CN105119215A - Air cooling device for high pressure wall bushing - Google Patents
Air cooling device for high pressure wall bushing Download PDFInfo
- Publication number
- CN105119215A CN105119215A CN201510537576.6A CN201510537576A CN105119215A CN 105119215 A CN105119215 A CN 105119215A CN 201510537576 A CN201510537576 A CN 201510537576A CN 105119215 A CN105119215 A CN 105119215A
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- China
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- air
- porcelain
- wall bushing
- bushing
- cooling
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Abstract
The invention discloses an air cooling device for a high pressure wall bushing, comprising a conducting rod, a porcelain sleeve, an insulation layer, a connection terminal and a flange. The conducting rod is put inside the porcelain sleeve from one end of the wall bushing after connecting to the connection terminal in series; the insulation layer wraps the conducting rod; the flange is fixed in the middle of the porcelain sleeve; an inner cavity channel is formed between the insulation layer and the porcelain sleeve for cooling aie to circulate; a cooling air inlet port and a cooling air outlet port are arranged on two ends of the porcelain sleeve; the air inlet port is positioned on the bottom of the porcelain sleeve; the air outlet port is positioned on the top of the porcelain sleeve; creeping-increasing umbrella skirts are distributed on the outer wall of the porcelain sleeve; the insulation material of the insulation layer is epoxy resin; and a cooling air temperature reduction channel is positioned inside the high pressure wall bushing to take away the heat of the heat conducting pipe, which prevents the internal temperature of the wall bushing pipe from being high and bringing fault to line operation.
Description
Technical field
The invention belongs to technical field of electric equipment, relate to a kind of wall bushing, be specifically related to a kind of high-voltage wall bushing air cooling-down device.
Background technology
Wall bushing is the important coupling part between transformer and distribution line, connects main transformer low-pressure side lead-out wire and switch gear room.When electric current flows through main busbar, a magnetic field can be excited being fixed on the wall bushing plate on body of wall, and produce eddy current loss.Eddy current loss can increase along with bus operating current and sharply increase, and wall bushing plate is generated heat.During summer peak meeting, this problem is particularly outstanding, has a strong impact on the service behaviour of the ampacity of bus and electric component, the normal work of wall bushing body, the safe operation of whole piece circuit and reliable power supply, even jeopardizes personal safety.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of high-voltage wall bushing air cooling-down device, by arranging cooling-air cooling passage in high-voltage wall bushing inside, the heat of heat pipe is taken out of, avoid the temperature of wall bushing inside too high, run to circuit and bring fault.
Technical scheme of the present invention is: a kind of high-voltage wall bushing air cooling-down device, described wall bushing comprises conducting rod, porcelain overcoat, insulating barrier, binding post and flange, porcelain jacket internal is put into from one end of wall bushing after conducting rod and binding post are connected in series, insulating barrier is coated with conducting rod, flange is fixed in the middle part of porcelain overcoat, the bore passages that cooling-air circulates is provided with between described insulating barrier and porcelain overcoat, the air inlet of cooling-air and gas outlet are located at the two ends of porcelain bushing respectively, air inlet is located at the bottom of porcelain bushing, gas outlet is located at the top of porcelain bushing.Described porcelain bushing outer wall is distributed with increasing and climbs full skirt.The insulating material employing epoxy resin that described insulating barrier is used.Supporting bracket is provided with in described air inner chamber, conducting rod is fixed in the middle part of porcelain overcoat by supporting bracket, and described supporting bracket plane is vertical with conducting rod, and supporting bracket is provided with the circulation passage of cooling-air, supporting bracket adopts Heat Conduction Material, and Heat Conduction Material is heat conductive silica gel or heat-conducting silicone grease.Described heat sink comprises cold air generator, thermoregulator, cold air feed tube and freeze drier, knob on thermoregulator can regulate the air outlet temperature of cold air generator, cold air generator is connected to freeze drier by cold air feed tube, and freeze drier is connected to the air inlet of porcelain bushing cavity.Described heat sink comprises air compressor, gas tank and vortex tube, and described air compressor connects gas tank by transfer pipeline, and gas tank connects vortex tube, and described vortex tube is connected to the air inlet of porcelain bushing cavity, and described vortex tube is provided with adjuster valve.Described vortex tube is made up of the pipe of a both ends open and nozzle, minor air cell, separation orifice, adjuster valve, pipe two ends are respectively cold air outlet side and hot gas outlet side, outlet side is provided with adjuster valve to hot gas, minor air cell is provided with separation orifice near adjuster valve side, minor air cell connects cold air outlet side, hot gas outlet side and compressed air inlet respectively, nozzle is arranged in compressed air inlet, and cold air outlet side is connected to the air inlet of porcelain bushing cavity.What described transfer pipeline adopted is that 316L stainless steel is made.
The present invention has following good effect: by arranging cooling-air cooling passage in high-voltage wall bushing inside, taken out of by the heat of heat pipe, avoid the temperature of wall bushing inside too high, runs bring fault to circuit.
Accompanying drawing explanation
Fig. 1 is specific embodiment of the invention wall bushing structure chart.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is as the effect of the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part and operation principle, manufacturing process and operation using method etc., be described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme.
As shown in Figure 1, a kind of high-voltage wall bushing, include conducting rod, conducting rod is coated with porcelain bushing, porcelain bushing outer wall is distributed with increasing and climbs full skirt, conducting rod two ends are all provided with binding post, in the middle part of porcelain bushing, adpting flange is installed, also insulating barrier is provided with between conducting rod and porcelain bushing, insulating barrier is coated with conducting rod, it is put into from one end of wall bushing inner after conducting rod and binding post are connected in series, the other end that the part of binding post runs through wall bushing is used as to be connected with high voltage electric field to use, with insulating material, one end embedding of conducting rod and binding post is fixed in wall bushing again, thus reach the object of insulated enclosure, the insulating material employing epoxy resin that insulating barrier is used.
A cavity structure is also provided with between insulating barrier and porcelain bushing, as the circulation passage of cooling-air, the air inlet of cooling-air and gas outlet are located at the two ends of porcelain bushing respectively, concrete, air inlet is located at the bottom of porcelain bushing, and gas outlet is located at the top of porcelain bushing, owing to can float after gas heating, therefore, air inlet is located at bottom, can cooling performance be improved.
Inner chamber is provided with supporting bracket, conducting rod is fixed on cavity central authorities by supporting bracket, supporting bracket plane is vertical with conducting rod, supporting bracket adopts Heat Conduction Material, by the heat conduction of insulating barrier in inner chamber, concrete, Heat Conduction Material is heat conductive silica gel or heat-conducting silicone grease, thus improve the speed of heat by conduction, reach good heat-conducting effect.In addition, for longer wall bushing, supporting bracket has a supporting role to conducting rod, avoids conducting rod long formation degree of disturbing, affects conducting rod performance.Concrete, supporting bracket is provided with the passage of gas circulation, and the cavity of porcelain bushing inside is separated into multiple chamber be interconnected by supporting bracket.
Cooling device comprises cold air generator, thermoregulator, cold air feed tube and freeze drier, knob on thermoregulator can regulate the air outlet temperature of cold air generator, cold air generator is connected to freeze drier by cold air feed tube, remove the moisture in cold air, freeze drier is connected to the air inlet of porcelain bushing cavity.Cooling-air temperature after the inner chamber of porcelain bushing raises, and is got rid of by gas outlet.
Cooling device also comprises air compressor, gas tank, filter and vortex tube, and air compressor connects gas tank and vortex tube by pipeline, between gas tank and vortex tube, be provided with filter, and what transfer pipeline adopted is that 316L stainless steel is made.Described vortex tube is made up of the pipe of a both ends open and nozzle, minor air cell, separation orifice, adjuster valve, pipe two ends are respectively cold air outlet side and hot gas outlet side, outlet side is provided with adjuster valve to hot gas, minor air cell is provided with separation orifice near adjuster valve side, minor air cell connects cold air outlet side, hot gas outlet side and compressed air inlet respectively, compressed air inlet is vortex tube inlet, and nozzle is arranged in compressed air inlet.Cold air gas outlet is connected to the air inlet of porcelain bushing cavity.
Its operation principle: after blast injection enters the minor air cell of vortex tube, air-flow flows to vortex tube inlet to be rotating up to the speed of 1,000,000 turns per minute, part air-flow is flowed out by adjuster valve, after remaining gas is stopped, at Primordial Qi stream inner ring with same rotating speed reverse rotation, and flow to vortex tube outlet.In the process, two bursts of air-flow generation heat exchanges, inner ring air-flow becomes terribly cold, and flow out from left side, outer shroud air-flow then becomes awfully hot, flows out from right side.The temperature of cold airflow and uninterrupted are by regulating the gate control of vortex tube hot gas end valve.It is higher that vortex tube hot gas brings out gas ratio, then the temperature of vortex tube cold air end air-flow is lower, and flow is corresponding minimizing also.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (8)
1. a high-voltage wall bushing air cooling-down device, it is characterized in that, described wall bushing comprises conducting rod, porcelain overcoat, insulating barrier, binding post and flange, porcelain jacket internal is put into from one end of wall bushing after conducting rod and binding post are connected in series, insulating barrier is coated with conducting rod, flange is fixed in the middle part of porcelain overcoat, the bore passages that cooling-air circulates is provided with between described insulating barrier and porcelain overcoat, the air inlet of cooling-air and gas outlet are located at the two ends of porcelain bushing respectively, air inlet is located at the bottom of porcelain bushing, and gas outlet is located at the top of porcelain bushing.
2. high-voltage wall bushing air cooling-down device according to claim 1, is characterized in that, described porcelain bushing outer wall is distributed with increasing and climbs full skirt.
3. high-voltage wall bushing air cooling-down device according to claim 1, is characterized in that, the insulating material employing epoxy resin that described insulating barrier is used.
4. high-voltage wall bushing air cooling-down device according to claim 1, it is characterized in that, supporting bracket is provided with in described air inner chamber, conducting rod is fixed in the middle part of porcelain overcoat by supporting bracket, described supporting bracket plane is vertical with conducting rod, supporting bracket is provided with the circulation passage of cooling-air, and supporting bracket adopts Heat Conduction Material, and Heat Conduction Material is heat conductive silica gel or heat-conducting silicone grease.
5. high-voltage wall bushing air cooling-down device according to claim 1, it is characterized in that, described heat sink comprises cold air generator, thermoregulator, cold air feed tube and freeze drier, knob on thermoregulator can regulate the air outlet temperature of cold air generator, cold air generator is connected to freeze drier by cold air feed tube, and freeze drier is connected to the air inlet of porcelain bushing cavity.
6. high-voltage wall bushing air cooling-down device according to claim 1, it is characterized in that, described heat sink comprises air compressor, gas tank and vortex tube, described air compressor connects gas tank by transfer pipeline, gas tank connects vortex tube, described vortex tube is connected to the air inlet of porcelain bushing cavity, and described vortex tube is provided with adjuster valve.
7. high-voltage wall bushing air cooling-down device according to claim 6, it is characterized in that, described vortex tube is made up of the pipe of a both ends open and nozzle, minor air cell, separation orifice, adjuster valve, pipe two ends are respectively cold air outlet side and hot gas outlet side, outlet side is provided with adjuster valve to hot gas, minor air cell is provided with separation orifice near adjuster valve side, minor air cell connects cold air outlet side, hot gas outlet side and compressed air inlet respectively, nozzle is arranged in compressed air inlet, and cold air outlet side is connected to the air inlet of porcelain bushing cavity.
8. high-voltage wall bushing air cooling-down device according to claim 7, is characterized in that, what described transfer pipeline adopted is that 316L stainless steel is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510537576.6A CN105119215A (en) | 2015-08-26 | 2015-08-26 | Air cooling device for high pressure wall bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510537576.6A CN105119215A (en) | 2015-08-26 | 2015-08-26 | Air cooling device for high pressure wall bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105119215A true CN105119215A (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510537576.6A Pending CN105119215A (en) | 2015-08-26 | 2015-08-26 | Air cooling device for high pressure wall bushing |
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| CN (1) | CN105119215A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107283556A (en) * | 2017-05-19 | 2017-10-24 | 颍上县亚森木业有限责任公司 | A kind of glued board multiple stage circulation cooling device |
| CN109428307A (en) * | 2017-08-22 | 2019-03-05 | 江苏佳鑫环保工程有限公司 | A kind of bus duct insulation connection structure with heat sinking function |
| CN114823012A (en) * | 2022-05-27 | 2022-07-29 | 江苏天邦绝缘材料科技股份有限公司 | Novel high temperature resistant glass fiber insulation sleeve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013160261A (en) * | 2012-02-02 | 2013-08-19 | Hitachi-Ge Nuclear Energy Ltd | End structure of pipe penetration section |
| CN203367913U (en) * | 2013-06-14 | 2013-12-25 | 国家电网公司 | Insulating sleeve facilitating through-wall |
| CN104174261A (en) * | 2014-08-19 | 2014-12-03 | 东南大学 | Compressed air drying device based on vortex tube refrigeration technology and working method of compressed air drying device |
| CN104518466A (en) * | 2013-09-29 | 2015-04-15 | 衡阳华瑞电气有限公司 | Wall bushing with fastened end cover |
| CN204905804U (en) * | 2015-08-26 | 2015-12-23 | 芜湖市凯鑫避雷器有限责任公司 | High pressure air heat sink for wall bushing |
-
2015
- 2015-08-26 CN CN201510537576.6A patent/CN105119215A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013160261A (en) * | 2012-02-02 | 2013-08-19 | Hitachi-Ge Nuclear Energy Ltd | End structure of pipe penetration section |
| CN203367913U (en) * | 2013-06-14 | 2013-12-25 | 国家电网公司 | Insulating sleeve facilitating through-wall |
| CN104518466A (en) * | 2013-09-29 | 2015-04-15 | 衡阳华瑞电气有限公司 | Wall bushing with fastened end cover |
| CN104174261A (en) * | 2014-08-19 | 2014-12-03 | 东南大学 | Compressed air drying device based on vortex tube refrigeration technology and working method of compressed air drying device |
| CN204905804U (en) * | 2015-08-26 | 2015-12-23 | 芜湖市凯鑫避雷器有限责任公司 | High pressure air heat sink for wall bushing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107283556A (en) * | 2017-05-19 | 2017-10-24 | 颍上县亚森木业有限责任公司 | A kind of glued board multiple stage circulation cooling device |
| CN109428307A (en) * | 2017-08-22 | 2019-03-05 | 江苏佳鑫环保工程有限公司 | A kind of bus duct insulation connection structure with heat sinking function |
| CN114823012A (en) * | 2022-05-27 | 2022-07-29 | 江苏天邦绝缘材料科技股份有限公司 | Novel high temperature resistant glass fiber insulation sleeve |
| CN114823012B (en) * | 2022-05-27 | 2023-03-14 | 江苏天邦绝缘材料科技股份有限公司 | Novel high temperature resistant glass fiber insulation sleeve |
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Application publication date: 20151202 |