CN201032298Y - Fin type solar heat collection core and solar thermal collector - Google Patents
Fin type solar heat collection core and solar thermal collector Download PDFInfo
- Publication number
- CN201032298Y CN201032298Y CNU200720141665XU CN200720141665U CN201032298Y CN 201032298 Y CN201032298 Y CN 201032298Y CN U200720141665X U CNU200720141665X U CN U200720141665XU CN 200720141665 U CN200720141665 U CN 200720141665U CN 201032298 Y CN201032298 Y CN 201032298Y
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- Prior art keywords
- thermal
- fin
- heat
- collecting
- tube
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- Expired - Lifetime
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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
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
- F24S10/75—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits 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
- F24S10/00—Solar heat collectors using working fluids
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
- F24S10/75—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations
- F24S2010/751—Special fins
- F24S2010/752—Special fins extending obliquely
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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)
- Dispersion Chemistry (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)
- Photovoltaic Devices (AREA)
Abstract
The utility model provides a solar-energy collecting core of fin type. The main heat absorption surface towards sunshine along the axial direction of the heat collecting pipe is provided at least a row of separate fin; the fin and the main heat absorption surface form an angle. By adopting the heat collecting core of the utility model, the surface of fin and heat collecting pipe form a plurality of similar cavities; cavity effect in physics is formed by sunshine in the cavities, so as to form an artificial blackbody with high blackness, enabling solar-energy to be full absorbed by heat collecting pipes and fins in the cavities to better finish heat exchange with conductive medium of the heat collecting pipes, so as to enhance heat collection efficiency of the heat collecting core. The heat collector of the collecting core is of high heat collecting efficiency.
Description
Technical field
The utility model relates to a kind of solar thermal collector, relates in particular to the fin type solar heat-collecting core of this solar thermal collector.
Background technology
The version of the thermal-arrest core of present domestic flat plate collector has tube-sheet type, Ji tubular type, flat box type, coil pipe type etc.There are shortcomings such as soldering reliability is poor, material usage big, voltage endurance capability is poor, flow resistance is big, recovery difficult is big in the thermal-arrest core that these traditional structures are made, brings many-sided problem to user and manufacturer.At above-mentioned problem, development along with technology and processing mode, people have designed a kind of thermal-arrest core of new structure, this thermal-arrest core has adopted fin and thermal-collecting tube one-body molded, with respect to former structure, there is not the thermal resistance that produces because of processing technology, improved heat transfer efficiency to greatest extent.A kind of " thermal-collecting tube of solar thermal collector " that provides as Chinese patent ZL200520025102.5, this thermal-collecting tube is included in the two sides one of thermal-collecting tube and stretches the heat absorption fin of establishing, it is one-body molded that concrete processing technology is that hot pressing is extruded, can improve the speed of heat absorption conduction, reduce cost of labor, but this patent is to stretch out two heat absorption fins in the both sides of thermal-collecting tube along the axial one of thermal-collecting tube, and the collecting efficiency of heat collector still has much room for improvement.
Summary of the invention
Main purpose of the present utility model is to solve the low problem of collecting efficiency in the prior art, the higher fin type solar heat-collecting core of a kind of collecting efficiency is provided and uses its fin type solar thermal collector.The thermal-arrest core has and the integrated fin of thermal-collecting tube, has improved solar energy utilization rate, has optimized the structure of solar heat-collecting core, thereby has also improved the collecting efficiency of heat collector.
An inferior purpose of the present utility model provides a kind of fin type solar heat-collecting core and uses the solar thermal collector of this thermal-arrest core, can regulate fin according to the irradiating angle of the different regions sun, make the heat absorption efficiency of solar heat-collecting core reach best.
Another purpose of the present utility model provides a kind of fin type solar heat-collecting core, reduces the outside emissivity of heat on the basis of improving heat absorption efficiency, further improves the collecting efficiency of solar thermal collector.
To achieve the above object of the invention, a kind of fin type solar heat-collecting core that the utility model provides, comprise thermal-collecting tube, thermal-collecting tube has the main heat-absorbent surface towards sunshine, it is provided with discrete fin, described fin is used to absorb solar energy, has angle between the main heat-absorbent surface of described fin and thermal-collecting tube.
In the optimized technical scheme, described fin becomes at least one row along the axially-aligned of thermal-collecting tube, and fin and thermal-collecting tube are formed in one.
In the optimized technical scheme, the adjustable included angle between fin and the thermal-collecting tube master heat-absorbent surface.
Further in the optimized technical scheme, fin is the wedge shape that the end is thin, root is thick.
Further in the optimized technical scheme, the spacing between same row's the two adjacent fins is 5mm-50mm, and the length of fin is less than 60mm.
Further in the optimized technical scheme, the fin on the thermal-collecting tube master heat-absorbent surface is two rows.
To achieve the above object of the invention, the utility model also provides a kind of solar thermal collector, comprises thermal-arrest core, connector, tube head and pipe close; Tube head hollow; Each tube head one end seals with pipe close, and the other end is connected with extraneous pipeline by connector; The thermal-arrest core is arranged between two tube heads, is used to make heat exchange medium to enter the tube head that is attached thereto from a connector, enters into another tube head through the thermal-arrest core then, and flows out by another connector; The thermal-arrest core comprises thermal-collecting tube, and being used for of thermal-collecting tube is provided with the discrete fin of at least one row towards the axial integral type of the main heat-absorbent surface upper edge thermal-collecting tube of sunshine, has angle between fin and the thermal-collecting tube master heat-absorbent surface.
In the optimized technical scheme, the adjustable included angle between the main heat-absorbent surface of fin and thermal-collecting tube.
Further in the optimized technical scheme, between two tube heads, be parallel with a plurality of thermal-arrest cores.
Further in the optimized technical scheme, tube head comprises the tube head unit of a plurality of serial connections.
The beneficial effects of the utility model are:
1, the utlity model has the utilization rate of higher solar energy, improved the Heat-collecting effect of solar heat-collecting core.Because the utility model is provided with the discrete fin of at least one row in facing on the main heat-absorbent surface of sunshine on the thermal-collecting tube, each fin is all in a certain angle with the main heat-absorbent surface of thermal-collecting tube, thereby make fin and thermal-collecting tube outer surface constitute a plurality of approximate cavitys, sunshine produces the cavity effect on the physics in cavity, constitute the artificial black matrix of high blackness, solar thermal energy can fully be absorbed by thermal-collecting tube and fin in cavity, better finish heat exchange with the heat-conducting medium in the thermal-collecting tube, thereby improved the collecting efficiency of thermal-arrest core.
2, the utility model heat transfer efficiency height.Because fin is integrated by backing-off cutting technology and thermal-collecting tube during fabrication, thermal resistance between fin and the thermal-collecting tube is less, has further improved heat transfer efficiency, and with respect to traditional methods such as welding, fully guarantee the uniformity between the individual fin, improved working (machining) efficiency simultaneously.
3, optimized the structure of thermal-arrest core.Fin of the present utility model is positioned at above the main heat-absorbent surface of thermal-collecting tube, can by make fin along angle outwards elongation increase the surface area of fin, make the surface area of fin not be subjected to the restriction of solar thermal collector area.Because the width of fin does not take the width of heat collector,, improved the heating efficiency of heat collector simultaneously so can be arranged side by side more thermal-arrest core for heat collector with width.
4, because the adjustable included angle of fin and thermal-collecting tube, according to different regions irradiation of sunlight direction, regulate the angle between fin and the thermal-collecting tube, make the incident angle of sunshine on fin less than 90 degree, still can be absorbed after making sunshine by the fin reflection, further improve collecting efficiency by the surface of thermal-arrest core or other fins.
5, because being the end, fin approaches the thick wedge shape of root, and thick more from the position that thermal-collecting tube is near more, meet heat transfer theory, in the time of economical with materials, heat-transfer effect is also better.And reduced thermal emissivity, thereby also reduced heat radiation.Fin adopts wedge shape to make that also fin is not yielding under external force and fractures.
6, owing to the parallel connection of a plurality of thermal-arrest core, the flow resistance of heat-conducting medium is little, and applied in any combination is flexible, and interchangeability is good.Because tube head is formed by a plurality of tube heads unit serial connection, applying flexible, interchangeability is good.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model thermal-arrest core;
Fig. 2 is the schematic diagram of fin absorption of the present utility model and reflected sunlight;
Fig. 3 is the structural representation of a kind of embodiment of the utility model solar thermal collector;
Fig. 4 is the connector structural representation of a kind of embodiment of the utility model;
Fig. 5 is the tube head structural representation of a kind of embodiment of the utility model;
Fig. 6 is the pipe close structural representation of a kind of embodiment of the utility model;
Fig. 7 is the tube head cellular construction schematic diagram of a kind of embodiment of the utility model.
The specific embodiment
A kind of thermal-arrest core that present embodiment provides as shown in Figure 1, thermal-arrest core 1 comprises thermal-collecting tube 11, thermal-collecting tube 11 is used to collect solar energy, and solar energy is converted to heat passes to its intraluminal heat-conducting medium.Thermal-collecting tube 11 can be that the cross section is the thermal-collecting tube of rectangle, basic rectangle (for example the surface has the rectangle of channel), arbitrary shape such as cylindrical, no matter but the cross section of thermal-collecting tube 11 is any shape, it all has a main heat-absorbent surface 111 that is used for towards sunshine, this face can be a rectangle plane, also can be an arcwall face.In order to increase the endotherm area of thermal-collecting tube 11, the main heat-absorbent surface 111 of thermal-collecting tube 11 is provided with discrete fin 12, reasonable scheme is to make fin 12 regularly arranged, for example form a line or multiple row, the root of fin 12 and main heat-absorbent surface 111 link together, and away from thermal-collecting tube 11 is the end of fin 12, the end is to aerial extension, that extends is long more, and the area of fin 12 is big more, and heat absorption efficiency is high more.Fin 12 is one-body molded with thermal-collecting tube 11, has reduced thermal-conduction resistance.Has certain angle 13 between each fin 12 and the main heat-absorbent surface 111, this angle 13 can be regulated according to the incident direction of sunshine, the incident direction that makes the surface of fin 12 and sunshine at an angle, guarantee that thermal-arrest core 1 can both be adjusted in best thermal-arrest state in each area, be applicable to each area.Because of forming a plurality of approximate cavitys between the surface of fin 12 and thermal-collecting tube 11, make the back, surface that sunshine incides fin 12 in cavity, be reflected repeatedly, absorb, thereby the utilization rate of sunshine is improved.As shown in Figure 2, after the incident light 14 of sunshine incides the surface of fin 12, a part is absorbed by fin 12, a part is reflected by fin 12, reverberation 15 shines the main heat absorption surface 111 of thermal-collecting tube 11, and reverberation 16 shines the back side of previous fin 12 then, is absorbed once more and reflects, through repeatedly absorbing repeatedly and reflecting, sunshine is substantially all absorbed by fin 12 and thermal-collecting tube 11.According to the sun direct projection situation of territory of use, the angle of setting between fin 12 and the thermal-arrest core 1 main heat-absorbent surface 111 13 is the 45-60 degree to fin 12 when making.According to different regions sunshine direct projection angle, accurately regulate the angle 13 of fin 12 and thermal-arrest core 1 main heat-absorbent surface 111 again during use, make to get final product substantially in angle of 45 degrees between angle of incidence of sunlight degree and the fin 12.
Can be good at absorbing sunshine in order to form cavity between the surface that makes fin 12 and thermal-collecting tube 11, the distance among the same row between adjacent two fins 12 is 5mm-50mm, and the length of fin 12 (i.e. distance from the root to the end) is 60mm.
The Heat-collecting effect of heat collector mainly relies on the Heat-collecting effect of thermal-arrest core, if heat radiation is bigger, just is difficult to obtain good Heat-collecting effect.In a kind of preferred embodiment of the present utility model, fin 12 is the wedge shape that the end is thin, root is thick, and this just makes that thermal emissivity is low, and the heat external radiation is little, and heat conductivity is good, and fin is not easy to be out of shape and to fracture under external force.
Usually the pipeline that has three heat supply exchange medias to flow in the thermal-collecting tube 11 if the section bar expressing technique allows a pipeline can only be set, can certainly be set to the pipeline of proper number.
Mate to some extent for the heat absorption rate, emissivity and heat conduction three aspects that make the thermal-arrest core, the fin 12 on the thermal-collecting tube 1 is designed to two rows.
Some solar heat-collecting cores 1 in the foregoing description can be constituted solar thermal collector by joint and pipeline connection.As shown in Figure 3, in a kind of embodiment of the present utility model, solar thermal collector comprises 3, two aluminum pipe closes 4 of 2, two aluminum tube heads of 1, two aluminum connector of three thermal-arrest cores.See also Fig. 4-7, tube head 3 is a hollow, and the one end is provided with a connector 2, is used to connect extraneous pipeline; The other end seals with a pipe close 4; The tube head stage casing have with thermal-arrest core 1 on the suitable hole of thermal-collecting tube 11.Thermal-collecting tube 11 hollows, be connected between the hole in two tube head 3 stage casings, make heat exchange medium to enter into the tube head 3 that is attached thereto from a connector 2, thermal-collecting tube 11 by thermal-arrest core 1 flows to another tube head 3 then, flow out by another pipe joint 2 then, in flow process, finish sufficient heat exchange with thermal-arrest core 1.Tube head 3 is formed by three tube head unit, 31 serial connections in the present embodiment, has three thermal-arrest cores 1 to be connected side by side between two tube heads 3 accordingly.
Solar thermal collector of the present utility model adopts aluminum alloy materials to make, and is in light weight, heat exchanger effectiveness is high.Thermal-collecting tube and fin are one-body molded, do not have in conjunction with thermal resistance.Fin can be made any inclination angle, adapting to the sun direct projection angle of different regions, thereby reaches higher heat absorption efficiency.Angle between fin and thermal-collecting tube master heat-absorbent surface can be provided with when the thermal-arrest core is produced, also can be after producing, according to the sunshine direct projection angular adjustment that makes land used, to reach best Heat-collecting effect.Aluminum alloy corrosion resistant can guarantee water cleaning.The thermal-collecting tube that aluminium alloy is made can bear higher pressure, and the voltage endurance capability of whole system is strong.Fin type thermal-arrest core is by special equipment, forms according to the different angles cutting at thermal-collecting tube section bar blank outer surface, is not subjected to width, length restriction, and compared with welding fin type thermal-arrest core, uniformity is significantly increased, and easily ensures the quality of products.Whole thermal-arrest core is made by an aluminium alloy extrusions machining that has channel, and material usage is few, and material does not lose substantially.Can adopt the in line parallel connection of a plurality of thermal-collecting tubes, liquid fluidity is good, and flow resistance is little, improves heat exchanger effectiveness to greatest extent.Tube head can be made into the standard block adaptive with the thermal-arrest core, is connected in series as required during use to form, and can cooperate the thermal-arrest core number of needs like this, forms the heat collector of different size, improves interchangeability and application flexibility greatly.Whole heat collector is made by aluminium alloy, easily reclaims.Al pipe butt welding is adopted with being connected of tube head in thermal-arrest core two ends, simple, the easy operation of welding procedure, reliability height.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. fin type solar heat-collecting core, comprise thermal-collecting tube (11), it is characterized in that: being used for of described thermal-collecting tube (11) is provided with discrete fin (12) towards the main heat-absorbent surface (111) of sunshine, has angle (13) between the main heat-absorbent surface of described fin (12) and described thermal-collecting tube (11).
2. a kind of fin type solar heat-collecting core according to claim 1 is characterized in that: described fin (12) is along at least one row of axially-aligned of thermal-collecting tube (11), and described fin (12) is formed in one with described thermal-collecting tube (11).
3. a kind of fin type solar heat-collecting core according to claim 1 and 2 is characterized in that: the angle (13) between the main heat-absorbent surface (111) of described fin (12) and thermal-collecting tube (11) is adjustable.
4. a kind of fin type solar heat-collecting core according to claim 3 is characterized in that: the wedge shape that described fin (12) is thin for the end, root is thick.
5. a kind of fin type solar heat-collecting core according to claim 4 is characterized in that: the spacing among the same row between the two adjacent fins (12) is 5mm-50mm, and the length of fin (12) is less than 60mm.
6. a kind of fin type solar heat-collecting core according to claim 4 is characterized in that: the fin (12) on the main heat-absorbent surface of described thermal-collecting tube (11) (111) is two rows.
7. a solar thermal collector comprises thermal-arrest core (1), connector (2), tube head (3) and pipe close (4); Described tube head (3) hollow; Each tube head (3) one end passes through described connector (2) and is connected with extraneous pipeline with described pipe close (4) sealing, the other end; Described thermal-arrest core (1) is arranged between two tube heads (3), be used to make heat exchange medium to enter the tube head (3) that is attached thereto from a connector (2), pass through thermal-arrest core (1) then and enter into another tube head (3), and flow out by another connector (2); Described thermal-arrest core (1) comprises thermal-collecting tube (11), it is characterized in that: being used for of described thermal-collecting tube (11) is provided with the discrete fin of at least one row (12) towards the axial integral type of main heat-absorbent surface (111) the upper edge thermal-collecting tube (11) of sunshine, has angle (13) between the main heat-absorbent surface (111) of described fin (12) and described thermal-collecting tube (11).
8. solar thermal collector according to claim 7 is characterized in that: the angle (13) between the main heat-absorbent surface (111) of described fin (12) and thermal-collecting tube (11) is adjustable.
9. solar thermal collector according to claim 8 is characterized in that: be parallel with a plurality of thermal-arrest cores (1) between two described tube heads (3).
10. solar thermal collector according to claim 9 is characterized in that described tube head (3) comprises the tube head unit (31) of a plurality of serial connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720141665XU CN201032298Y (en) | 2007-02-16 | 2007-03-13 | Fin type solar heat collection core and solar thermal collector |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720118749 | 2007-02-16 | ||
| CN200720118749.1 | 2007-02-16 | ||
| CNU200720141665XU CN201032298Y (en) | 2007-02-16 | 2007-03-13 | Fin type solar heat collection core and solar thermal collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201032298Y true CN201032298Y (en) | 2008-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720141665XU Expired - Lifetime CN201032298Y (en) | 2007-02-16 | 2007-03-13 | Fin type solar heat collection core and solar thermal collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201032298Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277908A (en) * | 2013-06-01 | 2013-09-04 | 广东五星太阳能股份有限公司 | Efficient plate solar air collector with louvered fin heat exchanging structure |
-
2007
- 2007-03-13 CN CNU200720141665XU patent/CN201032298Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277908A (en) * | 2013-06-01 | 2013-09-04 | 广东五星太阳能股份有限公司 | Efficient plate solar air collector with louvered fin heat exchanging structure |
| CN103277908B (en) * | 2013-06-01 | 2015-11-18 | 广东五星太阳能股份有限公司 | There is the high-efficient flat-plate solar energy air heat collector of louvered fin heat exchange structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN SHANYUAN ELECTRICAL APPLIANCE CO., LTD. Free format text: FORMER OWNER: ZHANG GUANGQUAN Effective date: 20100416 Free format text: FORMER OWNER: LIU YUNTAO |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518055 SHANYUAN INDUSTRIAL PARK, FUGUANG VILLAGE, XILI TOWN, NANSHAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 518055 SHANYUAN INDUSTRIAL PARK, FUGUANG VILLAGE, XILI TOWN, NANSHAN DISTRICT, SHENZHEN CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100416 Address after: 518055 Shenzhen Nanshan District City Xili town Fuguang Village Hill source Industrial Park Patentee after: Shenzhen Shanyuan Electric Appliance Co., Ltd. Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xili Town, Fuguang Village Hill source Industrial Park Patentee before: Zhang Guangquan Patentee before: Liu Yuntao |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080305 |