| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 122235110 | WATER TUBE | 62 |
| 20090095236 | Steam Generator Pipe, Associated Production Method and Continuous Steam Generator - Disclosed is a steam generator pipe which can be produced in a simple and economical manner and which has a particularly good heat transitional behavior having a large band width with various operational conditions. According to the invention, at least one insert is arranged in the inner chamber of the pipe in order to form a swirl-generating inner profile. The insert comprises a plurality of wires which wind, in a screw-like manner, along the inner wall of the pipe in the form of a multi-path thread. | 04-16-2009 |
| 20120031350 | ICE BLAST CLEANING SYSTEMS AND METHODS - The present application provides an ice blast cleaning method for a layer of slag on a surface. The ice blast cleaning method may include the steps of maintaining the surface with the layer of slag thereon at an elevated temperature, shooting a number of ice pellets at the layer of slag on the surface, and loosening the layer of slag on the surface via a mechanical impact of the ice pellets on the layer of slag and a thermal shock caused by a temperature differential between the ice pellets and the layer of slag. | 02-09-2012 |
| 20130019817 | Forced Circulation Steam Generator - An oil recovery process entails recovering an oil-water mixture from an oil bearing formation and separating the oil-water mixture to produce an oil product and produced water. The produced water includes suspended and dissolved solids and is subjected to treatment which removes suspended and dissolved solids therefrom. The treated water is then directed to a forced circulation steam generator that includes a furnace having a burner, water cooled walls and an evaporator unit. The treated water is pumped through the water cooled walls and the evaporator unit. The water passing through the water cooled walls and evaporator unit are heated to produce approximately 10% to approximately 30% quality steam in both the water cooled walls and the evaporator unit. The steam is collected and separated from a water-steam mixture to produce high quality steam, on the order of 95% or greater quality steam. This steam constitutes injection steam which is injected into an injection well to facilitate the recovery of the oil-water mixture. | 01-24-2013 |
| 20150136044 | INTERNALLY STIFFENED EXTENDED SERVICE HEAT RECOVERY STEAM GENERATOR APPARATUS - A heat recovery steam generator (“HRSG”) includes a first casing having an interior enclosing at least one duct for gas to flow therein along a gas flow axis. Each duct is defined by duct defining members that are spaced apart from each other and extend into the interior of the first casing. A plurality of stiffening members are elongated along the gas flow axis. Each of the stiffening members are positioned between two of the duct defining members. The stiffening members and duct defining members have a substantially similar coefficient of thermal expansion. | 05-21-2015 |
| 122235120 | Wall structure | 12 |
| 20100064988 | STEAM GENERATOR FOR SODIUM COOLED FAST REACTOR, HEAT TRANSFER TUBES THEREOF, AND LEAK DETECTION UNIT FOR HEAT TRANSFER TUBE THEREOF - A steam generator, used in a helical coil type steam generator for a sodium-cooled fast reactor which has heat transfer tubes of a double-wall tube structure, with high heat transfer efficiency and a heat transfer tube damage detection unit that can detect on-line in real-time whether the heat transfer tube is damaged or not. The heat transfer tube of a steam generator for a sodium-cooled fast reactor, includes an inner tube formed with a first material; an outer tube formed with a second material that is in close contact with the inner tube and which has a thermal expansion coefficient less than that of the first material; and a plurality of helium flow grooves formed between the inner tube and the outer tube along a lengthwise direction of the heat transfer tube for flowing helium gas. The inner tube and the outer tube are identically due to heat for the temperature difference generated during normal operation of the steam generator, so the degree of close contact between the inner tube and the outer tube does not decrease, and the decrease of heat transfer efficiency can be prevented. | 03-18-2010 |
| 20100300379 | BOILER WATERWALL PANEL - It is an object to reduce the burden of a welding operation in producing a boiler waterwall panel and to reduce the burden of maintaining a furnace housing using the boiler waterwall panels thereby to improve the operating rate of the boiler. In a boiler waterwall panel | 12-02-2010 |
| 20110120393 | MUNICIPAL SOLID WASTE FUEL STEAM GENERATOR WITH WATERWALL FURNACE PLATENS - A steam generator includes a furnace configured and adapted to generate a stream of furnace exit gases from the combustion of municipal solid waste fuel. At least one superheater is disposed within an upper portion of the furnace or backpass. The superheater is configured and adapted to superheat fluids within the superheater by facilitating heat transfer between fluids within the superheater and furnace exit gases outside the superheater. At least one waterwall furnace platen is disposed within the furnace upstream from the superheater, the waterwall furnace platen is configured and adapted to lower furnace exit gas temperature at the superheater by facilitating heat transfer between fluids within the waterwall furnace platen and furnace exit gases outside the waterwall furnace platen. | 05-26-2011 |
| 20110132281 | BOILER STRUCTURE - Provided is a boiler structure with which, by reducing the pressure drop in boiler evaporation tubes correspondingly to the heat flux, which varies in accordance with the distance in the boiler height direction, it is possible to reduce auxiliary power for a water feed pump and so forth, in addition to improving the flow stability and the natural circulation characteristics. The boiler structure includes a number of boiler evaporation tubes that are arranged on a wall surface of a furnace and that form a furnace wall, water pumped into the boiler evaporation tubes being heated in the furnace during flowing inside the tubes to produce steam, wherein the boiler evaporation tubes are formed by connecting tubes of a plurality of types, in which tube wall thicknesses are adjusted on the basis of furnace heat flux such that the higher the furnace heat flux in a region is, the smaller the tube inner diameter becomes. | 06-09-2011 |
| 20130199461 | TUBULAR WALL ASSEMBLY AND GASIFICATION REACTOR - Tubular wall assembly ( | 08-08-2013 |
| 20130263796 | HIGH-TEMPERATURE PIPING PRODUCT AND METHOD FOR PRODUCING SAME - A high-temperature piping product is configured from a plurality of primary pipe members and a welding material. The primary pipe members are each made from an Ni-based forged alloy containing: Ni, Al, and at least one of Mo and W. The total content of the Mo and the W being 3-8 mass %. The Ni-based forged alloy exhibiting a γ′-phase dissolution temperature of from 920 to 970° C., and the γ′ phase being precipitated in 30 volume % or more in a temperature range of from 700 to 800° C. The welding material is made from an Ni-based cast alloy having a cast structure formed by welding. The Ni-based cast alloy containing: Ni, Al, and at least one of Mo and W, the total content of the Mo and the W being 9-15 mass %, the Ni-based cast alloy exhibiting a γ′-phase dissolution temperature of from 850 to 900° C. | 10-10-2013 |
| 20130276723 | Method and Apparatus for Improved Firing of Biomass and Other Solid Fuels for Steam Production and Gasification - A ground supported single drum power boiler is described combining a refractory lined and insulated V-Cell floor; refractory lined and insulated combustion chamber; integrated fuel chutes configured to pre-dry wet solid fuel; top mounted fuel bin; internal chamber walls; configurable combustion air systems; and a back pass with after-burner ports and cross flow superheaters. The boiler can be configured in pre-assembled modules to minimize the field construction time and cost. An alternative embodiment is adaptable as a gasifier. | 10-24-2013 |
| 20130306002 | PREVENTING TUBE FAILURE IN BOILERS - The erosion-prone sections of the tubes in a circulating fluidized bed boiler are provided with a locally thickened sidewall without forming discontinuities on the outer surface of the tubes. This can be accomplished, for example, by replacing the erosion prone portion of the tube with a section having a smaller inside diameter, but the same outside diameter, or by replacing the erosion prone portion of the tube with a section having a thicker sidewall, but the same inside diameter, and smoothing over the outside discontinuity with an alloy coating. A useful alloy coating is also disclosed which can be used for this and other applications. | 11-21-2013 |
| 20130327284 | STEAM GENERATOR - The invention relates to a steam generator (D | 12-12-2013 |
| 20140150734 | AUSTENITIC STAINLESS STEEL TUBE - There is provided an austenitic stainless steel tube containing, by mass percent, 14 to 28% of Cr and 6 to 30% of Ni, wherein the steel tube has a metal micro-structure, in which an average dislocation density, which is determined by XRD measurement using a Co tube, is 3.0×10 | 06-05-2014 |
| 20160102856 | HIGH-CHROMIUM HEAT-RESISTANT STEEL - The present invention provides a high-chromium heat-resistant steel. The steel contains in mass %, C: 0.08% to 0.13%; Si: 0.15% to 0.45%; Mn: 0.1% to 1.0%; Ni: 0.01% to 0.5%; Cr: 10.0% to 11.5%; Mo: 0.3% to 0.6%; V: 0.10% to 0.25%; Nb: 0.01% to 0.06%; N: 0.015% to 0.07%; B: ≦0.005%, and Al: ≦0.04%. The balance consists of Fe and inevitable impurity elements. The steel shows a martensitic microstructure. | 04-14-2016 |
| 20160109116 | METHOD AND APPARATUS FOR IMPROVED FIRING OF BIOMASS AND OTHER SOLID FUELS FOR STEAM PRODUCTION AND GASIFICATION - A ground supported single drum power boiler is described combining a refractory lined and insulated V-Cell floor; refractory lined and insulated combustion chamber; integrated fuel chutes configured to pre-dry wet solid fuel; top mounted fuel bin; internal chamber walls; configurable combustion air systems; and a back pass with after-burner ports and cross flow superheaters. The boiler can be configured in pre-assembled modules to minimize the field construction time and cost. An alternative embodiment is adaptable as a gasifier. | 04-21-2016 |
| 122235140 | Tube structure | 15 |
| 20090165734 | Instantaneous steam boiler - The present invention relates to an instantaneous steam boiler generating steam in a steam cleaner, a steam-vacuum cleaner, a steam iron, etc. The instantaneous steam boiler has a substantially short traveling path of water against the formation of fur by insertedly molding a separate flow tube while being in contact with a U-shaped heater. | 07-02-2009 |
| 20100071634 | FURNACE OF BOILER FOR POWER STATION - A furnace of a boiler for a power plant includes an outer water tube section adapted to receive water from the outside and heat the water into hot water (including steam); and an inner water tube section adapted to receive water from the outside and heat the water into hot water (including steam) while allowing the water to be moved upwardly. The outer water tube section is formed in a shape gradually increasing or substantially uniform in diameter from the bottom toward the middle portion M, and gradually decreasing, increasing and decreasing again in diameter from the middle portion M toward the top, and the inner water tube section is formed in a shape gradually decreasing and increasing in diameter from the bottom toward the middle portion M, and gradually decreasing, increasing and decreasing again in diameter from the middle portion M toward the top. | 03-25-2010 |
| 20100071635 | WATERTUBE AND METHOD OF MAKING AND ASSEMBLING SAME WITHIN A BOILER OR HEAT EXCHANGER - A one-piece tube for use as a watertube within a watertube boiler or heat exchanger has a free end section that is formed to have an integral, outward-extending circumferential ring, or flange, a spaced distance from an adjacent end face of the tube. A boiler is provided that has an elongate header and a plurality of separate watertubes each having an intermediate section and opposite end sections. An end section of each watertube is connected to the header. The intermediate section of each watertube has a substantially constant outer diameter along its full length and is closely spaced to adjacent watertubes within the combustion chamber. At least one of the end sections of each watertube has a transition that reduces the diameter of the watertube as it extends from the intermediate section to an outwardly-extending circumferential flange. This arrangement permits close spacing of the connection sites of the watertubes to the header and permits the connection sites to be provided in a linear array. | 03-25-2010 |
| 20100313828 | Watertube, Header and Watertube Assembly, Boiler having the Assembly, and Method of Assembling Same - A boiler is provided that has an elongate base header, an elongate dome header, and a plurality of separate watertubes each having an intermediate section and opposite end sections. An upper one of the end sections of each watertube is connected to the dome header and a lower one of the end sections of each watertube is connected to the base header such that the intermediate section extends through a combustion chamber of the boiler. The intermediate section of each watertube has a substantially constant outer diameter along its full length and is closely spaced to adjacent watertubes within the combustion chamber. At least one of the end sections of each watertube has a transition that reduces the diameter of the watertube as it extends from the intermediate section to an outwardly-extending circumferential flange. This arrangement permits close spacing of the connection sites of the watertubes to the header and permits the connection sites to be provided in a linear array. The structure of a watertube, an assembly of a watertube and header, and a method of assembling a boiler are also disclosed. | 12-16-2010 |
| 20110005470 | HEATING APPARATUS - A first flow passage (R | 01-13-2011 |
| 20110088636 | BOILER - The present invention relates to a various kinds of boilers including a steam boiler, a hot water boiler, a waste-heat boiler and an exhaust gas boiler. Projections are provided on a heat-transfer tube which connects an upper header and a lower header with each other such that a heat-transfer area pet unit length of the heat-transfer tube becomes smaller in an upstream region than that in a downstream region of combustion gas. It is preferable that installation pitches between adjacent upper and lower projections and/or projecting lengths of the projections from the heat-transfer tube are changed such that the heat-transfer area per unit length of the heat-transfer tube becomes smaller in the upstream region than those in the downstream region of the combustion gas. | 04-21-2011 |
| 20130087106 | METHOD FOR PRODUCING STEAM GENERATOR TUBES - A method for producing steam generator tubes is provided. The method is intended to allow a technically particularly simple production process and at the same time allow particularly high flexibility with regards to the materials that may be used to achieve a particularly high efficiency of a steam generator. For this purpose, an insert is fixed in slots of a former shaft, the former shaft with the insert is introduced into a steam generator tube, the fixing of the insert on the former shaft is released and the former shaft is removed again from the steam generator tube. | 04-11-2013 |
| 20130118420 | HEAT TRANSFER TUBE FOR STEAM GENERATOR AND METHOD FOR PRODUCING THE SAME - In a heat transfer tube for a steam generator, a surface roughness of an inner surface of the tube is measured along a longitudinal direction and an amount of dimensional variation in a length of 50 mm taken from a measured roughness chart is 4 μm or less and an amount of bend crookedness in a portion of a length of 1000 mm from a tube end is 1 mm or less. Hence, when the tube is produced, an inspection of the tube by an eddy current flaw detection can be conducted at a high S/N ratio and hence an inspection efficiency can be improved, and when the tube is assembled into a heat exchanger, the assembling operation can be easily performed. | 05-16-2013 |
| 20130118421 | METHOD FOR PROTECTING HEAT EXCHANGER PIPES IN STEAM BOILER SYSTEMS, MOULDED BODY, HEAT EXCHANGER PIPE AND STEAM BOILER SYSTEM - In order to protect heat exchanger pipes ( | 05-16-2013 |
| 20130180472 | DOUBLE-WALLED TUBE, METHOD OF MANUFACTURING DOUBLE-WALLED TUBE AND STEAM GENERATOR - A double-walled tube includes: a plurality of double-walled tube forming members, each having an inner tube and an outer tube, connected by welding at welding portions of axis direction end portions thereof; and each of the welding portions of the double-walled tube forming members including a groove having a length in an axis direction set to be equal to or greater than ½ of a width of a weld bead formed by the welding at the welding portion. | 07-18-2013 |
| 20130199462 | Steam Generator Heating Tube Repair Device and Repair Method - A steam generator heating tube repair sleeve has an encircling flange, conical region, and a straight region. The encircling flange merges into a conical region that tapers on the outside in the direction of the other sleeve end and which is adjoined to the straight region. A steam generator heating tube repair method is used to repair a steam generator heating tube that is installed in a steam generator having a defective tube end. The method includes conical milling out of the defective tube end, inserting a steam generator heating tube repair sleeve into the conically milled-out defective tube end, rolling in the steam generator heating tube repair sleeve, and welding the flange region. | 08-08-2013 |
| 20140150735 | BOILER HAVING A FLUIDIZED BED HEAT EXCHANGER - The invention relates to a fluidized bed heat exchanger. The heat exchanger includes a plurality of tubes forming a tube bundle. Each tube follows a vertical boustrophedon path. The tubes are supported by at least two vertical supporting devices placed on both sides of the tube bundle. Every vertical supporting device includes at least two vertical supports for fixing the tubes. | 06-05-2014 |
| 20140360442 | WATER SUPPLY TUBE FOR STEAM GENERATOR - The water supply tube for steam generator includes an insert tube portion inserted in a penetration hole of a shell member and a generator internal tube portion connected to the insert tube portion. The generator internal tube portion includes a tubular passage and an effluence tube allowing effluence of cooling water in the tubular passage to a space in a steam generator. The tubular passage includes a first tilted portion in which a side having a greater distance from the insert tube portion along a flow direction is located vertically higher than a side having a smaller distance from the insert tube portion and a second tilted portion which is located with a greater distance from the insert tube portion than the first tilted portion. | 12-11-2014 |
| 20150128881 | METHOD FOR MANUFACTURING BOILER WATER WALLS AND BOILER WITH LASER/ARC WELDED WATER WALLS - A method of fabricating boiler water walls that includes the steps of forming a subpanel formed of at least one fin and one tube by laser arc welding the at least one fin to the one tube and then laser arc welding a predetermined plurality of subpanels together in a two-dimensional plane by laser arc welding an additional joining element between respective subpanels to form the water wall. | 05-14-2015 |
| 20160178191 | FURNACE OF CIRCULATING FLUIDIZED BED BOILER HAVING VARIABLE CROSS-SECTION WATER-COOLED COLUMN | 06-23-2016 |
| 122235150 | Headers and connections | 4 |
| 20090241859 | CONTINUOUS STEAM GENERATOR WITH EQUALIZING CHAMBER - An evaporator | 10-01-2009 |
| 20100307429 | WELDING STRUCTURE OF TUBE STUBS AND TUBE HEADER - In order to provide a welding structure of a tube header and tube stubs which successfully improves the durability thereof against creep and fatigue damage of the tube stubs without interposing a component of a different material between the tube header and the tube stubs, i.e. requiring additional components, a welding structure of the present invention comprises: a tube header ( | 12-09-2010 |
| 20120111288 | STEAM GENERATOR - A steam generator comprising: water/steam tubes passing through the steam generator from the water inlet ( | 05-10-2012 |
| 20160178196 | BURNER AND BOILER EQUIPPED WITH BURNER | 06-23-2016 |
| 122235170 | Having baffles | 1 |
| 20150362174 | TRANSFER PIPE FOR FURNACE - Disclosed herein is a transfer pipe for a furnace. The transfer pipe for a furnace includes a body portion having an inlet and an outlet through which a fluid is transferred, a guide portion having polygonal sides extending in a spiral form in an inward longitudinal direction of the body portion, and a diameter change portion repeatedly changing an inner diameter of the body portion in the longitudinal direction thereof. | 12-17-2015 |
| 122235230 | Having specific tube patterns | 6 |
| 20090025659 | Boiler - Provided is a boiler including: a plurality of heat transfer tubes arranged to form a cylindrical shape between an upper header and a lower header to constitute a heat transfer tube row; and a plurality of longitudinal fins provided to close gaps between the heat transfer tubes without connecting the adjacent heat transfer tubes, the plurality of longitudinal fins being provided to a portion other than one of one end in a vertical direction of the heat transfer tube row and a part in a peripheral direction thereof. | 01-29-2009 |
| 20090120383 | Pipe assembly - The invention relates to a pipe assembly ( | 05-14-2009 |
| 20100132632 | LOW MAINTENANCE FLUID HEATER AND METHOD OF FIRING SAME - A fluid heater constructed of rectangular tubing through which fluid to be heated is circulated in a circuitous path. The floor and walls of a combustion chamber of the heater are constructed of the rectangular tubing. A tubular coil stack is positioned over the combustion chamber and surrounded by coil stack chamber walls constructed of the rectangular tubing. Consequently, all surfaces of the fluid heater exposed directly to flame are constantly cooled by the fluid to be heated. A combustion unit of the fluid heater is removable to facilitate maintenance. | 06-03-2010 |
| 20120017849 | COMBUSTION APPARATUS WITH IMPROVED THERMAL EFFICIENCY - A combustion apparatus includes a cylindrical combustion chamber surrounded by an inner wall. A cooling chamber comprises an intermediate wall spaced from the inner wall. Cooling water flows in and out lower and upper sides of the intermediate wall, to cool the inner wall by the cooling water that flows into a space formed between the inner and intermediate walls of the cooling chamber. A lateral combustion air supply chamber comprises an outer wall spaced from an outer side of the intermediate wall. Combustion air is supplied at an upper side of the outer wall to thereby make the air in a tangential direction with respect to the cylindrical outer wall turn and fall in a space formed between the intermediate wall and the outer wall, so that the combustion air is supplied to the combustion chamber via an opened lower portion of the lateral combustion air supply chamber. | 01-26-2012 |
| 20120204815 | STEAM BOILER - A steam boiler, comprising a boiler body accommodating water and steam therein and a burner throwing flames toward a central through-hole of the boiler body and water pipes formed to cross the inside of the central through-hole of the boiler body, and directly heated by the flames of the burner and an internal cylinder formed to cover the outside of the boiler body so as to form a space between the internal cylinder and the outer wall surface of the boiler body where burned discharge gas flows from the lower side to the upper side and an external cylinder formed to cover the outside of the internal cylinder so as to form a space between the external cylinder and the outer wall surface of the internal cylinder where air for combustion flow such that heat exchange between the air for combustion and the discharge gas is performed. | 08-16-2012 |
| 20130306003 | BENT-OUT WALL IN THE REGION OF A SUBSTANTIALLY RECTANGULAR BURNER OPENING - Bent-out wall in the region of a substantially rectangular burner opening ( | 11-21-2013 |
| 122235260 | Having slag and ash disposal | 2 |
| 20110197829 | UPSIDE-DOWN TYPE LOW NOX BOILER - In a low NOx boiler of the present invention, a high-temperature reductive combustion zone is provided to an upper portion of a rectangular combustion chamber, and a second-step combustion zone is provided to a middle stage of the combustion chamber. A wall provided below the second-step combustion zone is tapered to narrow the combustion chamber, with a taper angle of approximately 35° or so, relative to a vertical line. An ash discharge port is provided to a furnace bottom portion, and a gas outlet port communicated with a rear pass water wall is provided to a lower side face of the second-step combustion zone. This rear pass water wall is connected with a further post-treatment step, via a super-heater tube and an economizer. | 08-18-2011 |
| 20110203534 | METHOD AND DEVICE FOR CONVEYING COMBUSTION RESIDUES - The present invention relates to a method for conveying combustion residues ( | 08-25-2011 |
| 122235290 | Having forced circulation system | 1 |
| 20160178188 | CONTINUOUS FLOW STEAM GENERATOR WITH A TWO-PASS BOILER DESIGN | 06-23-2016 |
| 122235320 | With combustion | 1 |
| 20160053989 | AQUEOUS WORKING FLUID STEAM GENERATION SYSTEM - Aqueous working fluid (WF) steam generation system including: pressure vessel containing heat exchanger; enclosed combustion air (CA) chamber; burner; another heat exchanger outside pressure vessel; and WF conduit. Heat exchanger includes first: enclosed WF chamber having WF input and output apertures (IOA); and enclosed CA passageway communicating with CAIOA and passing through enclosed WF chamber. Enclosed CA chamber includes second: enclosed WF chamber having WFIOA; and enclosed CA passageway communicating with CAIOA. Burner is connected to second CA input aperture. Another heat exchanger includes third: enclosed WF chamber having WFIOA; and enclosed CA passageway communicating with CAIOA. WF conduit connects third WF output aperture to second WF input aperture. Second WF output aperture is connected to first WF input aperture; and second CA output aperture is connected to first CA input aperture; and first CA output aperture is connected to third CA input aperture. | 02-25-2016 |
| 122235330 | With convection zone regulation | 1 |
| 20090133644 | Boiler - Provided is a boiler equipped with a burner capable of realizing a reduction in emission of harmful substances using a liquid fuel such as kerosene or A-type heavy oil. A burner ( | 05-28-2009 |
| 122240100 | Having plural fireboxes | 2 |
| 122240200 | Series connected | 1 |
| 20150354807 | ULTRA LOW NOx COMBUSTION FOR STEAM GENERATOR - A steam generator has a heat exchange chamber with an upstream end and a downstream end. The steam generator further has a burner that injects primary reactants, including fuel and combustion air, into the chamber at the upstream end. A first branch of a once-through water line is located within the chamber downstream of the burner. A second branch of the once-through water line is connected in parallel with the first branch, and is located within the chamber downstream of the first branch. A fuel injector is arranged to inject staged fuel into the chamber at a staged location downstream of the first branch of the once-through water line. | 12-10-2015 |
| 122240300 | Parallel connected | 1 |
| 20140261245 | MODULE-BASED OXY-FUEL BOILER - A boiler system for producing steam from water includes a plurality of serially arranged oxy fuel boilers. Each boiler has an inlet in flow communication with a plurality of tubes. The tubes of each boiler form at least one water wall. Each of the boilers is configured to substantially prevent the introduction of air. Each boiler includes an oxy fuel combustion system including an oxygen supply for supplying oxygen having a purity of greater than 21 percent, a carbon based fuel supply for supplying a carbon based fuel and at least one oxy-fuel burner system for feeding the oxygen and the carbon based fuel into its respective boiler in a near stoichiometric proportion. The oxy fuel system is configured to limit an excess of either the oxygen or the carbon based fuel to a predetermined tolerance. The boiler tubes of each boiler are configured for direct, radiant energy exposure for energy transfer. Each of the boilers is independent of each of the other boilers. | 09-18-2014 |
| 122247000 | Coil | 3 |
| 20080210179 | Steam Generator and Laundry Machine Comprising the Same - The present invention relates to laundry machines, and more particularly, to a steam generator for a laundry machine and a laundry machine with the same. The present invention provides a steam generator including a case having a space for turning water into steam, a heater for heating the water for generating the steam, and at least two overheating preventive means for preventing overheating of the heater, and a laundry machine with the same. | 09-04-2008 |
| 122000000 | Horizontal | 1 |
| 122461000 | Superheater | 1 |
| 20110073052 | FIRE TUBE CONDENSING BOILER FOR GENERATING HOT WATER - A fire tube condensing boiler for generating hot water, comprising a thermostatic device between an outlet connector and a portion of space for containing the water, which is adapted to let the water flow out when it reaches a preset temperature value, and further comprising an external bypass line connected at its ends to the outlet connector downstream of the thermostatic device and to the portion of space in a position that is interposed between an inlet connector and a perforated diaphragm that is arranged below a furnace and is spaced from it. | 03-31-2011 |
| 122249000 | Vertical | 1 |
| 20140116359 | BURNER, AND COMBUSTION EQUIPMENT AND BOILER COMPRISING BURNER - A burner including a fuel-containing fluid supply nozzle which supplies a fuel-containing fluid, from a connecting part in a fluid transfer flow passage for transferring a fuel-containing fluid including a fuel and a medium for transfer of the fuel, toward an outlet part provided on a furnace wall surface. The nozzle in its cross section perpendicular to the direction of flow of the fluid has a rectangular, elliptical, or substantially elliptical form having major and minor axis parts from a connecting part in the fluid transfer flow passage toward the outlet part provided on the furnace wall surface. Further, the area of a cross section perpendicular to the direction of flow of the fluid is gradually increased from the connecting part in the fluid transfer flow passage toward the outlet part. Air supply nozzle(s) for supplying combustion air are provided on the outer peripheral part of the nozzle. | 05-01-2014 |
| 122253000 | Cross | 1 |
| 122000000 | Over firebox | 1 |
| 122000000 | Front and rear header | 1 |
| 122000000 | Declined drum | 1 |
| 122471000 | Superheater | 1 |
| 20120325165 | DUAL PATH PARALLEL SUPERHEATER - A dual-path parallel superheater includes a drum for delivering steam, a steam receiving apparatus opposite the drum for receiving steam, a first surface and a second which receive steam from the drum to provide first and second paths for superheating the steam before delivering it to the steam receiving apparatus. There are also spray attemperators along the first and second paths. | 12-27-2012 |
| 122258000 | Downflow | 1 |
| 20150059659 | SUSPENDED COMBUSTION TYPE POWER STEAM GENERATOR CAPABLE OF RAPID AND HIGH-TEMPERATURE PYROLYSIS USING FRDF FOR EXTENDING RESIDENCE TIME OF HIGH-TEMPERATURE GAS - There is provided a suspended combustion type power steam generator capable of rapid and high-temperature pyrolysis using FRDF for extending residence time of high-temperature gas, and particularly the present invention improves the heating conditions of fluid in an arch water pipe, a heating water pipe and a down pipe by extending the residence time of high-temperature gas inside a combustion chamber. The present invention is an improvement of a power steam generator using fine refuse derived fuel (FRDF) which is an alternative energy source, and a flameless combustion device using fossil fuel capable of structuring a new additional facility so as to address the possibility of irregular raw material supply in the ethyl alcohol fuel operation for new renewable energy, that is, FRDF. Therefore, fuel conversion operations can be carried out and a circulation path is partially restructured so as to prevent the interruption of the natural convection function of boiler water regardless of FRDF operation or fossil fuel operations. The existing power steam generator is commonly used in 0.5 tons class and has the problem of having a short residence time of high-temperature gas according to the heating conditions of fluid in a large capacity power steam generator of 5 tons or higher. The present invention extends the residence time of high-temperature gas in the combustion chamber by installing a baffle plate portion so as to sufficiently satisfy the heating condition of fluid as the result. | 03-05-2015 |
| 122259000 | Drum type | 3 |
| 20100326373 | BOILER WITH IMPROVED HOT GAS PASSAGES - The present document describes a boiler for heating a cold fluid with a hot fluid. The boiler comprises: a lower drum; an upper drum; a plurality of right tubes for conveying the cold fluid, each of the right tubes fluidly connecting the lower drum and the upper drum, the right tubes forming a right wall, each of the right tubes comprising at least one left inwardly extending portion extending toward a left wall; and a plurality of left tubes for conveying the cold fluid, each of the left tubes fluidly connecting the lower drum and the upper drum, the left tubes forming the left wall facing the right wall, each of the left tubes comprising at least one right inwardly extending portion, each extending toward the right wall; wherein the at least one right inwardly extending portion is contiguous to and staggered with the at least one left inwardly extending portion, forming at least two passages between the right wall and the left wall, each one of the at least two passages having first and second ends and being substantially isolated from each other between each of its respective first and second ends; in use, the hot fluid circulates in the at least two passages and heats the right tubes and the left tubes, thereby heating the cold fluid. | 12-30-2010 |
| 20110000445 | Package boiler having steam generating units in tandem - A natural circulation water tube package boiler is assembled in a factory in two self-contained steam generating units. The first unit has a combustion chamber, but no convection tubes. The second unit has convection tubes, but no combustion chamber. Each unit has a mud drum, a steam drum, and tubes connecting the drums. Each steam generating unit is transported separately by truck or railcar to the operating site, where the rear end of the first unit is connected to the front end of the second unit by a large connecting duct; the mud drums of the respective units are connected to each other by water piping; the steam drums of the respective units are connected to each other by water piping and steam piping located above and below the waterline respectively; and the steam drum of the second unit is connected to the water drum of the first unit by water piping. The two steam generating units operate in tandem, with combustion gases flowing through the full width of both units serially, and out the rear of the second unit. | 01-06-2011 |
| 20150040842 | Thermal Storage Condensing Boiler or Heat Exchanger - A very high efficiency steam producing heater and boiler is disclosed wherein an outer vault encases an inner casing with a small exhaust passage there between. The walls of the casing contain a series of capillary tubes through which water flows. A combustion chamber in the lower portion of the casing provides a source of heat for the water which flows from the casing into a series of water drums located near the combustion chamber. From the water tubes, the heated water then passes through a serpentine series of steam tubes and then upward into one or more steam drums. Steam passes through the steam drums out of the casing and vault for commercial or residential usage. | 02-12-2015 |
| 122260000 | Flat | 2 |
| 20100139578 | BOILER WITH FLAT HORIZONTAL TUBES - The present invention relates to a boiler having horizontally arranged flat rectangular water tubes comprising: a water chamber; an inner water chamber to be connected with horizontal water tubes, said horizontally arranged water tubes forming multi-step water tube groups; induction plates provided in the inner water chamber blocking the water path of the horizontal water tubes alternatingly in such a manner as to bend the water path in a zigzag manner; an exhaust gas discharge conduit in straight lattice lines formed by narrow gaps between the horizontal water tubes; and an exhaust gas discharge chamber formed in an upper water chamber. The flat horizontally arranged rectangular water tubes are narrow in their width, making it possible to arrange them densely in the limited space of the combustion chamber, and with their increased heat receiving areas, the water tubes can heat the water in the boiler fast. | 06-10-2010 |
| 20140299074 | BOILER WITH FLAT HORIZONTAL TUBES - The present invention relates to a boiler having horizontally arranged flat rectangular water tubes comprising: a water chamber; an inner water chamber to be connected with horizontal water tubes, said horizontally arranged water tubes forming multi-step water tube groups; induction plates provided in the inner water chamber blocking the water path of the horizontal water tubes alternatingly in such a manner as to bend the water path in a zigzag manner; an exhaust gas discharge conduit in straight lattice lines formed by narrow gaps between the horizontal water tubes; and an exhaust gas discharge chamber formed in an upper water chamber. The flat horizontally arranged rectangular water tubes are narrow in their width, making it possible to arrange them densely in the limited space of the combustion chamber, and with their increased heat receiving areas, the water tubes can heat the water in the boiler fast. | 10-09-2014 |
| 122332000 | Vertical | 1 |
| 122336000 | Offset firebox | 1 |
| 20160195260 | Power Boiler having Vertically Mounted Cylindrical Combustion Chamber | 07-07-2016 |
| 122236000 | Fluid fuel | 1 |
| 20120137989 | STEAM GENERATOR - A steam generator including a steam chamber defining an enclosed fluid chamber with a plurality of tubes passing through the steam chamber, a combustion chamber defining a closed fluid chamber and an air channel coupled to a burner, and a heat transfer section defining a closed fluid chamber and an air passage in fluid communication with a vacuum source, in which the burner generates a heated air mixture, the vacuum source draws the heated air mixture from the combustion chamber air channel, through the steam chamber plurality of tubes and through the heat transfer section air passage so as to heat fluid passing through the heat transfer section, the steam chamber and the combustion chamber fluid chamber. | 06-07-2012 |
| 122365000 | Drums and couplings | 1 |
| 20110265735 | BOILER STRUCTURE - A boiler structure that allows for an appropriate flow-rate distribution of an internal fluid to multiple divided furnace wall surfaces (water-wall) without excessive pressure loss so as to reduce the pressure loss (friction loss) occurring between furnace inlet headers and outlet headers is provided. In a boiler structure having a furnace water-wall ( | 11-03-2011 |
