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Heating device and heating method utilizing oil temperature of transformer of new energy station

A technology for heating devices and transformers, which can be used in household heating, application, and household heating, etc. It can solve the problems of transformer waste heat dissipation and waste, and achieve the effects of reducing emissions, simple structure, and avoiding thermal pollution.

Pending Publication Date: 2020-10-27
NORTHWEST BRANCH OF CHINA DATANG CORP SCI & TECH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first purpose of the present invention is to provide a heating device that utilizes the oil temperature of transformers in new energy stations, which solves the problem of waste heat dissipation of existing transformers

Method used

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  • Heating device and heating method utilizing oil temperature of transformer of new energy station
  • Heating device and heating method utilizing oil temperature of transformer of new energy station

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Effect test

Embodiment

[0038] Taking a 180MVA on-load tap oil-immersed water-cooled transformer installed in an underground 220kV substation as an example, the maximum heat dissipation load borne by the oil-water heat exchanger of a single transformer is 550kW, and the flow rate of the water pump on the cooling water side is 98m 3 / h, the cooling water inlet temperature is 52°C, and the outlet water temperature is 57.4°C. The cooling water pipe is copper alloy pipe with a nominal diameter of 200mm. It can be seen from the above that under normal circumstances, the waste heat generated by the operation of the transformer is sufficient to meet the needs of the winter heating load of the substation of this scale. Set the temperature of the outlet water after heat exchange to 65°C. When the heat exchange is used for domestic hot water and winter heating, the hot water after heat exchange can be directly used for room heating and domestic hot water.

[0039] The present invention is a heating device that...

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Abstract

The invention discloses a heating device and a heating method utilizing oil temperature of a transformer of a new energy station. The heating device comprise the transformer, wherein the transformer is connected with a heat exchanger through an oil pipe to form a closed loop, the heat exchanger is connected with a water tank through a water pipe to form a closed loop, a temperature sensor a is arranged in the water tank, a temperature sensor b is arranged in the heat exchanger, and the temperature sensor a and the temperature sensor b are connected with a controller through wires. According tothe heating device utilizing the oil temperature of the transformer of the new energy station, the transformer is connected through the oil pipe, waste heat in the transformer is led out and exchanges heat with liquid water in the heat exchanger, on one hand, the waste heat of the transformer is fully utilized, the energy utilization rate is increased, meanwhile, heat emission is reduced, thermalpollution is avoided, and the structure is simple; according to the heating method, the transformer can be effectively used for preheating, the heating temperature is adjusted, and the good practicalvalue is achieved.

Description

technical field [0001] The invention belongs to the technical field of waste heat utilization equipment, and specifically relates to a heating device utilizing the oil temperature of a transformer in a new energy station, and also relates to a heating method using the oil temperature of a transformer in a new energy station. Background technique [0002] The transformer mainly includes two parts, the iron core and the coil, which will generate heat due to loss during operation, which makes the temperature of the insulating oil inside the transformer continue to rise. Oil-immersed transformers are mostly A-level insulation, and their maximum heat-resistant temperature is allowed to be 105°C. The winding temperature of the transformer during operation is 10-15°C higher than the average temperature of the upper layer oil, that is, when the temperature of the upper layer oil reaches 85-95°C during operation. , the winding temperature has reached about 105°C. If it is operated at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D15/00F24D19/00F24D19/10F28D7/08
CPCF24D15/00F24D19/00F24D19/1006F28D7/08
Inventor 周渊王艺博邓桥赵丰
Owner NORTHWEST BRANCH OF CHINA DATANG CORP SCI & TECH RES INST
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