Cascade high-efficiency heat recovery condensing system

Abstract

The application relates to the technical field of cooling and waste heat recycling, and particularly discloses a cascade efficient heat recycling condensing system, which comprises a cascade cooling system and a heat recycling system. The cascade cooling system comprises a cascade condenser, a low-temperature cooling tower and a high-temperature cooling tower. The cascade condenser comprises a shell and a high-temperature water cavity and a low-temperature water cavity arranged in the shell. The high-temperature water cavity and the high-temperature cooling tower are connected in series through pipelines to form a high-temperature cooling loop, and the low-temperature water cavity and the low-temperature cooling tower are connected in series through pipelines to form a low-temperature cooling loop. The heat recycling system comprises a low-temperature heat exchanger connected in series in the low-temperature cooling loop and a high-temperature heat exchanger connected in series in the high-temperature condenser. The water outlet end of the heat absorption pipeline of the low-temperature heat exchanger is connected with the water inlet end of the heat absorption pipeline of the high-temperature heat exchanger through a temperature rising pipeline. The patent aims to solve the problem that the cooling water for wine production in the existing wine factory is cooled completely through a cooling tower, and it is difficult to cool the cooling water to the required temperature in summer high-temperature climate.

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