JPS596213Y2 - solar heat collector tube - Google Patents
solar heat collector tubeInfo
- Publication number
- JPS596213Y2 JPS596213Y2 JP1979165119U JP16511979U JPS596213Y2 JP S596213 Y2 JPS596213 Y2 JP S596213Y2 JP 1979165119 U JP1979165119 U JP 1979165119U JP 16511979 U JP16511979 U JP 16511979U JP S596213 Y2 JPS596213 Y2 JP S596213Y2
- Authority
- JP
- Japan
- Prior art keywords
- glass tube
- metal
- heat collecting
- tube
- glass
- 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
- 229910052751 metal Inorganic materials 0.000 claims description 42
- 239000002184 metal Substances 0.000 claims description 42
- 239000011521 glass Substances 0.000 claims description 37
- 238000007789 sealing Methods 0.000 claims description 15
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000005388 borosilicate glass Substances 0.000 description 5
- 229910000833 kovar Inorganic materials 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000005361 soda-lime glass Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 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
-
- 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
- F24S40/80—Accommodating differential expansion of solar collector elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
- F24S2025/6012—Joining different materials
- F24S2025/6013—Joining glass with non-glass elements
-
- 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)
- Joining Of Glass To Other Materials (AREA)
- Photovoltaic Devices (AREA)
Description
【考案の詳細な説明】
本考案は、集熱板、集熱金属パイプなどを管内に密封し
た真空ガラス管式の太陽熱集熱管に関するものである。[Detailed Description of the Invention] The present invention relates to a vacuum glass tube type solar heat collecting tube in which a heat collecting plate, a heat collecting metal pipe, etc. are sealed inside the tube.
太陽熱集熱管は、ガラス管内を通常１０−４或いは１０
−５という高度の真空に保って、熱の逸散を防いでいる
。Solar heat collector tubes usually have a diameter of 10-4 or 10
It is kept at a high vacuum of -5 to prevent heat from escaping.
ガラス管内の真空が洩れたとき、伝導、対流による熱の
逸散は予想外に大きく、集熱効果は著しく低下する。When the vacuum inside the glass tube leaks, heat dissipation through conduction and convection is unexpectedly large, and the heat collection effect is significantly reduced.
従って、長期に亙る使用中に真空洩れが生ヒないように
、構造的にも、組み立て取り付け時にも十分な配慮が必
要である。Therefore, sufficient consideration must be taken both structurally and during assembly and installation to prevent vacuum leakage during long-term use.
このような太陽熱集熱管の集熱金属パイプは、通常、熱
伝導のよい安価な金属、例えば銅パイプが使用されてい
る。The heat collecting metal pipe of such a solar heat collecting tube is usually made of an inexpensive metal with good thermal conductivity, such as a copper pipe.
又、ガラス管にはソーダ・石灰ガラス或いは硼珪酸ガラ
スが用いられている。Also, soda-lime glass or borosilicate glass is used for the glass tube.
しかし、銅パイプを直接ソーダ・石灰ガラス或いは硼珪
酸ガラスに封着することはできない。However, copper pipes cannot be directly sealed to soda-lime glass or borosilicate glass.
ソーダ・石灰ガラスにはΦ４２６鋼（Ｎｉ ： ４２％
，Ｃｒ；６％ノニッケル・クロム鋼）、硼珪酸ガラスに
はコバールが融着に適しているので、一般に＋ ４２６
鋼、コバール等の封着用合金を介して銅パイプをガラス
管中に密封している。Φ426 steel (Ni: 42%) for soda/lime glass
, Cr; 6% non-nickel chromium steel), Kovar is suitable for fusion bonding with borosilicate glass, so generally +426
A copper pipe is sealed into a glass tube through a sealing alloy such as steel or Kovar.
しかし、＋４２６鋼やコバール等の封着用合金は耐蝕性
がステンレス鋼等に比較して劣るので、風雨に曝される
と腐蝕し、真空洩れの原因になっていた。However, since sealing alloys such as +426 steel and Kovar have inferior corrosion resistance compared to stainless steel and the like, they corrode when exposed to wind and rain, causing vacuum leaks.
本考案は上記の欠点を改良したものである。The present invention improves the above drawbacks.
本考案では４− ４２６鋼やコバール等の封着用合金を
耐蝕性の優れた金属で覆い、防蝕性に劣る封着用金属が
大気に接しない構造にしたものである。In the present invention, a sealing alloy such as 4-426 steel or Kovar is covered with a metal having excellent corrosion resistance, so that the sealing metal, which has poor corrosion resistance, does not come into contact with the atmosphere.
以下に、本考案について図面を参照して詳しく説明する
。The present invention will be described in detail below with reference to the drawings.
第１図は往復型集熱管を示す。Figure 1 shows a reciprocating heat collection tube.
往復型集熱管では、ガラス管１の一端１０は封じて、大
型の試験管のような形状になっており、通常、封じた部
分に排気管１１を設ける。In a reciprocating heat collecting tube, one end 10 of the glass tube 1 is sealed to have a shape similar to a large test tube, and an exhaust pipe 11 is usually provided in the sealed portion.
集熱流体を通す集熱金属パイプ２は、ガラス管１の開口
部から入り、ガラス管１内でＵ字状に折れ曲って同し開
口部から出る。A heat collecting metal pipe 2 through which a heat collecting fluid passes enters through an opening of the glass tube 1, is bent into a U-shape within the glass tube 1, and exits from the same opening.
金属ステム４の周縁部４′は、ガラス管１側に直角方向
に曲げて皿状にし、その内側に環状になった樋状部５が
設けてある。The peripheral edge 4' of the metal stem 4 is bent in a direction perpendicular to the glass tube 1 to form a dish shape, and an annular gutter-like part 5 is provided on the inside thereof.
樋状部５は、図に示すように、ガラス管１の開口端部１
′を受けるような形状になっている。As shown in the figure, the gutter-like portion 5 is located at the open end 1 of the glass tube 1.
It is shaped to receive '.
環状の樋状部５は封着用合金、即ち、ガラス管１がソー
ダ・石灰ガラスのときはΦ４２６鋼、ガラス管１が硼珪
酸ガラスのときはコバールで作り、金属ステム４は防蝕
性の優れた金属、例えば、ニッケル、ニッケル基合金、
ステンレス等で作る。The annular gutter-shaped portion 5 is made of a sealing alloy, that is, Φ426 steel when the glass tube 1 is made of soda-lime glass, and Kovar when the glass tube 1 is made of borosilicate glass, and the metal stem 4 is made of a material with excellent corrosion resistance. metals, such as nickel, nickel-based alloys,
Made of stainless steel etc.
樋状部５と金属ステム４との接合部６は気密に溶接する
。A joint 6 between the trough-like portion 5 and the metal stem 4 is welded airtightly.
金属ステム４の２つの孔７，７に第１図に示すように集
熱金属パイプ２を通し、金属パイプ２と孔７とは気密に
溶接する。As shown in FIG. 1, the heat collecting metal pipe 2 is passed through the two holes 7, 7 of the metal stem 4, and the metal pipe 2 and the hole 7 are welded airtightly.
金属パイプ２には集熱板３を取り付ける。A heat collecting plate 3 is attached to the metal pipe 2.
金属パイプ２を溶接した金属ステム４とガラス管１との
封着は、樋状部５が上向きになるようにして金属ステム
４を水平におき、橿状部５にフリットガラス８を充填し
、ガラス管１を垂直にして、その中に金属パイプ２及び
集熱板３を通し、ガラス管１の端部１′を樋状部５に挿
入して、ガラス管１と金属ステム４との位置関係を一定
に保持しながら加熱炉に通す。To seal the metal stem 4 to which the metal pipe 2 is welded and the glass tube 1, the metal stem 4 is placed horizontally with the gutter-shaped part 5 facing upward, and the rod-shaped part 5 is filled with frit glass 8. Hold the glass tube 1 vertically, pass the metal pipe 2 and the heat collecting plate 3 through it, and insert the end 1' of the glass tube 1 into the gutter-shaped part 5 to adjust the position of the glass tube 1 and the metal stem 4. Pass through the heating furnace while keeping the relationship constant.
加熱は金属ステム４付近のみにとどめる。Heating is limited to the vicinity of the metal stem 4 only.
加熱温度は通常、ガラス管１がソーダ・石灰ガラスの場
合は４５０℃前後、硼珪酸ガラスの場合は５００〜５５
０℃位である。The heating temperature is usually around 450°C if the glass tube 1 is made of soda/lime glass, and 500 to 55°C if it is made of borosilicate glass.
It is around 0℃.
封着後に排気管１１から排気し、ガラス管１内を高度の
真空にした後、排気管１１を封じて完或する。After sealing, the glass tube 1 is evacuated from the exhaust pipe 11 to create a high vacuum inside the glass tube 1, and then the exhaust pipe 11 is sealed to complete the process.
第２図は貫通型集熱管を示す。Figure 2 shows a through-type heat collecting pipe.
貫通型集熱管では、集熱金属パイプ２はガラス管１の一
方の端部から他方の端部へ貫通している。In the through-type heat collecting tube, the heat collecting metal pipe 2 penetrates the glass tube 1 from one end to the other end.
従ってガラス管１０両端部に金属ステム４を封着する。Therefore, the metal stem 4 is sealed to both ends of the glass tube 10.
金属ステム４及び樋状部５の機質及び構造は往復型と同
じであるが、集熱金属パイプ２を通す孔７は、金属ステ
ム４の中央部に１個だけ設ければよい。The nature and structure of the metal stem 4 and the gutter-like portion 5 are the same as those of the reciprocating type, but only one hole 7 through which the heat collecting metal pipe 2 passes needs to be provided in the center of the metal stem 4.
貫通型集熱管の製作は、先ず、ガラス管１の一方の端部
に金属ステム４′をフリット封着する。To manufacture the through-type heat collecting tube, first, a metal stem 4' is frit-sealed to one end of the glass tube 1.
封着は樋状部５が上向きになるように金属ステム４′を
水平におき、樋状部５の中にフリット８を充填し、その
中ヘガラス管１の端部を挿入して加熱封着する。For sealing, place the metal stem 4' horizontally so that the gutter-like part 5 faces upward, fill the frit 8 in the gutter-like part 5, insert the end of the glass tube 1 into it, and heat seal it. do.
次いで、ガラス管１の他の端部から熱板３を取を付けた
金属パイプ２を挿入し、金属ステム４′の孔７′から金
属パイプ２をガラス管１の外へ突出させる。Next, the metal pipe 2 with the hot plate 3 attached is inserted from the other end of the glass tube 1, and the metal pipe 2 is made to protrude outside the glass tube 1 through the hole 7' of the metal stem 4'.
次いで、他の金属ステム４を前記と同様に水平に置き、
樋状部５にフリットガラス８を充填する。Next, place the other metal stem 4 horizontally in the same manner as above,
The gutter-like portion 5 is filled with frit glass 8.
ステム４′を封着した端部を上にしてガラス管１を垂直
に立て、金属パイプ２をステム４の孔７に通しながらガ
ラス管１の端部を樋状部５に挿入して封着する。Stand the glass tube 1 vertically with the sealed end of the stem 4' facing up, and while passing the metal pipe 2 through the hole 7 of the stem 4, insert the end of the glass tube 1 into the gutter-shaped part 5 and seal it. do.
ステム４及び４′の孔７及び７′と金属パイプ２とはそ
れぞれ気密に溶接する。The holes 7 and 7' of the stems 4 and 4' and the metal pipe 2 are respectively hermetically welded.
封着完了後、排気管１１から排気する。After the sealing is completed, the air is exhausted from the exhaust pipe 11.
貫通型集熱管では、ガラス管１と集熱金属パイプ２との
熱膨張の差を吸収するために、集熱金属パイプ２にベロ
ーズ１２を設けるか、金属ステム４にベローズを設ける
。In the through-type heat collecting tube, in order to absorb the difference in thermal expansion between the glass tube 1 and the heat collecting metal pipe 2, a bellows 12 is provided on the heat collecting metal pipe 2, or a bellows is provided on the metal stem 4.
耐蝕性に優れた金属製の皿状ステムは、第３図に示すよ
うに、円板状部４ａと円筒状部４ｂとの２つの部分に戊
形し、その接合部４Ｃを溶接して皿状にしてもよい。As shown in Fig. 3, the dish-shaped stem made of metal with excellent corrosion resistance is shaped into two parts, a disc-shaped part 4a and a cylindrical part 4b, and the joint part 4C is welded to form the dish-shaped stem. It may be made into a shape.
以上のようにして完威した往復型及び貫通型太陽熱集熱
管は、封着用合金製の樋状部５の大気に触れる部分はす
べて耐蝕性の優れた金属かフリットガラスで被られてい
る。In the reciprocating type and through-type solar heat collector tubes that have been successfully completed as described above, all the parts of the gutter-shaped part 5 made of a sealing alloy that come into contact with the atmosphere are covered with metal or frit glass having excellent corrosion resistance.
従って、封着用合金が腐蝕されることなく、長期間の使
用にも封着金属の腐蝕に起因する真空洩れは生じない。Therefore, the sealing alloy is not corroded, and vacuum leakage due to corrosion of the sealing metal does not occur even after long-term use.
第１図は往復型集熱管の部分断面図、第２図は貫通型集
熱管の部分断面図、第３図は皿状ステムの一変形を示す
断面図である。
１；ガラス管、２；金属パイプ、３；集熱板、４；金属
ステム、５；溝部、８；フリットガラス。FIG. 1 is a partial cross-sectional view of a reciprocating heat collecting tube, FIG. 2 is a partial cross-sectional view of a through-type heat collecting tube, and FIG. 3 is a cross-sectional view showing one modification of the dish-shaped stem. 1: glass tube, 2: metal pipe, 3: heat collecting plate, 4: metal stem, 5: groove, 8: frit glass.
Claims (1)
リット封着ある封着用合金の封着部を環状の樋状に構威
し、その封着部の外周部を耐蝕性に優れた金属製の皿状
ステムで被い、封着用合金が大気に触れないようにした
真空ガラス管式太陽熱集熱管。In vacuum glass tube type solar collector tubes, the glass tube end and the frit-sealed sealing area of the sealing alloy are arranged in an annular gutter shape, and the outer periphery of the sealing area is made of metal with excellent corrosion resistance. A vacuum glass solar collector tube covered with a dish-shaped stem to prevent the sealing alloy from coming into contact with the atmosphere.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979165119U JPS596213Y2 (en) | 1979-11-29 | 1979-11-29 | solar heat collector tube |
| FR8022646A FR2470939A1 (en) | 1979-11-29 | 1980-10-23 | Solar energy connector using evacuated glass vessel - which contains heat absorbing plate welded to pipe through which heat transfer medium is circulated |
| DE19803044600 DE3044600A1 (en) | 1979-11-29 | 1980-11-27 | SOLAR COLLECTOR AND METHOD FOR THE PRODUCTION THEREOF |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979165119U JPS596213Y2 (en) | 1979-11-29 | 1979-11-29 | solar heat collector tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5682456U JPS5682456U (en) | 1981-07-03 |
| JPS596213Y2 true JPS596213Y2 (en) | 1984-02-25 |
Family
ID=15806268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979165119U Expired JPS596213Y2 (en) | 1979-11-29 | 1979-11-29 | solar heat collector tube |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS596213Y2 (en) |
| DE (1) | DE3044600A1 (en) |
| FR (1) | FR2470939A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1000179B (en) * | 1988-09-26 | 1992-01-20 | Dimos Magklaras | New vacuum tube with double walls made of metal-black nichel and glass (spatial technology vacuum) for solar collectors of vacuum tubes of open circuit or solar water heaters with vacuum tubes |
| DE10231467B4 (en) * | 2002-07-08 | 2004-05-27 | Schott Glas | Absorber tube for solar thermal applications |
| ES2361103B1 (en) | 2009-10-05 | 2012-03-23 | Abengoa Solar New Technologies, S.A. | MANUFACTURING METHOD OF A SOLAR ENERGY RECEIVER TUBE AND MANUFACTURED TUBE. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1946184A (en) * | 1930-07-03 | 1934-02-06 | Abbot Charles Creeley | Solar heater |
| US4133298A (en) * | 1975-09-26 | 1979-01-09 | Sanyo Electric Co., Ltd. | Solar heat collecting apparatus |
| DE2827082A1 (en) * | 1977-06-23 | 1979-03-01 | John Humphrey Millar | COLLECTOR FOR SOLAR ENERGY |
| GB2018973A (en) * | 1978-01-10 | 1979-10-24 | Bicc Ltd | Solar Heating Apparatus |
-
1979
- 1979-11-29 JP JP1979165119U patent/JPS596213Y2/en not_active Expired
-
1980
- 1980-10-23 FR FR8022646A patent/FR2470939A1/en not_active Withdrawn
- 1980-11-27 DE DE19803044600 patent/DE3044600A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2470939A1 (en) | 1981-06-12 |
| DE3044600A1 (en) | 1981-08-27 |
| JPS5682456U (en) | 1981-07-03 |
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