Circulating water waste heat recovery device and technology of evaporation unit

Abstract

The invention discloses a circulating water waste heat recovery device and technology of an evaporation unit. The circulating water waste heat recovery device comprises a multi-effect falling film evaporator, steam condensate water of the multi-effect falling film evaporator enters an absorption heat pump as a driving heat source, circulating hot water of a circulating hot water tank enters the absorption heat pump through a pipeline, and a circulating hot water pump is arranged on the pipeline; circulating cold water of the absorption heat pump enters a circulating cold water tank through a circulating cold water outlet pipe, the circulating cold water of the circulating cold water tank enters a water cooler through a circulating cold water pipeline, a circulating cold water pump is arranged on the circulating cold water pipeline, and circulating water return water of the water cooler enters the circulating hot water tank through a circulating hot water pipe; a stock solution enters the absorption heat pump through a stock solution inlet, the absorption heat pump is connected with the multi-effect falling film evaporator through a stock solution pipe, and the multi-effect fallingfilm evaporator is connected with the water cooler through a gas pipeline. The device has the advantages that water resource evaporation waste is effectively reduced, the efficiency of the evaporatoris improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the field of mechanical devices, in particular to a waste heat recovery device for circulating water of an evaporator unit and a waste heat recovery process that can effectively reduce evaporation waste of water resources, improve evaporator efficiency, and reduce production costs. Background technique [0002] The circulating water of the traditional evaporator unit uses a cooling tower to cool down, and the heat in the circulating water is directly discharged into the atmosphere, resulting in a waste of heat, because the cooling causes a large amount of circulating water to evaporate, which is a waste of heat source and waste of water resources. In summer, the temperature is high, and the cooling effect is greatly affected. Contents of the invention [0003] The purpose of the invention is to overcome the waste of heat and waste of water resources in the prior art, and the cooling effect is greatly affected by the ambient t...

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Problems solved by technology

[0003] The purpose of the invention is to overcome the waste of heat and waste of water resources in the prior art, and the cooling effect is greatly affected by the ambient temperature, and to provide a method that can effectively reduce the waste of water resources evaporation, improve the efficiency of the evaporator, and reduce production costs. The waste heat recovery device and waste heat recovery process of the circulating water of the evaporator unit

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