Operation control method for direct evaporative cooling subway ventilation and cooling system

Abstract

The invention relates to an operation control method for a direct evaporative cooling subway ventilation and cooling system. The operation control method overcomes the problem of high energy consumption of system operation in the prior art, realizes the lowest energy consumption of long-term operation of the direct evaporative cooling subway ventilation and cooling system on the premise of meeting the requirement of environmental comfort, and achieves the purpose of saving electricity in operation. The method comprises the following steps: (1) through interconnection between a unit energy-saving control cabinet and a subway station BAS system, a one-key start or stop control instruction of the direct evaporative cooling subway ventilation and cooling system issued by the BAS system is realized; (2) the unit energy-saving control cabinet performs calculation analysis and comparative judgment on data acquired by each sensor, gives a specific operation state instruction of each controlled device, and controls each controlled device to operate; and (3) automatic operation control of the direct evaporative cooling subway ventilation and cooling system is achieved.

Description

Technical field: [0001] The invention belongs to the technical field of air conditioning automatic control, and relates to an operation control method of a direct evaporative cooling subway ventilation and cooling system. Background technique: [0002] The control of ambient temperature and humidity in subway underground stations is completely realized by the ventilation and air conditioning system of the subway. Its function should not only meet the comfort needs of personnel, but also ensure the normal operation of the equipment. The energy consumption of the system operation has always been high. The direct evaporative cooling subway ventilation and cooling system does not require mechanical refrigeration. It uses the renewable energy dry air energy in nature as the driving force for heat and moisture exchange and transfer. The high-temperature dry air to be processed is filled by the combined water film evaporative air conditioning cooling unit of the subway station. The...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a direct evaporative cooling subway ventilation and cooling system operation control method, which overcomes the problem of high energy consumption in system operation existing in the prior art. Under the premise of high temperature requirements, the energy consumption of long-term operation is the lowest, so as to achieve the purpose of saving electricity during operation

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