CN202993623U - Metal heat tube type vacuum solar collector tube utilizing sealing technology - Google Patents
Metal heat tube type vacuum solar collector tube utilizing sealing technology Download PDFInfo
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- CN202993623U CN202993623U CN 201220618365 CN201220618365U CN202993623U CN 202993623 U CN202993623 U CN 202993623U CN 201220618365 CN201220618365 CN 201220618365 CN 201220618365 U CN201220618365 U CN 201220618365U CN 202993623 U CN202993623 U CN 202993623U
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- glass pipe
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- kovar alloy
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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
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Abstract
The utility model provides a metal heat tube type vacuum solar collector tube utilizing the sealing technology and belongs to the technical field of vacuum solar collector tube manufacture. The metal heat tube type vacuum solar collector tube utilizing the sealing technology structurally comprises a flange-shaped kovar alloy matched with a linear expansion coefficient and a transition glass tube, the flange-shaped kovar ally and the front end of the transition glass tube are sealed in a melted mode, and the tail end of the transition glass tube and a neutral borosilicate glass tube are sealed in a melted mode. The metal heat tube type vacuum solar collector tube utilizing the sealing technology is simple in technical process and good in flow-line production; the product pass rate is effectively improved, the production cost is effectively controlled, the product quality is stable and reliable; and meanwhile, the influence of the manufacturing process on environment is effectively controlled, so that the promotion and the application of the metal heat tube type vacuum solar collector tube utilizing the sealing technology are greatly promoted.
Description
Technical field
The utility model relates to solar vacuum heat-collecting pipe Manufacturing Techniques field, specifically a kind of metal fever tubular type solar vacuum heat-collecting pipe of process for sealing.
Background technology
General, solar energy utilization technique just is being widely used in industrial and agricultural production, metal fever tubular type solar vacuum heat-collecting pipe is fast due to thermal starting, heat-collecting temperature is high, non-scaling, bearing operation, heat shock resistance in pipe, to be easy to the advantage such as installation and maintenance quite popular with users, uses increasingly extensive.Yet metal fever tubular type vacuum heat collection pipe must be realized just can realizing vacuumizing in pipe after glass-metal positiver sealing, to reach the Its Relevant Technology Standards such as insulation, high heat-collecting temperature, protection heat absorption band.And existing glass-metal sealing technology technology such as plumbous press seal, aluminium press seal that adopt, these technical matters are complicated, and product percent of pass is low, production cost is high, quality is unreliable, and these metals are difficult to eliminate for the impact of environment simultaneously. moreThis has seriously restricted the promotion and application of metal fever tubular type solar vacuum heat-collecting pipe.
The utility model content
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of metal fever tubular type solar vacuum heat-collecting pipe of process for sealing is provided.
The technical solution of the utility model realizes in the following manner, the metal fever tubular type solar vacuum heat-collecting pipe of this process for sealing, its structure is to adopt Flange-shaped Parts kovar alloy and the transitional glass pipe of linear expansion coefficient coupling, Flange-shaped Parts kovar alloy and transitional glass pipe front end sealing by fusing are after the end of transitional glass pipe and neutral boron silica glass pipe sealing by fusing and get final product.
The coupling of the linear expansion coefficient of described Flange-shaped Parts kovar alloy and transitional glass pipe is: the Flange-shaped Parts kovar alloy adopts and the linear expansion coefficient of transitional glass pipe differs the Flange-shaped Parts kovar alloy of scope between 2%～7% in 0～600 ℃, and the transitional glass pipe adopts and the linear expansion coefficient of neutral boron silica glass pipe differs the transitional glass pipe of scope between 5%～10%.
It is 0.8～1.5mm that the Flange-shaped Parts kovar alloy adopts thickness, and external diameter is 50～120mm, and endoporus is directly 20～45mm, and border width is the Flange-shaped Parts kovar alloy of 8～30mm.
The transitional glass pipe adopts DM308 transitional glass pipe, and the transitional glass length of tube is 30～60mm.
The step of the process for sealing of the metal fever tubular type solar vacuum heat-collecting pipe of this process for sealing is:
1) select kovar alloy and the transitional glass pipe of linear expansion coefficient coupling, first kovar alloy is made into Flange-shaped Parts;
2) then the Flange-shaped Parts kovar alloy first put into 300～600 ℃ remove gas except steam stove, the degasification time is 1～3 hour, then deoils, pickling, annealing, conformality operation;
3) the Flange-shaped Parts kovar alloy was carried out oxidation in 1～30 second with the flame heating and redden, the uniform oxide-film of kovar alloy surface formation one deck;
4) being the Flange-shaped Parts kovar alloy that forms oxide-film and length that the transitional glass pipe of 30～60mm is coaxial aligns 6～10mm in rear insertion transitional glass pipe, then divide with flame burning Flange-shaped Parts kovar alloy and transitional glass pipe jointing part, give simultaneously the heating of Flange-shaped Parts kovar alloy and transitional glass pipe, allow the glass of molten evenly be attached to Flange-shaped Parts kovar alloy outer wall 2～5mm, with graphite jig, transitional glass pipe and Flange-shaped Parts kovar alloy are held tightly together;
5) littlely anneal by flame on the height of anger at 5～10 after Flange-shaped Parts kovar alloy and the sealing-in of transitional glass pipe, annealing time is 2～20 minutes;
6) other end with the transitional glass pipe of the direct sealing by fusing of Flange-shaped Parts kovar alloy is welded together with the neutral boron silica glass pipe, and fusion temp is 550～900 ℃, then anneals with 5～10 little duration and degree of heatings, and annealing time is 2～10 minutes and get final product.
The linear expansion coefficient of described Flange-shaped Parts kovar alloy and transitional glass pipe is complementary, and meet following requirement: in 0～900 ℃ of temperature range, at a uniform temp point, the Flange-shaped Parts kovar alloy adopts and the linear expansion coefficient of transitional glass pipe differs scope between 2%～7%, and the transitional glass pipe adopts and the linear expansion coefficient of neutral boron silica glass pipe differs scope between 5%～10%.
It is 0.8～1.5mm that the Flange-shaped Parts kovar alloy is made into thickness, and external diameter is 50～120mm, and endoporus is directly 20～45mm, and border width is the Flange-shaped Parts kovar alloy of 8～30mm.
The transitional glass pipe adopts DM308 transitional glass pipe, and the transitional glass length of tube is 30～60mm.
The beneficial effect that the utility model compared with prior art produces is:
The metal fever tubular type solar vacuum heat-collecting pipe technical matters of this process for sealing is simple, Production lineization is stronger, product percent of pass significantly improves, its production cost is effectively controlled, stable and reliable product quality, the manufacture craft process obtains very large control for the impact of environment simultaneously, and even impact is very little, effectively promotes the promotion and application of the metal fever tubular type solar vacuum heat-collecting pipe of this process for sealing.
The produced solar vacuum heat-collecting pipe of the metal fever tubular type solar vacuum heat-collecting pipe of this process for sealing is reasonable in design, simple in structure, safe and reliable, easy to use, be easy to safeguard, has good value for applications.
Description of drawings
Accompanying drawing 1 is the structural representation of the glass-metal sealing section of the metal fever tubular type solar vacuum heat-collecting pipe of process for sealing of the present utility model.
Mark in accompanying drawing represents respectively:
1, Flange-shaped Parts kovar alloy, 2, the transitional glass pipe, 3, neutral boron silica glass.
The specific embodiment
The below is described in detail below the metal fever tubular type solar vacuum heat-collecting pipe of process for sealing of the present utility model.
As shown in Figure 1, the metal fever tubular type solar vacuum heat-collecting pipe of process for sealing of the present utility model, its structure is to adopt Flange-shaped Parts kovar alloy 1 and the transitional glass pipe 2 of linear expansion coefficient coupling, Flange-shaped Parts kovar alloy 1 and transitional glass pipe 2 front end sealings by fusing are after the end of transitional glass pipe 2 and neutral boron silica glass pipe 3 sealings by fusing and get final product.The coupling of the linear expansion coefficient of Flange-shaped Parts kovar alloy 1 and transitional glass pipe 2 is: Flange-shaped Parts kovar alloy 1 adopts and the linear expansion coefficient of transitional glass pipe 2 differs the Flange-shaped Parts kovar alloy of scope between 2%～7% in 0～600 ℃, and transitional glass pipe 2 adopts and the linear expansion coefficient of neutral boron silica glass pipe 3 differs the transitional glass pipe of scope between 5%～10%.It is 1.2mm that Flange-shaped Parts kovar alloy 1 adopts thickness, and external diameter is 100mm, and endoporus is directly 40mm, and border width is the Flange-shaped Parts kovar alloy of 20mm.Transitional glass pipe 2 adopts DM308 transitional glass pipe, and the transitional glass length of tube is 50mm.
Claims (4)
1. the metal fever tubular type solar vacuum heat-collecting pipe of process for sealing, it is characterized in that adopting Flange-shaped Parts kovar alloy and the transitional glass pipe of linear expansion coefficient coupling, Flange-shaped Parts kovar alloy and transitional glass pipe front end sealing by fusing are after the end of transitional glass pipe and neutral boron silica glass pipe sealing by fusing and get final product.
2. the metal fever tubular type solar vacuum heat-collecting pipe of process for sealing according to claim 1, the coupling employing that it is characterized in that the linear expansion coefficient of described Flange-shaped Parts kovar alloy and transitional glass pipe is: the Flange-shaped Parts kovar alloy adopts and the linear expansion coefficient of transitional glass pipe differs the Flange-shaped Parts kovar alloy of scope between 2%～7% in 0～600 ℃, and the transitional glass pipe adopts and the linear expansion coefficient of neutral boron silica glass pipe differs the transitional glass pipe of scope between 5%～10%.
3. the metal fever tubular type solar vacuum heat-collecting pipe of process for sealing according to claim 1, it is characterized in that it is 0.8～1.5mm that the Flange-shaped Parts kovar alloy adopts thickness, external diameter is 50～120mm, and endoporus is directly 20～45mm, and border width is the Flange-shaped Parts kovar alloy of 8～30mm.
4. the metal fever tubular type solar vacuum heat-collecting pipe of process for sealing according to claim 1, is characterized in that the transitional glass pipe adopts DM308 transitional glass pipe, and the transitional glass length of tube is 30～60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220618365 CN202993623U (en) | 2012-11-21 | 2012-11-21 | Metal heat tube type vacuum solar collector tube utilizing sealing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220618365 CN202993623U (en) | 2012-11-21 | 2012-11-21 | Metal heat tube type vacuum solar collector tube utilizing sealing technology |
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| Publication Number | Publication Date |
|---|---|
| CN202993623U true CN202993623U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220618365 Expired - Fee Related CN202993623U (en) | 2012-11-21 | 2012-11-21 | Metal heat tube type vacuum solar collector tube utilizing sealing technology |
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| CN (1) | CN202993623U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633971A (en) * | 2015-01-15 | 2015-05-20 | 南京诚远太阳能科技有限公司 | Glass-metal fusion sealing connector for solar vacuum heat collecting tube and manufacturing method thereof |
| CN108529902A (en) * | 2018-03-23 | 2018-09-14 | 内蒙古旭宸能源有限公司 | Solar energy heat collection pipe can cut down the method for sealing with glass |
| CN109273335A (en) * | 2018-09-30 | 2019-01-25 | 汕头高新区聚德医疗科技有限公司 | A kind of metal and glass sealing process of CT bulb |
| CN109682084A (en) * | 2019-02-16 | 2019-04-26 | 深圳市中装新能源科技有限公司 | A kind of glassy metal sealing straight through type all glass vacuum thermal-collecting tube and its processing method |
| CN110553407A (en) * | 2019-09-24 | 2019-12-10 | 陕西宝光真空电器股份有限公司 | Sealing method of outer glass tube for medium-high temperature vacuum heat collecting tube |
| CN111555102A (en) * | 2020-05-12 | 2020-08-18 | 南通斯派特激光科技有限公司 | Glass-metal sealing structure laser tube |
-
2012
- 2012-11-21 CN CN 201220618365 patent/CN202993623U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633971A (en) * | 2015-01-15 | 2015-05-20 | 南京诚远太阳能科技有限公司 | Glass-metal fusion sealing connector for solar vacuum heat collecting tube and manufacturing method thereof |
| CN108529902A (en) * | 2018-03-23 | 2018-09-14 | 内蒙古旭宸能源有限公司 | Solar energy heat collection pipe can cut down the method for sealing with glass |
| CN109273335A (en) * | 2018-09-30 | 2019-01-25 | 汕头高新区聚德医疗科技有限公司 | A kind of metal and glass sealing process of CT bulb |
| CN109682084A (en) * | 2019-02-16 | 2019-04-26 | 深圳市中装新能源科技有限公司 | A kind of glassy metal sealing straight through type all glass vacuum thermal-collecting tube and its processing method |
| CN110553407A (en) * | 2019-09-24 | 2019-12-10 | 陕西宝光真空电器股份有限公司 | Sealing method of outer glass tube for medium-high temperature vacuum heat collecting tube |
| CN111555102A (en) * | 2020-05-12 | 2020-08-18 | 南通斯派特激光科技有限公司 | Glass-metal sealing structure laser tube |
| CN111555102B (en) * | 2020-05-12 | 2022-11-15 | 南通斯派特激光科技有限公司 | Glass-metal sealing structure laser tube |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20191121 |