JP2009299967A - Hot water storage unit - Google Patents
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- JP2009299967A JP2009299967A JP2008153621A JP2008153621A JP2009299967A JP 2009299967 A JP2009299967 A JP 2009299967A JP 2008153621 A JP2008153621 A JP 2008153621A JP 2008153621 A JP2008153621 A JP 2008153621A JP 2009299967 A JP2009299967 A JP 2009299967A
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- hot water
- water storage
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- fabric
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 238000003860 storage Methods 0.000 title claims abstract description 70
- 239000000835 fiber Substances 0.000 claims abstract description 47
- 239000004744 fabric Substances 0.000 claims abstract description 39
- 239000011810 insulating material Substances 0.000 claims abstract description 36
- 239000012784 inorganic fiber Substances 0.000 claims abstract description 27
- 239000004745 nonwoven fabric Substances 0.000 claims description 34
- 239000012212 insulator Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 239000011491 glass wool Substances 0.000 claims description 13
- 230000035699 permeability Effects 0.000 claims description 12
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- 238000004080 punching Methods 0.000 claims description 7
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- 239000004831 Hot glue Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 6
- 230000002265 prevention Effects 0.000 abstract description 5
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- -1 polyethylene Polymers 0.000 description 22
- 238000000034 method Methods 0.000 description 21
- 239000003063 flame retardant Substances 0.000 description 19
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 13
- 229920005989 resin Polymers 0.000 description 13
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 5
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
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- 239000004698 Polyethylene Substances 0.000 description 3
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- XUMBMVFBXHLACL-UHFFFAOYSA-N Melanin Chemical compound O=C1C(=O)C(C2=CNC3=C(C(C(=O)C4=C32)=O)C)=C2C4=CNC2=C1C XUMBMVFBXHLACL-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
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- 229910000831 Steel Inorganic materials 0.000 description 2
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- CEDDGDWODCGBFQ-UHFFFAOYSA-N carbamimidoylazanium;hydron;phosphate Chemical class NC(N)=N.OP(O)(O)=O CEDDGDWODCGBFQ-UHFFFAOYSA-N 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
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- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 150000003014 phosphoric acid esters Chemical class 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920006122 polyamide resin Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 239000001205 polyphosphate Substances 0.000 description 2
- 235000011176 polyphosphates Nutrition 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 238000009849 vacuum degassing Methods 0.000 description 2
- NDRKXFLZSRHAJE-UHFFFAOYSA-N 1,2,3,4,5-pentabromo-6-(2,3,4-tribromophenyl)benzene Chemical group BrC1=C(Br)C(Br)=CC=C1C1=C(Br)C(Br)=C(Br)C(Br)=C1Br NDRKXFLZSRHAJE-UHFFFAOYSA-N 0.000 description 1
- MMINFSMURORWKH-UHFFFAOYSA-N 3,6-dioxabicyclo[6.2.2]dodeca-1(10),8,11-triene-2,7-dione Chemical compound O=C1OCCOC(=O)C2=CC=C1C=C2 MMINFSMURORWKH-UHFFFAOYSA-N 0.000 description 1
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920001634 Copolyester Polymers 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229920002544 Olefin fiber Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
- HMYJWLRIBNEUEJ-UHFFFAOYSA-N ctk4c6807 Chemical compound CCC(C(O)=O)=P(O)=O HMYJWLRIBNEUEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- BTVWZWFKMIUSGS-UHFFFAOYSA-N dimethylethyleneglycol Natural products CC(C)(O)CO BTVWZWFKMIUSGS-UHFFFAOYSA-N 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 229920006225 ethylene-methyl acrylate Polymers 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 239000004767 olefin fiber Substances 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 description 1
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Thermal Insulation (AREA)
- Details Of Fluid Heaters (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
本発明は、貯湯器に関する。更に詳しくは、お湯を貯蔵する金属製の貯湯タンクを、通気性の布帛と非通気性のフイルムからなる袋に断熱材を収納した保温具で被覆された貯湯器に関する。 The present invention relates to a hot water storage device. More particularly, the present invention relates to a hot water storage device in which a metal hot water storage tank for storing hot water is covered with a heat insulating material containing a heat insulating material in a bag made of a breathable fabric and a non-breathable film.
従来から、石綿、ロックウール、グラスウール、ガラス繊維などは、不燃性、保温性、価格面などの優れた特徴から断熱材として広く利用されている。
しかし、スリット加工、穴あけ加工、裁断加工などの取り扱い作業中に、無機繊維が空気中に飛散し、作業者の肌に接触すると、チクチクするなどの作業性、環境問題などが生じた。その対策として、飛散防止用ポリエチレンフイルムなどが使用されている。上記の問題点は、非通気性フイルムの袋に断熱材を入れることで防止できるが、脱気梱包ができず嵩高い袋となり、フイルムで断熱材を挟むことにより飛散が完全には防止できないが、少なくすることで対応している状況である。
また、貯湯器の保温対策として、貯湯器形状に成型加工した、ポリスチレン樹脂の発泡成型体が使用されている。この対策は、保温性には優れているが、貯湯器形状が変わると、金型が必要となるなどの費用がかかること、嵩高なことで、大きな作業場所を要し、且つ、輸送費用が高くなるなどの問題がある。
Conventionally, asbestos, rock wool, glass wool, glass fiber, and the like have been widely used as heat insulating materials because of their excellent characteristics such as incombustibility, heat retention, and price.
However, during handling operations such as slitting, drilling, and cutting, inorganic fibers are scattered in the air and contact with the operator's skin, resulting in workability such as tingling and environmental problems. As a countermeasure, polyethylene film for preventing scattering is used. The above problem can be prevented by putting a heat insulating material in a bag of non-breathable film, but it cannot be deaerated and becomes a bulky bag. It is a situation that is responding by reducing.
In addition, as a heat retention measure for a hot water storage device, a polystyrene resin foam molded body molded into a hot water storage shape is used. This measure is excellent in heat retention, but if the shape of the hot water storage is changed, a cost such as the need for a mold is required, and it is bulky, requiring a large work space and transportation cost. There are problems such as high.
特許文献1には、有機繊維不織布と無機繊維マットを重ね、有機繊維側からニードルパンチ加工して、無機繊維の飛散防止がなされている。これによると、緻密化された断熱材で成形加工性等が向上するが、断熱材の飛散防止が改善できないことが問題である。
ガラス繊維の飛散防止の表面材として、アスベスト紙やアスファルト含浸紙などが使用されていたが環境上および衛生上の問題が懸念され、使用が限定されるという問題がある。
特許文献2には、アルミナゾルを紙の生産時に混抄することが提案されているが、アルミナの歩留まりに限界があり、難燃性の効果が不十分であることが問題となる。
特許文献3には、シリコーン樹脂を用いることが提案されているが、難燃性を充分得る為には、配合量を多くしなければならないことなどが問題である。
特許文献4は、難燃性の無機粉体とバインダーの併用が提案されている。難燃性を充分にするためには、付着量が多くなることとなり、風合いが硬くなるなどの問題がある。
更に、難燃性を得る目的で、熱可塑性合成繊維不織布に難燃剤を付与することが考えられるが、銅製、アルミ製、鉄製などの鋼管の断熱材に使用した場合、腐食するなどの問題が生じた。
In Patent Document 1, an organic fiber nonwoven fabric and an inorganic fiber mat are stacked and needle punched from the organic fiber side to prevent inorganic fibers from scattering. According to this, although the densification heat-insulating material improves the moldability and the like, there is a problem that the prevention of scattering of the heat-insulating material cannot be improved.
As the surface material for preventing the scattering of glass fibers, asbestos paper, asphalt-impregnated paper, and the like have been used, but there is a problem that environmental and sanitary problems are concerned and the use is limited.
Patent Document 2 proposes to mix alumina sol at the time of paper production. However, there is a limit to the yield of alumina, and there is a problem that the effect of flame retardancy is insufficient.
Patent Document 3 proposes to use a silicone resin. However, in order to obtain sufficient flame retardancy, there is a problem that the blending amount must be increased.
Patent Document 4 proposes the combined use of a flame-retardant inorganic powder and a binder. In order to make the flame retardance sufficient, there is a problem that the amount of adhesion increases and the texture becomes hard.
Furthermore, for the purpose of obtaining flame retardancy, it is conceivable to add a flame retardant to the thermoplastic synthetic fiber nonwoven fabric, but there are problems such as corrosion when used as a heat insulating material for steel pipes such as copper, aluminum and iron. occured.
本発明の課題は、上記従来の問題を解決することである。
すなわち、高温のお湯を貯槽するための金属製貯湯タンクの外層部を、断熱材を袋状物に収納した通気性を有する保温具で被覆した貯湯器であり、従って、該保温具が、高温の保温性に優れ、無機質繊維の飛散防止でき、取り扱い作業性、輸送梱包性に優れた保温具を用いた貯湯器を提供することである。
The subject of this invention is solving the said conventional problem.
That is, a hot water storage device in which an outer layer portion of a metal hot water storage tank for storing hot water is covered with a breathable heat insulating material in which a heat insulating material is housed in a bag-like material. It is intended to provide a hot water storage device using a heat retaining device that is excellent in heat retaining property, can prevent scattering of inorganic fibers, and is excellent in handling workability and transport packing property.
本発明者らは、前記課題を解決するため鋭意検討した結果、金属製貯湯タンクの外層部を、通気性を有する布帛と遮蔽性を有するフィルムとを特定の占有割合とした袋状物に断熱材を収納した保温具で被覆することで、断熱材の飛散防止性に優れ、作業性、保温性に優れる、貯湯器を見出し、本発明に到達した。本願で特許請求される発明は、以下の通りである。 As a result of intensive studies to solve the above problems, the present inventors have insulated the outer layer portion of the metal hot water storage tank into a bag-like material having a specific occupation ratio of a fabric having air permeability and a film having shielding properties. The present invention has reached the present invention by discovering a hot water storage device that is excellent in prevention of scattering of the heat insulating material, and excellent in workability and heat retaining property by covering with a heat retaining device containing the material. The invention claimed in the present application is as follows.
1.金属製の貯湯タンクの外層部が、断熱材を袋状物に収納した保温具で被覆されてなる貯湯器であって、該断熱材が、繊径0.1〜15μmの無機質繊維成形体からなり、該袋状物が、通気性を有する布帛と、非通気性のフイルムとからなり、布帛の占有面積が5〜70%の範囲であり、該袋状物の端部接合強度が1N/25mm以上であることを特徴とする貯湯器。
2.前記袋状物において、布帛の通気性が10〜400cc/cm2/secであり、非通気性フィルムの厚みが10〜100μmであることを特徴とする上記1に記載の貯湯器。
3.前記袋状物において、布帛が不織布であり、構成繊維の径が1〜30μmであり、目付が10〜100g/m2であることを特徴とする上記1又は2に記載の貯湯器。
4.前記袋状物において、布帛が難燃性を有することを特徴とする上記1〜3のいずれかに記載の貯湯器。
5.前記不織布がポリエステル系長繊維不織布からなることを特徴とする上記3に記載の貯湯器。
1. A hot water storage device in which an outer layer portion of a metal hot water storage tank is covered with a heat insulator in which a heat insulating material is stored in a bag-like material, and the heat insulating material is made of an inorganic fiber molded body having a fine diameter of 0.1 to 15 μm. The bag-like material is composed of a breathable fabric and a non-breathable film, the occupation area of the fabric is in the range of 5 to 70%, and the end-joining strength of the bag-like material is 1 N / A hot water storage device characterized by being 25 mm or more.
2. 2. The hot water storage apparatus according to 1 above, wherein the bag-like product has a fabric breathability of 10 to 400 cc / cm 2 / sec and a non-breathable film thickness of 10 to 100 μm.
3. 3. The hot water storage device according to 1 or 2 above, wherein in the bag-like product, the fabric is a nonwoven fabric, the diameter of the constituent fibers is 1 to 30 μm, and the basis weight is 10 to 100 g / m 2 .
4). The hot water storage device according to any one of the above items 1 to 3, wherein in the bag-like material, the fabric has flame retardancy.
5. 4. The hot water storage device according to 3 above, wherein the nonwoven fabric is a polyester-based long-fiber nonwoven fabric.
6.前記袋状物において、袋端部がホットメルト系接着剤で接合されていることを特徴とする上記3に記載の貯湯器。
7.前記無機質繊維成形体の嵩密度が、5〜300kg/m3であることを特徴とする上記1〜6のいずれか1項に記載の貯湯器。
8.前記無機質繊維成形体が、ロックウール、グラスウール、ガラス繊維のニードルマット及びグラスウールとガラス繊維のニードルマットの積層体であることを特徴とする上記1〜7のいずれか1項に記載の貯湯器。
9.前記無機質繊維成形体の厚みが1〜300mm、幅5〜2000mm、長さ10〜40000mmに成形されていることを特徴とする上記1〜8のいずれか1項に記載の貯湯器。
10.前記無機質繊維成形体が、少なくとも一箇所に丸、四角、三角及び異形形状の部分打ち抜き加工、部分スリット加工が施され、部分的加工個所の端部周囲が、前記フイルムで密封されていることを特徴とする上記1〜9のいずれか1項に記載の貯湯器。
6). 4. The hot water storage device according to 3 above, wherein the bag end portion is joined with a hot-melt adhesive in the bag-like product.
7). The hot water storage device according to any one of the above 1 to 6, wherein the inorganic fiber molded body has a bulk density of 5 to 300 kg / m 3 .
8). 8. The hot water storage apparatus according to any one of the above 1 to 7, wherein the inorganic fiber molded body is a rock wool, glass wool, glass fiber needle mat, and a laminated body of glass wool and glass fiber needle mat.
9. The hot water storage apparatus according to any one of the above 1 to 8, wherein the inorganic fiber molded body is formed to have a thickness of 1 to 300 mm, a width of 5 to 2000 mm, and a length of 10 to 40,000 mm.
10. The inorganic fiber molded body is subjected to partial punching processing and partial slit processing of round, square, triangular and irregular shapes in at least one place, and the periphery of the end portion of the partially processed portion is sealed with the film. 10. The hot water storage device according to any one of 1 to 9 above.
本発明の貯湯器は、金属製の貯湯タンクの外層部を保温具で被覆してなり、該保温具は、断熱材を通気性の布帛と非通気性のフイルムからなる袋に収納、密封包装したものである。従って、繊維の飛散が防止でき、且つ、保温性に優れていることで、電気温水器、ガス温水器、エコ給湯器、魔法瓶などの貯湯器に広く用いることができる。 The hot water storage device of the present invention is formed by covering the outer layer of a metal hot water storage tank with a heat insulating material, and the heat insulating material contains a heat insulating material in a bag made of a breathable fabric and a non-breathable film, and is sealed and packaged It is a thing. Accordingly, the scattering of the fibers can be prevented and the heat retaining property is excellent, so that it can be widely used in hot water storage devices such as electric water heaters, gas water heaters, eco water heaters, and thermos bottles.
本発明の貯湯器に用いる保温具は、袋状物に断熱材を収納したものである。具体的には、袋全面積に対して5%以上70%以下からなる通気性を有する布帛と、非通気性のフイルムとの構成からなる袋に、無機質繊維成形体からなる断熱材を収納し、充填密封したものが好ましい。
布帛は、適度な通気性を有し、断熱材が飛散せず、しかも真空脱気することが可能な程度の通気性が好ましい。保温具を真空脱気することで、コンパクト化でき、運搬効率、取り扱い性が格段に向上する。
フィルムは非通気性であり、断熱材を完全に遮蔽し、飛散防止できる。
布帛とフィルムとの占有面積を特定割合にすることで、通気性と遮蔽性に優れる袋状物の形成が可能となる。
The heat insulator used for the hot water storage device of the present invention is a bag-like material containing a heat insulating material. Specifically, a heat insulating material made of an inorganic fiber molded body is stored in a bag made up of a breathable fabric consisting of 5% to 70% of the total bag area and a non-breathable film. Filled and sealed are preferred.
The fabric preferably has an appropriate air permeability, does not scatter the heat insulating material, and has an air permeability that allows vacuum degassing. By vacuum degassing of the heat insulator, it can be made compact, and transport efficiency and handling are greatly improved.
The film is non-breathable and can completely shield the insulation and prevent scattering.
By setting the occupation area of the fabric and the film to a specific ratio, it is possible to form a bag-like product having excellent air permeability and shielding properties.
本発明に用いる袋の具体的な構成としては、非通気性のフイルムの少なくとも1箇所以上に通気性を有する布帛を設けていることである。例えば、袋全面積に対して、5%以上70%以下、好ましくは、10〜60%が通気性を有する布帛の構成とする。
布帛の面積率が5%未満では、袋の通気性が低下し、断熱材の収納時に、脱気梱包性が低下し、袋内部の空気が多くなり嵩高な袋体となり、取り扱い性が低下し、脱気梱包時に、破れなどが生じ易くなる。一方、70%超えると、通気性は大きくなるが、脱気梱包性は向上するが、柔軟性、被覆性、価格などが問題となる。
As a specific configuration of the bag used in the present invention, a breathable fabric is provided in at least one location of the non-breathable film. For example, 5% or more and 70% or less, preferably 10 to 60% of the total bag area is configured to have a breathable fabric.
When the area ratio of the fabric is less than 5%, the air permeability of the bag is lowered, the deaeration packing property is lowered when the heat insulating material is stored, the air inside the bag is increased, and the bag body becomes bulky, and the handleability is lowered. During the degassing packaging, tearing or the like is likely to occur. On the other hand, if it exceeds 70%, the air permeability is increased, but the deaeration packing property is improved, but the flexibility, the covering property, the price, etc. are problematic.
本発明に用いる布帛は、10〜400cc/cm2/sec、好ましくは20〜350cc/cm2/secの通気性を有するものであればよく、不織布、メッシュ状物、ワリフ、テープ状クロス、ネット、織物、編物などが好ましく用いられる。より好ましくは、取り扱い性、断熱材の遮蔽性、から不織布や織編み物である。特に、切断面の処理などの必要がないなどの取り扱い性などから不織布が好ましい。
通気性が10cc/cm2/sec未満では、脱気梱包時の圧縮などのよる破れ、及び、脱気時間が多くかかる。一方400cc/cm2/secを超えると、脱気時間は、短縮できるが、飛散防止性が低下する。
The fabric used in the present invention may be any fabric having air permeability of 10 to 400 cc / cm 2 / sec, preferably 20 to 350 cc / cm 2 / sec, such as non-woven fabric, mesh-like material, walliff, tape-like cloth, net A woven fabric, a knitted fabric or the like is preferably used. More preferred are non-woven fabrics and woven or knitted fabrics from the viewpoint of handling properties and heat shielding properties. In particular, a non-woven fabric is preferable from the viewpoint of handling properties such as no need for treatment of a cut surface.
When the air permeability is less than 10 cc / cm 2 / sec, it takes a lot of breakage due to compression at the time of deaeration packing and a deaeration time. On the other hand, if it exceeds 400 cc / cm 2 / sec, the deaeration time can be shortened, but the scattering prevention property decreases.
本発明の袋状物に用いる不織布としては、繊径1〜30μm、好ましくは7〜25μmの短繊維、長繊維、及びその組み合わせなどからなり、強度、通気性、形状の追従性を有する柔軟性に優れることが必要である。
不織布の製造方法は、合成樹脂を溶融さる溶融紡糸法のスパンボンド方式、バインダー繊維を混繊させたサーマルボンド方式、柱状流交絡方式、ニードルパンチ方式、フラッシュ紡糸方式、メルトブロー方式などの単独、又は2種以上により得られる。
不織布の構成繊維としては、特に限定するものでないが、薄くて強度に優れ、被覆性に優れていることであり、例えば、ポリエチレンテレフタレート、ポリブチレンテレフタレート、共重合ポリエステルなどのポリエステル系繊維、ナイロン6、ナイロン66、共重合ポリアミド繊維などのポリアミド系繊維、ポリエチレン、ポリプロピレンン、共重合ポリプロピレンなどのオレフイン系繊維、レーヨン繊維、セルロース繊維、アクリル繊維、鞘がポリエチレン、ポリプロピレン、共重合ポリエステルなどの低融点成分と、芯がポリエチレンテレフタレート、ポリブチレンテレフタレート、ナイロン6などの高融点成分殻なる芯鞘構造、サイドバイサイド構造などの複合繊維などの合成繊維が挙げられ、その中ではポリエステル系長繊維が、耐熱性、難燃性、製袋加工性に優れ、強度が大きく、熱加工性に優れる点から、好ましく用いられる。
The nonwoven fabric used for the bag-like material of the present invention is composed of short fibers, long fibers, and combinations thereof having a fine diameter of 1 to 30 μm, preferably 7 to 25 μm, and has flexibility, strength, air permeability, and shape following ability. It is necessary to be excellent.
Nonwoven fabric manufacturing methods include a spunbond method of a melt spinning method in which a synthetic resin is melted, a thermal bond method in which binder fibers are mixed, a columnar entanglement method, a needle punch method, a flash spinning method, a meltblowing method, etc. It is obtained by 2 or more types.
Although it does not specifically limit as a constituent fiber of a nonwoven fabric, it is thin, it is excellent in intensity | strength, and it is excellent in covering property, For example, polyester-type fibers, such as polyethylene terephthalate, polybutylene terephthalate, copolymer polyester, nylon 6 , Nylon 66, polyamide fibers such as copolyamide fiber, olefin fibers such as polyethylene, polypropylene, copolypropylene, rayon fiber, cellulose fiber, acrylic fiber, sheath is low melting point such as polyethylene, polypropylene, copolyester Synthetic fibers such as composite fibers such as a component and a core-sheath structure in which the core is a high-melting-point component shell such as polyethylene terephthalate, polybutylene terephthalate, nylon 6, and side-by-side structure, among which polyester-based long fibers, Heat, excellent flame retardancy, bag-making processability, strength is large, from the viewpoint of excellent thermal processability, is preferably used.
本発明の袋状物に用いる布帛においては、難燃性があることが好ましく、保温具が燃焼した時に燃え広がらず、自己消化性を有することが好ましい態様である。布帛の難燃性は、原料の樹脂に難燃剤を練り込む原料難燃方法、又は、布帛に難燃剤を塗布させる方法がある。金属製の貯湯タンクに腐食を生じさせなければ特に限定されないが、練り込みタイプのほうが繊維表面に難燃材が露出せず、腐食防止の点で好ましい。 The fabric used for the bag-like product of the present invention preferably has flame retardancy, and it is a preferred embodiment that the thermal insulation does not spread when burned and has self-digestibility. The flame retardancy of a fabric includes a raw material flame retardant method in which a flame retardant is kneaded into a raw material resin, or a method in which a flame retardant is applied to a fabric. The metal hot water storage tank is not particularly limited as long as it does not cause corrosion, but the kneading type is preferable in terms of preventing corrosion because the flame retardant is not exposed on the fiber surface.
例えば、難燃剤としては、トリメチルホスフエート、トリエチルホスフエート、トリブチルホスフエート、トリフエニルホスフエート、トリクレジルホスフエートなどの非ハロゲンリン酸エステル類、ポリホスフエート、芳香族ポリホスフエートなどの特殊リン酸エステル類、含ハロゲンリン酸エステル類、デカブロモジフエニルオキサイド、オクタブロモジフエニルオキサイドなどのデカブロ系などの臭素系難燃剤、メラミン系難燃剤、燐酸グアニジン誘導体、燐窒素系化合物、水酸化アルミニウム、水酸化マグネシウム、炭酸カルシュウムなどの無機充填剤などの1種又は2種以上を0.5〜30wt%、好ましくは0.1〜20wt%添加して用いられる。特に、3−メチルホスフイニコプロピオン酸エステルなどの非ハロゲンリン酸エステル類0.3〜3wt%含有させたジメチルテレフタレート・エチレングリコールのエステル共重合体などが好ましく用いられる。
更に、アクリル系難燃性繊維、エステル系難燃性繊維などの混合などにより、難燃性を調整することが好ましく用いられる。
For example, flame retardants include non-halogen phosphate esters such as trimethyl phosphate, triethyl phosphate, tributyl phosphate, triphenyl phosphate, tricresyl phosphate, and special phosphate esters such as polyphosphate and aromatic polyphosphate. , Halogen-containing phosphoric acid esters, decabrominated brominated flame retardants such as decabromodiphenyl oxide and octabromodiphenyl oxide, melamine based flame retardants, guanidine phosphate derivatives, phosphorous nitrogen compounds, aluminum hydroxide, hydroxylated One or more inorganic fillers such as magnesium and calcium carbonate are added at 0.5 to 30 wt%, preferably 0.1 to 20 wt%. In particular, an ester copolymer of dimethyl terephthalate / ethylene glycol containing 0.3 to 3 wt% of non-halogen phosphate such as 3-methylphosphinicopropionate is preferably used.
Further, it is preferable to adjust the flame retardancy by mixing acrylic flame retardant fiber, ester flame retardant fiber or the like.
本発明に用いられる長繊維不織布は部分熱圧着することで、薄くて、柔軟性、強度に優れたの布帛となる。例えば、凹凸を有するエンボスロールと平滑ロール間で加熱、圧着して接合される。加熱温度は、繊維の軟化温度以上の温度から融点以下の温度範囲である。しかし、低融点繊維の熱劣化を考慮した場合、上下ロールの温度差を150℃以下、好ましくは130℃以下が好ましい。熱圧着の圧力は10〜1000kPa/cm、好ましくは50〜700kPa/cmである。 The long-fiber non-woven fabric used in the present invention is thin, and becomes a thin fabric excellent in flexibility and strength. For example, it is joined by heating and pressure bonding between an embossing roll having irregularities and a smooth roll. The heating temperature is a temperature range from the temperature above the softening temperature of the fiber to below the melting point. However, in consideration of thermal degradation of the low melting point fiber, the temperature difference between the upper and lower rolls is 150 ° C. or less, preferably 130 ° C. or less. The pressure of thermocompression bonding is 10 to 1000 kPa / cm, preferably 50 to 700 kPa / cm.
長繊維不織布の部分熱圧着率は、5〜35%が好ましく、より好ましくは7〜30%である。エンボス模様は、丸状、楕円状、菱形状、円柱状、四角状などの、平行均等配置、千鳥状配置などの均等配置することが好ましい。熱圧着部一個の面積は、0.3〜1.5mm2、好ましくは、0.4〜1.2mm2であり、熱圧着の間隔は、0.3〜3mm、好ましくは、0.5〜2.5mmの均等配置させる。
部分熱圧着率が10%未満では、接合面積が少なくなり、磨耗強度が低下する。一方、30%超えると、磨耗強度が高くなるが、風合いがペーパーライクとなる。
本発明の布帛の目付けは、10〜100g/m2、好ましくは、15〜80g/m2である。目付けが10g/m2未満では、繊維の緻密性が低下して、間隙がひろくなり、被覆しても、断熱材の飛散防止性が低下する。一方、100g/m2超えると、保温材の飛散防止性が向上するが、風合いが硬くなり、厚みが大きくなり、袋体の製袋加工性が低下する。
The partial thermocompression bonding rate of the long-fiber nonwoven fabric is preferably 5 to 35%, more preferably 7 to 30%. The embossed pattern is preferably arranged in a uniform manner such as a parallel uniform arrangement or a staggered arrangement such as a round shape, an elliptical shape, a rhombus shape, a cylindrical shape, or a square shape. Thermocompression bonded portions one of area, 0.3 to 1.5 mm 2, preferably a 0.4 to 1.2 mm 2, the distance between the thermocompression bonding, 0.3 to 3 mm, preferably, 0.5 Distribute equally 2.5 mm.
When the partial thermocompression bonding rate is less than 10%, the bonding area decreases and the wear strength decreases. On the other hand, if it exceeds 30%, the wear strength increases, but the texture becomes paper-like.
The fabric weight of the fabric of the present invention is 10 to 100 g / m 2 , preferably 15 to 80 g / m 2 . When the basis weight is less than 10 g / m 2 , the denseness of the fibers is reduced, the gaps are widened, and even if covered, the scattering prevention property of the heat insulating material is lowered. On the other hand, when it exceeds 100 g / m 2 , the heat-preventing material is prevented from being scattered, but the texture becomes hard, the thickness is increased, and the bag-making processability of the bag body is lowered.
本発明の袋に用いる非通気性のフイルムは、厚みが10〜100μm、好ましくは15〜70μmであり、無機質繊維の飛散が防止でき、充填作業、梱包作業、輸送などで破れないこと、及び、布帛との製袋作業性に優れていることが必要である。
従って、例えば、低密度ポリエチレン、直鎖状低密度ポリエチレン、中密度ポリエチレン、高密度ポリエチレン、エチレン−酢酸ビニル共重合体、エチレン−α−オレフイン共重合体、その他のエチレン系樹脂、ポリプロピレン系樹脂、ポリブテン系樹脂、オレフイン系樹脂として、エチレン−アクリル酸共重合体、エチレン−アクリル酸メチル共重合体、ポリ塩化ビニール樹脂、ポリ塩化ビニリデン樹脂、6−ナイロン、66−ナイロン、ポリアミド樹脂などの一種、2種以上を組み合わせた熱可塑性樹脂が用いられる。
本発明の袋に用いる非通気性のフイルムは難燃性を有することが好ましい。従って、樹脂に難燃剤を0.1〜30wt%添加し、難燃性のフイルムにする事がこのましい。例えば、臭素系難燃剤、メラミン系難燃剤、燐酸グアニジン誘導体、燐窒素系化合物、水酸化アルミニウム、水酸化マグネシウム、炭酸カルシュウムなどの無機充填剤などの1種又は2種以上が用いられる。
The non-breathable film used for the bag of the present invention has a thickness of 10 to 100 μm, preferably 15 to 70 μm, can prevent scattering of inorganic fibers, cannot be broken by filling work, packing work, transportation, etc. It is necessary that the bag-making workability with the fabric is excellent.
Therefore, for example, low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, ethylene-vinyl acetate copolymer, ethylene-α-olefin copolymer, other ethylene resins, polypropylene resins, Polybutene resin, olefin resin, ethylene-acrylic acid copolymer, ethylene-methyl acrylate copolymer, polyvinyl chloride resin, polyvinylidene chloride resin, 6-nylon, 66-nylon, polyamide resin, etc., A thermoplastic resin in which two or more kinds are combined is used.
The non-breathable film used for the bag of the present invention preferably has flame retardancy. Accordingly, it is preferable to add 0.1 to 30 wt% of a flame retardant to the resin to make a flame retardant film. For example, one type or two or more types of inorganic fillers such as brominated flame retardants, melamine flame retardants, guanidine phosphate derivatives, phosphorous nitrogen compounds, aluminum hydroxide, magnesium hydroxide, and calcium carbonate are used.
本発明に用いる袋は、前記通気性の布帛が、袋全面積に対して、5%以上、70%以下、好ましくは、10%〜60%である。従って、袋形状としては、断熱材が収納できれば形状は限定されないが、例えば、筒状、3方シール平袋、サイドガセット袋などが用いられる。具体的事例として、(1)非通気性の片面フイルム、他面に通気性布帛の2枚貼り合わせた袋、(2)片面に非通気性フイルム、他面の部分に通気性布帛を接合した非通気性フイルムとの2枚貼り合わせ袋などが選定できる。 In the bag used in the present invention, the breathable fabric is 5% or more and 70% or less, preferably 10% to 60% with respect to the total area of the bag. Therefore, the shape of the bag is not limited as long as the heat insulating material can be stored. For example, a cylindrical shape, a three-side sealed flat bag, a side gusset bag, or the like is used. As a specific example, (1) a non-breathable single-sided film, a bag in which two sheets of breathable fabric are bonded to the other side, (2) a non-breathable film on one side and a breathable fabric joined to the other side. A two-ply bag with a non-breathable film can be selected.
本発明に用いる袋の製袋加工は、接合方法は特に限定しないが、シール幅を1mm〜20mm、好ましくは、3mm〜15mmで、接合強度が1N/25mm以上、好ましくは、2N/25mm〜100N/25mmである。接合強度が1N/25mm未満では、断熱材の充填作業、及び脱気作業などで破袋するなどの問題が生じ易くなる。
接合方法としては、熱シール、超音波シール、高周波シールなどの融着方式で加工するか、ホットメルト系樹脂、粘着性樹脂などの接着剤方式、ミシン糸などのミシン縫製などが用いられる。
接着剤方式の樹脂としては、ポリエチレン系樹脂、ポリプロピレン系樹脂、共重合ポリエチレン系樹脂、共重合ポリプロピレン系樹脂、エチレン−酢酸ビニル系樹脂、ポリアミド系樹脂、ポリエステル系樹脂などの1種又は2種以上の樹脂が用いられる。
The bag making process of the bag used in the present invention is not particularly limited, but the seal width is 1 mm to 20 mm, preferably 3 mm to 15 mm, and the bonding strength is 1 N / 25 mm or more, preferably 2 N / 25 mm to 100 N. / 25 mm. If the bonding strength is less than 1 N / 25 mm, problems such as bag breakage due to filling work of the heat insulating material, deaeration work, and the like are likely to occur.
As a joining method, processing is performed by a fusion method such as heat sealing, ultrasonic sealing or high frequency sealing, or an adhesive method such as hot melt resin or adhesive resin, or sewing sewing such as sewing thread.
Adhesive type resins include one or more of polyethylene resins, polypropylene resins, copolymer polyethylene resins, copolymer polypropylene resins, ethylene-vinyl acetate resins, polyamide resins, polyester resins, and the like. These resins are used.
本発明に用いる保温具には、通気性を有する袋に収納して用いる為、材質、厚み、密度、繊維径などの異なる無機質繊維成形体が選択できる。
本発明に用いる貯湯器の場合は、タンク下部の加熱ヒーターでお湯がタンク上部に溜まるので、タンク上部の温度が高く、タンク下部が低い温度と成っている。例えば、比較的低温領域(0〜70℃)は、嵩密度の小さい保温具の構成とし、高温領域(70〜95℃)では、嵩密度の高いガラス繊維のニードルマットを積層させた保温具の構成を用いることでより効果的な保温性とすることができる。
具体的事例としては、低温領域の保温具は、厚みが、15〜100mm、好ましくは20〜70mm、嵩密度が5〜30kg/m3、好ましくは10〜25kg/m3である。高温領域としては、厚みが1〜15mm、好ましくは2〜10mm、嵩密度が80〜500kg/m3、好ましくは90〜200kg/m3の高密度保温具と、低密度保温具とを組み合わせた保温具とすることでより効果的な保温性を得ることができる。
Since the heat insulation used in the present invention is housed in a bag having air permeability, it is possible to select inorganic fiber molded bodies having different materials, thicknesses, densities, fiber diameters, and the like.
In the case of the hot water storage device used in the present invention, hot water is accumulated at the upper part of the tank by the heater at the lower part of the tank, so that the temperature at the upper part of the tank is high and the temperature at the lower part of the tank is low. For example, a relatively low temperature region (0 to 70 ° C.) is configured as a heat insulator having a low bulk density, and a high temperature region (70 to 95 ° C.) is a heat insulator in which a glass fiber needle mat having a high bulk density is laminated. By using the configuration, more effective heat retention can be achieved.
Specific examples, the thermal insulation member of the low-temperature region, thickness, 15~100Mm, preferably 20 to 70 mm, a bulk density of 5~30kg / m 3, preferably 10~25kg / m 3. As the high-temperature region, a high-density heat insulator having a thickness of 1 to 15 mm, preferably 2 to 10 mm, and a bulk density of 80 to 500 kg / m 3 , preferably 90 to 200 kg / m 3 , and a low-density heat insulator are combined. More effective heat retention can be obtained by using a heat retainer.
本発明に用いる無機質繊維成形体は、繊径0.1〜15μm、好ましくは0.5〜10μmのロックウール、グラスウール、ガラス繊維のニードルマット及びグラスウールとガラス繊維のニードルマットの積層体から構成され、その形状は目的とする貯湯タンクの形状に応じて自由に選択できる。繊径0.1μm以下は、緻密構成であり、保温性が優れるが、繊維の飛散性が多くなり、厚みの保持が難しくなる。一方繊径が15μ超えると、剛性、厚みの保持性が高くなるが、粗構成となり、保温性が低下すなどの問題が生じる。
例えば、厚みが1〜300mm、好ましくは3〜250mmであり、幅が5〜2000mm、好ましくは7〜1500mm、長さ10〜40000mm、好ましくは、20〜35000mmであり、嵩密度が5〜300kg/m3であることが好ましい。嵩密度の低い場合は、熱伝導率が低くできるが、厚みの保持性が低下する。一方、嵩密度が大きい場合は、熱伝導率がやや高くなるが、厚みの保持性が向上し、高温領域で熱伝導率がやや低くなる。(温度依存性が嵩密度により異なる、低い嵩密度は、温度依存性がやや高い、一方高い嵩密度では、温度依存性がやや低くなる。)
また、外形は細幅テープ状から、丸、四角、などの形状、広い面積を被覆する形状まで特に形状の限定はない。
The inorganic fiber molded body used in the present invention is composed of rock wool, glass wool, glass fiber needle mat having a fine diameter of 0.1 to 15 μm, preferably 0.5 to 10 μm, and a laminate of glass wool and glass fiber needle mat. The shape can be freely selected according to the desired shape of the hot water storage tank. A fine diameter of 0.1 μm or less is a dense structure and has excellent heat retention properties, but the scattering property of the fibers increases and it becomes difficult to maintain the thickness. On the other hand, when the fine diameter exceeds 15 μm, rigidity and thickness retainability are increased, but there are problems such as a coarse structure and a decrease in heat retention.
For example, the thickness is 1 to 300 mm, preferably 3 to 250 mm, the width is 5 to 2000 mm, preferably 7 to 1500 mm, the length is 10 to 40000 mm, preferably 20 to 35000 mm, and the bulk density is 5 to 300 kg / m 3 is preferred. When the bulk density is low, the thermal conductivity can be lowered, but the thickness retainability is lowered. On the other hand, when the bulk density is high, the thermal conductivity is slightly high, but the thickness retention is improved and the thermal conductivity is slightly low in the high temperature region. (Temperature dependence varies depending on bulk density, low bulk density is somewhat high temperature dependence, while high bulk density is somewhat low temperature dependence.)
Further, the outer shape is not particularly limited from a narrow tape shape to a shape such as a circle or square, or a shape covering a large area.
更に、鋼管、電気部品、電気配線などの取り付け部分を有する貯湯タンクは、保温目的で無機質繊維成形体に成形加工が行われる。例えば、成形加工として、例えば、四角形状、長方形状、丸形状などの少なくとも一箇所に、丸、四角、三角、及び異形形状の部分打ち抜き加工、部分スリット加工及びテープ形状などに成形加工が施される。従って、断熱材の形状に特に限定されないが、無機質繊維成形体の周囲は全て、不織布の端部を接合して密封被覆されていることが必要である。
部分的にスリット加工、打ち抜き加工した個所の補修方法は、例えば、断熱材の厚み+接着部を有する大きさの筒状のフイルム、又は不織布を補修個所に装着して、上下から加熱、又は接着性シートにより接着して、密封包装される。
上記の成形加工においては、貯湯器の現場組立工事に先だって、予め、事前に、別の場所で成形加工して袋状物に収納加工し、保温具として脱気梱包して輸送すると、保温具の輸送時、現場工事の取り扱い性が格段に向上する。さらに、貯湯器の現場組立工事での煩雑性がなく、断熱材の飛散が減少し、環境対策上に優れた効果を発揮する。
Furthermore, a hot water storage tank having attachment parts such as steel pipes, electrical parts, and electrical wiring is molded into an inorganic fiber molded body for the purpose of keeping warm. For example, as a forming process, for example, at least one part such as a square shape, a rectangular shape, or a round shape is subjected to partial punching processing of a round shape, a square shape, a triangular shape, or an irregular shape, a partial slit shape, a tape shape, or the like. The Accordingly, the shape of the heat insulating material is not particularly limited, but the entire periphery of the inorganic fiber molded body needs to be sealed and coated by joining the end portions of the nonwoven fabric.
Partially slitting and punching parts repair methods include, for example, installing a tubular film or non-woven fabric having a size of a heat insulating material and a bonded portion on the repairing part, and heating or bonding from above and below. Adhesive sheet and hermetically packaged.
In the above-mentioned forming process, prior to the on-site assembly work of the hot water storage device, if the forming process is performed in advance in another place and stored in a bag-like product, then degassed as a heat insulation package and transported, During transportation, the handling of site construction is greatly improved. Furthermore, there is no complication in the on-site assembly work of the hot water storage device, and the scattering of the heat insulating material is reduced.
本発明の貯湯器に用いる保温具は、通気性を有する袋に収納された嵩高な無機質繊維成形体である。従って、嵩高な状態で保管、及び輸送すると、保管スペースが多く必要となり、且つ、輸送コストが高くなるなどの問題が生じる。その対策として、圧縮梱包、又は、脱気梱包することで、保管スペースが極端に小さくでき、且つ、輸送コストを下げられる。
具体的には、保温具の袋体を3〜50枚重ねて、加圧することで、コンパクトに圧縮でき、更に、非通気性のフイルムに入れ、脱気することで、よりコンパクトな梱包ができる。
本発明の貯湯器は、ステンレスなどの金属製タンクの外層部を保温具で被覆される。通常円筒形状のタンクに、厚みの変形が少なく、且つ、隙間がないように密着被覆することが良好な保温性を得るのに必要なことである。
本発明に用いる保温具は、タンク形状に馴染み易い柔軟性を有し、取り付け作業で、紐、粘着テープ、ホチキス、クリップなどの止め具で容易に装着できる。
本発明に用いる収納用袋体の熱伝導率は、高温領域で大きくなり、熱伝導性が向上する。熱伝導率は20℃では、0.02〜0.04Kcal/mh℃の範囲が好ましく、90℃における熱伝導率は、0.03〜0.05Kcal/mh℃の範囲が好ましい。
The heat insulator used in the hot water storage apparatus of the present invention is a bulky inorganic fiber molded body housed in a bag having air permeability. Therefore, when storing and transporting in a bulky state, there are problems that a large storage space is required and the transportation cost is increased. As a countermeasure, the storage space can be extremely reduced and the transportation cost can be reduced by compressing or deaeration packing.
Specifically, 3 to 50 bags of heat insulators can be stacked and pressed to be compressed compactly, and further put into a non-breathable film and degassed for more compact packaging. .
In the hot water storage device of the present invention, the outer layer portion of a metal tank such as stainless steel is covered with a heat insulator. Usually, a cylindrical tank is required to obtain a good heat retaining property so that there is little deformation in thickness and there is no gap.
The heat insulator used in the present invention has flexibility that is easy to adjust to the shape of the tank, and can be easily attached with a fastener such as a string, an adhesive tape, a staple, a clip or the like in the attaching operation.
The thermal conductivity of the storage bag used in the present invention is increased in the high temperature region, and the thermal conductivity is improved. The thermal conductivity is preferably in the range of 0.02 to 0.04 Kcal / mh ° C. at 20 ° C., and the thermal conductivity in 90 ° C. is preferably in the range of 0.03 to 0.05 Kcal / mh ° C.
本発明を実施例に基づいて説明する。
測定方法は以下のとおりである。
(1)目付(g/m2):縦20cm×横25cmの試料を3カ所切り取り、重量を測定し、その平均値を単位当たりの質量に換算して求める。
(JIS−L−1906)
(2)平均繊維径(μm):顕微鏡で500倍の拡大写真を取り、10本の平均値で求める。
(3)厚み(mm):荷重10kPaでJIS−L−1906に準拠。
(4)平均みかけ密度(g/cm3):目付け/厚みから得た。
(5)通気性:JIS−L−1906フラジュール法に準拠。
(6)発塵性:試料表面を金属棒で叩くことにより発塵させる。次いで、発塵したガラス繊維を吸引ロートに捕集し、捕集繊維を顕微鏡を用いて繊維の本数を測定した。
発塵条件:振とう速度210回/分、時間3分
The present invention will be described based on examples.
The measurement method is as follows.
(1) Weight per unit area (g / m 2 ): A sample having a length of 20 cm × width of 25 cm is cut out at three locations, the weight is measured, and the average value is calculated by converting it into mass per unit.
(JIS-L-1906)
(2) Average fiber diameter (μm): Take a 500-fold magnified photograph with a microscope, and determine the average value of 10 fibers.
(3) Thickness (mm): Conforms to JIS-L-1906 with a load of 10 kPa.
(4) Average apparent density (g / cm 3 ): obtained from basis weight / thickness.
(5) Breathability: Conforms to JIS-L-1906 Frajour method.
(6) Dust generation: Dust is generated by hitting the sample surface with a metal rod. Next, the dusted glass fibers were collected in a suction funnel, and the number of the collected fibers was measured using a microscope.
Dust generation conditions: shaking speed 210 times / minute, time 3 minutes
(7)腐食性:銅製金属板を2cm角に切断し、不織布を5cm角2枚切り取り、厚み5mmのガラス板2枚を用いて、ガラス板/不織布/銅板/不織布/ガラス板に重ねて、荷重1kg/cm2で、温度65℃×湿度85%の恒温高湿槽で7日間処理し、腐食状態を観察して下記の基準で判定した。
5級:金属片の表面の変色・腐食がまったくない。
4級:金属片の表面の変色が僅かにある。
3級:金属片の表面の変色・腐食が僅かにあるが目立たない。
2級:金属片の表面の変色・腐食が少しある。
1級:金属片の表面の変色・腐食が甚だしい。
(7) Corrosiveness: Cut copper metal plate into 2 cm square, cut out 5 cm square of 2 sheets of nonwoven fabric, use 2 sheets of 5 mm thick glass plate, and put on glass plate / nonwoven fabric / copper plate / nonwoven fabric / glass plate, The treatment was performed in a constant temperature and high humidity tank with a load of 1 kg / cm 2 and a temperature of 65 ° C. × humidity of 85% for 7 days, and the corrosion state was observed and judged according to the following criteria.
Grade 5: No discoloration or corrosion of the surface of the metal piece.
Grade 4: There is a slight discoloration of the surface of the metal piece.
Third grade: The surface of the metal piece is slightly discolored and corroded, but is not noticeable.
Second grade: There is little discoloration and corrosion of the surface of the metal piece.
First grade: Discoloration / corrosion of the surface of the metal piece is severe.
(8)引張強力(N/5cm):定長引張試験機を用い、試料幅5cm長さ30cmを切り取り、つかみ間隔20cm、引張速度10cm/minで、引張強度をタテ、ヨコ各々3カ所測定し、最大強度(タテ+ヨコ)/2の平均値で示す。
(9)接合強度(N):定長引張試験機を用い、試料幅25mm長さ200mmを切り取り、接合部分を約50mm上下方向に剥離し、180度剥離するように各々取り付け、つかみ間隔100mm、引張速度10cm/minで、剥離強度をタテ、ヨコ各々3カ所測定し最大強度の平均値で示す。
(10)難燃性:JIS−L−1091 A−3法(水平法)に準じる。
合格:燃焼長さ10cm以下 残燃時間20秒以下
(11)熱伝導率(Kcal/mh℃):JIS−A−9505件列比較法に準ずる。
(8) Tensile strength (N / 5 cm): Using a constant-length tensile tester, cut a sample width of 5 cm and a length of 30 cm, measure the tensile strength at 3 points each in the vertical and horizontal directions at a gripping interval of 20 cm and a tensile speed of 10 cm / min. The average value of maximum strength (vertical + horizontal) / 2 is shown.
(9) Joining strength (N): Using a constant-length tensile tester, a sample width of 25 mm and a length of 200 mm are cut off, the joining part is peeled off by about 50 mm in the vertical direction, and each is attached so as to peel 180 degrees. The tensile strength is 10 cm / min, and the peel strength is measured at three points each for length and width, and the average value of the maximum strength is indicated.
(10) Flame retardancy: Conforms to JIS-L-1091 A-3 method (horizontal method).
Pass: Combustion length 10 cm or less Remaining time 20 seconds or less (11) Thermal conductivity (Kcal / mh ° C.): According to JIS-A-9505 line comparison method.
[実施例1]
ポリエチレンテレフタレートをスパンボンド用紡糸口金から、紡糸温度300℃で平均繊径14μm、目付け50g/m2熱可塑性長繊維ウェブを捕集ネット上に形成させ、圧着面積率が、15%エンボスロール、線圧350N/cm、上下温度を230℃/235℃で熱圧着して長繊維不織布を得た。
次いで、厚み30μmの低密度ポリエチレンフイルムと前記長繊維不織布の袋を作った。前記フイルムと不織布を、各々タテ52cm、ヨコ62cmに切りとり、2枚を重ね、3方向の端部1cm内側に、温度120℃、圧力3kg/cm2の幅3mmの加熱シールバーで熱シールし、3方シールの袋を得た。不織布の占有面積率は50%である。
前記3方シール袋に、厚み50mm、繊維径3μ、嵩密度12kg/m3のグラスウールの断熱材をタテ30cm、ヨコ40cmの四角形状に打ち抜き加工し、得られた無機質繊維成形体を、前記の3方シール袋に収納した後、熱シールで密封包装して本発明の貯湯器に用いる保温具を得た。
得られた保温具の発塵性、腐食性の測定結果を表−1に記載した。
表−1から、本発明の貯湯器に用いる保温具は、発塵性、腐食性、保温性に優れたものであった。
[Example 1]
Polyethylene terephthalate is spun from a spinneret for spunbond, an average fiber diameter of 14 μm at a spinning temperature of 300 ° C., a basis weight of 50 g / m 2 is formed on a collection net, and a crimp area ratio is 15% embossed roll, wire A long-fiber nonwoven fabric was obtained by thermocompression bonding at a pressure of 350 N / cm and an upper and lower temperature of 230 ° C./235° C.
Next, a bag of a low-density polyethylene film having a thickness of 30 μm and the long-fiber nonwoven fabric was prepared. Cut the film and non-woven fabric into 52 cm vertical and 62 cm wide, respectively, and stack two sheets, and heat-seal with a heating seal bar with a width of 3 mm at a temperature of 120 ° C. and a pressure of 3 kg / cm 2 inside 1 cm of the end in three directions, A three-side sealed bag was obtained. The area occupied by the nonwoven fabric is 50%.
The three-side sealed bag was punched into a rectangular shape of 50 cm in thickness, fiber diameter 3 μm, bulk density 12 kg / m 3 in a rectangular shape having a length of 30 cm and a width of 40 cm, and the resulting inorganic fiber molded body was subjected to the above-described process. After storing in a three-side seal bag, it was hermetically packaged with a heat seal to obtain a heat insulator used in the hot water storage device of the present invention.
Table 1 shows the measurement results of dust generation and corrosivity of the obtained heat retaining device.
From Table 1, the heat insulator used for the hot water storage device of the present invention was excellent in dust generation, corrosivity, and heat retention.
[実施例2]
ポリエチレンテレフタレートをスパンボンド用紡糸口金から、紡糸温度300℃で平均繊径12μm、目付け30g/m2熱可塑性長繊維ウェブを捕集ネット上に形成させ、圧着面積率が、25%エンボスロール、線圧350N/cm、上下温度を230℃/235℃で熱圧着して長繊維不織布を得た。次いで、厚み30μmの低密度ポリエチレンフイルムと前記長繊維不織布からなる袋を以下のとおり製造した。
前記フイルムをタテ122cm、ヨコ202cm、タテ122cm、ヨコ142cmとを切り取り、前記不織布をタテ122cm、ヨコ31cmを2枚切り取り、前記フイルムのタテ122cm、ヨコ142cmの両端1cmの部分をフイルムと不織布とを2枚かさねて、1cm内側の部分を幅3mmの熱シールバーで接着させて通気性フイルムを得る。次いで、前記非通気性フイルムと通気性フイルムとを2枚重ねて、端部から内側から1cmの部分に幅3mmで熱シールして3方シール袋を得る。(但し、熱シールは、温度110℃、圧力3kg/cm2)不織布の占有面積率は15%である。
前記3方シール袋に、厚み50mm、繊維径3μ、嵩密度16kg/m3のグラスウールと、厚み5mm、繊維径7μ、嵩密度120kg/m3のガラスニードルマットの断熱材を、各々タテ100cm、ヨコ180cmの四角形状に打ち抜き加工した無機質繊維成形体を、前記の3方シール袋に収納した後、熱シールで密封包装して本発明の貯湯器に用いる保温具を得た。
得られた保温材の発塵性、腐食性の測定結果を表−1に記載した。
表−1から、本発明の貯湯器に用いる保温具は、発塵性、腐食性、脱気梱包性に優れたものであった。
[Example 2]
Polyethylene terephthalate through a spinneret for spun bond, average fiber diameter 12 [mu] m, to form a basis weight 30 g / m 2 thermoplastic long fiber web on the collecting net at a spinning temperature of 300 ° C., crimping area ratio is 25% embossing roll, wire A long-fiber nonwoven fabric was obtained by thermocompression bonding at a pressure of 350 N / cm and an upper and lower temperature of 230 ° C./235° C. Subsequently, the bag which consists of a 30-micrometer-thick low density polyethylene film and the said long-fiber nonwoven fabric was manufactured as follows.
Cut the film 122 cm long, 202 cm wide, 122 cm long, 142 cm wide, cut the non-woven fabric 122 cm long and 31 cm wide, cut the length of the film 122 cm wide, 1 cm both sides of the 142 cm wide film and non-woven fabric Two pieces are stacked and the inner part of 1 cm is adhered with a heat seal bar having a width of 3 mm to obtain a breathable film. Next, two sheets of the non-breathable film and the breathable film are stacked and heat-sealed with a width of 3 mm from the end to a portion 1 cm from the inside to obtain a three-side sealed bag. (However, the heat seal is a temperature of 110 ° C. and a pressure of 3 kg / cm 2 ) The occupied area ratio of the nonwoven fabric is 15%.
In the three-side seal bag, a glass wool having a thickness of 50 mm, a fiber diameter of 3 μm, a bulk density of 16 kg / m 3 , and a glass needle mat having a thickness of 5 mm, a fiber diameter of 7 μm and a bulk density of 120 kg / m 3 , each having a length of 100 cm, The inorganic fiber molded body punched into a square shape of 180 cm in width was stored in the three-side seal bag, and hermetically sealed with a heat seal to obtain a heat insulator used in the hot water storage device of the present invention.
Table 1 shows the measurement results of dust generation and corrosivity of the obtained heat insulating material.
From Table 1, the heat insulator used for the hot water storage device of the present invention was excellent in dust generation, corrosivity, and deaeration packing properties.
[実施例3]
エチレングリコールとジメチレンテレフタレートに、3−メチルホスフイニコプロピオン酸エステルを1.2wt%添加して共重合した難燃性の共重合ポリエチレンテレフタレートをスパンボンド用紡糸口金から、紡糸温度290℃で平均繊径16μm、目付け50g/m2の熱可塑性長繊維ウェブを捕集ネット上に形成させ、圧着面積率が、15%エンボスロール、線圧350N/cm、上下温度を220℃/225℃で熱圧着して実施例1の難燃性エステル不織布を得た。
次いで、厚み50μmの窒素化合物のメラニン系難燃剤15wt%添加した低密度ポリエチレンフイルムと前記難燃性長繊維不織布の袋を作った。前記フイルムと不織布を、各々タテ72cm、ヨコ72cmに切りとり、2枚を重ね、3方向のそれぞれの端部から1cm内側を、温度120℃、圧力3kg/cm2の幅5mmの加熱シールバーで熱シールし、3方シールの袋を得た。不織布の占有面積率は50%である。
前記3方シール袋に、厚み50mm、繊維径3μ、嵩密度12kg/m3のガラスウールの断熱材をタテ50cm、ヨコ50cmの四角形状に打ち抜き加工した無機質繊維成形体を、前記の3方シール袋に収納した後、熱シールで密封包装して本発明の貯湯器に用いる保温具を得た。
得られた保温具の発塵性、腐食性の測定結果を表−1に記載した。
表−1から、本発明の貯湯器に用いる保温具は、発塵性、腐食性、脱気梱包性に優れたものであった。
[実施例4]
タテ30cmヨコ40cm高さ100cmのステンレス製の角形金属タンクに実施例1及び2の保温具を用いて本願発明の貯湯器を作った。この時、実施例2の保温具に、直径7cmの供給パイプ用穴2箇所の打ち抜き加工を行った。その後、厚み30μmの非通気フイルムを用いて打ち抜き穴を補修し、密封包装とした。(直径7cm、長さ15cmの筒状フイルムを用いて、上下それぞれから、表面温度110℃のアイロンで接着した。)
貯湯器に95℃のお湯を一杯入れ、8時間後のお湯の温度を測定した結果は91℃であり、目的とする保温性を有する貯湯器であった。また、その後の目視検査でも問題となる腐食は発生しなかった。
[Example 3]
A flame-retardant copolymerized polyethylene terephthalate copolymerized by adding 1.2 wt% of 3-methylphosphinicopropionic acid ester to ethylene glycol and dimethylene terephthalate was averaged at a spinning temperature of 290 ° C from a spunbond spinneret. A thermoplastic long fiber web having a fine diameter of 16 μm and a basis weight of 50 g / m 2 is formed on a collection net, and heated at a crimping area ratio of 15% embossing roll, linear pressure of 350 N / cm, and vertical temperature of 220 ° C./225° C. The flame-retardant ester nonwoven fabric of Example 1 was obtained by pressure bonding.
Next, a bag of a low-density polyethylene film added with 15 wt% of a nitrogen compound melanin flame retardant having a thickness of 50 μm and the flame retardant long fiber nonwoven fabric was prepared. The film and non-woven fabric are cut into a length of 72 cm and a width of 72 cm, and two sheets are stacked, and 1 cm inside from each end in three directions is heated with a heating seal bar having a temperature of 120 ° C. and a pressure of 3 kg / cm 2 and a width of 5 mm. Sealed to obtain a three-side sealed bag. The area occupied by the nonwoven fabric is 50%.
An inorganic fiber molded article obtained by punching a glass wool heat insulating material having a thickness of 50 mm, a fiber diameter of 3 μm, and a bulk density of 12 kg / m 3 into a square shape of 50 cm in length and 50 cm in width is formed in the three-side seal bag. After storing in a bag, it was hermetically packaged with a heat seal to obtain a heat insulator used in the hot water storage device of the present invention.
Table 1 shows the measurement results of dust generation and corrosivity of the obtained heat retaining device.
From Table 1, the heat insulator used for the hot water storage device of the present invention was excellent in dust generation, corrosivity, and deaeration packing properties.
[Example 4]
A hot water storage device according to the present invention was made using the heat retaining device of Examples 1 and 2 in a square metal tank made of stainless steel having a length of 30 cm, a width of 40 cm, and a height of 100 cm. At this time, the heat insulating tool of Example 2 was punched at two places for a supply pipe hole having a diameter of 7 cm. Thereafter, the punched hole was repaired using a non-ventilated film having a thickness of 30 μm to obtain a sealed package. (A cylindrical film having a diameter of 7 cm and a length of 15 cm was used to adhere from above and below with an iron having a surface temperature of 110 ° C.)
A hot water heater was filled with 95 ° C., and the temperature of the hot water after 8 hours was measured to be 91 ° C., which was the desired hot water storage device. Further, no corrosion that would be a problem in subsequent visual inspection occurred.
[比較例1] 袋のないガラスウールのみ
厚み50mm、繊維径3μ、嵩密度12kg/m3のガラスウールの断熱材をタテ50cm、ヨコ50cmの四角形状に打ち抜き加工した無機質繊維成形体を保温具とした。
表−1から保温具の発塵は多く発生し問題であった。
[Comparative Example 1] Glass wool without bag only Insulating fiber molded body obtained by punching a glass wool insulation material having a thickness of 50 mm, a fiber diameter of 3 μm, and a bulk density of 12 kg / m 3 into a rectangular shape of 50 cm in length and 50 cm in width. It was.
From Table 1, a lot of dust was generated from the heat insulator, which was a problem.
[比較例2] 非通気性袋(フイルムのみ)
厚み50mm、繊維径3μ、嵩密度12kg/m3のガラスウールの断熱材をタテ50cm、ヨコ50cmの四角形状に打ち抜き加工した無機質繊維成形体を実施例1に用いた非通気性フイルムの袋に収納させた。
表−1から保温具の発塵はないが、嵩高な包装形態となり、作業性、梱包性が問題となった。
[Comparative Example 2] Non-breathable bag (only film)
A non-breathable film bag used in Example 1 is an inorganic fiber molded body obtained by punching a glass wool heat insulating material having a thickness of 50 mm, a fiber diameter of 3 μm, and a bulk density of 12 kg / m 3 into a square shape of 50 cm in length and 50 cm in width. I stored it.
Although there was no dust generation of a heat insulator from Table-1, it became a bulky packaging form, and workability | operativity and packing property became a problem.
[比較例3] 布帛面積が5%未満の通気性袋
実施例1の袋で、布帛面積を2%に変えて行った。他は実施例1と同様に行った。
表−1から保温具の発塵はないが、嵩高な包装形態となり、作業性、及び、重ねて圧縮しても、中々袋内の空気が逃げないなどの現象が生じ、脱気梱包に時間が多くかかるなどの問題が生じた。
[Comparative Example 3] Breathable bag with a fabric area of less than 5% The bag of Example 1 was changed to a fabric area of 2%. Others were performed in the same manner as in Example 1.
From Table 1, there is no dust generation of the heat insulation device, but it becomes a bulky packaging form, and workability and even if compressed repeatedly, the phenomenon that the air in the bag does not escape inside occurs, and it takes time for deaeration packaging There was a problem that it took a lot.
本発明の貯湯器は、お湯を貯蔵することのできる金属製の貯湯タンクを、袋に断熱材を収納し、充填包装した保温具で外層部を被覆してなる。該断熱材は、グラスウール、ガラス繊維、ロックウールなどの無機質繊維成形体からなり、該袋が、通気性の布帛と非通気性のフイルムで構成され、断熱材の繊維飛散が防止でき、貯湯タンク表面の腐食しないで、且つ、貯湯タンク外層部の被覆取り付け作業が容易であり、保温性に優れて、圧縮梱包、脱気梱包性などの作業性が良好にでき、コンパクト化ができる。
従って、電気温水器、ガス温水器、エコ給湯器、魔法瓶などの貯湯器に広く用いることができる。
The hot water storage device of the present invention is formed by storing a metal hot water storage tank capable of storing hot water, with a heat insulating material housed in a bag, and covering the outer layer portion with a heat-insulating container filled and packaged. The heat insulating material is made of an inorganic fiber molded body such as glass wool, glass fiber, rock wool, etc., and the bag is composed of a breathable fabric and a non-breathable film, and the heat scattering of the heat insulating material can be prevented. The surface is not corroded, and the outer layer of the hot water storage tank can be easily attached to the cover, has excellent heat retention, can be compressed and can be made compact, and can be made compact.
Therefore, it can be widely used in hot water storage devices such as electric water heaters, gas water heaters, eco water heaters, and thermos bottles.
Claims (10)
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JPS57205600A (en) * | 1981-06-09 | 1982-12-16 | Oriental Asbest | Manufacture of inorganic fiber sheet |
JPH11221872A (en) * | 1998-02-09 | 1999-08-17 | Toray Ind Inc | Heat insulating fiber material |
JPH11343679A (en) * | 1998-04-01 | 1999-12-14 | Nippon Petrochem Co Ltd | Heat insulating material and its using method |
JP3256019B2 (en) * | 1993-03-17 | 2002-02-12 | 三菱製紙株式会社 | Flame retardant sheet material |
JP2004122568A (en) * | 2002-10-02 | 2004-04-22 | Asahi Kasei Fibers Corp | Coated structure, its manufacturing method and heat-shrinkable composite sheet |
JP2007303748A (en) * | 2006-05-12 | 2007-11-22 | Sanyo Electric Co Ltd | Water heater |
JP2008045580A (en) * | 2006-08-11 | 2008-02-28 | Hitachi Appliances Inc | Vacuum heat insulating panel and equipment equipped therewith |
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Publication number | Priority date | Publication date | Assignee | Title |
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JPS57205600A (en) * | 1981-06-09 | 1982-12-16 | Oriental Asbest | Manufacture of inorganic fiber sheet |
JP3256019B2 (en) * | 1993-03-17 | 2002-02-12 | 三菱製紙株式会社 | Flame retardant sheet material |
JPH11221872A (en) * | 1998-02-09 | 1999-08-17 | Toray Ind Inc | Heat insulating fiber material |
JPH11343679A (en) * | 1998-04-01 | 1999-12-14 | Nippon Petrochem Co Ltd | Heat insulating material and its using method |
JP2004122568A (en) * | 2002-10-02 | 2004-04-22 | Asahi Kasei Fibers Corp | Coated structure, its manufacturing method and heat-shrinkable composite sheet |
JP2007303748A (en) * | 2006-05-12 | 2007-11-22 | Sanyo Electric Co Ltd | Water heater |
JP2008045580A (en) * | 2006-08-11 | 2008-02-28 | Hitachi Appliances Inc | Vacuum heat insulating panel and equipment equipped therewith |
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