JPH10185331A - Vacuum type solar heat collector - Google Patents
Vacuum type solar heat collectorInfo
- Publication number
- JPH10185331A JPH10185331A JP8355999A JP35599996A JPH10185331A JP H10185331 A JPH10185331 A JP H10185331A JP 8355999 A JP8355999 A JP 8355999A JP 35599996 A JP35599996 A JP 35599996A JP H10185331 A JPH10185331 A JP H10185331A
- Authority
- JP
- Japan
- Prior art keywords
- heat collector
- water supply
- heat
- return port
- solar heat
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000011521 glass Substances 0.000 claims abstract description 40
- 238000000638 solvent extraction Methods 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 47
- 229910052751 metal Inorganic materials 0.000 claims description 47
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 10
- 238000005338 heat storage Methods 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 238000005192 partition Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005219 brazing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 241000270730 Alligator mississippiensis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910000833 kovar Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
- F24S10/45—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
-
- 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)
- Photovoltaic Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、内部を真空に保持した
ガラス容器内に、扁平形状を有する金属製集熱体を配設
した真空式太陽熱集熱器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum solar heat collector in which a flat metal heat collector is disposed in a glass container whose inside is kept in a vacuum.
【０００２】[0002]
【従来の技術】従来より一般に用いられている真空式太
陽熱集熱器は、内部を真空に保持した透明ガラス容器内
に集熱板を取り付けた集熱パイプを配設した構造になっ
ており、集熱板の中央部に凹形のへこみを設け、このへ
こみに水等の熱媒体の通路となる集熱パイプが嵌め込ま
れて取り付けられている。2. Description of the Related Art Conventionally, a vacuum solar heat collector generally used has a structure in which a heat collecting pipe having a heat collecting plate attached is disposed in a transparent glass container whose inside is kept in a vacuum. A concave dent is provided in the center of the heat collecting plate, and a heat collecting pipe serving as a passage for a heat medium such as water is fitted into the dent and attached.
【０００３】[0003]
【発明が解決しようとする課題】上記のような構造を有
する真空式太陽熱集熱器の場合、集熱板で受けた太陽熱
を集熱パイプ内を流通する水等の熱媒体に熱伝導させる
ことによって温めるようにしているが、集熱板の凹形の
へこみに集熱パイプを嵌め込んで取り付けても、両者の
間には、必ず若干の隙間が形成され、このような隙間が
集熱板から熱媒体への熱伝導を損なわせ、集熱効率を低
下させる原因の一つとなっている。In the case of a vacuum solar heat collector having the above structure, the solar heat received by the heat collecting plate is transferred to a heat medium such as water flowing through the heat collecting pipe. However, even if the heat collecting pipe is fitted into the concave dent of the heat collecting plate, a slight gap is always formed between them, and such a gap is formed by the heat collecting plate. This is one of the causes of impairing the heat conduction from the air to the heat medium and lowering the heat collection efficiency.
【０００４】また集熱パイプが、ガラス容器内を真っす
ぐ貫通して配置されているため、集熱パイプと集熱板と
の密着面積、すなわち熱伝導面積が小さく、集熱板から
の熱を充分に熱媒体に伝導しきれないという欠点もあっ
た。[0004] Further, since the heat collecting pipe is disposed so as to penetrate straight through the glass container, the contact area between the heat collecting pipe and the heat collecting plate, that is, the heat conduction area is small, and the heat from the heat collecting plate is sufficiently supplied. However, there is also a drawback that the heat medium cannot be completely conducted.
【０００５】本発明は、上記事情に鑑みなされたもので
あり、その目的とするところは、太陽熱を効率良く熱媒
体に伝導することが可能な真空式太陽熱集熱器を提供す
ることである。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vacuum solar heat collector capable of efficiently conducting solar heat to a heat medium.
【０００６】[0006]
【課題を解決するための手段】本発明の真空式太陽熱集
熱器は、一端が密封され、他端が小口径に絞られて開口
し、内部が真空に保持された透明な長尺円筒状のガラス
容器と、一端が密封され、他端に熱媒体を内部に入れる
ための取り込み口と、熱媒体を外部に取り出すための戻
し口が形成され、取り込み口と戻し口を隔て、内部を密
封端付近まで仕切ることによって、取り込み口に続く給
水路と、戻し口に続く送水路が形成され、外表面に選択
吸収膜が被着された扁平状の金属製集熱体と、ガラス容
器内に金属製集熱体を固定支持するための支持具を備え
てなることを特徴とする。SUMMARY OF THE INVENTION A vacuum solar heat collector according to the present invention has a transparent long cylindrical shape, one end of which is sealed, the other end of which is narrowed and opened, and the inside of which is held in a vacuum. The glass container, one end is sealed, the other end is formed with an inlet for taking the heat medium inside, and a return port for taking out the heat medium to the outside is formed. By partitioning to the vicinity of the end, a water supply channel following the intake port and a water supply channel following the return port are formed, and a flat metal heat collector with a selective absorption film attached to the outer surface, and a glass container It is characterized by comprising a support for fixing and supporting the metal heat collector.
【０００７】[0007]
【作用】本発明において、ガラス容器内に配設された扁
平形状の金属製集熱体は、その一端に、熱媒体を内部に
入れるための取り込み口と、熱媒体を外部に取り出すた
めの戻し口が形成され、取り込み口と戻し口を隔て、内
部を密封端付近まで仕切ることによって、取り込み口に
続く給水路と、戻し口に続く送水路が形成されている。According to the present invention, the flat metal heat collector disposed in the glass container has, at one end thereof, an inlet for introducing the heat medium inside, and a return hole for extracting the heat medium to the outside. A mouth is formed, and a water supply channel following the intake port and a water supply channel following the return port are formed by partitioning the inside to the vicinity of the sealed end, separating the intake port and the return port.
【０００８】このように本発明における金属製集熱体
は、太陽熱の受熱面の大部分に熱媒体の流路が形成され
ているため、熱伝導面積が非常に大きくなる。従って金
属製集熱体の取り込み口から供給された水等の熱媒体
は、給水路から送水路を経て、戻し口から外部に取り出
されるまでの間に、ガラス容器を透過し、金属製集熱体
表面に被着された選択吸収膜を介して金属製集熱体に集
熱された太陽熱によって、効率良く温められる。しかも
金属製集熱体に集められた熱は、真空断熱作用により外
部への熱伝導による逃げも防止される。[0008] As described above, the metal heat collector of the present invention has a very large heat conduction area because the flow path of the heat medium is formed on most of the solar heat receiving surface. Therefore, the heat medium such as water supplied from the inlet of the metal heat collector passes through the glass container from the water supply channel through the water supply channel to the outside through the return port, and the metal heat collector. The solar cell is efficiently heated by solar heat collected by the metal heat collector through the selective absorption film attached to the body surface. Moreover, the heat collected by the metal heat collector is prevented from escaping due to heat conduction to the outside due to the vacuum heat insulating action.
【０００９】[0009]
【実施例】以下、本発明の真空式太陽熱集熱器を実施例
に基づいて詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a vacuum solar heat collector of the present invention will be described in detail based on embodiments.
【００１０】図１は、本発明の真空式太陽熱集熱器を示
す概略縦断面図、図２は、図１のＡ−Ａ線断面図、図３
は、本発明の真空式太陽熱集熱器を使用した給湯システ
ムを示す説明図である。FIG. 1 is a schematic longitudinal sectional view showing a vacuum solar heat collector of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG.
FIG. 2 is an explanatory view showing a hot water supply system using the vacuum solar heat collector of the present invention.
【００１１】図中、ガラス容器１０は、透明な長尺円筒
状のガラス管１０ａの両端に、略中央に開口部を有する
ガラスキャップ１０ｂと、排気管１０ｃが形成されたガ
ラスキャップ１０ｄが溶着されることによって形成され
ている。これらのガラスキャップ１０ｂ、１０ｄの材質
としては、ガラス管１０ａと同一、又はガラス管１０ａ
に支障なく溶着できるものであれば良い。In the figure, a glass container 10 is formed by welding a glass cap 10b having an opening at substantially the center and a glass cap 10d having an exhaust pipe 10c formed at both ends of a transparent long cylindrical glass tube 10a. It is formed by doing. The material of the glass caps 10b and 10d is the same as that of the glass tube 10a or the glass tube 10a.
Any material can be used as long as it can be welded without any trouble.
【００１２】ガラス容器１０内には、内部を水等の熱媒
体が通過する扁平形状の金属製集熱体１１が、複数本の
支持具１２を介して固定支持されており、金属製集熱体
１１の一端には、熱媒体を内部に入れるための取り込み
口１１ａと、熱媒体を外部に取り出すための戻し口１１
ｂが形成されている。また金属製集熱体１１には、取り
込み口１１ａと戻し口１１ｂを隔て、内部を密封端１１
ｃ付近まで仕切ることによって、取り込み口１１ａに続
く給水路１１ｄと、戻し口１１ｂに続く送水路１１ｅが
形成されている。In the glass container 10, a flat metal heat collector 11 through which a heat medium such as water passes is fixedly supported via a plurality of supports 12, and is made of a metal heat collector. At one end of the body 11, an intake port 11a for inserting the heat medium inside, and a return port 11 for taking out the heat medium outside.
b is formed. The metal heat collector 11 has a sealed end 11 with an intake port 11a and a return port 11b.
By partitioning to near c, a water supply channel 11d following the intake port 11a and a water supply channel 11e following the return port 11b are formed.
【００１３】この金属製集熱体１１は、通常、プレス成
形で所定形状の溝が形成された２枚の金属板（例えばス
テンレス板）から構成され、各金属板の溝が形成された
面を互いに重ね合わせ、取り込み口１１ａと戻し口１０
ｂを除く周囲１１ｆや、仕切りとなる箇所１１ｇを溶接
することによって作製されている。金属製集熱体１１の
外表面には、選択吸収膜（図示せず）が被着され、これ
によって太陽光の波長領域を効率良く吸収することが可
能である。The metal heat collector 11 is usually composed of two metal plates (for example, stainless steel plates) in which grooves of a predetermined shape are formed by press molding, and the surface of each metal plate on which the grooves are formed is formed. The intake port 11a and the return port 10 overlap each other.
It is produced by welding the periphery 11f excluding b and the portion 11g serving as a partition. A selective absorption film (not shown) is provided on the outer surface of the metal heat collector 11 so that the wavelength region of sunlight can be efficiently absorbed.
【００１４】尚、本発明においては、金属製集熱体１１
の送水路１１ｅ自体に、仕切り壁を設けることによっ
て、金属製集熱体１１の機械的強度を向上させることも
可能である。このような仕切り壁も、２枚の金属板をプ
レス成形する際に仕切り壁が形成されるように溝を形成
してから、仕切り壁となる箇所を溶接することによって
得ることができ、この場合、送水路１１ｅの流路は、複
数となる。In the present invention, the metal heat collector 11
By providing a partition wall in the water supply channel 11e itself, the mechanical strength of the metal heat collector 11 can be improved. Such a partition wall can also be obtained by forming a groove so that the partition wall is formed when two metal plates are press-formed, and then welding a portion serving as the partition wall. The flow path of the water supply channel 11e is plural.
【００１５】また金属製集熱体１１の材質としてステン
レスを採用した場合には、ガラス容器１０と良好に封着
できるガラス封着金具１３、例えばガラス容器１０がソ
ーダ石灰ガラスの場合は、４２％Ｎｉ−６％Ｃｒ鋼、硼
珪酸ガラスの場合は、コバール合金等で作った円筒状ガ
ラス封着金具１３の一端に、銅、あるいは銅と熱膨張係
数が略同じで、耐触性に優れた金属製の中継ぎ封着金具
１４を、ガラス封着金具１３の外周に被せてロウ付けし
たものを準備し、ガラス封着金具１３のもう一方の端部
をガラス容器１０の開口部に封着する。封着した部分
は、当然のことであるが、歪を十分に取り除く。そして
金属製集熱体１１の取り込み口１１ａと戻し口１１ｂ
に、２本の銅管１５、１６を差し込んでからロウ付け
し、これらの銅管１５、１６を中継ぎ封着金具１４に形
成された２つの孔部に挿入し、両者をロウ付けする。When stainless steel is used as the material of the metal heat collector 11, a glass sealing metal 13 which can be sealed well with the glass container 10, for example, 42% when the glass container 10 is soda-lime glass. In the case of Ni-6% Cr steel or borosilicate glass, one end of a cylindrical glass sealing member 13 made of a Kovar alloy or the like has copper or a thermal expansion coefficient substantially equal to that of copper and has excellent touch resistance. A metal splicing metal fitting 14 is prepared by brazing a metal sealing metal fitting 14 over the outer periphery of the glass sealing metal 13, and the other end of the glass sealing metal 13 is sealed to the opening of the glass container 10. . The sealed portion is, of course, sufficiently distorted. And the inlet 11a and the return port 11b of the metal heat collector 11
Then, two copper tubes 15 and 16 are inserted and brazed, and these copper tubes 15 and 16 are inserted into two holes formed in the joint sealing fitting 14 and brazed.
【００１６】支持具１２は、金属製集熱体１１をガラス
容器１０内に熱伸縮を許容しつつ、ガラス容器１０の内
表面に接触しないように固定支持するものであり、例え
ば弾性金属線条を適宜の形状に加工したものを使用すれ
ば良い。本発明における金属製集熱体１１は、扁平形状
を有し、内部を流通する熱媒体の流量も大量にはなら
ず、重量も比較的小さいため、これに用いる支持具１２
としては、従来の真空式太陽熱集熱器の集熱板に使用さ
れていた支持具の形態を若干修正したものであれば使用
可能である。The support 12 is for fixing and supporting the metal heat collector 11 in the glass container 10 so as to allow thermal expansion and contraction and not to contact the inner surface of the glass container 10. May be processed into an appropriate shape. Since the metal heat collector 11 of the present invention has a flat shape, the flow rate of the heat medium flowing therethrough does not become large, and the weight is relatively small.
Any type can be used as long as the shape of the support used for the heat collecting plate of the conventional vacuum solar heat collector is slightly modified.
【００１７】次に本発明の真空式太陽熱集熱器の製造方
法について説明する。Next, a method of manufacturing the vacuum solar heat collector of the present invention will be described.
【００１８】まずガラス管１０ａの一端に、予め開口部
にガラス封着金具１３と中継ぎ封着金具１４が取り付け
られたガラスキャップ１０ｂを溶着した後、その他方の
開口部から、予め取り込み口１１ａと戻し口１１ｂに銅
管１５、１６を取り付けた金属製集熱体１１を挿入し、
支持具１２によって金属製集熱体１１をガラス容器１０
内に固定支持させる。First, a glass cap 10b in which a glass sealing fitting 13 and a relay sealing fitting 14 are previously attached to an opening of one end of a glass tube 10a is welded. The metal heat collector 11 to which the copper tubes 15 and 16 are attached is inserted into the return port 11b,
The metal heat collector 11 is moved by the support 12 to the glass container 10.
It is fixed and supported inside.
【００１９】次でガラス管１０の開口部と、ガラスキャ
ップ１０ｄを溶着する。このガラスキャップ１０ｄに
は、排気管１０ｃが一体的に形成されている。このガラ
スキャップ１０ｄをガラス管１０ａに溶着し、またガラ
スキャップ１０ｂに取り付けられた中継ぎ封着金具１４
と、金属製集熱体１１に取り付けられた２本の銅管１
５、１６をロウ付けすることによって封止した後、排気
管１０ｃから内部を排気し、ガラス容器１０と金属製集
熱体１１との間の空間内を所定の真空度［例えば１０-4
Ｔｏｒｒ］となし、真空断熱層を形成してから排気管１
０ｃを閉じる。そして排気管１０ｃに保護用のゴム製キ
ャップ１７を取り付ける。Next, the opening of the glass tube 10 and the glass cap 10d are welded. An exhaust pipe 10c is formed integrally with the glass cap 10d. The glass cap 10d is welded to the glass tube 10a, and the relay sealing metal fitting 14 attached to the glass cap 10b.
And two copper tubes 1 attached to a metal heat collector 11
After sealing by brazing 5 and 16, the inside is evacuated from the exhaust pipe 10c, and the space between the glass container 10 and the metal heat collector 11 is evacuated to a predetermined degree of vacuum [for example, 10 -4.
Torr], and after forming a vacuum heat insulating layer, exhaust pipe 1
Close 0c. Then, a rubber cap 17 for protection is attached to the exhaust pipe 10c.
【００２０】尚、金属製集熱体１１には、バリウム等の
ゲーター材料を収納させたゲッターを取り付けても良
い。この場合には、ゲッター材料を高周波加熱装置によ
り真空式太陽熱集熱器の外部から加熱し、ゲッター材料
を加熱蒸発させてガラス容器１０の内周面に金属膜面を
蒸着させることにより、真空式太陽熱集熱器の構成部材
からの放出ガスによって真空度が低下するのを防止する
ことができる。Incidentally, a getter containing a gator material such as barium may be attached to the metal heat collector 11. In this case, the getter material is heated from the outside of the vacuum solar heat collector by a high-frequency heating device, and the getter material is heated and evaporated to deposit a metal film surface on the inner peripheral surface of the glass container 10, so that the vacuum It is possible to prevent the degree of vacuum from being reduced by the gas released from the components of the solar heat collector.
【００２１】次に本発明の真空式太陽熱集熱器の３ユニ
ット１８を用い、熱媒体として水を使用して、これを温
める場合を例に採って説明する。Next, a case where the three units 18 of the vacuum solar heat collector of the present invention are used, water is used as a heat medium, and the water is heated will be described as an example.
【００２２】まず真空式太陽熱集熱器の４本を１ユニッ
トとし、これらの金属製集熱体１１の取り込み口１１ａ
と戻し口１１ｂが取り付けられた側が高くなるように配
置して、建物の屋根上や屋上等に据付設置する。この
時、太陽光からの入射エネルギーが大きくなるように、
金属製集熱体１１の設置角度を調整することが必要であ
る。First, four vacuum solar heat collectors are made into one unit, and the intakes 11a of these metal heat collectors 11 are formed.
And the return port 11b is installed so that the side to which the return port 11b is attached is higher, and is installed on the roof or the roof of a building. At this time, so that the incident energy from sunlight increases,
It is necessary to adjust the installation angle of the metal heat collector 11.
【００２３】そして各真空式太陽熱集熱器の集熱体１１
の取り込み口１１ａに取り付けられた銅管１５を給水側
ヘッダー管１９に並列に接続し、また戻し口１１ｂに取
り付けられた銅管１６を給湯側ヘッダー管２０に並列に
接続する。また図３中、左端に位置する真空式太陽熱集
熱器のユニットの給湯側ヘッダー管２０を、第１の送水
管２１を介して蓄熱槽２２に接続し、さらに右端に位置
する真空式太陽熱集熱器のユニットの給水側ヘッダー管
１９を、第２の送水管２３を介して蓄熱槽２２に接続す
る。The heat collector 11 of each vacuum solar heat collector
The copper pipe 15 attached to the water supply side header pipe 19 is connected in parallel with the water supply side header pipe 19, and the copper pipe 16 attached to the return port 11b is connected in parallel to the hot water supply side header pipe 20. In FIG. 3, the hot water supply side header pipe 20 of the vacuum solar heat collector unit located at the left end is connected to the heat storage tank 22 via the first water supply pipe 21, and further the vacuum solar heat collector located at the right end. The water supply side header pipe 19 of the heater unit is connected to the heat storage tank 22 via the second water supply pipe 23.
【００２４】蓄熱槽２２の内部には、湯温を上昇させる
ための熱交換器２４が取り付けられ、また第２の送水管
２３の途中には、真空式太陽熱集熱器や第１及び第２の
送水管２１、２３の水流路の空気抜きをしたり、水を補
給するためのリザーブタンク２５と、水を循環させるた
めの循環ポンプ２６が取り付けられている。また給水側
ヘッダー管１９、給湯側ヘッダー管２０、第１の送水管
２１及び第２の送水管２３には、冬期における凍結防止
の目的で断熱材（図示せず）を被覆することが望まし
い。A heat exchanger 24 for raising the temperature of hot water is mounted inside the heat storage tank 22. A vacuum solar heat collector and first and second heat collectors are provided in the middle of the second water pipe 23. A reserve tank 25 for removing air from the water flow paths of the water supply pipes 21 and 23 and replenishing water, and a circulation pump 26 for circulating water are attached. Further, it is desirable that the water supply side header pipe 19, the hot water supply side header pipe 20, the first water supply pipe 21 and the second water supply pipe 23 be coated with a heat insulating material (not shown) for the purpose of preventing freezing in winter.
【００２５】蓄熱槽２２には、内部の温水を給湯栓に送
るための給湯管２７と、水道水を取り入れるための給水
管２８が取り付けられており、真空式太陽熱集熱器で温
められた温水は、各金属製集熱体１１から戻し口１１ｂ
を経て給湯側ヘッダー管２０に入り、さらに第１の送水
管２１を通して蓄熱槽２２に送られ、熱交換器２４を通
って蓄熱槽２２の水を温める。そして台所や風呂の給湯
栓（図示せず）を開くと、蓄熱槽２２内の温水が給湯管
２７を介して取り出され、この取り出された温水と同じ
量の水が、給水管２８を経て蓄熱槽２２に供給される。The heat storage tank 22 is provided with a hot water supply pipe 27 for sending hot water therein to a hot water tap, and a water supply pipe 28 for taking in tap water, and is provided with hot water heated by a vacuum solar heat collector. Is a return port 11b from each metal heat collector 11
Then, the water enters the hot water supply side header pipe 20, is further sent to the heat storage tank 22 through the first water supply pipe 21, and passes through the heat exchanger 24 to warm the water in the heat storage tank 22. Then, when a hot water tap (not shown) of a kitchen or a bath is opened, hot water in the heat storage tank 22 is taken out through a hot water supply pipe 27, and the same amount of water as the taken out hot water is supplied through a water supply pipe 28. It is supplied to the tank 22.
【００２６】また蓄熱槽２２内の湯温が、真空式太陽熱
集熱器内の湯温より低くなった時には、循環ポンプ２６
が作動し、水を循環させ、蓄熱槽２２内の湯温を上昇さ
せるようになっている。When the hot water temperature in the heat storage tank 22 becomes lower than the hot water temperature in the vacuum solar heat collector, the circulation pump 26
Operates to circulate water and raise the temperature of hot water in the heat storage tank 22.
【００２７】尚、上記実施例では、熱媒体として水道水
を使用した例を挙げたが、本発明の真空式太陽熱集熱器
を寒冷地で利用する場合、各種配管の凍結防止が必要と
されるため、熱媒体としてプロピレングリコールを主成
分とする不凍液を使用することが望ましい。In the above embodiment, tap water is used as a heat medium. However, when the vacuum solar heat collector of the present invention is used in a cold region, it is necessary to prevent various pipes from freezing. Therefore, it is desirable to use an antifreeze containing propylene glycol as a main component as a heat medium.
【００２８】[0028]
【発明の効果】以上のように本発明の真空式太陽熱集熱
器によると、扁平状の金属製集熱体の大部分に熱媒体の
流路が形成され、伝熱面積が大きいため、太陽熱を効率
良く熱媒体に熱伝導することが可能である。As described above, according to the vacuum solar heat collector of the present invention, the flow path of the heat medium is formed in most of the flat metal heat collector, and the heat transfer area is large. Can be efficiently conducted to the heat medium.
【００２９】また本発明における金属製集熱体は、２枚
の金属板を所定形状の溝が形成されるようにプレス成形
した後、各金属板の溝が形成された面を互いに重ね合わ
せ、取り込み口と戻し口を除く周囲や、仕切りとなる箇
所を溶接すれば良いため、部品点数が少なくてすみ、イ
ニシャルコストを安価とすることができる。In the metal heat collector according to the present invention, two metal plates are press-formed so that grooves of a predetermined shape are formed, and the surfaces of the metal plates where the grooves are formed are overlapped with each other. It is sufficient to weld the surroundings except for the intake port and the return port, and the location serving as a partition, so that the number of parts can be reduced and the initial cost can be reduced.
【図１】本発明の真空式太陽熱集熱器を示す概略縦断面
図である。FIG. 1 is a schematic longitudinal sectional view showing a vacuum solar heat collector of the present invention.
【図２】図１のＡ−Ａ線断面図である。FIG. 2 is a sectional view taken along line AA of FIG.
【図３】本発明の真空式太陽熱集熱器を使用した給湯シ
ステムを示す説明図である。FIG. 3 is an explanatory view showing a hot water supply system using the vacuum solar heat collector of the present invention.
１０ ガラス容器 １１ 金属製集熱体 １１ａ 取り込み口 １１ｂ 戻し口 １１ｃ 密封端 １１ｄ 給水路 １１ｅ 送水路 １１ｇ 仕切り箇所 １２ 支持具 DESCRIPTION OF SYMBOLS 10 Glass container 11 Metal heat collector 11a Intake port 11b Return port 11c Sealed end 11d Water supply path 11e Water supply path 11g Partition location 12 Support
Claims (1)
て開口し、内部が真空に保持された透明な長尺円筒状の
ガラス容器と、一端が密封され、他端に熱媒体を内部に
入れるための取り込み口と、熱媒体を外部に取り出すた
めの戻し口が形成され、取り込み口と戻し口を隔て、内
部を密封端付近まで仕切ることによって、取り込み口に
続く給水路と、戻し口に続く送水路が形成され、外表面
に選択吸収膜が被着された扁平状の金属製集熱体と、ガ
ラス容器内に金属製集熱体を固定支持するための支持具
を備えてなることを特徴とする真空式太陽熱集熱器。1. A transparent long cylindrical glass container whose one end is sealed and the other end is narrowed and opened to a small diameter and whose inside is kept in a vacuum, one end is sealed, and the other end is a heat medium. And a return port for taking out the heat medium to the outside, and a water supply passage following the intake port by separating the intake port and the return port and partitioning the interior to near the sealed end, A water supply channel following the return port is formed, and a flat metal heat collector having a selective absorption film attached to the outer surface, and a support for fixing and supporting the metal heat collector in a glass container are provided. A vacuum solar heat collector, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8355999A JPH10185331A (en) | 1996-12-24 | 1996-12-24 | Vacuum type solar heat collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8355999A JPH10185331A (en) | 1996-12-24 | 1996-12-24 | Vacuum type solar heat collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10185331A true JPH10185331A (en) | 1998-07-14 |
Family
ID=18446815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8355999A Pending JPH10185331A (en) | 1996-12-24 | 1996-12-24 | Vacuum type solar heat collector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10185331A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009537985A (en) * | 2006-05-19 | 2009-10-29 | ソルインドラ，インコーポレーテッド | Hermetic non-planar solar cell |
| CN101865547A (en) * | 2010-06-23 | 2010-10-20 | 濮阳市帝濮石油科技发展有限公司 | Double-cabin type solar energy water heater |
-
1996
- 1996-12-24 JP JP8355999A patent/JPH10185331A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009537985A (en) * | 2006-05-19 | 2009-10-29 | ソルインドラ，インコーポレーテッド | Hermetic non-planar solar cell |
| JP2013243403A (en) * | 2006-05-19 | 2013-12-05 | Solyndra Inc | Hermetically sealed nonplanar solar cell |
| CN101865547A (en) * | 2010-06-23 | 2010-10-20 | 濮阳市帝濮石油科技发展有限公司 | Double-cabin type solar energy water heater |
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