JP2011117672A - Storage type hot water supply system - Google Patents

Storage type hot water supply system Download PDF

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JP2011117672A
JP2011117672A JP2009275796A JP2009275796A JP2011117672A JP 2011117672 A JP2011117672 A JP 2011117672A JP 2009275796 A JP2009275796 A JP 2009275796A JP 2009275796 A JP2009275796 A JP 2009275796A JP 2011117672 A JP2011117672 A JP 2011117672A
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hot water
heat insulating
insulating material
water storage
high temperature
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Satoshi Akagi
智 赤木
Masaki Toyoshima
正樹 豊島
Fumitake Unezaki
史武 畝崎
Akihiro Nishida
明広 西田
So Hiraoka
宗 平岡
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a storage type hot water supply system capable of improving energy saving property with high cost performance. <P>SOLUTION: This storage type hot water supply system includes a hot water storage tank 1 for storing hot water boiled up by a heating means 10, a hot water supply circuit 20 for supplying the hot water in the hot water storage tank to a hot water supply destination through a mixing means 22 for a hot-water faucet, a tank heat insulating material 3 covering the hot water storage tank, and an outer housing 2 receiving at least the hot water storage tank. Moderate high temperature pipe/component heat insulating materials 4 covering at least a part of a pipe and a component having moderate high intermediate are respectively disposed in the heating means and the hot water supply circuit, and the moderate high temperature pipe/component heat insulating materials are fixed to the tank heat insulating material in a state of holding a part of the pipe and the component, with the tank heat insulating material. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、貯湯式給湯システムに関し、特に、貯湯式給湯システムに装備される、中高温配管部品、及び、貯湯タンクの断熱方法に関するものである。   The present invention relates to a hot water storage type hot water supply system, and more particularly, to a heat insulation method for a hot water storage tank and a medium / high temperature piping component equipped in the hot water storage type hot water supply system.

貯湯式給湯システムは、瞬間式給湯システム等と比べて、加熱手段の加熱能力が比較的小さい場合や、加熱手段の起動時における能力の立ち上がりが遅い場合に適用されるシステムである。   The hot water storage type hot water supply system is a system that is applied when the heating capability of the heating means is relatively small as compared to an instantaneous hot water supply system or the like, or when the start-up of the capability at the time of activation of the heating means is slow.

また、貯湯式給湯システムは、給湯負荷の発生に対して湯切れが生じることがないように、事前に加熱手段により沸き上げられた給湯用の湯を貯湯タンクに貯めておき、当該貯湯タンクから給湯を行うシステムである。   Also, the hot water storage type hot water supply system stores hot water for hot water boiled by the heating means in advance in the hot water storage tank so that the hot water does not run out due to the hot water supply load. It is a system that supplies hot water.

また、貯湯式給湯システムは、事前に湯を貯湯タンクに貯めるシステムであり、ユーザーによる湯の使用までの間に貯湯タンクから周囲環境へ放熱されるため、貯湯タンクの断熱性能が省エネルギー性に大きな影響を与えるシステムである。   In addition, the hot water storage system is a system that stores hot water in a hot water storage tank in advance, and since heat is radiated from the hot water storage tank to the surrounding environment before the user uses the hot water, the thermal insulation performance of the hot water storage tank is great for energy saving. It is an influential system.

また、貯湯式給湯システムは、加熱手段で沸き上げた湯を貯湯タンクに導くため、及び、ユーザーにより湯が使用される需要端へ貯湯タンク内の熱を伝えるために、各種の配管や部品が必要となるため、それら配管や部品を何らかの方法で支持固定するシステムである。   In addition, the hot water storage hot water supply system uses various pipes and parts to guide the hot water boiled by the heating means to the hot water storage tank and to transmit the heat in the hot water storage tank to the demand end where the user uses the hot water. Because it is necessary, it is a system that supports and fixes these pipes and parts in some way.

また、それらの配管や部品においても周囲環境への放熱が行われるため、それらの配管や部品の断熱性能が省エネルギー性に大きな影響を与えるシステムである。   Moreover, since heat is dissipated to the surrounding environment also in those piping and components, it is a system in which the heat insulation performance of those piping and components has big influence on energy-saving property.

従来の貯湯式給湯システムとしては、例えば需要端へ熱を伝える部品の一つである追焚熱交換器において、「・・・前記熱交換器の全面を覆うように配設した保温材とを備え」たものが知られている（特許文献１参照）。このような貯湯式給湯システムは、単一の部品ごとを断熱材で覆い、当該部品における周囲環境への放熱を抑制する。   As a conventional hot water storage type hot water supply system, for example, in a memorial heat exchanger that is one of the parts that conducts heat to a demand end, “... a heat insulating material disposed so as to cover the entire surface of the heat exchanger. What is provided is known (see Patent Document 1). Such a hot water storage type hot water supply system covers each single component with a heat insulating material, and suppresses heat radiation to the surrounding environment in the component.

また、従来の貯湯式給湯システムとしては、例えば、「・・・貯湯タンクを保温するための・・・前記断熱材を前記ユニット本体内に配設される部品を取り付けるための支持具を発泡工程で埋設した発泡断熱材で構成した」ものが知られている（特許文献２参照）。このような貯湯式給湯システムは、貯湯タンクを覆う断熱材に対して、各種の部品を支持できるだけの深い凹部を設け、当該凹部に支持具を埋設し、当該支持具に各種部品を固定することにより、比較的安価な方法で各種部品の固定を実現する。   In addition, as a conventional hot water storage type hot water supply system, for example, “... for keeping warm a hot water storage tank ... a support for attaching a component disposed in the unit body to the heat insulating material” It is known that it is composed of a foam heat insulating material embedded in (see Patent Document 2). In such a hot water storage type hot water supply system, a deep recess capable of supporting various components is provided in the heat insulating material covering the hot water storage tank, and a support is embedded in the recess, and the various components are fixed to the support. As a result, various parts can be fixed by a relatively inexpensive method.

特開２００５−１４７４１３号公報（請求項１、図１）JP-A-2005-147413 (Claim 1, FIG. 1) 特開２００８−０５７７９４号公報（請求項１、図４）JP 2008-057994 A (Claim 1, FIG. 4)

しかしながら、特許文献１の貯湯式給湯システムでは、一つ一つの部品を断熱材で覆うため作業が繁雑になりコストが掛かる割に部品単体を断熱する効果しか無くメリットが小さいという問題があった。   However, the hot water storage type hot water supply system of Patent Document 1 has a problem in that each part is covered with a heat insulating material, so that the work is complicated and the cost is high.

また、特許文献２の貯湯式給湯システムは、貯湯タンクのみを断熱材で覆う構成であり、貯湯タンクに取り付けられる様々な部品に対しては断熱材で覆う構成とはなっていない。そのため特許文献２の貯湯式給湯システムは、省エネルギー性の向上ではなく部品の安価な支持を目的とした技術であり、部品の埋設部ではタンク断熱材に深い凹部を設けるためタンク断熱材の厚みが薄くなり、断熱性能が悪化するという問題があった。   Moreover, the hot water storage type hot-water supply system of patent document 2 is the structure which covers only a hot water storage tank with a heat insulating material, and is not the structure covered with a heat insulating material with respect to various components attached to a hot water storage tank. For this reason, the hot water storage hot water supply system of Patent Document 2 is a technique for the purpose of inexpensively supporting parts rather than improving energy savings, and in the embedded part of the parts, since the tank heat insulating material is provided with a deep recess, the thickness of the tank heat insulating material is reduced. There was a problem that it became thin and the heat insulation performance deteriorated.

本発明は、上記のような課題に鑑みてなされたもので、中高温の湯が循環または流通する配管と部品を集中配置するとともに、それらを断熱材で覆いつつその断熱材をタンク断熱材に結合することにより、中高温配管部品からの放熱の抑制、簡易かつ安価な中高温配管部品の支持固定、貯湯タンクの断熱性能の強化、の３点のメリットを同時に実現する、高いコストパフォーマンスで省エネルギー性が向上した貯湯式給湯システムを得ることを目的とする。   The present invention has been made in view of the problems as described above, and concentrates and arranges pipes and parts through which medium-high temperature hot water circulates or circulates, and covers them with a heat insulating material so that the heat insulating material is used as a tank heat insulating material. By combining these, it is possible to simultaneously achieve the three advantages of suppressing heat dissipation from medium and high temperature piping parts, supporting and fixing simple and inexpensive medium and high temperature piping parts, and enhancing the heat insulation performance of hot water storage tanks. The purpose is to obtain a hot water storage hot water supply system with improved performance.

本発明に係る貯湯式給湯システムは、
加熱手段で沸き上げられた湯が貯留される貯湯タンクと、
前記貯湯タンク内の湯を湯栓用混合手段を介して給湯先に供給する給湯回路と、
前記貯湯タンクを覆うタンク断熱材と、
少なくとも貯湯タンクを収容する外装筐体と、
を備えた貯湯式給湯システムにおいて、
前記加熱手段及び前記給湯回路の各々に設けられ、中高温となる配管及び部品の少なくとも一部分を覆う中高温配管部品断熱材を備えるとともに、
前記中高温配管部品断熱材が、前記タンク断熱材との間に当該配管及び部品の一部分を挟んで該タンク断熱材に固定されていることを特徴とする。 The hot water storage type hot water supply system according to the present invention is:
A hot water storage tank in which hot water boiled by the heating means is stored;
A hot water supply circuit for supplying hot water in the hot water storage tank to a hot water supply destination through mixing means for hot water taps;
A tank insulation covering the hot water storage tank;
An exterior housing that houses at least a hot water storage tank;
In a hot water storage system with
Provided in each of the heating means and the hot water supply circuit, provided with a medium and high temperature pipe component heat insulating material that covers at least a part of the pipe and components that are medium and high temperature,
The intermediate / high temperature pipe component heat insulating material is fixed to the tank heat insulating material with a part of the pipe and the component sandwiched between the tank heat insulating material and the tank heat insulating material.

本発明の貯湯式給湯システムは、中高温の湯が流れる配管と部品を断熱材で覆いつつ当該断熱材をタンク断熱材に結合することにより、中高温となる配管及び部品（以下「中高温配管部品」という）からの放熱の抑制、簡易かつ安価な中高温配管部品の支持固定、貯湯タンクの断熱性能の強化、の３点のメリットを同時に実現できるので、高いコストパフォーマンスで省エネルギー性を向上できるという効果を奏する。   The hot water storage type hot water supply system of the present invention comprises pipes and components (hereinafter referred to as “medium / high temperature pipes) that become medium to high temperature by covering the pipes and parts through which hot water of medium and high temperature flows with the heat insulating material and joining the heat insulating material to the tank heat insulating material. It is possible to simultaneously achieve the following three merits: suppression of heat dissipation from the "components", support and fixing of simple and inexpensive medium- and high-temperature piping parts, and enhancement of the heat insulation performance of the hot water storage tank, thus improving energy savings with high cost performance. There is an effect.

本発明の実施の形態１に係る貯湯式給湯システムの構成図である。It is a block diagram of the hot water storage type hot water supply system which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る貯湯式給湯システムの断熱材構造を示す概要図である。It is a schematic diagram which shows the heat insulating material structure of the hot water storage type hot-water supply system which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る貯湯式給湯システムの断熱材構造における自然対流発生の説明図である。It is explanatory drawing of natural convection generation | occurrence | production in the heat insulating material structure of the hot water storage type hot-water supply system which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る貯湯式給湯システムの断熱材構造における別の自然対流発生の説明図である。It is explanatory drawing of another natural convection generation | occurrence | production in the heat insulating material structure of the hot water storage type hot-water supply system which concerns on Embodiment 1 of this invention. 本発明の実施の形態２に係る断熱材構造における自然対流抑制の概要図である。It is a schematic diagram of the natural convection suppression in the heat insulating material structure which concerns on Embodiment 2 of this invention.

実施の形態１．
まず、本発明の実施の形態１に係る貯湯式給湯システムの構成について説明する。図１はその構成図である。また、以下の説明では、中高温の湯が循環または流通し中高温となる配管を「中高温配管」といい、中高温配管に接続される湯栓、熱交換器、ポンプ等の各種の部品を「中高温部品」というものとする。そして、中高温配管と中高温部品の両者を総称するときは「中高温配管部品」というものとする。また、ここでいう「中高温」とは周囲温度や季節等にもよるが、一般的には水温（約２０℃〜２５℃）よりも高い温度をいう。なお、図１では、中高温配管を太い実線で示し、その他の配管は細い実線で示されている。 Embodiment 1 FIG.
First, the configuration of the hot water storage type hot water supply system according to Embodiment 1 of the present invention will be described. FIG. 1 is a configuration diagram thereof. Moreover, in the following description, a pipe in which medium-high temperature hot water circulates or circulates and becomes medium-high temperature is referred to as “medium-high temperature pipe”. Is referred to as “medium / high temperature parts”. And, when referring to both the medium and high temperature pipes and the medium and high temperature parts, they are referred to as “medium and high temperature pipe parts”. In addition, “medium / high temperature” here refers to a temperature higher than the water temperature (about 20 ° C. to 25 ° C.), although it depends on the ambient temperature and season. In FIG. 1, the medium and high temperature pipes are indicated by thick solid lines, and the other pipes are indicated by thin solid lines.

図１において、１は沸き上げられた湯が貯められる貯湯タンクであり、外装筐体２内に収容されている。この貯湯タンク１には、加熱手段１０、第１給湯回路２０、および第２給湯回路３０が接続されている。
加熱手段１０は、貯湯タンク１内の水を循環させながら加熱し沸き上げられるように循環回路にて構成されており、貯湯タンク１の下部から加熱手段１０へ水を導く加熱往き配管１１と、加熱手段１０から貯湯タンク１の上部へ湯を導く加熱戻り配管１２と、加熱往き配管１１に接続され、水や湯を循環させる加熱用ポンプ１３とから構成されている。
また、貯湯タンク１の下部には市水、上水道と繋がれた給水配管１００が接続されており、給水配管１００を通って水が貯湯タンク１に供給される。 In FIG. 1, reference numeral 1 denotes a hot water storage tank in which boiled hot water is stored, and is accommodated in an exterior housing 2. The hot water storage tank 1 is connected to a heating means 10, a first hot water supply circuit 20, and a second hot water supply circuit 30.
The heating means 10 is configured in a circulation circuit so as to be heated and boiled while circulating the water in the hot water storage tank 1, and a heating forward pipe 11 that guides water from the lower part of the hot water storage tank 1 to the heating means 10; The heating return pipe 12 guides hot water from the heating means 10 to the upper part of the hot water storage tank 1, and the heating pump 13 is connected to the heating forward pipe 11 and circulates water and hot water.
In addition, a water supply pipe 100 connected to city water and water supply is connected to the lower part of the hot water storage tank 1, and water is supplied to the hot water storage tank 1 through the water supply pipe 100.

この加熱手段１０においては、加熱往き配管１１を通って、貯湯タンク１の下部から温度の低い水が加熱手段１０に向かって流出し、加熱手段１０で沸き上げられた湯が加熱戻り配管１２を通って貯湯タンク１の上部から流入する。
なお、加熱手段１０は、例えばヒートポンプサイクル、ガス燃焼器を用いて構成される。以下の説明では加熱手段１０にヒートポンプサイクルを用いた場合について説明する。 In this heating means 10, low temperature water flows out from the lower part of the hot water storage tank 1 toward the heating means 10 through the heating outlet pipe 11, and the hot water boiled by the heating means 10 passes through the heating return pipe 12. It flows from the upper part of the hot water storage tank 1 through.
In addition, the heating means 10 is comprised, for example using a heat pump cycle and a gas combustor. In the following description, a case where a heat pump cycle is used for the heating means 10 will be described.

第１給湯回路２０は、貯湯タンク１の湯を湯栓用混合手段２２を介して給湯先に供給する管路であり、貯湯タンク１の上部と湯栓用混合手段２２とを繋ぐ湯栓用導出配管２１と、湯栓用混合手段２２と給湯先とを繋ぐ湯栓往き配管２３とを有する。湯栓用混合手段２２は、例えば三方弁からなっている。この湯栓用混合手段２２には、湯栓用導出配管２１と湯栓往き配管２３が接続される一方、給水配管１００から分岐された湯栓用給水配管１０１が接続され、湯栓用混合手段２２で貯湯タンク１からの高温の湯と湯栓用給水配管１０１からの低温の水とを混合して適温に調節された湯が湯栓往き配管２３を通って給湯先に供給される。給湯先としては、台所や洗面所、浴室等に設置された蛇口、シャワー、浴槽４０といった湯栓である。また、床暖房に利用する場合には、第１給湯回路２０は循環回路に構成される。   The first hot water supply circuit 20 is a pipe that supplies hot water from the hot water storage tank 1 to the hot water supply destination via the hot water tap mixing means 22, and is used for a hot water tap that connects the upper part of the hot water storage tank 1 and the hot water tap mixing means 22. It has a lead-out pipe 21 and a hot-water supply pipe 23 that connects the hot-water tap mixing means 22 and the hot water supply destination. The hot water tap mixing means 22 is composed of, for example, a three-way valve. The hot water mixer 22 is connected to a hot water outlet piping 21 and a hot water outlet piping 23, and is connected to a hot water supply pipe 101 branched from the water supply pipe 100. At 22, hot water from hot water storage tank 1 and low temperature water from hot water tap water supply pipe 101 are mixed and hot water adjusted to an appropriate temperature is supplied to hot water supply destination through hot water tap outlet pipe 23. As hot water supply destinations, taps such as faucets, showers, and bathtubs 40 installed in kitchens, washrooms, bathrooms, and the like are used. Moreover, when using for floor heating, the 1st hot water supply circuit 20 is comprised by the circulation circuit.

第２給湯回路３０は、浴槽水の追い焚きが可能な追焚熱交換器３１を有する管路である。追焚熱交換器３１には、貯湯タンク上部の高温の湯を導く追焚往き配管３２と、追焚熱交換器３１から貯湯タンク１に熱交換後の湯を追焚用ポンプ３４を介して貯湯タンク１に戻す追焚戻り配管３３とが接続される一方、湯温が下がった浴槽水を浴槽用ポンプ３５を介して追焚熱交換器３１に導く浴槽戻り配管３６と、追焚熱交換器３１から浴槽４０に熱交換後の湯を戻す浴槽往き配管３７とが接続されている。   The 2nd hot water supply circuit 30 is a pipe line which has the recuperation heat exchanger 31 which can replenish bathtub water. The remedy heat exchanger 31 includes a remedy piping 32 that guides hot water in the upper part of the hot water storage tank, and hot water after heat exchange from the remedy heat exchanger 31 to the hot water storage tank 1 via the remedy pump 34. A remedy return pipe 33 that returns to the hot water storage tank 1 is connected, and a tub return pipe 36 that guides the bath water whose temperature has been lowered to the remedy heat exchanger 31 through the bathtub pump 35, and a remedy heat exchange. A bathtub return pipe 37 that returns hot water after heat exchange from the vessel 31 to the bathtub 40 is connected.

この第２給湯回路３０においては、貯湯タンク１内の高温の湯を追焚用ポンプ３４により追焚往き配管３２及び追焚戻り配管３３を通して追焚熱交換器３１に循環させるとともに、浴槽水を浴槽用ポンプ３５により浴槽往き配管３６及び浴槽戻り配管３７を通して追焚熱交換器３１に循環させる。その際、追焚熱交換器３１においては、貯湯タンク１内の高温の湯と湯温の下がった浴槽水とが熱交換されるので、浴槽水を適温の湯に昇温（追い焚き）することができる。   In the second hot water supply circuit 30, the hot water in the hot water storage tank 1 is circulated to the remedy heat exchanger 31 through the remedy delivery pipe 32 and the remedy return pipe 33 by the remedy pump 34, and the bath water is supplied. The bath pump 35 is circulated through the bathtub return pipe 36 and the bathtub return pipe 37 to the memory heat exchanger 31. At that time, in the recuperation heat exchanger 31, the hot water in the hot water storage tank 1 and the bath water that has fallen hot water are heat-exchanged, so that the temperature of the bath water is raised (heated) to an appropriate temperature. be able to.

ここで、加熱手段１０で湯に沸き上げる際に中高温の湯が循環する加熱戻り配管１２と、ユーザーによる湯栓からの湯の使用に際して中高温の湯が循環する湯栓用導出配管２１と湯栓往き配管２３と、浴槽の湯が冷めた時に貯湯タンク上部の高温の湯との熱交換にて追い焚きを行う際に中高温の湯が循環する追焚往き配管３２、追焚戻り配管３３、浴槽戻り配管３６、浴槽往き配管３７とは、本発明における「中高温配管」に相当する。
また、上記中高温配管と接続される部品（湯栓用混合手段２２、追焚熱交換器３２、追焚用ポンプ３４、浴槽用ポンプ３５）は、本発明における「中高温部品」に相当する。 Here, a heating return pipe 12 through which medium-high temperature hot water circulates when boiling into hot water by the heating means 10, and a hot-water tap outlet pipe 21 through which medium-high temperature hot water circulates when the user uses hot water from the hot water tap, Hot water outlet piping 23, and hot water in the upper part of the hot water storage tank when the hot water in the upper part of the hot water storage tank is reheated for reheating, medium hot water circulating in the hot water piping 32, and hot water return piping 33, the bathtub return pipe 36, and the bathtub return pipe 37 correspond to the “medium / high temperature pipe” in the present invention.
In addition, the components (mixer 22 for hot-water taps, additional heat exchanger 32, additional pump 34, additional pump 35 for bathtubs) connected to the intermediate / high temperature pipe correspond to “intermediate / high temperature components” in the present invention. .

そして、貯湯タンク１から周囲環境への放熱を抑制するために、貯湯タンク１の全体が適宜の断熱材（タンク断熱材）３で覆われている。さらに、中高温配管や中高温部品からの周囲環境への放熱を抑制するために、これらの中高温配管部品の少なくとも一部分が適宜の断熱材（中高温配管部品断熱材）４で覆われている。ここで、図１の構成例では、中高温配管部品のうち湯栓用導出配管２１と湯栓用混合手段２２を中高温配管部品断熱材４に収容しない構成を例示したが、これらの配管部品を含めて収容する構成としても良い。   The entire hot water storage tank 1 is covered with an appropriate heat insulating material (tank heat insulating material) 3 in order to suppress heat dissipation from the hot water storage tank 1 to the surrounding environment. Furthermore, at least a part of these medium / high temperature pipe parts is covered with an appropriate heat insulating material (medium / high temperature pipe part heat insulating material) 4 in order to suppress heat radiation from the medium / high temperature pipes and medium / high temperature parts to the surrounding environment. . Here, in the configuration example of FIG. 1, a configuration in which the hot water outlet piping 21 and the hot water mixing means 22 are not accommodated in the intermediate and high temperature piping component heat insulating material 4 among the medium and high temperature piping components is illustrated. It is good also as a structure which accommodates.

図２は、上記のタンク断熱材３及び中高温配管部品断熱材４の構造を示す図で、同図の上図は下図のＡ−Ａにおける半断面の上面図であり、下図は両断熱材３、４による収容部を示す断面正面図である。また、図３は、図２と同様の断面図であるが、断熱材構造における自然対流発生の説明図である。
図２に示すように、タンク断熱材３には、外周面に、例えば上下方向に延びる凹部５が設けられており、一方、中高温配管部品断熱材４には凹部５に嵌め込まれる凸部６が設けられている。したがって、中高温配管部品断熱材４は凸部６をタンク断熱材３の凹部５に嵌合することによりタンク断熱材３に固定される。なお、凹部５と凸部６は上記とは反対の関係で設けてもよいし、またタンク断熱材３の周方向の上下に、凹部または凸部を設けてもよい。 FIG. 2 is a diagram showing the structure of the tank heat insulating material 3 and the medium / high temperature pipe component heat insulating material 4. The upper diagram is a top view of a half section taken along the line A-A in the lower diagram, and the lower diagram is the both heat insulating materials. It is a cross-sectional front view which shows the accommodating part by 3,4. 3 is a cross-sectional view similar to FIG. 2, but is an explanatory view of the occurrence of natural convection in the heat insulating material structure.
As shown in FIG. 2, the tank heat insulating material 3 is provided with, for example, a concave portion 5 extending in the vertical direction on the outer peripheral surface, while the middle heat pipe member heat insulating material 4 has a convex portion 6 fitted in the concave portion 5. Is provided. Therefore, the intermediate / high temperature piping component heat insulating material 4 is fixed to the tank heat insulating material 3 by fitting the convex portion 6 into the concave portion 5 of the tank heat insulating material 3. In addition, the recessed part 5 and the convex part 6 may be provided in the opposite relationship to the above, and a recessed part or a convex part may be provided above and below the circumferential direction of the tank heat insulating material 3.

また、両断熱材３、４の間には、中高温配管部品の一部を収容する収容スペース７が形成されており、当該中高温配管部品の一部を両断熱材３、４の間に挟んだ形で収容している。   Further, a housing space 7 for accommodating a part of the medium / high temperature piping component is formed between both the heat insulating materials 3, 4, and a part of the medium / high temperature piping component is interposed between the both heat insulating materials 3, 4. Housed in a sandwiched form.

また、中高温配管部品断熱材４は、図３に示すように、凹部５、凸部６を設けても、貯湯タンク１に対してタンク断熱材３の一部の厚さｔ２を増加させることで、両断熱材３、４の合計厚さｔ１が増加（ｔ１＞ｔ２）するため、断熱性能を向上させることに相当する構成とすることができる。   Further, as shown in FIG. 3, the intermediate / high temperature pipe component heat insulating material 4 increases the thickness t2 of a part of the tank heat insulating material 3 relative to the hot water storage tank 1 even if the concave portion 5 and the convex portion 6 are provided. Therefore, since the total thickness t1 of both the heat insulating materials 3 and 4 increases (t1> t2), it can be set as the structure equivalent to improving heat insulation performance.

ここで、中高温配管部品断熱材４とタンク断熱材３との固定方法によって断熱性能に大きな差は無いが、中高温配管部品断熱材４とタンク断熱材３との各々に凹凸部の組合せを備えて嵌合結合にて固定し、さらに粘着テープなどで補助する構成にすれば、金属やプラスチックなどの硬質の支持具を特別に備える必要が無く、低コストで両者を支持固定することができる。   Here, there is no significant difference in heat insulation performance depending on the fixing method between the medium and high temperature pipe component heat insulating material 4 and the tank heat insulating material 3, but the combination of uneven portions is provided on each of the medium and high temperature pipe component heat insulating material 4 and the tank heat insulating material 3. If it is provided and fixed by fitting and coupling, and further supported by adhesive tape or the like, it is not necessary to specially provide a hard support such as metal or plastic, and both can be supported and fixed at low cost. .

また、中高温配管部品の内で中高温配管部品断熱材４に覆われる一部分は、集中的に配置しても散在的に互いに離して配置しても良いが、中高温配管部品断熱材４に使用する断熱材を減らすため、また組立て作業を容易にするために、図１に示したようにある程度集中して配置することが好ましい。
またこのとき、中高温配管部品の間での熱交換を抑制するために、ある程度の間隔を空けて配置しても良い。或いは、間に断熱材を配置する構成としても良い。また、中高温配管を略中空円筒形状の断熱材で別途断熱する構成としても良い。 In addition, a part of the medium / high temperature pipe component covered with the medium / high temperature pipe component heat insulating material 4 may be centrally arranged or scattered and separated from each other. In order to reduce the heat insulating material to be used and to facilitate the assembling work, it is preferable to arrange them to some extent as shown in FIG.
Further, at this time, in order to suppress heat exchange between the medium and high temperature pipe parts, they may be arranged with a certain interval. Or it is good also as a structure which arrange | positions a heat insulating material in between. Moreover, it is good also as a structure which heat-insulates medium-high temperature piping separately with a substantially hollow cylindrical heat insulating material.

また、一般的に略円筒形状の貯湯タンク１と略角柱形状の外装筐体２との間には水平方向に隙間（空間）の大きい部分が形成されることが多いが、この隙間８には温度分布が生じ易く、図３に破線の矢印で示すような自然対流が生じて放熱を助長し易い。そこで、前記の中高温配管部品断熱材４はこの自然対流を阻止するために、隙間８を埋めるように配置される。   In general, a large gap (space) is often formed in the horizontal direction between the substantially cylindrical hot water storage tank 1 and the substantially prismatic outer casing 2. A temperature distribution is likely to occur, and natural convection as shown by a broken arrow in FIG. 3 is generated to facilitate heat dissipation. Therefore, the intermediate / high-temperature pipe component heat insulating material 4 is disposed so as to fill the gap 8 in order to prevent this natural convection.

ここで、隙間８での温度分布とは、貯湯タンク１内の上部が高温で下部が低温であることに起因する垂直方向の温度分布や、貯湯タンク１に近い空気は暖められ易く、外装筐体２に近い空気は冷やされ易いことに起因する水平方向の温度分布をいう。   Here, the temperature distribution in the gap 8 means that the temperature distribution in the vertical direction caused by the high temperature in the hot water storage tank 1 and the low temperature in the lower temperature, and the air close to the hot water storage tank 1 are easily heated. Air close to the body 2 refers to a horizontal temperature distribution resulting from being easily cooled.

なお、本発明はここに示した形態に限らず、例えば、浴槽の湯を追焚せず湯栓からの出湯のみを行うシステムであって、追焚熱交換器３１、追焚用ポンプ３４、浴槽用ポンプ３５、追焚往き配管３２、追焚戻り配管３３、浴槽往き配管３７、浴槽戻り配管３６を備えないシステムに対しても適用することができる。この場合、加熱戻り配管１２、湯栓用導出配管２１、湯栓往き配管２３が「中高温配管」に相当し、湯栓用混合手段２２が「中高温部品」に相当し、中高温配管部品断熱材４はそれら中高温配管、及び、中高温部品の一部分を覆いながらタンク断熱材３に固定される。   Note that the present invention is not limited to the embodiment shown here, for example, a system that does not remedy hot water in a bathtub and performs only hot water from a hot water tap, and includes a remedy heat exchanger 31, a remedy pump 34, The present invention can also be applied to a system that does not include the bathtub pump 35, the follow-up pipe 32, the follow-up return pipe 33, the bathtub return pipe 37, and the bathtub return pipe 36. In this case, the heating return pipe 12, the tap outlet pipe 21, and the tap outlet pipe 23 correspond to “medium / high temperature pipe”, and the tap mixing means 22 corresponds to “medium / high temperature part”. The heat insulating material 4 is fixed to the tank heat insulating material 3 while covering a part of the medium and high temperature pipes and the medium and high temperature parts.

以上のように、本実施の形態１において、中高温配管部品の一部分を、中高温配管部品断熱材４とタンク断熱材３とで挟んで支持固定することにより、中高温配管部品からの放熱の抑制、簡易かつ安価な中高温配管部品の支持固定、貯湯タンクの断熱性能の強化、の３点のメリットを同時に実現するため、高いコストパフォーマンスでシステムの省エネルギー性を向上することができる。   As described above, in the first embodiment, a part of the medium / high temperature piping component is supported and fixed by being sandwiched between the medium / high temperature piping component heat insulating material 4 and the tank heat insulating material 3, thereby releasing heat from the medium / high temperature piping component. Since the three merits of suppression, simple and inexpensive support and fixing of medium- and high-temperature piping parts, and enhancement of the heat insulation performance of the hot water storage tank are realized at the same time, the energy-saving performance of the system can be improved with high cost performance.

また、本実施の形態１においては、浴槽の追焚機能を有する貯湯式給湯システムに対しても、中高温配管部品の一部分を、中高温配管部品断熱材４とタンク断熱材３とで挟んで支持固定することにより、中高温配管部品からの放熱の抑制、簡易かつ安価な中高温配管部品の支持固定、貯湯タンクの断熱性能の強化、の３点のメリットを同時に実現するため、高いコストパフォーマンスでシステムの省エネルギー性を向上することができる。   Moreover, in this Embodiment 1, also with respect to the hot water storage type hot-water supply system which has the tub's memorial function, a part of medium-high temperature piping component is pinched | interposed with the medium-high temperature piping component heat insulating material 4 and the tank heat insulating material 3. By supporting and fixing, high cost performance is achieved by simultaneously realizing the three merits of suppressing heat dissipation from medium and high temperature piping parts, supporting and fixing simple and inexpensive medium and high temperature piping parts, and enhancing heat insulation performance of hot water storage tanks. In this way, the energy saving performance of the system can be improved.

また、本実施の形態１においては、中高温配管部品断熱材４とタンク断熱材３とを各々に設けた凹凸部の組合せによって嵌合結合して固定する構成とすることで上記効果を奏するので、より高いコストパフォーマンスでシステムの省エネルギー性を向上することができる。   Further, in the present embodiment 1, the above-described effect is achieved by adopting a configuration in which the medium and high temperature pipe component heat insulating material 4 and the tank heat insulating material 3 are fitted and fixed by a combination of uneven portions provided respectively. The energy saving performance of the system can be improved with higher cost performance.

また、本実施の形態１においては、中高温配管部品断熱材４で覆われる少なくとも二つ以上の配管部品を互いに近い位置に集中配置することにより、中高温配管部品断熱材をできるだけ少ない断熱材で作成するので、より高いコストパフォーマンスでシステムの省エネルギー性を向上することができる。   Further, in the first embodiment, at least two or more pipe parts covered with the medium / high temperature pipe part heat insulating material 4 are concentratedly arranged at positions close to each other, thereby reducing the medium / high temperature pipe part heat insulating material with as little heat insulating material as possible. Since it is created, the energy saving performance of the system can be improved with higher cost performance.

また、本実施の形態１においては、中高温配管部品断熱材４が貯湯タンク１と外装筐体２との水平方向の隙間８を埋めるように配置されるため、その隙間８での自然対流を抑制して、更に放熱を抑制することができるので、より高いコストパフォーマンスで省エネルギー性を向上することができる。   Moreover, in this Embodiment 1, since the medium-high temperature piping component heat insulating material 4 is arrange | positioned so that the horizontal gap 8 of the hot water storage tank 1 and the exterior housing | casing 2 may be filled, the natural convection in the clearance gap 8 is carried out. Since it can suppress and can further suppress heat dissipation, energy-saving property can be improved with higher cost performance.

実施の形態２．
本実施の形態２においては、中高温配管部品断熱材４とタンク断熱材３とに囲まれた、中高温配管部品を収容する収容スペース７内部での自然対流を抑制する構成について、図４、図５を参照して説明する。図４は、図２と同様の断面図で、収容スペース７内部で生じる自然対流を表したものであり、図５はこの収容スペース７内部での自然対流を抑制する構造図である。
なお、本実施の形態２における貯湯式給湯システムの構成は、上記実施の形態１と同様であり、同一部分には同一符号を付する。 Embodiment 2. FIG.
In this Embodiment 2, about the structure which suppresses the natural convection inside the storage space 7 which accommodates the medium-high temperature piping component heat insulating material 4 and the tank heat insulating material 3 which accommodates the medium-high temperature piping component, FIG. This will be described with reference to FIG. FIG. 4 is a cross-sectional view similar to FIG. 2, showing natural convection occurring inside the accommodation space 7, and FIG. 5 is a structural diagram for suppressing natural convection inside the accommodation space 7.
In addition, the structure of the hot water storage type hot-water supply system in this Embodiment 2 is the same as that of the said Embodiment 1, and attaches | subjects the same code | symbol to the same part.

中高温配管部品を収容する収容スペース７は、断熱のためには中高温配管部品の占める空間以外はできるだけ隙間を空けずに断熱材を充満することが望ましいが、低コストのためには使用する断熱材の量が少ない方が望ましい。   The accommodation space 7 for accommodating the medium / high temperature piping parts is preferably filled with a heat insulating material without gaps as much as possible except for the space occupied by the medium / high temperature piping parts, but is used for low cost. A smaller amount of insulation is desirable.

しかし断熱材の量が少なく、収容スペース７の隙間が大きいと、図４に示したように、収容スペース内部で自然対流が生じてしまい、中高温配管部品、及び、貯湯タンク１の断熱性能を低下させる原因となる。なお、収容スペース内部での自然対流は、貯湯タンク上下の温度差に従って収容スペース内部でも上下の温度差が生じやすいことに起因する。   However, if the amount of the heat insulating material is small and the gap in the storage space 7 is large, natural convection occurs inside the storage space as shown in FIG. 4, and the heat insulation performance of the medium / high temperature piping parts and the hot water storage tank 1 is reduced. It causes a decrease. Note that the natural convection inside the accommodation space is caused by the fact that the temperature difference between the upper and lower sides of the hot water storage tank is likely to occur according to the temperature difference between the upper and lower sides of the hot water storage tank.

従って、本実施の形態２においては図５に示すように、中高温配管部品を収容する収容スペース７に上方と下方を仕切る仕切り部９を設ける。   Therefore, in the second embodiment, as shown in FIG. 5, a partition portion 9 that partitions the upper portion and the lower portion is provided in the storage space 7 that stores the medium / high temperature piping component.

このように仕切り部９を設けることにより、仕切り部９の上方と下方の収容スペースそれぞれの内部での温度差が小さくなるので、自然対流を低減することができる。また仕切り部９があることにより直接的に、自然対流の流れを抑制する働きを果たす。   By providing the partition part 9 in this way, the temperature difference between the upper and lower storage spaces of the partition part 9 is reduced, so that natural convection can be reduced. In addition, the presence of the partition 9 serves to directly suppress the flow of natural convection.

以上のように、本実施の形態２において、中高温配管部品を収容する収容スペース７に上方と下方を仕切る仕切り部９を設けることにより、中高温配管部品を収容する収容スペース７に隙間が大きい場合であっても自然対流を抑制することができ、より少ない断熱材で貯湯タンク１と中高温配管部品の断熱性能を高めることができる。   As described above, in the second embodiment, by providing the partitioning portion 9 that partitions the upper portion and the lower portion in the accommodating space 7 that accommodates the intermediate / high temperature piping component, the clearance is large in the accommodating space 7 that accommodates the intermediate / high temperature piping component. Even if it is a case, a natural convection can be suppressed and the heat insulation performance of the hot water storage tank 1 and a medium-high temperature piping component can be improved with fewer heat insulating materials.

１ 貯湯タンク、２ 外装筐体、３ タンク断熱材、４ 中高温配管部品断熱材、５ 凹部、６ 凸部、７ 収容スペース、８ 隙間、９ 仕切り部、１０ 加熱手段、１１ 加熱往き配管、１２ 加熱戻り配管、１３ 加熱用ポンプ、２０ 第１給湯回路、２１ 湯栓用導出配管、２２ 湯栓用混合手段、２３ 湯栓往き配管、３０ 第２給湯回路、３１ 追焚熱交換器、３２ 追焚往き配管、３３ 追焚戻り配管、３４ 追焚用ポンプ、３５ 浴槽用ポンプ、３６ 浴槽戻り配管、３７ 浴槽往き配管、４０ 浴槽、１００ 給水配管、１０１ 湯栓用給水配管。   DESCRIPTION OF SYMBOLS 1 Hot water storage tank, 2 Exterior casing, 3 Tank heat insulating material, 4 Medium-high temperature piping component heat insulating material, 5 Recessed part, 6 Convex part, 7 Storage space, 8 Crevice, 9 Partition part, 10 Heating means, 11 Heating piping, 12 Heating return pipe, 13 Heating pump, 20 First hot water supply circuit, 21 Hot water tap outlet pipe, 22 Hot water tap mixing means, 23 Hot water tap outgoing pipe, 30 Second hot water supply circuit, 31 Reheating heat exchanger, 32 Additional Outward piping, 33 additional return piping, 34 additional pump, 35 bathtub pump, 36 bathtub return piping, 37 bathtub outgoing piping, 40 bathtub, 100 water supply piping, 101 hot water supply piping.

Claims (6)

加熱手段で沸き上げられた湯が貯留される貯湯タンクと、
前記貯湯タンク内の湯を湯栓用混合手段を介して給湯先に供給する給湯回路と、
前記貯湯タンクを覆うタンク断熱材と、
少なくとも貯湯タンクを収容する外装筐体と、
を備えた貯湯式給湯システムにおいて、
前記加熱手段及び前記給湯回路の各々に設けられ、中高温となる配管及び部品の少なくとも一部分を覆う中高温配管部品断熱材を備えるとともに、
前記中高温配管部品断熱材が、前記タンク断熱材との間に当該配管及び部品の一部分を挟んで該タンク断熱材に固定されていることを特徴とする貯湯式給湯システム。 A hot water storage tank in which hot water boiled by the heating means is stored;
A hot water supply circuit for supplying hot water in the hot water storage tank to a hot water supply destination through mixing means for hot water taps;
A tank insulation covering the hot water storage tank;
An exterior housing that houses at least a hot water storage tank;
In a hot water storage system with
Provided in each of the heating means and the hot water supply circuit, provided with a medium and high temperature pipe component heat insulating material that covers at least a part of the pipe and components that are medium and high temperature,
The hot water storage type hot water supply system, wherein the intermediate and high temperature pipe component heat insulating material is fixed to the tank heat insulating material with a part of the pipe and the part sandwiched between the tank heat insulating material. 加熱手段で沸き上げられた湯が貯留される貯湯タンクと、
前記貯湯タンク内の湯を湯栓用混合手段を介して給湯先に供給する第１給湯回路と、
前記貯湯タンク内の湯と浴槽内の水と熱交換する追焚き熱交換器を有する第２給湯回路と、
前記貯湯タンクを覆うタンク断熱材と、
少なくとも貯湯タンクを収容する外装筐体と、
を備えた貯湯式給湯システムにおいて、
前記加熱手段、前記第１給湯回路及び前記第２給湯回路の各々に設けられ、中高温となる配管及び部品の一部分を覆う中高温配管部品断熱材を備えるとともに、
前記中高温配管部品断熱材が、前記タンク断熱材との間に当該配管及び部品の一部分を挟んで該タンク断熱材に固定されていることを特徴とする貯湯式給湯システム。 A hot water storage tank in which hot water boiled by the heating means is stored;
A first hot water supply circuit for supplying hot water in the hot water storage tank to a hot water supply destination through mixing means for hot water taps;
A second hot water supply circuit having a reheating heat exchanger for exchanging heat between the hot water in the hot water storage tank and the water in the bathtub;
A tank insulation covering the hot water storage tank;
An exterior housing that houses at least a hot water storage tank;
In a hot water storage system with
Provided in each of the heating means, the first hot-water supply circuit and the second hot-water supply circuit, and provided with a medium-high temperature pipe component heat insulating material covering a part of the pipe and parts that become medium and high temperature,
The hot water storage type hot water supply system, wherein the intermediate and high temperature pipe component heat insulating material is fixed to the tank heat insulating material with a part of the pipe and the part sandwiched between the tank heat insulating material. 前記タンク断熱材と前記中高温配管部品断熱材とは、凹部と凸部の嵌合により結合し固定されていることを特徴とする請求項１または２に記載の貯湯式給湯システム。   The hot water storage type hot water supply system according to claim 1 or 2, wherein the tank heat insulating material and the medium / high temperature pipe component heat insulating material are coupled and fixed by fitting a concave portion and a convex portion. 前記中高温となる配管及び部品のうち少なくとも二つ以上の配管及び部品が前記中高温配管部品断熱材で覆われ、
当該二つ以上の配管及び部品の前記中高温配管部品断熱材に覆われる部分は、互いに近い位置に配置されていることを特徴とする請求項１〜３のいずれかに記載の貯湯式給湯システム。 At least two or more pipes and parts among the pipes and parts that become medium and high temperatures are covered with the medium and high temperature pipe parts heat insulating material,
The hot water storage type hot water supply system according to any one of claims 1 to 3, wherein portions of the two or more pipes and parts covered by the medium / high temperature pipe part heat insulating material are arranged at positions close to each other. . 前記中高温配管部品断熱材は、前記貯湯タンクと前記外装筐体との間の水平方向間隔が大きい部分に配置されていることを特徴とする請求項１〜４のいずれかに記載の貯湯式給湯システム。   The hot water storage system according to any one of claims 1 to 4, wherein the intermediate / high temperature pipe component heat insulating material is disposed in a portion where a horizontal interval between the hot water storage tank and the exterior casing is large. Hot water system. 前記中高温となる配管及び部品を収容する、前記中高温配管部品断熱材と前記タンク断熱材との間の収容スペースに、上方と下方とを分ける仕切り部を有することを特徴とする請求項１〜５のいずれかに記載の貯湯式給湯システム。   2. A partition portion for separating the upper portion and the lower portion is provided in a housing space between the intermediate and high temperature pipe component heat insulating material and the tank heat insulating material, which accommodates the medium and high temperature piping and components. The hot water storage hot water supply system according to any one of?
JP2009275796A 2009-12-03 2009-12-03 Storage type hot water supply system Pending JP2011117672A (en)

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JP2013092328A (en) * 2011-10-27 2013-05-16 Noritz Corp Hot water storage water heater
JP2013185740A (en) * 2012-03-07 2013-09-19 Mitsubishi Electric Corp Heat insulation material for hot water storage tank and hot water storage type water heater
JP2013221695A (en) * 2012-04-17 2013-10-28 Mitsubishi Electric Corp Hot water storage type water heater
JP2013249972A (en) * 2012-05-30 2013-12-12 Noritz Corp Cogeneration system and hot water storage tank unit
JP2014013110A (en) * 2012-07-04 2014-01-23 Corona Corp Hot water storage type hot water supply system

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JP2013092328A (en) * 2011-10-27 2013-05-16 Noritz Corp Hot water storage water heater
JP2013185740A (en) * 2012-03-07 2013-09-19 Mitsubishi Electric Corp Heat insulation material for hot water storage tank and hot water storage type water heater
JP2013221695A (en) * 2012-04-17 2013-10-28 Mitsubishi Electric Corp Hot water storage type water heater
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