METHOD OF REGULATION OF MODE OF OPERATION OF DEVICE FOR PRELIMINARY HEATING OF GAS-FED AIR IN BOILER UNIT WITH ROTATING REGENERATION AIR HEATER Russian patent published in 2006 - IPC F23N3/04 

FIELD: burning of gas-formed fuel in boilers.

SUBSTANCE: method of regulation of operation mode of the device intended for preliminary air heating in gas-fed boiler unit provided with rotating regenerating air heater is based upon measurement of temperature of air being preliminary warmed by air heater followed by change in the temperature due to change in heat agent discharge. Heat agent is supplied to unit for preliminary air heating where during heating season the temperature t'_a of preliminary warmed air is kept to the value given lower: t'_a≥2t^1,04  _k-T_go°C, where t_k is temperature of condensation of water vapors contained in going gases behind the regenerating air heater, °C; T_go is temperature of going gases behind regenerating air heater at current load of boiler unit, °C.

EFFECT: reduced consumption of fuel; improved efficiency of boiler; reduced effluent of harmful matters; reduced power consumption.

1 dwg