Ovens are a new type of ovens equipment emerging in the market today. The emergence of ovens has brought new sales storm to the ovens industry, and many people can't help but be attracted by its perfect design and excellent performance.The following introduces the knowledge of hot air circulating oven and common fault analysis.
The temperature control of the oven box prevailing in the market generally adopts the intelligent computer temperature control and PLC automatic control system. When the temperature reaches the set value, the temperature controller outputs PID control signal PLC, and the PLC output control signal is sent to the time relay KT, making it start the heat preservation and timing. At the same time, close the inlet fan and exhaust disc valve.
Oven common fault is mainly closed cycle oven air switch, according to the operating instructions of the oven set heating temperature 250 ℃, overtemperature alarm temperature 260 ℃, and heat preservation time after 1 h, launch its automatically run the program, the cycle of drying oven fan, the fan and disc valves, heating and lights light up in sequence, that program is running normally.After the heating operation for 2.5h, the temperature still cannot reach the set value. If the heating time is too long, the glass container will be brittle and the broken bottle rate will increase.Then determine whether there is a fault in the circulating fan, resulting in poor circulation of hot air circulation air, hot and humid air can not be discharged normally.Secondly, by analyzing the fault phenomenon and the circuit principle of the oven, the oven can be heated, which indicates that the output signal of intelligent computer temperature controller is normal, and the input and output signal of PLC is also normal.As the latest product of the oven, the purifying hot air circulating oven bears a lot of external pressure and doubts, but this does not affect the display of its superior performance at all. As long as you master relevant knowledge, coupled with the continuous improvement of its products, it is believed that its role will be increasingly greater.