A heat exchanger tube bundle of horizontal gas path design is presented, the tube bundle comprising a sequence of bottom headers and corresponding top headers, wherein each unit of the sequence comprises a row of tubes, wherein each bottom header-is fluidly connected to a corresponding top header-via at least two similar tube rows for passing a fluid in a first direction between the bottom header and the top header, respectively, and wherein each unit of the sequence further comprises at least one further tube row in fluid connection with one of said bottom or top header, wherein the further tube row is further fluidly connected to a header of a subsequent unit, and wherein the further row's tubes are configured for passing the fluid in a second direction opposite to the first direction. Moreover, a related heat recovery steam generator-and combined cycle power plant are presented.
F28F 9/02 - Boîtes de distributionPlaques d'extrémité
F22B 1/18 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant un gaz chaud, p. ex. des gaz d'évacuation tels que les gaz d'échappement de moteurs à combustion interne
2.
HEAT EXCHANGER TUBE BUNDLE AND RELATED HEAT RECOVERY STEAM GENERATOR
A heat exchanger tube bundle (10) of horizontal gas path design is presented, the tube bundle (10) comprising a sequence (1) of bottom headers (2b) and corresponding top headers (2a), wherein each unit (1, 1a) of the sequence comprises a row of tubes, wherein each bottom header (2b) is fluidly connected to a corresponding top header (2a) via at least two similar tube rows (3, 4, 5) for passing a fluid in a first direction between the bottom header (2b) and the top header (2a), respectively, and wherein each unit of the sequence further comprises at least one further tube row (3, 4, 5) in fluid connection with one of said bottom or top header, wherein the further tube row is further fluidly connected to a header of a subsequent unit (1, 1b), and wherein the fur- ther row's tubes (3, 4, 5) are configured for passing the fluid in a second direction opposite to the first direction. Moreover, a related heat recovery steam generator (40) and combined cycle power plant (100) are presented.
F22B 21/12 - Chaudières à tubes d'eau du type vertical ou semi-vertical, c.-à-d. où les faisceaux de tubes d'eau sont disposés verticalement ou pratiquement à la verticale composées de tubes d'eau pratiquement droits comportant plusieurs réservoirs supérieurs et plusieurs réservoirs inférieurs, p. ex. avec des faisceaux de tubes d'eau disposés en travers, reliant à leurs extrémités les réservoirs
F22B 21/20 - Chaudières à tubes d'eau du type vertical ou semi-vertical, c.-à-d. où les faisceaux de tubes d'eau sont disposés verticalement ou pratiquement à la verticale composées de tubes d'eau pratiquement droits comportant des collecteurs sectionnels ou subdivisés en disposition séparée pour chaque faisceau de tubes d'eau
F22B 1/18 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant un gaz chaud, p. ex. des gaz d'évacuation tels que les gaz d'échappement de moteurs à combustion interne
A heat recovery steam generator includes an exhaust-gas channel with an economizer heating surface and evaporator heating surface. The heating surfaces are connected to one another such that, on a feed water side, the economizer heating surface is upstream of the evaporator heating surface. A water/steam separator is arranged on the feed water side downstream of the evaporator heating surface. An excess pipe length system is outside the exhaust-gas channel and is designed in such a way that, after a complete filling of the economizer heating surface, feed water, in a riser of the excess pipe length system, reaches an overflow and thus passes into the evaporator heating surface via a down pipe. A vent line branches off the overflow of the excess pipe length system. A first filling line and a first valve are arranged between an economizer filling outlet and the evaporator outlet of the evaporator heating surface.
F22B 1/18 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant un gaz chaud, p. ex. des gaz d'évacuation tels que les gaz d'échappement de moteurs à combustion interne
F22D 1/00 - Appareils de chauffage d'eau d'alimentation, p. ex. préchauffeurs
4.
Exhaust duct for a fossil fuel powered engine comprising a dilution selective catalytic reduction system
An exhaust duct for a fossil fuel powered engine includes an exhaust gas passage, a cooling fluid passage, a mixing device for mixing cooling fluid with the hot exhaust gas and a selective catalytic reduction catalyst for removing nitrogen oxides arranged in the exhaust gas passage. The mixing device has a mixing chamber with a first wall and an opposed second wall, the first and second wall arranged upstream of the selective catalytic reduction catalyst in the exhaust gas passage and extending over the cross-sectional area of the exhaust gas passage, both walls perforated by through holes, wherein through holes of the first wall are connected with through holes of the second wall in pairs by pipes extending through the mixing chamber, the pipes perforated by at least one hole into the mixing chamber and the cooling fluid passage ending into the mixing chamber.
F01D 25/30 - Têtes d'évacuation, chambres ou parties analogues
B01D 53/94 - Épuration chimique ou biologique des gaz résiduaires des gaz d'échappement des moteurs à combustion par des procédés catalytiques
F01N 3/20 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs par conversion thermique ou catalytique des composants nocifs des gaz d'échappement caractérisés par les méthodes d'opérationCommande spécialement adaptés à la conversion catalytique
F02C 7/141 - Refroidissement des ensembles fonctionnels des fluides dans l'ensemble fonctionnel du fluide de travail
F02C 7/18 - Refroidissement des ensembles fonctionnels caractérisé par l'agent refroidisseur l'agent refroidisseur étant gazeux, p. ex. l'air
B01F 23/70 - Prétraitement des matières à mélanger
B01F 23/213 - Mélange de gaz avec des liquides par l’ajout de liquides dans les milieux gazeux par pulvérisation ou atomisation des liquides
B01F 25/313 - Mélangeurs à injecteurs dans des conduits ou des tubes dans lesquels circule le composant principal dans lesquels des composants supplémentaires sont introduits au centre du conduit
B01F 25/314 - Mélangeurs à injecteurs dans des conduits ou des tubes dans lesquels circule le composant principal dans lesquels des composants supplémentaires sont introduits à la circonférence du conduit
An evaporator system for an industrial boiler, containing a heat transfer system, a separator for separating water and steam and a dryer for drying the separated wet steam. A horizontal vessel contains a required minimum amount of water, a relatively small steam volume and internals for the separation of water and wet-steam. A vertical vessel contains internals for drying the wet steam to predetermined values by separating liquid from the wet-steam. The horizontal vessel and the vertical vessel are connected to each other by wet-steam piping through which separated wet-steam is transported from the horizontal vessel to the vertical vessel. The vertical vessel has a connection to dry-steam piping for discharging dried steam. The vertical vessel has a connection to a liquid drain piping for transporting liquid from the vertical vessel back to the inlet conduits of the evaporator heat transfer section.
F22D 1/00 - Appareils de chauffage d'eau d'alimentation, p. ex. préchauffeurs
F22B 1/18 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant un gaz chaud, p. ex. des gaz d'évacuation tels que les gaz d'échappement de moteurs à combustion interne
F22B 21/00 - Chaudières à tubes d'eau du type vertical ou semi-vertical, c.-à-d. où les faisceaux de tubes d'eau sont disposés verticalement ou pratiquement à la verticale
F22D 11/00 - Alimentation en eau non prévue dans les autres groupes principaux
A combined cycle power plant having a Rankine cycle with a turbine, an exhaust gas heat exchanger, a pump, a condenser and a first generator driven by the turbine, a multi shaft gas turbine cycle with at least two compressor stages, a combustor, at least one turbine stage and a second generator driven by the at least one turbine stage. In a compressing air path between two compressor stages, an intercooler is arranged such that a temperature of the compressed air for the combustor is decreased. The cold side path from the intercooler is connected in parallel to the exhaust gas exchanger of the Rankine cycle, such that the waste heat from the intercooler is feeding the Rankine cycle in addition to the exhaust gas heat from the exhaust gas heat exchanger.
F01K 23/10 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle le fluide à la sortie de l'un des cycles chauffant le fluide dans un autre cycle
F01K 7/32 - Ensembles fonctionnels de machines à vapeur caractérisés par l'emploi de types particuliers de machines motricesEnsembles fonctionnels ou machines motrices caractérisés par un circuit de vapeur, un cycle de fonctionnement ou des phases particuliersDispositifs de commande spécialement adaptés à ces systèmes, cycles ou phasesUtilisation de la vapeur soutirée ou de la vapeur d'évacuation pour le réchauffage de l'eau d'alimentation les machines motrices utilisant la vapeur à la pression critique ou hypercritique
7.
Modular heat recovery steam generator construction
c) in a horizontal position without lifting the module (10). The module (10) with the attached structural steel (13) is lifted to a vertical position and secured to a foundation (60). Also described is a method for pre-assembling the module (10) and a method for transporting the pre-assembled module (10) to the installation site.
The present invention relates to a mixture of inorganic nitrate salts comprising sodium nitrate and potassium nitrate in certain proportions which can be used both for the storage of thermal energy and as heat transfer fluid, for example within concentrated solar power (CSP) plants. Preferably the present invention may be used in thermodynamic solar systems with point-focusing, receiver-type power towers using helio-stat mirror geometries on-ground. The present invention may furthermore be used as heat transfer fluid in a number of applications for industrial processes involving heat exchanges in a wide range of temperatures. In accordance with the invention there is provided an anhydrous, binary salt mixture, comprising potassium nitrate KNO3 and sodium nitrate NaNO3 wherein the KNO3 content ranges from 60% by weight to 75% by weight, preferably from 63% by weight to 70% by weight and more preferably from 65% by weight to 68% by weight.
The present invention relates to a method for treating an outer surface (2) of a heat transfer fluid tube (1) especially for a receiver of a solar thermal power plant, comprising the steps: of providing the heat transfer fluid tube (1) and treating the outer surface (2) with a hydrogen plasma jet (3) so that a porosity in the range of a nano-scale is created in a thin layer of that outer surface (2).
C23F 4/00 - Procédés pour enlever des matériaux métalliques des surfaces, non couverts par le groupe ou
F24J 2/07 - Récepteurs à haute température, p.ex. pour centrales solaires
F24J 2/48 - caractérisés par le matériau absorbant
F28F 13/18 - Dispositions pour modifier le transfert de chaleur, p. ex. accroissement, diminution par application de revêtements, p. ex. absorbant les radiations ou les réfléchissantDispositions pour modifier le transfert de chaleur, p. ex. accroissement, diminution par application d'un traitement de surface, p. ex. un polissage
10.
HEAT EXCHANGE SYSTEM AND METHOD FOR STARTING-UP SUCH A HEAT EXCHANGE SYSTEM
The present invention relates to a heat exchange system for producing superheated working fluid for a steam turbine from expected supercritical hydrothermal fluid from a geothermal reservoir, comprising a header-type heater with a shell (10), where an inlet is conducted to a feed pipe (20) for transporting the expected supercritical hydrothermal fluid from the geothermal reservoir into the shell (10) and where an outlet is conducted to a drain pipe (30) for transporting the condensed hydrothermal fluid from the shell (10) to a disposal, working fluid pipes (70,80) circulating feed water from a condenser of the steam turbine into a heat exchange bundle system within the shell (10) and retrieving superheated steam from the heat exchange bundle system for the steam turbine, a spraying device (40) is arranged within the shell (10) for spraying a first (11) bundle of the heat exchange bundle system, and a mixing device (60) is arranged between an output of the first bundle (11) and an input of a working fluid down streamed second bundle (12) for mixing working fluid from the output of the second bundle (12) with working fluid from the output of the first bundle (11).
F22B 1/08 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant de la vapeur
F22B 35/14 - Systèmes de commande pour chaudières à vapeur pour chaudières à vapeur du type à circulation forcée pendant la période de démarrage, c.-à-d. pendant la période située entre l'allumage du foyer et l'obtention de la température normale de fonctionnement de la chaudière à vapeur
F28D 3/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique s'écoule sous forme de pellicule continue ou ruisselle librement sur les canalisations
F24J 3/08 - géothermique (dispositifs produisant une puissance mécanique à partir d'énergie géothermique F03G 4/00)
F28B 1/00 - Condenseurs dans lesquels la vapeur d'eau ou autre vapeur est séparée de l'agent de refroidissement par des parois, p. ex. condenseur à surface
An arrangement for influencing the flow of an exhaust gas of a gas turbine in a channel that preferably leads to a waste-heat exchanger or boiler. A flow grating is disposed transversely in the channel at an end of the channel that faces the gas turbine. The flow grating partially obstructs the cross-sectional area of the channel, and is provided with passages.
F22B 37/24 - Dispositifs de support, de suspension ou de montage, p. ex. faisant écran à la chaleur
F22B 1/18 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant un gaz chaud, p. ex. des gaz d'évacuation tels que les gaz d'échappement de moteurs à combustion interne
F01D 25/30 - Têtes d'évacuation, chambres ou parties analogues
F28F 9/02 - Boîtes de distributionPlaques d'extrémité
A steam generator includes a substantially horizontal gas conduit (1) to guide a heating gas flow (2) and an evaporator unit positioned at least partially in the horizontal gas conduit for transferring heat from the heating gas to a flow medium which flows through the evaporator unit. The heat transfer section of the evaporator unit of the steam generator is bottom fed, which means that the inlet conduit is arranged at a lower region of the heat transfer section. The outlet conduit is arranged at an upper region. The inlet conduit allows an once through operation of the evaporator section which is necessary to enable operation under supercritical circumstances. The evaporator unit includes at least two evaporator stages (3, 4) which are arranged in a cascade. Each evaporator stage includes a heat transfer section (12, 21) and a separator (14, 23). The presence of the separators (14, 23) subdivides the evaporator unit into evaporator stages (3, 4).
F22B 29/06 - Chaudières à vapeur du type à circulation forcée du type à circulation ouverte, c.-à-d. composées de tubes admettant de l'eau à une extrémité et dégageant de la vapeur surchauffée à l'autre extrémité
F22B 1/18 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant un gaz chaud, p. ex. des gaz d'évacuation tels que les gaz d'échappement de moteurs à combustion interne
13.
Steam water separator, use of such water steam separator, and method for separating steam and water
A steam water separator includes: —a vessel having a vessel wall delimiting an interior of the vessel, where the vessel is configured to contain steam in a steam zone and water in a water zone in the interior of the vessel, —at least one inlet for introducing steam and/or water in the vessel, —at least one steam outlet for taking steam out of the vessel, —at least one water outlet for taking water out of the vessel, and a wetting device configured to wet in the steam zone an inner surface of the vessel wall.
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Apparatus for lighting, heating, steam generating, cooking,
refrigerating, drying, ventilating, water supply and
sanitary purposes; generators of water, ovens (other than
ovens for experiments); industrial hot-water tanks; steam
generators (other than machine parts); burners; thermal
power plants. Construction; repair; installation and maintenance services. Preparation of plans and advice in connection with
construction; engineering services; surveying services
provided by engineers; technical advice provided by
engineers; design of new products including with a view to
thermal power plants, industrial hot-water tanks and
burners.
The hybrid solar power plant comprises a first circuit including a first flow medium and a second circuit including a second flow medium. The first circuit includes at least one solar collector to transfer collected solar heat to the first flow medium. The first circuit comprises at least one first fluid/second fluid heat exchanger to exchange heat from the first flow medium in the first circuit to the second flow medium in the second circuit. The second circuit is preferably a water/steam circuit. The second circuit comprises at least one steam turbine for generating electricity out of steam. The first circuit further comprises a heat source for generating a flow of heating gas. The heat source serves as the auxiliary energy. A gas/first fluid heat exchanger is provided for transferring heat from the flow of heating gas to the first flow medium in the first circuit.
F03G 6/06 - Dispositifs produisant une puissance mécanique à partir d'énergie solaire avec des moyens de concentration de l'énergie solaire
F01K 21/04 - Ensembles fonctionnels de machines motrices à vapeur non prévus ailleurs utilisant un mélange de vapeur et de gazEnsembles fonctionnels produisant ou surchauffant de la vapeur en mettant en contact direct l'eau ou la vapeur avec des gaz chauds
F02C 1/05 - Ensembles fonctionnels de turbines à gaz caractérisés par l'utilisation de gaz chauds ou de gaz sous pression non chauffés, comme fluide de travail le fluide de travail étant chauffé indirectement caractérisés par le type ou la source de chaleur, p. ex. utilisant l'énergie nucléaire ou solaire
A steam generator comprises a substantially horizontal gas conduit (1) to guide a heating gas flow (2) and an evaporator unit positioned at least partially in the horizontal gas conduit for transferring heat from the heating gas to a flow medium which flows through the evaporator unit. The heat transfer section of the evaporator unit of the steam generator is bottom fed, which means that the inlet conduit is arranged at a lower region of the heat transfer section. The outlet conduit is arranged at an upper region. The inlet conduit allows an once through operation of the evaporator section which is necessary to enable operation under supercritical circumstances. The evaporator unit according to the invention comprises at least two evaporator stages (3, 4) which are arranged in a cascade. Each evaporator stage comprises a heat transfer section (12, 21) and a separator (14, 23). The presence of the separators (14, 23) subdivides the evaporator unit into evaporator stages (3, 4).
F22B 1/18 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant un gaz chaud, p. ex. des gaz d'évacuation tels que les gaz d'échappement de moteurs à combustion interne
F22B 29/06 - Chaudières à vapeur du type à circulation forcée du type à circulation ouverte, c.-à-d. composées de tubes admettant de l'eau à une extrémité et dégageant de la vapeur surchauffée à l'autre extrémité
An evaporator system for an industrial boiler is provided and includes a heat-transfer system for generating a water-steam mixture. At least one horizontal vessel is provided for the primary separation of water and steam. At least one vertical vessel is provided and contains a water level great enough to create the necessary pressure to force the separated water to flow back from the vertical vessel to the evaporator system. The horizontal vessel and the vertical vessel are connected to one another by a piping through which the separated wet steam is transported from the horizontal vessel to the vertical vessel. The horizontal vessel has a connection to a piping for receiving water. The vertical vessel has a connection to piping for extracting dried steam from the vertical vessel.
