CN214406707U - Solar drying device - Google Patents
Solar drying device Download PDFInfo
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- CN214406707U CN214406707U CN202120143141.4U CN202120143141U CN214406707U CN 214406707 U CN214406707 U CN 214406707U CN 202120143141 U CN202120143141 U CN 202120143141U CN 214406707 U CN214406707 U CN 214406707U
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- lens
- solar drying
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- 238000001035 drying Methods 0.000 title claims abstract description 45
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000009833 condensation Methods 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 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
Abstract
The utility model discloses a solar drying device, which comprises a storage rack and a lens, wherein the storage rack is used for placing objects to be dried, the lens is arranged above the storage rack, the lens comprises a plurality of prismatic groups, the light rays which enter the lens are converged at the two sides of the shelf through the prismatic groups so as to heat and dry the objects on the shelf, in the using process, an object to be dried is placed on the storage rack, the solar rays enter the lens, the incident solar rays are refracted and converged to two sides of the storage rack through the ridge group on the lens, thereby the object on the object shelf is heated at two sides by low-power light condensation, and the object shelf with vertical design can realize the uniform irradiation of two sides of the washed object, and vertical place space utilization is high, and the water droplet drips easily, through light and heat conversion, can realize fast drying, the utility model is suitable for a solar energy technical field.
Description
Technical Field
The utility model is used for solar energy technical field especially relates to a solar drying device.
Background
For the fast drying technology, most of the methods of heating air are adopted, and electric energy is generally used for direct heating. Some drying methods combined with solar energy also perform photothermal conversion by absorbing through a heat absorbing plate, heat air by the heat absorbing plate and then dry by hot air, or convert solar energy into electric energy firstly by using a photovoltaic cell panel, then convert the electric energy into heat energy, then heat air, take away moisture on washings by the hot air, and the method using the hot air as an intermediate medium and performing multiple energy conversion has the advantages of low efficiency, multiple system components and complex structure.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a solar drying device can improve drying efficiency.
An embodiment of the utility model provides a solar drying device, include:
the storage rack is used for placing objects to be dried;
lens, establish the supporter top, lens include picture frame and a plurality of stupefied group, stupefied group is used for inciting to the light refraction of lens forms the focal plane, each stupefied group is including a plurality of little stupefied that the inclination is the same, little stupefied on the lens use the supporter is the plane of symmetry, the symmetric arrangement is in on the picture frame, the arrangement equation of stupefied group does,
Rn＝X1+X2+X3…+Xn，
with the center of the lens as the origin, RnIs the distance from the end of the nth ridge group to the origin, XnIs the width of the N-th ridge group, N is the refractive index of the micro-ridges, f1Is the distance between the focal plane tip and the origin, f2Is the distance between the bottom of the focal plane and the origin, αnIs the included angle between the micro-arris of the nth arris group and the mirror frame.
The utility model discloses solar drying device has following beneficial effect at least: in the use, will treat that the object of drying places on the supporter, and solar ray jets into lens, and the stupefied group through on the lens will jet into the solar ray refraction and assemble the both sides of supporter to object on the opposition thing frame carries out two-sided heating, makes its stoving, and this kind of drying device is higher owing to the effect that possesses two-sided stoving, its drying efficiency.
According to the utility model discloses a solar drying device of other embodiments, solar drying device still includes the lens support, lens are installed on the lens support, the supporter passes through the lens support mounting is in the lens below.
According to the utility model discloses a solar drying device of other embodiments, solar drying device still includes the braced truss, the lens support mounting be in on the braced truss.
According to the utility model discloses a solar drying device of other embodiments, the braced truss with lens support swing joint.
According to the utility model discloses a solar drying device of other embodiments, be equipped with first drive arrangement on the truss, first drive arrangement is used for the drive lens support rotates, so that the sun is trailed to lens.
According to the utility model discloses a solar drying device of other embodiments, solar drying device still includes second drive arrangement, second drive arrangement is used for the drive the bracing truss, so that the bracing truss drives the integrated device and rotates.
According to the utility model discloses a solar drying device of other embodiments, first drive arrangement with second drive arrangement is all through single chip microcomputer control.
According to other embodiments of the utility model discloses a solar drying device, the supporter is the grid structure of vertical setting.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of an embodiment of the present invention in which light rays form a focal plane after being incident on a lens;
FIG. 3 is a schematic cross-sectional view of a prior art mid-point focusing Fresnel lens condensing light;
FIG. 4 is a side view of a lens in an embodiment of the invention, after light is incident on the lens, forming a focal plane;
FIG. 5 is a schematic view of the geometric relationship of the light rays refracted by the ridge group according to an embodiment of the present invention;
fig. 6 is data related to lens placement in an embodiment of the invention.
Detailed Description
The conception and the resulting technical effects of the present invention will be described clearly and completely with reference to the following embodiments, so that the objects, features and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" on another feature, it can be directly disposed, fixed, or connected to the other feature or indirectly disposed, fixed, connected, or mounted on the other feature. In the description of the embodiments of the present invention, if "a plurality" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "more than", "less than" or "within" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.
Referring to fig. 1-5, an embodiment of the present invention provides a solar drying device, including a shelf 2 and a lens 1, wherein the shelf 2 is used for placing objects to be dried, the lens 1 is disposed above the shelf 2, the lens 1 includes a frame 9 and a plurality of ridge groups 13, the ridge groups 13 are used for refracting light rays incident into the lens 1 to form a focal plane, each ridge group 13 includes a plurality of micro ridges 11 with the same inclination angle, the micro ridges 11 on the lens 1 are symmetrically disposed on the frame 9 by using the shelf 2 as an axis, the arrangement equation of the ridge groups 13 is,
Rn＝X1+X2+X3…+Xn，
with the center of the lens 1 as the origin, RnIs the distance, X, from the end of the nth ridge group 13 to the originnIs the width of the N-th ridge group 13, N is the refractive index of the micro-ridges 11, f1Is the distance between the focal plane tip and the origin, f2Is the distance between the bottom of the focal plane and the origin, αnIs the included angle between the micro-arris 11 of the nth arris group 13 and the spectacle frame.
Specifically, in the use, will treat that the object of drying places on supporter 2, and solar ray jets into lens 1, and the stupefied group 13 on through lens 1 will jet into the solar ray refraction and assemble supporter 2's both sides to object on the opposite position supporter 2 carries out two-sided heating, makes its stoving, and this kind of drying device is higher owing to possess two-sided stoving's effect, its drying efficiency.
It should be noted that, since light is refracted and then generates dispersion, the farther the focal length is, the more serious the dispersion is for a general lens, so the lens width and focal length cannot be increased without limit, but the usage scenario of the surface focusing lens in this application is that a lens with a larger lens width and focal length can be used, on one hand, because the receiving area of the surface focusing lens is larger, which is different from the line focusing and point focusing, even if dispersion is generated, most of light is still in the target due to a large receiving range, on the other hand, in sunlight, the higher photothermal conversion efficiency is red light and near infrared band, and the red light and near infrared band are not easy to generate dispersion due to a longer wavelength, so the drying efficiency still maintains a higher level.
As shown in fig. 3, the general light-gathering section of the point focusing fresnel lens is schematically shown in fig. 3, the inclination angle α of the micro-ridges 11 increases gradually along the direction from the center to the periphery of the lens 1, but the increment of the inclination angle α is continuous, and the light of this structure is focused at a point after being refracted, and the lens section of the invention is schematically shown in fig. 4, along the direction from the center of the lens 1 to the periphery of the lens 1, the inclination angle of the micro-ridges 11 also increases gradually, but the increment of the inclination angle is discontinuous and stepped, that is, the inclination angle of the micro-ridges 11 in a certain range is the same, the set of all the micro-ridges 11 in this range is called a ridge group 13, each ridge group 13 refracts the light incident to the ridge group 13 to the range f, all the ridge groups 13 refract the light to the range f to form a vertical focal plane 12, wherein the shelf 2 is also vertically disposed, burnt face 12 covers supporter 2's both sides, and wherein supporter 2 is the grid structure, reduces light and blocks on the one hand, and the two sides that the washings can be realized to this kind of vertical design in the aspect of the other party evenly shines, and vertical placement space utilization is high moreover, and the water droplet drips easily, through light and heat conversion, can realize fast drying.
Referring to fig. 1 and 5, let the total width of the mirror surface be L, and let the distance between the upper and lower ends of the focal plane and the transmission mirror assembly 1 be f1、f2The light-condensing range is f2-f1The nth ridge group 13 has a width XnThe distance R from the end of the nth ridge group 13 to the center of the transmission mirror assembly 1n. As mentioned above, since the micro-ridges 11 in the same ridge group 13 have the same inclination angle, when incident light is refracted in parallel perpendicular to the mirror surface, there are AC parallel BD and AE parallel BG, crossing point C as perpendicular CH, intersecting BD at point H, crossing point E as perpendicular EF, intersecting BG at point F. Geometrically, there is a triangle ODB similar to triangle CDH and a triangle OGB similar to triangle EFG. Therefore, EG/EF equals OG/OB, and EG equals XnAnd AB-EF-f2-f1，OG＝Rn，OB＝f2Thus, therefore, it is
Rn＝X1+X2+X3…+Xn. Since the location of the focused heating of the heated vessel 2 in this application is known, i.e. f2, f1, and the diameter L of the transmission mirror assembly 1 is known. By iterative method, X can be respectively solved in turnn…X3、X2、X1And Rn-1…R3、R2、R1. When the position and range of each ridge group 13 are obtained, the inclination angle of the micro-ridge 11 in the ridge group 13 is required to be known, and the inclination angle of the micro-ridge 11 in the nth ridge group 13 is set as alphanThe inclination angles of the micro-ridges 11 in the same ridge group 13 are the same. The arrangement position R of ridge group 13 obtained from the above1、R2、R3...RnThe inclination angle can be calculated by using a basic design formula of the Fresnel transmission mirror:
where N is the refractive index of the material of the transmission mirror and R is usednThe distance from the origin to the end of the nth ridge group 13 has been determined for each ridge group 13 position, ridge group 13 length, and the inclination of micro-ridges 11 within ridge group 13.
Taking the total width of the transmission mirror assembly 1 as 2 meters and the length of the mirror as an example, the object to be dried is generally laundry, one surface of the laundry is set to receive twice light concentration ratio, and one piece of laundry is two light receiving surfaces, so that the light concentration area of the original 2mx4m is 0.5mx4m after being concentrated by the transmission mirror assembly 1. Where 0.5m is the vertical height of the focal plane, assuming that the lens 1 is made of PMMA, the refractive index N is 1.49, and f is set1＝1.5m，f2＝2m，Rn＝2(f2-f1) Substituting the data into formula (L/2 ═ 1 m)
Can find out Xn0.25m, further represented by formula Rn＝X1+X2+X3…+XnTo obtain Rn-1＝X1+X2+X3…+Xn-1＝Rn-XnRepeat the iteration to find all RnAnd XnAt the position R where the ridge group is obtainedn-1..R3、R2、R1Later on, carry over into the formula
Can find alphan…α3、α2、α1In this embodiment, the end result is shown in FIG. 6, with the edge-nearest ridge group X16Length of 0.25m, inclination angle alpha of all ridges in the group16Are 36.903 deg. and the other ridge groups 13 are the same. Since the closer to the center of the transmission mirror assembly 1, the smaller the inclination angle of the ridge group 13, to X1At a length of 0.003m, the angle of inclination α is already less than 1 °, and can be regarded as parallel in engineering terms, i.e. as not inclined, as planar high-transparency glass, so that a division into 16 rib groups is sufficient.
It should be noted that the prism group 13 is the sawtooth micro-prism combination of the fresnel lens, and the transmission mirror assembly 1 adopts the uniform condensation setting, so that the light receiving is uniform.
Because the light can produce the dispersion after refraction, the focus is the farther to general lens, the dispersion is more serious, consequently can not unlimited increase lens width and focus, but the use scene of this kind of face focus type lens in this patent can use great mirror surface width and focus, on the one hand because the face spotlight, the acceptance area is bigger, is different from line focus and point focus, even produce dispersion, because the acceptance range is big, most light still is in the target, on the other hand, in the sunlight, red light and near infrared band that photothermal conversion efficiency is higher, because the wavelength is longer, be difficult to produce dispersion, consequently drying efficiency still can be considerable.
In some embodiments, the solar drying device further comprises a lens support, the lens 1 is fixed on the lens support, and the object placing frame 2 is fixed below the lens 1 through the lens support and is located on a focal plane 12 formed after the lens 1 refracts.
Referring to fig. 1, in particular, the lens support includes first support rods 8 disposed at two sides of the lens frame, the lens 1 is fixed above the two first support rods 8, and the storage rack 2 is fixed between the two first support rods 8.
In some embodiments, the solar drying apparatus further comprises a support truss on which the lens support is mounted, the support truss supporting the lens support away from the ground.
Specifically, the support truss comprises an underframe 5 and second support rods 10 arranged at two ends of the underframe 5, and the second support rods 10 are connected with the first support rods 8.
In some embodiments, the support truss is movably connected to the lens holder, so that the orientation of the lens 1 can be adjusted at any time to allow the solar rays to be vertically irradiated onto the lens 1 at any time.
Specifically, the two first support bars 8 are hinged to the two second support bars 10, respectively.
In some embodiments, a first driving device is provided on the support truss for driving the lens support 8 to rotate to track the sun.
Referring to fig. 1, specifically, the first driving device includes a driving motor 6 and a turntable 7, the driving motor 6 is fixed on the second support rod 10, the turntable 7 is installed on the first support rod 8, the driving motor 6 is used for driving the turntable 7 to rotate, and the turntable 7 drives the lens support to rotate, so that the lens 1 rotates.
Referring to fig. 1, in some embodiments, the solar drying apparatus further includes a second driving device 4, where the second driving device 4 is configured to drive the supporting truss so that the supporting truss drives the whole apparatus to rotate, and in one aspect, is configured to assist the first driving device to realize that the lens 1 tracks the sun.
In other embodiments, the first driving device and the second driving device 4 are controlled by a single chip microcomputer, so that related programs can be programmed into the single chip microcomputer, and speed regulation can be performed according to different longitudes and latitudes and different dates and moments.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Claims (8)
1. A solar drying device, characterized by comprising:
the storage rack is used for placing objects to be dried;
lens, establish the supporter top, lens include picture frame and a plurality of stupefied group, stupefied group is used for inciting to the light refraction of lens forms the focal plane, each stupefied group is including a plurality of little stupefied that the inclination is the same, little stupefied on the lens use the supporter is the plane of symmetry, the symmetric arrangement is in on the picture frame, the arrangement equation of stupefied group does,
Rn＝X1+X2+X3…+Xn，
with the center of the lens as the origin, RnIs the distance from the end of the nth ridge group to the origin, XnIs the width of the N-th ridge group, N is the refractive index of the micro-ridges, f1Is the distance between the focal plane tip and the origin, f2Is the distance between the bottom of the focal plane and the origin, αnIs the included angle between the micro-arris of the nth arris group and the mirror frame.
2. The solar drying apparatus according to claim 1, wherein: solar drying device still includes the lens support, lens are installed lens support top, the supporter passes through the lens support mounting is in the lens below.
3. The solar drying apparatus according to claim 2, wherein: the solar drying device further comprises a supporting truss, and the lens support is mounted on the supporting truss.
4. The solar drying apparatus according to claim 3, wherein: the support truss is movably connected with the lens support.
5. The solar drying apparatus according to claim 3, wherein: and a first driving device is arranged on the supporting truss and used for driving the lens support to rotate so as to enable the lens to track the sun.
6. The solar drying apparatus of claim 5, wherein: the solar drying device further comprises a second driving device, and the second driving device is used for driving the supporting truss so that the supporting truss drives the whole device to rotate.
7. The solar drying apparatus of claim 6, wherein: the first driving device and the second driving device are controlled by a single chip microcomputer.
8. The solar drying apparatus according to claim 1, wherein: the supporter is the vertical grid structure who sets up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120143141.4U CN214406707U (en) | 2021-01-19 | 2021-01-19 | Solar drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120143141.4U CN214406707U (en) | 2021-01-19 | 2021-01-19 | Solar drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214406707U true CN214406707U (en) | 2021-10-15 |
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ID=78046400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120143141.4U Expired - Fee Related CN214406707U (en) | 2021-01-19 | 2021-01-19 | Solar drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214406707U (en) |
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2021
- 2021-01-19 CN CN202120143141.4U patent/CN214406707U/en not_active Expired - Fee Related
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