Patent ID: 8967996
Filing Date: 2015-03-03
Classification: F22B,F23C,F23L,F23N

Abstract:
1. A combustion controller for controlling fuel and air which are supplied into a combustion furnace for burning a substance, the combustion controller comprising: a fuel supply unit for supplying fuel and air into the combustion furnace; an air supply unit which is disposed downstream of the fuel supply unit in a direction of flow of combustion air and supply air into the combustion furnace; a concentration measuring unit for measuring a concentration of hydrogen sulfide of the combustion air by passing a measurement beam of light through the combustion air at a measurement position downstream of the fuel supply unit in the direction of flow of the combustion air; and a control unit for controlling an amount of air to supply from the fuel supply unit based on a measurement result provided by the concentration measuring unit, wherein the measurement beam of light is a laser beam in a wavelength band that is absorbed by the hydrogen sulfide, and the concentration measuring unit includes: