Adsorption and absorption coupling refrigerating appts.

Abstract

An adsorption-absorption coupled refrigerating device is composed of adsorber, condenser and evaporator. A valve is mounted to pipeline between adsorber and condenser. Said adsorber and evaporator are jacketed unit in the form of casing. The heat exchanger is installed in the jacket of adsorber. Cooling medium is in the jacket of evaporator. Its advantages are simple structure, no need of rectifying unit, the working pressure close to ordinary pressure, low cost and high refrigerating efficiency.

Description

technical field [0001] The present invention relates to a refrigeration device, and more specifically relates to a device that utilizes thermal energy such as solar energy, industrial waste heat, etc. to drive and lower the local temperature below the ambient temperature, such as a refrigeration device for refrigerators, freezers, freezers, air conditioners, etc. Background technique [0002] Refrigeration devices can be divided into adsorption refrigeration devices and absorption refrigeration devices. The so-called adsorption refrigeration is to use the continuous desorption and adsorption of gas on the solid surface to realize refrigeration, which is mainly composed of an adsorber (regenerator), an evaporator, and a condenser; , mainly composed of absorber, re-riser, fractionator, evaporator and condenser. [0003] An important indicator of the performance of the adsorbent used in the adsorption refrigeration device is the effective adsorption capacity. The effective ad...

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Problems solved by technology

[0004] Existing adsorption refrigeration devices and absorption refrigeration devices have made great progress compared with traditional electric compression refrigeration devices, and can directly use thermal energy, such as solar energy, industrial waste heat and other thermal energy, but there are still the following disadvantages: 1. Common The most common adsorption refrigeration devices are water-zeolite refrigeration devices and ammonia-zeolite refrigeration devices. When working, the devices are in high vacuum and high pressure operating states. The common absorption refrigeration device is ammonia absorption refrigeration device, which is in high pressure state when working. Therefore, higher requirements are put forward for the refrigeration device, resulting in complex refrigeration device, high device cost and high maintenance cost; 2. The choice of working medium for adsorption refrigeration device is limited to single-component substances, with small effective adsorption capacity, small cooling capacity and low refrigeration efficiency

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