contact base 8, ensure that gas flows according to design path.
Although the present invention is disclosed above with preferred embodiment, but is not limited to the present invention.It is any to be familiar with ability
The technical staff in domain, in the case where not departing from technical solution of the present invention scope, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications, or is revised as the equivalent embodiment of equivalent variations.Therefore, it is every
Without departing from the content of technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments,
Equivalent variations and modification, it all should fall in the range of technical solution of the present invention protection.
Claims (9)
1. a kind of primary cut-out with gas cooling passage, including housing（1）And located at housing（1）Interior spout（2）
And support base（3）, the support base（3）It is provided with steam vent（31）, it is characterised in that：The support base（3）On be also equipped with
Kuppe（4）, the steam vent（31）Positioned at the kuppe（4）Inner side.
2. the primary cut-out according to claim 1 with gas cooling passage, it is characterised in that：The kuppe
（4）It is interior to be provided with shoulder hole（41）And upper end aperture is less than lower end aperture, the kuppe（4）Upper end is sheathed on the support base
（3）Periphery, the steam vent（31）Positioned at the kuppe（4）Lower end inside, the kuppe（4）Diameter from top to bottom by
It is cumulative to add, kuppe（4）Pass through upper intrados between the outer wall and inwall of upper end end（42）With upper extrados（43）Smooth company
Connect, the upper extrados（43）Radius be more than the upper intrados（42）Radius, kuppe（4）The outer wall of lower end with
Pass through lower intrados between inwall（44）With lower extrados（45）It is smoothly connected, the lower extrados（45）Radius be more than it is described
Lower intrados（44）Radius.
3. the primary cut-out according to claim 1 or 2 with gas cooling passage, it is characterised in that：The support
Seat（3）Upper end is also equipped with shielding cylinder（5）, the steam vent（31）Located at the support base（3）Upper end, the support base（3）
Lower end closed, the shielding cylinder（5）Extend to the steam vent（31）Lower section.
4. the primary cut-out according to claim 3 with gas cooling passage, it is characterised in that：The support base
（3）Lower end both sides are symmetrically arranged with lower concave part（32）.
5. the primary cut-out according to claim 4 with gas cooling passage, it is characterised in that：The lower concave part
（32）Including close to support base（3）First arc surface at center（321）And close to support base（3）Second arc surface of inwall
（322）, first arc surface（321）With second arc surface（322）It is smoothly connected, first arc surface（321）'s
Radius is more than second arc surface（322）Radius.
6. the primary cut-out according to claim 5 with gas cooling passage, it is characterised in that：The shielding cylinder
（5）Lower end is located at the support base（3）1/3~2/3 height between.
7. the primary cut-out according to claim 3 with gas cooling passage, it is characterised in that：The spout（2）
Lower section is sequentially connected radome（6）With for installing arcing contact（7）Contact base（8）, the contact base（8）With the support base
（3）It is connected, the contact base（8）With the shielding cylinder（5）Gas circuit turns on.
8. the primary cut-out according to claim 7 with gas cooling passage, it is characterised in that：The radome
（6）Upper end is sheathed on the spout（2）The downward turnup in periphery and upper end end, the radome（6）Lower end is taper and extended
To the contact base（8）It is interior.
9. the primary cut-out according to claim 8 with gas cooling passage, it is characterised in that：The radome
（6）Lower end and the contact base（8）Between be provided with seal（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710892609.8A CN107464708B (en) | 2017-09-27 | 2017-09-27 | High-voltage circuit breaker with gas cooling channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710892609.8A CN107464708B (en) | 2017-09-27 | 2017-09-27 | High-voltage circuit breaker with gas cooling channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107464708A true CN107464708A (en) | 2017-12-12 |
| CN107464708B CN107464708B (en) | 2021-06-18 |
Family
ID=60553863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710892609.8A Active CN107464708B (en) | 2017-09-27 | 2017-09-27 | High-voltage circuit breaker with gas cooling channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107464708B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4471187A (en) * | 1981-09-30 | 1984-09-11 | Sprecher & Schuh Ag | Gas-blast switch |
| US20070068904A1 (en) * | 2005-09-26 | 2007-03-29 | Abb Technology Ag | High-voltage circuit breaker with improved circuit breaker rating |
| WO2011067122A1 (en) * | 2009-12-04 | 2011-06-09 | Siemens Aktiengesellschaft | Circuit breaker arrangement |
| CN103828011A (en) * | 2011-09-28 | 2014-05-28 | 西门子公司 | Circuit breaker unit |
| WO2014187632A1 (en) * | 2013-05-24 | 2014-11-27 | Siemens Aktiengesellschaft | Circuit breaker gas channel and switching device having a circuit breaker gas channel |
| CN204102798U (en) * | 2014-08-29 | 2015-01-14 | 国家电网公司 | A kind of SF6 high-voltage breaker explosion chamber with contact shield cover |
| CN106030744A (en) * | 2013-12-23 | 2016-10-12 | Abb 技术有限公司 | Electrical switching device |
| CN106710960A (en) * | 2016-12-01 | 2017-05-24 | 上海思源高压开关有限公司 | Gas circuit breaker with reinforced insulation recovery function |
| CN207217344U (en) * | 2017-09-27 | 2018-04-10 | 湖南长高电气有限公司 | Primary cut-out with gas cooling passage |
-
2017
- 2017-09-27 CN CN201710892609.8A patent/CN107464708B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4471187A (en) * | 1981-09-30 | 1984-09-11 | Sprecher & Schuh Ag | Gas-blast switch |
| US20070068904A1 (en) * | 2005-09-26 | 2007-03-29 | Abb Technology Ag | High-voltage circuit breaker with improved circuit breaker rating |
| WO2011067122A1 (en) * | 2009-12-04 | 2011-06-09 | Siemens Aktiengesellschaft | Circuit breaker arrangement |
| CN102741962A (en) * | 2009-12-04 | 2012-10-17 | 西门子公司 | Circuit breaker arrangement |
| CN103828011A (en) * | 2011-09-28 | 2014-05-28 | 西门子公司 | Circuit breaker unit |
| WO2014187632A1 (en) * | 2013-05-24 | 2014-11-27 | Siemens Aktiengesellschaft | Circuit breaker gas channel and switching device having a circuit breaker gas channel |
| CN106030744A (en) * | 2013-12-23 | 2016-10-12 | Abb 技术有限公司 | Electrical switching device |
| CN204102798U (en) * | 2014-08-29 | 2015-01-14 | 国家电网公司 | A kind of SF6 high-voltage breaker explosion chamber with contact shield cover |
| CN106710960A (en) * | 2016-12-01 | 2017-05-24 | 上海思源高压开关有限公司 | Gas circuit breaker with reinforced insulation recovery function |
| CN207217344U (en) * | 2017-09-27 | 2018-04-10 | 湖南长高电气有限公司 | Primary cut-out with gas cooling passage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107464708B (en) | 2021-06-18 |
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