EP2282140B1 - Heat exchanger and hot-water supply device using same - Google Patents
Heat exchanger and hot-water supply device using same Download PDFInfo
- Publication number
- EP2282140B1 EP2282140B1 EP09729622.2A EP09729622A EP2282140B1 EP 2282140 B1 EP2282140 B1 EP 2282140B1 EP 09729622 A EP09729622 A EP 09729622A EP 2282140 B1 EP2282140 B1 EP 2282140B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hot water
- water supply
- heat exchanger
- spirally wound
- inner tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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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
- F28D7/16—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 in parallel spaced relation
- F28D7/163—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 in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/54—Water heaters for bathtubs or pools; Water heaters for reheating the water in bathtubs or pools
-
- 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
- F28D7/14—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 both tubes being bent
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/06—Heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/08—Storage tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/20—Heat consumers
Description
- The present invention relates to a heat exchanger for use as a water heat exchanger of, for example, a heat pump hot water supply system; and a hot water supply system using the same.
- A known heat pump hot water supply system, includes a heating unit which heats hot water supply water by a heat pump circuit; and a tank unit which stores hot water generated by the heating unit; and supplies the hot water from the tank unit to a bath and a kitchen (for example, see Japanese Patent Laid-Open Publication No.
2006-46877 - The heating unit of the hot water supply system includes a refrigerant circuit having a compressor, an evaporator, a water heat exchanger (gas cooler), and the like; and is configured to heat hot water supply water by the water heat exchanger and supply the hot water to the tank unit through a hot water pipe. Moreover, the water heat exchanger of the hot water supply system includes an inner tube which circulates a high temperature refrigerant of the heat pump circuit; and an outer tube in which the inner tube is arranged; and is configured to circulate hot water supply water between the inner tube and the outer tube and thereby exchange heat between the refrigerant and the hot water supply water through the inner tube.
- Meanwhile, the inner tube and the outer tube have a problem in that a so-called scale consisting primarily of calcium and magnesium contained in hot water supply water (e.g., calcium carbonate) is easily adhered thereto; and when a refrigerant and hot water supply water are in countercurrent flow, particularly a scale is strongly adhered to and deposited on the downstream side (high temperature side) of the hot water supply water and impedes water circulation. In light of this, conventionally, all of the outer tubes or only the downstream side thereof is formed by large-diameter tubes so as to sufficiently secure the circulation cross-sectional area between the inner tube and the outer tube so that scale deposit does not impede water circulation.
- This is shown in the European patent application
EP 0418534 A , which corresponds to the preamble ofclaim 1. - However, there is a problem that when all of the outer tubes or only the downstream side thereof is formed by large-diameter tubes, the kinds and costs of tubes used for making the outer tubes are increased and the productivity is reduced.
- In view of the above problem, the present invention has been made, and an object of the present invention is to provide a heat exchanger which can effectively prevent circulation blockage due to scale deposits without forming all of the outer tubes or only the downstream side thereof by large-diameter tubes; and a hot water supply system using the same.
- In order to achieve the above object, the present invention provides a heat exchanger comprising: a heat conductive inner tube which circulates a first heat medium; and an outer tube in which the inner tube is arranged, the heat exchanger circulating a second heat medium between the inner tube and the outer tube and thereby exchanging heat between the first heat medium and the second heat medium through the inner tube, wherein the number of inner tubes on a downstream side of the second heat medium is smaller than the number of inner tubes on an upstream side of the second heat medium, characterised in that; the diameter of outer tubes on an upstream side, in use, of the second heat medium is equal to the diameter of outer tubes on a downstream side, in use, of the second heat medium,
- More specifically, the number of inner tubes on the downstream side of the second heat medium is smaller than the number of inner tubes on the upstream side thereof. Therefore, the circulation cross-sectional area can be secured such that the circulation cross-sectional area between the outer tube and the inner tube on the downstream side of the second heat medium is larger than the circulation cross-sectional area between the outer tube and the inner tube on the upstream side thereof. Thus, for example, any scale deposited on the downstream side of the hot water supply water as the second heat medium does not impede circulation of the second heat medium. Moreover, the number of inner tubes on the upstream side of the second heat medium is larger than the number of inner tubes on the downstream side thereof, and thus the second heat medium is sufficiently heated by the inner tubes on the upstream side.
- According to the present invention, the circulation cross-sectional area can be secured such that the circulation cross-sectional area between the outer tube and the inner tube on the downstream side of the second heat medium is larger than the circulation cross-sectional area between the outer tube and the inner tube on the upstream side thereof, and thus the circulation blockage in the outer tube on the downstream side due to scale deposits can be effectively prevented without forming all of the outer tubes or only the downstream side thereof by large-diameter tubes. Therefore, the kinds and costs of tubes used for making the outer tubes are not increased and thus the productivity can be improved. In this case, the second heat medium can be sufficiently heated by the inner tubes on the upstream side of the second heat medium, and thus there is an advantage that the entire heat transfer efficiency is not lowered.
-
-
Figure 1 is a schematic block diagram of a heat pump hot water supply system illustrating an embodiment of the present invention; -
Figure 2 is a schematic side view of a first water heat exchanger; -
Figure 3 is a plan view of the first water heat exchanger; -
Figure 4 is a side view of the first water heat exchanger; -
Figure 5 is a cross-sectional view along line X-X inFigure 3 ; -
Figure 6 is a plan view of the first water heat exchanger illustrating another embodiment of the present invention; -
Figure 7 is a side view of the first water heat exchanger;
and -
Figure 8 is a cross-sectional view along line Y-Y inFigure 6 . -
Figures 1 to 5 illustrate an embodiment of the present invention:Figure 1 is a schematic block diagram of a heat pump hot water supply system;Figure 2 is a schematic block diagram of a first water heat exchanger;Figure 3 is a plan view thereof;Figure 4 is a side view thereof; andFigure 5 is a cross-sectional view along line X-X inFigure 3 . - The heat pump hot water supply system illustrated in the same figure includes a
refrigerant circuit 10 which circulates a refrigerant; a first hotwater supply circuit 20 which circulates hot water supply water; a second hotwater supply circuit 30 which circulates hot water supply water; abath circuit 40 which circulates bath water; a firstwater heat exchanger 50 which exchanges heat between the refrigerant of therefrigerant circuit 10 and the hot water supply water of the first hotwater supply circuit 20; and a secondwater heat exchanger 60 which exchanges heat between the hot water supply water of the second hotwater supply circuit 30 and the bath water of thebath circuit 40, wherein the firstwater heat exchanger 50 constitutes the heat exchanger of the present invention. - The
refrigerant circuit 10 is formed by connecting acompressor 11, an expansion valve 12, an air heat exchanger 13, and a firstwater heat exchanger 50; and is configured to circulate a refrigerant in the order of thecompressor 11 → the firstwater heat exchanger 50 → the expansion valve 12 → the air heat exchanger 13 → thecompressor 11. Note that the refrigerant used in therefrigerant circuit 10 is, for example, a natural refrigerant such as carbon dioxide. - The first hot
water supply circuit 20 is formed by connecting a hotwater storage tank 21, afirst pump 22, and the firstwater heat exchanger 50; and is configured to circulate hot water supply water in the order of the hotwater storage tank 21 → thefirst pump 22 → the firstwater heat exchanger 50 → the hotwater storage tank 21. The hotwater storage tank 21 is connected to awater supply pipe 23 and the second hotwater supply circuit 30; and the hot water supply water supplied from thewater supply pipe 23 is configured to circulate through the first hotwater supply circuit 20 via the hotwater storage tank 21. The hotwater storage tank 21 is connected to a bath 41 through aflow path 25 in which asecond pump 24 is provided so that the hot water supply water in the hotwater storage tank 21 is supplied to the bath 41 by thesecond pump 24. - The second hot
water supply circuit 30 is formed by connecting the hotwater storage tank 21, a third pump 31, and a secondwater heat exchanger 60; and is configured to circulate hot water supply water in the order of the hotwater storage tank 21 → the secondwater heat exchanger 60 → the third pump 31 → the hotwater storage tank 21. - The
bath circuit 40 is formed by connecting the bath 41, a fourth pump 42, and the secondwater heat exchanger 60; and is configured to circulate bath water in the order of the bath 41 → the fourth pump 42 → the secondwater heat exchanger 60 → the bath 41. - The first
water heat exchanger 50 is connected to therefrigerant circuit 10 and the first hotwater supply circuit 20; and is configured to exchange heat between a refrigerant as the first heat medium which circulates through therefrigerant circuit 10 and hot water supply water as the second heat medium which circulates through the first hotwater supply circuit 20. The firstwater heat exchanger 50 includes heat conductive first and secondinner tubes outer tubes inner tubes first end headers 55 to which one end of the first and secondinner tubes second end headers 56 to which one end of the first and secondouter tubes intermediate header 57 to which the other end of the first and secondinner tubes intermediate header 58 to which the other end of the first and secondouter tubes inner tubes outer tubes inner tubes 51 are arranged in the firstouter tube 53 and four secondinner tubes 52 are arranged in the secondouter tube 54. - Each
first end header 55 is connected to therefrigerant circuit 10 and is connected to a refrigerant inflow pipe 55a and a refrigerant outflow pipe 55b. In this case, thefirst end header 55 on the inflow side is connected to each firstinner tube 51 mutually in parallel; and thefirst end header 55 on the outflow side is connected to each secondinner tube 52 mutually in parallel. Eachsecond end header 56 is connected to the first hotwater supply circuit 20 and is connected to a hot water supply water inflow pipe 56a and a hot water supply water outflow pipe 55b. In this case, each secondinner tube 52 passes through thesecond end header 56 on the inflow side; and each firstinner tube 51 passes through thesecond end header 56 on the outflow side. - The first
intermediate header 57 includes a pair of header portions 57a; and a communication pipe 57b which allows each header portion 57a to be mutually communicated with each other. Each firstinner tube 51 is connected mutually in parallel to one header portion 57a; and each secondinner tube 52 is connected mutually in parallel to the other header portion 57a. In this case, the first and secondinner tubes intermediate header 57 in the same direction. The first and secondouter tubes intermediate header 58 in the same direction; and the first and secondinner tubes - Moreover, the first
inner tube 51 and the firstouter tube 53 are formed such that a spirally wound portion A1 which is spirally wound from outside to inside and a spirally wound portion A2 which is spirally wound from inside to outside are arranged mutually in two upper and lower stages; and the pipe conduit of each of the spirally wound portions A1 and A2 continues to each other by shifting the pipe conduit in up and down directions inside each of the spirally wound portions A1 and A2. The secondinner tube 52 and the secondouter tube 54 are formed such that the spirally wound portion A2 which is spirally wound from inside to outside and the spirally wound portion A1 which is spirally wound from outside to inside are arranged mutually in two upper and lower stages; and the pipe conduit of each of the spirally wound portions A1 and A2 continues to each other by shifting the pipe conduit in up and down directions inside each of the spirally wound portions A1 and A2. The spirally wound portions A1 and A2 of the firstinner tube 51 and the firstouter tube 53 are arranged above the spirally wound portions A1 and A2 of the secondinner tube 52 and the secondouter tube 54; and each of the spirally wound portions A1 and A2 are arranged in four upper and lower stages. - The second
water heat exchanger 60 is connected to the second hotwater supply circuit 30 and thebath circuit 40 and is configured to exchange heat between the hot water supply water of the second hotwater supply circuit 30 and the bath water of thebath circuit 40. - Moreover, the hot water supply system includes a
heating unit 70 having therefrigerant circuit 10 and the firstwater heat exchanger 50; and atank unit 80 having the hotwater storage tank 21, thefirst pump 22, thesecond pump 24, the second hotwater supply circuit 30, the fourth pump 42, and the secondwater heat exchanger 60, wherein theheating unit 70 is connected to thetank unit 80 through the first hotwater supply circuit 20. - In the above configured hot water supply system, the first
water heat exchanger 50 exchanges heat between a high temperature refrigerant of therefrigerant circuit 10 and a hot water supply water of the first hotwater supply circuit 20 and the hot water supply water is heated. In the firstwater heat exchanger 50, as illustrated by a dashed line arrow inFigure 2 , the refrigerant of therefrigerant circuit 10 flows into each firstinner tube 51 through onefirst end header 55. After circulation in each firstinner tube 51, the refrigerant flows into each secondinner tube 52 through the firstintermediate header 57. After circulation in each secondinner tube 52, the refrigerant flows outside through the otherfirst end header 55. In addition, as illustrated by a solid line arrow inFigure 2 , the hot water supply water of the hotwater supply circuit 20 flows into the secondouter tube 54 through onesecond end header 56. After circulation between the secondouter tube 54 and each secondinner tube 52, the hot water supply water flows into the firstouter tube 53 through the secondintermediate header 58. After circulation between the firstouter tube 53 and each firstinner tube 51, the hot water supply water flows outside through the othersecond end header 56. That is, in the firstwater heat exchanger 50, the refrigerant and the hot water supply water circulate in a mutually opposite direction. Note that the number of firstinner tubes 51 on the downstream side of the hot water supply water is smaller than the number of secondinner tubes 52 on the upstream side of the hot water supply water. Therefore, the circulation cross-sectional area is secured such that the circulation cross-sectional area between the firstouter tube 53 and each firstinner tube 51 is larger than the circulation cross-sectional area between the secondouter tube 54 and each secondinner tube 52. Thus, any scale deposited on the downstream side of the hot water supply water does not impede circulation of the hot water supply water. In addition, the number of secondinner tubes 52 on the upstream side of the hot water supply water is larger than the number of firstinner tubes 51 on the downstream side thereof and thus the hot water supply water is sufficiently heated by each secondinner tube 52. - As described above, according to the present embodiment, the number of first
inner tubes 51 on the downstream side of the hot water supply water is made smaller than the number of secondinner tubes 52 on the upstream side thereof. Therefore, the circulation cross-sectional area can be secured such that the circulation cross-sectional area between the firstouter tube 53 and each firstinner tube 51 is larger than the circulation cross-sectional area between the secondouter tube 54 and each secondinner tube 52. Thus, the circulation blockage in theouter tube 53 on the downstream side due to scale deposits can be effectively prevented without forming all of theouter tubes outer tube 53 on the downstream side by large-diameter tubes. Therefore, the kinds and costs of tubes used for making the outer tubles 53 and 54 are not increased and the productivity can be improved. In this case, the number of secondinner tubes 52 on the upstream side of the hot water supply water is larger than the number of firstinner tubes 51 on the downstream side thereof and the hot water supply water can be sufficiently heated by each secondinner tube 52. Thus, there is an advantage that the entire heat transfer efficiency is not lowered. - Moreover, the first and second
intermediate headers inner tube 51 and the firstouter tube 53; and the secondinner tube 52 and the secondouter tube 54 are connected in the same direction so that the pipe conduit is fold back at each of theintermediate headers inner tubes outer tubes water heat exchanger 50 can be compact. - Further, each of the
inner tubes outer tubes inner tubes outer tubes - Note that in the above described embodiment, the pipe conduit is shifted inside the adjacent spirally wound portions A1 and A2, but the pipe conduit may be shifted outside the spirally wound portions A1 and A2.
- Further, in the above described embodiment, the heat exchanger of the present invention is used as the first
water heat exchanger 50 of the heat pump hot water supply system, but the present invention can be applied to other heat exchangers for another application as long as the heat exchanger can exchange heat between the first heat medium and the second heat medium. -
Figures 6 to 8 illustrate another embodiment of the present invention:Figure 6 is a plan view of a first water heat exchanger;Figure 7 is a side view thereof; andFigure 8 is a cross-sectional view along line Y-Y inFigure 6 . Note that the same reference numerals or characters are assigned to the components which are the same as or similar to those of the above described embodiment. - In the present embodiment, of each of the spirally wound portions A1 and A2 arranged in four upper and lower stages, the spirally wound portions A1 and A2 up to the two stages from the bottom are formed so as to extend by a predetermined length L in one side direction (in a direction orthogonal to the direction in which each of the spirally wound portions A1 and A2 is arranged) than the other spirally wound portions A1 and A2. The extension portion 54a is arranged below the evaporator 13 in the
heating unit 70. More specifically, the extension portion 54a can be arranged in a space below the evaporator 13 which is dead space if the extension portion 54a is not provided. Thus, the length of the secondouter tube 54 can be increased by the length of the extension portion 54a, which can increase the capacity and thus can improve the capability of the firstwater heat exchanger 50. Note that in the above-described embodiment, the extension portion 54a of the firstwater heat exchanger 50 is arranged below the evaporator 13, but the extension portion 54a may be arranged below a device other than the evaporator 13. -
- 50
- First water heat exchanger
- 51, 52
- Inner tube
- 53, 54
- Outer tube
- 54a
- Extension portion
- 57
- First intermediate header
- 58
- Second intermediate header
- A1, A2
- Spirally wound portion
Claims (5)
- A heat exchanger comprising: a heat conductive inner tube (51, 52) which circulates a first heat medium; and an outer tube (53, 54) in which the inner tube (51, 52) is arranged, the heat exchanger circulating a second heat medium between the inner tube (51, 52) and the outer tube (53, 54) and thereby exchanging heat between the first heat medium and the second heat medium through the inner tube (51, 52), wherein the number of inner tubes (51) on a downstream side of the second heat medium is smaller than the number of inner tubes (52) on an upstream side of the second heat medium, characterised in that;
the diameter of outer tubes (54) on an upstream side, in use, of the
the diameter of outer tubes (54) on an upstream side, in use, of the second heat medium is equal to the diameter of outer tubes (53) on a downstream side, in use, of the second heat medium, - The heat exchanger according to claim 1, further comprising:a first intermediate header (57) which is provided between the inner tube (52) on the upstream side of the second heat medium and the inner tube (51) on the downstream side thereof, and to which the inner tube (52) on the upstream side and the inner tube (51) on the downstream side are connected in the same direction; anda second intermediate header (58) which is provided between the outer tube (54) on the upstream side of the second heat medium and the outer tube (53) on the downstream side thereof, and to which the outer tube (54) on the upstream side and the outer tube (53) on the downstream side are connected in the same direction.
- The heat exchanger according to claim 1, wherein the inner tube (51, 52) and the outer tube (53, 54) are spirally wound and are formed such that a spirally wound portion (A1) which is (A2) which is spirally wound from inside to outside are alternately arranged; and a pipe conduit continues between each of the spirally wound portions (A1, A2) by shifting the pipe conduit inside or outside the adjacent spirally wound portions (A1, A2) in a direction in which the spirally wound portions (A1, A2) are arranged.
- The heat exchanger according to claim 3, wherein some of the spirally wound portions (A1, A2) of the each of the spirally wound portions (A1, A2) are formed so as to extend in a direction orthogonal to the direction in which each of the spirally wound portions (A1, A2) is arranged than the other spirally wound portions (A1, A2).
- A hot water supply system having the heat exchanger according to any one of claims 1 to 4, which circulates hot water supply water as the second heat medium into the outer tube (53, 54) and circulates the first heat medium which heats hot water supply water into the inner tube (51, 52) of the heat exchanger.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008100377 | 2008-04-08 | ||
JP2008191924A JP5180716B2 (en) | 2008-04-08 | 2008-07-25 | Heat exchanger and hot water supply apparatus using the same |
PCT/JP2009/056811 WO2009125700A1 (en) | 2008-04-08 | 2009-04-01 | Heat exchanger and hot-water supply device using same |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2282140A1 EP2282140A1 (en) | 2011-02-09 |
EP2282140A4 EP2282140A4 (en) | 2014-01-01 |
EP2282140B1 true EP2282140B1 (en) | 2014-09-03 |
Family
ID=41161832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09729622.2A Not-in-force EP2282140B1 (en) | 2008-04-08 | 2009-04-01 | Heat exchanger and hot-water supply device using same |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2282140B1 (en) |
JP (1) | JP5180716B2 (en) |
AU (1) | AU2009234819B2 (en) |
WO (1) | WO2009125700A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010139101A (en) * | 2008-12-09 | 2010-06-24 | Sanden Corp | Heat exchanger and hot water supply device using the same |
JP5474483B2 (en) * | 2009-10-16 | 2014-04-16 | 株式会社日立製作所 | Intermediate heat exchanger and air-conditioning hot water supply system using the same |
JP5345038B2 (en) * | 2009-10-29 | 2013-11-20 | 東芝キヤリア株式会社 | Silver ion generator and heat pump hot water supply system |
JP5899679B2 (en) * | 2011-06-29 | 2016-04-06 | 株式会社ノーリツ | Heat exchanger and manufacturing method thereof |
CN111043882A (en) * | 2018-07-20 | 2020-04-21 | 青岛鑫众合贸易有限公司 | Heat pipe distribution design method for power station boiler waste heat system |
CN112254194B (en) * | 2020-10-13 | 2021-12-03 | 嘉兴尚坤科技有限公司 | Floor warms up with hot-water heating heat supply formula |
CN112254201B (en) * | 2020-10-13 | 2021-12-03 | 嘉兴尚坤科技有限公司 | Steam heating heat supply type ground heating floor |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3931685A1 (en) * | 1989-09-22 | 1991-04-04 | Borsig Babcock Ag | HEAT EXCHANGER FOR COOLING REACTION GAS |
JP2005127684A (en) * | 2003-10-27 | 2005-05-19 | Atago Seisakusho:Kk | Double tube type heat exchanger |
JP2005147564A (en) * | 2003-11-18 | 2005-06-09 | Toyo Radiator Co Ltd | Double pipe type heat exchanger |
JP4063237B2 (en) * | 2004-04-06 | 2008-03-19 | 松下電器産業株式会社 | Heat exchange device and heat pump water heater using the same |
JP4338591B2 (en) * | 2004-06-07 | 2009-10-07 | 株式会社ティラド | Heat exchanger distributor |
JP2006046877A (en) | 2004-08-09 | 2006-02-16 | Sanyo Electric Co Ltd | Heat pump type hot water supply/heating system |
JP2007218461A (en) * | 2006-02-15 | 2007-08-30 | Matsushita Electric Ind Co Ltd | Double tube type heat exchanger |
JP4699945B2 (en) * | 2006-06-09 | 2011-06-15 | 三菱電機株式会社 | Manufacturing method of spiral multistage heat exchanger and spiral multistage heat exchanger |
-
2008
- 2008-07-25 JP JP2008191924A patent/JP5180716B2/en not_active Expired - Fee Related
-
2009
- 2009-04-01 WO PCT/JP2009/056811 patent/WO2009125700A1/en active Application Filing
- 2009-04-01 AU AU2009234819A patent/AU2009234819B2/en not_active Ceased
- 2009-04-01 EP EP09729622.2A patent/EP2282140B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
AU2009234819B2 (en) | 2014-05-22 |
AU2009234819A1 (en) | 2009-10-15 |
JP2009270809A (en) | 2009-11-19 |
WO2009125700A1 (en) | 2009-10-15 |
EP2282140A1 (en) | 2011-02-09 |
JP5180716B2 (en) | 2013-04-10 |
EP2282140A4 (en) | 2014-01-01 |
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