A liquid air refrigeration power generation device for a data center and its working method

Abstract

The invention discloses a liquid air refrigeration power generation device for a data center, and a working method. The liquid air working medium refrigeration power generation device for the data center comprises an ultralow-temperature liquid storage tank, a high-pressure and ultralow-temperature liquid pump, a high-pressure and ultralow-temperature pipeline, a jet flow drainage apparatus, a low-temperature heat exchanger, a low-temperature and high-pressure gas pipeline, a gas mixing drainage apparatus, a temperature-rising, pressure-increasing and entropy-compensating heat exchanger consisting of a gas expansion section, a medium-temperature heat exchanger and a gas contraction section, a normal-temperature working gas pipeline, a gas turbine input valve, a working gas path, a gas turbine, a generator, an exhaust gas path, a gas turbine output valve, a gas return pipeline, a refrigeration water return input pipeline, a low-and-medium-temperature heat exchanger connection pipeline, a refrigeration water return output pipeline, an after-gas discharging opening, a liquid gas injection opening, an overhaul short circuit pipeline, an overhaul short circuit gas valve and a drainage gas return pipeline. According to the liquid air refrigeration power generation device for the data center, the refrigeration unit purchase cost and the backup generator set purchase cost can be reduced; due to modes of reduction of the power consumption of a refrigeration unit in the data center, auto-using power generated by the low-temperature generator set and the like, the power consumption of the data center is greatly reduced.

Description

technical field [0001] The invention belongs to the field of liquid air power generation, and in particular relates to a data center liquid air cooling power generation device and a working method. Background technique [0002] At present, data centers have a large number of servers and network equipment, which consume a lot of energy. The power consumption of a data center can sometimes reach millions of kilowatts. The total power consumption of all data centers in the country is equivalent to the entire power consumption of Tianjin. Data center equipment emits a lot of heat during operation, requiring a high-power cooling system to maintain an appropriate ambient temperature. For a long time, air-conditioning and refrigeration systems have been used in combination with natural cold source cooling. All the heat is moved out of the data center and "thrown" into the atmosphere and the natural environment. Different places often use lower-cost means to achieve "throwing" "Th...

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Problems solved by technology

For every 10,000 kilowatts of energy consumption in the data center, the recovered hot water can be used for heating 100,000 square meters of residential buildings. In reality, a large amount of recovered hot water cannot be used in many cases.

[0004] At present, most of the existing low-temperature heat source power generation technologies recover heat from heat pumps to generate high-temperature hot water above 80°C, and then use low-temperature generators to convert it into electrical energy. The efficiency of power generation is very low, and the efficiency of converting heat energy into electrical energy is only 1-5%. no use value

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