Description of Automatic Control System of Oil Burner

DESCRIPTION OF AUTOMATIC CONTROL SYSTEM OF OIL BURNER.

1) Oil burner

Sunflame burner model SSC, of oil circulating and high pressure atomization type, employs oil gun which operates under high pressure. This is an ideal burner in that heavy oil atomized into very fine particles through its nozzle and completely mixed with air flow directed from incorporated forced draft fan through built-in air-nozzle to ever assure complete combustion of the mixture. The SSC burner is so compactly designed and constructed that its fan and electric motor as well as oil pump which draws oil from service tank and exerts pressure on the oil are all driven coaxially with minimum moving components fro easy maintenance.

2) Automatic control system.

a) Automatic electric igniter:
This igniter is mainly composed of transformer for providing sparks, electrode and electrode-wire and operatively generates sparks to directly ignite heavy oil.
b) Steam pressure switch. (For ON/OFF control):
In response to the operating pressure variation, the bellows incorporated in this unit will expand or contract to actuate micro-switch for opening or closing the electric circuit for automatic start or stop of burner operation.
c) Combustion monitor. (Flame-eye.):
This is Flame-eye of an electronic tube type employing photocell of cadmium sulfide.
d) Oil temperature check-up switch. (built-in oil heater.):
Unless fuel oil reaches predetermined value, this burner cannot be get into its automatic operation. Once the temperature lowers down below that value, the burner will be brought to rest.
e) Heavy oil solenoid valve.
This serves to control two positions (ON/OFF) of fuel oil supply.
f. Main control protecting relay. (YH-3B.):
This relay controls the burner program depending on signals from the monitoring unit during automatic operation of burner and further provides automatic controls of operations of all associated operating units for assuring stable oil combustion with maximum security.
g. Oil preheater:
This preheats heavy oil up to a proper temperature for easier ignition of the oil with improved efficiency in its combustion.
h. Control panel. (Mount-to-wall type made of steel sheet.).
This panel is provided with all electric components necessary for controls for oil combustion, including main control protecting relay, auxiliary switch, pilot lamp, operating switches etc., and is particularly used for any automatic control of operating signals given to all of the associated units on the basis of controlled program and for check-ups of safety operation as well as for all automatic controls of oil combustion. However, manual burner operation may be possible by means of appropriate switch, if so desired.