CN106300175A - Wall bushing radiator structure and use the switchgear of this structure - Google Patents

Wall bushing radiator structure and use the switchgear of this structure Download PDF

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Publication number
CN106300175A
CN106300175A CN201610918590.5A CN201610918590A CN106300175A CN 106300175 A CN106300175 A CN 106300175A CN 201610918590 A CN201610918590 A CN 201610918590A CN 106300175 A CN106300175 A CN 106300175A
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CN
China
Prior art keywords
insulator
heat
wall
conducting piece
wall bushing
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
Application number
CN201610918590.5A
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Chinese (zh)
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CN106300175B (en
Inventor
吴小钊
李俊豪
郑晓果
汤清双
王廷华
李猛
何战军
杨镇宁
张伟刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuji Delischer Electric Co ltd
State Grid Corp of China SGCC
Xuji Group Co Ltd
Original Assignee
XUCHANG XUJI DRIESCHER WEGBERG ELECTRIC CO Ltd
State Grid Corp of China SGCC
Xuji Group Co Ltd
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Application filed by XUCHANG XUJI DRIESCHER WEGBERG ELECTRIC CO Ltd, State Grid Corp of China SGCC, Xuji Group Co Ltd filed Critical XUCHANG XUJI DRIESCHER WEGBERG ELECTRIC CO Ltd
Priority to CN201610918590.5A priority Critical patent/CN106300175B/en
Publication of CN106300175A publication Critical patent/CN106300175A/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/22Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/03Cooling

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Insulators (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

The present invention relates to wall bushing radiator structure and use the switchgear of this structure, particularly Cubicle Gas-Insulated Switchgear and its gas tank bushing radiator structure.Wherein wall bushing radiator structure includes the insulator being fixed on electrical equipment sidewall and the center conductor being located in insulator, insulator be axially provided with heat-conducting piece between middle part and electrical equipment sidewall, the two ends of heat-conducting piece respectively with insulator and electrical equipment sidewall thermally coupled.Conductor can be passed to the heat of insulator and pass to electrical equipment sidewall by heat-conducting piece, electrical equipment sidewall is relied on to achieve heat radiation, and, insulation between center conductor and heat-conducting piece can be undertaken by insulator, insulating properties required low and is easily achieved, while ensureing radiating effect, solving existing radiator structure and insulating properties are required a high difficult problem, the structure simultaneously making electrical equipment is compacter, it is also possible to concede more space for inside electric appliance.

Description

Wall bushing radiator structure and use the switchgear of this structure
Technical field
The present invention relates to wall bushing radiator structure and use the switchgear of this structure, particularly gas-insulated metal envelope Close switchgear and its gas tank bushing radiator structure.
Background technology
Cubicle Gas-Insulated Switchgear possesses compact, compact dimensions, non-maintaining, highly reliable, sealed insulation Functional, not by features such as outside environmental elements are affected, thus obtain in electric power system power distribution and high ferro power distribution station construction Widely apply.But the primary conductive major loop of Cubicle Gas-Insulated Switchgear is sealed in a gas tank closed, main Galvanic circle heating be difficult to be dispersed in ambient atmosphere, when electric current rise to 2500A and higher time, eddy-current heating aggravate, conduction Loop heating makes to switch in-cabinet temperature plus eddy-current heating and drastically raises, and then makes insulant aging reduction insulating properties, The general safety affecting switchgear runs, how by the major loop in big current gas insulated metal closed switch equipment and whirlpool The heat of miscarriage life is the most efficiently dispersed in the outer air of gas tank the difficult problem becoming urgently to be resolved hurrily.
Authorization Notice No. be CN 201514824 U patent document in disclose a kind of bushing and include this sleeve pipe High pressure equipment, wherein bushing is a kind of wall bushing, is fixed on electrical equipment sidewall by flange during use, and And make insulation crust pass through flange and electrical equipment sidewall common ground.Wall bushing includes the hollow insulator as insulator Shell, is provided with the conductor that power supply stream passes through, forms center conductor in hollow insulator shell, the insulation bodily form is stretched out in the end of conductor Becoming extended end portion, extended end portion is provided with radiator, and radiator includes, by the body having made by the material of high-termal conductivity, being formed Heat abstractor.In order to strengthen radiating effect, it is also possible to arrange corona shield on the conductor of wall bushing, and corona shield with Heat pipe is set between radiator and forms thermally coupled.Above-mentioned conductor extends through insulator, radiator and corona shield, thus hot Amount can be delivered to insulator, radiator and corona shield from conductor and be delivered to surrounding, forms wall bushing heat radiation knot Structure.
But, existing above-mentioned wall bushing radiator structure only enhances the heat radiation of conductor self, for wall-through set For pipe two ends are required to the electrical equipment closed, heat remains a need for portion's space divergence further out, and integral heat sink effect is not Preferable.It addition, said structure needs to make conductor, insulator, radiator and corona shield link together, due to radiator with And corona shield radial dimension is bigger, it is therefore desirable to take the biggest space, and for high pressure equipment, insulating properties can be given New challenge can be brought.
Summary of the invention
It is an object of the invention to provide a kind of wall bushing radiator structure and use the switchgear of this structure, dissipating in guarantee Solve existing radiator structure while thermal effect and insulating properties are required high problem.
For achieving the above object, the present invention the technical scheme is that wall bushing radiator structure, including being fixed on electricity Insulator on gas equipment sidewall and the center conductor being located in insulator, the axially middle part of insulator and electrical equipment sidewall Between be provided with heat-conducting piece, the two ends of heat-conducting piece respectively with insulator and electrical equipment sidewall thermally coupled.
Further:
Described heat-conducting piece includes the conductive flange arranged on insulator and is connected between conductive flange and electrical equipment sidewall Thermally conductive interface.
Described conductive flange is embedding on insulator near the side of center conductor, and conductive flange is near center conductor Side is provided with along wall bushing axially extended shielding flange.
Described electrical equipment sidewall includes the fixation wall fixing for wall bushing, also includes be connected vertical with described fixation wall Heat radiation wall, described heat-conducting piece radially extending and being connected on described heat radiation wall along insulator.
The lateral surface of described heat radiation wall is provided with radiator.
Switchgear, including the air chamber closed and the wall bushing radiator structure being arranged on air chamber, wall bushing dispels the heat Structure includes the insulator being fixed on gas chamber sidewall and the center conductor being located in insulator, it is characterised in that: insulator Be axially provided with heat-conducting piece between middle part and gas chamber sidewall, the two ends of heat-conducting piece respectively with insulator and gas chamber sidewall thermally coupled, Gas chamber sidewall and heat-conducting piece equipotential link.
Further:
Described heat-conducting piece includes the conductive flange arranged on insulator and leading of being connected between conductive flange and gas chamber sidewall Thermally coupled body.
Described conductive flange is embedding on insulator near the side of center conductor, and conductive flange is near center conductor Side is provided with along wall bushing axially extended shielding flange.
Described gas chamber sidewall includes the fixation wall fixing for wall bushing, also includes dissipate connected vertically with described fixation wall Hot wall, described heat-conducting piece radially extending and being connected on described heat radiation wall along insulator.
The lateral surface of described heat radiation wall is provided with radiator.
Beneficial effect: the present invention uses technique scheme, axially setting between middle part and electrical equipment sidewall of insulator Have heat-conducting piece, the two ends of heat-conducting piece respectively with insulator and electrical equipment sidewall thermally coupled, it is possible to conductor is passed to insulator Heat pass to electrical equipment sidewall, rely on electrical equipment sidewall to achieve heat radiation, and, between center conductor and heat-conducting piece Insulation can be undertaken by insulator, insulating properties are required low and be easily achieved, and compared with prior art, it is not necessary at electricity Gas device interior arranges radiator or corona shield, while ensureing radiating effect, solves existing radiator structure to absolutely The difficult problem that edge performance requirement is high, the structure simultaneously making electrical equipment is compacter, it is also possible to concede more for inside electric appliance Many spaces.
Further, described heat-conducting piece includes the conductive flange arranged on insulator and is connected to conductive flange with electric Thermally conductive interface between equipment sidewall, conductive flange is arranged around insulator, it is possible to make the heat on insulator pass through heat conduction Flange is concentrated and is conducted to thermally conductive interface, it is to avoid thermally conductive interface is directly put with insulator and is connected and cannot dispel the heat rapidly, it is possible to Strengthen radiating effect.
Further, described conductive flange is embedding on insulator near the side of center conductor, and conductive flange is close The side of center conductor is provided with along wall bushing axially extended shielding flange, and center conductor can be played shielding by shielding flange Effect, improves insulating properties further.
Further, described electrical equipment sidewall includes the fixation wall fixing for wall bushing, also includes fixing with described Wall heat radiation connected vertically wall, described heat-conducting piece radially extends and is connected on described heat radiation wall along insulator, it is possible to depend on By heat radiation wall increasing heat radiation area so that heat can be quickly to exterior conductive.
Further, the lateral surface of described heat radiation wall is provided with radiator, radiator can be fin, radiator fan, The forms such as water-cooled, cold, the air cooling of oil, thus play the radiating effect of optimum, quickly it is transmitted to set by the heat of center conductor Standby outside.
Accompanying drawing explanation
Fig. 1 is the perspective view of an embodiment of wall bushing radiator structure in the present invention;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the internal structure schematic diagram of wall bushing in Fig. 1.
Corresponding entitled of each reference in figure: 10-gas tank, 11-diapire, 12-dispels the heat wall, 121-heat sink, 122- Fin radiator, 20-wall bushing, 21-insulator, 22-center conductor, 30-conductive flange, 31-shields flange, 40-heat pipe.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiments of the present invention are described further.
The present invention implements such as shown in Fig. 1 ~ Fig. 3 for one of wall bushing radiator structure, is a kind of the most electric for middle pressure The wall bushing radiator structure of the wall bushing system of the high capacity of heat transmission of stream switchgear, including gas tank 10, the end of gas tank 10 Wall 11 is provided with wall bushing perforation, and wall bushing 20 is fixed in wall bushing perforation, and diapire 11 is formed for wall bushing 20 Fixing fixation wall.Wall bushing 20 includes that the insulator 21 that poured with epoxy resin is formed, corresponding center conductor 22 are cast in In insulator 21.
Heat-conducting piece, electrical equipment sidewall and heat-conducting piece etc. it is provided with between axial middle part and the electrical equipment sidewall of insulator 21 Current potential connects.Middle part in the application refers to the middle part of insulator axial dimension, can be center position, it is also possible to be The position of center position is slightly offset from Zhou Xiang.This heat-conducting piece includes conductive flange 30 and 40 two parts of heat pipe, conductive flange 30 Employing metal material is made, preferably the preferable material of heat conductivility, such as copper, aluminum etc..Heat pipe 40 is prior art, including metal Body, it is possible to be electrically connected to form isoelectric level thermally coupled with conductive flange 30.Conductive flange 30 has for supporting to gas tank 10 Diapire 11 on axially support end face, during assembling, the end face that axially supports of conductive flange 30 is supported on the diapire 11 of gas tank 10 On, while playing fixation, it is possible to form isoelectric level with the diapire 11 of gas tank 10, and can pass to the diapire 11 of gas tank 10 Heat conduction amount, plays more preferable thermolysis.
Gas tank 10 also includes heat radiation wall 12 connected vertically with diapire 11, and this heat radiation wall 12 includes heat sink 121 and arranges Fin radiator 122 on heat sink 121 lateral surface, heat sink 121 is sealed by other sidewalls of sealing ring with gas tank 10, Ensureing air-tightness, radiator covers whole lateral surface of heat sink 121, reaches higher radiating efficiency.Heat pipe 40 is along insulation Body 21 radially extend and be connected between heat sink 121 and conductive flange 30, formed thermally conductive interface.
In order to improve insulating properties, conductive flange 30 is poured into a mould when casting insulated body 21 near the side of center conductor 22 absolutely On edge body 21, form embedded structure, and conductive flange 30 is provided with along wall bushing 20 axial near the side of center conductor 22 The shielding flange 31 extended, in terms of vertical section, shielding flange 31 forms T-shaped structure with the main body of conductive flange 30.Wherein shield The corner angle of flange 31 are preferably made rounding and are processed.
During use, the heat on center conductor 22 is first delivered on insulator 21, then is pooled in conductive flange 30, and then It is delivered on the heat radiation wall 12 of gas tank 10 through heat pipe 40, is dispersed into the environment outside gas tank 10 eventually through fin radiator 122 In, it is achieved good radiating effect.
In the above-described embodiments, heat-conducting piece includes conductive flange 30 and have employed the thermally conductive interface of heat pipe 40, and Thermally conductive interface is provided with one.In other embodiments of the invention, heat-conducting piece can also only be formed by thermally conductive interface, in order to Improving radiating effect, thermally conductive interface can arrange more than one piece, or be provided with ring body on insulator 21 and collect heat, then by relatively Few thermally conductive interface realizes conduction of heat.It addition, in other embodiments, thermally conductive interface can also be its of good heat conductivity He arranges at form, such as copper bar, aluminum.Furthermore, in the above-described embodiments, wall bushing 20 realizes fixing by conductive flange 30, In other embodiments, conductive flange 30 can also be only used as conductive structure, and the fixing of wall bushing 20 can pass through its other party Formula realizes, and arranges mounting flange the most again.
One embodiment of breaker in middle equipment of the present invention include close gas tank 10 and gas tank 10 combination arrange other every Room, gas tank 10 is provided with wall bushing radiator structure, the wherein wall bushing in wall bushing radiator structure i.e. above-described embodiment Radiator structure, here is omitted.

Claims (10)

1. wall bushing radiator structure, including the insulator being fixed on electrical equipment sidewall and the center being located in insulator Conductor, it is characterised in that: being provided with heat-conducting piece between axial middle part and the electrical equipment sidewall of insulator, the two ends of heat-conducting piece are respectively With insulator and electrical equipment sidewall thermally coupled.
Wall bushing radiator structure the most according to claim 1, it is characterised in that: described heat-conducting piece includes being arranged on insulation Conductive flange on body and the thermally conductive interface being connected between conductive flange and electrical equipment sidewall.
Wall bushing radiator structure the most according to claim 2, it is characterised in that: described conductive flange is near center conductor Side embedding on insulator, and conductive flange is provided with along the axially extended shielding of wall bushing near the side of center conductor Flange.
4. according to the wall bushing radiator structure described in claim 1 or 2 or 3, it is characterised in that: described electrical equipment sidewall bag Including the fixation wall fixing for wall bushing, also include heat radiation wall connected vertically with described fixation wall, described heat-conducting piece is along absolutely The radially extending and be connected on described heat radiation wall of edge body.
Wall bushing radiator structure the most according to claim 4, it is characterised in that: the lateral surface of described heat radiation wall is provided with Radiator.
6. switchgear, including the air chamber closed and the wall bushing radiator structure being arranged on air chamber, wall bushing heat radiation knot Structure includes the insulator being fixed on gas chamber sidewall and the center conductor being located in insulator, it is characterised in that: insulator Axially be provided with heat-conducting piece between middle part and gas chamber sidewall, the two ends of heat-conducting piece respectively with insulator and gas chamber sidewall thermally coupled, gas Room sidewall and heat-conducting piece equipotential link.
Switchgear the most according to claim 6, it is characterised in that: described heat-conducting piece includes arranging leading on insulator Full-boiled process orchid and the thermally conductive interface being connected between conductive flange and gas chamber sidewall.
Switchgear the most according to claim 7, it is characterised in that: described conductive flange is embedding near the side of center conductor On insulator, and conductive flange is provided with near the side of center conductor along wall bushing axially extended shielding flange.
9. according to the switchgear described in claim 6 or 7 or 8, it is characterised in that: described gas chamber sidewall includes for wall bushing Fixing fixation wall, also includes heat radiation wall connected vertically with described fixation wall, and described heat-conducting piece prolongs along the radial direction of insulator Stretch and be connected on described heat radiation wall.
Switchgear the most according to claim 9, it is characterised in that: the lateral surface of described heat radiation wall is provided with radiator.
CN201610918590.5A 2016-10-21 2016-10-21 Wall bushing radiator structure and the switchgear for using the structure Active CN106300175B (en)

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CN201610918590.5A CN106300175B (en) 2016-10-21 2016-10-21 Wall bushing radiator structure and the switchgear for using the structure

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108923303A (en) * 2018-06-22 2018-11-30 河南森源电气股份有限公司 Gas-filling cabinet
CN110401133A (en) * 2019-08-26 2019-11-01 吉林省金冠电气股份有限公司 A kind of gas-insulated high-voltage switchgear assembly gas compensation and thermoregulating system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA974323A (en) * 1972-09-05 1975-09-09 General Electric Company Means for reducing eddy current heating of a tank in electric apparatus
CN202889857U (en) * 2012-09-05 2013-04-17 特能传热科技(中山)有限公司 Heat conducting member
CN204376264U (en) * 2014-12-30 2015-06-03 西门子公司 A kind of switch cubicle and heat abstractor thereof
TWI514706B (en) * 2013-08-09 2015-12-21
CN105846374A (en) * 2016-05-05 2016-08-10 成都君禾天成科技有限公司 Wall bushing with high dustproof capability
CN206135343U (en) * 2016-10-21 2017-04-26 许继集团有限公司 Wear wall sleeve pipe heat radiation structure and use switchgear of this structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA974323A (en) * 1972-09-05 1975-09-09 General Electric Company Means for reducing eddy current heating of a tank in electric apparatus
CN202889857U (en) * 2012-09-05 2013-04-17 特能传热科技(中山)有限公司 Heat conducting member
TWI514706B (en) * 2013-08-09 2015-12-21
CN204376264U (en) * 2014-12-30 2015-06-03 西门子公司 A kind of switch cubicle and heat abstractor thereof
CN105846374A (en) * 2016-05-05 2016-08-10 成都君禾天成科技有限公司 Wall bushing with high dustproof capability
CN206135343U (en) * 2016-10-21 2017-04-26 许继集团有限公司 Wear wall sleeve pipe heat radiation structure and use switchgear of this structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108923303A (en) * 2018-06-22 2018-11-30 河南森源电气股份有限公司 Gas-filling cabinet
CN110401133A (en) * 2019-08-26 2019-11-01 吉林省金冠电气股份有限公司 A kind of gas-insulated high-voltage switchgear assembly gas compensation and thermoregulating system
CN110401133B (en) * 2019-08-26 2024-01-30 吉林省金冠电气股份有限公司 Gas compensation and temperature adjustment system for gas-insulated high-voltage switch equipment

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Address after: No. 1298 Xuchang City, Henan province 461000 XJ Avenue

Patentee after: XJ Group Corp.

Patentee after: Xuji delischer Electric Co.,Ltd.

Patentee after: STATE GRID CORPORATION OF CHINA

Address before: No. 1298 Xuchang City, Henan province 461000 XJ Avenue

Patentee before: XJ Group Corp.

Patentee before: XUCHANG XUJI DRIESCHER WEGBERG ELECTRIC Co.,Ltd.

Patentee before: State Grid Corporation of China

CP01 Change in the name or title of a patent holder