CN202835861U - Vacuum-changeable vacuum fin plate heat-collecting tube with air-drying protection function - Google Patents
Vacuum-changeable vacuum fin plate heat-collecting tube with air-drying protection function Download PDFInfo
- Publication number
- CN202835861U CN202835861U CN2012202316575U CN201220231657U CN202835861U CN 202835861 U CN202835861 U CN 202835861U CN 2012202316575 U CN2012202316575 U CN 2012202316575U CN 201220231657 U CN201220231657 U CN 201220231657U CN 202835861 U CN202835861 U CN 202835861U
- Authority
- CN
- China
- Prior art keywords
- vacuum
- glass tube
- collecting tube
- inner glass
- fin plate
- 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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Classifications
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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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- Thermal Insulation (AREA)
Abstract
Provided is a vacuum-changeable vacuum fin plate heat-collecting tube with air-drying protection function. An inner glass tube (1) of the vacuum heat-collecting tube is made by concentrically sealing the inner glass tube (1) and a covering glass tube (2), a fin plate (3) made of a sheet metal is connected with the inner glass tube (1) through a low-thermal resistor, and thus the vacuum fin plate heat-collecting tube is manufactured. The vacuum-changeable vacuum fin plate heat-collecting tube with air-drying protection function is characterized in that a surface which does not face sunlight of the inner glass tube (1) is connected with a piece of absorbing material (4) or several pieces of the absorbing material. The absorbing material (4) is reversible that when temperature is above a certain temperature, the absorbing material (4) conducts desorbing and releases gas; when temperature is below a certain temperature, the absorbing material (4) conducts absorbing and absorbs gas. The vacuum-changeable vacuum fin plate heat-collecting tube with air-drying protection function has the advantages that the absorbing material (4) is connected with the surface which does not face sunlight of the inner glass tube (1); the heat-collecting tube through the low thermal resistance and working medium of a heat pipe is water. When stagnation temperature is confined to 160 DEG C, vapour pressure reaches 6 atmospheric pressures which reduces by almost 80 percent compared with an almost 29 atmospheric pressures when original stagnation temperature is 230 DEG C.
Description
Technical field
The utility model relates to changable vacuum degree empty sun protection vacuum finned thermal-collecting tube.
Background technology
Existing all-glass vacuum thermal-collecting tube, the solar energy collection tube that comprises heat pipe and the integrated making of inner glass tube, have high absorptivity and extremely low emissivity, when obtaining gratifying solar collecting performance and heat-collecting temperature, the air drying temperature is reached more than 230 ℃.High like this air drying temperature is brought the too high danger of heat-pipe working medium vapour pressure of integrated making.
Summary of the invention
The purpose of this utility model is that the anti-air drying vacuum finned of high emissivity thermal-collecting tube will be provided.
The technical scheme in the invention for solving the technical problem: by on the inner glass tube of a vacuum heat collection pipe that concentric sealing-in is made by inner glass tube and cover glass tube, low thermal resistance connects the wing plate that a sheet metal is made; Non-side to light low thermal resistance at described inner glass tube connects a sorbing material, and perhaps some sorbing materials are made a changable vacuum degree empty sun protection vacuum finned thermal-collecting tube.Described sorbing material is reversible, and namely when being higher than uniform temperature, described sorbing material generation desorb is also sent gas; When being lower than uniform temperature, absorption occurs and absorbs gas in described sorbing material.
Can also adopt the glass heat pipe with the integrated making of inner glass tube.
The beneficial effects of the utility model: the non-side to light low thermal resistance at the all-glass vacuum thermal-collecting tube inner glass tube connects one or some sorbing materials; When air drying, gas is sent in described 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 by environment.Thereby the air drying temperature that has limited heat collecting element further raises.When using water as heat-pipe working medium, when the air drying temperature was restricted to 160 ℃, vapour pressure was 6 atmospheric pressure, reduced closely 4/5ths than 29 atmospheric pressure nearly of 230 ℃ of script air drying temperature, and the anti-air drying ability of described vacuum finned thermal-collecting tube is significantly strengthened.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the composite construction schematic diagram of a changable vacuum degree empty sun protection vacuum finned thermal-collecting tube.
1. inner glass tubes among the figure; 2. cover glass tube; 3. wing plate; 4. sorbing material; 5. cold junction.
The specific embodiment
Fig. 1 provides an embodiment of the present utility model.
Among Fig. 1, by on an inner glass tube 1 by the vacuum heat collection pipe of inner glass tube 1 and cover glass tube 2 concentric sealing-ins manufacturings, low thermal resistance connects the wing plate 3 that a sheet metal is made; Deposit selective absorbing film on wing plate 3 sides to light.At the non-side to light of wing plate 3, connect the activated carbon fiber adsorbing material 4 of 200 millimeters of block lengths with the wire circlip low thermal resistance.Inner glass tube 1 melt the envelope place stretch out one section and the sealing, a heat pipe is made in inner glass tube 1 inner vacuum pumping loading working medium and sealed-off.
The operation principle of Fig. 1 embodiment: sunlight passes cover glass tube 2 and is converted to heat energy at wing plate 3 front retes, and these heat energy are working medium and 5 outputs of heat pipe cold junction of inner glass tube 1, inside heat pipe by wing plate 3, heat pipe hot junction.During normal thermal-arrest, by wing plate 3 back sides not the heat energy of depositional coating radiation seldom can ignore.During air drying, wing plate 3 back sides not depositional coating surface temperature 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, this has just limited the excessive rising of air drying temperature to inner glass tube 1, and makes the steam pressure of inside heat pipe be unlikely to too high by the gas in the vacuum heat-insulating layer 3.
Claims (2)
1. changable vacuum degree empty sun protection vacuum finned thermal-collecting tube, by on the inner glass tube of a vacuum heat collection pipe that concentric sealing-in is made by inner glass tube and cover glass tube, low thermal resistance connects the wing plate of a sheet metal making and makes, it is characterized in that connecting a sorbing material, perhaps some sorbing materials at the non-side to light low thermal resistance of described inner glass tube; Described sorbing material is reversible, and namely when being higher than uniform temperature, described sorbing material generation desorb is also sent gas; When being lower than uniform temperature, absorption occurs and absorbs gas in described sorbing material.
2. changable vacuum degree empty sun protection vacuum finned thermal-collecting tube according to claim 1 is characterized in that described sorbing material is the NACF of 200 millimeters of block lengths.
3. changable vacuum degree empty sun protection vacuum finned thermal-collecting tube 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 |
|---|---|---|---|
| CN2012202316575U CN202835861U (en) | 2012-05-18 | 2012-05-18 | Vacuum-changeable vacuum fin plate heat-collecting tube with air-drying protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202316575U CN202835861U (en) | 2012-05-18 | 2012-05-18 | Vacuum-changeable vacuum fin plate heat-collecting tube with air-drying protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202835861U true CN202835861U (en) | 2013-03-27 |
Family
ID=47947552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202316575U Expired - Fee Related CN202835861U (en) | 2012-05-18 | 2012-05-18 | Vacuum-changeable vacuum fin plate heat-collecting tube with air-drying protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202835861U (en) |
Cited By (3)
| 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 |
| CN103225918A (en) * | 2013-04-22 | 2013-07-31 | 海宁伊满阁太阳能科技有限公司 | Pressure reducing air sunning fin-plate heat pipe vacuum heat collection component |
| CN103423901A (en) * | 2012-05-18 | 2013-12-04 | 施侃超 | Vacuum heat collecting tube with variable-vacuum-degree idle sunning protection and fin plate |
-
2012
- 2012-05-18 CN CN2012202316575U patent/CN202835861U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423901A (en) * | 2012-05-18 | 2013-12-04 | 施侃超 | Vacuum heat collecting tube with variable-vacuum-degree idle sunning protection and fin plate |
| 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 |
| CN103225918A (en) * | 2013-04-22 | 2013-07-31 | 海宁伊满阁太阳能科技有限公司 | Pressure reducing air sunning fin-plate heat pipe vacuum heat collection component |
| CN103225918B (en) * | 2013-04-22 | 2015-04-15 | 叶丽英 | Pressure reducing air sunning fin-plate heat pipe vacuum heat collection component |
| 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: 20130327 Termination date: 20140518 |