Automatic negative -pressure firing ware of surplus coefficient of adjustment air

Automatic negative -pressure firing ware of surplus coefficient of adjustment air, mainly by furnace, the PLC controller, combustor and ambient temperature detector are constituteed, set up pressure sensor in the furnace, set up adjusting the bezel in furnace's the chimney, set up air volume regulator in the air intake of combustor, set up flowmeter gentleness quantity adjustor in furnace's gas intake pipe, the ambient temperature detector, adjusting the bezel, pressure sensor, air volume regulator, flowmeter gentleness quantity adjustor link to each other with the PLC controller respectively. The utility model discloses but the surplus coefficient of device greatly reduced air has realized that the negative pressure stove reaches the combustion efficiency of forced draft combustor, and the stove that not only can improve current negative pressure stove is imitated, can enlarge using widely of negative pressure stove even, because the negative pressure stove does not need the air -blower to power consumption