4results about "Combustion types" patented technology

The air preheater (APH) temperature control system comprises at least a first APH or combustion / secondary air bypass duct in metered communication with a combustion air inlet duct and a secondary air duct, the first APH or combustion / secondary air bypass duct adapted in use to bleed a portion of the combustion air from the air inlet duct upstream of the APH 100 as a secondary air bypass and reintroduce it into the downstream secondary air duct, and a flow control device for metering or controlling the volumetric flow rate of the secondary air bypass and regulating the primary air flow, the flow control device being adapted in use alone or in combination with other regulating means to regulate the T10 MIN ~T10 MAX and a flow control device operable to maintain the flue gas outlet temperature at or above a desired minimum predetermined temperature for the incoming flue gas volumetric flow rate exiting the APH to maintain the mill outlet temperature within a safe range of .

To provide a burner which can use a power-accumulation type power supply device which is easy in portability.SOLUTION: An evaporation heater 8 is composed of a plurality of heaters 8a, 8b which are different from each other in capacities, and a control part 3 heats an evaporation part 9 by carrying electricity to the heater 8a which is large in the capacity when an input power supply is a commercial power supply, also heats the evaporation part 9 by carrying electricity to the heater 8b which is small in the capacity when the input power supply is other than the commercial power supply, and heats the evaporation part 9 by carrying electricity to the capacity-large heater 8a when the input power supply is the commercial power supply, thus shortening a time up to an ignition. When the input power supply is other than the commercial power supply, since the control part heats the evaporation part 9 by carrying electricity to the small-capacity heater 8b, even if a power-accumulation type power supply device which is small in output power is used, a current which is larger than a rated current does not flow to the power-accumulation type power supply device, and a burner can be operated without stopping an output of the power supply device.SELECTED DRAWING: Figure 2