A solar powered co 2 absorption chiller

An absorption refrigerator and solar energy technology, which is applied in the direction of refrigerators, adsorption machines, energy-saving heating/cooling, etc., can solve the problems that restrict the development of refrigeration technology and the strict requirements of compressors, and achieve compact structure, environmental friendliness, and good application foreground effect
CN103776194BActive Publication Date: 2016-12-21TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Publication Date
2016-12-21

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Abstract

A CO2 absorption refrigerator driven by solar energy comprises an absorber, a boosting pump, a solar generator, a pressure reduction element, an evaporator, an absorber and a flow control valve communicated with a connecting pipe between the absorber and the solar generator, wherein the absorber, the boosting pump, the solar generator, the pressure reduction element, the evaporator and the absorber are sequentially connected and form a refrigeration loop, a transmitting element is installed at the upper end of the solar generator, and the evaporator is connected with the absorber. A flowing working medium circulates in the refrigeration loop and is mixed solution composed of CO2 and naphthyridine derivatives. The mixed solution of CO2 and absorbents in the absorber is pressurized through the boosting pump and enters the solar generator; by solar radiation, CO2 is separated from the absorbents and enters the evaporator by pressure reduction of a flow regulator to have refrigeration effect, and the remaining absorbents return to the absorber again; and CO2 absorbs heat and gasified in the evaporator, returns to the absorber again and is dissolved in the absorbents. CO2 is adopted to serve as the working medium of the absorption refrigerator, and the absorption refrigerator is free of toxicity and explosiveness, is high in specific power and environmentally friendly and saves energy.
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Description

technical field

[0001] The invention relates to a refrigerator in the technical field of refrigeration, in particular to a solar-powered CO 2 Absorption refrigerator. technical background

[0002] In nature, CO 2 It is one of the most abundant chemical substances, is part of the atmosphere, and is also contained in some natural gas or associated gas in oil fields and in ores formed by carbonates. CO in the atmosphere 2 0.03~0.04wt%, the total amount is about 2.75Γ—10 12 tons, mainly produced by the combustion of carbonaceous substances and animal metabolism. Therefore, CO 2 It is a natural working substance that will not affect the environment, will not burn and explode, and is extremely easy to obtain. Currently CO 2 The research on refrigerants is mainly concentrated in vapor compression refrigerators. As refrigerants such as Freon gradually withdraw from the historical stage, CO 2 As an excellent refrigerant, it has gradually become a research hotspot in vapor comp...

Claims

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