JP6090133B2 - Hot water storage water heater - Google Patents

Hot water storage water heater Download PDF

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JP6090133B2
JP6090133B2 JP2013250979A JP2013250979A JP6090133B2 JP 6090133 B2 JP6090133 B2 JP 6090133B2 JP 2013250979 A JP2013250979 A JP 2013250979A JP 2013250979 A JP2013250979 A JP 2013250979A JP 6090133 B2 JP6090133 B2 JP 6090133B2
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hot water
heat insulating
insulating material
water storage
storage tank
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JP2015108470A (en
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古川　浩勝
浩勝 古川
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Mitsubishi Electric Corp
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Description

本発明は、貯湯式給湯機に関する。   The present invention relates to a hot water storage type water heater.

ヒートポンプ等の加熱手段によって水を加熱して得られた高温の湯を貯湯タンクに貯留し、必要時に貯湯タンクから湯を取り出して給湯端末に供給するよう構成された貯湯式給湯機が広く用いられている。貯湯タンクは、放熱ロスを抑えるため、断熱材で覆われる。その場合、複数の断熱部材を組み合わせて貯湯タンクの全体を覆うことが一般的である。断熱部材間に隙間があると、その隙間から熱気が漏出し、放熱ロスが大きくなる。このため、長期間が経過しても断熱部材間に隙間が生じないようにすることが望まれる。   Hot water storage water heaters configured to store hot water obtained by heating water by a heating means such as a heat pump in a hot water storage tank, take out the hot water from the hot water storage tank and supply it to the hot water supply terminal when necessary are widely used. ing. The hot water storage tank is covered with a heat insulating material to suppress heat loss. In that case, it is common to cover the entire hot water storage tank by combining a plurality of heat insulating members. If there is a gap between the heat insulating members, hot air leaks from the gap and heat dissipation loss increases. For this reason, it is desirable to prevent a gap from being generated between the heat insulating members even after a long period of time has elapsed.

通常、貯湯タンクは、円筒形であり、胴部の外周面は水平面に対し垂直な平滑面になっている。このため、例えばグラスウール等を用いた可撓性を有する可撓性断熱材を貯湯タンクの胴部に巻き付けて装着した場合、経年に伴い、可撓性断熱材が自重あるいは地震の振動などで徐々に下にズリ落ち易い。   Usually, the hot water storage tank has a cylindrical shape, and the outer peripheral surface of the body portion is a smooth surface perpendicular to the horizontal plane. For this reason, for example, when a flexible heat insulating material having flexibility using glass wool or the like is wound around the body portion of the hot water storage tank and attached, the flexible heat insulating material gradually increases due to its own weight or earthquake vibration. It is easy to fall down.

特許文献１には、貯湯タンクの少なくとも上部の外郭が発泡性成型断熱材により被覆され、この発泡性成型断熱材により被覆されていない残余の外郭がグラスウール製の面状断熱材で被覆されている貯湯式給湯機が開示されている。特許文献１の貯湯式給湯機では、面状断熱材を貯湯タンクに巻き付けた後に金属線材などの締着具を面状断熱材の外周に取り付けることで、巻き付け装着状態を保持している。   In Patent Document 1, at least the outer shell of the hot water storage tank is covered with a foamable molded heat insulating material, and the remaining outer shell not covered with the foamable molded heat insulating material is covered with a planar heat insulating material made of glass wool. A hot water storage type water heater is disclosed. In the hot water storage type hot water heater of Patent Document 1, the wound mounting state is maintained by attaching a fastener such as a metal wire to the outer periphery of the planar heat insulating material after the planar heat insulating material is wound around the hot water storage tank.

特開２００７−３０３７４８号公報JP 2007-303748 A

特許文献１の貯湯式給湯機では、貯湯タンクに巻き付けた可撓性断熱材（面状断熱材）の外周に金属線材などの締着具を取り付けている。しかしながら、貯湯タンクの胴部の外周面は水平方向に対し垂直な平滑面であるため、締着具で締め付けても、可撓性断熱材が自重あるいは地震の振動などで長期間の間に徐々に下にズリ落ちることを確実に防止することは困難である。そのため、経年に伴い、可撓性断熱材が徐々に下にズリ落ち、タンク上部の発泡性成型断熱材と、タンク胴部の可撓性断熱材との間に隙間が生じる。貯湯タンク内は、上側が高温、下側が低温となる温度成層が形成される。このため、高温となる貯湯タンクの上部側の断熱が特に重要である。特許文献１の貯湯式給湯機では、タンク上部の発泡性成型断熱材と、タンク胴部の可撓性断熱材との間に生じた隙間で、貯湯タンクの高温部分の表面が露出し、この高温部分から熱気が漏出し、大きな放熱ロスが発生する。   In the hot water storage type water heater of Patent Document 1, a fastener such as a metal wire is attached to the outer periphery of a flexible heat insulating material (planar heat insulating material) wound around a hot water storage tank. However, since the outer peripheral surface of the body portion of the hot water storage tank is a smooth surface perpendicular to the horizontal direction, even if it is tightened with a fastener, the flexible heat insulating material is gradually increased over a long period due to its own weight or earthquake vibration It is difficult to surely prevent falling down. Therefore, with the passage of time, the flexible heat insulating material gradually slips down, and a gap is generated between the foamable heat insulating material at the upper part of the tank and the flexible heat insulating material at the tank body. In the hot water storage tank, a temperature stratification is formed in which the upper side is hot and the lower side is low. For this reason, the heat insulation of the upper part side of the hot water storage tank which becomes high temperature is especially important. In the hot water storage type hot water heater of Patent Document 1, the surface of the hot water storage tank is exposed in a gap formed between the foamable heat insulating material at the top of the tank and the flexible heat insulating material at the tank body. Hot air leaks from the hot parts, causing a large heat dissipation loss.

一般に、可撓性断熱材は、グラスウール材等の可撓性を有する断熱部材が軟質樹脂等からなる袋体に入れられた構造のものが多い。外側の袋体と、グラスウール材等とは、固定されておらず、動くことができる。特許文献１の貯湯式給湯機では、可撓性断熱材の全体がズリ落ちなかったとしても、締着具より上側の部分において、袋体の内部でグラスウール材等が自重等でたわんで下に寄ってしまう場合がある。そのような場合、可撓性断熱材の袋体内のグラスウール材等の上端と、発泡性成型断熱材の下端との間に隙間が生じることで、貯湯タンクの高温部分からの熱気が漏出し、大きな放熱ロスが発生する。   In general, most flexible heat insulating materials have a structure in which a heat insulating member having flexibility such as glass wool material is put in a bag made of a soft resin or the like. The outer bag and the glass wool material are not fixed and can move. In the hot water storage type water heater of Patent Document 1, even if the entire flexible heat insulating material does not slip, the glass wool material or the like is bent by its own weight or the like inside the bag body in the upper part of the fastener. There is a case to come close. In such a case, a gap is generated between the upper end of the glass wool material or the like in the bag body of the flexible heat insulating material and the lower end of the foamable molded heat insulating material, so that hot air leaks from the hot part of the hot water storage tank, A large heat dissipation loss occurs.

本発明は、上述のような課題を解決するためになされたもので、貯湯タンクの胴部に巻き付けた可撓性断熱材がズリ落ちることを確実に抑制でき、断熱上重要な貯湯タンクの上部側の放熱ロスを確実に低減することのできる貯湯式給湯機を提供することを目的とする。   The present invention has been made to solve the above-described problems, and can reliably prevent the flexible heat insulating material wound around the body of the hot water storage tank from slipping, so that the upper part of the hot water storage tank is important for heat insulation. An object of the present invention is to provide a hot water storage type water heater that can reliably reduce the heat radiation loss on the side.

本発明に係る貯湯式給湯機は、湯を貯留する貯湯タンクと、貯湯タンクの上部を覆う形状に成形された上部成型断熱材と、貯湯タンクの胴部の外周に巻き付けられ、可撓性を有する可撓性断熱材と、締め付け部材と、を備える。上部成型断熱材は、可撓性断熱材の上端側の一部分に重なり合う下側部分と、この下側部分に形成され、可撓性断熱材側に向かって突出する凸部とを有する。締め付け部材は、上部成型断熱材の下側部分と可撓性断熱材の上端側の一部分とが重なり合った部分の外周を締め付ける。上部成形断熱材の下側部分に形成された凸部は、上部成形断熱材の下側部分と重なり合う可撓性断熱材の上端側の一部分に食い込んでいる。
The hot water storage type water heater according to the present invention is wound around the outer periphery of a hot water storage tank for storing hot water, an upper molded heat insulating material formed in a shape covering the upper part of the hot water storage tank, and the body of the hot water storage tank, and has flexibility. a flexible insulation material having a fastening member, Ru comprising a. Upper molding insulation material has a lower portion that overlaps a portion of the upper side of the flexible heat insulating material is formed on the lower portion, and a protrusion protruding toward the flexible insulation material side. The fastening member fastens the outer periphery of the portion where the lower portion of the upper molded heat insulating material and the upper end portion of the flexible heat insulating material overlap each other. The convex part formed in the lower part of the upper molded heat insulating material bites into a part of the upper end side of the flexible heat insulating material overlapping the lower part of the upper molded heat insulating material.

本発明によれば、貯湯タンクの胴部に巻き付けた可撓性断熱材がズリ落ちることを確実に抑制でき、断熱上重要な貯湯タンクの上部側の放熱ロスを確実に低減することが可能となる。   ADVANTAGE OF THE INVENTION According to this invention, it can suppress reliably that the flexible heat insulating material wound around the trunk | drum of a hot water storage tank falls, and it can reduce reliably the heat dissipation loss of the upper part of the hot water storage tank important for heat insulation. Become.

本発明の実施の形態１の貯湯式給湯機を示す構成図である。It is a block diagram which shows the hot water storage type water heater of Embodiment 1 of this invention. 本発明の実施の形態１における貯湯タンクおよび断熱部材を示す分解斜視図である。It is a disassembled perspective view which shows the hot water storage tank and heat insulation member in Embodiment 1 of this invention. 貯湯タンクに断熱部材を組付けた状態での図２中のＡ方向矢視の断面図である。It is sectional drawing of the A direction arrow in FIG. 2 in the state which assembled | attached the heat insulation member to the hot water storage tank. 胴部可撓性断熱材の断面図である。It is sectional drawing of a trunk | drum flexible heat insulating material. 図３中のＢ部の詳細図である。FIG. 4 is a detailed view of a portion B in FIG. 3. 本発明の実施の形態２における貯湯タンク、上部発泡性成型断熱材および胴部可撓性断熱材を示す分解斜視図である。It is a disassembled perspective view which shows the hot water storage tank in Embodiment 2 of this invention, an upper foaming shaping | molding heat insulating material, and a trunk | drum flexible heat insulating material. 本発明の実施の形態３における貯湯タンク、上部発泡性成型断熱材および胴部可撓性断熱材を示す分解斜視図である。It is a disassembled perspective view which shows the hot water storage tank in Embodiment 3 of this invention, an upper foaming shaping | molding heat insulating material, and a trunk | drum flexible heat insulating material.

以下、図面を参照して本発明の実施の形態について説明する。なお、各図において共通する要素には、同一の符号を付して、重複する説明を省略する。また、本発明は、以降に示す各実施の形態のあらゆる組み合わせを含むものとする。   Embodiments of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected to the element which is common in each figure, and the overlapping description is abbreviate | omitted. In addition, the present invention includes all combinations of the embodiments described below.

実施の形態１．
図１は、本発明の実施の形態１の貯湯式給湯機を示す構成図である。図１に示すように、本実施の形態１の貯湯式給湯機１は、貯湯タンクユニット４０と、ヒートポンプユニット５０とを有する。貯湯タンクユニット４０は、略円筒形状をなす貯湯タンク１０と、略直方体形状をなす外装ケース３０とを有する。貯湯タンク１０は、後述する断熱部材に覆われた状態で、外装ケース３０内に収容されている。ヒートポンプユニット５０は、水を加熱して湯を生成する加熱手段として機能する。貯湯タンク１０に貯留された湯は、必要に応じて所定の給湯先に供給される。なお、本発明における加熱手段は、ヒートポンプ式のものに限定されるものではなく、例えば、貯湯タンク１０内にヒータを設置する構成など、いかなる構成でも良い。 Embodiment 1 FIG.
FIG. 1 is a configuration diagram illustrating a hot water storage type water heater according to Embodiment 1 of the present invention. As shown in FIG. 1, the hot water storage type water heater 1 according to the first embodiment includes a hot water storage tank unit 40 and a heat pump unit 50. The hot water storage tank unit 40 includes a hot water storage tank 10 having a substantially cylindrical shape and an exterior case 30 having a substantially rectangular parallelepiped shape. The hot water storage tank 10 is accommodated in the exterior case 30 in a state covered with a heat insulating member to be described later. The heat pump unit 50 functions as a heating unit that generates hot water by heating water. Hot water stored in the hot water storage tank 10 is supplied to a predetermined hot water supply destination as necessary. The heating means in the present invention is not limited to a heat pump type, and may be any configuration such as a configuration in which a heater is installed in the hot water storage tank 10.

貯湯タンク１０の下部には、給水配管１１と、貯湯タンク１０内の低温水をヒートポンプユニット５０に送るためのヒートポンプ往き配管１３ａとが接続されている。また、貯湯タンク１０の上部には、ヒートポンプユニット５０により熱せられた湯を貯湯タンク１０内へ戻すためのヒートポンプ戻り配管１３ｂが接続されている。給湯配管１２は、浴室のシャワーや台所の蛇口等の所定の給湯栓（図示せず）に給湯するための配管である。ふろ往き配管１４は、浴槽（図示省略）に給湯するための配管である。   Connected to the lower part of the hot water storage tank 10 are a water supply pipe 11 and a heat pump forward pipe 13 a for sending low temperature water in the hot water storage tank 10 to the heat pump unit 50. In addition, a heat pump return pipe 13 b for returning hot water heated by the heat pump unit 50 into the hot water storage tank 10 is connected to the upper part of the hot water storage tank 10. The hot water supply pipe 12 is a pipe for supplying hot water to a predetermined hot water tap (not shown) such as a bathroom shower or a kitchen faucet. The bath piping 14 is a piping for supplying hot water to a bathtub (not shown).

貯湯タンクユニット４０の外装ケース３０の上面は、天板３２で構成されている。また、外装ケース３０の下部には、前面側が引っ込んだけこみ部３１が形成されている。けこみ部３１には、上述した給水配管１１、ヒートポンプ往き配管１３ａ、ヒートポンプ戻り配管１３ｂ、給湯配管１２、ふろ往き配管１４の各々を貯湯タンクユニット４０内に引き込むための、または貯湯タンクユニット４０内から引き出すための配管接続部がそれぞれ設けられている。   An upper surface of the outer case 30 of the hot water storage tank unit 40 is constituted by a top plate 32. Further, a recessed portion 31 is formed at the lower portion of the outer case 30 so that the front side is retracted. The retracting section 31 is used for drawing each of the water supply pipe 11, the heat pump forward pipe 13 a, the heat pump return pipe 13 b, the hot water supply pipe 12, and the bathroom pipe 14 into the hot water storage tank unit 40 or in the hot water storage tank unit 40. A pipe connection part for drawing out from each is provided.

外装ケース３０の下部には支持脚３５が接続されている。各支持脚３５を、コンクリート製の土台Ｃに設置されたアンカーボルト（図示省略）に固定することにより、貯湯タンクユニット４０が土台Ｃに据え付けられている。なお、上記の配管接続部および配管接続部に接続された各配管を覆い隠して貯湯タンクユニット４０の意匠性を向上させるために、外装ケース３０の下方には配管カバー（図示省略）が設けられる。   Support legs 35 are connected to the lower part of the outer case 30. The hot water storage tank unit 40 is installed on the base C by fixing each support leg 35 to an anchor bolt (not shown) installed on the concrete base C. In addition, a pipe cover (not shown) is provided below the outer case 30 in order to improve the design of the hot water storage tank unit 40 by covering the pipe connections and the pipes connected to the pipe connections. .

上述の構成を有する貯湯式給湯機１では、給水配管１１からの給水により貯湯タンク１０内が上層の高温湯と下層の低温水とで常時満水状態に保たれると共に、貯湯タンク１０内の湯水に給水配管１１から常時送水圧が付与される。沸き上げ運転時には、貯湯タンク１０内の下部にある低温水がヒートポンプ往き配管１３ａを通ってヒートポンプユニット５０内の熱交換器（放熱器）に送られ、熱交換器で沸き上げられて高温の湯となる。その高温の湯は、ヒートポンプ戻り配管１３ｂを通って貯湯タンク１０に戻り、上部から貯湯タンク１０内に流入する。   In the hot water storage type hot water heater 1 having the above-described configuration, the hot water storage tank 10 is always filled with the high temperature hot water in the upper layer and the low temperature water in the lower layer by the water supply from the water supply pipe 11, and the hot water in the hot water storage tank 10 is maintained. A constant water supply pressure is applied to the water supply pipe 11. At the time of boiling operation, the low temperature water in the lower part of the hot water storage tank 10 is sent to the heat exchanger (heat radiator) in the heat pump unit 50 through the heat pump outgoing pipe 13a, and is boiled by the heat exchanger and heated to high temperature. It becomes. The hot water returns to the hot water storage tank 10 through the heat pump return pipe 13b and flows into the hot water storage tank 10 from above.

また、給湯時には、給水配管１１からの送水圧により貯湯タンク１０内の高温の湯が給湯管路に流入し、その高温の湯と給水配管１１からの低温水とが混合弁によって混合されることにより、使用者がリモートコントローラ（図示省略）等で設定した給湯温度の湯が生成され、その湯が給湯配管１２あるいはふろ往き配管１４を通って、浴室、台所等の所定の給湯栓あるいは浴槽に供給される。   Further, at the time of hot water supply, hot water in the hot water storage tank 10 flows into the hot water supply pipe due to the water supply pressure from the water supply pipe 11, and the hot water and low temperature water from the water supply pipe 11 are mixed by the mixing valve. Thus, hot water having a hot water temperature set by a user using a remote controller (not shown) or the like is generated, and the hot water passes through the hot water supply pipe 12 or the forward piping 14 to a predetermined hot water tap or bathtub in a bathroom, kitchen, or the like. Supplied.

図２は、本発明の実施の形態１における貯湯タンク１０および断熱部材を示す分解斜視図である。図２では、貯湯タンク１０に設けられる配管口等は省略している。図３は、貯湯タンク１０に断熱部材を組付けた状態での図２中のＡ方向矢視の断面図である。図４は、胴部可撓性断熱材２１の断面図である。図５は、図３中のＢ部の詳細図である。   FIG. 2 is an exploded perspective view showing hot water storage tank 10 and a heat insulating member in Embodiment 1 of the present invention. In FIG. 2, piping ports and the like provided in the hot water storage tank 10 are omitted. FIG. 3 is a cross-sectional view taken in the direction of arrow A in FIG. 2 in a state in which a heat insulating member is assembled to the hot water storage tank 10. FIG. 4 is a cross-sectional view of the trunk flexible heat insulating material 21. FIG. 5 is a detailed view of a portion B in FIG.

貯湯タンク１０と外装ケース３０との間には、図２に示す上部発泡性成型断熱材２２、下部発泡性成型断熱材２３、および胴部可撓性断熱材２１が配置される。貯湯タンク１０の周囲をこれらの断熱部材によって密着して覆うことにより、貯湯タンク１０からの放熱を極力抑えることができる。上部発泡性成型断熱材２２は、貯湯タンク１０の上部を覆う形状となるように成形された断熱部材である。下部発泡性成型断熱材２３は、貯湯タンク１０の下部を覆う形状となるように成形された断熱部材である。上部発泡性成型断熱材２２および下部発泡性成型断熱材２３の構成材料としては、例えば、発泡ポリスチレン等の発泡プラスチックが好ましく用いられる。上部発泡性成型断熱材２２は、皿状または椀状の形状をなしており、貯湯タンク１０の上面側を覆う位置に配置される。下部発泡性成型断熱材２３は、皿状または椀状の形状をなしており、貯湯タンク１０の底面側を覆う位置に配置される。胴部可撓性断熱材２１は、可撓性を有する板状の断熱部材である。胴部可撓性断熱材２１は、貯湯タンク１０の胴部の外周に巻き付けられ、円筒状をなすようにして、貯湯タンク１０の胴部を覆うように配置される。   Between the hot water storage tank 10 and the outer case 30, an upper foamable molded heat insulating material 22, a lower foamable molded heat insulating material 23, and a trunk flexible heat insulating material 21 shown in FIG. 2 are arranged. By closely covering the periphery of the hot water storage tank 10 with these heat insulating members, heat radiation from the hot water storage tank 10 can be suppressed as much as possible. The upper foamable heat insulating material 22 is a heat insulating member formed so as to cover the upper part of the hot water storage tank 10. The lower foaming molded heat insulating material 23 is a heat insulating member formed so as to cover the lower part of the hot water storage tank 10. As a constituent material of the upper foamable molded heat insulating material 22 and the lower foamable molded heat insulating material 23, for example, a foamed plastic such as foamed polystyrene is preferably used. The upper foaming molded heat insulating material 22 has a dish-like or bowl-like shape, and is disposed at a position covering the upper surface side of the hot water storage tank 10. The lower foamable molded heat insulating material 23 has a dish-like or bowl-like shape, and is disposed at a position covering the bottom surface side of the hot water storage tank 10. The trunk | drum flexible heat insulating material 21 is a plate-shaped heat insulation member which has flexibility. The body flexible heat insulating material 21 is wound around the outer periphery of the body of the hot water storage tank 10 and is disposed so as to cover the body of the hot water storage tank 10 in a cylindrical shape.

図３に示すように、上部発泡性成型断熱材２２は、胴部可撓性断熱材２１の上端側の一部分である上端部分２１ａに重なり合う下側部分２２ａを有する。下側部分２２ａは、貯湯タンク１０の外周の全周に渡って設けられている。下側部分２２ａの外側に胴部可撓性断熱材２１の上端部分２１ａが重なり合う。上部発泡性成型断熱材２２の下側部分２２ａの厚さは、他の部分に比べて薄くなっている。これにより、下側部分２２ａと胴部可撓性断熱材２１の上端部分２１ａとが重なり合った部分の厚さが、上部発泡性成型断熱材２２の他の部分の厚さに比べて厚くなることを抑制できる。上部発泡性成型断熱材２２の下側部分２２ａには、胴部可撓性断熱材２１側に向かって突出する凸部２２ｂが形成されている。すなわち、凸部２２ｂは、貯湯タンク１０の径方向外方へ向かって突出する。下側部分２２ａと胴部可撓性断熱材２１の上端部分２１ａとが重なり合った部分の外周には、締め付け部材としてのテープ２５（粘着テープ）が巻かれている。テープ２５の締め付け力により、胴部可撓性断熱材２１の上端部分２１ａは、他の部分に比べて厚さが薄くなるように変形している。また、テープ２５は、上部発泡性成型断熱材２２と、胴部可撓性断熱材２１との隙間を埋めるように、両方にかかるように貼り付けることが好ましい。   As shown in FIG. 3, the upper foamable heat insulating material 22 has a lower portion 22 a that overlaps with an upper end portion 21 a that is a portion on the upper end side of the trunk flexible heat insulating material 21. The lower portion 22 a is provided over the entire outer periphery of the hot water storage tank 10. The upper end portion 21a of the body flexible heat insulating material 21 overlaps the outside of the lower portion 22a. The thickness of the lower part 22a of the upper foaming molded heat insulating material 22 is thinner than other parts. Thereby, the thickness of the part which the lower part 22a and the upper end part 21a of the trunk | drum flexible heat insulating material 21 overlapped becomes thick compared with the thickness of the other part of the upper foaming shaping | molding heat insulating material 22. Can be suppressed. The lower portion 22a of the upper foamable heat insulating material 22 is formed with a convex portion 22b that protrudes toward the body flexible heat insulating material 21 side. That is, the convex portion 22 b protrudes outward in the radial direction of the hot water storage tank 10. A tape 25 (adhesive tape) as a fastening member is wound around the outer periphery of a portion where the lower portion 22a and the upper end portion 21a of the body flexible heat insulating material 21 overlap each other. Due to the tightening force of the tape 25, the upper end portion 21a of the body flexible heat insulating material 21 is deformed so as to be thinner than the other portions. Moreover, it is preferable to affix the tape 25 so that both may be covered so that the clearance gap between the upper foaming shaping | molding heat insulating material 22 and the trunk | drum flexible heat insulating material 21 may be filled up.

図４に示すように、胴部可撓性断熱材２１は、軟質樹脂等で構成された袋体２１ｂと、この袋体２１ｂで覆われたグラスウール材２１ｃ（断熱材本体）とで構成される。グラスウール材２１ｃは、板状に形成されている。袋体２１ｂとグラスウール材２１ｃとは固定されていないため、袋体２１ｂに対してグラスウール材２１ｃがずれ動くことが可能である。   As shown in FIG. 4, the body flexible heat insulating material 21 includes a bag body 21 b made of a soft resin and the like, and a glass wool material 21 c (heat insulating material body) covered with the bag body 21 b. . The glass wool material 21c is formed in a plate shape. Since the bag body 21b and the glass wool material 21c are not fixed, the glass wool material 21c can be displaced with respect to the bag body 21b.

図５に示すように、上部発泡性成型断熱材２２の下側部分２２ａに設けられた凸部２２ｂは、胴部可撓性断熱材２１の上端部分２１ａに食い込む。上端部分２１ａ内のグラスウール材２１ｃは、凸部２２ｂが食い込むことで変形し、凸部２２ｂの上側の凹部に入り込む。このようにして、上部発泡性成型断熱材２２の凸部２２ｂと、胴部可撓性断熱材２１の上端部分２１ａとが噛み合うことで、胴部可撓性断熱材２１が自重あるいは地震の振動などで下にズリ落ちることを長期間に渡って確実に防止することができる。このようにして、本実施の形態１によれば、経年しても上部発泡性成型断熱材２２と胴部可撓性断熱材２１との間に隙間が生じることを確実に抑制することができるので、貯湯タンク１０の上部側の高温部分からの熱気の漏出による放熱ロスの発生を長期間に渡って確実に抑制することができる。また、上端部分２１ａに凸部２２ｂが食い込むことで、袋体２１ｂの内部のグラスウール材２１ｃと凸部２２ｂとが噛み合っているので、袋体２１ｂの内部でグラスウール材２１ｃがたわんで下にずれることもない。このため、上部発泡性成型断熱材２２の下側部分２２ａとグラスウール材２１ｃとの間に隙間が生じることを確実に抑制できるので、熱気の漏出を確実に防止できる。   As shown in FIG. 5, the convex portion 22 b provided on the lower portion 22 a of the upper foamable molded heat insulating material 22 bites into the upper end portion 21 a of the body flexible heat insulating material 21. The glass wool material 21c in the upper end portion 21a is deformed when the convex portion 22b bites into the concave portion on the upper side of the convex portion 22b. In this way, the convex portion 22b of the upper foamable molded heat insulating material 22 and the upper end portion 21a of the body flexible heat insulating material 21 are engaged with each other, so that the body flexible heat insulating material 21 has its own weight or vibration of earthquake. For example, it can be reliably prevented from slipping down for a long time. In this way, according to the first embodiment, it is possible to reliably suppress the generation of a gap between the upper foaming molded heat insulating material 22 and the trunk portion flexible heat insulating material 21 even after aging. Therefore, generation | occurrence | production of the heat radiation loss by the leakage of the hot air from the high temperature part of the upper part side of the hot water storage tank 10 can be suppressed reliably over a long period of time. Further, since the convex portion 22b bites into the upper end portion 21a, the glass wool material 21c inside the bag body 21b and the convex portion 22b mesh with each other, so that the glass wool material 21c bends and shifts downward inside the bag body 21b. Nor. For this reason, since it can suppress reliably that a clearance gap produces between the lower part 22a of the upper foaming shaping | molding heat insulating material 22 and the glass wool material 21c, the leakage of a hot air can be prevented reliably.

本実施の形態１では、上部発泡性成型断熱材２２の下側部分２２ａと胴部可撓性断熱材２１の上端部分２１ａとが重なり合った部分の外周をテープ２５で締め付けていることで、上部発泡性成型断熱材２２と胴部可撓性断熱材２１との間に隙間が生じることを、長期間に渡って、より確実に抑制することができる。なお、この締め付け部材としては、テープ２５に限らず、バンド等の帯状部材またはワイヤー等の線状部材などを用いても良い。   In the first embodiment, the outer periphery of the portion where the lower portion 22a of the upper foamable heat insulating material 22 and the upper end portion 21a of the body flexible heat insulating material 21 overlap is fastened with the tape 25, so that the upper portion Generation of a gap between the foamable heat insulating material 22 and the trunk flexible heat insulating material 21 can be more reliably suppressed over a long period of time. The fastening member is not limited to the tape 25, and a band-like member such as a band or a linear member such as a wire may be used.

本実施の形態１では、凸部２２ｂを貯湯タンク１０の周方向の全周に渡って形成している。このため、胴部可撓性断熱材２１の上端部分２１ａをより確実に固定することができ、上部発泡性成型断熱材２２と胴部可撓性断熱材２１との間に隙間が生じることを、長期間に渡って、より確実に抑制することができる。   In the first embodiment, the convex portion 22b is formed over the entire circumference of the hot water storage tank 10 in the circumferential direction. For this reason, the upper end part 21a of the trunk | drum flexible heat insulating material 21 can be fixed more reliably, and a clearance gap arises between the upper foaming shaping | molding heat insulating material 22 and the trunk | drum flexible heat insulating material 21. It can be more reliably suppressed over a long period of time.

本実施の形態１では、上部発泡性成型断熱材２２の下側部分２２ａの厚さを他の部分に比べて薄くしたことで、下側部分２２ａと胴部可撓性断熱材２１の上端部分２１ａとが重なり合った部分の厚さを抑制できる。このため、貯湯タンク１０と外装ケース３０との隙間が小さい箇所にも問題なく適用可能である。よって、外装ケース３０を小型化できる。   In the first embodiment, the lower portion 22a of the upper foamable molded heat insulating material 22 is made thinner than the other portions, so that the lower portion 22a and the upper end portion of the body flexible heat insulating material 21 are formed. The thickness of the portion where 21a overlaps can be suppressed. For this reason, the present invention can be applied to a portion where the gap between the hot water storage tank 10 and the outer case 30 is small without any problem. Therefore, the exterior case 30 can be reduced in size.

実施の形態２．
次に、図６を参照して、本発明の実施の形態２について説明するが、上述した実施の形態１との相違点を中心に説明し、同一部分または相当部分は同一符号を付し説明を省略する。図６は、本発明の実施の形態２における貯湯タンク１０、上部発泡性成型断熱材２２および胴部可撓性断熱材２１を示す分解斜視図である。 Embodiment 2. FIG.
Next, the second embodiment of the present invention will be described with reference to FIG. 6. The description will focus on the differences from the first embodiment described above, and the same or corresponding parts will be denoted by the same reference numerals. Is omitted. FIG. 6 is an exploded perspective view showing hot water storage tank 10, upper foamable heat insulating material 22, and body flexible heat insulating material 21 in Embodiment 2 of the present invention.

図６に示すように、本実施の形態２では、上部発泡性成型断熱材２２の下側部分２２ａの凸部２２ｂは、貯湯タンク１０の周方向に沿って間隔をあけて複数個所に形成されている。凸部２２ｂが形成された箇所では、凸部２２ｂのない箇所に比べて、上部発泡性成型断熱材２２の下側部分２２ａと胴部可撓性断熱材２１の上端部分２１ａとが重なり合った部分の厚さが厚くなる。本実施の形態２では、貯湯タンク１０と外装ケース３０との隙間が大きい箇所（例えば、外装ケース３０の角部など）に凸部２２ｂを配置し、貯湯タンク１０と外装ケース３０との隙間が小さい箇所には凸部２２ｂを設けないようにすることで、貯湯タンク１０と外装ケース３０との隙間が小さいままでも問題なく適用可能であり、外装ケース３０を小型化できる。   As shown in FIG. 6, in the second embodiment, the convex portions 22 b of the lower portion 22 a of the upper foamable molded heat insulating material 22 are formed at a plurality of locations at intervals along the circumferential direction of the hot water storage tank 10. ing. The portion where the convex portion 22b is formed, the lower portion 22a of the upper foaming molded heat insulating material 22 and the upper end portion 21a of the body flexible heat insulating material 21 are overlapped as compared with the portion where the convex portion 22b is not provided. The thickness of becomes thicker. In the second embodiment, the convex portion 22b is arranged at a location where the gap between the hot water storage tank 10 and the outer case 30 is large (for example, the corner of the outer case 30), and the gap between the hot water storage tank 10 and the outer case 30 is small. By not providing the convex portion 22b in a small portion, the outer case 30 can be downsized because the gap between the hot water storage tank 10 and the outer case 30 can be applied without any problem.

実施の形態３．
次に、図７を参照して、本発明の実施の形態３について説明するが、上述した実施の形態１との相違点を中心に説明し、同一部分または相当部分は同一符号を付し説明を省略する。図７は、本発明の実施の形態３における貯湯タンク１０、上部発泡性成型断熱材２２および胴部可撓性断熱材２１を示す分解斜視図である。 Embodiment 3 FIG.
Next, a third embodiment of the present invention will be described with reference to FIG. 7. The description will focus on the differences from the first embodiment described above, and the same or corresponding parts will be denoted by the same reference numerals. Is omitted. FIG. 7 is an exploded perspective view showing hot water storage tank 10, upper foamable molded heat insulating material 22, and trunk flexible heat insulating material 21 in Embodiment 3 of the present invention.

図７に示すように、本実施の形態３では、上部発泡性成型断熱材２２の下側部分２２ａの凸部２２ｂは、貯湯タンク１０の周方向に沿って間隔をあけて複数個所に形成されている。上部発泡性成型断熱材２２の下側部分２２ａに重なる胴部可撓性断熱材２１の上端部分２１ａには、凸部２２ｂが挿入する穴２１ｄが形成されている。本実施の形態３では、胴部可撓性断熱材２１の上端部分２１ａに形成された穴２１ｄに上部発泡性成型断熱材２２の凸部２２ｂが挿入することで、胴部可撓性断熱材２１が自重あるいは地震の振動などで下にズリ落ちることを長期間に渡ってより確実に防止することができる。さらに、本実施の形態３では、穴２１ｄに凸部２２ｂが挿入するように胴部可撓性断熱材２１を巻き付けることで、貯湯タンク１０の外周の周りに回転する方向の胴部可撓性断熱材２１の位置決めを行うことができる。このため、胴部可撓性断熱材２１を巻き付ける際に、貯湯タンク１０の外周の周りに回転する方向に関して胴部可撓性断熱材２１を適切な位置に容易に位置決めすることができる。   As shown in FIG. 7, in the third embodiment, the convex portions 22 b of the lower portion 22 a of the upper foamable molded heat insulating material 22 are formed at a plurality of locations at intervals along the circumferential direction of the hot water storage tank 10. ing. A hole 21d into which the convex portion 22b is inserted is formed in the upper end portion 21a of the body flexible heat insulating material 21 that overlaps the lower portion 22a of the upper foamable heat insulating material 22. In this Embodiment 3, the convex part 22b of the top foaming molded heat insulating material 22 is inserted into the hole 21d formed in the upper end part 21a of the body flexible heat insulating material 21, so that the body flexible heat insulating material is inserted. It is possible to more reliably prevent 21 from slipping down due to its own weight or earthquake vibration. Furthermore, in this Embodiment 3, the trunk | drum flexibility of the direction rotated around the outer periphery of the hot water storage tank 10 is wound by winding the trunk | drum flexible heat insulating material 21 so that the convex part 22b may be inserted in the hole 21d. The heat insulating material 21 can be positioned. For this reason, when winding the trunk | drum flexible heat insulating material 21, the trunk | drum flexible heat insulating material 21 can be easily positioned in an appropriate position regarding the direction rotated around the outer periphery of the hot water storage tank 10.

なお、穴２１ｄに代えて、凸部２２ｂが挿入する切れ込みまたは凹部を胴部可撓性断熱材２１の上端部分２１ａに形成しても良い。その場合においても、上記と同様の効果が得られる。   Instead of the hole 21d, a notch or a recess into which the convex portion 22b is inserted may be formed in the upper end portion 21a of the body flexible heat insulating material 21. Even in that case, the same effect as described above can be obtained.

１ 貯湯式給湯機、１０ 貯湯タンク、１１ 給水配管、１２ 給湯配管、１３ａ ヒートポンプ往き配管、１３ｂ ヒートポンプ戻り配管、１４ ふろ往き配管、２１ 胴部可撓性断熱材、２１ａ 上端部分、２１ｂ 袋体、２１ｃ グラスウール材、２１ｄ 穴、２２ 上部発泡性成型断熱材、２２ａ 下側部分、２２ｂ 凸部、２３ 下部発泡性成型断熱材、２５ テープ、３０ 外装ケース、３１ けこみ部、３２ 天板、３５ 支持脚、４０ 貯湯タンクユニット、５０ ヒートポンプユニット DESCRIPTION OF SYMBOLS 1 Hot water storage type hot water supply machine, 10 Hot water storage tank, 11 Hot water supply piping, 12 Hot water supply piping, 13a Heat pump outgoing piping, 13b Heat pump return piping, 14 Front piping, 21 Body flexible heat insulating material, 21a Upper end part, 21b Bag body, 21c Glass wool material, 21d hole, 22 Upper foaming heat insulation material, 22a Lower part, 22b Convex part, 23 Lower foaming heat insulation material, 25 Tape, 30 Exterior case, 31 Indentation part, 32 Top plate, 35 Support Leg, 40 Hot water storage tank unit, 50 Heat pump unit

Claims (4)

湯を貯留する貯湯タンクと、
前記貯湯タンクの上部を覆う形状に成形された上部成型断熱材と、
前記貯湯タンクの胴部の外周に巻き付けられ、可撓性を有する可撓性断熱材と、
締め付け部材と、
を備え、
前記上部成型断熱材は、前記可撓性断熱材の上端側の一部分に重なり合う下側部分と、
前記下側部分に形成され、前記可撓性断熱材側に向かって突出する凸部とを有し、
前記締め付け部材は、前記上部成型断熱材の前記下側部分と前記可撓性断熱材の前記一部分とが重なり合った部分の外周を締め付け、
前記凸部は、前記可撓性断熱材の前記一部分に食い込んでいる貯湯式給湯機。 A hot water storage tank for storing hot water;
An upper molded heat insulating material molded into a shape covering the upper part of the hot water storage tank;
A flexible heat insulating material wound around the outer periphery of the body of the hot water storage tank and having flexibility ;
A clamping member;
With
The upper molded heat insulating material has a lower portion that overlaps a portion of the upper end side of the flexible heat insulating material,
Formed in the lower portion, it possesses a protrusion protruding toward the flexible insulation material side,
The fastening member fastens the outer periphery of the portion where the lower part of the upper molded heat insulating material and the part of the flexible heat insulating material overlap,
The convex portion is a hot water storage type hot water heater that bites into the part of the flexible heat insulating material . 前記凸部は、前記貯湯タンクの周方向の全周に形成されている請求項１に記載の貯湯式給湯機。 The hot water storage type hot water supply device according to claim 1 , wherein the convex portion is formed on the entire circumference in the circumferential direction of the hot water storage tank. 前記凸部は、前記貯湯タンクの周方向に沿って間隔をあけて複数個所に形成されている請求項１に記載の貯湯式給湯機。 The hot water storage type hot water heater according to claim 1 , wherein the convex portions are formed at a plurality of locations at intervals along the circumferential direction of the hot water storage tank. 前記可撓性断熱材は、前記凸部が挿入する穴、切れ込みまたは凹部を有する請求項１から請求項３のいずれか一項に記載の貯湯式給湯機。 The hot water storage type hot water supply device according to any one of claims 1 to 3 , wherein the flexible heat insulating material has a hole, a cut, or a concave portion into which the convex portion is inserted.
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EP4332023A4 (en) * 2021-04-28 2024-06-05 Mitsubishi Electric Corporation Hot water storage tank
WO2023195156A1 (en) * 2022-04-08 2023-10-12 三菱電機株式会社 Hot water storage tank

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DE3518935A1 (en) * 1985-05-25 1986-12-11 C.A. Greiner und Söhne GmbH & Co KG, 7440 Nürtingen Foam insulating element for storage tanks, and process for the production thereof
JP2007303748A (en) * 2006-05-12 2007-11-22 Sanyo Electric Co Ltd Water heater
DE102007044768A1 (en) * 2006-09-25 2008-04-03 Vaillant Gmbh Multi-part thermal insulation for a store
JP2009047333A (en) * 2007-08-17 2009-03-05 Corona Corp Hot water storage type water heater
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