CN200993490Y - Heat pipe type focusing vacuum heat collecting pipe - Google Patents
Heat pipe type focusing vacuum heat collecting pipe Download PDFInfo
- Publication number
- CN200993490Y CN200993490Y CNU2006201652499U CN200620165249U CN200993490Y CN 200993490 Y CN200993490 Y CN 200993490Y CN U2006201652499 U CNU2006201652499 U CN U2006201652499U CN 200620165249 U CN200620165249 U CN 200620165249U CN 200993490 Y CN200993490 Y CN 200993490Y
- Authority
- CN
- China
- Prior art keywords
- pipe
- outer tube
- glass outer
- kovar alloy
- tube
- 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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- 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
- F24S10/00—Solar heat collectors using working fluids
- F24S10/90—Solar heat collectors using working fluids using internal thermosiphonic circulation
- F24S10/95—Solar heat collectors using working fluids using internal thermosiphonic circulation having evaporator sections and condenser sections, e.g. heat pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
- F24S2025/6012—Joining different materials
- F24S2025/6013—Joining glass with non-glass 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)
- Thermal Insulation (AREA)
Abstract
The utility model relates to a thermal tube type focusing vacuum heat collection tube, and pertains to the technical field of solar heat utilization. The heat collection tube comprises a glass outer tube that is sealed on one end and a thermal tube coated with a solar energy absorptive coating on the lower part in the glass outer tube, wherein, the glass outer tube is connected to the metal thermal tube by means of Kovar alloy, and the space between the outer tube and the inner tube is pumped to vacuum, and is mounted with a reflecting plate. The improvements in the utility model include: the Kovar alloy is inserted into the wall of the glass outer tube and is sealed by fusing; a protection hood is fixed on the upper part of the thermal tube, and the protection hood is flanged on the edge to cover the fused sealing part. Since the traditional fused sealing connection is replaced by inserted fused sealing connection in the utility model, the joint has higher strength, and is resistant to high temperature and deformation; in addition, since the protection hood covers the fused sealing part, the fused sealing part will not be exposed in direct solar radiation, and thereby the temperature on the fused sealing part is reduced effectively. Therefore, the high temperature resistance performance of the sealing part can be increased greatly, and the utility model can meet the requirement for application in high temperature environments.
Description
Technical field
The utility model relates to a kind of vacuum heat collection pipe, and especially a kind of hot pipe type focusing vacuum heat collection pipe of working under higher temperature belongs to the solar energy utilization technique field.
Background technology
Vacuum heat collection pipe is a kind of core devices of solar energy heat utilization field, and its major function is to be heat energy with conversion of solar energy.Understand according to the applicant, the basic structure of existing hot pipe type focusing vacuum heat collection pipe is: in the glass outer tube of an end sealing rear surface is housed and applies the metal heat pipe that absorbs the sunshine coating, melting envelope by kovar alloy between glass outer tube and the metal heat pipe is connected, the glass outer tube vacuumizes in the interlayer of metal heat pipe preventing heat waste, and reflector is housed in interlayer.Though this thermal-collecting tube efficient is higher, also has distinct disadvantage: 1) between metal heat pipe and glass outer tube cut down and the finance envelope connects unreliablely, the time is long or easily leaked gas by heat-flash even break, reduction vacuum influences security; 2) structure of reflector is reasonable inadequately, so secondary reflection, reentry can appear in the part sunshine.Therefore, existing this series products is difficult to satisfy the instructions for use of high temperature workplaces such as solar energy thermal-power-generating.
The utility model content
The purpose of this utility model is: at the defective of above-mentioned existence, propose a kind of hot pipe type focusing vacuum collector that can effectively improve sealing-in place resistance to elevated temperatures.
In order to reach above purpose, hot pipe type focusing vacuum collector of the present utility model comprises the glass outer tube of end sealing, rear surface is housed in the described glass outer tube applies the heat pipe that absorbs the sunshine coating, described glass outer tube is connected by kovar alloy with the metal heat pipe, vacuumize in the interlayer each other, and in interlayer, reflector is housed.Its improvements are, described kovar alloy inserts that sealing by fusing connects in the glass outer tube wall thickness, described heat pipe middle and upper part fixed blade guard, and the flange of described protective cover periphery covers the sealing by fusing position.
Like this, because having replaced the envelope of melting in the past with the connection of plug-in type sealing by fusing connects, therefore seam itself has higher intensity, can stand high temperature, resistance to deformation stress, and protective cover has covered the sealing by fusing position, can avoid the direct irradiation of sunshine, effectively suppressed sealing by fusing position temperature, therefore can significantly improve sealing-in place resistance to elevated temperatures, thereby satisfy the needs of high temperature application scenario.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the structural representation of the utility model embodiment two.
Fig. 3 is the partial enlarged drawing at I place among Fig. 1 and 2.
Fig. 4 is the partial enlarged drawing at II place among Fig. 2.
Fig. 5 is the partial enlarged drawing at III place among Fig. 1 and 2.
Fig. 6 is the sectional structure chart of Fig. 1 and Fig. 2.
Fig. 7 is for constituting the another kind of sectional structure chart of embodiment 3 and embodiment 4.
The specific embodiment
Among Fig. 11 is heat pipe, the 2nd, cooling collar, the 3rd, and cooling medium, the 4th, flange, the 5th, kovar alloy, the 6th, glass outer tube, the 7th, vacuum chamber, the 8th, reflector, the 9th absorbs sunshine coating, the 10th, support, the 11st, protective cover.
The hot pipe type focusing vacuum collector of present embodiment as shown in Figure 1, flange (referring to Fig. 3) sealing by fusing that glass outer tube 6 mouths of pipe of one end sealing insert plate-like kovar alloy 5 connects, metal heat pipe 1 surface-coated absorbs sunshine coating 9, the end face offset hole that kovar alloy 5 is passed in the lower end stretches in the glass outer tube 6.Metal heat pipe 1 and kovar alloy 5 seal weldings, and the chamber 7 that is evacuated in the interlayer between the glass outer tube, it is the CPC reflector 8 of inverted V-shaped that lower curtate is housed in the interlayer, the opening of reflector 8 is towards heat pipe 1 and the bigger side (referring to Fig. 6) of glass outer tube 6 spacings.The cooling collar 2 of cooling medium 3 is equipped with in the welding of heat pipe 1 top, and welding line structure is referring to Fig. 5, and fixed blade guard 11 is welded in the middle and upper part, and this protective cover periphery flange down covers the sealing by fusing position.Resiliency supported 10 is equipped with in the lower end of heat pipe 1, and the heat pipe lower end firmly is placed in the glass outer tube.
During work, sunshine sees through glass outer tube and vacuum chamber, be radiated on the reflector that scribbles the heat pipe that absorbs the sunshine coating and bottom, through the sunshine of reflector focus reflection and direct irradiation after the sunshine on the heat pipe is absorbed by the heat pipe face coat, working medium in the heating heat pipe pipe, reach the cooling section of heat pipe after the intraductal working medium vaporization, with the cooling medium outside the heat transferred heat pipe pipe, in the cooling collar, after the steam condensation, the bringing-up section of getting back to heat pipe recycles again in the cooling section of heat pipe.Thereby realized changing into the process of heat energy, reached and utilized solar energy to prepare hot water, hot gas, produced that steam, high-temperature gas generate electricity, the purpose of desalinization, heat utilization by luminous energy.
Embodiment two
The basic structure of present embodiment is identical with embodiment one, difference is that heat pipe 1 is inserted in seal welding in the offset hole of metal flange dish 4, be shaped on broadside bead down near the periphery of metal flange dish 4, this bead and the upper end of kovar alloy ring 5 corresponding broadside bead seal welding, Welding Structure is referring to Fig. 4, and the lower end of kovar alloy ring 5 and the glass mouth of pipe constitute plug-in type sealing by fusing be tightly connected (referring to Fig. 3).Can when save kovar alloy, reach same sealing by fusing and connect effect like this, be beneficial to thermal-collecting tube fixing in the future system applies simultaneously.。
Embodiment three
The structure of present embodiment and embodiment one are basic identical, are connected by kovar alloy 5 sealings by fusing between glass outer tube 6 and the heat pipe 1, form the glass-metal vacuum chamber, place adsorbent in the vacuum chamber, to reach and to keep the interior vacuum of vacuum chamber 7.The main difference part is that the surface scribbles the heat pipe 1 that absorbs the sunshine coating and is placed in the compound reflecting plate 8 of bottom for M shape or W shape, the opening of reflector 8 is enclosed and is fixed on (referring to Fig. 7) in vacuum glass-metal cavitg 7 towards heat pipe 1 and the bigger side of glass outer tube 6 spacings.
The advantage that experiment showed, present embodiment has: the glass-metal vacuum chamber that is formed by glass outer tube and heat pipe sealing by fusing can or not destroyed by heat-flash generation leakage phenomenon because of time length, makes vacuum lasting; Interface adds that the protective cover better protection can cut down and the glass interface, makes the total more can be high temperature resistant.Especially, the bottom is that the reflector of M shape or W shape has overcome the light leak loss that lower curtate is the inverted V-shaped reflector--and since heat pipe and lower curtate for the inverted V-shaped reflecting plate has big gap, there is light leak loss in about sunshine of about 9% reentry behind secondary reflection.
Total design science, simply, rationally be convenient to large-scale industrial production, performance safety, reliable, cost is low, easily promotes.
Embodiment four
The structure of present embodiment and embodiment two are basic identical, adopt flange 4 to be connected by kovar alloy 5 sealings by fusing between glass outer tube 6 and the heat pipe 1, form the glass-metal vacuum chamber, and placement adsorbent in the vacuum chamber is to reach and to keep the interior vacuum of vacuum chamber 7.The main difference part is that the surface scribbles the heat pipe 1 that absorbs the sunshine coating and is placed in the compound reflecting plate 8 of bottom for M shape or W shape, encloses to be fixed in vacuum glass-metal cavitg 7, comprehensively has embodiment two and three advantage, is a kind of preferred version.
Claims (5)
1, a kind of hot pipe type focusing vacuum heat collection pipe, the glass outer tube that comprises end sealing, rear surface is housed in the described glass outer tube applies the heat pipe that absorbs the sunshine coating, described glass outer tube is connected by kovar alloy with the metal heat pipe, vacuumize in the interlayer each other, and in interlayer reflector is housed, it is characterized in that: described kovar alloy inserts sealing by fusing connection in the glass outer tube wall thickness, described heat pipe middle and upper part fixed blade guard, the flange of described protective cover periphery covers the sealing by fusing position.
2, according to the described hot pipe type focusing vacuum heat collection pipe of claim 1, it is characterized in that: the flange sealing by fusing that the mouth of pipe of described glass outer tube inserts the plate-like kovar alloy connects, the end face offset hole that kovar alloy is passed in described metal heat pipe lower end stretches in the glass outer tube, with the kovar alloy seal welding.
3, according to the described hot pipe type focusing vacuum heat collection pipe of claim 1, it is characterized in that: described heat pipe is inserted in seal welding in the metal flange dish offset hole, be shaped on broadside bead down near the periphery of described metal flange dish, described bead and the upper end of kovar alloy ring corresponding broadside bead seal welding, the lower end of described kovar alloy ring and the glass mouth of pipe constitute the plug-in type sealing by fusing and are tightly connected.
4, according to claim 2 or 3 described hot pipe type focusing vacuum heat collection pipes, it is characterized in that: described reflector lower curtate is an inverted V-shaped, the side that opening tube pitch outside heat pipe and glass is bigger.
5, according to claim 2 or 3 described hot pipe type focusing vacuum heat collection pipes, it is characterized in that: described reflector bottom is M shape or W shape, the side that opening tube pitch outside heat pipe and glass is bigger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201652499U CN200993490Y (en) | 2006-12-22 | 2006-12-22 | Heat pipe type focusing vacuum heat collecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201652499U CN200993490Y (en) | 2006-12-22 | 2006-12-22 | Heat pipe type focusing vacuum heat collecting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993490Y true CN200993490Y (en) | 2007-12-19 |
Family
ID=38946564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201652499U Expired - Fee Related CN200993490Y (en) | 2006-12-22 | 2006-12-22 | Heat pipe type focusing vacuum heat collecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200993490Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712357A (en) * | 2013-12-30 | 2014-04-09 | 南京诚远太阳能科技有限公司 | Heat pipe using solar energy to achieve vacuum light condensation |
-
2006
- 2006-12-22 CN CNU2006201652499U patent/CN200993490Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712357A (en) * | 2013-12-30 | 2014-04-09 | 南京诚远太阳能科技有限公司 | Heat pipe using solar energy to achieve vacuum light condensation |
| CN103712357B (en) * | 2013-12-30 | 2016-04-06 | 南京诚远太阳能科技有限公司 | Utilize the heat pipe of solar energy evacuated optically focused |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: CO-PATENTEE TO: WANG JUN ^ |
|
| CU01 | Correction of utility model patent |
Correction item: Co-patentee Correct: Wang Jun Number: 51 Page: The title page Volume: 23 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Co-patentee Correct: Wang Jun Number: 51 Volume: 23 |
|
| ERR | Gazette correction |
Free format text: CORRECT: CO-PATENTEE; FROM: NONE ^ TO: WANG JUN ^ |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071219 Termination date: 20121222 |