CN116717916A - Flat-plate type solar air collector based on L-shaped double-layer micro-heat pipe array-double-layer glass cover plate - Google Patents
Flat-plate type solar air collector based on L-shaped double-layer micro-heat pipe array-double-layer glass cover plate Download PDFInfo
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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
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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
- F24S10/00—Solar heat collectors using working fluids
- F24S10/90—Solar heat collectors using working fluids using internal thermosiphonic circulation
- F24S10/95—Solar heat collectors using working fluids using internal thermosiphonic circulation having evaporator sections and condenser sections, e.g. heat pipes
-
- 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
- F24S70/225—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption for spectrally selective absorption
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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
- F24S80/50—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings
- F24S80/56—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings characterised by means for preventing heat loss
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D2015/0225—Microheat pipes
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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)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photovoltaic Devices (AREA)
Abstract
A flat-plate type solar air heat collector based on an L-shaped double-layer micro heat pipe array-double-layer glass cover plate relates to the field of solar photo-thermal utilization and comprises a double-layer glass cover plate, a selective absorption coating, an L-shaped micro heat pipe array, a straight fin and a heat exchange air duct component. In the heat collection process of the device, sunlight penetrates through the double-layer glass cover plate, an air layer at the lower side of the cover plate is heated, the sunlight penetrating through the glass transfers heat to the surface of the selective absorption coating in a thermal radiation and thermal convection mode, and then the evaporation section of the micro heat pipe array is heated, and the micro heat pipe array heats low-temperature air in the air duct through the excellent performance of the micro heat pipe array. The heat collector has the advantages that the effective heat collection area of the heat collector is increased by utilizing the excellent heat conducting property of the L-shaped micro heat pipe array, the effective separation of the heat collection section and the heat extraction section is realized, the flow of the gas-liquid phase change working medium in the heat pipe is increased, the area of the condensation section is effectively increased, and the heat collection efficiency of the heat collector is improved.
Description
Technical Field
The invention mainly relates to the technical field of solar heat collection and enhanced heat exchange, and discloses a flat-plate type solar air heat collector device based on an L-shaped double-layer micro heat pipe array-double-layer glass cover plate.
Background
The solar energy resources in China are rich, the distribution is wide, the method is clean and environment-friendly, and the method is economical and safe. Provides guarantee and convenience for solar energy utilization technology. The research is mainly aimed at the photo-thermal utilization technology of solar energy, the heat collector is used as a key component in the photo-thermal technology, absorbs solar radiation and then transfers heat energy generated by the heat collector to a heat transfer working medium, and the generated heat energy is used in the fields of heating or domestic water and the like. The heat transfer medium according to the heat collector can be classified into: a liquid collector and an air collector. Compared with a liquid heat collector, the air heat collector can directly heat hot air generated by outdoor air, has no anti-freezing problem in winter, has low system bearing pressure and low cost, can not greatly influence the running performance of the whole device, can be conveniently used for heating buildings in winter and occasions needing heating and drying in industry and agriculture, but has a simple structure, and has low heat efficiency; the air heat collector with higher heat efficiency has the advantages of complex structure, high flow resistance and high operation cost. Therefore, the problems of the air heat collector are solved from the source, the heat collecting efficiency is improved, the heat loss is reduced, the flow resistance and the cost are reduced, and the key technical problem to be solved is urgently needed at present.
For rural areas in northern China, heated kang and stove are the first choice equipment for families in northern China due to the problems of remote positions, scattered living, underdeveloped economy, uneven energy distribution and the like, which means that some low-cost fuels such as coal, straw and the like become necessary reserves for heating, thus not only being unfavorable for the development of ecological environment, but also directly leading to less clean energy utilization and difficult popularization. Therefore, solar heat collection is a practical method for solving the difficult problem of rural heating.
Disclosure of Invention
The invention aims to design a flat-plate type solar air collector device based on an L-shaped double-layer micro heat pipe array-double-layer glass cover plate. The L-shaped double-layer micro-heat tube array component is used as a core heat transfer element, so that on one hand, heat loss can be effectively reduced by double-layer glass, on the other hand, the heat exchange area of a condensing section can be increased by using the L-shaped double-layer micro-heat tube array technology, heat absorbed by an evaporating section is effectively taken away in time, and the overall heat collection efficiency of the heat collection device is further improved. Compared with the traditional round heat pipe, the micro heat pipe array has flat appearance and larger specific surface area, can be more conveniently attached to the selective heat absorption film, and reduces contact thermal resistance. Meanwhile, the micro heat pipe array technology has the advantages of better heat conductivity, better temperature uniformity, high equivalent heat conductivity coefficient, simple structure, suitability for long-distance heat transfer and the like compared with silver, copper, aluminum and the like, and is very suitable for being introduced into the field of solar heat utilization. The application of the micro heat pipe array technology not only optimizes the heat collecting plate and increases the effective heat collecting area, realizes the effective separation of the heat collecting section and the heat taking section, reduces the cost of the whole device of the solar air heat collector, but also optimizes the air heat exchanging flow passage and greatly reduces the flowing resistance.
The technical scheme of the invention is as follows:
a flat-plate type solar air collector device based on an L-shaped double-layer micro-heat pipe array-double-layer glass cover plate is characterized in that the flat-plate type solar air collector device based on the L-shaped double-layer micro-heat pipe array-double-layer glass cover plate mainly comprises the following components: an air duct (1), a double-layer glass cover plate (2), a selective absorption coating (3), an L-shaped double-layer micro heat pipe array assembly (4), heat preservation cotton (5) in a box body, a heat collection box body (6) and rectangular straight fins (7);
the L-shaped double-layer micro heat pipe array assembly (4) is integrally formed by laminating an upper layer of L-shaped plate-shaped structure and a lower layer of L-shaped plate-shaped structure in parallel, and is divided into three communicated sections along the length direction: the heat collecting section, the heat insulating section and the heat taking section; the heat collecting section is a vertical cavity flat plate structure, the heat insulating section connects the heat collecting section and the heat collecting section, and the heat insulating section and the heat collecting section are of the same bottom cavity flat plate structure; a plurality of L-shaped plate-shaped structures are arranged in parallel along the width direction;
the upper layer plate micro heat pipe array and the lower layer plate micro heat pipe array of the L-shaped double-layer micro heat pipe array assembly (4) are connected in a bonding mode between the surfaces in a mode of being flush at the bottom, working mediums in the micro heat pipe arrays on the upper layer and the lower layer are not communicated with each other, when the micro heat pipes on the upper layer and the lower layer are bonded by adopting heat conducting silica gel (8), the heat conducting silica gel (8) is fixed and compacted by using bolts and nuts by means of flanges and gaskets during bonding, and the redundant heat conducting silica gel (8) is extruded while the two layers of L-shaped micro heat pipes are tightly bonded;
a selective absorption coating (3) is stuck on the upper surface of the heat collecting section of the L-shaped double-layer micro heat pipe array component (4); a double-layer glass cover plate (2) is arranged on the selective absorption coating (3); the lower surface of the bottom of the L-shaped double-layer micro heat pipe array component (4) is heat preservation cotton (5); the heat collection box body (6) is arranged below the heat preservation cotton (5), the heat collection section of the L-shaped double-layer micro heat pipe array component (4) is completely arranged in the inner cavity of the heat collection box body (6), and the heat collection box body (6) and the double-layer glass cover plate (2) are combined and matched to form a closed structure;
the heat-taking section of the L-shaped double-layer micro heat pipe array component (4) is arranged in the air duct (1); the front and the back of each layer of heat-taking section of the double-layer L-shaped double-layer micro heat pipe array component (4) are correspondingly adhered or welded with rectangular straight fins (7), low-temperature air is sent into the air duct (1) through the blower to exchange heat so as to obtain high-temperature air, and the rectangular straight fins (7) increase heat exchange area and heat exchange performance.
And the double-layer glass cover plate (2) is used for filling the air into the glass interlayer.
The rectangular straight fin (7) is a member with large heat exchange area, large expansion coefficient, compact structure and low cost.
The heat collection box body (6) and the air duct (1) are both heat-insulating and heat-insulating by adopting heat-insulating materials.
The heat collection box body (6) is provided with a wire slot hole site and a sealing buckle corresponding to the glass cover plate in advance during processing, and the periphery of the heat collection box body and the joint of the heat collection box body and the glass cover plate are sealed by glass cement, AB glue and a sealing rubber ring during installation;
the selective absorption coating (3) adopts a selective heat absorption blue film with high absorptivity and low emissivity;
the L-shaped flat plate is an aluminum alloy metal plate with the appearance of 3mm and the thickness of a heat pipe array assembly (4), a plurality of non-communicated micro heat pipe channels with micro fins are arranged in the L-shaped flat plate, the equivalent diameter of each micro heat pipe channel is 5mm, a micro channel structure is formed between adjacent micro fins, and simultaneously, vacuumizing and filling working media are carried out in each independent micro heat pipe channel, wherein the working media filled in the micro heat pipe channels are mostly selected from refrigerants such as acetone, methanol, ethanol, R134a and the like;
the flat-plate type solar air collector device based on the double-layer glass of the L-shaped double-layer micro heat pipe array absorbs solar energy in sunny and cloudless days, converts the absorbed solar radiation into heat energy, is used in the fields of building heating, domestic water and the like, and is preferably placed in the south according to the local latitude of plus or minus 10 degrees;
the double-layer glass cover plate (2) is made of super-white light-transmitting toughened glass with explosion prevention, high transmittance, small heat loss and thickness of 3mm, and an air layer with thickness of 12mm is filled between the double-layer glass for heat preservation.
The invention has the technical effects that:
the invention selects the high-efficiency heat conduction performance of the micro heat pipe array component (4), the high-efficiency heat absorption characteristic of the selective absorption coating (3) and the reinforced heat exchange element of the rectangular straight fin (7) to realize the effective heat exchange of the low-temperature air at the inlet of the air duct, thereby realizing the effective heat utilization of solar energy.
The flat-plate solar air heat collector adopts the micro heat pipe array as the micro heat pipe array of the core heat exchange element. And determining the length of a condensing section matched with the heat collecting area of an evaporating section according to a heat balance principle, and simultaneously compared with a conventional flat micro heat pipe array, bending the flat micro heat pipe array during processing to manufacture an L-shaped flat micro heat pipe array (4), placing two L-shaped micro heat pipes with different sizes up and down, and adhering by using heat conducting silica gel. The heat pipe array is integrated into a whole device, so that the flow of the phase change of the gas-liquid working medium in the heat pipe array is effectively increased, and the effective heat exchange area of the condensing section is greatly increased. Meanwhile, the double-layer glass cover plate (air is filled in the interlayer) is selected for the heat collector device, so that the overall heat insulation performance of the heat collector is improved, and the heat loss of the glass cover plate to the external environment is reduced.
Drawings
FIG. 1 is an exploded schematic view of the structure of the present invention;
FIG. 2 is an exploded view of a method of making an L-shaped double-layer micro-heat pipe array assembly used in the present invention;
FIG. 3 is a schematic diagram of a three-dimensional structure of an L-shaped micro heat pipe array unit with rectangular straight fins and a device;
FIG. 4 is a schematic illustration of an internal cross section at a cross section of an L-shaped double-layer micro-heat pipe array assembly;
the heat-insulating box comprises an air duct 1, a double-layer glass cover plate 2, a selective absorption coating 3, an L-shaped double-layer micro heat pipe array assembly 4, heat-insulating cotton 5 in the box body, a heat-collecting box body 6, rectangular straight fins 7, heat-conducting silica gel 8, gaskets 9, bolts and nuts 10, micro channels 11 and micro fins 12.
Detailed Description
The invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the following
Examples
Example 1
Fig. 1 is a schematic structural exploded view of a flat-plate solar air collector based on an L-shaped double-layer micro-heat pipe array-double-layer glass cover plate in the invention, which mainly comprises an air duct 1, a double-layer glass cover plate 2, a selective absorption coating 3, an L-shaped double-layer micro-heat pipe array assembly 4, thermal insulation cotton 5 in a box body, a heat collection box body 6 and rectangular straight fins 7, wherein in a clear and cloudless day, the collector device is exposed to sunlight, the sunlight passes through the double-layer glass cover plate 2, is absorbed by the selective absorption coating 3 and converted into heat energy, and then exchanges heat with an evaporation section of the L-shaped double-layer micro-heat pipe array assembly 4, and the evaporation section of the L-shaped double-layer micro-heat pipe array assembly 4 emits heat at a condensation section position by virtue of a working medium in a heat pipe.
FIG. 2 is an exploded view of a method of fabricating an L-shaped dual-layer micro-heat pipe array assembly according to the present invention. In the embodiment, heat conduction silica gel 8 is filled between two layers of L-shaped flat micro-heat pipe arrays, a gasket 9 and a bolt and a nut 10 are used for tightening and fixing, after the silica gel is solidified, the gasket 9 and the bolt and the nut 10 are taken down to complete the manufacture of the double-layer L-shaped micro-heat pipe array units, and the heat collector in the embodiment totally comprises 11 groups of L-shaped double-layer micro-heat pipe array units, and the manufacturing methods are consistent.
Fig. 3 is a schematic diagram of a three-dimensional structure of an L-shaped micro heat pipe array unit with rectangular straight fins and a device, wherein the selective absorption coating 3 is adhered to the surface of the L-shaped double-layer micro heat pipe array assembly 4 by using heat conducting silica gel 8, and the rectangular straight fins 7 are adhered to the surface of the condensation section of the L-shaped double-layer micro heat pipe array assembly 4 in an adhesive or welding mode. The device schematic diagram shows that in the daytime, the heat collector can exchange heat with air flowing in the air duct 1 by releasing the energy converted from the collected sunlight into the air duct 1 and send hot air to a user end with requirements.
Fig. 4 is a schematic diagram of an internal section of an L-shaped double-layer micro-heat pipe array component in cross section, wherein the micro-heat pipe array is formed by welding, stamping or extrusion of metal materials, a condensation section is bent to be in the shape of the L-shaped micro-heat pipe array on the basis of a conventional micro-heat pipe array, each micro-heat pipe internally comprises two or more independent and parallel micro-channels 11, the equivalent diameter of each micro-channel 11 is about 5mm, the inner wall of each micro-channel 11 is provided with micro fins 12, and phase change working media, which are generally refrigerants such as acetone, methanol, ethanol, R134a and the like, are filled in a vacuum pumping mode. In addition, each micro channel 11 is connected and communicated through the pipe wall, so that the reliability of the micro heat pipe array is fully improved.
Working media in the double-layer L-shaped micro heat pipe array are not circulated.
The air duct 1, the heat collection box 6 and the outer surfaces of the heat insulation sections of the device are all provided with heat insulation materials, and the detailed thickness is comprehensively determined according to the price and the heat performance of the heat collector.
When the heat collector device is used for collecting heat, the heat collector device is preferably placed in the south according to the local latitude of plus or minus 10 degrees.
In the heat collection process of the device, sunlight penetrates through the double-layer glass cover plate, an air layer at the lower side of the cover plate is heated, the sunlight penetrating through the glass transfers heat to the surface of the selective absorption coating in a thermal radiation and thermal convection mode, and then the evaporation section of the micro heat pipe array is heated, and the micro heat pipe array heats low-temperature air in the air duct through the excellent performance of the micro heat pipe array. The solar flat plate collector device increases the effective heat collection area of the collector by utilizing the excellent heat conduction performance of the L-shaped micro heat pipe array, realizes the effective separation of the heat collection section and the heat extraction section, increases the flow of the gas-liquid phase change working medium in the heat pipe, effectively increases the area of the condensation section, improves the heat collection efficiency of the heat collector device, and is a practical clean heating mode when being applied to winter heating in northern rural areas, and the development and the use of renewable energy sources are promoted.
Claims (9)
1. A flat-plate solar air collector based on an L-shaped double-layer micro heat pipe array-double-layer glass cover plate is characterized in that the main components comprise: an air duct (1), a double-layer glass cover plate (2), a selective absorption coating (3), an L-shaped double-layer micro heat pipe array assembly (4), heat preservation cotton (5) in a box body, a heat collection box body (6) and rectangular straight fins (7);
the L-shaped double-layer micro heat pipe array assembly (4) is integrally formed by laminating an upper layer of L-shaped plate-shaped structure and a lower layer of L-shaped plate-shaped structure in parallel, and is divided into three communicated sections along the length direction: the heat collecting section, the heat insulating section and the heat taking section; the heat collecting section is a vertical cavity flat plate structure, the heat insulating section connects the heat collecting section and the heat collecting section, and the heat insulating section and the heat collecting section are of the same bottom cavity flat plate structure; a plurality of L-shaped plate-shaped structures are arranged in parallel along the width direction;
the upper layer plate micro heat pipe array and the lower layer plate micro heat pipe array of the L-shaped double-layer micro heat pipe array assembly (4) are connected in a bonding mode between the surfaces in a mode of being flush at the bottom, working mediums in the micro heat pipe arrays on the upper layer and the lower layer are not communicated with each other, when the micro heat pipes on the upper layer and the lower layer are bonded by adopting heat conducting silica gel (8), the heat conducting silica gel (8) is fixed and compacted by using bolts and nuts by means of flanges and gaskets during bonding, and the redundant heat conducting silica gel (8) is extruded while the two layers of L-shaped micro heat pipes are tightly bonded;
a selective absorption coating (3) is stuck on the upper surface of the heat collecting section of the L-shaped double-layer micro heat pipe array component (4); a double-layer glass cover plate (2) is arranged on the selective absorption coating (3); the lower surface of the bottom of the L-shaped double-layer micro heat pipe array component (4) is heat preservation cotton (5); the heat collection box body (6) is arranged below the heat preservation cotton (5), the heat collection section of the L-shaped double-layer micro heat pipe array component (4) is completely arranged in the inner cavity of the heat collection box body (6), and the heat collection box body (6) and the double-layer glass cover plate (2) are combined and matched to form a closed structure;
the heat-taking section of the L-shaped double-layer micro heat pipe array component (4) is arranged in the air duct (1); the front and the back of each layer of heat-taking section of the double-layer L-shaped double-layer micro heat pipe array component (4) are correspondingly adhered or welded with rectangular straight fins (7), low-temperature air is sent into the air duct (1) through the blower to exchange heat so as to obtain high-temperature air, and the rectangular straight fins (7) increase heat exchange area and heat exchange performance.
2. A flat-plate solar air collector based on an L-shaped double-layer micro-heat pipe array-double-layer glass cover plate according to claim 1, characterized in that the double-layer glass cover plate (2), glass interlayer is filled with air.
3. The flat-plate type solar air collector based on the L-shaped double-layer micro heat pipe array and the double-layer glass cover plate according to claim 1, wherein the rectangular flat fins (7) are members with large heat exchange area, large expansion coefficient, compact structure and low cost.
4. The flat-plate type solar air collector based on the L-shaped double-layer micro heat pipe array and the double-layer glass cover plate is characterized in that the heat collection box body (6) and the air duct (1) are subjected to heat preservation and heat insulation treatment by adopting heat preservation materials.
5. The flat-plate solar air collector based on the L-shaped double-layer micro heat pipe array and the double-layer glass cover plate is characterized in that wire slot hole sites and sealing buckles corresponding to the glass cover plate are reserved in advance when the heat collection box body (6) is processed, and glass cement, AB cement and sealing rubber rings are used for sealing the periphery of the heat collection box body and the joint of the heat collection box body and the glass cover plate when the heat collection box body is installed.
6. A flat-plate solar air collector based on an L-shaped double-layer micro-heat pipe array-double-layer glass cover plate according to claim 1, wherein the selective absorption coating (3) adopts a selective heat absorption blue film with high absorptivity and low emissivity.
7. The flat-plate solar air collector based on the L-shaped double-layer micro heat pipe array-double-layer glass cover plate is characterized in that the L-shaped flat plate is an aluminum alloy metal plate with the appearance of 3mm of a heat pipe array assembly (4), a plurality of non-communicated micro heat pipe channels with micro fins are arranged inside the flat plate, the equivalent diameter of each micro heat pipe channel is 5mm, a micro channel structure is formed between every two adjacent micro fins, and meanwhile vacuumizing and filling working media are carried out in each independent micro heat pipe channel, and the working media filled in the micro heat pipe channels are selected from refrigerants such as acetone, methanol, ethanol, R134a and the like.
8. The flat-plate type solar air collector based on the L-shaped double-layer micro heat pipe array and the double-layer glass cover plate, which is disclosed in claim 1, is characterized in that solar energy is absorbed in sunny and cloudless days, the absorbed solar radiation is converted into heat energy, and the heat energy is used in the fields of building heating, domestic water and the like and is placed in the south according to the local latitude of plus or minus 10 degrees.
9. The flat-plate solar air collector based on the L-shaped double-layer micro heat pipe array-double-layer glass cover plate is characterized in that the double-layer glass cover plate (2) is made of ultra-white light-transmitting toughened glass with explosion prevention, high transmittance, small heat loss and thickness of 3mm, and an air layer with thickness of 12mm is filled between the double-layer glass for heat preservation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310318842.0A CN116717916A (en) | 2023-03-28 | 2023-03-28 | Flat-plate type solar air collector based on L-shaped double-layer micro-heat pipe array-double-layer glass cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310318842.0A CN116717916A (en) | 2023-03-28 | 2023-03-28 | Flat-plate type solar air collector based on L-shaped double-layer micro-heat pipe array-double-layer glass cover plate |
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| Publication Number | Publication Date |
|---|---|
| CN116717916A true CN116717916A (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310318842.0A Pending CN116717916A (en) | 2023-03-28 | 2023-03-28 | Flat-plate type solar air collector based on L-shaped double-layer micro-heat pipe array-double-layer glass cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116717916A (en) |
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2023
- 2023-03-28 CN CN202310318842.0A patent/CN116717916A/en active Pending
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