JPS5869361A - Solar heat collector - Google Patents
Solar heat collectorInfo
- Publication number
- JPS5869361A JPS5869361A JP56169329A JP16932981A JPS5869361A JP S5869361 A JPS5869361 A JP S5869361A JP 56169329 A JP56169329 A JP 56169329A JP 16932981 A JP16932981 A JP 16932981A JP S5869361 A JPS5869361 A JP S5869361A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heat pipe
- pipe
- section
- cylinder
- 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
- F24S40/50—Preventing overheating or overpressure
- F24S40/55—Arrangements for cooling, e.g. by using external heat dissipating means or internal cooling circuits
-
- 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】
この発明は真空ガラス管内に太陽熱により加熱される集
熱管を配設した太陽熱集熱器に係り、とくに過熱防止構
造に関する◎
作動液蒸気の凝縮熱を利用して水を加熱するたメニ、ヒ
ートパイプ等の集熱管を真空ガラス管内に配設した太陽
熱集熱器としては第１ＦＩＡ、第２図に示す構造のもの
が知られている。図に右いて、１は透光性の真空ガラス
管で、一端は閉基され、他端には封止金具２が設けられ
ておりこの個所をヒートパイプ３の一方側か軸封貫通し
て突出している◎ヒートパイプ３の閉塞された他方側は
サポート４にて真空ガラス管１に支持されている０この
真９ガラス管１の閉塞側は端部支え金６を介して架台７
に取り付は固定される。また真空ガラス管ｌのヒートパ
イプの突出側はケース側ブツシュ８を介してケース９に
埴り付けられ、このケース９は架台７に固定される。ケ
ース９内には、前述した突出せると−トバイプ３が収納
され、このヒートパイプ３は複数本（図面では４本］が
放熱筒ｌＯｋ連通して接続される。そして放熱筒１０の
高さ位置はヒートパイプ３の位置より上位にあるように
構成される０この放熱筒１０の内部には熱媒管１１が収
納され、その両端は放熱筒１０の両端面を軸封貫通して
突出している０放熱筒１０の内部にある熱媒管１１の外
周部には放熱フィン１２が設けである＠ヒートパイプ３
内には作動液１３が封入され、熱媒管１１の内部は熱媒
１４が流通す熟
る０１５は放熱［１０を熱絶縁するｅｆｒ麹材、１６は
真空ガラス管より突出したヒートパイプ３を熱絶縁する
断熱材である０この太陽熱集熱器において、真空ガラス
管１を透過した太陽光の照射を受けてヒートパイプ３が
受熱すると、内部の作動液１３が加熱され、その一部は
蒸発する◎この蒸発気体１７は放熱筒１０に移動し、こ
こで蒸発潜熱を放出し、熱媒−＃１１内の熱媒１４を加
熱する。[Detailed Description of the Invention] The present invention relates to a solar heat collector in which a heat collecting tube heated by solar heat is disposed inside a vacuum glass tube, and particularly relates to an overheating prevention structure. As a solar heat collector in which a heat collector tube such as a heating tube or a heat pipe is disposed inside a vacuum glass tube, a structure shown in FIG. 2 of FIG. 1 is known. On the right side of the figure, 1 is a translucent vacuum glass tube, one end of which is closed, and the other end is provided with a sealing fitting 2, which is passed through the shaft seal on one side of the heat pipe 3. ◎The other closed side of the heat pipe 3 is supported on the vacuum glass tube 1 by the support 4.The closed side of the true 9 glass tube 1 is connected to the frame 7 via the end support 6.
The installation is fixed. Further, the protruding side of the heat pipe of the vacuum glass tube l is attached to a case 9 via a case-side bushing 8, and this case 9 is fixed to the pedestal 7. Inside the case 9, the above-mentioned protruding heat pipe 3 is housed, and a plurality of heat pipes 3 (four in the drawing) are connected to each other in communication with the heat dissipation tube lOk.The height position of the heat dissipation tube 10 is is configured to be located above the position of the heat pipe 3. A heat medium tube 11 is housed inside the heat dissipation tube 10, and both ends of the heat transfer tube 11 protrude through the shaft seals on both end surfaces of the heat dissipation tube 10. 0 @ Heat pipe 3 where radiation fins 12 are provided on the outer periphery of the heat medium pipe 11 inside the heat radiation tube 10
A working fluid 13 is sealed inside, and a heat medium 14 flows inside the heat medium pipe 11. 015 is an EFR koji material that thermally insulates the heat dissipation [10], and 16 is a heat pipe 3 protruding from the vacuum glass tube. In this solar heat collector, which is a heat insulating material, when the heat pipe 3 receives heat from sunlight that has passed through the vacuum glass tube 1, the internal working fluid 13 is heated, and some of it evaporates. This evaporated gas 17 moves to the heat sink 10, where it releases latent heat of vaporization and heats the heat medium 14 in the heat medium #11.
これにより凝縮して液化された作動液は重力により落下
し、放熱筒１０部分よりヒートパイプ３内に環流され、
再び太陽光により加熱される。このように作動液の蒸発
−凝縮サイクルを操り返し熱媒を刀口熱する〇
かかる＃ ｆｆｉの太陽熱集熱器においては、熱媒管１
１に熱媒を供給するポンプ等の故障により熱媒ｒ
管柑に熱媒が流通しないで、し力）も真空ガラス管１内
のヒートパイプ３が太陽熱を受熱しているとき、いわゆ
る空入き状態においては、放熱筒ｌＯ内ｌこて熱媒管１
１に熱媒１４が流通していないことから作動液蒸気の凝
縮、それに伴なう放熱が行なわれないので、ヒートパイ
プ３内部の作動液が蒸発しつづけ、これによりヒートパ
イプが過熱され、熱媒１４の沸騰を生じたり、また作動
液１３が分解され非凝縮性ガスを生じて性能低下を起こ
す欠点があった。As a result, the condensed and liquefied working fluid falls due to gravity and is circulated into the heat pipe 3 from the heat sink 10 section.
It is heated again by sunlight. In this way, the evaporation-condensation cycle of the working fluid is manipulated to heat the heat medium.
When the heat pipe 3 inside the vacuum glass tube 1 receives solar heat, the heat medium does not flow through the tube due to a malfunction of the pump, etc. that supplies the heat medium to the vacuum glass tube 1. In the state of
Since the heat medium 14 is not flowing through the heat pipe 1, the condensation of the working fluid vapor and the accompanying heat dissipation are not performed, so the working fluid inside the heat pipe 3 continues to evaporate, which overheats the heat pipe and dissipates the heat. There are disadvantages in that the medium 14 boils and the working fluid 13 is decomposed to produce non-condensable gas, resulting in a decrease in performance.
本発明の目的は、上述した従来装置の欠点を除去して、
空ｖＩｋ状態においても上述したようなヒートパイプ内
の異常温に上昇によるヒートパイプの過熱を生じないよ
うな構造の太陽熱集熱器を提供すること４こある０この
目的は本発明によれば、非凝縮ガスが常温大気下で封゛
入され少なくとも加熱部、冷却部で構成された制御形ヒ
ートパイプを有し、この制御形ヒートパイプの加熱部を
前記放熱湾内部に収納し、冷却部を放熱筒外部に設置す
ることによって達成される◎
次にこの発明の実施例を図面に基づいて説明する・第３
図は本発明の一実施例である太陽熱集熱器の側面断面図
、Ｍ４図は第３図におけるＹ−Ｙ縦断面図で、８１図、
第２図に示すものと同一のものについては同一符号を付
しである０第３図。The object of the present invention is to eliminate the above-mentioned drawbacks of the conventional device,
According to the present invention, it is an object of the present invention to provide a solar heat collector having a structure that does not cause overheating of the heat pipe due to an abnormal temperature rise in the heat pipe as described above even in an empty vIk state. It has a controlled heat pipe in which non-condensable gas is sealed in the atmosphere at room temperature and is composed of at least a heating section and a cooling section, the heating section of the controlled heat pipe is housed inside the radiation bay, and the cooling section is This is achieved by installing it outside the heat sink.◎ Next, an embodiment of this invention will be explained based on the drawings.
The figure is a side cross-sectional view of a solar heat collector which is an embodiment of the present invention, M4 figure is a Y-Y longitudinal cross-sectional view in Figure 3, Figure 81,
3. Components that are the same as those shown in FIG. 2 are designated by the same reference numerals.
第４図において第１図、第２図と最も異なる点は、制御
形ヒートパイプを設置、特に制御形ヒートノ（イブとし
て作動液と共に非凝縮性ガスを常温大気圧下で封入した
可変コンダクタンス形ヒートノくイブを設置したもので
あるＯすなわちｏＪｉコンダクタンス形ヒートパイプ１
８の加熱部１８１を放熱筒１０内部に熱媒管１１と同様
に収納し鴫外周に放熱フィン１８２を有する冷却部１８
３を放熱筒１０外部に設置し、両者を中間部１８４にて
連通接続したものである０この０Ｔ変コンダクタンス形
ヒートパイプ１８の空間には非凝縮性ガスたとえばちつ
素ガス１９が封入されており、加熱部１８１番こは作動
液１３Ａが溜っているｏ２０は冷却部１８３を保睦する
カバーで、たとえば金網、あるいは通気口を有する構造
など通気性を良くするようにしている。The most different point in Fig. 4 from Figs. 1 and 2 is that a controlled heat pipe is installed, especially a variable conductance heat pipe in which a non-condensable gas is sealed together with a working fluid as an eve at room temperature and atmospheric pressure. O or oJi conductance type heat pipe 1
8 heating section 181 is housed inside the heat dissipation tube 10 in the same manner as the heat medium pipe 11, and the cooling section 18 has heat dissipation fins 182 on the outer periphery of the cooling section 18.
A non-condensable gas such as nitrogen gas 19 is filled in the space of this 0T variable conductance type heat pipe 18. The heating part 181 and o20, in which the working fluid 13A is stored, are covers that protect the cooling part 183, and are made of wire mesh or a structure with ventilation holes, for example, to improve ventilation.
このような可変コンダクタンス形ヒ、＝ドパイブ１８を
設置した太陽熱集熱器において、正常運転時すなわち熱
媒管１１に熱媒１４が流通している時太陽熱を受熱した
ヒートパイプ３内部の作動液１３が加熱され蒸発した気
体は放熱筒１６内で蒸発潜熱を放出し、熱媒管１１内の
熱媒１４を加熱し、熱交換が行なわれるが、同時に可変
コンダクタンス形ヒートパイプ１８の加熱部１８１も加
熱される。そしで受熱した加熱部１８１内部の作動液１
３Ａも加熱され蒸発するが、この蒸気流により可変コン
ダクタレス形ヒートパイプ１８の空間に封入しである非
凝縮ガスが冷却部１８３に押されて停留するので蒸気は
凝縮されずヒートパイプ１８による冷却は行なわれない
。よって放熱８１０内の蒸発着熱は可変コンダクタレス
形ヒートパイプ１８によっては放熱されないので放熱筒
１ｏ内でのヒートパイプ３の作動液１３は熱ロスなく蒸
発−凝縮が行なわれる０次に空焚き状態になったときは
ヒートパイプ３内部の作動液１３が蒸発しつづけヒート
パイプ３内の温度が異常に上昇し、それに伴って可変コ
ンダクタンス形ヒートパイプ１８の可熱部１８１も高温
となり内部の作動液１３Ａが蒸発しつづけ蒸気圧が高く
なるにつれて非凝縮性ガスを冷却部１８３へ押し込み蒸
気が冷却部１８３に達する。これにより蒸気は冷却部１
８３においてＩｌｌ＠シ液化されて加熱部１８１に重力
で落下する。これの繰返しで放熱筒ｌＯ内部は所定の温
度に維持され前述した異常温度上昇は抑止される。In a solar heat collector equipped with such a variable conductance type pipe 18, during normal operation, that is, when the heat medium 14 is flowing through the heat medium pipe 11, the working fluid 13 inside the heat pipe 3 that receives solar heat The heated and evaporated gas releases latent heat of vaporization within the heat radiation tube 16, heating the heat medium 14 within the heat medium pipe 11, and heat exchange is performed.At the same time, the heating section 181 of the variable conductance heat pipe 18 also heated. The working fluid 1 inside the heating section 181 receives heat from the
3A is also heated and evaporated, but this vapor flow pushes the non-condensable gas sealed in the space of the variable conductorless heat pipe 18 into the cooling section 183 and stagnates, so the vapor is not condensed and is cooled by the heat pipe 18. is not carried out. Therefore, the heat of evaporation in the heat radiation 810 is not radiated by the variable conductorless heat pipe 18, so the working fluid 13 of the heat pipe 3 in the heat radiation cylinder 1o is in a zero-order dry firing state where evaporation and condensation are performed without heat loss. When this occurs, the working fluid 13 inside the heat pipe 3 continues to evaporate, causing the temperature inside the heat pipe 3 to rise abnormally, and the hot part 181 of the variable conductance heat pipe 18 also becomes high in temperature, causing the working fluid inside to evaporate. As 13A continues to evaporate and its vapor pressure increases, non-condensable gas is forced into the cooling section 183 and the steam reaches the cooling section 183. As a result, the steam is transferred to the cooling section 1.
At 83, the liquid is liquefied and falls to the heating section 181 by gravity. By repeating this, the inside of the heat sink lO is maintained at a predetermined temperature, and the above-mentioned abnormal temperature rise is suppressed.
上述した本発明による太陽熱集熱器は放熱筒内に制御形
ヒートパイプ特に可変コンダクタンス形ヒートパイプを
設置し、放熱筒内部が異常高温となったときに可変コン
ダクタンス形ヒートパイプを作用させるように構成した
ので、空焚き状態においてもヒートパイプ内の異常温液
上昇による放熱筒内の過熱を防止できるという利点を有
する０The solar heat collector according to the present invention described above is configured such that a controlled heat pipe, particularly a variable conductance heat pipe, is installed inside the heat radiation tube, and the variable conductance heat pipe is activated when the inside of the heat radiation tube becomes abnormally high temperature. Therefore, it has the advantage of being able to prevent overheating in the heat dissipation cylinder due to the rise of abnormally hot liquid in the heat pipe even in the dry firing state.
第１図は従来装置の太陽熱集熱４の側面断面図、＠２図
は５ｇ１図におけるＸ−Ｘ断面図、第３図は本発明の一
実施例である太陽熱集熱器のｌｌｌｌｒｊＩＪＷｆｒ面
図、第４図は第３図におけるＹ−Ｙｉ面図である０１：
真空ガラス管、３：ヒートパイプ、１０：放熱筒、１１
：熱媒管、１３：作動液、１８：制御形ヒートパイプ（
可変コンダクタンス形ヒートパイプ）、１８１：加熱部
、１８３：冷却部、１９：非凝舗性ガスロFig. 1 is a side sectional view of a solar heat collector 4 of a conventional device, @2 is a XX sectional view in Fig. 5g1, and Fig. 3 is a lllrjIJWfr side view of a solar heat collector according to an embodiment of the present invention. Figure 4 is a Y-Yi plane view in Figure 3 01:
Vacuum glass tube, 3: Heat pipe, 10: Heat sink, 11
: Heat medium pipe, 13: Working fluid, 18: Controlled heat pipe (
(variable conductance heat pipe), 181: heating section, 183: cooling section, 19: non-condensing gas tank
Claims (1)
ス管外に突出したヒートパイプと、このヒートパイプに
接続され熱媒管の外周を包囲する放大気下で封入され少
なくとも加熱部冷却部で構成された制御形ヒートパイプ
を有し、この制御形ヒートパイプの加熱部を前記放熱筒
内部に収納し、冷却部を放熱筒外部に設置したことを特
徴とする太陽熱集熱器。1) A heat pipe arranged in a transparent vacuum glass tube with one end protruding outside the vacuum glass tube, and a heat pipe connected to the heat pipe and enclosed in a discharge atmosphere surrounding the outer periphery of the heat medium tube to cool at least the heating part. What is claimed is: 1. A solar heat collector comprising: a controlled heat pipe comprising a controlled heat pipe, a heating section of the controlled heat pipe being housed inside the heat dissipation tube, and a cooling section disposed outside the heat dissipation tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56169329A JPS5869361A (en) | 1981-10-22 | 1981-10-22 | Solar heat collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56169329A JPS5869361A (en) | 1981-10-22 | 1981-10-22 | Solar heat collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5869361A true JPS5869361A (en) | 1983-04-25 |
| JPS6350625B2 JPS6350625B2 (en) | 1988-10-11 |
Family
ID=15884525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56169329A Granted JPS5869361A (en) | 1981-10-22 | 1981-10-22 | Solar heat collector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5869361A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007043766A1 (en) * | 2005-10-08 | 2007-04-19 | Korea Institute Of Energy Research | Evacuated tubular solar collector with eccentric type manifold flange |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0847867A (en) * | 1994-08-01 | 1996-02-20 | Matsushita Refrig Co Ltd | Bolt fastening device |
| KR101910201B1 (en) * | 2010-01-18 | 2018-12-19 | 티지 엘티디. | System and method for temperature limiting in a sealed solar energy collector |
| EP2676080B1 (en) * | 2011-02-15 | 2019-03-27 | Tigi Ltd. | Overheat protection mechanism for solar thermal collector |
-
1981
- 1981-10-22 JP JP56169329A patent/JPS5869361A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007043766A1 (en) * | 2005-10-08 | 2007-04-19 | Korea Institute Of Energy Research | Evacuated tubular solar collector with eccentric type manifold flange |
| KR100712012B1 (en) | 2005-10-08 | 2007-04-30 | 한국에너지기술연구원 | Evacuated tubular solar collector with eccentric type manifold flange |
| US8113192B2 (en) | 2005-10-08 | 2012-02-14 | Korea Institute Of Energy Research | Evacuated tubular solar collector with eccentric type manifold flange |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6350625B2 (en) | 1988-10-11 |
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