摘要
本文介绍了风冷热泵螺杆机组的控制原理和方法,以SIMENS S7-200可编程控制器为核心,对硬件结构和特点及软件的设计均作了相应的介绍,并对压缩机能量的控制加入了水温变化率的因数。
This paper introduces principle and method of air cooling heat pump unit, with the S7-200 programable logical controller used as the control center of system, describes the structure and trait of the hardware and designing of the software. Put the factor of rate of temperature into compressor's capacity control method.
出处
《制冷与空调》
2004年第1期58-60,共3页
Refrigeration and Air-Conditioning
