CN204045336U - There is the main transformer radiator cooling device of intelligent frequency-conversion function - Google Patents
There is the main transformer radiator cooling device of intelligent frequency-conversion function Download PDFInfo
- Publication number
- CN204045336U CN204045336U CN201420530770.2U CN201420530770U CN204045336U CN 204045336 U CN204045336 U CN 204045336U CN 201420530770 U CN201420530770 U CN 201420530770U CN 204045336 U CN204045336 U CN 204045336U
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- China
- Prior art keywords
- main transformer
- cooling
- radiator
- valve
- dome
- Prior art date
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- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 87
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 12
- 239000003507 refrigerant Substances 0.000 claims abstract description 32
- 239000002826 coolant Substances 0.000 claims abstract description 17
- 230000008676 import Effects 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009183 running Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Transformer Cooling (AREA)
Abstract
The utility model includes the main transformer radiator cooling device of intelligent frequency-conversion function, described oil stream cooling recirculation system be arranged in main transformer for cooling winding, transformer oil in described oil stream cooling recirculation system enters by the delivery valve on main transformer top inlet valve that radiator is cooled through main transformer bottom and to flow out from radiator and enter in main transformer, described cooling dome by radiator cover in cooling dome cavity, and sealing is tight, described cooling dome internal circulation flow has coolant media, the transformer oil flowed in radiator is cooled, described cooling dome is provided with refrigerant inlet valve, cooling dome top is provided with refrigerant exit valve, described refrigerant exit valve connects the import of Refrigerating Compressor with Inverter, the outlet of described Refrigerating Compressor with Inverter connects the import of condenser, the outlet of described condenser connects choke valve import, choke valve outlet connects the refrigerant import of cooling dome bottom.
Description
Technical field
The utility model includes the main transformer radiator cooling device of intelligent frequency-conversion function.
Background technology
Main transformer is in running, electricity and magnetic effect under, its winding and iron core can generate heat, now as not in time heat taken away, break down causing main transformer and even burn the serious accident of blast, the type of cooling of main transformer is that the transformer oil that flowed by main transformer inner loop is to cool winding, enter again in main transformer after self need being carried out heat exchange cooling by radiator by the transformer oil heated after cooling winding and circulating cooling is carried out to winding, the type of cooling of tradition main transformer radiator is dried by fan, the modes such as natural heat dissipation, air at these two kinds of type of cooling environment for use temperature is as refrigerant, cooling effectiveness is very low, the scope that cools is very little, large by such environmental effects, often cause main transformer copper iron loss large, overload and Short Circuit withstand current capacity little, the shortcomings such as the short and safe class of insulation life is not enough.
Utility model content
The purpose of this utility model is for above weak point, provide the main transformer radiator cooling device of intelligent frequency-conversion function, energy is safe, reliable, efficient, Economic regions walks the heat energy that in operation, main transformer produces, not by ambient temperature and climatic influences, greatly can reduce the copper iron loss of main transformer, very big raising main transformer overload capacity and Short Circuit withstand current capacity, increase the service life, the safety of powerful guarantee electric power system, economical operation.
The scheme that the utility model technical solution problem adopts is, a kind of main transformer radiator cooling device having intelligent frequency-conversion function, comprise cooling dome, Refrigerating Compressor with Inverter, condenser, choke valve, oil stream cooling recirculation system, temperature sensor, control module, described oil stream cooling recirculation system be arranged in main transformer for cooling winding, transformer oil in described oil stream cooling recirculation system enters radiator cooling by the delivery valve on main transformer top, enter in main transformer by the inlet valve of main transformer bottom from radiator outflow, described cooling dome by radiator cover in cooling dome cavity, and sealing is tight, described cooling dome internal circulation flow has coolant media, the transformer oil flowed in radiator is cooled, described cooling dome is provided with refrigerant inlet valve, cooling dome top is provided with refrigerant exit valve, described refrigerant exit valve connects the import of Refrigerating Compressor with Inverter, the outlet of described Refrigerating Compressor with Inverter connects the import of condenser, the outlet of described condenser connects choke valve import, choke valve outlet connects the refrigerant import of cooling dome bottom, described temperature sensor is arranged on the top of main transformer, described control module and temperature sensor and Refrigerating Compressor with Inverter are electrically connected.
Further, described control module can be PLC or other computer processor.
Further, described cooling dome is made by insulating material.
Further, described coolant media is SF
6medium.
Further, described condenser is air-cooled or water cooled condenser.
Compared with prior art, the utility model has following beneficial effect: can according to oil temperature in main transformer, exerting oneself of Based Intelligent Control Refrigerating Compressor with Inverter is carried out by nonstick system of control cold compressor electric machine frequency, greatly improve refrigerating efficiency, the urgency of refrigerant compressor is avoided to stop suddenly opening and reducing the drawbacks such as noise, efficiently, energy-conservation, environmental protection, the utility model has safe and reliable, high-efficiency environment friendly, overall operation economic dispatch huge advantage, remain the optimum temperature difference that main transformer winding flows with oil, greatly can reduce the copper running main transformer, iron loss, improve overload and the Short Circuit withstand current capacity of main transformer, extend main transformer useful life, powerful guarantee dry-type transformer safe operation more.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model patent is further illustrated.
Fig. 1 is the main transformer radiator scheme of installation of the utility model embodiment;
Fig. 2 is the main transformer radiator cooling dome scheme of installation of the utility model embodiment;
Fig. 3 is that the main transformer radiator cooling dome of the utility model embodiment installs schematic side view;
Fig. 4 is the A-A cutaway view of Fig. 3;
Fig. 5 is the main transformer radiator cooling device scheme of installation of the utility model embodiment;
Fig. 6 is the cooling device workflow schematic diagram of the main transformer radiator of the utility model embodiment;
Fig. 7 is the cooling device cooling dome side-looking workflow schematic diagram of the main transformer radiator of the utility model embodiment;
Fig. 8 is the control module Automatic Control Theory block diagram of the utility model embodiment.
In figure: 1-inlet valve, 2-cooling dome, 3-outlet valve, 4-Refrigerating Compressor with Inverter, 5-condenser inlet, 6-condenser, 7-cooling blower, 8-condensator outlet, 9-choke valve, 10-temperature sensor, 11-inlet valve, 12-radiator, 13-delivery valve; 14-winding; 15-transformer oil; 16-main transformer; 17-coolant media.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
As shown in Fig. 1 ~ 8, a kind of main transformer radiator cooling device having intelligent frequency-conversion function, comprise cooling dome 2, Refrigerating Compressor with Inverter 4, condenser 6, choke valve 9, oil stream cooling recirculation system, temperature sensor 10, control module, described oil stream cooling recirculation system be arranged in main transformer 16 for cooling winding 14, the transformer oil 15 of flowing in main transformer 16 is to after in main transformer 16, winding 14 cools, self is heated, the delivery valve 13 of heat transformer oil 15 through main transformer 16 top after heating in described oil stream cooling recirculation system enters radiator, heat transformer oil 15 carries out heat exchange by radiator 12 wall and extraneous refrigerant, cold transformer oil 15 after cooled flows out radiator 12 and enters in main transformer 16 by the inlet valve 11 of main transformer 16 bottom, carry out the cool cycles of next round, radiator 12 covers in cooling dome cavity by described cooling dome 2, and sealing is tight, described cooling dome 2 internal circulation flow has coolant media 17, the transformer oil 15 of flowing in radiator 12 is cooled, transformer oil 15 heat being placed in flowing in main transformer radiator 12 in cooling dome 2 is taken away, described cooling dome 2 is provided with refrigerant inlet valve 1, cooling dome top is provided with refrigerant exit valve 3, described refrigerant exit valve 3 connects the import of Refrigerating Compressor with Inverter 4, the outlet of described Refrigerating Compressor with Inverter 4 connects condenser inlet 5, described condensator outlet 8 connects choke valve 9 import, choke valve 9 exports the refrigerant import connecting cooling dome 2 bottom, described temperature sensor 10 is arranged on the top of main transformer 16, described control module and temperature sensor 10 and Refrigerating Compressor with Inverter 4 are electrically connected, real-time oil temperature is also passed to control module by oil temperature in temperature sensor 10 on-line measurement main transformer, control module is measured according to temperature sensor 10 and the online temperature value transmitted, according to the temperature approach pre-set, the work of automatic control Refrigerating Compressor with Inverter 4, when in main transformer 16, oil temperature exceedes more than the set point temperature difference, automatic startup Refrigerating Compressor with Inverter 4 works, oil temperature is higher, control module controls Refrigerating Compressor with Inverter 4 frequency and raises, increase the refrigerating capacity of refrigerant compressor 4, vice versa, when in main transformer 16, oil temperature drops to below the set point temperature difference, automatic control stops Refrigerating Compressor with Inverter 4 to work, remain that in main transformer 16, oil temperature is at the chilling temperature operated within range of optimum, greatly improve refrigerating efficiency.
In the present embodiment, described control module can be PLC or other computer processor.
In the present embodiment, described cooling dome 2 is made by insulating material, or other material be applicable to makes.
In the present embodiment, described coolant media 17 is SF
6medium also can be the coolant media that other has insulation, breath combustion and has higher thermal enthalpy.
In the present embodiment, described condenser 6 is air-cooled or water cooled condenser.
Specific implementation process:
Transformer oil 15 self is heated after cooling main transformer winding 14, because deep fat density is low, so heat transformer oil rises to main transformer top, and flow out main transformer delivery valve 13, enter main transformer radiator 12, heat transformer oil is in radiator 12, and the refrigerant be enclosed in around radiator by radiator wall cooled; Open main transformer inlet valve 11, by the cooled transformer oil of refrigerant in radiator, because cold oil density ratio deep fat density is large, therefore the oily stream in radiator flow to bottom radiator from radiator top, after flowing out radiator outlet, the inlet valve through main transformer bottom enters in main transformer body and carries out cool cycles.
The heat of the transformer oil being placed in flowing in main transformer radiator 12 in cooling dome 2 is taken away by the coolant media of cooling dome 2 Inner eycle, cool transformer oil 15, self evaporation endothermic of coolant media 17 becomes low pressure refrigerant gas, low pressure refrigerant gas after heat absorption is gone out from cooling dome 2 top refrigerant exit valve 3, sucked by Refrigerating Compressor with Inverter 4 import, the coolant media gas of high pressure-temperature is compressed in Refrigerating Compressor with Inverter, this HTHP cold media gas exports from Refrigerating Compressor with Inverter 4 and extrudes, condenser 6 is entered to condenser inlet 5, HTHP cold media gas is condensed into high temperature refrigerant liquid in condenser 6, condenser 6 can be air cooling way, also can be water-cooling pattern, the utility model is described for air-cooled, after high temperature refrigerant liquid discharge condensator outlet 8, flow to choke valve 9, coolant media is reduced pressure after throttling by choke valve 9 and enters in cooling dome 2 by cooling dome refrigerant inlet valve 1, cooling medium liquid body after decompression throttling divides and is evaporated to gas, cooling medium liquid evacuator body can absorb amount of heat, thus make coolant media cooling enter in cooling dome 2, owing to entering the sudden enlargement of cooling dome volume, cooling medium liquid evacuator body is made to absorb amount of heat, the transformer oil being opposite to the wherein interior flowing of main transformer radiator 12 cools, low pressure refrigerant gas after heat absorption evaporation is gone out to be sucked by Refrigerating Compressor with Inverter 4 by cooling dome upper outlet valve 3 again and is carried out the kind of refrigeration cycle of next round.
Control module is measured according to temperature sensor 10 and the online temperature value transmitted, according to the temperature approach pre-set, when oil temperature in main transformer exceedes more than the set point temperature difference, automatic startup Refrigerating Compressor with Inverter 4 works, when oil temperature in main transformer reaches below the set point temperature difference, automatic stopping Refrigerating Compressor with Inverter 4 works, start and stop in setting in the temperature range of refrigerant compressor work, when in main transformer, oil temperature is higher, the electric machine frequency that control module controls Refrigerating Compressor with Inverter 4 automatically raises, to increase the refrigerating capacity of refrigerant compressor 4, vice versa, remain that in main transformer, oil temperature remains on optimum chilling temperature operated within range, and greatly improve refrigerating efficiency, the urgency of refrigerant compressor 4 is avoided to stop suddenly opening and reducing the drawbacks such as noise, energy-conserving and environment-protective.
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; be understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. one kind has the main transformer radiator cooling device of intelligent frequency-conversion function, comprise cooling dome, the Refrigerating Compressor with Inverter that FREQUENCY CONTROL work is exerted oneself can be automatically controlled, condenser, choke valve, oil stream cooling recirculation system, temperature sensor, control module, it is characterized in that: described oil stream cooling recirculation system be arranged in main transformer for cooling winding, transformer oil in described oil stream cooling recirculation system enters radiator cooling by the delivery valve on main transformer top, enter in main transformer by the inlet valve of main transformer bottom from radiator outflow, described cooling dome by radiator cover in cooling dome cavity, and sealing is tight, described cooling dome internal circulation flow has coolant media, the transformer oil flowed in radiator is cooled, described cooling dome is provided with refrigerant inlet valve, cooling dome top is provided with refrigerant exit valve, described refrigerant exit valve connects the import of Refrigerating Compressor with Inverter, the outlet of described Refrigerating Compressor with Inverter connects the import of condenser, the outlet of described condenser connects choke valve import, choke valve outlet connects the refrigerant import of cooling dome bottom, described temperature sensor is arranged on the top of main transformer, described control module and temperature sensor and Refrigerating Compressor with Inverter are electrically connected.
2. a kind of main transformer radiator cooling device having intelligent frequency-conversion function according to claim 1, is characterized in that: described control module can be PLC or other computer processor.
3. a kind of main transformer radiator cooling device having intelligent frequency-conversion function according to claim 1, is characterized in that: described cooling dome is made by insulating material.
4. a kind of main transformer radiator cooling device having intelligent frequency-conversion function according to claim 1, is characterized in that: described coolant media is SF
6medium.
5. a kind of main transformer radiator cooling device having intelligent frequency-conversion function according to claim 1, is characterized in that: described condenser is air-cooled or water cooled condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530770.2U CN204045336U (en) | 2014-09-16 | 2014-09-16 | There is the main transformer radiator cooling device of intelligent frequency-conversion function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530770.2U CN204045336U (en) | 2014-09-16 | 2014-09-16 | There is the main transformer radiator cooling device of intelligent frequency-conversion function |
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| Publication Number | Publication Date |
|---|---|
| CN204045336U true CN204045336U (en) | 2014-12-24 |
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| CN201420530770.2U Expired - Fee Related CN204045336U (en) | 2014-09-16 | 2014-09-16 | There is the main transformer radiator cooling device of intelligent frequency-conversion function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183362A (en) * | 2014-09-16 | 2014-12-03 | 国家电网公司 | Main transformer radiator cooling device with intelligent frequency conversion function and use method thereof |
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2014
- 2014-09-16 CN CN201420530770.2U patent/CN204045336U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183362A (en) * | 2014-09-16 | 2014-12-03 | 国家电网公司 | Main transformer radiator cooling device with intelligent frequency conversion function and use method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20210916 |