CONTROL ALGORITHM OF DRYER USING OF HEAT PUMP HIGH FREQUENCE WITH VACUUM

摘要

The present invention relates to a control algorithm for a dryer using a heat pump and vacuum high-frequency, and relates to the dryer comprising a dry chamber, a microwave, a drain chamber, a vacuum chamber, and a heat pump, wherein a temperature sensor and a temperature indicated controller (TIC) are installed at the dryer, and a silicon controlled rectifier (SCR) and a controller are installed between the TIC and the temperature sensor. The control algorithm according to the present invention comprises: the TIC sets temperature inside a dry chamber into a predetermined temperature when a drying operation is performed by the actuation of the microwave installed to be connected to the dry chamber; the temperature sensor measures the predetermined temperature set by the TIC; the SCR controls wattage fed to the microwave in order to maintain the predetermined temperature set by the TIC; and a controller performs a drying operation through a control process for starting a vacuum operation inside the dry chamber and drain chamber with the actuation of the vacuum pump in order to make inside the dry chamber and drain chamber vacuous, thereby gaining effects for performing the complete drying operation and for improving the drying rate of the dryer. [Reference numerals] (AA) Pressure sensor;(BB) Temperature sensor