JPS6022279B2 - heat storage device - Google Patents
heat storage deviceInfo
- Publication number
- JPS6022279B2 JPS6022279B2 JP55163873A JP16387380A JPS6022279B2 JP S6022279 B2 JPS6022279 B2 JP S6022279B2 JP 55163873 A JP55163873 A JP 55163873A JP 16387380 A JP16387380 A JP 16387380A JP S6022279 B2 JPS6022279 B2 JP S6022279B2
- Authority
- JP
- Japan
- Prior art keywords
- heat storage
- heat
- microcapsules
- specific gravity
- storage material
- 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
Links
- 238000005338 heat storage Methods 0.000 title claims description 44
- 239000003094 microcapsule Substances 0.000 claims description 27
- 230000005484 gravity Effects 0.000 claims description 15
- 239000011232 storage material Substances 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 9
- 239000007791 liquid phase Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 239000007790 solid phase Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/023—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material being enclosed in granular particles or dispersed in a porous, fibrous or cellular structure
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Description
【発明の詳細な説明】
本発明は、太陽熱、緋熱などの高温や緋低温を必要に応
じて用いるための蓄熱菱直に関するもので、その目的と
するところは、蓄熱量の大きい蓄熱村の固相−液相間の
洛熱を利用することにより、融点より低い温度において
蓄熱材自体が固化しても、蓄熱容器内の熱媒体は流動性
を保持して、熱伝導特性を向上させることができる蓄熱
装置を提供することにある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat storage system for using high temperatures such as solar heat, scarlet heat, and low temperatures as necessary. By utilizing the heat transfer between solid and liquid phases, even if the heat storage material itself solidifies at a temperature lower than its melting point, the heat transfer medium inside the heat storage container maintains its fluidity and improves its heat conduction properties. The purpose of the present invention is to provide a heat storage device that can.
以下、本発明をその実施例を示す図面にもとづいて説明
する。Hereinafter, the present invention will be explained based on drawings showing embodiments thereof.
第１図はマイクロカプセル１を示したもので、このマイ
クロカプセル１は約０．１肋のポリプロピレン製被膜に
より構成し、かっこの内部に蓄熱材２を充填することに
より構成している。そして前記蓄熱材２としては、融点
が８３００、固相−液相間の潜熱が３＆ａｌ／夕、比重
が固体時１．１、液体時０．９７のナフタレンを使用し
ている。前記マイクロカプセルーは、内部の蓄熱材２が
融解して体積収縮が生ずると、マイク。カプセルー全体
も収縮するもので、このマイクロカプセル１全体の比重
は、これにより１．０９から０．９６に低下した。第２
図は、第１図のマイクロカプセル１を挿入する蓄熱容器
３の内部構造を示したもので、この蓄熱容器３は１その
容積を有し、かつ内部には上下に、蓄熱容器３を加熱す
るための金属管４と外部に熱を放出するための金属管５
を配設している。FIG. 1 shows a microcapsule 1, which is composed of a polypropylene coating having a thickness of approximately 0.1 rib, and is constructed by filling the inside of the parentheses with a heat storage material 2. As the heat storage material 2, naphthalene is used, which has a melting point of 8300, a latent heat between solid phase and liquid phase of 3 &al/night, and a specific gravity of 1.1 when solid and 0.97 when liquid. When the heat storage material 2 inside the microcapsule melts and volumetric contraction occurs, the microcapsule becomes a microphone. The entire capsule also shrank, and the specific gravity of the entire microcapsule 1 decreased from 1.09 to 0.96. Second
The figure shows the internal structure of a heat storage container 3 into which the microcapsules 1 of FIG. metal tube 4 for discharging heat to the outside and metal tube 5 for discharging heat to the outside.
has been set up.
また蓄熱容器３内には、使用温度範囲内で液体であり、
かつマイクロカプセルーを実用上溶解させない熱媒体６
を挿入している。そしてこの熱媒体６としては、本発明
の実施例では、水を用いており、この水の比重は使用温
度範囲では約１であり、かつ前記マイクロカプセル１は
比重が０．９６であるため、水に浮き、逆に固相時には
マイクロカプセル１の比重は１．０９であるため、当然
のことながら、マイクロカプセルーは水中に沈むことに
なる。次に本発明の効果について説明する。In addition, the heat storage container 3 is a liquid within the operating temperature range,
A heat medium that does not practically dissolve microcapsules 6
is inserted. In the embodiment of the present invention, water is used as the heat medium 6, and the specific gravity of this water is approximately 1 in the operating temperature range, and the specific gravity of the microcapsules 1 is 0.96. Since the specific gravity of the microcapsule 1 is 1.09 when it floats on water, and conversely when it is in a solid state, the microcapsule naturally sinks in the water. Next, the effects of the present invention will be explained.
比較のために、上記本発明による蓄熱菱鷹Ａと同一容積
で、かつマイクロカプセル１を用いないこと以外は全く
同一の蓄熱袋直Ｂを製作した。また蓄熱容器３内部の上
下に配設した金属管４，５を中央部に集めて１つ大きな
金属コイルとした以外は蓄熱装置Ａと全く同一の蓄熱愛
瞳Ｃを製作した。そしてマイクロカプセル１内に充填さ
れる蓄熱材２の塁は、蓄熱装贋ＡとＣは同一であるが、
蓄熱装置Ｂはマイクロカプセル１を用いていないため、
蓄熱装置Ａの１．９音入れることができた。これらの蓄
熱装置Ａ，Ｂ，Ｃの特性を求めるために、９５℃の温水
を流量１０そノ分で１時間流して蓄熱した後、３０００
の水を１０そ／分の流量で流し、出口の温度変化を求め
た。For comparison, a heat storage bag straight B was manufactured which had the same volume as the heat storage bag A according to the present invention and was completely the same except that the microcapsules 1 were not used. In addition, a heat storage Aipu C, which is completely the same as the heat storage device A, was manufactured, except that the metal tubes 4 and 5 disposed above and below inside the heat storage container 3 were gathered in the center to form one large metal coil. The base of the heat storage material 2 filled in the microcapsule 1 is the same for heat storage devices A and C, but
Since heat storage device B does not use microcapsules 1,
I was able to record 1.9 tones of heat storage device A. In order to determine the characteristics of these heat storage devices A, B, and C, after storing heat by flowing 95°C hot water at a flow rate of 10 minutes,
of water was flowed at a flow rate of 10 som/min, and the temperature change at the outlet was determined.
その結果を第３図に示す。この第３図は放熱時間と出口
温度との関係を示しているもので、図中、Ａ，Ｂ，Ｃは
それぞれの蓄熱装置Ａ，Ｂ，Ｃに相当するものである。
すなわち、本発明による蓄熱装置ＡとＣは、従来例であ
る篭熱袋直Ｂに比較して、放熱特性がすぐれていること
がわかった。この他に、蓄熱条件や放熱条件を変えて測
定しても、本発明の効果は顕著であった。なお、マイク
。The results are shown in FIG. This FIG. 3 shows the relationship between the heat radiation time and the outlet temperature, and in the figure, A, B, and C correspond to the heat storage devices A, B, and C, respectively.
In other words, it was found that the heat storage devices A and C according to the present invention have superior heat dissipation characteristics as compared to the conventional heat bag straight B. In addition, the effects of the present invention were significant even when the heat storage conditions and heat dissipation conditions were changed. Also, Mike.
カプセル１の被膜の材質は、塩化ピニル樹脂、尿素樹脂
などでも可能であるが、熱伝導度の大きい樹脂が好まし
い。またこの被膜は蓄熱材２や熱媒体６に対して安定し
ていることが必須条件であり、溶解したり、膨潤したり
するものは使用できない。そしてまた、蓄熱材２を充填
したマイクロカプセル１を熱媒体６中に分散させ、そし
てこれをポンプで循環し、かっこの液自身を熱容量の大
さし、蓄熱材として用いてもよい。この場合には、マイ
クロカプセル１を常に熱媒体６中に分散した状態に保つ
ておくために、熱媒体６としては、その比重がマイクロ
カプセル１の比重とほぼ同一のものを用いることが有利
である。また上記実施例で示した蓄熱材２の材料である
ナフタレンは、圃相時の方が液相時よりも体積が小さく
、かつ比重が大きいものであるが、水やテトラハイドロ
フラン水和物のように固相時の方が液相時よりも比重が
小さいものもある。したがって、蓄熱容器３内部の上下
に２つの金属管４，５を配設した場合には、蓄熱時用と
放熱時用に、蓄熱材２の材質によってそれぞれ使い分け
る必要がある。そしてまた上記実施例では、室温より高
い温度の蓄熱について説明したが、室温よりも低い温度
、すなわち蓄冷にも適用できるものである。以上のよう
に本発明によれば、固相−液相間の潜熱を利用する蓄熱
材を内部に充填してなるマイクロカプセルを、使用温度
範囲内で液体である熱媒体中に分散させているもので、
前記マイクロカプセル内の蓄熱材の固化−液化に伴う比
重差により、マイクロカプセルが熱媒体中に浮沈して、
篭熱容器中に対流を生じさせるため、これにより熱伝導
特性を著しく向上させることができるものである。The material for the coating of the capsule 1 may be pinyl chloride resin, urea resin, etc., but resins with high thermal conductivity are preferred. Further, it is an essential condition that this coating is stable against the heat storage material 2 and the heat medium 6, and a coating that dissolves or swells cannot be used. Alternatively, the microcapsules 1 filled with the heat storage material 2 may be dispersed in the heat medium 6, and this may be circulated by a pump to increase the heat capacity of the liquid itself and use it as the heat storage material. In this case, in order to keep the microcapsules 1 dispersed in the heat medium 6 at all times, it is advantageous to use a heat medium 6 whose specific gravity is almost the same as that of the microcapsules 1. be. In addition, naphthalene, which is the material of the heat storage material 2 shown in the above example, has a smaller volume and a higher specific gravity in the field phase than in the liquid phase, but it For example, some substances have a lower specific gravity in the solid phase than in the liquid phase. Therefore, when the two metal tubes 4 and 5 are disposed above and below inside the heat storage container 3, it is necessary to use them properly depending on the material of the heat storage material 2 for heat storage and heat radiation. Furthermore, in the above embodiments, description has been given of heat storage at a temperature higher than room temperature, but the present invention can also be applied to storage at a temperature lower than room temperature, that is, cold storage. As described above, according to the present invention, microcapsules filled with a heat storage material that utilizes latent heat between a solid phase and a liquid phase are dispersed in a heat medium that is liquid within the operating temperature range. Something,
Due to the difference in specific gravity caused by solidification and liquefaction of the heat storage material within the microcapsules, the microcapsules float and sink in the heat medium,
Since convection is generated in the heat exchanger, the heat conduction characteristics can be significantly improved.
第１図は本発明の一実施例における蓄熱装置に用いられ
るマイクロカプセルの拡大断面図、第２図は同蓄熱装置
の概略断面図、第３図は同蓄熱装置の従来例との比較を
示す蓄熱特性図である。
１…・・・マイクロカプセル、２…・・・蓄熱村、３…
・・・篭熱容器、４，５・・・…金属管、６・・・・・
・熱媒体。
第１図第２図
第３図Fig. 1 is an enlarged sectional view of a microcapsule used in a heat storage device according to an embodiment of the present invention, Fig. 2 is a schematic sectional view of the same heat storage device, and Fig. 3 is a comparison with a conventional example of the same heat storage device. It is a heat storage characteristic diagram. 1...Microcapsule, 2...Heat storage village, 3...
・・・Kombo heat container, 4, 5...Metal tube, 6...
・Heating medium. Figure 1 Figure 2 Figure 3
Claims (1)
イクロカプセルを、使用温度範囲内で液体であり、かつ
前記蓄熱材が固相状態におけるマイクロカプセルの比重
と前記蓄熱材が液相状態におけるマイクロカプセルの比
重との間の比重を有する熱媒体中に分散させて蓄熱容器
内に挿入するとともに、前記蓄熱容器内に熱交換のため
の２つの金属管を上部と下部に配設し、かつ上部金属管
はマイクロカプセルの比重が大きくなる方向に、また下
部金属管はマイクロカプセルの比重が小さくなる方向に
、蓄熱容器を加熱あるいは冷却するための熱媒体管とし
てそれぞれ用いてなる蓄熱装置。1 Microcapsules filled with a heat storage material that utilizes latent heat between a solid phase and a liquid phase are liquid within the operating temperature range, and the specific gravity of the microcapsules when the heat storage material is in a solid state is equal to the specific gravity of the microcapsules when the heat storage material is in a liquid phase. The microcapsules are dispersed in a heat medium having a specific gravity between the specific gravity of the microcapsules and inserted into a heat storage container, and two metal tubes for heat exchange are arranged in the upper and lower parts of the heat storage container. , and the upper metal tube is used as a heat medium tube for heating or cooling the heat storage container in the direction in which the specific gravity of the microcapsules increases, and the lower metal tube in the direction in which the specific gravity of the microcapsules decreases. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55163873A JPS6022279B2 (en) | 1980-11-20 | 1980-11-20 | heat storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55163873A JPS6022279B2 (en) | 1980-11-20 | 1980-11-20 | heat storage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5787593A JPS5787593A (en) | 1982-06-01 |
| JPS6022279B2 true JPS6022279B2 (en) | 1985-05-31 |
Family
ID=15782391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55163873A Expired JPS6022279B2 (en) | 1980-11-20 | 1980-11-20 | heat storage device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6022279B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60134191A (en) * | 1983-12-23 | 1985-07-17 | Matsushita Electric Works Ltd | Heat exchanger |
| JPS6136696A (en) * | 1984-07-26 | 1986-02-21 | Hitachi Zosen Corp | Heat exchanger for steady heat generation |
| JPS6397074U (en) * | 1987-12-10 | 1988-06-23 | ||
| DK1798487T3 (en) * | 2005-12-15 | 2010-11-29 | Vaillant Gmbh | Heating or utility water storage unit |
| EP1798486B1 (en) * | 2005-12-15 | 2012-08-29 | Vaillant GmbH | Heating- or sanitary hot water accumulator having at least two heat sources |
| AT502649B1 (en) | 2005-12-19 | 2007-05-15 | Vaillant Austria Gmbh | PLANT FOR POWER HEAT COUPLING |
| JP2010127505A (en) * | 2008-11-26 | 2010-06-10 | Keio Gijuku | Method of forming hydrate, heat storage material and heat storage device |
| CN103629964A (en) * | 2012-08-22 | 2014-03-12 | 北大工学院绍兴技术研究院 | Medium-and-low-temperature heat storage unit |
-
1980
- 1980-11-20 JP JP55163873A patent/JPS6022279B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5787593A (en) | 1982-06-01 |
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