WO2011111778A1 - Échangeur de chaleur de gaz d'échappement de moteur contenant un catalyseur et dispositif d'alimentation en énergie l'utilisant - Google Patents

Échangeur de chaleur de gaz d'échappement de moteur contenant un catalyseur et dispositif d'alimentation en énergie l'utilisant Download PDF

Info

Publication number
WO2011111778A1
WO2011111778A1 PCT/JP2011/055640 JP2011055640W WO2011111778A1 WO 2011111778 A1 WO2011111778 A1 WO 2011111778A1 JP 2011055640 W JP2011055640 W JP 2011055640W WO 2011111778 A1 WO2011111778 A1 WO 2011111778A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
catalyst
heat exchanger
engine exhaust
pipe
Prior art date
Application number
PCT/JP2011/055640
Other languages
English (en)
Japanese (ja)
Inventor
洋志 東
航典 松浦
Original Assignee
ヤンマー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ヤンマー株式会社 filed Critical ヤンマー株式会社
Publication of WO2011111778A1 publication Critical patent/WO2011111778A1/fr

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F01N3/2889—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with heat exchangers in a single housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy
    • F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy the devices using heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/103—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/02—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by influencing fluid boundary
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/08—Exhaust treating devices having provisions not otherwise provided for for preventing heat loss or temperature drop, using other means than layers of heat-insulating material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/18—Structure or shape of gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
    • F28F2009/226—Transversal partitions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to a catalyst built-in engine exhaust gas heat exchanger used in an engine-driven air conditioner, a cogeneration system, or the like.
  • the exhaust gas flowing into the front chamber is surrounded by the partition walls forming the cooling water passage, and therefore passes through this cooling water passage before flowing into the catalyst. Heat is absorbed by the cooling water. Therefore, the exhaust gas has a temperature that flows into the catalyst, and the reaction with the catalyst may become inactive.
  • an object of the present invention is to provide a configuration capable of preventing exhaust gas drift on the catalyst inflow surface when exhaust gas is allowed to flow from the radial direction of the catalyst.
  • An engine exhaust gas heat exchanger with a built-in catalyst according to the present invention for solving the above-mentioned problem is a heat exchanger between an exhaust gas and cooling water of an engine, and has a catalyst built-in engine with a built-in exhaust gas purification catalyst.
  • the exhaust gas heat exchanger all or part of the partition wall of the catalyst inflow portion is constituted by a multilayer plate. Further, in the engine built-in engine exhaust gas heat exchanger, the inner plate and the outer plate of the multilayer plate are separated from each other.
  • the catalyst exhaust side heat exchanger Furthermore, in the heat exchanger between the engine exhaust gas and the cooling water, the exhaust gas flowing in from the radial direction of the built-in exhaust gas purification catalyst, the catalyst exhaust side heat exchanger
  • the peripheral wall carrying the catalyst is extended, or a separate peripheral wall is provided, and a plurality of exhaust gas inlets are provided in the circumferential direction of the peripheral wall except for the facing portion with the exhaust gas inlet.
  • the energy supply device of the present invention for solving the above-mentioned problems uses the above-described catalyst-integrated engine exhaust gas heat exchanger as an engine exhaust gas path in an energy supply device such as an engine-driven heat pump and cogeneration. Is.
  • the present invention since the amount of heat absorbed by the cooling water before the exhaust gas flows into the catalyst can be suppressed, the temperature of the exhaust gas is prevented from decreasing and the reaction at the catalyst is activated. it can.
  • FIG. 1 is sectional drawing of the engine exhaust gas heat exchanger with a built-in catalyst based on this invention
  • FIG. 2 is a circuit diagram of a cooling water circuit of an engine provided with a catalyst built-in engine exhaust gas heat exchanger shown in FIG. 1.
  • A) is the II-II sectional view taken on the line of Drawing 1 (a)
  • (b) is the partial expanded sectional view of an anterior chamber.
  • A) is sectional drawing which shows other embodiment of the front chamber of the engine exhaust gas heat exchanger with a built-in catalyst based on this invention
  • (b) is the III-III sectional view taken on the line of FIG.
  • FIG. 1 shows an engine exhaust gas heat exchanger 1 with a built-in catalyst according to the present invention
  • FIG. 2 shows an example of a cooling water circuit diagram of a gas engine 11 provided with the engine exhaust gas heat exchanger 1 with a built-in catalyst
  • FIG. 3 shows the configuration of the front chamber 2 of the engine exhaust gas heat exchanger 1 with the built-in catalyst.
  • the front chamber 2 before the exhaust gas in the heat exchanger 3 flows into the exhaust gas purification catalyst (hereinafter simply referred to as catalyst) 4 is the heat exchanger.
  • the gap S is provided between the three inner cylinder pipes 31.
  • the catalyst built-in type engine exhaust gas heat exchanger 1 is configured such that the exhaust from the engine 11 to the silencer 12 flows into the front chamber 2, the catalyst 4,
  • the cooling water of the engine 11 is provided so as to pass through the unit exhaust gas passages 5a, 5b, 5c, and is introduced into the engine 11 after passing through the heat exchanger 3 of the catalyst exhaust type engine exhaust gas heat exchanger 1. It is provided to do.
  • the cooling water after passing through the engine 11 is configured to circulate by a pump 13. Further, the temperature of the cooling water can be controlled by the thermostat 14, and the flow can be switched to the radiator 16 or the heat exchanger 17 by the three-way valve 15.
  • the heat exchanger 3 includes an inner cylinder pipe 31, an outer cylinder pipe 32, inner lids 31a and 31b and outer lids 32a and 32b provided at both ends thereof, and the gap is formed between cooling water through which cooling water passes.
  • a passage 30 is formed.
  • a cooling water inflow pipe 33 communicating with the cooling water passage 30 is provided at the outer lid 32 b at the other end, and the outer cylinder pipe 32 at one end communicates with the cooling water passage 30.
  • a cooling water outflow pipe 34 is provided. As a result, the cooling water is introduced from the cooling water inflow pipe 33 into the cooling water passage 30, flows from the other end side to the one end side of the heat exchanger 3, and then drained from the cooling water outflow pipe 34. It is made like that.
  • the heat exchanger 3 is provided with an exhaust gas inflow pipe 35 that passes through the inner cylindrical pipe 31 and the outer cylindrical pipe 32 at one end and communicates with the inner cylindrical pipe 31, and the inner cylindrical pipe at the other end.
  • An exhaust gas outflow pipe 36 that penetrates the outer cylinder pipe 31 and the outer cylinder pipe 32 and communicates with the inner cylinder pipe 31 is provided.
  • the exhaust gas is introduced from the exhaust gas inflow pipe 35 into the inner cylinder pipe 31, and the front chamber 2, the catalyst 4 and the three-stage unit exhaust gas passages 5a and 5b formed in the inner cylinder pipe 31.
  • the exhaust gas outlet pipe 36 is configured to exhaust the gas.
  • the front chamber 2 includes a tubular member 21 formed in the inner tube 31 so as to be gradually reduced in diameter while forming a curved surface with a slightly smaller diameter than the inner tube 31. 31 is provided so as to form an air gap S.
  • One end on the reduced diameter side of the tube material 21 is fixed to an inner lid 31 a provided at one end of the heat exchanger 3.
  • the exhaust gas inflow pipe 35 communicates with the inside of the pipe material 21.
  • the other end of the pipe member 21 is provided with a cylindrical connection member 22 for receiving and connecting the catalyst 4 and the exhaust gas ejection pipe 51.
  • the connecting member 22 is further reduced in diameter from the cylindrical main body 22a portion in contact with the inner peripheral surface of the inner cylindrical pipe 31 to form an exhaust gas ejection pipe connecting portion 22b and a catalyst connecting portion 22c.
  • the portion of the main body 22a having the maximum diameter is interposed between the inner cylinder pipe 31 and the pipe material 21, and is fixed so as to maintain a gap S between the inner cylinder pipe 31 and the pipe material 21.
  • the exhaust gas ejection pipe connecting portion 22b is configured to receive and connect the exhaust gas ejection pipe 51 to the outside thereof so as to form a gap d between the inner cylinder pipe 31 and the exhaust gas ejection pipe 51.
  • the catalyst connecting portion 22c is configured to receive and connect the catalyst 4 inside thereof.
  • the unit exhaust gas passage 5 a is configured by an exhaust gas ejection pipe 51 connected to the exhaust gas ejection pipe connection portion 22 b of the connection member 22 and a connection member 52 provided on the downstream side of the exhaust gas ejection pipe 51. Yes.
  • the exhaust gas ejection pipe 51 is formed in a cylindrical shape having a diameter and a length capable of forming the gap d between the inner cylinder pipe 31 and the interior of the catalyst 4.
  • a plurality of nozzle holes 50 are provided in the circumferential wall of the exhaust gas ejection pipe 51 at equal intervals along the longitudinal direction and the circumferential direction. Further, the exhaust gas ejection pipe 51 is closed at the downstream end by a lid 51a.
  • the exhaust gas ejection pipe 51 is fixed in the inner cylinder pipe 31 by a rib piece 51b that is appropriately provided at a position that does not obstruct the nozzle hole 50 with the inner peripheral surface of the inner cylinder pipe 31.
  • the rib piece 51b is also provided on the inner peripheral surface of the exhaust gas ejection pipe 51 so that the catalyst 4 built in the exhaust gas ejection pipe 51 can be held.
  • a thermometer is passed between the catalyst 4 and the lid 51a through the outer cylinder pipe 32 and the inner cylinder pipe 31 of the heat exchanger 3 and the exhaust gas ejection pipe 51. 6 is provided.
  • the catalyst 4 is desirably temperature-controlled because the purification action may not function effectively depending on the exhaust gas temperature, but the temperature of the catalyst 4 is measured by the thermometer 6 at a position immediately after passing through the catalyst 4. The purification state can be grasped to some extent.
  • the connecting member 52 is further reduced in diameter from the cylindrical main body 52a portion to form an exhaust gas ejection pipe connecting portion 52b.
  • the portion of the main body 52 a having the maximum diameter is fixed to the inner peripheral surface of the inner tube 31 on the downstream side adjacent to the exhaust gas ejection pipe 51.
  • the exhaust gas ejection pipe connecting portion 52b is connected to the exhaust gas ejection pipe 53 constituting the unit exhaust gas passage 5b of the next stage on the outside thereof, and is spaced between the inner cylinder pipe 31 and the exhaust gas ejection pipe 53. d is formed.
  • the unit exhaust gas passage 5a has the first exhaust gas passage A in which the exhaust gas that has passed through the catalyst is stopped by the lid 51a and ejected from the nozzle hole 50, and after being ejected from the nozzle hole 50, A second exhaust gas passage B is formed which passes through the gap d between the exhaust gas ejection pipe 51 and the inner cylinder pipe 31 and allows the exhaust gas to pass from the ejection pipe connection portion 52b of the connection member 52 to the ejection pipe 53 of the next stage. Will be.
  • the unit exhaust gas passage 5 b is configured by an exhaust gas ejection pipe 53 connected to the exhaust gas ejection pipe connection portion 52 b of the connection member 52 and a connection member 54 provided on the downstream side of the exhaust gas ejection pipe 53. Yes.
  • the exhaust gas ejection pipe 53 is formed in a cylindrical shape capable of forming a gap d with the inner cylinder pipe 31.
  • a plurality of nozzle holes 50 are provided in the circumferential wall of the exhaust gas ejection pipe 53 at equal intervals along the longitudinal direction and the circumferential direction. Further, the exhaust gas ejection pipe 53 is closed at the downstream end by a lid 53a.
  • the exhaust gas ejection pipe 53 is fixed in the inner cylinder pipe 31 by a rib piece 53b provided at the position of the outer peripheral surface of the downstream end that does not interfere with the nozzle hole 50 between the exhaust gas ejection pipe 53 and the inner circumference surface of the inner cylinder pipe 31.
  • the connecting member 54 is further reduced in diameter from the cylindrical main body 54a portion to form an exhaust gas ejection pipe connecting portion 54b.
  • the portion of the main body 54 a having the maximum diameter is fixed to the inner peripheral surface of the inner tube 31 on the downstream side adjacent to the exhaust gas ejection tube 53.
  • the exhaust gas ejection pipe connecting portion 54b is connected to the outside thereof by receiving and connecting an exhaust gas ejection pipe 55 constituting the unit exhaust gas passage 5c of the next stage, and is spaced between the inner tube 31 and the exhaust gas ejection pipe 55. d is formed.
  • the unit exhaust gas passage 5b includes the first exhaust gas passage A configured such that the exhaust gas that has passed through the ejection pipe connection portion 52b of the connection member 52 is stopped by the lid 53a and is ejected from the nozzle hole 50.
  • the second gas passes through the gap d between the exhaust gas ejection pipe 53 and the inner cylinder pipe 31, and passes the exhaust gas from the ejection pipe connection portion 54 b of the connection member 54 to the ejection pipe 55 of the next stage.
  • the exhaust gas passage B is formed.
  • the unit exhaust gas passage 5c includes an exhaust gas ejection pipe 55 connected to the exhaust gas ejection pipe connection portion 54b of the connection member 54 and an exhaust gas outflow pipe 36.
  • the exhaust gas ejection pipe 55 is formed in a cylindrical shape capable of forming a gap d with the inner cylinder pipe 31.
  • a plurality of nozzle holes 50 are provided in the circumferential wall of the exhaust gas ejection pipe 55 at equal intervals along the longitudinal direction and the circumferential direction. Further, the length of the exhaust gas ejection pipe 55 is adjusted so that the downstream end is closed by the inner lid 31 b on the other end side of the heat exchanger 3. The downstream end portion of the exhaust gas ejection pipe 55 is fixed to the inner lid 31 b on the other end side of the heat exchanger 3.
  • the unit exhaust gas passage 5c includes the first exhaust gas passage A configured such that the exhaust gas that has passed through the ejection pipe connection portion 54b of the connection member 54 stops at the inner lid 31b and is ejected from the nozzle hole 50. After ejection from the nozzle hole 50, a second exhaust gas passage B that passes through the gap d between the exhaust gas ejection pipe 53 and the inner cylinder pipe 31 and is exhausted from the exhaust gas outflow pipe 36 is formed.
  • exhaust gas from the engine passes through the exhaust gas inflow pipe 35, the front chamber 2, the catalyst 4, and the unit exhaust gas passages 5a, 5b, and 5c, and the exhaust gas.
  • the air is exhausted from the outflow pipe 36.
  • the exhaust gas is not ejected all at once from the nozzle holes 50, but is ejected from the nozzle holes 50 of the unit exhaust gas passage 5a and then recovered, and the nozzle holes of the next unit exhaust gas passage 5b are collected. After being ejected from the nozzle 50, it is recovered again and ejected from the nozzle hole 50 of the unit exhaust gas passage 5c at the next stage, so that it is ejected from the nozzle hole 50 toward the inner tube 31 of the heat exchanger 3.
  • the exhaust gas injection speed can be kept constant without being lowered in each unit exhaust gas passage 5a, 5b, 5c. Therefore, it is possible to prevent a decrease in the flow velocity per nozzle hole 50 and maintain a predetermined average heat passage rate (K value).
  • the front chamber 2 forms a gap S between the pipe material 21 and the inner cylinder pipe 31, the exhaust gas flowing in from the exhaust gas inflow pipe 35 is cooled by the cooling water via the inner cylinder pipe 31. Can be prevented. Therefore, it is possible to prevent the temperature of the exhaust gas before flowing into the catalyst 4 from decreasing and activate the reaction at the catalyst 4.
  • a gap S is formed between the pipe material 21 and the inner cylindrical pipe 31, but the position where the exhaust gas flowing into the front chamber 2 from the exhaust gas inflow pipe 35 collides, that is, Since the exhaust gas is positively sprayed to the position of the pipe member 21 on the extension line from the exhaust gas inflow pipe 35, the above-described gap S may be formed only at this position.
  • a gap S is formed between the pipe material 21 constituting the front chamber 2 and the inner cylindrical pipe 31, and this gap S is a gap between the pipe material 21 and the inner cylindrical pipe 31.
  • a portion of the main body 22a of the connection member 22 provided to maintain S is extended and the main body 22a is mounted, that is, a three-layer structure of the inner tube 31, the main body 22a, and the pipe material 21. It may be.
  • a suitable heat insulating material may be provided in the gap S.
  • the gap S is formed between the tube material 21 constituting the front chamber 2 and the inner cylinder pipe 31, but the gap S between the tube material 21 and the inner cylinder pipe 31 is maintained.
  • a multilayer board having a two-layer structure in which the tube material 21 and the inner tube 31 are directly in close contact with each other without the connection member 22 provided therebetween may be used. In this case, there is no gap S, but it is possible to prevent contact thermal resistance from being generated at the joint between the tube material 21 and the inner tube 31 and being cooled by the cooling water.
  • the exhaust gas from the exhaust gas inflow pipe 35 is positively blown to the position of the pipe member 21 on the extension line of the exhaust gas inflow pipe 35 and drifts in the front chamber 2.
  • a rectifying member 23 for preventing the drift of the exhaust gas flowing into the catalyst 4 may be provided in the front chamber 2.
  • the rectifying member 23 is formed in a cylindrical shape that connects the inner lid 31a on one end side of the heat exchanger 3 and the catalyst 4, and the exhaust gas inlets 23a are provided at a plurality of locations at equal intervals on the entire outer periphery. Is provided.
  • the exhaust gas inlet 23 a is provided so as to be disengaged from the position of the rectifying member 23 that hits the extended line of the exhaust gas inflow pipe 35.
  • the same members as those in FIGS. 1 to 3 are denoted by the same reference numerals, and the description thereof is omitted.
  • the exhaust gas flowing into the front chamber 2 can be circulated around the rectifying member 23 and then flowed into the catalyst 4 through the exhaust gas inlet 23a.
  • the drift in 2 can be prevented.
  • the rectifying member 23 may be configured such that the catalyst connecting portion 22c of the connecting member 22 extends toward the rectifying member 23 and the connecting member 22 and the rectifying member 23 are integrated. .
  • the present invention can be used as an exhaust gas heat exchanger for various engines used in air conditioners and cogeneration systems.
  • Engine exhaust gas heat exchanger with built-in catalyst 11
  • Engine 2 Front chamber (catalyst inlet) 21
  • Tube material (multilayer board) 22a body (multilayer board) 23
  • Rectification member (surrounding wall) 23a
  • Exhaust gas inlet 3 Heat exchanger 31
  • Inner tube (multilayer plate) 35 Gas inflow pipe 4

Abstract

L'échangeur de chaleur de gaz d'échappement de moteur contenant un catalyseur selon l'invention, qui échange de la chaleur entre les gaz d'échappement d'un moteur et de l'eau de refroidissement, contient un catalyseur de purification de gaz d'échappement interne. La configuration dudit échangeur de chaleur de gaz d'échappement de moteur contenant un catalyseur permet d'éviter des pertes de chaleur au niveau d'une section d'entrée de gaz d'échappement. De plus, lorsque l'on fait rentrer les gaz d'échappement dans la direction radiale du catalyseur, la configuration selon l'invention permet d'éviter que les gaz d'échappement ne soient déviés au niveau de la surface d'entrée du catalyseur. Dans l'échangeur (1) de chaleur de gaz d'échappement de moteur contenant un catalyseur selon l'invention, qui contient un catalyseur (4) de purification de gaz d'échappement interne et sert d'échangeur (3) de chaleur qui échange de la chaleur entre les gaz d'échappement d'un moteur et de l'eau de refroidissement, une partie ou la totalité d'une paroi de séparation pour une chambre (2) avant est une plaque multicouche. Un espace (S) est prévu entre un matériau (21) de tube et un tube (31) interne qui constituent la plaque multicouche. La chambre (2) avant est munie d'un élément (23) de redressement d'écoulement et, mis à part la partie de ce dernier qui fait face à un tube (35) d'entrée de gaz d'échappement, ledit élément de redressement d'écoulement est muni d'une pluralité d'orifices (23a) d'entrée de gaz d'échappement dans la direction circonférentielle. L'invention concerne également un dispositif d'alimentation en énergie qui utilise l'échangeur (1) de chaleur de gaz d'échappement de moteur contenant un catalyseur dans le canal de gaz d'échappement d'un moteur.
PCT/JP2011/055640 2010-03-12 2011-03-10 Échangeur de chaleur de gaz d'échappement de moteur contenant un catalyseur et dispositif d'alimentation en énergie l'utilisant WO2011111778A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-055574 2010-03-12
JP2010055574A JP2011190707A (ja) 2010-03-12 2010-03-12 触媒内蔵型エンジン排気ガス熱交換器ならびにこれを使用したエネルギー供給装置

Publications (1)

Publication Number Publication Date
WO2011111778A1 true WO2011111778A1 (fr) 2011-09-15

Family

ID=44563576

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/055640 WO2011111778A1 (fr) 2010-03-12 2011-03-10 Échangeur de chaleur de gaz d'échappement de moteur contenant un catalyseur et dispositif d'alimentation en énergie l'utilisant

Country Status (2)

Country Link
JP (1) JP2011190707A (fr)
WO (1) WO2011111778A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013164085A1 (fr) * 2012-05-01 2013-11-07 Benteler Automobiltechnik Gmbh Tube d'échangeur thermique à double paroi

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113250795B (zh) * 2021-06-28 2021-11-26 宁波明讯实业有限公司 一种环保型汽车尾气处理系统及处理办法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5940544U (ja) * 1982-08-31 1984-03-15 小型ガス冷房技術研究組合 水冷エンジンの排熱回収装置
JP2003193831A (ja) * 2001-12-26 2003-07-09 Sanyo Electric Co Ltd 空気調和装置
JP2007315308A (ja) * 2006-05-26 2007-12-06 Hino Motors Ltd 排出ガス浄化装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5940544U (ja) * 1982-08-31 1984-03-15 小型ガス冷房技術研究組合 水冷エンジンの排熱回収装置
JP2003193831A (ja) * 2001-12-26 2003-07-09 Sanyo Electric Co Ltd 空気調和装置
JP2007315308A (ja) * 2006-05-26 2007-12-06 Hino Motors Ltd 排出ガス浄化装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013164085A1 (fr) * 2012-05-01 2013-11-07 Benteler Automobiltechnik Gmbh Tube d'échangeur thermique à double paroi
US9897387B2 (en) 2012-05-01 2018-02-20 Benteler Automobiltechnik Gmbh Heat exchanger with double-walled tubes

Also Published As

Publication number Publication date
JP2011190707A (ja) 2011-09-29

Similar Documents

Publication Publication Date Title
US8397863B2 (en) Muffler with a built-in heat exchanger
KR20100066501A (ko) 엔진 배기 가스 열 회수기 및 그것을 사용한 에너지 공급 장치
US7562741B2 (en) Rear muffler assembly
JP5001752B2 (ja) Ｅｇｒクーラバイパス切替システム
US8708095B2 (en) Exhaust system
JP2008069750A (ja) 排気熱回収装置
JP2008504482A (ja) 消音器／熱交換器複合装置
US20110108254A1 (en) Heat exchanger
WO2011111776A1 (fr) Échangeur de chaleur de gaz d'échappement de moteur et dispositif d'alimentation en énergie l'utilisant
JP4324219B2 (ja) エンジン排気ガス熱回収器ならびにこれを使用したエネルギー供給装置
JP2007247555A (ja) 排気熱回収装置
WO2011111778A1 (fr) Échangeur de chaleur de gaz d'échappement de moteur contenant un catalyseur et dispositif d'alimentation en énergie l'utilisant
JP4582042B2 (ja) 消音機能付き排気熱回収装置
JP4324216B2 (ja) エンジン排気ガス熱回収器ならびにそれを使用したエンジン駆動式ヒートポンプまたはコージェネレーション
US9938871B2 (en) Connection pipe for connecting an active muffler to an exhaust system for an internal combustion engine
JP4194595B2 (ja) 多管式熱交換器
US8162103B2 (en) Silencer for motor vehicle exhaust line
JPH1113549A (ja) Ｅｇｒクーラ
JP2007247554A (ja) 排気熱回収装置
US20090047849A1 (en) Marine engine exhaust system with cooling arrangement
JPH1113550A (ja) Ｅｇｒクーラ
JP5551476B2 (ja) エンジン排気ガス熱交換器ならびにこれを使用したエネルギー供給装置
JP6669440B2 (ja) 翼の冷却回路の供給ダクト、排出ダクト、および関連冷却構造
JP2011190708A (ja) エンジン排気ガス熱交換器およびこれを使用したエネルギー供給装置
KR102593506B1 (ko) 가스 터빈 장치의 케이스 구조체

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11753436

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11753436

Country of ref document: EP

Kind code of ref document: A1