CN114484897B - Double-flow-channel corrugated plate type solar heat collector - Google Patents
Double-flow-channel corrugated plate type solar heat collector Download PDFInfo
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- CN114484897B CN114484897B CN202210163744.XA CN202210163744A CN114484897B CN 114484897 B CN114484897 B CN 114484897B CN 202210163744 A CN202210163744 A CN 202210163744A CN 114484897 B CN114484897 B CN 114484897B
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- heat collecting
- heat
- plate type
- type solar
- corrugated plate
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- 239000011521 glass Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000012546 transfer Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 3
- 239000012774 insulation material Substances 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
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
- F24S10/50—Solar heat collectors using working fluids the working fluids being conveyed between plates
- F24S10/55—Solar heat collectors using working fluids the working fluids being conveyed between plates with enlarged surfaces, e.g. with protrusions or corrugations
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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
- F24S40/10—Protective covers or shrouds; Closure members, e.g. lids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/20—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/60—Thermal insulation
- F24S80/65—Thermal insulation characterised by the material
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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)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a double-flow passage corrugated plate type solar heat collector which comprises heat collecting glass, a heat collecting medium, a heat collecting surface, a main heat collecting pipeline, an auxiliary heat collecting pipeline, a bottom plate, a main flow passage, an auxiliary flow passage, a flow control valve, a frame and a back heat insulating layer, wherein the heat collecting surface is arranged on the heat collecting surface; the corrugated heat collecting surface and the bottom plate form a closed cavity, and the gap of the cavity is a main pipeline; the inlet pipeline and the outlet pipeline are both directly communicated with the main flow channel and the auxiliary flow channel. The surface of the corrugated plate type heat collecting surface is coated with lighting materials, and the upper part of the corrugated plate type heat collecting surface is provided with lighting glass; the heat collector has the advantages that the heat insulation materials are arranged on the side face and the back face of the heat collector, the sunlight collecting capacity is outstanding, the heat loss in the solar heat collecting process is reduced, and the heat collecting efficiency is obviously improved compared with that of a flat plate type solar heat collector.
Description
Technical Field
The invention relates to the technical field of renewable energy sources, in particular to a double-channel corrugated plate type solar heat collector.
Background
With the continuous reduction of the available amount of non-renewable energy, the utilization of renewable energy is the most convenient way for obtaining rich energy; compared with various renewable energy sources such as wind energy, biomass energy, tidal energy, hydroenergy and the like, solar energy resources are most easily obtained, so that the utilization of the solar energy resources to all aspects of our life can be greatly reduced.
The flat plate collector adopts the most common technical means of solar energy, the heat absorbing plate is used for absorbing the radiation energy of the sun, and the obtained energy is transferred to a heat transfer working medium in a heat conduction and convection heat transfer mode.
Disclosure of Invention
The invention aims to design and develop a double-flow-channel corrugated plate type solar heat collector, which improves the light absorption efficiency and the heat transfer efficiency by combining a heat collection surface and a heat collection medium, and simultaneously saves energy, further improves the heat collection efficiency and reduces the energy consumption by separating double heat collection flow channels.
The technical scheme provided by the invention is as follows:
a dual-channel corrugated plate type solar heat collector comprising:
heat collecting glass; and
the heat collecting surface is of a continuous wave-shaped structure with wave crests and wave troughs alternating, the wave crests and the heat collecting glass are provided with certain gaps and arranged at the lower part of the heat collecting glass, and an accommodating space is formed between the heat collecting surface and the heat collecting glass;
a heat collecting medium disposed in the receiving space between the heat collecting glass and the heat collecting surface;
one side surface of the bottom plate is propped against and fixedly connected with the wave trough of the heat collection surface, so that a plurality of main heat collection pipelines are formed between the bottom plate and the wave crest of the heat collection surface;
the plurality of auxiliary heat collecting pipes are fixedly connected with the other side surface of the bottom plate in an abutting mode, and correspond to the wave troughs of the heat collecting surface one by one respectively;
and the fluid working medium can flow in the plurality of main heat collecting pipes and the plurality of auxiliary heat collecting pipes to transfer heat.
Preferably, the method further comprises the following steps:
and a frame disposed at an outer side of the heat collecting glass, the heat collecting surface, the bottom plate and the plurality of sub heat collecting pipes, for fixing and supporting.
Preferably, the method further comprises the following steps:
and a back insulation layer disposed at an outer side of the plurality of sub heat collecting pipes.
Preferably, the frame further comprises:
a main flow passage connected with the plurality of main heat collecting pipes.
Preferably, the frame further comprises:
and the auxiliary flow passage is connected with the plurality of auxiliary heat collecting pipes.
Preferably, the primary flow channel and the secondary flow channel are isolated and arranged in an overlapping manner.
Preferably, the method further comprises:
and the flow control valves are arranged on the main flow channel and the auxiliary flow channel and are used for regulating the flow.
Preferably, the inclination angle of the double-channel corrugated plate type solar heat collector is 45 degrees.
Preferably, the heat collecting medium is in a liquid state.
Preferably, the surface of the heat collecting surface is coated with a lighting material.
The invention has the following beneficial effects:
(1) The double-flow-channel corrugated plate type solar heat collector designed and developed by the invention takes liquid as a heat transfer medium, the liquid heat transfer medium is various in types, the heat transfer efficiency is higher, and the double-flow-channel corrugated plate type solar heat collector can be freely selected according to different requirements and conditions.
(2) According to the corrugated plate type solar heat collector with the double channels, which is designed and developed by the invention, the liquid heat collecting medium is filled between the heat collecting glass and the heat collecting surface, so that incident sunlight in different wavelength ranges can be absorbed, light absorption is carried out to the maximum extent, and the refraction and scattering loss of the sunlight is reduced.
(3) The double-channel corrugated plate type solar heat collector designed and developed by the invention has the advantages that the heat collecting surface is specially corrugated, the two different heat collecting concave surfaces are alternately combined, the absorption and heat concentration of incident sunlight under different solar altitude angles can be improved, the flow of the flow channel can be respectively adjusted according to the heat collecting quantity at different heat collecting concave surfaces under different solar altitude angles by the separated double heat collecting flow channel designed for the two heat collecting concave surfaces, the energy is saved, and the heat collecting efficiency is improved.
Drawings
Fig. 1 is a schematic front view of a double-channel corrugated plate type solar heat collector according to the present invention.
Fig. 2 is a schematic rear view of the double-channel corrugated plate type solar heat collector of the present invention.
FIG. 3 is a schematic sectional view of a solar collector with a double-channel corrugated plate according to the present invention.
Detailed Description
The present invention is described in further detail below in order to enable those skilled in the art to practice the invention with reference to the description.
As shown in fig. 1, 2 and 3, the present invention provides a dual-channel corrugated plate type solar heat collector, which comprises:
the heat collecting glass 110, the heat collecting surface 120, the main heat collecting pipe 130, the heat collecting medium 140, the bottom plate 150, the sub heat collecting pipe 160, the back insulating layer 170, the frame 180, the main flow passage 191, the sub flow passage 192, and the flow control valve 193.
The frame 180 is a hollow structure, the heat collecting glass 110 is fixed inside the frame 180, the heat collecting surface 120 is disposed at the lower portion of the heat collecting glass 110 at intervals, a heat collecting medium 140 is disposed between the heat collecting glass 110 and the heat collecting surface 120, the bottom plate 150 is fixed inside the frame 180, and one side of the bottom plate 150 is connected with a wave trough (a groove position) of the heat collecting surface 120, so that a plurality of closed cavities, i.e., a plurality of main heat collecting pipes 130, are formed between the bottom plate 150 and the heat collecting surface 120, a plurality of auxiliary heat collecting pipes 160 are connected to the other side of the bottom plate 150, and the plurality of auxiliary heat collecting pipes 160 are respectively disposed in one-to-one correspondence with the wave trough of the heat collecting surface 120.
The frame 180 is provided with a main flow passage 191 and an auxiliary flow passage 192 which are isolated from each other and overlapped, the plurality of main heat collecting pipes 130 are all communicated with the main flow passage 191, the plurality of auxiliary heat collecting pipes 160 are all communicated with the auxiliary flow passage 192, and the inlet pipe and the outlet pipe are both directly communicated with the main flow passage 191 and the auxiliary flow passage 192.
The flow control valve 193 is provided on the main flow passage 191 and the sub-flow passage 192, and is used for adjusting the flow of the main flow passage 191 and the sub-flow passage 192.
In this embodiment, the frame 180 is provided at the inner side thereof with the heat insulating material, and at the same time, the back insulation layer 170 is also provided at the outer side of the plurality of secondary heat collecting pipes 160.
In the embodiment, the surface of the corrugated plate type heat collecting surface is coated with daylighting materials.
In this embodiment, the heat collecting medium 140 is in a liquid state, and preferably, a nanofluid is used.
The specific working process of the invention is as follows:
when sunlight radiates to the double-channel corrugated plate type solar heat collector through the heat collecting glass 110, one part of the sunlight is absorbed by the heat collecting medium 140, and the rest part of the sunlight is absorbed by the heat collecting surface 120, the heat collecting surface 120 with the double-groove corrugated plate structure can greatly increase the heat collecting area and reduce the refraction loss of light, the heat collecting medium 140 and the heat collecting glass 110 can recycle the sunlight refracted by the heat collecting surface 120, heat is transferred to a fluid working medium in the main heat collecting pipe 130 through heat conduction and convection heat exchange, and then the fluid working medium is collected by the main channel 191 and is used by a user; the solar energy collection efficiency of the gap portion between the adjacent main heat collection pipes 191 is high, a large amount of heat is accumulated therein, the heat is not easily collected by the main flow passage 191 systematically, the heat is collected by the sub heat collection pipe 160 on the back side of the collector through the sub flow passage 192 for the user to use, the flow control valve 193 can adjust the flow rates of the main flow passage 191 and the sub flow passage 192 according to the solar radiation amount and the user's use requirement, the main heat collection pipe 130 and the sub heat collection pipe 160 are separated by the bottom plate 150, the surface of the sub heat collection pipe 160 is the back heat insulation layer 170, and the frame 180 plays a role in fixing and maintaining the structural strength.
The installation inclination angle, the inlet flow and the thickness of the heat collecting glass of the heat collector influence the temperature difference between the inlet and the outlet of the double-channel corrugated flat plate heat collector, the heat collecting capacity and the heat collecting efficiency, the change of the inclination angle of the heat collector influences the flowing speed of the working medium in the channel, indirectly influences the heat absorption capacity of the working medium, and the change of the thickness of the heat collecting glass influences the refractive power of sunlight and the heat insulation effect of the heat collector.
Tests prove that when the inclination angle of the heat collector is 45 degrees, the heat collection temperature difference, the heat collection efficiency and the heat collection efficiency of the heat collector are all higher than the inclination angle of 30 degrees and the inclination angle of 60 degrees, the heat collection efficiency is also related to the temperature difference and the flow, the smaller the flow is, the larger the temperature difference at the inlet and the outlet of the heat collector is, but the lower the heat collection efficiency is.
According to the double-flow-passage corrugated plate type solar heat collector designed and developed by the invention, the solar heat collection efficiency is effectively improved by combining the solar heat collection surface with the novel heat collection flow passage system, the solar heat collector has outstanding sunlight collection capacity, the heat loss in the solar heat collection process is reduced, and the heat collection efficiency is obviously improved compared with that of a flat plate type solar heat collector.
While embodiments of the invention have been described above, it is not intended to be limited to the details shown, particular embodiments, but rather to those skilled in the art, and it is to be understood that the invention is capable of numerous modifications and that various changes may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides a double fluid passage buckled plate type solar heat collector which characterized in that includes:
heat collecting glass; and
the heat collecting surface is of a continuous wave-shaped structure with wave crests and wave troughs alternating, the wave crests and the heat collecting glass are provided with certain gaps and arranged at the lower part of the heat collecting glass, and an accommodating space is formed between the heat collecting surface and the heat collecting glass;
a heat collecting medium disposed in the receiving space between the heat collecting glass and the heat collecting surface;
one side surface of the bottom plate is abutted against and fixedly connected with the wave trough of the heat collection surface, so that a plurality of main heat collection pipelines are formed between the wave crests of the bottom plate and the heat collection surface;
the plurality of auxiliary heat collecting pipes are fixedly connected with the other side surface of the bottom plate in an abutting mode, and correspond to the wave troughs of the heat collecting surface one by one respectively;
and the fluid working medium can flow in the plurality of main heat collecting pipes and the plurality of auxiliary heat collecting pipes to transfer heat.
2. The dual-channel corrugated plate type solar heat collector of claim 1, further comprising:
and a frame disposed at an outer side of the heat collecting glass, the heat collecting surface, the bottom plate and the plurality of sub heat collecting pipes, for fixing and supporting.
3. The dual-channel corrugated plate type solar heat collector of claim 2, further comprising:
and a back insulation layer disposed at an outer side of the plurality of sub heat collecting pipes.
4. The dual flow channel corrugated plate type solar heat collector of claim 3, wherein the frame further comprises:
a main flow passage connected with the plurality of main heat collecting pipes.
5. The dual-channel corrugated plate type solar heat collector of claim 4, wherein the frame further comprises:
and the auxiliary flow passage is connected with the plurality of auxiliary heat collecting pipes.
6. The dual-channel corrugated plate type solar thermal collector of claim 5 wherein the primary channels and secondary channels are isolated and stacked.
7. The dual-channel corrugated plate type solar heat collector of claim 6, further comprising:
and the flow control valves are arranged on the main flow channel and the auxiliary flow channel and are used for regulating the flow.
8. The dual-channel corrugated plate type solar heat collector of claim 1, wherein the inclination angle of the dual-channel corrugated plate type solar heat collector is 45 °.
9. The dual flow channel corrugated plate type solar heat collector of claim 1, wherein the heat collecting medium is in a liquid state.
10. The dual-channel corrugated plate type solar heat collector as claimed in claim 9, wherein a lighting material is sprayed on the surface of the heat collecting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210163744.XA CN114484897B (en) | 2022-02-22 | 2022-02-22 | Double-flow-channel corrugated plate type solar heat collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210163744.XA CN114484897B (en) | 2022-02-22 | 2022-02-22 | Double-flow-channel corrugated plate type solar heat collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114484897A CN114484897A (en) | 2022-05-13 |
| CN114484897B true CN114484897B (en) | 2022-10-11 |
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| CN202210163744.XA Expired - Fee Related CN114484897B (en) | 2022-02-22 | 2022-02-22 | Double-flow-channel corrugated plate type solar heat collector |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2001289642A1 (en) * | 2000-07-18 | 2002-05-02 | F. Hoffmann-La Roche Ag | Aniline derivatives |
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| CN207797416U (en) * | 2017-12-12 | 2018-08-31 | 山东哲能赫太阳能有限公司 | A kind of waveform plate core solar thermal collector |
| EP3671061A1 (en) * | 2018-12-20 | 2020-06-24 | Osakeyhtiö lamit.fi | Solar thermal collector |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1303503B1 (en) * | 2000-07-18 | 2010-01-27 | F. Hoffmann-La Roche Ag | Aniline derivatives |
| US20050211238A1 (en) * | 2004-03-23 | 2005-09-29 | Archibald John P | Low cost transpired solar collector |
-
2022
- 2022-02-22 CN CN202210163744.XA patent/CN114484897B/en not_active Expired - Fee Related
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2001289642A1 (en) * | 2000-07-18 | 2002-05-02 | F. Hoffmann-La Roche Ag | Aniline derivatives |
| CN2586105Y (en) * | 2002-12-04 | 2003-11-12 | 孙伯鲁 | Focused solar water heater with vacuum metallic heat pipe |
| CN201401971Y (en) * | 2009-03-25 | 2010-02-10 | 江苏大学 | High-efficient trapezoidal baffled solar air heat collection and storage device |
| CN102605906A (en) * | 2011-01-20 | 2012-07-25 | 无锡合家欢低碳科技有限公司 | Ceramic solar hot water tile |
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| JP2013096613A (en) * | 2011-10-31 | 2013-05-20 | Takasago Thermal Eng Co Ltd | Heat exchange panel |
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| CN203132158U (en) * | 2013-03-27 | 2013-08-14 | 山东鑫乐新能源科技有限公司 | Flat-plate solar collector capable of internally gathering light |
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| EP3671061A1 (en) * | 2018-12-20 | 2020-06-24 | Osakeyhtiö lamit.fi | Solar thermal collector |
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| Publication number | Publication date |
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| CN114484897A (en) | 2022-05-13 |
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