Hot-wet air waste heat recovery process

Abstract

The invention discloses a hot-wet air waste heat recovery process. The hot-wet air waste heat recovery process comprises the following steps that to-be-treated hot-wet air enters a first heat exchanger, the hot-wet air is subjected to heat exchange with cold water in the first heat exchanger, heat in the hot-wet air enters the cold water of the first heat exchanger, and the temperature of the coldwater is increased; the heated cold water enters the cold water side of a heat pump through a first buffer water tank, the cold water is cooled, heat is transferred to hot water in the hot water sideof the heat pump, and then the heat is returned to the first heat exchanger; and the hot water on the hot water side of the heat pump enters a second heat exchanger to carry out heat exchange with acold medium of a boundary area, heat in the hot water is transferred to the cold medium, and the cold medium is discharged after being heated. According to the hot-wet air waste heat recovery process,the purpose is to recover the waste heat of the hot-wet air, the recovery heat is used for heating the cold medium, so that a novel process for saving energy and reducing consumption is formed; and the process is concise, the operation is convenient, the heat recovery efficiency is high, the operation cost is low, the equipment investment is small, the occupied area is saved, the operation can becarried out stably for a long time, and the application range is wide.

Description

technical field [0001] The invention belongs to the technical field of waste heat recovery, and in particular relates to a process for recovering waste heat from hot and humid air. Background technique [0002] With the further strengthening of national energy conservation and emission reduction policies, improving the comprehensive utilization efficiency of energy has attracted people's attention. Petrochemical, coal chemical, metallurgy, pharmaceutical, printing and dyeing, papermaking, service and other industries will generate a lot of hot and humid air in the process of production and activities. There is a large amount of latent heat in hot and humid air. If it is directly discharged into the atmosphere, it will not only cause a huge waste of energy, but also cause pollution to the environment. [0003] In order to solve the problem of energy waste caused by direct discharge of hot and humid air, the present invention proposes a waste heat recovery process technology ...

AI Technical Summary

Problems solved by technology

There is a large amount of latent heat in hot and humid air. If it is directly discharged into the atmosphere, it will not only cause a huge waste of energy, but also cause pollution to the environment.

[0003] In order to solve the problem of energy waste caused by the direct discharge of hot and humid air, the present invention proposes a waste heat recovery technology of hot and humid air, and constructs an energy-saving and consumption-reducing system

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