| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 122459000 | STEAM TREATMENT | 11 |
| 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 | 2 |
| 122476000 | Superheater | 2 |
| 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 |
| 122000000 | Superheater | 6 |
| 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 | 2 |
| 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 |
| 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 |
| 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 | 1 |
| 20110005471 | MOISTURE SEPARATOR REHEATER - A moisture separator reheater ( | 01-13-2011 |
| 122487000 | Water-injected | 1 |
| 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 |
| 122479100 | Automatic heat regulation of superheater | 2 |
| 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 |
| 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 |
