| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 122459000 | STEAM TREATMENT | 20 |
| 122460000 | Boilers with superheaters | 1 |
| 20130098313 | SYSTEM AND APPARATUS FOR CONTROLLING TEMPERATURE IN A HEAT RECOVERY STEAM GENERATOR - A system that controls temperature in a heat recovery steam generator (HRSG). One heat recovery steam generator system may include a first exhaust path. The heat recovery steam generator system also may include a second exhaust path. The heat recovery steam generator system may include a first damper configured to selectively allow a portion of an exhaust to flow through the second exhaust path. | 04-25-2013 |
| 122000000 | Water tube boiler | 3 |
| 122476000 | Superheater | 3 |
| 20100263607 | DESUPERHEATER FOR A STEAM TURBINE GENERATOR - A system for generating steam for a turbine of an electric generator includes a superheater that receives steam from a boiler and that superheats the steam. All or a portion of the superheated steam from the superheater is then passed through a heat exchanger to transfer some of the heat energy in the superheated steam to a flow of water. This reduces a temperature of the superheated steam to a temperature that is suitable for the turbine. The water heated in the heat exchanger can be condensed water that has already passed through the turbine, and the water heated in the heat exchanger can be routed to the boiler, where it is re-cycled back into steam. | 10-21-2010 |
| 20110180024 | STEAM BOILER WITH RADIANTS - Apparatuses and methods for producing steam are provided. A steam boiler system may include a steam boiler. The steam boiler may comprise an enclosure with a burner, first and second fluid conveyance members, and one or more radiants therein. The burner produces hot combustion gases which warm the fluid conveyance members and thereby the fluid therein. The radiants are also heated by the combustion gases, and they thereby emit radiation which is absorbed by the fluid conveyance members and/or the fluid therein. The boiler system may additionally comprise a steam separator which separates out a steam component. The steam component can be directed back through the enclosure in a third fluid conveyance member to expand the steam before being fed to a steam engine to produce power. | 07-28-2011 |
| 20140261248 | STEAM GENERATOR FOR PRODUCING SUPERHEATED STEAM IN A WASTE INCINERATION PLANT - A steam generator for producing superheated steam in a waste incineration plant, includes a boiler housing having a combustion chamber with walls having an evaporator. The evaporator has tubes carrying water and being acted upon by heat energy released during incineration of waste, for producing superheated steam. A wall superheater for increasing temperature of the superheated steam includes a plurality of tubes in a wall of the boiler housing for carrying superheated steam being protected against flue gas from an incineration process by plate-like elements formed of a corrosion-proof material. The boiler housing includes an evaporator housing section having the water-carrying tubes and a wall-superheater housing section spatially separated from the evaporator housing section and having the superheated steam-carrying tubes. The wall-superheater housing section is movable relative to and disposed downstream of the evaporator housing section in flue gas flow direction. | 09-18-2014 |
| 122000000 | Superheater | 11 |
| 122480000 | Damper-controlled | 1 |
| 20100192876 | BOILER AND METHOD FOR ADJUSTING TEMPERATURE OF STEAM OUTPUT FROM BOILER - A boiler according to the present invention is a boiler configured to make combustion gas originating from combustion in a burner ( | 08-05-2010 |
| 122481000 | Firebox | 3 |
| 20130008394 | Radiant Superheater - A radiant superheater arranged to hang at the upper portion of a furnace of a boiler. The radiant superheater is substantially planar and includes a first vertical pass, a first connection pass, a second vertical pass, a third vertical pass, a second connection pass, and a fourth vertical pass. Each vertical pass includes an upper end and a lower end. The vertical passes are connected in series, so that steam to be superheated enters at the upper end of the first vertical pass and flows through the first vertical pass and from the lower end of the first vertical pass via the first connection pass to the lower end of the second vertical pass and through the second vertical pass and from the upper end of the second vertical pass to the upper end of the third vertical pass and through the third vertical pass and from the lower end of the third vertical pass via the second connection pass to the lower end of the fourth vertical pass and through the fourth vertical pass, to be discharged from the upper end of the fourth vertical pass. The first connection pass is arranged below the second connection pass so as to shield the second connection pass from radiation from the lower portion of the furnace. | 01-10-2013 |
| 20130068175 | BOILER AND A SUPERHEATER, AS WELL AS A METHOD - A boiler and a method in a boiler producing thermal energy, the method including: combustion or fuel and combustion air in the furnace of the boiler, delimited by walls; receiving of thermal energy by a steam superheater placed on the wall of the furnace and including at least one heat exchange surface, and supplying of gas or a gas mixture to the front of said heat exchange surface to form a barrier layer for protecting the heat exchange surface from flue gases developed in connection with the combustion. At least one supply device is provided in the superheater or in the direct vicinity of the superheater, to supply gas or a gas mixture to the front of said heat exchange surface to form a barrier layer to protect the heat exchange surface from the flue gases in the boiler. | 03-21-2013 |
| 20150122201 | STEAM BOILER COMPRISING A RADIATION ELEMENT - A steam boiler has at least one water and/or steam conveying element and at least one radiation element, which is an un-cooled element, arranged in the flow of hot flue gases, such that it is convectively heated by the flue gases. The radiation element is located at a pre-determined distance from the at least one water and/or steam conveying element, wherein the pre-determined distance is arranged such that the flow of hot flue gases between the radiation element and the water and/or steam conveying element is unhindered, and such that the water and/or steam conveying element is heated by heat radiation from the radiation element. | 05-07-2015 |
| 122482000 | Fire tube in steam space | 1 |
| 20090126654 | Device for Generating the Superheated Steam - The present invention relates to a device for generating superheated steam, comprising: a housing ( | 05-21-2009 |
| 122483000 | Indirectly heated | 2 |
| 20110005471 | MOISTURE SEPARATOR REHEATER - A moisture separator reheater ( | 01-13-2011 |
| 20130000567 | MOISTURE SEPARATOR AND REHEATER - There are formed inside a casing, a steam receiving chamber, a supply manifold chamber, a moisture separating chamber, a heating chamber adjacent to the steam receiving chamber in an axial direction and housing a heat exchanger tube group, and a collection manifold chamber communicating with the heating chamber and adjacent to an upper part of the steam heating chamber. The steam receiving chamber and the partition panel are separated by a transverse partition panel which extends in a vertical direction and through which an end of the heat exchanger tube group in the axial direction penetrates, and a shroud that shrouds the end of the heat exchanger tube group penetrating the transverse partition panel. The steam receiving and the collection manifold chambers are separated by a ceiling panel. A panel bonded to the ceiling panel, the transverse partition panel, and the shroud is provided in the steam receiving chamber. | 01-03-2013 |
| 122485000 | Separate furnace | 1 |
| 20170234529 | METHOD AND APPARATUS FOR IMPROVED FIRING OF BIOMASS AND OTHER SOLID FUELS FOR STEAM PRODUCTION AND GASIFICATION | 08-17-2017 |
| 122487000 | Water-injected | 3 |
| 20120017852 | DESUPERHEATERS HAVING VORTEX SUPPRESSION - Desuperheaters having vortex suppression are described herein. An example desuperheater includes a body portion having a passageway to provide cooling water to a fluid flow path and vortex suppression device adjacent an end of the body. The vortex suppression device is disposed within the fluid flow path to attenuate or suppress vortex shedding or flow induced vibrations imparted on the desuperheater by a fluid in the fluid flow path. | 01-26-2012 |
| 20140209044 | BYPASS STEAM LINE - A mixing unit for mixing water with steam in a bypass station is provided. The mixing unit has a plurality of Laval nozzles arranged in the mixing unit, which Laval nozzles are displaced axially with respect to one another in a water steam direction, with the result that the noise emissions are reduced overall. | 07-31-2014 |
| 20150128882 | DESUPERHEATER AND SPRAY NOZZLES THEREFOR - A steam assisted ring style desuperheater includes a ring body defining an axial flow path and one or more spray nozzles extending through a wall of the ring body. Each of the nozzles is connected to a separate cooling water manifold and atomizing steam manifold to conduct cooling water and atomizing steam separate from each other through the spray nozzle to an injection point. An atomizing head of each nozzle combines the cooling water and atomizing steam to form a spraywater cloud that is injected radially into the axial flow path. The spray nozzles include one or more flow passage inserts that define separate first and second fluid flow paths for conducting the cooling water and the atomizing steam separately through the spray nozzle. | 05-14-2015 |
| 122479100 | Automatic heat regulation of superheater | 5 |
| 20100077970 | INTER-STAGE ATTEMPERATION SYSTEM AND METHOD - Systems and methods for controlling exhaust steam temperatures from a finishing superheater are provided. In certain embodiments, the system includes a controller which includes control logic for predicting an exhaust temperature of steam from the finishing superheater using model-based predictive techniques (e.g., based on empirical data or thermodynamic calculations). Based on the predicted exhaust temperature of steam, the control logic may use feed-forward control techniques to control the operation of an inter-stage attemperation system upstream of the finishing superheater. The control logic may determine if attemperation is required based on whether the predicted exhaust temperature of steam from the finishing superheater exceeds a set point temperature as well as whether the inlet temperature of steam into the finishing superheater drops below a set point temperature of steam. The attemperation system may include a characterizing function to linearize the valve operation controlled by the control logic to inject cooled, high-pressure feedwater into the steam upstream of the finishing superheater, which may, in turn, control the exhaust temperature of steam from the finishing superheater. The disclosed embodiments may also be applied to any systems where an outlet temperature of a fluid from a heat transfer device may be controlled. | 04-01-2010 |
| 20130074788 | ATOMIZING DESUPERHEATER SHUTOFF APPARATUS AND METHOD - The present invention is directed to a desuperheater spraying valve assembly. More particularly, the invention provides a new and improved valve assembly, whereby cooling liquid may be controllably injected into a gas or a liquid stream, typically steam, to selectively maintain the gas or liquid at a predetermined temperature level. In a possible embodiment of the present invention, a class V valve assembly is disclosed. It comprises an actuator coupled to a plug with a valve seat in the proximity of said plug. The plug is affixed to an actuator rod which transverses the body of the valve assembly. A spray tube may be affixed to said valve seat and at least one spray nozzle is affixed to a to the spray tube. The plug and said valve seat are conical in shape as to when said plug is inserted into said valve, they form a seal. | 03-28-2013 |
| 20150114320 | STEAM TEMPERATURE CONTROL USING MODEL-BASED TEMPERATURE BALANCING - A technique of controlling a steam generating boiler system having multiple superheater sections includes determining multiple control signals to control a temperature of output steam to a turbine. The technique uses a first control block to determine an offset value based on multiple input temperatures and a dynamic matrix control (DMC) block to determine input steam control signals based on an output temperature and an output temperature setpoint. The technique modifies one of the input steam control signals based on the offset value. The modified input steam control signal and the unmodified input steam control signal are provided to respective field devices to control the input temperatures and, as a result, the output temperature. | 04-30-2015 |
| 20150369473 | STEAM TEMPERATURE CONTROL DEVICE FOR A GAS AND STEAM TURBINE PLANT - A steam-temperature control device for a gas- and steam turbine plant, including a feed water line, a feed-water control valve located in the feed water line and a water injection line which branches off from the feed water line upstream of the feed-water control valve in the flow direction of said water and which opens into an injection cooler is provided. The steam-temperature control device is characterized in that a pre-heating device for the injection water is connected in the water injection line. A method for controlling the steam temperature in a gas- and steam turbine plant is also provided. | 12-24-2015 |
| 122479400 | With variable firing | 1 |
| 20140216364 | METHOD AND APPARATUS FOR REHEAT STEAM TEMPERATURE CONTROL OF OXY-FIRED BOILERS - Method and system for adjusting a measured reheat outlet steam temperature (“R | 08-07-2014 |
