Version: 2024.01
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CPC | COOPERATIVE PATENT CLASSIFICATION | |||
| F22B | METHODS OF STEAM GENERATION; STEAM BOILERS (steam engine plants where engine aspects predominate F01K; 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) [2018-08] NOTE
WARNING
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General aspects of, or methods for, steam generation [2013-01] |
F22B 1/00 | Methods of steam generation characterised by form of heating method (solar heating F24S; jackets or other cooling means in which steam is generated and which serve for cooling other apparatus, see the subclasses for such apparatus) [2018-05] |
F22B 1/003 | . | {using combustion of hydrogen with oxygen (power plants using steam created by combustion of hydrogen with oxygen F01K 25/005)} [2013-01] |
F22B 1/006 | . |
F22B 1/02 | . | by exploitation of the heat content of hot heat carriers [2013-01] |
F22B 1/021 | . . | {with heating tubes in which flows a non-specified heating fluid (for nuclear reactors F22B 1/023, for hot gas F22B 1/1884)} [2013-01] |
F22B 1/023 | . . | {with heating tubes, for nuclear reactors as far as they are not classified, according to a specified heating fluid, in another group} [2013-01] |
F22B 1/025 | . . . | {with vertical U shaped tubes carried on a horizontal tube sheet} [2013-01] |
F22B 1/026 | . . . | {with vertical tubes between to horizontal tube sheets} [2013-01] |
F22B 1/028 | . . | {Steam generation using heat accumulators (F22B 27/14 takes precedence)} [2013-01] |
F22B 1/04 | . . | the heat carrier being hot slag, hot residues, or heated blocks, e.g. iron blocks [2013-01] |
F22B 1/06 | . . | the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium [2013-01] |
F22B 1/063 | . . . | {for metal cooled nuclear reactors (heat-exchangers having a liquid metal as heat exchange medium F28D7/00C)} [2013-01] |
F22B 1/08 | . . | the heat carrier being steam [2013-01] |
F22B 1/10 | . . . | released from heat accumulators [2013-01] |
F22B 1/12 | . . . | produced by an indirect cyclic process [2013-01] |
F22B 1/123 | . . . . | {Steam generators downstream of a nuclear boiling water reactor} [2013-01] |
F22B 1/126 | . . . . | {Steam generators of the Schmidt-Hartmann type} [2013-01] |
F22B 1/14 | . . . | coming in direct contact with water in bulk or in sprays [2013-01] |
F22B 1/143 | . . . . | {in combination with a nuclear installation} [2013-01] |
F22B 1/146 | . . . . | {Loffler boilers} [2013-01] |
F22B 1/16 | . . | the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour [2013-01] |
F22B 1/162 | . . . | {in combination with a nuclear installation} [2013-01] |
F22B 1/165 | . . . | {using heat pipes (heat pipes per se F28D 15/02)} [2013-01] |
F22B 1/167 | . . . | {using an organic fluid} [2013-01] |
F22B 1/18 | . . | 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, F02G) [2013-01] |
F22B 1/1807 | . . . | {using the exhaust gases of combustion engines} [2013-01] |
F22B 1/1815 | . . . . | {using the exhaust gases of gas-turbines} [2013-01] |
F22B 1/1823 | . . . | {for gas-cooled nuclear reactors} [2013-01] |
F22B 1/183 | . . . | {in combination with metallurgical converter installations} [2013-01] |
F22B 1/1838 | . . . | {the hot gas being under a high pressure, e.g. in chemical installations} [2013-01] |
F22B 1/1846 | . . . . | {the hot gas being loaded with particles, e.g. waste heat boilers after a coal gasification plant} [2013-01] |
F22B 1/1853 | . . . | {coming in direct contact with water in bulk or in sprays} [2013-01] |
F22B 1/1861 | . . . | {Waste heat boilers with supplementary firing} [2013-01] |
F22B 1/1869 | . . . | {Hot gas water tube boilers not provided for in F22B 1/1807 - F22B 1/1861} [2013-01] |
F22B 1/1876 | . . . . | {the hot gas being loaded with particles, e.g. dust (with the hot gas being under high pressure F22B 1/1846)} [2013-01] |
F22B 1/1884 | . . . | {Hot gas heating tube boilers with one or more heating tubes} [2013-01] |
F22B 1/1892 | . . . | {Systems therefor not provided for in F22B 1/1807 - F22B 1/1861} [2016-05] |
F22B 1/20 | . | using heat evolved in a solution absorbing steam; Soda steam boilers [2013-01] |
F22B 1/22 | . | using combustion under pressure substantially exceeding atmospheric pressure [2013-01] |
F22B 1/24 | . . | Pressure-fired steam boilers, e.g. using turbo-air compressors actuated by hot gases from boiler furnace [2013-01] |
F22B 1/26 | . . | Steam boilers of submerged-flame type, i.e. the flame being surrounded by, or impinging on, the water to be vaporised {, e.g. water in sprays} [2016-08] |
F22B 1/265 | . . . | {the water being in bulk} [2013-01] |
F22B 1/28 | . | in boilers heated electrically {(superheating using an electrical heat source independent from heat supply of the steam boiler F22G 1/165)} [2013-01] |
F22B 1/281 | . . | {other than by electrical resistances or electrodes} [2013-01] |
F22B 1/282 | . . | {with water or steam circulating in tubes or ducts} [2013-01] |
F22B 1/284 | . . | {with water in reservoirs} [2013-01] |
F22B 1/285 | . . . | {the water being fed by a pump to the reservoirs} [2013-01] |
F22B 1/287 | . . | {with water in sprays or in films} [2013-01] |
F22B 1/288 | . . | {Instantaneous electrical steam generators built-up from heat-exchange elements arranged within a confined chamber having heat-retaining walls} [2013-01] |
F22B 1/30 | . . | Electrode boilers [2013-01] |
F22B 1/303 | . . . | {with means for injecting or spraying water against electrodes or with means for water circulation} [2013-01] |
F22B 1/306 | . . . . | {with at least one electrode permanently above the water surface} [2013-01] |
F22B 3/00 | Other methods of steam generation; Steam boilers not provided for in other groups of this subclass [2013-01] |
F22B 3/02 | . | involving the use of working media other than water [2013-01] |
F22B 3/04 | . | by drop in pressure of high-pressure hot water within pressure- reducing chambers, e.g. in accumulators (steam accumulators per se F01K 1/00) [2013-01] |
F22B 3/045 | . . | {the drop in pressure being achieved by compressors, e.g. with steam jet pumps} [2013-01] |
F22B 3/06 | . | by transformation of mechanical, e.g. kinetic, energy into heat energy [2013-01] |
F22B 3/08 | . | at critical or supercritical pressure values [2013-01] |
Kinds of steam boilers [2013-01] |
F22B 5/00 | Steam boilers of drum type, i.e. without internal furnace or fire tubes, the boiler body being contacted externally by flue gas [2013-01] |
F22B 5/005 | . | {with rotating drums} [2013-01] |
F22B 5/02 | . | with auxiliary water tubes outside the boiler body [2013-01] |
F22B 5/04 | . | Component parts thereof; Accessories therefor (covers or similar closure members F16J 13/00) [2013-01] |
F22B 7/00 | Steam 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 [2013-01] |
F22B 7/02 | . | without auxiliary water tubes [2013-01] |
F22B 7/04 | . | with auxiliary water tubes [2013-01] |
F22B 7/06 | . . | inside the furnace tube in transverse arrangements [2013-01] |
F22B 7/08 | . . | inside the furnace tube in longitudinal arrangement [2013-01] |
F22B 7/10 | . . | outside the boiler body [2013-01] |
F22B 7/12 | . | with auxiliary fire tubes; Arrangement of header boxes providing for return diversion of flue gas flow [2013-01] |
F22B 7/14 | . | with both auxiliary water tubes and auxiliary fire tubes [2013-01] |
F22B 7/16 | . | Component parts thereof; Accessories therefor, e.g. stay-bolt connections [2013-01] |
F22B 7/18 | . . | Walling of flues; Flue gas header boxes [2013-01] |
F22B 7/20 | . . | Furnace tubes [2013-01] |
F22B 9/00 | Steam 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 [2013-01] |
F22B 9/02 | . | the boiler body being disposed upright, e.g. above the combustion chamber [2013-01] |
F22B 9/04 | . . | the fire tubes being in upright arrangement [2013-01] |
F22B 9/06 | . . . | Arrangement of header boxes providing for return diversion of flue gas flow [2013-01] |
F22B 9/08 | . . | the fire tubes being in horizontal arrangement [2013-01] |
F22B 9/10 | . | the boiler body being disposed substantially horizontally, e.g. at the side of the combustion chamber [2013-01] |
F22B 9/12 | . . | the fire tubes being in substantially horizontal arrangement [2013-01] |
F22B 9/14 | . . . | Arrangement of header boxes providing for return diversion of flue gas flow [2013-01] |
F22B 9/16 | . | the boiler body containing fire tubes disposed crosswise in inclined upward arrangement [2013-01] |
F22B 9/18 | . | Component parts thereof; Accessories therefor, e.g. stay-bolt connections [2013-01] |
F22B 11/00 | Steam boilers of combined fire-tube type and water-tube type, i.e. steam boilers of fire-tube type having auxiliary water tubes [2013-01] |
F22B 11/02 | . | the fire tubes being in upright arrangement [2013-01] |
F22B 11/04 | . | the fire tubes being in horizontal arrangement [2013-01] |
F22B 13/005 | . | {with flues, other than fire tubes} [2013-01] |
F22B 13/02 | . | mounted in fixed position with the boiler body disposed upright [2013-01] |
F22B 13/023 | . . | {with auxiliary water tubes inside the fire-box, e.g. vertical tubes (F22B 13/10 takes precedence)} [2013-01] |
F22B 13/026 | . . . | {the tubes being in substantially horizontal arrangement} [2013-01] |
F22B 13/04 | . | mounted in fixed position with the boiler body disposed substantially horizontally [2013-01] |
F22B 13/06 | . | Locomobile, traction-engine, steam-roller, or locomotive boilers [2013-01] |
F22B 13/065 | . . | {Combination of low and high pressure locomotive boilers} [2013-01] |
F22B 13/08 | . . | without auxiliary water tubes inside the fire-box [2013-01] |
F22B 13/10 | . . | with auxiliary water tubes inside the fire-box [2013-01] |
F22B 13/12 | . . . | the auxiliary water tubes lining the fire-box [2013-01] |
F22B 13/14 | . | Component parts thereof; Accessories therefor [2013-01] |
F22B 13/145 | . . | {Firebox thermosiphons} [2013-01] |
F22B 13/16 | . . | Stay-bolt connections, e.g. rigid connections [2013-01] |
F22B 13/18 | . . . | Flexible connections, e.g. of ball-and-socket type [2013-01] |
F22B 15/00 | Water-tube boilers of horizontal type, i.e. the water-tube sets being arranged horizontally [2013-01] |
F22B 17/00 | Water-tube boilers of horizontally-inclined type, e.g. the water-tube sets being inclined slightly with respect to the horizontal plane [2013-01] |
F22B 17/02 | . | built-up from water-tube sets in abutting connection with two header boxes in common for all sets, e.g. with flat header boxes [2013-01] |
F22B 17/025 | . . | {with combined inlet and outlet header boxes, e.g. connected by U-tubes or Field tubes} [2013-01] |
F22B 17/04 | . . | the water-tube sets being inclined in opposite directions, e.g. crosswise [2013-01] |
F22B 17/06 | . . | the water-tube sets being bent angularly [2013-01] |
F22B 17/08 | . . | the water-tube sets being curved [2013-01] |
F22B 17/10 | . | 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 [2013-01] |
F22B 17/105 | . . | {with tubes in series flow arrangement} [2013-01] |
F22B 17/12 | . . | the sectional headers being in vertical or substantially vertical arrangement [2013-01] |
F22B 17/14 | . . | the sectional headers being in horizontal or substantially horizontal arrangement [2013-01] |
F22B 17/16 | . | Component parts thereof; Accessories therefor [2013-01] |
F22B 17/18 | . . | Header boxes; Sectional headers [2013-01] |
F22B 21/00 | Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically [2013-01] |
F22B 21/002 | . | {involving a single upper drum (F22B 21/36 takes precedence)} [2013-01] |
F22B 21/005 | . | {involving a central vertical drum, header or downcomer} [2013-01] |
F22B 21/007 | . | {specially adapted for locomotives} [2013-01] |
F22B 21/02 | . | built-up from substantially straight water tubes [2013-01] |
F22B 21/04 | . . | involving a single upper drum and a single lower drum, e.g. the drums being arranged transversely [2013-01] |
F22B 21/06 | . . . | the water tubes being arranged annularly in sets, e.g. in abutting connection with drums of annular shape [2013-01] |
F22B 21/065 | . . . . | {involving an upper and lower drum of annular shape} [2013-01] |
F22B 21/08 | . . . | the water tubes being arranged sectionally in groups or in banks, e.g. bent over at their ends [2013-01] |
F22B 21/081 | . . . . | {involving a combustion chamber, placed at the side and built-up from water tubes} [2013-01] |
F22B 21/083 | . . . . | {involving an upper drum and a lower drum and a fire-place between the two drums} [2013-01] |
F22B 21/085 | . . . . | {the tubes being placed in layers} [2013-01] |
F22B 21/086 | . . . . | {Frames built-up from water tubes} [2013-01] |
F22B 21/088 | . . . . | {involving an upper drum and a lower drum and two lateral drums} [2013-01] |
F22B 21/10 | . . . | the water tubes being arranged in staggered rows [2013-01] |
F22B 21/12 | . . | involving two or more upper drums and two or more lower drums, e.g. with crosswise-arranged water-tube sets in abutting connections with drums [2013-01] |
F22B 21/123 | . . . | {involving crossed water tubes} [2013-01] |
F22B 21/126 | . . . | {involving more than two lower or upper drums} [2013-01] |
F22B 21/14 | . . | involving a single upper drum and two or more lower drums [2013-01] |
F22B 21/16 | . . . | the lower drums being interconnected by further water tubes [2013-01] |
F22B 21/18 | . . | involving two or more upper drums and a single lower drum [2013-01] |
F22B 21/185 | . . . | {involving more than two upper drums and a single lower drum} [2013-01] |
F22B 21/20 | . . | involving sectional or subdivided headers in separate arrangement for each water-tube set [2013-01] |
F22B 21/22 | . | built-up from water tubes of form other than straight or substantially straight [2013-01] |
F22B 21/24 | . . | bent in serpentine or sinuous form [2013-01] |
F22B 21/26 | . . | bent helically, i.e. coiled [2013-01] |
F22B 21/28 | . . | bent spirally [2013-01] |
F22B 21/30 | . . | bent in U-loop form [2013-01] |
F22B 21/32 | . . . | disposed horizontally in abutting connection with upright headers or rising water mains [2013-01] |
F22B 21/34 | . | built-up from water tubes grouped in panel form surrounding the combustion chamber, i.e. radiation boilers [2013-01] |
F22B 21/341 | . . | {Vertical radiation boilers with combustion in the lower part} [2013-01] |
F22B 21/343 | . . . | {the vertical radiation combustion chamber being connected at its upper part to a sidewards convection chamber} [2013-01] |
F22B 21/345 | . . . . | {with a tube bundle between an upper and a lower drum in the convection pass} [2013-01] |
F22B 21/346 | . . | {Horizontal radiation boilers} [2013-01] |
F22B 21/348 | . . | {Radiation boilers with a burner at the top} [2013-01] |
F22B 21/36 | . . | involving an upper drum or headers mounted at the top of the combustion chamber [2013-01] |
F22B 21/363 | . . . | {involving a horizontal drum mounted in an upper corner of the boiler} [2013-01] |
F22B 21/366 | . . . | {involving a horizontal drum mounted in the middle of the boiler} [2013-01] |
F22B 21/38 | . . | Component parts thereof, e.g. prefabricated panels [2013-01] |
F22B 21/40 | . | built-up from water tubes arranged in a comparatively long vertical shaft, i.e. tower boilers [2013-01] |
F22B 23/02 | . | the water-tube, i.e. Field-tube, sets being horizontal or substantially horizontal [2013-01] |
F22B 23/04 | . | the water-tube, i.e. Field-tube, sets being vertical or substantially vertical [2013-01] |
F22B 23/06 | . |
F22B 25/00 | Water-tube boilers built-up from sets of water tubes with internally-arranged flue tubes, or fire tubes, extending through the water tubes [2013-01] |
F22B 27/00 | Instantaneous or flash steam boilers [2013-01] |
F22B 27/02 | . | built-up from fire tubes [2013-01] |
F22B 27/04 | . |
F22B 27/06 | . . | bent in serpentine or sinuous form [2013-01] |
F22B 27/08 | . . | bent helically, i.e. coiled [2013-01] |
F22B 27/10 | . . | bent spirally [2013-01] |
F22B 27/12 | . | built-up from rotary heat-exchange elements, e.g. from tube assemblies [2013-01] |
F22B 27/14 | . | built-up from heat-exchange elements arranged within a confined chamber having heat-retaining walls {(F22B 1/288 takes precedence)} [2013-01] |
F22B 27/16 | . | involving spray nozzles for sprinkling or injecting water particles on to or into hot heat-exchange elements, e.g. into tubes {(F22B 1/287 takes precedence)} [2013-01] |
F22B 27/165 | . . | {with film flow of water on heated surfaces} [2013-01] |
F22B 29/00 | Steam boilers of forced-flow type [2013-01] |
F22B 29/02 | . |
F22B 29/023 | . . | {without drums, i.e. without hot water storage in the boiler} [2013-01] |
F22B 29/026 | . . . | {operating at critical or supercritical pressure} [2013-01] |
F22B 29/04 | . | 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 [2013-01] |
F22B 29/06 | . | 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) [2013-01] |
F22B 29/061 | . . | {Construction of tube walls} [2013-01] |
F22B 29/062 | . . . | {involving vertically-disposed water tubes} [2013-01] |
F22B 29/064 | . . . | {involving horizontally- or helically-disposed water tubes} [2013-01] |
F22B 29/065 | . . . | {involving upper vertically disposed water tubes and lower horizontally- or helically disposed water tubes} [2013-01] |
F22B 29/067 | . . | {operating at critical or supercritical pressure (with recirculation during normal operation F22B 29/026)} [2013-01] |
F22B 29/068 | . . | {operating with superimposed recirculation during normal operation (F22B 29/12 takes precedence)} [2013-01] |
F22B 29/08 | . . | operating with fixed point of final state of complete evaporation {(evaporation or evaporation apparatus for physical or chemical purposes, e.g. evaporation of liquids for gas phase reactions B01B 1/005)} [2013-01] |
F22B 29/10 | . . | operating with sliding point of final state of complete evaporation {(evaporation or evaporation apparatus for physical or chemical purposes, e.g. evaporation of liquids for gas phase reactions B01B 1/005)} [2013-01] |
F22B 29/12 | . . | operating with superimposed recirculation during starting and low-load periods, e.g. composite boilers [2013-01] |
F22B 31/00 |
F22B 31/0007 | . | {with combustion in a fluidized bed (fluidized bed apparatus per se B01J 8/00; fluidized bed combustors F23C 10/00)} [2013-01] |
F22B 31/0015 | . . | {for boilers of the water tube type} [2013-01] |
F22B 31/0023 | . . . | {with tubes in the bed (F22B 31/003 takes precedence)} [2013-01] |
F22B 31/003 | . . . | {with tubes surrounding the bed or with water tube wall partitions} [2013-01] |
F22B 31/0038 | . . . . | {with tubes in the bed} [2013-01] |
F22B 31/0046 | . . | {for boilers of the shell type, e.g. with furnace box} [2013-01] |
F22B 31/0053 | . . . | {with auxiliary water tubes} [2013-01] |
F22B 31/0061 | . . | {Constructional features of bed cooling} [2013-01] |
F22B 31/0069 | . . | {Systems therefor} [2013-01] |
F22B 31/0076 | . . | {Controlling processes for fluidized bed boilers not related to a particular type} [2013-01] |
F22B 31/0084 | . . | {with recirculation of separated solids or with cooling of the bed particles outside the combustion bed} [2013-01] |
F22B 31/0092 | . . . | {with a fluidized heat exchange bed and a fluidized combustion bed separated by a partition, the bed particles circulating around or through that partition} [2013-01] |
F22B 31/02 | . | Installation of water-tube boilers in chimneys, e.g. in converter chimneys [2013-01] |
F22B 31/04 | . | Heat supply by installation of two or more combustion apparatus, e.g. of separate combustion apparatus for the boiler and the superheater respectively [2013-01] |
F22B 31/045 | . . | {Steam generators specially adapted for burning refuse} [2013-01] |
F22B 31/06 | . . | Installation of emergency heat supply [2013-01] |
F22B 31/08 | . | Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion [2013-01] |
Steam-generation plants; Control systems [2013-01] |
F22B 33/00 | Steam-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) [2013-01] |
F22B 33/02 | . | Combinations of boilers having a single combustion apparatus in common [2013-01] |
F22B 33/04 | . . | of boilers of furnace-tube type with boilers of water-tube type [2013-01] |
F22B 33/06 | . . | of boilers of furnace-tube type with boilers of fire-tube type [2013-01] |
F22B 33/08 | . . | of boilers of water tube type with boilers of fire-tube type [2013-01] |
F22B 33/10 | . . | of two or more superposed boilers with separate water volumes and operating with two or more separate water levels [2013-01] |
F22B 33/12 | . | Self-contained steam boilers, i.e. comprising as a unit the steam boiler, the combustion apparatus, the fuel storage, accessory machines and equipment [2013-01] |
F22B 33/14 | . |
F22B 33/16 | . . | of forced-flow type [2013-01] |
F22B 33/18 | . | Combinations of steam boilers with other apparatus [2013-01] |
F22B 33/185 | . . | {in combination with a steam accumulator} [2013-01] |
F22B 35/00 |
F22B 35/001 | . | {Controlling by flue gas dampers (for superheaters F22G 5/04)} [2013-01] |
F22B 35/002 | . | {Control by recirculating flue gases (for superheaters F22G 5/06)} [2013-01] |
F22B 35/004 | . | {Control systems for steam generators of nuclear power plants} [2013-01] |
F22B 35/005 | . | {Control systems for instantaneous steam boilers} [2013-01] |
F22B 35/007 | . | {Control systems for waste heat boilers} [2013-01] |
F22B 35/008 | . | {Control systems for two or more steam generators (F22D 5/36 takes precedence)} [2013-01] |
F22B 35/02 | . | for steam boilers with natural convection circulation [2013-01] |
F22B 35/04 | . . | 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 [2013-01] |
F22B 35/06 | . | for steam boilers of forced-flow type [2013-01] |
F22B 35/08 | . . | of forced-circulation type [2013-01] |
F22B 35/083 | . . . | {without drum, i.e. without hot water storage in the boiler} [2013-01] |
F22B 35/086 | . . . . | {operating at critical or supercritical pressure} [2013-01] |
F22B 35/10 | . . | of once-through type [2013-01] |
F22B 35/101 | . . . | {operating with superimposed recirculation during starting or low load periods, e.g. composite boilers (F22B 35/125 takes precedence)} [2013-01] |
F22B 35/102 | . . . | {operating with fixed point of final state of complete evaporation, e.g. in a steam-water separator} [2013-01] |
F22B 35/104 | . . . | {Control systems by injecting water (for superheaters F22G 5/12)} [2013-01] |
F22B 35/105 | . . . | {operating at sliding pressure} [2013-01] |
F22B 35/107 | . . . | {Control systems with auxiliary heating surfaces} [2013-01] |
F22B 35/108 | . . . | {Control systems for steam generators having multiple flow paths} [2013-01] |
F22B 35/12 | . . . | operating at critical or supercritical pressure [2013-01] |
F22B 35/125 | . . . . | {operating with superimposed recirculation during starting or low load periods, e.g. composite boilers} [2013-01] |
F22B 35/14 | . . | 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 [2013-01] |
F22B 35/16 | . . | responsive to the percentage of steam in the mixture of steam and water [2013-01] |
F22B 35/18 | . | Applications of computers to steam boiler control [2017-08] |
F22B 37/00 | Component parts or details of steam boilers (venting devices F16K 24/00; steam traps or like apparatus F16T) [2013-01] |
F22B 37/001 | . | {Steam generators built-up from pre-fabricated elements} [2013-01] |
F22B 37/002 | . | {specially adapted for nuclear steam generators, e.g. maintenance, repairing or inspecting equipment not otherwise provided for} [2013-01] |
F22B 37/003 | . . | {Maintenance, repairing or inspecting equipment positioned in or via the headers} [2013-01] |
F22B 37/005 | . . . | {Positioning apparatus specially adapted therefor (F22B 37/64 takes precedence)} [2013-01] |
F22B 37/006 | . . | {Walking equipment, e.g. walking platforms suspended at the tube sheet (walking mechanism per se B62D 57/02)} [2013-01] |
F22B 37/007 | . . | {Installation or removal of nuclear steam generators} [2013-01] |
F22B 37/008 | . |
F22B 37/02 | . | applicable to more than one kind or type of steam boiler [2013-01] |
F22B 37/025 | . . | {Devices and methods for diminishing corrosion, e.g. by preventing cooling beneath the dew point} [2013-01] |
F22B 37/04 | . . | and characterised by material, e.g. use of special steel alloy [2013-01] |
F22B 37/06 | . . | Flue or fire tubes; Accessories therefor, e.g. fire-tube inserts [2013-01] |
F22B 37/08 | . . . | Fittings preventing burning-off of the tube edges [2013-01] |
F22B 37/10 | . . | Water tubes; Accessories therefor (working of metal tubes B21D; pipes in general F16L; repairing leaks in water tubes F16L 55/16; F28F 11/00; baffles, screens, or deflectors formed of water tubes F23M 9/10; cleaning internal or external surfaces of water tubes F28G) [2013-01] |
F22B 37/101 | . . . | {Tubes having fins or ribs} [2013-01] |
F22B 37/102 | . . . . | {Walls built-up from finned tubes} [2013-01] |
F22B 37/103 | . . . . | {Internally ribbed tubes} [2013-01] |
F22B 37/104 | . . . | {Connection of tubes one with the other or with collectors, drums or distributors (in general F16L)} [2013-01] |
F22B 37/105 | . . . | {Penetrations of tubes through a wall and their sealing (in general F16L 5/00)} [2013-01] |
F22B 37/106 | . . . | {Studding of tubes} [2013-01] |
F22B 37/107 | . . . | {Protection of water tubes (in general F16L 57/00)} [2013-01] |
F22B 37/108 | . . . . | {Protection of water tube walls} [2013-01] |
F22B 37/12 | . . . | Forms of water tubes, e.g. of varying cross-section [2013-01] |
F22B 37/125 | . . . . | {Bifurcates} [2013-01] |
F22B 37/14 | . . . | Supply mains, e.g. rising mains, down-comers, in connection with water tubes [2013-01] |
F22B 37/141 | . . . . | {involving vertically-disposed water tubes, e.g. walls built-up from vertical tubes} [2013-01] |
F22B 37/142 | . . . . | {involving horizontally-or helically-disposed water tubes, e.g. walls built-up from horizontal or helical tubes} [2013-01] |
F22B 37/143 | . . . . | {Panel shaped heating surfaces built up from tubes (F22B 37/145 takes precedence)} [2013-01] |
F22B 37/145 | . . . . | {Flag-shaped panels built-up from tubes, e.g. from U-shaped tubes} [2013-01] |
F22B 37/146 | . . . . | {Tube arrangements for ash hoppers and grates and for combustion chambers of the cyclone or similar type out of the flues} [2013-01] |
F22B 37/147 | . . . . | {Tube arrangements for cooling orifices, doors and burners} [2013-01] |
F22B 37/148 | . . . . | {Tube arrangements for the roofs} [2013-01] |
F22B 37/16 | . . . | Return bends [2013-01] |
F22B 37/165 | . . . . | {Closures for access openings in return bends (boiler plugs for drums or headers F22B 37/223)} [2013-01] |
F22B 37/18 | . . . | Inserts, e.g. for receiving deposits from water [2013-01] |
F22B 37/20 | . . . | Supporting arrangements, e.g. for securing water-tube sets (construction of tube walls of furnaces including boiler furnaces F23M 5/08) [2013-01] |
F22B 37/201 | . . . . | {Suspension and securing arrangements for walls built-up from tubes} [2013-01] |
F22B 37/202 | . . . . | {Suspension and securing arrangements for contact heating surfaces} [2013-01] |
F22B 37/203 | . . . . . | {Horizontal tubes supported only away from their ends on vertical support tubes} [2013-01] |
F22B 37/204 | . . . . | {Supporting arrangements for individual tubes, e.g. for securing tubes to a refractory wall} [2013-01] |
F22B 37/205 | . . . . | {Supporting and spacing arrangements for tubes of a tube bundle} [2013-01] |
F22B 37/206 | . . . . . | {Anti-vibration supports for the bends of U-tube steam generators} [2013-01] |
F22B 37/207 | . . . . | {Supporting arrangements for drums and collectors} [2013-01] |
F22B 37/208 | . . . . | {Backstay arrangements} [2013-01] |
F22B 37/22 | . . | Drums; Headers; Accessories therefor (making boilers from sheet metal B21D 51/24; pressure vessels in general F16J 12/00; covers or similar closure members F16J 13/00) [2013-01] |
F22B 37/221 | . . . | {Covers for drums, collectors, manholes or the like (in general F16J 13/00)} [2013-01] |
F22B 37/222 | . . . . | {Nozzle dams introduced through a smaller manway, e.g. foldable} [2013-01] |
F22B 37/223 | . . . . | {Boiler plugs, e.g. for handholes (closures for access openings in return bends F22B 37/165)} [2013-01] |
F22B 37/225 | . . . | {Arrangements on drums or collectors for fixing tubes or for connecting collectors to each other} [2013-01] |
F22B 37/226 | . . . | {Protection of drums against combustion} [2013-01] |
F22B 37/227 | . . . | {Drums and collectors for mixing} [2013-01] |
F22B 37/228 | . . . | {Headers for distributing feedwater into steam generator vessels; Accessories therefor} [2013-01] |
F22B 37/24 | . . | Supporting, suspending, or setting arrangements, e.g. heat shielding (frames, engine beds F16M) [2013-01] |
F22B 37/242 | . . . | {for bottom supported water-tube steam generators} [2013-01] |
F22B 37/244 | . . . | {for water-tube steam generators suspended from the top} [2013-01] |
F22B 37/246 | . . . | {for steam generators of the reservoir type, e.g. nuclear steam generators} [2013-01] |
F22B 37/248 | . . . . | {with a vertical cylindrical wall} [2013-01] |
F22B 37/26 | . . |
F22B 37/261 | . . . | {specially adapted for boiler drums} [2013-01] |
F22B 37/263 | . . . | {Valves with water separators} [2013-01] |
F22B 37/265 | . . . | {Apparatus for washing and purifying steam} [2013-01] |
F22B 37/266 | . . . | {Separator reheaters} [2013-01] |
F22B 37/268 | . . . | {specially adapted for steam generators of nuclear power plants} [2013-01] |
F22B 37/28 | . . . | involving reversal of direction of flow [2013-01] |
F22B 37/283 | . . . . | {specially adapted for boiler drums} [2013-01] |
F22B 37/286 | . . . . | {specially adapted for steam generators of nuclear power plants} [2013-01] |
F22B 37/30 | . . . | using impingement against baffle separators [2013-01] |
F22B 37/303 | . . . . | {specially adapted for boiler drums} [2013-01] |
F22B 37/306 | . . . . | {specially adapted for steam generators of nuclear power plants} [2013-01] |
F22B 37/32 | . . . | using centrifugal force [2013-01] |
F22B 37/322 | . . . . | {specially adapted for boiler drums} [2013-01] |
F22B 37/325 | . . . . | {using a revolving element} [2013-01] |
F22B 37/327 | . . . . | {specially adapted for steam generators of nuclear power plants} [2013-01] |
F22B 37/34 | . . | Adaptations of boilers for promoting water circulation ({F22B 13/145 takes precedence }; auxiliary devices for promoting water circulation F22D 7/00) [2013-01] |
F22B 37/36 | . . | Arrangements for sheathing or casing boilers [2013-01] |
F22B 37/365 | . . . | {Casings of metal sheets, e.g. expansion plates, expansible joints} [2013-01] |
F22B 37/38 | . . | 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) [2013-01] |
F22B 37/40 | . . | Arrangements of partition walls in flues of steam boilers, e.g. built-up from baffles (in flues or chimneys F23J 13/00) [2013-01] |
F22B 37/42 | . . | Applications, arrangements, or dispositions of alarm or automatic safety devices (for feed-water heaters F22D 1/14 {; emergency feed-water supply F22D 11/003}; alarms responsive to undesired or abnormal conditions G08B) [2017-08] |
F22B 37/421 | . . . | {Arrangements for detecting leaks} [2013-01] |
F22B 37/423 | . . . | {Valves for testing steam generators} [2013-01] |
F22B 37/425 | . . . | {Feed-water supply alarm devices using floats} [2013-01] |
F22B 37/426 | . . . | {Feed-water supply alarm devices using electric signals} [2013-01] |
F22B 37/428 | . . . | {Feed-water supply alarm devices using dilatation of solids or liquids} [2013-01] |
F22B 37/44 | . . . |
F22B 37/443 | . . . . | {Safety devices extinguishing the fire} [2013-01] |
F22B 37/446 | . . . . | {Safety devices responsive to overpressure} [2013-01] |
F22B 37/46 | . . . | responsive to low or high water level, e.g. for checking, suppressing, extinguishing combustion in boilers (fire-fighting, fire extinction in general A62) [2013-01] |
F22B 37/47 | . . . | responsive to abnormal temperature, e.g. actuated by fusible plugs (such alarms or devices per se G08B) [2013-01] |
F22B 37/475 | . . . . | {Safety devices with fusible plugs} [2013-01] |
F22B 37/48 | . . |
F22B 37/483 | . . . | {specially adapted for nuclear steam generators} [2013-01] |
F22B 37/486 | . . . | {Devices for removing water, salt, or sludge from boilers (F22B 37/483, F22B 37/50, F22B 37/52 and F22B 37/54 take precedence)} [2013-01] |
F22B 37/50 | . . . | for draining or expelling water [2013-01] |
F22B 37/52 | . . . | Washing-out devices [2013-01] |
F22B 37/54 | . . . |
F22B 37/545 | . . . . | {Valves specially adapted therefor (valves in general F16K)} [2013-01] |
F22B 37/56 | . . | Boiler cleaning control devices, e.g. for ascertaining proper duration of boiler blow-down [2013-01] |
F22B 37/565 | . . . | {Blow-down control, e.g. for ascertaining proper duration of boiler blow-down} [2013-01] |
F22B 37/58 | . . | Removing tubes from headers or drums; Extracting tools [2013-01] |
F22B 37/60 | . | specially adapted for steam boilers of instantaneous or flash type [2013-01] |
F22B 37/62 | . | specially adapted for steam boilers of forced-flow type [2013-01] |
F22B 37/64 | . . | Mounting of, or supporting arrangements for, tube units (construction of tube walls of furnaces, e.g. boiler furnaces F23M 5/08) [2013-01] |
F22B 37/645 | . . . | {involving upper vertically-disposed water tubes and lower horizontally- or helically disposed water tubes} [2013-01] |
F22B 37/66 | . . . |
F22B 37/68 | . . . |
F22B 37/70 | . . | Arrangements for distributing water into water tubes [2013-01] |
F22B 37/72 | . . . | involving injection devices [2013-01] |
F22B 37/74 | . . . | Throttling arrangements for tubes or sets of tubes [2013-01] |
F22B 37/76 | . | Adaptations or mounting of devices for observing existence or direction of fluid flow (devices per se G01P) [2013-01] |
F22B 37/78 | . |