Forced circulation evaporation cooling device of hydro-generator stator busbar

Abstract

Provided is a forced circulation evaporation cooling device of a hydro-generator stator busbar. The stator busbar (12), a condenser (21), a liquid storage tank (30), a cooling device (32), a pump (1), a pressure stabilizing tank (2), a flowmeter (6), a liquid dividing pipe (8), a gas collecting pipe (16), a liquid supply main pipe (3), a gas outlet pipe (18), a liquid return main pipe (27), a total liquid return main pipe (37), a by-pass pipe (4) and an electro-liquid separation joint are connected to form an evaporative cooling circulation loop. An evaporative cooling medium in the loop is driven by a pump. The stator busbar includes one or a plurality of busbar branches, an inlet and an outlet of each busbar branch are respectively connected with the liquid dividing pipe and the gas collecting pipe through the electro-liquid separation joint and an insulation guide pipe, the busbar branches are connected in parallel, and the stator busbar is connected with the pump, the condenser, the cooling device and the like to form the independent evaporative cooling circulation loop. The forced circulation evaporation cooling device enables a plurality of busbars to be combined to form a unified parallel-connection pipeline and builds the independent evaporative cooling circulation loop.

Description

technical field [0001] The invention relates to an evaporative cooling device for a stator bus bar of a hydroelectric generator. Background technique [0002] Since 2010, my country has gradually started to build hydroelectric power stations with a single unit capacity of one million kilowatts. According to the basic law of motor design, the larger the capacity of a single machine, the more it needs to rely on safe and efficient cooling technology. The development trend of the unit capacity of one million kilowatts makes the cooling problem of the motor more prominent. In the generator, the stator bus bar is an extremely important component, and its cooling effect is closely related to the safe operation of the motor. The traditional cooling methods of the stator busbar include air cooling and water cooling. These two cooling methods are difficult to meet the more prominent cooling and reliability requirements of the busbar at the same time. The main reason is that the coo...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art that the circulating power is small, and it is difficult to establish a unified self-circulating evaporative cooling cycle for a large number of busbars with too long length or complex shape, and to provide a forced Circulating evaporative cooling unit

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