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Sleeve type evaporative cooling transformer with oil-tank

An evaporative cooling and transformer technology, applied in the field of transformers, can solve the problems that the cooling effect is not as good as evaporative cooling, the structure is complex, etc., to achieve the effect of facilitating manufacture, operation and maintenance, simplifying the insulation structure, and reducing the difficulty

Inactive Publication Date: 2006-08-02
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cooling method used by this type of transformer is liquid cooling, and its cooling effect is not as good as evaporative cooling, and it is necessary to install a pressure equalizer and a pump in the medium circulation pipeline, and the structure is relatively complicated.

Method used

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  • Sleeve type evaporative cooling transformer with oil-tank
  • Sleeve type evaporative cooling transformer with oil-tank
  • Sleeve type evaporative cooling transformer with oil-tank

Examples

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Embodiment Construction

[0040] The evaporative cooling transformer of the present invention consists of an iron core 10, a coil 20, an oil tank 30, a sleeve 40, an intake pipe 60, a condenser 70, a liquid return pipe 80, an upper conduit 90, a lower conduit 100, an insulating gas 110, a pump 130 and a core cooling channel 140 compositions.

[0041] One of the specific implementations of the airtight sleeve type evaporative cooling transformer with oil tank of the present invention is as follows: figure 1 As shown, the transformer is a single-phase transformer. The coil 20 on each phase of the transformer is placed in the same sleeve 40, and a cooling medium 50 is added to the sleeve 40. The cooling medium 50 can be an evaporative cooling medium or an evaporative cooling medium. Mixed medium of medium and other liquids, the upper part of the sleeve 40 is connected with the lower part of the upper conduit 90, the upper part of the upper conduit 90 is connected with the lower part of the intake pipe 60...

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PUM

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Abstract

This invention is a kind of sleeve type evaporation cooling transformer, which is consisted with mandrel, electric coil, oil tank, sleeve, air inletting tube, condenser, liquid returning tube, upper pipe, lower pipe, insulating gas, cooling medium in the bottom of the oil tank, pump and iron core cooling channel. The characteristics are that the electric coil is arranged inside of the sleeve added with cooling medium, the upper side of the sleeve can be covered or not, or setting a blowhole. The upper side of the oil tank is connected with the lower side of the air inletting tube, upper side of the air inletting tube is connected with condenser, the bottom (or the side face) of the condenser is connected with liquid returning tube, lower side of the liquid returning tube is connected with the bottom of the sleeve, cooling medium dripping in the bottom of the oil tank is connected with cooling medium in the liquid returning tube through pump. The oil tank is filled with insulating gas such as SF6 gas, mixture of SF6 gas and N2, substitute of SF6 gas, nitrogen and carbon compound gas.

Description

technical field [0001] The invention relates to a transformer, in particular to a sleeve-type evaporative cooling transformer with a metal oil tank. Background technique [0002] At present, the cooling methods used by most transformers are air cooling, water cooling, oil cooling, etc. As the capacity continues to increase, the disadvantages of the above cooling methods are becoming more and more obvious. Evaporative cooling technology (also known as phase change cooling technology, boiling heat exchange technology, etc.) is a major improvement on the above cooling methods, which can make the transformer The operating temperature is greatly reduced, and the economy and safety are significantly improved. [0003] The evaporative cooling power transformer proposed by the utility model patent with the application number 99237863.x and the new evaporative cooling transformer proposed by the utility model patent with the application number 98200236.x both use fluorine compounds ...

Claims

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Application Information

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IPC IPC(8): H01F27/08F28D5/00
Inventor 张国强郭卉顾国彪
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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