WO1997021957A1 - Dispositif de combustion catalytique - Google Patents
Dispositif de combustion catalytique Download PDFInfo
- Publication number
- WO1997021957A1 WO1997021957A1 PCT/JP1996/003582 JP9603582W WO9721957A1 WO 1997021957 A1 WO1997021957 A1 WO 1997021957A1 JP 9603582 W JP9603582 W JP 9603582W WO 9721957 A1 WO9721957 A1 WO 9721957A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat
- catalyst body
- catalytic
- radiation
- combustion
- Prior art date
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Classifications
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- 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
- F23D14/12—Radiant burners
- F23D14/18—Radiant burners using catalysis for flameless combustion
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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
- F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
- F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
- F23C6/045—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure
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- 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
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- 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
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
Definitions
- the present invention aims to perform catalytic combustion of a gaseous or liquid fuel by vaporizing the gaseous or liquid fuel, and to perform heating, heating, drying, etc., using generated combustion heat and exhaust gas.
- the present invention relates to a catalytic combustion device having good exhaust gas characteristics.
- a catalytic combustion device for performing heating, heating, drying, and the like by catalytically burning a gaseous fuel or a liquid fuel generally has a configuration as shown in FIG.
- the fuel gas supplied from the fuel supply valve 1 is mixed with the air supplied from the air supply valve 2 in the premixing chamber 3 and sent to the preheating parner 4 as a premixed gas. It is ignited by the ignition device 5 and forms a flame in the preheating burner 4.
- the high-temperature exhaust gas generated by the flame passes through the catalyst 7 provided in the combustion chamber 6 while heating, and is discharged from the exhaust port 8.
- the fuel supply is once stopped by the fuel supply valve 1 to extinguish the flame. Immediately after that, refueling starts catalytic combustion.
- the catalyst body is in a high temperature state, and radiates and radiates heat through the glass 9 provided at a position facing the upstream side of the catalyst body, and radiates heat as high-temperature exhaust gas from the exhaust port 8. Heating and heating were done by doing. Since catalytic combustion is surface combustion, a large amount of radiation is emitted from the catalytic body according to the temperature of the catalytic body and the apparent surface area of the catalytic body. In a catalytic combustion device that heats and heats by exchanging heat using a heat medium, the combustion heat generated on the catalyst body must be efficiently exchanged with the heat medium. For that purpose, it is necessary to effectively exchange radiation from the surface of the catalyst body.
- an object of the present invention is to realize a catalytic combustion device with high heat exchange efficiency that effectively utilizes radiation from the surface of a catalyst body in order to solve the above-mentioned problems.
- the heat of combustion on the catalyst body is transferred to the combustion chamber by heat conduction from the attachment part to the combustion chamber.
- the temperature of the catalyst body near the catalyst body holder decreases, the catalyst activity decreases locally, and exhaust gas containing unburned components is discharged.
- an object of the present invention is to provide a catalytic combustion device that prevents unburned components from being discharged from a portion where a catalyst body is attached to a combustion chamber, and has excellent exhaust gas characteristics. Furthermore, when the sensible heat of the combustion gas is exchanged by a heat exchanger such as a fin tube, if the heat exchanger is installed above the catalyst body, the combustion ripening of the combustor itself will occur when the combustor is started. Since the exhaust gas temperature did not rise so much because of the temperature rise, there was a possibility that dew condensation occurred on the heat exchanger and wet the catalyst. If the catalyst body gets wet with dew water, the temperature will drop and the catalytic reaction will decrease, which may locally reduce the reaction characteristics. In addition, since condensation cannot be formed on the heat exchanger, aggressive replacement cannot be performed, and Latent heat had to be discharged as exhaust loss without recovery.
- a heat exchanger such as a fin tube
- the present invention provides a heat exchanger above the heat exchanger, and discharges the dew water generated on the heat exchanger to the outside of the combustor to locally control the combustion characteristics due to the dew water.
- the purpose of this method is to prevent mechanical disturbance and maintain a stable combustion state.
- the objective is to realize a catalytic combustion device with extremely high heat exchange efficiency by recovering the latent heat in the combustion gas.
- the invention according to claim 1 is a fuel supply unit for supplying fuel, an air supply unit for supplying air for combustion, a fuel supplied from the fuel supply unit, and a fuel supply from the air supply unit.
- a premixing chamber that mixes air to form a mixed gas, a plate-like catalyst body made of a porous body that catalytically burns the mixed gas, and a plate provided downstream of the premixing chamber, And a combustion chamber having a first radiant receiving part arranged as a part of a side wall disposed opposite to one of both surfaces of the catalyst body.
- the first radiation heat receiving section may have a heat medium flow path in close contact or with a built-in heat medium flow path.
- a second radiation heat receiving portion disposed opposite to the other of the two surfaces of the catalyst body may be a part of a side wall.
- the second radiation heat receiving section may have a heat medium flow path in close contact or with a built-in heat medium flow path.
- a plate-shaped second catalyst body made of a porous body is provided at an outlet of the combustion chamber. It may be.
- a radiation absorption layer may be provided on a surface of the first radiation heat receiving portion of the combustion chamber portion.
- a radiation absorption layer may be provided on the surface of the second radiation heat receiving portion inside the combustion chamber.
- the catalytic combustion device may further include a heat exchange unit provided downstream of the combustion chamber, and the combustion chamber may be located above the heat exchange unit.
- a catalyst body having a plurality of communication holes for burning a mixed gas of fuel and air, and the catalyst body is housed, and is opposed to an upstream side surface in a flow direction of the mixed gas of the catalyst body.
- a combustion chamber having a radiant heat receiving body installed as a first heat medium flow passage provided in a radiant heat receiving plate, and a second heat medium flow passage provided downstream of the catalyst body and having a large number of fins.
- the catalytic combustion device includes a heat medium flow path and an exhaust path provided between the fins, and a large number of the fins are disposed at positions opposed to at least both ends of the catalyst body.
- a catalytic combustion device burns under the condition that the upstream part of the catalyst body is at the highest temperature, and utilizes a large amount of radiation ripening from the upstream surface of the high temperature catalyst body.
- a plate-shaped catalyst with a large apparent catalyst surface area is used and a radiation heat receiving part is provided at a position facing the catalyst, a large amount of radiant heat transfer from the catalyst body surface is received by the radiation heat receiving part. be able to.
- the radiated heat receiving part receives or has a built-in heat medium flow path, which transfers heat to the heat medium flow path and further exchanges heat with the heat medium in the flow path.
- the heat transfer to the radiant heat receiving portion is radiant heat transfer, so that heat can be uniformly removed from the entire catalyst body.
- the temperature unevenness that occurs when heat of combustion is removed from a part of the catalyst body by direct heat conduction cannot be achieved, and a large amount of combustion ripening on the catalyst body can be transmitted to the heat medium while maintaining a stable combustion state.
- the temperature of the upstream surface which is the highest temperature part of the catalyst body, can be lowered by the active ripening exchange by the radiant heat receiving part, the amount of combustion can be reduced without raising the catalyst body to the ripening resistance temperature. It can be larger. Therefore, the catalytic combustion device S that performs heat exchange using a heat medium can be compactly realized.
- first and second radiation heat receiving portions are provided opposite to both surfaces of the plate-like catalyst body, radiation from both surfaces of the catalyst body is captured by the first and second radiation heat reception portions, and heat exchange is performed.
- the outer wall of the catalytic combustion device is composed of the first and second radiation heat receiving portions, the temperature of the outer wall of the combustion combustion device can be kept low. Therefore, heat radiation loss due to natural convection heat radiation and radiant heat radiation from the outer wall of the catalytic combustion device can be reduced, and the mature exchange efficiency can be increased.
- the temperature of the catalyst body on the side facing the first radiation heat receiving part decreases due to the heat radiation to the second radiation heat receiving part of the catalyst body, and the temperature of the catalyst body on the side facing the first radiation heat receiving part also decreases due to the heat conduction in the catalyst body.
- the amount of combustion can be further increased. Therefore, a catalytic combustion device with high heat exchange efficiency can be realized more compactly.
- the second catalytic body is provided downstream of the combustion chamber, radiant heat from the second catalytic body can be received by the radiant heat receiving portion, so that the heat exchange efficiency can be further improved as a catalytic combustion device. Can be.
- the catalyst body is placed on the heat exchange section for recovering the sensible heat in the combustion gas generated by the catalyst body, even if condensation water is generated on the heat exchange section under some conditions, the condensation water From the exchange part, it falls down in the exhaust direction and is discharged outside the combustor.
- FIG. 1 is a configuration diagram of a catalytic combustion device e according to a first embodiment of the present invention.
- FIG. 2 is a configuration diagram of a catalytic combustion device according to a second embodiment of the present invention.
- FIG. 3 is a configuration diagram of a catalytic combustion device according to a third embodiment of the present invention.
- FIG. 4 is a configuration diagram of a catalytic combustion device according to a fourth embodiment of the present invention.
- FIG. 5 is a configuration diagram of a catalytic combustion device according to a fifth embodiment of the present invention.
- FIG. 6 is a configuration diagram of a catalytic combustion device according to a sixth embodiment of the present invention.
- FIG. 7 is a configuration diagram of a catalytic combustion device according to a seventh embodiment of the present invention.
- FIG. 8 is a diagram showing another example of the fin attachment state in the catalytic combustion device of the fifth embodiment.
- FIG. 9 is a configuration diagram of a conventional catalytic combustion device.
- a catalytic combustion device will be described with reference to FIG.
- a fuel supply valve 1 for controlling the fuel gas supply amount and an air supply valve 2 for controlling the air supply amount, which are connected to the premixing chamber 3.
- a preheating burner 4 is provided downstream of the premixing chamber 3, and a catalyst body 7 based on a plate-shaped ceramic honeycomb having a large apparent surface area is provided downstream of the premixing chamber 3, and leads to an exhaust port 8. .
- a radiation heat receiving plate 11 At a position facing the upstream surface of the catalyst body 7, a radiation heat receiving plate 11 in which the heat medium flow path 10 is in close contact is provided.
- the fuel gas supplied from the fuel supply valve 1 and the air supplied from the air supply valve 2 are mixed in the premixing chamber 3 and supplied to the preheating parner 4.
- a flame is formed in the preheating parner 4 by the ignition device 5 near the preheating parner 4, and the temperature of the catalyst body 7 is increased by high-temperature exhaust gas generated from the flame.
- the heat medium is allowed to flow through the heat medium flow path 16.
- the temperature of the catalyst 7 becomes active, the supply of the fuel gas is temporarily stopped by the fuel supply valve 1 to extinguish the flame. Immediately thereafter, the fuel gas is supplied by the fuel supply valve 1 to start catalytic combustion by the catalyst 7.
- the heat medium receives a large amount of heat while passing through the heat medium passage 10, and is heated to become a high-temperature heat medium.
- this ripening medium it is possible to heat or heat only specific objects or places.
- a water heater can be realized by directly using a heat medium as water, and it can be used as floor heating by flowing a heat medium through a pipe laid under the floor.
- the upstream surface of the plate-shaped catalytic body 7 is heated to 800 to 850 ° C It is in a high temperature state, and radiates and radiates a large amount from the upstream surface of the catalyst body 7. Since the radiation heat receiving plate 11 is installed at a position facing the upstream side of the catalyst 7, the radiation heat receiving plate 11 receives a large amount of radiation from the catalyst 7. Since the heat medium flow path 10 is in close contact with the radiation heat receiving plate 11 and the heat medium is flowing, the amount of heat received by the radiation heat receiving plate 11 is transferred to the heat medium by heat conduction, and the heat medium rises. Warm up.
- the combustion heat can be transferred to the heat medium without disturbing the combustion state of the catalyst.
- the radiant heat receiving plate 11 of the heat receiving portion has a low temperature. Therefore, the catalyst body 7 radiates and radiates multi-firing combustion heat from the upstream face, and the temperature of the catalyst body 7 upstream face decreases. At the time of catalytic combustion, since the temperature of the upstream part of the catalyst 7 is the highest, the maximum temperature of the catalyst 7 is lowered by a large amount of radiation ripening.
- a catalytic combustion device S according to a second embodiment of the present invention will be described with reference to FIG.
- the catalytic combustion device according to the present embodiment A radiant heat receiving plate 13 in which a heat medium flow path 12 is adhered is also provided at a position facing the downstream surface.
- the downstream surface of the catalyst body 7 is also in a high temperature state. Radiant heat can also be exchanged with the heat medium, and the heat exchange efficiency as a catalytic combustion device can be increased.
- the temperature of the downstream surface of the catalyst 7 is reduced by the heat exchange, and the temperature of the upstream surface of the catalyst 7 is also reduced. Therefore, since the amount of combustion can be further increased, a more compact catalytic combustion device can be realized.
- the heat receiving plates 11 and 13 constitute the wall of the combustion chamber 6, and the heat of combustion in the catalyst 7 is almost completely exchanged with the heat medium. Does not go up. Therefore, there is almost no heat dissipation loss due to natural convection heat transfer or radiation from the walls of the catalytic combustion device, so that the heat exchange efficiency can be increased.
- the catalytic combustion device according to the present embodiment includes a first catalyst body 14 having a plate-shaped ceramic honeycomb as a base and a second catalyst having a plate-shaped ceramic honeycomb as a base downstream of the radiation heat receiving plate 13. Medium 15 is provided.
- the high temperature exhaust gas from the first catalytic body 14 raises the temperature of the second catalytic body 15 to a temperature having catalytic activity. Therefore, some unburned components contained in the combustion gas from the first catalyst body 14 are completely burned by the second catalyst body 15 and are discharged from the exhaust port 8 as exhaust gas containing no unburned components. .
- the upstream surface of the second catalyst body 15 is also in a high temperature state due to the combustion gas from the first catalyst body 14 and the heat of combustion in the second catalyst body 15, and the second catalyst body 15 1 5 upstream Radiation is radiated from the surface.
- the radiation heat receiving plate 13 is provided on the upstream side of the second catalyst body 15, the radiation from the upstream surface of the second catalyst body 15 is received by the radiation heat reception ⁇ 13, Heat exchange with heat carrier.
- a catalytic combustion apparatus S according to a fourth embodiment of the present invention will be described with reference to FIG.
- the catalytic combustion device according to the present embodiment includes a high radiation absorption layer 16 in which a black paint is applied to the inner surface of radiation heat receiving plate 11.
- the radiation coefficient of the black paint is 0.9 to 1.0
- the radiation from the upstream surface of the catalyst 7 is very efficiently received by the high radiation absorption layer 16 and transferred to the radiation heat receiving plate 11. Heat exchange with heat carrier. Therefore, the heat exchange efficiency can be improved.
- the amount of combustion can be increased below the ripening limit temperature, so that the catalytic combustion device can be made compact.
- the high radiation absorbing layer formed on the entire upstream side of 7 can reliably receive heat and exchange heat with the heat medium.
- a new layer having a large radiation coefficient may be formed on the surface of the radiation heat receiving plate 11, such as the above-mentioned black paint coating or plating,
- the radiation coefficient may be increased by forming fine irregularities on the surface of the radiation heat receiving plate using a sample or the like.
- a fin tube type-type ripening exchanger for recovering ripening in the exhaust gas is installed downstream of the catalyst 7 or the second catalyst 15. If the heat medium is flown to recover the exhaust heat, the heat exchange efficiency can be further increased.
- a catalytic combustion device according to a fifth embodiment of the present invention will be described with reference to FIG.
- the catalytic combustion device has a fuel supply valve 1 for controlling a fuel gas supply amount and an air supply valve 2 for controlling an air supply amount, and is connected to a premixing chamber 3. Downstream of the premixing chamber 3 is a preheating parner 4, which leads to a combustion chamber 6.
- a catalyst body 7 having a ceramic honeycomb having a large number of communication holes as a carrier, and a first heat medium flow path at a position opposed to the upstream surface 7a of the catalyst body 7 for water.
- a radiation heat receiving plate 19 provided with a radiation absorbing layer 18 is provided in close contact with the flowing tube 17.
- a copper tube 20 of a second heat medium flow path, to which a number of fins 21 are fixed and connected to the copper tube 17, is provided at the outlet of the combustion chamber 6.
- the outlet of the combustion chamber 6 is connected to an exhaust port 8.
- the fins 21 are provided on the copper tube 20 in a state where the fins 21 are provided at a narrow interval and the exhaust path 22 is provided.
- the fuel gas supplied from the fuel supply valve 1 and the air supplied from the air supply valve 2 are mixed in the premixing chamber 3 and supplied to the preheating burner 4. At this time, flush the copper tubes 17 and 20 with water.
- a flame is formed in the preheating parner 4 by the ignition of the ignition device 5 near the preheating parner 4, and the catalyst 7 is raised by high-temperature exhaust gas generated from the flame.
- the temperature of the catalyst 7 becomes active, the supply of the fuel gas is temporarily stopped by the fuel supply valve 1 to extinguish the flame.
- the fuel By supplying the fuel gas through the supply valve 1, catalytic combustion is started by the catalyst 7.
- the high-temperature exhaust gas discharged from the catalyst body 7 is discharged from the exhaust port 8 through the exhaust path 22.
- Steady upstream face 7 a of the catalytic body 7 at the time of combustion is 8 0 0 ° C ⁇ 8 5 0 ° C
- the downstream surface has a 6 0 0 ° C ⁇ 7 5 0 e C
- the downstream A large amount of radiation is radiated from the surface.
- the fins 13 are provided at sufficiently small intervals, most of the radiation from the downstream surface of the catalyst 7 is directly applied to the fins 21 or the copper tubes 20.
- the fins 21 are generally made of copper, the radiation coefficient is 0.2 to 0.3.
- part of the radiation is transferred to the fins 21 and the copper tubes 20 and exchanges heat with water, but part of the radiation is reflected by the surfaces of the fins 21 and the copper tubes 20 and irradiates the downstream surface of the catalyst 7. Is done.
- the downstream surface of the catalyst body 7 is irradiated, heat conduction to the downstream side in the catalyst body 7 is suppressed, so that the temperature of the entire catalyst body 7 rises. Accordingly, the temperature of the high-temperature surface 7a of the catalyst body 7 becomes even higher, and a large amount of radiation occurs from the upstream surface 7a of the catalyst body 7.
- the fins 21 may be made longer in the bending direction so that almost all radiation from the downstream surface of the catalyst 7 is irradiated to the copper tubes and fins. Further, the fins 21 may be arranged only at positions facing at least both ends of the catalyst body 7. This solves the problem that the temperature of the catalytic body near the catalytic body holder drops as described in the section of the prior art, the catalytic activity decreases locally, and exhaust gas containing unburned components is discharged. To do that.
- the fins 21 are installed in a direction perpendicular to the surface of the catalyst body 7.
- the present invention is not limited to this.
- FIG. A configuration in which 1 is provided radially with respect to the surface of the catalyst 7 may be employed.
- all the fins may be installed diagonally in the same direction.
- the fin 21 may be bent in the middle as shown in FIG.
- a catalytic combustion device according to a sixth embodiment of the present invention will be described with reference to FIG.
- the radiation absorbing layer 23 is provided on the surfaces of the fins 21 and the copper tubes 20 in addition to the configuration of the fifth embodiment.
- the radiation applied to fins 21 and copper tubes 20 from the downstream surface of catalyst body 7 is efficiently absorbed by radiation absorption layer 23 and exchanged with water. Therefore, almost all the radiation from the downstream surface of the catalyst body 7 is absorbed by the fins 21 and the copper tubes 20 and can exchange heat, so that a catalytic combustion device with high heat exchange efficiency can be realized.
- a black paint having a high radiation coefficient may be thinly applied to the surfaces of the fins 21 and the copper tube 20, or the surface state may be roughened by blast treatment or the like to increase the radiation coefficient. Is also good.
- a catalytic combustion device according to a seventh embodiment of the present invention will be described with reference to FIG.
- a radiation heat receiving plate 19 provided with a heat medium flow path 17, and a heating medium can flow downward of the catalyst body 7.
- a fin tube type heat exchanger 24 is installed.
- the catalytic combustion device positively utilizes this fact so that the temperature of the exhaust gas discharged from the exhaust heat exchanger is lower than the dew point temperature in the exhaust heat exchanger.
- the operation of the catalytic combustion device S having the above effects will be described with reference to FIG.
- the combustion gas generated by the catalyst body 7 enters the heat exchanger 24, undergoes heat exchange, and is discharged downward. Even if dew water is generated on the heat exchanger 24, it falls down in the direction of exhausting the combustion gas according to the gravity, which affects the combustion state of the catalyst body 7 above the heat exchanger 24. Absent. Therefore, the heat exchanger 24 actively exchanges heat, and the latent heat of H 20 in the combustion gas can also be exchanged.
- the radiant heat from the upstream surface of the catalyst body is exchanged by the radiant heat receiving plate 19 on the upstream side of the catalyst body 7, heat exchange is performed as a whole of the combustor. ⁇ A very high efficiency catalytic combustion system S can be realized.
- a drain channel for collecting and discharging dew water may be provided below the heat exchanger 24.
- an igniter may be provided downstream of the catalyst (first catalyst) as the ignition means.
- a flame is formed on the downstream surface of the catalyst, and the temperature of the catalyst body is increased by the flame.
- the temperature of the catalyst reaches an active temperature, catalytic combustion starts spontaneously, but at the same time, the flame on the downstream side of the catalyst is supplied with exhaust gas generated by catalytic combustion, and the flame extinguishes. Therefore, if the igniter is installed downstream of the catalyst body, the flame combustion during preheating naturally can be performed without controlling the fuel supply.
- a preheated mixture may be locally heated to a temperature higher than the ignition temperature by using a ceramic heater, or a method may be used in which a igniter is used to spark the catalyst frame or the S wall of the catalyst combustion device. May be used.
- INDUSTRIAL APPLICABILITY As is apparent from the above, the present invention provides a radiant heat receiving plate provided with a heat medium flow path by using a plate-shaped catalyst body to generate a large amount of widthwise radiation heat from the surface of the catalyst body. By receiving heat and exchanging heat with the heat medium, a compact catalytic combustion device S with high heat exchange efficiency can be realized. Furthermore, by irradiating almost all of the radiation from the downstream surface of the catalyst body to the fins and the heat medium flow path, which are the heat exchange sections, it is possible to realize a catalytic combustion apparatus with even higher heat exchange efficiency.
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Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/894,874 US6431856B1 (en) | 1995-12-14 | 1996-12-06 | Catalytic combustion apparatus |
JP52192197A JP3568964B2 (ja) | 1995-12-14 | 1996-12-06 | 触媒燃焼装置 |
EP96941194A EP0807786B1 (en) | 1995-12-14 | 1996-12-06 | Catalytic combustion apparatus |
DE69627313T DE69627313T2 (de) | 1995-12-14 | 1996-12-06 | Katalytische verbrennungsvorrichtung |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7/326100 | 1995-12-14 | ||
JP32610095 | 1995-12-14 | ||
JP9786696 | 1996-04-19 | ||
JP8/97866 | 1996-04-19 |
Publications (1)
Publication Number | Publication Date |
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WO1997021957A1 true WO1997021957A1 (fr) | 1997-06-19 |
Family
ID=26439004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1996/003582 WO1997021957A1 (fr) | 1995-12-14 | 1996-12-06 | Dispositif de combustion catalytique |
Country Status (7)
Country | Link |
---|---|
US (1) | US6431856B1 (ja) |
EP (1) | EP0807786B1 (ja) |
JP (1) | JP3568964B2 (ja) |
KR (1) | KR100452835B1 (ja) |
CN (1) | CN1105869C (ja) |
DE (1) | DE69627313T2 (ja) |
WO (1) | WO1997021957A1 (ja) |
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US6386862B1 (en) * | 1999-03-16 | 2002-05-14 | Matsushita Electric Industrial Co., Ltd. | Catalytic combustion apparatus |
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- 1996-12-06 KR KR1019970705586A patent/KR100452835B1/ko not_active IP Right Cessation
- 1996-12-06 DE DE69627313T patent/DE69627313T2/de not_active Expired - Lifetime
- 1996-12-06 US US08/894,874 patent/US6431856B1/en not_active Expired - Lifetime
- 1996-12-06 JP JP52192197A patent/JP3568964B2/ja not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
EP0807786B1 (en) | 2003-04-09 |
KR100452835B1 (ko) | 2004-12-17 |
DE69627313T2 (de) | 2004-02-12 |
EP0807786A4 (en) | 1999-08-04 |
JP3568964B2 (ja) | 2004-09-22 |
US6431856B1 (en) | 2002-08-13 |
CN1105869C (zh) | 2003-04-16 |
CN1173919A (zh) | 1998-02-18 |
EP0807786A1 (en) | 1997-11-19 |
DE69627313D1 (de) | 2003-05-15 |
KR19980702191A (ko) | 1998-07-15 |
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