EP2282140B1 - Heat exchanger and hot-water supply device using same - Google Patents

Heat exchanger and hot-water supply device using same Download PDF

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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
Application number
EP09729622.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2282140A4 (en
EP2282140A1 (en
Inventor
Yasushi Murakoshi
Hirotaka Kado
Naotaka Iwasawa
Miwako Ito
Syou Ishii
Toshihisa Tago
Hiroshi Ishida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanden Corp
Original Assignee
Sanden Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanden Corp filed Critical Sanden Corp
Publication of EP2282140A1 publication Critical patent/EP2282140A1/en
Publication of EP2282140A4 publication Critical patent/EP2282140A4/en
Application granted granted Critical
Publication of EP2282140B1 publication Critical patent/EP2282140B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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,
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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;
  • Figure 5 is a cross-sectional view along line X-X in Figure 3 .
  • the heat pump hot water supply system illustrated in the same figure includes a refrigerant circuit 10 which circulates a refrigerant; a first hot water supply circuit 20 which circulates hot water supply water; a second hot water supply circuit 30 which circulates hot water supply water; a bath circuit 40 which circulates bath water; a first water heat exchanger 50 which exchanges heat between the refrigerant of the refrigerant circuit 10 and the hot water supply water of the first hot water supply circuit 20; and a second water heat exchanger 60 which exchanges heat between the hot water supply water of the second hot water supply circuit 30 and the bath water of the bath circuit 40, wherein the first water heat exchanger 50 constitutes the heat exchanger of the present invention.
  • the refrigerant circuit 10 is formed by connecting a compressor 11, an expansion valve 12, an air heat exchanger 13, and a first water heat exchanger 50; and is configured to circulate a refrigerant in the order of the compressor 11 ⁇ the first water heat exchanger 50 ⁇ the expansion valve 12 ⁇ the air heat exchanger 13 ⁇ the compressor 11.
  • the refrigerant used in the refrigerant circuit 10 is, for example, a natural refrigerant such as carbon dioxide.
  • the first hot water supply circuit 20 is formed by connecting a hot water storage tank 21, a first pump 22, and the first water heat exchanger 50; and is configured to circulate hot water supply water in the order of the hot water storage tank 21 ⁇ the first pump 22 ⁇ the first water heat exchanger 50 ⁇ the hot water storage tank 21.
  • the hot water storage tank 21 is connected to a water supply pipe 23 and the second hot water supply circuit 30; and the hot water supply water supplied from the water supply pipe 23 is configured to circulate through the first hot water supply circuit 20 via the hot water storage tank 21.
  • the hot water storage tank 21 is connected to a bath 41 through a flow path 25 in which a second pump 24 is provided so that the hot water supply water in the hot water storage tank 21 is supplied to the bath 41 by the second pump 24.
  • the second hot water supply circuit 30 is formed by connecting the hot water storage tank 21, a third pump 31, and a second water heat exchanger 60; and is configured to circulate hot water supply water in the order of the hot water storage tank 21 ⁇ the second water heat exchanger 60 ⁇ the third pump 31 ⁇ the hot water storage tank 21.
  • the bath circuit 40 is formed by connecting the bath 41, a fourth pump 42, and the second water heat exchanger 60; and is configured to circulate bath water in the order of the bath 41 ⁇ the fourth pump 42 ⁇ the second water heat exchanger 60 ⁇ the bath 41.
  • the first water heat exchanger 50 is connected to the refrigerant circuit 10 and the first hot water supply circuit 20; and is configured to exchange heat between a refrigerant as the first heat medium which circulates through the refrigerant circuit 10 and hot water supply water as the second heat medium which circulates through the first hot water supply circuit 20.
  • the first water heat exchanger 50 includes heat conductive first and second inner tubes 51 and 52 each of which circulates a refrigerant; first and second outer tubes 53 and 54 in which the first and second inner tubes 51 and 52 are arranged respectively; a pair of first end headers 55 to which one end of the first and second inner tubes 51 and 52 is connected respectively; a pair of second end headers 56 to which one end of the first and second outer tubes 53 and 54 is connected respectively; a first intermediate header 57 to which the other end of the first and second inner tubes 51 and 52 is connected respectively; and a second intermediate header 58 to which the other end of the first and second outer tubes 53 and 54 is connected respectively, wherein each of the inner tubes 51 and 52 and each of the outer tubes 53 and 54 are spirally wound.
  • two first inner tubes 51 are arranged in the first outer tube 53 and four second inner tubes 52 are arranged in the second outer tube 54.
  • Each first end header 55 is connected to the refrigerant circuit 10 and is connected to a refrigerant inflow pipe 55a and a refrigerant outflow pipe 55b.
  • the first end header 55 on the inflow side is connected to each first inner tube 51 mutually in parallel; and the first end header 55 on the outflow side is connected to each second inner tube 52 mutually in parallel.
  • Each second end header 56 is connected to the first hot water supply circuit 20 and is connected to a hot water supply water inflow pipe 56a and a hot water supply water outflow pipe 55b.
  • each second inner tube 52 passes through the second end header 56 on the inflow side; and each first inner tube 51 passes through the second 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 first inner tube 51 is connected mutually in parallel to one header portion 57a; and each second inner tube 52 is connected mutually in parallel to the other header portion 57a.
  • the first and second inner tubes 51 and 52 are connected to the first intermediate header 57 in the same direction.
  • the first and second outer tubes 53 and 54 are connected to the second intermediate header 58 in the same direction; and the first and second inner tubes 51 and 52 pass therethrough respectively.
  • first inner tube 51 and the first outer 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 second inner tube 52 and the second outer 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 first inner tube 51 and the first outer tube 53 are arranged above the spirally wound portions A1 and A2 of the second inner tube 52 and the second outer 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 hot water supply circuit 30 and the bath circuit 40 and is configured to exchange heat between the hot water supply water of the second hot water supply circuit 30 and the bath water of the bath circuit 40.
  • the hot water supply system includes a heating unit 70 having the refrigerant circuit 10 and the first water heat exchanger 50; and a tank unit 80 having the hot water storage tank 21, the first pump 22, the second pump 24, the second hot water supply circuit 30, the fourth pump 42, and the second water heat exchanger 60, wherein the heating unit 70 is connected to the tank unit 80 through the first hot water supply circuit 20.
  • the first water heat exchanger 50 exchanges heat between a high temperature refrigerant of the refrigerant circuit 10 and a hot water supply water of the first hot water supply circuit 20 and the hot water supply water is heated.
  • the refrigerant of the refrigerant circuit 10 flows into each first inner tube 51 through one first end header 55. After circulation in each first inner tube 51, the refrigerant flows into each second inner tube 52 through the first intermediate header 57. After circulation in each second inner tube 52, the refrigerant flows outside through the other first end header 55.
  • the hot water supply water of the hot water supply circuit 20 flows into the second outer tube 54 through one second end header 56.
  • the hot water supply water flows into the first outer tube 53 through the second intermediate header 58.
  • the hot water supply water flows outside through the other second end header 56. That is, in the first water heat exchanger 50, the refrigerant and the hot water supply water circulate in a mutually opposite direction. Note that the number of first inner tubes 51 on the downstream side of the hot water supply water is smaller than the number of second inner tubes 52 on the upstream side of the hot water supply water.
  • the circulation cross-sectional area is secured such that the circulation cross-sectional area between the first outer tube 53 and each first inner tube 51 is larger than the circulation cross-sectional area between the second outer tube 54 and each second inner tube 52.
  • any scale deposited on the downstream side of the hot water supply water does not impede circulation of the hot water supply water.
  • the number of second inner tubes 52 on the upstream side of the hot water supply water is larger than the number of first inner tubes 51 on the downstream side thereof and thus the hot water supply water is sufficiently heated by each second inner tube 52.
  • the number of first inner tubes 51 on the downstream side of the hot water supply water is made smaller than the number of second inner 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 first outer tube 53 and each first inner tube 51 is larger than the circulation cross-sectional area between the second outer tube 54 and each second inner tube 52.
  • the circulation blockage in the outer tube 53 on the downstream side due to scale deposits can be effectively prevented without forming all of the outer tubes 53 and 54 or the only 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.
  • the number of second inner tubes 52 on the upstream side of the hot water supply water is larger than the number of first inner tubes 51 on the downstream side thereof and the hot water supply water can be sufficiently heated by each second inner tube 52.
  • the entire heat transfer efficiency is not lowered.
  • first and second intermediate headers 57 and 58 are provided between the upstream side and the downstream side of the hot water supply water, to which the first inner tube 51 and the first outer tube 53; and the second inner tube 52 and the second outer tube 54 are connected in the same direction so that the pipe conduit is fold back at each of the intermediate headers 57 and 58. Therefore, each of the inner tubes 51 and 52 and each of the outer tubes 53 and 54 are not too lengthy and the entire first water heat exchanger 50 can be compact.
  • each of the inner tubes 51 and 52 and each of the outer tubes 53 and 54 are spirally wound and are formed such that the spirally wound portion A1 which is spirally wound from outside to inside and the spirally wound portion A2 which is spirally wound from inside to outside are arranged mutually in up and down directions; 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 adjacent spirally wound portions A1 and A2.
  • each of the inner tubes 51 and 52 and each of the outer tubes 53 and 54 with a large length can be effectively spirally wound and very advantageous to miniaturization.
  • 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.
  • 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;
  • Figure 8 is a cross-sectional view along line Y-Y in Figure 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.
  • 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.
  • the length of the second outer 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 first water heat exchanger 50.
  • the extension portion 54a of the first water 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.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Details Of Fluid Heaters (AREA)
EP09729622.2A 2008-04-08 2009-04-01 Heat exchanger and hot-water supply device using same Not-in-force EP2282140B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2008100377 2008-04-08
JP2008191924A JP5180716B2 (ja) 2008-04-08 2008-07-25 熱交換器及びこれを用いた給湯装置
PCT/JP2009/056811 WO2009125700A1 (ja) 2008-04-08 2009-04-01 熱交換器及びこれを用いた給湯装置

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 (ja)
JP (1) JP5180716B2 (ja)
AU (1) AU2009234819B2 (ja)
WO (1) WO2009125700A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010139101A (ja) * 2008-12-09 2010-06-24 Sanden Corp 熱交換器及びこれを用いた給湯装置
JP5474483B2 (ja) * 2009-10-16 2014-04-16 株式会社日立製作所 中間熱交換器及びそれを用いた空調給湯システム
JP5345038B2 (ja) * 2009-10-29 2013-11-20 東芝キヤリア株式会社 銀イオン発生装置及びヒートポンプ給湯システム
JP5899679B2 (ja) * 2011-06-29 2016-04-06 株式会社ノーリツ 熱交換器及びその製造方法
CN111043882A (zh) * 2018-07-20 2020-04-21 青岛鑫众合贸易有限公司 一种电站锅炉余热系统的热管分布设计方法
CN112254194B (zh) * 2020-10-13 2021-12-03 嘉兴尚坤科技有限公司 一种水暖供热式地暖地板
CN112254201B (zh) * 2020-10-13 2021-12-03 嘉兴尚坤科技有限公司 一种汽暖供热式地暖地板

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Publication number Priority date Publication date Assignee Title
DE3931685A1 (de) * 1989-09-22 1991-04-04 Borsig Babcock Ag Waermetauscher zum kuehlen von reaktionsgas
JP2005127684A (ja) * 2003-10-27 2005-05-19 Atago Seisakusho:Kk 二重管式熱交換器
JP2005147564A (ja) * 2003-11-18 2005-06-09 Toyo Radiator Co Ltd ２重管式熱交換器
JP4063237B2 (ja) * 2004-04-06 2008-03-19 松下電器産業株式会社 熱交換装置及びそれを用いたヒートポンプ給湯装置
JP4338591B2 (ja) * 2004-06-07 2009-10-07 株式会社ティラド 熱交換器のディストリビュータ
JP2006046877A (ja) 2004-08-09 2006-02-16 Sanyo Electric Co Ltd ヒートポンプ式給湯暖房装置
JP2007218461A (ja) * 2006-02-15 2007-08-30 Matsushita Electric Ind Co Ltd ２重管式熱交換器
JP4699945B2 (ja) * 2006-06-09 2011-06-15 三菱電機株式会社 渦巻き多段形熱交換器の製造方法及び渦巻き多段形熱交換器

Also Published As

Publication number Publication date
JP5180716B2 (ja) 2013-04-10
EP2282140A4 (en) 2014-01-01
EP2282140A1 (en) 2011-02-09
JP2009270809A (ja) 2009-11-19
AU2009234819A1 (en) 2009-10-15
AU2009234819B2 (en) 2014-05-22
WO2009125700A1 (ja) 2009-10-15

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