CN201318814Y - Coaxial telescoping U-shaped thermal collecting tube - Google Patents
Coaxial telescoping U-shaped thermal collecting tube Download PDFInfo
- Publication number
- CN201318814Y CN201318814Y CNU2008201681236U CN200820168123U CN201318814Y CN 201318814 Y CN201318814 Y CN 201318814Y CN U2008201681236 U CNU2008201681236 U CN U2008201681236U CN 200820168123 U CN200820168123 U CN 200820168123U CN 201318814 Y CN201318814 Y CN 201318814Y
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- CN
- China
- Prior art keywords
- tube
- sleeve pipe
- outer tube
- pipe
- casing
- 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
Links
- 239000011521 glass Substances 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
- F24S10/45—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/70—Sealing means
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Insulation (AREA)
Abstract
The utility model discloses a coaxial telescoping U-shaped thermal collecting tube, wherein one end of the inner tube of a casing is connected with a first flange; the outer tube of the casing is sheathed outside the casing; the other end of the inner tube of the casing is communicated with the outer tube of the casing; the connecting end of the inner tube of the casing and the outer tube thereof is connected with one end of a steam outlet pipe; the other end of the steam outlet pipe is connected with a second flange; an U-shaped vacuum glass tube is sheathed outside the outer tube of the casing and is fixed outside the outer tube of the casing by a thermal-resistance fixed seal; one end of a metal sheath casing is fixed on the thermal-resistance fixed seal by a fixed bolt and a big washer, while a rubber seal ring is embedded between a groove at the other end of the metal sheath casing and the U-shaped vacuum glass tube. The thermal collecting tube transfers the absorbed thermal to devices in need of thermal energy with high efficiency; the whole thermal collecting tube has high efficiency, simple structure and low production cost, and can be used in large area and lower the production cost of the whole set of solar thermal collecting system, so as to provide the possibility for popularizing the utilization of medium-and-high temperature of solar energy.
Description
Technical field
The utility model relates to U type thermal-collecting tube, relates in particular to a kind of coaxial sleeve tube U type thermal-collecting tube.
Background technology
High-temperature steam was to use straight-through thermal-collecting tube mostly during overseas utilization solar energy produced, and to be liquid flow to the other end by an end of thermal-collecting tube to the course of work of this thermal-collecting tube, and thermal-collecting tube absorbs the sunlight heating working medium, finally produces steam in outlet.But this system exists the welding procedure of following problem (1) glass and steel still immature, and yield rate is low, and price is high; (2) need to add bellows at two ends, complex structure in order to solve the steel problem different with the glass swelling coefficient; (3) in order to reduce convection losses between glass tube and the collector metal pipe, to be evacuated between glass and the metal tube, high to sealing requirements.Traditional U type pipe also has application at present, but also exists a large amount of problems: (1) because the internal diameter of glass tube with vacuum is fixed, so the external diameter of every metal tube of traditional U type pipe can not surpass vacuum tube half, general caliber is less, flow resistance is big; (2) because caliber is less, and extended distance is longer, and it is not enough to form rigidity easily, end rides against and causes the vacuum glass tracheal rupture on the glass tube with vacuum; (3) mouth of pipe is not easy sealing.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of yield rate height, simple in structure, low cost are provided, and is convenient to the coaxial sleeve tube U type thermal-collecting tube that large tracts of land is promoted.
Coaxial sleeve tube U type thermal-collecting tube comprises first flange, pipe in the sleeve pipe, the sleeve pipe outer tube, metal casing, large washer, support member, rubber seal, heat-resisting fixing seals, U type glass tube with vacuum, steam (vapor) outlet, second flange, set bolt, an end of pipe is connected with first flange in the sleeve pipe, sleeve pipe outer tube sleeve tube outside in sleeve pipe, the other end of pipe communicates with the sleeve pipe outer tube in the sleeve pipe, the sleeve pipe outer tube is connected with an end of steam outlet pipe with the link of the interior pipe of sleeve pipe, the other end of steam outlet pipe is connected with second flange, U type glass tube with vacuum is enclosed within the outer tube outside of sleeve pipe, and be fixed on the outer tube outside of sleeve pipe by heat-resisting fixing seals, one end of metal casing is fixed on the heat-resisting fixing seals by set bolt and large washer, is embedded with rubber seal between the groove of the other end of metal casing and the U type glass tube with vacuum.
Pipe is a coaxial arrangement with the sleeve pipe outer tube in the described sleeve pipe, is provided with support member between the pipe in sleeve pipe outer tube end and the sleeve pipe, and the position of sleeve pipe outer tube and U type glass tube with vacuum is a coaxial arrangement.The cross section of heat-resisting fixing seals is a stairstepping.
The utility model is the sleeve pipe coaxial arrangement of two different-diameters, be coated with the sunshine absorber coatings at outer tube outer wall, the maximum focusing light belt that allows like this is the cross section at the diameter place of outer tube just, avoided having reduced the cost of whole system because the significantly increase of the focusing system cost that focuses on light belt and bring is controlled in strictness.The sectional area of inside and outside two passages of coaxial sleeve structure is compared with traditional U type pipe and is twice, and has improved the uniformity in flow field simultaneously, has significantly reduced flow resistance, has improved heat transfer efficiency.In addition, this structure adopts two standard size steel pipes, and the raw material ratio is easier to buy, and easy to process, cost is also lower, for the scale of elevated temperature heat utilization in the solar energy provides possibility.
Description of drawings
Fig. 1 is that the master of the utility model coaxial sleeve tube U type thermal-collecting tube structure looks schematic diagram;
Fig. 2 is the view of the utility model coaxial sleeve tube U type thermal-collecting tube on the A-A direction;
Fig. 3 is the schematic diagram of support member of the present utility model;
Among the figure: pipe 2, sleeve pipe outer tube 3, metal casing 4, large washer 5, support member 6, rubber seal 7, temperature resistant encapsulation fixture 8, U type glass tube with vacuum 9, steam outlet pipe 10, second flange 11, set bolt 12 in first flange 1, the sleeve pipe.
The specific embodiment
As Fig. 1,2, shown in 3, coaxial sleeve tube U type thermal-collecting tube comprises first flange 1, pipe 2 in the sleeve pipe, sleeve pipe outer tube 3, metal casing 4, large washer 5, support member 6, rubber seal 7, heat-resisting fixing seals 8, U type glass tube with vacuum 9, steam (vapor) outlet 10, second flange 11, set bolt 12, an end of pipe 2 is connected with first flange 1 in the sleeve pipe, sleeve pipe outer tube 3 is enclosed within pipe 2 outsides in the sleeve pipe, the other end of pipe 2 communicates with sleeve pipe outer tube 3 in the sleeve pipe, sleeve pipe outer tube 3 is connected with an end of steam outlet pipe 10 with the link of the interior pipe 2 of sleeve pipe, the other end of steam outlet pipe is connected with second flange 11, U type glass tube with vacuum 9 is enclosed within sleeve pipe outer tube 3 outsides, and be fixed on sleeve pipe outer tube 3 outsides by heat-resisting fixing seals 8, one end of metal casing 4 is fixed on the heat-resisting fixing seals 8 by set bolt 12 and large washer 5, is embedded with rubber seal 7 between the groove of the other end of metal casing 4 and the U type glass tube with vacuum 9.
The utility model is to use this novel structure of coaxial sleeve to improve the Flow Field Distribution of solar energy heating tube fluid, improves the collecting efficiency of solar energy heat collection pipe and the cost that reduces solar thermal collection system.The interior pipe of coaxial sleeve tube U type thermal-collecting tube is generally as the pipe that enters of cryogen, the outer tube of coaxial sleeve tube U type thermal-collecting tube is generally as the effuser of high temperature fluid, in addition, the outer wall of outer tube scribbles solar energy absorbing coating and is used to absorb sunshine and produces heat and transfer heat to working medium in the pipe.The flow direction of whole coaxial sleeve tube U type thermal-collecting tube working medium in the pipe in work is as follows: the system that cryogenic fluid is connected by the outside through flange flows into an end of pipe in the sleeve pipe, the whole interior pipe of flowing through is again flowed out by an other end, the break-in of the dome-type flow-guiding structure of process outer tube tube ends, walk around inner tubal wall and enter the sleeve pipe outer tube, the radiant energy that outer tube wall absorbs solar energy changes heat into, heat through tube wall is transmitted to the interior working medium of sleeve pipe outer tube, the heating intraductal working medium becomes steam, is flowed out by steam outlet pipe and flange at last.
Whole thermal-collecting tube mainly comprises thermal-arrest and two modules of conducting heat, and heat collecting module mainly is made up of U type glass tube with vacuum, metal casing, temperature resistant encapsulation fixture, sealing ring.Heat transfer module mainly is made up of pipe, flange in sleeve pipe outer tube, the sleeve pipe.The degree of depth that pipe is deep into sleeve pipe outer tube inside in the sleeve pipe must have certain size, with leave enough spaces can make the working medium fluid can be smoothly by and do not influence mobile.
The use of the utility model coaxial sleeve tube U type thermal-collecting tube mainly is to be used in combination the evaporator section that constitutes heat pipe with the loop type gravity assisted heat pipe, and the mouth of pipe height of U type pipe will suitably be higher than the bottom in the time of use, in order to avoid produce air-resistance phenomenon.
The main diabatic process of the utility model coaxial sleeve tube U type thermal-collecting tube inside is as follows: solar energy sees through the dual-layer vacuum glass of U type glass tube with vacuum, sub-fraction is fallen by glass refraction and absorption loss water, major part shines on the coating of sleeve pipe outer tube outer wall and is converted into heat, this part heat part is lost in the environment through the heat convection of air between radiation heat transfer and U type glass tube with vacuum and the sleeve pipe outer tube, another part is delivered on the inwall of sleeve pipe outer tube through the heat of sleeve pipe outer tube, be delivered in the working medium fluid through heat convection and radiation heat transfer again, the heat part that the working medium fluid obtains is delivered in the steam through phase-change heat-exchange, a part is delivered on the outer wall of inner tube through heat convection and radiation heat transfer with the sleeve pipe outer wall of inner tube in addition, be delivered on the sleeve pipe inner tube wall through overheated conduction again, be delivered in the working medium fluid of interior pipe through heat convection and radiation heat transfer again.
Claims (3)
1. coaxial sleeve tube U type thermal-collecting tube, it is characterized in that comprising first flange (1), pipe (2) in the sleeve pipe, sleeve pipe outer tube (3), metal casing (4), large washer (5), support member (6), rubber seal (7), heat-resisting fixing seals (8), U type glass tube with vacuum (9), steam (vapor) outlet (10), second flange (11), set bolt (12), an end of pipe (2) is connected with first flange (1) in the sleeve pipe, sleeve pipe outer tube (3) is enclosed within pipe (2) outside in the sleeve pipe, the other end of pipe (2) communicates with sleeve pipe outer tube (3) in the sleeve pipe, sleeve pipe outer tube (3) is connected with an end of steam outlet pipe (10) with the link of the interior pipe of sleeve pipe (2), the other end of steam outlet pipe is connected with second flange (11), U type glass tube with vacuum (9) is enclosed within sleeve pipe outer tube (3) outside, and be fixed on sleeve pipe outer tube (3) outside by heat-resisting fixing seals (8), one end of metal casing (4) is fixed on the heat-resisting fixing seals (8) by set bolt (12) and large washer (5), is embedded with rubber seal (7) between the groove of the other end of metal casing (4) and the U type glass tube with vacuum (9).
2. a kind of coaxial sleeve tube U type thermal-collecting tube according to claim 1, it is characterized in that pipe (2) is a coaxial arrangement with sleeve pipe outer tube (3) in the described sleeve pipe, be provided with support member (6) between the pipe (2) in sleeve pipe outer tube (3) end and the sleeve pipe, sleeve pipe outer tube (3) is a coaxial arrangement with the position of U type glass tube with vacuum (9).
3. a kind of coaxial sleeve tube U type thermal-collecting tube according to claim 1, the cross section that it is characterized in that described heat-resisting fixing seals (8) is a stairstepping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201681236U CN201318814Y (en) | 2008-11-27 | 2008-11-27 | Coaxial telescoping U-shaped thermal collecting tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201681236U CN201318814Y (en) | 2008-11-27 | 2008-11-27 | Coaxial telescoping U-shaped thermal collecting tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318814Y true CN201318814Y (en) | 2009-09-30 |
Family
ID=41197578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201681236U Expired - Fee Related CN201318814Y (en) | 2008-11-27 | 2008-11-27 | Coaxial telescoping U-shaped thermal collecting tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318814Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374670A (en) * | 2011-10-19 | 2012-03-14 | 浙江大学 | Heat-transferring improved U-shaped solar heat-collecting pipe |
| WO2012176007A1 (en) * | 2011-06-24 | 2012-12-27 | Baszun Jerzy | Solar collector |
| CN114033911A (en) * | 2021-09-23 | 2022-02-11 | 中材(北京)地热能科技有限公司 | Four-to-two communication device |
-
2008
- 2008-11-27 CN CNU2008201681236U patent/CN201318814Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012176007A1 (en) * | 2011-06-24 | 2012-12-27 | Baszun Jerzy | Solar collector |
| CN102374670A (en) * | 2011-10-19 | 2012-03-14 | 浙江大学 | Heat-transferring improved U-shaped solar heat-collecting pipe |
| CN114033911A (en) * | 2021-09-23 | 2022-02-11 | 中材(北京)地热能科技有限公司 | Four-to-two communication device |
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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: 20090930 Termination date: 20111127 |