| 摘要 |
FIELD: power industry.SUBSTANCE: several burners are installed on the boiler external wall in one or several rows throughout the furnace height or in its corners. An igniter and a pilot burner are arranged in the housing of each burner. Pilot burner is intended for ignition and monitoring of availability of the main burner flame. Air and gas is supplied to the pilot burner at constant pressure. Flame of each pilot burner is monitored using the method that excludes the influence of flames of other working burners, for example with an ionisation sensor. Availability of the main flame of each burner is guaranteed with availability of flame of its constantly operating pilot burner. Automatic gas equipment units are installed before burners, and their control is performed by means of a burner control cabinet.EFFECT: invention allows creating a reliable method excluding false information on availability of flame on that burner at its loss.1 cl, 1 dwg |
