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【摘要】 本文研究了带冷凝回热调节的供冷水系统通过检测出水温度实施回热调节和风机转速控制的方法。研制了以单片机为中心的控制系统,编制了控制软件,在负载负荷变化的情况下,以出水温度和冷凝压力信号为输入对冷凝回热调节阀和风机进行控制,通过PID参数的调节,调节回热调节阀开度和风机转速。 【Abstract】 This study mainly focus on the stability control of the Refrigeration System with condensation and heat reclaim control valve of heat reclaim and fanner.We manufacture a control System by SCM.and compile a control software.When the load changed,the water temperature signal and pressure signal adjust valve of heat reclaim and fanner from PID parameter. 【关键词】 回热调节; 冷凝压力; 风机转速控制; PID调节 【Key words】 Adjust of reclaim heat; Condensation pressure; Adjust the rev of fanner; Adjust by PID parameter