CN204010915U - A kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function - Google Patents
A kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function Download PDFInfo
- Publication number
- CN204010915U CN204010915U CN201420462380.6U CN201420462380U CN204010915U CN 204010915 U CN204010915 U CN 204010915U CN 201420462380 U CN201420462380 U CN 201420462380U CN 204010915 U CN204010915 U CN 204010915U
- Authority
- CN
- China
- Prior art keywords
- main transformer
- oil
- film evaporator
- transformer
- downward
- 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.)
- Expired - Fee Related
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 38
- 239000011552 falling film Substances 0.000 title claims abstract description 19
- 239000010408 film Substances 0.000 claims abstract description 104
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 239000002826 coolant Substances 0.000 claims abstract description 13
- 239000003507 refrigerant Substances 0.000 claims description 41
- 230000008676 import Effects 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 10
- 238000004804 winding Methods 0.000 abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000009102 absorption Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Landscapes
- Transformer Cooling (AREA)
Abstract
The utility model provides a kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function, and the main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function flows cooling recirculation system, the coolant media circulatory system and composition of the control system by transformer oil.This device transformer oil directly contacts with coolant media, but carries out heat exchange by the film supplying tube tube wall of downward film evaporator, and the automatic work of controlling employing Refrigerating Compressor with Inverter and frequency conversion oil pump remains that main transformer winding and oil flow the optimal value of the temperature difference.The utlity model has safe and reliable, cooling effectiveness is high, equipment volume is little, few by oil mass, safeguard less, overall operation economic dispatch huge advantage, can greatly reduce copper, the iron loss of operation main transformer, improve main transformer overload ability and Short Circuit withstand current capacity, extend main transformer useful life, powerful guarantee main transformer safe operation more.
Description
Technical field
The utility model relates to a kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function.
Background technology
Main transformer is in running, effect due to electricity and magnetic, its winding 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 winding 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 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 of air heat content low, make that main transformer cooling effectiveness is low, the scope that cools is very little, be subject to such environmental effects large, main transformer, heat sink apparatus are manufactured bulky, many by oil mass, operating cost is high, maintenance is large, and cause that main transformer copper iron loss is large, overload capacity and Short Circuit withstand current capacity little, the short shortcomings that waits of insulation life.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art part, a kind of main transformer falling film type heat-exchanger rig and using method with intelligent frequency-conversion function be provided, 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.
Specific embodiments of the present utility model is: a kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function, comprise that one is built-in with the transformer body of transformer Cooling oil and is arranged at the downward film evaporator of transformer body one side, described downward film evaporator comprises the housing of a sealing, in described housing, be provided with coolant media, described housing middle part is vertically arranged with several film supplying tubes, described film supplying tube is the tubular body that two ends have opening, described film supplying tube top is placed in an orifice plate, described orifice plate is divided into upper chamber and lower chambers by housing, the tube wall that described each film supplying tube stretches out orifice plate upper end is provided with film supplying tube spout hole, the sidewall on described transformer body top is provided with out deep fat electromagnetically operated valve, describedly go out deep fat electromagnetically operated valve and be connected with the upper chamber in downward film evaporator housing by the road, described downward film evaporator housing bottom is provided with downward film evaporator tube side and goes out pipe, the sidewall of described transformer body bottom is provided with into cold oil valve, described tube side go out pipe by the road with enter cold oil valve and be connected, the sidewall on described downward film evaporator lower chambers top is provided with downward film evaporator refrigerant exit, the sidewall of downward film evaporator bottom is provided with the import of downward film evaporator refrigerant, described downward film evaporator refrigerant exit is by the road through refrigerant compressor, condenser and choke valve are communicated with the import of downward film evaporator refrigerant, described refrigerant compressor is Refrigerating Compressor with Inverter.
Further, in downward film evaporator housing upper chamber, be provided with oil level inductive probe, oil level inductive probe upper end is connected with the oil level inductor that stretches out upper chamber, described transformer body is provided with main transformer oil temperature sensor, described tube side go out pipe by the road with enter on the connecting line of cold oil valve to be also provided with frequency conversion oil pump.
Further, described orifice plate comprises plate body, and described plate body is provided with for inserting the through hole of film supplying tube, and described plate body perimembranous and downward film evaporator shell inner surface fit.
Further, described condenser is air-cooled cooler condenser or water condenser.
Further, described in there is intelligent frequency-conversion function main transformer falling film type heat-exchanger rig also comprise control module, described control module is electrically connected at oil level inductor, temperature sensor, Refrigerating Compressor with Inverter, frequency conversion oil pump, go out deep fat electromagnetically operated valve.
Compared with prior art, the utlity model has following beneficial effect: it is cooling that the utility model utilization has deep fat safe and reliable, that utilize downward film evaporator to carry out in main transformer, cooling effectiveness is high, equipment volume is little, few by oil mass, safeguard less, overall operation economic dispatch huge advantage, can greatly reduce copper, the iron loss of operation main transformer, extend main transformer useful life, improve main transformer overload ability and Short Circuit withstand current capacity, the more safe operation of powerful guarantee main transformer.
Accompanying drawing explanation
Fig. 1 is the main transformer falling film type heat-exchanger rig main-process stream schematic diagram of the utility model embodiment;
Fig. 2 is the transformer oil stream cooling recirculation system schematic diagram of the utility model embodiment;
Fig. 3 is the coolant circulating system schematic diagram of the utility model embodiment;
Fig. 4 is the downward film evaporator structure principle chart of the utility model embodiment;
Fig. 5 be the utility model embodiment downward film evaporator in film supplying tube structure chart;
Fig. 6 is the downward film evaporator aperture plate structure chart of the utility model embodiment;
Fig. 7 is the vertical view of Fig. 6 of the utility model embodiment.
Fig. 8 is the control system Automatic Control Theory block diagram of the utility model embodiment.
In figure: 1-goes out deep fat electromagnetically operated valve, 2-downward film evaporator tube side inlet pipe, 3-downward film evaporator tube side goes out pipe, 4-frequency conversion oil pump inlet valve, 5-frequency conversion oil pump, 6-enters cold oil valve, 7-downward film evaporator, 8--downward film evaporator refrigerant exit, 9-Refrigerating Compressor with Inverter, 10-condenser, 11-cooler blower fan, 12-cooler inlet, 13-cooler outlet, 14-choke valve, the import of 15-downward film evaporator refrigerant, 16-main transformer oil temperature sensor, 17-film supplying tube, 18-downward film evaporator tube side upper end deep fat layer, 19-orifice plate, 20-fuel level sensor probe, 21-fuel level sensor, oil film flow process in 22-film supplying tube, 23--downward film evaporator tube side lower end cold oil layer, refrigerant flow path in 24--downward film evaporator shell side, 25-film supplying tube spout hole, 26-transformer body.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As shown in Fig. 1 ~ 8, a kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function by transformer oil flow cooling recirculation system, (coolant media can be SF to coolant media
6or other applicable medium) circulatory system and composition of the control system.
Transformer oil stream cooling recirculation system mainly comprises: one is built-in with the transformer body 26 of transformer Cooling oil and is arranged at the downward film evaporator 7 of transformer body 26 1 sides, described downward film evaporator 7 comprises the housing of a sealing, in described housing, be provided with coolant media, described housing middle part is vertically arranged with several film supplying tubes 17, described film supplying tube 17 has the tubular body of opening for two ends, described film supplying tube 17 tops are placed in an orifice plate 19, described orifice plate 19 comprises plate body, described plate body is provided with for inserting the through hole of film supplying tube, plate body perimembranous and downward film evaporator shell inner surface fit, orifice plate 19 is divided into upper chamber and lower chambers by housing, the tube wall that each film supplying tube 17 stretches out orifice plate upper end is provided with film supplying tube spout hole 25, the sidewall on described transformer body top is provided with out deep fat electromagnetically operated valve 1, describedly go out deep fat electromagnetically operated valve 1 and be connected with the upper chamber in downward film evaporator housing by the road, described downward film evaporator 7 housing bottoms are provided with downward film evaporator tube side and go out pipe 3, the sidewall of described transformer body 26 bottoms is provided with into cold oil valve, described tube side go out pipe by the road with enter cold oil valve 6 and be connected.Described tube side go out pipe by the road with enter on the connecting line of cold oil valve 6 to be also provided with frequency conversion oil pump 5, described frequency conversion oil pump 5 is also connected with frequency conversion oil pump inlet valve 4.
The operation principle of main transformer falling film type heat-exchanger rig circulation of oil flow system:
Transformer body top go out deep fat electromagnetically operated valve 1, transformer body bottom enter cold oil valve 6, frequency conversion oil pump 5 and frequency conversion oil pump inlet valve 4; Mobile transformer oil starts to circulate in transformer body, and the heat that main transformer winding and iron core produce is taken away, and transformer oil self is heated and becomes heat transformer oil; The heat transformer oil that goes out the 1 control outflow of deep fat electromagnetically operated valve flow to downward film evaporator tube side inlet pipe 2, form downward film evaporator tube side upper end deep fat layer 18, enter the upper end of evaporator tube side part, oil is by the uniform spout hole 25 of film supplying tube 17 top surroundings, along film supplying tube 17 inwalls, form membranaceous flowing down, and with downward film evaporator shell side in refrigerant flow path 24 be enclosed in tube side around the low temperature cold medium of circulation carry out heat exchange, form downward film evaporator tube side lower end cold oil layer 23, its heat is taken away by low temperature refrigerant and self is become cold transformer oil; Cold transformer oil goes out downward film evaporator tube side and goes out after pipe 3, by frequency conversion oil pump 5, through entering 6 dozens, cold oil valve to transformer body 26, winding and iron core is carried out to next round cool cycles.
(coolant media can be SF to coolant media
6or other applicable medium) circulatory system mainly comprises: the sidewall on described downward film evaporator lower chambers top is provided with downward film evaporator refrigerant exit 8, the sidewall of downward film evaporator bottom is provided with downward film evaporator refrigerant import 15, and described downward film evaporator refrigerant exit 8 is communicated with the import of downward film evaporator refrigerant through Refrigerating Compressor with Inverter 9, condenser 10 and choke valve 14 by the road.
The operation principle of coolant circulating system: Refrigerating Compressor with Inverter 9 will become high pressure-temperature cold media gas from downward film evaporator refrigerant exit 8 low pressure refrigerant gas compression out; The high pressure-temperature cold media gas that goes out frequency-changeable compressor 9 enters in condenser 10, is cooled to high temperature refrigerant liquid; From cooler outlet 13 high temperature refrigerant liquid out, through choke valve 14 throttlings, flow to downward film evaporator refrigerant import 15, enter the refrigerant flow path 24 in downward film evaporator shell side; Now because causing part high temperature refrigerant liquid rotating, volume sudden enlargement becomes low pressure refrigerant gas, cooling medium liquid evacuator body becomes in the process of gas can a large amount of heat absorptions and whole cooling medium liquid temperatures are sharply declined, and after the heat of the low temperature refrigerant liquid interior a large amount of heat transformer oil of film supplying tube 17 in absorbing evaporator after temperature declines, all flash to low pressure refrigerant gas; Low pressure refrigerant gas goes out after evaporator refrigerant exit 8, is pumped down to again compression in Refrigerating Compressor with Inverter 9, with this iterative cycles.
In order better to realize the operation to said mechanism, control, the utility model has also designed a kind of main transformer falling film type heat-exchanger rig control system with intelligent frequency-conversion function and has specifically comprised: described main transformer cooling device also comprises control module, in downward film evaporator housing upper chamber, be provided with oil level inductive probe 20, oil level inductive probe 20 upper ends are connected with the oil level inductor 21 that stretches out upper chamber, described transformer body is provided with main transformer oil temperature sensor, described tube side go out pipe by the road with enter on the connecting line of cold oil valve to be also provided with frequency conversion oil pump.Described control module is electrically connected at oil level inductor 21, temperature sensor 16, Refrigerating Compressor with Inverter 9, frequency conversion oil pump 5, deep fat electromagnetically operated valve 1 and enter cold oil valve 6 etc.
Its groundwork principle: the level height that control module can arrange according to the fuel level sensor of downward film evaporator, control out deep fat electromagnetically operated valve, to guarantee that transformer oil forms in the film supplying tube of downward film evaporator, membranaceously along film supplying tube inwall, flow down; Control module can also be according to the program of prior design programming, according to the data that are arranged on main transformer top oil temperature sensor and transmit, automatically control the work of Refrigerating Compressor with Inverter and frequency conversion oil pump, when oil temperature is high, control the increase of exerting oneself of Refrigerating Compressor with Inverter and frequency conversion oil pump, vice versa, remains that main transformer winding and oil flow the optimal value of the temperature difference.
Above-mentioned a kind of main transformer falling film type heat-exchanger rig using method concrete steps with intelligent frequency-conversion function are as follows:
1) open transformer body top go out deep fat electromagnetically operated valve and bottom enter cold oil valve and frequency conversion oil pump, the heat that in transformer body, mobile transformer oil produces main transformer winding and iron core is taken away, transformer oil self is heated and becomes heat transformer oil; The heat transformer oil that goes out the outflow of deep fat solenoid control flow to around the film supplying tube of downward film evaporator, by the uniform spout hole of film supplying tube top surrounding, along film supplying tube inwall, form membranaceous flowing down, and with downward film evaporator housing in be enclosed in film supplying tube around the low temperature cold medium of circulation carry out heat exchange, its heat is taken away by low temperature refrigerant and self is become cold transformer oil;
2) open Refrigerating Compressor with Inverter, Refrigerating Compressor with Inverter will become high pressure-temperature cold media gas from downward film evaporator refrigerant exit low pressure refrigerant gas compression out; Going out Refrigerating Compressor with Inverter high pressure-temperature cold media gas enters and in condenser, is cooled to high temperature refrigerant liquid; From condenser high temperature refrigerant liquid out through choke valve throttling to the housing of downward film evaporator, low temperature refrigerant liquid all flashes to low pressure refrigerant gas after the heat that absorbs a large amount of heat transformer oil, low pressure refrigerant gas is pumped down in Refrigerating Compressor with Inverter and compresses again, with this iterative cycles open cold medium circulatory system;
4) cold transformer oil goes out after the outlet of downward film evaporator tube side, by frequency conversion oil pump, through entering cold oil valve, is beaten to transformer body, and winding and iron core are carried out to next round cool cycles;
5) sensing device of opening control system and control module, the level height that control module can arrange according to the fuel level sensor of downward film evaporator, control out deep fat electromagnetically operated valve, to guarantee that transformer oil forms in the film supplying tube of downward film evaporator, membranaceously along film supplying tube inwall, flow down; Control module is controlled the work of Refrigerating Compressor with Inverter and frequency conversion oil pump automatically according to main transformer oil temperature, when oil temperature is high, control increases of exerting oneself of Refrigerating Compressor with Inverter and frequency conversion oil pump, and vice versa, remains that main transformer winding and oil flow the optimal value of the temperature difference.
The foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. a main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function, it is characterized in that, comprise that one is built-in with the transformer body of transformer Cooling oil and is arranged at the downward film evaporator of transformer body one side, described downward film evaporator comprises the housing of a sealing, in described housing, be provided with coolant media, described housing middle part is vertically arranged with several film supplying tubes, described film supplying tube is the tubular body that two ends have opening, described film supplying tube top is placed in an orifice plate, described orifice plate is divided into upper chamber and lower chambers by housing, the tube wall that described each film supplying tube stretches out orifice plate upper end is provided with film supplying tube spout hole, the sidewall on described transformer body top is provided with out deep fat electromagnetically operated valve, describedly go out deep fat electromagnetically operated valve and be connected with the upper chamber in downward film evaporator housing by the road, described downward film evaporator housing bottom is provided with downward film evaporator tube side and goes out pipe, the sidewall of described transformer body bottom is provided with into cold oil valve, described tube side go out pipe by the road with enter cold oil valve and be connected, the sidewall on described downward film evaporator lower chambers top is provided with downward film evaporator refrigerant exit, the sidewall of downward film evaporator bottom is provided with the import of downward film evaporator refrigerant, described downward film evaporator refrigerant exit is by the road through refrigerant compressor, condenser and choke valve are communicated with the import of downward film evaporator refrigerant, described refrigerant compressor is Refrigerating Compressor with Inverter.
2. a kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function according to claim 1, in downward film evaporator housing upper chamber, be provided with oil level inductive probe, oil level inductive probe upper end is connected with the oil level inductor that stretches out upper chamber, described transformer body is provided with main transformer oil temperature sensor, described tube side go out pipe by the road with enter on the connecting line of cold oil valve to be also provided with frequency conversion oil pump.
3. a kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function according to claim 1, described orifice plate comprises plate body, and described plate body is provided with for inserting the through hole of film supplying tube, and described plate body perimembranous and downward film evaporator shell inner surface fit.
4. a kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function according to claim 1, described condenser is air-cooled cooler condenser or water condenser.
5. a kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function according to claim 2, the described main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function also comprises control module, described control module is electrically connected at oil level inductor, temperature sensor, Refrigerating Compressor with Inverter, frequency conversion oil pump, go out deep fat electromagnetically operated valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420462380.6U CN204010915U (en) | 2014-08-18 | 2014-08-18 | A kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420462380.6U CN204010915U (en) | 2014-08-18 | 2014-08-18 | A kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204010915U true CN204010915U (en) | 2014-12-10 |
Family
ID=52050878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420462380.6U Expired - Fee Related CN204010915U (en) | 2014-08-18 | 2014-08-18 | A kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204010915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157401A (en) * | 2014-08-18 | 2014-11-19 | 国家电网公司 | Main transformer falling film type heat exchanging device with intelligent frequency conversion function and using method thereof |
| WO2022193169A1 (en) * | 2021-03-17 | 2022-09-22 | 上海精智实业股份有限公司 | Heat sink for communication setting |
-
2014
- 2014-08-18 CN CN201420462380.6U patent/CN204010915U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157401A (en) * | 2014-08-18 | 2014-11-19 | 国家电网公司 | Main transformer falling film type heat exchanging device with intelligent frequency conversion function and using method thereof |
| WO2022193169A1 (en) * | 2021-03-17 | 2022-09-22 | 上海精智实业股份有限公司 | Heat sink for communication setting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103390485B (en) | A kind of strong cold transformer of liquid nitrogen and refrigerating method thereof | |
| CN103943317B (en) | SF6Main transformer cooling device and using method with spray oil contact heat-exchanging | |
| CN103779048B (en) | A kind of with SF 6for main transformer heat abstractor and the method for coolant media | |
| CN203746611U (en) | Optimumintelligent control system for temperature difference of winding and oil flow of main transformer | |
| CN103794337B (en) | A kind of with SF6For the main transformer shell and tube heat dissipating method of coolant media | |
| CN204010915U (en) | A kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function | |
| CN204087989U (en) | A kind of main transformer falling film type heat-exchanger rig | |
| CN203706798U (en) | Main transformer tube nest type cooling device with SF6 medium as coolant | |
| CN103824677B (en) | A kind of main transformer winding and oil flow optimum intelligent control system and the control method of the temperature difference | |
| CN104157399B (en) | A kind of main transformer falling film type heat-exchanger rig and using method | |
| CN103779050B (en) | A kind of with SF 6for main transformer coiled heat abstractor and the method for coolant media | |
| CN103779049A (en) | Heat pump type main-transformation heat-exchanging device with SF6 (sulfur hexafluoride) as heat-exchanging medium and heat-exchanging method | |
| CN204010918U (en) | A kind of cooling device for dry-type transformer | |
| CN203706795U (en) | Main transformer cooling device with SF6 medium as coolant | |
| CN204991357U (en) | Energy -saving power transformer heat sink | |
| CN209034252U (en) | A kind of evaporating and cooling electromagnetic blender of forced circulation | |
| CN104157401A (en) | Main transformer falling film type heat exchanging device with intelligent frequency conversion function and using method thereof | |
| CN204045340U (en) | A kind of cooling device of main transformer radiator | |
| CN203706799U (en) | Main transformer plate type cooling device with SF6 medium as coolant | |
| CN104157403A (en) | Cooling device for dry-type transformer and using method | |
| CN203706796U (en) | Main transformer coiled tube type cooling device with SF6 medium as coolant | |
| CN204087988U (en) | One has photovoltaic translation function main transformer falling film type heat-exchanger rig | |
| CN103985510B (en) | SF6the column plate type main transformer chiller directly contacted with oil and using method | |
| CN204045336U (en) | There is the main transformer radiator cooling device of intelligent frequency-conversion function | |
| CN209913696U (en) | High-voltage frequency converter cooling device adopting heat pipe for heat transfer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20180818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |