| Patent Number |
Title Of Patent |
Date Issued |
| D359117 |
Tubing assembly unit for boilers for use in connection with combustion on pressurized fluidizied |
June 6, 1995 |
|
| D358879 |
Tubing assembly unit for boilers for use in connection with combustion on pressurized fluidized |
May 30, 1995 |
|
| D353666 |
Tubing assembly unit for boilers for use in connection with combustion on pressurized fluidized |
December 20, 1994 |
|
| D342124 |
Boiler for a combustion plant having a pressurized fluidized bed |
December 7, 1993 |
|
| 6389995 |
Method of combustion and a combustion plant in which absorbent is regenerated |
May 21, 2002 |
| A method of combustion and a combustion plant in which absorbent is regenerated is described herein. During the combustion of a fuel in a combustion chamber enclosing a fluidized bed, a fuel and an absorbent are supplied to the fluidized bed. The combustion gases generated during the |
| 6260492 |
Method and apparatus for burning fuel in the free board of a pressurized fluidized bed with soli |
July 17, 2001 |
| A method of combustion in a pressurized, fluidized bed and in the freeboard thereof. The combustion method is further characterized by the recirculation of solid sulfur absorbing materials. A gas channel, designed so as to prevent fluidizing gas from entering the channel from below, is |
| 6260346 |
Combustion plant and a method of combusting a fuel |
July 17, 2001 |
| A method of combusting a fuel, and a combustion plant are proposed. The combustion plant comprises a first circuit (1) with a gasifying reactor (3) to produce a combustible gas and a degassed, combustible rest product from the fuel. The combustible gas is supplied to a first combustion |
| 6247301 |
Gasifier and a power plant |
June 19, 2001 |
| A power plant is disclosed having a combustion chamber (1) in which the combustion of a combustible material is performed, while forming hot combustion gases to drive a gas turbine device (14, 20, 27). A topping combustion device (8, 23) is arranged to receive the combustion gas and |
| 5971010 |
Shaft device and a method of cooling a shaft device |
October 26, 1999 |
| A shaft device for a valve, comprises a shaft supported in a bearing and extending into a relatively warm space, a sleeve provided between the shaft and the bearing, and cooling channels arranged in the border area between the shaft and the sleeve for cooling of the bearing, and wherein |
| 5868083 |
Method and device for feeding fuel into a fluidized bed |
February 9, 1999 |
| To a fluidized combustor bed there is passed particulate fuel via a fuel flow distributor which comprises a vessel for receiving a particular fuel from a fuel storage. The fuel is fed into the vessel of the fuel flow distributor from the fuel storage, whereupon the fuel is fluidized in a |
| 5755166 |
Method and device for after-burning of particulate fuel in a power plant |
May 26, 1998 |
| In a power plant with combustion of particulate fuel in a fluidized bed, unburnt particles are after-burnt in a burner which is based on the principle of vortex collapse and coarser particles are separated in connection with the after-burning. Such a burner may be designed as a doubl |
| 5707198 |
Method and device for discharging particulate material from a pressurized container |
January 13, 1998 |
| A method of discharging particulate material from a first container to a lower positioned storage area being under a lower pressure than the first container. Particulate material is discharged via an upper tube section of a discharge tube communicating with the first container and perman |
| 5680752 |
Gas turbine plant with additional compressor |
October 28, 1997 |
| A method of adjusting capacity of air flow to a pressurized combustor in a gas turbine plant having a first compressor driven by a gas turbine, which is in turn driven by gases generated during combustion of a fuel in the combustor is disclosed comprising providing a second compressor lo |
| 5634329 |
Method of maintaining a nominal working temperature of flue gases in a PFBC power plant |
June 3, 1997 |
| A method for maintaining a nominal working temperature of flue gases during operation of a PFBC power plant having a pressure vessel with a combustor enclosed therein for combustion of a fuel in a fluidized bed, a gas turbine for receiving flue gases formed during the combustion in the |
| 5597628 |
Lining |
January 28, 1997 |
| An inner liner for a tubular casing, with the casing having a support means for coaxially supporting the liner within the casing. The liner has an axis and is made of material having a different coefficient of linear expansion than the casing, and comprises at least one tubular section |
| 5518529 |
Method and device for ash discharge |
May 21, 1996 |
| A method of feeding out dust in a dust discharge system in a power plant including feeding out dust pneumatically from a separator via a suction nozzle by using transport gas with a pressure exceeding atmospheric pressure, supplying diluting gas into the transport gas at a location c |
| 5503661 |
Method and device in a filter valve |
April 2, 1996 |
| A method and a device are provided for cutting off a gas flow through a filter element in a ceramic filter of high-temperature type upon breakage of the filter element, wherein a pulling member which is fixed to the lowermost part of the filter element causes a valve to be closed upon |
| 5490469 |
Method and apparatus for heating the bed material in a PFBC plant |
February 13, 1996 |
| A method of heating of bed material in a PFBC plant including a combustor and wherein bed level adjustment due to a load change is accomplished by injecting bed material into or discharging it from the combustor through feeding devices, the method including the steps of arranging two sto |
| 5477683 |
Method and device during starting and low-load operation of a once-through boiler |
December 26, 1995 |
| A method for use during starting and/or low-load operation of a once-through boiler. The method includes the steps of generating steam in a steam generator; separating water from the steam in a moisture separator; heating the steam in a superheater and feeding the steam to a high-pre |
| 5457952 |
Air flow control system in PFBC plants |
October 17, 1995 |
| Air flow is controlled in a PFBC plant comprising a combustor and a pressure vessel, a two-shaft gas turbine consisting of a low-pressure compressor LC and a low-pressure turbine LT interconnected by a shaft and a high-pressure compressor HC and a high-pressure turbine interconnected |
| 5435122 |
Temperature control method and apparatus for the air supply in PFBC plants |
July 25, 1995 |
| A method for temperature control of an air supply in PFBC plants which comprise a low-pressure unit including a low-pressure compressor and a low-pressure turbine, a high-pressure unit including a high-pressure compressor and a high-pressure turbine, wherein air is sucked into the lo |
| 5406785 |
Method and a device in a PFBC power plant |
April 18, 1995 |
| A method and device for maintaining a high gas temperature to a gas turbine in a partial-load operation of a PFBC power plant, wherein gas is normally fed out from a fluidized bed through at least one central channel in a combustor which combustor also includes tubes for cooling the bed |
| 5400725 |
Method and device for feeding particulate material into a pressurized container |
March 28, 1995 |
| A method of feeding particulate material into a pressurized fluidized bed combustor including the steps of: feeding the particulate material from a source which is at a substantially lower pressure than that existing in the pressurized fluidized bed combustor into the upper end of an elo |
| 5398644 |
Temperature measurement at evaporator outlet |
March 21, 1995 |
| A method and a device for temperature measurement of the fluid at the outlet from an evaporator in a boiler of benson type, wherein the evaporator includes one or more inlet headers which are supplied with water passed on to evaporator tubes which communicate with a heat-transferring |
| 5377627 |
Fluidized bed combustor, equipped with means for improving the distribution of fuel and gases |
January 3, 1995 |
| Distributor device comprises at least one lower and/or one upper stationary distributor device for distribution of fuel in the form of gas and particles in a fluidized bed and is arranged above fuel feed nozzles in the bed, or at or above the upper limit of the bed. The task of the d |
| 5347814 |
Steam system in a multiple boiler plant |
September 20, 1994 |
| A boiler plant, comprising at least a first boiler and a second boiler. The first boiler comprises a first superheater and a first reheater for generation and heating of steam. The second boiler comprises a second superheater and a second reheater for generation and heating of steam. A |
| 5331804 |
System for starting a power plant |
July 26, 1994 |
| The present invention comprises an apparatus in a power plant having a combustion chamber for combustion of a fuel at overpressure, a turbine driven by generated combustion gases, a compressor driven by the turbine for compression of combustion air, a generator driven by the turbine and |
| 5330320 |
Method and a device in a rotating machine |
July 19, 1994 |
| A method and a device for controlling the blade tip clearance in a rotating machine where the machine comprises a turbine part and a compressor part separate from the turbine part and the stator housing of the turbine part is formed with a stator cone. The invention is characterized in t |
| 5329892 |
Frame for bed vessel |
July 19, 1994 |
| A frame structure is provided for a bed vessel in an energy plant with higher or lower pressure in the bed vessel in relation to the surrounding space. The walls of the bed vessel are stiffened by surrounding horizontally extending, continuous frames with stiff corners, beams in the |
| 5304362 |
Method in cleaning flue gas in a PFBC plant including a gas turbine driven thereby |
April 19, 1994 |
| The invention refers to a method in cleaning flue gas in a PFBC plant including a gas turbine driven thereby, wherein the reduction of the NO.sub.x content in the flue gas is accomplished by thermal reduction by injecting ammonia into the flue gas flow to the gas turbine and then acc |
| 5261354 |
PFBC power plant |
November 16, 1993 |
| A PFBC power plant with a combustor (3) enclosed within a pressure vessel (1). The combustor (3) is formed as a polygonal prism with, for example, hexagonal cross section. The bed section (3a) of the combustor (3) accomodates a steam generator constructed from at least three groups (23) |
