JPS5997459A - Heat pipe for solar heat collector - Google Patents
Heat pipe for solar heat collectorInfo
- Publication number
- JPS5997459A JPS5997459A JP57206104A JP20610482A JPS5997459A JP S5997459 A JPS5997459 A JP S5997459A JP 57206104 A JP57206104 A JP 57206104A JP 20610482 A JP20610482 A JP 20610482A JP S5997459 A JPS5997459 A JP S5997459A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- water
- heat
- tip
- heat pipe
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/70—Preventing freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/90—Solar heat collectors using working fluids using internal thermosiphonic circulation
- F24S10/95—Solar heat collectors using working fluids using internal thermosiphonic circulation having evaporator sections and condenser sections, e.g. heat pipes
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、太陽熱集熱器のヒートパイプに関する。特に
、水を熱媒体とする太陽熱集熱器のヒートパイプにおい
て、その形状を改良したものに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat pipe for a solar collector. In particular, the present invention relates to a heat pipe for a solar heat collector that uses water as a heat medium and has an improved shape.
従来の太陽熱集熱器のヒートノ（イブ２の形状は、第１
図に示すように、はぼ直線状の直管をなしている。この
ようなヒートパイプ２が、真空ガラス管１の内部に配置
される。このヒートパイプ２中の封入水３の水面４は、
ヒートパイプ２の先端２１においては、はぼパイプの上
面に接するようになっている。ヒートパイプ２と冷却水
との熱交換部（ヘッダー）は第１図の右方にあシ、ヒー
ト。The shape of the conventional solar heat collector Heatno (Eve 2) is the first
As shown in the figure, it is a straight pipe. Such a heat pipe 2 is arranged inside the vacuum glass tube 1. The water surface 4 of the sealed water 3 in this heat pipe 2 is
The tip 21 of the heat pipe 2 is in contact with the upper surface of the hollow pipe. The heat exchange section (header) between the heat pipe 2 and the cooling water is located on the right side of Figure 1.
バイ１２を作動させるためには、ツクイブ２のヘッダー
側を図示矢印Ａの如く少し持上げて傾斜させ、封入水４
が十分Ｂ方向に移動し得るようにして、水がパイプ２の
先端にまで至るようにするのが有 。In order to operate the tube 12, the header side of the tube 2 is slightly lifted and tilted as shown by the arrow A in the figure, and the filled water 4
It is preferable to allow the water to move sufficiently in the direction B so that the water reaches the tip of the pipe 2.
利なので、水面４は水平でおる結果、先端２１での水位
はパイプ２に対してどうしても上がらざるを得ないから
でるる。実際はパイプ２は図の右がわを１°程、匿上げ
て傾斜させるのが通常である。Since the water surface 4 is horizontal, the water level at the tip 21 has no choice but to rise relative to the pipe 2. In reality, the pipe 2 is normally raised and inclined by about 1° on the right side in the figure.
左方のと一ドパイブ２の水位は、さらに表面張力で内壁
に沿って上昇する。The water level in the left pipe 2 further rises along the inner wall due to surface tension.
このようにヒートパイプ２の先端２１は、水がパイプ２
の上面にまで至るので、封入水３が冬期に凍結してその
体積が９％増加した場合、ヒートパイプ２容器が破裂し
易くなるという問題が生じている。In this way, the tip 21 of the heat pipe 2
Therefore, when the sealed water 3 freezes in winter and its volume increases by 9%, there is a problem that the heat pipe 2 container is likely to burst.
本発明の目的は、太陽熱集熱器のヒートパイプ封入水が
凍結しても、パイプ容器が破裂する虞のナイヒートハイ
グを提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a heat pipe in which the pipe container is free from bursting even if the water enclosed in the heat pipe of the solar heat collector freezes.
この目的を達成するため本発明のヒートパイプは、その
先端部を上方に曲げ上げて、ヒートパイプに熱媒体用の
水を入れた場合、先端部におけるその水位の上に余裕空
間が形成されるように構成する。To achieve this objective, the heat pipe of the present invention has its tip bent upward, and when water for a heat medium is poured into the heat pipe, an extra space is formed above the water level at the tip. Configure it as follows.
かかる構成をとれば、水が万一凍結して体積が増えた場
合でも、それは余裕空間に対して増加することになシ、
氷はパイプ内壁を衝圧することなく、従ってパイプ破損
は確実に防止できる。With such a configuration, even if the water freezes and increases in volume, it will not increase relative to the free space.
The ice does not put pressure on the inner wall of the pipe, so pipe breakage can be reliably prevented.
以下本発明の実施例の内の若干につき、図面を参照して
説明する。Some embodiments of the present invention will be described below with reference to the drawings.
第２図に示すのは、本発明の第１の実施例である。FIG. 2 shows a first embodiment of the invention.
このヒートパイプ２は、先端部６を上方に曲げ上げて、
熱媒体用の水３を入れた時その水面４の水位上に余裕空
間７が形成される構成としたものである。このような構
成によシ、水３が凍ることがあっても、それは余裕空間
７で膨張し、パイプ破損をもたらすことは防止できる。This heat pipe 2 has a tip 6 bent upward,
The structure is such that when water 3 for a heat medium is poured, an extra space 7 is formed above the water level of the water surface 4. With such a configuration, even if the water 3 freezes, it can be prevented from expanding in the extra space 7 and causing pipe damage.
本実施例では、先端における水位４１が、パイプ２の内
径の７０％以下になるように、先端部６を曲げ上げ構成
しである。また、本実施例では、先端部６を曲げ上げる
ための折曲部５における水位４２が、パイプ２の内径の
８５％以下になるように設ける。In this embodiment, the tip 6 is bent up so that the water level 41 at the tip is 70% or less of the inner diameter of the pipe 2. Further, in this embodiment, the water level 42 at the bending part 5 for bending the tip part 6 is set to be 85% or less of the inner diameter of the pipe 2.
即ち本例においては、ヒートパイプ３内の封入水の水面
４が、先端部６特にその端板８の位置で低くなり、余裕
空間７ができるようパイプ容器を折曲部５で鉛直上方（
つまシバイブ２を水平の配置状態にした場合における鉛
直方向での上方ンに折曲げて、先端部６を真白管状の形
状にするものであるが、その際ヒートパイク内径をｄ、
先端水位をｙ、折曲部５の水位をＸとすると、下記条件
を満足するパイプの折曲げを行うように、折曲げ傾斜角
を設定する。That is, in this example, the water level 4 of the sealed water in the heat pipe 3 is lowered at the tip 6, particularly at the end plate 8, and the pipe container is bent vertically upward (
When the heat pike vibrator 2 is placed in a horizontal position, it is bent upward in the vertical direction to form the tip 6 into a pure white tubular shape.
Assuming that the water level at the tip is y and the water level at the bending portion 5 is X, the bending inclination angle is set so that the pipe is bent to satisfy the following conditions.
ｘ ／ ｄ （０，７・・・（１）
ｙ／ｄ（０，８５・・・（２）
このような条件で曲げ上げ先端部６を構成すると、設置
の際に、先端まで水３が行くようにヒートパイプ２を水
平から少し傾斜させても、水蒸気がヘッダ一部に行って
凝縮後に帰って来る作動条件と、所期の凍結対策とを良
好に両立させ得る。x/d (0,7...(1) y/d(0,85...(2)) If the bent tip 6 is constructed under these conditions, water 3 will not flow all the way to the tip during installation. Even if the heat pipe 2 is tilted slightly from the horizontal so that the heat pipe 2 is tilted slightly from the horizontal, it is possible to satisfactorily achieve both the operating conditions in which water vapor goes to a part of the header and returns after condensation, and the desired anti-freezing measures.
本例の如きヒートパイプ２は、例えば直管部に、所定条
件で曲げ上がるように形成した先端部６を銀鑞付けする
ことなどによシ、容易に製造することができる。The heat pipe 2 of this example can be easily manufactured by, for example, silver-brazing a straight pipe portion with a tip portion 6 formed to be bent upward under predetermined conditions.
第３図は、本例と従来例について、水位に応じての凍結
時歪の変化を測定したデータである。被検体は、本例の
ものが外径２２．２ｍｍ、肉厚０．８關の鋼管から成る
先端部６（曲げ上げ先端部）を備えたヒートパイプ、従
来例が第１図の如き直管のヒートパイプである。各々先
端に歪ゲージを設置して測定を行った。この図かられか
るように、黒点で示す従来例の直管では、水位７５％程
度から歪が増え、８０％ではかな）の歪とな９、水位８
５％で水を入れると大きな歪発生となる。これに対し、
白点て示す本実施例の場合は、水位８５％程度までは殆
んど歪の増加はない。９０％以上で歪増加となるだけで
ある。FIG. 3 shows data obtained by measuring changes in freezing strain according to the water level for this example and the conventional example. The test object is a heat pipe with a tip 6 (bent tip) made of a steel pipe with an outer diameter of 22.2 mm and a wall thickness of 0.8 mm, and a conventional example is a straight pipe as shown in Fig. 1. It is a heat pipe. A strain gauge was installed at the tip of each to perform measurements. As can be seen from this figure, in the conventional straight pipe shown by the black dots, the strain increases from about 75% of the water level, and at 80% the strain reaches 9.
When water is added at 5%, large distortion occurs. On the other hand,
In the case of this embodiment, which is shown as a white dot, there is almost no increase in strain up to about 85% of the water level. At 90% or more, the distortion only increases.
試験条件は、温度変化幅が±１５０−＋ｊイクル、設置
角は水平設置で、ともに全長２５０ｍｍ（本実施例のも
のは曲げ上げ先端部６が３０＋＋ｍ）のものを用いた。The test conditions were that the temperature change width was ±150−+j cycles, the installation angle was horizontal, and the total length was 250 mm (the bent tip 6 of this example was 30++ m).
このデータから、本例の如きヒートパイプを用いれば、
水平設置の場合でも少なくとも最高水位８５％までは、
凍結時歪の問題は全く発生しないことがわかる。上記し
た（１）（２）式の条件は、具体的に実施するに当たっ
てこのような各種実験により求めて設定した設定条件で
ある。From this data, if we use a heat pipe like the one in this example,
Even in the case of horizontal installation, up to at least 85% of the maximum water level,
It can be seen that the problem of distortion during freezing does not occur at all. The conditions of formulas (1) and (2) described above are setting conditions determined and set through various experiments such as these in the specific implementation.
従って本構成によれば、水位が最大となるヒートパイプ
折曲部５における水位ｙも、直管の場合よシ高くできる
ため、結局ヒートパイプの許容設置角をも大きくできる
という利点を有することになる。Therefore, according to this configuration, the water level y at the bent portion 5 of the heat pipe where the water level is maximum can be made higher than in the case of a straight pipe, which has the advantage that the permissible installation angle of the heat pipe can be increased. Become.
即ち、第６図を参照して、ヒートパイプを傾斜させた時
の効果について述べれば、次のとおシである。第６図は
、本例構成の形状を有するヒートパイプと、従来の直管
のビートパイプとにつき、ともに水平から０．９°傾斜
して設置して、１日士２０Ｃの熱ティクルを印加後、そ
の外径を測定した結果である。被検体はともに長さ２．
５ｍの銅製のもので、直径２２．２ｍｍ、肉厚０．８
ｍｍＴ： ｈす、水は１５０ｄ封入されている。白点で
示した本発明の実施例（曲げ上げ先端部５長さ１００＋
ｏ＋）の方は、熱ブイクル回数が２４回経過後でも、っ
ま９２４日経過後でも、外径に変化はみられなかった。That is, referring to FIG. 6, the effect of tilting the heat pipe will be described as follows. Figure 6 shows a heat pipe having the configuration of this example and a conventional straight beat pipe, both installed at an angle of 0.9° from the horizontal, and after applying a heat tickle of 20C per day. , is the result of measuring its outer diameter. Both objects have a length of 2.
It is made of copper and is 5m long, with a diameter of 22.2mm and a wall thickness of 0.8mm.
mmT: 150d of water is enclosed. Example of the present invention shown by white dots (bent tip 5 length 100+
o+), no change was observed in the outer diameter even after 24 thermal cycles or 924 days.
ところが従来の直管の場合は、サイクル回数に応じて外
径は変化してお！Ｄ、２４−！ｌ−イクル経過後に、は
外径は６ｍｍ増加して、破裂段階に近づいている。However, in the case of conventional straight pipes, the outer diameter changes depending on the number of cycles! D, 24-! After 1 cycle, the outer diameter has increased by 6 mm and is approaching the rupture stage.
このように本構成を用いれば、０．９°の傾斜を行って
も、と−トパイグ凍結時には、従来の直管ヒートパイプ
と比較して凍結による破損の発生の虞はきわめて小さく
、破損することは殆んどめシ得ないものである。In this way, if this configuration is used, even if the heat pipe is tilted by 0.9°, there is a very small risk of damage due to freezing when the Topaig freezes, compared to conventional straight pipe heat pipes, and there is no risk of damage. is almost useless.
第４図は本発明の他の実施例を示すもので、曲げ上げた
先端部６は円みを有している。このためこのビートパイ
プ２は絞シ出し加工で製造でき、折曲部５を溶接す為必
要がない。第２図の例の形状であれば、その折曲部は溶
接せざるを得ない場合が多いが、本例の場合は絞シ加工
でき、溶接不要で、大量生産用に適するという効果があ
る。なお、θは傾斜角で娶る。FIG. 4 shows another embodiment of the present invention, in which the bent tip 6 has a round shape. Therefore, this beat pipe 2 can be manufactured by drawing and cutting, and there is no need to weld the bent portion 5. In the case of the shape shown in the example shown in Figure 2, the bent portion would often have to be welded, but in this case, it can be drawn and welded, making it suitable for mass production. . Note that θ is an inclination angle.
第５図は、更に別の実施例である。この例のヒートパイ
プ２は、２か所の折曲部５ａ、５ｂにおいて曲げ上げた
ものである。特にヒートパイプ２の管径が比較的小さい
場合は、折シ曲げ場所の数を多くすると、許容設定誤差
を大きくできるという利点がある。FIG. 5 shows yet another embodiment. The heat pipe 2 in this example is bent up at two bends 5a and 5b. Particularly when the pipe diameter of the heat pipe 2 is relatively small, increasing the number of bending locations has the advantage of increasing the allowable setting error.
第４図、第５図の例とも、折曲部５ｔ５ａ＊５ｂの水位
は内径の８５％以下、先端の水位は７５％になるように
先端部６の曲げ上げのための折曲げ角度を設定して、実
際の使用に供することができる。In both the examples shown in FIGS. 4 and 5, the bending angle for bending up the tip 6 is set so that the water level at the bend 5t5a*5b is 85% or less of the inner diameter, and the water level at the tip is 75%. Then, it can be put to actual use.
上記説明した各ヒートパイプ２は、例えば第７図及び第
８図に示すようにして実嘩に使用するこ第７図は、ヒー
トパイプ２の配設状態を示すもので、ガラス管１の内部
にヒートパイプ２が封入されている。該ヒートパイプ２
の他端がわはガラス管ｌが出て、熱交換用のヘッダー９
に接続されている。図中符号１０はヒートパイプ凝縮部
であシ、１１は冷却水であって、この凝縮部＝１０で暴
発した熱媒体（水）が凝縮して、熱交換が行われる。ガ
ラス管ｌの内部は真空になっている。ヒー分が蒸発して
いることを想定しておシ、少ない量第８図は、このよう
雇太陽熱集熱器を屋根１２の上に設置した状態を示す。Each of the heat pipes 2 described above is used in actual operation as shown in FIGS. 7 and 8, for example. FIG. 7 shows the arrangement of the heat pipes 2 inside the glass tube 1. A heat pipe 2 is enclosed in. The heat pipe 2
At the other end, a glass tube l comes out, and a header 9 for heat exchange is installed.
It is connected to the. In the figure, reference numeral 10 is a heat pipe condensing section, and 11 is cooling water, and the heat medium (water) exploded in this condensing section 10 is condensed to perform heat exchange. The inside of the glass tube l is vacuumed. It is assumed that the heat content is evaporated, but the amount is small. FIG. 8 shows a state in which such a solar heat collector is installed on the roof 12.
図における左右方向は南北方向でアシ、従って図示の如
く屋根の南北方向に対して、真空ガラス管ｌは東西方向
に設置される。このような設置であると、夏至、春秋分
。The left-right direction in the figure is a north-south direction, so the vacuum glass tube 1 is installed in the east-west direction with respect to the north-south direction of the roof as shown. With this kind of setting, the summer solstice, spring and autumn equinox.
冬至の各時期の光線はそれぞれ符号■、ｎ、ｍで示すよ
うになシ、東西方向にほぼ水平に設置したビートパイプ
２に対し、−日中効率の良い光照射が行われる。図中′
１′ｉは反射鏡であって、光を能率良くヒートパイプ２
に集光させる役割を果たす。The light rays at each time of the winter solstice are indicated by symbols ■, n, and m, respectively.The beet pipe 2, which is installed almost horizontally in the east-west direction, is efficiently irradiated with light during the day. In the figure′
1'i is a reflecting mirror that efficiently transfers light to the heat pipe 2.
It plays the role of concentrating light.
上述の如く本発明に係る太陽熱集熱器のヒートパイプは
、その先端部を上方に曲げ上げて、熱媒体用の水を入れ
た場合その水位の上に余裕空間が形成される構成とした
ので、パイプ内の水が凍結、、した場合でもその体積膨
張は余裕空間内において増加し、従って、バイブ破損を
もたらすことが防止される。かつこのような効果は、と
−トパイプを水平からやや傾斜させた時にも維持され、
従って凍結、の虞を防止しつつヒートパイプ設置の傾斜
角層を大きくすることができて、効率が良いという効果
をも有する。As mentioned above, the heat pipe of the solar heat collector according to the present invention has its tip bent upward so that when water for a heat medium is filled, an extra space is formed above the water level. Even if the water in the pipe freezes, its volumetric expansion will increase within the extra space, thus preventing damage to the vibrator. Moreover, this effect is maintained even when the toe pipe is tilted slightly from horizontal.
Therefore, it is possible to increase the slope angle layer of the heat pipe installation while preventing the risk of freezing, which also has the effect of improving efficiency.
なお当然のことではあるが、本発明は図示の各実施例に
のみ限定されるものではない。It should be noted that, as a matter of course, the present invention is not limited to the illustrated embodiments.
第１図は従来例の断面図でろる。第２図は本発明の第１
の実施例の側面図である。第３図は従来例と該実施例と
の歪測定結果を表すグラフである。
第４図及び第５図は各々本発明の他の実施例を示す側面
図である。第６図は従来例と第３図の実施例とについて
のヒートパイプ外形変化の測定結果２ ざ
を表すグラフである。第含図及び第孕図は、上記各側の
設置状態の一例を示す図である。FIG. 1 is a sectional view of a conventional example. Figure 2 shows the first embodiment of the present invention.
FIG. 3 is a side view of the embodiment of FIG. FIG. 3 is a graph showing the distortion measurement results of the conventional example and this embodiment. FIGS. 4 and 5 are side views showing other embodiments of the present invention. FIG. 6 is a graph showing two measurement results of changes in the external shape of the heat pipe for the conventional example and the embodiment shown in FIG. Figures 1 and 2 are diagrams showing an example of the installation state of each side.
Claims (1)
１において、該ヒートパイプ先端部を上方に曲は上げて
、ヒートパイプに熱媒体用の水を入れた場合その水位の
上に余裕空間が形成される構成としたことを特徴とする
太−熱集熱器のヒートパイプ。 ２、 ヒートパイプ先端における水位が、パイプ内径の
７０％以下になるように先端部□を曲げ上げて構成した
ことを特徴とする特許請求の範囲第１項に記載の太陽熱
集熱器のヒートパイプ。 ３、先端部を曲げ上げるために折曲げた核折曲部におけ
る水位が、パイプ内径の８５％以下になるように先端部
を曲げ上げて構成したことを特徴とする特許請求の範囲
第１項または第２瑣に記載の太陽熱集熱器のヒートパイ
プ。 ′ □[Claims] 1. In the heat-by 1 used in a solar heat collector that uses water as a heat medium, when the tip of the heat pipe is bent upward and water as a heat medium is poured into the heat pipe, A heat pipe of a thick heat collector characterized by having a configuration in which an extra space is formed above the water level. 2. The heat pipe of the solar heat collector according to claim 1, characterized in that the tip part □ is bent up so that the water level at the tip of the heat pipe is 70% or less of the inner diameter of the pipe. . 3. Claim 1, characterized in that the tip is bent up so that the water level at the core bent portion bent to raise the tip becomes 85% or less of the inner diameter of the pipe. Or the heat pipe of the solar heat collector described in 2nd item (d). ′ □
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57206104A JPS5997459A (en) | 1982-11-26 | 1982-11-26 | Heat pipe for solar heat collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57206104A JPS5997459A (en) | 1982-11-26 | 1982-11-26 | Heat pipe for solar heat collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5997459A true JPS5997459A (en) | 1984-06-05 |
| JPS6354981B2 JPS6354981B2 (en) | 1988-10-31 |
Family
ID=16517863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57206104A Granted JPS5997459A (en) | 1982-11-26 | 1982-11-26 | Heat pipe for solar heat collector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5997459A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7710531B2 (en) | 2005-02-15 | 2010-05-04 | Denso Corporation | Liquid crystal display apparatus |
| KR200453485Y1 (en) * | 2009-01-12 | 2011-05-09 | (주)그랜드솔라 | device for collecting solar energy of a manifold assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01296093A (en) * | 1988-05-25 | 1989-11-29 | Nippon Denso Co Ltd | Automotive radiator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5634056A (en) * | 1979-08-23 | 1981-04-06 | Sanyo Electric Co Ltd | Solar heat collector |
| JPS56114360U (en) * | 1980-01-31 | 1981-09-02 | ||
| JPS56155257U (en) * | 1980-04-18 | 1981-11-19 | ||
| JPS5754849U (en) * | 1980-09-11 | 1982-03-31 | ||
| JPS5754855U (en) * | 1980-09-12 | 1982-03-31 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5754849B2 (en) * | 1974-11-15 | 1982-11-20 | ||
| JPS5496003A (en) * | 1978-01-13 | 1979-07-30 | Nippon Telegr & Teleph Corp <Ntt> | Production of magnetic disc |
-
1982
- 1982-11-26 JP JP57206104A patent/JPS5997459A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5634056A (en) * | 1979-08-23 | 1981-04-06 | Sanyo Electric Co Ltd | Solar heat collector |
| JPS56114360U (en) * | 1980-01-31 | 1981-09-02 | ||
| JPS56155257U (en) * | 1980-04-18 | 1981-11-19 | ||
| JPS5754849U (en) * | 1980-09-11 | 1982-03-31 | ||
| JPS5754855U (en) * | 1980-09-12 | 1982-03-31 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7710531B2 (en) | 2005-02-15 | 2010-05-04 | Denso Corporation | Liquid crystal display apparatus |
| KR200453485Y1 (en) * | 2009-01-12 | 2011-05-09 | (주)그랜드솔라 | device for collecting solar energy of a manifold assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6354981B2 (en) | 1988-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4084578A (en) | Solar water heater of natural circulation type | |
| US5413091A (en) | Solar collector with freeze damage protection | |
| JP2013508661A (en) | Solar collector | |
| JP2005164132A (en) | Solar heat collector panel | |
| JPS5997459A (en) | Heat pipe for solar heat collector | |
| WO2011140688A1 (en) | Integrated flat-plate solar collector | |
| CN2527924Y (en) | All glass solar vacuum heat-collecting tube with heat-conducting strip | |
| US4440156A (en) | Solar heat collector | |
| JPS60108643A (en) | Solar heat collector | |
| JPH09101093A (en) | Heat transfer pipe with inner surface groove | |
| JPS5828901B2 (en) | solar collector | |
| JPS5816107B2 (en) | Flat solar heat exchanger | |
| WO2007135419A2 (en) | Solar collector | |
| JPS608276Y2 (en) | solar heat collector | |
| JPS5941483Y2 (en) | solar collector | |
| JP3236891B2 (en) | Solar heat collecting device and its control system | |
| CN219600638U (en) | Corrosion-resistant heat-conducting plate | |
| JPS6225637Y2 (en) | ||
| AU661494B2 (en) | Solar collector | |
| CN201621874U (en) | Solar water heater heat exchanger device | |
| KR200283336Y1 (en) | solar collecting pipe structure formed in a vacuum pipe of solar collector | |
| JPS56146989A (en) | Heat pipe | |
| JPS63718B2 (en) | ||
| JPS5844284Y2 (en) | Vacuum double tube solar collector tube | |
| KR200374223Y1 (en) | Thermal conduction pipe |