CN203983790U - A kind of heat abstractor of solid-state insulated switchgear - Google Patents
A kind of heat abstractor of solid-state insulated switchgear Download PDFInfo
- Publication number
- CN203983790U CN203983790U CN201420281129.XU CN201420281129U CN203983790U CN 203983790 U CN203983790 U CN 203983790U CN 201420281129 U CN201420281129 U CN 201420281129U CN 203983790 U CN203983790 U CN 203983790U
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- CN
- China
- Prior art keywords
- solid
- regular hexagon
- heat
- insulated switchgear
- honeycomb radiator
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of heat abstractor of solid-state insulated switchgear, the heat abstractor of solid-state insulated switchgear, comprise Primary Conductor, Primary Conductor is coated with solid insulating layer, solid insulating layer is coated with regular hexagon honeycomb radiator, the solid insulating layer of regular hexagon honeycomb radiator upper and lower side is closely set with grading ring outward, grading ring and regular hexagon honeycomb radiator close contact, heat is delivered to solid insulating layer by the heat producing when Primary Conductor in solid insulation equipment is worked, heat in solid insulating layer conducts through heat, thermal radiation, thermal convection is gone out dissipation of heat from regular hexagon honeycomb radiator and grading ring, reduce the temperature rise of solid insulation equipment, improve the rated current of solid insulation equipment, meet the requirement of power industry high-current equipment.
Description
technical field:
The utility model relates to high voltage switchgear field, relates in particular to a kind of heat abstractor of solid-state insulated switchgear.
background technology:
In high voltage switchgear field, solid insulation is following developing direction.What the utility model was related is the heat dissipation problem of solid insulation equipment.In High-Voltage Electrical Appliances, two the most thorny problems, one is Insulation Problems, one is heating problem.Because solid insulation has reduced the size of total, it is very compact that the connection between conductor becomes, and distance is also very short, and conductor is enclosed in solid insulation inside, and heat radiation difficulty has seriously restricted the current-carrying level of solid insulation.
In 7.2kV～40.5kV high pressure field, in recent years, famous major company had all carried out the research and development of solid-state insulated switchgear both at home and abroad, and what have the meaning of representing most is the up-to-date middle pressure solid-state insulated switchgear (SIS) of developing of Toshiba Corp.Domestic also have famous major company of several families to start the exploratory development of intelligent environment protection solid insulated switching installation.
The conductor of solid-state insulated switchgear is enclosed in solid insulation inside, heat radiation difficulty, seriously restrict the current-carrying level of solid insulation, and existing solid insulation heat radiation or traditional direct air heat radiation, the 10kV product of world lead level at present, maximum rated current can only reach 1200A, can not meet from far away the requirement of power industry.
Solid insulation technology: be used for vacuum interrupter (seeing accompanying drawing 1) as example taking the different insulating barrier of multilayer dielectric constant, expose the main circuit conductor end at vacuum interrupter 16 two ends, first with molded first insulating barrier 17 that arranges of insulating material of epoxy resin and so on, then on the surface of the first insulating barrier 17, carry out as blasting treatment, improve after zygosity, with molded second insulating barrier 18 that arranges of insulating material of epoxy resin and so on.The ground plane 19 that setting example forms as the conductive coating paint of spraying carbon coating and so on the shell of the second insulating barrier 18.
The conductor of visible switchgear is enclosed in solid insulation inside, and heat radiation is difficult, has seriously restricted the current-carrying level of solid insulation, and the heat radiation of existing solid insulation or traditional direct air heat radiation.
utility model content:
In order to make up prior art problem, the purpose of this utility model is to provide a kind of heat abstractor of solid-state insulated switchgear, by the radiator structure of reasonable novelty, coordinate solid insulation technology, by heat conduction, thermal radiation, thermal convection technology, dissipation of heat is gone out, reduce the temperature rise of solid insulation equipment, the rated current of raising equipment, meets the requirement of power industry high-current equipment.
The technical solution of the utility model is as follows:
The heat abstractor of solid-state insulated switchgear, it is characterized in that: comprise Primary Conductor, described Primary Conductor is coated with solid insulating layer, solid insulating layer is coated with regular hexagon honeycomb radiator, the solid insulating layer of regular hexagon honeycomb radiator upper and lower side is closely set with grading ring outward, grading ring and regular hexagon honeycomb radiator close contact.
The heat abstractor of described solid-state insulated switchgear, it is characterized in that: the becket that described grading ring adopts metal heat-conducting material to make, hexagon honeycomb radiator also adopts metal heat-conducting material to make, becket and hexagon honeycomb radiator contact-making surface are plane, the equal arc transition of its outer wall and centre bore two ends.
The heat abstractor of described solid-state insulated switchgear, it is characterized in that: described regular hexagon honeycomb radiator constitutes cylinder-shaped by several regular hexagon cellular units, regular hexagon cellular unit cross section is orthohexagonal cylindrical barrel body, and regular hexagon cellular unit axis direction is vertical towards rectification template honeycomb radiator axis direction.
The heat abstractor of described solid-state insulated switchgear, is characterized in that: the height of described regular hexagon honeycomb briquet-bulk hot cell and the regular hexagon circumscribed circle diameter ratio in its cross section are generally 0.5 ~ 1.
The heat abstractor of described solid-state insulated switchgear, is characterized in that: when described regular hexagon honeycomb radiator is applied in high-current equipment, also can be provided with and water conservancy diversion wind groove spaced apart on outer wall.
The utility model has the advantages that:
The utility model, by the radiator structure of hexagon void column nest shape structure, coordinates solid insulation technology, by heat conduction, thermal radiation, thermal convection technology, dissipation of heat is gone out, reduce the temperature rise of solid insulation equipment, improve the rated current of equipment, meet the requirement of power industry high-current equipment.
brief description of the drawings:
Fig. 1 is the structural representation of vacuum interrupter.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is large electric current structural representation of the present utility model.
embodiment:
Referring to accompanying drawing:
The heat abstractor of solid-state insulated switchgear, comprise Primary Conductor 1, Primary Conductor 1 is coated with solid insulating layer 2, solid insulating layer 2 is coated with regular hexagon honeycomb radiator 4, the outer grading ring 3 that is closely set with of solid insulating layer 2 of regular hexagon honeycomb radiator 4 upper and lower sides, grading ring 3 and regular hexagon honeycomb radiator 4 close contacts.
The becket that grading ring 3 adopts metal heat-conducting material to make, becket and hexagon honeycomb radiator contact-making surface are plane, the equal arc transition of its outer wall and centre bore two ends.
Regular hexagon honeycomb radiator 4 constitutes cylinder-shaped by several regular hexagon cellular units, and regular hexagon cellular unit cross section is orthohexagonal cylindrical barrel body, and regular hexagon cellular unit axis direction is vertical towards rectification template honeycomb radiator axis direction.
The regular hexagon circumscribed circle diameter ratio in the height of regular hexagon honeycomb briquet-bulk hot cell and its cross section is generally 0.5 ~ 1.
When regular hexagon honeycomb radiator is applied in high-current equipment, on outer wall, also can be provided with and water conservancy diversion wind groove 5 spaced apart.
Critical piece is analyzed:
1, grading ring: in High-Voltage Electrical Appliances technology, insulation is an important index, allly can must round and smoothly excessively not allow wedge angle sudden change etc. by conductive component, affect Electric Field Distribution, and point discharge, causing insulation decline.Therefore, regular hexagon honeycomb radiator tightly put grading ring, improve Electric Field Distribution, strengthen product insulation level.
2, regular hexagon honeycomb radiator: increasing area of dissipation the most common is also the most basic mode, in limited space, area of dissipation can not unconfinedly increase, and in the time convection heat dissipation structure is set is subject to spatial limitation, conduction becomes the major measure of efficiently radiates heat.Design effective conductive structure, increase area of dissipation so that heat energy is passed enough fast, then coordinate the heat dissipation technology such as radiation, convection current to realize the dissipation of heat.Honeycomb has been subject to attention because of its good thermal diffusivity.Reasonably cellular-type and honeycomb are arranged, and total heat exchange amount is maximized, and between the heat conduction of honeycomb side wall surface and honeycomb inner surface, radiation heat transfer is the major way that in metal beehive, heat transmits.
3,, for the large electric current that exceedes 2000A, it is far from being enough only adopting above-mentioned heat conduction and thermal radiation mode, must coordinate ultromotivity thermal convection to carry out enhance heat.For large electric current, radiator adopts the large electric current structural representation in accompanying drawing 3, spreader surface water conservancy diversion wind groove 5, and the width N of water conservancy diversion wind groove is subject to the impact on Electric Field Distribution in accompanying drawing 4 equally.In conjunction with the design feature of regular hexagon honeycomb radiator, consider thermal natural convection usefulness, the angle α angle of the circumference of water conservancy diversion wind groove symmetrical center line and cross section is 60 degree.2000A-2500A offers 2 road grooves, and 3000A offers 4 road grooves, and 4000A offers 6 road grooves.The number of more than slotting is recommending data, when practical application in conjunction with actual adjustment such as electric pressures.
Claims (5)
1. the heat abstractor of a solid-state insulated switchgear, it is characterized in that: comprise Primary Conductor, described Primary Conductor is coated with solid insulating layer, solid insulating layer is coated with regular hexagon honeycomb radiator, the solid insulating layer of regular hexagon honeycomb radiator upper and lower side is closely set with grading ring outward, grading ring and regular hexagon honeycomb radiator close contact.
2. the heat abstractor of solid-state insulated switchgear according to claim 1, it is characterized in that: the becket that described grading ring adopts metal heat-conducting material to make, hexagon honeycomb radiator also adopts metal heat-conducting material to make, becket and hexagon honeycomb radiator contact-making surface are plane, the equal arc transition of its outer wall and centre bore two ends.
3. the heat abstractor of solid-state insulated switchgear according to claim 1, it is characterized in that: described regular hexagon honeycomb radiator constitutes cylinder-shaped by several regular hexagon cellular units, regular hexagon cellular unit cross section is orthohexagonal cylindrical barrel body, and regular hexagon cellular unit axis direction is vertical towards rectification template honeycomb radiator axis direction.
4. the heat abstractor of solid-state insulated switchgear according to claim 3, is characterized in that: the height of described regular hexagon honeycomb briquet-bulk hot cell and the regular hexagon circumscribed circle diameter ratio in its cross section are generally 0.5 ~ 1.
5. the heat abstractor of solid-state insulated switchgear according to claim 1, is characterized in that: when described regular hexagon honeycomb radiator is applied in high-current equipment, also can be provided with and water conservancy diversion wind groove spaced apart on outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281129.XU CN203983790U (en) | 2014-05-27 | 2014-05-27 | A kind of heat abstractor of solid-state insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281129.XU CN203983790U (en) | 2014-05-27 | 2014-05-27 | A kind of heat abstractor of solid-state insulated switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203983790U true CN203983790U (en) | 2014-12-03 |
Family
ID=51981206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420281129.XU Expired - Fee Related CN203983790U (en) | 2014-05-27 | 2014-05-27 | A kind of heat abstractor of solid-state insulated switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203983790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037627A (en) * | 2014-05-27 | 2014-09-10 | 安徽明远电力设备制造有限公司 | Cooling device of solid insulated switch equipment and cooling method thereof |
-
2014
- 2014-05-27 CN CN201420281129.XU patent/CN203983790U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037627A (en) * | 2014-05-27 | 2014-09-10 | 安徽明远电力设备制造有限公司 | Cooling device of solid insulated switch equipment and cooling method thereof |
| CN104037627B (en) * | 2014-05-27 | 2016-04-27 | 安徽明远电力设备制造有限公司 | A kind of heat abstractor of solid-state insulated switchgear and heat dissipating method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20200527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |