CN103794337A - Main transformer shell and tube heat dissipation device and method with SF6 as refrigerant medium - Google Patents
Main transformer shell and tube heat dissipation device and method with SF6 as refrigerant medium Download PDFInfo
- Publication number
- CN103794337A CN103794337A CN201410055926.0A CN201410055926A CN103794337A CN 103794337 A CN103794337 A CN 103794337A CN 201410055926 A CN201410055926 A CN 201410055926A CN 103794337 A CN103794337 A CN 103794337A
- Authority
- CN
- China
- Prior art keywords
- tube
- shell
- oil
- main transformer
- evaporator
- 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
Images
Landscapes
- Transformer Cooling (AREA)
Abstract
The invention relates to a main transformer shell and tube heat dissipation device and method with SF6 as a refrigerant medium. The device is composed of a transformer oil flow cooling circulation system and an SF6 refrigerant circulation system. The transformer oil flow cooling circulation system comprises a main transformer body, an oil pump and a tube pass of a shell and tube SF6 evaporator. Transformer oil is contained in the main transformer body, a cold oil inlet and a cold oil inlet valve are arranged on the upper portion of the main transformer body, and a hot oil outlet and a hot oil outlet valve are arranged on the lower portion of the main transformer body. The oil pump conveys the hot transformer oil to a tube pass inlet of the shell and tube SF6 evaporator from the hot oil outlet, and the hot transformer oil is cooled by the SF6 refrigerant surrounding the tube pass in the SF6 refrigerant circulation system and then flows into the cold oil inlet from a tube pass outlet of the shell and tube SF6 evaporator. The main transformer shell and tube heat dissipation device has the advantages of being safe, reliable, high in cooling efficiency, small in size, few in oil consumption and maintenance and economical in overall operation and is a revolutionary innovation of main transformer cooling mode.
Description
Technical field
The present invention relates to a kind of with SF
6for main transformer shell and tube heat abstractor and the method for coolant media.
Background technology
Main transformer is in running, due to the effect of electricity and magnetic, its coil and iron core can generate heat, as can not be in time this heat taken away, to cause main transformer to burn the even serious accident of blast, therefore must come cooling coil and iron core by the transformer oil stream being full of in main transformer, and the heat that transformer oil stream is taken away needs to carry out heat exchange by heat abstractor, cooled cold oil stream enters main transformer body again and carries out cooling.The tradition main transformer type of cooling is mainly three kinds of air blast cooling, natural air cooled and water-cooleds, although water-cooled is economical, efficiency is also high, if if generation cooling water in cooling system is to main transformer Seepage, even minor leakage also will cause serious consequence; Air-cooled because air heat content is low, make main transformer cooling effectiveness low, main transformer, heat sink apparatus are manufactured the shortcomings such as bulky, many by oil mass, operating cost is high, maintenance is large.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, provide a kind of with SF
6for main transformer shell and tube heat abstractor and the method for coolant media, can take away safe, reliable, efficient, economically the heat energy that main transformer in service produces, safety, the economical operation of powerful guarantee electric power system main transformer.
To achieve these goals, technical scheme one of the present invention is: a kind of with SF
6for the main transformer shell and tube heat abstractor of coolant media, by transformer oil stream cooling recirculation system and SF
6coolant circulating system composition, described transformer oil stream cooling recirculation system comprises main transformer body, oil pump and shell and tube SF
6the tube side of evaporator, in described main transformer body, be loaded with coil and iron core are carried out to cooling transformer oil, described main transformer body top is provided with cold oil import and the cold oil inlet valve for inputting cold transformer oil, described main transformer body bottom is provided with for the hot oil outlet of heat outputting transformer oil and deep fat delivery valve, and described oil pump is delivered to shell and tube SF by heat transformer oil from hot oil outlet
6the tube side import of evaporator, described heat transformer oil is by SF
6in coolant circulating system, be enclosed in tube side SF around
6after refrigerant is cooling from shell and tube SF
6the tube side outlet of evaporator flow to cold oil import.
Further, described SF
6coolant circulating system comprises SF
6refrigerant compressor, cooler, choke valve and shell and tube SF
6the shell side of evaporator, described shell and tube SF
6the outlet of evaporator shell side connects SF
6the import of refrigerant compressor, described SF
6the outlet of refrigerant compressor connects the import of cooler, and the outlet of described cooler connects shell and tube SF by choke valve
6the import of evaporator shell side.
Further, described shell and tube SF
6on pipeline between tube side outlet and the cold oil import of main transformer body of evaporator, oil temperature on-line measuring device is installed.
To achieve these goals, technical scheme two of the present invention is: a kind of with SF
6for the main transformer shell and tube heat dissipating method of coolant media, the method adopts as above with SF
6for the main transformer shell and tube heat abstractor of coolant media, and carry out according to the following steps: (1) opens the deep fat delivery valve of main transformer body bottom and the cold oil inlet valve on top; (2) open oil pump and SF
6coolant circulating system, transformer oil mobile in main transformer body is taken away the heat of main transformer coil and iron core generation, and transformer oil self is heated and becomes heat transformer oil, and the heat transformer oil being flowed out by deep fat delivery valve is squeezed into shell and tube SF through oil pump
6the tube side of evaporator, and and SF
6in coolant circulating system, be enclosed in the tube side low temperature SF of circulation around
6refrigerant carries out heat exchange, and its heat is by low temperature SF
6refrigerant is taken away and is become cold transformer oil, and cold transformer oil comes back in main transformer main body through cold oil inlet valve, and coil and iron core are carried out to next round cool cycles.
Further, in step (2), described SF
6coolant circulating system comprises SF
6refrigerant compressor, cooler, choke valve and shell and tube SF
6the shell side of evaporator, described shell and tube SF
6the outlet of evaporator shell side connects SF
6the import of refrigerant compressor, described SF
6the outlet of refrigerant compressor connects the import of cooler, and the outlet of described cooler connects shell and tube SF by choke valve
6the import of evaporator shell side, its operation method is as follows: open SF
6refrigerant compressor, SF
6refrigerant compressor will be from shell and tube SF
6evaporator shell side low pressure SF out
6gas compression becomes high pressure-temperature SF
6gas, high pressure-temperature SF
6gas enters and in cooler, is cooled to high temperature SF
6liquid, high temperature SF
6liquid after choke valve expenditure and pressure cooling at shell and tube SF
6in evaporator shell side, absorb the heat of heat transformer oil in tube sides in a large number and flash to low pressure SF
6gas, low pressure SF
6gas is delivered to again SF
6in refrigerant compressor, compress, with this iterative cycles.
Further, described shell and tube SF
6on pipeline between tube side outlet and the cold oil import of main transformer body of evaporator, oil temperature on-line measuring device is installed.
Compared with prior art, the present invention has following beneficial effect: due to the SF using
6medium, it is except having good insulation, arc extinguishing, putting out combustion performance and stable physicochemical property, or a kind of good refrigerant that has higher thermal enthalpy, the shell and tube evaporation endothermic type of cooling using it as refrigerant is compared with traditional main transformer type of cooling, have safe and reliable, cooling effectiveness is high, equipment volume is little, few by oil mass, safeguard less, overall operation economic dispatch huge advantage, be the revolutionary character innovation of the main transformer type of cooling.
The present invention had both overcome in the middle of prior art with the main transformer of water-cooling pattern and is in operation and occurs to main transformer body seepage as cooling system, even small seepage all will produce catastrophe failure in main transformer under high voltage environment, and the serious consequence that even main transformer explodes; The shortcomings such as prior art is central because air heat content is low, makes main transformer cooling effectiveness low with air blast cooling or natural air cooled main transformer, and device fabrication volume is large, many by oil mass, operating cost is high, maintenance workload is large are overcome again; Compared with being now widely used traditional main transformer radiating mode, the present invention has huge advantage.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Accompanying drawing explanation
Fig. 1 is the transformer oil stream cooling recirculation system schematic diagram of the embodiment of the present invention.
Fig. 2 is the SF of the embodiment of the present invention
6coolant circulating system schematic diagram.
Fig. 3 be the embodiment of the present invention with SF
6for the main transformer shell and tube heat abstractor schematic diagram of coolant media.
Fig. 4 is that the control module of the embodiment of the present invention is controlled cold oil stream temperature functional-block diagram automatically.
In figure: 1-SF
6refrigerant compressor, 2-cooler inlet pipe, 3-cooler, 4-cooling blower, 5-cooler goes out pipe, 6-choke valve, 7-shell and tube SF
6evaporator, the import of 8-evaporator tube side, 9-shell and tube SF
6the tube side of evaporator, oil stream in 10-evaporator tube side, the outlet of 11-evaporator tube side, the outlet of 12-evaporator shell side, 13-evaporator shell side outlet SF
6flow process, the import of 14-evaporator shell side, 15-shell and tube SF
6the shell side of evaporator, 16-SF
6the flow process of refrigerant in evaporator shell side, 17-deep fat delivery valve, 18-oil pump, 19-oil pump outlet valve, 20-cold oil inlet valve, 21-oil temperature on-line measuring device, 22-coil and iron core, 23-transformer oil, A-main transformer body, B-conservator.
Embodiment
As shown in Fig. 1 ~ 3, a kind of with SF
6for the main transformer shell and tube heat abstractor of coolant media, by transformer oil stream cooling recirculation system and SF
6coolant circulating system composition, described transformer oil stream cooling recirculation system comprises main transformer body A, oil pump 18 and shell and tube SF
6the tube side 9 of evaporator 7, in described main transformer body A, be loaded with coil and iron core 22 are carried out to cooling transformer oil 23, described main transformer body A top is provided with cold oil import and the cold oil inlet valve 20 for inputting cold transformer oil, described main transformer body A bottom is provided with hot oil outlet and the deep fat delivery valve 17 for heat outputting transformer oil, and described oil pump 18 is delivered to shell and tube SF by heat transformer oil 23 from hot oil outlet
6tube side 9 imports 8 of evaporator 7, described heat transformer oil is by SF
6in coolant circulating system, be enclosed in tube side 9 SF around
6after refrigerant is cooling from shell and tube SF
6the tube side 9 of evaporator 7 exports 11 and flow to cold oil import.Wherein, the transformer oil 23 that its inside of described main transformer body A is full of mainly plays insulation and cooling effect, main transformer coil and iron core 22 are in operation because the effect of electricity, magnetic can be generated heat, and as not in time this heat taken away, will cause main transformer to burn the even serious accident of blast.
In the present embodiment, described SF
6coolant circulating system comprises SF
6 refrigerant compressor 1, cooler 3, choke valve 6 and shell and tube SF
6the shell side 15 of evaporator 7, described shell and tube SF
6the outlet of evaporator 7 shell sides connects SF
6the import of refrigerant compressor 1, described SF
6the outlet of refrigerant compressor 1 connects the import of cooler 3, and the outlet of described cooler 3 connects shell and tube SF by choke valve 6
6the import 14 of evaporator 7 shell sides.Wherein, described cooler 3 can be the forced air cooler of being forced quenching by cooling blower 4, can be also water cooler, owing to being SF in cooler 3
6media for heat exchange, therefore just in case cooling water seepage is also irrelevant with main transformer oil stream; Described shell and tube SF
6that evaporator 7 has is safe and reliable, heat exchange efficiency is high, cleaning is easy, safeguard the advantages such as simple; Described shell and tube SF
6 evaporator 7 is divided into tube side 9 and 15 two medium flow process parts of isolating mutually of shell side, and transformer oil flow medium is at shell and tube SF
6in evaporator 7, walk tube side 9, SF
6coolant media is at shell and tube SF
6in evaporator 7, walk 15, two circulatory systems of shell side and mutually isolate, transformer oil and SF
6refrigerant is by shell and tube SF
6in evaporator 7, the tube wall of tube side 9 carries out indirect heat exchange.
In the present embodiment, the outlet of described oil pump 18 is provided with oil pump outlet valve 19, and described oil pump outlet valve 19 is connected to the tube side 9 in evaporator through evaporator oil stream tube side inlet pipe.Regulate cooling rate, the outlet of described cooler 3 and shell and tube SF for convenient according to actual conditions
6on pipeline between the import 14 of evaporator 7 shell sides, choke valve 6 is installed, with to high temperature SF
6liquid carries out expenditure and pressure.For the convenient oil outlet temperature that detects tube side 9 in evaporator, described shell and tube SF
6tube side 9 outlet of evaporator 7 and the evaporator oil between the cold oil import of main transformer body A flow tube side and go out oil temperature on-line measuring device 21 is installed on pipe.
In the present embodiment, as shown in Figure 4, in order to facilitate intelligent automatic control, specifically electromagnetic throttle valve of described choke valve 6, specifically temperature monitor of described oil temperature on-line measuring device 21, described shell and tube SF
6evaporator 7 is interior can be provided with the inner SF of induction
6the pressure sensor of gas pressure; Described temperature monitor, electromagnetic throttle valve and pressure sensor are all electrically connected at control module, described temperature monitor detects that by it evaporator tube side oil outlet temperature signal sends to control module, described control module regulates the valve opening of electromagnetic throttle valve, and described control module can be to make by technological requirement design programming the PLC or the single-chip microcomputer etc. that form.In the time that evaporator tube side oil outlet temperature is too high, the valve opening of electromagnetic throttle valve is turned in described control module control down, described shell and tube SF
6evaporator 7 evaporating pressures reduce, and then reduce SF in evaporator
6evaporating temperature is to reduce evaporator tube side oil outlet temperature, contrary conversely.
As shown in Fig. 1 ~ 3, a kind of with SF
6for the main transformer shell and tube heat dissipating method of coolant media, the method adopts above-mentioned with SF
6for the main transformer shell and tube heat abstractor of coolant media, and carry out according to the following steps: (1) opens the deep fat delivery valve 17 of main transformer body A bottom and the cold oil inlet valve 20 on top, open oil pump outlet valve 19; (2) open oil pump 18 and SF
6coolant circulating system, the heat that mobile transformer oil produces main transformer coil and iron core 22 in main transformer body A is taken away, and transformer oil self is heated and become heat transformer oil, and the heat transformer oil being flowed out by deep fat delivery valve 17 is squeezed into shell and tube SF through oil pump 18
6the tube side 9 of evaporator 7, and and SF
6in coolant circulating system, be enclosed in the tube side 9 low temperature SF of circulation around
6refrigerant carries out heat exchange, and its heat is by low temperature SF
6refrigerant is taken away and is become cold transformer oil, and cold transformer oil comes back in main transformer main body through cold oil inlet valve 20, and coil and iron core 22 are carried out to next round cool cycles.
In the present embodiment, in step (2), described SF
6coolant circulating system comprises SF
6 refrigerant compressor 1, cooler 3, choke valve 6 and shell and tube SF
6the shell side 15 of evaporator 7, its operation method is as follows: open SF
6 refrigerant compressor 1, SF
6 refrigerant compressor 1 is by the low pressure SF from evaporator shell side outlet 12
6gas compression becomes high pressure-temperature SF
6gas; Through SF
6high pressure-temperature SF after refrigerant compressor 1 compression
6gas enters in cooler 3 by cooler inlet pipe 2, by cooling blower semi-finals quenching processed, by high pressure-temperature SF
6gas cooled is high temperature SF
6liquid; High temperature SF
6liquid after choke valve 6 expenditure and pressures coolings at shell and tube SF
6in evaporator 7 shell sides 15, absorb the heat of heat transformer oil in tube sides in a large number and flash to low pressure SF
6gas, low pressure SF
6gas is delivered to again SF
6compression in refrigerant compressor 1, with this iterative cycles.
In the present embodiment, in step (2), from cooler 3 high temperature SF out
6liquid flow to shell and tube SF through choke valve 6
6the shell side 15 of evaporator 7, now because volume sudden enlargement causes part high temperature SF
6liquid rotating becomes low pressure SF
6gas, liquid evaporation becomes in the process of gas can a large amount of heat absorptions and make high temperature SF
6fluid temperature sharply declines, the low temperature SF after temperature declines
6in liquid and evaporator, the mobile heat transformer oil stream of tube side 9 carries out heat exchange by tube wall, all flashes to low pressure SF after heat absorption
6gas, is back to SF through evaporator shell side outlet 12
6the import of refrigerant compressor 1, carries out next round heat exchange circulation.
In the present embodiment, as shown in Figure 4, can, according to the real-time online data of temperature monitor, regulate electromagnetic throttle valve automatically to control SF in evaporator shell side by control module
6evaporating pressure and evaporating temperature, be controlled in the scope of setting with the oil outlet temperature of the transformer oil that guarantees to be cooled in evaporator tube side.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (6)
1. one kind with SF
6for the main transformer shell and tube heat abstractor of coolant media, it is characterized in that: by transformer oil stream cooling recirculation system and SF
6coolant circulating system composition, described transformer oil stream cooling recirculation system comprises main transformer body, oil pump and shell and tube SF
6the tube side of evaporator, in described main transformer body, be loaded with coil and iron core are carried out to cooling transformer oil, described main transformer body top is provided with cold oil import and the cold oil inlet valve for inputting cold transformer oil, described main transformer body bottom is provided with for the hot oil outlet of heat outputting transformer oil and deep fat delivery valve, and described oil pump is delivered to shell and tube SF by heat transformer oil from hot oil outlet
6the tube side import of evaporator, described heat transformer oil is by SF
6in coolant circulating system, be enclosed in tube side SF around
6after refrigerant is cooling from shell and tube SF
6the tube side outlet of evaporator flow to cold oil import.
2. according to claim 1 with SF
6for the main transformer shell and tube heat abstractor of coolant media, it is characterized in that: described SF
6coolant circulating system comprises SF
6refrigerant compressor, cooler, choke valve and shell and tube SF
6the shell side of evaporator, described shell and tube SF
6the outlet of evaporator shell side connects SF
6the import of refrigerant compressor, described SF
6the outlet of refrigerant compressor connects the import of cooler, and the outlet of described cooler connects shell and tube SF by choke valve
6the import of evaporator shell side.
3. according to claim 1 and 2 with SF
6for the main transformer shell and tube heat abstractor of coolant media, it is characterized in that: described shell and tube SF
6on pipeline between tube side outlet and the cold oil import of main transformer body of evaporator, oil temperature on-line measuring device is installed.
4. one kind with SF
6for the main transformer shell and tube heat dissipating method of coolant media, it is characterized in that: the method adopts as claimed in claim 1 with SF
6for the main transformer shell and tube heat abstractor of coolant media, and carry out according to the following steps: (1) opens the deep fat delivery valve of main transformer body bottom and the cold oil inlet valve on top; (2) open oil pump and SF
6coolant circulating system, transformer oil mobile in main transformer body is taken away the heat of main transformer coil and iron core generation, and transformer oil self is heated and becomes heat transformer oil, and the heat transformer oil being flowed out by deep fat delivery valve is squeezed into shell and tube SF through oil pump
6the tube side of evaporator, and and SF
6in coolant circulating system, be enclosed in the tube side low temperature SF of circulation around
6refrigerant carries out heat exchange, and its heat is by low temperature SF
6refrigerant is taken away and is become cold transformer oil, and cold transformer oil comes back in main transformer main body through cold oil inlet valve, and coil and iron core are carried out to next round cool cycles.
5. according to claim 4 with SF
6for the main transformer shell and tube heat dissipating method of coolant media, it is characterized in that: in step (2), described SF
6coolant circulating system comprises SF
6refrigerant compressor, cooler, choke valve and shell and tube SF
6the shell side of evaporator, described shell and tube SF
6the outlet of evaporator shell side connects SF
6the import of refrigerant compressor, described SF
6the outlet of refrigerant compressor connects the import of cooler, and the outlet of described cooler connects shell and tube SF by choke valve
6the import of evaporator shell side, its operation method is as follows: open SF
6refrigerant compressor, SF
6refrigerant compressor will be from shell and tube SF
6evaporator shell side low pressure SF out
6gas compression becomes high pressure-temperature SF
6gas, high pressure-temperature SF
6gas enters and in cooler, is cooled to high temperature SF
6liquid, high temperature SF
6liquid after choke valve expenditure and pressure cooling at shell and tube SF
6in evaporator shell side, absorb the heat of heat transformer oil in tube sides in a large number and flash to low pressure SF
6gas, low pressure SF
6gas is delivered to again SF
6in refrigerant compressor, compress, with this iterative cycles.
According to described in claim 4 or 5 with SF
6for the main transformer shell and tube heat dissipating method of coolant media, it is characterized in that: described shell and tube SF
6on pipeline between tube side outlet and the cold oil import of main transformer body of evaporator, oil temperature on-line measuring device is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410055926.0A CN103794337B (en) | 2014-02-19 | 2014-02-19 | A kind of with SF6For the main transformer shell and tube heat dissipating method of coolant media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410055926.0A CN103794337B (en) | 2014-02-19 | 2014-02-19 | A kind of with SF6For the main transformer shell and tube heat dissipating method of coolant media |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103794337A true CN103794337A (en) | 2014-05-14 |
| CN103794337B CN103794337B (en) | 2016-05-04 |
Family
ID=50669906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410055926.0A Active CN103794337B (en) | 2014-02-19 | 2014-02-19 | A kind of with SF6For the main transformer shell and tube heat dissipating method of coolant media |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103794337B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024316A (en) * | 2016-08-09 | 2016-10-12 | 胡启元 | Intelligent heat-radiating transformer |
| CN107706783A (en) * | 2017-09-29 | 2018-02-16 | 国网浙江省电力公司绍兴供电公司 | A kind of device for the heating cooling of fully closed combined electric unit conductor |
| CN107919767A (en) * | 2017-12-19 | 2018-04-17 | 苏州泰铎电气有限公司 | A kind of constant temperature magneto for tower shelf type oil pumping machine |
| CN114188127A (en) * | 2021-11-10 | 2022-03-15 | 国网福建省电力有限公司邵武市供电公司 | Power transformer cooling device and cooling method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2331943Y (en) * | 1997-07-08 | 1999-08-04 | 王广林 | Shell-and-tube heat exchanger with area adjustable device |
| CN1390356A (en) * | 1999-11-17 | 2003-01-08 | 特里克斯科有限责任公司 | Apparatus and method for cooling power transformers |
| CN2643261Y (en) * | 2003-08-23 | 2004-09-22 | 山东贝尔新能源有限公司 | Hollow tube and shell type heat exchanger |
| CN101454849A (en) * | 2006-03-22 | 2009-06-10 | 林圣皇 | The cooler for transformer using generation cycle |
| CN103390485A (en) * | 2013-07-22 | 2013-11-13 | 浙江江山特种变压器有限公司 | Liquid nitrogen strong cooling transformer and refrigerating method thereof |
| CN203366908U (en) * | 2013-05-24 | 2013-12-25 | 国家电网公司 | Heat pipe array oil cooler |
| CN203706798U (en) * | 2014-02-19 | 2014-07-09 | 国家电网公司 | Main transformer tube nest type cooling device with SF6 medium as coolant |
-
2014
- 2014-02-19 CN CN201410055926.0A patent/CN103794337B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2331943Y (en) * | 1997-07-08 | 1999-08-04 | 王广林 | Shell-and-tube heat exchanger with area adjustable device |
| CN1390356A (en) * | 1999-11-17 | 2003-01-08 | 特里克斯科有限责任公司 | Apparatus and method for cooling power transformers |
| CN2643261Y (en) * | 2003-08-23 | 2004-09-22 | 山东贝尔新能源有限公司 | Hollow tube and shell type heat exchanger |
| CN101454849A (en) * | 2006-03-22 | 2009-06-10 | 林圣皇 | The cooler for transformer using generation cycle |
| CN203366908U (en) * | 2013-05-24 | 2013-12-25 | 国家电网公司 | Heat pipe array oil cooler |
| CN103390485A (en) * | 2013-07-22 | 2013-11-13 | 浙江江山特种变压器有限公司 | Liquid nitrogen strong cooling transformer and refrigerating method thereof |
| CN203706798U (en) * | 2014-02-19 | 2014-07-09 | 国家电网公司 | Main transformer tube nest type cooling device with SF6 medium as coolant |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024316A (en) * | 2016-08-09 | 2016-10-12 | 胡启元 | Intelligent heat-radiating transformer |
| CN107706783A (en) * | 2017-09-29 | 2018-02-16 | 国网浙江省电力公司绍兴供电公司 | A kind of device for the heating cooling of fully closed combined electric unit conductor |
| CN107919767A (en) * | 2017-12-19 | 2018-04-17 | 苏州泰铎电气有限公司 | A kind of constant temperature magneto for tower shelf type oil pumping machine |
| CN114188127A (en) * | 2021-11-10 | 2022-03-15 | 国网福建省电力有限公司邵武市供电公司 | Power transformer cooling device and cooling method |
| CN114188127B (en) * | 2021-11-10 | 2024-06-14 | 国网福建省电力有限公司邵武市供电公司 | Cooling device and cooling method for power transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103794337B (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103390485B (en) | A kind of strong cold transformer of liquid nitrogen and refrigerating method thereof | |
| CN103779048B (en) | A kind of with SF 6for main transformer heat abstractor and the method for coolant media | |
| CN103794337B (en) | A kind of with SF6For the main transformer shell and tube heat dissipating method of coolant media | |
| CN103943317B (en) | SF6Main transformer cooling device and using method with spray oil contact heat-exchanging | |
| CN203746611U (en) | Optimumintelligent control system for temperature difference of winding and oil flow of main transformer | |
| CN203706798U (en) | Main transformer tube nest type cooling device with SF6 medium as coolant | |
| CN103779049B (en) | A kind of with SF 6for heat-pump-type main transformer heat-exchanger rig and the method for heat transferring medium | |
| CN103779050B (en) | A kind of with SF 6for main transformer coiled heat abstractor and the method for coolant media | |
| CN103824677B (en) | A kind of main transformer winding and oil flow optimum intelligent control system and the control method of the temperature difference | |
| CN203706795U (en) | Main transformer cooling device with SF6 medium as coolant | |
| CN202455574U (en) | Microwave device cooling system | |
| CN203706799U (en) | Main transformer plate type cooling device with SF6 medium as coolant | |
| CN204010918U (en) | A kind of cooling device for dry-type transformer | |
| CN203706796U (en) | Main transformer coiled tube type cooling device with SF6 medium as coolant | |
| CN204087989U (en) | A kind of main transformer falling film type heat-exchanger rig | |
| CN204010915U (en) | A kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function | |
| CN204991357U (en) | Energy -saving power transformer heat sink | |
| CN104157399B (en) | A kind of main transformer falling film type heat-exchanger rig and using method | |
| CN104157403A (en) | Cooling device for dry-type transformer and using method | |
| CN204045340U (en) | A kind of cooling device of main transformer radiator | |
| CN203706792U (en) | Main transformer clamp cover type cooling device with SF6 medium as coolant | |
| CN103779047B (en) | A kind of with SF6For the board-like heat dissipating method of main transformer of coolant media | |
| CN103811152B (en) | A kind of with SF 6for main transformer jacket type heat abstractor and the method for coolant media | |
| CN203706797U (en) | Heat pump type main transformer heat exchange device with SF6 medium as heat exchange medium | |
| CN103985510B (en) | SF6the column plate type main transformer chiller directly contacted with oil and using method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |