Subway station wind-water linkage energy-saving optimization method

Abstract

The invention discloses a subway station wind-water linkage energy-saving optimization method. According to the method, an equipment management room ventilation and air conditioning system is called as a small system, a station public area ventilation and air conditioning system is called as a large system, and the optimization method comprises the following steps that the working conditions of the large and small systems are automatically controlled, and specifically, a control scheme is made for the working conditions of the systems according to enthalpy value temperatures of the large and small systems in different time periods; the temperature of the large and small systems is automatically controlled, and specifically, a control scheme is made for equipment comprising variable frequency fans in the systems according to temperature changes of the large and small systems in different seasons; a water system is controlled, and specifically, a control scheme is made for equipment comprising a water system water chilling unit, a variable frequency pump and an electric butterfly valve. According to the subway station wind-water linkage energy-saving optimization method, the stationlarge system is located in a specified temperature range through large system wind circulation, meanwhile, the chilled water frequency and the cooling water frequency are adjusted, the water chillingunit is located in a reasonable working condition, safe and efficient operation of the water chilling system is guaranteed, and system energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of subway environment and equipment monitoring, in particular to a wind-water linkage energy-saving optimization method for a subway station. Background technique [0002] In recent years, the subway integrated monitoring system ISCS has developed rapidly. The integrated monitoring system deeply integrates subsystems such as PSCADA and BAS, and interconnects and accesses other professional subsystems to realize information sharing and professional integration. Subsystem implementation monitoring. [0003] The subway cooling air-conditioning system is composed of cold source (chiller), air treatment equipment (combined air conditioner, surface cooler), fan, air valve, water pump, air and water piping system, etc. According to the characteristics of use, it can be divided into ventilation and air-conditioning systems for station equipment management rooms (small systems), ventilation and air-conditioning syst...

AI Technical Summary

Problems solved by technology

[0006] In most of the existing subway stations, the air-conditioning, ventilation and refrigeration system has been in a fixed operation mode for a long time, controlling the temperature of each part of the environment in the station, and the air volume is manually controlled by the staff in the station, according to different time periods in different seasons And real-time on-site mode and manual adjustment of air-conditioning temperature, so it will consume a lot of energy, and this single operation mode is easy to reduce the service life of the air conditioner

At the same time, when the subway arrives at the station, since the door is opened, the internal and external environment can communicate with each other, which will also increase the energy consumption of the subway air conditioning and ventilation system, thereby reducing the operation efficiency of the subway low-voltage power supply system and increasing its energy consumption

[0007] To sum up, it can be seen that the current single and fixed operation mode cannot quickly and accurately judge the on-site situation; the equipment area, as an area where staff rarely enters, cannot monitor and adjust the environment in which the equipment is located in a timely manner, which may Device overheating may cause failure

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