CN114739019B - High-efficiency flat plate collector based on rotary fins - Google Patents
High-efficiency flat plate collector based on rotary fins Download PDFInfo
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- CN114739019B CN114739019B CN202210411827.6A CN202210411827A CN114739019B CN 114739019 B CN114739019 B CN 114739019B CN 202210411827 A CN202210411827 A CN 202210411827A CN 114739019 B CN114739019 B CN 114739019B
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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
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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
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/60—Details of absorbing elements characterised by the structure or construction
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- 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
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- 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
- F24S2080/03—Arrangements for heat transfer optimization
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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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- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a high-efficiency flat plate collector based on rotary fins, which comprises a PC transparent cover plate, a fixing frame, a heat absorbing plate, an aluminum metal shell, a columnar turbulence component, an air flow inlet and an air flow outlet, wherein the aluminum metal shell is a shell with an open upper port; one side of the aluminum metal shell is provided with an air flow inlet, the other side of the aluminum metal shell is provided with an air flow outlet, the air flow inlet is connected with the fan, and the heat collection cavity is respectively communicated with the air flow inlet and the air flow outlet; the columnar turbulent flow component comprises a columnar turbulent flow element, a plurality of guide vanes and a base. The invention can effectively destroy the boundary layer, enhance the turbulence degree and effectively improve the heat transfer efficiency between the wall surface of the heat absorbing plate and the heat exchange working medium.
Description
Technical Field
The invention relates to a solar flat plate collector, in particular to a high-efficiency flat plate collector based on rotary fins, which can strengthen heat transfer.
Background
Solar energy is used as a renewable energy source which has huge reserves, strong sustainability, green, clean and harmless and is convenient to obtain, and plays an irreplaceable role in the development process of human society. The solar heat collector is a key component of a solar heat utilization device and mainly comprises a transparent cover plate, a heat absorbing plate, a heat insulating material, a bottom plate and a frame. The solar flat plate collector has the characteristics of simple structure, low cost and easy installation, and is widely applied to the aspects of building heating, living and industrial water supply, drying equipment development and the like.
The fins in the existing flat plate collector are of a fixed structure, when a heat exchange working medium flows through a heat exchange channel, impurities doped in the heat exchange working medium can cover the surface of a heat absorption plate during flowing, so that the heat absorption plate is difficult to clean, the absorbed heat is reduced, and the heat collection efficiency is seriously affected; meanwhile, heat exchange cavities can be generated in the heat exchange channels, the mixing degree of heat exchange working media is reduced, and the heat of the heat collecting plate cannot be efficiently and uniformly absorbed. The heat exchange working medium flows in the heat exchange channel, and because the flow speed is too low, internal impurities can cover the surface of the heat absorption plate, so that the boundary layer is too thick, and heat cannot be rapidly transferred from the heat absorption plate to the heat exchange working medium. Meanwhile, most of heat of the heat absorbing plate is transferred to the bottom working medium, and the heat exchanging working medium far away from the heat absorbing plate obtains less heat and flows out of the heat exchanging channel, so that the heat of the heat absorbing plate cannot be efficiently and uniformly transferred to all the heat exchanging working media.
Disclosure of Invention
The invention aims to provide a high-efficiency flat plate collector based on rotary fins, which is used for solving the problems of uniform mixing of heat exchange working media and high-efficiency heat exchange between the heat exchange working media and a heat absorption plate.
The technical scheme adopted for solving the technical problems is as follows: the high-efficiency flat plate heat collector based on the rotary fins comprises a PC transparent cover plate, a fixing frame, heat absorbing plates, an aluminum metal shell, a columnar turbulence assembly, an air flow inlet and an air flow outlet, wherein the aluminum metal shell is a shell with an open upper port, the inner wall of the aluminum metal shell is provided with a heat insulation layer, the heat absorbing plates are horizontally laid on the bottom surface of the heat insulation layer, the columnar turbulence assembly is vertically and horizontally arranged on the light collecting surface of the heat absorbing plates, the upper port of the aluminum metal shell is sealed by the PC transparent cover plate and a heat collecting cavity is formed by the PC transparent cover plate, and the fixing frame fixes the PC transparent cover plate and the aluminum metal shell together from the periphery; one side of the aluminum metal shell is provided with an air flow inlet, the other side of the aluminum metal shell is provided with an air flow outlet, the air flow inlet is connected with the fan, and the heat collection cavity is respectively communicated with the air flow inlet and the air flow outlet;
the columnar turbulent flow component comprises a columnar turbulent flow element, a plurality of guide vanes and a base, wherein the guide vanes are fixed on the columnar turbulent flow element along the circumferential direction, the guide vanes are wound outside the columnar turbulent flow element in a rotating manner, and the lower end surface of the columnar turbulent flow element is fixed on the bearing inner ring of the base; the base adopts a deep groove ball bearing structure, the base comprises a bearing inner ring, a bearing outer ring, a retainer and a plurality of steel balls, the retainer is arranged between the bearing inner ring and the bearing outer ring and is cylindrical, a plurality of ball holes are uniformly formed in the circumferential direction of a retainer cylinder body, the steel balls are respectively arranged in the ball holes of the retainer, the steel balls can freely roll in the ball holes, arc-shaped grooves are formed in the positions, corresponding to the steel balls, of the bearing inner ring and the steel balls, the retainer is fastened on the bearing outer ring, and the bearing outer ring is fixed on the heat absorbing plate.
According to the scheme, the columnar turbulence element is welded with the four guide vanes, the four guide vanes are fixed on the columnar turbulence element along the curved surface to form a vortex shape, the guide vanes are perpendicular to the flow direction of the working medium, after the fan is started, the air flow can drive the fins to rotate at a high speed when flowing along the pipeline, the heat exchange working medium is uniformly mixed, and the heat exchange cavity is greatly reduced.
In the scheme, the columnar turbulent flow component is also plated with the heat absorption coating, so that the heat exchange area and the heat absorption capacity for solar radiation can be increased.
In the scheme, the air flow inlet is formed by 2 rows of round holes with the same size and 4 rows, each round hole is opposite to the corresponding guide vane, and after the fan is started, air flows along the round holes of the upper row to drive the guide vanes to rotate; and the guide vane guides the air flow flowing from the circular holes of the lower row. And take away the heat on the absorber plate, make the air current of different positions mix fully, further increase the air current and mix the degree and make it fully heat transfer.
In the scheme, the air flow outlet consists of 1 row of 4 round holes with the same size.
The invention has the following beneficial effects:
1. the base of the turbulence assembly provided by the invention can be used as the protrusion of the heat absorption plate to effectively destroy the boundary layer of the wall surface of the heat absorption plate, improve the turbulence degree and enhance the heat transfer efficiency. The fan is started to guide air flow into the heat collector, and when the air flow flows through the surface of the heat absorbing plate, a boundary layer is formed in a near wall area due to the viscous effect. In the boundary layer, heat exchange mainly depends on a heat conduction mode, because the thickness of the boundary layer has great influence on heat exchange. The thinner the thickness, the smaller the thermal resistance and the more intense the heat exchange. The turbulent flow assembly base is directly contacted with the wall surface of the heat absorption plate, so that a boundary layer can be effectively destroyed, and the turbulence degree is enhanced. Therefore, the invention can effectively improve the heat transfer efficiency between the wall surface of the heat absorbing plate and the heat exchange working medium.
2. The base of the turbulence assembly adopts a deep groove ball bearing structure, the outer ring of the bearing is fixed on the heat absorbing plate, the inner ring of the bearing is connected with the columnar turbulence element, a plurality of retainers which are arranged in an annular array form are arranged between the inner ring and the outer ring of the bearing, and the steel balls are arranged in pockets of the retainer units. The structure can ensure that the outer ring of the bearing is a fixed structure, the inner ring of the bearing is a movable structure, and the sliding friction force generated when the inner ring of the bearing moves relatively can be reduced when the air flow drives the ribs to rotate, so that the ribs rotate at a high speed.
3. Four guide sheets fixed at a certain angle are welded on the side surface of the columnar turbulent flow component in the turbulent flow component, and the guide sheets are kept perpendicular to the flowing direction of the heat exchange working medium. The fan is started to guide air flow into the heat collector channel, on one hand, the air flow entering from the upper inlet can drive the fins to rotate, and meanwhile, the fins guide and transport the air flow which flows through the lower inlet and has undergone heat exchange to the upper layer of the heat exchange channel, so that the heat of the heat absorption plate is efficiently and uniformly transferred to all working media in the heat exchange channel. The heat exchange medium flows out of the heat exchange channel due to the fact that inertia is generated when fluid flows, the heat exchange medium entering the heat exchange channel can flow transversely due to the inertia, the heat obtained by the heat exchange medium on the top layer is small, namely, the heat obtained by the heat exchange medium in the heat exchange channel is uneven, the density of the fluid is uneven, and the heat exchange degree is different. On the other hand, the rotating ribs can effectively prevent the mixed impurities in the air flow from accumulating on the surface of the heat absorption plate, and increase the absorption capacity of the heat absorption plate. The heat exchange working medium is characterized in that when flowing through the heat exchange channel, impurities doped in the heat exchange working medium can cover the surface of the heat absorption plate when flowing, so that the heat absorption plate is difficult to clean, the absorbed heat is reduced, and the heat collection efficiency is seriously affected. Therefore, the rotary flow guide fin structure is adopted, so that the fluid entering the channel at the initial stage and the fluid subjected to partial heat exchange can be subjected to full heat exchange, and the fluid with lower temperature and the fluid with higher temperature after heat exchange can be fully mixed, so that the fluid in the heat exchange channel can be subjected to efficient heat exchange, and the heat absorption is more uniform.
4. The upper part of the columnar turbulent flow component is also plated with a heat absorption coating, and the air flow entering from the lower row inlet after the fan is started can exchange heat with the columnar turbulent flow component besides the heat exchange with the boundary layer on the surface of the heat absorption plate. The amount of absorption of solar radiation and the amount of heat exchange with the air stream can be further increased.
5. Compared with a flat plate collector adopting a fixed rib structure, the rotary flow guide rib structure can increase the contact area with the ribs, and can further increase the mixing degree between heat exchange working media when the air flow drives the ribs to rotate, so that the heat collector can efficiently and uniformly obtain heat.
Drawings
Fig. 1 is a front view of the present invention.
FIG. 2 is a view of the airflow inlet flow path position with A-A plane.
FIG. 3 is a view of the airflow outlet flow path with a B-B planer surface.
Fig. 4 is a top view of a C-C plane.
Fig. 5 is a perspective view of the cylindrical spoiler assembly.
Fig. 6 is a view showing a structure of a base of the spoiler assembly.
Fig. 7 is a view showing a structure of the plane D-D in fig. 6.
In the figure: 1PC transparent cover plate, 2 fixing frame, 3 absorber plate, 4 heat insulation layer, 5 aluminium metal shell, 6 column vortex subassembly, 7 base, 8 fans, 9 one drags eight air current pipelines, 10 air current inlet, 11 air current export, 6-1 guide vane, 6-2 column vortex component, 7-1 bearing inner race, 7-2 bearing outer race, 7-3 holder, 7-4 steel ball.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
the high-efficiency flat plate collector based on the rotary fins comprises a PC transparent cover plate 1, a fixing frame 2, a heat absorbing plate 3, an aluminum metal shell 5, a columnar turbulence component 6, an air flow inlet 10 and an air flow outlet 11, wherein the aluminum metal shell 5 is a shell with an open upper port, the inner wall of the aluminum metal shell 5 is provided with a heat insulating layer 4, the heat absorbing plate 3 is horizontally paved on the bottom surface of the heat insulating layer 4, the columnar turbulence component 6 is vertically and horizontally arranged on the light collecting surface of the heat absorbing plate 3, the upper port of the aluminum metal shell 5 is sealed by the PC transparent cover plate 1 to form a heat collecting cavity, and the PC transparent cover plate 1 and the aluminum metal shell 5 are fixed together by the fixing frame 2 from the periphery; one side of the aluminum metal shell 5 is provided with an air inlet 10, the other side is provided with an air outlet 11, the air inlet 10 is connected with the fan 8 through an eight-air-flow pipeline 9, and the heat collection cavity is respectively communicated with the air inlet 10 and the air outlet 11. The columnar turbulence assemblies 6 are arranged on the heat absorbing plate 3 in a vertically and horizontally spaced mode, so that a wall boundary layer can be effectively damaged, and the turbulence degree of working media is further increased.
The left and right sides of the heat insulation layer 4 are higher than the upper surface of the heat absorbing plate 3, the PC transparent cover plate 1 is arranged on the upper parts of the left and right sides of the heat insulation layer 4, the fixing frame 2 is arranged outside the PC transparent cover plate 1 and the aluminum metal shell 5 and used for fixing and sealing, and the air flow pipeline is connected with the fan 8 and the air flow inlet 10.
The columnar turbulent flow assembly 6 comprises a columnar turbulent flow element 6-2, four guide vanes 6-1 and a base, wherein the four guide vanes 6-1 are fixed on the columnar turbulent flow element 6-2 along the circumferential direction, the four guide vanes 6-1 are wound outside the columnar turbulent flow element 6-2 in a rotating mode, and the lower end face of the columnar turbulent flow element 6-2 is fixed on a bearing inner ring 7-1 of the base 7.
The base 7 of the columnar turbulent flow component 6 adopts a deep groove ball bearing structure, the base 7 comprises a bearing inner ring 7-1, a bearing outer ring 7-2, a retainer 7-3 and a plurality of steel balls 7-4, the bearing outer ring 7-2 is fixed on the heat absorbing plate 3, the bearing inner ring 7-1 is connected with the columnar turbulent flow component 6-2, the retainer 7-3 with a plurality of circular holes arranged in an annular array form is arranged between the bearing inner ring and the bearing outer ring, the steel balls 7-4 are arranged in the circular holes of the retainer 7-3, the diameter of the steel balls is smaller than that of the circular holes, and the retainer 7-3 is fastened on the bearing outer ring 7-2. The structure can ensure that the bearing outer ring 7-2 is a fixed structure, the bearing inner ring 7-1 is a movable structure, and meanwhile, the steel balls 7-4 are uniformly distributed between the inner ring and the outer ring by means of the round holes of the retainer 7-3 and prevent falling off, so that sliding friction force generated by the bearing inner ring during relative movement can be reduced, the fins rotate at a high speed, and pressure drop generated by the fins on airflow is reduced; meanwhile, the boundary layer of the wall surface can be effectively destroyed. The base 7 adopts a deep groove ball bearing structure, has small dynamic friction coefficient and can bear radial load and axial load simultaneously.
The bearing outer ring 7-2 of the spoiler assembly base and the heat absorbing plate 3 are fixed in a welding mode, the retainer 7-3 is fastened on the bearing outer ring 7-2, and the bearing inner ring 7-1 and the lower end face of the columnar spoiler element 6-2 are fixed in a welding mode.
The base adopts a deep groove ball bearing structure, and the rolling rotation mode can reduce the resistance generated when the rib rotates along with the airflow, so that the rib can rotate at a high speed.
The guide vane 6-1 is a fin and is a guide sheet, and four guide sheets are welded on the side surface of the columnar turbulence element in a seamless manner and are perpendicular to the flow direction of the working medium inlet. The fan is started, external air flow flowing in from the upper inlet enters the heat collection cavity of the heat collector along with the pipeline, and kinetic energy generated by the external air flow drives the fins to rotate and generate vortex, so that the mixing degree of the air flow is increased. The flow guiding sheet can guide the flow of the heat-exchanged air entering from the lower inlet, so that the fluid entering the channel at the initial stage and the fluid after partial heat exchange can be fully exchanged, and the fluid with lower temperature and the fluid with higher temperature after heat exchange can be fully mixed, so that the heat exchange is more uniform.
The columnar turbulence component 6 and the heat absorbing plate 3 are both plated with heat absorbing coatings, so that the heat absorbing capacity of the heat absorbing plate for solar radiation and the heat exchanging capacity between the heat absorbing plate and heat exchanging airflow are further increased.
The air flow inlet is 2 rows of 4 rows of round holes with the same size, and the position of the round hole inlet is opposite to the guide vane 6-1 of the rotary rib. Each air inlet 10 is connected with the fan 8 through an eight-air-flow pipeline 9, and after the fan 8 is started, air flows along the upper row of round holes to drive the ribs to rotate; and meanwhile, the guide vane 6-1 guides the air flow flowing from the circular holes of the lower row and takes away heat on the heat absorbing plate, so that the air flows at different positions are fully mixed, and the mixing degree of the air flows is further increased to enable the air flows to fully exchange heat. The air flow outlet consists of 1 row of 4 round holes with the same size.
The working principle of the invention is as follows:
in the invention, columnar turbulence assemblies 6 with bases 7 are fixed on the heat absorbing plate at intervals in the longitudinal and transverse directions, the rib bases adopt deep groove ball bearing structures, the bearing inner ring 7-1 is connected with the lower end face of the columnar turbulence element 6-2, and four diversion sheets fixed at a certain inclination angle and keeping a rotary shape are welded on the side surfaces of the diversion sheets and keep the direction vertical to the flowing direction of working media. The contact area and the mixing degree of the heat exchange working medium can be increased to the greatest extent by adopting the assembly. When the fan is started and the air flows into the channel, on one hand, the fins can be driven to rotate, the contact area and the mixing degree are increased, the heat exchange working medium of each part in the heat exchange channel is efficiently and uniformly heated, and the problem of longitudinal flow of the heat exchange working medium in the heat exchange channel is solved; on the other hand, the base adopts a deep groove ball bearing structure, and the structure rotates in a rolling way, so that the sliding friction force generated when the bearing inner ring rotates can be reduced, and the rib can rotate at a high speed; the heat absorber plate can also be used as a protrusion of the heat absorber plate to destroy a surface boundary layer, so that the turbulence degree is improved; besides, besides the heat absorbing plate 3, the columnar turbulence component 6 is also plated with a heat absorbing coating, so that the heat exchanging area and the heat absorbing capacity for solar radiation can be increased.
According to the invention, the rotary fins can drive the fins to rotate by utilizing kinetic energy generated when airflow flows, so that the airflow is fully mixed, the heat exchange area is increased, the heat exchange effect is enhanced, and the efficient heat exchange of the solar flat plate collector is realized.
The flow disturbing device has a simple structure and is convenient to assemble, the rib can destroy a laminar boundary layer, the exchange of the mass and the momentum of fluid micro-clusters of the boundary layer and micro-clusters of a main flow area is enhanced, the base bearing structure can reduce the sliding friction force generated when working medium flows to drive the rib to rotate and the pressure drop of the rib to air flow, so that the rib rotates at a high speed, the mixing degree and the contact area of a heat exchange working medium are further improved, and besides the heat absorbing plate, the columnar flow disturbing component is also plated with a heat absorbing coating, and the absorption capacity of solar radiation and the heat exchange capacity between the air flows are increased. Therefore, the rotary fin turbulence device not only can enhance the heat transfer efficiency of the heat collector, but also can enable the heat exchange working medium to efficiently and uniformly obtain heat, and improves the heat utilization rate of the heat collector.
The invention solves the problems of uneven heat exchange between the heat exchange air flow and the heat absorbing plate 3 and larger pressure drop between the heat exchange air flow and the fixed fins in the existing heat exchange channel of the flat plate heat collector adopting the fixed fin structure. In the invention, the fan 8 introduces air flow into the heat collector, and the air flow drives the fins to rotate, so that the air mixing degree can be enhanced, and the heat exchange cavity and the air pressure drop can be greatly reduced.
Claims (5)
1. A high-efficient flat plate collector based on rotatory fin, its characterized in that: the high-efficiency flat plate heat collector based on the rotary fins comprises a PC transparent cover plate, a fixing frame, heat absorbing plates, an aluminum metal shell, a columnar turbulence assembly, an air flow inlet and an air flow outlet, wherein the aluminum metal shell is a shell with an open upper port, the inner wall of the aluminum metal shell is provided with a heat insulation layer, the heat absorbing plates are horizontally laid on the bottom surface of the heat insulation layer, the columnar turbulence assembly is vertically and horizontally arranged on the light collecting surface of the heat absorbing plates, the upper port of the aluminum metal shell is sealed by the PC transparent cover plate and a heat collecting cavity is formed by the PC transparent cover plate, and the fixing frame fixes the PC transparent cover plate and the aluminum metal shell together from the periphery; one side of the aluminum metal shell is provided with an air flow inlet, the other side of the aluminum metal shell is provided with an air flow outlet, the air flow inlet is connected with the fan, and the heat collection cavity is respectively communicated with the air flow inlet and the air flow outlet;
the columnar turbulent flow component comprises a columnar turbulent flow element, a plurality of guide vanes and a base, wherein the guide vanes are fixed on the columnar turbulent flow element along the circumferential direction, the guide vanes are wound outside the columnar turbulent flow element in a rotating manner, and the lower end surface of the columnar turbulent flow element is fixed on the bearing inner ring of the base; the base adopts a deep groove ball bearing structure, the base comprises a bearing inner ring, a bearing outer ring, a retainer and a plurality of steel balls, the retainer is arranged between the bearing inner ring and the bearing outer ring and is cylindrical, a plurality of ball holes are uniformly formed in the circumferential direction of a retainer cylinder body, the steel balls are respectively arranged in the ball holes of the retainer, the steel balls can freely roll in the ball holes, arc-shaped grooves are formed in the positions, corresponding to the steel balls, of the bearing inner ring and the steel balls, the retainer is fastened on the bearing outer ring, and the bearing outer ring is fixed on the heat absorbing plate.
2. The rotating fin-based high efficiency flat plate collector according to claim 1, wherein: the columnar turbulence element is welded with four guide vanes, the four guide vanes are fixed on the columnar turbulence element along the curved surface to form a vortex shape, and the guide vanes are perpendicular to the flowing direction of the working medium.
3. The rotating fin-based high efficiency flat plate collector as claimed in claim 2, wherein: and a heat absorption coating is also plated outside the columnar turbulence component.
4. A high efficiency flat plate collector based on rotating fins as claimed in claim 3, wherein: the air inlet is formed by 2 rows of round holes with the same size and 4 rows, each round hole is opposite to the corresponding guide vane, and after the fan is started, air flows along the round holes of the upper row to drive the guide vanes to rotate; and meanwhile, the guide vanes guide the air flow flowing from the lower row of round holes and take away heat on the heat absorbing plate, so that the air flows at different positions are fully mixed, the mixing degree of the air flows is increased, and the heat exchange is fully performed.
5. The rotating fin-based high efficiency flat plate collector as claimed in claim 4, wherein: the air flow outlet consists of 1 row of 4 round holes with the same size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210411827.6A CN114739019B (en) | 2022-04-19 | 2022-04-19 | High-efficiency flat plate collector based on rotary fins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210411827.6A CN114739019B (en) | 2022-04-19 | 2022-04-19 | High-efficiency flat plate collector based on rotary fins |
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| Publication Number | Publication Date |
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| CN114739019A CN114739019A (en) | 2022-07-12 |
| CN114739019B true CN114739019B (en) | 2023-06-23 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003314901A (en) * | 2002-04-19 | 2003-11-06 | Matsushita Electric Ind Co Ltd | Solar energy collector |
| JP2006343027A (en) * | 2005-06-08 | 2006-12-21 | Rinnai Corp | Heat exchange arrangement |
| CN107238215A (en) * | 2016-03-29 | 2017-10-10 | 颜世龙 | Modified large-area flat-plate solar thermal collector |
| CN108088095A (en) * | 2017-12-05 | 2018-05-29 | 兰州理工大学 | A kind of plate type solar air collector |
| CN112594939A (en) * | 2020-12-14 | 2021-04-02 | 郑州轻工业大学 | Enhanced heat transfer type low-resistance solar flat plate collector |
| CN214371004U (en) * | 2021-03-17 | 2021-10-08 | 山东集诚新能源科技有限公司 | Flat plate type heat exchange tube for solar heat collector |
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2022
- 2022-04-19 CN CN202210411827.6A patent/CN114739019B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003314901A (en) * | 2002-04-19 | 2003-11-06 | Matsushita Electric Ind Co Ltd | Solar energy collector |
| JP2006343027A (en) * | 2005-06-08 | 2006-12-21 | Rinnai Corp | Heat exchange arrangement |
| CN107238215A (en) * | 2016-03-29 | 2017-10-10 | 颜世龙 | Modified large-area flat-plate solar thermal collector |
| CN108088095A (en) * | 2017-12-05 | 2018-05-29 | 兰州理工大学 | A kind of plate type solar air collector |
| CN112594939A (en) * | 2020-12-14 | 2021-04-02 | 郑州轻工业大学 | Enhanced heat transfer type low-resistance solar flat plate collector |
| CN214371004U (en) * | 2021-03-17 | 2021-10-08 | 山东集诚新能源科技有限公司 | Flat plate type heat exchange tube for solar heat collector |
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| Title |
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| 利用旋流效应强化平板型太阳能空气集热器性能;胡建军;郭萌;张广秋;张士英;郭金勇;陈立娟;;农业工程学报(第06期);全文 * |
| 扭矩盒集热器支架轻量化设计;章学俊;苏小平;王宏楠;;机械制造与自动化(第06期);全文 * |
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| CN114739019A (en) | 2022-07-12 |
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