CN104567014A - Vacuum heat-absorption tubes of solar glass - Google Patents
Vacuum heat-absorption tubes of solar glass Download PDFInfo
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- CN104567014A CN104567014A CN201510033934.XA CN201510033934A CN104567014A CN 104567014 A CN104567014 A CN 104567014A CN 201510033934 A CN201510033934 A CN 201510033934A CN 104567014 A CN104567014 A CN 104567014A
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- glass tube
- glass
- tube
- valley
- solar energy
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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 belongs to the field of solar energy utilization, in particular to vacuum heat-absorption tubes of solar glass. The vacuum heat-absorption tubes of the solar glass comprises an inner glass tube and a double-layer internal-sleeved glass tube formed by outer glass tubes sleeved outside the inner glass tube, wherein the space between the outer wall of the inner glass tube and the inner wall of the outer glass tube forms a vacuum cavity, the outer surface of the inner glass tube is a concave-convex peak-valley rough surface, and a heat-absorption film layer is arranged on the concave-convex peak-valley rough surface. Due to the fact that the outer surface of the glass tube is concave-convex peak-valley rough, the vertical irradiating surface of light rays is increased, the light rays which refract on the peak-valley surface for multiple times is increased, the peak-valley surface linearly grows, the light receiving area is enlarged, and the light absorption property is changed greatly due to the fact that the heat-absorption film layer is a matt surface. The inventor obtains the facts through scientific calculation and field experiments that the vacuum heat-absorption tubes of the solar glass can improve the heat efficiency of 30%-50% and even can reach 70% in a specified environment comparing to the existing vacuum heat-absorption tubes of the solar glass.
Description
Technical field
What the present invention relates to solar heat utilizes field, and specifically a kind of inner layer glass tube is coarse hair side and the solar energy glass vacuum endothermic tube of the rete that absorbs heat with sub-light.
Background technology
Traditional solar energy glass vacuum endothermic tube, shown in Fig. 1-3, be made up of pipe in printing opacity outer tube and antisolar glass, in antisolar glass, the outer surface of pipe has the heat absorption rete of high-absorbility, is evacuated between interlayer.Heat absorption rete be on bright and clean silicon boron glass pipe by Vacuum Magnetic sputtering technology, utilize the metal light rete of light palladium material sputtering sedimentation.As bright as a sixpence glass inner tube is as same " glittering metal bar ", under the condition of illumination, because body is a cylinder, sensitive surface is again a bright hemisphere, and on body surface, the round-the-clock vertical irradiation of sunlight only has a point, and even a line, all the other light increase by incidence angle, and oblique ray becomes many, therefore absorptance and photothermal deformation rate very low (generally only having 50% in industry).
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of inner layer glass tube and is coarse hair side and the solar energy glass vacuum endothermic tube of the rete that absorbs heat with sub-light, to improve the thermal absorptivity of solar energy glass vacuum pipe in unit are, save the means of production, strengthen the utilization of sunlight resource, expand the application that solar energy optical-thermal is lived work, agricultural production and the people.
In order to solve the problem, the present invention is achieved by the following technical solutions:
A kind of solar energy glass vacuum endothermic tube, comprise the two-layer inner casing type glass tube be made up of with the outer layer glass tube being enclosed within its outside inner layer glass tube, space between the outer wall of inner layer glass tube and the inwall of outer layer glass tube forms vacuum chamber, the outer surface of described inner layer glass tube is coarse concavo-convex peak valley hair side, and described coarse concavo-convex peak valley hair side is provided with heat absorption rete.
Further, described heat absorption rete is sub-light heat absorption rete.
Further, described sub-light heat absorption rete selects sub-light palladium material to form by magnetron sputtering is long-pending.
Further, the surface roughness of described coarse concavo-convex peak valley hair side is 0.08-0.5mm.
Further, outer layer glass tube is the low iron transparent glass tube of silicon boron printing opacity.
Compared with prior art, the invention has the beneficial effects as follows: the outer surface of inner layer glass tube of the present invention is coarse concavo-convex peak valley hair side, coarse concavo-convex peak valley hair side is provided with sub-light heat absorption rete, because the concavo-convex peak valley of glass tube exterior surface is uneven, light vertical irradiation face is increased, and the light repeatedly reflected in peak valley face increases, peak valley surface linear increases, light-receiving area strengthens, and the heat absorption rete adding upper surface is dull surface, light absorptive great change.Inventor draws in scientific algorithm and field experiment, solar energy glass vacuum endothermic tube of the present invention, improves 30%-50%, in specific environment, reach about 70% than the existing solar vacuum glass heat absorbing pipe thermal efficiency.
Vacuum glass heat absorbing pipe direct projection area of the present invention is large, repeatedly reflect wide, sensitive surface is many again, the huge increasing of overall sensitive surface, the sub-light heat absorption rete reflecting rate simultaneously adopted is low, therefore this glass evacuated endothermic tube thermal efficiency is high, under equivalent environment operating mode, it is 1.3 ~ 1.5 times of traditional product thermal conversion rate, not only save material in solar thermal utilization industry, expand and utilize field, and more reduce erection space and space, be the revolution again of solar energy optical-thermal vacuum tube, major step can be strided forward for China's industrialization solar thermal utilization.
Accompanying drawing explanation
Fig. 1 is the structure chart of traditional solar vacuum heat absorbing pipe;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is interior pipe illumination refraction schematic diagram in Fig. 2;
Fig. 4 is the structure chart of solar energy glass vacuum endothermic tube of the present invention;
Fig. 5 is the side view of Fig. 4;
Fig. 6 is the partial enlarged drawing at A place in Fig. 5;
Fig. 7 is the illumination refraction schematic diagram of peak valley hair side in Fig. 6.
In figure:
1, inner layer glass tube; 2, outer layer glass tube; 3, peak valley hair side; 4, sub-light heat absorption rete; 5, interior pipe holder.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Shown in Fig. 4-7, a kind of solar energy glass vacuum endothermic tube, comprise the two-layer inner casing type glass tube be made up of with the outer layer glass tube 2 being enclosed within its outside inner layer glass tube 1, space between the outer wall of inner layer glass tube and the inwall of outer layer glass tube forms vacuum chamber, outer layer glass tube is the low iron transparent glass tube of silicon boron printing opacity, the outer surface of inner layer glass tube is coarse concavo-convex peak valley hair side 3, the surface roughness of peak valley hair side can be 0.08mm, 0.09mm, 0.1mm, 0.3 or 0.5mm, coarse concavo-convex peak valley hair side is provided with sub-light heat absorption rete 4, sub-light heat absorption rete 4 selects sub-light palladium material to form by magnetron sputtering is long-pending.
Solar energy glass vacuum endothermic tube production technology of the present invention is identical with traditional product technique, traditional process equipment is changed without the need to changing, only at the preposition surface processing device of streamline, make glass inner tube surface irregularity peak valley moderate, the degree of depth is advisable, guarantee that glass inner tube stress is up to standard, hair side is even.Put into plated film storehouse, select sub-light plated film palladium material, plate sub-light heat absorption rete by normal process, take out the inner layer glass tube plated, add cover silicon boron glass outer tube, place interior pipe holder 5, two hot melt sealing-in, draw tail, find time, air-breathing, the high solar energy glass vacuum endothermic tube of absorptivity rolls off the production line finished product, except roughness value is except control, technological process is carried on as usual, and changes without the need to expanding or reinvests.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (5)
1. a solar energy glass vacuum endothermic tube, comprise the two-layer inner casing type glass tube be made up of with the outer layer glass tube being enclosed within its outside inner layer glass tube, space between the outer wall of inner layer glass tube and the inwall of outer layer glass tube forms vacuum chamber, it is characterized in that: the outer surface of described inner layer glass tube is coarse concavo-convex peak valley hair side, and described coarse concavo-convex peak valley hair side is provided with heat absorption rete.
2. solar energy glass vacuum endothermic tube according to claim 1, is characterized in that: described heat absorption rete is sub-light heat absorption rete.
3. solar energy glass vacuum endothermic tube according to claim 1, is characterized in that: described sub-light heat absorption rete selects sub-light palladium material to form by magnetron sputtering is long-pending.
4. solar energy glass vacuum endothermic tube according to claim 1, is characterized in that: the surface roughness of described coarse concavo-convex peak valley hair side is 0.08-0.5mm.
5. solar energy glass vacuum endothermic tube according to claim 1, is characterized in that: outer layer glass tube is the low iron transparent glass tube of silicon boron printing opacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510033934.XA CN104567014A (en) | 2015-01-23 | 2015-01-23 | Vacuum heat-absorption tubes of solar glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510033934.XA CN104567014A (en) | 2015-01-23 | 2015-01-23 | Vacuum heat-absorption tubes of solar glass |
Publications (1)
| Publication Number | Publication Date |
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| CN104567014A true CN104567014A (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510033934.XA Pending CN104567014A (en) | 2015-01-23 | 2015-01-23 | Vacuum heat-absorption tubes of solar glass |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52124241A (en) * | 1976-04-13 | 1977-10-19 | Agency Of Ind Science & Technol | Solar light abosrbing surface |
| CN101387445A (en) * | 2008-10-09 | 2009-03-18 | 姜振友 | High-efficiency vacuum glass thermal-collecting tube and fabrication technology thereof |
| CN202853174U (en) * | 2012-10-18 | 2013-04-03 | 张勇 | All-glass dual pass-through solar vacuum heat-collecting tube |
| CN202955901U (en) * | 2012-12-18 | 2013-05-29 | 成都创热太阳能技术有限公司 | Solar vacuum heat collection pipe capable of enlarging absorption area and improving compressive capacity |
| CN103791636A (en) * | 2012-10-30 | 2014-05-14 | 贾祖仪 | Novel heat collection pipe |
| CN204693856U (en) * | 2015-01-23 | 2015-10-07 | 郑尚顺 | Solar energy glass vacuum endothermic tube |
-
2015
- 2015-01-23 CN CN201510033934.XA patent/CN104567014A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52124241A (en) * | 1976-04-13 | 1977-10-19 | Agency Of Ind Science & Technol | Solar light abosrbing surface |
| CN101387445A (en) * | 2008-10-09 | 2009-03-18 | 姜振友 | High-efficiency vacuum glass thermal-collecting tube and fabrication technology thereof |
| CN202853174U (en) * | 2012-10-18 | 2013-04-03 | 张勇 | All-glass dual pass-through solar vacuum heat-collecting tube |
| CN103791636A (en) * | 2012-10-30 | 2014-05-14 | 贾祖仪 | Novel heat collection pipe |
| CN202955901U (en) * | 2012-12-18 | 2013-05-29 | 成都创热太阳能技术有限公司 | Solar vacuum heat collection pipe capable of enlarging absorption area and improving compressive capacity |
| CN204693856U (en) * | 2015-01-23 | 2015-10-07 | 郑尚顺 | Solar energy glass vacuum endothermic tube |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |
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| RJ01 | Rejection of invention patent application after publication |