A dual fuel burner system includes a fuel burner housing and a main fuel supply conduit within the fuel burner housing. A main fuel nozzle is positioned proximate to a downstream end of the fuel burner housing and is in fluid communication with the main fuel supply conduit. The main fuel supply conduit is configured to provide 100% of the heat input requirement of the dual fuel burner system. A secondary fuel supply conduit is within the fuel burner housing. The secondary fuel supply conduit is configured to provide 100% of the heat input requirement of the dual fuel burner system. An air circuit is in fluid communication with an outlet of the main fuel nozzle. A direct spark ignitor is positioned proximate to the outlet of the main fuel nozzle.
F23Q 9/10 - Allumage par flamme pilote dépendants de l'alimentation principale en combustible réglant l'alimentation successive en combustible des brûleurs pilotes et des brûleurs principaux
F23D 17/00 - Brûleurs pour la combustion simultanée ou alternative de combustibles gazeux, liquides ou pulvérulents
F23C 7/00 - Appareils à combustion caractérisés par des dispositions pour l'amenée d'air
F23C 1/02 - Appareils à combustion spécialement adaptés à la combustion de plusieurs sortes de combustibles simultanément ou alternativement, au moins un des combustibles étant fluide ou étant un combustible solide en suspension dans l’air du combustible en morceaux et du combustible liquide
A dual fuel burner system includes a fuel burner housing and a main fuel supply conduit within the fuel burner housing. A main fuel nozzle is positioned proximate to a downstream end of the fuel burner housing and is in fluid communication with the main fuel supply conduit. The main fuel supply conduit is configured to provide 100% of the heat input requirement of the dual fuel burner system. A secondary fuel supply conduit is within the fuel burner housing. The secondary fuel supply conduit is configured to provide 100% of the heat input requirement of the dual fuel burner system. An air circuit is in fluid communication with an outlet of the main fuel nozzle. A direct spark ignitor is positioned proximate to the outlet of the main fuel nozzle.
F23D 17/00 - Brûleurs pour la combustion simultanée ou alternative de combustibles gazeux, liquides ou pulvérulents
F23C 1/00 - Appareils à combustion spécialement adaptés à la combustion de plusieurs sortes de combustibles simultanément ou alternativement, au moins un des combustibles étant fluide ou étant un combustible solide en suspension dans l’air
F23C 1/10 - Appareils à combustion spécialement adaptés à la combustion de plusieurs sortes de combustibles simultanément ou alternativement, au moins un des combustibles étant fluide ou étant un combustible solide en suspension dans l’air du combustible liquide et du combustible pulvérulent
F23C 1/12 - Appareils à combustion spécialement adaptés à la combustion de plusieurs sortes de combustibles simultanément ou alternativement, au moins un des combustibles étant fluide ou étant un combustible solide en suspension dans l’air du combustible gazeux et du combustible pulvérulent
A wall-fired burner includes a fuel tip defining a fuel direction axis and a fuel tip pivot axis perpendicular thereto. A first air tip is adjacent to the fuel tip. The first air tip defines a first air direction axis and a first air tip pivot axis perpendicular thereto. A second air tip is adjacent to the fuel tip, opposite from the first air tip across the fuel tip. The second air tip defines a second air direction axis and a second air tip pivot axis perpendicular thereto. A mechanism operatively connects the fuel tip, the first air tip and the second air tip for at least one of independent and/or joint movement of the fuel tip, the first air tip and the second air tip.
A heat exchange system includes a shell having an interior with an inlet and an outlet wherein a first fluid circuit is defined from the inlet, through a heat exchange volume within the interior of the shell, to the outlet. A tubesheet is mounted within the shell dividing between the heat exchange volume and a plenum of a second fluid circuit within the interior of the shell. A set of tubes extends through the heat exchange volume, a respective interior passage of each tube being in fluid communication with the plenum through a respective opening though the tubesheet. The second fluid circuit includes the plenum and interior passages of the tubes. A spray nozzle is mounted in the plenum of the second fluid circuit with a spray outlet directed toward the tubesheet for cleaning the tubesheet with a submerged impingement jet issued from the spray nozzle.
F28G 1/16 - Accessoires non rotatifs, p. ex. alternatifs utilisant des jets de fluide pour enlever les débris
F28G 15/00 - NETTOYAGE DES SURFACES INTERNES OU EXTERNES DES CONDUITS DES ÉCHANGEURS DE CHALEUR OU DE TRANSFERT DE CHALEUR, p. ex. TUBES D'EAU DE CHAUDIÈRES Parties constitutives
F28G 15/02 - Supports pour accessoires de nettoyage, p. ex. les châssis
B08B 3/02 - Nettoyage par la force de jets ou de pulvérisations
A solid fuel nozzle tip for issuing a flow of mixed solid fuel and air to a boiler includes a tip body having an inlet and an outlet defining a longitudinal axis therebetween. The tip body includes a slot on an inlet side of the tip body extending in a direction parallel to the longitudinal axis. The slot includes an opening facing the inlet side of the tip body and a recess formed at an angle with respect to the longitudinal axis to at least partially retain a pivot pin. A solid fuel nozzle assembly for issuing a flow of mixed solid fuel and air to a boiler includes a solid fuel nozzle tip with a tip body, as described above, and a locking plate operatively connected to the tip body to assist in retaining a pivot pin within the slot of the tip body.
A solid particle distribution controller includes a plurality of division plates proximate a division between an upstream solid particle conveyance pipe and a plurality of downstream pipes. The solid particle distribution controller also includes a plurality of extension plates. Each of the extension plates is movably mounted proximate to a respective division plate for movement in an upstream and downstream direction with respect to the division plate. The plurality of extension plates are configured and adapted for motion in the upstream and downstream direction independent of one another to extend upstream of the division plates as needed to improve solid particle distribution among the downstream pipes.
A solid particle distribution controller includes a plurality of division plates proximate a division between an upstream solid particle conveyance pipe and a plurality of downstream pipes. The solid particle distribution controller also includes a plurality of extension plates. Each of the extension plates is movably mounted proximate to a respective division plate for movement in an upstream and downstream direction with respect to the division plate. The plurality of extension plates are configured and adapted for motion in the upstream and downstream direction independent of one another to extend upstream of the division plates as needed to improve solid particle distribution among the downstream pipes.
A modular panel for a solar boiler includes an inlet header, an outlet header, and a plurality of tubes fluidly connecting the inlet header to the outlet header. The tubes are substantially coplanar with one another forming a solar receiver surface and an opposed internal surface. The panel is modular in terms of height, width, number of tubes, and size of tubes, for improved handling of high heat flux and resultant thermally induced stresses.
A solid particle flow distribution controller includes an extension skirt configured to be mounted to a discharge skirt at a division between an upstream solid particle conveyance pipe and a plurality of downstream pipes. The extension skirt includes a plurality of circumferential segments. Each segment is movably mounted to the discharge skirt for movement in an upstream and downstream direction with respect to the discharge skirt. The segments of the extension skirt are configured and adapted for motion in the upstream and downstream direction independent of one another to extend upstream of the discharge skirt as needed to improve solid particle distribution among the downstream pipes.
A flow splitter for distributing solid particles flowing in a fluid through a piping system includes a divider housing. The divider housing has an inlet configured to connect to an upstream pipe and has a plurality of outlets, each outlet being configured to connect to a respective downstream pipe. A divider body is mounted within the divider housing. A plurality of divider vanes are included, each extending from the divider body to the divider housing. The divider housing, divider body, and divider vanes are configured and adapted to reduce non-uniformity in particle concentration from the inlet and to supply a substantially equal particle flow to each outlet.
A startup system for a solar boiler includes a main fluid circuit having a plurality of solar boiler panels for generating power from solar energy. An auxiliary fluid circuit is selectively connected in fluid communication with the main fluid circuit by a plurality of valves. An auxiliary boiler is operatively connected to the auxiliary fluid circuit. The valves connecting the auxiliary fluid circuit to the main fluid circuit are configured to be opened and closed to selectively place the auxiliary boiler in fluid communication with portions of the main fluid circuit to supply heat to the portions of the main fluid circuit in preparation to produce power from solar energy.
A solid fuel nozzle tip for issuing a flow of mixed solid fuel and air into a boiler or furnace includes an outer nozzle body having an outer flow channel extending therethrough from an inlet to an outlet of the outer nozzle body. An inner nozzle body has an inner flow channel extending therethrough from an inlet to an outlet of the inner nozzle body. The inner nozzle body is mounted within the outer nozzle body with the inner flow channel inboard of and substantially aligned with the outer flow channel. The inner and outer nozzle bodies are joined together so as to accommodate movement relative to one another due to thermal expansion and contraction of the outer and inner nozzle bodies.
A solid fuel nozzle tip for issuing a flow of mixed solid fuel and air into a boiler or furnace includes an outer nozzle body having an outer flow channel extending therethrough from an inlet to an outlet of the outer nozzle body. An inner nozzle body has an inner flow channel extending therethrough from an inlet to an outlet of the inner nozzle body. The inner nozzle body is mounted within the outer nozzle body with the inner flow channel inboard of and substantially aligned with the outer flow channel. The inner and outer nozzle bodies are joined together so as to accommodate movement relative to one another due to thermal expansion and contraction of the outer and inner nozzle bodies.
A solid fuel nozzle tip for issuing a flow of mixed solid fuel and air into a boiler or furnace includes an outer nozzle body having an outer flow channel extending therethrough from an inlet to an outlet of the outer nozzle body. An inner nozzle body has an inner flow channel extending therethrough from an inlet to an outlet of the inner nozzle body. The inner nozzle body is mounted within the outer nozzle body with the inner flow channel inboard of and substantially aligned with the outer flow channel. The inner and outer nozzle bodies are joined together so as to accommodate movement relative to one another due to thermal expansion and contraction of the outer and inner nozzle bodies.
A boiler for a solar receiver includes a plurality of boiler panels arranged side by side with each other so that the panels form a boiler wall section. Piping fluidly connects the plurality of boiler panels together to route a working fluid through the boiler wall section from an inlet of the boiler wall section to an outlet of the boiler wall section. The piping and boiler panels are configured and adapted to route the working fluid through each of the boiler panels in a common direction.
A boiler for a solar receiver includes a plurality of solar receiver panels. The panels are fluidly connected to one another by way of a steam circuit. At least one spray station is in fluid communication with the steam circuit and is configured and adapted to provide temperature cooling spray into the steam circuit to control the temperatures of the panels.
A boiler for a solar receiver includes a first boiler panel having a plurality of tubes fluidly connecting an inlet header of the first boiler panel to an outlet header of the first boiler panel. The tubes of the first boiler panel form a first solar receiver surface. A second boiler panel has a plurality of tubes fluidly connecting an inlet header of the second boiler panel to an outlet header of the second boiler panel. The tubes of the second boiler panel form a second solar receiver surface. The first and second boiler panels are adjacent to one another with a portion of the first boiler panel and an end of the first solar receiver surface overlapping an end of the second boiler panel to reduce solar radiation passing between the first and second solar receiver surfaces.
A boiler for a solar receiver includes a first wall of substantially coplanar side by side boiler panels. A plurality of contiguous panels of the first wall each have an inlet header thereof at a common first wall header elevation. A second wall includes substantially coplanar side by side boiler panels. A plurality of contiguous panels of the second wall each have an inlet header thereof at a common second wall header elevation. The second wall is adjacent to and angled with respect to the first wall so that one end panel of the first wall is adjacent to one end panel of the second wall to form a boiler wall comer. The inlet headers of the two end panels of the boiler wall corner are at different elevations relative to one another.
F24J 2/04 - Collecteurs de chaleur solaire avec fluide vecteur circulant à travers le collecteur
F24J 2/46 - Parties constitutives, détails ou accessoires de collecteurs de chaleur solaire
F24J 2/24 - le fluide vecteur circulant à travers des conduites tubulaires absorbant la chaleur
F24H 1/10 - Chauffe-eau instantanés, c.-à-d. dans lesquels il n'y a production de chaleur que lorsque l'eau s'écoule, p. ex. avec contact direct de l'eau avec l'agent chauffant
A boiler for a solar receiver includes a first receiver panel having a plurality of substantially parallel boiler tubes fluidly connecting an inlet header of the panel to an outlet header of the panel. A second receiver panel has a plurality of substantially parallel boiler tubes fluidly connecting an inlet header of the panel to an outlet header of the panel. The boiler tubes of the second receiver panel are substantially parallel to the boiler tubes of the first receiver panel. The first and second receiver panels are separated by a gap. A panel expansion joint is connected to the first and second receiver panels across the gap, wherein the panel expansion joint is configured and adapted to allow for lengthwise thermal expansion and contraction of the receiver panels along the boiler tubes, and to allow for lateral thermal expansion and contraction of the receiver panels toward and away from one another, while blocking solar radiation through the gap.
A boiler for a solar receiver includes a panel support structure. A boiler stay is operatively connected to the panel support structure. A panel stay is slideably engaged to the boiler stay. A boiler panel is operatively connected to the panel stay with the panel stay being affixed to a plurality of tubes of the panel. The boiler stay and panel support assemblies are configured and adapted to slide with respect to one another to accommodate thermal expansion of the boiler panel. In certain embodiments, a pin connects the boiler stay and the panel stay, wherein the pin is removable for installation and removal of the panel from the support structure.
A boiler for a solar receiver includes a panel support structure. A boiler stay is operatively connected to the panel support structure. A panel stay is slideably engaged to the boiler stay. A boiler panel is operatively connected to the panel stay with the panel stay being affixed to a plurality of tubes of the panel. The boiler stay and panel support assemblies are configured and adapted to slide with respect to one another to accommodate thermal expansion of the boiler panel. In certain embodiments, a pin connects the boiler stay and the panel stay, wherein the pin is removable for installation and removal of the panel from the support structure.
A boiler for a solar receiver includes a plurality of boiler panels arranged side by side with each other so that the panels form a boiler wall section. Piping fluidly connects the plurality of boiler panels together to route a working fluid through the boiler wall section from an inlet of the boiler wall section to an outlet of the boiler wall section. The piping and boiler panels are configured and adapted to route the working fluid through each of the boiler panels in a common direction.
A boiler for a solar receiver includes a first boiler panel having a plurality of tubes fluidly connecting an inlet header of the first boiler panel to an outlet header of the first boiler panel. The tubes of the first boiler panel form a first solar receiver surface. A second boiler panel has a plurality of tubes fluidly connecting an inlet header of the second boiler panel to an outlet header of the second boiler panel. The tubes of the second boiler panel form a second solar receiver surface. The first and second boiler panels are adjacent to one another with a portion of the first boiler panel and an end of the first solar receiver surface overlapping an end of the second boiler panel to reduce solar radiation passing between the first and second solar receiver surfaces.
A boiler for a solar receiver includes a first wall of substantially coplanar side by side boiler panels. A plurality of contiguous panels of the first wall each have an inlet header thereof at a common first wall header elevation. A second wall includes substantially coplanar side by side boiler panels. A plurality of contiguous panels of the second wall each have an inlet header thereof at a common second wall header elevation. The second wall is adjacent to and angled with respect to the first wall so that one end panel of the first wall is adjacent to one end panel of the second wall to form a boiler wall corner. The inlet headers of the two end panels of the boiler wall corner are at different elevations relative to one another.
A guide bushing for a tensioning rod in a vertical pulverizer includes a bushing body having a substantially cylindrical interior bushing surface configured and adapted to moveably engage a tensioning rod of a vertical pulverizer. The bushing body is divided circumferentially about the bushing surface into a plurality of sections joined together. The sections are configured and adapted to separate from one another for installation and removal of the bushing body about a tensioning rod of a vertical pulverizer.
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