CN2856858Y - Narrow neck reflacting focusing all-glass vacuum solar heat collecting tubes - Google Patents
Narrow neck reflacting focusing all-glass vacuum solar heat collecting tubes Download PDFInfo
- Publication number
- CN2856858Y CN2856858Y CNU200520088085XU CN200520088085U CN2856858Y CN 2856858 Y CN2856858 Y CN 2856858Y CN U200520088085X U CNU200520088085X U CN U200520088085XU CN 200520088085 U CN200520088085 U CN 200520088085U CN 2856858 Y CN2856858 Y CN 2856858Y
- Authority
- CN
- China
- Prior art keywords
- tube
- cover glass
- glass tube
- solar heat
- narrow neck
- 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 - Fee Related
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- 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
Abstract
A thin-opening type reflecting and focusing full-glass vacuum solar heat-collector which provides an improvement of the cover glass tube, comprising a special-shaped tube with a head, a tail and a middle part, the head and the tail are circular tubes which can be sealed with an inner tube, the section of the middle part of the cover glass tube is a curve, the upper part of tube is an arc or other geometric shapes, the lower part is provided with a reflective layer on the inner wall, the arc can focus incident light in various angles on the arc of the inner tube, the close end of the inner tube is supported to the interior of the glass tube by a bearing piece, the open ends of the tubes are fused together, a solar selective absorption layer is coated onto the exterior surface of the inner tube, an air-absorption film is coated in the internal wall of the close end of the cover glass tube and an air inhalant agent is disposed on the bearing piece and which pumps the part between the tubes to vacuum. The solar heat-collection tube improves light utilization efficiency and obtains a higher using temperature.
Description
Affiliated technical field
The utility model relates to a kind of solar energy optical-thermal conversion equipment, especially narrow neck reflect focalization complete glass vacuum sun thermal-collecting tube.
Background technology
At present, the complete glass vacuum sun thermal-collecting tube of extensive use on the market, it is formed by inner glass tube and the sealing-in of cover glass tube suit that end sealing is respectively arranged, between blind end two pipes support member is arranged, and the openend sealing by fusing is integral, and vacuumizes between two pipes.Outer wall of inner tube is with the high coating for selective absorption that absorbs low reflection, and cover glass tube inwall blind end has one section air-breathing rete, is placed with getter on the support member.Its operation principle is: sunshine see through glass tube change on the coating for selective absorption of pipe in shining heat energy be transferred to again in heat-conducting medium or heating object in the pipe.
This vacuum tube is in when work, have only the side to light of interior pipe to expose to sunlight in fact and obtain energy, and shady face almost can not get energy in shade; Owing to stay certain clearance between adjacent two pipes, and the light that is radiated between the adjacent interior pipe has been missed, and the leakage ratio is up to 30～50%.Thereby influenced unit are and get heat, also increased cost, caused waste.In order to remedy this defective, people's design and installed such as reflecting plate, condensing diaphragm, etc. reflex reflector to improve the utilization rate of light.Effect is unsatisfactory.Owing to increased above-mentioned reflex reflector, increased the thermal-arrest cost.Especially in the environment, easily accumulated snow, laying dust, corrosion etc. are very fast ineffective in the open for these reflex reflector long term exposure.The solution or the technical patent of vacuum interlayer appear reflex reflector is built in recently, the problem that exists is that reverberation can not focus on, and effectively reflective area is very little, still has 20～30% light leak between the cover glass tube, also brought metal venting to destroy vacuum simultaneously, disadvantage such as heat waste is big.
Summary of the invention
In order to overcome the in-problem deficiency of prior art, the utility model provides a kind of novel narrow neck reflect focalization complete glass vacuum sun thermal-collecting tube, and this complete glass vacuum sun thermal-collecting tube has not only improved the utilization rate of light, and has improved heat-insulating property.
The technical scheme that its technical problem that solves the utility model adopts is: narrow neck reflect focalization complete glass vacuum sun thermal-collecting tube, form by interior pipe, cover glass tube, coating for selective absorption, support member, getter, breathing film, reflecting layer, it is that cover glass tube has been done improvement, make the special pipe of initial and end and middle three sections compositions, two sections is pipe end to end, with interior duct occlusion and be nested together, cover glass tube mid portion section configuration is a curve, and the first half is circular arc or other geometry; The latter half inner wall belt reflecting layer, curve is the curve on the pipe in focusing on after the incident light of various angles can being reflected, wherein the blind end of interior pipe is fixed in the cover glass tube with support member, the openend sealing by fusing of two pipes is integral, the outer surface of interior pipe is coated with solar selective absorbing coating, cover glass tube blind end inwall has one section breathing film, is placed with getter on the support member, and will be evacuated between two pipes.
Focus on interior pipe after the incident light reflection of the various angles that cover glass tube can be missed interior pipe, improved the efficiency of light energy utilization to greatest extent.Its structure is that interior pipe has coating for selective absorption, in a tubular form, the thinner and interior pipe jointing in cover glass tube two ends, combining form is identical with existing complete glass vacuum sun thermal-collecting tube, and the cover glass tube mid portion then is to satisfy the polymorphic structure that specific function requires.
Cover glass tube is by initial and end and middle three sections special pipes of forming, and two sections is to be fitted together short thinner pipe, afterbody sealing, head and interior pipe sealing-in with interior pipe box end to end.The section configuration of cover glass tube mid portion is made up of the curve that can satisfy the specific function requirement.Divide two parts up and down.The first half curve is circular arc or other geometry, is transparent; The latter half inner wall belt reflecting layer, curve is the curve on the pipe in focusing on after the incident light of various angles can being reflected.
Described reflecting layer is the specular reflective material of one deck high reflectance.Can be attached on the surfaces externally and internally of cover glass tube, be good with inner surface.
The beneficial effects of the utility model are and since adopted can reflect focalization the narrow neck cover glass tube, can realize the glass tube solid matter, heat energy is gone up and changed into to pipe in no matter the light leak between the interior pipe can both reflex to from the sort of angle incident.So just increase the effective area of single tube greatly, improved the utilization ratio of light, also can obtain higher serviceability temperature.Reflector layer also has anti-hot merit energy simultaneously.The reflect heat that interior pipe radiation is come can be gone back, improve heat-insulating property.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the front view of narrow neck reflect focalization complete glass vacuum sun thermal-collecting tube.
Fig. 2 is the left view of narrow neck reflect focalization complete glass vacuum sun thermal-collecting tube.
Fig. 3 is the A-A view of narrow neck reflect focalization complete glass vacuum sun thermal-collecting tube.
1. interior pipe, 2. cover glass tube, 3. coating for selective absorption, 4. support member, 5. getter, 6. breathing film, 7. reflecting layer among the figure.
The specific embodiment
In Fig. 1,2,3, it is that cover glass tube (2) has been done improvement, makes the special pipe of initial and end and middle three sections compositions, two sections is pipe end to end, seal with interior pipe (1) and be nested together, cover glass tube mid portion section configuration is a curve, and the first half is circular arc or other geometry; The latter half inner wall belt reflecting layer (7), curve is the curve on the pipe in focusing on after the incident light of various angles can being reflected, wherein the blind end of interior pipe is fixed in the cover glass tube with support member (4), the openend sealing by fusing of two pipes is integral, the outer surface of interior pipe is coated with solar selective absorbing coating (3), cover glass tube blind end inwall has one section breathing film (6), is placed with getter (5) on the support member, and will be evacuated between two pipes.
Claims (2)
1, a kind of narrow neck reflect focalization complete glass vacuum sun thermal-collecting tube, form by interior pipe, cover glass tube, coating for selective absorption, support member, getter, breathing film, reflecting layer, it is characterized in that: it is a special pipe of cover glass tube (2) being made initial and end and middle three sections compositions, two sections is pipe end to end, seal with interior pipe (1) and be nested together, cover glass tube mid portion section configuration is a curve.
2, according to the described narrow neck reflect focalization of claim 1 complete glass vacuum sun thermal-collecting tube, it is characterized in that: special-shaped cover glass tube the latter half inner wall belt reflecting layer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200520088085XU CN2856858Y (en) | 2005-10-23 | 2005-10-23 | Narrow neck reflacting focusing all-glass vacuum solar heat collecting tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200520088085XU CN2856858Y (en) | 2005-10-23 | 2005-10-23 | Narrow neck reflacting focusing all-glass vacuum solar heat collecting tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2856858Y true CN2856858Y (en) | 2007-01-10 |
Family
ID=37600162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200520088085XU Expired - Fee Related CN2856858Y (en) | 2005-10-23 | 2005-10-23 | Narrow neck reflacting focusing all-glass vacuum solar heat collecting tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2856858Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393090A (en) * | 2011-08-06 | 2012-03-28 | 海宁伊满阁太阳能科技有限公司 | Method, product and equipment for collecting light of rough mirror surface of vacuum heat-collecting pipe-cover glass pipe |
-
2005
- 2005-10-23 CN CNU200520088085XU patent/CN2856858Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393090A (en) * | 2011-08-06 | 2012-03-28 | 海宁伊满阁太阳能科技有限公司 | Method, product and equipment for collecting light of rough mirror surface of vacuum heat-collecting pipe-cover glass pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |