IPC-Stelle: F22B 37/04 [Version 2017.01]

SymbolTypTitel
FSKMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F22KLSTEAM GENERATION
F22BUKLMETHODS OF STEAM GENERATION; STEAM BOILERS (steam engine plants where engine aspects predominate F01K; removal of combustion products or residues, e.g. cleaning of the combustion contaminated surfaces of tubes of boilers, F23J 3/00; domestic central-heating systems using steam F24D; heat exchange or heat transfer in general F28; generation of vapour in the cores of nuclear reactors G21)
F22B 1/00HGRMethods of steam generation characterised by form of heating method (use of solar heat F24J 2/00; jackets or other cooling means in which steam is generated and which serve for cooling other apparatus, see the subclasses for such apparatus) [1, 2006.01]
F22B 1/02UGR1
.by exploitation of the heat content of hot heat carriers [1, 2006.01]
F22B 1/04UGR2
. .the heat carrier being hot slag, hot residues, or heated blocks, e.g. iron blocks [1, 2006.01]
F22B 1/06UGR2
. .the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium [1, 2006.01]
F22B 1/08UGR2
. .the heat carrier being steam [1, 2006.01]
F22B 1/10UGR3
. . .released from heat accumulators [1, 2006.01]
F22B 1/12UGR3
. . .produced by an indirect cyclic process [1, 2006.01]
F22B 1/14UGR3
. . .coming in direct contact with water in bulk or in sprays [1, 2006.01]
F22B 1/16UGR2
. .the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour [1, 2006.01]
F22B 1/18UGR2
. .the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines (use of waste heat of combustion engines, in general, F02) [1, 2006.01]
F22B 1/20UGR1
.using heat evolved in a solution absorbing steam; Soda steam boilers [1, 2006.01]
F22B 1/22UGR1
.using combustion under pressure substantially exceeding atmospheric pressure [1, 2006.01]
F22B 1/24UGR2
. .Pressure-fired steam boilers, e.g. using turbo air compressors actuated by hot gases from boiler furnace [1, 2006.01]
F22B 1/26UGR2
. .Steam boilers of submerged-flame type, i.e. the flame being surrounded by, or impinging on, the water to be vaporised [1, 2006.01]
F22B 1/28UGR1
.in boilers heated electrically [1, 2006.01]
F22B 1/30UGR2
. .Electrode boilers [1, 2006.01]
F22B 3/00HGROther methods of steam generation; Steam boilers not provided for in other groups of this subclass [1, 2006.01]
F22B 3/02UGR1
.involving the use of working media other than water [1, 2006.01]
F22B 3/04UGR1
.by drop in pressure of high-pressure hot water within pressure-reducing chambers, e.g. in accumulators (steam accumulators per seF01K 1/00) [1, 2006.01]
F22B 3/06UGR1
.by transformation of mechanical, e.g. kinetic, energy into heat energy [1, 2006.01]
F22B 3/08UGR1
.at critical or supercritical pressure values [1, 2006.01]
F22B 5/00HGRSteam boilers of drum type, i.e. without internal furnace or fire tubes, the boiler body being contacted externally by flue gas [1, 2006.01]
F22B 5/02UGR1
.with auxiliary water tubes outside the boiler body [1, 2006.01]
F22B 5/04UGR1
.Component parts thereof; Accessories therefor (covers or similar closure members for pressure vessels in general F16J 13/00) [1, 2006.01]
F22B 7/00HGRSteam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body [1, 2006.01]
F22B 7/02UGR1
.without auxiliary water tubes [1, 2006.01]
F22B 7/04UGR1
.with auxiliary water tubes [1, 2006.01]
F22B 7/06UGR2
. .inside the furnace tube in transverse arrangement [1, 2006.01]
F22B 7/08UGR2
. .inside the furnace tube in longitudinal arrangement [1, 2006.01]
F22B 7/10UGR2
. .outside the boiler body [1, 2006.01]
F22B 7/12UGR1
.with auxiliary fire tubes; Arrangement of header boxes providing for return diversion of flue gas flow [1, 2006.01]
F22B 7/14UGR1
.with both auxiliary water tubes and auxiliary fire tubes [1, 2006.01]
F22B 7/16UGR1
.Component parts thereof; Accessories therefor, e.g. stay-bolt connections [1, 2006.01]
F22B 7/18UGR2
. .Walling of flues; Flue-gas header boxes [1, 2006.01]
F22B 7/20UGR2
. .Furnace tubes [1, 2006.01]
F22B 9/00HGRSteam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body [1, 2006.01]
F22B 9/02UGR1
.the boiler body being disposed upright, e.g. above the combustion chamber [1, 2006.01]
F22B 9/04UGR2
. .the fire tubes being in upright arrangement [1, 2006.01]
F22B 9/06UGR3
. . .Arrangement of header boxes providing for return diversion of flue gas flow [1, 2006.01]
F22B 9/08UGR2
. .the fire tubes being in horizontal arrangement [1, 2006.01]
F22B 9/10UGR1
.the boiler body being disposed substantially horizontally, e.g. at the side of the combustion chamber [1, 2006.01]
F22B 9/12UGR2
. .the fire tubes being in substantially-horizontal arrangement [1, 2006.01]
F22B 9/14UGR3
. . .Arrangement of header boxes providing for return diversion of flue gas flow [1, 2006.01]
F22B 9/16UGR1
.the boiler body containing fire tubes disposed crosswise in inclined upward arrangement [1, 2006.01]
F22B 9/18UGR1
.Component parts thereof; Accessories therefor, e.g. stay-bolt connections [1, 2006.01]
F22B 11/00HGRSteam boilers of combined fire-tube type and water-tube type, i.e. steam boilers of fire-tube type having auxiliary water tubes [1, 2006.01]
F22B 11/02UGR1
.the fire tubes being in upright arrangement [1, 2006.01]
F22B 11/04UGR1
.the fire tubes being in horizontal arrangement [1, 2006.01]
F22B 13/00HGRSteam boilers of fire-box type, i.e. the combustion of fuel being performed in a chamber or fire-box with subsequent flue(s) or fire tube(s), both chamber or fire-box and flues or fire tubes being built-in in the boiler body [1, 2006.01]
F22B 13/02UGR1
.mounted in fixed position with the boiler body disposed upright [1, 2006.01]
F22B 13/04UGR1
.mounted in fixed position with the boiler body disposed substantially horizontally [1, 2006.01]
F22B 13/06UGR1
.Locomobile, traction-engine, steam-roller, or locomotive boilers [1, 2006.01]
F22B 13/08UGR2
. .without auxiliary water tubes inside the fire-box [1, 2006.01]
F22B 13/10UGR2
. .with auxiliary water tubes inside the fire-box [1, 2006.01]
F22B 13/12UGR3
. . .the auxiliary water tubes lining the fire-box [1, 2006.01]
F22B 13/14UGR1
.Component parts thereof; Accessories therefor [1, 2006.01]
F22B 13/16UGR2
. .Stay-bolt connections, e.g. rigid connections [1, 2006.01]
F22B 13/18UGR3
. . .Flexible connections, e.g. of ball-and-socket type [1, 2006.01]
F22B 15/00HGRWater-tube boilers of horizontal type, i.e. the water-tube sets being arranged horizontally [1, 2006.01]
F22B 17/00HGRWater-tube boilers of horizontally-inclined type, i.e. the water-tube sets being inclined slightly with respect to the horizontal plane [1, 2006.01]
F22B 17/02UGR1
.built-up from water-tube sets in abutting connection with two header boxes in common for all sets, e.g. with flat header boxes [1, 2006.01]
F22B 17/04UGR2
. .the water-tube sets being inclined in opposite directions, e.g. crosswise [1, 2006.01]
F22B 17/06UGR2
. .the water-tube sets being bent angularly [1, 2006.01]
F22B 17/08UGR2
. .the water-tube sets being curved [1, 2006.01]
F22B 17/10UGR1
.built-up from water-tube sets in abutting connection with two sectional headers each for every set, i.e. with headers in a number of sections across the width or height of the boiler [1, 2006.01]
F22B 17/12UGR2
. .the sectional headers being in vertical or substantially-vertical arrangement [1, 2006.01]
F22B 17/14UGR2
. .the sectional headers being in horizontal or substantially-horizontal arrangement [1, 2006.01]
F22B 17/16UGR1
.Component parts thereof; Accessories therefor [1, 2006.01]
F22B 17/18UGR2
. .Header boxes; Sectional headers [1, 2006.01]
F22B 19/00HGRWater-tube boilers of combined horizontally-inclined type and vertical type, i.e. water-tube boilers of horizontally-inclined type having auxiliary water-tube sets in vertical or substantially-vertical arrangement [1, 2006.01]
F22B 21/00HGRWater-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically [1, 2006.01]
F22B 21/02UGR1
.built-up from substantially-straight water tubes [1, 2006.01]
F22B 21/04UGR2
. .involving a single upper drum and a single lower drum, e.g. the drums being arranged transversely [1, 2006.01]
F22B 21/06UGR3
. . .the water tubes being arranged annularly in sets, e.g. in abutting connection with drums of annular shape [1, 2006.01]
F22B 21/08UGR3
. . .the water tubes being arranged sectionally in groups or in banks, e.g. bent over at their ends [1, 2006.01]
F22B 21/10UGR3
. . .the water tubes being arranged in staggered rows [1, 2006.01]
F22B 21/12UGR2
. .involving two or more upper drums and two or more lower drums, e.g. with crosswise-arranged water-tube sets in abutting connection with drums [1, 2006.01]
F22B 21/14UGR2
. .involving a single upper drum and two or more lower drums [1, 2006.01]
F22B 21/16UGR3
. . .the lower drums being interconnected by further water tubes [1, 2006.01]
F22B 21/18UGR2
. .involving two or more upper drums and a single lower drum [1, 2006.01]
F22B 21/20UGR2
. .involving sectional or subdivided headers in separate arrangement for each water-tube set [1, 2006.01]
F22B 21/22UGR1
.built-up from water tubes of form other than straight or substantially straight [1, 2006.01]
F22B 21/24UGR2
. .bent in serpentine or sinuous form [1, 2006.01]
F22B 21/26UGR2
. .bent helically, i.e. coiled [1, 2006.01]
F22B 21/28UGR2
. .bent spirally [1, 2006.01]
F22B 21/30UGR2
. .bent in U-loop form [1, 2006.01]
F22B 21/32UGR3
. . .disposed horizontally in abutting connection with upright headers or rising water mains [1, 2006.01]
F22B 21/34UGR1
.built-up from water tubes grouped in panel form surrounding the combustion chamber, i.e. radiation boilers [1, 2006.01]
F22B 21/36UGR2
. .involving an upper drum or headers mounted at the top of the combustion chamber [1, 2006.01]
F22B 21/38UGR2
. .Component parts thereof, e.g. prefabricated panels [1, 2006.01]
F22B 21/40UGR1
.built-up from water tubes arranged in a comparatively long vertical shaft, i.e. tower boilers [1, 2006.01]
F22B 23/00HGRWater-tube boilers built-up from sets of spaced double-walled water tubes of return type in unilaterial abutting connection with a boiler drum or with a header box, i.e. built-up from Field water tubes comprising an inner tube arranged within an outer unilaterally-closed tube [1, 2006.01]
F22B 23/02UGR1
.the water-tube, i.e. Field-tube, sets being horizontal or substantially horizontal [1, 2006.01]
F22B 23/04UGR1
.the water-tube, i.e. Field-tube, sets being vertical or substantially vertical [1, 2006.01]
F22B 23/06UGR1
.Component parts thereof, e.g. Field water tubes (heat-exchange tubes in general F28F) [1, 2006.01]
F22B 25/00HGRWater-tube boilers built-up from sets of water tubes with internally-arranged flue tubes, or fire tubes, extending through the water tubes [1, 2006.01]
F22B 27/00HGRInstantaneous or flash steam boilers [1, 2006.01]
F22B 27/02UGR1
.built-up from fire tubes [1, 2006.01]
F22B 27/04UGR1
.built-up from water tubes (F22B 27/12-F22B 27/16 take precedence) [1, 2006.01]
F22B 27/06UGR2
. .bent in serpentine or sinuous form [1, 2006.01]
F22B 27/08UGR2
. .bent helically, i.e. coiled [1, 2006.01]
F22B 27/10UGR2
. .bent spirally [1, 2006.01]
F22B 27/12UGR1
.built-up from rotary heat-exchange elements, e.g. from tube assemblies [1, 2006.01]
F22B 27/14UGR1
.built-up from heat-exchange elements arranged within a confined chamber having heat-retaining walls [1, 2006.01]
F22B 27/16UGR1
.involving spray nozzles for sprinkling or injecting water particles on to or into hot heat-exchange elements, e.g. into tubes [1, 2006.01]
F22B 29/00HGRSteam boilers of forced-flow type [1, 2006.01]
F22B 29/02UGR1
.of forced-circulation type [1, 2006.01]
F22B 29/04UGR1
.of combined-circulation type, i.e. in which convection circulation due to the difference in specific gravity between cold and hot water is promoted by additional measures, e.g. by injecting pressure-water temporarily [1, 2006.01]
F22B 29/06UGR1
.of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes (F22B 33/00 takes precedence) [1, 2006.01]
F22B 29/08UGR2
. .operating with fixed point of final state of complete evaporation [1, 2006.01]
F22B 29/10UGR2
. .operating with sliding point of final state of complete evaporation [1, 2006.01]
F22B 29/12UGR2
. .operating with superimposed recirculation during starting and low-load periods, e.g. composite boilers [1, 2006.01]
F22B 31/00HGRModifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus (steam generation characterised by heating method F22B 1/00; combustion apparatus per seF23) [1, 2006.01]
F22B 31/02UGR1
.Installation of water-tube boilers in chimneys, e.g. in converter chimneys [1, 2006.01]
F22B 31/04UGR1
.Heat supply by installation of two or more combustion apparatus, e.g. of separate combustion apparatus for the boiler and the superheater respectively [1, 2006.01]
F22B 31/06UGR2
. .Installation of emergency heat supply [1, 2006.01]
F22B 31/08UGR1
.Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion [1, 2006.01]
F22B 33/00ZWSteam-generation plants; Control systems
F22B 33/00HGRSteam-generation plants, e.g. comprising steam boilers of different types in mutual association (arrangements or dispositions of steam-generation plants in marine vessels B63H 21/00) [1, 2006.01]
F22B 33/02UGR1
.Combinations of boilers having a single combustion apparatus in common [1, 2006.01]
F22B 33/04UGR2
. .of boilers of furnace-tube type with boilers of water-tube type [1, 2006.01]
F22B 33/06UGR2
. .of boilers of furnace-tube type with boilers of fire-tube type [1, 2006.01]
F22B 33/08UGR2
. .of boilers of water-tube type with boilers of fire-tube type [1, 2006.01]
F22B 33/10UGR2
. .of two or more superposed boilers with separate water volumes and operating with two or more separate water levels [1, 2006.01]
F22B 33/12UGR1
.Self-contained steam boilers, i.e. comprising as a unit the steam boiler, the combustion apparatus, the fuel storage, accessory machines, and equipment [1, 2006.01]
F22B 33/14UGR1
.Combinations of low- and high-pressure boilers [1, 2006.01]
F22B 33/16UGR2
. .of forced-flow type [1, 2006.01]
F22B 33/18UGR1
.Combinations of steam boilers with other apparatus [1, 2006.01]
F22B 35/00HGRControl systems for steam boilers (regulation or control of steam power plants F01K 7/00; for regulating feed-water supply F22D; for controlling superheat temperature F22G 5/00; control of combustion F23N) [1, 2006.01]
F22B 35/02UGR1
.for steam boilers with natural convection circulation [1, 2006.01]
F22B 35/04UGR2
. .during starting-up periods, i.e. during the periods between the lighting of the furnaces and the attainment of the normal operating temperature of the steam boilers [1, 2006.01]
F22B 35/06UGR1
.for steam boilers of forced-flow type [1, 2006.01]
F22B 35/08UGR2
. .of forced-circulation type [1, 2006.01]
F22B 35/10UGR2
. .of once-through type [1, 2006.01]
F22B 35/12UGR3
. . .operating at critical or supercritical pressure [1, 2006.01]
F22B 35/14UGR2
. .during the starting-up periods, i.e. during the periods between the lighting of the furnaces and the attainment of the normal operating temperature of the steam boilers [1, 2006.01]
F22B 35/16UGR2
. .responsive to the percentage of steam in the mixture of steam and water [1, 2006.01]
F22B 35/18UGR1
.Applications of computers to steam-boiler control [1, 2006.01]
F22B 37/00ZWE
F22B 37/00HGRComponent parts or details of steam boilers (venting devices F16K 24/00; steam traps or like apparatus F16T) [1, 2006.01]
F22B 37/02UGR1
.applicable to more than one kind or type of steam boiler [1, 2006.01]
F22B 37/04UGR2
. .and characterised by material, e.g. use of special steel alloy [1, 2006.01]
F22B 37/06UGR2
. .Flue or fire tubes; Accessories therefor, e.g. fire-tube inserts [1, 2006.01]
F22B 37/08UGR3
. . .Fittings preventing burning-off of the tube edges [1, 2006.01]
F22B 37/10UGR2
. .Water tubes; Accessories therefor (working of metal tubes B21D; pipes in general F16L; repairing leaks in water tubes F16L 55/16, F28F 11/00; cleaning water tubes of boilers F23J, F28G; baffles, screens, or deflectors formed of water tubes F23M 9/10) [1, 2006.01]
F22B 37/12UGR3
. . .Forms of water tubes, e.g. of varying cross-section [1, 2006.01]
F22B 37/14UGR3
. . .Supply mains, e.g. rising mains, down-comers, in connection with water tubes [1, 2006.01]
F22B 37/16UGR3
. . .Return bends [1, 2006.01]
F22B 37/18UGR3
. . .Inserts, e.g. for receiving deposits from water [1, 2006.01]
F22B 37/20UGR3
. . .Supporting arrangements, e.g. for securing water-tube sets (construction of tube walls of furnaces including boiler furnaces F23M 5/08) [1, 2006.01]
F22B 37/22UGR2
. .Drums; Headers; Accessories therefor (making boilers from sheet metal B21D 51/24; pressure vessels in general F16J 12/00; covers or similar closure members for pressure vessels in general F16J 13/00) [1, 2006.01]
F22B 37/24UGR2
. .Supporting, suspending, or setting arrangements, e.g. heat shielding (frames, engine beds F16M) [1, 2006.01]
F22B 37/26UGR2
. .Steam-separating arrangements (vapour-liquid separators, e.g. for drying steam, B01D, B04) [1, 2006.01]
F22B 37/28UGR3
. . .involving reversal of direction of flow [1, 2006.01]
F22B 37/30UGR3
. . .using impingement against baffle separators [1, 2006.01]
F22B 37/32UGR3
. . .using centrifugal force [1, 2006.01]
F22B 37/34UGR2
. .Adaptations of boilers for promoting water circulation (auxiliary devices for promoting water circulation F22D 7/00) [1, 2006.01]
F22B 37/36UGR2
. .Arrangements for sheathing or casing boilers [1, 2006.01]
F22B 37/38UGR2
. .Determining or indicating operating conditions in steam boilers, e.g. monitoring direction or rate of water flow through water tubes (measuring or indicating instruments in general G01) [1, 2006.01]
F22B 37/40UGR2
. .Arrangements of partition walls in flues of steam boilers, e.g. built-up from baffles (in flues or chimneys F23J 13/00) [1, 2006.01]
F22B 37/42UGR2
. .Applications, arrangements, or dispositions of alarm or automatic safety devices (for feed-water heaters F22D 1/14; alarms responsive to undesired or abnormal conditions G08B) [1, 2006.01]
F22B 37/44UGR3
. . .of safety valves (safety valves per seF16K) [1, 2006.01]
F22B 37/46UGR3
. . .responsive to low or high water level, e.g. for checking, suppressing, extinguishing combustion in boilers (fire-fighting, fire extinction in general A62) [1, 2006.01]
F22B 37/47UGR3
. . .responsive to abnormal temperature, e.g. actuated by fusible plugs (such alarms or devices per seG08B) [1, 2006.01]
F22B 37/48UGR2
. .Devices or arrangements for removing water, minerals, or sludge from boilers (cleaning water tubes, furnace tubes, or the like of boilers F23J, F28G) [1, 2006.01]
F22B 37/50UGR3
. . .for draining or expelling water [1, 2006.01]
F22B 37/52UGR3
. . .Washing-out devices [1, 2006.01]
F22B 37/54UGR3
. . .De-sludging or blow-down devices [1, 2006.01]
F22B 37/56UGR2
. .Boiler-cleaning control devices, e.g. for ascertaining proper duration of boiler blow-down [1, 2006.01]
F22B 37/58UGR2
. .Removing tubes from headers or drums; Extracting tools [1, 2006.01]
F22B 37/60UGR1
.specially adapted for steam boilers of instantaneous or flash type [1, 2006.01]
F22B 37/62UGR1
.specially adapted for steam boilers of forced-flow type [1, 2006.01]
F22B 37/64UGR2
. .Mounting of, or supporting arrangements for, tube units (construction of tube walls of furnaces, e.g. boiler furnaces F23M 5/08) [1, 2006.01]
F22B 37/66UGR3
. . .involving vertically-disposed water tubes [1, 2006.01]
F22B 37/68UGR3
. . .involving horizontally-disposed water tubes [1, 2006.01]
F22B 37/70UGR2
. .Arrangements for distributing water into water tubes [1, 2006.01]
F22B 37/72UGR3
. . .involving injection devices [1, 2006.01]
F22B 37/74UGR3
. . .Throttling arrangements for tubes or sets of tubes [1, 2006.01]
F22B 37/76UGR1
.Adaptations or mounting of devices for observing existence or direction of fluid flow (devices per seG01P) [1, 2006.01]
F22B 37/78UGR1
.Adaptations or mounting of level indicators (level indicators per seG01F) [1, 2006.01]