CA2063247A1 - Vacuum tube collector - Google Patents
Vacuum tube collectorInfo
- Publication number
- CA2063247A1 CA2063247A1 CA002063247A CA2063247A CA2063247A1 CA 2063247 A1 CA2063247 A1 CA 2063247A1 CA 002063247 A CA002063247 A CA 002063247A CA 2063247 A CA2063247 A CA 2063247A CA 2063247 A1 CA2063247 A1 CA 2063247A1
- Authority
- CA
- Canada
- Prior art keywords
- vacuum
- tube
- glass tube
- metal case
- tube collector
- 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.)
- Abandoned
Links
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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Thermal Insulation (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Measuring Fluid Pressure (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- External Artificial Organs (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to a vacuum tube collector with a glass tube which is hermetically sealed at at least one end by the thermo-compression process. In the glass tube (1) is a metal sleeve (2) containing a hydride material (3).
Description
~ 2063~7 VACUUM-TUBE COLLECTOR
The invention concerns a vacuum-tube collector with a glass tube that is sealed vacuum-tight by means of thermo-` 5 compression at least at one end.
The German Gebrauchsmuster G 8913387.0 discloses a vacuum-tube collector of which the glass tube is sealed vacuum tight by thermo-compression.
The object of the invention is to propose a vacuum-10tube collector inside of which a very low pressure may be maintained.
This problem is solved by the invention by a metal case containing a hydride material being located inside the ? glass tube.
15Hydrides evince the property to store, then release and again store gases, preferably hydrogen, under given ther-mal conditions. Hydrides therefore can assume the function of latent storage for gases (hydride storage).
Preferably the metal case is cold~tapered and bent Zoaround like a sausage casing or cold-shaped like a can and is open. Preferably this opening is made by leaving a gap at the metal case when being cold-shaped.
Preferably the metal case is mounted inside the glass tube at the absorber and opposite the scavenging aper-25ture. Most advantageously it will be mounted between the middle and the end of the absorber.
Preferably the vacuum-tube collector is fitted with measurement tubing directlY communicating with the vacuum and allowing indirect measurement of the vacuum level.
30Preferably the glass tube is sealed by thermo-com-pression.
In another and especially preferred embodiment mode, the glass tube is fitted with an optical vacuum-indicator making possible to directly infer the vacuum level.
.
.
.
~ 20~3247 When manufacturing the vacuum-tube collector, this collector is heated jointly with the metal case containing the hydride. During this heating, the hydrogen gas flowing out of the hydride flushes across the inside surfaces which thereby s are purified. Residual gases are removed.
Thereupon the tube is evacuated and sealed. However evacuation also can be achieved, following heating, in the absence of additional evacuation steps solely by means of the hydride storage (metal case with hydride) present in the glass tube. The hydride storage acts as an evacuation accessory in the sense of a gas scavenger. The partly desorbed hydride storage acts like a getter.
The vacuum level arising inside the tube following sealing is about 10-4 to 10-6 mbars. This level can be measured indirectly illustratively by the cited measurement tubes.
Conclusions regarding vacuum levels are possible by means of the cited vacuum indicators.
The invention is elucidated below in relation to the attached drawings.
Fig. 1 is a perspective of the vacuum-tube collector, Fig. 2 is a longitudinal section of the metal case, and Fig. 3 is a longitudinal section of another vacuum-tube collector.
2s The vacuum-tube collector shown in Fig. 1 comprises the glass tube 1 sealed by thermo-compression in vacuum-tight manner at least at one end. The glass tube 1 comprises the metal cap 6 at one end. The coaxial tube system 7 illustra-tively supplying water to the absorber 4 inside the glass tube 1 passes centrally through the metal cap 6. This metal cap 6 was joined to the glass tube 1 by thermo-compression.
The scavenging aperture 5 through which the evacua-tion tube 8 enters the inside of the glass tube 1 is located in this metal cap 6.
-~A:~' 2 0 6 3 2 1 7 The metal case 2 containing the hydride is inside this glass tube l. Inside the glass tube l, this metal case 2 is mounted to the absorber 4 opposite the scavenging aperture 5. Moreover the vacuum-tube collector may be fitted with P 5 measurement tubing directly communicating with the vacuum to indirectly measure the vacuum level. Again the glass tube l can be fitted with an optical vacuum indicator permitting direct inferences about the vacuum levels.
; Fig. 2 is a longitudinal section of the metal case 2. This metal case 2 contains the hydride 3. It is cold-tapered and bent around like the ends of a sausage casing, the slits 9 and lO being left open at the ends.
The hydride material 3 evinces the property of storing gases, preferably hydrogen, under specific thermal conditions, to release them and to store them again. When manufacturing the vacuum-tube collector shown in Fig. l, this collector is heated jointly with the metal case 2 containing the hydride 3. During this heating the hydrogen gas issuing from the hydride 3 flushes across the inside surfaces which it purifies. Residual gases are removed.
Thereupon the tube is evacuated by means of the evacuation tubing 8 and is sealed. However, following heating, , evacuation also can be achieved without additional evacuation steps solely by means of the hydride storage (metal case 2 with hydride material 3) present in the glass tube l. The hydride storage acts as an evacuation accessory in the sense of gas scavenging.
The vacuum-tube collector shown in longitudinal section in Fig. 3 comprises the glass tube l which is sealed vacuum-tight at least at one end by thermo-compression. The description of Fig. l concerning this seal in the form of the metal cap 6 applies here too. In addition, the metal cap 6 comprises the measurement tubing 14 because directly communi-cating with the vacuum.
.. .... . . , ~ . . - . ~ , . ~ -- . . .
-~
.:
~ Q '~ ~ 2 1 7 4 :
The absorber tube 11 is ~ounted inside this glass tube 1 and the coaxial-tube connection system 12 is located inside said tube 11.
The metal case 13 is affixed to the base of the absorber tube 11. This metal case 13 is can-shaped and con-tains the hydride.
: .
.. .
The invention concerns a vacuum-tube collector with a glass tube that is sealed vacuum-tight by means of thermo-` 5 compression at least at one end.
The German Gebrauchsmuster G 8913387.0 discloses a vacuum-tube collector of which the glass tube is sealed vacuum tight by thermo-compression.
The object of the invention is to propose a vacuum-10tube collector inside of which a very low pressure may be maintained.
This problem is solved by the invention by a metal case containing a hydride material being located inside the ? glass tube.
15Hydrides evince the property to store, then release and again store gases, preferably hydrogen, under given ther-mal conditions. Hydrides therefore can assume the function of latent storage for gases (hydride storage).
Preferably the metal case is cold~tapered and bent Zoaround like a sausage casing or cold-shaped like a can and is open. Preferably this opening is made by leaving a gap at the metal case when being cold-shaped.
Preferably the metal case is mounted inside the glass tube at the absorber and opposite the scavenging aper-25ture. Most advantageously it will be mounted between the middle and the end of the absorber.
Preferably the vacuum-tube collector is fitted with measurement tubing directlY communicating with the vacuum and allowing indirect measurement of the vacuum level.
30Preferably the glass tube is sealed by thermo-com-pression.
In another and especially preferred embodiment mode, the glass tube is fitted with an optical vacuum-indicator making possible to directly infer the vacuum level.
.
.
.
~ 20~3247 When manufacturing the vacuum-tube collector, this collector is heated jointly with the metal case containing the hydride. During this heating, the hydrogen gas flowing out of the hydride flushes across the inside surfaces which thereby s are purified. Residual gases are removed.
Thereupon the tube is evacuated and sealed. However evacuation also can be achieved, following heating, in the absence of additional evacuation steps solely by means of the hydride storage (metal case with hydride) present in the glass tube. The hydride storage acts as an evacuation accessory in the sense of a gas scavenger. The partly desorbed hydride storage acts like a getter.
The vacuum level arising inside the tube following sealing is about 10-4 to 10-6 mbars. This level can be measured indirectly illustratively by the cited measurement tubes.
Conclusions regarding vacuum levels are possible by means of the cited vacuum indicators.
The invention is elucidated below in relation to the attached drawings.
Fig. 1 is a perspective of the vacuum-tube collector, Fig. 2 is a longitudinal section of the metal case, and Fig. 3 is a longitudinal section of another vacuum-tube collector.
2s The vacuum-tube collector shown in Fig. 1 comprises the glass tube 1 sealed by thermo-compression in vacuum-tight manner at least at one end. The glass tube 1 comprises the metal cap 6 at one end. The coaxial tube system 7 illustra-tively supplying water to the absorber 4 inside the glass tube 1 passes centrally through the metal cap 6. This metal cap 6 was joined to the glass tube 1 by thermo-compression.
The scavenging aperture 5 through which the evacua-tion tube 8 enters the inside of the glass tube 1 is located in this metal cap 6.
-~A:~' 2 0 6 3 2 1 7 The metal case 2 containing the hydride is inside this glass tube l. Inside the glass tube l, this metal case 2 is mounted to the absorber 4 opposite the scavenging aperture 5. Moreover the vacuum-tube collector may be fitted with P 5 measurement tubing directly communicating with the vacuum to indirectly measure the vacuum level. Again the glass tube l can be fitted with an optical vacuum indicator permitting direct inferences about the vacuum levels.
; Fig. 2 is a longitudinal section of the metal case 2. This metal case 2 contains the hydride 3. It is cold-tapered and bent around like the ends of a sausage casing, the slits 9 and lO being left open at the ends.
The hydride material 3 evinces the property of storing gases, preferably hydrogen, under specific thermal conditions, to release them and to store them again. When manufacturing the vacuum-tube collector shown in Fig. l, this collector is heated jointly with the metal case 2 containing the hydride 3. During this heating the hydrogen gas issuing from the hydride 3 flushes across the inside surfaces which it purifies. Residual gases are removed.
Thereupon the tube is evacuated by means of the evacuation tubing 8 and is sealed. However, following heating, , evacuation also can be achieved without additional evacuation steps solely by means of the hydride storage (metal case 2 with hydride material 3) present in the glass tube l. The hydride storage acts as an evacuation accessory in the sense of gas scavenging.
The vacuum-tube collector shown in longitudinal section in Fig. 3 comprises the glass tube l which is sealed vacuum-tight at least at one end by thermo-compression. The description of Fig. l concerning this seal in the form of the metal cap 6 applies here too. In addition, the metal cap 6 comprises the measurement tubing 14 because directly communi-cating with the vacuum.
.. .... . . , ~ . . - . ~ , . ~ -- . . .
-~
.:
~ Q '~ ~ 2 1 7 4 :
The absorber tube 11 is ~ounted inside this glass tube 1 and the coaxial-tube connection system 12 is located inside said tube 11.
The metal case 13 is affixed to the base of the absorber tube 11. This metal case 13 is can-shaped and con-tains the hydride.
: .
.. .
Claims (6)
1. A vacuum-tube collector with a glass tube sealed vacuum-tight at least at one end by thermo-compression, characterized in that a metal case (2, 13) containing a hydride material (3) is present in the glass tube (1).
2. Vacuum-tube collector defined in claim 1, characterized in that the metal case (2, 13) is cold-tapered and bent around like the ends of a sausage casing or cold-shaped like a can and is open.
3. Vacuum-tube collector defined in claims 1 or 2, characterized in that the metal case (2, 13) is affixed inside the glass tube (1) to the absorber and opposite the scavenging aperture (5).
4. Vacuum-tube collector defined in claims 1, 2 or 3, characterized in that it is fitted with measurement tubing directly communicating with the vacuum to allow indi-rectly measuring the vacuum level.
5. Vacuum-tube collector defined in at least one of the above claims, characterized in that the glass tube (1) is sealed by thermo-compression.
6. Vacuum-tube collector defined in at least one of the above claims, characterized in that the glass tube (1) is fitted with an optical vacuum indicator allowing direct inferences about the vacuum level.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9004917U DE9004917U1 (en) | 1990-04-30 | 1990-04-30 | Vacuum tube collector |
| DE9004917.9U | 1990-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2063247A1 true CA2063247A1 (en) | 1991-10-31 |
Family
ID=6853385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002063247A Abandoned CA2063247A1 (en) | 1990-04-30 | 1991-04-12 | Vacuum tube collector |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0479987B1 (en) |
| JP (1) | JPH04506861A (en) |
| AT (1) | ATE113367T1 (en) |
| CA (1) | CA2063247A1 (en) |
| DE (2) | DE9004917U1 (en) |
| WO (1) | WO1991017398A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2755216B1 (en) | 1996-10-29 | 1998-11-27 | Jouck Philip Allan | ABSORBER FOR TUBULAR VACUUM TYPE SOLAR COLLECTOR |
| WO1999045329A1 (en) | 1998-03-04 | 1999-09-10 | Philip Allan Jouck | Absorber for vacuum tubular solar collector |
| CN102334914B (en) * | 2011-08-09 | 2014-06-04 | 罗伟林 | Anti-electric leakage glass tube heater |
| DE102011082767B4 (en) * | 2011-09-15 | 2014-12-04 | Schott Solar Ag | absorber tube |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2635262C2 (en) * | 1976-08-05 | 1983-04-28 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Solar panel with an evacuated cover |
| DE2712153A1 (en) * | 1977-03-19 | 1978-09-28 | Erno Raumfahrttechnik Gmbh | Flat solar panel - has evacuated space with edge seals surrounded by further evacuated space, esp. contg. adsorber or getter |
| NL7808774A (en) * | 1978-08-25 | 1980-02-27 | Philips Nv | SOLAR COLLECTOR. |
| GB2089024B (en) * | 1980-12-06 | 1985-01-16 | Kawaguchi Genbee | Solar energy collector |
| US4579107A (en) * | 1984-03-16 | 1986-04-01 | David Deakin | Solar energy collector and method of making same |
| DE8913387U1 (en) * | 1988-11-26 | 1990-01-25 | Prinz GmbH, 6534 Stromberg | Vacuum tube collector |
-
1990
- 1990-04-30 DE DE9004917U patent/DE9004917U1/en not_active Expired - Lifetime
-
1991
- 1991-04-12 CA CA002063247A patent/CA2063247A1/en not_active Abandoned
- 1991-04-12 EP EP91907692A patent/EP0479987B1/en not_active Expired - Lifetime
- 1991-04-12 DE DE59103348T patent/DE59103348D1/en not_active Expired - Fee Related
- 1991-04-12 WO PCT/EP1991/000699 patent/WO1991017398A1/en active IP Right Grant
- 1991-04-12 AT AT91907692T patent/ATE113367T1/en not_active IP Right Cessation
- 1991-04-12 JP JP3506882A patent/JPH04506861A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE59103348D1 (en) | 1994-12-01 |
| EP0479987A1 (en) | 1992-04-15 |
| JPH04506861A (en) | 1992-11-26 |
| DE9004917U1 (en) | 1990-07-05 |
| WO1991017398A1 (en) | 1991-11-14 |
| EP0479987B1 (en) | 1994-10-26 |
| ATE113367T1 (en) | 1994-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |