CN102901330A - Solar dryer - Google Patents
Solar dryer Download PDFInfo
- Publication number
- CN102901330A CN102901330A CN2012104563124A CN201210456312A CN102901330A CN 102901330 A CN102901330 A CN 102901330A CN 2012104563124 A CN2012104563124 A CN 2012104563124A CN 201210456312 A CN201210456312 A CN 201210456312A CN 102901330 A CN102901330 A CN 102901330A
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- Prior art keywords
- heat
- pipeline
- solar
- plate
- pipe
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- Pending
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- 238000009835 boiling Methods 0.000 claims abstract description 4
- 241000270295 Serpentes Species 0.000 claims description 9
- 239000006096 absorbing agent Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 3
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 208000002925 dental caries Diseases 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000010992 reflux Methods 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 abstract description 11
- 239000011148 porous material Substances 0.000 abstract 2
- 230000009102 absorption Effects 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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Classifications
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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
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a solar dryer. The solar dryer comprises a solar heat collector, a medium pipeline, a ventilating pipeline and a drying bin; a heat absorbing body of the heat collector is formed by a multi-pore heat absorbing plate which is provided with an S-shaped bend on the back surface; the S-shaped bend is filled by a heat-conducting medium with boiling point of about 30 DEG C; a heat releasing pipeline, which is divided into a plurality of layers, is arranged at the upper layer of the drying bin; and the heat releasing pipeline is integrally connected with the heat absorbing body through a pipeline. According to the solar dryer, the heat-conducting medium circularly flows between the heat absorbing body and the heat releasing pipeline, and the heat is quickly transmitted to a drying object, so that the heat loss is reduced, and the drying speed is raised; and the air absorbs heat during passing through the multi-pore heat absorbing plates, so that hot air can be generated, and the hot air is conveyed into the drying bin to remove the moisture.
Description
Technical field
The present invention relates to solar energy utilization technique and crops dry technology, refer in particular to a kind of solar dryer, the solar thermal collector absorber of this drier is made of coiled pipe and porous plate, can heat heat-conducting medium and air, and the indoor design of dryness storehouse has the heating pipeline.
Background technology
In the dry field of crops, common drying source mostly is fire coal or fuel Heating now, and hot air temperature causes product quality to descend about 200 ℃ easily.It is about 50 ℃ that the solar thermal collector routine is utilized temperature, just in time meets the optimum temperature range of crops drying, and the solar energy wide material sources, cheap, just is being suitable for dry crops.
At present existing a plurality of patents about solar dryer, but owing to solar energy utilization ratio hangs down reasons such as reaching high cost, still remain to be promoted.Below list several existing Patents:
(application number: 200620057287.2) propose a kind of solar dryer, its thermal-arrest partly is collection flat heat to patent " quick high-temp solar dryer ", and air flows through heat absorption from the passage between flat board and the transparent cover plate, enters drying device and carries out drying.
(application number: 201010600814.0) propose a kind of solar dryer, its thermal-arrest partly is heat collecting glass tube to patent " solar dryer ", and by the two-period form fin heat pipe heat is delivered to drying box.Waste heat reclaims by the Waste Heat Recovery heat exchanger.
Existing patent mostly is utilizes the solar energy heating air, then utilizes the hot-air will be as drying.But because the capacity of heat transmission of hot-air itself is lower, so that a large amount of heats does not take full advantage of, reduced the whole thermal efficiency.
Summary of the invention
In order to improve the heat transfer rate between solar thermal collector and the dryness storehouse, promote the overall thermal efficient of drier, the present invention proposes following technical scheme.
The present invention proposes a kind of solar dryer, structure comprises solar thermal collector, medium pipeline, ventilation shaft and dryness storehouse, wherein the solar thermal collector concrete structure comprises snake bend, porous absorber plate, insulation shell, transparent cover plate, air inlet pipe, escape pipe, be filled with the heat-conducting medium of boiling point about 30 ℃ in the snake bend, and be welded on the porous absorber plate, the porous collecting plate is divided into ante-chamber and back cavity with heat collector, and air inlet pipe is communicated with back cavity, and escape pipe is communicated with ante-chamber; The dryness storehouse structure comprises blast pipe, discharge pipe, blower fan, porous plate, heat release pipeline, the heat release pipeline is divided into some layers, one deck and the porous plate of foot are fixed together, the snake bend of heat release pipeline and flat-plate solar collector passes through pipeline communication, medium enters from the upper strata pipeline, reflux from lower floor's pipeline, blast pipe is communicated with the heat collector escape pipe through blower fan, and discharge pipe is positioned at the top of dryness storehouse.Porous plate is separated into two cavitys with dryness storehouse, and blower fan is placed by lower floor, and the thing that is dried is placed on the upper strata.The heat release tube contacts of thing and the multilayer of being dried and heat absorption, hot-air passes the thing that is dried from porous plate, and moisture is taken away.The heat release pipeline is that the metal tube of multilayer serpentine bend is made.The runner of the heat absorption in-vivo medium of flat-plate solar collector is snakelike, is convenient to abundant heat absorption.
By the structure of improvement flat-plate solar collector absorber and the composition of inner heat-conducting medium, can increase the flow velocity of medium, improve the exchange velocity of heat between flat-plate solar collector and the dryness storehouse.Heat-conducting medium circulates between heat release pipeline and absorber, undergoes phase transition, and with the heat transferred thing that is dried, the thing temperature that is dried is raise.The aperture heat absorption that air passes on the heat collector porous plate becomes hot-air, and blower fan makes hot-air flow through the thing that is dried, and moisture is taken away, and has reduced thermal loss.
Description of drawings
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is the overall schematic of this device.
Fig. 2 is dryness storehouse A-A profile.
Fig. 3 is dryness storehouse B-B profile.
Fig. 4 is the front elevation of heat collector.
Fig. 5 is the C-C profile of dryness storehouse.
Fig. 6 is the heat absorbing part back view of heat collector.
Fig. 7 is heat collector D-D profile.
The position of marking is respectively among the figure: 1, the fluid mouth of pipe; 2, the feed liquor mouth of pipe; 3, insulation shell; 4, escape pipe; 5, air inlet pipe; 6, transparent cover plate; 7, snake bend; 8, porous absorber plate; 9, medium ascending tube; 10, medium back flow pipe; 11, blast pipe; 12, discharge pipe; 13, blower fan; 14, dryness storehouse housing; 15, heat release pipeline; 16, porous plate; 17, ante-chamber; 18, back cavity.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are described further.
In the sun-drenched situation, low boiling heat-conducting medium heat absorption vaporization in the snake bend 7, along pipeline through the fluid mouth of pipe 1, medium ascending tube 9 flow at a high speed heat release pipeline 15 in, and heat release liquefaction, the medium after the liquefaction flows back to snake bend 7 through medium back flow pipe 10 and the feed liquor mouth of pipe 2.Blower fan 13 starts, and air from air inlet pipe 5 suction heat collector ante-chambers 17, is passed 8 heat absorptions of porous absorber plate, becomes hot-air and enters dryness storehouse by escape pipe 4, blast pipe 11.The thing that is dried is deposited on the porous plate 16, and heat release pipeline 15 is covered absorbing heat from heat release pipeline 15.Hot-air passes porous plate 16 and flows through the thing that is dried, and moisture is taken away, and discharges through discharge pipe 12.
Claims (2)
1. solar dryer, this device is by solar thermal collector, medium pipeline, ventilation shaft and dryness storehouse, wherein the solar thermal collector concrete structure comprises snake bend (7), porous absorber plate (8), insulation shell (3), transparent cover plate (6), air inlet pipe (5), escape pipe (4), be filled with the heat-conducting medium of boiling point about 30 ℃ in the snake bend (7), and be welded on the porous absorber plate (8), porous collecting plate (8) is divided into ante-chamber (17) and back cavity (18) with heat collector, air inlet pipe (5) is communicated with back cavity (18), and escape pipe (4) is communicated with ante-chamber (17); The dryness storehouse structure comprises blast pipe (11), discharge pipe (12), blower fan (13), porous plate (16), heat release pipeline (15), heat release pipeline (15) is divided into some layers, one deck of foot and porous plate (16) are fixed together, heat release pipeline (15) passes through pipeline communication with the snake bend (7) of flat-plate solar collector, medium enters from the upper strata pipeline, reflux from lower floor's pipeline, blast pipe (11) is communicated with the heat collector escape pipe through blower fan (13), and discharge pipe (12) is positioned at the top of dryness storehouse.
2. a kind of solar dryer according to claim 1, it is characterized in that: porous plate (16) is separated into two cavitys with dryness storehouse, blower fan (13) is placed by lower floor, and the thing that is dried is placed on the upper strata, and heat release pipeline (15) is made for the metal tube of multilayer serpentine bend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104563124A CN102901330A (en) | 2012-11-14 | 2012-11-14 | Solar dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104563124A CN102901330A (en) | 2012-11-14 | 2012-11-14 | Solar dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102901330A true CN102901330A (en) | 2013-01-30 |
Family
ID=47573702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104563124A Pending CN102901330A (en) | 2012-11-14 | 2012-11-14 | Solar dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102901330A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322779A (en) * | 2013-06-20 | 2013-09-25 | 广西大学 | Combined type solar dryer |
| CN104215040A (en) * | 2014-06-19 | 2014-12-17 | 冯卓林 | Solar air energy drying machine |
| CN104613737A (en) * | 2015-01-23 | 2015-05-13 | 广西吉顺能源科技有限公司 | Solar energy drying device |
| CN107014170A (en) * | 2017-05-23 | 2017-08-04 | 山东大学 | A kind of hybrid solar drying device and drying means for coupling both heat collecting device |
| CN108753264A (en) * | 2018-07-16 | 2018-11-06 | 东南大学 | Phase change energy-storage type solar dryer and its phase-change accumulation energy layer preparation method |
| CN112460929A (en) * | 2020-11-16 | 2021-03-09 | 赵燕虎 | Material waterproof device for building construction site |
| CN117029449A (en) * | 2023-09-19 | 2023-11-10 | 常州大学 | A drying device for PCM heat storage absorber based on graphene nanocoating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57139272A (en) * | 1981-02-19 | 1982-08-28 | Chubu Kurieeto Kogyo Kk | Solar heat dryer |
| CN102506566A (en) * | 2011-10-28 | 2012-06-20 | 镇江新梦溪能源科技有限公司 | Solar dryer with drying agent to absorb moisture |
| CN102607244A (en) * | 2012-04-05 | 2012-07-25 | 镇江新梦溪能源科技有限公司 | Tube type integrated solar dryer |
| CN102607099A (en) * | 2012-04-05 | 2012-07-25 | 镇江新梦溪能源科技有限公司 | Passive type solar heat collecting box |
| CN202494289U (en) * | 2012-02-22 | 2012-10-17 | 曲立生 | Airing device for traditional Chinese medicine |
-
2012
- 2012-11-14 CN CN2012104563124A patent/CN102901330A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57139272A (en) * | 1981-02-19 | 1982-08-28 | Chubu Kurieeto Kogyo Kk | Solar heat dryer |
| CN102506566A (en) * | 2011-10-28 | 2012-06-20 | 镇江新梦溪能源科技有限公司 | Solar dryer with drying agent to absorb moisture |
| CN202494289U (en) * | 2012-02-22 | 2012-10-17 | 曲立生 | Airing device for traditional Chinese medicine |
| CN102607244A (en) * | 2012-04-05 | 2012-07-25 | 镇江新梦溪能源科技有限公司 | Tube type integrated solar dryer |
| CN102607099A (en) * | 2012-04-05 | 2012-07-25 | 镇江新梦溪能源科技有限公司 | Passive type solar heat collecting box |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322779A (en) * | 2013-06-20 | 2013-09-25 | 广西大学 | Combined type solar dryer |
| CN103322779B (en) * | 2013-06-20 | 2015-11-04 | 广西大学 | Combined solar dryer |
| CN104215040A (en) * | 2014-06-19 | 2014-12-17 | 冯卓林 | Solar air energy drying machine |
| CN104215040B (en) * | 2014-06-19 | 2016-04-20 | 冯卓林 | A kind of solar energy/air energy drying machine |
| CN104613737A (en) * | 2015-01-23 | 2015-05-13 | 广西吉顺能源科技有限公司 | Solar energy drying device |
| CN107014170A (en) * | 2017-05-23 | 2017-08-04 | 山东大学 | A kind of hybrid solar drying device and drying means for coupling both heat collecting device |
| CN108753264A (en) * | 2018-07-16 | 2018-11-06 | 东南大学 | Phase change energy-storage type solar dryer and its phase-change accumulation energy layer preparation method |
| CN108753264B (en) * | 2018-07-16 | 2024-04-05 | 东南大学 | Phase-change energy-storage type solar dryer and preparation method of phase-change energy-storage layer thereof |
| CN112460929A (en) * | 2020-11-16 | 2021-03-09 | 赵燕虎 | Material waterproof device for building construction site |
| CN117029449A (en) * | 2023-09-19 | 2023-11-10 | 常州大学 | A drying device for PCM heat storage absorber based on graphene nanocoating |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130130 |