Secondary cooling system of bulb cross-flow hydrogenerator

A water turbine generator and secondary cooling technology, which is applied in the direction of cooling/ventilation devices, electrical components, electromechanical devices, etc., can solve the problem of increased number of shutdowns, high maintenance costs of air coolers, easy fouling of air coolers, Blockage and other problems, to achieve the effect of convenient maintenance and operation, considerable economic benefits, and convenient operation

Inactive Publication Date: 2014-02-12
TIANJIN TIRNFR HEAVY HYDROELECTRIC FRCILITY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the tubular unit on the river with poor water quality adopts the primary cooling method, the air cooler is prone to fouling, clogging and other faults, and the daily maintenance cost of the air cooler is high. The number of shutdowns due to failures such as pipeline systems has increased

Method used

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  • Secondary cooling system of bulb cross-flow hydrogenerator
  • Secondary cooling system of bulb cross-flow hydrogenerator

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Embodiment Construction

[0021] like figure 1 , 2 As shown, the present invention provides a secondary cooling system for bulb tubular hydroelectric generators. The cold water in the air cooler 1 is used to perform primary air circulation heat exchange on the hot air generated by generator loss. After heat exchange, the air The hot water produced by the cooler 1 and the bearing oil cooler is sent to the cooling jacket 2 of the unit bubble head through the water diversion ring pipe 14. The water diversion ring pipe 14 includes a cold water ring pipe and a hot water ring pipe, and the river water in the flow channel The hot water in the cooling jacket 2 is subjected to secondary water circulation heat exchange, and the heat is taken away by the river water, and then the cold water is injected back into the bearing oil cooler through butterfly valve 6, centrifugal water pump 7, check valve 8, water diversion pipe and other equipment, As a result, the electric motor is cooled by circulation.

[0022] Fu...

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PUM

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Abstract

The invention provides a secondary cooling system of a bulb cross-flow hydrogenerator. The secondary cooling system is characterized in that primary wind path circulating heat exchange is carried out on hot air generated by consumption of the hydrogenerator by means of cold water in an air cooler, hot water generated through the air cooler and a bearing oil cooler after heat exchange is sent to a cooling sleeve of a unit bulb head through a water diversion annular tube, secondary water channel circulating heat exchange is carried out on the hot water in the cooling sleeve by means of river water in a flow channel, heat is taken away through the river water, then cold water is injected to the bearing oil cooler through a butterfly valve, a centrifugal water pump, a check valve, a water conduit and other devices, and therefore circulating cooling is carried out on a motor.

Description

technical field [0001] The invention belongs to the technical field of generator cooling, and in particular relates to a secondary cooling system of a bulb tubular hydroelectric generator. Background technique [0002] The primary cooling method is the conventional cooling method of the bulb tubular hydro-generator (hereinafter referred to as "bulb motor"), which takes heat away through the heat exchange of the air cooler. The cooling water comes from the water supply system (river water) of the unit, and passes through the air After the cooler, it is discharged into the river. This cooling method is not limited by the capacity of the unit, and it is widely used in the bulb motor of Qingshui Power Station by taking advantage of good natural conditions. When the tubular unit on the river with poor water quality adopts the primary cooling method, the air cooler is prone to fouling, clogging and other faults, and the daily maintenance cost of the air cooler is high. At the sam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/00H02K9/19
Inventor 陈晨
Owner TIANJIN TIRNFR HEAVY HYDROELECTRIC FRCILITY CO LTD
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