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CONTROL METHOD AND CONTROL DEVICE FOR VARIABLE-FREQUENCY AND VARIABLE-CAPACITY HEAT PUMP HOT-AIR DRYING SYSTEM
CONTROL METHOD AND CONTROL DEVICE FOR VARIABLE-FREQUENCY AND VARIABLE-CAPACITY HEAT PUMP HOT-AIR DRYING SYSTEM
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机译:变频调速热泵热风干燥系统的控制方法及控制装置
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摘要
A control method and control device for a heat pump-type double-circulation hot-air drying system, relating to a device for supplying or controlling air or gas for drying solid materials or products, and in particular to a control method and control device for a heat pump-type hot-air drying system. The method comprises: configuring a temperature control parameter, and saving a preset temperature control curve parameter; detecting and monitoring an outlet air temperature, and the temperature and humidity of a drying room; dynamically adjusting a set temperature according to a preset temperature control curve; and selecting, according to a current set temperature, a double-circulation dynamic operation mode of a system. The control device uses a micro-processor to realize program control. By building an inner circulation loop for large-volume air circulation, the latent heat of condensation in a refrigerant is fully absorbed, to improve the basic air temperature.
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