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随着生产技术的发展,对环境湿度控制提出愈来愈高的要求,如根据纸张检验环境的国际规定,其检验室的湿度控制应保证在65±2％R.H范围之内。目前国内绝大多数恒湿系统只能保证控湿精度为±3％R.H,而且多数均采用先压低露点温度,再通过微调加湿器的方案,此法在空气处理过程中冷热量抵消,浪费能量。本课题结合工程实际的需要研制成一种不同于传统控制方法的系统,其主要特点是采用直接蒸发式表冷器,
With the development of production technology, higher and higher requirements have been put forward for environmental humidity control. For example, according to the international regulations of the paper inspection environment, the humidity control in the laboratory should be within 65±2% R.H. At present, most domestic constant-humidity systems can only ensure that the humidity control accuracy is ±3%RH, and most of them adopt the method of first lowering the dew point temperature, and then through the program of fine-tuning the humidifier. This method cancels out the cold heat in the air processing process and wastes it. energy. This topic is combined with the actual needs of engineering to develop a system that is different from the traditional control method. Its main feature is the use of direct evaporative coolers,