Multiple-effect class-one absorption heat pump

Abstract

The invention provides a multiple-effect class-one absorption heat pump, which belongs to the technical fields of refrigeration and heat pumps. The multiple-effect class-one absorption heat pump is mainly composed of two generators, two absorbers, a condenser, two evaporators, two throttle valves, two solution pumps, two solution heat exchangers and a steam separation chamber, wherein the first absorber, the first solution pump, the first solution heat exchanger and the first generator are communicated with solution; the first generator, the second generator, the first throttle valve, the first evaporator and the first absorber are communicated with a refrigerant medium; the second generator, the first absorber, the second absorber, the second solution pump, the second solution heat exchanger and the steam separation chamber are communicated with the solution; the second generator, the steam separation chamber, the condenser, the second evaporator and the second absorber are communicated with the refrigerant medium; the first generator utilizes drive heat, the second absorber and the condenser supply heat, and the first evaporator and the second evaporator utilize waste heat, thus forming the multiple-effect class-one absorption heat pump.

Description

Technical field: [0001] The invention belongs to the technical field of low-temperature waste heat utilization and heat pump / refrigeration. Background technique: [0002] The first type of absorption heat pump uses the temperature difference between the driving heat medium and the heated medium as the driving force. When the driving temperature difference is large, a double-effect or multi-effect process should be used to provide high-temperature driving heat utilization; in any heat transfer process In any heat transfer process, the waste of temperature difference in any heat transfer link will reduce the utilization rate of heat energy. That is to say, whether it is the transfer of condensation heat or the transfer of absorption heat, the heat transfer link of any heat load should be in place in one step, so that Only then can a reasonable thermodynamic perfection be obtained. [0003] In the traditional multi-effect cycle utilizing condensation heat and absorption heat, ...

AI Technical Summary

Problems solved by technology

[0003] In the traditional multi-effect cycle utilizing condensation heat and absorption heat, the transfer of the absorption heat for heating the solution relies on the intermediate circulation medium, which results in three temperature differences required for the transfer of the absorption heat - the transfer of the absorption heat to the intermediate circulation medium The temperature difference of the intermediate circulating medium, the temperature change of the intermediate circulating medium, and the temperature difference of the intermediate circulating medium transferring the absorption heat to the heated solution, and the consumption of circulating work; in terms of equipment and working fluid, two sets of heat exchange tube bundles, a circulating pump and intermediate circulating medium

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