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Main-transformation coiled-tube-type heat-dissipating device with SF6 (sulfur hexafluoride) as refrigerant medium and heat-dissipating method

A heat dissipation device and coil-type technology, applied in the direction of transformer/inductor cooling, etc., can solve the problems of low cooling efficiency of the main transformer, large manufacturing volume, high operating cost, etc. high cost effect

Active Publication Date: 2014-05-07
STATE GRID CORP OF CHINA +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional main transformer cooling methods mainly include forced air cooling, natural air cooling and water cooling. Although water cooling is economical and efficient, if cooling water leaks into the main transformer in the cooling system, even if it is a small leak, It will lead to serious consequences; due to the low heat enthalpy of the air, the cooling efficiency of the main transformer is low, the manufacturing volume of the main transformer and radiator equipment is large, the oil consumption is large, the operating cost is high, and the maintenance amount is large, etc.

Method used

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  • Main-transformation coiled-tube-type heat-dissipating device with SF6 (sulfur hexafluoride) as refrigerant medium and heat-dissipating method
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  • Main-transformation coiled-tube-type heat-dissipating device with SF6 (sulfur hexafluoride) as refrigerant medium and heat-dissipating method

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Embodiment Construction

[0018] Such as Figure 1~3 shown, a SF 6 The main transformer coil type cooling device is a cold medium, and the transformer oil flow cooling circulation system and SF 6 Composed of refrigerant circulation system, the transformer oil flow cooling circulation system includes main transformer body A, oil pump 11 and coil type SF 6 The tube side 14 of the evaporator 7, the main transformer body A is filled with transformer oil 19 for cooling the coil and the iron core 18, and the upper part of the main transformer body A is provided with a cold oil inlet and a cold oil inlet for inputting cold transformer oil. Oil inlet valve 17, the lower part of the main transformer body A is provided with a thermal oil outlet for outputting thermal transformer oil and a thermal oil outlet valve 10, and the oil pump 11 transports thermal transformer oil 19 from the thermal oil outlet to the coil type SF 6 The tube side 14 inlet of the evaporator 7, the thermal transformer oil is SF 6 SF sur...

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Abstract

The invention relates to a main-transformation coiled-tube-type heat-dissipating device with SF6 (sulfur hexafluoride) as a refrigerant medium and a heat-dissipating method. The main-transformation coiled-tube-type heat-dissipating device consists of a transformer oil flow cooling and circulating system and an SF6 refrigerant circulating system, wherein the transformer oil flow cooling and circulating system comprises a main-transformation body, an oil pump, and a tube pass of a coiled-tube-type SF6 evaporator; the main-transformation body is filled with transformer oil; a cold oil inlet and a cold oil inlet valve are arranged at the upper part of the main-transformation body; a hot oil outlet and a hot oil outlet valve are arranged at the lower part of the main-transformation body; the oil pump conveys hot transformer oil from the hot oil outlet to the tube pass of the coiled-tube-type SF6 evaporator; the hot transformer oil is cooled by an SF6 refrigerant inside the SF6 refrigerant circulating system and around the tube pass, and flows from an outlet of the tube pass of the coiled-tube-type SF6 evaporator to the cold oil inlet. The main-transformation coiled-tube-type heat-dissipating device has huge advantages of safety, reliability, high cooling efficiency, small equipment volume, low oil consumption, less maintenance, economical overall operation and the like, and is a revolutionary innovation of a main-transformation cooling way.

Description

technical field [0001] The present invention relates to a kind of SF 6 The utility model relates to a main transformer coil type cooling device and a method for cooling medium. Background technique [0002] During the operation of the main transformer, due to the action of electricity and magnetism, its coil and iron core will generate heat. If the heat cannot be taken away in time, it will cause serious accidents such as burning or even explosion of the main transformer. The transformer oil flows to cool the coil and iron core, and the heat taken away by the transformer oil flow needs to be exchanged through the cooling device, and the cooled cold oil flow enters the main transformer body for cooling. Traditional main transformer cooling methods mainly include forced air cooling, natural air cooling and water cooling. Although water cooling is economical and efficient, if cooling water leaks into the main transformer in the cooling system, even if it is a small leak, It w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/18
Inventor 林晓铭周玮宋仕江林挺伟林荣辉郑孝章叶强林舒妍张艳杰余海泳江桂英连文杰
Owner STATE GRID CORP OF CHINA
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