CN202204187U - Solar air heat collecting device with fluctuated type strip fins - Google Patents
Solar air heat collecting device with fluctuated type strip fins Download PDFInfo
- Publication number
- CN202204187U CN202204187U CN2011202881119U CN201120288111U CN202204187U CN 202204187 U CN202204187 U CN 202204187U CN 2011202881119 U CN2011202881119 U CN 2011202881119U CN 201120288111 U CN201120288111 U CN 201120288111U CN 202204187 U CN202204187 U CN 202204187U
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- Prior art keywords
- air
- heat
- collecting device
- plate
- strip fins
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- 238000004891 communication Methods 0.000 claims description 19
- 230000035699 permeability Effects 0.000 claims description 14
- 238000010792 warming Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 abstract 1
- 230000003416 augmentation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 206010020843 Hyperthermia Diseases 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000036031 hyperthermia Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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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- Photovoltaic Devices (AREA)
Abstract
The utility model relates to a solar air heat collecting device with fluctuated type strip fins and belongs to the technical field of solar energy utilization and building energy saving. The device comprises a light-transmitting cover plate, a heat collecting board, a ventilation pipe, a sealed air layer and an air flowing passage. At least two groups of strip fins are arranged in the air flowing passage along the flowing direction of air; the two adjacent groups of strip fins are in scattered arrangement; the transverse section of each group of strip fins is a fluctuated sawtooth shape; and a flow guide structure is arranged in the air flowing passage close to an air inlet. In the utility model, the heat exchange area between the air and the heat collecting board is greatly increased by using the strip fins, and the heat exchange efficiency is increased; and the flow field of the air flowing passage is optimized by using the flow guide structure. The components of the device are made from common materials and made by common manufacturing processes, so that the device has the advantages of simple process, low manufacturing cost, and the like. The solar air heat collecting device with the fluctuated type strip fins can be applied to the fields of low-temperature heat utilization of solar energy, such as heating, drying, and the like, is low in cost and convenient in operation and maintenance, and has wide application prospects.
Description
Technical field
The utility model relates to a kind of solar energy heat collection equipment, relates in particular to a kind of air heat-collecting device that utilizes solar radiation heat air, belongs to solar energy utilization and energy-saving building technology field.
Background technology
In today that traditional energy (like coal, oil etc.) day is becoming tight, regenerative resource (like solar energy, wind energy, water ability, biomass energy etc.) has had significant progress as alternative energy source.In north China, sunshine is abundant, belongs to I, II, III class area ([1] Chris C.S.Lau that solar energy utilizes; Joseph C.Lam; Liu Yang, Climate classification and passive solar design implications in China, Energy Conversion & Management; 2007:2006～2015), thus solar energy be utilized in northern area bright development prospect arranged.Because the north China weather is cold, heating energy consumption is big, if utilize solar energy to solve a part of heat load, will reduce discharging China's building energy conservation, and important effect is played in especially villages and small towns building energy conservation reduction of discharging work.
Solar energy air heat-collecting device is one of common technology of solar thermal utilization.Because the characteristic that has of air itself, air heat-collecting device many with flat be main, and flat heat collector is because its outside heat dissipation capacity, its efficient generally lower (comparing with the vacuum tube heat collector).Especially air system, because the thermal capacitance of air is less, the heat that causes the air of unit mass flow to carry is less, and then causes that the framework temperature is higher, it is more outwards to dispel the heat.Therefore, the raising of solar energy air heat-collecting device efficient should be a main path to reduce the outside heat loss of heat collector.And the mode that reduces heat loss mainly contains two kinds: the one, and the heat-insulating property that increases heat collector itself reduces heat loss; The 2nd, reduce the heat exchange thermal resistance between air and the thermal-arrest plate, improve heat exchange efficiency.For first kind of mode that reduces heat loss; Numerous air heat-collecting devices are many to increase the frame insulating layer thickness or to adopt (the application (patent) number: 85200928 of honeycomb light-passing board; Half honeycomb dual reflux solar energy air heat-collecting device) mode is achieved; But some insulation material or light transmissive material are comparatively expensive, cause the cost of final heat collector to improve; For second kind of mode that reduces heat loss; Most heat collectors are through improving rotation speed of fan, adopting turbulence columns, deflection plate (number of patent application: 200710195030; The tortuous flow doubleeffect heating solar air heat-collecting device) or double-deck air channel (number of patent application: 200720034396; Solar energy air heat-collecting device) etc. mode realizes, though this way to having raised the efficiency certain help, the amplitude that efficient improves is limited.In addition, increase flow velocity and can increase power consumption to a certain extent, make operating cost improve.
The utility model content
The purpose of the utility model provides a kind of solar energy air heat-collecting device that has fluctuating type strip fin, with the efficient of further raising air heat-collecting device, reduces the production and the operating cost of product simultaneously.
The technical scheme of the utility model is following:
A kind of solar energy air heat-collecting device that has fluctuating type strip fin contains euphotic cover plate, thermal-arrest plate, blast pipe, air inlet, air outlet, discharge pipe, backboard and side plate; Be equipped with warming plate on described backboard and the side plate; Form sealing air layer between described euphotic cover plate and the thermal-arrest plate, described thermal-arrest plate and be arranged between the warming plate on the backboard and be provided with air communication channel; On the framework near discharge pipe, be provided with permeability cell, an end of permeability cell is connected with air communication channel, and the other end of permeability cell stretches out outside the framework, and in the outlet of permeability cell sealing-plug is installed; Described blast pipe and discharge pipe are positioned on the center line of described air communication channel; It is characterized in that: the direction along circulation of air in air communication channel is provided with at least two group strip fins; Layout straggly between the two adjacent groups strip fin, and the cross section of every group of strip fin is the square dentation of fluctuating type; In air communication channel, be provided with flow-guiding structure near the air inlet place and along the direction of circulation of air.
Described every group of strip fin is 200～300mm along the length L of circulation of air direction, and the width D of square tooth is 20～40mm, and the height H of square tooth is 40～60mm; Described thermal-arrest plate and strip fin all adopt aluminium sheet.
The utlity model has following advantage and beneficial effect:
1. utilize fluctuating type strip fin to realize passive augmentation of heat transfer.Utilize strip fin can increase the heat exchange area between air and the thermal-arrest plate greatly, utilize the slit of the layout straggly between the strip fin to increase air agitation simultaneously, improve the coefficient of heat transfer.The advantage of this two aspect reduces the heat exchange thermal resistance between air and the thermal-arrest plate greatly, realizes passive augmentation of heat transfer.
2. utilize flow-guiding structure to optimize the flow field of air communication channel, make the heat collector flow field more even, avoid localized hyperthermia, improve the efficient of heat collector to a certain extent.
Description of drawings
The solar energy air heat-collecting device structural principle sketch map that Fig. 1 provides for the utility model.
Fig. 2 is the structural representation of strip fin.
Fig. 3 is flow-guiding structure and putting position sketch map.
Each parts is represented among the figure: the 1-euphotic cover plate; 2-occluded air layer; 3-thermal-arrest plate; The 4-strip fin; The 5-backboard; The 6-warming plate; The 7-flow-guiding structure; The 8-blast pipe; The 9-discharge pipe; The 10-air communication channel; The 11-permeability cell; The 12-sealing-plug; 13-fluid sealant and press strip; The 14-cushion block; The 15-side plate; The 16-air inlet; The 17-air outlet.
The specific embodiment
Be further described below in conjunction with operation principle, the concrete structure of accompanying drawing the utility model.
The operation principle of described solar energy air heat-collecting device sees through euphotic cover plate 1 heating thermal-arrest plate 2 for utilizing the solar radiation heat, and then heats the air of the thermal-arrest plate 2 of flowing through through the mode of heat convection.
The solar energy air heat-collecting device structure principle chart that Fig. 1 provides for the utility model, this solar energy air heat-collecting device contain euphotic cover plate 1, thermal-arrest plate 3, blast pipe 8, discharge pipe 9, air inlet 16, air outlet 17, backboard 5 and side plate 15; Be equipped with warming plate 6 on described backboard 5 and the side plate 15; Form sealing air layer 2 between described euphotic cover plate 1 and the thermal-arrest plate 3, described thermal-arrest plate 3 and be arranged between the warming plate 6 on the backboard 5 and be provided with air communication channel 10; On the framework 15 near discharge pipe 9, be provided with permeability cell 11, an end of permeability cell 11 is connected with air communication channel 10, and the other end of permeability cell 11 stretches out outside the framework, and in the outlet of permeability cell 11 sealing-plug 12 is installed; Described blast pipe 8 is positioned on the center line of described air communication channel 10 with discharge pipe 9.
Direction along circulation of air in air communication channel 10 is provided with at least two group strip fins 4, layout straggly between the two adjacent groups strip fin, and the cross section of every group of strip fin is the square dentation of fluctuating type.Fig. 2 is the structural representation of strip fin.Strip fin is set in air communication channel can realizes passive augmentation of heat transfer.Utilize strip fin 4 can increase the heat exchange area between air and the thermal-arrest plate greatly, utilize the slit of the layout straggly between the fluctuating type strip fin to increase air agitation simultaneously, improve the coefficient of heat transfer.The advantage of this two aspect reduces the heat exchange thermal resistance between air and the thermal-arrest plate 3 greatly, realizes passive augmentation of heat transfer.In order to reach good Heat-collecting effect, the length L along the circulation of air direction of every group of strip fin 4 is 200～300mm, and the width D of square tooth is 20～40mm, and the height H of square tooth is 40～60mm.In addition, thermal-arrest plate 3 all adopts aluminium sheet with strip fin 4.
Fig. 3 is flow-guiding structure and putting position sketch map.In air communication channel, be provided with flow-guiding structure 7 near air inlet 16 places and along the direction of circulation of air; Flow-guiding structure 7 is made up of two flow deflectors at an angle; Can make air-flow as far as possible to diffusion all around; Feasible more even perpendicular to the air-flow on the air communication channel section, avoided the localized hyperthermia in the heat collector, help to improve the collecting efficiency of heat collector.
In the specific embodiment, utilize modes such as soldering, roll welding that strip fin 4 is fixed on the thermal-arrest plate 3, guarantee that strip fin 4 contacts with thermal-arrest plate 3 well, so that reduce thermal contact resistance; Thermal-arrest plate 3 all adopts aluminium sheet with strip fin 4.Thermal-arrest plate 3 and the side plate 15 that has warming plate 6 are fixed; Along the circulation of air direction, flow-guiding structure 7 is placed the rear side near air inlet 16, the central lines of its center line and air inlet 16; On thermal-arrest plate 3, place some cushion blocks 14, so light-passing board lid 1 just can and thermal-arrest plate 3 between form occluded air layer 2, cushion block 14 adopts material such as rubber with the minimizing heat bridge as far as possible; Permeability cell 11 needs good seal with collector frame, can realize through smear modes such as fluid sealant with the junction of permeability cell 11 at side plate 15.
The utility model can be used for solar low-temperature heat utilization fields such as heat supply, drying.Each parts of described solar energy air heat-collecting device all adopt material commonly used and manufacture craft, and technology is simple, and the cost of this kind heat collector is about 400 yuan/m2 collector area, and is cheap, is with a wide range of applications.
Claims (2)
1. a solar energy air heat-collecting device that has fluctuating type strip fin contains euphotic cover plate (1), thermal-arrest plate (3), blast pipe (8), air inlet (16), air outlet (17), discharge pipe (9), backboard (5) and side plate (15); Be equipped with warming plate (6) on described backboard (5) and the side plate (15); Form sealing air layer (2) between described euphotic cover plate (1) and the thermal-arrest plate (3), described thermal-arrest plate (3) and be arranged between the warming plate (6) on the backboard (5) and be provided with air communication channel (10); On the framework (15) near discharge pipe (9), be provided with permeability cell (11), an end of permeability cell (11) is connected with air communication channel (10), and the other end of permeability cell (11) stretches out outside the framework, and in the outlet of permeability cell (11) sealing-plug (12) is installed; Described blast pipe (8) and discharge pipe (9) are positioned on the center line of described air communication channel (10); It is characterized in that: the direction along circulation of air in air communication channel (10) is provided with at least two group strip fins (4); Layout straggly between the two adjacent groups strip fin, and the cross section of every group of strip fin is the square dentation of fluctuating type; In air communication channel, locate and be provided with flow-guiding structure (7) along the direction of circulation of air near air inlet (16).
2. according to the described a kind of solar energy air heat-collecting device that has fluctuating type strip fin of claim 1; It is characterized in that: described every group of strip fin (4) is 200～300mm along the length L of circulation of air direction; The width D of square tooth is 20～40mm, and the height H of square tooth is 40～60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202881119U CN202204187U (en) | 2011-08-09 | 2011-08-09 | Solar air heat collecting device with fluctuated type strip fins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202881119U CN202204187U (en) | 2011-08-09 | 2011-08-09 | Solar air heat collecting device with fluctuated type strip fins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202204187U true CN202204187U (en) | 2012-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202881119U Expired - Fee Related CN202204187U (en) | 2011-08-09 | 2011-08-09 | Solar air heat collecting device with fluctuated type strip fins |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202204187U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353155A (en) * | 2011-08-09 | 2012-02-15 | 清华大学 | Solar air heat collection device with fluctuant strip fins |
| CN106288458A (en) * | 2015-06-01 | 2017-01-04 | 南京索乐优节能科技有限公司 | A kind of transparent heat-insulation airduct for absorbing solar energy |
-
2011
- 2011-08-09 CN CN2011202881119U patent/CN202204187U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353155A (en) * | 2011-08-09 | 2012-02-15 | 清华大学 | Solar air heat collection device with fluctuant strip fins |
| CN106288458A (en) * | 2015-06-01 | 2017-01-04 | 南京索乐优节能科技有限公司 | A kind of transparent heat-insulation airduct for absorbing solar energy |
| CN106288458B (en) * | 2015-06-01 | 2018-05-22 | 南京索乐优节能科技有限公司 | A kind of transparent heat-insulation air hose for being used to absorb solar energy |
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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: 20120425 Termination date: 20130809 |