CN1869543A - Through solar vacuum heat collection pipe - Google Patents
Through solar vacuum heat collection pipe Download PDFInfo
- Publication number
- CN1869543A CN1869543A CNA2005100435767A CN200510043576A CN1869543A CN 1869543 A CN1869543 A CN 1869543A CN A2005100435767 A CNA2005100435767 A CN A2005100435767A CN 200510043576 A CN200510043576 A CN 200510043576A CN 1869543 A CN1869543 A CN 1869543A
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- CN
- China
- Prior art keywords
- glass
- metal
- tube
- sealing
- vacuum heat
- 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.)
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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
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/80—Accommodating differential expansion of solar collector elements
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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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- 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)
- Joining Of Glass To Other Materials (AREA)
Abstract
The invention is a novel straight through solar vacuum heat collection pipe, belonging the design field of solar vacuum heat collection pipes, made by sealing outer and inner glass (metal) pipes through a certain process flow and vacuumizing and welding a bellows in the middle of the inner glass pipe for solving the linear change problem of the inner glass (metal) pipe caused by heat and cold. And it can be more convenient to be used in the application field of connecting in series or in parallel, bearing and nonbearing.
Description
Technical field
What the present invention relates to is a kind of straight-through type solar energy vacuum heat collecting tube structural design field, is a kind of new type solar energy vacuum heat collection pipe in the solar utilizing equipment.
Background technology
At present, solar vacuum heat-collecting pipe is divided into two classes:
1 full-glass solar energy collecting vacuum tube
Existing full-glass solar energy collecting vacuum tube is divided into single-ended opening and dual-end (leading directly to) two classes.
The patent No. 87210032 is a kind ofly to be vacuumized and the single-ended opening full-glass solar energy collecting vacuum tube formed by interior outer glass pipe sealing-in, interior outer tube layer has the absorption of solar energy absorber coatings, the other end of interior pipe is as free end, pipe was because of the cold and hot length variations that causes in its effect was used for regulating, this thermal-collecting tube can not bear elevated pressures, series connection is used inconvenient, only uses among the Wen Wendu in low.
The patent No. 99107429 is a kind of dual-end spiral straight-flow type whole-glass solar vacuum heat-collecting pipes, the glass inner tube skin of this thermal-collecting tube has solar selectively to absorb soil layer, its two ends vacuumize composition with the two ends sealing-in of glass outer tube respectively, wherein an end of interior pipe is the glass helix tube, its objective is and attempt to regulate the length variations that interior Guan Yinqi expands and causes with it, dwindle or eliminate stress,, cause breaking of this thermal-collecting tube because glass is weaker materials.
2 metals---glass solar energy collecting vacuum tube
It is existing that metal---glass solar energy collecting vacuum tube also is divided into single-ended opening and dual-end (leading directly to) two classes.
The patent No. 00221101.7 is a kind of metal of single-ended opening---glass solar vacuum pressure-bearing heat collector is at the double-layer vacuum heat collection tube built-in metal drum that inserts water inlet pipe to be arranged, and the outer wall of metal drum has solar selectively absorbing coating.This heat collector seals between metal drum and dual-layer vacuum glass and is difficult to, and can influence the life-span of solar selectively absorbing coating on the metal drum outer wall.
The patent No. 01224848.7 is a kind of metal of dual-end---the glass straight-through type solar energy vacuum heat collecting tube, these outer tube two ends respectively with outer tube metal cap sealing by fusing, there is solar selectively absorbing coating on this metal inner pipe surface, one end of metal inner pipe is by bellows and interior pipe metal cap and outer siphunculus sealing-in, the other end is only by interior metal cap and outer siphunculus sealing-in, and the metal cap sealing-in constitutes vacuum interlayer between outer tube and the outer siphunculus.This thermal-collecting tube can bear high-pressure medium, and series connection use and scale removal are convenient, but structure and manufacturing process complexity.
Summary of the invention
The straight-through type solar energy vacuum heat collecting tube that the purpose of this invention is to provide a kind of dual-end can solve the existing various shortcomings of vacuum heat collection pipe of present all single-ended openings or dual-end.
A kind of dual-end straight-through vacuum heat collecting tube of the present invention's design is divided into two classes:
The first kind is full glass dual-end straight-through type solar energy vacuum heat collecting tube.It is characterized in that two of weldings can be cut down ring on two glass method basket in the middle of the glass inner tube, and can cut down between the ring through bellows of transition sealing-in metal coupling unit welding at two, then at its surface sputtering solar selectively absorbing coating, the two ends sealing-in vacuum-pumping and sealing of the two ends of pipe and glass outer tube in the final glass and forming.Bellows action be solve glass inner tube because of cold and hot cause linear variation.
Second class is a metal---glass dual-end straight-through type solar energy vacuum heat collecting tube.It is characterized in that in the middle of metal inner pipe through bellows of metal coupling unit welding, and at metal inner pipe surface soldered metal folding wing, then at its surface sputtering solar selectively absorbing coating, blue two of the weldings of the glass method at glass outer tube two ends can be cut down ring, connect last vacuum-pumping and sealing and forming then through the cut down ring seal of transition sealing-in metal coupling unit with metal inner pipe and glass outer tube.The effect of bellows is to solve metal inner pipe because of the cold and hot linear change that causes.
Metal inner pipe surface and metal roll over wing, bellows, can cut down ring surface all solar selectively absorbing coating.
Metal inner pipe surface and metal folding wing surface can be smooth; Also can be to strike out coarse surface, increase endotherm area, improve photo-thermal conversion efficiency.
Can cut down ring is the metal of a kind of linear coefficient of expansion and glassy phase coupling, and therefore, " can cut down " material just becomes the transition sealing connector between metal and the glass, realizes the sealing-in between metal and the glass.
The glass outer tube can adopt sealing by fusing with can cutting down to be connected between the ring through glass method is blue.
Metal inner pipe through transition sealing-in metal coupling unit with can cut down being connected between the ring and can adopt inferior arc-welding.
The metal inner pipe material can go to select according to the requirement that feeds different medium.
The wall thickness of metal inner pipe can require to bear the pressure size according to metal inner pipe and go to select.
Metal inner pipe can adopt the snap joint mode to connect with outside the connection.
Can cut down the ring and the sealing-in part of glass method indigo plant, stamp out hole that is clocklike circular or other shape on the ring can cutting down, its objective is the firmness that improves sealing surface, increase tension, the tensile and compressive strength of sealing surface.
Effect of the present invention
The present invention has the structure of novelty, reasonability, advance, versatility, for the solar energy utilization provides a kind of novel vacuum heat collection pipe.
Heat transfer medium in the vacuum heat collection pipe, the present invention helps improving the photo-thermal conversion efficiency of vacuum heat collection pipe.
Can remove to select for use full glass straight-through type solar energy vacuum heat collecting tube of the present invention according to the requirement of photo-thermal transformation applications system, perhaps select metal for use---the glass straight-through type solar energy vacuum heat collecting tube.
The range of application of solar vacuum heat-collecting pipe of the present invention can expand to cold northern area from warm southern area from the civilian every field such as industry, agricultural that expand to.
The present invention carries out straight-through type solar energy vacuum heat collecting tube parallel connection type connection and tandem type easily and connects in photo-thermal transformation applications system.
Description of drawings
Fig. 1 is the full glass straight-through type solar energy vacuum heat collecting tube of a present invention general structure schematic diagram
1---the glass outer tube
2---glass inner tube
3---solar selective coat
4---vacuum interlayer
5---glass method indigo plant
6---can cut down ring
7---bellows
8---can cut down transition sealing metal coupling unit between ring and the bellows
9---the spring leaf supporting member
10---vacuum exhaust is sealed
11---getter
Fig. 2 is a metal of the present invention---glass straight-through type solar energy vacuum heat collecting tube general structure schematic diagram
1---the glass outer tube
2---metal inner pipe
3---solar selectively absorbing coating
4---vacuum interlayer
5---can cut down ring
6---bellows
7---glass method indigo plant
8---metal folding wing
9---getter
10---vacuum exhaust is sealed
11---can cut down transition sealing metal coupling unit between ring and the metal inner pipe
12---metal inner pipe and the outside snap joint that connects
13---metal coupling unit between bellows and the metal inner pipe
The specific embodiment
The implementation step of full glass straight-through type solar energy vacuum heat collecting tube:
The first step: two of weldings can be cut down ring on the glass method indigo plant of the glass inner tube of two halves root;
Second step: through transition envelope metal coupling unit, can cut down bellows of welding between the ring at two, and at its surface sputtering solar selectively absorbing coating;
The 3rd step: put into spring leaf supporting member and getter between glass outer tube and glass inner tube, vacuumizing and exhausting seals then.
Metal---the implementation step of glass straight-through type solar energy vacuum heat collecting tube:
The first step: in the middle of metal inner pipe, weld a bellows through metal coupling unit, and at metal inner pipe surface soldered metal folding wing, then at metal inner pipe, bellows and metal folding wing surface sputtering solar selectively absorbing coating;
Second step: two of weldings can be cut down ring on the glass method indigo plant at glass outer tube two ends;
The 3rd step: between glass outer tube and metal inner pipe, put into getter;
The 4th step: connect (11) integral body of cut down ring and metal inner pipe welding with the glass outer tube with the transition sealing metal, vacuumizing and exhausting seals then.
Claims (3)
1. novel straight-through structure solar vacuum heat-collecting pipe is characterized in that bellows of sealing-in in the middle of the interior pipe of solar vacuum heat-collecting pipe, and tube-surface sputtered coating absorbing solar energy selectively within it.Put into getter between the glass outer tube of thermal-collecting tube and the interior pipe and vacuumizing and exhausting seals.
2. full glass straight-through type solar energy vacuum heat collecting tube structure according to claim 1, the outer tube and the interior pipe that it is characterized in that thermal-collecting tube all are that glass material is made, can cut down boxing through two in the middle of the glass inner tube and connect a bellows, and at its surface sputtering solar selectively absorbing coating, after glass outer tube and the glass inner tube sealing two ends, exhaust vacuum-pumping and sealing between its interlayer.
3. metal one glass straight-through type solar energy vacuum heat collecting tube structure according to claim 1 is characterized in that outer tube is a glass material, and interior pipe is a metal material; Bellows of welding in the middle of the metal inner pipe, and on its surface weld metal folding wing again; Metal inner pipe, bellows, metal folding wing surface be sputtered coating absorbing solar energy selectively all.Sealing-in between metal inner pipe and the glass outer tube by glass method indigo plant, can cut down ring, transition sealing metal coupling unit three realizes, exhaust vacuum-pumping and sealing on the glass outer tube again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100435767A CN1869543A (en) | 2005-05-24 | 2005-05-24 | Through solar vacuum heat collection pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100435767A CN1869543A (en) | 2005-05-24 | 2005-05-24 | Through solar vacuum heat collection pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1869543A true CN1869543A (en) | 2006-11-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100435767A Pending CN1869543A (en) | 2005-05-24 | 2005-05-24 | Through solar vacuum heat collection pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1869543A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878714A (en) * | 2011-07-12 | 2013-01-16 | 杨志勇 | Turnup inverse sealing type glass metal vacuum heat collecting pipe |
-
2005
- 2005-05-24 CN CNA2005100435767A patent/CN1869543A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878714A (en) * | 2011-07-12 | 2013-01-16 | 杨志勇 | Turnup inverse sealing type glass metal vacuum heat collecting pipe |
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| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Song Zhao Document name: Notice of publication of application for patent for invention |
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| DD01 | Delivery of document by public notice |
Addressee: Song Zhao Document name: Notification before expiration of term |
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| C57 | Notification of unclear or unknown address | ||
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Addressee: Song Zhao Document name: Notification that Application Deemed to be Withdrawn |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |