WO2006123535A1 - 熱交換器 - Google Patents
熱交換器 Download PDFInfo
- Publication number
- WO2006123535A1 WO2006123535A1 PCT/JP2006/308973 JP2006308973W WO2006123535A1 WO 2006123535 A1 WO2006123535 A1 WO 2006123535A1 JP 2006308973 W JP2006308973 W JP 2006308973W WO 2006123535 A1 WO2006123535 A1 WO 2006123535A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tube
- core tube
- core
- soot
- heat exchanger
- Prior art date
Links
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
- F28D7/02—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 helically coiled
-
- 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
- F28F1/06—Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/156—Making tubes with wall irregularities
- B21C37/158—Protrusions, e.g. dimples
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
- B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0012—Brazing heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
-
- 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
- F28D7/0008—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 one medium being in heat conductive contact with the conduits for the other medium
- F28D7/0016—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 one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being bent
-
- 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
- F28D7/02—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 helically coiled
- F28D7/022—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 helically coiled the conduits of two or more media in heat-exchange relationship being helically coiled, the coils having a cylindrical 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
- F28D7/02—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 helically coiled
- F28D7/024—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 helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
-
- 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
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
- F28F1/424—Means comprising outside portions integral with inside portions
- F28F1/426—Means comprising outside portions integral with inside portions the outside portions and the inside portions forming parts of complementary shape, e.g. concave and convex
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/14—Heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/047—Water-cooled condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2210/00—Heat exchange conduits
- F28F2210/06—Heat exchange conduits having walls comprising obliquely extending corrugations, e.g. in the form of threads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/04—Fastening; Joining by brazing
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49362—Tube wound about tube
Definitions
- the present invention relates to heat exchange, and more particularly, to a heat exchange comprising a core tube having a protrusion formed on the inner surface by pressing the outer surface, and a soot tube wound around the outer surface of the core tube.
- a heat exchanger for exchanging heat between the first fluid and the second fluid may be provided.
- heat exchange for a water heater such as a heat pump water heater has a double pipe force of a core pipe through which water flows and a vertical pipe through which refrigerant flows, and this is formed into an elliptical spiral shape.
- a spiral tube is wound around the outer periphery of the jig corresponding to the core tube, and then the jig is pulled out to form a vertical tube shape body.
- the core tube is inserted into the vertical tube shape body, and the heat exchanger is inserted.
- a technique for forming the above has been proposed.
- a technique has been proposed in which a protrusion is provided on the inner surface by pressing the outer surface of the core tube to improve the heat transfer performance (Patent Document 1).
- Patent Document 1 Japanese Patent Publication No. 6-70556
- the jig is removed to form a tubular tube-shaped body, and a core tube is inserted into the tubular tube-shaped body to form a heat exchanger
- poor contact between the core tube and the soot tube may occur and heat transfer performance may be reduced.
- the core tube and the vertical tube are uneven because the cross section of the core tube is uneven at the bent part. May cause poor contact with the heat transfer performance.
- the object of the present invention is to overcome the above problems and press the outer surface to form protrusions on the inner surface.
- the heat transfer performance of a heat exchanger having a core tube and a soot tube wound around the outer surface of the core tube is improved.
- Another object of the present invention is to provide a method for manufacturing a heat exchanger having good heat transfer performance.
- the heat exchange according to the first invention is a heat exchange comprising a core tube having a protrusion formed on the inner surface by pressing the outer surface, and a soot tube wound around the outer surface of the core tube.
- the tube has a straight portion and a bent portion, and the outer surface of the soot tube is in contact with the outer surface of the core tube without gaps in the portion on the bending center side of the bending portion, and in the portion on the bending center side of the bending portion.
- the outer surface of the soot tube and the outer surface of the core tube are joined by a brazing material.
- protrusions are provided on the inner surface of the core tube of the heat exchanger. Therefore, the heat transfer coefficient is improved by the protrusions provided in the pipe, and the performance of the entire heat exchange is improved.
- the spiral tube is wound around the core tube and then formed into an elliptical spiral shape, the cross section of the core tube is uneven due to the protrusion at the bent portion, resulting in poor contact between the core tube and the spiral tube. Heat transfer performance may be reduced.
- the outer surface of the tube is in contact with the outer surface of the core tube without any gap in the bent center side portion of the bent portion, and in the portion of the bent portion on the bent center side.
- the outer surface of the core and the outer surface of the core tube are joined by a brazing material. Therefore, at least at the bending center side portion of the bent portion, contact failure between the core tube and the rod tube does not occur, and heat transfer performance can be improved.
- the method of manufacturing a heat exchanger according to the second invention is a method of manufacturing a heat exchanger comprising a core tube and a soot tube, and presses the outer surface of the core tube to form protrusions on the inner surface.
- a process in which the outer tube is wound around the outer surface of the core tube, a step in which the outer tube is wound around the outer surface of the core tube, and the outer surface of the outer tube and the outer surface of the core tube are brazed. Brazing process.
- the cross section of the core tube is uneven due to the protrusion at the bent part, resulting in poor contact between the core pipe and the vertical tube, and the heat transfer performance decreases. There is a fear.
- the outer surface of the core tube is pressed to form a protrusion on the inner surface, and then the soot tube is wound around the outer surface of the core tube, and the soot tube is wound around the outer surface of the core tube. Work to bend the core tube by bending the core tube and the whole tube using a jig or the like.
- the outer surface of the soot tube can be in contact with the outer surface of the core tube without any gaps, and at least in the bent center side portion of the bent portion, contact failure between the core tube and the soot tube does not occur, and the heat transfer performance is reduced. Improvement can be achieved.
- the bent portion is not provided with a protrusion, and the bent portion has a force that cannot obtain the effect of improving the heat transfer performance by the protrusion.
- the soot tube is wound around the outer surface of the core tube, if the core tube and the entire soot tube are bent, the overall strength will increase even if there are protrusions on the bent part, and during the bending work process It is possible to suppress the occurrence of large deformation and breakage in the recessed portion of the outer surface of the core tube.
- the outer surface of the soot tube and the outer surface of the core tube are brazed with a brazing material, so that the core tube and the soot tube can be joined to improve the heat transfer performance.
- a heat exchanger is the heat exchanger according to the first aspect of the invention, wherein a core tube having a protrusion formed on the inner surface by pressing the outer surface, and a soot tube wound around the outer surface of the core tube And a brazing material that brazes the outer surface of the soot tube and the outer surface of the core tube, wherein the core tube has a bent portion formed by being bent in a state where the soot tube is wound around the outer surface. And then.
- the core tube has a straight portion and a bent portion.
- the bent portion is formed by being bent in a state where the soot tube is wound around the outer surface of the core tube, so that the outer surface of the soot tube is the same as the outer surface of the core tube. It can be wound so that there is no gap between them.
- the heat transfer coefficient is improved by the protrusions provided in the pipe, and the overall heat exchange performance is improved. improves.
- the core tube is wound around the core tube and then formed into an elliptical spiral shape, the cross section of the core tube is uneven due to the protrusions at the bent portion, so that the contact between the core tube and the core tube is poor. May occur and heat transfer performance may be reduced.
- the outer surface of the tube is in contact with the outer surface of the core tube without any gaps at the bending center side of the bent part.
- the outer surface of the soot tube and the outer surface of the core tube are joined by a brazing material at the bending center side portion of the bent portion. Therefore, contact failure between the core tube and the rod tube does not occur at least at the bending center side portion of the bent portion, and heat transfer performance can be improved.
- the outer surface of the core tube is pressed to form a protrusion on the inner surface, and then the soot tube is wound around the outer surface of the core tube. While being wound around the outer surface, the core tube and the entire vertical tube are bent using, for example, a jig, and the core tube is bent. In this way, at least at the bending center side part of the bending part that comes into contact with a jig or the like in the course of bending work, the outer surface of the soot tube can be in contact with the outer surface of the core tube without any gaps, and at least bends. In the portion on the bending center side of the portion, contact failure between the core tube and the soot tube does not occur, and heat transfer performance can be improved.
- the bent portion is not provided with a protrusion, and the bent portion has a force that cannot obtain the effect of improving the heat transfer performance by the protrusion.
- the soot tube is wound around the outer surface of the core tube, if the core tube and the entire soot tube are bent, the overall strength will increase even if there are protrusions on the bent part, and during the bending work process It is possible to suppress the occurrence of large deformation and breakage in the recessed portion of the outer surface of the core tube.
- the outer surface of the soot tube and the outer surface of the core tube are brazed with a brazing material, so that the core tube and the soot tube can be joined to improve the heat transfer performance.
- FIG. 2 Schematic of the water heat exchanger.
- FIG. 3 Plan view of the core tube.
- FIG. 4 (a) A partially enlarged view including a bent portion of a heat exchanger.
- FIG. 5A is a diagram showing a process of forming a spiral projection of a core tube.
- B The figure showing the formation process of the up-and-down corresponding protrusion of a core pipe.
- FIG. 6 is a diagram showing a process of forming a bent portion of a core tube.
- FIG. 7 (a) A diagram showing an application process of a paste-like brazing material. (B) The figure showing the brazing process of a heat exchanger.
- FIG. 1 is a schematic diagram of a heat pump type water heater employing the heat exchanger of the present invention.
- the heat pump water heater in order to efficiently use the night electricity with a low electricity bill, water is boiled over a long time to about 90 ° C over about 10 ° C.
- the heat pump water heater includes a hot water storage unit 1 and a heat pump unit 2.
- Hot water supply 1 includes a water pipe 11, a hot water storage tank 12, a water circulation pump 13, a water supply pipe 3, a core pipe 31 constituting a water heat exchanger 30, a hot water pipe 16, and a mixing valve 17 And a hot water supply pipe 18 are sequentially connected.
- tap water is supplied from the water supply pipe 11 to the hot water storage tank 12.
- Hot water storage tank 12 Water having a low temperature is supplied from the water circulation pump 13 to the core pipe 31 of the water heat exchanger 30 and heated. The heated hot water flows into the upper part of the hot water storage tank 12. Hot hot water discharged from the upper part of the hot water storage tank 12 through the hot water pipe 16 is mixed with cold water in the mixed water pipe 19 by the mixing valve 17. The temperature of the hot water supply is adjusted by the mixing valve 17 and supplied to the user through the hot water supply pipe 18.
- the heat pump unit 2 includes a refrigerant circulation circuit.
- the refrigerant circulation circuit includes a compressor 21, a water heat exchanger 30, an expansion valve 23, and an air heat exchanger 24. Are connected in order.
- the refrigerant is compressed to a high pressure by the compressor 21 and then sent to the hydrothermal exchanger 30.
- the refrigerant heat-exchanged in the water heat exchanger 30 passes through the expansion valve 23 and is supplied to the air heat exchanger.
- the refrigerant absorbs heat from the surroundings and is returned to the compressor 21.
- Fig. 2 is a schematic diagram of hydrothermal exchange 30 in a heat pump water heater. As shown in FIG. 2, the hydrothermal reversal 30 is composed of a core tube 31 and a soot tube 32.
- the core tube 31 has a straight portion A and a bent portion B on the same plane, is formed in a spiral shape so as to be an oval shape, and forms a water passage W.
- the soot tube 32 is spirally wound around the outer periphery of the core tube 31 to form a refrigerant passage R.
- the outer periphery of the spiral in the core tube 31 is the water inlet 311, and the center of the spiral in the core tube 31 is the water outlet 312.
- the refrigerant in the vertical pipe 32 also flows in the A22 direction force at the refrigerant inlet 322 and dissipates heat. Thereafter, the A21 direction force also flows out at the refrigerant outlet 321.
- the tap water supplied in the Al 1 direction at the water inlet 311 is heated by this heat and becomes hot water and flows out in the direction A12 at the water outlet 312.
- the core tube 31 will be described.
- Tube 31 was used.
- the protrusions 313 provided on the upper side when viewed from the paper surface direction are displayed.
- the core tube 31 is formed in a spiral shape so as to have an elliptical shape on the same plane, and forms a water passage W.
- the bending radius R of the core tube 31 is 40 mm. It has become.
- the bending radius R of the core tube 31 is the core Desirably 3 to 5 times the outer diameter of tube 31.
- FIG. 4 (a) is a partially enlarged view including the bent portion B of the water heat exchanger 30 in the heat pump water heater
- FIG. 4 (b) is a CC sectional view of the bent portion.
- the inner surface of the core tube 31 is formed on the inner surface, the protrusion having a height HI of 1 mm, and the pitch P in the tube axis direction is It is provided to be 20mm.
- a recess is formed on the outer surface corresponding to the portion where the protrusion is formed on the inner surface of the core tube 31.
- the protrusion 313 is formed on the inner surface of the core tube 31.
- a method of forming the protrusion as shown in FIG. 5A, a jig 100 having a gear shape is manufactured, and the tooth portion of the gear 100 is pressed against the outer surface of the core tube 31 to form a spiral shape.
- the inner surface protrusion 313 of the substrate can be formed.
- protrusions 413 arranged linearly in the tube axis direction can be formed by pressing the gear 101 at a position facing the tube axis (a).
- the method for forming the protrusion is not limited to these methods.
- the soot tube 32 is wound around the outer periphery of the core tube 31 in a spiral shape.
- a bent part is formed by bending the core tube 31 and the soot tube 32 as a whole using a jig such as a pipe bender. Work to do.
- a jig such as a pipe bender.
- the outer diameter when the soot tube is wound around the core tube is 15 mm. It is about 7mm. Therefore, the bend is formed using a bender with an outer diameter of 15.9 mm.
- the jig used in this embodiment is composed of fixed jigs 50 and 60 and an operating jig 70.
- the noop bender is not limited as a jig.
- the outer surface of the core tube 32 can contact the outer surface of the core tube 31 without a gap at least in the portion on the bending center side that contacts the jig 50.
- the cross section of the core tube becomes uneven due to the protrusion at the bent part, resulting in poor contact between the core tube and the vertical tube, resulting in a decrease in heat transfer performance.
- the outer surface of the core tube 31 is pressed to form protrusions on the inner surface, and then the steel tube 32 is wound around the outer surface of the core tube 31, at least at the portion of the bending portion on the bending center side. The poor contact between the core tube 31 and the soot tube 32 does not occur, and the heat transfer performance can be improved.
- the bent portion is not provided with a protrusion, and the bent portion has a force that cannot obtain the effect of improving the heat transfer performance by the protrusion.
- the core tube 32 is wound around the outer surface of the core tube 31, if the core tube 31 and the entire core tube 32 are curved, the overall strength increases even if the bent part is provided with a protrusion, and the It is possible to suppress the occurrence of large deformation and breakage in the recessed part of the outer surface of the core tube during the work process.
- a brazing operation is performed.
- a heat exchanger 30 in which a plurality of soot tubes 32 are spirally wound around a core tube 31, the paste contained in a container 80 on the soot tube 32 A brazing material 33 is applied.
- brazing is performed by passing the heat exchanger 30 through the vacuum furnace or the atmosphere furnace H.
- the outer surface of the steel tube 32 and the outer surface of the core tube 31 are joined by the brazing material 33.
- the bent portions B1 to B6 at least at the portion on the bending center side, the outer surface of the soot tube 32 and the outer surface of the core tube 31 are joined by the brazing material 33, so that the heat transfer performance can be improved.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06745832.3A EP1895256A4 (en) | 2005-05-16 | 2006-04-28 | HEAT EXCHANGER |
US11/913,408 US20090071639A1 (en) | 2005-05-16 | 2006-04-28 | Heat exchanger |
AU2006249165A AU2006249165B2 (en) | 2005-05-16 | 2006-04-28 | Heat exchanger |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005142432A JP3953074B2 (ja) | 2005-05-16 | 2005-05-16 | 熱交換器 |
JP2005-142432 | 2005-05-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006123535A1 true WO2006123535A1 (ja) | 2006-11-23 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/308973 WO2006123535A1 (ja) | 2005-05-16 | 2006-04-28 | 熱交換器 |
Country Status (7)
Country | Link |
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US (1) | US20090071639A1 (ja) |
EP (1) | EP1895256A4 (ja) |
JP (1) | JP3953074B2 (ja) |
KR (1) | KR20080011422A (ja) |
CN (1) | CN101175967A (ja) |
AU (1) | AU2006249165B2 (ja) |
WO (1) | WO2006123535A1 (ja) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3953075B2 (ja) * | 2005-05-16 | 2007-08-01 | ダイキン工業株式会社 | 熱交換器 |
GB0909221D0 (en) * | 2009-04-30 | 2009-07-15 | Eaton Fluid Power Gmbh | Heat exchanger |
US8640765B2 (en) | 2010-02-23 | 2014-02-04 | Robert Jensen | Twisted conduit for geothermal heating and cooling systems |
US9909783B2 (en) | 2010-02-23 | 2018-03-06 | Robert Jensen | Twisted conduit for geothermal heat exchange |
US9109813B2 (en) * | 2010-02-23 | 2015-08-18 | Robert Jensen | Twisted conduit for geothermal heating and cooling systems |
CN102198461A (zh) * | 2010-03-22 | 2011-09-28 | 浙江宏天铜业有限公司 | 螺旋型高齿翅片管的生产技术 |
JP4968375B2 (ja) * | 2010-09-30 | 2012-07-04 | ダイキン工業株式会社 | ヒートポンプ式給湯機 |
EP2796236A4 (en) * | 2011-12-22 | 2015-10-14 | Uacj Copper Tube Corp | METHOD FOR PRODUCING A HEAT EXCHANGER AND THEREFORE MANUFACTURED HEAT EXCHANGER |
US9989255B2 (en) * | 2014-07-25 | 2018-06-05 | General Electric Company | Liner assembly and method of turbulator fabrication |
JP6223298B2 (ja) * | 2014-07-31 | 2017-11-01 | 株式会社コベルコ マテリアル銅管 | 管内単相流用伝熱管 |
KR101708669B1 (ko) * | 2014-12-04 | 2017-03-08 | 엘지전자 주식회사 | 스테인리스강 코루게이트 전열관과 그를 갖는 흡수식 냉동기 및 그 제조 방법 |
EP3106816A1 (en) * | 2015-06-19 | 2016-12-21 | Bleckmann GmbH & Co. KG | Heat exchanging device and method therefore |
CN105466247B (zh) * | 2015-11-26 | 2017-05-17 | 张家港市大新毛纺有限公司 | 印染生产用废水再利用设备 |
US20180023895A1 (en) * | 2016-07-22 | 2018-01-25 | Trane International Inc. | Enhanced Tubular Heat Exchanger |
US20180106500A1 (en) * | 2016-10-18 | 2018-04-19 | Trane International Inc. | Enhanced Tubular Heat Exchanger |
IT201700105917A1 (it) * | 2017-09-21 | 2019-03-21 | Mario Bonino | Dispositivo per il riscaldamento o il raffreddamento di una tubazione per trasporto di prodotti fluidi o semifluidi |
ES2882218T3 (es) * | 2017-12-06 | 2021-12-01 | Mitsubishi Electric Corp | Intercambiador de calor, dispositivo de ciclo de refrigeración y método para fabricar el intercambiador de calor |
Citations (2)
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JP2002364989A (ja) * | 2001-06-07 | 2002-12-18 | Daikin Ind Ltd | 熱交換器の製造方法 |
JP2005076915A (ja) * | 2003-08-28 | 2005-03-24 | Kobe Steel Ltd | 複合伝熱管 |
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US3826304A (en) * | 1967-10-11 | 1974-07-30 | Universal Oil Prod Co | Advantageous configuration of tubing for internal boiling |
JP3664457B2 (ja) * | 1995-09-21 | 2005-06-29 | 臼井国際産業株式会社 | Egrガス冷却装置 |
MY121045A (en) * | 1998-03-13 | 2005-12-30 | Kobe Steel Ltd | Falling film type heat exchanger tube. |
JP2002228370A (ja) * | 2001-01-30 | 2002-08-14 | Daikin Ind Ltd | 熱交換器 |
JP3649181B2 (ja) * | 2001-07-16 | 2005-05-18 | ダイキン工業株式会社 | 熱交換器 |
JP2003161587A (ja) * | 2001-11-22 | 2003-06-06 | Hoshizaki Electric Co Ltd | 金属部材の接合構造体 |
JP2003214778A (ja) * | 2002-01-24 | 2003-07-30 | Sanyo Electric Co Ltd | 熱交換器及び熱交換器の製造方法並びにヒートポンプ式給湯機 |
JP3871581B2 (ja) * | 2002-02-26 | 2007-01-24 | 三洋電機株式会社 | ヒートポンプ式給湯機の熱交換器及びそれを用いたヒートポンプ式給湯機 |
JP3953075B2 (ja) * | 2005-05-16 | 2007-08-01 | ダイキン工業株式会社 | 熱交換器 |
-
2005
- 2005-05-16 JP JP2005142432A patent/JP3953074B2/ja active Active
-
2006
- 2006-04-28 CN CNA2006800169827A patent/CN101175967A/zh active Pending
- 2006-04-28 US US11/913,408 patent/US20090071639A1/en not_active Abandoned
- 2006-04-28 WO PCT/JP2006/308973 patent/WO2006123535A1/ja active Application Filing
- 2006-04-28 AU AU2006249165A patent/AU2006249165B2/en not_active Ceased
- 2006-04-28 KR KR1020077028213A patent/KR20080011422A/ko not_active Application Discontinuation
- 2006-04-28 EP EP06745832.3A patent/EP1895256A4/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002364989A (ja) * | 2001-06-07 | 2002-12-18 | Daikin Ind Ltd | 熱交換器の製造方法 |
JP2005076915A (ja) * | 2003-08-28 | 2005-03-24 | Kobe Steel Ltd | 複合伝熱管 |
Non-Patent Citations (1)
Title |
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See also references of EP1895256A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1895256A4 (en) | 2014-01-22 |
AU2006249165A1 (en) | 2006-11-23 |
US20090071639A1 (en) | 2009-03-19 |
EP1895256A1 (en) | 2008-03-05 |
JP3953074B2 (ja) | 2007-08-01 |
AU2006249165B2 (en) | 2009-09-03 |
CN101175967A (zh) | 2008-05-07 |
JP2006317114A (ja) | 2006-11-24 |
KR20080011422A (ko) | 2008-02-04 |
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