CN108800616A - A kind of novel slot solar light-condensing and heat-collecting device - Google Patents
A kind of novel slot solar light-condensing and heat-collecting device Download PDFInfo
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- CN108800616A CN108800616A CN201810730610.5A CN201810730610A CN108800616A CN 108800616 A CN108800616 A CN 108800616A CN 201810730610 A CN201810730610 A CN 201810730610A CN 108800616 A CN108800616 A CN 108800616A
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- heat
- condensing
- light
- tube
- collecting device
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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
-
- 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
- Y02E10/47—Mountings or tracking
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- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of novel slot solar light-condensing and heat-collecting devices.Light condenser field, groove type solar evacuated collector tube 2 and the supporting rack 4 being mainly made of with Fresnel Lenses 3 paraboloid trough type concentrating collector 1 form, groove type solar evacuated collector tube 2 is located on the focal position for the light condenser field that paraboloid trough type concentrating collector 1 is constituted with Fresnel Lenses 3, and supporting rack 4 supports Fresnel Lenses 3 that it is made to be mounted on the frame body of paraboloid trough type concentrating collector 1.Light condenser field in the present invention makes groove type solar evacuated collector tube 2 be uniformly heated, the helical rotors 6 being equipped in the inner tube 201 of groove type solar evacuated collector tube 2, improve the internal disturbance and mixability of heat-conducting liquid in inner tube 201, realize the purpose of augmentation of heat transfer, improve the heat transfer efficiency of groove type solar evacuated collector tube 2, the overall efficiency of groove type solar light-condensing and heat-collecting device is further increased, the service life of slot type solar light-condensing and heat-collecting device is extended.
Description
Technical field
The invention belongs to solar energy utilization technique field, more particularly to a kind of achievable high efficiency photo-thermal energy conversion
Novel slot solar concentrating collector device.
Background technology
In face of energy security, climate change and the severe challenge of environmental pollution, the cleaning for implementing regenerative resource substitute and
Accelerate the popularization of energy-conserving and emission-cutting technology, it has also become current energy field theme.Among all kinds of clean energy resourcies, solar energy resources amount
Maximum, potentiality to be exploited are huge and distribution is the most extensive.Wherein, solar thermal utilization is as a kind of emerging renewable energy utilization
Technology plays increasingly important role.It has cleaning, pollution-free, total amount larger and inexhaustible advantage, but also has
The shortcomings of flux density is relatively low, intermittent.By taking energy capture device appropriate, other shapes can be converted solar energy into
Formula energy, and applied to the various aspects of the industry such as photo-thermal power generation, sea water desalination, absorption heating and refrigeration and life.And slot type
Solar energy system is the earliest heat collector for realizing commercialized running, and the application being very suitable within the scope of middle low-temperature heat source is compared
In tower, dish-style concentrating collector, there are the advantages such as cost is relatively low, reliable and stable, the thermal efficiency is higher, device easy care, too
Positive energy heat utilization field has a extensive future.
The core equipment of solar parabolic through power generation system is exactly the slot light collection heat collector of front end, and primary structure is by throwing
Parabolic mirror converging device (abbreviation Jing Chang), groove type solar evacuated collector tube and relevant support frame structure three parts group
At optically focused feature belongs to typical line focus pattern.Wherein, Jing Chang and slot type evacuated collector tube are the core of slot light collection heat collector
Center portion part.Several groove type heat collectors are combined together by certain pattern series and parallel, just constitute entire solar-thermal generating system
The Sun Island unit.Light field, which undertakes the hot merit energy conversion device for rear end and provides, to be stablized, reliably inputs heat source, performance
Quality will directly influence the gross efficiency of whole system.
Currently, due to the own structural characteristics of traditional groove type heat collector, cause the capturing ability to sunray weaker, gather
Light is relatively low (normally only 50% or so).In addition, single mirror-reflection so that the slot type evacuated collector tube positioned at focal point exists
Circumferencial direction flux-density distribution is uneven, and the surface of thermal-collecting tube can be made to generate larger temperature gradient, cause the office of thermal-collecting tube
Portion's thermal deformation, it is final to generate unfavorable situation of the thermal stress compared with concentration, to seriously affect the service life of equipment, and then influence complete
The heat-economy of system and safety.Therefore, it is necessary to invent a kind of novel concentrating collector, optimize the structure of device to change
Become the paths approach of traditional heat collector, and strengthen the conversion capability that " light " arrives " heat ", reduces heat loss and extend equipment use
Service life, the final purpose realized photothermal conversion overall efficiency and improved.
Invention content
The purpose of the present invention is designing a kind of novel slot solar light-condensing and heat-collecting device, improves slot type evacuated collector tube and exist
The flux-density distribution of circumferencial direction improves the photothermal conversion ability of groove type solar light-condensing and heat-collecting device, reduces heat loss and prolongs
Long service life of equipment, the final purpose realized photothermal conversion overall efficiency and improved.
The technical scheme is that a kind of novel slot solar light-condensing and heat-collecting device, mainly by paraboloid trough type optically focused
Light condenser field, groove type solar evacuated collector tube 2 and the supporting rack 4 that heat collector 1 is constituted with Fresnel Lenses 3 form, and slot type is too
Solar energy vacuum thermal-collecting tube 2 is located at the focal position for the light condenser field that paraboloid trough type concentrating collector 1 is constituted with Fresnel Lenses 3
On, supporting rack 4 supports Fresnel Lenses 3 that it is made to be mounted on the frame body of paraboloid trough type concentrating collector 1.
The light condenser field is made of paraboloid trough type concentrating collector 1 and 3 two parts of Fresnel Lenses；Fresnel Lenses
3 be rectangle, and Fresnel Lenses 3 is located at the front of light condenser field focus, and paraboloid trough type concentrating collector 1 is located at light condenser field coke
The rear portion of point.
The middle section uneasiness overlapped is projected on the paraboloid trough type concentrating collector 1 with Fresnel Lenses 3 anti-loaded to penetrate
Minute surface.
The paraboloid trough type concentrating collector 1 is opening width 2.55m, element length 4m, 6m or 8m, peak value photo-thermal
Efficiency>70% light-duty heat accumulator.
The Fresnel Lenses 3 is made of tempered glass, is mounted in rectangular enclosure 5 with silica gel, Fresnel Lenses Unit 3
1~2m of length, width are 0.8~1m.
The groove type solar evacuated collector tube 2 is made of inner tube 201 and outer tube 202, and outer tube 202 is glass enclosure tube, interior
Pipe 201 is stainless steel tube, the helical rotors 6 being equipped in said inner tube 201.
The helical rotors 6 are made of spiral vane 7 and rotor shaft 8, and thermal-arrest is built in by end fixing piece 9
In the inner tube 201 of pipe.
The rotor shaft 8 is high-temperature alloy hollow pipe.
The helical rotors 6 are made of spiral vane 7, and the both ends of spiral vane 7, which are fixed on, is built in thermal-collecting tube
Inner tube 201 in.
The helical rotors 6 are made of symmetrical three helical blade 7, and screw pitch is 200mm or 400mm, and helical pitch is
400mm, 600mm or 800mm.
A kind of novel slot solar light-condensing and heat-collecting device of the present invention provided has the following advantages：
1. the light condenser field in the present invention is made of paraboloid trough type concentrating collector 1 and 3 two parts of Fresnel Lenses, luxuriant and rich with fragrance
Nie Er lens 3 are rectangle, and Fresnel Lenses 3 is located at the front of light condenser field focus, and paraboloid trough type concentrating collector 1 is located at poly-
The rear portion of light microscopic field focus, groove type solar evacuated collector tube 2 are located on the focal position of light condenser field, and Fresnel Lenses 3 will
Sunlight converges to the upper semicircumference of groove type solar evacuated collector tube 2, and sunlight is converged to slot by paraboloid trough type concentrating collector 1
The lower half circumference of formula solar vacuum heat-collecting pipe 2, makes groove type solar evacuated collector tube 2 be uniformly heated, and realizes slot type too
Solar energy vacuum thermal-collecting tube 2 is captured in the luminous energy of circumferencial direction transmitted radiation and the dual pattern of reflected radiation, is more captured too
Positive energy radiation energy reduces the temperature gradient of groove type solar evacuated collector tube 2 and local thermal deformation, it is true to improve groove type solar
The heat-economy of empty set heat pipe 2 and safety, from the service life for extending groove type solar evacuated collector tube 2.
2. the helical rotors 6 being equipped in the inner tube 201 of the groove type solar evacuated collector tube 2 in the present invention, will flow through
The heat-conducting liquid of inner tube 201 changes into rotational flow state from laminar condition, to make the heat-conducting liquid in inner tube 201 generate one
Fixed eddy flow and turbulivity improves the internal disturbance of heat-conducting liquid and mixes journey to increase temperature gradient in boundary layer region
Degree, realizes the purpose of augmentation of heat transfer, improves the heat transfer efficiency of groove type solar evacuated collector tube 2.
3. the novel slot solar light-condensing and heat-collecting device of the present invention can effectively reduce the heat-energy losses during optically focused, carry
The sunlight convergence effect of the system of liter, further increases the overall efficiency of groove type solar light-condensing and heat-collecting device, extends slot type too
The service life of positive energy light-condensing and heat-collecting device.
4. the novel slot solar light-condensing and heat-collecting device of the present invention is simple and reliable for structure, mature technology is fabricated to
This is low, and installation operation is simply easy.
Description of the drawings
Fig. 1 is a kind of novel slot solar concentrating collector overall structure installation diagram；
Fig. 2 is groove type solar evacuated collector tube assembly structure oblique view；
Fig. 3 is the built-in helical rotors structure A-A sectional views of groove type solar evacuated collector tube；
Fig. 4 is Fresnel Lenses vertical view；
Fig. 5 is a kind of left view of novel slot solar concentrating collector of Fig. 1.
Label is described as follows in attached drawing：
1. paraboloid trough type concentrating collector；2. groove type solar evacuated collector tube；201. inner tube；202. outer tube；3. luxuriant and rich with fragrance
Nie Er lens；4. supporting rack；5. rectangular enclosure；6. helical rotors；7. spiral vane；8. rotor shaft；9. end is fixed
Part.
Specific implementation mode
To keep the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention is further described in more detail.
Embodiment
A kind of novel slot solar concentrating collector device described in the present embodiment is shown in shown in Fig. 1 to Fig. 5.
As shown in Figure 1 and Figure 5, the novel slot solar concentrating collector device described in the present embodiment is mainly by paraboloid
4 groups of light condenser field, groove type solar evacuated collector tube 2 and the supporting rack that slot light collection heat collector 1 is constituted with Fresnel Lenses 3
At groove type solar evacuated collector tube 2 is supported on what paraboloid trough type concentrating collector 1 was constituted with Fresnel Lenses 3 by holder
On the focal position of light condenser field, the supporting rack 4 of triangle supports Fresnel Lenses 3 that it is made to be mounted on paraboloid trough type optically focused collection
On the frame body of hot device 1.
The light condenser field is made of paraboloid trough type concentrating collector 1 and 3 two parts of Fresnel Lenses；Such as Fig. 1 and Fig. 4
Shown, Fresnel Lenses 3 is rectangle, is made of tempered glass, is mounted in rectangular enclosure 5 with silica gel, Fresnel Lenses Unit 3
1~2m of length, width are 0.8~1m, and in the present embodiment, 3 element length of Fresnel Lenses is 2m, width 0.8m, Fei Nie
Your lens 3 are located at the front of light condenser field focus, play the role of transmission focusing sunlight, paraboloid trough type concentrating collector 1
Positioned at the rear portion of light condenser field focus, play the role of reflecting focusing sunlight.
In the present embodiment, on the paraboloid trough type concentrating collector 1 middle part overlapped is projected with Fresnel Lenses 3
Divide uneasy dress mirror surface.But to improve the utilization rate of sunlight as far as possible, mirror surface can be also installed.
The paraboloid trough type concentrating collector 1 is opening width 2.55m, element length 4m, 6m or 8m, peak value photo-thermal
Efficiency>70% light-duty heat accumulator.In the present embodiment, the paraboloid trough type concentrating collector 1 of use is opening width
2.55m, the peak light thermal efficiency that two element lengths are 6m>70% light-duty heat accumulator is connected in series.
As shown in Figures 2 and 3, the groove type solar evacuated collector tube 2 is made of inner tube 201 and outer tube 202, outer tube
202 be glass enclosure tube, and inner tube 201 is stainless steel tube, has plated film on the periphery of inner tube 201, between outer tube 202 and inner tube 201
It vacuumizes, the helical rotors 6 being equipped in said inner tube 201.
In the present embodiment, the helical rotors 6 are made of spiral vane 7 and rotor shaft 8, are fixed by end
Part 9 is built in the inner tube 201 of thermal-collecting tube.The rotor shaft 8 is high-temperature alloy hollow pipe.The helical rotors 6 by
Symmetrical three helical blade 7 is constituted, screw pitch 200mm, helical pitch 600mm.Helical rotors 6 are played the heat conduction of inner tube 201
Liquid changes into the effect of rotational flow state from laminar condition.
Furthermore it is also possible to helical rotors 6 are made of spiral vane 7, the both ends of spiral vane 7 are fixed on built-in
In the inner tube 201 of thermal-collecting tube.
When novel slot solar concentrating collector device works, the sunlight part into light condenser field passes through luxuriant and rich with fragrance alunite
Sunlight is converged to the upper semicircumference of groove type solar evacuated collector tube 2 by your lens 3, and another part passes through paraboloid trough type optically focused
Sunlight is converged to the lower half circumference of groove type solar evacuated collector tube 2 by heat collector 1, make groove type solar evacuated collector tube 2 by
Heat is more uniform, light of the realization groove type solar evacuated collector tube 2 in circumferencial direction transmitted radiation and the dual pattern of reflected radiation
It can capture, more capture solar radiation energy, reduce the temperature gradient of groove type solar evacuated collector tube 2 and local thermal change
Shape improves heat-economy and the safety of groove type solar evacuated collector tube 2, from extending groove type solar evacuated collector tube
2 service life.Paraboloid trough type concentrating collector 1 can realize synchronous sun tracking track, too convenient for multiple-unit novel slot
Positive energy concentrating collector device Collaborative Control.
The helical rotors 6 being equipped in the inner tube 201 of groove type solar evacuated collector tube 2 will flow through the heat conduction of inner tube 201
Liquid changes into rotational flow state from laminar condition, to make the heat-conducting liquid in inner tube 201 generate certain eddy flow and rapids
Mobility improves the internal disturbance and mixability of heat-conducting liquid to increase temperature gradient in boundary layer region, realizes and strengthens biography
The purpose of heat, improves the heat transfer efficiency of groove type solar evacuated collector tube 2.
Novel slot solar light-condensing and heat-collecting device can effectively reduce the heat-energy losses during optically focused, and lifting system is too
Sunlight convergence acts on, and further increases the overall efficiency of groove type solar light-condensing and heat-collecting device, extends slot type Salar light-gathering collection
The service life of thermal.
Novel slot solar light-condensing and heat-collecting device is simple and reliable for structure, mature technology, low manufacture cost, installation behaviour
Make simple be easy.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：It is still
Can be with technical scheme described in the above embodiments is modified, or which part technical characteristic is equally replaced
It changes；And these modifications or replacements, the essence for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution
God and range.
Claims (10)
1. a kind of novel slot solar light-condensing and heat-collecting device, it is characterized in that：Mainly by paraboloid trough type concentrating collector (1) with
Light condenser field, groove type solar evacuated collector tube (2) and supporting rack (4) composition that Fresnel Lenses (3) is constituted, groove type solar
Evacuated collector tube (2) is located at the focus position for the light condenser field that paraboloid trough type concentrating collector (1) is constituted with Fresnel Lenses (3)
It sets, supporting rack (4) support Fresnel Lenses (3) makes it be mounted on the frame body of paraboloid trough type concentrating collector (1).
2. a kind of novel slot solar light-condensing and heat-collecting device according to claim 1, it is characterized in that：The light condenser field
It is made of paraboloid trough type concentrating collector (1) and Fresnel Lenses (3) two parts；Fresnel Lenses (3) is rectangle, Fresnel
Lens (3) are located at the front of light condenser field focus, and paraboloid trough type concentrating collector (1) is located at the rear portion of light condenser field focus.
3. a kind of novel slot solar light-condensing and heat-collecting device according to claim 2, it is characterized in that：The parabolic troughs
The middle section uneasiness overlapped with Fresnel Lenses (3) projection on formula concentrating collector (1) fills mirror surface.
4. a kind of novel slot solar light-condensing and heat-collecting device according to claim 2, it is characterized in that：The parabolic troughs
Formula concentrating collector (1) is opening width 2.55m, element length 4m, 6m or 8m, the peak light thermal efficiency>70% light-duty collection
Heat channel.
5. a kind of novel slot solar light-condensing and heat-collecting device according to claim 2, it is characterized in that：The Fresnel is saturating
Mirror (3) is made of tempered glass, is mounted in rectangular enclosure (5) with silica gel, Fresnel Lenses (3) 1~2m of element length, width
For 0.8~1m.
6. a kind of novel slot solar light-condensing and heat-collecting device according to claim 1, it is characterized in that：The slot type sun
Energy evacuated collector tube (2) is made of inner tube (201) and outer tube (202), and outer tube (202) is glass enclosure tube, and inner tube (201) is stainless
Steel pipe, the interior helical rotors (6) being equipped with of said inner tube (201).
7. a kind of novel slot solar light-condensing and heat-collecting device according to claim 6, it is characterized in that：The spiral shape turns
Sub (6) are made of spiral vane (7) and rotor shaft (8), and the inner tube of thermal-collecting tube is built in by end fixing piece (9)
(201) in.
8. a kind of novel slot solar light-condensing and heat-collecting device according to claim 7, it is characterized in that：The rotor shaft
(8) it is high-temperature alloy hollow pipe.
9. a kind of novel slot solar light-condensing and heat-collecting device according to claim 6, it is characterized in that：The spiral shape turns
Sub (6) are made of spiral vane (7), and the both ends of spiral vane (7) are fixed in the inner tube (201) for being built in thermal-collecting tube.
10. a kind of novel slot solar light-condensing and heat-collecting device according to claim 6, it is characterized in that：The spiral shape
Rotor (6) is made of symmetrical three helical blade (7), and screw pitch is 200mm or 400mm, helical pitch 400mm, 600mm or 800mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810730610.5A CN108800616A (en) | 2018-07-05 | 2018-07-05 | A kind of novel slot solar light-condensing and heat-collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810730610.5A CN108800616A (en) | 2018-07-05 | 2018-07-05 | A kind of novel slot solar light-condensing and heat-collecting device |
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| CN108800616A true CN108800616A (en) | 2018-11-13 |
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| CN201810730610.5A Pending CN108800616A (en) | 2018-07-05 | 2018-07-05 | A kind of novel slot solar light-condensing and heat-collecting device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186202A (en) * | 2019-07-03 | 2019-08-30 | 吉林大学 | A kind of stirring continuous biomass hydrothermal pretreatment device certainly of Driven by Solar Energy |
| CN110454992A (en) * | 2019-07-19 | 2019-11-15 | 广东工业大学 | A kind of spinning Salar light-gathering solution regeneration system |
| CN112833568A (en) * | 2021-01-07 | 2021-05-25 | 南京师范大学 | Light-gathering and heat-collecting device and method based on rotary prism tracking |
| CN114576863A (en) * | 2022-04-07 | 2022-06-03 | 山东瑞光新能源科技有限公司 | Vacuum heat collecting tube with self-checking function |
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| CN104406312A (en) * | 2014-12-09 | 2015-03-11 | 中国科学院工程热物理研究所 | Transmission-reflection linear spotlight heat collector |
| CN204421389U (en) * | 2014-12-09 | 2015-06-24 | 中国科学院工程热物理研究所 | A kind of secondary condensation reflective-transmissive type parabolic trough type solar thermal collector |
| CN207196958U (en) * | 2017-09-13 | 2018-04-06 | 华北电力大学 | A kind of novel slot solar vacuum heat-collecting pipe device of interpolation fluid turbine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202885286U (en) * | 2012-10-25 | 2013-04-17 | 王晓岚 | Tank type heat collector for utilizing Fresnel linear focal lens to perform compound light gathering |
| CN104406312A (en) * | 2014-12-09 | 2015-03-11 | 中国科学院工程热物理研究所 | Transmission-reflection linear spotlight heat collector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110186202A (en) * | 2019-07-03 | 2019-08-30 | 吉林大学 | A kind of stirring continuous biomass hydrothermal pretreatment device certainly of Driven by Solar Energy |
| CN110454992A (en) * | 2019-07-19 | 2019-11-15 | 广东工业大学 | A kind of spinning Salar light-gathering solution regeneration system |
| CN112833568A (en) * | 2021-01-07 | 2021-05-25 | 南京师范大学 | Light-gathering and heat-collecting device and method based on rotary prism tracking |
| CN114576863A (en) * | 2022-04-07 | 2022-06-03 | 山东瑞光新能源科技有限公司 | Vacuum heat collecting tube with self-checking function |
| CN114576863B (en) * | 2022-04-07 | 2024-04-12 | 山东瑞光新能源科技有限公司 | Vacuum heat collecting tube with self-checking function |
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