Cooling system of generating unit

Abstract

The invention relates to a cooling system of a generating unit. The generating unit comprises two generators, wherein each generator comprises an engine and a motor connected to the engine. The cooling system comprises two hydrogen coolers which convey hydrogen through housings of the two generators, respectively and are connected to hydrogen driers through pipelines, respectively; outlet ends of the two hydrogen driers are connected to inlet ends of the two hydrogen coolers through pipelines, respectively; cooling water inlet pipes of the two hydrogen coolers communicate with each other through a first water pipe, water return pipes of the two hydrogen coolers communicate with each other through a second water pipe, and two stop valves are arranged on each of the first water pipe and the second water pipe. According to the cooling system of the generating unit provided by the invention, by separately communicating the water inlet pipes of the two hydrogen coolers with the water outlet pipes of the two hydrogen coolers, cooling water of the two hydrogen coolers are for later use of each other, so that the defect of the hydrogen driers as cooling water cannot be normally supplied when one of the generators stops operating is overcome, normal operation of the hydrogen driers is ensured, the hydrogen dryness is greatly enhanced, and the operating reliability of the generators is enhanced.

Description

technical field [0001] The invention relates to a generator system, in particular to a cooling system for a generator set. Background technique [0002] At present, the use of generators is very common. Large-scale generators often work continuously, and the engine that drives the motor to generate electricity will continue to generate heat. If the heat is not removed in time, it will affect the power generation efficiency, and even cause damage to the engine, resulting in heavy losses. Due to the ideal cooling performance of hydrogen, it is mainly cooled by hydrogen cooler generators at present. [0003] Usually the enterprise will set up two generators to generate electricity in turn, and each generator is equipped with a hydrogen cooler and a hydrogen dryer, and the cooling water is supplied by its corresponding closed cooling water pump. Due to the operation mode, generally only one generator is turned on. Considering economical reasons, the closed cooling water pump of...

AI Technical Summary

Problems solved by technology

[0003] Usually the enterprise will set up two generators to generate electricity in turn, and each generator is equipped with a hydrogen cooler and a hydrogen dryer, and the cooling water is supplied by its corresponding closed cooling water pump. Due to the operation mode, generally only one generator is turned on. Considering economical reasons, the closed cooling water pump of the outage generator is not turned on, so that the hydrogen cooler of the outage generator has no cooling water supply and cannot be put into normal operation

If the hydrogen dryer is not used during shutdown, it will affect the humidity of the hydrogen inside the generator and reduce the insulation of the generator

Therefore, when one of the generators is shut down, in order to put the corresponding hydrogen dryer into normal use, the closed water system needs to be restarted. Starting a large closed water system wastes electricity and increases the amount of operation.

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