蒸发冷却半集中式空调系统的控制方案
Automatic control system of evaporative cooling semi-centralized air conditioning system
摘要：
介绍了蒸发冷却半集中式空调系统的流程。基于该系统不同季节的运行模式，设计了自控方案，以保证该空调系统的安全性和节能性。详细介绍了控制内容和硬件配置。利用组态软件完成PC机与PLC之间的通讯，实现了系统集中控制、数据记录和打印等功能，能为现场设备维护人员提供详细的资料，简化操作、维护工作。工程应用实践表明，该自控系统运行稳定，能达到预期效果。
Abstract：
Presents the flow process of evaporative cooling semi-centralized air conditioning system. Based on operation modes of different seasons, designs the automatic scheme to guarantee the system’s safety and energy efficiency. Presents the control content and hardware configuration in detail. Achieves the communication between the personal computer and the programmable logic controller by configuration software, realizing the functions of centralized control, data logging and printing, so as to provide detailed data for on-site equipment maintenance worker and to simplify operation and maintenance. The project application shows that the control system works steadily and achieves a desired effect.
Keywords:evaporative cooling, semi-centralized air conditioning system, programmable logic controller, automatic control