US3709473A - Heating apparatus - Google Patents

Heating apparatus Download PDF

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Publication number
US3709473A
US3709473A US00063855A US6385570A US3709473A US 3709473 A US3709473 A US 3709473A US 00063855 A US00063855 A US 00063855A US 6385570 A US6385570 A US 6385570A US 3709473 A US3709473 A US 3709473A
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Prior art keywords
combustion chamber
air
combustion
chamber shell
heat exchange
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Expired - Lifetime
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US00063855A
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English (en)
Inventor
T Ito
T Nomaguchi
N Tabata
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority claimed from JP6745469A external-priority patent/JPS4933374B1/ja
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C13/00—Apparatus in which combustion takes place in the presence of catalytic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/0027—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters using fluid fuel
    • F24H1/0045—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters using fluid fuel with catalytic combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
    • F24H3/087—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1877—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1877—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1881—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel

Definitions

  • HEATING APPARATUS [75] Inventors: Toshio Ito; Tamotsu Nomaguchl; Norikazu Tabata, all of Amagasaki, Japan [73] Assignee: Milsuhlshi Electric Tokyo, Japan [22] Filed: Aug. 14,1970
  • ABSTRACT Heating apparatus for producing hot water or warm air which comprises an air blowing device, a compact combustion apparatus having a high load factor in which a combustion catalyst is employed, and a compact heat exchanger which is well-matched to the combustion apparatus, whereby high efficiency and high performance in the combustion and heat exchange processes are achieved.
  • This invention therefore aims at providing an improved heating apparatus for producing hot water or warm air wherein a combustion apparatus is arranged such that air being forceably introduced from the outside and fuel gas being provided under suitable pressure are injected thereinto by being divided into as many portions as possible so as to enhance the fuel-air mixing efficiency by a resultant ejector effect, and in which there is provided a catalyst for producing on its surface a large amount of active molecules effective for execution of chain reactions of combustion, thereby to obtain complete combustion of extremely high stability, and further having a heat exchange device arranged such that a large pressure loss results during passing of the combustion gas therethrough, the device preferably having many ducts or fins provided downstream of the catalyst over which cool water or air may be passed to produce the desired hot water or warm air.
  • a further object of this invention is to provide a heating apparatus for producing warm air in which high thermal efficiency is provided.
  • a still further object of this invention is to provide a heating apparatus in which effective heat exchange is provided prior to introducing a combustion gas in a heat exchanger, so that the load of the heat exchanger itself is lightened.
  • Still a further object of this invention is to provide a compact heating apparatus in which pressure losses in both a combustion chamber and a heat exchanger are substantially similar.
  • Yet another object of this invention is to provide a heating apparatus in which stabilized and quiet combustion is provided.
  • Still yet another object of this invention is to provide a heating apparatus in which a stable starting point for ignition is provided, so as to thereby obtain stabilized and quiet combustion.
  • FIG. 1 is a sectional view of a conventional heating apparatus for producing hot water
  • FIG. 2 is a sectional view of an embodiment of a heating apparatus for producing hot water formed according to the teachings of this invention
  • FIG. 3 is a sectional view of an embodiment of a heating apparatus for producing warm air formed according to the teachings of this invention
  • FIG. 4 is a sectional view of combustion apparatus which is a part of another embodiment of this invention.
  • FIG. 5 (a) is a partial enlarged view of the mixing plate shown in FIG. 4;
  • FIG. 5 (b) is a cross-sectional view taken along the line V-b V-b ofFIG. 5 (a).
  • FIG. 1 a conventional heating apparatus for producing hot water is shown, in which the reference number 1 indicates a gas burner having a fuel gas inlet pipe 2, a primary air suction nozzle 3 and a combustion nozzle 4.
  • the reference number 5 indicates a cylindrical water jacket positioned at one end of the burner 1 through'which water is fed from a cold water inlet pipe 6 in a lower part thereof to a hot water outlet pipe 7 in the upper end.
  • An annular space between the gas burner 1 and the water jacket 5 provides an inlet 8 for drawing in secondary air.
  • l-leat exchanging fins 9 which are thermally connected with a water jacket 10 through a fin cooling pipe are disposed in the end of the cylindrical jacket 5 opposite the burner 1 and spaced therefrom to define therebetween a combustion chamber 1 1.
  • the fuel gas is fed through the gas inlet pipe 2 under pressure and is mixed by drawing primary air 7 through the nozzle 3.
  • the mixture is ignited and flame is initiated at the outlet of combustion nozzle 4 whereby combustion is provided in the combustion space 11 with secondary air being drawn by natural convection current through the gap 8.
  • the combustion gas is cooled as it passes over the heat exchanging fins 9 and pipes 10 while water in the jacket 5 is heated by the hot combustion space it encompasses.
  • FIG. 2 there is shown a heating apparatus for producing hot water embodying the teachings of this invention, in which the reference number 12 indicates an air blower, such as one having blast pressure of 10mm water head, and the reference numeral 13 indicates a cylindrical combustion chamber shell which is tapered at one end and is preferably made of refractory case metal.
  • the air blower 12 is connected to the tapered end of the cylindrical outer shell 13 and an air flow-dividing plate 14, which is illustrated as a disc positioned in the same end of the shell 13 with a plurality of holes formed therein, preferably being made of stainless steel, divides the air flow being fed through the air blower 12.
  • Each air duct or pipe 15 is positioned in the corresponding hole 18 of the mixing plate 17 in such a manner that the outlet of each duct is disposed intermediate the length of its respective hole 18.
  • the mixing plate 17 is a heat insulating disc which may be made of alumina, zirconia or the like.
  • Fuel gas such as, for example, city gas or LP gas, or a mixture of fuel gas and primary or preliminary air, is supplied from an inlet port 20 into the space between the dividing plate 14 and mixing plate 17.
  • a catalyst 21 is illustrated as being a disc positioned in the shell 13 downstream of the mixing plate 17 having a plurality of capillaries 22 therethrough, and preferably is made of a porous high-purity metal oxide such as about percent by weight of alumina (A1 0 zirconia, magnesia or the like.
  • the space between the mixing plate 17 and the catalyst 21 comprises the antechamber 16.
  • Another space 23 on the downstream side of the catalyst disc 21 is for completing chain reactions of combustion.
  • a heat exchanger 25 is provided downstream of the combustion space 23 and is made of, for example, stainless steel, copper or the like.
  • the exchanger 25 has a plurality of pipes 26 therein through which the high temperature combustion gas is passed. Water is fed from a cold water inlet pipe 27 at the downstream end of the device to a hot water outlet pipe 28 near the combustion space 23.
  • the operation of the heating apparatus shown in FIG. 2 is as follows:
  • the air being fed from the blower 12 passes partly through the air ducts 15 and is mixed with fuel gas supplied through the inlet port 20 in the mixing plate 17 and is ignited by a pilot flame 24 in the antechamber 16, whereby combustion is initiated therein through the holes 18.
  • the catalyst 21 is promptly heated by the combustion in the antechamber 16, and full-scale combustion is initiated in the inner surfaces of the capillaries 22 formed in the catalyst 21 approximately ten seconds after ignition, thereby providing an almost flameless combustion. Accordingly, only a small space 23 is required for the slip stream of the catalyst 21, and for supplying uninterrupted heat of a full-scale combustion.
  • the catalyst 21, being made of a refractory heat insulator, such as alumina, functions to produce on its surface, at high efficiency, the active molecules useful in chain reactions of combustion in a hot atmosphere. Combustion in the capillaries 22 proceeds smoothly and promptly, causing additional rise of temperature of the catalyst 21 and thereby increasing its catalytic effect.
  • the surface temperature of the catalyst 21 reached a level of l,400 C.
  • the mixing plate 17 may be made of the same material as the heat catalyst 21, but metal may also be used to obtain similar stability of combustion. Both the air ducts or pipes 15 and the mixing plate 17 are thereby kept at a relatively low temperature since they are constantly being cooled with pre-combustion gas.
  • the heat exchange capacity of a heat exchanger is proportional to the difference between combustion gas temperature, tg, and the heat exchanger wall temperature, tw, i.e. (tg tw).
  • tg combustion gas temperature
  • tw heat exchanger wall temperature
  • the heat conductivity can be increased and the heat exchange may be easily made by providing a pipe of smaller diameter or a smaller spacing between plates, whereby the heat exchanger 25 may be compacted.
  • pressure loss of the heat exchanger 25 is increased.
  • the pressure loss of the heat exchanger 25 can be high because the air blower is provided.
  • each pipe 26 or the space between each of a plurality of plates of the heat exchanger 25 can be smaller than that of conventional heat exchangers, and thereby the heat exchanger 25 can be compacted. It is therefore possible to compact the combustion apparatus and the heat exchanger 25, while providing high pressure loss.
  • the heating apparatus of this invention can be compacted, even though the pressure loss is different in said each part.
  • both the flow-dividing plate l4 and the mixing plate 17 had a diameter of 50mm, and the air ducts were prepared by using 37 pieces of steel pipes, each having a length of 15mm, and an outer diameter of 5mm.
  • the mixing plate 17 was perforated to form the holes 18 with diameters of 6mm, and a 10mm thick catalyzer plate 21 having 85 holes of 3mm diameter each was positioned mm behind the mixing plate 17.
  • the heat exchanger 25 had many pipes having diameters of 6mm and being 130mm in length and the blowing pressure of the blower 12 was lOmrn H O. Pressure loss of the combustion apparatus was about 5mm H 0. and pressure loss of the heat exchanger was also about 5mm H O.
  • the volume of the heating apparatus for producing hot water in this experiment was about 1 liter for the combustion apparatus and about I liter for the heat exchanger, or a total volume of 2 liters, and combustion of 6,000 K cal/hr was obtained with a combustion coefficiency of percent.
  • the arrangement and configuration of the com ponent parts of the apparatus are not restricted to the above embodiment. It is also possible, according to this invention, to obtain extremely compacted heating apparatus for producing hot water by other arrangements of the general combination of the blower, the combustion apparatus using the catalyst, and the heat exchanger having small diameter pipes or small spaces between plate members which produce high pressure loss.
  • FIG. 3 Another embodiment of the heating apparatus being adapted for producing warm air and constructed according to the present invention is shown in FIG. 3. This embodiment is substantially like that shown in FIG. 2, with the exception of the parts described hereinbelow.
  • Reference numeral 29 indicates a fuel gas inlet part at one end of the device and the reference numeral 30 indicates an air inlet port connected to the blower for supplying air between the dividing plate 14 and the mixing plate 17.
  • the fuel gas inlet port and the air inlet port may be observed as being reversed in the embodiments of FIG. 2 and FIG. 3.
  • Two sheets of catalysts 21 are provided in this embodiment, forming an antechamber 16 behind the mixing plate 17 and a combustion chamber 31 therebetween and another combustion chamber 23 downstream thereof, going to the heat exchanger 25.
  • An end plate 32 is provided on the combustion side of the heat exchanger 25 being connected to the cylindrical shell 13 by a tapered shell 33.
  • the heat exchanger 25 has a plurality of pipes 26 open into chamber 23 over which the air supplied by a blower 3d can be passed, by directly contacting the outer surface of each pipe 26.
  • the reference numeral 35 indicates a combustion exhaust gas outlet duct.
  • the operation of the heating apparatus for warming the air shown in FIG. 3 is similar to that of FIG. 2, with the exception, however, that the full-scale combustion gas passed through the catalysts 21 and combustion chambers 31 and 23 is exhausted through the heat exchanging pipes 26 connected to the end plate 32, and from the exhaust gas outlet duct 35 to outside the apparatus.
  • the outer shell 13 of the combustion apparatus, the tapered shell 33, the end plate 32 and the heat exchanging pipes 26 are cooled by the air supplied from the blower 34, while the air is simultaneously heated to become warm air, which may be utilized for heating a room.
  • the full-scale combustion is performed with the rate of air-to-fuel gas being approximate to the stoichiometrically determined value, and thereby the resultant enhancement of combustion gas temperature and catalyst temperature are achieved.
  • the heat exchange is accordingly made by blowing the air from the blower 34 over the outer surface of the combustion chamber shell 13.
  • This conduction effect may be increased by providing a fin on the combustion chamber shell 13.
  • the heat conduction of end plate 32 is increased by heat radiation from the catalysts 21 and heat conduction caused by contraction and collision of the combustion gas at the time of introducing the gas into the heat exchanging pipes 26.
  • one of the characteristic advantages of this invention is that the load of the heat exchanger can be minimized by providing heat exchange with the air, prior to introducing it in the heat exchanging pipes 26, from the combustion chamber shell 13, the end plate 32 and the tapered shell 33, under the utilization of enhancement of combustion gas temperature and high radiation heat conduction of the catalysts.
  • an additional 50 percent of input quantity of heat was obtained as warm air suitable for room heating from the combustion chamber shell 13, the end plate 32 and the tapered shell 33 in the combustion apparatus having two sheets of catalyst, each having a diameter of 70mm, and having a fuel gas input of 3,000 k. cal/hr.
  • the compact and high efficiency heating apparatus for producing warm air of this invention can be constructed with the combination of the blower, the combustion apparatus using the catalyst and the heat exchanger providing the pipes having high pressure loss, by which the air is warmed by the cooling of the combustion chamber shell 13, the heat exchanger and the joint with the blower.
  • fullscale combustion is performed with the rate of air-tofuel gas being approximated to the stoichiometrically determined value to result in the enhancement of combustion gas temperature and catalyst temperature.
  • the heating apparatus for producing warm air of this invention can be used not only for room-heating, but also for plant culture hot-house heating, since the exhaust gas is exhausted to an outer room and the heat exchange coefficiency is quite high. Also it is suitable for using warm air for drying clothing, since no moisture caused by combustion of hydrogen contained in fuel gas is included, inasmuch as the combustion gas is indirectly used by the highly efficient heat exchange.
  • Any moisture which may be caused by combustion of hydrogen contained in fuel gas is easily condensed and recovered, because of the high efficiency of the heat exchanger. If the air in the room is made dry by using the warm air for room heating, it is possible to provide suitable humidity by feeding this condensed water to an under part of the blower.
  • FIGS. 4 and 5 Another embodiment of the heating apparatus for 6 producing hot water or warm air constructed according to this invention, is shown in FIGS. 4 and 5. It will be mainly described by referring to the differences between it and the embodiments of FIGS. 2 and 3.
  • the combustion chamber shell 13 is divided into two parts, one of which is inserted in the other.
  • a plurality of air holes 36 are provided in the mixing plate 17.
  • the characteristic advantage of this embodiment is to arrange the mixing plate 17, the ducts 15 and the air holes 36 so that the initiation of flame is smooth and gentle and, also, so that burning flames are stable and make little noise, thus realizing almost soundless combustion.
  • FIGS. 5a and 5b are partial enlarged views of the mixing plate 17, the operation of the embodiment is stated.
  • the reference numeral 37 indicates the primary flames produced by turbulent mixture of air and fuel and 38 indicates the secondary flames produced by laminar flow type mixture of air and fuel.
  • the ends of the ducts 15 extend beyond the mixing plate 17 by a length substantially equal to the diameter thereof and a plurality of air holes 36 are formed in the mixing plate in a slightly spaced and surrounding relation with these ducts 15.
  • the primary flames 37 are produced in the following manner: when passing through the air holes 36, air is partly turned into a turbulent flow and this turbulent flow, along with a part of the fuel being discharged from the ducts 15, is trapped in a pocket of negative pressure produced at the juncture between the ducts 15 and the mixing plate 17, whereby they become mixed in a turbulent manner.
  • the secondary flames are produced by a gentle laminar flow type mixing of the air and fuel, and their starting point is stabilized by the primary flames. Thus, stabilized flames are produced around the portions of the ducts 15 extending beyond the mixing plate 17, with these protruding portions acting like wicks.
  • the positional relationship between the ducts 15 and the air holes 36 is such that turbulent mixing of the air and the fuel gas is caused at the juncture of the air ducts 15 ,and the mixing plates 17 to give rise to the primary flames which provides a stabilized starting point for the secondary flames.
  • any desired combustion can be obtained by suitably modifying the fuel gas feeding and air feeding ports.
  • pressure of city gas or LP gas can be used and also a blower can be used for providing pressure to the fuel gas.
  • a blower, or if necessary a compressor, can be used for providing the pressure to the air.
  • a blower may be provided behind the heat exchanger for drawing them therethrough.
  • a heating apparatus comprising:
  • a flow-dividing plate in said shell having a plurality of through holes
  • a catalyst member having a plurality of through capillaries positioned in said combustion chamber shell behind said mixing plate;
  • ducts each having one end connected to a corresponding one of said plurality of holes formed in said flow-dividing plate and the other end disposed in and extending through and beyond a corresponding one of said plurality of holes in said mixing plate and into said antechamber;
  • a first inlet port positioned in said combustion chamber shell forward of said flow-dividing plate for admitting either air or fuel gas
  • a second inlet port positioned in said combustion chamber shell between said flow-dividing plate and said mixing plate for admitting the other of said air or fuel gas
  • blower providing pressure to said air corresponding to the pressure loss in said combustion chamber shell and said heat exchanger.
  • the heating apparatus set forth in claim 1 for producing hot water further comprising means for circulating water over said heat exchange means.
  • the heating apparatus set forth in claim 1 further comprising means for forcing air over said combustion chamber shell and said heat exchange means for producing warm air.
  • the heating apparatus set forth in claim 3 including a plurality of spaced catalyst members in said combustion chamber shell between said mixing plate and said heat exchange means.
  • said heat exchange means includes a plurality of pipes through which said combustion gas is passed.
  • a heating apparatus for producing warm air comprising:'
  • a flow-dividing plate in said shell having a plurality of through holes
  • a catalyst member having a plurality of through capillaries positioned in said combustion chamber shell behind said mixing plate;
  • a first inlet port positioned in said combustion chamber shell forward of said flow-dividing plate for admitting either air or fuel gas
  • a second inlet port positioned in said combustion chamber shell between said flow-dividing plate and said mixing plate for admitting the other of said air or fuel gas;
  • blower providing pressure to said air corresponding to the pressure loss in said combustion chamber shell and said heat exchanger
  • said combustion chamber shell being tapered outwardly for covering the space between said combustion chambershell and said heat exchange means behind said catalyst member, so that the juncture of said shell and said heat exchange means is of greater cross-sectional area than that of said shell.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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US00063855A 1969-08-26 1970-08-14 Heating apparatus Expired - Lifetime US3709473A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP6745469A JPS4933374B1 (enrdf_load_stackoverflow) 1969-08-26 1969-08-26
JP7016469 1969-09-04
JP8989469 1969-11-10

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US (1) US3709473A (enrdf_load_stackoverflow)
CA (1) CA929060A (enrdf_load_stackoverflow)
DE (1) DE2042364B2 (enrdf_load_stackoverflow)
FR (1) FR2059193A5 (enrdf_load_stackoverflow)
GB (1) GB1282995A (enrdf_load_stackoverflow)

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US3782887A (en) * 1972-09-28 1974-01-01 Tri Men Mfg Inc Gaseous fuel burner
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US4104018A (en) * 1976-11-26 1978-08-01 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Combuster
US4271789A (en) * 1971-10-26 1981-06-09 Black Robert B Energy conversion system
US4412509A (en) * 1973-06-11 1983-11-01 Black Robert B Energy conversion system and components thereof
FR2647882A1 (fr) * 1989-05-30 1990-12-07 Giuntoli Jacques Chaudiere comportant au moins un circuit d'eau
US5203690A (en) * 1988-07-08 1993-04-20 Nippon Chemical Plant Consultant Co., Ltd. Combustion apparatus
US5437158A (en) * 1993-06-24 1995-08-01 General Electric Company Low-emission combustor having perforated plate for lean direct injection
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US6226983B1 (en) * 1999-06-07 2001-05-08 Professional Chemicals Corporation Fuel injected heat exchanger for internal combustion engine exhaust
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EP1205712A3 (en) * 2000-11-14 2002-07-24 General Electric Company Catalytic combustor flow conditioner and method for providing uniform gas velocity distribution
US6431856B1 (en) * 1995-12-14 2002-08-13 Matsushita Electric Industrial Co., Ltd. Catalytic combustion apparatus
ES2272112A1 (es) * 2003-12-10 2007-04-16 Jose Maria Vergara Uranga Calefactor aerotermo compacto.
US20130292099A1 (en) * 2011-01-06 2013-11-07 Clean Rolling Power, LLC Multichamber heat exchanger
WO2019246600A1 (en) * 2018-06-22 2019-12-26 Goodman Manufacturing Company, L.P. System and method for heating
US11156356B2 (en) * 2013-02-14 2021-10-26 Clearsign Technologies Corporation Fuel combustion system with a perforated reaction holder
US11542053B2 (en) * 2017-05-10 2023-01-03 Gea Food Solutions Weert B.V. Heating means for a flow wrapper

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IT7920865U1 (it) * 1979-02-22 1980-08-22 Vezzoli Louis Alex Generatore catalitico d'aria calda e d'acqua calda
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DE3113416A1 (de) * 1981-04-03 1982-10-21 Ruhrgas Ag, 4300 Essen Verfahren zum betrieb eines einem luftstrom ausgesetzten gasbrenners sowie brenner zur durchfuehrung des verfahrens
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EP0198948A3 (en) * 1985-04-11 1988-09-21 Nippon Shokubai Kagaku Kogyo Co., Ltd Catalytic combustor for combustion of lower hydrocarbon fuel
DE3603387A1 (de) * 1986-02-05 1987-08-06 Kurt Krieger Verfahren zum betreiben eines gas-infrarotstrahlers und gas-infrarotstrahler
DE3732653A1 (de) * 1987-09-28 1989-04-13 Mototech Motoren Umweltschutz Heizkessel bzw. warmwasserbereiter zur waermegewinnung aus gasfoermigen kohlenwasserstoffhaltigen brennstoffen
DE8716828U1 (de) * 1987-12-22 1989-04-27 Vießmann, Hans, Dr., 3559 Battenberg Gasheizkessel
US5000004A (en) * 1988-08-16 1991-03-19 Kabushiki Kaisha Toshiba Gas turbine combustor
DE3936806C2 (de) * 1989-11-04 1995-04-20 Deutsche Forsch Luft Raumfahrt Dampferzeuger
JP2524025B2 (ja) * 1991-09-24 1996-08-14 株式会社神戸製鋼所 低カロリ―ガスの燃焼バ―ナ構造およびその燃焼方法
DE4204603C2 (de) * 1992-02-15 1996-02-29 Hager & Elsaesser Vorrichtung zur mehrstufigen, katalytischen Verbrennung von stickstoffhaltigen Gasen
JP2632635B2 (ja) * 1993-02-25 1997-07-23 株式会社ヒラカワガイダム 水管群を有するボイラの燃焼装置と該燃焼装置を使用するボイラの燃焼方法
DE20221983U1 (de) 2002-09-17 2010-03-04 Alstom Technology Ltd. Dampferzeuger zum Erzeugen von Wasserdampf, insbesondere Reinstwasserdampf

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US2425630A (en) * 1942-03-25 1947-08-12 Stewart Warner Corp Internal-combustion airplane heater
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Cited By (26)

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US4271789A (en) * 1971-10-26 1981-06-09 Black Robert B Energy conversion system
US3782887A (en) * 1972-09-28 1974-01-01 Tri Men Mfg Inc Gaseous fuel burner
US4412509A (en) * 1973-06-11 1983-11-01 Black Robert B Energy conversion system and components thereof
JPS5128839U (enrdf_load_stackoverflow) * 1974-08-27 1976-03-02
US4104018A (en) * 1976-11-26 1978-08-01 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Combuster
US5203690A (en) * 1988-07-08 1993-04-20 Nippon Chemical Plant Consultant Co., Ltd. Combustion apparatus
FR2647882A1 (fr) * 1989-05-30 1990-12-07 Giuntoli Jacques Chaudiere comportant au moins un circuit d'eau
US5437158A (en) * 1993-06-24 1995-08-01 General Electric Company Low-emission combustor having perforated plate for lean direct injection
US6431856B1 (en) * 1995-12-14 2002-08-13 Matsushita Electric Industrial Co., Ltd. Catalytic combustion apparatus
WO2000073711A1 (en) * 1999-05-27 2000-12-07 Thomas & Betts International, Inc. Compact high-efficient air heater
US6308702B1 (en) 1999-05-27 2001-10-30 Thomas & Betts International, Inc. Compact high-efficiency air heater
US6226983B1 (en) * 1999-06-07 2001-05-08 Professional Chemicals Corporation Fuel injected heat exchanger for internal combustion engine exhaust
KR100748763B1 (ko) 2000-02-24 2007-08-13 스웹 인터네셔널 에이비이 유체 촉매처리 장치
WO2001063174A1 (en) * 2000-02-24 2001-08-30 Swep International Ab A device for catalytic treatment of fluids
US20030051865A1 (en) * 2000-02-24 2003-03-20 Fredrik Stromer Device for catalytic treament of fluids
US6986871B2 (en) * 2000-02-24 2006-01-17 Swep International Ab Device for catalytic treatment of fluids
US6460345B1 (en) 2000-11-14 2002-10-08 General Electric Company Catalytic combustor flow conditioner and method for providing uniform gasvelocity distribution
EP1205712A3 (en) * 2000-11-14 2002-07-24 General Electric Company Catalytic combustor flow conditioner and method for providing uniform gas velocity distribution
ES2272112B1 (es) * 2003-12-10 2008-05-01 Jose Maria Vergara Uranga Calefactor aerotermo compacto.
ES2272112A1 (es) * 2003-12-10 2007-04-16 Jose Maria Vergara Uranga Calefactor aerotermo compacto.
US20130292099A1 (en) * 2011-01-06 2013-11-07 Clean Rolling Power, LLC Multichamber heat exchanger
US9587889B2 (en) * 2011-01-06 2017-03-07 Clean Rolling Power, LLC Multichamber heat exchanger
US11156356B2 (en) * 2013-02-14 2021-10-26 Clearsign Technologies Corporation Fuel combustion system with a perforated reaction holder
US11542053B2 (en) * 2017-05-10 2023-01-03 Gea Food Solutions Weert B.V. Heating means for a flow wrapper
WO2019246600A1 (en) * 2018-06-22 2019-12-26 Goodman Manufacturing Company, L.P. System and method for heating
US20190390875A1 (en) * 2018-06-22 2019-12-26 Goodman Manufacturing Company, L.P. System and Method for Heating

Also Published As

Publication number Publication date
GB1282995A (en) 1972-07-26
DE2042364A1 (de) 1971-06-09
CA929060A (en) 1973-06-26
FR2059193A5 (enrdf_load_stackoverflow) 1971-05-28
DE2042364B2 (de) 1976-08-05

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