MX2014001210A - Solar collector of glass evacuated tubes with metallic core. - Google Patents
Solar collector of glass evacuated tubes with metallic core.Info
- Publication number
- MX2014001210A MX2014001210A MX2014001210A MX2014001210A MX2014001210A MX 2014001210 A MX2014001210 A MX 2014001210A MX 2014001210 A MX2014001210 A MX 2014001210A MX 2014001210 A MX2014001210 A MX 2014001210A MX 2014001210 A MX2014001210 A MX 2014001210A
- Authority
- MX
- Mexico
- Prior art keywords
- metal core
- solar collector
- tubes
- evacuated
- core according
- Prior art date
Links
- 239000011521 glass Substances 0.000 title claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 29
- 238000000576 coating method Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 6
- 230000002745 absorbent Effects 0.000 claims description 5
- 239000002250 absorbent Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 230000010354 integration Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 230000013011 mating Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The present invention describes a solar collector of glass evacuated tubes with metallic core, which includes a glass tube formed by two cylindrical concentric tubes, one interior and the other exterior, which are attached together by both end portions thereof and with vacuum in the annular space formed between the two cylinders, which is characterized in that it has a metallic core and two seals in the end portions of the glass tube, as well as connectors in the end portions that enable the structure to be modular.
Description
SOLAR COLLECTOR OF EVACUATED GLASS PIPES WITH METAL SOUL
FIELD OF THE INVENTION
The present invention relates to collector devices exposed to solar radiation to collect energy, that is, it has thermosolar applications, it is not limited to water heating, it is extended for other uses in the industry such as milk, juices and other types of fluids. require a heating process. More specifically, it relates to a collector of evacuated glass tubes having a metal tube therein to which a selective absorbent coating can be added to raise the temperature of a fluid passing through said metal tube.
OBJECT OF THE INVENTION
The invention described herein is a solar collector evacuated tubes for simple installation, which has the particularity of having a metal core that improves the collection of energy from solar radiation and more specifically, by its configuration is adapted to a parabolic cylindrical solar concentrator and allows it to adapt in a modular way to other collectors.
BACKGROUND
In the state of the art there are patents related to glass evacuated tubes very common commercially and most are focused for use in thermosolar applications that use selective coatings directly on the glass for greater absorption of energy.
The collectors most known and used are the thermosiphonic glass tubes, the water supply is by gravity. The glass tubes are vacuum, type "Deware", inserted in a tank by means of a Silicon seal. These tubes do not have the characteristics of two concentric glass tubes under vacuum. A few others use selective coatings added to a metal core, but the manufacturing costs are very high because of their use in specific applications where the design is focused on the use in solar thermal plants and high temperatures are required, since it takes advantage of water vapor for the generation of electricity through steam turbines or is located in large and open spaces like deserts, which requires high logistics and maintenance costs.
In the range of 100 ° C to 300 ° C there are few options for solar energy input and is typically used by industries or businesses in water heating processes, steam generation, dehydration of products and food, among others. Therefore, in the proposed invention, unlike other patents, the operating temperature is between 0000 ° C and 200 ° C, this reduces manufacturing costs and is useful for use in other industries and for applications where requires a high operating temperature.
The patent application MX2012001226A presents collectors of evacuated tubes of double opening glass, formed by two concentric tubes joined at the ends and evacuated, solving problems such as: tubes with less active heating section, decay of heating efficiency, severe incrustations, shorter life of the heater with hard water.
Said invention does not mention the use of selective coatings on glass and even less of a metallic core, object of the present invention.
Also, the patent application MX20122G0347A presents a flexible system of small-scale linear parabolic solar concentrator for power generation and dehydration. A fairly complete system that lacks the integration of selective coatings applied to an efficient collector, such as double-opening glass tubes.
The existing technologies that integrate a metallic element use springs to counteract the expansion derived from the high temperatures since the vacuum is contained directly between the metal cavity and the glass. If these springs do not exist, the glass that expands to a lesser extent will fracture or break.
In some countries, there is not enough inventiveness in terms of renewable energies because it generates high installation and start-up costs. Additionally, manufacturers integrate high costs in installation and maintenance.
Therefore, it is difficult to find a technology that meets the needs of the user and at low cost.
Therefore, the proposed invention presents a low cost metal core collector option that can be used for industrial, commercial and domestic applications, reaching temperatures in the range of 100 ° C to 200 ° C and so that within they flow different liquids.
BRIEF DESCRIPTION OF THE FIGURES
Figure 1. Front view of the collector with metal core.
Figure 2. Explosive view of the end of the collector with metal core.
Figure 3. Cross section of the collector with metal core.
Figure 4. View of the connector at the end of the metal tube
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to a solar collector that is formed of a glass tube
(1), a metal tube (2) called metallic core and two polymeric seals (3).
Said glass tube (1) is formed by two concentric cylindrical tubes, one inner (the) and one outer (Ib) which are joined at both ends and with vacuum (le) in the annular space between the two cylinders.
The glass tube (1) is open on both sides to allow the introduction of the metal core (2) and thus the flow of in and out of a liquid raise its temperature.
The said metal core is placed concentrically inside said glass tube (1).
(2) with a selective absorbent coating (2a) preferably, and which is held by polymeric seals (3) at the ends of the glass tube (1) in order to avoid losses by thermal convection.
The space between the inner tube (la) and the selective absorbent coating (2a) is formed by air (2b).
Likewise, it is integrated in a modular manner with other collectors through a connector (3a) at the end where one can be male and one female connector.
This tube (2) is a thermal receiver that is usually made of stainless steel and coated with a selective surface (2a) to solar radiation.
The main function of this configuration is that it improves the collection of energy coming from solar radiation since there is no known collector that has the characteristics of being a system composed of a metal core with concentric tubes. This invention is designed to work with a parabolic cylindrical solar concentrator.
Its way of functioning is as follows: as the glass is transparent, sunlight enters the metal core and it absorbs the greatest amount of energy, this energy of solar radiation is converted into thermal energy which in turn is transferred to the liquid. Work, said liquid is made to flow in the metallic pipe allowing it to increase its temperature by absorbing the heat energy coming from the sun, transporting the energy to a conventional thermodynamic cycle.
The working liquid can be water, milk, juice or anything with liquid characteristics. The longitudinal axis of the collector is aligned at the concentration site of a parabolic cylindrical solar concentrator. Said solar concentrator can be adapted to a Fresnel type concentrator, a biparabolic concentrator or in any other way.
Claims (9)
1. Solar collector of evacuated glass tubes with metal core consisting of a glass tube formed by two concentric cylindrical tubes, one inner and one outer that are joined at both ends and with vacuum in the annular space between the two cylinders characterized by having a core metal and two seals on the ends of the glass tube.
2. Solar collector of glass evacuated tubes with metal core according to claim 1, further characterized in that said metal core is a metal tube that is inserted into the evacuated glass tubes and it is through this that a liquid is made to flow.
3. Solar collector of evacuated glass tubes with metal core according to claim 1, also characterized in that said seals are polymeric or of materials of similar characteristics.
4. Solar collector of evacuated glass tubes with metal core according to claim 2, also characterized in that said metal tube contains selective absorbent coating of solar thermal radiation.
5. Solar collector of evacuated glass tubes with metal core according to claims 1 and 4, also characterized in that the annular space between the inner tube and the selective absorbent coating is constituted by air.
6. Solar collector of evacuated glass tubes with metal core according to claims 1 and 2, also characterized in that connectors are coupled to the ends of said metal tube.
7. Solar collector of evacuated glass tubes with metal core according to claim 6, also characterized in that the mating connectors can be a male and a female connector to allow a modular integration with other collectors.
8. Solar collector of glass evacuated tubes with metal core according to claim 1, also characterized in that it is designed to work with a parabolic cylindrical solar concentrator.
9. Solar collector of evacuated glass tubes with metal core according to claims 1 and 8, also characterized in that to operate with a parabolic cylindrical solar concentrator the longitudinal axis of the collector is aligned at the concentration point of said solar concentrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MX2014001210A MX2014001210A (en) | 2014-01-29 | 2014-01-29 | Solar collector of glass evacuated tubes with metallic core. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MX2014001210A MX2014001210A (en) | 2014-01-29 | 2014-01-29 | Solar collector of glass evacuated tubes with metallic core. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX2014001210A true MX2014001210A (en) | 2015-07-29 |
Family
ID=54557146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2014001210A MX2014001210A (en) | 2014-01-29 | 2014-01-29 | Solar collector of glass evacuated tubes with metallic core. |
Country Status (1)
| Country | Link |
|---|---|
| MX (1) | MX2014001210A (en) |
-
2014
- 2014-01-29 MX MX2014001210A patent/MX2014001210A/en unknown
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