LNG-cold-energy-recycling distributed energy system for data room

Abstract

The invention relates to an LNG-cold-energy-recycling distributed energy system for a data room. The LNG-cold-energy-recycling distributed energy system comprises a cold energy recycling unit, a dataroom cooling unit, a cold energy storage unit, a compressed-air cooling unit, a gas-fired power generation unit, a high-temperature flue gas refrigerating unit and a low-temperature flue gas heat supply unit and is characterized in that cold energy recycling unit is used for producing gasified natural gas and extracting the cold energy of liquefied natural gas; the data room cooling unit is used for providing the cold energy for the data room to cool the equipment cabinets of the data room; the cold energy storage unit is used for storing the cold energy to serve as the standby cold source ofthe equipment cabinets of the data room; the compressed-air cooling unit is used for compressing air and using the cold energy to cool the compressed air; the gas-fired power generation unit is used for combusting the gasified natural gas to generate power; the cold energy recycling unit, the compressed-air cooling unit and the gas-fired power generation unit are serially connected; the cold energy recycling unit is connected with the data room cooling unit and the cold energy storage unit; the high-temperature flue gas refrigerating unit is used for producing chilled water for cooling the equipment cabinets of the data room; the low-temperature flue gas heat supply unit is used for producing domestic hot water; the gas-fired power generation unit is connected with the high-temperature flue gas refrigerating unit, and the high-temperature flue gas refrigerating unit is connected with the low-temperature flue gas heat supply unit.

Description

technical field [0001] The invention relates to the field of conversion and utilization of cold energy, in particular to a distributed energy system for recovering LNG cold energy used in a data computer room. Background technique [0002] As one of the world's three major energy pillars, natural gas accounts for more than 24% of the energy structure. Due to its environmental protection and safety, its consumption has risen sharply in recent years. In order to better deal with the transportation and storage of natural gas, LNG (Liquefied Natural Gas, liquefied natural gas) has developed rapidly. In the process of transporting LNG from the receiving station to the outside, the LNG needs to be gasified first, and the cold energy in the LNG is released simultaneously with the gasification, which can reach about 830-860kJ / kg. Cold energy refers to the low-temperature heat energy that exists naturally in a normal temperature environment. In fact, it refers to the energy that can...

AI Technical Summary

Problems solved by technology

Cold energy refers to the low-temperature heat energy that exists naturally in a normal temperature environment. In fact, it refers to the energy that can be obtained by using a certain temperature difference under natural conditions; or air loss, lack of recycling

[0003] The patent with the application number CN201610230461.7 discloses a process and device for generating electricity using natural gas pressure energy and recovering cold energy. This patent uses relatively simple cold energy and does not form a stepped energy use.

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