Fault analysis of burner used in hot air furnace

There are many kinds and series of hot air furnace, which can be divided into two kinds by the way of adding coal: hand burning and machine burning, and can be divided into coal, oil and gas burning by the type of fuel. In many industries, hot air furnace has become the replacement product of electric heat source and traditional steam power heat source. The causes of common faults are analyzed as follows.

1) When the automatic control system fails, close the globe valve in the flow of the automatic control system, cut off the air source of automatic control, open the manual globe valve, and manually control the flame size and temperature.

2) when can't ignition point, two of the control system shall be globe valve closed, and then take a burning stick and ribbons for firing, dip in after take a small amount of flammable fuel ignites, will lead a burning stick from observation hole deep in the burner, the guarantee lead out a burning stick a spray hole front-end, the manual control valve slightly open, lit the fire, take off a burning stick, then slowly open the globe valves in the automatic control system for automatic and manual ignition end.

3) In the control system with frequent power loss, the loss of power will lead to the fire extinguishing of the heating furnace. In order to prevent the fire extinguishing of the heating furnace caused by frequent accidental power loss, a little opening can be left after the manual stop valve is put into automatic control to ensure that a little gas can pass through. In addition, due to the fuel gas water content with the seasons change, the adjustment of production parameters will be needed for combustion heating furnace volume change, the burner for the first time after installation and debugging, job employee according to the change of heating furnace operation state in a timely manner the volume adjustment, cause the waste of fuel or burner overworked, the increase of energy consumption, emission, operation cost and equipment failure rate increases, the operation of the heating furnace thermal efficiency drops, these are to disposal scheme to deal with them.