CN105258366A - Non-vacuum solar collector tube - Google Patents
Non-vacuum solar collector tube Download PDFInfo
- Publication number
- CN105258366A CN105258366A CN201510824617.XA CN201510824617A CN105258366A CN 105258366 A CN105258366 A CN 105258366A CN 201510824617 A CN201510824617 A CN 201510824617A CN 105258366 A CN105258366 A CN 105258366A
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- CN
- China
- Prior art keywords
- capping
- metal pipe
- collector metal
- transparent glass
- glass tube
- 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
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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
The invention provides a non-vacuum solar collector tube. The non-vacuum solar collector tube comprises a metal collector tube, a transparent glass tube coaxially sleeving the metal collector tube, and caps arranged from the end portions of both ends of the transparent glass tube toward the metal collector tube, respectively; the caps are sealed with contact portions of the transparent glass tube and the metal collector tube, respectively, and an outer wall of the metal collector pipe is in sliding connection with contact surfaces of the caps. The non-vacuum solar collector tube is simple and reasonable in structure, capable of effectively preserving heat, relatively low in manufacturing cost, long in service life, and suitable for groove type solar collectors only requiring low temperatures.
Description
Technical field
The present invention relates to the technical field of trough type solar heat-collector, particularly relate to a kind of antivacuum solar energy heat collection pipe.
Background technology
Trough type solar heat-collector full name is groove type parabolic mirror solar thermal collector, be by multiple grooved parabolic concentrator heat collector through series-parallel arrangement, focus on direct sunlight, the working medium inside heating, vacuum thermal-collecting tube, produce high temperature, and then carry out heat utilization.Compared with flat-plate solar collector and vacuum tube solar heating element, trough type solar heat-collector can obtain the energy of higher temperature more high-quality, is more suitable for the higher industrial or agricultural of temperature requirement and civil area.
It is the bottleneck hindering its development and promote that the cost of current groove type solar heat utilization remains high, through type glassy metal vacuum tube is the critical component of current trough type solar heat-collector, because these parts need metal and glass sealing, and need to consider the problems such as expansion is flexible, vacuum seal, Weatherproof ageing-resistant, cause this manufacture cost of parts very high, in the cost of trough type solar heat-collector, account for very large proportion.
Particularly, at the high-temperature field of tank-type thermal power generation, heating-up temperature reaches 300-600 DEG C, and in this temperature range, vacuum heat-preserving seems particularly important, and under current techniques background, through type glassy metal vacuum tube is absolutely necessary critical component.For the application that temperature requirement within the scope of 100-200 DEG C is not high, although vacuum heat-preserving performance is better, need the cost price paid also very high.
Visible, be necessary to design a kind of thermal-collecting tube being applicable to the low cost of trough type solar heat-collector.
Summary of the invention
For prior art Problems existing, the present invention proposes a kind of antivacuum solar energy heat collection pipe being suitable for applying in 100 DEG C ~ 200 DEG C temperature ranges, to reduce the cost of trough type solar heat-collector.
In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of antivacuum solar energy heat collection pipe, comprise collector metal pipe, be enclosed within transparent glass tube outside collector metal pipe coaxially, from the end, two ends of this transparent glass tube, described collector metal pipe is provided with capping, capping keeps sealing with the contact site of described transparent glass tube, collector metal pipe respectively, and the described outer tube wall of collector metal pipe and the contact surface of capping are slidably connected.
Technique scheme; seal between transparent glass tube and capping; play effect that is dust-proof, waterproofing protection collector metal pipe; also seal between collector metal pipe and capping; heat insulation effect can be played; and collector metal pipe can move vertically relative to capping, the length variations caused because glass is different from metal temperature and the coefficient of expansion can be compensated.It is simple and reasonable, can effectively be incubated, and manufacturing cost relative moderate, long service life, is applicable to the trough type solar heat-collector that temperature requirement is not high.
The contact surface indent of described capping and collector metal pipe, and be provided with at this interior recess can the dynamic seal that slides of relatively described collector metal pipe outer tube wall, the other end of capping is provided with the groove matched with described clear glass tube wall end, is provided with the static seal for sealing described transparent glass tube in this groove.Capping and the sealing of collector metal pipe when producing relative sliding is kept by the closure between static seal maintenance capping and transparent glass tube, dynamic seal.
Described antivacuum solar energy heat collection pipe also comprises the one-way exhaust pipe passing capping from the gap between described collector metal pipe and transparent glass tube.The high pressure caused that clear glass inner air tube under the condition of high temperature can be expanded is discharged, and ensures the security of transparent glass tube, and due to high temperature air discharge, inner air tube reduces, and effectively reduces the heat loss that convection current causes.
Collector metal pipe inside described capping is provided with shadow shield.By shadow shield, solar energy can be blocked, avoid dynamic seal, static seal and capping temperature too high, play certain protective effect.
Advantage of the present invention is:
(1) this thermal-collecting tube is without vacuum heat-preserving requirement, and without the need to technical requirements such as glassy metal sealing-ins, technique is simple, significantly can reduce thermal-collecting tube cost;
(2) owing to there is not vacuum leak in this thermal-collecting tube, dissimilar metal sealing-in problems of crack, and the method for attachment between each parts is conventional ripening technology, even if use in the presence of a harsh environment, relative to conventional thermal-collecting tube, service life is significantly increased.
Accompanying drawing explanation
Fig. 1 is the structural representation of the antivacuum solar energy heat collection pipe of the present invention;
Fig. 2 is the top view of the antivacuum solar energy heat collection pipe of the present invention along tube wall direction;
Description of reference numerals: 1, transparent glass tube; 2, shadow shield; 3, capping; 4, dynamic seal; 5, collector metal pipe; 6, one-way exhaust pipe; 7, static seal.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Embodiment
As shown in Figure 1, a kind of antivacuum solar energy heat collection pipe, comprise collector metal pipe 5, be enclosed within transparent glass tube 1 outside collector metal pipe 5 coaxially, from the end, two ends of this transparent glass tube 1, described collector metal pipe 5 is provided with capping 3, capping 3 keeps sealing with the contact site of described transparent glass tube 1, collector metal pipe 5 respectively, and the outer tube wall of described collector metal pipe 5 and the contact surface of capping 3 are slidably connected.
Further, the contact surface indent of described capping 3 and collector metal pipe 5, and be provided with at this interior recess can the dynamic seal 4 that slides of relatively described collector metal pipe 5 outer tube wall, the other end of capping 3 is provided with the groove matched with described transparent glass tube 1 tube wall end, is provided with the static seal 7 for sealing described transparent glass tube 1 in this groove; Described antivacuum solar energy heat collection pipe also comprises the one-way exhaust pipe 6 passing capping 3 from the gap between described collector metal pipe 5 and transparent glass tube 1; Collector metal pipe 5 inside described capping 3 is provided with shadow shield 2.
Generally speaking, antivacuum solar energy heat collection pipe of the present invention, comprises transparent glass tube 1, shadow shield 2, capping 3, dynamic seal 4, collector metal pipe 5, one-way exhaust pipe 6, static seal 7 etc.Sealed by static seal 7 between transparent glass tube 1 and capping 3, play the effect of dust-proof, waterproof and protection collector metal pipe 5; Be connected by dynamic seal 4 between collector metal pipe 5 with capping 3 and seal, dynamic seal 4 plays heat insulation, sealing function, and collector metal pipe 5 can move vertically relative to capping 3 and dynamic seal 4, can compensate the length variations caused because glass is different from metal temperature and the coefficient of expansion; Moreover, due at high operating temperatures, in transparent glass tube 1, air can expand and cause overpressure to increase, and gas in pipe can be discharged by the one-way exhaust pipe 6 that the present invention is arranged, ensure the safety of transparent glass tube 1, and due to high temperature air discharge, inner air tube reduces, and more effectively can reduce the heat loss that convection current causes.In addition, solar energy blocks by described shadow shield 2, avoids dynamic seal 4, static seal 7 and capping 3 temperature too high, plays certain protective effect.
Compared with Conventional metallic glasses vacuum tube, though collecting efficiency decreases, this thermal-collecting tube has the advantages such as structure is simple, cost is low, the life-span is long.
Above-listed detailed description is illustrating for possible embodiments of the present invention, and this embodiment is also not used to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the scope of the claims of this case.
Claims (4)
1. an antivacuum solar energy heat collection pipe, it is characterized in that, comprise collector metal pipe, be enclosed within transparent glass tube outside collector metal pipe coaxially, from the end, two ends of this transparent glass tube, described collector metal pipe is provided with capping, capping keeps sealing with the contact site of described transparent glass tube, collector metal pipe respectively, and the described outer tube wall of collector metal pipe and the contact surface of capping are slidably connected.
2. antivacuum solar energy heat collection pipe according to claim 1, it is characterized in that, the contact surface indent of described capping and collector metal pipe, and be provided with at this interior recess can the dynamic seal that slides of relatively described collector metal pipe outer tube wall, the other end of capping is provided with the groove matched with described clear glass tube wall end, is provided with the static seal for sealing described transparent glass tube in this groove.
3. antivacuum solar energy heat collection pipe according to claim 1 and 2, is characterized in that, also comprises the one-way exhaust pipe passing capping from the gap between described collector metal pipe and transparent glass tube.
4. antivacuum solar energy heat collection pipe according to claim 1 and 2, is characterized in that, the collector metal pipe inside described capping is provided with shadow shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510824617.XA CN105258366A (en) | 2015-11-24 | 2015-11-24 | Non-vacuum solar collector tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510824617.XA CN105258366A (en) | 2015-11-24 | 2015-11-24 | Non-vacuum solar collector tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105258366A true CN105258366A (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510824617.XA Pending CN105258366A (en) | 2015-11-24 | 2015-11-24 | Non-vacuum solar collector tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN105258366A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2695867Y (en) * | 2004-04-07 | 2005-04-27 | 扬州市赛恩斯科技发展有限公司 | Quick heating through solar heat collecting pipe |
| CN101135501A (en) * | 2006-08-28 | 2008-03-05 | 中国科学院电工研究所 | High-temperature solar thermal-collecting tube and manufacturing process thereof |
| CN201327210Y (en) * | 2008-12-12 | 2009-10-14 | 东莞市康达机电工程有限公司 | Inner corrugated pipe type solar vacuum heat-collecting pipe |
| CN203719163U (en) * | 2013-12-09 | 2014-07-16 | 江苏贝德莱特太阳能科技有限公司 | Phase-change heat storage type solar water heater structure |
| US20140238386A1 (en) * | 2013-02-23 | 2014-08-28 | Alexander Levin | Radiation absorbing metal pipe |
| CN205174883U (en) * | 2015-11-24 | 2016-04-20 | 中国科学院广州能源研究所 | Non -vacuum solar energy collector tube |
-
2015
- 2015-11-24 CN CN201510824617.XA patent/CN105258366A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2695867Y (en) * | 2004-04-07 | 2005-04-27 | 扬州市赛恩斯科技发展有限公司 | Quick heating through solar heat collecting pipe |
| CN101135501A (en) * | 2006-08-28 | 2008-03-05 | 中国科学院电工研究所 | High-temperature solar thermal-collecting tube and manufacturing process thereof |
| CN201327210Y (en) * | 2008-12-12 | 2009-10-14 | 东莞市康达机电工程有限公司 | Inner corrugated pipe type solar vacuum heat-collecting pipe |
| US20140238386A1 (en) * | 2013-02-23 | 2014-08-28 | Alexander Levin | Radiation absorbing metal pipe |
| CN203719163U (en) * | 2013-12-09 | 2014-07-16 | 江苏贝德莱特太阳能科技有限公司 | Phase-change heat storage type solar water heater structure |
| CN205174883U (en) * | 2015-11-24 | 2016-04-20 | 中国科学院广州能源研究所 | Non -vacuum solar energy collector tube |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160120 |