Back heating type two-stage thermochemistry adsorption cooling cycle system based on voltage transformation desorption technique

Abstract

The invention relates to a heat-recovery-typed secondary thermal chemisorption refrigeration circulatory system based on pressure-switching desorption, and pertains to the technical field of refrigeration and air-conditioning, wherein, a main reactor outlet is connected with an intermediate control valve inlet, an intermediate control valve outlet is connected with an auxiliary reactor inlet, an auxiliary reactor outlet is connected with an auxiliary control valve inlet, an auxiliary control valve outlet is connected with a condenser inlet, a condenser outlet is connected with a throttle valve inlet, a throttle outlet is connected with an evaporator inlet, an evaporator outlet is connected with a main control valve inlet, and a main control valve outlet is connected with a main reactor inlet. The interior of a main reactor is filled with a high-temperature reaction chemosorbent, the interior of an auxiliary reactor is filled with a medium-temperature chemosorbent, and univariate absorption characteristics of chemosorbents with different reaction temperature ranges are utilized for realizing cooling pressure-switching desorption process of high-temperature reaction absorbents. The heat-recovery-typed secondary thermal chemisorption refrigeration circulatory system of the invention can significantly decrease desorption temperature of the chemosorbent in the thermal chemisorption refrigeration circulatory system and expand the utilization scope of waste heat.

Description

technical field [0001] The invention relates to a system in the field of refrigeration and air conditioning, in particular to a heat recovery type two-stage thermochemical adsorption refrigeration cycle system based on pressure swing desorption technology. Background technique [0002] In recent years, with the increasingly tight energy sources and the gradual increase in air-conditioning energy consumption, saving energy and reducing air-conditioning energy consumption has become a research goal in the field of refrigeration and air-conditioning; in addition, there are a large number of low-grade waste heat (such as waste heat, industrial waste heat etc.) are discharged because they are not properly utilized, resulting in a great waste of energy. Solid adsorption refrigeration technology, as a green refrigeration technology that can effectively utilize solar energy and low-grade waste heat, has become a hot spot in the field of refrigeration and air-conditioning energy-savi...

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Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies of the prior art, to provide a heat recovery type two-stage thermochemical adsorption refrigeration cycle system based on pressure swing desorption technology, which solves the problem of the high desorption temperature of the adsorbent in the traditional thermochemical adsorption refrigeration cycle. , which limits the temperature range of waste heat utilization

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