JPH0221162A - Small-sized heat storage tank - Google Patents
Small-sized heat storage tankInfo
- Publication number
- JPH0221162A JPH0221162A JP63170089A JP17008988A JPH0221162A JP H0221162 A JPH0221162 A JP H0221162A JP 63170089 A JP63170089 A JP 63170089A JP 17008988 A JP17008988 A JP 17008988A JP H0221162 A JPH0221162 A JP H0221162A
- Authority
- JP
- Japan
- Prior art keywords
- heat storage
- heat
- ethylene
- storage tank
- temperature
- 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.)
- Granted
Links
- 238000005338 heat storage Methods 0.000 title claims abstract description 32
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 14
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920003023 plastic Polymers 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 13
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 claims abstract description 9
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000005977 Ethylene Substances 0.000 claims abstract description 7
- 229920006225 ethylene-methyl acrylate Polymers 0.000 claims abstract description 6
- 229920001577 copolymer Polymers 0.000 claims abstract description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 7
- 239000005042 ethylene-ethyl acrylate Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 239000002918 waste heat Substances 0.000 abstract description 3
- 239000012790 adhesive layer Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 description 3
- 239000004703 cross-linked polyethylene Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000005043 ethylene-methyl acrylate Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、温水、しかも温度か６５℃ないし１００°
Ｃの温水を蓄熱できる小型蓄熱槽に関する。[Detailed Description of the Invention] [Industrial Application Field] This invention provides hot water at temperatures ranging from 65°C to 100°C.
The present invention relates to a small heat storage tank capable of storing heat of hot water of C.
［従来の技術］
最近、コージェネレーション（熱併給発電）システムま
たは集合住宅等における大規模集中冷暖房システムに用
いる小型蓄熱器が必要とされるようになってきた。現在
まで未だプラスチック管を巻回した蓄熱槽は無いが１本
件発明者等は架橋ポリエチレン管を用いた蓄熱槽を開発
した。（特願昭６３−１０５８４号参照）
ところで、架橋ポリエチレンの潜熱を利用した蓄熱を行
なうには、１１０°Ｃ程度の温度の温水が必要である。[Prior Art] Recently, there has been a need for small-sized heat storage devices for use in cogeneration (combined heat generation) systems or large-scale central heating and cooling systems in apartment complexes and the like. To date, there is no heat storage tank made of plastic pipes, but the inventors of the present invention have developed a heat storage tank using crosslinked polyethylene pipes. (Refer to Japanese Patent Application No. 63-10584.) By the way, hot water at a temperature of about 110° C. is required to store heat using the latent heat of cross-linked polyethylene.
しかし、コージェネレーションシステムあるいは地域冷
暖房システムにおいて１発電機のエンジン冷却の排出水
な十分に利用するためには、もっと低い温度での蓄熱を
行なうことか必要になる。However, in order to fully utilize the exhaust water for cooling the engine of one generator in a cogeneration system or a district heating and cooling system, it is necessary to store heat at a lower temperature.
［発ＩＩが解決しようとする課題］
一般のコージェネレーション（熱併給発電）システムに
おいては、排熱として６５℃から８５°Ｃないし９５°
Ｃ程度の温度の温水かかなり多く存在する、この温水は
発電を行なうエンジンの冷却水であり、そのまま暖房用
あるいは吸収式冷凍機の熱源として利用される。低温度
レベルの排熱の利用はコージェネレーションシステムの
効率上非常に重要な問題である。[Problems that Generation II aims to solve] In general cogeneration (combined heat generation) systems, the exhaust heat ranges from 65°C to 85°C or 95°C.
This hot water, which exists in a considerable amount with a temperature of about 30°C, is used as cooling water for the engine that generates electricity, and is used as it is for space heating or as a heat source for absorption refrigerators. The utilization of low-temperature level waste heat is a very important issue for the efficiency of cogeneration systems.
そこで、この低温度レベルの排熱を十分に温水として暖
房、給湯に利用することはシステムにおける蓄熱が重要
な問題の一つである。Therefore, heat storage in the system is one of the important issues in using this low-temperature level exhaust heat as hot water for heating and hot water supply.
この発明は、このような点に鑑みてなされたもので、６
５℃から１００℃の範囲のある所定の温度で蓄熱するこ
とがてきる小型蓄熱槽を提供することを目的とする。This invention was made in view of the above points.
It is an object of the present invention to provide a small heat storage tank capable of storing heat at a predetermined temperature in the range of 5°C to 100°C.
［［ＦＩを解決するための手段および作用］この発明は
、エチレンよりも融点が低いエチレン酢酸ビニル共重合
体（以下ＥＶＡと記す）、エチレン−アクリル酸エチル
共重合体（以下ＥＥＡと記す）またはエチレン−アクリ
ル酸メチル共重合体（以下、ＨＭＡと記す）等を使用し
て蓄熱槽を形成する。これらの材料はエチレンの含有量
によって融点が変化する。したがって、エチレンの含有
１ｉ）の異なる共重合体を架橋させれば１種々の潜熱温
度をもつプラスチック材料か得られる。[Means and effects for solving FI] The present invention provides an ethylene-vinyl acetate copolymer (hereinafter referred to as EVA), an ethylene-ethyl acrylate copolymer (hereinafter referred to as EEA), which has a melting point lower than that of ethylene, or A heat storage tank is formed using ethylene-methyl acrylate copolymer (hereinafter referred to as HMA). The melting point of these materials changes depending on the ethylene content. Therefore, by crosslinking copolymers with different ethylene contents 1i), plastic materials with different latent heat temperatures can be obtained.
ここて、ＷＩ熱温度とは比熱かと昇した後、急激に元の
ベース値に戻る温度を呼ぶことにする。Here, the WI thermal temperature is defined as the temperature that rises to the specific heat level and then rapidly returns to the original base value.
［実 施 例］
以下、図面に基づいてこの発明の詳細な説明する。第１
図は小型蓄熱槽の断面図である。ＥＶＡ、ＥＥＡまたは
ＥＭＡからなる厚肉のプラスチック管で構成される蓄熱
槽は、コイル状に多層多段に巻回されて中空に積重ねて
蓄熱体ｌとし、断熱板３上の台座４上に載置され、この
周りを保温または断熱層２．２′により覆われてケース
８内に挿入されて構成される。図示しない家庭等の端末
の暖房器、給湯器等への温水を供給する配管５は入口に
閉止弁７が設けられ、上部に流路切換弁６か設けられて
、例えばＥＶＡからなる蓄熱体ｌの一端か接続され、他
端は配管５に接続するようになっている。そしてこの蓄
熱体ｌを構成するプラスチック管９は、その断面を第２
図に示すように、中央に温水の流路１１を形成し、例え
ば酢酸ビニル（ＶＡ）の含有量が２６％のＥＶＡを架橋
して形成したプラスチック管９で、その外周を例えばポ
リ弗化どリニデンの接着層付きテープの耐熱性補強層ｌ
Ｏを１／２ラツプて２層巻きして形成したものである。[Example] Hereinafter, the present invention will be described in detail based on the drawings. 1st
The figure is a sectional view of a small heat storage tank. A heat storage tank made of thick-walled plastic tubes made of EVA, EEA, or EMA is wound into a coil in multiple layers and stacked in the air to form a heat storage body l, and is placed on a pedestal 4 on a heat insulating plate 3. It is inserted into the case 8 with its surroundings covered with a heat insulating or heat insulating layer 2.2'. A pipe 5 that supplies hot water to a heater, water heater, etc. of a terminal in a home (not shown) is provided with a shutoff valve 7 at the inlet, a flow path switching valve 6 at the top, and a heat storage body made of EVA, for example. One end of the pipe is connected, and the other end is connected to the pipe 5. The plastic tube 9 constituting the heat storage body l has a cross section with a second
As shown in the figure, a hot water flow path 11 is formed in the center, and the outer periphery is made of, for example, polyfluoride. Heat-resistant reinforcing layer of Liniden adhesive layer tape
It is formed by wrapping 0 and wrapping it in two layers.
いま、このＥＶＡの比熱の温度特性を第３図に示す、即
ち、比熱は温度７８℃付近にピーク値をもち、７９℃の
温度ではべ一久値に戻っている。Now, the temperature characteristics of the specific heat of this EVA are shown in FIG. 3. That is, the specific heat has a peak value around a temperature of 78°C, and returns to a permanent value at a temperature of 79°C.
即ち、７９゛Ｃの温度で潜熱が得られる。この７９℃を
仮りにＷＪ熱温度と呼ぶことにする。That is, latent heat is obtained at a temperature of 79°C. This 79°C will be temporarily referred to as the WJ thermal temperature.
潜熱温度と酢酸ビニル（ＶＡ）の含有量との関係を第４
図に示す、即ち、潜熱温度はＶＡＩの増加とともにほぼ
直線的に減少する。したがって。The relationship between latent heat temperature and vinyl acetate (VA) content is shown in the fourth section.
As shown in the figure, the latent heat temperature decreases almost linearly with increasing VAI. therefore.
ＶＡにを加減することにより蓄熱温度をコントロールす
ることが可能である。It is possible to control the heat storage temperature by adjusting VA.
第３ＵＡ、第４図の関係はＥＥＡについても殆ど同じ特
性になる。ＨＭＡは少し重量が小さいので２６％の同じ
ＭＡＲＬ （重量％とじて）であるとすれば、はんの僅
か低温側（左側）に寄ることになる。第４図はＨＭＡに
ついてはほんの少し右側に７行移動することになる。The relationships in FIG. 3UA and FIG. 4 have almost the same characteristics for EEA. HMA is a little lighter in weight, so if it has the same MARL of 26% (considered as weight %), it will be slightly closer to the lower temperature side (to the left) of the solder. In FIG. 4, the HMA will be moved slightly to the right by 7 lines.
発電のためのエンジンからの冷却水の排熱温水を直接輸
送して利用する場合、一般に利用できる温度は６５℃以
上と考えられるので、第４図よりＶＡＭは３６％以下と
なる。蓄熱温度の上限を１００℃とすれば、ＶＡｆｆｉ
は８％となる。温度１００°Ｃ以上の温水での蓄熱は架
橋ポリエチレン単２体の管でよい。When exhaust heat hot water from an engine for power generation is directly transported and used, the usable temperature is generally considered to be 65° C. or higher, so from FIG. 4, the VAM is 36% or lower. If the upper limit of heat storage temperature is 100℃, VAffi
is 8%. For heat storage with hot water at a temperature of 100° C. or higher, a pipe made of cross-linked polyethylene can be used.
以上は、エチレン酢酸ビニル共重合体（ＥＶＡ）の例に
ついて説明したが、エチレン−アクリル酸エチル共重合
体（ＥＥＡ）またはエチレン−アクリル酸メチル（ＨＭ
Ａ）についても同様に考えられる。The above describes an example of ethylene vinyl acetate copolymer (EVA), but ethylene-ethyl acrylate copolymer (EEA) or ethylene-methyl acrylate (HM
A) can be considered in the same way.
［発明の効果］
以上説明したように、この発明の小型蓄熱槽は架橋した
エチレン−酢酸ビニル共重合体（ＥＶＡ）を例にすれば
、エチレン［または酢酸ビニル（ＶＡ）］の含有駿によ
り潜熱温度が変化するので、６５℃から１００℃の温度
範囲の任意の温度に適合てきる蓄熱が可能となる小型蓄
熱槽が得られる。そして、低温度レベルの排熱利用する
コーシェネレーション（熱併給発電）システムにおける
蓄熱かｎ（能となる。[Effects of the Invention] As explained above, the small-sized heat storage tank of the present invention, taking cross-linked ethylene-vinyl acetate copolymer (EVA) as an example, generates latent heat due to the content of ethylene [or vinyl acetate (VA)]. Since the temperature changes, a compact heat storage tank is obtained which allows heat storage to be adapted to any temperature in the temperature range from 65°C to 100°C. Then, it becomes possible to store heat in a cocheneration system that uses waste heat at a low temperature level.
このように低温度レベルの排熱の利用効率向上は、コー
ジェネレーションシステムの運用効率を大きく高めるこ
とかできる。特に、地域エネルギー供給システムにおけ
る大規模集合住宅での分散蓄熱への適用において大きな
効果を発揮するものとなる。Improving the utilization efficiency of low-temperature exhaust heat in this way can greatly increase the operational efficiency of cogeneration systems. In particular, it will be highly effective when applied to distributed heat storage in large-scale housing complexes in regional energy supply systems.
第１図は、本発明の実施例を示す小型蓄熱槽の断面図、
第２図は、蓄熱体に利用するプラスチック管の断面図。
第３図は、架橋化エチレン−酢酸ビニル共重合体の比熱
、温度特性を示すグラフ。
第４図は、架橋化エチレン−酢酸ビニル共重合体の潜熱
温度とＶＡ含有量の関係を示すグラフである。
ｌ・・・・蓄熱体（プラスチック）管
２．２°・・・・保温または断熱層
３・・・・断熱板
４・・・・台座
５・・・・配管
６・・・・流路切換弁
７・・・・閉止弁
８・・・・ケースFIG. 1 is a sectional view of a small heat storage tank showing an embodiment of the present invention, and FIG. 2 is a sectional view of a plastic pipe used as a heat storage body. FIG. 3 is a graph showing the specific heat and temperature characteristics of a crosslinked ethylene-vinyl acetate copolymer. FIG. 4 is a graph showing the relationship between latent heat temperature and VA content of a crosslinked ethylene-vinyl acetate copolymer. l...Heat storage body (plastic) pipe 2.2°...Heat insulation or heat insulation layer 3...Insulation board 4...Pedestal 5...Piping 6...Flow path switching Valve 7...Shutoff valve 8...Case
Claims (1)
ク管を多層多段に巻回した構造の温水用蓄熱槽において
、 蓄熱体として用いるプラスチック管はエチレン−酢酸ビ
ニル共重合体またはエチレン−アクリル酸エチル共重合
体またはエチレン−アクリル酸メチル共重合体あるいは
これらの組合せ材料を材料とする３次元の架橋構造をも
つプラスチック管を使用した小型蓄熱槽。 ２、プラスチック管がエチレン含有量で表示して６４％
から９２％エチレン含有の共重合体である請求項１記載
の小型蓄熱槽。[Scope of Claims] 1. In a heat storage tank for hot water having a structure in which thick-walled plastic pipes having a thin heat-resistant reinforcing layer as an outer layer are wound in multiple layers, the plastic pipes used as the heat storage body are made of ethylene-vinyl acetate. A small heat storage tank using a plastic pipe having a three-dimensional crosslinked structure made of a polymer, ethylene-ethyl acrylate copolymer, ethylene-methyl acrylate copolymer, or a combination thereof. 2. The ethylene content of plastic pipes is 64%
2. The small-sized heat storage tank according to claim 1, which is a copolymer containing 92% ethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63170089A JPH0730955B2 (en) | 1988-07-07 | 1988-07-07 | Small heat storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63170089A JPH0730955B2 (en) | 1988-07-07 | 1988-07-07 | Small heat storage tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0221162A true JPH0221162A (en) | 1990-01-24 |
| JPH0730955B2 JPH0730955B2 (en) | 1995-04-10 |
Family
ID=15898441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63170089A Expired - Lifetime JPH0730955B2 (en) | 1988-07-07 | 1988-07-07 | Small heat storage tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0730955B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837017A (en) * | 2013-12-19 | 2014-06-04 | 柳州市京阳节能科技研发有限公司 | Efficient energy-saving anti-freezing accumulated-water standby tank |
| US9951370B2 (en) | 2014-10-09 | 2018-04-24 | 3M Innovative Properties Company | Chemical indicating composition, autoclave process indicator and method for preparing autoclave process indicator |
-
1988
- 1988-07-07 JP JP63170089A patent/JPH0730955B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837017A (en) * | 2013-12-19 | 2014-06-04 | 柳州市京阳节能科技研发有限公司 | Efficient energy-saving anti-freezing accumulated-water standby tank |
| US9951370B2 (en) | 2014-10-09 | 2018-04-24 | 3M Innovative Properties Company | Chemical indicating composition, autoclave process indicator and method for preparing autoclave process indicator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0730955B2 (en) | 1995-04-10 |
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