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冷冻建筑的根本特点是冷,库内一般相对稳定在±0～-40℃的某一温度。由于库外环境温度随自然界气温的变化而经常处于周期性的波动之中,加上冷库生产作业的需要,货物时常进出,冷库门开启频繁,库内外常常有热湿度交换发生。在一年中,多数时间是“内冷外热”。当外界热空气进入库内后,其状态变化为降温折湿过程,不但引起库内温度波动,而且折出水分将在低温围护结构表面或构结构件表面凝结成为水或冰霜,冰
The basic feature of frozen buildings is cold, the library is generally relatively stable at a temperature of ± 0 ~ -40 ℃. As the temperature of the outside of the warehouse varies with the change of the temperature in the nature, it is often in the cyclical fluctuations. With the need of the cold storage production, the goods often enter and exit, and the cold storage door is frequently opened, and the exchange of heat and humidity often occurs both inside and outside the warehouse. During the year, most of the time is “cold inside and outside ”. When the outside hot air into the warehouse, the state changes to the process of cooling and wetting, not only caused by fluctuations in the temperature inside the warehouse, and the folded water will be the surface of low-temperature envelope structure or structural condensation into water or frost, ice