JPH02298759A - Latent heat accumulation capsule used for latent heat accumulation tank - Google Patents
Latent heat accumulation capsule used for latent heat accumulation tankInfo
- Publication number
- JPH02298759A JPH02298759A JP1116133A JP11613389A JPH02298759A JP H02298759 A JPH02298759 A JP H02298759A JP 1116133 A JP1116133 A JP 1116133A JP 11613389 A JP11613389 A JP 11613389A JP H02298759 A JPH02298759 A JP H02298759A
- Authority
- JP
- Japan
- Prior art keywords
- capsule
- latent heat
- phase change
- heat storage
- melting
- 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
- 239000002775 capsule Substances 0.000 title claims abstract description 88
- 238000009825 accumulation Methods 0.000 title abstract 4
- 239000000126 substance Substances 0.000 claims abstract description 8
- 238000005338 heat storage Methods 0.000 claims description 19
- 230000008018 melting Effects 0.000 abstract description 29
- 238000002844 melting Methods 0.000 abstract description 29
- 239000012071 phase Substances 0.000 abstract description 11
- 239000007791 liquid phase Substances 0.000 abstract description 8
- 239000007790 solid phase Substances 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000012782 phase change material Substances 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- QHFQAJHNDKBRBO-UHFFFAOYSA-L calcium chloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Ca+2] QHFQAJHNDKBRBO-UHFFFAOYSA-L 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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〕
本発明は、潜熱蓄熱タンクに使用する潜熱蓄熱カプセル
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a latent heat storage capsule used in a latent heat storage tank.
従来からビノベ住宅等の温水および冷水等を利用する空
調装置及び潜熱蓄熱システムに、潜熱蓄熱カプセル（以
ドカプセルと略称す）を充填した潜熱蓄熱タンク（以下
タンクと略称す）を使用して熱エネルギーを貯蔵するこ
とが知られている。Conventionally, latent heat storage tanks (hereinafter referred to as tanks) filled with latent heat storage capsules (hereinafter referred to as docapsules) are used to store heat in air conditioners and latent heat storage systems that use hot and cold water, etc. in Binobe houses. Known to store energy.
上記の典型的なものとして潜熱蓄熱タンクを用いた空調
装置を第６図について説明すると、例えば太陽熱利用の
場合は、太陽光２０に面した日照側に水等の媒体の流路
を設けた太陽熱集熱器２１を配設し、これを鉄、不銹鋼
、プラスチック、ＦＲＰ、コンクリート等で構築したタ
ンク２２に配管２３ 、２４を介して接続し、配管２３
にはポンプ２５をまた配管２４には弁２６を配設する。An air conditioner using a latent heat storage tank as a typical example of the above is explained with reference to FIG. A heat collector 21 is provided, and this is connected to a tank 22 constructed of iron, stainless steel, plastic, FRP, concrete, etc. via pipes 23 and 24.
A pump 25 is provided in the pipe 24, and a valve 26 is provided in the pipe 24.
タンク２２は通常約３００ ｉ’の容積を有し、内部に
は高密度ポリエチレン等の薄肉プラスチック製の約７０
叩直径の球状カプセル（仏、クリストビア社により市販
されている）２７が約１．０００個充填されている。球
状カプセル２７には例えば塩化カルシウム６水塩（Ｃａ
Ｃβ２６Ｌｏ）等の相変化物質（ＰＣＭ）が収容されて
いる。集熱器２１内で加熱された約６０℃の媒体がタン
ク２２内のカプセル２７の周囲を通過中にカプセル２７
内の相変化物質を加熱してその一部を融解する。即ちこ
の融解時に媒体の熱の一部が相変化物質の潜熱に変わる
。The tank 22 typically has a volume of about 300 i' and has an internal capacity of about 70 i' made of thin-walled plastic such as high-density polyethylene.
Approximately 1,000 spherical capsules 27 (commercially available from Christobia, France) of diameter 27 are filled. The spherical capsule 27 contains, for example, calcium chloride hexahydrate (Ca
A phase change material (PCM) such as Cβ26Lo) is accommodated. While the medium heated in the heat collector 21 at about 60° C. passes around the capsule 27 in the tank 22, the capsule 27
The phase change material inside is heated to melt a portion of it. That is, during this melting, part of the heat of the medium is converted into latent heat of the phase change material.
このようにして熱を奪われて約３０℃の低温となった媒
体が再び集熱器２１に送られて太陽熱により加熱される
。上記のサイクルを繰返えすうちにカプセル内の相変化
物質は全部融解することにより約５０℃の高い熱エネル
ギーを蓄熱するに至る。The medium, which has thus been deprived of heat and has a low temperature of about 30° C., is again sent to the heat collector 21 and heated by solar heat. As the above cycle is repeated, all of the phase change material within the capsule melts, resulting in storage of high thermal energy of approximately 50°C.
これを空調に使用する際には、高温となったカプセル２
７の周囲に別の媒体を流し、相変化物質が凝固する際の
放熱によって該媒体を加熱して高温媒体を得、これを空
調用の対応機器に送る（図示せず）。When using this for air conditioning, the hot capsule 2
Another medium is flowed around 7, and the medium is heated by the heat released when the phase change material solidifies to obtain a high temperature medium, which is sent to a corresponding equipment for air conditioning (not shown).
また太陽熱集熱器の代りに低料金の深夜電力を利用する
場合は、専用の加熱器を使用して循環媒体を加熱し、こ
れによってカプセル内の相変化物質に蓄熱する。If low-cost late-night electricity is used instead of a solar collector, a special heater is used to heat the circulating medium, thereby storing heat in the phase change material inside the capsule.
上記のカプセルに対して要求される性能は下記の三つで
ある。The following three performances are required for the above capsule.
■ 蓄熱速度即ち融解速度が速いこと、（殊に深夜電力
を使用する場合は融解速度が速いことが望ましい）。■ The heat storage rate, that is, the melting rate is fast (especially when using late-night electricity, it is desirable that the melting rate is fast).
■ 放熱速度即ち凝固速度が速いこと、く凝固速度は融
解速度に略比例する）。■ The heat dissipation rate, that is, the solidification rate, is fast (the solidification rate is approximately proportional to the melting rate).
■ 単価が低いこと、（多数個のカプセルを使用するの
で低価格は重要である）。■ Low unit price (low price is important since a large number of capsules are used).
従来の球状カプセルはカプセル本体の構造が簡単で製造
しやすい利点があるが、形が球形であるためその中心部
までの距離が大きい。そのためカプセルの中心部にある
相変化物質に外部の熱が伝わるのに長時間を要し、融解
速度が遅い欠点がある。Conventional spherical capsules have the advantage that the capsule body has a simple structure and is easy to manufacture, but because of their spherical shape, the distance to the center is long. Therefore, it takes a long time for external heat to be transferred to the phase change material in the center of the capsule, resulting in a slow melting rate.
従って本発明の目的は、従来の球状カプセルに代るカプ
セルの形状を案出して相変化物質の融解速度を速めるこ
とである。It is therefore an object of the present invention to devise an alternative capsule shape to the conventional spherical capsule to increase the rate of melting of phase change materials.
上記の目的は、内部に相変化物質を有して、潜熱蓄熱タ
ンク内に略水平状に保って積み重ね状に収容する潜熱蓄
熱カプセルにおいて、上記カプセルが略偏平形であり、
かつ該カプセルの水平方向の主面の平均径と上下方向の
平均厚さとの比が２＝１〜１０ ： １、好ましくは４
：１〜８：１に形成されたことを特徴とする潜熱蓄熱タ
ンクに使用する潜熱蓄熱カプセルによって達成される。The above object is to provide a latent heat storage capsule having a phase change substance therein and stored in a stacked state in a substantially horizontal state in a latent heat storage tank, wherein the capsule has a substantially flat shape;
and the ratio of the average diameter of the main surface in the horizontal direction to the average thickness in the vertical direction of the capsule is 2=1 to 10:1, preferably 4.
This is achieved by a latent heat storage capsule used in a latent heat storage tank characterized by having a ratio of :1 to 8:1.
以下図面を参照して本発明の詳細な説明する。 The present invention will be described in detail below with reference to the drawings.
実施例１：
前述したように従来の球状カプセルの中心部はカプセル
の外表面から最大距離の位置にあって相変化物質が外部
の熱媒体によって溶ける融解速度が遅い。従って球状カ
プセルの上下方向の厚さを少なくすれば外表面から中心
部の距離が短くなって融解速度が速くなることに着目し
、第１図に示す回転楕円体のカプセル１と第２図に示す
球状カプセル２７とについて比較試験をした。実際には
両型式のカプセルを夫々周囲よりヒーターで一様に加熱
し、またスライダックで温度制御をして、内部に充填し
た相変化物質の変化を観察した。カプセル内部の相変化
物質（ＣａＣ１２６Ｈ２０）は水和物なので、ある程度
の加熱によって融解して、密度の小さい液相２と密度の
大きい固相３とに夫々上下に分離する。４はカプセルの
中心を示す。Example 1: As described above, the center of a conventional spherical capsule is located at the maximum distance from the outer surface of the capsule, and the melting rate of the phase change material is slow due to the external heat medium. Therefore, we focused on the fact that by reducing the vertical thickness of a spherical capsule, the distance from the outer surface to the center becomes shorter and the melting speed becomes faster. A comparative test was conducted on the spherical capsule 27 shown in FIG. In reality, both types of capsules were uniformly heated from the surroundings using a heater, and the temperature was controlled using a slider to observe changes in the phase-change material filled inside. Since the phase change substance (CaC126H20) inside the capsule is a hydrate, it is melted by heating to a certain extent and separates into a lower density liquid phase 2 and a higher density solid phase 3, respectively. 4 indicates the center of the capsule.
この場合の融解のメカニズムは接触融解と対流融解に分
れ、融解の大部分（７０％）は固相３とカプセル１底部
間の接触融解で行われ、残りの３０％はカプセル内の対
流融Ｍで行われることが観察された。これにより固相３
とカプセル１との接触面積が大きい程融解速度が速くな
り、換言すればカプセルを偏平にすれば有効であること
が判明した。The melting mechanism in this case is divided into contact melting and convective melting, with most of the melting (70%) occurring through contact melting between the solid phase 3 and the bottom of the capsule 1, and the remaining 30% occurring through convective melting within the capsule. It was observed that M. This allows solid phase 3
It has been found that the larger the contact area between the capsule 1 and the capsule 1, the faster the melting rate.In other words, it has been found that it is effective to make the capsule flat.
またカプセルが偏平であると界面５上の液相２中で矢印
６の方向の渦７が交互に発生する（この現象はベナール
（仏）の原理で証明されているのでその説明を省略する
）。即ち液相中に互に反対方向の渦が多数発生するので
液相２と固相３間の界面５で対流融解が行われて両相が
よく混合し、これによっても融解速度が速くなる。Furthermore, if the capsule is flat, vortices 7 in the directions of arrows 6 are generated alternately in the liquid phase 2 on the interface 5 (this phenomenon has been proven by Benard's principle, so its explanation will be omitted). . That is, since a large number of vortices in opposite directions are generated in the liquid phase, convective melting occurs at the interface 5 between the liquid phase 2 and the solid phase 3, and the two phases mix well, which also increases the melting rate.
これに反し従来の球状カプセル２７の場合は第２図に示
すように、第１図に比較して面相とカプセル間の接触面
積が小さく、また界面５上の液相２中で回転方向が互に
反対の一対の渦７のみが発生するが、これらの渦７は流
速が遅く、液相２と固相３との混合力が弱く従って融解
速度が遅い。On the other hand, in the case of the conventional spherical capsule 27, as shown in FIG. 2, the contact area between the surface phase and the capsule is smaller than that in FIG. Only a pair of vortices 7 opposite to each other are generated, but these vortices 7 have a slow flow rate and a weak mixing force between the liquid phase 2 and the solid phase 3, resulting in a slow melting rate.
尚、上記の比較試験は同一厚さ、同一容積の高密度ポリ
エチレン製のカプセルについて行なった。The above comparative test was conducted on high-density polyethylene capsules of the same thickness and volume.
第３図は各型式のカプセルの形状の違いによる融解速度
の比較を表す。図において縦軸は融解体債比即ち相変化
物質の融解した体積／内容積を表しその値が１になれば
相変化物質が全部融解したことを示し、横軸は時間を示
す。尚、各型式のカプセルは夫々同一容積に形成されて
いる。FIG. 3 shows a comparison of the melting rates depending on the shape of each type of capsule. In the figure, the vertical axis represents the melt/bond ratio, ie, the melted volume/inner volume of the phase change material, and a value of 1 indicates that the phase change material has all melted, and the horizontal axis represents time. Note that each type of capsule is formed to have the same volume.
図中Ａは従来の球状カプセル、Ｂ、Ｃ及びＤは回転楕円
体状カプセルを表しそのうちＢ、Ｃ及びＤは水平方向の
主面の径を上下方向の平均厚さとの比（アスペクト比と
仮称す）が２：１．４＋１及び８：１のものを夫々示し
、Ｅは上記のアスペクト比が８＝１の円板状カプセルを
示す。In the figure, A is a conventional spherical capsule, B, C, and D are spheroidal capsules, and B, C, and D are the ratio of the diameter of the main surface in the horizontal direction to the average thickness in the vertical direction (tentative name: aspect ratio). 2:1.4+1 and 8:1, respectively, and E indicates a disk-shaped capsule with an aspect ratio of 8=1.
図から判るように回転楕円体状カプセル特に円板状カプ
セル（これらは共に回転体形である）の融解速度は同一
容積の球状カプセルの融解速度に比較した場合、極めて
速いことが判る。このようにアスペクト比が２以上の回
転体形カプセルは球形カプセルに比較して優れているが
、アスペクト比の上限を決定するために例えば円板状カ
プセルについて考察すると、アスペクト比＝１０：１の
円板状カプセルの必要材料量は厚さを同一とじた場合、
それと同一容積の球状カプセルの４倍となるので上限を
１０：１以下にすることが望ましい。As can be seen from the figure, the melting rate of the spheroidal capsule, particularly the disk-shaped capsule (both of which are in the shape of a rotating body), is extremely fast when compared to the melting rate of a spherical capsule of the same volume. In this way, a rotating capsule with an aspect ratio of 2 or more is superior to a spherical capsule, but when considering a disc-shaped capsule, for example, to determine the upper limit of the aspect ratio, a circular capsule with an aspect ratio of 10:1 is superior to a spherical capsule. The amount of material required for a plate-shaped capsule is as follows when the thickness is the same:
Since this is four times the volume of a spherical capsule with the same volume, it is desirable to set the upper limit to 10:1 or less.
実施例２：
第４図は直方体形のカプセル８の斜視図で、この場合も
水平方向の主面９の平均径を上下方向の厚さ１０との比
を２：１以上に採れば速い融解速度が得られることが判
明した。Embodiment 2: FIG. 4 is a perspective view of a rectangular parallelepiped capsule 8. In this case as well, fast melting can be achieved if the ratio of the average diameter of the main surface 9 in the horizontal direction to the thickness 10 in the vertical direction is 2:1 or more. It turns out that speed can be achieved.
実施例３：
本発明によればカプセルを偏平形にしたので結果的に若
干大型（大径）になるが、従来多数個（約１．、ｕｕｕ
個）使用した球状カプセルに比して少数の大形偏平カプ
セルを使用すれば多数のカプセルを水平状にならべる手
間も簡略化できる。但しこの場合球状カプセルに比べて
偏平状カプセルの周囲の媒体の流通が悪くなるので第５
図に示すように例えば円板状カプセル１１の上下に連通
ずる少なくとも一つの筒状貫通孔１２を設けると好都合
である。また該カプセル１１の表面に、外方に突出した
複数の突出部１３を設けると、該突起部１３が、上下に
重ね合わせたカプセル１１間のスペーサの役目をして媒
体の流通性を向上する。Embodiment 3: According to the present invention, the capsule is made into a flat shape, resulting in a slightly larger (large diameter) capsule.
) If a smaller number of large flat capsules are used than the spherical capsules used, the effort of arranging a large number of capsules horizontally can be simplified. However, in this case, the circulation of the medium around the flat capsule is poorer than that of the spherical capsule, so the fifth
As shown in the figure, it is convenient to provide, for example, at least one cylindrical through hole 12 that communicates with the upper and lower parts of the disc-shaped capsule 11. Further, when a plurality of outwardly projecting protrusions 13 are provided on the surface of the capsule 11, the protrusions 13 serve as spacers between the capsules 11 stacked one above the other, thereby improving the circulation of the medium. .
本発明は上記のように構成して主面の径と厚さの比が２
＝１〜１０：１の偏平なカプセルに形成したので、カプ
セルに収容した相変化物資の面相とカプセル底部間の接
触面積が増大し、また広い界面上で相変化物質の液相と
面相との渦流による混合性が増進し、これらによって得
られる接触融解及び対流融解の向上によって相変化物質
の融解速度を著しく増大することができる。The present invention is constructed as described above, and the ratio of the diameter to the thickness of the main surface is 2.
= 1 to 10:1, the contact area between the surface phase of the phase change material housed in the capsule and the bottom of the capsule is increased, and the liquid phase of the phase change material and the surface phase are formed on a wide interface. The increased vortex mixing and the resulting enhanced catalytic and convective melting can significantly increase the melting rate of the phase change material.
第１図は本発明のカプセルの縦断面図、第２図は従来の
球状カプセルの縦断面図、第３図は各型式のカプセルの
形状の違いによる融解速度比較図、示す断面図、第６図
は従来の空調装置を示す全体概略図である。
ｉ、ａ、ｔｉ・・・カプセル、
１２・・・筒状貫通孔、 １３・・・突起部。Fig. 1 is a longitudinal cross-sectional view of the capsule of the present invention, Fig. 2 is a longitudinal cross-sectional view of a conventional spherical capsule, Fig. 3 is a comparison of melting rates depending on the shape of each type of capsule, and Fig. 6 is a cross-sectional view. The figure is an overall schematic diagram showing a conventional air conditioner. i, a, ti...capsule, 12...cylindrical through hole, 13...protrusion.
Claims (1)
水平状に保って積み重ね状に収容する潜熱蓄熱カプセル
において、上記カプセルが略偏平形であり、かつ該カプ
セルの水平方向の主面の平均径と上下方向の平均厚さと
の比が２：１〜１０：１、好ましくは４：１〜８：１に
形成されたことを特徴とする潜熱蓄熱タンクに使用する
潜熱蓄熱カプセル。 ２、上記カプセルが回転体形である請求項１に記載の潜
熱蓄熱カプセル。 ３、上記カプセルが直方体形である請求項１に記載の潜
熱蓄熱カプセル。 ４、上記カプセルが上下に連通した少なくとも一つの筒
状貫通孔を備えた請求項２又は３に記載の潜熱蓄熱カプ
セル。 ５、上記カプセルの表面に外方に突出した複数の突起部
を備えた請求項２、３、４項のいずれか１項に記載の潜
熱蓄熱カプセル。[Scope of Claims] 1. A latent heat storage capsule having a phase change substance therein and stored in a latent heat storage tank in a substantially horizontal manner in a stacked manner, wherein the capsule has a substantially flat shape; A latent heat storage tank characterized in that the ratio of the average diameter of the main surface in the horizontal direction to the average thickness in the vertical direction of the capsule is 2:1 to 10:1, preferably 4:1 to 8:1. Latent heat storage capsule used. 2. The latent heat storage capsule according to claim 1, wherein the capsule is in the form of a rotating body. 3. The latent heat storage capsule according to claim 1, wherein the capsule has a rectangular parallelepiped shape. 4. The latent heat storage capsule according to claim 2 or 3, wherein the capsule is provided with at least one cylindrical through hole that communicates with the top and bottom. 5. The latent heat storage capsule according to any one of claims 2, 3, and 4, further comprising a plurality of protrusions projecting outward on the surface of the capsule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1116133A JP2755422B2 (en) | 1989-05-11 | 1989-05-11 | Latent heat storage capsule used for latent heat storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1116133A JP2755422B2 (en) | 1989-05-11 | 1989-05-11 | Latent heat storage capsule used for latent heat storage tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02298759A true JPH02298759A (en) | 1990-12-11 |
| JP2755422B2 JP2755422B2 (en) | 1998-05-20 |
Family
ID=14679540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1116133A Expired - Lifetime JP2755422B2 (en) | 1989-05-11 | 1989-05-11 | Latent heat storage capsule used for latent heat storage tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2755422B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101722384B1 (en) * | 2016-09-21 | 2017-04-04 | 류상범 | WTA-type Geothermal Heat Pump System with Recycling Tank |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56125524A (en) * | 1979-08-18 | 1981-10-01 | Kitagawa Tekkosho:Kk | Hardening treatment apparatus for soft soil under water |
| JPS56125523A (en) * | 1981-01-30 | 1981-10-01 | Kyokado Eng Co Ltd | Composite grouting work |
| JPS58109283A (en) * | 1981-12-21 | 1983-06-29 | 富士通フアナツク株式会社 | Industrial robot |
| JPS6266504A (en) * | 1985-09-19 | 1987-03-26 | 日立化成工業株式会社 | Insulated wire for multi-wiring board |
| JPS62135962A (en) * | 1985-12-09 | 1987-06-18 | Nec Corp | Chinese sentence input device |
| JPS62210394A (en) * | 1986-03-08 | 1987-09-16 | Agency Of Ind Science & Technol | Latent heat accumulator of capsule type |
-
1989
- 1989-05-11 JP JP1116133A patent/JP2755422B2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56125524A (en) * | 1979-08-18 | 1981-10-01 | Kitagawa Tekkosho:Kk | Hardening treatment apparatus for soft soil under water |
| JPS56125523A (en) * | 1981-01-30 | 1981-10-01 | Kyokado Eng Co Ltd | Composite grouting work |
| JPS58109283A (en) * | 1981-12-21 | 1983-06-29 | 富士通フアナツク株式会社 | Industrial robot |
| JPS6266504A (en) * | 1985-09-19 | 1987-03-26 | 日立化成工業株式会社 | Insulated wire for multi-wiring board |
| JPS62135962A (en) * | 1985-12-09 | 1987-06-18 | Nec Corp | Chinese sentence input device |
| JPS62210394A (en) * | 1986-03-08 | 1987-09-16 | Agency Of Ind Science & Technol | Latent heat accumulator of capsule type |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101722384B1 (en) * | 2016-09-21 | 2017-04-04 | 류상범 | WTA-type Geothermal Heat Pump System with Recycling Tank |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2755422B2 (en) | 1998-05-20 |
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