WO2015114949A1 - 排気熱回収器 - Google Patents
排気熱回収器 Download PDFInfo
- Publication number
- WO2015114949A1 WO2015114949A1 PCT/JP2014/082252 JP2014082252W WO2015114949A1 WO 2015114949 A1 WO2015114949 A1 WO 2015114949A1 JP 2014082252 W JP2014082252 W JP 2014082252W WO 2015114949 A1 WO2015114949 A1 WO 2015114949A1
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- WO
- WIPO (PCT)
- Prior art keywords
- heat medium
- exhaust
- heat
- heat recovery
- flow path
- Prior art date
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- 238000011084 recovery Methods 0.000 title claims abstract description 297
- 239000002918 waste heat Substances 0.000 title abstract 2
- 239000000463 material Substances 0.000 claims abstract description 143
- 230000001629 suppression Effects 0.000 claims abstract description 25
- 238000011144 upstream manufacturing Methods 0.000 claims description 41
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract 4
- 238000012986 modification Methods 0.000 description 11
- 230000004048 modification Effects 0.000 description 11
- 239000013598 vector Substances 0.000 description 9
- 230000007423 decrease Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011232 storage material Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- 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
- 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 by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by 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
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
-
- 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
- F28D7/005—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 for only one medium being tubes having bent portions or being assembled from bent tubes or being tubes having a toroidal configuration
-
- 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
- F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
-
- 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
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
-
- 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
- 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
- F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/0246—Arrangements for connecting header boxes with flow lines
- F28F9/0256—Arrangements for coupling connectors with flow lines
-
- 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
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
-
- 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 an exhaust heat recovery unit that recovers heat from exhaust using a heat medium, and relates to an apparatus that recovers the heat of exhaust of an automobile or the like.
- Patent Document 1 discloses an exhaust heat recovery device that discards exhaust as it is by flowing exhaust through a bypass.
- a heat recovery material is provided inside a cylindrical exhaust pipe, an annular heat medium flow path is provided outside the exhaust pipe, and high-temperature exhaust gas flowing through the exhaust pipe (for example, an automobile engine)
- the heat of the exhaust gas is recovered by a heat medium such as water flowing through the heat medium flow path through the heat recovery material.
- the heat medium is supplied to the heat medium flow path from the heat medium supply pipe extending from one side of the annular heat medium flow path, and the other of the annular heat medium flow paths is provided.
- the heat medium in the heat medium flow path is recovered from the heat medium recovery pipe extending from the side.
- the heat medium flow path has a double circular shape.
- the annular part between the small circle inside the double circle and the large circle outside the double circle is the heat medium flow path, so that the exhaust flows inside the small circle of the double circle. Yes.
- the heat medium supply pipe extends, for example, from the right end of the great circle outside the double circle to the right.
- the heat medium recovery pipe extends, for example, from the left end of the great circle outside the double circle to the left.
- the central axis of the heat medium supply pipe and the central axis of the heat medium recovery pipe coincide with each other and are orthogonal to the central axis of the exhaust pipe.
- the heat medium supplied from the heat medium supply pipe to the heat medium flow path is dispersed in two directions and flows through the heat medium flow path. That is, the heat medium supplied from the heat medium supply pipe at the right end of the great circle to the heat medium flow path is divided into a semicircular arc heat medium flow path above the heat medium flow path and a lower half of the heat medium flow path. It flows through the arc-shaped heat medium flow path to the heat medium recovery pipe at the left end of the great circle.
- the heat medium supplied to the heat medium flow path from the heat medium supply pipe immediately hits the exhaust pipe (that is, hits a small circle) and is dispersed in two directions. And when it hits an exhaust pipe, the flow of a heat medium will be disturbed and the efficiency of heat recovery will deteriorate.
- the present invention provides an exhaust heat recovery unit that recovers heat from exhaust using a heat medium, and that provides an exhaust heat recovery unit that can prevent a decrease in heat recovery efficiency or increase the heat recovery efficiency. Objective.
- the present invention also provides an exhaust heat recovery system that suppresses the disturbance of the flow of the heat medium by flowing the heat medium supplied to the heat medium flow path from the heat medium supply pipe to one side, thereby improving the heat recovery efficiency.
- the purpose is to provide a vessel.
- An exhaust heat recovery device includes an exhaust pipe through which exhaust flows, a heat recovery material provided in the exhaust pipe for recovering heat of the exhaust, and a heat medium for recovering heat recovered by the heat recovery material A heat medium flow path through which the exhaust gas flows, and an exhaust suppression unit that is provided in the exhaust pipe and allows the exhaust to pass through only a part of the heat recovery material.
- the exhaust suppression unit may be provided on the upstream side of the heat recovery material in the flow direction of the exhaust gas, and may have a cylindrical shape whose inner diameter is smaller than the outer diameter of the heat recovery material.
- the exhaust pipe includes a cylindrical heat recovery material support, and the heat recovery material is provided in an intermediate portion of the heat recovery material support inside the heat recovery material support, and the exhaust suppression unit May include a reduced diameter portion that has entered the heat recovery material support.
- the reduced diameter portion may have a tapered shape having an inner diameter that is smaller on the heat recovery material side.
- the reduced diameter portion may have a cylindrical shape in which an inner diameter and an outer diameter are constant and smaller than the outer diameter of the heat recovery material.
- the exhaust suppression unit may include a ring-shaped member adjacent to the recovery member on the upstream side in the exhaust flow direction.
- the exhaust suppression part may be a plurality of exhaust passages provided only on the center side of the heat recovery material.
- the exhaust suppression unit may suppress the flow of the exhaust in the vicinity of the heat medium flow path of the heat recovery material.
- the exhaust heat recovery device is connected to the heat medium flow path and has a heat medium supply pipe having a heat medium supply port for supplying the heat medium flow path to the heat medium flow path, and is connected to the heat medium flow path.
- a heat medium recovery pipe having a heat medium recovery port for recovering the heat medium in the heat medium flow path provided near the heat medium supply port may be further provided.
- the heat medium flow path may have an annular shape and be provided outside the heat recovery material.
- a heat medium that recovers heat recovered by the heat recovery material may flow along an outer periphery of the heat recovery material. Almost all of the heat medium supplied from the heat medium supply port may flow to a long path that is a detour route from the heat medium supply port to the heat medium recovery port.
- the exhaust heat recovery device is connected to the heat medium flow path, and when viewed from the extending direction of the central axis of the exhaust pipe, the extension line of the central axis is separated from the central axis of the exhaust pipe by a predetermined distance.
- a heat medium supply pipe having a heat medium supply port for supplying a heat medium to the heat medium flow path, and connected to the heat medium flow path and near the heat medium supply port
- a heat medium recovery pipe provided with a heat medium recovery port for recovering a heat medium flowing through a long path that is a detour path from the heat medium supply port to the heat medium recovery port.
- the heat medium flow path may have an annular shape and be provided outside the heat recovery material. In the heat medium flow path, a heat medium that recovers heat recovered by the heat recovery material may flow along an outer periphery of the heat recovery material.
- the longitudinal extension of the heat medium supply pipe is separated from the central axis of the exhaust pipe by the same extent as the radius of the heat medium flow path. Also good.
- An end of the heat medium supply pipe on the heat medium supply port side protrudes into an annular shape of the heat medium flow path, and an end of the heat medium supply pipe on the heat medium supply port side is the heat medium. It may be slightly separated from the annular inner peripheral wall of the flow path.
- the end surface of the heat medium supply pipe on the heat medium supply port side may be an inclined surface facing the opposite side to the heat medium recovery port.
- the ring-shaped outer member of the heat medium flow path may include an engaging portion that engages with an engaged portion provided at an end of the heat medium supply pipe on the heat medium supply port side.
- the heat medium supply pipe may be positioned by engaging the engaged part and the engagement part by installing the heat medium supply pipe on the outer member.
- the flow of the heat medium supplied from the heat medium supply pipe to the heat medium flow path is caused to flow to one side, thereby suppressing the disturbance of the flow of the heat medium and increasing the heat recovery efficiency.
- FIG. 1 is a cross-sectional view showing a schematic configuration of an exhaust heat recovery device according to the first embodiment of the present invention.
- FIG. 2 is a view showing a II-II section in FIG.
- FIG. 3 is a view showing a III-III cross section in FIG.
- FIG. 4 is a cross-sectional view illustrating a schematic configuration of an exhaust heat recovery device according to a modification of the first embodiment.
- FIG. 5 is a cross-sectional view illustrating a schematic configuration of an exhaust heat recovery device according to a modification of the first embodiment.
- FIG. 6 is a cross-sectional view showing a schematic configuration of an exhaust heat recovery device according to a modification of the first embodiment.
- FIG. 7 is a cross-sectional view showing a schematic configuration of an exhaust heat recovery device according to the second embodiment of the present invention.
- FIG. 8 is a view showing a VIII-VIII cross section in FIG.
- FIG. 9 is a view showing a IX-IX cross section in FIG.
- FIG. 10 is a diagram illustrating a schematic configuration of an exhaust heat recovery device according to a modification of the second embodiment, and corresponds to FIG. 8.
- the exhaust heat recovery device 1 recovers the heat of, for example, automobile exhaust (exhaust gas).
- the exhaust heat recovery device 1 includes an exhaust pipe 3, a heat recovery material (heat storage material) 5, a heat medium flow path (liquid heat medium flow path) 7, and an exhaust suppression unit (exhaust cutoff unit). 9).
- exhaust flows as shown by arrows in FIG.
- a plurality of exhaust passages 11 are provided in the heat recovery material 5.
- the heat recovery material 5 is installed inside the exhaust pipe 3 so that the outer periphery is in contact with the inner wall of the exhaust pipe 3, and recovers the heat of the exhaust gas flowing through the exhaust passage 11.
- the heat recovery material 5 is provided at an intermediate portion in the exhaust pipe 3 in the flow direction of the exhaust gas in the exhaust pipe 3 (the extending direction of the central axis of the exhaust pipe 3; the left-right direction in FIG. 1).
- the entire outer periphery of the heat recovery material 5 is in contact with the inner peripheral surface of the exhaust pipe 3. All of the exhaust gas flows through the exhaust pipe 3 through the exhaust passage 11 of the heat recovery material 5.
- the exhaust passage 11 is constituted by a through hole.
- the through hole extends in the extending direction of the central axis of the exhaust pipe 3.
- the through-holes are located inside the exhaust pipe 3 positioned upstream of the heat recovery material 5 in the exhaust flow direction and the exhaust pipe 3 positioned downstream of the heat recovery material 5 in the exhaust flow direction. Are connected to each other. When viewed from the extending direction of the central axis of the exhaust pipe 3, the respective through holes are almost evenly distributed so that the heat recovered by the heat recovery material 5 is transmitted to the exhaust pipe 3.
- the heat medium flow path 7 is provided outside the outer periphery of the heat recovery material 5 (outside the outer periphery of the exhaust pipe 3).
- a heat medium liquid heat medium such as water or oil
- recovers the heat recovered by the heat recovery material 5 flows through the heat medium flow path 7.
- the heat medium flow path 7 is formed in an annular shape, and when viewed from the extending direction of the central axis of the exhaust pipe 3, as shown in FIG. 2, the heat recovery material 5 is outside the heat recovery material 5 and the exhaust pipe 3. Is provided so as to surround. A heat medium that recovers the heat recovered by the heat recovery material 5 and transmitted through the exhaust pipe 3 flows through the heat medium flow path 7.
- the exhaust suppression unit 9 is configured to suppress (for example, shut off) the flow of exhaust gas in the exhaust passage 11 located on the outer peripheral portion of the heat recovery material 5.
- the exhaust suppression unit 9 is configured to suppress the flow of exhaust gas in a ring-shaped portion indicated by oblique lines between the circle C1 and the circle C2 shown in FIG.
- the exhaust suppression unit 9 includes a cylindrical reduced diameter portion 13.
- the reduced diameter portion 13 is provided upstream of the heat recovery material 5 in the exhaust flow direction.
- the inner diameter of the reduced diameter portion 13 is smaller than the outer diameter of the heat recovery material 5.
- the heat recovery material 5 is disposed inside the cylindrical heat recovery material support 15 constituting a part of the exhaust pipe 3, and is located at an intermediate portion of the heat recovery material support 15 (on the central axis of the heat recovery material support 15. It is provided in the middle part in the stretching direction).
- the outer diameter of the reduced diameter portion 13 is smaller than the inner diameter of the heat recovery material support 15.
- the reduced diameter portion 13 is coaxial with the heat recovery material support 15 and enters the heat recovery material support 15. That is, in FIG. 1, the right end of the reduced diameter portion 13 is located on the right side of the left end of the heat recovery material support 15.
- the reduced diameter portion 13 is formed in a tapered shape having a smaller inner diameter on the heat recovery material 5 side (downstream side of the exhaust flow).
- the exhaust pipe 3 is formed in, for example, a thin cylindrical shape, and has a cylindrical upstream portion (upstream exhaust pipe) 17 provided upstream of the heat recovery material 5 in the exhaust flow direction, and heat recovery.
- An intermediate part 19 located at the material 5 and the heat medium flow path 7 and a cylindrical downstream part (downstream exhaust pipe) 21 provided downstream of the heat recovery material 5 in the exhaust flow direction.
- the upstream part 17, the intermediate part 19, and the downstream part 21 are separate from each other.
- the upstream portion 17 includes a cylindrical fitting portion 23 and a reduced diameter portion 13.
- the reduced diameter portion 13 includes a tapered portion 25 having a truncated cone shape and a small diameter portion 27 having a cylindrical shape.
- the fitting portion 23, the tapered portion 25, and the small diameter portion 27 are arranged in this order in the exhaust flow direction.
- the diameter of the tapered portion 25 gradually decreases from the upstream side in the exhaust flow direction to the downstream side.
- the diameter of the fitting portion 23 is equal to the diameter of the end portion of the tapered portion 25 (the diameter of the end portion on the upstream side in the exhaust flow direction).
- the diameter of the small diameter portion 27 is equal to the diameter of the end portion of the tapered portion 25 (the diameter of the end portion on the downstream side in the exhaust flow direction).
- the downstream portion 21 is formed in the same shape and symmetry as the upstream portion 17.
- the intermediate part 19 includes an inner intermediate part 29 constituted by the heat recovery material support 15 and a heat medium flow path structure constituting the heat medium flow path 7 together with the heat recovery material support 15 outside the inner intermediate part 29. And an outer intermediate portion 33 constituted by a small diameter portion 35 of the body 31.
- the heat recovery material support 15 is formed in a cylindrical shape.
- the inner diameter of the heat recovery material support 15 is larger than the outer diameter of the small diameter portion 27 of the reduced diameter portion 13.
- the outer diameter of the heat recovery material support 15 is substantially equal to the outer diameter of the fitting portion 23 of the upstream portion 17.
- the heat medium flow path component 31 includes a cylindrical large diameter portion 37, a pair of cylindrical small diameter portions 35, and a pair of connecting portions 41.
- the pair of small diameter portions 35 are provided at both ends of the large diameter portion 37.
- the connecting portion 41 connects the small diameter portion 35 and the large diameter portion 37.
- the inner diameter of the small diameter portion 35 is equal to the outer diameter of the heat recovery material support 15 and the fitting portion 23.
- the length dimension of the heat medium flow path component 31 (the dimension of the central axis in the extending direction) is larger than the length dimension of the heat recovery material support 15.
- the annular heat medium flow path 7 is formed by the heat recovery material support 15 entering the inside of the heat medium flow path structure 31.
- the outer diameter of the heat medium flow path 7 is larger than the outer diameter of the upstream portion 17.
- One small diameter portion 35 (on the upstream side of the exhaust flow) of the heat medium flow path structure 31 projects from the heat recovery material support 15 (projects to the left in FIG. 1).
- the other small-diameter portion 35 (on the downstream side of the exhaust flow) of the heat medium flow path structure 31 also projects from the heat recovery material support 15 (projects to the right in FIG. 1).
- the fitting portion 23 of the upstream portion 17 enters and fits into one small diameter portion 35 of the heat medium flow path structure 31, and the downstream portion 21 enters the other small diameter portion 35 of the heat medium flow path structure 31.
- the exhaust pipe is formed by the small diameter portion 35, the heat recovery material support 15 and the downstream portion 21 of the heat medium flow path constituting body 31 of the upstream portion 17 and the intermediate portion 19. 3 is formed.
- the upstream portion 17 and the intermediate portion 19 and the downstream portion 21 are coaxial with each other.
- the heat medium flow path 7 is provided with a heat medium supply port 43 that supplies the heat medium to the heat medium flow path 7 and a heat medium recovery port 45 that recovers the heat medium from the heat medium flow path 7.
- the reduced diameter portion 13 of the downstream portion 21 may be omitted.
- Exhaust gas is throttled slightly at the reduced diameter portion 13 of the upstream portion 17 of the exhaust pipe 3, the flow area becomes narrow, and flows through the exhaust passage 11 of the heat recovery material 5 located inside the circle C1 in FIG. .
- exhaust does not flow at the outer peripheral portion of the heat recovery material 5 (ring-shaped portion indicated by oblique lines between the circle C1 and the circle C2 shown in FIG. 3).
- the exhaust gas flowing through the exhaust passage 11 inside the circle C1 in FIG. 3 heats the heat recovery material 5. This heat passes through the heat recovery material support 15 and heats the heat medium in the heat medium flow path 7 to recover the heat.
- the exhaust does not flow in the exhaust passage 11 located on the outer peripheral portion of the heat recovery material 5, or even if it flows, it flows slightly. It is about. That is, the exhaust gas flows away from the heat medium flow channel 7 and does not flow near the heat medium flow channel 7. As a result, the heat medium does not boil locally due to the heat of the exhaust gas in the heat medium flow path 7, and a decrease in heat recovery efficiency can be prevented.
- the exhaust heat recovery device 1 a valve for controlling the flow of exhaust gas is not provided, and exhaust gas does not flow through the detour, and the exhaust gas always flows through the heat recovery material 5. Thereby, the exhaust heat can be efficiently recovered in the heat recovery material 5 and the medium flow path 7.
- the exhaust suppressing portion 9 is configured by the cylindrical reduced diameter portion 13, and the exhaust gas passes through the reduced diameter portion 13, so that the flow of the exhaust gas is stabilized (exhaust flow rate).
- the streamline coincides with the extending direction of the central axis of the reduced diameter portion 13). Thereby, it can suppress exactly that exhaust gas flows into the exhaust passage 11 located in the outer peripheral part of the heat recovery material 5.
- the reduced diameter portion 13 since the reduced diameter portion 13 enters the heat recovery material support 15, the reduced diameter portion 13 and the heat recovery material 5 are close to each other. Thereby, it can suppress more exactly that exhaust gas flows into the exhaust passage 11 located in the outer peripheral part of the heat recovery material 5.
- the reduced diameter portion 13 is formed in a tapered shape having a small inner diameter on the heat recovery material 5 side (downstream in the exhaust flow direction).
- the exhaust discharged from the reduced diameter portion 13 flows in a concentrated manner at the central portion of the heat recovery material 5, and it is ensured that the exhaust flows through the exhaust passage 11 located at the outer peripheral portion of the heat recovery material 5.
- the configuration of the exhaust heat recovery device 1 may be appropriately changed as follows. An exhaust heat recovery device 1A according to a first modification will be described with reference to FIG.
- the reduced diameter portion 13 (upstream part 17) has a cylindrical shape (the inner diameter and the outer diameter are constant and smaller than the outer diameter of the heat recovery material 5). For example, it is formed in a cylindrical shape. Naturally, the inner diameters of the heat medium flow path 7 and the heat recovery material support 15 are larger than the outer diameter of the reduced diameter portion 13. Thereby, manufacture of the reduced diameter part 13 (upstream part 17) becomes easy.
- the exhaust heat recovery device 1B according to the second modification will be described with reference to FIG.
- a ring-shaped flange portion 47 is provided at the tip of the tapered diameter-reduced portion 13 of the upstream portion 17.
- the reduced diameter portion 13 is deleted.
- An exhaust heat recovery device 1C according to a third modification will be described with reference to FIG.
- the exhaust suppression unit 9 is adjacent to (for example, in contact with) the heat recovery material 5 on the upstream side in the exhaust flow direction. 49.
- the configuration of the exhaust heat recovery device 1 can be simplified.
- the exhaust suppression portion 9 is configured by providing the plurality of exhaust passages 11 only on the central portion side of the heat recovery material 5. Yes. Thereby, the assembly work and maintenance work of the exhaust heat recovery device are simplified.
- Each of the exhaust heat recovery devices 1, 1A, 1B, and 1C described above is provided with an exhaust pipe through which exhaust flows and a plurality of exhaust passages, and is installed inside the exhaust pipe and is exhausted through the exhaust passage.
- a heat recovery material that recovers the heat of the heat recovery medium a heat medium flow path that is provided in the exhaust pipe and through which a heat medium that recovers the heat recovered by the heat recovery material flows, and the vicinity of the heat medium flow path of the heat recovery material
- the exhaust heat recovery device 101 recovers the heat of exhaust (exhaust gas) of an automobile, for example.
- the exhaust heat recovery unit 101 includes an exhaust pipe 103, a heat recovery material (heat storage material) 105, a heat medium flow path (liquid heat medium flow path) 107, a heat medium supply pipe 109, and a heat.
- a medium recovery pipe 111 A medium recovery pipe 111.
- exhaust flows as shown by arrows in FIG.
- a plurality of exhaust passages 113 are provided in the heat recovery material 105.
- the heat recovery material 105 is installed inside the exhaust pipe 103 so that the outer periphery is in contact with the inner wall of the exhaust pipe 103, and recovers the heat of the exhaust gas flowing through the exhaust passage 113.
- the heat recovery material 105 is provided at an intermediate portion in the exhaust pipe 103 in the exhaust flow direction in the exhaust pipe 103 (the extending direction of the central axis CA1 of the exhaust pipe 103; the left-right direction in FIG. 7).
- the entire outer periphery of the heat recovery material 105 is in contact with the inner peripheral surface of the exhaust pipe 103. All the exhaust flows through the exhaust pipe 103 through the exhaust passage 113 of the heat recovery material 105.
- the exhaust passage 113 is constituted by a through hole.
- the through hole extends in the extending direction of the central axis CA1 of the exhaust pipe 103.
- the through-holes are located inside the exhaust pipe 103 positioned upstream of the heat recovery material 105 in the exhaust flow direction and in the exhaust pipe 103 positioned downstream of the heat recovery material 105 in the exhaust flow direction. Are connected to each other.
- the respective through holes are almost evenly distributed as shown in FIG. 8 and the like so that the heat recovered by the heat recovery material 105 is transmitted to the exhaust pipe 103. It has become.
- the heat medium channel 107 is provided outside the outer periphery of the heat recovery material 105 (outside the outer periphery of the exhaust pipe 103).
- a heat medium (liquid heat medium such as water or oil) that recovers the heat recovered by the heat recovery material 105 flows through the heat medium flow path 107.
- the heat medium flow path 107 is provided outside the exhaust pipe 103 at an intermediate portion in the longitudinal direction of the exhaust pipe 103 (left-right direction in FIG. 7). As shown in FIG. 8, the heat medium flow path 107 is formed in an annular shape (for example, an annular shape), and when viewed from the extending direction of the central axis CA ⁇ b> 1 of the exhaust pipe 103, the heat recovery material 105 and the exhaust pipe 103. It is provided outside so as to surround the heat recovery material 105. A heat medium that recovers the heat recovered by the heat recovery material 105 and transmitted through the exhaust pipe 103 flows through the heat medium flow path 107 along the outer periphery of the heat recovery material 105 (flows along an annular ring). Yes.
- the heat medium supply pipe 109 has one end in the longitudinal direction connected to the heat medium flow path 107, and supplies the heat medium from the heat medium supply port 115 at one end to the heat medium flow path 107. Yes.
- One end of the heat medium recovery pipe 111 in the longitudinal direction is connected to the heat medium flow path 107, and a heat medium (heat medium supply pipe 109 of the heat medium flow path 107 is connected from the heat medium recovery port 117 at one end.
- the heat medium that is supplied from the heat medium and flows through the heat medium flow path 107 is recovered.
- the heat medium recovery port 117 at one end of the heat medium recovery pipe 111 is provided near the heat medium supply port 115 in the circumferential direction of the annular heat medium flow path 107.
- the heat medium supply pipe 109 and the heat medium supply port 115 are eccentric with respect to the central axis CA1 of the annular heat medium flow path 107, and the heat medium supply pipe 109 is formed long. Has been. Accordingly, the heat medium supplied from the heat medium supply port 115 does not flow to the short path 119 of the annular heat medium flow channel 107, and almost all of the heat medium supplied from the heat medium supply port 115 is It is configured to flow to the long path 121 of the annular heat medium flow path 107 and reach the heat medium recovery port 117.
- the short path 119 is a shortcut path from the heat medium supply port 115 to the heat medium recovery port 117 in the annular heat medium flow channel 107.
- the long path 121 is a detour path from the heat medium supply port 115 to the heat medium recovery port 117 in the annular heat medium flow path 107. Since the heat medium recovery port 117 is provided near the heat medium supply port 115 in the circumferential direction of the annular heat medium flow channel 107, the heat medium flowing through the long path 121 almost passes through the annular heat medium flow channel 107. It is designed to make one lap.
- the heat medium supplied from the heat medium supply pipe 109 to the heat medium flow path 107 flows through the long path 121, for example, 70% or more, preferably 80% or more, more preferably 90% of the mass of the heat medium. % Or more, more preferably 98% or more flows through the long path 121.
- the angle ⁇ formed by the velocity vector (supply port vicinity velocity vector) V2 of the heat medium flowing through the annular heat medium flow path 107 (the heat medium flowing to the long path 121 on the side away from the heat medium recovery port 117) is an acute angle ( For example, 60 degrees or less. That is, the value of cos ⁇ in the inner product of the supply port speed vector V1 and the supply port vicinity speed vector V2 is “0” or more (for example, “1/2” or more).
- the heat medium supply port 115 and the heat medium recovery port are positioned so that the heat medium supplied from the heat medium supply port 115 enters the heat medium recovery port 117 after flowing through the annular heat medium flow path 107 almost once.
- 117 is provided.
- a line segment connecting the central axis CA1 of the exhaust pipe 103 and the heat medium supply port 115, the central axis CA1 of the exhaust pipe 103, and the heat medium recovery port The dominant angle (angle on the long path 121 side) of the intersecting angles with the line segment connecting to 117 is about 330 ° to 360 ° (one turn).
- the exhaust heat recovery device 101 is provided with an exhaust suppression unit (exhaust cutoff unit) 123.
- the exhaust suppression unit 123 is configured to suppress the flow of exhaust in the exhaust passage 113 located on the outer peripheral portion of the heat recovery material 105.
- the exhaust suppression part 123 is configured by a cylindrical reduced diameter part 125.
- the reduced diameter portion 125 is provided upstream of the heat recovery material 105 in the exhaust flow direction.
- the inner diameter of the reduced diameter portion 125 is smaller than the outer diameter of the heat recovery material 105.
- the exhaust heat recovery device 101 will be further described.
- the heat medium supply pipe 109 is formed in a long linear shape, and one end in the longitudinal direction is connected to the heat medium flow path 107.
- the extension line of the central axis CA2 of the heat medium supply pipe 109 is separated from the central axis CA1 of the exhaust pipe 103 by a predetermined distance L1.
- the heat medium recovery pipe 111 is also formed in a linear long cylinder shape, and one end in the longitudinal direction is connected to the heat medium flow path 107.
- a heat medium recovery port 117 is provided near the heat medium supply port 115 in the circumferential direction of the annular heat medium channel 107 so that the heat medium flowing through the long path 121 is recovered from the heat medium recovery port 117. It has become.
- the heat medium recovery port 117 When viewed from the extending direction of the central axis CA1 of the exhaust pipe 103, the heat medium recovery port 117 is in a direction (vertical direction in FIG. 8) perpendicular to the extension line of the central axis CA2 of the heat medium supply pipe 119.
- the exhaust pipe 103 is provided on the opposite side (for example, symmetrical position) with respect to the heat medium supply port 115 with the central axis CA1 therebetween.
- the heat medium velocity vector V3 at the heat medium recovery port 117 is equal to the heat medium velocity vector V1 at the heat medium supply port 115.
- the direction is reversed (see FIG. 8).
- the angle formed by each of the speed vectors V1 and V3 may be an obtuse angle.
- the heat medium recovery pipe 111 that is formed in a long linear shape like the heat medium supply pipe 109 extends long in parallel with the heat medium supply pipe 109 adjacent to the heat medium supply pipe 109.
- the length of the heat medium supply pipe 109 is substantially equal to the outer diameter of the annular heat medium flow path 107, but is larger than the inner diameter of the annular heat medium flow path 107 and the outer diameter of the annular heat medium flow path 107. It may be smaller.
- the length of the heat medium supply pipe 109 is a value between 0.5 times the inner diameter of the annular heat medium flow path 7 and three times the outer diameter of the heat medium flow path 107, or a value more than three times. It may be.
- the end of the heat medium supply pipe 109 on the heat medium supply port 115 side protrudes into the annular heat medium flow path 107.
- the end (front end) of the heat medium supply pipe 109 on the heat medium supply port 115 side is slightly separated from the inner peripheral wall (exhaust pipe 103 constituting the inner wall) of the annular heat medium flow path 107 (by a distance L2). )
- the end of the heat medium recovery pipe 111 on the heat medium recovery port 117 side also protrudes into the annular heat medium flow path 107.
- the end of the heat medium recovery pipe 111 on the heat medium recovery port 117 side is also slightly separated from the inner peripheral wall of the annular heat medium flow path 107.
- the end surface 127 of the heat medium supply pipe 109 on the heat medium supply port 115 side is an inclined surface facing the side opposite to the heat medium recovery port 117 (long path 121 side).
- the end surface 129 of the heat medium recovery pipe 111 on the heat medium recovery port 117 side is an inclined surface facing the side opposite to the heat medium supply port 115 (long path 121 side).
- the outer member 131 forming the annular heat medium flow path 107 engages with an engaged portion 133 provided at an end of the heat medium supply pipe 109 on the heat medium supply port 115 side. 135 is provided.
- the engaged part 133 engages with the engagement part 135, for example, the heat medium flow path 107 in the longitudinal direction of the heat medium supply pipe 109.
- the heat medium supply pipe 109 is positioned with respect to the above.
- the outer member 131 is provided with an engaging portion 139 with which an engaged portion 137 provided at an end portion of the heat medium recovery pipe 111 on the heat medium recovery port 117 side is engaged.
- the engaged portion 137 engages with the engagement portion 139, and the heat medium recovery pipe 111 is positioned in the same manner as the heat medium supply pipe 109. Is configured to be performed.
- the exhaust pipe 103 is formed in a thin cylindrical shape, for example.
- the exhaust pipe 103 is provided at a cylindrical upstream portion (upstream exhaust pipe) 141 provided upstream of the heat recovery material 105 in the exhaust flow direction, and at the heat recovery material 105 and the heat medium flow path 107.
- the intermediate portion 143 is provided, and a cylindrical downstream portion (downstream exhaust pipe) 145 provided downstream of the heat recovery material 105 in the exhaust flow direction.
- the upstream part 141, the intermediate part 143, and the downstream part 145 are separate from each other.
- the upstream portion 141 includes a cylindrical fitting portion 147 and a reduced diameter portion 125.
- the reduced diameter portion 125 includes a truncated cone-shaped tapered portion 149 and a cylindrical small diameter portion 151.
- the fitting portion 147, the tapered portion 149, and the small diameter portion 151 are arranged in this order in the exhaust flow direction.
- the diameter of the tapered portion 149 gradually decreases from the upstream side in the exhaust flow direction to the downstream side.
- the diameter of the fitting portion 147 is equal to the diameter of the end portion of the tapered portion 149 (the diameter of the end portion on the upstream side in the exhaust flow direction).
- the diameter of the small diameter portion 151 is equal to the diameter of the end of the tapered portion 149 (the diameter of the end on the downstream side in the exhaust flow direction).
- the downstream part 145 is formed in the same shape and symmetry as the upstream part 141.
- the intermediate portion 143 includes an inner intermediate portion 155 configured by the heat recovery material support 153 and an outer member (heat medium) that forms the heat medium flow path 107 together with the heat recovery material support 153 outside the inner intermediate portion 155.
- the heat recovery material support 153 is formed in a cylindrical shape.
- the inner diameter of the heat recovery material support 153 is larger than the outer diameter of the small diameter portion 151 of the reduced diameter portion 125.
- the outer diameter of the heat recovery material support 153 is substantially equal to the outer diameter of the fitting portion 147 of the upstream portion 141.
- the heat medium flow path component 131 includes a cylindrical large diameter portion 161, a pair of cylindrical small diameter portions 163, and a pair of connecting portions 165.
- the pair of small diameter portions 163 are provided at both ends of the large diameter portion 161.
- the connecting portion 165 connects the small diameter portion 163 and the large diameter portion 161.
- the inner diameter of the small diameter portion 163 is equal to the outer diameter of the heat recovery material support 153 and the fitting portion 147.
- the length dimension of the heat medium flow path component 131 (the dimension in the extending direction of the central axis CA1) is larger than the length dimension of the heat recovery material support 153.
- the annular heat medium flow path 107 is formed by the heat recovery material support 153 entering the inside of the heat medium flow path structure 131.
- the outer diameter of the heat medium passage 107 is larger than the outer diameter of the upstream portion 141.
- One small-diameter portion 163 (upstream of the exhaust flow) of the heat medium flow path member 131 projects from the heat recovery material support 153 (projects to the left in FIG. 7).
- the other small diameter portion 163 (on the downstream side of the exhaust flow) of the heat medium flow path structure 131 also protrudes from the heat recovery material support 153 (in FIG. 7, it protrudes to the right).
- the fitting portion 147 of the upstream portion 141 enters and fits into one small diameter portion 163 of the heat medium flow path structure 131, and the downstream position 145 enters the other small diameter portion 163 of the heat transfer medium flow structure 131.
- the fitting portion 147 enters and fits, so that the exhaust pipe is formed by the small diameter portion 163, the heat recovery material support 153, and the downstream portion 145 of the heat medium flow path constituting body 131 of the upstream portion 141 and the intermediate portion 143. 103 is formed.
- the upstream part 141, the intermediate part 143, and the downstream part 145 are coaxial with each other.
- the reduced diameter portion 113 of the downstream portion 145 may be omitted.
- the large-diameter portion 161 of the heat medium flow path structure 131 is provided with a through hole.
- a heat medium supply pipe 109 and a heat medium recovery pipe 111 are provided in each of these through holes.
- the engaged portion 133 of the heat medium supply pipe 109 includes a cylindrical small-diameter portion 167 formed at one end in the longitudinal direction of the heat medium supply pipe 109.
- a step 169 is formed at the proximal end of the small diameter portion 167.
- the engagement portion 135 of the heat medium flow path structure 131 with which the engaged portion 133 of the heat medium supply pipe 109 is engaged rises from the outer peripheral portion of the through hole of the large diameter portion 161 of the heat medium flow path structure 131. It is comprised by the cylindrical protrusion 171 which protrudes.
- the inner diameter of the protrusion 171 is equal to the outer diameter of the small diameter portion 167.
- the small diameter portion 167 of the heat medium supply pipe 109 is inserted into the protrusion 171, and the step 169 is brought into contact with the tip of the protrusion 171, whereby the heat medium supply pipe 109 is positioned with respect to the heat medium flow path structure 131. It is configured to be made.
- the engaged part 137 of the heat medium recovery pipe 111 and the engaging part 139 with which the engaged part 137 engages are also engaged with the engaged part 133 and the engaged part 133 of the heat medium supply pipe 109.
- the configuration is the same as that of the unit 135.
- the heat medium flowing through the long path 121 is recovered by the heat medium recovery pipe 111.
- the exhaust heat recovery device 101 is configured such that almost all of the heat medium supplied from the heat medium supply port 115 does not flow through the short path 119 of the heat medium flow path 107 but flows into the long path 121. Thereby, the disturbance of the flow of the heat medium in the heat medium flow path 107 (particularly at the heat medium supply port 115) is suppressed, and the heat recovery efficiency can be increased.
- the heat medium supply pipe 109 is formed in a straight line and is long, and one end in the longitudinal direction of the heat medium supply pipe 109 is connected to the heat medium flow path 107. Yes.
- the form of the flow line of the heat medium at the heat medium supply port 115 can be kept constant by the inertial force of the heat medium, the disturbance of the flow of the heat medium at the heat medium supply port 115 is suppressed, and the heat medium Recovery efficiency can be increased.
- the heat medium recovery pipe 111 is formed in a long linear shape like the heat medium supply pipe 109, and is adjacent to the heat medium supply pipe 109. 109 extends long in parallel.
- the heat medium supply pipe 109 and the heat medium recovery pipe 111 are extended to one side of the exhaust pipe 103, and the heat medium supply pipe and the heat medium recovery pipe are connected to the exhaust pipe as in the prior art. Compared to the case of extending to both sides, the space can be saved.
- an extension line of the central axis CA2 of the heat medium supply pipe 109 is predetermined from the central axis CA1 of the exhaust pipe 103. A distance away. As a result, the heat medium emerging from the heat medium supply port 115 strikes the exhaust pipe 103 obliquely. For this reason, the resistance of the flow of the heat medium can be reduced.
- the end of the heat medium supply pipe 109 on the heat medium supply port 115 side protrudes into the annular heat medium flow path 107. For this reason, it can further suppress that the heat medium supplied from the heat medium supply port 115 flows into the short path 119 of the heat medium flow path 107.
- the end of the heat medium supply pipe 109 on the heat medium supply port 115 side is slightly separated from the inner peripheral wall (exhaust pipe 103) of the annular heat medium flow path 107. For this reason, the malfunction by thermal expansion and a vibration can be eliminated.
- the heat medium recovery pipe 111 has the same effect.
- the front end of the heat medium supply pipe 109 may collide with the outer wall of the exhaust pipe 103 due to vibration and thermal expansion, and noise may be generated.
- the tip of the heat medium supply pipe 109 is fixed to the outer wall of the exhaust pipe 103 by welding or the like, there is a possibility that the part to be welded may burst due to thermal expansion or the like. Therefore, the dimension L2 shown in FIG. 8 is about 0.5 mm to 2 mm (preferably about 1.0 mm), and the tip of the heat medium supply pipe 109 is separated from the inner wall of the exhaust pipe 103.
- the end surface 127 on the heat medium supply port 115 side of the heat medium supply pipe 109 is formed as an inclined surface facing the long path 121 side. For this reason, almost all of the heat medium supplied from the heat medium supply port 115 can be flowed more reliably to the long path 121 of the heat medium flow path 107.
- the end surface 129 of the heat medium recovery pipe 111 on the heat medium recovery port 117 side is formed as a slope facing the long path 121 side. For this reason, the heat medium of the long path 121 of the heat medium flow path 107 can be efficiently recovered.
- the outer member 131 forming the annular heat medium flow path 107 is connected to the heat medium supply port 115 side (heat medium) of the heat medium supply pipe 109 (heat medium recovery pipe 111).
- An engaging portion 135 (139) is provided that engages an engaged portion 133 (137) provided at one end of the recovery port 117 side.
- the engaged portion 133 (137) engages with the engagement portion 135 (139), so that the heat medium supply pipe. 109 (heat medium recovery piping 111) is configured to be positioned. For this reason, the exhaust heat recovery device 101 can be assembled accurately and quickly.
- the heat medium supply pipe 109 may be further away from the central axis CA1 of the exhaust pipe 103.
- the extension line in the longitudinal direction of the heat medium supply pipe 109 (extension line of the central axis CA ⁇ b> 2)
- the distance from the central axis CA1 may be approximately the same as the radius of the heat medium flow path 107.
- the heat medium recovery port in a direction (vertical direction in FIG. 10) perpendicular to the extension line of the central axis CA2 of the heat medium supply pipe 109.
- 117 is preferably provided between the central axis CA1 of the exhaust pipe 103 and the heat medium supply port 115.
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Abstract
Description
Claims (14)
- 排気が流れる排気管と、
前記排気管内に設けられ、前記排気の熱を回収する熱回収材と、
前記熱回収材で回収された熱を回収する熱媒体が流れる熱媒体流路と、
前記排気管に設けられ、前記排気を前記熱回収材の一部にのみ通す排気抑制部と、
を備えた排気熱回収器。 - 前記排気抑制部は、
前記熱回収材よりも前記排気の流れ方向上流側に設けられ、
内径が前記熱回収材の外径よりも小さい筒形状を有する
請求項1に記載の排気熱回収器。 - 前記排気管は、筒状の熱回収材支持体を備え、
前記熱回収材は、前記熱回収材支持体の内部で前記熱回収材支持体の中間部に設けられ、
前記排気抑制部は、前記熱回収材支持体内に入り込んだ縮径部を備えた
請求項2に記載の排気熱回収器。 - 前記縮径部は、前記熱回収材側で内径が小さくなっているテーパ形状を有する
請求項3に記載の排気熱回収器。 - 前記縮径部は、内径と外径とが一定であって前記熱回収材の外径よりも小さい筒形状を有する
請求項3に記載の排気熱回収器。 - 前記排気抑制部は、前記排気の流れ方向上流側で前記回収部材に隣接したリング状の部材を備えた
請求項1に記載の排気熱回収器。 - 前記排気抑制部は、前記熱回収材の中央部側にのみ設けられた複数の排気通路である
請求項1に記載の排気熱回収器。 - 前記排気抑制部は、前記熱回収材の前記熱媒体流路近傍での前記排気の流れを抑制する
請求項1に記載の排気熱回収器。 - 前記熱媒体流路に接続され、前記熱媒体流路に熱媒体を供給する熱媒体供給口を有する熱媒体供給配管と、
前記熱媒体流路に接続され、前記熱媒体供給口の近くに設けられた前記熱媒体流路の熱媒体を回収する熱媒体回収口を有する熱媒体回収配管と、
をさらに備え、
前記熱媒体流路は、環形状を有し、前記熱回収材の外側に設けられ、
前記熱媒体流路では、前記熱回収材で回収された熱を回収する熱媒体が前記熱回収材の外周に沿って流れ、
前記熱媒体供給口から供給された熱媒体のほぼ総てが、前記熱媒体供給口から前記熱媒体回収口までの遠回りの経路である長路へ流れる
請求項1に記載の排気熱回収器。 - 前記熱媒体流路に接続され、前記排気管の中心軸の延伸方向から見たときに中心軸の延長線が前記排気管の中心軸から所定の距離だけ離れた直線状の長い筒形状を有し、前記熱媒体流路に熱媒体を供給する熱媒体供給口を有する熱媒体供給配管と、
前記熱媒体流路に接続され、前記熱媒体供給口の近くに設けられた熱媒体回収口であって前記熱媒体供給口から前記熱媒体回収口までの遠回りの経路である長路を流れてきた熱媒体を回収する熱媒体回収口を有する熱媒体回収配管と、
をさらに備え、
前記熱媒体流路は、環形状を有し、前記熱回収材の外側に設けられ、
前記熱媒体流路では、前記熱回収材で回収された熱を回収する熱媒体が前記熱回収材の外周に沿って流れる
請求項1に記載の排気熱回収器。 - 前記排気管の中心軸の延伸方向から見たときに、前記熱媒体供給配管の長手方向の延長線が、前記排気管の中心軸から前記熱媒体流路の半径と同程度離れた
請求項10に記載の排気熱回収器。 - 前記熱媒体供給配管の前記熱媒体供給口側の端部は、前記熱媒体流路の環形状内に突出し、
前記熱媒体供給配管の前記熱媒体供給口側の端は、前記熱媒体流路の環形状の内周壁から僅かに離れた
請求項9~請求項11のいずれか1項に記載の排気熱回収器。 - 前記熱媒体供給配管の前記熱媒体供給口側の端面は、前記熱媒体回収口とは反対側を向いた斜面である
請求項12に記載の排気熱回収器。 - 前記熱媒体流路の環形状の外側部材は、前記熱媒体供給配管の前記熱媒体供給口側の端部に設けられた被係合部に係合する係合部を備え、
前記熱媒体供給配管の前記外側部材への設置による前記被係合部と前記係合部との係合によって、前記熱媒体供給配管の位置決めがされる
請求項9~請求項13のいずれか1項に記載の排気熱回収器。
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CN201480074497.XA CN105940198B (zh) | 2014-01-30 | 2014-12-05 | 排气热回收器 |
DE112014006300.2T DE112014006300T5 (de) | 2014-01-30 | 2014-12-05 | Abgas Verlust-Wärme Rückgewinnungs-Vorrichtung |
US15/115,036 US10648746B2 (en) | 2014-01-30 | 2014-12-05 | Exhaust waste heat recovery device |
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JP2014015112A JP6251583B2 (ja) | 2014-01-30 | 2014-01-30 | 排気熱回収器 |
JP2014015117A JP6251584B2 (ja) | 2014-01-30 | 2014-01-30 | 排気熱回収器 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017069265A1 (ja) * | 2015-10-23 | 2017-04-27 | 日本碍子株式会社 | 排熱回収器 |
JP2021042922A (ja) * | 2019-09-12 | 2021-03-18 | 日本碍子株式会社 | 熱交換器及びその製造方法 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016185963A1 (ja) * | 2015-05-21 | 2016-11-24 | 日本碍子株式会社 | 熱交換部品 |
CN111512111A (zh) * | 2018-01-05 | 2020-08-07 | 日本碍子株式会社 | 热交换部件、热交换器和带净化机构的热交换器 |
CN110314708B (zh) * | 2018-03-30 | 2024-05-14 | 日本碍子株式会社 | 热交换器 |
JP7217654B2 (ja) * | 2019-03-26 | 2023-02-03 | 日本碍子株式会社 | 熱交換器 |
JP7169923B2 (ja) * | 2019-03-27 | 2022-11-11 | 日本碍子株式会社 | 熱交換器 |
CN111750705B (zh) * | 2019-03-28 | 2022-04-29 | 日本碍子株式会社 | 热交换器的流路结构以及热交换器 |
JP2022110523A (ja) * | 2021-01-18 | 2022-07-29 | 日本碍子株式会社 | 熱交換器の流路部材、及び熱交換器 |
CN115654992A (zh) * | 2022-11-08 | 2023-01-31 | 浙江银轮机械股份有限公司 | 排气结构及换热器 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS572414A (en) * | 1980-06-09 | 1982-01-07 | Nissan Motor Co Ltd | Heat accumulator |
JPH10299472A (ja) * | 1997-04-23 | 1998-11-10 | Isuzu Ceramics Kenkyusho:Kk | 多孔質材料を用いた熱交換器及び該熱交換器によるエネルギ回収装置を備えたセラミックエンジン |
JP2008057820A (ja) * | 2006-08-30 | 2008-03-13 | Denso Corp | 熱交換装置 |
JP2009024565A (ja) * | 2007-07-18 | 2009-02-05 | Toyota Motor Corp | 内燃機関の排熱回収装置 |
WO2011071161A1 (ja) * | 2009-12-11 | 2011-06-16 | 日本碍子株式会社 | 熱交換器 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4096910A (en) * | 1976-10-28 | 1978-06-27 | General Electric Company | Concentric-tube stacked plate heat exchanger |
NO148573C (no) * | 1981-06-22 | 1983-11-02 | Norsk Hydro As | Varmeveksler |
JPH10148120A (ja) | 1996-11-18 | 1998-06-02 | Isuzu Ceramics Kenkyusho:Kk | 給電用エンジンの熱回収装置 |
US6119457A (en) * | 1997-04-23 | 2000-09-19 | Isuzu Ceramics Research Institute Co., Ltd. | Heat exchanger apparatus using porous material, and ceramic engine provided with supercharger driven by thermal energy recorded from exhaust gas by the same apparatus |
JP3777895B2 (ja) * | 1999-08-11 | 2006-05-24 | 株式会社デンソー | セラミックハニカム構造体 |
JP2001073754A (ja) * | 1999-09-08 | 2001-03-21 | Isuzu Ceramics Res Inst Co Ltd | 排気ガスエネルギを回収する熱交換器 |
EP2039428B1 (en) | 2006-06-23 | 2014-05-14 | NGK Insulators, Ltd. | Honeycomb structure and method for manufacturing same |
JP2008175461A (ja) * | 2007-01-18 | 2008-07-31 | Toyota Motor Corp | 熱交換器 |
EP2196648A1 (en) * | 2007-10-10 | 2010-06-16 | Yanmar Co., Ltd. | Engine exhaust heat recovery device and energy supply device using the same |
JP2010060196A (ja) | 2008-09-03 | 2010-03-18 | Toyota Motor Corp | ガス冷却装置 |
JP2010229847A (ja) | 2009-03-26 | 2010-10-14 | Yutaka Giken Co Ltd | 排熱回収器 |
KR101125004B1 (ko) * | 2009-12-04 | 2012-03-27 | 기아자동차주식회사 | 냉각수 및 오일 통합 열교환형 배기열 회수장치 |
JP2012037165A (ja) | 2010-08-09 | 2012-02-23 | Ngk Insulators Ltd | 熱交換部材 |
JP5797740B2 (ja) | 2011-03-29 | 2015-10-21 | 日本碍子株式会社 | 熱交換部材、および熱交換器 |
DE102011103110B4 (de) * | 2011-05-25 | 2014-08-28 | Benteler Automobiltechnik Gmbh | Abgassystem mit Kreislaufwärmerohr |
JP5470327B2 (ja) | 2011-05-27 | 2014-04-16 | 株式会社ユタカ技研 | 熱回収器 |
JP6144937B2 (ja) | 2012-03-30 | 2017-06-07 | 日本碍子株式会社 | 熱交換部材 |
JP2015224797A (ja) * | 2014-05-26 | 2015-12-14 | カルソニックカンセイ株式会社 | 排気熱回収器及びその製造方法 |
-
2014
- 2014-12-05 DE DE112014006300.2T patent/DE112014006300T5/de active Pending
- 2014-12-05 WO PCT/JP2014/082252 patent/WO2015114949A1/ja active Application Filing
- 2014-12-05 CN CN201480074497.XA patent/CN105940198B/zh active Active
- 2014-12-05 US US15/115,036 patent/US10648746B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS572414A (en) * | 1980-06-09 | 1982-01-07 | Nissan Motor Co Ltd | Heat accumulator |
JPH10299472A (ja) * | 1997-04-23 | 1998-11-10 | Isuzu Ceramics Kenkyusho:Kk | 多孔質材料を用いた熱交換器及び該熱交換器によるエネルギ回収装置を備えたセラミックエンジン |
JP2008057820A (ja) * | 2006-08-30 | 2008-03-13 | Denso Corp | 熱交換装置 |
JP2009024565A (ja) * | 2007-07-18 | 2009-02-05 | Toyota Motor Corp | 内燃機関の排熱回収装置 |
WO2011071161A1 (ja) * | 2009-12-11 | 2011-06-16 | 日本碍子株式会社 | 熱交換器 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017069265A1 (ja) * | 2015-10-23 | 2017-04-27 | 日本碍子株式会社 | 排熱回収器 |
JPWO2017069265A1 (ja) * | 2015-10-23 | 2018-08-09 | 日本碍子株式会社 | 排熱回収器 |
US10494974B2 (en) | 2015-10-23 | 2019-12-03 | Ngk Insulators, Ltd. | Exhaust heat recovery device |
JP2021042922A (ja) * | 2019-09-12 | 2021-03-18 | 日本碍子株式会社 | 熱交換器及びその製造方法 |
JP7014759B2 (ja) | 2019-09-12 | 2022-02-01 | 日本碍子株式会社 | 熱交換器及びその製造方法 |
Also Published As
Publication number | Publication date |
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CN105940198A (zh) | 2016-09-14 |
US20160341489A1 (en) | 2016-11-24 |
US10648746B2 (en) | 2020-05-12 |
CN105940198B (zh) | 2018-11-16 |
DE112014006300T5 (de) | 2016-11-17 |
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