CN201803479U - Microchannel parallel flow plate-type solar collecting device - Google Patents
Microchannel parallel flow plate-type solar collecting device Download PDFInfo
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- CN201803479U CN201803479U CN2010202265767U CN201020226576U CN201803479U CN 201803479 U CN201803479 U CN 201803479U CN 2010202265767 U CN2010202265767 U CN 2010202265767U CN 201020226576 U CN201020226576 U CN 201020226576U CN 201803479 U CN201803479 U CN 201803479U
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- parallel flow
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- channel parallel
- solar energy
- type solar
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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
Abstract
A microchannel parallel flow plate-type solar collecting device consists of microchannel parallel flow solar collecting elements, a translucent cover plate, a box body and a pipeline, and belongs to the field of plate-type solar collectors. The microchannel parallel flow plate-type solar collecting device adopts a brand-new microchannel parallel flow solar collecting element structure to replace the traditional pipe-plate plate type heating collecting elements, utilizes the microchannel parallel flow technology to improve heat exchange efficiency, can efficiently absorb the solar energy passing through the cover plate to a maximum degree, greatly reducing the temperature of the hot film surface and the temperature difference working media in the pipe, lessens the irreversible loss during the process of heat engineering, greatly improves the solar thermal efficiency, and can effectively improve the daily average efficiency in the winter by combining with a hollow cover plate structure. The microchannel parallel flow plate-type solar collecting device has high efficient water yield rate, excellent sanitary condition, compact structure, low cost, excellent weathering resistance, simple and pollution-free production technology, is pressure resistant, anti-freezing, convenient for integrated mounting of a building and convenient to maintain, and realizes an innovation in the solar collecting technology.
Description
Technical field
The utility model relates to a kind of micro-channel parallel flow plate type solar energy heat collector, belongs to solar thermal utilization and heat supplying air conditioning technical field.
Background technology
Solar energy has huge day by day using value as one of main regenerative resource because of its unlimitedness, spatter property etc.Wherein solar energy utilization technique has been widely used in making the domestic hot-water, heating and even field of air conditioning also have been generalized at present, its thermal-arrest form mainly contains flat-plate collector, vacuum tube collector, closing-sunning type water heater etc., and wherein vacuum tube collector also can compoundly be forms such as heat-pipe vacuum-tube, U type pipe.The market share of present various solar water heaters is: wherein the domestic market vacuum tube water heater accounts for the market share more than 2/3, and flat casing water-heater only accounts for about 20%; The international market then latter accounts for 85%, and the former only accounts for less than 10%.Wherein existing domestic to have breakthrough technology in vacuum tube patent relevant, also relevant with the different characteristics of various water heater technology and technology manufacturing etc.
With regard to thermal property, international standard regulation solar water heater thermal property is: per day efficient is not less than 45%, and average heat loss factor is not less than 5W/m
2, in fact various solar water heaters all can be easy to reach above-mentioned standard.But vacuum tube collector than flat winter efficient higher, and can take various antifreezing measures more easily, but the invalid volume of vacuum tube internal water volume, promptly in fact this part water can't take out utilization, and it is about 25～30% that the gap that exists between the endothermic tube makes its actual solar energy effectively utilize area to reduce, and easily fouling in the pipe, system's leakage point is many and coverage is big; And the whole solar energy irradiated area of flat plate collector can be utilized, and water capacity is much smaller in the pipe, thereby per day efficient is higher summer, and be easier to realize architecture-integral, but because aggravating, the heat convection effect significantly reduces per day efficient its winter, and antifreeze difficulty, thereby be considered to the winter thermal property traditionally not as vacuum tube collector.
All require further to improve the thermal property in winter from functional need and technical development aspect, realizing effective solar energy hot water in winter (but not only being to rely on the auxiliary electrical heating), and satisfy the needs of solar heating.And present solar thermal collector is all owing to the low more large-area heat collector of design that needs of the thermal efficiency in winter, this will directly cause the cost of solar thermal collection system to increase, to such an extent as to it is uneconomical, impracticable that in fact solar heating exists, heat water and also often expend a large amount of electric energy.
For this reason, be necessary that the technological means of seeking novelty effectively improves winter solar energy collecting efficiency.The micro-channel parallel flow heat transfer technology has obtained significant development and has progressively moved towards practicability at present, utilize the concrete thermal technology and the process characteristic of this technology and micro-channel flat structure thereof, make the brand new solar energy heat collecting element, might realize high-efficiency solar heat utilization in winter and low-cost, low running cost, will be a kind of brand new solar energy thermal-arrest form.
Summary of the invention
The purpose of this utility model and task are, shortcoming at present vacuum tube or flat type solar heat collector, adopt brand-new micro-channel parallel flow solar collection element structure to replace traditional flat heat collecting elements such as tube-sheet type, develop a kind of novel micro-channel parallel flow plate type solar energy heat collector, can significantly improve solar heat efficient, particularly can effectively improve per day efficient in winter in conjunction with the vacuum cover plate structure, can efficient heating and heat the needs of water to satisfy winter solar.
The micro-channel parallel flow plate type solar energy heat collector is made up of micro-channel parallel flow solar collection element, euphotic cover plate, insulation casing and pipeline, wherein casing (1) comprises insulation base (2) and side plate (7), its top is euphotic cover plate (5), it is characterized in that being incubated on the heat-insulation layer of base (2) and be provided with micro-channel parallel flow solar collection element (3), the surface recombination of this micro-channel parallel flow solar collection element (3) has one deck selective solar absorbing film (9).
Micro-channel parallel flow solar collection element (3) comprises the aluminum micro-channel flat structure of one or several extrusion modlings, and the two ends of all micro-channel flat adopt welding manner to link to each other with a minute current collector (4) respectively.Heat collecting element (3) adopts the special-purpose flat tube configuration of solar energy heat absorbing, and flat tube inside is divided into some fine ducts (8), and microcellular structure comprises rectangle, circle or oval, and flat tube outer wall top and/or sidepiece are compounded with one deck selective solar absorbing film (9).Divide current collector (4) to adopt aluminum pipe or D type pipe, outside wall surface is compounded with one deck selective solar absorbing film (9), inside is provided with or is not provided with the blind plate that working medium in the flat tube is divided into the multipaths structure, the current divider of its middle and lower part links to each other with working medium import (B), and the current collector on top links to each other with sender property outlet (A).
Euphotic cover plate (5) can adopt and comprise a layer-selective high permeability glass structure, also can adopt double-layer glass structure, wherein can adopt air space or inert gas interbed in the middle of the bilayer, also can adopt the vacuum interbed.
The heat collector intraductal working medium can adopt water to form direct or indirect connection to add hot water, also can adopt antifreeze working medium such as ethylene glycol antifreeze, or adopt water, alcohol, methyl alcohol or do not have heat-pipe medium such as chlorine freon and form hot-pipe system, and adopt with hot-water heating system and to be connected indirectly.
During actual installation, can flat tube is vertical, laterally or be the setting of the certain level gradient, need there be water pump that circulation power is provided during horizontally set usually.
The utility model utilizes the micro-channel parallel flow technology to improve heat exchange efficiency, can realize the solar energy that sees through cover plate is realized maximum efficient absorption, significantly reduce the absorption film surface temperature and with the temperature difference of intraductal working medium, reduce the thermal process irreversible loss, significantly improve solar heat efficient.If particularly can effectively improve per day efficient in winter further combined with the vacuum cover plate structure.Summer is per day most effective above original vacuum tube or more than 15～25% of flat plate collector, and winter is high more than 20% with the comparable original flat plate collector of the per day efficient of the type of dual-layer vacuum glass cover plate, and is higher more than 5～15% than vacuum tube collector.
The effective producing water ratio height of this utility model, but pressure-bearing, anti-freeze, sanitary condition are good, compact conformation, low, the good weatherability of cost, and production technology is simply pollution-free, is convenient to architecture-integral and installs, easy to maintenance, realized the novelty development at the solar energy heating technical elements.The utility model provides more powerful and economical and practical technical foundation in particular for the application of solar heating.
Description of drawings
Fig. 1 is the utility model facade structures schematic diagram, and Fig. 2 is the C-C cross-sectional view among Fig. 1, and Fig. 3 is the special-purpose micro-channel flat structural representation of solar energy heating.
Each unit number and title are as follows among Fig. 1,2,3: insulation casing 1, insulation base 2, micro-channel parallel flow solar collection element 3, branch current collector 4, euphotic cover plate 5, selectivity high permeability glass 5-1, air space or inert gas interbed or vacuum interbed 5-2, selectivity high permeability glass 5-3, thermal-arrest cavity 6, side plate 7, fine duct 8, selective solar absorbing film 9, sender property outlet A, working medium import B.
The specific embodiment
Fig. 1 is the utility model facade structures schematic diagram, and Fig. 2 is the C-C cross-sectional view among Fig. 1, and Fig. 3 is the special-purpose micro-channel flat structural representation of solar energy heating.
A kind of specific embodiment of micro-channel parallel flow plate type solar energy heat collector of the present utility model is, device is made up of micro-channel parallel flow solar collection element, euphotic cover plate, insulation casing and pipeline, wherein casing (1) comprises insulation base (2) and side plate (7), its top is euphotic cover plate (5), it is characterized in that being incubated on the heat-insulation layer of base (2) and be provided with micro-channel parallel flow solar collection element (3), the surface recombination of this micro-channel parallel flow solar collection element (3) has one deck selective solar absorbing film (9).
Micro-channel parallel flow solar collection element (3) comprises the aluminum micro-channel flat structure of one group of extrusion modling, the two ends of all micro-channel flat adopt welding manner to link to each other with a minute current collector (4) respectively, the single process structure forms relation in parallel between each micro-channel flat.Heat collecting element (3) adopts the special-purpose flat tube configuration of solar energy heat absorbing, and flat tube inside is divided into some fine ducts (8), and microcellular structure is a rectangle, and flat tube outer wall top and sidepiece are compounded with one deck selective solar absorbing film (9).Divide current collector (4) to adopt aluminum D type pipe and punching so that weld with corresponding flat tube, outside wall surface is compounded with one deck selective solar absorbing film (9), inner no blind plate, the current divider of its middle and lower part links to each other with working medium import (B), the current collector on top links to each other with sender property outlet (A), working medium adopts ethylene glycol antifreeze, and is sent to the heat exchanger of hot water storage tank by A, B mouth.Euphotic cover plate (5) adopts the dual-layer vacuum glass structure.
Need to prove; the specific embodiment as described herein only is a kind of in the numerous embodiments that can take of the utility model; the utility model is owing to have very strong technical foundation; can be according to the concrete needs of solar thermal collection system and carry out the remodeling and the functional utilization of relevant structural manufacturing process etc. easily, this all will fall into protection domain of the present utility model.
Claims (9)
1. micro-channel parallel flow plate type solar energy heat collector, form by micro-channel parallel flow solar collection element, euphotic cover plate, insulation casing and pipeline, wherein casing (1) comprises insulation base (2) and side plate (7), its top is euphotic cover plate (5), it is characterized in that being incubated on the heat-insulation layer of base (2) and be provided with micro-channel parallel flow solar collection element (3), the surface recombination of this micro-channel parallel flow solar collection element (3) has one deck selective solar absorbing film (9).
2. micro-channel parallel flow plate type solar energy heat collector as claimed in claim 1, it is characterized in that described micro-channel parallel flow solar collection element (3) comprises the aluminum micro-channel flat structure of one or several extrusion modlings, the two ends of all micro-channel flat link to each other with a minute current collector (4) respectively.
3. micro-channel parallel flow plate type solar energy heat collector as claimed in claim 1 is characterized in that described micro-channel parallel flow solar collection element (3) is welded to connect with dividing current collector (4) employing.
4. micro-channel parallel flow plate type solar energy heat collector as claimed in claim 1, it is characterized in that described micro-channel parallel flow solar collection element (3) adopts the special-purpose flat tube configuration of solar energy heat absorbing, flat tube inside is divided into some fine ducts (8), microcellular structure comprises rectangle, circle or oval, and flat tube outer wall top and/or sidepiece are compounded with one deck selective solar absorbing film (9).
5. micro-channel parallel flow plate type solar energy heat collector as claimed in claim 2, it is characterized in that described minute current collector (4) adopt aluminum pipe or D type pipe, outside wall surface is compounded with one deck selective solar absorbing film (9), inside is provided with or is not provided with the blind plate that working medium in the flat tube is divided into the multipaths structure, the current divider of its middle and lower part links to each other with working medium import (B), and the current collector on top links to each other with sender property outlet (A).
6. micro-channel parallel flow plate type solar energy heat collector as claimed in claim 1 is characterized in that described euphotic cover plate (5) comprises a layer-selective high permeability glass (5-1).
7. micro-channel parallel flow plate type solar energy heat collector as claimed in claim 1 is characterized in that described euphotic cover plate (5) comprises double-deck selectivity high permeability glass (5-1,5-3), is air space or inert gas interbed (5-2) in the middle of the bilayer.
8. micro-channel parallel flow plate type solar energy heat collector as claimed in claim 1 is characterized in that described euphotic cover plate (5) comprises double-deck selectivity high permeability glass (5-1,5-3), is vacuum interbed (5-2) in the middle of the bilayer.
9. micro-channel parallel flow plate type solar energy heat collector as claimed in claim 1 is characterized in that the pipe interior working medium of described micro-channel parallel flow solar collection element (3) adopts water, ethylene glycol antifreeze, alcohol, methyl alcohol or do not have chlorine freon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202265767U CN201803479U (en) | 2010-06-16 | 2010-06-16 | Microchannel parallel flow plate-type solar collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202265767U CN201803479U (en) | 2010-06-16 | 2010-06-16 | Microchannel parallel flow plate-type solar collecting device |
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| CN201803479U true CN201803479U (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202265767U Expired - Fee Related CN201803479U (en) | 2010-06-16 | 2010-06-16 | Microchannel parallel flow plate-type solar collecting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788433A (en) * | 2012-07-16 | 2012-11-21 | 江苏省产品质量监督检验研究院 | Solar heat collector and water heater |
| CN107276494A (en) * | 2017-06-21 | 2017-10-20 | 广东雷子克热电工程技术有限公司 | A kind of cooling photo-thermal combined generating device certainly |
| CN110542220A (en) * | 2019-07-25 | 2019-12-06 | 太原理工大学 | Micro-channel solar heat collector adopting integral large-loop connection mode |
-
2010
- 2010-06-16 CN CN2010202265767U patent/CN201803479U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788433A (en) * | 2012-07-16 | 2012-11-21 | 江苏省产品质量监督检验研究院 | Solar heat collector and water heater |
| CN107276494A (en) * | 2017-06-21 | 2017-10-20 | 广东雷子克热电工程技术有限公司 | A kind of cooling photo-thermal combined generating device certainly |
| CN110542220A (en) * | 2019-07-25 | 2019-12-06 | 太原理工大学 | Micro-channel solar heat collector adopting integral large-loop connection mode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20130616 |