Absorption waste heat recovery apparatus

Abstract

An absorption waste-heat recovery system includes a generator for directly receiving a heat medium fluid containing waste heat for recovering heat therefrom and concentrating a solution having an absorbent dissolved therein and generating steam, a condenser capable of condensing steam, an evaporator for evaporating the condensed water, and an absorber for receiving the concentrated solution. The absorption waste-heat recovery system includes a high temperature generator for directly receiving a heat medium fluid, a low temperature generator for re-concentrating the concentrated solution after reduction of its temperature by heat recovering means in the system by using the steam from the high temperature generator as heat source, an auxiliary generator for introducing the heat medium fluid after its heat recovery at the high temperature generator and again recovering heat therefrom, A double-effect cycle using the high temperature generator and the low temperature generator and a single-effect cycle using the auxiliary generator share at least the evaporator and the absorber out of the condenser, the evaporator and the absorber.

Description

technical field [0001] The invention relates to absorption waste heat recovery equipment, which is equipped with a regenerator, a condenser, an evaporator and an absorber. The regenerator conducts waste heat recovery after introducing a heat medium fluid with waste heat, and concentrates the absorbent solution at the same time. Generating steam, the condenser can condense the steam generated by the regenerator, the evaporator has the function of evaporating the condensed water condensed through the condenser, and the absorber has the function of absorbing the steam from the evaporator to dilute the steam passing through the regenerator The function of concentrated concentrated solution. Background technique [0002] In the above-mentioned absorption waste heat recovery equipment, an absorption type cold and warm water generating device is equipped. The generating device is equipped with a regenerator, a condenser, an evaporator and an absorber. The regenerator condenses the ...

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the stored heat of the exhaust gas cannot be fully recovered

Especially in the low-temperature regenerator, since the concentrated solution from the auxiliary regenerator is heated by steam from the high-temperature regenerator, in the case of changes in the amount and temperature of the exhaust gas, at least It is very difficult to control the balance between the temperature of the heated solution and the temperature of the heating steam in the low temperature regenerator, and has to complicate its control mechanism

If the aforementioned temperature balance breaks down, there is also concern that the output of the heat recovery equipment will decrease due to changes in the pressure relationship

Therefore, it should be considered that there is such a problem that the invention described in the above publication is very difficult to form control conditions due to mutual interference between the above-mentioned high-temperature regenerator and the above-mentioned auxiliary regenerator, so that the control mechanism of the system has to be complex

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