JP2004060906A - Heat exchanger, and heat pump type water heater equipped with the same - Google Patents

Heat exchanger, and heat pump type water heater equipped with the same Download PDF

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JP2004060906A
JP2004060906A JP2002215962A JP2002215962A JP2004060906A JP 2004060906 A JP2004060906 A JP 2004060906A JP 2002215962 A JP2002215962 A JP 2002215962A JP 2002215962 A JP2002215962 A JP 2002215962A JP 2004060906 A JP2004060906 A JP 2004060906A
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heat exchanger
heat
heat transfer
transfer tube
water heater
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JP3913629B2 (en
Inventor
Nobuyuki Kasukawa
粕川　信幸
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Sanyo Electric Co Ltd
Sanyo Electric Air Conditioning Co Ltd
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Sanyo Electric Co Ltd
Sanyo Electric Air Conditioning Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Fluid Heaters (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To miniaturize a heat pump type water heater by improving shape of a refrigerant-water (refrigerant-heat exchange liquid) heat exchanger. <P>SOLUTION: This heat exchanger 3 is provided with a first heat exchanger tube 7 having a flow passage wherein the first fluid flows and a second heat exchanger tube 12 having a flow passage wherein the second fluid flows. The first heat exchanger tube 7 is embedded in the second heat exchanger tube 12 for integration to form a combination tube 24, and this combination tube 24 is spirally folded, and this spiral heat exchanger main body is formed into a flat shape. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、ヒートポンプ給湯機に関し、特にヒートポンプ給湯機内に配設される熱交換器に関する。
【０００２】
【従来の技術】
従来、給湯機としてはガスや電気ヒータを熱源とするものが大勢的であるが、近年エネルギ利用の効率化の要望や、ガスや電気ヒータによる火災等の防止の観点からヒートポンプ給湯機が提案されている。
【０００３】
このようなヒートポンプ給湯機は、例えば、圧縮機、蒸発器、膨張弁、及び熱交換器等を有するヒートポンプユニット（以下ＨＰユニットという）と、貯湯タンクを有するタンクユニットとに分離された２つのユニットを備えており、凝縮器で冷媒と水とを熱交換させて貯湯し、この湯を供給できるようにしている。
【０００４】
以下、前記凝縮器を熱交換器という。かかる熱交換器の構成例として例えば特開２００２−１０７０６９号公報に、図８に示すようなものが開示されている。この熱交換器５１は、冷媒が流動する冷媒伝熱管（第１伝熱管）５２、水が流動する水伝熱管（第２伝熱管）５３、及びこれらを支持する図示しない支持部材等により構成されている。これら冷媒伝熱管５２及び水伝熱管５３は、外観が扁平になるように形成されており、それぞれ冷媒と水とが内部を流動するようになっている。そして、冷媒伝熱管５２と水伝熱管５３との扁平面を合わせて螺旋状に巻き、支持部材によりこれらを支持している。
【０００５】
図９は、前記熱交換器を内部に配置したＨＰユニットの内部構造を示す正面図である。このような構成の熱交換器５１は、螺旋状に積み重ねられて円筒形をしているため、広い底面積と一定の高さを有し、ＨＰユニット５４内の大きなスペースを占めている。
【０００６】
【発明が解決しようとする課題】
ところで、前記ＨＰユニット５４を含むヒートポンプ給湯機は、従来から小形化することを要望されており、大きなスペースを占める熱交換器５１がＨＰユニット５４の外形寸法を大きくする一因になっていた。
【０００７】
本発明は上述のような従来の課題を解消するために成されたものであり、冷媒対水（または冷媒対被熱交換液）熱交換器の形状を改良し、ヒートポンプ給湯機の小形化を図ることを目的とする。
【０００８】
【課題を解決するための手段】
上記課題を解決するため、請求項１に記載の発明は、第１流体が流動する流路を有する第１伝熱管と、第２流体が流動する流路を有する第２伝熱管とを備え、この第２伝熱管に第１伝熱管を埋設一体化して結合管と成し、この結合管を渦巻き状に折曲形成して構成した熱交換器であることを特徴とする。
【０００９】
請求項２に記載の発明は、第１流体が流動する流路を有する第１伝熱管と、第２流体が流動する流路を有する第２伝熱管とを備え、この第２伝熱管に第１伝熱管を埋設一体化して結合管と成し、この結合管を蛇行状に折曲形成して構成した熱交換器であることを特徴とする。
【００１０】
請求項３に記載の発明は、請求項１または２に記載の熱交換器において、前記渦巻き状の熱交換器本体を平面形状を呈するように形成したことを特徴とする。
【００１１】
請求項４に記載の発明は、請求項１または２に記載の熱交換器において、前記渦巻き状の熱交換器本体を曲面形状を呈するように形成したことを特徴とする。
【００１２】
請求項５に記載の発明は、請求項１または２に記載の前記熱交換器を、外装ケースの側板内側に配設したヒートポンプ給湯機であることを特徴とする。
【００１３】
請求項６に記載の発明は、請求項１または２に記載の前記熱交換器を、外装ケースの底板内側または天板内側に配設したヒートポンプ給湯機であることを特徴とする。
【００１４】
請求項７に記載の発明は、請求項１または２に記載の前記熱交換器を、外装ケース内に設けられた隔壁面に沿って配設したヒートポンプ給湯機であることを特徴とする。
【００１５】
請求項８に記載の発明は、請求項４に記載の前記熱交換器を、貯湯タンクの外周面に沿って配設したヒートポンプ給湯機であることを特徴とする。
【００１６】
【発明の実施の形態】
〔実施形態１〕以下、本発明の実施形態１を図面に基づいて説明する。図１は本発明の実施形態１におけるヒートポンプ給湯機の回路図である。
【００１７】
図１において、ヒートポンプ給湯機１は、冷媒を圧縮する圧縮機２、冷媒と水とを熱交換させる冷媒対水熱交換器（以下、単に熱交換器という）３、冷媒を膨張させる膨張弁４、冷媒と外気等とを熱交換させる蒸発器５、冷媒の気液分離を行うアキュームレータ６等を有し、これらの構成部品を順次冷媒伝熱管（第１伝熱管）７にて接続してなる冷媒循環回路Ａと、貯湯タンク８、循環ポンプ９、及び前記熱交換器３を有し、これらの構成部品を順次水伝熱管（第２伝熱管）１２にて接続してなる給湯回路Ｂとから構成されている。
【００１８】
また、このヒートポンプ給湯機１は、ＨＰユニット１３とタンクユニット１４との２つのユニットを備え、ＨＰユニット１３には、前記圧縮機２、熱交換器３、膨張弁４、及び蒸発器５等を収容し、タンクユニット１４には、貯湯タンク８及び循環ポンプ９等を収容している。
【００１９】
図２は熱交換器の概略構成図、図３は熱交換器のＡ−Ａ´断面図である。
【００２０】
図２、図３において、前記熱交換器３内は、冷媒が流動する冷媒伝熱管（第１伝熱管）７と、水が流動する水伝熱管（第２伝熱管）１２とを有し、これらを支持する図示しない支持部材等により構成されている。前記熱交換器３は、３本の冷媒伝熱管７、７、７と、この冷媒伝熱管７より内径の大きな水伝熱管１２とを有し、これら伝熱管７、１２は、銅のように加工性及び熱伝導性に優れた部材を材料として作製されている。水伝熱管１２は、両端部が縮径されるとともに、両端部を除く略全長にわたって３本の冷媒伝熱管７、７、７を埋設している。この水伝熱管１２と冷媒伝熱管７、７、７とを一体化した結合管２４は、所定の長さを有し、図４に示すように、渦巻き状に巻加工され、渦巻き状の熱交換器本体が平面形状を呈するように形成される。この熱交換器本体は、巻加工を調整することにより円形や長円形にすることができ、さらに長円形の長径と短径を設定することができる。そして熱交換器本体が支持部材（図示せず）により支持される。
【００２１】
図４は前記熱交換器を備えたヒートポンプユニットの内部構造を示す正面図、図５はその側面図である。
【００２２】
図４において、ＨＰユニット１３の外装ケース１５内には略中央に隔壁１６が設けられ、この隔壁１６の左側には、送風機１７及び蒸発器５等を有する蒸発器室２１、右側には圧縮機２、アキュームレータ６等を有する機械室２２が設けられる。機械室２２の右端には、右側板の内側に沿って熱交換器３が配設されており、この熱交換器３は、図５に示すように、外装ケース１５の右側板にほぼ内接する円盤状をし、全体に断熱材が被せられている。
【００２３】
このように本発明の熱交換器３は、渦巻き状に折曲形成したことにより、従来の円筒形の熱交換器５１（図７、図８参照）に比べ、容積を小さくすることができ、また、収納するスペースの形状に合わせて形成しているので、従来の円筒形の熱交換器５１に比べ、ＨＰユニット１３内の収納率を上げて収納できる。これにより、ＨＰユニット１３の小形化を図ることができる。
【００２４】
以上実施形態１に基づいて、本発明を説明したが、本発明はこれに限定されるものではない。本実施形態１では、熱交換器３を、ＨＰユニット１３の右側板の内側スペース形状に合わせて作製しこのスペースに配置しているが、熱交換器を蒸発器室２１の底面内側または天面内側形状に合わせて作製し、この底面内側または天面内側に配置するようにしても良い。また、熱交換器を隔壁１６の側面形状に合わせて作製してそこに配置するようにしても良い。
【００２５】
〔実施形態２〕以下、本発明の実施形態２を図面に基づいて説明する。図７は、実施形態２におけるヒートポンプ給湯機である。なお、実施形態１と同一の構成要素には同一の符号を付してその詳細な説明は省略する。
【００２６】
図７において、ヒートポンプ給湯機は、実施形態１におけるＨＰユニット１３とタンクユニット１４とを一体にした給湯ユニット３２を備えている。この給湯ユニット３２は、圧縮機２、熱交換器３３、膨張弁、蒸発器５、貯湯タンク８、及び循環ポンプ９を有し、これらの構成部品が外装ケース３４内に収容されている。この外装ケース３４には、上室３５Ａと下室３５Ｂを仕切る仕切り壁３６、ならびに底板としての架台３７が設けられており、上室３５Ａ内には圧縮機２、蒸発器５、及びこの蒸発器５に送風する送風機１７等が配置され、下室３５Ｂ内には熱交換器３３、貯湯タンク８、循環ポンプ９等が配置されている。
【００２７】
前記貯湯タンク８は、上下部が球面形をした縦長円筒形をしており、支持脚８Ａを介して架台３７に載置固定されている。
【００２８】
前記熱交換器３３は、結合管２４を渦巻き状に巻回して作製され、この渦巻き状の熱交換器本体が貯湯タンク８底面部の球面形状に合わせた曲面形状を呈するように形成されている。そして、貯湯タンク８の下方に支持部材３３Ａを介して架台３７に載置固定されている。
【００２９】
このように熱交換器３３を貯湯タンク８の形状に合わせて形成したことにより、貯湯タンク８の下方のスペースに配置してスペースを有効に利用しているので、外装ケース３４内の収納性を向上させることができる。これにより、給湯ユニット３２の小形化を図ることができる。
【００３０】
以上実施形態２に基づいて、本発明を説明したが、本発明はこれに限定されるものではない。実施形態２においては、熱交換器３３を貯湯タンク８の下方のスペースに配設しているが、貯湯タンク８外周面の曲面形状に合わせて熱交換器本体を曲面形状に形成し、貯湯タンク８の外周面に配設するようにしても良い。
【００３１】
実施形態１及び２において、熱交換器３、３３は、１本の水伝熱管１２と３本の冷媒伝熱管７、７、７を埋設一体化した結合管２４を使用して作製されているが、この結合管は、例えば１本の水伝熱管１２と２本の冷媒伝熱管７、７を埋設一体化したものであっても良く、それぞれの伝熱管の本数は限定されるものではない。
【００３２】
また、熱交換器３、３３は、渦巻き状に折曲加工しているが、例えば、図６に示すように、蛇行状に折曲加工しても良い。
【００３３】
また、熱交換器３、３３に冷媒（第１流体）と水（第２流体）とが循環してこれらの間で熱交換する場合について説明しているが、本発明は「冷媒」、「水」により限定を受けるものではないことを付言する。
【００３４】
【発明の効果】
以上説明したように、本発明によれば、ヒートポンプ給湯機の冷媒対水熱交換器を渦巻き状、あるいは蛇行状に折曲形成したことにより、従来の円筒形の熱交換器に比べ容積を小さくすることができるとともに、収納するスペースの形状に合わせて形成できるので、ヒートポンプ給湯機のユニット内に収納しやすくし、且つ収納率を向上させることができる。これにより、ヒートポンプ給湯機のユニットの小形化を図ることができる。
【００３５】
また、冷媒対水熱交換器本体を、給湯タンク等ユニット内の構造物の外周形状に合わせて形成したことにより、ユニット内のスペースを無駄なく活用することができ、ユニットの小形化を図ることができる。
【００３６】
そして、ヒートポンプ給湯機が小形化されることにより、ヒートポンプ給湯機の設置条件を良くして設置場所の選定をしやすくすることができる。
【図面の簡単な説明】
【図１】本発明の実施形態１におけるヒートポンプ給湯機の回路図である。
【図２】図１のヒートポンプユニットの内部構造を示す正面図である。
【図３】図１のヒートポンプユニットの内部構造を示す側面図である。
【図４】図１の熱交換器の概略構成図である。
【図５】図４の熱交換器のＡ−Ａ´断面図である。
【図６】図４と別の形態における熱交換器の概略構成図である。
【図７】本発明の実施形態２における室外機の内部構造を示す正面図である。
【図８】従来の熱交換器の斜視図である。
【図９】従来の熱交換器を内部に配置したヒートポンプユニットの一例を示す正面図である。
【符号の説明】
１　ヒートポンプ給湯機
３、３３　冷媒対水熱交換器
７　　冷媒伝熱管（第１伝熱管）
８　貯湯タンク
１２　　水伝熱管（第２伝熱管）
１３　ヒートポンプユニット（ＨＰユニット）
１４　タンクユニット
１６　隔壁
２４　結合管
３２　給湯ユニット[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a heat pump water heater, and more particularly, to a heat exchanger provided in the heat pump water heater.
[0002]
[Prior art]
Conventionally, a large number of hot water heaters use a gas or electric heater as a heat source. However, in recent years, a heat pump hot water heater has been proposed from the viewpoint of demand for more efficient use of energy and prevention of a fire or the like by the gas or electric heater. ing.
[0003]
Such a heat pump water heater is, for example, two units separated into a heat pump unit (hereinafter referred to as an HP unit) having a compressor, an evaporator, an expansion valve, a heat exchanger, and the like, and a tank unit having a hot water storage tank. The refrigerant is exchanged heat with water in a condenser to store hot water, so that the hot water can be supplied.
[0004]
Hereinafter, the condenser is referred to as a heat exchanger. As a configuration example of such a heat exchanger, for example, one shown in FIG. 8 is disclosed in Japanese Patent Application Laid-Open No. 2002-107069. The heat exchanger 51 includes a refrigerant heat transfer tube (first heat transfer tube) 52 through which a refrigerant flows, a water heat transfer tube (second heat transfer tube) 53 through which water flows, and a support member (not shown) that supports these. ing. The refrigerant heat transfer tube 52 and the water heat transfer tube 53 are formed so as to be flat in appearance, and the refrigerant and the water flow inside the respective tubes. Then, the flat surfaces of the refrigerant heat transfer tube 52 and the water heat transfer tube 53 are spirally wound together and supported by a support member.
[0005]
FIG. 9 is a front view showing the internal structure of the HP unit in which the heat exchanger is disposed. Since the heat exchanger 51 having such a configuration is spirally stacked and has a cylindrical shape, it has a large bottom area and a certain height, and occupies a large space in the HP unit 54.
[0006]
[Problems to be solved by the invention]
By the way, the heat pump water heater including the HP unit 54 has conventionally been required to be downsized, and the heat exchanger 51 occupying a large space has been a factor in increasing the external dimensions of the HP unit 54.
[0007]
The present invention has been made in order to solve the conventional problems as described above, and has improved the shape of a refrigerant-to-water (or refrigerant-to-heat-exchanged liquid) heat exchanger to reduce the size of a heat pump water heater. The purpose is to aim.
[0008]
[Means for Solving the Problems]
In order to solve the above problem, the invention according to claim 1 includes a first heat transfer tube having a flow path through which a first fluid flows, and a second heat transfer tube having a flow path through which a second fluid flows, The first heat transfer tube is embedded in and integrated with the second heat transfer tube to form a connection tube, and the connection tube is formed by spirally bending the heat exchanger.
[0009]
The invention according to claim 2 includes a first heat transfer tube having a flow path through which the first fluid flows, and a second heat transfer tube having a flow path through which the second fluid flows. (1) The heat exchanger is characterized in that the heat exchanger is formed by burying and integrating a heat transfer tube to form a connection tube, and forming the connection tube in a meandering shape.
[0010]
According to a third aspect of the present invention, in the heat exchanger according to the first or second aspect, the spiral heat exchanger body is formed to have a planar shape.
[0011]
According to a fourth aspect of the present invention, in the heat exchanger according to the first or second aspect, the spiral heat exchanger main body is formed to have a curved shape.
[0012]
The invention according to claim 5 is a heat pump water heater in which the heat exchanger according to claim 1 or 2 is disposed inside a side plate of an outer case.
[0013]
The invention according to claim 6 is a heat pump water heater in which the heat exchanger according to claim 1 or 2 is disposed inside a bottom plate or a top plate of an outer case.
[0014]
The invention according to claim 7 is a heat pump water heater in which the heat exchanger according to claim 1 or 2 is disposed along a partition wall surface provided in an outer case.
[0015]
The invention according to claim 8 is a heat pump water heater in which the heat exchanger according to claim 4 is arranged along the outer peripheral surface of a hot water storage tank.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a circuit diagram of a heat pump water heater according to Embodiment 1 of the present invention.
[0017]
In FIG. 1, a heat pump water heater 1 includes a compressor 2 for compressing a refrigerant, a refrigerant-to-water heat exchanger (hereinafter simply referred to as a heat exchanger) 3 for exchanging heat between the refrigerant and water, and an expansion valve 4 for expanding the refrigerant. , An evaporator 5 for exchanging heat between the refrigerant and the outside air and the like, an accumulator 6 for performing gas-liquid separation of the refrigerant, and the like. These components are sequentially connected by a refrigerant heat transfer tube (first heat transfer tube) 7. A hot water supply circuit B having a refrigerant circulation circuit A, a hot water storage tank 8, a circulation pump 9, and the heat exchanger 3 and connecting these components in order by a water heat transfer pipe (second heat transfer pipe) 12; It is composed of
[0018]
The heat pump water heater 1 includes two units, an HP unit 13 and a tank unit 14. The HP unit 13 includes the compressor 2, the heat exchanger 3, the expansion valve 4, the evaporator 5, and the like. The hot water storage tank 8 and the circulation pump 9 are housed in the tank unit 14.
[0019]
FIG. 2 is a schematic configuration diagram of the heat exchanger, and FIG. 3 is a sectional view of the heat exchanger taken along line AA ′.
[0020]
2 and 3, the heat exchanger 3 has a refrigerant heat transfer tube (first heat transfer tube) 7 through which a refrigerant flows, and a water heat transfer tube (second heat transfer tube) 12 through which water flows, It is composed of a support member (not shown) that supports these. The heat exchanger 3 has three refrigerant heat transfer tubes 7, 7, 7 and a water heat transfer tube 12 having an inner diameter larger than that of the refrigerant heat transfer tubes 7, and these heat transfer tubes 7, 12 are made of copper. It is manufactured using a member excellent in processability and thermal conductivity as a material. Both ends of the water heat transfer tube 12 are reduced in diameter, and three refrigerant heat transfer tubes 7, 7, 7 are embedded over substantially the entire length excluding both ends. The connecting tube 24 in which the water heat transfer tube 12 and the refrigerant heat transfer tubes 7, 7, 7 are integrated has a predetermined length, and is spirally wound as shown in FIG. The exchanger body is formed to have a planar shape. This heat exchanger main body can be formed into a circular shape or an oval shape by adjusting the winding process, and the major and minor diameters of the oval can be set. Then, the heat exchanger body is supported by a support member (not shown).
[0021]
FIG. 4 is a front view showing the internal structure of a heat pump unit provided with the heat exchanger, and FIG. 5 is a side view thereof.
[0022]
In FIG. 4, a partition 16 is provided substantially at the center in an outer case 15 of the HP unit 13, an evaporator chamber 21 having a blower 17 and an evaporator 5, and a compressor on the right. 2. A machine room 22 having the accumulator 6 and the like is provided. At the right end of the machine room 22, a heat exchanger 3 is provided along the inside of the right plate, and this heat exchanger 3 is substantially inscribed in the right plate of the outer case 15, as shown in FIG. It has a disk shape and is entirely covered with heat insulating material.
[0023]
As described above, since the heat exchanger 3 of the present invention is formed in a spiral shape, the volume can be reduced as compared with the conventional cylindrical heat exchanger 51 (see FIGS. 7 and 8). In addition, since it is formed according to the shape of the storage space, the storage ratio in the HP unit 13 can be increased compared to the conventional cylindrical heat exchanger 51. Thereby, the size of the HP unit 13 can be reduced.
[0024]
Although the present invention has been described based on Embodiment 1, the present invention is not limited to this. In the first embodiment, the heat exchanger 3 is manufactured according to the inner space shape of the right side plate of the HP unit 13 and is arranged in this space. It may be manufactured according to the inside shape and arranged inside the bottom surface or the top surface. Further, the heat exchanger may be manufactured according to the side surface shape of the partition 16 and disposed there.
[0025]
Embodiment 2 Hereinafter, Embodiment 2 of the present invention will be described with reference to the drawings. FIG. 7 shows a heat pump water heater according to the second embodiment. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.
[0026]
In FIG. 7, the heat pump water heater includes a water heater unit 32 in which the HP unit 13 and the tank unit 14 in the first embodiment are integrated. The hot water supply unit 32 includes a compressor 2, a heat exchanger 33, an expansion valve, an evaporator 5, a hot water storage tank 8, and a circulation pump 9, and these components are accommodated in an outer case 34. The outer case 34 is provided with a partition wall 36 for separating the upper chamber 35A and the lower chamber 35B, and a pedestal 37 as a bottom plate. The compressor 2, the evaporator 5, and the evaporator 5 are provided in the upper chamber 35A. An air blower 17 and the like for blowing air to 5 are arranged, and a heat exchanger 33, a hot water storage tank 8, a circulation pump 9 and the like are arranged in the lower chamber 35B.
[0027]
The hot water storage tank 8 has a vertically long cylindrical shape having a spherical upper and lower portion, and is mounted and fixed on a gantry 37 via support legs 8A.
[0028]
The heat exchanger 33 is manufactured by spirally winding the coupling pipe 24, and is formed such that the spiral heat exchanger main body has a curved shape conforming to the spherical shape of the bottom surface of the hot water storage tank 8. . And it is mounted and fixed on the gantry 37 below the hot water storage tank 8 via the support member 33A.
[0029]
Since the heat exchanger 33 is formed in accordance with the shape of the hot water storage tank 8 as described above, the heat exchanger 33 is disposed in a space below the hot water storage tank 8 to effectively utilize the space. Can be improved. Thereby, the size of the hot water supply unit 32 can be reduced.
[0030]
Although the present invention has been described based on Embodiment 2, the present invention is not limited to this. In the second embodiment, the heat exchanger 33 is provided in the space below the hot water storage tank 8, but the heat exchanger body is formed into a curved shape in accordance with the curved shape of the outer peripheral surface of the hot water storage tank 8, and the hot water storage tank is formed. 8 may be provided on the outer peripheral surface.
[0031]
In the first and second embodiments, the heat exchangers 3 and 33 are manufactured using the connecting pipe 24 in which one water heat transfer tube 12 and three refrigerant heat transfer tubes 7, 7, 7 are embedded and integrated. However, the connecting pipe may be, for example, one in which one water heat transfer pipe 12 and two refrigerant heat transfer pipes 7 are embedded and integrated, and the number of each heat transfer pipe is not limited. .
[0032]
Although the heat exchangers 3 and 33 are bent in a spiral shape, for example, as shown in FIG. 6, they may be bent in a meandering shape.
[0033]
Further, the case where the refrigerant (first fluid) and the water (second fluid) are circulated in the heat exchangers 3 and 33 and heat is exchanged between them has been described. It is not limited by water.
[0034]
【The invention's effect】
As described above, according to the present invention, the refrigerant to water heat exchanger of the heat pump water heater is formed in a spiral or meandering shape, so that the volume is smaller than that of a conventional cylindrical heat exchanger. Since it can be formed according to the shape of the space to be stored, it can be easily stored in the unit of the heat pump water heater and the storage rate can be improved. Thereby, the size of the unit of the heat pump water heater can be reduced.
[0035]
In addition, since the main body of the refrigerant / water heat exchanger is formed in accordance with the outer peripheral shape of the structure in the unit such as a hot water supply tank, the space in the unit can be utilized without waste, and the unit can be downsized. Can be.
[0036]
And since a heat pump water heater is miniaturized, the installation conditions of a heat pump water heater can be improved and the installation place can be easily selected.
[Brief description of the drawings]
FIG. 1 is a circuit diagram of a heat pump water heater according to Embodiment 1 of the present invention.
FIG. 2 is a front view showing the internal structure of the heat pump unit of FIG.
FIG. 3 is a side view showing the internal structure of the heat pump unit of FIG.
FIG. 4 is a schematic configuration diagram of the heat exchanger of FIG. 1;
FIG. 5 is a sectional view taken along line AA ′ of the heat exchanger of FIG. 4;
FIG. 6 is a schematic configuration diagram of a heat exchanger in another form different from FIG.
FIG. 7 is a front view showing an internal structure of an outdoor unit according to Embodiment 2 of the present invention.
FIG. 8 is a perspective view of a conventional heat exchanger.
FIG. 9 is a front view showing an example of a heat pump unit in which a conventional heat exchanger is disposed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Heat pump water heater 3, 33 Refrigerant-to-water heat exchanger 7 Refrigerant heat transfer tube (first heat transfer tube)
8 Hot water storage tank 12 Water heat transfer tube (second heat transfer tube)
13 Heat pump unit (HP unit)
14 Tank unit 16 Partition wall 24 Connecting pipe 32 Hot water supply unit

Claims (8)

第１流体が流動する流路を有する第１伝熱管と、第２流体が流動する流路を有する第２伝熱管とを備え、この第２伝熱管に第１伝熱管を埋設一体化して結合管と成し、この結合管を渦巻き状に折曲形成して構成したことを特徴とする熱交換器。A first heat transfer tube having a flow path through which the first fluid flows and a second heat transfer tube having a flow path through which the second fluid flows are provided. The first heat transfer tube is embedded in and integrated with the second heat transfer tube. A heat exchanger, wherein the heat exchanger comprises a tube, and the connecting tube is formed by spirally bending the tube. 第１流体が流動する流路を有する第１伝熱管と、第２流体が流動する流路を有する第２伝熱管とを備え、この第２伝熱管に第１伝熱管を埋設一体化して結合管と成し、この結合管を蛇行状に折曲形成して構成したことを特徴とする熱交換器。A first heat transfer tube having a flow path through which the first fluid flows and a second heat transfer tube having a flow path through which the second fluid flows are provided. The first heat transfer tube is embedded in and integrated with the second heat transfer tube. A heat exchanger comprising a tube, wherein the connecting tube is formed by bending in a meandering manner. 前記渦巻き状の熱交換器本体を平面形状を呈するように形成したことを特徴とする請求項１または２に記載の熱交換器。The heat exchanger according to claim 1, wherein the spiral heat exchanger main body is formed to have a planar shape. 前記渦巻き状の熱交換器本体を曲面形状を呈するように形成したことを特徴とする請求項１または２に記載の熱交換器。The heat exchanger according to claim 1, wherein the spiral heat exchanger main body is formed to have a curved surface shape. 請求項１または２に記載の前記熱交換器を、外装ケースの側板内側に配設したことを特徴とするヒートポンプ給湯機。A heat pump water heater, wherein the heat exchanger according to claim 1 or 2 is disposed inside a side plate of an outer case. 請求項１または２に記載の前記熱交換器を、外装ケースの底板内側または天板内側に配設したことを特徴とするヒートポンプ給湯機。A heat pump water heater, wherein the heat exchanger according to claim 1 or 2 is disposed inside a bottom plate or a top plate of an outer case. 請求項１または２に記載の前記熱交換器を、外装ケース内に設けられた隔壁面に沿って配設したことを特徴とするヒートポンプ給湯機。A heat pump water heater, wherein the heat exchanger according to claim 1 or 2 is disposed along a partition wall surface provided in an outer case. 請求項４に記載の前記熱交換器を、貯湯タンクの外周面に沿って配設したことを特徴とするヒートポンプ給湯機。A heat pump water heater, wherein the heat exchanger according to claim 4 is arranged along an outer peripheral surface of a hot water storage tank.
JP2002215962A 2002-07-25 2002-07-25 Heat exchanger and heat pump water heater equipped with the heat exchanger Expired - Fee Related JP3913629B2 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100805247B1 (en) 2005-11-16 2008-02-21 키무라코우키 가부시키가이샤 Water·cooled heat pump type air conditioner
WO2010069211A1 (en) * 2008-12-15 2010-06-24 Liu Daoming Slotted vane of heat exchange and processing method thereof, heat exchange, and water heater
WO2014085874A3 (en) * 2012-12-05 2014-09-12 Polyvision, Naamloze Vennootschap Spiral or helical counterflow heat exchanger
CN105222343A (en) * 2014-06-05 2016-01-06 广东纽恩泰新能源科技发展有限公司 A kind of frequency conversion air pump water heater
JP2017198041A (en) * 2016-04-28 2017-11-02 日工株式会社 Asphalt plant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5929012B2 (en) * 2011-05-23 2016-06-01 株式会社ノーリツ Heat exchanger and heat pump water heater

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100805247B1 (en) 2005-11-16 2008-02-21 키무라코우키 가부시키가이샤 Water·cooled heat pump type air conditioner
WO2010069211A1 (en) * 2008-12-15 2010-06-24 Liu Daoming Slotted vane of heat exchange and processing method thereof, heat exchange, and water heater
WO2014085874A3 (en) * 2012-12-05 2014-09-12 Polyvision, Naamloze Vennootschap Spiral or helical counterflow heat exchanger
BE1021647B1 (en) * 2012-12-05 2015-12-22 Polyvision, Naamloze Vennootschap HEAT EXCHANGERS
US10094621B2 (en) 2012-12-05 2018-10-09 Polyvision, Naamloze Vennootschap Spiral or helical counterflow heat exchanger
CN105222343A (en) * 2014-06-05 2016-01-06 广东纽恩泰新能源科技发展有限公司 A kind of frequency conversion air pump water heater
JP2017198041A (en) * 2016-04-28 2017-11-02 日工株式会社 Asphalt plant

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