JP2004043011A - Thermal insulating water tank - Google Patents

Thermal insulating water tank Download PDF

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Publication number
JP2004043011A
JP2004043011A JP2002236692A JP2002236692A JP2004043011A JP 2004043011 A JP2004043011 A JP 2004043011A JP 2002236692 A JP2002236692 A JP 2002236692A JP 2002236692 A JP2002236692 A JP 2002236692A JP 2004043011 A JP2004043011 A JP 2004043011A
Authority
JP
Japan
Prior art keywords
frp
frp panel
insulating material
heat insulating
resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002236692A
Other languages
Japanese (ja)
Inventor
Akira Takasuka
高須賀 昭
Tsuneo Takano
高野 恒夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daishin Inc
Original Assignee
Daishin Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daishin Inc filed Critical Daishin Inc
Priority to JP2002236692A priority Critical patent/JP2004043011A/en
Publication of JP2004043011A publication Critical patent/JP2004043011A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To use an FRP panel formed of an inexpensive resin material for an ambient temperature use such as an orthophthalic resin by preventing heat of a tank temperature from loading on the FRP panel. <P>SOLUTION: The tank main body 1 is formed of the FRP panel 1a, and a thermal insulation layer 2 and a water barrier layer 3 are laminated and bonded on the inner side of the tank main body 1 with the thermal insulation layer 2 located as an intermediate layer. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、現場組み立てが容易であるFRP(ガラス繊維強化プラスチック)パネルを用いた、保温貯水槽の改良に関する。
【0002】
【従来の技術】
飲料用水槽や貯湯槽等は、軽量で搬出入作業に便利であって耐久性の面でも優れており、かつ大容量槽の設置が可能である、FRPパネルを用いた現場組み立てによるものが主流を占めるようになっている。このFRPパネル製の貯槽は、FRPパネルにより組み立てられた槽の外面側に断熱材層と化粧板層が設けられているいわゆるサンドイッチ構造であって、湯水と接するFRPパネルは、湯水の槽内温度に対応して耐熱性を発揮できるように、該FRPパネル自体の素材樹脂を変える必要がある。
【0003】
例えば、要求される湯水の槽内温度が常温ならばオルソフタル酸系樹脂を、80℃未満ならばイソフタル酸系樹脂を、また80〜100℃ならばビスフェノール系樹脂というように、FRPパネルを素材樹脂別に使い分けをしなければならない。これは耐蝕性についても同様である。そして、常温水以外の他の槽は、温水・冷水の何れの槽の場合でも通常は保温・保冷性を有していることが必要である。
【0004】
【発明が解決しようとする課題】
これらの条件を満たす保温貯水槽の需要に応ずるためには素材樹脂別による数種類のFRPパネルを常時在庫管理しておく必要があって、生産性の悪いことは勿論、製品のコストに大きく影響することは避けられない。因みに、FRPパネルの素材の樹脂価格は、イソフタル酸系樹脂はオルソフタル酸系樹脂の1.3倍、ビスフェノール系樹脂はオルソフタル酸系樹脂の1.5倍である。加えて、断熱材の厚さは自由に選択できず、断熱材の厚さによってはパネルの形状を変えなければならないという問題もある。
【0005】
本発明はこのような問題を解決したものであって、その目的は、FRPパネルを外側層としたサンドイッチ構造の貯水槽を構成することでFRPパネル側に熱負荷がかからず、そのために安価である常温用の素材樹脂(例えば、オルソフタル酸系樹脂)で形成されたFRPパネルを用いることができ、かつパネルを組み立てるときにパネル同士の継ぎ目をシールするパッキンが不要となることで、大幅なコストダウン化が達成できるように改良した保温貯水槽を提供することにある。
【0006】
【課題を解決するための手段】
上記目的を達成するために、本発明の特徴とする保温貯水槽は、FRPパネルにより組み立てられた槽本体を形成し、その槽本体の内面側に断熱材層と遮水層が断熱材層を中間にして積層接着されている構成である。この構成によればFRPパネル側は断熱材層により貯水槽内と熱的遮断されているので、FRPパネルの素材樹脂に安価なオルソフタル酸系樹脂が使用されている飲料用水槽(常温用)を高温水乃至は低温水を収容するための保温貯水槽として使用することが可能であって、廉価な夜間電力を利用してのエネルギー資源を有効活用するための各般の蓄熱槽としても安直に利用できる。
【0007】
【発明の実施の形態】
以下に、本発明の実施の形態を図面を参照しながら説明する。1はFRPパネル1aを用いて直方体状に組み立てられた槽本体であって、その内面側に断熱材層2と遮水層3が断熱材層2を中間にして積層接着され、本発明に係る保温貯水槽が構成される。この構成において、断熱材層2の形成には通常の硬質ウレタンフォームやスタイロフォーム等が、また遮水層3の形成には通常の耐熱・防水シート〔例えば、メタルセーフシートやマツオマルチシート(商品名)等〕がそれぞれ用いられる。
【0008】
FRPパネル1aは通常四角形であって、その4辺にパネル同士の接続用の鍔1bが突設されているが、断熱材層2は鍔部1bには設けられていない。FRPパネル1aの素材樹脂としては前述したようにオルソフタル酸系樹脂を用いるのがコストの面で好ましく、また、天井部は図示省略したが、本貯水槽と同様なサンドイッチ構造であって、本貯水槽が屋外用であれば、天井部のみFRPパネル1a同士の継ぎ目にパッキンを施して、断熱材層2を雨水から保護する。なお、本発明を実施する場合の1例であるが、FRPパネル1aの厚みは10mm、断熱材層2の厚みは50〜60mm、遮水層3の厚みは0.7mmである。
【0009】
【発明の効果】
本発明は上記の如くであって、FRPパネルは保温貯水槽の外側構造材として機能し該貯水槽内とは熱的遮断されているため、上記パネルの素材樹脂は湯水の槽内温度に左右されないで常温用である安価な樹脂を用いることができる。また、断熱材層は遮水層により保護されるため、FRPパネルの組み立て時におけるパッキンも基本的には不要となって、上記素材樹脂の点と相俟ってコストダウンを図る上に有効である。加えて、暖房や冷房用の安直な蓄熱槽としても利用できるので、夜間エネルギー資源の有効活用の面でも貢献できる効果がある。
【図面の簡単な説明】
【図1】
本発明の実施の形態を示す正断面図である。
【符号の説明】
1は槽本体
1aはFRPパネル
2は断熱材層
3は遮水層
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an improvement in a thermal storage tank using an FRP (glass fiber reinforced plastic) panel that can be easily assembled on site.
[0002]
[Prior art]
Drinking water tanks and hot water tanks are lightweight, convenient for loading and unloading work, have excellent durability, and can be installed in large capacity tanks, and are mainly assembled on site using FRP panels. Has become occupied. This storage tank made of FRP panels has a so-called sandwich structure in which a heat insulating material layer and a decorative plate layer are provided on the outer surface side of the tank assembled by the FRP panels. It is necessary to change the material resin of the FRP panel itself so that the heat resistance can be exhibited correspondingly.
[0003]
For example, if the required hot water temperature in the bath is room temperature, orthophthalic acid resin is used, if it is less than 80 ° C, isophthalic acid resin is used, and if 80-100 ° C, bisphenol resin is used, the FRP panel is made of a material resin. You have to use them separately. This is the same for the corrosion resistance. In addition, the other tanks other than the normal-temperature water usually need to have a heat-retaining / cooling property in both hot and cold water tanks.
[0004]
[Problems to be solved by the invention]
In order to respond to the demand for a thermal storage tank that satisfies these conditions, it is necessary to keep inventory of several types of FRP panels depending on the material and resin at all times, which not only lowers productivity but also greatly affects product costs. That is inevitable. By the way, the resin price of the material of the FRP panel is 1.3 times for the isophthalic acid-based resin and 1.5 times for the ortho-phthalic acid resin for the bisphenol-based resin. In addition, there is a problem that the thickness of the heat insulating material cannot be freely selected, and the shape of the panel must be changed depending on the thickness of the heat insulating material.
[0005]
The present invention has solved such a problem, and an object of the present invention is to provide a sandwich-type water storage tank having an FRP panel as an outer layer so that a heat load is not applied to the FRP panel side, and therefore, the cost is reduced. It is possible to use an FRP panel formed of a material resin for normal temperature (for example, orthophthalic acid-based resin) and eliminate the need for packing for sealing a joint between panels when assembling the panels. It is an object of the present invention to provide an insulated water storage tank improved so that cost reduction can be achieved.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a heat retaining water tank characterized by the present invention forms a tank main body assembled by FRP panels, and a heat insulating material layer and a water impermeable layer form a heat insulating material layer on the inner surface side of the tank main body. This is a configuration in which the layers are bonded in the middle. According to this configuration, since the FRP panel side is thermally insulated from the inside of the water storage tank by the heat insulating material layer, a drinking water tank (for normal temperature) in which an inexpensive orthophthalic acid resin is used as a material resin of the FRP panel is used. It can be used as a thermal storage tank for storing high-temperature water or low-temperature water, and can also be used as a general heat storage tank for effective use of energy resources using inexpensive nighttime electricity it can.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. Numeral 1 is a tank body assembled in a rectangular parallelepiped shape using the FRP panel 1a, and a heat insulating material layer 2 and a water impermeable layer 3 are laminated and bonded to the inner surface of the tank body with the heat insulating material layer 2 in between. A warm water storage tank is configured. In this configuration, a normal hard urethane foam or a styrofoam is used for forming the heat insulating material layer 2 and a normal heat-resistant / waterproof sheet [for example, a metal safe sheet or Matsuo Multisheet (trade name) is used for forming the water-impermeable layer 3. ) Etc. are used respectively.
[0008]
The FRP panel 1a is generally rectangular, and flanges 1b for connecting the panels are projected from four sides thereof, but the heat insulating material layer 2 is not provided on the flange 1b. As described above, it is preferable to use an orthophthalic acid resin as a material resin of the FRP panel 1a from the viewpoint of cost. Also, although a ceiling portion is omitted from the drawing, it has a sandwich structure similar to that of the present water storage tank. If the tank is for outdoor use, packing is applied to the joint between the FRP panels 1a only on the ceiling to protect the heat insulating material layer 2 from rainwater. In addition, although it is an example when implementing this invention, the thickness of the FRP panel 1a is 10 mm, the thickness of the heat insulating material layer 2 is 50-60 mm, and the thickness of the water shielding layer 3 is 0.7 mm.
[0009]
【The invention's effect】
Since the present invention is as described above, the FRP panel functions as an outer structural material of the heat retaining water tank and is thermally isolated from the inside of the water storage tank. Instead, an inexpensive resin for normal temperature can be used. In addition, since the heat insulating material layer is protected by the water impermeable layer, packing is not basically required at the time of assembling the FRP panel, which is effective in reducing costs in combination with the above-mentioned resin material. is there. In addition, since it can be used as a simple heat storage tank for heating and cooling, it also has the effect of contributing to the effective use of nighttime energy resources.
[Brief description of the drawings]
FIG.
It is a front sectional view showing an embodiment of the invention.
[Explanation of symbols]
1 is a tank body 1a is an FRP panel 2 is a heat insulating material layer 3 is a waterproof layer

Claims (1)

FRPパネルにより組み立てられた槽本体を形成し、その槽本体の内面側に断熱材層と遮水層が断熱材層を中間にして積層接着されていることを特徴とする保温貯水槽。A thermal storage tank comprising a tank body assembled by FRP panels, wherein a heat insulating material layer and a water impermeable layer are laminated and bonded to the inner surface side of the tank body with the heat insulating material layer in between.
JP2002236692A 2002-07-12 2002-07-12 Thermal insulating water tank Pending JP2004043011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002236692A JP2004043011A (en) 2002-07-12 2002-07-12 Thermal insulating water tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002236692A JP2004043011A (en) 2002-07-12 2002-07-12 Thermal insulating water tank

Publications (1)

Publication Number Publication Date
JP2004043011A true JP2004043011A (en) 2004-02-12

Family

ID=31712020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002236692A Pending JP2004043011A (en) 2002-07-12 2002-07-12 Thermal insulating water tank

Country Status (1)

Country Link
JP (1) JP2004043011A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007292435A (en) * 2006-03-31 2007-11-08 Osaka Gas Co Ltd Atmosphere open type heat storage tank
JP2012057936A (en) * 2006-03-31 2012-03-22 Osaka Gas Co Ltd Atmosphere open type heat storage tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007292435A (en) * 2006-03-31 2007-11-08 Osaka Gas Co Ltd Atmosphere open type heat storage tank
JP2012057936A (en) * 2006-03-31 2012-03-22 Osaka Gas Co Ltd Atmosphere open type heat storage tank

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