CN202630478U - Variable vacuum degree idle sunning protection all-glass vacuum heat collection element - Google Patents
Variable vacuum degree idle sunning protection all-glass vacuum heat collection element Download PDFInfo
- Publication number
- CN202630478U CN202630478U CN2012202261163U CN201220226116U CN202630478U CN 202630478 U CN202630478 U CN 202630478U CN 2012202261163 U CN2012202261163 U CN 2012202261163U CN 201220226116 U CN201220226116 U CN 201220226116U CN 202630478 U CN202630478 U CN 202630478U
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- China
- Prior art keywords
- glass tube
- inner glass
- heat
- vacuum
- collection element
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- 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
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Abstract
A variable vacuum degree idle sunning protection all-glass vacuum heat collection element is formed by a shield glass tube and an inner glass tube in a concentrically sealing-connecting mode and is characterized in that a non light-receiving surface low thermal resistance of the inner glass tube is connected with adsorbing materials. A steel wire clamp spring low thermal resistance is used for being connected with activated carbon fiber adsorbing materials (4) in an about 140-degree angle of circumference non light-receiving surface of the inner glass tube(2). The inner glass tube (2) extends outward and is sealed on a melting-sealing position, and the interior of the inner glass tube (2) is vacuumized and is filled with working substance to form a heat tube. Sunlight penetrates the shield glass tube (1) and is converted to heat energy on a film layer of the inner glass tube (2), and the heat energy is output through a cold end (5). When the element normally collects heat, surface temperature of the inner glass tube (2) is less than 90 DEG C, and the adsorbing materials do not desorb. When the element is in idle sunning, the surface temperature of the inner glass tube (2) is quite high, the adsorbing materials (4) desorbs and liberates gas to enable vacuum degree of a vacuum thermal-protective layer (3) to decrease. The inner glass tube (2) releases the heat to environment through the gas inside the vacuum thermal-protective layer (3), so that excess highness of idle sunning temperature is limited.
Description
Technical field
The utility model relates to the empty protection full glass vacuum heat collection element that shines of variable vacuum.
Background technology
The all-glass heat pipe vacuum collector tube of existing heat pipe and the integrated making of inner glass tube has high absorptivity and extremely low emissivity, when obtaining gratifying solar collecting performance and heat-collecting temperature, the empty temperature of shining is reached more than 230 ℃.High like this sky shines temperature and brings the too high problem of heat-pipe working medium vapour pressure of integrated making sometimes.
Summary of the invention
The purpose of the utility model is to provide variable vacuum the empty protection full glass vacuum heat collection element that shines.
The utility model solves the technical scheme that its technical problem is taked: with cover glass tube and the concentric sealing-in of inner glass tube; Process an empty protection full glass vacuum heat collection element that shines of variable vacuum, at the non-side to light low thermal resistance connection sorbing material of said inner glass tube; Desorb takes place and emits gas in said sorbing material when being higher than uniform temperature; Absorption takes place when being lower than uniform temperature and absorb gas.
Agreement: side to light is meant on the hard-wired solar collection element inner glass tube zone that can be shone by direct sunlight; Zone on the solar collection element inner glass tube except that side to light all is non-side to light.
Can also adopt glass heat pipe with the integrated making of inner glass tube.
The beneficial effect of the utility model: the non-side to light low thermal resistance at the all-glass vacuum thermal-collecting tube inner glass tube connects sorbing material.During the thermal-collecting tube operate as normal, the inner glass tube temperature is no more than 90 ℃, and sorbing material is not emitted gas, and vacuum heat-insulation is effective; When sky shone, gas was emitted in said sorbing material generation desorb, and the vacuum of heat collecting element vacuum heat-insulating layer is reduced, and the heat energy on the inner glass tube distributes through environment.Thereby the sky that has limited low heat collecting element shines temperature further to raise.When using water as heat-pipe working medium, when empty solarization temperature was restricted to 160 ℃, vapour pressure was 6 atmospheric pressure, reduced nearly 4/5ths than empty 29 atmospheric pressure nearly that shine 230 ℃ of temperature of script.Less than 34 millimeters, wall thickness borosilicate 3.3 inner glass tubes greater than 1.6 millimeters, the integral type heat collector tube pipe of made has the bigger anti-empty allowance of shining for internal diameter.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is an empty composite construction sketch map that shines protection all-glass vacuum heat collector tube pipe of variable vacuum.
1. cover glass tubes among the figure; 2. inner glass tube; 3. vacuum heat-insulating layer; 4. sorbing material; 5. cold junction.
The specific embodiment
Fig. 1 provides an embodiment of the utility model.
Among Fig. 1,, forms a chuck, the interlayer of said chuck is vacuumized form a vacuum heat-insulating layer 3, process an empty solarization of variable vacuum and protect full glass vacuum heat collection element with cover glass tube 1 and inner glass tube 2 concentric sealing-ins.Deposit selective absorbing film on the inner glass tube 2.Non-side to light in inner glass tube 2 about 140 degree angle of circumference zones connects the about 200 millimeters activated carbon fiber adsorbing material of a block length 4 with the wire circlip low thermal resistance.Inner glass tube 2 melt the envelope place stretch out one section and the sealing, inner glass tube 2 inside vacuumize can working medium and a heat pipe is processed in sealed-off.
The operation principle of Fig. 1 embodiment: sunlight passes cover glass tube 1 and on inner glass tube 2 retes, converts heat energy into, and these heat energy are exported through cold junction 5 with the two phase flow endless form by the working medium of inside heat pipe.During normal thermal-arrest, the surface temperature of inner glass tube 2 is no more than 90 ℃, and desorb does not take place sorbing material.During empty the solarization, inner glass tube 2 surface temperatures are very high, and at this moment, sorbing material 4 desorbs are emitted gas and caused the vacuum of vacuum heat-insulating layer 3 to descend.To environment release portion heat energy, the excessive rising that this has just limited empty solarization temperature makes the steam pressure of inside heat pipe be unlikely to too high to inner glass tube 2 through the gas in the vacuum heat-insulating layer 3.
Claims (2)
1. the empty protection full glass vacuum heat collection element that shines of variable vacuum is processed by cover glass tube and the concentric sealing-in of inner glass tube, it is characterized in that being connected with sorbing material at the non-side to light low thermal resistance of said inner glass tube; Desorb takes place and emits gas in said sorbing material when being higher than uniform temperature; Absorption takes place when being lower than uniform temperature and absorb gas.
2. the empty protection full glass vacuum heat collection element that shines of variable vacuum according to claim 1 is characterized in that containing the glass heat pipe with the integrated making of inner glass tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202261163U CN202630478U (en) | 2012-05-18 | 2012-05-18 | Variable vacuum degree idle sunning protection all-glass vacuum heat collection element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202261163U CN202630478U (en) | 2012-05-18 | 2012-05-18 | Variable vacuum degree idle sunning protection all-glass vacuum heat collection element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202630478U true CN202630478U (en) | 2012-12-26 |
Family
ID=47383673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202261163U Expired - Fee Related CN202630478U (en) | 2012-05-18 | 2012-05-18 | Variable vacuum degree idle sunning protection all-glass vacuum heat collection element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202630478U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225892A (en) * | 2013-04-22 | 2013-07-31 | 施侃超 | Pressure reducing air sunning protecting all-glass vacuum heat pipe solar heat collection device |
| CN103245114A (en) * | 2013-04-22 | 2013-08-14 | 海宁伊满阁太阳能科技有限公司 | Embedded pressure reduction idle sunning protector for heat collecting element with heat fins and vacuum heat pipe |
-
2012
- 2012-05-18 CN CN2012202261163U patent/CN202630478U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225892A (en) * | 2013-04-22 | 2013-07-31 | 施侃超 | Pressure reducing air sunning protecting all-glass vacuum heat pipe solar heat collection device |
| CN103245114A (en) * | 2013-04-22 | 2013-08-14 | 海宁伊满阁太阳能科技有限公司 | Embedded pressure reduction idle sunning protector for heat collecting element with heat fins and vacuum heat pipe |
| CN103245114B (en) * | 2013-04-22 | 2015-04-15 | 应盼 | Embedded pressure reduction idle sunning protector for heat collecting element with heat fins and vacuum heat pipe |
| CN103225892B (en) * | 2013-04-22 | 2016-01-20 | 施侃超 | Decompression empty sun protection all-glass vacuum hot pipe solar heat collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20140518 |