Air conditioning system and control method thereof

Abstract

The invention provides an air conditioning system and a control method thereof. The air conditioning system comprises a compressor, an evaporator, a fluorine pump, a first liquid storage device, a multi-channel heat exchanger, a heat tube condenser, a refrigeration condenser, a second valve, a second throttling device, a first throttling device, a first valve and a temperature control device. A bypass valve is connected to the compressor in parallel. A refrigeration valve and a heat tube valve are arranged at an outlet of the evaporator. The first valve is connected with the first throttling device and the refrigeration condenser. The temperature control device can control opening or closing of the first valve, the refrigeration valve, the heat tube valve, the second valve and the bypass valve and regulate the opening degree of the bypass valve and the flow of the fluorine pump according to environment temperature. According to the air conditioning system, on the premise of meeting the condition that the cold output of the product is matched with heat loads, outdoor natural cold resources can be fully utilized to the maximum degree for a machine room which operates in all seasons, so that energy consumption of the product is lowered, and energy conservation and emission reduction of the product are achieved.

Description

technical field [0001] The present invention relates to the technical field of air conditioning, in particular to an air conditioning system and a control method thereof. Background technique [0002] With the digital construction of the information industry and the rapid development of intelligent home appliances, the number of computer rooms and base stations has increased rapidly. According to statistics, the energy consumption of air conditioners in computer rooms and base stations accounts for more than 40% of the total energy consumption. Due to the large sensible heat load of the data center and the enclosure The structure is closed, and it operates around the clock throughout the year. In the season when the indoor temperature is lower than the outdoor temperature, the conventional air-conditioning system cannot use the outdoor cold source, and the compression refrigeration system still needs to continue to operate. Relatively speaking, this causes To avoid unnecessa...

AI Technical Summary

Problems solved by technology

[0002] With the digital construction of the information industry and the rapid development of intelligent home appliances, the number of computer rooms and base stations has increased rapidly. According to statistics, the energy consumption of air conditioners in computer rooms and base stations accounts for more than 40% of the total energy consumption. Due to the large sensible heat load of the data center and the enclosure The structure is closed, and it operates around the clock throughout the year. In the season when the indoor temperature is lower than the outdoor temperature, the conventional air-conditioning system cannot use the outdoor cold source, and the compression refrigeration system still needs to continue to operate. Relatively speaking, this causes To avoid unnecessary waste of energy, and for the air conditioning system, there are still reliability issues such as low-temperature start-up, lubrication, and energy regulation; The method of transporting heat at low cost or providing cooling to the indoor side by temperature difference has become the latest development direction in this field, such as the fresh air system currently used, but this device cannot ensure indoor air quality, that is, it cannot prevent outdoor dust, moisture, etc. If it enters the room, it is easy to cause damage to electronic equipment such as servers. Although the ordinary air-air heat exchange system can ensure the quality of indoor air, it requires a huge heat exchange area for the computer room objects with large heat load and high temperature uniformity requirements. To overcome the disadvantages of low heat transfer efficiency of gas-gas heat exchangers, thereby reducing the marketing efforts of products, which is not conducive to market competition of products

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