JP6014720B2 - TANK UNIT, ITS MANUFACTURING METHOD, AND HOT WATER SUPPLY SYSTEM - Google Patents

TANK UNIT, ITS MANUFACTURING METHOD, AND HOT WATER SUPPLY SYSTEM Download PDF

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JP6014720B2
JP6014720B2 JP2015108065A JP2015108065A JP6014720B2 JP 6014720 B2 JP6014720 B2 JP 6014720B2 JP 2015108065 A JP2015108065 A JP 2015108065A JP 2015108065 A JP2015108065 A JP 2015108065A JP 6014720 B2 JP6014720 B2 JP 6014720B2
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heat insulating
insulating material
hot water
box
exterior
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JP2015148438A (en
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伏木 隆之
隆之 伏木
井関 崇
崇 井関
祐之 山▲崎▼
祐之 山▲崎▼
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Hitachi Appliances Inc
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Description

本発明は、タンクユニット、その製造方法及び給湯システムに関するものである。   The present invention relates to a tank unit, a manufacturing method thereof, and a hot water supply system.

従来のタンクユニットは、貯湯タンクと、貯湯タンクの周囲を覆う複数の成形断熱材と、成形断熱材の周囲を覆う外装材を備えている(例えば特許文献1)。また、タンクユニ
ットの断熱材として発泡性断熱材を注入するものがある(例えば特許文献2)。タンクユ
ニットは、一般的に風雨にさらされる屋外に設置される。
A conventional tank unit includes a hot water storage tank, a plurality of molded heat insulating materials covering the periphery of the hot water storage tank, and an exterior material covering the periphery of the molded heat insulating material (for example, Patent Document 1). Moreover, there exists what injects a foaming heat insulating material as a heat insulating material of a tank unit (for example, patent document 2). The tank unit is generally installed outdoors exposed to wind and rain.

特開2011−106791号公報JP 2011-106791 A 特開昭58−160758号公報JP 58-160758 A

従来のタンクユニットは、グラスウール(熱伝導率0.042W/m・K)やポリスチレン製(熱伝導率0.034W/m・K)の複数の成形断熱材を勘合させて使用している。しかしながら、成形断熱材の勘合部の隙間により熱漏洩が大きくなり、想定した断熱性能が得られない場合があった。   A conventional tank unit uses glass wool (thermal conductivity 0.042 W / m · K) or polystyrene (thermal conductivity 0.034 W / m · K) in combination with a plurality of molded heat insulating materials. However, heat leakage increases due to the gap between the fitting portions of the molded heat insulating material, and the assumed heat insulating performance may not be obtained.

また、断熱性の向上のため、真空断熱材を使用している例では、曲面である貯湯タンクの外壁に対し、板状の真空断熱材を貼り付けるため、真空断熱材の反発力による剥がれ防止のため、両面テープや接着剤の塗布などの多くの工数を要していた。成形断熱材で貯湯タンクの外壁や外装材の内壁に押し付ける構成では、柔軟性の低い真空断熱材と柔軟性の低い成形断熱材の間に空間が生じ、断熱性能を低下させる要因があった。   In addition, in order to improve heat insulation, in the case of using vacuum heat insulating material, a plate-shaped vacuum heat insulating material is attached to the outer wall of the hot water storage tank, which is a curved surface, preventing peeling due to the repulsive force of the vacuum heat insulating material Therefore, many man-hours such as application of double-sided tape and adhesive are required. In the configuration in which the molded heat insulating material is pressed against the outer wall of the hot water storage tank or the inner wall of the exterior material, a space is generated between the vacuum flexible heat insulating material having low flexibility and the molded heat insulating material having low flexibility, which causes a decrease in heat insulating performance.

また、外装材は周端を曲げ加工した薄板を組み合わせたものであり、強度が十分なものではないという問題があった。   In addition, the exterior material is a combination of thin plates whose peripheral ends are bent, and there is a problem that the strength is not sufficient.

また、ウレタン(熱伝導率0.029W/m・K)などの発泡性断熱材を注入した従来のタンクユニットでは、外装材の防水構造が十分にされていない問題があった。ウレタンなどの発泡性断熱材は水分を含むと断熱性能および強度の低下が進行する特性があり、発泡性断熱材と水分とが接触しないようには防水構造を十分にしなければならない問題があった。   Moreover, in the conventional tank unit which injected foaming heat insulating materials, such as urethane (thermal conductivity 0.029 W / m * K), there existed a problem that the waterproof structure of the exterior material was not fully made. Foaming insulation materials such as urethane have the characteristic that heat insulation performance and strength decrease when moisture is included, and there is a problem that the waterproof structure must be sufficient so that the foaming insulation material does not contact moisture .

本発明の目的は、強度、断熱性能及び防水性能に優れたタンクユニットを提供することにある。 An object of the present invention is to provide strength, excellent Tankuyuni' preparative heat insulating performance and waterproof performance.

上記目的は、水を内部に貯蔵するためのタンクと、前記タンクを収納する箱体と、前記箱体と前記タンクとの間に設けられた発泡断熱材と、前記箱体に設けられ、前記発泡断熱材注入用の開口である注入口と、前記箱体の内面に設けられ前記注入口を閉塞する断熱材漏れ防止シールと、前記注入口に面する外装材とを備え、前記注入口と前記外装材との間に前記発泡断熱材の無い空間が形成されたタンクユニットによって達成される。 The object is provided in the box, a tank for storing water therein, a box for storing the tank, a foam heat insulating material provided between the box and the tank, An injection port that is an opening for injecting foam heat insulating material, an insulating material leakage prevention seal that is provided on the inner surface of the box and closes the injection port, and an exterior material that faces the injection port, This is achieved by a tank unit in which a space without the foam heat insulating material is formed between the exterior material and the exterior material .

本発明によれば、強度、断熱性能及び防水性能に優れたタンクユニットを提供することができる。
According to the present invention, it is possible to provide strength, excellent Tankuyuni' preparative heat insulating performance and waterproof performance.

実施形態に係わるタンクユニットの正面図(a)、側面図(b)、X−X断面図(c)、Y−Y断面図(d)である。It is the front view (a), side view (b), XX sectional view (c), and YY sectional view (d) of the tank unit concerning an embodiment. 実施形態に係わるタンクユニットの展開図である。It is an expanded view of the tank unit concerning embodiment. 実施形態に係わる図1に示すタンクユニットのZ−Z断面図である。It is ZZ sectional drawing of the tank unit shown in FIG. 1 concerning embodiment. 実施形態に係わる断熱箱体図である。It is a heat insulation box figure concerning an embodiment. 実施形態に係わる断熱箱体の横断面図である。It is a cross-sectional view of the heat insulation box concerning an embodiment. 実施形態に係わる断熱箱体の真空断熱材適用例を示す図である。It is a figure which shows the vacuum heat insulating material application example of the heat insulation box concerning embodiment. 実施形態に係わる断熱箱体の上面からの発泡性断熱材の注入例を示す図である。It is a figure which shows the example of injection | pouring of the foamable heat insulating material from the upper surface of the heat insulation box concerning embodiment. 実施形態に係わる断熱箱体の下面からの発泡性断熱材の注入例を示す図である。It is a figure which shows the example of injection | pouring of the foamable heat insulating material from the lower surface of the heat insulation box concerning embodiment. 実施形態に係わる断熱箱体の下面からの発泡性断熱材の注入例を示す図である。It is a figure which shows the example of injection | pouring of the foamable heat insulating material from the lower surface of the heat insulation box concerning embodiment. 実施形態に係わる仕切り板に注入口、ガス抜き口を設けた場合の構成例を示す図である。It is a figure which shows the structural example at the time of providing the inlet and the gas vent in the partition plate concerning embodiment. 実施形態に係わるタンクユニットの構成例を示す図である。It is a figure which shows the structural example of the tank unit concerning embodiment. 実施形態に係わる給湯システムの構成例を示す図である。It is a figure showing an example of composition of a hot-water supply system concerning an embodiment.

以下、実施例を図面を用いて説明する。   Hereinafter, examples will be described with reference to the drawings.

まず先にヒートポンプ式の給湯システム70について、図12を用いて説明する。ヒートポンプ式の給湯システムはヒートポンプユニット40と、ヒートポンプユニット40に配管で接続されるタンクユニット30で構成され、これら給湯システムは、リモコン41を除き、屋外設置されることが多い。ヒートユニット30内には、圧縮機42、水冷媒熱交換器43、膨張弁44、空気用熱交換器45などが冷媒配管にて環状に接続され、ヒートポンプサイクルを形成して収納されている。タンクユニット30内には、貯湯タンク1と配管で接続された混合弁46、三方弁47、流量調整弁、電磁弁49、減圧弁50、逃し弁51、ポンプ52、熱交換器53が収納され、各所に設けられた温度センサー、流量センサー、フローセンサー、サーミスタ、リモコン41などの情報を制御装置55にて集約し、給湯システムを制御している。ここで、流量センサーは流体の『量』を測るものであり、フローセンサーは流体が流れているか否かを検出するものである。給湯システム70は、貯湯タンク1内の水をヒートポンプユニット40内の水冷媒熱交換器43により加熱し、湯をタンクユニット30内のタンク1に貯湯し、必要に応じて、混合弁46にて湯水を混合し、適温で湯水を供給する。   First, the heat pump type hot water supply system 70 will be described with reference to FIG. The heat pump hot water supply system includes a heat pump unit 40 and a tank unit 30 connected to the heat pump unit 40 by piping. These hot water supply systems are often installed outdoors except for the remote controller 41. In the heat unit 30, a compressor 42, a water / refrigerant heat exchanger 43, an expansion valve 44, an air heat exchanger 45, and the like are annularly connected by a refrigerant pipe and housed in a heat pump cycle. In the tank unit 30, a mixing valve 46, a three-way valve 47, a flow rate adjustment valve, a solenoid valve 49, a pressure reducing valve 50, a relief valve 51, a pump 52, and a heat exchanger 53 connected to the hot water storage tank 1 are accommodated. Information on temperature sensors, flow sensors, flow sensors, thermistors, remote controllers 41 and the like provided in various places is collected by the control device 55 to control the hot water supply system. Here, the flow sensor measures the “amount” of the fluid, and the flow sensor detects whether or not the fluid is flowing. The hot water supply system 70 heats the water in the hot water storage tank 1 by the water / refrigerant heat exchanger 43 in the heat pump unit 40, stores the hot water in the tank 1 in the tank unit 30, and uses the mixing valve 46 as necessary. Mix hot water and supply hot water at an appropriate temperature.

図1は、タンクユニット30の正面図(a)、側面図(b)、X−X断面図(c)、Y
−Y断面図(d)である。図2は、実施形態に係わるタンクユニット30の展開図である。図3は、実施形態に係わる図1に示すタンクユニットのZ−Z断面図である。
FIG. 1 is a front view (a), a side view (b), a cross-sectional view XX of a tank unit 30, and Y
It is -Y sectional drawing (d). FIG. 2 is a development view of the tank unit 30 according to the embodiment. FIG. 3 is a ZZ sectional view of the tank unit shown in FIG. 1 according to the embodiment.

図1〜3に示すように、タンクユニット30は、外装板2、外装板3、外装板4、天板9、底板10などから構成される外装箱体内に、ヒートポンプユニット40により沸き上げられた湯を貯湯する貯湯タンク1を備え、貯湯タンク1の周囲には硬質発泡ウレタンなどの発泡性断熱材16が充填されている。   As shown in FIGS. 1 to 3, the tank unit 30 was heated up by the heat pump unit 40 in the exterior box composed of the exterior plate 2, the exterior plate 3, the exterior plate 4, the top plate 9, the bottom plate 10, and the like. A hot water storage tank 1 for storing hot water is provided, and the hot water storage tank 1 is filled with a foamable heat insulating material 16 such as hard foamed urethane.

ここで発泡性断熱材16としては、ウレタンフォーム、フェノールフォーム、ポリイソシアヌレートフォーム等の合成樹脂発泡体からなる断熱材がある。但し、ポリスチレンフォーム、ポリエチレンフォーム、発泡ガラスなどは除く。   Here, as the foamable heat insulating material 16, there is a heat insulating material made of a synthetic resin foam such as urethane foam, phenol foam, polyisocyanurate foam. However, polystyrene foam, polyethylene foam, foamed glass, etc. are excluded.

発泡性断熱材16は、貯湯タンク1の外壁と、外装材2、外装材3、仕切り板5、天板補助板7、天板補助板8、底板10で構成される箱体の内壁とで構成される空間で発泡、充填されている。外装材2、外装材3は、発泡性断熱材16への水進入の可能性を低減するため、1枚で構成してもよい。天板補助板7、天板補助板8は1枚で構成してもよいし、天板9で代用することで、ない構成としてもよい。箱体の側板は、外装材2、外装材3、仕切り板5により構成される。   The foamable heat insulating material 16 is composed of an outer wall of the hot water storage tank 1 and an inner wall of a box composed of an exterior material 2, an exterior material 3, a partition plate 5, a top plate auxiliary plate 7, a top plate auxiliary plate 8, and a bottom plate 10. Foamed and filled in the configured space. The exterior material 2 and the exterior material 3 may be composed of a single sheet in order to reduce the possibility of water entering the foamable heat insulating material 16. The top plate auxiliary plate 7 and the top plate auxiliary plate 8 may be composed of a single plate, or the top plate 9 may be replaced by a substitute configuration. The side plate of the box is composed of an exterior material 2, an exterior material 3, and a partition plate 5.

タンクユニット30として必要な、各弁の動作を制御する制御装置、漏電遮断機、電線
、端子台などの電装品、湯水の通る構成品を繋ぐ配管類、配管内の湯水温度やタンクユニット30内外の空気温度を検出する温度センサー、配管内の湯水流量を検知する流量センサー、浴槽内の湯水の有無を検知するフローセンサー、浴槽内の水位を検知する水位センサー、湯と水を混合する混合弁、湯水の流れ方向を切り換える三方弁、湯水の流量を調整する流量調整弁、浴槽への注湯をや逆流防止を行う電磁弁、給水圧力をシステム許容圧力に減圧する減圧弁、タンク1内の圧力が設定圧力以上になった場合に開放し、圧力を逃がす逃し弁、浴槽水やタンク1内の湯水を加熱するために循環させるポンプ、浴槽水や給水を過熱するための熱交換器、タンク1内の湯水を排水する排水弁などの機能部品は、外装材4、仕切り板5、継手取付板6、天板9で構成される空間で、接続、構成されている。これら機能部品はメンテナンスが必要な部品であり、発泡性断熱材16に埋設されない場所に設置する必要がある。
Necessary control device for the tank unit 30, control device for controlling the operation of each valve, electric leakage circuit breaker, electric wire, terminal block and other electrical components, piping for connecting components through which hot water passes, hot and cold water temperature in the piping and inside / outside of the tank unit 30 Temperature sensor to detect the air temperature of the water, flow sensor to detect the flow rate of hot water in the pipe, flow sensor to detect the presence or absence of hot water in the bathtub, water level sensor to detect the water level in the bathtub, mixing valve to mix hot water and water , A three-way valve that switches the flow direction of hot water, a flow rate adjustment valve that adjusts the flow rate of hot water, a solenoid valve that prevents pouring water into the bathtub and preventing backflow, a pressure reducing valve that reduces the feed water pressure to the system allowable pressure, A relief valve that opens when the pressure exceeds the set pressure and releases the pressure, a pump that circulates to heat the bath water and hot water in the tank 1, a heat exchanger that overheats the bath water and water supply, Functional parts such as drain valve for draining hot water in the click 1, exterior materials 4, the partition plate 5, fitting the mounting plate 6, in space formed by the top plate 9, connected and configured. These functional parts are parts that require maintenance, and need to be installed in a place that is not embedded in the foamable heat insulating material 16.

このように、タンクユニット30の中を仕切り板5により、機械室13と断熱室16aに分離し、機能部品を機械室13内に集約することで、断熱室16a内に発泡性断熱材16以外のものが残るのを貯湯タンク1に直結の配管および貯湯タンク1の側面に取り付けられたサーミスタのみ(貯湯タンク1に直結の配管に付けたサーミスタを含む)にすることで、発泡性断熱材16が充填されやすく、高い断熱性能を有するタンクユニットを得ることができる。   In this way, the inside of the tank unit 30 is separated into the machine room 13 and the heat insulation room 16a by the partition plate 5, and the functional parts are concentrated in the machine room 13 so that the heat insulation room 16a has a portion other than the foam heat insulation material 16a. By leaving only the thermistor directly attached to the hot water storage tank 1 and the thermistor attached to the side surface of the hot water storage tank 1 (including the thermistor attached to the direct connection piping to the hot water storage tank 1), the foaming heat insulating material 16 remains. Can be filled, and a tank unit having high heat insulation performance can be obtained.

ここで、貯湯タンク1に直結の配管は、貯湯タンク1に溶接する構造とすれば、従来のOリングやシールテープなどの部材によるシール構造でなくなるため、メンテナンスによる解体・交換作業が不要になる。貯湯タンク1の周囲に硬質発泡ウレタンなどの発泡性断熱材16が充填する場合、断熱箱体20の状態で充填する。   Here, if the pipe directly connected to the hot water storage tank 1 is welded to the hot water storage tank 1, the conventional seal structure using an O-ring, a seal tape, or the like is no longer required, so that dismantling and replacement work by maintenance becomes unnecessary. . When the hot water storage tank 1 is filled with a foamable heat insulating material 16 such as hard foamed urethane, the hot water storage tank 1 is filled in the state of the heat insulating box 20.

図4は、断熱箱体図である。断熱箱体20は、貯湯タンク1、外装材2、外装材3、仕切り板5、天板補助板7、天板補助板8、底板10で構成される。発泡性断熱材16の充填時には発泡圧力により断熱箱体20が膨張変形することを防ぐための押さえ型が必要であるが、このように断熱箱体20の形状を簡素化することで、押さえ型の形状、構造が簡素化でき、設備費用の削減にも貢献できる。   FIG. 4 is a heat insulation box diagram. The heat insulation box 20 includes a hot water storage tank 1, an exterior material 2, an exterior material 3, a partition plate 5, a top plate auxiliary plate 7, a top plate auxiliary plate 8, and a bottom plate 10. When the foamable heat insulating material 16 is filled, a pressing mold for preventing the heat insulating box 20 from expanding and deforming due to the foaming pressure is necessary. By simplifying the shape of the heat insulating box 20 in this way, the pressing mold The shape and structure can be simplified, and the equipment cost can be reduced.

また、断熱箱体20を構成する板の一部または全部をタンクユニットの外装材とすることでコスト低減を図ることが可能である。断熱箱体20の形状は、略6角形に限るものではなく、略5以上の角形、略円形、略楕円形となるよう構成されてもよい。   Further, it is possible to reduce the cost by using a part or all of the plates constituting the heat insulation box 20 as an exterior material of the tank unit. The shape of the heat insulation box 20 is not limited to a substantially hexagonal shape, and may be configured to be a substantially five or more rectangular shape, a substantially circular shape, or a substantially elliptical shape.

図5は、断熱箱体20の横断面図である。断熱箱体20は貯湯タンク1の全周囲を包む形状が望ましい。また、貯湯タンク1の外壁と断熱箱体20の内壁で構成される発泡性断熱材16の厚さが均一になるように構成することが望ましい。また、貯湯タンク1の形状に近い形状とすることで発泡性断熱材16の充填時に断熱室16a内を流れやすくなり、密度バランスの均一化などが期待できる。   FIG. 5 is a cross-sectional view of the heat insulating box 20. The heat insulation box 20 preferably has a shape surrounding the entire circumference of the hot water storage tank 1. Further, it is desirable that the foamable heat insulating material 16 formed by the outer wall of the hot water storage tank 1 and the inner wall of the heat insulating box 20 has a uniform thickness. Moreover, by making it the shape close | similar to the shape of the hot water storage tank 1, it becomes easy to flow the inside of the heat insulation chamber 16a at the time of filling of the foaming heat insulating material 16, and the uniformity of a density balance etc. can be anticipated.

貯湯タンク1は内脚11により底板10に固定される。発泡性断熱材16の充填時に発泡材の中に埋設される形となるため、貯湯タンク1の地震などの揺れに対する耐力が向上し、内脚11の挫屈や、溶接はがれなどが起き難くなり、耐震性の向上が見込める。また、発泡性断熱材16は発泡後に接触する外装板2、外装板3などと密着状態になり一体化するため、タンクユニット30の強度向上が見込める。発泡性断熱材16は、外装箱体の一部に設けられる穴である注入口14より注入され、断熱室16a内の空気は、ガス抜き口15より排出されることで充填される。ガス抜き口15の大きさは注入口14より小さいものでよい。発泡性断熱材16は水分を含むと、断熱性能および強度の低下が進行する特性がありるため、発泡性断熱材と水分とが接触しないようにする必要がある。   The hot water storage tank 1 is fixed to the bottom plate 10 by inner legs 11. Since the foamed heat insulating material 16 is embedded in the foamed material, the heat resistance of the hot water storage tank 1 against shaking such as an earthquake is improved, and the inner leg 11 is less likely to be bent or welded. Improvement of earthquake resistance can be expected. In addition, since the foamable heat insulating material 16 is brought into close contact with and integrated with the exterior plate 2 and the exterior plate 3 that come into contact after foaming, the strength of the tank unit 30 can be improved. The foamable heat insulating material 16 is injected from an injection port 14 which is a hole provided in a part of the exterior box body, and the air in the heat insulating chamber 16 a is filled by being discharged from the gas vent port 15. The size of the gas vent 15 may be smaller than the inlet 14. When the foamable heat insulating material 16 contains moisture, the heat insulating performance and the strength decrease, so that the foamable heat insulating material and the water do not come into contact with each other.

外装材2、外装材3、天板9など、外気に直接触れる外装面に注入口14、ガス抜き口15を設けると、発泡性断熱材16に水分が進入する恐れがあり得るため、複雑な防水構造が必要であるが、外形寸法が変わるなどの問題があり得策ではない。   If the inlet 14 and the gas vent 15 are provided on the exterior surface that directly touches the outside air, such as the exterior material 2, the exterior material 3, and the top plate 9, there is a risk that moisture may enter the foaming heat insulating material 16. Although a waterproof structure is necessary, there are problems such as changes in external dimensions, which is not possible.

図6は、断熱箱体20の断熱性能を更に高めるための、真空断熱材適用例である。図6(a)は貯湯タンク1の外壁の一部または全周に真空断熱材20を取り付けたものである。高温の貯湯タンク1に直接真空断熱材20を取り付け可能なため、真空断熱材20の効果をより高く発揮できる。また、発泡性断熱材16の発泡圧力により、貯湯タンク1の外壁および発泡性断熱材16に密着、固定されるため、空間ができにくく、断熱性能の低下を抑制できる。   FIG. 6 is an application example of a vacuum heat insulating material for further improving the heat insulating performance of the heat insulating box 20. FIG. 6A shows a case where a vacuum heat insulating material 20 is attached to a part or the entire circumference of the outer wall of the hot water storage tank 1. Since the vacuum heat insulating material 20 can be directly attached to the high temperature hot water storage tank 1, the effect of the vacuum heat insulating material 20 can be exhibited more highly. Moreover, since the foaming pressure of the foamable heat insulating material 16 is closely attached and fixed to the outer wall of the hot water storage tank 1 and the foamable heat insulating material 16, it is difficult to create a space, and a decrease in heat insulating performance can be suppressed.

図6(b)は断熱箱体20を構成する外装材の一部または全周に真空断熱材20を取り貼り付けたものである。外装材2、3、5は平面の組み合わせであり、板状の真空断熱材20でも取り付けが比較的容易である。また、発泡性断熱材16の発泡圧力により、外装材2、3、5の内壁および発泡性断熱材16に密着、固定されるため、空間ができにくく、断熱性能の低下を抑制できる。   FIG. 6B shows the vacuum heat insulating material 20 attached to a part or the entire periphery of the exterior material constituting the heat insulating box 20. The exterior materials 2, 3, 5 are a combination of planes, and even the plate-like vacuum heat insulating material 20 is relatively easy to attach. Further, since the foaming pressure of the foamable heat insulating material 16 is closely attached to and fixed to the inner walls of the exterior materials 2, 3, and 5 and the foamable heat insulating material 16, it is difficult to create a space, and a decrease in heat insulating performance can be suppressed.

図7、は断熱箱体20の上面(天板補助板8)からの発泡性断熱材16の注入例である。図7(a)は発泡性断熱材16の注入時、図7(b)は発泡性断熱材16の注入後の状態である。注入口14には一辺が接着された断熱材漏れ防止シール17が内側に貼り付けられている。ガス抜き口15には図7に示すような断熱材漏れ防止シール17は不要である。   FIG. 7 shows an example of injecting the foamable heat insulating material 16 from the upper surface (top plate auxiliary plate 8) of the heat insulating box body 20. FIG. 7A shows the state after the foaming heat insulating material 16 is injected, and FIG. 7B shows the state after the foaming heat insulating material 16 is injected. A heat insulating material leakage prevention seal 17 with one side bonded is affixed to the inlet 14 inside. The gas vent 15 does not need a heat insulating material leakage prevention seal 17 as shown in FIG.

発泡性断熱材16の注入時には、断熱材注入ノズル19が断熱材漏れ防止シール17を押しのけて断熱室16aに挿入され、断熱材注入ノズル19より発泡性断熱材16が注入、充填される。規定量の発泡性断熱材16が注入されると、断熱材注入ノズル19が抜かれるが、同時に発泡性断熱材16の発泡圧力により断熱材漏れ防止シール17が天板補助板8に押し付けられ、注入口14が閉塞される。発泡性断熱材16の発泡が進むと、発泡性断熱材16により断熱材漏れ防止シール17が断熱箱体20の内壁に押し付けられて、発泡性断熱材16の漏れを防止する。天板補助板8に注入口14、ガス抜き口15を設けると、組み立て時に天板9が上部に被さる構成となるため水進入の可能性を減らすことができる。   At the time of injecting the foamable heat insulating material 16, the heat insulating material injection nozzle 19 is inserted into the heat insulating chamber 16 a by pushing the heat insulating material leakage prevention seal 17, and the foamable heat insulating material 16 is injected and filled from the heat insulating material injection nozzle 19. When the specified amount of foamable heat insulating material 16 is injected, the heat insulating material injection nozzle 19 is pulled out. At the same time, the heat insulating material leakage prevention seal 17 is pressed against the top plate auxiliary plate 8 by the foaming pressure of the foamable heat insulating material 16. The inlet 14 is closed. When foaming of the foamable heat insulating material 16 proceeds, the heat insulating material leakage prevention seal 17 is pressed against the inner wall of the heat insulating box 20 by the foamable heat insulating material 16 to prevent the foamable heat insulating material 16 from leaking. If the inlet 14 and the gas vent 15 are provided in the top plate auxiliary plate 8, the top plate 9 covers the top at the time of assembly, so that the possibility of water entry can be reduced.

しかしながら、発泡性断熱材16は注入口14から離れた下部ほど密度が高くなり、断熱性能が高くなる傾向がある。タンクユニット30では使用とともに、貯湯タンク1の上部に湯が残るため、断熱性能は貯湯タンク1の上部ほど高いほうが望ましい。   However, the foamable heat insulating material 16 tends to have a higher density and a higher heat insulating performance at a lower portion away from the inlet 14. As the tank unit 30 is used and hot water remains in the upper part of the hot water storage tank 1, it is desirable that the heat insulation performance is higher in the upper part of the hot water storage tank 1.

一般的に注入口に近い側は断熱性能が低くなる傾向があるため、天板補助板8に注入口14、ガス抜き口15を設ける注入方法は、貯湯タンク1の上部ほど断熱性能が低くなる傾向になりやすい。貯湯タンク1の上部ほど断熱性能が高くなるようにするためには、発泡性断熱材16の注入時には断熱箱体20を上下逆にし、底板10に注入口14、ガス抜き口15を設ける方法がある。   In general, the heat insulation performance tends to be low on the side close to the injection port. Therefore, in the injection method in which the injection port 14 and the gas vent port 15 are provided in the top plate auxiliary plate 8, the heat insulation performance becomes lower toward the upper part of the hot water tank 1. Prone to tend. In order to increase the heat insulation performance toward the upper part of the hot water storage tank 1, a method in which the heat insulating box 20 is turned upside down when the foamable heat insulating material 16 is injected, and the inlet 14 and the gas vent 15 are provided in the bottom plate 10. is there.

タンクユニット30としての据付状態では(上下正設置状態)、断熱箱体20の下面(底板10)は風雨に直接当たらないが、断熱箱体20の側背面となる外装材2、外装材3は直接風雨にさらされるため、外装材2、外装材3を伝って断熱箱体20の下面(底板10)に水が流れ、注入口14、ガス抜き口15より発泡性断熱材16に水が進入する恐れがある。   In the installed state as the tank unit 30 (upper and lower regular installation state), the lower surface (bottom plate 10) of the heat insulation box 20 does not directly hit the wind and rain, but the exterior material 2 and the exterior material 3 that are the back side of the heat insulation box 20 are Since it is directly exposed to wind and rain, water flows through the exterior material 2 and the exterior material 3 to the lower surface (bottom plate 10) of the heat insulation box 20, and water enters the foamable insulation 16 from the inlet 14 and the gas vent 15. There is a fear.

そこで、断熱箱体20の下面(底板10)に注入口14、ガス抜き口15を設ける場合、注入口14、ガス抜き口15へ水が流入しない構造とする必要がある。   Therefore, when the inlet 14 and the gas vent 15 are provided on the lower surface (bottom plate 10) of the heat insulating box 20, it is necessary to have a structure in which water does not flow into the inlet 14 and the gas vent 15.

図8は外装材2、外装材3に、図9は断熱箱体20の下面(底板10)に、それぞれ注入口14、ガス抜き口15への水分進入の可能性を極力低減することが可能となる構造の一例である。外装材2、外装材3を断熱箱体20の下面(底板10)の底面(設置面と最も近い部分)より設置面側に出すことにより、外装材2、外装材3にかかった水が断熱箱体20の下面(底板10)に回り込む可能性が低減される。また、注入口14とガス抜き口15は、断熱箱体20の下面(底板10)の底面(設置面と最も近い部分)段差を設けた位置に設け、更に注入口14およびガス抜き口15に水進入防止シール18を貼り付けることにより、各口の外気への接触箇所がなくなるため、発泡性断熱材16が水分に触れる可能性を低減でき、発泡性断熱材16の断熱性能および強度の低下が進行することを低減することができる。   FIG. 8 shows the exterior material 2 and the exterior material 3, and FIG. 9 shows that the possibility of moisture entering the inlet 14 and the gas vent 15 on the lower surface (bottom plate 10) of the heat insulating box 20 can be reduced as much as possible. It is an example of the structure which becomes. The exterior material 2 and the exterior material 3 are exposed to the installation surface side from the bottom surface (portion closest to the installation surface) of the lower surface (bottom plate 10) of the heat insulation box 20, so that water applied to the exterior material 2 and the exterior material 3 is insulated. The possibility of going around the lower surface (bottom plate 10) of the box 20 is reduced. Further, the inlet 14 and the gas vent 15 are provided at a position where a step is provided on the bottom surface (the portion closest to the installation surface) of the lower surface (bottom plate 10) of the heat insulating box 20, and further to the inlet 14 and the gas vent 15. By sticking the water ingress prevention seal 18, there is no place where each mouth comes into contact with the outside air, so that the possibility that the foamable heat insulating material 16 may come into contact with moisture can be reduced, and the heat insulating performance and strength of the foamable heat insulating material 16 are reduced. Can be reduced.

更に、単純な構成として、仕切り板5に注入口14とガス抜き口15を設ける方法がある。   Further, as a simple configuration, there is a method of providing the inlet 14 and the gas vent 15 in the partition plate 5.

図10は、断熱箱体20の一部を構成する仕切り板5に注入口14、ガス抜き口15を設けた場合の構成例である。発泡性断熱材16の注入、充填は、注入口14、ガス抜き口15を設けた仕切り板5が上になるように断熱箱体20を横置きにして行なう。   FIG. 10 is a configuration example in the case where the inlet 14 and the gas vent 15 are provided in the partition plate 5 constituting a part of the heat insulating box 20. The foaming heat insulating material 16 is injected and filled by placing the heat insulating box 20 horizontally so that the partition plate 5 provided with the inlet 14 and the gas vent 15 is on top.

このとき図10(b)のように、断熱箱体20と貯湯タンク1の配置は、発泡断熱材16の厚さが、A≒B≒C<Dとなるようにするとよい。注入口14が近い側(仕切り板5側)の断熱材厚さを厚くすることで、密度低下による断熱性能の低下を補うことが可能である。   At this time, as shown in FIG. 10B, the heat insulating box 20 and the hot water storage tank 1 are preferably arranged so that the thickness of the foam heat insulating material 16 satisfies A≈B≈C <D. By increasing the thickness of the heat insulating material on the side close to the inlet 14 (partition plate 5 side), it is possible to compensate for the decrease in heat insulating performance due to the decrease in density.

密度バランスが崩れても、断熱性能が十分確保できる場合はこのような構成は必要ない。タンクユニット30の中に設けられている仕切り板5は直接に風雨にさらされることがないため、注入口14は図7(b)のような最も簡素な構成でよく、安価に構成することが可能である。ガス抜き口15も同様である。   Even if the density balance is lost, such a configuration is not necessary if sufficient heat insulation performance can be secured. Since the partition plate 5 provided in the tank unit 30 is not directly exposed to wind and rain, the inlet 14 may have the simplest configuration as shown in FIG. Is possible. The same applies to the gas vent 15.

ここで、箱体の断面は図10(b)の例では略8角形だが、略5以上の角形、略円形又は略楕円形でもよい。   Here, the cross section of the box is substantially octagonal in the example of FIG. 10B, but may be approximately five or more squares, substantially circular or substantially elliptical.

注入口14、ガス抜き口15を設けた仕切り板5が上になるように断熱箱体20を横置きにして発泡性断熱材16の注入、充填を行なう場合の課程例を説明する。断熱箱体20を横置きにした状態で、押さえ型で断熱箱体20の前面を押さえる。押さえ形は発泡性断熱材16の注入、充填時に発泡圧により、断熱箱体20が膨張、変形しない強度、構成を持つもので慣れればならない。注入口14より発泡性断熱材16を注入する。複数個設けられた注入口14から注入してもよく、温度、圧力、量などの諸条件が注入口によって違うものでもよい。断熱箱体20の内部構成により発泡性断熱材16の注入条件を変えてもよい。断熱性能の均一化や、場所により断熱性能の差異を付けることも可能である。更に外装板4を装着することにより、外装板4と注入口14との間に発泡断熱材16の無い空間を形成する。発泡性断熱材16の充填後は、図11のように、断熱箱体20に、外脚12、図示しない制御装置、電装品、配管類、温度センサー、流量センサー、フローセンサー、水位センサー、混合弁、三方弁、流量調整弁、電磁弁、減圧弁、逃し弁、ポンプ、熱交換器、排水弁などの機能部品、継手取付板6、天板9、外装材4などを取り付け、タンクユニット30を構成する。本実施例によれば、注入口に雨水が直接かかるのを防止することができる。   A process example in the case where the heat insulating box 20 is placed horizontally so that the partition plate 5 provided with the inlet port 14 and the gas vent port 15 is placed upward and the foaming heat insulating material 16 is injected and filled will be described. In a state where the heat insulating box 20 is placed horizontally, the front surface of the heat insulating box 20 is pressed with a pressing mold. The hold-down shape must be used because it has strength and configuration that prevents the heat insulation box 20 from expanding and deforming due to the foaming pressure when the foamable heat insulating material 16 is injected and filled. A foamable heat insulating material 16 is injected from the inlet 14. Injection may be performed from a plurality of injection ports 14, and various conditions such as temperature, pressure, and quantity may differ depending on the injection port. The injection conditions of the foamable heat insulating material 16 may be changed depending on the internal configuration of the heat insulating box 20. It is also possible to make the heat insulation performance uniform and to make the heat insulation performance different depending on the location. Further, by mounting the exterior plate 4, a space without the foam heat insulating material 16 is formed between the exterior plate 4 and the inlet 14. After filling the foamable heat insulating material 16, as shown in FIG. 11, the outer leg 12, a control device (not shown), electrical equipment, piping, temperature sensor, flow sensor, flow sensor, water level sensor, mixing are added to the heat insulating box body 20. A functional unit such as a valve, a three-way valve, a flow regulating valve, a solenoid valve, a pressure reducing valve, a relief valve, a pump, a heat exchanger, a drain valve, a fitting mounting plate 6, a top plate 9, an exterior material 4, and the like are mounted. Configure. According to this embodiment, it is possible to prevent rainwater from directly entering the inlet.

更には、押さえ型で断熱箱体20の前面を押さえる前に、真空断熱材をタンク1に装着しても良い。真空断熱材は箱体の方に装着しても良い。   Furthermore, a vacuum heat insulating material may be attached to the tank 1 before the front surface of the heat insulating box 20 is pressed with a pressing mold. The vacuum heat insulating material may be attached to the box.

箱体の長手方向が水平になるように、かつ、注入口14を上に向けて、箱体を押さえ型で押さえ、発泡性断熱材16を注入した後に、その箱体の長手方向が垂直になるように箱体を設置しても良い。   After the box body is pressed with a pressing mold and the foaming heat insulating material 16 is injected so that the longitudinal direction of the box body is horizontal and the inlet 14 is directed upward, the longitudinal direction of the box body is vertical. You may install a box so that it may become.

箱体の底板に設けられた注入口14が上に向くように箱体の上下を逆にして、箱体を押さえ型で押さえ、発泡性断熱材16を注入した後に、箱体の上下を正に設置してもよい。
The box body is turned upside down so that the inlet 14 provided on the bottom plate of the box body is facing upward, the box body is pressed with a holding mold, and the foamable heat insulating material 16 is injected. You may install in.

1 貯湯タンク
2 外装板
3 外装板
5 仕切り板
7,8 天板補助板
9 天板
10 底板
13 機械室
14 注入口
15 ガス抜き口
16 発泡性断熱材
16a 断熱室
20 断熱箱体
30 タンクユニット
DESCRIPTION OF SYMBOLS 1 Hot water storage tank 2 Exterior plate 3 Exterior plate 5 Partition plate 7,8 Top plate auxiliary plate 9 Top plate 10 Bottom plate 13 Machine room 14 Inlet 15 Degassing port 16 Foamable heat insulating material 16a Thermal insulation chamber 20 Thermal insulation box 30 Tank unit

Claims (1)

水を内部に貯蔵するためのタンクと、
前記タンクを収納する箱体と、
前記箱体と前記タンクとの間に設けられた発泡断熱材と、
前記箱体に設けられ、前記発泡断熱材注入用の開口である注入口と、
前記箱体の内面に設けられ前記注入口を閉塞する断熱材漏れ防止シールと、
前記注入口に面する外装材とを備え、
前記注入口と前記外装材との間に前記発泡断熱材の無い空間が形成されたタンクユニット。
A tank for storing water inside,
A box housing the tank;
A foam heat insulating material provided between the box and the tank;
An inlet that is provided in the box and is an opening for injecting the foam insulation;
A heat insulating material leakage prevention seal provided on the inner surface of the box to close the injection port;
An exterior material facing the inlet,
A tank unit in which a space without the foam heat insulating material is formed between the inlet and the exterior material .
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JP6556565B2 (en) * 2015-09-01 2019-08-07 日立グローバルライフソリューションズ株式会社 Hot water storage tank unit
WO2019176097A1 (en) * 2018-03-16 2019-09-19 三菱電機株式会社 Storage-type water heater
WO2020217270A1 (en) * 2019-04-22 2020-10-29 三菱電機株式会社 Polyurethane foam insulation material and storage water heater
CN110411732A (en) * 2019-08-23 2019-11-05 合肥元正质量技术服务有限公司 A kind of floor drain combination property tester

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54102641A (en) * 1978-01-28 1979-08-13 Ito Akira Electric water heater with synthetic resin cover
JPS58160758A (en) * 1982-03-18 1983-09-24 Matsushita Electric Ind Co Ltd Method of heat insulation of hot water storing tank
JPH04262192A (en) * 1990-12-28 1992-09-17 Sharp Corp Heat insulation box structure
JPH1054496A (en) * 1996-08-09 1998-02-24 Matsushita Refrig Co Ltd Heat insulating case body
JP2006275434A (en) * 2005-03-29 2006-10-12 Sanyo Electric Co Ltd Refrigerator
JP2007315616A (en) * 2006-05-23 2007-12-06 Sanyo Electric Co Ltd Water heater
JP2013088036A (en) * 2011-10-19 2013-05-13 Hitachi Appliances Inc Thermal insulation box, refrigerator, and storage type water heater

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