A heat collection-radiation device and its refrigeration system

Abstract

The invention belongs to the technical field of renewable energy and air conditioners and discloses a heat collection-radiation device and a refrigeration system thereof. The device comprises a support and a heat collection-radiation unit, the heat collection-radiation unit comprises a heat collection part and a radiation heat part, the heat collection part comprises a reflection mirror and a heatcollection pipe, and the reflection mirror reflects sunlight heat and accumulates the sunlight heat on the heat collection pipe for heating; the radiation heat part comprises a cooling pipe and selective radiation thin film, the selective radiation thin film transmits an electromagnetic wave, the electromagnetic wave penetrates through an atmospheric window, heat is radiated to the outer space, and the temperature in the cooling pipe is lowered. The invention further discloses the refrigeration system. The system comprises the heat collection-radiation device, an absorption-type refrigerationdevice and a cold water tank, the absorption-type refrigeration device and the cold water tank are connected with the two ends of the heat collection-radiation device respectively, during daytime, after heating of the heat collection-radiation device, the refrigeration device is driven to conduct refrigeration, and at night, the heat collection-radiation device is used for radiating heat to the outer space for refrigeration. By means of the heat collection-radiation device, the defects are overcome that sunlight cannot be used at night, and the refrigeration effect through space radiation during daytime is poor. The refrigeration process of near-zero energy consumption is achieved.

Description

technical field [0001] The invention belongs to the technical field of renewable energy and air conditioning, and more specifically relates to a heat collection-radiation device and a refrigeration system thereof. Background technique [0002] At present, vigorously developing new energy and renewable energy is the main goal of my country's current and future development. In my country's total social energy consumption, building energy consumption accounts for about 1 / 3, while air conditioning energy consumption in building energy consumption is as high as 42%. , then, air-conditioning energy consumption accounts for 14% of my country's total energy consumption. Therefore, the energy-saving research of air-conditioning system has very important economic benefits and social significance. [0003] The vast space contains infinite energy. The sun is a heat source with a temperature as high as 5800K, while the outer space is a perfect cold source with a temperature of only 3K. T...

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Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a heat collection-radiation device and its refrigeration system, wherein the structural design and layout of the key components of the heat collection-radiation device, the heat collection part and the radiation heat part , and through the cooperative connection with the auxiliary component cooling device, on the one hand, make full use of the energy of the heat collecting and radiating device to absorb sunlight when the sunlight is sufficient, thereby driving the absorption cooling device to cool; on the other hand, considering that the sunlight is not enough at night In a sufficient situation, the principle of using the selective radiation film to emit electromagnetic waves to radiate heat into outer space is cleverly used to reduce the temperature of the liquid medium in the cooling tube in the heat collection-radiation device, thus making up for the inability to use sunlight at night and the cooling effect of space radiation during the day. Poor defect, realize the refrigeration process of near zero energy consumption, thus solve the technical problems of high energy consumption and poor effect of the refrigeration system

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