F23MCASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGESDEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERSSAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUSDETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme. F23M3/00 F23M3/00Firebridges F23M3/02modified for circulation of fluids, e.g. air, steam, water F23M3/04for delivery of gas, e.g. air, steam F23M3/06into or towards fire F23M3/08away from fire, e.g. towards smoke outlet F23M3/10transversely F23M3/12characterised by shape or construction F23M3/14with apertures for passage of combustion products F23M3/16built-up in sections, e.g. using bars or blocks F23M3/18doublemultiple F23M3/20comprising loose refractory material, wholly or in part F23M3/22movableadjustable F23M5/00CasingsLiningsWalls F23M5/02characterised by the shape of the bricks or blocks used F23M5/025specially adapted for burner openings F23M5/04Supports for linings F23M5/06Crowns or roofs for combustion chambers F23M5/08Cooling thereofTube walls F23M5/085using air or other gas as the cooling medium F23M7/00Doors F23M7/02Frames therefor F23M7/04Cooling doors or door frames F23M9/00Baffles or deflectors for air or combustion products baffles or deflectors for air or combustion products structurally associated with burners F23DFlame shields F23M9/003in flue gas ducts F23M9/006Backflow diverters F23M9/02in air inlets F23M9/04with air supply passages in the baffle or shield F23M9/06in fire-boxes F23M9/08Helical or twisted baffles or deflectors F23M9/10Baffles or deflectors formed as tubes, e.g. in water-tube boilers F23M11/00Safety arrangements F23M11/02Preventing emission of flames or hot gases, or admission of air, through working or charging apertures F23M11/04Means for supervising combustion, e.g. windows F23M11/042Viewing ports of windows F23M11/045by observing the flame F23M11/047by observing the flue gas controlling combustion using gas detectors F23N5/003 F23M20/00Details of combustion chambers, not otherwise provided for , e.g. means for storing heat from flames F23M20/005Noise absorbing means F23M2700/00 F23M2700/00Constructional details of combustion chambers F23M2700/005Structures of combustion chambers or smoke ducts F23M2700/0053Bricks for combustion chamber walls F23M2700/0056Bricks for water tube combustion chamber walls F23M2700/007Automatic fire extinguishing devices F23M2700/008Preventing outwards emission of flames or hot gases F23M2900/00Special features of, or arrangements for combustion chambers F23M2900/05001Preventing corrosion by using special lining materials or other techniques F23M2900/05002Means for accommodate thermal expansion of the wall liner F23M2900/05003Details of manufacturing specially adapted for combustion chambers F23M2900/05004Special materials for walls or lining F23M2900/05005Sealing means between wall tiles or panels F23M2900/05021Wall blocks adapted for burner openings F23M2900/09061Moving baffles, e.g. rotating baffles, for creating vortices F23M2900/09062Tube-shaped baffles confining the flame flame tubes forming part of the burner head F23D2900/11403 F23M2900/11021Means for avoiding accidental fires in rooms where the combustion device is located F23M2900/11041Means for observing or monitoring flames using photoelectric devices, e.g. phototransistors F23M2900/13001Energy recovery by fuel cells arranged in the combustion plant F23M2900/13002Energy recovery by heat storage elements arranged in the combustion chamber F23M2900/13003Energy recovery by thermoelectric elements, e.g. by Peltier/Seebeck effect, arranged in the combustion plant F23M2900/13004Energy recovery by thermo-photo-voltaic [TPV] elements arranged in the combustion plant