Refrigeration system and method for utilizing natural cold sources in shifting seasons

Abstract

The present invention provides a refrigeration system for seasonally utilizing natural cold sources. The refrigeration system includes a first heat exchanger, a second heat exchanger, a compression refrigeration unit, an air conditioner terminal device, a natural cooling heat exchanger, and a buried pipe heat exchanger. and the controller. The natural cooling heat exchanger obtains the natural cold source, and stores the natural cold source in the soil through the buried tube heat exchanger installed in the soil. While meeting the cooling needs of this season, the natural cold source is stored and used in different seasons, effectively It greatly reduces the cooling energy consumption in the absence of natural cooling sources; through the control subsystem to monitor and control the operation status of each equipment, select the optimal operation mode for the refrigeration system, and further reduce the energy consumption of the refrigeration system. The present invention couples the vapor compression refrigeration with the seasonal use of the natural cold source, effectively solving the problem of insufficient cooling capacity when the natural cold source is used seasonally, improves the comprehensive refrigeration effect of the refrigeration system, and effectively reduces the refrigeration energy. consumption.

Description

technical field [0001] The invention relates to the technical system field of refrigeration and air conditioning, in particular to a refrigeration system and a refrigeration method for utilizing natural cold sources in shifting seasons. Background technique [0002] Nowadays, the demand for cooling capacity is increasing, such as the cooling consumption of industrial plants, data equipment, etc., especially in the high temperature season. The existing cooling capacity is almost realized by electric energy. For example, high-density heating objects have cooling needs throughout the year, and the energy consumption of air conditioners is huge. In 2015, the energy consumption of China's data centers was as high as 100 billion kW h, which is equivalent to the annual power consumption of the Three Gorges Hydropower Station. It is estimated that by 2021, the energy consumption of my country's data centers will further reach 250 billion kW·h. Data center air-conditioning accounts f...

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Problems solved by technology

[0005] The present invention provides a refrigeration system that utilizes natural cold sources in shifting seasons, which can store cold energy in winter and use it for cooling in summer, aiming to solve the problem of high energy consumption for cooling of high-density heat-generating objects

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