JPH0747036B2 - Supercooled heat storage - Google Patents
Supercooled heat storageInfo
- Publication number
- JPH0747036B2 JPH0747036B2 JP61179074A JP17907486A JPH0747036B2 JP H0747036 B2 JPH0747036 B2 JP H0747036B2 JP 61179074 A JP61179074 A JP 61179074A JP 17907486 A JP17907486 A JP 17907486A JP H0747036 B2 JPH0747036 B2 JP H0747036B2
- Authority
- JP
- Japan
- Prior art keywords
- heat storage
- heat
- storage material
- capillary
- supercooling
- 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.)
- Expired - Fee Related
Links
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
Description
【発明の詳細な説明】 産業上の利用分野 本発明は熱エネルギーを過冷却状態で蓄え、必要な時に
蓄えた熱エネルギーを取り出すことができる、繰返し使
用可能な蓄熱体を利用する分野に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of utilizing a reusable heat storage body capable of storing thermal energy in a supercooled state and taking out the stored thermal energy when needed.
従来の技術 従来より潜熱を利用する潜熱蓄熱材は単位重量当りの蓄
熱量が大きい、一定温度の出力が得られるなどの利点を
有するため、コードレスの装身採暖装置・保温装置・加
温装置に用いる試みが行なわれてきた。しかし、従来の
蓄熱体は過冷却を防止した蓄熱材を用いる試みがほとん
どであった。すなわち、蓄熱材は加熱（蓄熱）完了と同
時に放熱を開始するタイプである。したがって必要な時
に放熱させることができず用途が限定されたものとなっ
た。ところが最近過冷却現象を利用し任意の時に蓄熱材
より熱を取り出す手段が試みられてきた。すなわち、特
開昭61−14283公報あるいは特開昭60−1020公報等に過
冷却蓄熱体と過冷却崩壊する手段とが記載されている。
しかし、この過冷却形蓄熱体を採暖装置などに用いる場
合、次のような問題点があった。すなわち、蓄熱材は蓄
熱時（過冷却時）液体であるため可撓性があるが、放熱
すると固体となるため可撓性がなくなる。この傾向は固
体となり温度が低下すると強くなる。採暖装置としては
可撓性の喪失は致命的である。これを解決するために、
従来の過冷却を防止した蓄熱材では実開昭57−87276号
公報あるいは実開昭57−85154号公報のように可撓性を
有するシートの一部を接合し複数箇の小室を設け、この
小室に蓄熱材を封入し、前記接合部分の屈折により可撓
性をもたせようとする試みが行なわれてきた。しかし過
冷却蓄熱体の場合、熱を取り出すためいは過冷却を崩壊
させる手段が必要であり、その手段としては前記特開昭
61−14283公報あるいは特開昭60−1020公報に記載され
ているような刺激を与える必要がある。このような刺激
手段を実開昭57−85154号公報あるいは実開昭57−8726
号公報に記載されている複数箇の小室それぞれに設ける
ことは実用上困難であった。すなわち、熱を取り出す時
に各小室毎にいちいち刺激を与えねばならない、また、
刺激手段をそれ自体が身体に対して異和感のあるもので
あった。Conventional technology Since latent heat storage materials that use latent heat have advantages such as a large amount of heat storage per unit weight and the ability to obtain a constant temperature output, they are suitable for cordless clothing warming / warming / warming devices. Attempts have been made to use it. However, most of the conventional heat storage bodies have tried to use a heat storage material that prevents supercooling. That is, the heat storage material is of a type that starts radiating heat upon completion of heating (heat storage). Therefore, it was not possible to radiate heat when necessary, and the application was limited. However, recently, a means for extracting heat from the heat storage material at any time by utilizing the supercooling phenomenon has been tried. That is, Japanese Unexamined Patent Publication No. 61-14283, Japanese Unexamined Patent Publication No. 60-1020, etc. describe a supercooled heat storage body and means for disintegrating supercooling.
However, when this supercooling type heat storage body is used for a heating device or the like, there are the following problems. That is, the heat storage material is liquid because it is a liquid when it stores heat (at the time of supercooling), but it loses flexibility because it becomes a solid when it radiates heat. This tendency becomes solid and becomes stronger as the temperature decreases. Loss of flexibility is fatal for a warming device. To solve this,
In a conventional heat storage material that prevents supercooling, a plurality of small chambers are provided by joining a part of a flexible sheet as in Japanese Utility Model Publication No. 57-87276 or Japanese Utility Model Publication No. 57-85154. Attempts have been made to enclose a heat storage material in a small chamber and to make it flexible by refracting the joint portion. However, in the case of a supercooled heat storage body, a means for disintegrating the supercooling is necessary in order to take out heat, and as a means therefor, the above-mentioned JP-A-
It is necessary to give a stimulus as described in 61-14283 or JP-A-60-1020. Such a stimulating means is disclosed in Japanese Utility Model Publication No. 57-85154 or Japanese Utility Model Publication No. 57-8726.
It was practically difficult to provide each of the plurality of small chambers described in the publication. In other words, when taking out heat, each chamber must be stimulated,
The stimulation means itself had a strange feeling to the body.
発明が解決しようとする問題点 本発明は前記蓄熱体の課題を解決しようとするものであ
る。すなわち、過冷却可能な蓄熱体を採暖装置などに用
いた場合、容易に蓄熱でき利便性よく簡単確実に装置全
体の過冷却を崩壊し熱を取り出すことができると共に、
身体に装着した場合可撓性があり異和感のないようにす
るものである。Problems to be Solved by the Invention The present invention is intended to solve the problems of the heat storage body. That is, when a heat storage body capable of supercooling is used in a warming device or the like, heat can be easily stored, and it is possible to conveniently and simply collapse the supercooling of the entire device to take out heat.
When worn on the body, it is flexible and does not give a strange feeling.
問題点を解決するための手段 本発明は上記問題点を解決するために、一対のシートの
適当箇所を接合し複数箇の小室を設け、この小室に過冷
却可能で刺激により液体から固体に相変化し潜熱を放出
する蓄熱体を封入すると共に前記小室間にわたって毛細
管体を設けたものである。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a plurality of small chambers by joining appropriate portions of a pair of sheets, and the small chambers can be supercooled and can be changed from liquid to solid by stimulation. A heat storage body that changes and emits latent heat is enclosed and a capillary body is provided between the small chambers.
作用 本発明は前記構成のため簡単確実に蓄熱材より熱を取り
出すことができると共に可撓性を有する蓄熱体とするこ
とができる。すなわち、前記蓄熱体は過冷却可能で刺激
により容易に過冷却状態が崩壊する蓄熱材が小室に封入
され、各小室が毛細管体により接続されている構成にな
っている。この毛細管体は各小室において蓄熱材と接し
ているため、蓄熱材は毛細現象により毛細管体に吸いあ
げられる。すなわち、毛細管体は蓄熱材で含浸された状
態となっている。したがって、蓄熱体は複数の小室に区
分されているが、蓄熱材は実質的に蓄熱体全体にわたっ
てつながっている。いま、蓄熱体の蓄熱体の一つの小室
に設けられた刺激部に刺激を与えると、この部分で過冷
却が崩壊し蓄熱材は液体から固体へ潜熱を放出しながら
相変化を始める。この過冷却の崩壊は刺激部を有する小
室全体に拡がっていく。次いで毛細管体中の蓄熱材の過
冷却が崩壊し、さらに、隣接する小室の蓄熱材の過冷却
が崩壊する。このように過冷却の崩壊は蓄熱体全体に拡
がっていく。すなわち、一つの小室の蓄熱材の過冷却が
崩壊するとそれは毛細管体を介して蓄熱体全体の小室に
拡がっていく。本発明の過冷却形蓄熱体では可撓性を持
たせるために、蓄熱体に接合部を設け蓄熱材を複数箇の
小室に分散させても１ケ所の刺激で蓄熱体を構成する全
小室の蓄熱材の過冷却を崩壊することができる。Effect The present invention can easily and surely take out heat from the heat storage material and has a flexible heat storage body because of the above configuration. That is, the heat storage material is configured so that a heat storage material that can be supercooled and whose supercooled state is easily collapsed by stimulation is enclosed in the small chambers, and the small chambers are connected by a capillary body. Since this capillary body is in contact with the heat storage material in each small chamber, the heat storage material is sucked up by the capillary body due to the capillary phenomenon. That is, the capillary body is in a state of being impregnated with the heat storage material. Therefore, the heat storage material is divided into a plurality of small chambers, but the heat storage material is substantially connected to the entire heat storage material. Now, when a stimulating portion provided in one small chamber of the heat storage body is stimulated, supercooling collapses at this portion, and the heat storage material starts phase change while releasing latent heat from liquid to solid. The collapse of this supercooling spreads throughout the small chamber having the stimulating portion. Next, the supercooling of the heat storage material in the capillary body collapses, and further the supercooling of the heat storage material in the adjacent small chamber collapses. In this way, the collapse of supercooling spreads throughout the heat storage body. That is, when the supercooling of the heat storage material in one small chamber collapses, it spreads to the small chamber of the entire heat storage body via the capillary body. In the supercooled heat storage body of the present invention, in order to have flexibility, even if the heat storage body is provided with a joint portion and the heat storage material is dispersed in a plurality of small chambers, all the small chambers that constitute the heat storage body are stimulated by one place. The supercooling of the heat storage material can be destroyed.
実施例 以下、本発明の実施例について説明する。第１図は本発
明の蓄熱体１の平面図、第２図は断面図である。蓄熱体
１は二枚の可撓性を有するラミネートフィルム２の適当
箇所を熱融着して得られた接合部３によって複数箇の小
室４に区分された構成となっている。この小室４には過
冷却可能で刺激により液体から固体に相変化し潜熱を放
出する蓄熱体５が封入されている。さらに小室４は毛細
管体６によりお互いに連結されている。また、過冷却を
崩壊させるための刺激口７が設けられている。Examples Examples of the present invention will be described below. FIG. 1 is a plan view of the heat storage body 1 of the present invention, and FIG. 2 is a sectional view. The heat storage body 1 is divided into a plurality of small chambers 4 by a joint portion 3 obtained by heat-sealing appropriate portions of two flexible laminate films 2. The small chamber 4 is enclosed with a heat storage body 5 that can be supercooled and that changes its phase from a liquid to a solid upon stimulation and releases latent heat. Furthermore, the small chambers 4 are connected to each other by a capillary body 6. Further, a stimulating port 7 for disintegrating the supercooling is provided.
以下、各要素毎に説明する。容器２は蓄熱材５と非反応
性・非相溶性の材料でつくられる。特に採暖装置に使用
する場合は可撓性を必要とするためアルミラミネートフ
ィルムがよい。接合部３は熱シールにより設ける。小室
４は周囲を接合部３で囲われたものであり、使用目的に
より任意の大きさ、任意の形とすることができる。蓄熱
材５は塩化カルシウム６水塩、硫酸ナトリウム10水塩、
チオ硫酸ナトリウム５水塩、酢酸ナトリウム３水塩など
の水和塩形蓄熱材であり、融点以上に加熱し冷却すると
容易に過冷却状態とすることができる。また、蓄熱材５
は必要に応じて増粘剤、安定剤または熱伝導性物質とを
混合する。毛細管体６は蓄熱材５と非反応性・非相溶性
の材料よりなる繊維質体、例えば、綿・セルロース等の
天然繊維またはポリエステル、アクリル、ナイロン、芳
香族ポリアミド等の合成繊維よりなる糸状体、織布ある
いは不織布、またはステンレス、銅等よりなる金属細線
体、または各種連続気泡体よりなる。熱シールは前記毛
細管体６を二枚のシート２の間にはさみ込んで行われ、
熱シール後容器材料に密着し固定される。毛細管体６は
熱シール時の熱に耐える必要があり、熱シール時に融解
しシート２材料と一体となってはならない。毛細管体６
が融解しシート２材料と一体となるともはや毛細管力が
なくなり蓄熱材５融液が浸透してこなくなり過冷却の崩
壊がこゝで途切れてしまうからである。例えばラミネー
トフィルムの最内層（融着層）がポリエチレンの場合
は、木綿、ポリエステル、ポリアミド等の糸状体がよ
い。毛細管体の取り付け位置や取り付け方法は特に限定
されるものではなく、接合部３を介して小室と小室とを
結ぶことができたら良い。刺激部７は過冷却状態にある
蓄熱材に刺激を与える部分である。刺激を与える方法と
しては、前記公報に記述されている方法でもよいし、毛
細管体をパッキンを介して容器の外側に設け、この部分
ににじみ出てきた蓄熱材に直接刺激を与える手段でもよ
い。Hereinafter, each element will be described. The container 2 is made of a material that is non-reactive and incompatible with the heat storage material 5. Especially when used in a heat collecting device, an aluminum laminated film is preferable because it requires flexibility. The joint portion 3 is provided by heat sealing. The small chamber 4 is surrounded by the joint portion 3 and can have any size and any shape depending on the purpose of use. The heat storage material 5 is calcium chloride hexahydrate, sodium sulfate decahydrate,
It is a hydrated salt type heat storage material such as sodium thiosulfate pentahydrate and sodium acetate trihydrate, and can be easily brought into a supercooled state by heating above the melting point and cooling. Also, the heat storage material 5
Is mixed with a thickener, a stabilizer or a heat conductive substance as required. The capillary body 6 is a fibrous body made of a material which is non-reactive and incompatible with the heat storage material 5, for example, a filamentous body made of natural fibers such as cotton and cellulose or synthetic fibers such as polyester, acrylic, nylon and aromatic polyamide. , A woven or non-woven fabric, a fine metal wire body made of stainless steel, copper or the like, or various open-cell bodies. The heat sealing is performed by sandwiching the capillary body 6 between the two sheets 2,
After heat-sealing, the container material is closely attached and fixed. The capillary body 6 needs to withstand the heat at the time of heat sealing, and should not melt and not be integrated with the material of the sheet 2 at the time of heat sealing. Capillary body 6
This is because, when melted and integrated with the material of the sheet 2, the capillary force no longer exists, the melt of the heat storage material 5 does not permeate, and the collapse of supercooling is interrupted at this point. For example, when the innermost layer (fusion layer) of the laminate film is polyethylene, filaments of cotton, polyester, polyamide, etc. are preferable. The attachment position and attachment method of the capillary body are not particularly limited, and it suffices if the small chambers can be connected to each other via the joint 3. The stimulator 7 is a part that stimulates the heat storage material in a supercooled state. As a method for giving a stimulus, the method described in the above publication may be used, or a means in which a capillary body is provided on the outside of the container through a packing and a stimulus is directly given to the heat storage material oozing out at this portion may be used.
以下、具体的な一実施例を示す。A specific example will be described below.
最内層がポリエチレンからなる二枚のアルミラミネート
フィルムの間に毛細管体としてポリエステルからなる糸
をはさみ、熱シールにより巾5mmの接合部を５×5cmの正
方形の小室の三方に設ける。この熱シールにあたってす
べての小室が毛細管体により少なくとも１箇所で他の小
室と連結できるように毛細管体をあらかじめ配してお
く。この小室に蓄熱材として酢酸ナトリウム３水塩を20
グラムづゝ充填し、減圧下で他の一方を封口した。この
ようにして小室が１列当り４ケ,2列合計８ケからなる蓄
熱体の一つの小室に刺激口を設けゴム栓で蓄熱材が外部
に漏出しないように栓をした。この蓄熱材を酢酸ナトリ
ウム３水塩の融点58℃より高い80℃に加熱し蓄熱材を完
全に融解した後室温まで冷却すると、蓄熱材は容易に過
冷却状態になった。加熱中小室の一つに150kgの応力を
加えたが、毛細管体より蓄熱材の流動が極度に限定され
ているので蓄熱材が他の小室に移動し偏肉が生ずるよう
なことはなかった。この過冷却した蓄熱体を断熱材で覆
い、刺激口のゴム栓を通して針で蓄熱材に刺激を与える
と過冷却が崩壊し蓄熱体全体から熱の放出がみられた。
人体に装着し０℃の雰囲気下で使用したが約２時間わた
って人体側表面で40℃以上の熱出力があった。また、装
着した場合、接合部を軸として容易に屈曲するため、な
んら異和感を感じることがなく快適な暖房が得られた。
また、蓄熱−放熱サイクルを100回繰返えしたが問題は
なかった。A polyester thread is inserted as a capillary between two aluminum laminated films whose innermost layer is made of polyethylene, and heat-sealed joints having a width of 5 mm are provided on three sides of a square chamber of 5 × 5 cm. For this heat sealing, the capillary bodies are arranged in advance so that all the small chambers can be connected to the other small chambers at least at one location by the capillary bodies. Sodium acetate trihydrate 20 is stored in this small chamber as a heat storage material.
Grams were filled and the other was sealed under reduced pressure. In this way, a stimulating port was provided in one small chamber of the heat storage body consisting of four small cells in one row and a total of eight small cells in two rows, and a rubber stopper was provided to prevent the heat storage material from leaking to the outside. When this heat storage material was heated to 80 ° C. higher than the melting point of sodium acetate trihydrate of 58 ° C. to completely melt the heat storage material and then cooled to room temperature, the heat storage material easily became a supercooled state. A stress of 150 kg was applied to one of the small chambers during heating, but the flow of the heat storage material was extremely limited by the capillary body, so the heat storage material did not move to the other small chambers and uneven thickness did not occur. When the supercooled heat storage body was covered with a heat insulating material and the needle was stimulated through a rubber stopper at the stimulating port, the supercooling collapsed and heat was released from the entire heat storage body.
Although it was attached to a human body and used in an atmosphere of 0 ° C, the heat output was 40 ° C or more on the human body side surface for about 2 hours. Further, when it is attached, since it easily bends around the joint, a comfortable heating can be obtained without any discomfort.
The heat storage-heat radiation cycle was repeated 100 times, but there was no problem.
発明の効果 以上のように本発明の蓄熱体によれば次の効果が得られ
る。Effects of the Invention As described above, according to the heat storage body of the present invention, the following effects are obtained.
すなわち、本発明の蓄熱体は蓄熱材を封入した複数個の
小袋より形成され、しかも各小袋が蓄熱材を含んだ毛細
管体で接続されているため、過冷却状態を崩壊させるた
めの刺激口が１個でも良く、構成が簡単になると共に身
体装着時に刺激口による異和感がなくなる。また、人体
に装着した場合小袋と小袋を結ぶ接合部が屈曲し、外部
応力に容易に追従するため、ほとんど異和感を感じな
い。さらに、小室の蓄熱材と小室の蓄熱材とが毛細管体
で結ばれているため、一部の小室に大きな圧力が加わっ
ても蓄熱材の流動が毛細管体で阻止され他の小室に移動
することがない。したがって蓄熱体に偏肉が生ずること
がない。That is, the heat storage body of the present invention is formed of a plurality of sachets enclosing the heat storage material, and since each of the sachets is connected by a capillary body containing the heat storage material, a stimulating port for collapsing the supercooled state is provided. Only one is required, and the structure is simple and the feeling of discomfort due to the stimulating opening is eliminated when the body is worn. Further, when it is attached to a human body, the joint portion connecting the pouches bends and easily follows external stress, so that a feeling of strangeness is hardly felt. Furthermore, since the heat storage material of the small chamber and the heat storage material of the small chamber are connected by the capillary, even if a large pressure is applied to some of the small chambers, the flow of the heat storage material is blocked by the capillary and moves to other small chambers. There is no. Therefore, uneven thickness does not occur in the heat storage body.
以上のごとく、本発明の蓄熱体構成によれば、簡単に過
冷却状態を崩壊させ熱を取り出すことができると共に可
撓性を有するため異和感のない蓄熱体とすることができ
る。As described above, according to the configuration of the heat storage body of the present invention, the supercooled state can be easily collapsed to take out heat, and since the heat storage body has flexibility, a heat storage body having no discomfort can be obtained.
第１図は本発明の一実施例の蓄熱体の平面図、第２図は
同側断面図である。 １……蓄熱体、２……シート、３……接合部、４……小
室、５……蓄熱体、６……毛細管体、７……刺激口。FIG. 1 is a plan view of a heat storage body according to an embodiment of the present invention, and FIG. 2 is a side sectional view of the same. 1 ... Heat storage body, 2 ... Sheet, 3 ... Joint, 4 ... Small chamber, 5 ... Heat storage body, 6 ... Capillary body, 7 ... Stimulation port.
Claims (2)
小室を設け、この小室に過冷却可能で刺激により液体か
ら固体に相変化し潜熱を放出する蓄熱体を封入すると共
に前記小室間にわたって毛細管体を設けた過冷却形蓄熱
体。1. A plurality of small chambers are provided by joining appropriate portions of a pair of sheets, and a heat storage body that can be supercooled and that undergoes a phase change from a liquid to a solid by stimulation and releases latent heat is enclosed in the small chambers. A supercooled heat storage body that has a capillary body over it.
の範囲第１項記載の過冷却形蓄熱体。2. The supercooling type heat storage body according to claim 1, wherein the sheet is made of a flexible film.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61179074A JPH0747036B2 (en) | 1986-07-30 | 1986-07-30 | Supercooled heat storage |
| CN87104257.6A CN1005870B (en) | 1986-06-17 | 1987-06-15 | Device for storing latent heat |
| US07/062,650 US4817704A (en) | 1986-06-17 | 1987-06-16 | Latent heat storage apparatus |
| CA000539743A CA1292396C (en) | 1986-06-17 | 1987-06-16 | Latent heat storage apparatus |
| GB8714176A GB2195015B (en) | 1986-06-17 | 1987-06-17 | Latent heat storage apparatus |
| KR1019870006124A KR910002843B1 (en) | 1986-06-17 | 1987-06-17 | Latent heat storage apparatus |
| US07/234,777 US4953628A (en) | 1986-06-17 | 1988-08-22 | Latent heat storage apparatus |
| GB9002376A GB2228792B (en) | 1986-06-17 | 1990-02-02 | Latent heat storage apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61179074A JPH0747036B2 (en) | 1986-07-30 | 1986-07-30 | Supercooled heat storage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6335251A JPS6335251A (en) | 1988-02-15 |
| JPH0747036B2 true JPH0747036B2 (en) | 1995-05-24 |
Family
ID=16059634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61179074A Expired - Fee Related JPH0747036B2 (en) | 1986-06-17 | 1986-07-30 | Supercooled heat storage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0747036B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4496611B2 (en) * | 2000-06-27 | 2010-07-07 | パナソニック株式会社 | Heat storage heater |
-
1986
- 1986-07-30 JP JP61179074A patent/JPH0747036B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6335251A (en) | 1988-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |