Year-round air conditioning ventilation coupling system and method

Abstract

The invention discloses a year-round air conditioning ventilation coupling system and method. The year-round air conditioning ventilation coupling system comprises a cooling module, a heating module and a mechanical ventilation module. According to the coupling system, an upper limit switching temperature and a lower limit switching temperature are seat. When the external temperature is higher than the upper limit switching temperature, the cooling module is executed. When the external temperature is lower than the lower limit switching temperature, the heating module is executed. When the external temperature lies between the upper limit switching temperature and the lower limit switching temperature, the mechanical ventilation module is executed. For a designed object, the year-round air conditioning ventilation coupling system and method can use natural energy sources to supply cold to a room in the transition season or even in winter so as to realize switching between the transition season and the winter-summer air-conditioning season, and therefore, the operation cost of a cold water unit and the like can be saved, and the air quality can be improved greatly by using a summer air duct system to filter fresh air by a filter in an air conditioning box, thereby fully reducing the year-around air conditioning energy consumption.

Description

technical field [0001] The invention relates to an air-conditioning heat exchange system, in particular to a year-round air-conditioning and ventilation coupling system and method. Background technique [0002] With the advancement of human technology, more and more buildings and workshops use large-scale centralized air-conditioning systems for indoor heat exchange. In some areas of buildings with high internal heat generation, such as communication equipment rooms, backup power supply rooms, etc., cooling is still required even in winter. In the prior art, conventional chillers plus cooling water systems are generally used. This brings up the following questions: [0003] 1. The load of the freezer in winter is small, less than 30% of the freezing capacity of a single freezer, wasting energy; [0004] 2. Low-load operation is likely to cause refrigerator failure. The cooling load can only be artificially increased by the operator adjusting the equipment to ensure the n...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a year-round air-conditioning and ventilation coupling system and method in order to overcome the problems of large equipment loss and energy waste during heat exchange in winter and summer in large buildings in the prior art

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