CN101779818B - Porous medium heat collection combined solar chimney food drier - Google Patents
Porous medium heat collection combined solar chimney food drier Download PDFInfo
- Publication number
- CN101779818B CN101779818B CN2009100527447A CN200910052744A CN101779818B CN 101779818 B CN101779818 B CN 101779818B CN 2009100527447 A CN2009100527447 A CN 2009100527447A CN 200910052744 A CN200910052744 A CN 200910052744A CN 101779818 B CN101779818 B CN 101779818B
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- CN
- China
- Prior art keywords
- heat collection
- poronsmedium
- solar
- solar chimney
- drying bed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
- F26B3/283—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun in combination with convection
- F26B3/286—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun in combination with convection by solar radiation
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
- Y02A40/924—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation using renewable energies
- Y02A40/926—Cooking stoves or furnaces using solar heat
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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
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
- Y02B40/18—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers using renewables, e.g. solar cooking stoves, furnaces or solar heating
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Sustainable Development (AREA)
- Toxicology (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
Abstract
The invention discloses a poronsmedium heat collection combined solar chimney food drier which comprises a drying bed, a solar heat collector and a glass cover, wherein the inner part of the whole glass cover is divided into a drying area, a heating area and an exhaust area; the drying bed is arranged in the drying area; the solar heat collector is positioned in the heating area; the heating area is positioned on the lower part of the drying bed, and the exhaust area is positioned on the upper part of the drying bed; and a solar chimney is arranged on the glass cover and communicated with the exhaust area. The solar chimney is arranged above the drying bed to reinforce the natural ventilation, thereby saving blower equipment in an original device. Meanwhile, a poronsmedium material is used for manufacturing the solar heat collector; and compared with that of a flat-panel solar heat collector, the heat collection capacity of the solar heat collector is increased. The heat transfer of a heat collection plate with air is not only limited on the surface of the heat collection plate, and the heat exchange of air with the poronsmedium material also exists in the heat collection plate so as to ensure that the heat exchange is greatly enhanced.
Description
Technical field:
The present invention relates to a kind of drying device, in particular, it relates to a kind of Poronsmedium heat collection combined solar chimney food drier.
Background technology:
Usually need dried foods to receive heating from the hot-air of solar thermal collector; Hot-air exchanges with dry thing generation caloic after getting into hothouse; Temperature reduces, so cause that by temperature total pressure head reduces, and needs air blast to send hot-air to hothouse usually and carries out forced convection; The heat exchange of traditional thermal-arrest plate heat medium is only on the surface of thermal-arrest plate, and only limitation is hot with the area of thermal-arrest plate.
Summary of the invention:
The present invention provides a kind of simple in structure for overcoming the prior art deficiency, is easy to processing and manufacturing, and a kind of Poronsmedium heat collection combined the letting very much that result of use is good can chimney food drier.
A kind of Poronsmedium heat collection combined solar chimney food drier provided by the invention, this drier is made up of drying bed, solar thermal collector and cloche, and whole cloche inside is divided into dry section, the thermal treatment zone, goes out the gas area; Said drying bed is arranged in the dry section; Solar thermal collector is positioned at the thermal treatment zone, and wherein the thermal treatment zone is positioned at the bottom of drying bed, and the district of giving vent to anger is positioned at the top of drying bed; Said cloche is provided with a solar chimney, this solar chimney with go out the gas area and be communicated with.
Described solar thermal collector is the Poronsmedium heat collection plate; Said Poronsmedium heat collection plate is through absorbing solar radiation; Become the dry air that temperature is higher and relative humidity is lower to the air heat in the dry section; And the draft that solar chimney makes progress in interior formation; This draft make dry air without any need for power move upward, and the food on the drying bed is carried out drying.
The said thermal treatment zone is tilting, and said cloche is provided with air intlet, and said air intlet is communicated with the said thermal treatment zone.
The porosity of said Poronsmedium heat collection plate is between 0.005 to 0.1, and the thickness of this Poronsmedium heat collection plate is between 0.005m to 0.01m.
Said Poronsmedium heat collection plate is copper or steel, and bearing of trend tilts to install along the thermal treatment zone, and gradient is between 15 ° to 60 °.
Said air intlet place is provided with plastic gauze.
The invention product that above technical scheme obtains, through solar chimney is set above drying bed, enhanced natural ventilating has saved the blower equipment in original device.In the design of thermal-arrest plate, adopt porous media material to make absorber plate, compare, increased the thermal-arrest capacity of solar thermal collector with flat-plate solar collector; The heat transfer of thermal-arrest plate and air is not confined to the surface of thermal-arrest plate, has the heat exchange of air and porous media material at the thermal-arrest intralamellar part yet, and heat exchange is strengthened greatly, has strengthened the exchanged heat between air and the thermal-arrest plate.
Description of drawings:
Further specify the present invention below in conjunction with the accompanying drawing and the specific embodiment.
Fig. 1 is a structural representation of the present invention.
The specific embodiment:
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
The present invention is confined to the surperficial problem of thermal-arrest plate for solutions needs air blast to send hot-air to heat transfer that hothouse carries out forced convection and thermal-arrest plate and air, and adopts a kind of Poronsmedium heat collection combined solar chimney food drier as shown in Figure 1.
With reference to Fig. 1; Be a kind of Poronsmedium heat collection combined solar chimney food drier provided by the invention; Comprise solar chimney 1, cloche 2, drying bed 3, porous media material thermal-arrest plate 4, triangular support bracket 6, whole cloche 2 inclined bottom are installed on the inclined-plane of triangular support bracket 6, and whole cloche 2 inside are divided into dry section 7, the thermal treatment zone 8, go out gas area 9; Drying bed 3 is arranged in the dry section 7; Porous media material thermal-arrest plate 4 is positioned at the thermal treatment zone 8, and wherein the thermal treatment zone 8 is positioned at the bottom of drying bed 3, goes out the top that gas area 9 is positioned at drying bed 3.Tilting and the cloche 2 in the thermal treatment zone 8 is provided with air intlet 5, and air intlet 5 is communicated with the thermal treatment zone 8.
8 bearing of trends tilt to install and are parallel with the bottom surface of the thermal treatment zone 8 Poronsmedium heat collection plate 4 along the thermal treatment zone, and Poronsmedium heat collection plate 4 adopts porous media material to make, and its porosity is between 0.005 to 0.1; Porosity is 0.005 o'clock, and the number in hole is more, and it is closeer to arrange; Hole is bigger when porosity is 0.1, and hole is arranged thinner, when porosity is 0.007 or 0.008; Pore size, it is moderate to be intervally arranged, and the heat exchange effect is also better.The gradient of Poronsmedium heat collection plate 4 is between 15 degree to 60 degree, and gradient is 15 when spending, and cross-ventilation is very fast; It is relatively low that air themperature promotes, and when gradient is 60 when spending, cross-ventilation is slower; Air themperature promotes higher; When gradient is 45 when spending, the raising of cross-ventilated speed and temperature is all moderate relatively, and is also better to dry thing drying effect.The thickness of Poronsmedium heat collection plate 4 is between 0.005m to 0.01m; When the thickness of Poronsmedium heat collection plate 4 was 0.005m, air was little in the exchanged heat of Poronsmedium heat collection plate 4 inside, mainly concentrated on the surface of Poronsmedium heat collection plate 4; When the thickness of Poronsmedium heat collection plate 4 is 0.01m; Poronsmedium heat collection plate 4 inside provide a large amount of hole and space to air exchange heat, but cross-ventilated speed may be more relatively slow, when the thickness of Poronsmedium heat collection plate 4 is 0.003m; Thickness is more moderate relatively, and the effect of cross-ventilation and heat exchange is also better relatively.
The heat exchange of traditional thermal-arrest plate heat medium a surface at thermal-arrest plate 4; Only limitation is hot with the area of thermal-arrest plate 4; The use of Poronsmedium heat collection plate 4 makes whole heat exchange carry out in Poronsmedium heat collection plate 4 inside, rises to volume heat by area heat; Simultaneously air also can be fully and 4 heat exchange of thermal-arrest plate in the bottom of Poronsmedium heat collection plate 4; Make that the heat exchange between Poronsmedium heat collection plate 4 and the air is strengthened greatly, also can scribble the coating that absorbs solar energy simultaneously on the surface of Poronsmedium heat collection plate 4, so more help the absorption of 4 pairs of solar radiations of Poronsmedium heat collection plate.
In the dry section 7 of porous media material thermal-arrest plate 4 tops drying bed 3 is installed, drying bed 3 is used to place dry thing, and the top of dry section 7 is provided with out gas area 9, the bottom of solar chimney 1 with go out gas area 9 and communicate.Use solar chimney 1 to strengthen the evaporation of moisture in flowing of hot-air and the food; Can accomplish the task of traditional drying technology better; At first the temperature in Poronsmedium heat collection plate 4 overlay areas is higher, and the water evaporates speed under the hot conditions will be higher than open-air natural drying process, and solar chimney 1 quickens flowing naturally of inner air by solar radiant energy simultaneously; Improved the air velocity on material surface; Increased the moist gradient on material surface under the transient condition, improved the motive force of water evaporates, made whole process obtain reinforcement.The use of solar chimney 1 can just can be passed through drying bed 3 so that the thermal current that 4 heating of Poronsmedium heat collection plate produce need not any auxiliary power; Food on the drying bed 3 is carried out heating and dehumidification; Remove the devices such as air blast that produce forced convection from, fully saved the energy and cost of investment.
5 places are provided with plastic gauze at air intlet, to prevent in insect and other material admission passages.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (5)
1. Poronsmedium heat collection combined solar chimney food drier, this drier is made up of drying bed, solar thermal collector and cloche, and whole cloche inside is divided into dry section, the thermal treatment zone, goes out the gas area; Said drying bed is arranged in the dry section; Solar thermal collector is positioned at the thermal treatment zone, and wherein the thermal treatment zone is positioned at the bottom of drying bed, and the district of giving vent to anger is positioned at the top of drying bed; It is characterized in that; Said cloche is provided with a solar chimney, this solar chimney with go out the gas area and be communicated with, described solar thermal collector is the Poronsmedium heat collection plate; The porosity of said Poronsmedium heat collection plate is between 0.005 to 0.1, and the thickness of this Poronsmedium heat collection plate is between 0.005m to 0.01m.
2. a kind of Poronsmedium heat collection combined solar chimney food drier according to claim 1 is characterized in that the said thermal treatment zone is tilting, and said cloche is provided with air intlet, and said air intlet is communicated with the said thermal treatment zone.
3. a kind of Poronsmedium heat collection combined solar chimney food drier according to claim 1 is characterized in that, said Poronsmedium heat collection plate is copper or steel, and bearing of trend tilts to install along the thermal treatment zone, and gradient is between 15 ° to 60 °.
4. a kind of Poronsmedium heat collection combined solar chimney food drier according to claim 1 is characterized in that, described Poronsmedium heat collection plate surface scribbles the coating that absorbs solar energy.
5. a kind of Poronsmedium heat collection combined solar chimney food drier according to claim 2 is characterized in that, said air intlet place is provided with plastic gauze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100527447A CN101779818B (en) | 2009-06-09 | 2009-06-09 | Porous medium heat collection combined solar chimney food drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100527447A CN101779818B (en) | 2009-06-09 | 2009-06-09 | Porous medium heat collection combined solar chimney food drier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101779818A CN101779818A (en) | 2010-07-21 |
| CN101779818B true CN101779818B (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100527447A Expired - Fee Related CN101779818B (en) | 2009-06-09 | 2009-06-09 | Porous medium heat collection combined solar chimney food drier |
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| Country | Link |
|---|---|
| CN (1) | CN101779818B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091415B (en) * | 2016-08-04 | 2018-04-10 | 福建工程学院 | A kind of air vacuum tube solar thermal collector |
| CN111121440A (en) * | 2020-01-17 | 2020-05-08 | 烟台欧森纳地源空调股份有限公司 | Solar drying device |
| CN112728790A (en) * | 2021-01-25 | 2021-04-30 | 上海海事大学 | Plate type solar chimney phase change capsule heat storage device with tree fork flow channel |
| CN117989655A (en) * | 2024-03-04 | 2024-05-07 | 中国人民解放军陆军工程大学 | Solar flat-plate air collector and phase-change heat storage combined ventilation time-sharing regulation and control system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2031074U (en) * | 1988-07-02 | 1989-01-18 | 黎智 | Thin magnetic-pump air-conditioner |
| CN2859407Y (en) * | 2005-09-15 | 2007-01-17 | 中国农业机械化科学研究院呼和浩特分院 | Solar-wind power forage grass drying equipment |
| CN2876656Y (en) * | 2006-03-31 | 2007-03-07 | 李全解 | Fast high-temp solar drier |
| CN2937969Y (en) * | 2006-06-12 | 2007-08-22 | 孙嘉林 | Movable solar drier |
| CN101144680A (en) * | 2006-09-12 | 2008-03-19 | 黄金伦 | Solar energy highly effective drying large glass room |
| CN201126305Y (en) * | 2007-10-31 | 2008-10-01 | 河南桑达能源环保有限公司 | Drier heating forcedly by solar |
-
2009
- 2009-06-09 CN CN2009100527447A patent/CN101779818B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2031074U (en) * | 1988-07-02 | 1989-01-18 | 黎智 | Thin magnetic-pump air-conditioner |
| CN2859407Y (en) * | 2005-09-15 | 2007-01-17 | 中国农业机械化科学研究院呼和浩特分院 | Solar-wind power forage grass drying equipment |
| CN2876656Y (en) * | 2006-03-31 | 2007-03-07 | 李全解 | Fast high-temp solar drier |
| CN2937969Y (en) * | 2006-06-12 | 2007-08-22 | 孙嘉林 | Movable solar drier |
| CN101144680A (en) * | 2006-09-12 | 2008-03-19 | 黄金伦 | Solar energy highly effective drying large glass room |
| CN201126305Y (en) * | 2007-10-31 | 2008-10-01 | 河南桑达能源环保有限公司 | Drier heating forcedly by solar |
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| Publication number | Publication date |
|---|---|
| CN101779818A (en) | 2010-07-21 |
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Granted publication date: 20120815 Termination date: 20150609 |
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| EXPY | Termination of patent right or utility model |