Class 122/1B - Once through

Subclass of Class 122 - Liquid heaters and vaporizers
No. of patents: 26
Last issue date: 06/14/2011

Number	Title	Issue Date
7958852	Once-through boiler Disclosed herein is a once-through boiler capable of achieving a steep increase in temperature of steam via reheating of the steam within a combustion chamber, thereby improving heat and energy efficiency. The boiler comprises a body (110), a steam supply uni...	06/14/2011
7406928	Horizontally constructed continuous steam generator and method for the operation thereof The invention relates to a continuous steam generator provided, in a duct for hot gas circulating in a substantially horizontal direction, with a continuous heating surface of an evaporator comprising a plurality of steam generator tubes which are mounted in paralle...	08/05/2008
7383791	Continuous steam generator and method for operating said continuous steam generator The invention relates to a continuous steam generator wherein an evaporator throughflow heating surface is disposed in a gas duct which can be cross flown in an approximately vertical manner in a heating gas device, said evaporator throughflow heating surface compri...	06/10/2008
7331313	Continuous steam generator with circulating atmospheric fluidised-bed combustion A continuous steam generator with a circulating atmospheric fludized-bed chamber is defined by encircling walls essentially on all sides, comprised of gas-permeable tubular walls provided with essentially vertical tubes, and comprises at least one funnel in its lowe...	02/19/2008
7270086	Steam generator A stream generator wherein a continuous evaporating heating surface is disposed in a heating gas duct through which a heating gas flows in an approximately horizontal manner. The continuous evaporating heating surface comprises a plurality of steam-generating pipes ...	09/18/2007
7251939	General method for disposal of produced water A method and apparatus useful for disposing of the high volumes of produced water associated with coal bed methane natural gas wells. The method taught is to create steam from the produced water and vent the steam into the atmosphere. The apparatus taught utilizes a...	08/07/2007
6715450	Fossil-fuel fired continuous-flow steam generator A continuous-flow steam generator includes a combustion chamber with evaporator tubes for fossil fuel. The combustion chamber is followed on the fuel-gas side, via a horizontal gas flue, by a vertical gas flue. When the continuous-flow steam generator is in operatio...	04/06/2004
6675747	System for and method of generating steam for use in oil recovery processes A once-through boiler system for use in conjunction with a combustion chamber includes a water inlet through which water having a high total dissolved solids content is supplied to the system, at least one tubular preheating surface for preheating the wat...	01/13/2004
6557499	Fossil-fuel-fired once-through steam generator The steam generator has a combustion chamber for fossil fuel. A vertical gas flue is arranged downstream of the combustion chamber on a heating-gas side and connected via a horizontal gas flue. The structure requires especially little outlay in terms of m...	05/06/2003
6481386	Fossil-fired continuous-flow steam generator A continuous-flow steam generator includes a combustion chamber with evaporator tubes for fossil fuel. The combustion chamber is followed on the fuel-gas side by a vertical gas flue through a horizontal gas flue. When the continuous-flow steam generator i...	11/19/2002
6446580	Fossil fuel-fired continuous-flow steam generator The fossil fuel fired continuous-flow steam generator has a gas turbine combustion chamber for fossil combustibles. On the heating gas side a vertical gas extractor is mounted downstream of a horizontal gas extractor. The walls surrounding the combustion ...	09/10/2002
6427636	Method and plant for heating a liquid medium The invention relates to a method of heating a liquid medium by means of a first thermal system (2, 3, 4, 7, 12, 13) and at least one second thermal system (5, 6, 6A, 15, 16) following said first thermal system (2, 3, 4, 7, 12, 13), which thermal systems ...	08/06/2002
6401667	Method and plant for heating a liquid medium A method of heating a liquid medium by means of a first thermal system and at least one second thermal system following the first thermal system and a plant for carrying out the method. The thermal systems each have at least one heat exchanger through whi...	06/11/2002
6250257	Method for operating a once-through steam generator and once-through steam generator for carrying out the method A once-through steam generator having a combustion chamber. A containing wall of the combustion chamber is formed from vertically disposed evaporator tubes welded to one another in a gas-tight manner. The combustion chamber is to be capable of being used ...	06/26/2001
6250258	Method for starting up a once-through heat recovery steam generator and apparatus for carrying out the method A separator (8) is arranged downstream of the superheater section (4) of the once through heat recovery steam generator (1). A branch line (9) running to the separator (8) is branched off from an outflow line (5) running from the superheater section (4) t...	06/26/2001
6213059	Technique for cooling furnace walls in a multi-component working fluid power generation system A technique for cooling furnace walls in a multi-component working fluid power generation system is disclosed. In a first embodiment, the technique involves removing process heat from a furnace having an inner tubular wall and an outer tubular wall. In a ...	04/10/2001
6192837	Once-through steam generator and method for starting up a once-through steam generator In a once-though steam generator having a double-flue configuration, a first gas flue is followed on the fuel-gas side, by way of a horizontal gas flue, by a second gas flue. In a once-through steam generator of this type, which is to have a particularly ...	02/27/2001
6173679	Waste-heat steam generator For achieving a high plant efficiency, a waste-heat steam generator, in particular for a combined-cycle power plant, has a number of heating surfaces heatable by a flue gas and carrying a medium to be heated. The steam generator can be operated at critica...	01/16/2001
5979549	Method and apparatus for viscosity reduction of clogging hydrocarbons in oil well Method and apparatus for reducing the viscosity of clogging hydrocarbons in an oil well. The apparatus is preferably trailer mounted for portability. It includes a tube type heat exchanger enabling heated gases to pass within feed water coils to heat the ...	11/09/1999
5967097	Once-through steam generator and a method of configuring a once-through steam generator The combustion chamber of a once-through steam generator is formed with walls of vertical tubes through which a flow medium flows from the bottom upwards. The tubes have a surface structure on their inner wall surfaces. Particularly favorable mass flow de...	10/19/1999
5924389	Heat recovery steam generator The water flow circuit for a heat recovery steam generator includes both a low pressure circuit and a high pressure circuit. Both circuits are designed for once-through flow and both include evaporators with rifled tubing. A pressure equalizing header may...	07/20/1999
5906178	Degree of separation of steam impurities in a steam/water separator In a once-through steam generator, a separating bottle (25) is inserted between the evaporator (22) and the superheater (23). To purify the water/steam circuit, a greater quantity of water than is necessary is conveyed through the evaporator (22) via a fe...	05/25/1999
4632064	Boiler A boiler having a discharge gas duct divided into a plurality of passages, respective passages having reheaters and superheaters therein. Gas flow controllers are provided for adjusting combustion gas flow through the respective passages. Evaporators are ...	12/30/1986
4627386	Steam generators and combined cycle power plants employing the same A compact, unfired, staggered tube, once-through steam generator or boiler of simple construction intended primarily for combined cycle power plants in which the thermal energy utilized to generate steam is obtained from the exhaust gases of a gas turbine...	12/09/1986
4403571	Boiler with economizer heat absorption reduction The steam generator includes means for limiting the heat absorption of the economizer 28 during start-up and low load operation. An air bypass duct 54 is located to convey air from cold air duct 46 at a location between forced draft fan 44 and air heater ...	09/13/1983
4262636	Method of starting a forced-flow steam generator At the start up of the forced-flow steam generator, water is supplied through a line into a radiation-heated superheater heating surface while the by-pass valve connected to the output line of the final superheater is closed. This produces a steam cushion...	04/21/1981

PatentStorm

Bizarre Patents

PatentStorm News

Class 122/1B - Once through