CN103779048B - A kind of with SF 6for main transformer heat abstractor and the method for coolant media - Google Patents
A kind of with SF 6for main transformer heat abstractor and the method for coolant media Download PDFInfo
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- CN103779048B CN103779048B CN201410055578.7A CN201410055578A CN103779048B CN 103779048 B CN103779048 B CN 103779048B CN 201410055578 A CN201410055578 A CN 201410055578A CN 103779048 B CN103779048 B CN 103779048B
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- 239000002826 coolant Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003507 refrigerant Substances 0.000 claims abstract description 71
- 230000008676 import Effects 0.000 claims abstract description 29
- 238000001816 cooling Methods 0.000 claims abstract description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 14
- 238000001704 evaporation Methods 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The present invention relates to a kind of with SF
6for main transformer heat abstractor and the method for coolant media, this device is by transformer oil flow circulating system and SF
6coolant circulating system forms, and described transformer oil flow circulating system comprises main transformer body, oil pump and SF
6the transformer oil stream of evaporator, the transformer oil that coil and iron core are cooled is loaded with in described main transformer body, described main transformer body top is provided with cold oil import, and described main transformer body bottom is provided with hot oil outlet, and heat transformer oil is delivered to SF from hot oil outlet by described oil pump
6the transformer oil stream import of evaporator, described heat transformer oil is by SF
6the SF around transformer oil stream is enclosed in coolant circulating system
6from SF after refrigerant cooling
6the transformer oil flowing path outlet of evaporator flow to cold oil import.The present invention 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 main transformer type of cooling revolutionary character innovation.
Description
Technical field
The present invention relates to a kind of with SF
6for main transformer heat abstractor and the method for coolant media.
Background technology
Main transformer is in running, due to effect that is electric and magnetic, its coil and iron core can generate heat, as can not be in time this heat taken away, the serious accident even exploded is burnt by causing main transformer, therefore must come cooling coil and iron core by the transformer oil stream be 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 cools.The tradition main transformer type of cooling is mainly air blast cooling, natural air cooled and water-cooled three kinds, although water-cooled is economical, efficiency is also high, if as there is cooling water in cooling system to main transformer Seepage, even minor leakage, also will cause serious consequence; Air-cooled because of air heat content low, make main transformer cooling effectiveness low, main transformer, heat sink apparatus manufacture bulky, the shortcoming such as 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, namely provide a kind of with SF
6for main transformer heat abstractor and the method for coolant media, energy is safe, reliable, efficient, Economic regions walks the heat energy that in operation, main transformer produces, the safety of powerful guarantee electric power system main transformer, economical operation.
To achieve these goals, technical scheme one of the present invention is: a kind of with SF
6for the main transformer heat abstractor of coolant media, by transformer oil flow circulating system and SF
6coolant circulating system forms, and described transformer oil flow circulating system comprises main transformer body, oil pump and SF
6the transformer oil stream of evaporator, the transformer oil that coil and iron core are cooled is loaded with in described main transformer body, described main transformer body top is provided with cold oil import for inputting cold transformer oil and cold oil inlet valve, described main transformer body bottom is provided with hot oil outlet for heat outputting transformer oil and deep fat delivery valve, and heat transformer oil is delivered to SF from hot oil outlet by described oil pump
6the transformer oil stream import of evaporator, described heat transformer oil is by SF
6the SF around transformer oil stream is enclosed in coolant circulating system
6from SF after refrigerant cooling
6the transformer oil flowing path outlet of evaporator flow to cold oil import.
Further, described SF
6coolant circulating system comprises SF
6refrigerant compressor, SF
6cooler, choke valve and SF
6the SF of evaporator
6refrigerant flow, described SF
6evaporator SF
6the outlet of refrigerant flow connects SF
6the import of refrigerant compressor, described SF
6the outlet of refrigerant compressor connects SF
6the import of cooler, described SF
6the outlet of cooler connects SF by choke valve
6evaporator SF
6the import of refrigerant flow.
Further, described SF
6pipeline between the transformer oil flowing path outlet of evaporator and the cold oil import of main transformer body is provided with oil temperature on-line measuring device.
To achieve these goals, technical scheme two of the present invention is: a kind of with SF
6for the main transformer heat dissipating method of coolant media, adopt as above with SF
6for the main transformer 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) oil pump and SF is opened
6coolant circulating system, the heat that main transformer coil and iron core produce is taken away by the transformer oil of flowing in main transformer body, and transformer oil self is become heat transformer oil by heating, and the heat transformer oil flowed out by deep fat delivery valve squeezes into SF through oil pump
6the transformer oil stream of evaporator, and and SF
6the low temperature SF of transformer oil stream surrounding loop is enclosed in coolant circulating system
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, carries out next round cool cycles to coil and iron core.
Further, in step (2), described SF
6coolant circulating system comprises SF
6refrigerant compressor, SF
6cooler, choke valve and SF
6the SF of evaporator
6refrigerant flow, described SF
6evaporator SF
6the outlet of refrigerant flow connects SF
6the import of refrigerant compressor, described SF
6the outlet of refrigerant compressor connects SF
6the import of cooler, described SF
6the outlet of cooler connects SF by choke valve
6evaporator SF
6the import of refrigerant flow, its operation method is as follows: open SF
6refrigerant compressor, SF
6refrigerant compressor will from SF
6evaporator SF
6refrigerant flow low pressure SF out
6gas compression becomes high pressure-temperature SF
6gas, high pressure-temperature SF
6gas enters SF
6high temperature SF is cooled in cooler
6liquid, high temperature SF
6liquid through choke valve expenditure and pressure cooling after at SF
6evaporator SF
6absorb the heat of heat transformer oil in transformer oil stream in a large number in refrigerant flow and flash to low pressure SF
6gas, low pressure SF
6gas is delivered to SF again
6compress in refrigerant compressor, with this iterative cycles.
Further, described SF
6pipeline between the transformer oil flowing path outlet of evaporator and the cold oil import of main transformer body is provided with oil temperature on-line measuring device.
Compared with prior art, the present invention has following beneficial effect: due to the SF used
6medium, it is except having excellent insulation, arc extinguishing, putting out except combustion performance and stable physicochemical property, or a kind of excellent refrigerant having higher thermal enthalpy, using it as the type of cooling of refrigerant 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 main transformer type of cooling revolutionary character innovation.
The present invention had both overcome in the middle of prior art and had been in operation as cooling system occurs to main transformer body seepage with the main transformer of water-cooling pattern, even small seepage, in main transformer, all will produce catastrophe failure under high voltage environment, the serious consequence of even main transformer blast; To overcome again in the middle of prior art with air blast cooling or natural air cooled main transformer, because air heat content is low, make main transformer cooling effectiveness low, the shortcomings such as device fabrication volume is large, many by oil mass, operating cost is high, maintenance workload is large; With now widely use compared with 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 flow circulating system schematic diagram of embodiment of the present invention coiled.
Fig. 2 is the SF of embodiment of the present invention coiled
6coolant circulating system schematic diagram.
Fig. 3 be embodiment of the present invention coiled with SF
6for the main transformer dish heat abstractor schematic diagram of coolant media.
Fig. 4 is the control module automatic controlled cooling model oil stream temperature functional-block diagram of embodiment of the present invention coiled.
Fig. 5 is the SF of shell and tube
6coolant circulating system schematic diagram.
Fig. 6 is board-like SF
6coolant circulating system schematic diagram.
Fig. 7 is the schematic side view of plate-type evaporator.
Fig. 8 is the structural representation of jacket type evaporator.
In figure: 1-SF
6refrigerant compressor, 2-cooler inlet pipe, 3-SF
6cooler, 4-cooling blower, 5-cooler goes out pipe, 6-choke valve, 7-SF
6evaporator, 8-SF
6evaporation endothermic flow process, 9-evaporator SF
6refrigerant flow goes out pipe, 10-deep fat delivery valve, 11-oil pump, 12-oil pump outlet valve, 13-evaporator transformer oil stream inlet pipe, 14-SF
6the transformer oil stream of evaporator, 15-evaporator transformer oil stream goes out pipe, 16-oil temperature on-line measuring device, 17-cold oil inlet valve, 18-coil and iron core, 19-transformer oil, A-main transformer body, B-conservator, the single SF of a-
6board slot, b-single oil stream board slot.
Embodiment
As shown in Fig. 1 ~ 3, a kind of with SF
6for the main transformer heat abstractor of coolant media, by transformer oil flow circulating system and SF
6coolant circulating system forms, and described transformer oil flow circulating system comprises main transformer body A, oil pump 11 and SF
6the transformer oil stream 14 of evaporator 7, the transformer oil 19 that coil and iron core 18 are cooled is loaded with in described main transformer body A, described main transformer body A top is provided with cold oil import for inputting cold transformer oil and cold oil inlet valve 17, described main transformer body A bottom is provided with hot oil outlet for heat outputting transformer oil and deep fat delivery valve 10, and heat transformer oil 19 is delivered to SF from hot oil outlet by described oil pump 11
6transformer oil stream 14 import of evaporator 7, described heat transformer oil is by SF
6the SF around transformer oil stream 14 is enclosed in coolant circulating system
6from SF after refrigerant cooling
6transformer oil stream 14 outlet flow of evaporator 7 is to cold oil import.Wherein, the transformer oil 19 that described its inside of main transformer body A is full of mainly plays the effect of insulation and cooling, main transformer coil and iron core 18 are in operation because the effect of electricity, magnetic can be generated heat, and as taken away by this heat not in time, burn the serious accident even exploded by causing main transformer.
In the present embodiment, described SF
6coolant circulating system comprises SF
6refrigerant compressor 1, SF
6cooler 3, choke valve 6 and SF
6the SF of evaporator 7
6refrigerant flow, described SF
6evaporator SF
6the outlet of refrigerant flow connects SF
6the import of refrigerant compressor 1, described SF
6the outlet of refrigerant compressor 1 connects SF
6the import of cooler 3, described SF
6the outlet of cooler 3 connects SF by choke valve 6
6evaporator SF
6the import of refrigerant flow.Wherein, described SF
6cooler 3 is forced air cooler, namely carries out pressure quenching by cooling blower 4, certain SF
6cooler 3 can also be water cooler, due to SF
6sF in cooler 3
6media for heat exchange, therefore just in case cooling water seepage is also with main transformer, oily stream has nothing to do.Described SF
6the transformer oil stream 14 of evaporator 7 and SF
6refrigerant flow is two medium flow elements of isolating mutually, and transformer oil flow medium is at SF
6transformer oil stream 14, SF is walked in evaporator 7
6coolant media is at SF
6sF is walked in evaporator 7
6refrigerant flow, two circulatory systems are mutually isolated, transformer oil and SF
6refrigerant passes through SF
6in evaporator 7, the sidewall (tube wall, wooden partition or shell wall) of transformer oil stream 14 carries out heat transfer.
In the present embodiment, described SF
6evaporator 7 is coiled, and namely transformer oil stream is the tube side of coiled, SF
6refrigerant flow is the shell side of coiled, can also be any one wherein such as shell and tube, board-like, jacket type certainly.As shown in Figure 5, SF is worked as
6when evaporator 7 is shell and tube, then transformer oil stream is the tube side of shell and tube, SF
6refrigerant flow is the shell side of shell and tube.As shown in Fig. 6 ~ 7, work as SF
6when evaporator 7 is board-like, then transformer oil stream is oil stream board slot group, SF
6refrigerant flow is SF
6board slot group, described SF
6each SF of board slot group
6board slot flows board slot with the oily each oil flowing board slot group and is overlapping.As shown in Figure 8, SF is worked as
6when evaporator 7 is jacket type, can using main transformer body inner chamber as transformer oil stream, on main transformer body shell, weld clip cover is as SF
6refrigerant flow.
In the present embodiment, the outlet of described oil pump 11 is provided with oil pump outlet valve 12, and described oil pump outlet valve 12 is connected to the transformer oil stream 14 in evaporator through evaporator transformer oil stream inlet pipe 13.Conveniently regulate cooling rate according to actual conditions, described SF
6the outlet of cooler 3 and SF
6evaporator SF
6pipeline between the import of refrigerant flow is provided with choke valve 6, with to high temperature SF
6liquid carries out expenditure and pressure.Conveniently detect the oil outlet temperature of transformer oil stream 14 in evaporator, described SF
6the transformer oil stream 14 evaporator transformer oil stream exported between the cold oil import of main transformer body A of evaporator 7 goes out on pipe 15 to be provided with oil temperature on-line measuring device 16.
In the present embodiment, as shown in Figure 4, conveniently intelligent automatic control, described choke valve 6 can specifically electromagnetic throttle valve, and described oil temperature on-line measuring device 16 can specifically temperature monitor, described SF
6induction inner SF can be installed in evaporator 7
6the pressure sensor of gas pressure, described SF
6refrigerant compressor 1 can specifically Refrigerating Compressor with Inverter; Described temperature monitor, electromagnetic throttle valve, Refrigerating Compressor with Inverter and pressure sensor are all electrically connected at control module, evaporator transformer oil stream oil outlet temperature signal detected by it is sent to control module by described temperature monitor, described control module regulates the valve opening of electromagnetic throttle valve, described Refrigerating Compressor with Inverter can adjust electric machine frequency automatically according to Oil-temperature control situation, run with most reasonable manner, described control module can be make the PLC that forms or single-chip microcomputer etc. by technological requirement design programming.When evaporator transformer oil stream oil outlet temperature is too high, described control module controls the valve opening turning electromagnetic throttle valve down, described SF
6evaporator evaporation pressure reduces, and then reduces SF in evaporator
6evaporating temperature is to reduce evaporator transformer oil stream oil outlet temperature, then contrary conversely.In like manner, when summer and oil temperature height, described Refrigerating Compressor with Inverter runs with high-frequency, large load condition, then contrary conversely.
As shown in Fig. 1 ~ 3, a kind of with SF
6for the main transformer heat dissipating method of coolant media, the method adopts above-mentioned with SF
6for the main transformer heat abstractor of coolant media, and carry out according to the following steps: (1) opens the deep fat delivery valve 10 of main transformer body A bottom and the cold oil inlet valve 17 on top, open oil pump outlet valve 12; (2) oil pump 11 and SF is opened
6coolant circulating system, in main transformer body A, the heat that main transformer coil and iron core 18 produce is taken away by the transformer oil of flowing, and transformer oil self is become heat transformer oil by heating, and the heat transformer oil flowed out by deep fat delivery valve 10 squeezes into SF through oil pump 11
6the transformer oil stream 14 of evaporator 7, and and SF
6the low temperature SF of transformer oil stream 14 surrounding loop is enclosed in coolant circulating system
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 17, carries out next round cool cycles to coil and iron core 18.
In the present embodiment, in step (2), described SF
6coolant circulating system comprises SF
6refrigerant compressor 1, SF
6cooler 3, choke valve 6 and SF
6the SF of evaporator 7
6refrigerant flow, its operation method is as follows: open SF
6refrigerant compressor 1, SF
6refrigerant compressor 1 will from evaporator SF
6refrigerant flow goes out the low pressure SF of pipe 9
6gas compression becomes high pressure-temperature SF
6gas; Through SF
6high pressure-temperature SF after refrigerant compressor 1 compresses
6gas enters SF by cooler inlet pipe 2
6in cooler 3, by cooling blower semi-finals quenching, by high pressure-temperature SF
6gas cooled is high temperature SF
6liquid; High temperature SF
6liquid through choke valve 6 expenditure and pressure cooling after at SF
6evaporator SF
6absorb the heat of heat transformer oil in transformer oil stream in a large number in refrigerant flow and flash to low pressure SF
6gas, low pressure SF
6gas is delivered to SF again
6compress in refrigerant compressor 1, with this iterative cycles.
In the present embodiment, in step (2), from SF
6cooler 3 high temperature SF out
6liquid flow to SF through choke valve 6
6the SF of evaporator 7
6refrigerant flow, now causes part high temperature SF due to volume sudden enlargement
6liquid rotating becomes low pressure SF
6gas, liquid flashes in the process of gas and can absorb heat in a large number and make high temperature SF
6fluid temperature sharply declines, the low temperature SF after temperature declines
6the heat transformer oil that in liquid and evaporator, transformer oil stream 14 flows flows through sidewall and carries out heat exchange, all flashes to low pressure SF after heat absorption
6gas, through evaporator SF
6refrigerant flow goes out pipe 9 and is back to SF
6the import of refrigerant compressor 1, carries out next round recuperated cycle.
In the present embodiment, as shown in Figure 4, can, according to the real-time online data of temperature monitor, electromagnetic throttle valve be regulated automatically to control evaporator SF by control module
6sF in refrigerant flow
6evaporating pressure and SF
6evaporating temperature, to ensure that the oil outlet temperature of cooled transformer oil in evaporator transformer oil stream controls in the scope arranged.
The foregoing is only preferred embodiment of the present invention, all equalizations done 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 (1)
1. one kind with SF
6for the main transformer heat dissipating method of coolant media, it is characterized in that: adopt with SF
6for the main transformer heat abstractor of coolant media, described with SF
6for the main transformer heat abstractor of coolant media is by transformer oil flow circulating system and SF
6coolant circulating system forms, and described transformer oil flow circulating system comprises main transformer body, oil pump and SF
6the transformer oil stream of evaporator, the transformer oil that coil and iron core are cooled is loaded with in described main transformer body, described main transformer body top is provided with cold oil import for inputting cold transformer oil and cold oil inlet valve, described main transformer body bottom is provided with hot oil outlet for heat outputting transformer oil and deep fat delivery valve, and heat transformer oil is delivered to SF from hot oil outlet by described oil pump
6the transformer oil stream import of evaporator, described heat transformer oil is by SF
6the SF around transformer oil stream is enclosed in coolant circulating system
6from SF after refrigerant cooling
6the transformer oil flowing path outlet of evaporator flow to cold oil import, described SF
6pipeline between the transformer oil flowing path outlet of evaporator and the cold oil import of main transformer body is provided with oil temperature on-line measuring device; Described SF
6coolant circulating system comprises SF
6refrigerant compressor, SF
6cooler, choke valve and SF
6the SF of evaporator
6refrigerant flow, described SF
6evaporator SF
6the top exit of refrigerant flow connects SF
6the import of refrigerant compressor, described SF
6the outlet of refrigerant compressor connects SF
6the import of cooler, described SF
6the outlet of cooler connects SF by choke valve
6evaporator SF
6the bottom inlet of refrigerant flow; Described choke valve is electromagnetic throttle valve, and described oil temperature on-line measuring device is temperature monitor, described SF
6induction inner SF is installed in evaporator
6the pressure sensor of gas pressure, described SF
6refrigerant compressor is Refrigerating Compressor with Inverter, and described temperature monitor, electromagnetic throttle valve, Refrigerating Compressor with Inverter and pressure sensor are all electrically connected at control module, and described temperature monitor is by SF detected by it
6the transformer oil stream oil outlet temperature signal of evaporator sends to control module, described control module regulates the valve opening of electromagnetic throttle valve, described Refrigerating Compressor with Inverter automatically adjusts electric machine frequency according to Oil-temperature control situation and runs with most reasonable manner, and described control module makes by technological requirement design programming the PLC or single-chip microcomputer that form; 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) oil pump and SF is opened
6coolant circulating system, the heat that main transformer coil and iron core produce is taken away by the transformer oil of flowing in main transformer body, and transformer oil self is become heat transformer oil by heating, and the heat transformer oil flowed out by deep fat delivery valve squeezes into SF through oil pump
6the transformer oil stream of evaporator, and and SF
6the low temperature SF of transformer oil stream surrounding loop is enclosed in coolant circulating system
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, carries out next round cool cycles to coil and iron core; Wherein, described SF
6the operation method of coolant circulating system is as follows: open SF
6refrigerant compressor, SF
6refrigerant compressor will from SF
6evaporator SF
6refrigerant flow low pressure SF out
6gas compression becomes high pressure-temperature SF
6gas, high pressure-temperature SF
6gas enters SF
6high temperature SF is cooled in cooler
6liquid, high temperature SF
6liquid flow to SF through choke valve
6the SF of evaporator
6refrigerant flow, now causes part high temperature SF due to volume sudden enlargement
6liquid rotating becomes low pressure SF
6gas, liquid flashes to a large amount of heat absorption in the process of gas and makes high temperature SF
6fluid temperature sharply declines, the low temperature SF after temperature declines
6liquid and SF
6in evaporator, the heat transformer oil of transformer oil flow path flows through sidewall and carries out heat exchange, all flashes to low pressure SF after heat absorption
6gas, low pressure SF
6gas is through evaporator SF
6refrigerant flow goes out pipe and is delivered to SF again
6compress in refrigerant compressor, with this iterative cycles; Work as SF
6when the transformer oil stream oil outlet temperature of evaporator is too high, described control module controls the valve opening turning electromagnetic throttle valve down, described SF
6evaporator evaporation pressure reduces, and then reduces SF
6sF in evaporator
6evaporating temperature, to reduce SF
6the transformer oil stream oil outlet temperature of evaporator is then contrary conversely; When summer and oil temperature height, described Refrigerating Compressor with Inverter runs with high-frequency, large load condition, then contrary conversely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410055578.7A CN103779048B (en) | 2014-02-19 | 2014-02-19 | A kind of with SF 6for main transformer heat abstractor and the method for coolant media |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410055578.7A CN103779048B (en) | 2014-02-19 | 2014-02-19 | A kind of with SF 6for main transformer heat abstractor and the method for coolant media |
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| CN103779048B true CN103779048B (en) | 2016-03-30 |
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| CN104008856B (en) * | 2014-05-08 | 2016-05-04 | 国家电网公司 | A kind of main transformer oil conductance is to microcirculation device and using method |
| 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 |
| RU2717230C1 (en) * | 2019-02-18 | 2020-03-19 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" | Device of sf6-water cooling of oil transformer |
| CN114005661B (en) * | 2021-12-29 | 2022-03-22 | 深圳灏鹏科技有限公司 | Optical radiation-based self-maintenance power transformer and use method thereof |
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| Publication number | Publication date |
|---|---|
| CN103779048A (en) | 2014-05-07 |
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