Yao Zhifeng

TL;DR: In this article, the authors proposed an automatic control device for safe combustion of a small boiler in the utility model, which is characterized by further comprising a pressure sensor in the hearth, a temperature sensor in a flue, a liquid level sensor in water wall tube, liquid level sensors in a boiler barrel, a Zigbee module, a flashing light alarm circuit, a coal feeder stopping control circuit, an air blower, an induced draft fan stopping control, an oil pump, and a hearth pressure release solenoid valve control circuit.