| Patents for F22D 1 - Feed-water heaters, e.g. preheaters (2,641) |
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| 04/27/1988 | CN87214250U Apparatus for manufacturing inclined fins |
| 04/19/1988 | CA1235344A1 Control system for economic operation of a steam generator |
| 03/22/1988 | US4732590 Flash economizer |
| 03/22/1988 | US4732004 Process for purifying and deaerating the condensate/feed water in the circulation system of a power-generating plant |
| 02/11/1988 | DE3626140A1 Method and device for heat exchange (transfer) having direct contact between the heat exchange media |
| 01/27/1988 | EP0254379A1 Boilers systems |
| 01/27/1988 | CN87203100U Hot tube coal-saving device |
| 12/16/1987 | CN87103831A Water heater |
| 12/15/1987 | US4713209 Having condensate pumps and feedwater heaters |
| 11/19/1987 | DE3616555A1 Degassing device |
| 11/04/1987 | CN87200373U Safety and nonpressure container furnace |
| 09/23/1987 | CN86101425A Atmospheric-type thermodynamic deoxidizing method without useing water vapour |
| 09/16/1987 | EP0236607A1 Heat recovery apparatus and heat recovery method |
| 09/02/1987 | EP0233998A1 Preset flue gas temperature-adjusting device |
| 09/02/1987 | CN85109346A Sulphur combustor and boiler combination |
| 08/18/1987 | US4686832 Integrated fuel cleaning and power generation |
| 07/14/1987 | US4679529 Steam generator feed water heater |
| 06/24/1987 | CN86105222A Composite system of low pressure energy saver utilizing waste heat in the exhausted smoke |
| 04/28/1987 | US4660632 Heat exchanger |
| 04/28/1987 | US4660511 Flue gas heat recovery system |
| 03/10/1987 | US4648355 Heat exchanger array for a step down return of condensate |
| 01/20/1987 | US4637350 System for recovering drain |
| 01/13/1987 | US4635588 Heaters for thermal energy transformation installations |
| 12/09/1986 | CA1214967A1 Waste heat boiler with feed mixing nozzle |
| 11/26/1986 | EP0202967A1 Feed water heater for a steam generator |
| 11/25/1986 | US4624686 Apparatus for degassing a liquid fluid |
| 10/29/1986 | EP0199179A1 Drain recovery system for condensate feedwater system of nuclear power plant |
| 10/22/1986 | CN86102780A Steam generator feed water heater |
| 10/21/1986 | US4617878 Process and device for recovery of thermal energy in a steam generating system |
| 10/01/1986 | CN85105700A Steam-water boiler for domestic purpose |
| 09/03/1986 | EP0192918A1 Preheater for a thermal-energy transformation plant |
| 07/29/1986 | US4603039 Process for making phosphorus pentoxide and optionally phosphoric acid with utilization of the reaction heat |
| 07/23/1986 | EP0188183A1 Process and device for recovering thermal energy from the exhaust gases of thermal-power stations |
| 07/22/1986 | CA1208086A1 Single drum all-welded boiler |
| 06/18/1986 | EP0184689A1 Degasification apparatus of liquids |
| 04/30/1986 | EP0179161A1 Channel for removing flue gases of a boiler device |
| 04/22/1986 | US4583494 Heat recovery apparatus and heat recovery method |
| 04/15/1986 | US4582122 Efficient waste heat recovery process from sulfur containing flue gas |
| 04/15/1986 | US4582027 Economizer recirculation for low-load stability in heat recovery steam generator |
| 03/25/1986 | US4577682 Heat exchanger |
| 03/18/1986 | US4576121 Convective heater |
| 01/29/1986 | CN85200251U Fin tube preheater with no accretion of ash |
| 11/05/1985 | US4550687 Apparatus for operating a high pressure boiler |
| 09/17/1985 | US4541366 Feed water preheater |
| 08/27/1985 | US4537157 Vertical, collector-type high-pressure feed water preheater, with a desuperheater casing |
| 08/20/1985 | US4535593 Method of and apparatus for warming high-pressure feed water heaters for power plants |
| 08/20/1985 | CA1192183A1 Combustion device having heat recovery catalytic heat exchanger |
| 06/04/1985 | US4520762 Forced through-flow steam generator |
| 05/09/1985 | WO1985001957A1 Process for the thermal treatment of liquids, respectively mixtures of liquids and solid materials for the concentration of liquid components and plant for implementing such process |
| 05/08/1985 | EP0140563A2 Process for removal of dissolved oxygen from an aqueous medium used in steam generation systems |
| 04/23/1985 | US4512496 High pressure feedwater heater closure assembly |
| 03/20/1985 | EP0134457A1 Steam power plant |
| 01/23/1985 | EP0131670A1 Feed-water preheater with a desuperheater, in particular for a thermal power plant |
| 01/09/1985 | EP0130404A2 Multi-stage heat exchanger |
| 01/02/1985 | EP0129781A2 Tube-bundle heat exchanger with a non-condensable gas removing arrangement |
| 12/25/1984 | US4489679 Control system for economic operation of a steam generator |
| 12/19/1984 | EP0128326A1 Process for the production of phosphorus pentoxide and, should the occasion arise, of phosphoric acid using reaction heat |
| 11/07/1984 | EP0123986A1 Feed-water heater |
| 09/11/1984 | US4470516 High pressure feedwater heater closure assembly |
| 09/11/1984 | US4470449 Economizer arrangement |
| 08/29/1984 | EP0116946A1 Deaerating steam condensate apparatus installed in a hot well of an electric power plant condenser |
| 08/14/1984 | US4465027 Exhaust gas vapor generator |
| 07/24/1984 | US4461346 Feedwater heater |
| 07/24/1984 | US4461244 Vertical, collector-type high-pressure feed water preheater, with desuperheater and a device for separating the steam and water phases |
| 05/01/1984 | US4445462 Waste heat boiler with feed mixing nozzle |
| 04/17/1984 | US4442800 For a furnace |
| 02/28/1984 | US4433546 Heater unit for heating water to be supplied to a boiler and a water heater |
| 02/28/1984 | US4433545 Thermal power plants and heat exchangers for use therewith |
| 02/01/1984 | EP0099658A2 Combustion devices |
| 01/18/1984 | EP0098631A1 High-pressure feed water heater disposed upright in a header construction with a desuperheater casing |
| 01/11/1984 | EP0097989A1 High pressure feedwater heater disposed upright in a header construction with a desuperheater and a steam-water separator |
| 11/09/1983 | EP0093570A2 Boiler systems |
| 09/13/1983 | US4403575 Device for preventing flashing to steam in an economizer of a flow through steam generator |
| 09/13/1983 | US4403571 Boiler with economizer heat absorption reduction |
| 08/04/1983 | WO1983002658A1 Method and device for operating a high pressure steam boiler |
| 08/03/1983 | EP0084846A1 Heat exchanger for operating a boiler installation for superheated steam |
| 07/19/1983 | US4393816 Thermodynamic method for steam-water separation |
| 06/09/1983 | WO1983001996A1 Vertical condensor and/or heat exchanger with radial steam flow, with annular and vertical water flow and with heating and degasing of the condensate |
| 03/29/1983 | CA1143616A1 Economizer |
| 01/25/1983 | CA1139958A1 Feedwater heating in a steam turbine |
| 11/09/1982 | US4357911 Rapid recovery hot water boiler |
| 10/19/1982 | US4354347 Combined cycle system for optimizing cycle efficiency having varying sulfur content fuels |
| 09/28/1982 | US4351276 Heat recovery device for boilers |
| 08/25/1982 | EP0058356A1 Element of a feed-water heater of a steam boiler and feed-water heater |
| 08/24/1982 | US4345438 Deaerator level control |
| 08/03/1982 | US4342286 Integral economizer steam generator |
| 07/06/1982 | CA1127143A1 Method of pre-heating boiler feed water |
| 05/25/1982 | US4330997 Feedwater heating in a steam turbine |
| 05/11/1982 | CA1123289A1 Feed water preheater |
| 05/11/1982 | CA1123288A1 Feed water preheater |
| 04/07/1982 | EP0049116A2 Feedwater heater |
| 03/09/1982 | US4318366 Economizer |
| 02/23/1982 | US4316434 Method and apparatus for improving heat transfer |
| 01/19/1982 | US4311013 Method of controlling condensation system of steam plant |
| 12/29/1981 | CA1115146A1 Apparatus for emergency cooling of the steam generator unit of a nuclear power plant |
| 12/15/1981 | US4305452 Method of pre-heating boiler feed water |
| 09/30/1981 | EP0036565A1 Waste-heat recovery apparatus for boilers |
| 06/16/1981 | US4272964 Steam generating apparatus |
| 03/24/1981 | US4257360 Feed water preheater |
| 03/10/1981 | US4254825 Multitubular heat exchanger |