CN101344331A - Light-concentration explosion-proof full glass heat pipe type solar heat collection pipe - Google Patents
Light-concentration explosion-proof full glass heat pipe type solar heat collection pipe Download PDFInfo
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- CN101344331A CN101344331A CNA2008101962785A CN200810196278A CN101344331A CN 101344331 A CN101344331 A CN 101344331A CN A2008101962785 A CNA2008101962785 A CN A2008101962785A CN 200810196278 A CN200810196278 A CN 200810196278A CN 101344331 A CN101344331 A CN 101344331A
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- heat pipe
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- glass heat
- tube
- evaporator section
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
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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
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Abstract
The invention discloses a condensing anti-explosion all-glass heat tube type solar energy heat collecting tube, which relates to the technical field of solar energy light-heat conversion elements. The solar energy heat collecting tube of the invention comprises a glass outer tube, and a glass heat tube which has built-in working media and is composed of a condensation section and an evaporation section, the evaporation section of the glass heat tube is sealed in the glass outer tube, and the solar energy heat collecting tube is characterized in that the outer diameter of the evaporation section of the glass heat tube is one sixth to one half of the inner diameter of the glass outer tube, and a reflection part is arranged between the glass outer tube and the evaporation section of the glass heat tube. The solar energy heat collecting tube of the invention fully utilizes the reflected light of the sun, thereby obtaining hither output temperature and thermal efficiency. Due to the design of the evaporation section of the thin glass heat tube, the heat transfer can be accelerated, in addition, the sufficient pressure resistance strength can be further ensured without the thickening of the wall thickness, therefore the use safety is effectively ensured, the materials are simultaneously saved, the heat transfer speed and the heat transfer efficiency are improved, so the solar energy heat collecting tube can be widely applied to solar heating and cooling, seawater desalination and other related fields.
Description
Technical field
The present invention relates to the technical field of solar energy thermal conversion element.
Background technology
The solar energy hot device that utilizes the solar energy optical-thermal transfer principle to make has been extended to technical fields such as hot water engineering and desalinization in recent years from family expenses.But, because the glass heat pipe and the glass outer outer concentric tube that are used to transmit heat in the existing full glass heat pipe type solar heat collector, in order to increase the irradiated area of accepting illumination, people increase the diameter of glass heat pipe as much as possible, so that the wall thickness of glass heat pipe must corresponding thickening could guarantee enough compressive resistances, volume that also must corresponding increase working medium simultaneously, not only waste material but also reduce heat transfer rate and heat transfer efficiency.
Summary of the invention
The object of the invention is to design and a kind ofly need not to thicken glass tube walls, just can absorb in large quantities by little caliber that to transform luminous energy be the light-concentration explosion-proof full glass heat pipe type solar thermal-collecting tube of heat energy.
The present invention includes glass heat pipe glass outer tube and built-in working medium, that form by condensation segment and evaporator section, the evaporator section sealing-in of described glass heat pipe is in the glass outer tube, the external diameter that it is characterized in that described glass heat pipe evaporator section is 1/6～1/2 of a glass outer tube diameter, between glass outer tube and glass heat pipe evaporator section reflecting element is set.
The present invention uses nonimaging optically focused, need not to follow the tracks of the sun and can realize spotlight effect.In order to ensure preferable spotlight effect, the external diameter of inner glass tube of the present invention is not less than 1/6 of outer glass pipe external diameter.For reach bigger optically focused than and reduce heat transfer medium in the inner glass tube, obtain higher output temperature, heat transfer rate and heat transfer efficiency, the external diameter of inner glass tube of the present invention is not more than 1/2 of outer glass pipe external diameter.
The present invention can make full use of the reverberation of the sun under the effect of reflecting element, obtain the higher output temperature and the thermal efficiency thus.Thin type glass heat pipe evaporator section by above design, not only can accelerate the transmission of heat, and because the design of thin type glass heat pipe evaporator section, wall thickness need not be thickeied and just enough compressive resistances can be guaranteed, safety in utilization ensures to get effectively, save material simultaneously, improved output temperature, heat transfer rate and heat transfer efficiency, can be widely used in the association areas such as solar energy hot, refrigeration, desalinization.
The external diameter of glass heat pipe evaporator section of the present invention is that 1/3 of glass outer tube diameter is better selection, and existing preferable spotlight effect has bigger optically focused ratio and less heat transfer medium again, obtains higher output temperature, heat transfer rate and heat transfer efficiency.
In order to realize preferable spotlight effect, glass heat pipe evaporator section arranged off-centre of the present invention is in the glass outer tube.
In addition, the condensation segment internal diameter of glass heat pipe of the present invention can increase heat exchange area greater than the evaporator section internal diameter, improves the heat transfer rate and the heat transfer efficiency of heat.
Because after the above-mentioned design, the evaporator section of glass heat pipe arranged off-centre easily and more can be beneficial to connection easily with the condensation segment and glass outer concentric tube layout of described glass heat pipe on condensation segment.
Produce for convenience, reflecting element of the present invention is a reflectance coating, can be set directly at the inner surface of glass outer tube.
Reflecting element of the present invention also can be reflecting plate, is arranged in the cavity between glass outer tube and the glass heat pipe evaporator section.
In order to improve reflecting effect, the reflecting surface of the cross section of described reflecting plate is ω shape.
For fear of thermal contact conductance, the minimum range between the outer surface of the crosspoint, center of described ω shape and the evaporator section of glass heat pipe is 1～10mm.
In order to realize preferable spotlight effect, ω shape of the present invention can be two circle involutes of basic circle for the outer surface with the evaporator section of glass heat pipe, also can be the double-paraboloid line, also can be for the inboard is a parabola for two circle involutes, the outside, can also be for forming by three sections different parabolas.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the left lateral view of Fig. 1.
Fig. 3 is the A-A sectional drawing of Fig. 1.
Fig. 4 is an another kind of structural representation of the present invention.
Fig. 5 is the left lateral view of Fig. 4.
Fig. 6 is the B-B sectional drawing of Fig. 4.
Fig. 7 is the another kind of B-B sectional drawing of Fig. 4.
Fig. 8 is a kind of structural representation of reflecting plate.
Fig. 9 is second kind of structural representation of reflecting plate.
Figure 10 is the third structural representation of reflecting plate.
Figure 11 is the 4th a kind of structural representation of reflecting plate.
The specific embodiment
As shown in Figure 1, 2, 3, the present invention mainly is made up of glass outer tube 1, glass heat pipe 2 and reflecting plate 3, glass heat pipe 2 built-in working medium, and be divided into condensation segment 2-1 and evaporator section 2-2, and evaporator section 2-2 outer surface is coated with the heat absorption rete.
Condensation segment 2-1 and evaporator section 2-2 are isometrical, and mutual arranged off-centre.The external diameter of glass heat pipe 2 is 1/6～1/2 of glass outer tube 1 internal diameter, is 1/3 among this figure.The evaporator section 2-2 sealing-in prejudicially of glass heat pipe 2 is in glass outer tube 1.
The reflecting surface of the cross section of reflecting plate 3 is ω shape, be arranged in the cavity between the evaporator section 2-2 of glass outer tube 1 and glass heat pipe 2, and to make the minimum range σ between the outer surface of evaporator section of the crosspoint, center of ω shape reflecting plate and glass heat pipe is 1～10mm.
Shown in Fig. 4,5,6, the present invention mainly is made up of glass outer tube 1, glass heat pipe 2 and reflecting plate 3, glass heat pipe 2 built-in working medium, and be divided into condensation segment 2-1 and evaporator section 2-2, and evaporator section 2-2 outer surface is coated with the heat absorption rete.
Condensation segment 2-1 internal diameter greater than with evaporator section 2-2 internal diameter, and evaporator section 2-2 is eccentric in condensation segment 2-1 and arranges.The external diameter of glass heat pipe 2 evaporator section 2-2 is 1/3 of glass outer tube 1 internal diameter, and condensation segment 2-1 external diameter is slightly less than glass outer tube 1 internal diameter.The concentric sealing-in of condensation segment 2-1 of glass heat pipe 2 is in glass outer tube 1 upper end, and the evaporator section 2-2 of glass heat pipe 2 is arranged in the glass outer tube 1 prejudicially.
The reflecting surface of the cross section of reflecting plate 3 is ω shape, be arranged in the cavity between the evaporator section 2-2 of glass outer tube 1 and glass heat pipe 2, and to make the minimum range σ between the outer surface of evaporator section of the crosspoint, center of ω shape and glass heat pipe is 1～10mm.
As shown in Figure 7, reflectance coating 3 ' the be fixedly connected on inner surface of glass outer tube 1, reflectance coating 3 ' can be to aluminize or silver coating.
As shown in Figure 8, the ω shape of the reflecting surface of reflecting plate is two circle involutes of basic circle for the outer surface with the evaporator section of glass heat pipe.
As shown in Figure 9, the ω shape of the reflecting surface of reflecting plate is the double-paraboloid line.
As shown in figure 10, the ω shape of the reflecting surface of reflecting plate is that the inboard is two circle involutes outside, at two continuous parabolas of outside difference of two circle involutes.
As shown in figure 11, the ω shape of the reflecting surface of reflecting plate is a symmetric figure, and every side is made up of three sections different parabolas.
Claims (10)
1, light-concentration explosion-proof full glass heat pipe type solar thermal-collecting tube, comprise glass heat pipe glass outer tube and built-in working medium, that form by condensation segment and evaporator section, the evaporator section sealing-in of described glass heat pipe is in the glass outer tube, the external diameter that it is characterized in that described glass heat pipe evaporator section is 1/6～1/2 of a glass outer tube diameter, between glass outer tube and glass heat pipe evaporator section reflecting element is set.
2, according to the described light-concentration explosion-proof full glass heat pipe type solar thermal-collecting tube of claim 1, the external diameter that it is characterized in that the glass heat pipe evaporator section is 1/3 of a glass outer tube diameter.
3,, it is characterized in that described glass heat pipe evaporator section arranged off-centre is in the glass outer tube according to the described light-concentration explosion-proof full glass heat pipe type solar thermal-collecting tube of claim 1.
4, according to the described light-concentration explosion-proof full glass heat pipe type solar thermal-collecting tube of claim 1, the condensation segment internal diameter that it is characterized in that described glass heat pipe is greater than the evaporator section internal diameter.
5,, it is characterized in that the condensation segment and the glass outer concentric tube layout of described glass heat pipe according to the described light-concentration explosion-proof full glass heat pipe type solar thermal-collecting tube of claim 4.
6, according to claim 1 or 2 or 3 or 4 or 5 described light-concentration explosion-proof full glass heat pipe type solar thermal-collecting tubes, it is characterized in that described reflecting element is a reflectance coating, is arranged on the inner surface of glass outer tube.
7, according to claim 1 or 2 or 3 or 4 or 5 described light-concentration explosion-proof full glass heat pipe type solar thermal-collecting tubes, it is characterized in that described reflecting element is a reflecting plate, be arranged in the cavity between glass outer tube and the glass heat pipe evaporator section.
8,, it is characterized in that the reflecting surface of the cross section of described reflecting plate is ω shape according to the described light-concentration explosion-proof full glass heat pipe type solar thermal-collecting tube of claim 7.
9, described according to Claim 8 light-concentration explosion-proof full glass heat pipe type solar thermal-collecting tube is characterized in that the minimum range between the outer surface of evaporator section of the crosspoint, center of described ω shape and glass heat pipe is 1～10mm.
10, according to Claim 8 or 9 described light-concentration explosion-proof full glass heat pipe type solar thermal-collecting tubes, it is characterized in that described ω shape is two circle involutes of basic circle for the outer surface with the evaporator section of glass heat pipe, or double-paraboloid line, or the inboard is parabola, or is made up of three sections different parabolas for two circle involutes, the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101962785A CN101344331A (en) | 2008-08-27 | 2008-08-27 | Light-concentration explosion-proof full glass heat pipe type solar heat collection pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101962785A CN101344331A (en) | 2008-08-27 | 2008-08-27 | Light-concentration explosion-proof full glass heat pipe type solar heat collection pipe |
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| Publication Number | Publication Date |
|---|---|
| CN101344331A true CN101344331A (en) | 2009-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101962785A Pending CN101344331A (en) | 2008-08-27 | 2008-08-27 | Light-concentration explosion-proof full glass heat pipe type solar heat collection pipe |
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| CN (1) | CN101344331A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538255A (en) * | 2012-01-18 | 2012-07-04 | 天普新能源科技有限公司 | Heat tube type all-glass vacuum solar collector tube |
| CN103712357A (en) * | 2013-12-30 | 2014-04-09 | 南京诚远太阳能科技有限公司 | Heat pipe using solar energy to achieve vacuum light condensation |
-
2008
- 2008-08-27 CN CNA2008101962785A patent/CN101344331A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538255A (en) * | 2012-01-18 | 2012-07-04 | 天普新能源科技有限公司 | Heat tube type all-glass vacuum solar collector tube |
| CN102538255B (en) * | 2012-01-18 | 2014-09-10 | 天普新能源科技有限公司 | Heat tube type all-glass vacuum solar collector tube |
| CN103712357A (en) * | 2013-12-30 | 2014-04-09 | 南京诚远太阳能科技有限公司 | Heat pipe using solar energy to achieve vacuum light condensation |
| CN103712357B (en) * | 2013-12-30 | 2016-04-06 | 南京诚远太阳能科技有限公司 | Utilize the heat pipe of solar energy evacuated optically focused |
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Open date: 20090114 |