F01KSTEAM ENGINE PLANTSSTEAM ACCUMULATORSENGINE PLANTS NOT OTHERWISE PROVIDED FORENGINES USING SPECIAL WORKING FLUIDS OR CYCLES gas-turbine or jet-propulsion plants F02; nuclear power plants, engine arrangements therein G21DAttention is drawn to the notes preceding class F01, especially as regards the definitions of "steam" and "special vapour".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. F01K1/00 F01K1/00Steam accumulators use of accumulators in steam engine plants F01K3/00 F01K1/02for storing steam otherwise than in a liquid F01K1/04for storing steam in a liquid, e.g. Ruth's type in alkali to increase steam pressure F22B1/20 F01K1/06Internal fittings facilitating steam distribution, steam formation, or circulation acting during charging or discharging F01K1/08; fittings facilitating circulation through multiple accumulators F01K1/14 F01K1/08Charging or discharging of accumulators with steam peculiar to multiple accumulators F01K1/12 F01K1/10specially adapted for superheated steam F01K1/12Multiple accumulatorsCharging, discharging or control specially adapted therefor F01K1/14Circulation F01K1/16Other safety or control means F01K1/18for steam pressure F01K1/20Other steam-accumulator parts, details, or accessories F01K3/00Steam engine plants F01K3/00Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein regenerating exhaust steam F01K19/00 F01K3/002Steam conversion F01K3/004Accumulation in the liquid branch of the circuit F01K3/006Accumulators and steam compressors F01K3/008Use of steam accumulators of the Ruth type for storing steam in water; Regulating thereof Ruth accumulators per se F01K1/04 F01K3/02Use of accumulators and specific engine typesControl thereof F01K3/04the engine being of multiple-inlet-pressure type F01K3/06the engine being of extraction or non-condensing type F01K3/004 takes precedence F01K3/08Use of accumulators and the plant being specially adapted for a specific use F01K3/10for vehicle drive, e.g. for accumulator locomotives F01K3/12having two or more accumulators F01K3/14having both steam accumulator and heater, e.g. superheating accumulator steam superheaters per se F22G F01K3/16Mutual arrangement of accumulator and heater F01K3/18having heaters having both steam accumulator and heater F01K3/14; steam heaters per se F22 F01K3/181using nuclear heat F01K3/26 takes precedence F01K3/183one heater being a fired superheater F01K3/185using waste heat from outside the plant F02G5/00 takes precedence F01K3/186using electric heat F01K3/188using heat from a specified chemical reaction F01K3/20with heating by combustion gases of main boiler F01K3/205more than one circuit being heated by one boiler F01K3/22Controlling, e.g. starting, stopping F01K7/00, F01K13/02 take precedence F01K3/24with heating by separately-fired heaters F01K3/242delivering steam to a common mains F01K3/245delivering steam at different pressure levels F01K3/247 takes precedence F01K3/247one heater being an incinerator F01K3/26with heating by steam F01K3/262by means of heat exchangers F01K3/265using live steam for superheating or reheating F01K3/267by mixing with steam, e.g. LOFFLER-boiler F01K5/00Plants characterised by use of means for storing steam in an alkali to increase steam pressure, e.g. of Honigmann or Koenemann type F01K5/02used in regenerative installation F01K7/00Steam engine plants characterised by the use of specific types of engine F01K3/02 takes precedencePlants or engines characterised by their use of special steam systems, cycles or processes reciprocating-piston engines using uniflow principle F01B17/04Control means specially adapted for such systems, cycles or processesUse of withdrawn or exhaust steam for feed-water heating F01K7/02the engines being of multiple-expansion type the engines being only of turbine type F01K7/16; the engines using steam of critical or overcritical pressure F01K7/32; the engines being of extraction or non-condensing type F01K7/34 F01K7/025Consecutive expansion in a turbine or a positive displacement engine F01K7/04Control means specially adapted therefor F01K7/06the engines being of multiple-inlet-pressure type F01K7/02 takes precedence; the engines being only of turbine type F01K7/16; the engines using steam of critical or over-critical pressure F01K7/32; the engines being of extraction or non-condensing type F01K7/34 F01K7/08Control means specially adapted therefor F01K7/10characterised by the engine exhaust pressure the engines being only of turbine type F01K7/16; the engines using steam of critical or over-critical pressure F01K7/32; the engines being of extraction or non-condensing type F01K7/34 F01K7/12of condensing type F01K7/14Control means specially adapted therefor F01K7/16the engines being only of turbine type the engines using steam of critical or overcritical pressure F01K7/32; the engines being of extraction or non-condensing type F01K7/34 F01K7/165Controlling means specially adapted therefor F01K7/18the turbine being of multiple-inlet-pressure type F01K7/20Control means specially adapted therefor F01K7/22the turbines having inter-stage steam heating F01K7/223Inter-stage moisture separation F01K7/226Inter-stage steam injection F01K7/24Control or safety means specially adapted therefor F01K7/26the turbines having inter-stage steam accumulation F01K7/28Control means specially adapted therefor F01K7/30the turbines using exhaust steam only F01K7/32the engines using steam of critical or overcritical pressure F01K7/34the engines being of extraction or non-condensing typeUse of steam for feed-water heating feed-water heaters in general F22D F01K7/345Control or safety-means particular thereto F01K7/36the engines being of positive-displacement type F01K7/38the engines being of turbine type F01K7/40Use of two or more feed-water heaters in series F01K7/42Use of desuperheaters for feed-water heating F01K7/44Use of steam for feed-water heating and another purpose F01K9/00Plants characterised by condensers arranged or modified to co-operate with the engines by condensers structurally combined with engines F01K11/00; steam condensers per se F28BF01K23/04 takes precedence F01K9/003condenser cooling circuits F01K9/006Vacuum-breakers F01K9/02Arrangements or modifications of condensate or air pumps F01K9/023Control thereof F01K9/026Returning condensate by capillarity F01K9/04with dump valves to by-pass stages F01K11/00Plants characterised by the engines being structurally combined with boilers or condensers F01K11/02the engines being turbines F01K11/04the boilers or condensers being rotated in use F01K13/00General layout or general methods of operation of complete plants F01K13/003Arrangements for measuring or testing in general G01 F01K13/006Auxiliaries or details not otherwise provided for F01K13/02Controlling, e.g. stopping or starting F01K13/025Cooling the interior by injection during idling or stand-by F01K15/00Adaptations of plants for special use F01K7/02 takes precedence F01K15/02for driving vehicles, e.g. locomotives arrangements in vehicles, see the relevant vehicle classes F01K15/025the vehicle being a steam locomotive F01K15/04the vehicles being waterborne vessels F01K15/045Control thereof F01K3/22, F01K7/00, F01K13/02 take precedence F01K17/00Using steam or condensate extracted or exhausted from steam engine plant for heating feed-water F01K7/34; returning condensate to boiler F22D F01K7/36 takes precedence F01K17/005by means of a heat pump heat pumps systems per se F25B F01K17/02for heating purposes, e.g. industrial, domestic F01K17/06 takes precedence; domestic- or space-heating systems, e.g. central-heating systems, in general F24D1/00, F24D3/00, F24D9/00 F01K17/025in combination with at least one gas turbine, e.g. a combustion gas turbine F01K17/04for specific purposes other than heating F01K17/06 takes precedence F01K17/06Returning energy of steam, in exchanged form, to process, e.g. use of exhaust steam for drying solid fuel or plant F01K19/00Regenerating or otherwise treating steam exhausted from steam engine plant F01K3/006 takes precedence plants characterised by use of means for storing steam in an alkali to increase steam pressure F01K5/00; returning condensate to boiler F22D F01K19/02Regenerating by compression F01K19/04in combination with cooling or heating F01K19/06in engine cylinder F01K19/08compression done by injection apparatus, jet blower, or the like F01K19/10Cooling exhaust steam other than by condenserRendering exhaust steam invisible F01K21/00Steam engine plants not otherwise provided for F01K21/005using mixtures of liquid and steam or evaporation of a liquid by expansion F01K21/02with steam-generation in engine-cylinders F01K21/04using mixtures of steam and gasPlants generating or heating steam by bringing water or steam into direct contact with hot gas F01K25/005, F02B47/02 take precedence; injecting water or steam into a as gas turbine plant F02C3/305; direct-contact steam generators in general F22B F01K21/042pure steam being expanded in a motor somewhere in the plant F01K21/045 takes precedence F01K21/045Introducing gas and steam separately into the motor, e.g. admission to a single rotor through separate nozzles F01K21/047having at least one combustion gas turbine F01K21/06Treating live steam, other than thermodynamically, e.g. for fighting deposits in engine F01K23/00Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids F01K23/02the engine cycles being thermally coupled F01K23/04condensation heat from one cycle heating the fluid in another cycle F01K23/06combustion heat from one cycle heating the fluid in another cycle F01K23/061with combustion in a fluidised bed plants with a fluidised-bed combustor comprising only gas-turbines F02C3/205; fluidised-bed apparatus per se B01J8/18; fluidised-bed combustors F23C10/00; fluidised-bed steam-boilers F22B31/0007 F01K23/062the combustion bed being pressurised pressurised fluid bed combustion per se F23C10/16 F01K23/064in combination with an industrial process, e.g. chemical, metallurgical particularly adapted for a specific process see the relevant classes F01K23/065the combustion taking place in an internal combustion piston engine, e.g. a diesel engine F01K23/067the combustion heat coming from a gasification or pyrolysis process, e.g. coal gasification gas turbines with fuel gasifiers F02C3/28 F01K23/068in combination with an oxygen producing plant, e.g. an air separation plant F01K23/08with working fluid of one cycle heating the fluid in another cycle F01K23/10with exhaust fluid of one cycle heating the fluid in another cycle F01K17/025 takes precedence F01K23/101Regulating means specially adapted therefor F01K23/105, F01K23/108 take precedence F01K23/103with afterburner in exhaust boiler F01K23/105Regulating means specially adapted therefor F01K23/106with water evaporated or preheated at different pressures in exhaust boiler F01K23/108Regulating means specially adapted therefor F01K23/12the engines being mechanically coupled F01K23/02 takes precedence F01K23/14including at least one combustion engine F01K23/16all the engines being turbines F01K23/14 takes precedence F01K23/18characterised by adaptation for specific use F01K25/00Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for F01K25/005the working fluid being steam, created by combustion of hydrogen with oxygen F01K25/02the fluid remaining in the liquid phase F01K25/04the fluid being in different phases, e.g. foamed F01K25/06using mixtures of different fluids plants using mixtures of steam and gas F01K21/04 F01K25/065with an absorption fluid remaining at least partly in the liquid state, e.g. water for ammonia F01K5/00 takes precedence F01K25/08using special vapours F01K25/085the vapour being sulfur F01K25/10the vapours being cold, e.g. ammonia, carbon dioxide, ether F01K25/103Carbon dioxide F01K25/065 takes precedence F01K25/106Ammonia F01K25/065 takes precedence F01K25/12the vapours being metallic, e.g. mercury F01K25/14using industrial or other waste gases F01K27/00Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for F01K27/005by means of hydraulic motors F01K27/02Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat