CN104008856B - A kind of main transformer oil conductance is to microcirculation device and using method - Google Patents
A kind of main transformer oil conductance is to microcirculation device and using method Download PDFInfo
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- CN104008856B CN104008856B CN201410191231.5A CN201410191231A CN104008856B CN 104008856 B CN104008856 B CN 104008856B CN 201410191231 A CN201410191231 A CN 201410191231A CN 104008856 B CN104008856 B CN 104008856B
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- iron core
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- 230000004089 microcirculation Effects 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- 238000004804 winding Methods 0.000 claims abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 33
- 230000004087 circulation Effects 0.000 claims abstract description 14
- 230000008676 import Effects 0.000 claims abstract description 4
- 238000009529 body temperature measurement Methods 0.000 claims description 14
- 239000012141 concentrate Substances 0.000 claims description 5
- 230000002040 relaxant effect Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007921 spray Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The present invention relates to a kind of main transformer oil conductance to microcirculation device and using method thereof, comprise a main transformer body and be arranged at radiator and the using method thereof of main transformer body both sides, in described main transformer body, the below of winding and iron core is provided with oily conductance to jet pipe, two side, described main transformer body top is provided with delivery valve, delivery valve is connected with the import of the radiator of both sides respectively by the road, radiator outlet is connected to jet pipe with oily conductance through return line, described return line is provided with inlet valve and frequency conversion micro circulation pump, described frequency conversion micro circulation pump drives oil circulation, described oily conductance to jet pipe towards a side of winding and iron core all be provided with oil outlet, oil conductance seals to nozzle-end. the present invention has overcome the shortcoming of existing main transformer circulation of oil flow mode, slowly spray by frequency conversion oil pump control aperture, main transformer winding, iron core are concentrated cooling, to strengthen cooling effect, avoid the generation of turbulent flow and bubble simultaneously, effectively improved cooling effectiveness and security performance.
Description
Technical field
The present invention relates to a kind of main transformer oil conductance to microcirculation device and using method.
Background technology
Main transformer is in running, due to the effect of 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 major accident of blast, therefore must circulate cooling winding and iron core by the transformer oil being full of in main transformer, and the heat that transformer oil is taken away carries out heat exchange by heat abstractor, cooled cold oil stream enters main transformer body again and carries out cooling. tradition main transformer circulation of oil flow mode is divided into by these 2 kinds of the cold and hot free convection mode of the oil stream temperature difference and the strong oily endless form of oil-immersed pump. the cold and hot free convection mode of the oil stream temperature difference, weak effect, makes under equal conditions, main transformer copper iron loss is high, operation conditions is poor, and device fabrication volume is large, with shortcomings such as oil mass are many. although the strong oily endless form of main transformer oil-immersed pump makes oil circulate good cooling results, but because its rotating speed is high, non-adjustable, cause oily flowing pressure high, flow velocity, flow is large, the easy turbulization of circulation of oil flow and bubble, the high voltage of these bubbles in main transformer, under the environment of highfield, can cause bubble bridging discharge fault, even burn the major accident of main transformer, and turbulent flow also can have a negative impact to main transformer inside, such as turbulent flow can be rolled main transformer bottom fine impurities, turbulent flow can be impacted winding and main transformer lead joint etc., these all may cause fault, even lead to major accident, moreover because existing its rotating speed of use main transformer oil-immersed pump is non-adjustable, can only stop by urgency, suddenly open some groups of oil-immersed pumps and tackle the cooling requirement of circulation of oil flow of main transformer different load and oil temperature section, thereby cause oil-immersed pump easy to wear, energy consumption is high, noise is large, and overhaul of the equipments workload is large, many defects such as the life-span is short. in main transformer actual motion, except the only large load in the short time, high oil temperature state, most run durations do not need the oil stream of high flow rate, large flow, only need the circulation of oil stream unhurried current can meet the hydronic needs of main transformer winding iron core.
Summary of the invention
High, non-adjustable in order to overcome the strong oily endless form rotating speed of existing transformer oil pump, cause oily flowing pressure high, flow velocity, flow are large, the easy turbulization of circulation of oil flow and bubble, thereby cause gassing bridging discharge fault under the environment of highfield, even burn the major accident of main transformer.
The present invention's the first specific embodiments is: a kind of main transformer oil conductance is to microcirculation device, comprise a main transformer body and be arranged at the radiator of main transformer body both sides, in described main transformer body, be provided with winding and iron core, in described main transformer body, the below of winding and iron core is provided with oily conductance to jet pipe, two side, described main transformer body top is provided with delivery valve, described delivery valve is connected with the import of the radiator of both sides respectively by the road, described radiator outlet is connected to jet pipe with oily conductance through return line, described return line is provided with inlet valve and frequency conversion micro circulation pump, described frequency conversion micro circulation pump drives oil circulation, described oily conductance is evenly provided with oil outlet to jet pipe towards a side of winding and iron core, oil conductance seals to nozzle-end.
Further, described oily conductance is U-shaped or annular and is laid in winding and all sides of iron core to jet pipe.
Further, described main transformer body is provided with oil temperature temperature measurement on-line device, and main transformer body side is provided with control cabinet, in described control cabinet, is provided with control module, and described oil temperature temperature measurement on-line device and control module are electrically connected.
Further, described control module and frequency conversion micro circulation pump are electrically connected.
The present invention's the second specific embodiments is: a kind of main transformer oil conductance, to microcirculation device using method, comprises that a kind of main transformer oil conductance as claimed in claim 4, to microcirculation device, is characterized in that, comprises the following steps:
1) inlet valve of unlatching main transformer top delivery valve and bottom;
2) open frequency conversion micro circulation pump, make oil start circulation, what be arranged on that oily conductance in main transformer starts to releive to jet pipe concentrates the cold transformer oil of ejection to main transformer winding and iron core;
3) open control module, the oil temperature that control module can be transmitted in real time according to oil temperature temperature measurement on-line device, automatically control exerting oneself of frequency conversion micro circulation pump, in the time that oil temperature raises, control module control frequency conversion micro circulation pump increases oily flow velocity and internal circulating load, vice versa, because control module is to the frequency conversion micro circulation pump the highest oil stream flow speed value of also having limited, ensure oil stream all the time relaxing, the microcirculation mode of low speed moves.
Compared with prior art, the present invention has following beneficial effect: the art of this patent has overcome the shortcoming of existing main transformer circulation of oil flow mode, slowly spray by frequency conversion oil pump control aperture, concentrate cooling to main transformer winding, iron core, to strengthen cooling effect, having avoided the generation of turbulent flow and bubble simultaneously, effectively improved cooling effectiveness and security performance, is the revolutionary character innovation of main transformer circulation of oil flow mode.
Brief description of the drawings
Fig. 1 is that main transformer winding, the iron core of the embodiment of the present invention is immersed in schematic diagram cooling in transformer oil.
Fig. 2 be the embodiment of the present invention be arranged on the oily conductance in main transformer winding, iron core bottom to jet pipe releive oil spout concentrate cooling, and the microcirculation schematic flow sheet of oil stream in main transformer.
Fig. 3 is that the embodiment of the present invention is arranged on the cross-sectional plan view of main transformer winding, iron core two bottom sides oil conductance to jet pipe.
Fig. 4 is that the oily conductance of the main transformer of the embodiment of the present invention is to microcirculation operation principle schematic diagram.
Fig. 5 is embodiment of the present invention control module operation principle block diagram.
In figure: 1-delivery valve; The import of 2-radiator; 3-radiator; 4-radiator outlet; 5-frequency conversion micro circulation pump inlet valve; 6-frequency conversion micro circulation pump; 7-inlet valve; 8-oil temperature temperature measurement on-line device; 9-oil conductance is to jet pipe, 10-main transformer body.
Detailed description of the invention
The present invention will be further described in detail below.
As Fig. 1 ~ 5 are depicted as a kind of main transformer oil conductance to microcirculation device, comprise frequency conversion micro circulation pump 6, be arranged on the oily conductance of winding in main transformer body 10, iron core two bottom sides to jet pipe 9, the delivery valve 1 on main transformer body top, the inlet valve 7 of main transformer body bottom, transformer oil, oil outside main transformer body stream tube connector, radiator 3, and the composition such as oil temperature temperature measurement on-line device 8 and control module.
Main transformer oil conductance comprises frequency conversion micro circulation pump 6 to microcirculation device, frequency conversion micro circulation pump 6 pumps into cold oil stream in main transformer body, cold oil flows after cooling main transformer winding, the heat of iron core due to electromagnetic action generation, from main transformer top delivery valve 1 inflow radiator 3, after oil stream is cooled in radiator 3, again by frequency conversion micro circulation pump 6 pump into main transformer carry out cooling, so iterative cycles. Frequency conversion micro circulation pump 6 is electrically connected at control module.
Main transformer oil conductance mainly comprises that to microcirculation device the oily conductance being arranged in main transformer body is to jet pipe 9, oil conductance is insulating materials manufacture to jet pipe 9, and be arranged on main transformer winding, all sides of iron core bottom, oil conductance is to jet pipe 9 one end sealings, the other end is connected with main transformer inlet valve 7 by insulation connecting leg, oil conductance leans on main transformer winding to jet pipe 9, one side of iron core is evenly drilled with some little oil outlets, cold oil stream slowly sprays by these apertures, to main transformer winding, iron core leads concentrated cooling, to strengthen cooling effect, risen by the oil stream after winding and iron core heating, diffusion, and flow out by main transformer top delivery valve 1, in radiator 3 to main transformer body, be cooled, cooled oil stream enters oily conductance in main transformer to jet pipe 9 by frequency conversion micro circulation pump 6 again, carry out cooling to winding and iron core, whole oily streaming system forms oily conductance to microcirculation.
Control module comprises oil temperature temperature measurement on-line device 8, and oil temperature temperature measurement on-line device 8 is arranged on main transformer body 10 tops, can detect in real time the oil temperature in main transformer, and online oil temperature data are passed to control module. Oil temperature temperature measurement on-line device 8 is electrically connected at control module.
The oil temperature that control module can be transmitted in real time according to oil temperature temperature measurement on-line device, by the program of prior design programming, controls exerting oneself of frequency conversion micro circulation pump 6 automatically, in the time that oil temperature raises, exerting oneself of control module control frequency conversion micro circulation pump 6, increases oily flow velocity and internal circulating load, and vice versa. Due to the high electric field environment in the inner place of main transformer, the oil stream too fast meeting of flow velocity turbulization and bubble in main transformer, may cause the fault of bubble bridging electric discharge, even burn the major accident of main transformer, therefore control module is to the frequency conversion micro circulation pump 6 the highest oil stream flow speed value of also having limited, ensure oil stream all the time relaxing, the microcirculation mode of low speed moves, control module is electrically connected at frequency conversion micro circulation pump 6 and oil temperature temperature measurement on-line device 8, control module can be PLC, or other computer processor.
Above-mentioned main transformer oil conductance to the using method of microcirculation device mainly by concentrating guiding oil spout to carry out cooling main transformer winding and the iron core heat due to electricity and magnetic action generation in the mode of releiving in cold transformer oil with frequency conversion micro circulation pump 6 and oily conductance to jet pipe 9, heated oil stream stream in main transformer rises and spreads, flow out main transformer cooling to the radiator 3 being installed on outside main transformer body, oil stream after being cooled is got back to cooling winding and iron core in main transformer by frequency conversion micro circulation pump 6 and oily conductance to jet pipe 9 again, so constantly iterative cycles, its concrete using method step is as follows: the inlet valve 7 of 1) opening main transformer top delivery valve 1 and bottom, 2) inlet valve of unlatching frequency conversion micro circulation pump 6, 3) open frequency conversion micro circulation pump 6, now oily stream starts circulation, and what be arranged on that oily conductance in main transformer starts to releive to jet pipe 9 concentrates the cold transformer oil of ejection to main transformer winding and iron core guiding, 4) open control module, the oil temperature that control module can be transmitted in real time according to oil temperature temperature measurement on-line device 8, automatically control exerting oneself of frequency conversion micro circulation pump 6, in the time that oil temperature raises, control module control frequency conversion micro circulation pump 6 increases oily flow velocity and internal circulating load, vice versa, because control module is to the frequency conversion micro circulation pump 6 the highest oil stream flow speed value of also having limited, ensure oil stream all the time relaxing, the guiding microcirculation mode of low speed moves, 5) the oily conductance that is arranged on main transformer winding, iron core two bottom sides is to jet pipe 9, cold oil stream is constantly concentrated to slowly ejection to main transformer winding, iron core, ensure the cooling effect of main transformer winding and iron core, all the time move in the microcirculation mode of mitigation, low speed owing to automatically being controlled frequency conversion micro circulation pump 6 by control module, can not cause turbulent flow and bubble, the safe operation of powerful guarantee main transformer.
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 (4)
1. a main transformer oil conductance is to microcirculation device, it is characterized in that: comprise a main transformer body and be arranged at the radiator of main transformer body both sides, in described main transformer body, be provided with winding and iron core, in described main transformer body, the below of winding and iron core is provided with oily conductance to jet pipe, two side, described main transformer body top is provided with delivery valve, described delivery valve is connected with the import of the radiator of both sides respectively by the road, described radiator outlet is connected to jet pipe with oily conductance through return line, described return line is provided with inlet valve and frequency conversion micro circulation pump, described frequency conversion micro circulation pump drives oil circulation, described oily conductance is evenly provided with oil outlet to jet pipe towards a side of winding and iron core, oil conductance seals to nozzle-end, described main transformer body is provided with oil temperature temperature measurement on-line device, main transformer body side is provided with control cabinet, in described control cabinet, be provided with control module, described oil temperature temperature measurement on-line device and control module are electrically connected.
2. a kind of main transformer oil conductance according to claim 1 is to microcirculation device, described oily conductance to jet pipe take the shape of the letter U or annular and be laid in winding and iron core week side.
3. a kind of main transformer oil conductance according to claim 2 is to microcirculation device, and described control module and frequency conversion micro circulation pump are electrically connected.
4. main transformer oil conductance, to a microcirculation device using method, comprises that a kind of main transformer oil conductance as claimed in claim 3, to microcirculation device, is characterized in that, comprises the following steps:
1) inlet valve of unlatching main transformer top delivery valve and bottom;
2) open frequency conversion micro circulation pump, make oil start circulation, what be arranged on that oily conductance in main transformer starts to releive to jet pipe concentrates the cold transformer oil of ejection to main transformer winding and iron core;
3) open control module, the oil temperature that control module can be transmitted in real time according to oil temperature temperature measurement on-line device, automatically control exerting oneself of frequency conversion micro circulation pump, in the time that oil temperature raises, control module control frequency conversion micro circulation pump increases oily flow velocity and internal circulating load, vice versa, because control module is to the frequency conversion micro circulation pump the highest oil stream flow speed value of also having limited, ensure oil stream all the time relaxing, the microcirculation mode of low speed moves.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191231.5A CN104008856B (en) | 2014-05-08 | 2014-05-08 | A kind of main transformer oil conductance is to microcirculation device and using method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410191231.5A CN104008856B (en) | 2014-05-08 | 2014-05-08 | A kind of main transformer oil conductance is to microcirculation device and using method |
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| Publication Number | Publication Date |
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| CN104008856A CN104008856A (en) | 2014-08-27 |
| CN104008856B true CN104008856B (en) | 2016-05-04 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1099366A (en) * | 1963-11-04 | 1968-01-17 | Marston Excelsior Ltd | A method of cooling transformers and apparatus for performing the method |
| CN202771907U (en) * | 2012-09-07 | 2013-03-06 | 泰州海田电气制造有限公司 | Oil cooling transformer |
| CN203026301U (en) * | 2012-11-28 | 2013-06-26 | 合肥瑞博电气有限公司 | Pressure regulating and oil feeding system |
| WO2013171058A1 (en) * | 2012-05-16 | 2013-11-21 | Siemens Aktiengesellschaft | Utilizing waste heat in a transformor or an inductor coil with an ongf radiator |
| CN103677008A (en) * | 2013-12-03 | 2014-03-26 | 柳州市五环水暖器材经营部 | Oil circulation air-cooling control system of transformer of submerged arc furnace |
| CN203562268U (en) * | 2013-11-21 | 2014-04-23 | 重庆大学 | Circulation reactor for transformer oil online purifying |
| CN103779048A (en) * | 2014-02-19 | 2014-05-07 | 国家电网公司 | Main-transformation heat-dissipating device with SF6 (sulfur hexafluoride) as refrigerant medium and heat-dissipating method |
| CN203812686U (en) * | 2014-05-08 | 2014-09-03 | 国家电网公司 | Oil flow guiding micro-circulating device for main transformer |
-
2014
- 2014-05-08 CN CN201410191231.5A patent/CN104008856B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1099366A (en) * | 1963-11-04 | 1968-01-17 | Marston Excelsior Ltd | A method of cooling transformers and apparatus for performing the method |
| WO2013171058A1 (en) * | 2012-05-16 | 2013-11-21 | Siemens Aktiengesellschaft | Utilizing waste heat in a transformor or an inductor coil with an ongf radiator |
| CN202771907U (en) * | 2012-09-07 | 2013-03-06 | 泰州海田电气制造有限公司 | Oil cooling transformer |
| CN203026301U (en) * | 2012-11-28 | 2013-06-26 | 合肥瑞博电气有限公司 | Pressure regulating and oil feeding system |
| CN203562268U (en) * | 2013-11-21 | 2014-04-23 | 重庆大学 | Circulation reactor for transformer oil online purifying |
| CN103677008A (en) * | 2013-12-03 | 2014-03-26 | 柳州市五环水暖器材经营部 | Oil circulation air-cooling control system of transformer of submerged arc furnace |
| CN103779048A (en) * | 2014-02-19 | 2014-05-07 | 国家电网公司 | Main-transformation heat-dissipating device with SF6 (sulfur hexafluoride) as refrigerant medium and heat-dissipating method |
| CN203812686U (en) * | 2014-05-08 | 2014-09-03 | 国家电网公司 | Oil flow guiding micro-circulating device for main transformer |
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| CN104008856A (en) | 2014-08-27 |
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