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一、前言 许多工业过程,如石油化工、纺织、食品等行业,有大量废热排放出,这类废热是可以通过换热器或热泵装置回收重新加以利用。用换热器回收废热产生的热源温位低于废热温位,工业应用范围较窄。利用热泵如升温型吸收式热泵(吸收式热变换器)来回收废热,可产生温位较高的热能,其应用范围较广,且吸收式热泵主要以废热能驱动,不必消耗高品位能量,因此作为废热回收装置是吸引人的。
I. Introduction Many industrial processes, such as petrochemical, textile, food and other industries, have a large amount of waste heat discharged. Such waste heat can be recycled and reused through heat exchangers or heat pump units. Heat exchanger with waste heat recovery heat source temperature is lower than the waste heat temperature, narrow industrial applications. The use of heat pumps such as temperature-absorbing absorption heat pump (absorption heat exchanger) to recover waste heat, can produce higher temperature heat energy, its wide range of applications, and absorption heat pump mainly driven by waste heat, do not have to consume high-grade energy, Therefore, it is attractive as a waste heat recovery device.