CN202955889U - Vacuum solar heat collecting tube with two-way glass-metal melting-sealed-type heat tube - Google Patents
Vacuum solar heat collecting tube with two-way glass-metal melting-sealed-type heat tube Download PDFInfo
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- CN202955889U CN202955889U CN 201220559866 CN201220559866U CN202955889U CN 202955889 U CN202955889 U CN 202955889U CN 201220559866 CN201220559866 CN 201220559866 CN 201220559866 U CN201220559866 U CN 201220559866U CN 202955889 U CN202955889 U CN 202955889U
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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
Abstract
The utility model discloses a vacuum solar heat collecting tube with a two-way glass-metal melting-sealed-type heat tube. The vacuum solar heat collecting tube comprises a glass tube, the heat tube, a decalescent plate and a support. The decalescent plate is fixed in the glass tube through the support and is connected with the heat tube. One end of the glass tube is connected with the heat tube through a metal connector, and the other end of the glass tube is connected with the heat tube through another metal connector; the metal connectors at two ends are inserted into a wall of the glass tube, so that glass are melted and sealed on both of an inner wall and an outer wall of the metal connectors at connecting positions. By the structure of the vacuum solar heat collecting tube with the two-way glass-metal melting-sealed-type heat tube, quality and intensity of the glass-metal melting and sealing can be remarkably improved, and pulling resistant performance of the connecting position of the glass and the metal is improved. Meanwhile, the metal-glass type vacuum solar heat collecting tube is of the two-way structure, so that heat conduction efficiency of the vacuum heat collecting tube can be improved, and the vacuum solar heat collecting tube has the advantages of simple structure, fast temperature rise, damage resistance and the like.
Description
Technical field
The utility model belongs to field of solar energy utilization, particularly a kind of bilateral glass-metal fused-sealing type heat-tube vacuum solar collector pipe.
Background technology
The vacuum heat collection pipe solar thermal collector grows up on the flat-plate solar heat collector basis, is a kind of new type solar collecting device.Material according to absorber is classified, and vacuum heat collection pipe can be divided into glass absorber vacuum heat collection pipe (or being called all-glass vacuum thermal-collecting tube) and VACUUM HEAT TUBE WITH METALLIC HEAT ABSORBER (or being called the glass-metal vacuum heat collection pipe) two large classes.VACUUM HEAT TUBE WITH METALLIC HEAT ABSORBER is quite ripe since the eighties development in last century, and especially glass-to-metal seal formula heat-tube vacuum solar collector pipe, announced national standard in 2005, and implement on November 1st, 2005.Glass-to-metal seal formula heat-tube vacuum solar collector pipe is to utilize the heat pipe of glass-to-metal seal under vacuum state, and by the tubulose solar energy heating device of heat pipe transferring energy, heat pipe, the absorber plate that scribbles solar selective absorbing coating, evaporable air-absorbing agent and glass tube etc., consist of, wherein heat pipe comprises again evaporator section and condensation segment.Heat pipe closely is connected with absorber plate, and by metal connection parts and glass tube sealing-in.Support is keeping the relative position of absorber plate in glass tube.During the work of glass-to-metal seal formula heat-tube vacuum solar collector pipe, solar radiation projects on the metal absorber plate through after glass tube.Absorber plate absorbs solar radiant energy and is converted into heat energy, then conduction vaporizes rapidly the liquid working substance in heat pipe evaporator section to the heat pipe of combining closely in the middle of the metal absorber plate.After working substance steam rises to heat pipe condenser section, on colder inner surface, condense, discharge evaporation latent heat, transfer heat to the heat-transfer working medium in the thermal-arrest box.Liquid refrigerant after condensing relies on the gravity current of himself to get back to evaporator section, then repeats said process.Utility model patent (Granted publication CN 201740293 U) has been announced above-mentioned glass-to-metal seal formula solar vacuum heat-collecting pipe, at least one end of glass tube is fixedly connected with the kovar alloy metal connection parts, the junction glass tube external diameter is less than the middle part external diameter, but still be far longer than the metal connection parts external diameter, dock with metal end and form the single face sealing by fusing by the glass tube end face, the tensile property of glass and metal junction is poor.
Glass and metal single face sealing by fusing have two kinds of modes, and a kind of is flame method, and first by METAL HEATING PROCESS, and then heating glass, waiting can be at glass tube together with sealing by fusing on the metal end contact-making surface after the softening or fusing of glass.The tensile property that this structure is connected with metal glass requires lower, can not produce larger pulling force between glass tube and metal end, otherwise will rupture.Another glass and metal connected mode adopt the hot pressing envelope, Chinese patent CN1262248A has proposed a kind of glass and metal fever press seal technique, it belongs to the Solid State Welding of Material technology, usually the solid-state scolder of low melting point is placed between metal end and glass tube flange as lead or aluminium, solid-state scolder is heated to when softening, utilize cylinder to apply surge to metal end rapidly, and then interatomic phase counterdiffusion occurs realize that glass is connected with metal, reaching seal request, is equally also the flat envelope of single face.
The tensile property in first kind of way, glass is connected with metal requires lower, can not produce larger pulling force between glass tube and metal end, otherwise will rupture, and operation is difficult to control.Owing to adopting low-melting scolder, be subject to the restriction of serviceability temperature, and tensile property is affected by processing technology in the second way.
The utility model content
The purpose of this utility model is the defect for above-mentioned prior art, and a kind of quality and intensity that improves glass and metal sealing by fusing is provided, and is conducive to improve the bilateral glass-metal fused-sealing type heat-tube vacuum solar collector pipe of the heat transfer efficiency of vacuum heat collection pipe.
The technical scheme that the utility model is taked to achieve these goals is:
A kind of bilateral glass-metal fused-sealing type heat-tube vacuum solar collector pipe, comprise glass tube, heat pipe, absorber plate and support, described absorber plate is fixed in described glass tube by support, described heat pipe is connected with described absorber plate, described glass tube one end is connected with described heat pipe by metal connection parts, the other end also is connected with described heat pipe by metal connection parts, the described metal connection parts at two ends inserts in the tube wall of corresponding described glass tube, makes on the inside and outside wall of described metal connection parts of junction all sealings by fusing that glass is arranged.
Described heat pipe comprises heat pipe condenser section and the heat pipe evaporator section be connected, and described heat pipe evaporator section is positioned at described glass tube, and described heat pipe evaporator section two ends connect heat pipe condenser section, and described heat pipe condenser section is positioned at outside described glass tube.
Described heat pipe is the both ends open formula, comprises heat pipe evaporator section.
Described metal connection parts is metal sleeve, with the tube wall of the described metal sleeve of described glass tube junction be slope shape, its tube wall reduces gradually towards an end that connects described glass tube.
Described metal connection parts is cylindrical.
The material of described metal connection parts is copper.
The beneficial effect of the technical scheme that the utility model embodiment provides is:
Adopt structure of the present utility model, can significantly improve quality and the intensity of glass and metal sealing by fusing, increase the tensile property of glass and metal junction.Simultaneously metal-glass type solar vacuum heat-collecting pipe of the present utility model adopts dual channel structure, is conducive to improve the heat transfer efficiency of vacuum heat collection pipe, have simple in structure, quick heating, the not advantage such as cracky.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below will the accompanying drawing used in embodiment be briefly described, apparently, below listed accompanying drawing be only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is a kind of bilateral glass-metal fused-sealing type heat-tube vacuum solar collector pipe schematic diagram that the utility model embodiment provides;
Fig. 2 is the another kind of bilateral glass-metal fused-sealing type heat-tube vacuum solar collector pipe schematic diagram that the utility model embodiment provides;
Fig. 3 is metal connection parts and the glass tube connection diagram that the utility model embodiment provides.
In accompanying drawing, the component list of each label representative is as follows:
The 1-heat pipe condenser section; The 2-metal connection parts; The 3-heat pipe evaporator section; The 4-glass tube; The 5-absorber plate; The 6-support; The 7-getter.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Referring to Fig. 1, a kind of bilateral glass-metal fused-sealing type heat-tube vacuum solar collector pipe, comprise glass tube 4, heat pipe, absorber plate 5 and support 6, absorber plate 5 is fixed in glass tube 4 by support 6, heat pipe comprises two heat pipe condenser sections 1 and two heat pipe evaporator sections 3, two heat pipe evaporator sections 3 are positioned at glass tube 4, heat pipe evaporator section 3 connects respectively heat pipe condenser section 1, two heat pipe condenser sections 1 are positioned at outside glass tube 4, heat pipe evaporator section 3 is connected with absorber plate 5, glass tube 4 one ends are connected with heat pipe condenser section 1 by metal connection parts 2, the other end also is connected with heat pipe by metal connection parts 2, metal connection parts 2 one ends at two ends insert in the tube wall of glass tube 4, make on the inside and outside wall of metal connection parts 2 of junction all sealings by fusing that glass is arranged.
The utility model metal connection parts two ends all adopt the heat-sealable mode of horizontal type double-side, to on glass lathe, coaxially align through metal connection parts and the glass tube of cleaning treatment, adopt the flame processing method, in air, the sealing by fusing place is carried out to pre-oxidation treatment, by the glass tube round head undergauge, diameter is identical with metal connecting piece, the glass tube end face aligns and contacts with the metal connecting piece end face, then utilize flame to glass tube heating, after the glass tube contact portion is softened or melted, slowly the metal connection parts pipe is inserted into again in glass wall and forms the Double-side hot sealing by fusing; Then cooling, after glass solidifies, annealing at once, complete the heat-sealable of glass and metal.In whole process, glass tube keeps synchronizeing Concentric rotation with metal connection parts.Described Double-side hot sealing by fusing, be about to thin-walled transition metal pipe and be inserted in glass tube walls, and on the inside and outside wall at the heat-sealable place of transition metal pipe, equal sealing by fusing has glass.Because the tensile property of glass and metal fever sealing by fusing depends on suffered pulling force size and sealing by fusing area, identical pulling force, sealing by fusing area more tensile property is better, and the sealing by fusing area of the Double-side hot sealing by fusing of glass and metal is far longer than the flat envelope of single face, therefore, the tensile strength of Double-side hot sealing by fusing is better, and the Double-side hot sealing by fusing is with respect to flat envelope, air-tightness is also better, and the life-span is long.
Referring to Fig. 2, the heat pipe of the present embodiment is the both ends open formula, only comprises heat pipe evaporator section 3.Heat pipe closely is connected with 5 absorber plates 5, and by metal connection parts 2 and glass tube 4 sealing-ins.Support 6 keeps the relative position of absorber plate 5 in glass tube 4.After glass tube 4 vacuumizes, getter 7 adopts nonevaporable getter.When the bilateral glass-metal fused-sealing type heat-tube vacuum solar collector pipe of the present embodiment is worked, solar radiation projects on metal absorber plate 5 through after glass tube 4.Absorber plate 5 absorbs solar radiant energy and is converted into heat energy, then conducts to the heat pipe of combining closely in the middle of metal absorber plate 5, and the liquid working substances in heat pipe evaporator section 3 are vaporized rapidly, transfers heat to the heat-transfer working medium in the thermal-arrest box.Liquid refrigerant after condensing relies on the gravity current of himself to get back to evaporator section, then repeats said process.
Referring to Fig. 3, the present embodiment is on the basis of above-described embodiment, and metal connection parts 2 is metal sleeve, with the tube wall of the metal sleeve of glass tube 4 junctions be slope shape, its tube wall reduces gradually towards an end that connects glass tube 4.Be that wall thickness is slope shape, reduce gradually to the sealing by fusing direction, minimum with the glass head seal position.Metal connection parts is cylindrical.The material of described metal connection parts is preferably copper.
This connected mode of the present embodiment can be alleviated the metal material problems that cause different from the glass swelling coefficient.
Referring to Fig. 1, heat pipe of the present utility model closely is connected with absorber plate 5, and by metal connection parts 2 and glass tube 4 sealing-ins.Support 6 keeps the relative position of absorber plate 5 in glass tube 4.After glass tube 4 vacuumizes, getter 7 adopts evaporable air-absorbing agent to be evapotranspired, and in glass tube part inner wall surface, forms air-breathing minute surface.Getter 7 is arranged on the back side of absorber plate 5.During the work of bilateral glass-metal fused-sealing type heat-tube vacuum solar collector pipe, solar radiation projects on metal absorber plate 5 through after glass tube 4.Absorber plate 5 absorbs solar radiant energy and is converted into heat energy, then conduction vaporizes rapidly the liquid working substances in heat pipe evaporator section 3 to the heat pipe of combining closely in the middle of metal absorber plate 5.After working substance steam rises to heat pipe condenser section 1, on colder inner surface, condense, discharge evaporation latent heat, transfer heat to the heat-transfer working medium in the thermal-arrest box.Liquid refrigerant after condensing relies on the gravity current of himself to get back to evaporator section, then repeats said process.
It is horizontal heat-sealable that the utility model utilizes the flame heating to carry out, its glass adopts Double-side hot sealing by fusing technique to be connected with metal connection parts, not only technique is simple, labour intensity is low, craft precision is easily controlled, can also significantly improve quality and the intensity of glass and metal sealing by fusing, increase the tensile property of glass and metal junction.Adopt dual channel structure, be conducive to improve the heat transfer efficiency of vacuum heat collection pipe, have simple in structure, quick heating, the not advantage such as cracky.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a bilateral glass-metal fused-sealing type heat-tube vacuum solar collector pipe, comprise glass tube, heat pipe, absorber plate and support, described absorber plate is fixed in described glass tube by support, described heat pipe is connected with described absorber plate, it is characterized in that, described glass tube one end is connected with described heat pipe by metal connection parts, the other end also is connected with described heat pipe by metal connection parts, the described metal connection parts at two ends inserts in the tube wall of corresponding described glass tube, makes on the inside and outside wall of described metal connection parts of junction all sealings by fusing that glass is arranged.
2. bilateral glass-metal fused-sealing type heat-tube vacuum solar collector pipe according to claim 1, it is characterized in that, described heat pipe comprises heat pipe condenser section and the heat pipe evaporator section be connected, described heat pipe evaporator section is positioned at described glass tube, described heat pipe evaporator section two ends connect heat pipe condenser section, and described heat pipe condenser section is positioned at outside described glass tube.
3. bilateral glass-metal fused-sealing type heat-tube vacuum solar collector pipe according to claim 1, is characterized in that, described heat pipe is the both ends open formula, comprises heat pipe evaporator section.
4. bilateral glass-metal fused-sealing type heat-tube vacuum solar collector pipe according to claim 1, it is characterized in that, described metal connection parts is metal sleeve, with the tube wall of the described metal sleeve of described glass tube junction be slope shape, its tube wall reduces gradually towards an end that connects described glass tube.
5. bilateral glass-metal fused-sealing type heat-tube vacuum solar collector pipe according to claim 1, is characterized in that, described metal connection parts is cylindrical.
6. according to the described bilateral glass-metal of claim 1-5 any one fused-sealing type heat-tube vacuum solar collector pipe, it is characterized in that, the material of described metal connection parts is copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220559866 CN202955889U (en) | 2012-10-29 | 2012-10-29 | Vacuum solar heat collecting tube with two-way glass-metal melting-sealed-type heat tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220559866 CN202955889U (en) | 2012-10-29 | 2012-10-29 | Vacuum solar heat collecting tube with two-way glass-metal melting-sealed-type heat tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202955889U true CN202955889U (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220559866 Expired - Fee Related CN202955889U (en) | 2012-10-29 | 2012-10-29 | Vacuum solar heat collecting tube with two-way glass-metal melting-sealed-type heat tube |
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| Country | Link |
|---|---|
| CN (1) | CN202955889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429121A (en) * | 2021-07-26 | 2021-09-24 | 江伦 | Glass tube necking inward-turning flange and manufacturing method and equipment thereof |
-
2012
- 2012-10-29 CN CN 201220559866 patent/CN202955889U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429121A (en) * | 2021-07-26 | 2021-09-24 | 江伦 | Glass tube necking inward-turning flange and manufacturing method and equipment thereof |
| CN113429121B (en) * | 2021-07-26 | 2022-08-05 | 江伦 | Glass tube necking inward-turning flange and manufacturing method and equipment thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20151029 |
|
| EXPY | Termination of patent right or utility model |