CN101398229A - Vacuum double tube heat collection system for groove type solar power station - Google Patents
Vacuum double tube heat collection system for groove type solar power station Download PDFInfo
- Publication number
- CN101398229A CN101398229A CNA2007101224847A CN200710122484A CN101398229A CN 101398229 A CN101398229 A CN 101398229A CN A2007101224847 A CNA2007101224847 A CN A2007101224847A CN 200710122484 A CN200710122484 A CN 200710122484A CN 101398229 A CN101398229 A CN 101398229A
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- China
- Prior art keywords
- tube
- collection system
- arrest
- thermal
- heat
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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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- 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)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses a vacuum double-pipe heat collection system of a slot solar power plant, which solves the problems of expansion from heat and contraction from cold of a metal heat absorption pipe. The system consists of a double metal pipe for collecting heat and an outer glass hood one end of which is sealed; the outer glass hood and the double metal pipe for collecting heat share the same axle center; a sealed vacuum is formed between the outer glass hood and the double metal pipe for collecting heat; the heat collection system is characterized in that the double metal pipe for collecting heat and the outer glass hood are respectively provided with only one sealed joint at one end with a flange; and the expansion from heat and contraction from cold of the metal heat absorption pipe can be carried out more freely in the outer glass hood without technical problems brought by sylphon bellows. Simultaneously, the system is provided with an air suction pipe and can be connected with an external detection device and a driven vacuum pump thereof, thus being capable of ensuring the vacuity in the pipe to be maintained in the required range.
Description
Technical field
The present invention relates to a kind of vacuum double tube heat collection system for groove type solar power station that is used in, is a kind of new-type groove type solar vacuum heat-collecting system, belongs to the solar energy heat collection pipe technical field.
Background technology
What groove type solar power station received the solar energy use is the grooved parabolic mirror, and sunlight is after the minute surface reflection, and gathering is a line, and solar receiver just is placed on this focal line, is used to absorb solar energy and comes heating working medium.The light concentrating times of grooved parabolic mirror is lower, and the system works temperature generally is no more than 400 ℃.Collecting system commonly used is a vacuum collector; it is a metal circular tube surface-coated high-temperature selective absorbing film (as black chromium, a black nickel etc.); in concentric glass round tube of metal circular tube outside cover; vacuumize in the interlayer; both protected the selective coating on thermal-collecting tube surface; reduce the thermal-arrest loss again, the employing kovar alloy is done the sealing-in between glass and the metal.Its major defect is in order to keep vacuum, the two ends of metal heat absorption tube and glass tube all need sealing-in, owing to have the temperature difference between glass tube and metal tube, therefore must be by means of the bellows transition, with expanding with heat and contract with cold of compensation metal heat absorption tube, this just requires very high to the sealing technology between glass and the metal, and is difficult to accomplish keep the interior vacuum of interlayer for a long time under the service condition out of doors.
Summary of the invention
In order to overcome the deficiency of prior art structure, the invention provides a kind of vacuum double tube heat collection system for groove type solar power station.
The technical scheme that problem adopted of expanding with heat and contract with cold that the present invention solves metal heat absorption tube is to adopt a kind of vacuum double tube heat collection system for groove type solar power station, thermal-arrest bimetal tube and a sealed glass outer cover are arranged, the two-tube concentric of glass outer cover and metal, form airtight vacuum in the middle of them, thermal-arrest bimetal tube and glass outer cover have only an end that sealed interface is arranged with ring flange separately, have inlet manifold assembly to be connected on the ring flange.
Expanding with heat and contract with cold of metal heat absorption tube of the present invention can be carried out the technical problem that does not have bellows to bring comparatively freely in cloche.Have inlet manifold assembly simultaneously, the vacuum in can guaranteeing to manage remains in the desired scope.
Description of drawings
Fig. 1 is the vacuum double tube heat collection system structural representation;
Fig. 2 is the A-A profile.
The present invention is further described below in conjunction with drawings and Examples.
The specific embodiment
Embodiment 1:
As shown in Figure 1,1 for being heated working medium; 2 is inlet manifold assembly; 3 is ring flange; 4 is the kovar alloy sealing by fusing interface between glass outer cover and ring flange; 5 is the glass outer cover; 6 is the thermal-arrest bimetal tube; 7 is metal tube surface-coated high-temperature selective absorbing film; 8 is the vacuum space between glass outer cover and the thermal-arrest bimetal tube; 9 is the support between thermal-arrest bimetal tube and the glass outer cover.
It is a line that sunshine is assembled after the minute surface reflection, is radiated on the thermal-arrest bimetal tube 6, and thermal-arrest bimetal tube 6 surface-coated high-temperature selective absorbing films 7 can more effective absorbing solar energy.Be heated working medium (heat-transfer fluid) 1, from the port injection of thermal-arrest bimetal tube 6, the heating back is flowed out by another port.After thermal-arrest bimetal tube 6 passes ring flange 3 center plug-in mountings, with ring flange 3 seal weldings, help improving intensity, increase rigidity.Glass outer cover 5 is connected by kovar alloy sealing by fusing interface 4 with ring flange 3.
2 is inlet manifold assembly, is installed on the ring flange 3, seals when normally moving.The vacuum of vacuum space 8 or when absorbing seal cavity gas in wanting detector tube can be connected by the checkout equipment and the passive type vavuum pump thereof of inlet manifold assembly 2 and outside.Vacuum in so just can guaranteeing to manage remains in the desired scope.
Embodiment 2:
Fig. 2 (a) and (b) provided the profile of thermal-arrest bimetal tube 6 respectively for round tube and rectangular tube.Arrow locations is that the position is assembled in minute surface reflection back among the figure.Thermal-arrest bimetal tube 6 contact positions can connect with welding.Since focal line shine two-tube on, like this, being heated working medium will be by the heating of longer distance in thermal-arrest bimetal tube 6.
Claims (4)
1, a kind of vacuum double tube heat collection system, thermal-arrest bimetal tube and a sealed glass outer cover are arranged, the two-tube concentric of glass outer cover and metal, form airtight vacuum in the middle of them, it is characterized in that: thermal-arrest bimetal tube and glass outer cover have only an end that sealed interface is arranged with ring flange separately, have inlet manifold assembly to be connected on the ring flange.
2, a kind of vacuum double tube heat collection system according to claim 1, vacuum double tube heat collection system is characterized in that; After the thermal-arrest bimetal tube passed ring flange center plug-in mounting, with the flangeseal welding, the glass outer cover was connected by kovar alloy sealing by fusing interface with ring flange, on the thermal-arrest bimetal tube, the surface-coated high-temperature selective absorbing film is arranged.
3, a kind of vacuum double tube heat collection system according to claim 1 and 2 is characterized in that; The end that support and connection thermal-arrest bimetal tube and glass outer cover are arranged.
4, a kind of vacuum double tube heat collection system according to claim 1 and 2 is characterized in that; Described thermal-arrest bimetal tube, the section of single tube are circular or square or rectangle, and thermal-arrest bimetal tube contact position is welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101224847A CN101398229A (en) | 2007-09-26 | 2007-09-26 | Vacuum double tube heat collection system for groove type solar power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101224847A CN101398229A (en) | 2007-09-26 | 2007-09-26 | Vacuum double tube heat collection system for groove type solar power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101398229A true CN101398229A (en) | 2009-04-01 |
Family
ID=40516953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101224847A Pending CN101398229A (en) | 2007-09-26 | 2007-09-26 | Vacuum double tube heat collection system for groove type solar power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101398229A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588231A (en) * | 2011-01-10 | 2012-07-18 | 北京创意博能源科技有限公司 | Heat and power cogeneration vacuum tube for solar energy |
| CN106500365A (en) * | 2016-09-28 | 2017-03-15 | 李渊 | A kind of high-temperature heat-collection pipe and solar energy heat collector |
| CN108180643A (en) * | 2017-12-19 | 2018-06-19 | 海宁市华锋太阳能集热管有限公司 | It is a kind of can monitoring temperature solar energy heat collection pipe |
| CN110686416A (en) * | 2019-10-28 | 2020-01-14 | 江苏沐阳智骅能源科技有限公司 | Solar energy heat-generating heat-collecting tube |
-
2007
- 2007-09-26 CN CNA2007101224847A patent/CN101398229A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588231A (en) * | 2011-01-10 | 2012-07-18 | 北京创意博能源科技有限公司 | Heat and power cogeneration vacuum tube for solar energy |
| CN102588231B (en) * | 2011-01-10 | 2013-11-20 | 北京创意博能源科技有限公司 | Heat and power cogeneration vacuum tube for solar energy |
| CN106500365A (en) * | 2016-09-28 | 2017-03-15 | 李渊 | A kind of high-temperature heat-collection pipe and solar energy heat collector |
| CN108180643A (en) * | 2017-12-19 | 2018-06-19 | 海宁市华锋太阳能集热管有限公司 | It is a kind of can monitoring temperature solar energy heat collection pipe |
| CN110686416A (en) * | 2019-10-28 | 2020-01-14 | 江苏沐阳智骅能源科技有限公司 | Solar energy heat-generating heat-collecting tube |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090401 |