Design of Constant Temperature Control System for coal drying oven
In order to meet the requirements of drying coal powder in laboratory,This paper design Thermostatic Drying Oven Control system which is centred by a SH79F081 microcomputer.On the basis of expounding the working principle of the system,the system hardware and software flow chart are given in details.The hardware consist of power converter、temperature setting circuit、output control circuit、zero crossing detection circuit and temperature display circuit.The software includes the main program,temperature acquisition subroutine,thyristor on-off subroutine and display subroutine.The system can effectively control the temperature and it can be maintained accuratly at the set value.
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