CN102661633A - Through-type solar vacuum heat collecting tube - Google Patents
Through-type solar vacuum heat collecting tube Download PDFInfo
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- CN102661633A CN102661633A CN2012101802180A CN201210180218A CN102661633A CN 102661633 A CN102661633 A CN 102661633A CN 2012101802180 A CN2012101802180 A CN 2012101802180A CN 201210180218 A CN201210180218 A CN 201210180218A CN 102661633 A CN102661633 A CN 102661633A
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- heat
- type solar
- vacuum heat
- solar vacuum
- tube
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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 invention provides a through-type solar vacuum heat collecting tube which is composed of a vacuum heat collecting tube with two open ends and a metal sleeve of a coaxial built-in metal volume-reduction bar; the metal sleeve is provided with a support ring fixed volume-reduction bar; and heat conduction paste is filled between the through-type solar vacuum heat collecting tube and the metal sleeve. According to the invention, the hot and cold convective circulation efficiency of the solar vacuum tube is improved greatly, and a plurality of groups of vacuum heat collecting tubes can be connected in series for centralized utilization, thus possibility is created for medium-temperature and high-temperature solar energy application industrially.
Description
Technical field
The present invention relates to a kind of through type solar vacuum heat-collecting pipe, relate in particular to a kind of middle high temperature and utilize solar vacuum heat-collecting pipe, belong to solar energy heating heat transfer technology and equipment field.
Background technology
Solar water heater is liked by the public deeply as a kind of daily necessities of cheap thermal source that provides, glass heat-collecting vacuum tube has been widely used in solar water heater at present.In order further to improve the collecting efficiency of solar energy heat collection pipe; Chinese patent disclose a series of in optically focused subtract the technical scheme of holding high-temperature heat-collection pipe and preparation method in the solar energy; Mainly subtract and hold the heat exchange temperature that improves vacuum tube, improve solar energy utilization ratio and make an issue of from optically focused.But; High-temperature vacuum heat collector in the solar energy of existing use heat transfer medium all is a solar energy vacuum tube of using an end opening, and all circulation canals all are arranged on an end of solar energy vacuum tube; The maximum drawback of this structure is: cold and hot different heat transfer medium advances and goes out from the same end of vacuum tube; Because do not shunt, the heat transfer medium heat exchange efficiency is low, and can not concentrate use is to influence the critical bottleneck that high temperature utilizes in the solar energy vacuum tube.
Summary of the invention
The technical problem that the present invention will solve provides a kind of through type solar vacuum heat-collecting pipe, makes the solar energy utilization towards high temperature, and efficient, the intensive direction of central heating develops.
For solving the problems of the technologies described above, the technical scheme that the present invention taked is:
This through type solar vacuum heat-collecting pipe is to subtract the metal sleeve that holds rod by the vacuum glass heat collection tube of both ends open and coaxial built-in metal to constitute, metal sleeve be provided with support ring fixedly subtract hold excellent.
Fill heat-conducting cream between the vacuum glass heat collection tube of described through type solar vacuum heat-collecting pipe and the metal sleeve.
Described through type solar vacuum heat-collecting pipe is set up in parallel between the heat-collecting box that is provided with up and down, and heat-collecting box links to each other with heat exchanger and constitutes thermal-arrest and heat exchange return flow line up and down, and heat-collecting box is interior up and down encapsulates high heat-proof heat transfer medium.
The glass outer tube choke branch of described through type solar vacuum heat-collecting pipe is provided with dust-proof seal ring; The dust-proof seal ring outer rim is stuck on the preformed hole of heat-collecting box shell; The external diameter that metal tube leans out glass tube is provided with high-temperature resistant seal ring, and sealing ring end face annular groove is stuck on the preformed hole of heat-collecting box inner bag.
Described through type solar vacuum heat-collecting pipe vacuum glass outer tube inside is provided with the hyperboloid concentrator, and the inwall of the glass inner tube of vacuum heat collection pipe is provided with solar absorbing film.
The technological progress effect that the present invention produced is: the through type solar vacuum heat-collecting pipe of the present invention's design; Adopt built-in metal to subtract and hold excellent metal sleeve formation; Fill heat-conducting cream between vacuum heat collection pipe and the metal sleeve, effectively improved the heat transfer efficiency of vacuum heat collection pipe.Adopt the thermal-collecting tube of parallel connection side by side; And with this thermal-collecting tube heat transfer medium heat collecting tank and transmission channel that splits up and down that be basic engineering; Greatly improved the cold and hot convection circulation efficient of solar energy vacuum tube; The multi-group vacuum thermal-collecting tube of can connecting is concentrated use, thereby for extensive middle temperature is gone up in industry, the high temperature applied solar energy has been created maybe.The vacuum heat collection tube built-in concentrator does not receive atmosphere pollution and erosion, and spotlight effect is good, long service life.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Fig. 1 is a through type solar vacuum heat-collecting pipe structural representation
Fig. 2 is the sectional view of Fig. 1
Fig. 3 is a separated type solar vacuum heat-collecting heat-exchange system assembling sketch map
Fig. 4 is the partial enlarged drawing of Fig. 3
Among the figure:
1, heat transfer medium 2, through type solar vacuum heat-collecting pipe 3, last heat-collecting box
4, following heat-collecting box 5, circulating pump 6, heat transfer medium refluxing opening connector
7, heat transfer medium outlet connector 8, heat exchanger 9, fluid backflow connector is cooled
10, be heated fluid issuing connector 11, hyperboloid solar panel
2-1, support ring 2-2, sealing ring 2-3, subtract and hold rod
Pipe 2-6, heat-conducting cream in 2-4, metal sleeve 2-5, the vacuum heat-collecting tube glass
2-7, vacuum heat-collecting tube glass outer tube 3-1 heat-collecting box shell 3-2 heat-collecting box inner bag
3-3 heat-collecting box heat-insulation layer 3-4, high-temperature resistant seal ring 3-5, dust-proof seal ring
The specific embodiment
Fig. 1 provides the concrete structure application example of through type solar vacuum heat-collecting pipe 2; Through type solar vacuum heat-collecting pipe 2 is the vacuum heat collection pipes by both ends open; Subtracting the metal sleeve 2-4 that holds excellent 2-3 with coaxial built-in metal constitutes; Heat transfer medium is in metal sleeve 2-4 the inside and heat- collecting box 3,4 communication loop up and down, and metal sleeve is provided with support ring 2-1 and fixedly subtracts the excellent 2-3 of appearance.Subtract and hold rod in metal sleeve, constituted the circular passage, it is long-pending to increase heat transfer medium and heat source-contacting surface, improves the heat exchange efficiency of heat transfer medium and vacuum heat collection pipe.
Fill heat-conducting cream 2-6 between through type solar vacuum heat-collecting pipe 2 and the metal sleeve 2-4.In order to improve heat transfer efficiency between metal tube and glass inner tube, the heat that glass inner tube is absorbed can efficiently conduct to metal sleeve.Heat-conducting cream selects brand instance in market to be: the special company's enhancement mode heat-conducting silicone grease (W-1 type) of Nanjing Heineken, serviceability temperature≤350 ℃.
The glass outer tube 2-7 inside of through type solar vacuum heat-collecting pipe 2 shown in Figure 2 is provided with hyperboloid concentrator 11, and the inwall of the glass inner tube 2-5 of vacuum heat collection pipe 2 is provided with absorbing film.
When the present invention worked, heat transfer medium got into metal sleeve 2-4 from an end, flowed out from the metal tube other end, in through the glass inner tube process that is coated with solar absorbing film, took away the heat energy that solar vacuum heat-collecting pipe absorbs.Because heat transfer medium does not contact with vacuum tube, even glass tube breaks, heat transfer medium does not outflow yet, and can not cause the collecting system paralysis.
The present invention gives the practical application embodiment of through type solar vacuum heat-collecting pipe, is illustrated in figure 3 as the assembling sketch map of separated type solar vacuum heat-collecting heat-exchange system of the present invention.At least comprise one group of last heat-collecting box 3 that is provided with up and down, following heat-collecting box 4; Up and down between the heat-collecting box side by side and the through type solar vacuum heat-collecting pipe 2 that is provided with of parallel connection; Heat-collecting box links to each other with heat exchanger 8 and constitutes thermal-arrest and heat exchange return flow line up and down, encapsulates high heat-proof heat transfer medium up and down in the heat-collecting box.The embodiment heat transfer medium that the present invention provides is a conduction oil; Comprise following market brand: Wanda RADCO synthesizes conduction oil Xceltherm-HT, Mobiltherm (Mobiltherm) 603 and 605, Dao Daer conduction oil SERIOLA 3120 or the like, serviceability temperature≤350 ℃.
Heat-collecting box up and down shown in Figure 3 respectively has a connector; Heat transfer medium refluxing opening connector 6 is connected with heat exchanger 8 respectively with heat transfer medium outlet connector 7; Two other connector of heat exchanger be cooled fluid backflow connector 9 be heated fluid issuing connector 10, import respectively, export and be heated fluid.Between heat-collecting box and the heat exchanger circulating pump 5 is being set up and down.
The glass outer tube choke branch of through type solar vacuum heat-collecting pipe 2 shown in Figure 4 is provided with dust-proof seal ring 3-5; The dust-proof seal ring outer rim is stuck on the preformed hole of heat-collecting box shell; The external diameter that the built-in metal sleeve of through type solar vacuum heat-collecting pipe leans out glass tube is provided with high-temperature resistant seal ring 3-4, and sealing ring end face annular groove is stuck on the preformed hole of heat-collecting box inner bag.
Claims (5)
1. through type solar vacuum heat-collecting pipe; It is characterized in that: through type solar vacuum heat-collecting pipe (2) is the vacuum glass heat collection tube by both ends open; Subtract the metal sleeve (2-4) that holds rod (2-3) with coaxial built-in metal and constitute, metal sleeve is provided with support ring (2-1) and fixedly subtracts appearance rod (2-3).
2. through type solar vacuum heat-collecting pipe according to claim 1, its characteristic comprises: fill heat-conducting cream (2-6) between said vacuum glass heat collection tube and the metal sleeve (2-4).
3. through type solar vacuum heat-collecting pipe according to claim 1; It is characterized in that: said through type solar vacuum heat-collecting pipe is set up in parallel between the heat-collecting box (3,4) that is provided with up and down; Heat-collecting box (3,4) links to each other with heat exchanger (8) and constitutes thermal-arrest and heat exchange return flow line up and down, encapsulates high heat-proof heat transfer medium up and down in the heat-collecting box.
4. through type solar vacuum heat-collecting pipe according to claim 1; It is characterized in that: the glass outer tube choke branch of said through type solar vacuum heat-collecting pipe is provided with dust-proof seal ring (3-5); The dust-proof seal ring outer rim is stuck on the preformed hole of heat-collecting box shell; The external diameter that metal tube leans out glass tube is provided with high-temperature resistant seal ring (3-4), and sealing ring end face annular groove is stuck on the preformed hole of heat-collecting box inner bag.
5. through type solar vacuum heat-collecting pipe according to claim 1; Its characteristic comprises: glass outer tube (2-7) inside of said through type solar vacuum heat-collecting pipe is provided with hyperboloid concentrator (11), and the inwall of the glass inner tube of vacuum heat collection pipe (2-5) is provided with solar absorbing film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101802180A CN102661633A (en) | 2012-06-04 | 2012-06-04 | Through-type solar vacuum heat collecting tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101802180A CN102661633A (en) | 2012-06-04 | 2012-06-04 | Through-type solar vacuum heat collecting tube |
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| Publication Number | Publication Date |
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| CN102661633A true CN102661633A (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101802180A Pending CN102661633A (en) | 2012-06-04 | 2012-06-04 | Through-type solar vacuum heat collecting tube |
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| CN (1) | CN102661633A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302781A (en) * | 2016-09-26 | 2018-07-20 | 北京兆阳光热技术有限公司 | A kind of evacuated collector tube, its production method and solar energy thermo-power station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57204754A (en) * | 1981-06-09 | 1982-12-15 | Sanyo Electric Co Ltd | Solar energy converter |
| CN2451968Y (en) * | 2000-06-16 | 2001-10-03 | 祝建东 | Straight-through vacuum tube solar energy water heater |
| CN101025298A (en) * | 2006-02-20 | 2007-08-29 | 徐宝安 | Medium-conductive glass composite pipe pressure-bearing straight-through solar vacuum energy exchanging tube |
| CN101122421A (en) * | 2007-07-23 | 2008-02-13 | 高本兰 | Solar energy water heater and solar energy hot water unit |
-
2012
- 2012-06-04 CN CN2012101802180A patent/CN102661633A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57204754A (en) * | 1981-06-09 | 1982-12-15 | Sanyo Electric Co Ltd | Solar energy converter |
| CN2451968Y (en) * | 2000-06-16 | 2001-10-03 | 祝建东 | Straight-through vacuum tube solar energy water heater |
| CN101025298A (en) * | 2006-02-20 | 2007-08-29 | 徐宝安 | Medium-conductive glass composite pipe pressure-bearing straight-through solar vacuum energy exchanging tube |
| CN101122421A (en) * | 2007-07-23 | 2008-02-13 | 高本兰 | Solar energy water heater and solar energy hot water unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302781A (en) * | 2016-09-26 | 2018-07-20 | 北京兆阳光热技术有限公司 | A kind of evacuated collector tube, its production method and solar energy thermo-power station |
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Application publication date: 20120912 |