加热型热泵干燥系统温湿度控制能力探讨

从空气调节的角度分析推导加热型热泵干燥系统的热湿平衡,把有效控制干燥温湿度的能力定义为控制能力。结合热泵原理解释控制能力与干燥温湿度、环境温湿度和物料量之间的关系,定性分析各因素的影响,得到判定加热型热泵干燥系统控制能力的条件,并指出可判断范围与不可判断范围。在理论分析的基础上,对秋季持续低温高湿运行难以短期改变的现象进行解答。

Study on temperature and humidity control ability of heating type heat pump drying system

In this paper, the heat and moisture balance of heating type heat pump drying system (HHPDS) is analyzed from the point of view of air conditioning. The ability that to effectively control the drying temperature and humidity is defined as the control capability. The relationship between the control capability and the drying temperature and humidity, the temperature and humidity of the environment and the amount of material is explained based on the principle of heat pump. Through the qualitative analysis of the influence of various factors, the conditions of determining the control ability of the HHPDS were obtained and it also pointed out the scope of judgment and the non judgment range. On the basis of theoretical analysis, the phenomenon, which the low temperature and high humidity is difficult to control in autumn is explained.