Method and device for recycling heat energy of compressed air of aerobe fermentation system

Abstract

The invention relates to a method and a device for recycling heat energy of compressed air of an aerobe fermentation system. The device comprises a heat exchange water tank, a plate type heat exchanger, a cooling water heat exchanger, a water remover, an air compressor and an air storage tank, wherein an air outlet of the air compressor is connected with an air inlet of an air runner of the plate type heat exchanger; an air outlet of the air runner of the plate type heat exchanger is connected with an air inlet of a cooling water heat exchanger shell side; an air outlet of the cooling water heat exchanger shell side is connected with an air inlet of the water remover; an air outlet of the water remover is connected with an air inlet of the air storage tank; the lower part of the heat exchange water tank is connected with a water inlet of a liquid runner of the plate type heat exchanger; a water outlet of the fluid runner of the plate type heat exchanger is connected with the upper part of the heat exchange water tank; cooling water is fed into a water inlet of the cooling water heat exchanger shell side and is drained through a water outlet of a tube side. The technology of the method is clear in process, the modifying is easy, the water utilization amount of the cooling water heat exchanger is reduced, and full use of the heat energy in heat exchange water is facilitated.

Description

technical field [0001] The invention relates to a water-saving and heat energy recovery technology, in particular to a method and device for recovery of compressed air heat energy in an aerobic microbial fermentation system. technical background [0002] In the process of aerobic microbial fermentation, sterile air needs to be continuously introduced to maintain the normal growth and metabolism of the bacteria and prevent the infection of other bacteria. Sterile air comes from the high-temperature compressed air produced by the air compressor, and is processed in multiple stages to meet the sterility and temperature requirements of industrial production. Compressed air contains high moisture, which affects the subsequent sterilization of filter equipment. Therefore, in the early pretreatment process of the aerobic microbial fermentation air system, it is necessary to cool down the compressed air first, fully condense the moisture in the compressed air, improve the efficienc...

AI Technical Summary

Problems solved by technology

[0005] 1. The temperature of high-temperature compressed air is 100-160°C, which contains high heat energy. This heat energy resource has not been effectively utilized, resulting in great waste

[0006] 2. In order to achieve a better water removal effect, the high-temperature compressed air needs to be cooled to 5-25°C first, and this process consumes a lot of cooling water

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