CN114766261A - Special heat insulation membrane net for maintaining activity of tea leaves by adopting nanotechnology - Google Patents
Special heat insulation membrane net for maintaining activity of tea leaves by adopting nanotechnology Download PDFInfo
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- CN114766261A CN114766261A CN202210486656.3A CN202210486656A CN114766261A CN 114766261 A CN114766261 A CN 114766261A CN 202210486656 A CN202210486656 A CN 202210486656A CN 114766261 A CN114766261 A CN 114766261A
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Abstract
The invention discloses a special heat insulation film net for maintaining activity of tea leaves by adopting a nanotechnology, belonging to the field of agricultural planting equipment. The membrane net comprises a plurality of net wires which are arranged in parallel; adjacent mesh filaments fit closely to form at least part of a mesh; the net wire comprises a plurality of arc-shaped pieces which are sleeved from inside to outside; the arc-shaped sheet positioned on the outermost layer is exposed in the air to be irradiated by sunlight, and the outer surface of the arc-shaped sheet is coated with a reflecting film with uniform thickness; the thicknesses of the reflecting films of different arc-shaped pieces are different; at least one tangential direction exists on the surfaces of all the reflecting films and is vertical to the sunlight irradiation direction; the reflecting films are made of materials which are relatively air and are dense media, the wavelength of infrared rays in the reflecting films is lambda, and the thickness of the reflecting films is 1/4 lambda; gaps which penetrate through the two sides of the screen wire are formed between the arc-shaped pieces of the single screen wire so as to enable air to flow; it can realize the stable cooling of the air temperature of the tea tree canopy face and the temperature of the leaves.
Description
Technical Field
The invention belongs to the field of agricultural planting equipment, and particularly relates to a special heat-insulating film net for maintaining activity of tea leaves by using a nanotechnology.
Background
The micro-area environment of the crown of the tea tree is lower than the growth of the tea leaves, so that great influence is caused; the improvement of the tea quality is facilitated by the low-temperature, high-humidity and low-light climatic environment; in addition, summer and autumn tea in the flat tea garden is not beneficial to the growth of the tea due to continuous high-temperature, low-humidity, dry-hot and bright-light environments.
In order to improve the quality of tea in summer and autumn, tea growers often cover a heat insulation net on the tea tree tent surface, and the heat insulation net can prevent the direct irradiation of hot and toxic sunlight on tea trees and prevent air and tea on the tea tree tent surface from being in a high-temperature environment; the sunlight isolated by the heat insulation net is mainly infrared light with longer wavelength, and the infrared light has heat effect, so the infrared isolation is most effective.
But the common heat insulation net is insulated in a mode of avoiding light penetration through physical insulation; the surface of part of the heat insulation net is coated with a reflecting film for reflecting infrared rays; the light has the wave property and can penetrate through the heat insulation net with a certain thickness, the surface of the heat insulation net is uneven after the heat insulation net is spread, the light irradiates the heat insulation net, the quantity of the light which can be reflected away is uncertain, half-wave loss can be generated only at the vertical irradiation angle, and the infrared rays are reflected away, so that the efficiency of reflecting the infrared rays is not high; the reflective film is expensive to manufacture, and this arrangement results in a low material utilization rate.
In addition, after the solar radiation in the morning, the heat insulation net absorbs certain heat to become a heating source; in the afternoon, the tea tree of the heat insulation net has a non-obvious cooling effect compared with the tea tree without the heat insulation net; at night, due to the fact that geothermal heat received by the tea trees covered with the heat insulation net is insufficient in the daytime, heat around the tea trees is not enough at night, and the problem of supercooling of the tea tree environment can be caused.
In addition, the bottoms of most heat insulation nets are flat, the heat of sunlight irradiation is high in daytime, the generation of water vapor in air is not facilitated, and the positive effect of improving the humidity of tea trees is not great.
Disclosure of Invention
The invention aims to provide a special heat insulation membrane net for keeping the activity of tea leaves by adopting a nanotechnology, which can realize the stable cooling of the air temperature and the leaf temperature at the tent surface of the tea tree.
The invention relates to a special heat insulation membrane net for maintaining the activity of tea leaves by adopting nanotechnology, which comprises a plurality of net wires arranged in parallel; adjacent mesh wires are brought into intimate contact to form at least part of a mesh; the net wire comprises a plurality of arc-shaped sheets which are sleeved from inside to outside; the arc-shaped sheet positioned on the outermost layer is exposed in the air to be irradiated by sunlight, and the outer surface of the arc-shaped sheet is coated with a reflecting film with uniform thickness; the thicknesses of the reflecting films of different arc-shaped pieces are different; at least one tangential direction on the surfaces of all the reflecting films is vertical to the sunlight irradiation direction; the reflecting films are all made of materials which are relatively air and are wave-dense media, the wavelength of infrared rays in the reflecting films is lambda, and the thickness of the reflecting films is 1/4 lambda; the arc-shaped pieces of the single mesh have gaps between them which penetrate both sides of the mesh to allow air flow.
As a further improvement of the present invention, the arc-shaped sheet includes a heat conductive film; the heat conducting film is a uniform film layer made of heat conducting metal; the heat-conducting film is directly or indirectly abutted against the reflecting film to exchange heat; the heat conductive film is in direct contact with the gap to exchange heat.
As a further improvement of the invention, the arc-shaped pieces are cylindrical surfaces of 1/2 and/or spherical surfaces of 1/2.
As a further improvement of the invention, the arc-shaped sheet comprises an elastic layer; the elastic layer is made of a material with the capability of deforming towards any direction; the elastic layer is a cylindrical surface in a normal state; the outer surface of the elastic layer is fixedly connected with the reflecting film; the thickness of the elastic layer at all positions of the reflecting film is unchanged in the deformed state.
As a further improvement of the invention, a plurality of arc-shaped pieces are movably connected with each other; in the movable range, the arc-shaped pieces positioned on the inner layer are always kept horizontal at the lower end face, and the axes of the arc-shaped pieces are all perpendicular to the sunlight irradiation direction, so that sunlight is always perpendicularly irradiated on the surfaces of the arc-shaped pieces positioned on the inner layer.
As a further improvement of the invention, the net wire comprises a plurality of wire tubes which are sheathed and distributed from inside to outside; the plurality of wire tubes comprise supporting sheets and arc-shaped sheets; the support sheet is arc-shaped and is fixedly connected with the arc-shaped sheet in an end-to-end ring manner to form a hollow inner cavity; the support sheet is made of rigid material; the wire tube positioned in the inner layer is embedded in the hollow inner cavity of the adjacent wire in the outer layer; the wire tubes distributed from the outside to the inside have the same structure and the sizes are reduced in equal proportion; the outer end surface of the support sheet of the wire tube positioned on the inner layer is in sliding butt joint with the inner end surface of the support sheet of the wire tube positioned on the outer layer; under the normal state, the support sheets of the wire tube are all coaxial, and the arc-shaped sheets of the wire tube are all coaxial.
As a further improvement of the invention, the membrane net further comprises a fixed edge, and the fixed edge is made of a tough material; the adjacent parallel net wires are fixedly connected, and the net wire positioned on the outermost side is fixedly connected with the fixed edge; the fixing edge and the gap have only partial coincidence or no coincidence.
As a further development of the invention, the film web further comprises a closed edge; the closed edge is detachably connected with the fixed edge; when the device is installed, the sealing edge is in sealing and abutting joint with the mesh wire so as to seal the gap; when the device is disassembled, the closed edge is separated from the net wire so as to open the gap.
As a further improvement of the invention, a plurality of net wires are interwoven into a net shape without gaps by a cross interweaving method; the arc-shaped pieces of the net wires in different directions between the two net wires in the same direction are at least partially spherical.
As a further development of the invention, there is at least partial opening of the corresponding internal gap where each wire is pressed by the anisotropic wire.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, a plurality of net wires are arranged in parallel, each net wire consists of a plurality of wire tubes sleeved from inside to outside, each wire tube is provided with an arc-shaped sheet, the upper surface of each arc-shaped sheet is coated with a reflecting film, and the thickness of each layer of reflecting film is different; each layer of reflective film is a film which can cause infrared rays to generate half-wave loss, and because the wavelength range of the infrared rays is longer, the multilayer reflective film is arranged to expand the range of the infrared rays which can generate half-wave loss; because the arc piece is 1/2's face of cylinder, the arc piece north-south orientation sets up, and the sun is the east to rise west and falls, and the sun is very far away from the earth, can regard sunlight as the parallel light, and when sunlight shines on the arc piece, be perpendicular to arc piece surface all the time, ensures that partial infrared ray in the sunlight can produce the half-wave loss, improves the arc piece to the reflection of part infrared ray in the sunlight, reduces the heating effect of sunlight to heat insulating net, tea tree.
The inner side of the arc-shaped sheet is coated with the heat-conducting film made of heat-conducting metal, and the heat-conducting film can absorb solar heat absorbed by the arc-shaped sheet as soon as possible; have the space between two inside and outside arc pieces, the space can ventilate, takes away the absorptive heat of thermal film, avoids subsidiary heat to produce indirect heat radiation to the crown.
The net wires are crosswise and staggered in transverse and longitudinal distribution and are woven into a net shape, so that the surface of the net wire in the positive direction between two net wires in different directions is pressed into a spherical shape, and a large number of spherical arc-shaped pieces are distributed on the surface of the net; the spherical shape can enable the sunlight emitted from different directions to vertically irradiate on the arc-shaped sheet, and the flexibility of placing the membrane net is improved compared with the placing position of the net wire.
The invention closes the two ends of the gap at night, so that air which absorbs heat in the day is sealed in the gap and becomes a heating source at night, heat is supplemented to the crown of the tea tree, and the temperature difference of the crown of the tea tree in the whole day cannot be too large.
The net film is made of a hollow net film, is light in weight, does not press leaf buds at the crown of a tree, and is beneficial to the growth of the leaf buds.
The support pieces are also arc-shaped, gullies between adjacent support pieces are favorable for retaining water vapor, and gaps in the net silk are ventilated, so that the temperature of the support pieces is favorably reduced, the temperature difference is formed between the support pieces and the air temperature at the tree crown, and the water vapor is favorably formed at the gullies.
Drawings
Fig. 1 is a schematic perspective view of a membrane network according to a first embodiment of the present invention;
fig. 2 is a schematic perspective view of a mesh according to a first embodiment of the present invention;
FIG. 3 is a schematic plan view of an outer tube according to a first embodiment of the present invention;
FIG. 4 is a schematic plan view of an arc-shaped piece according to a first embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a process of solar reflection according to a first embodiment of the present invention;
FIG. 6 is a schematic view of a first embodiment of a process for ventilation and heat dissipation;
FIG. 7 is a schematic diagram of a cross-directional and longitudinal mesh distribution according to a second embodiment of the present invention;
FIG. 8 is a schematic plan view of a pressed portion of a second embodiment of the present invention;
fig. 9 is a schematic perspective view of a third embodiment of the present invention when the gap is closed by the closed edge;
FIG. 10 is a graph showing the change in air humidity on the crown surface of a tea tree after application of different covering materials in accordance with the present invention;
FIG. 11 is a graph showing the change in light intensity on the crown surface of a tea tree after application of different covering materials in accordance with the present invention.
The numbering in the figures illustrates:
the net silk 1, the outer silk tube 11, the support sheet 111, the arc sheet 112, the reflection film 1121, the elastic layer 1122, the heat conduction film 1123, the middle silk tube 12, the inner silk tube 13, the fixed edge 2 and the closed edge 3.
Detailed Description
The first embodiment is as follows: please refer to fig. 1-6, which is a special heat insulation film net for maintaining the activity of tea leaves by nanotechnology, comprising a plurality of net wires 1 and fixed edges 2 arranged in parallel; the adjacent mesh wires 1 are tightly attached to form a mesh surface; the axis of the mesh 1 is always perpendicular to the sunlight irradiation direction, i.e. assuming the sun rises and falls, the mesh 1 in this embodiment is arranged in the north and south directions.
The net wire 1 comprises a plurality of wire tubes which are sheathed from inside to outside; in the embodiment, the wire tube is divided into an outer wire tube 11, a middle wire tube 12 and an inner wire tube 13; the outer wire tube 11, the middle wire tube 12 and the inner wire tube 13 are the same in structure, only have different sizes, are reduced in equal proportion, and are exposed in the air to be irradiated by sunlight. The filament tubes comprise supporting sheets 111 and arc-shaped sheets 112; the arc-shaped sheet 112 is a cylindrical surface of 1/2; the support sheet 111 is arc-shaped and is fixedly connected with the arc-shaped sheet 112 in an end-to-end ring manner to form a hollow inner cavity; the support sheet 111 is made of a rigid material, and the center of gravity of the filament tube is located at the center of the support sheet 111, so that the entire filament tube forms a tumbler-like structure. The wire tube at the inner layer is embedded in the hollow inner cavity of the adjacent wire at the outer layer. The outer end face of the support sheet 111 of the filament tube positioned on the inner layer is in sliding contact with the inner end face of the support sheet 111 of the filament tube positioned on the outer layer; under normal conditions, the support sheets 111 of the wire tube are coaxial, and the arc-shaped sheets 112 of the wire tube are coaxial; that is to say, when the outer filament tube 11 rotates, the middle filament tube 12 and the inner filament tube 12 still remain stationary, the design is mainly applied to the case that the net filament 1 corresponding to the outer filament tube 11 is located at the edge of the film net, the film net is not spread out horizontally, the film net has certain flexibility, the net filament 1 located at the edge portion of the film net is turned downward, at this time, the middle filament tube 12 and the inner filament tube 12 in the net filament 1 still remain stationary, that is, the lower end surface remains horizontal, it can be ensured that sunlight always enters vertically when irradiating on the surfaces of the middle filament tube 12 and the inner filament tube 12, the movable range refers to the range in which the inner filament tube can move in the outer filament tube, and the lower end surface of the inner filament tube in the movable range always remains horizontal. Gaps are reserved among the arc-shaped sheets 112 of the outer wire tube 11, the middle wire tube 12 and the inner wire tube 13, and the gaps penetrate through two sides of the mesh wire 1 to enable air to flow.
The arc-shaped sheet 112 includes a reflective film 1121, an elastic layer 1122, and a thermal conductive film 1123, which are sequentially disposed from the outside to the inside.
The elastic layer 1122 is made of a material having a capability of deforming in any direction; the elastic layer 1122 is normally in the form of a cylindrical surface of 1/2; the outer surface of the elastic layer 1122 is fixedly connected with the reflective film 1121; in the deformed state of the elastic layer 1122, the thickness of the reflective film 1121 is unchanged.
The outer surfaces of the arc-shaped pieces 112 are coated with reflection films 1121 with uniform thickness; the thicknesses of the reflective films 1121 of the different arc-shaped pieces 112 are different, and the thickness of the reflective film 1121 positioned on the inner side is lower than that of the reflective film 1121 positioned on the outer side; at least one tangential direction exists on the surfaces of all the reflecting films 1121, and the tangential direction is perpendicular to the sunlight irradiation direction; the reflection films 1121 are each made of a material that is a wave dense medium with respect to air, the wavelength of infrared rays in the reflection films 1121 is λ, and the thickness of the reflection films 1121 is λ of 1/4. The material of the reflective film 1121 is to allow infrared rays to generate half-wave interference, and the material is a conventional material (such as an infrared reflection increasing film of alumina single crystal), and in this embodiment, the material is nano-sized and then sprayed on the elastic layer 1122; because the reflection film 1121 with one thickness only corresponds to infrared light with one kind of wavelength, the reflection films 1121 with different thicknesses are arranged, so that the infrared light needs to pass through three layers of reflection films 1121 when irradiating the mesh 1, the reflectivity of the infrared light is improved, and the wavelength range of the reflected infrared light is expanded.
The heat conductive film 1123 is a uniform film layer made of a heat conductive metal; the heat-conducting film 1123 is fixedly sprayed on the inner surface of the elastic layer 11, and the heat-conducting film 1123 can absorb the heat of the reflecting film 1121 and the elastic layer 11; the heat conductive film 1123 is in direct contact with the gap to exchange heat, and when air is ventilated in the gap, the heat of the heat conductive film 1123 can be rapidly taken away.
The fixed edge 2 is made of a tough material; the adjacent parallel net wires 1 are fixedly connected, and the net wire 1 positioned at the outermost side is fixedly connected with the fixed edge 2; the fixed edge 2 and the gap have only partial coincidence or no coincidence; so that ventilation can be provided inwards through the gap.
The second concrete embodiment: on the basis of the first embodiment, please refer to fig. 7-8, which is a special heat-insulating film net for maintaining the activity of tea leaves by using nanotechnology, wherein a plurality of net wires 1 are interwoven into a net shape without gaps by a cross interweaving method; the arc-shaped sheets 112 of the net wires 1 in different directions between the two net wires 1 in the same direction are at least partially spherical, and the arc-shaped sheets 112 are partially 1/2 spherical, so that a plurality of spherical arc-shaped sheets 112 are distributed on the surface of the membrane net. The corresponding internal gap where each mesh 1 is pressed by the counter-mesh 1 is at least partially open, so that the gap is still continuously through. The spherical shape can enable the sunlight emitted from different directions to vertically irradiate on the arc-shaped sheet 112, and the arrangement position of the net wires 1 is not limited, so that the flexibility of the film net is improved.
The third concrete example: on the basis of the first or second embodiment, please refer to fig. 9, which is a special heat insulation film network for maintaining the activity of tea leaves by nanotechnology, wherein the film network further comprises a closed edge 3; the closed edge 3 is detachably connected with the fixed edge 2; when the device is installed, the closed edge 3 is in sealing contact with the mesh 1 to seal the gap; when detached, the closing edge 3 is separated from the mesh 1 to open the gap. When night, the both ends of closing clearance for including the thermal air of day of absorption seals in the clearance, become the source of generating heat at night, carry out the heat to tea tree crown department and supply, make tea tree crown department temperature difference in the whole day can not too big.
The fourth concrete embodiment: in one or two or three embodiments, the upper surface of the arc-shaped sheet 112 is white, and the lower surface of the support sheet 111 is black.
And (3) verification test:
test materials: common black sunshade net and nano heat insulation film net
Test site: shaoxing Yucha tea industry Co Ltd
Test time: at the end of spring tea (end of 4 months), summer tea (early 7 months) and autumn tea (middle of 8 months), the number of days of coverage for each trial was 10 days.
Testing the variety and area of tea trees: the test variety is Longjing 43#, the tree age is 14 years, and the area is 3 mu.
And (3) test treatment: the test adopts the split zone test of different sunshade nets and different shading time. Sunshade net includes: the test was conducted in spring, summer and autumn tea, respectively, at the end of 4 months, at the beginning of 7 months and in the middle of 8 months. Each treatment is repeated for four times, and the covering mode is that the tea tree canopy surface is directly covered by a single layer.
The test method comprises the following steps: measurement of covering on the tea tree canopy surface, the changes of the illumination intensity, the air temperature and the like of the tea tree canopy surface processed by different sunshade nets are respectively measured at 8:00, 10:00, 12:00, 14:00 and 16:00 in sunny days.
The detection means is as follows: measuring dynamic changes of parameters such as temperature changes of tea leaves subjected to various covering treatments by adopting a Li-6400 type photosynthesis measuring instrument; the picking standard is a one-bud four-leaf young shoot sample, the yield of each cell is respectively calculated, the yield of the tea leaves processed differently is analyzed in a statistical mode, and samples are collected.
Analysis and discussion of results:
after different shading materials are used for covering, the results of the table 1 show that after different shading materials are used for covering, the air temperature on the tree crown surface and the leaf temperature show similar rules: compared with the common black net, the heat insulation net has a better cooling effect, the air temperature and the blade temperature are both lower than those of the unshaded or covered common black net by about 2-5 degrees, and the difference is still kept unchanged after 14 pm.
Because the gaps among the net wires 1 of the heat insulation net are plugged after 18 hours, the hot air still radiates certain heat at night in the gaps, so that the temperature of the air on the crown surface of the tea tree covered by the heat insulation net is not greatly different from the temperature of uncovered treatment or black net covered treatment when the temperature of the blades is 8 days in the morning.
Along with the irradiation of sunlight, the air temperature and the blade temperature of each processed tree crown surface show the trend of increasing firstly and then decreasing, but the increase range of the air temperature and the blade temperature of the tree crown surface which is not covered with the heat insulation net is obviously higher than that of the tree crown surface and the blade which are covered with the heat insulation net, and the increase range of the temperature of the tree crown surface and the blade of the tea tree which are covered with the heat insulation net is minimum.
TABLE 1 difference between air temperature and leaf temperature of crown surface of tea tree after covering with different shading materials
The results in fig. 10 show that the air humidity in the morning of the crown of the tea tree covered by the insulation web is significantly higher than the normal black web covered and uncovered treatments, and this trend continues throughout the day. The results in fig. 11 show that the light intensity of the crown surface of the tea tree is 17-24% of that of the non-covering treatment after the common black net is covered by a single layer, and the light intensity of the crown surface of the tea tree is only 5.5-9% of that of the non-covering treatment after the heat insulation net is covered. Therefore, it is considered that the microclimate environment of the crown surface of the tea tree after the heat insulating net is covered is greatly changed from that of the ordinary black sunshade net and the non-covering treatment.
Claims (10)
1. A special heat insulation membrane net for keeping tea tree leaf activity by nanotechnology is characterized in that: comprises a plurality of net wires (1) which are arranged in parallel; adjacent mesh wires (1) are closely fitted to form at least part of a mesh; the net wire (1) comprises a plurality of arc-shaped sheets (112) which are sleeved from inside to outside; the arc-shaped sheet (112) positioned at the outermost layer is exposed in the air to be irradiated by sunlight, and the outer surface of the arc-shaped sheet (112) is coated with a reflecting film (1121) with uniform thickness; the thicknesses of the reflecting films (1121) of the different arc-shaped sheets (112) are different; at least one tangential direction is perpendicular to the sunlight irradiation direction on the surfaces of all the reflecting films (1121); the reflection films (1121) are all made of materials which are wave-dense media relative to air, the wavelength of infrared rays in the reflection films (1121) is lambda, and the thickness of the reflection films (1121) is 1/4 lambda; gaps which penetrate through the two sides of the net silk (1) are arranged between the arc-shaped sheets (112) of the single net silk (1) so as to enable air to flow.
2. The special heat insulation membrane net for maintaining the activity of the tea leaves by adopting the nanotechnology according to claim 1, wherein the special heat insulation membrane net is characterized in that: the arc-shaped sheet (112) comprises a heat-conducting film (1123); the heat-conducting film (1123) is a uniform film layer made of heat-conducting metal; the heat-conducting film (1123) is in direct or indirect abutment with the reflecting film (1121) to exchange heat; a heat conductive film (1123) is in direct contact with the gap to exchange heat.
3. The special heat insulation membrane net for maintaining the activity of the tea leaves through the nanotechnology according to claim 1, is characterized in that: the arc-shaped pieces (112) are cylindrical surfaces of 1/2 and/or spherical surfaces of 1/2.
4. The special heat insulation membrane net for maintaining the activity of the tea leaves by adopting the nanotechnology as claimed in claim 3, wherein: the arcuate tab (112) includes an elastic layer (1122); the elastic layer (1122) is made of a material having a capability of deforming in any direction; the elastic layer (1122) is in a cylindrical surface of 1/2 under a normal state; the outer surface of the elastic layer (1122) is fixedly connected with the reflecting film (1121); the thickness of the elastic layer (1122) is constant at each position of the reflection film (1121) in the deformed state.
5. The special heat insulation membrane net for maintaining the activity of the tea leaves through the nanotechnology according to claim 1, is characterized in that: the arc-shaped pieces (112) are movably connected with each other; in the movable range, the lower end surfaces of the arc-shaped sheets (112) positioned in the inner layer are always kept horizontal, and the axes of the arc-shaped sheets (112) are all perpendicular to the sunlight irradiation direction, so that sunlight is always perpendicularly irradiated on the surfaces of the arc-shaped sheets (112) positioned in the inner layer.
6. The special heat insulation membrane net for maintaining the activity of the tea leaves through the nanotechnology according to claim 5, wherein: the net wire (1) comprises a plurality of wire tubes which are sleeved from inside to outside; the plurality of filament tubes comprise supporting sheets (111) and arc-shaped sheets (112); the support sheet (111) is arc-shaped and is fixedly connected with the arc-shaped sheet (112) in an end-to-end ring manner to form a hollow inner cavity; the support sheet (111) is made of a rigid material; the wire tube positioned in the inner layer is embedded in the hollow inner cavity of the adjacent wire in the outer layer; the wire tubes distributed from the outside to the inside have the same structure and the sizes are reduced in equal proportion; the outer end surface of the support sheet (111) of the filament tube positioned at the inner layer is in sliding contact with the inner end surface of the support sheet (111) of the filament tube positioned at the outer layer; in a normal state, the support sheets (111) of the wire tube are coaxial, and the arc-shaped sheets (112) of the wire tube are coaxial.
7. The special heat insulation membrane net for maintaining the activity of the tea leaves by adopting the nanotechnology according to claim 1, wherein the special heat insulation membrane net is characterized in that: the membrane net also comprises a fixed edge (2), and the fixed edge (2) is made of a tough material; the adjacent parallel net wires (1) are fixedly connected, and the net wire (1) positioned at the outermost side is fixedly connected with the fixed edge (2); the fixing edge (2) and the gap have only partial coincidence or no coincidence.
8. The special heat insulation membrane net for maintaining the activity of the tea leaves by adopting the nanotechnology according to claim 7, wherein the special heat insulation membrane net is characterized in that: the membrane web further comprises a closed edge (3); the closed edge (3) is detachably connected with the fixed edge (2); when the device is installed, the sealing edge (3) is in sealing butt joint with the mesh (1) to seal the gap; when the device is disassembled, the closed edge (3) is separated from the mesh (1) to open the gap.
9. The special heat insulation membrane net for maintaining the activity of the tea leaves through the nanotechnology according to claim 4, is characterized in that: a plurality of net wires (1) are interwoven into a net shape without gaps by a cross-weaving method; the arc-shaped pieces (112) of the net wires (1) in different directions between the two net wires (1) in the same direction are at least partially spherical.
10. The special heat insulation membrane net for maintaining the activity of the tea leaves by adopting the nanotechnology according to claim 9, wherein: at least partial opening of the corresponding internal gap exists at the position where each mesh (1) is pressed by the different-direction mesh (1).
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| CN202210486656.3A CN114766261B (en) | 2022-05-06 | 2022-05-06 | Special heat insulation film net for keeping activity of tea leaves by nanotechnology |
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| CN202210486656.3A CN114766261B (en) | 2022-05-06 | 2022-05-06 | Special heat insulation film net for keeping activity of tea leaves by nanotechnology |
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Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108039A (en) * | 1993-11-18 | 1995-09-13 | 株式会社世久途化学 | Composite plastic film and greenhouse built therewith |
| JPH08111105A (en) * | 1994-10-11 | 1996-04-30 | Toshiba Glass Co Ltd | Multilayer film reflecting mirror |
| JP2002069107A (en) * | 2000-08-31 | 2002-03-08 | Sharp Corp | Selective reflection-film, liquid crystal display device using the same and method of producing the film |
| JP2006047532A (en) * | 2004-08-03 | 2006-02-16 | Fuji Photo Film Co Ltd | Optical film, manufacturing method therefor, antireflection film, polarizing plate and image display apparatus |
| JP3169867U (en) * | 2011-06-10 | 2011-08-18 | 穂高インテリア株式会社 | Awning device |
| JP2011182657A (en) * | 2010-03-04 | 2011-09-22 | Cosmobios:Kk | Plant cultivation greenhouse |
| JP2011239700A (en) * | 2010-05-14 | 2011-12-01 | Cosmobios:Kk | Plant cultivation house |
| CN103538336A (en) * | 2012-07-13 | 2014-01-29 | 三菱树脂株式会社 | Multiple-layer membrane for agriculture |
| CN104714700A (en) * | 2013-12-12 | 2015-06-17 | 欣兴电子股份有限公司 | Reflection structure for optical touch |
| AU2016269507B1 (en) * | 2016-05-10 | 2017-03-09 | Douglas Michael TRENCHARD | A solar reactive mulch film |
| CN209563268U (en) * | 2018-12-08 | 2019-11-01 | 河南省银丰塑料有限公司 | A kind of agricultural optical high molecular film |
| KR102051947B1 (en) * | 2018-10-29 | 2019-12-17 | 송사랑 | Weaving film and method for manufacturing of that |
| CN110650839A (en) * | 2017-06-27 | 2020-01-03 | 株式会社Lg化学 | Decorative member and method for producing same |
| CN111264259A (en) * | 2020-03-03 | 2020-06-12 | 贵州省烟草科学研究院 | Preparation method and structure of degradable mulching film |
| JP2020198807A (en) * | 2019-06-07 | 2020-12-17 | 小泉製麻株式会社 | Covering sheet for tea tree |
| CN112175479A (en) * | 2020-09-28 | 2021-01-05 | 厦门大学 | Preparation method of laser retro-reflection unmanned automobile coating |
| CN112715264A (en) * | 2020-12-30 | 2021-04-30 | 浙江省农业技术推广中心 | Planting method for increasing growth amount of tea |
-
2022
- 2022-05-06 CN CN202210486656.3A patent/CN114766261B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108039A (en) * | 1993-11-18 | 1995-09-13 | 株式会社世久途化学 | Composite plastic film and greenhouse built therewith |
| JPH08111105A (en) * | 1994-10-11 | 1996-04-30 | Toshiba Glass Co Ltd | Multilayer film reflecting mirror |
| JP2002069107A (en) * | 2000-08-31 | 2002-03-08 | Sharp Corp | Selective reflection-film, liquid crystal display device using the same and method of producing the film |
| JP2006047532A (en) * | 2004-08-03 | 2006-02-16 | Fuji Photo Film Co Ltd | Optical film, manufacturing method therefor, antireflection film, polarizing plate and image display apparatus |
| JP2011182657A (en) * | 2010-03-04 | 2011-09-22 | Cosmobios:Kk | Plant cultivation greenhouse |
| JP2011239700A (en) * | 2010-05-14 | 2011-12-01 | Cosmobios:Kk | Plant cultivation house |
| JP3169867U (en) * | 2011-06-10 | 2011-08-18 | 穂高インテリア株式会社 | Awning device |
| CN103538336A (en) * | 2012-07-13 | 2014-01-29 | 三菱树脂株式会社 | Multiple-layer membrane for agriculture |
| CN104714700A (en) * | 2013-12-12 | 2015-06-17 | 欣兴电子股份有限公司 | Reflection structure for optical touch |
| AU2016269507B1 (en) * | 2016-05-10 | 2017-03-09 | Douglas Michael TRENCHARD | A solar reactive mulch film |
| CN110650839A (en) * | 2017-06-27 | 2020-01-03 | 株式会社Lg化学 | Decorative member and method for producing same |
| KR102051947B1 (en) * | 2018-10-29 | 2019-12-17 | 송사랑 | Weaving film and method for manufacturing of that |
| CN209563268U (en) * | 2018-12-08 | 2019-11-01 | 河南省银丰塑料有限公司 | A kind of agricultural optical high molecular film |
| JP2020198807A (en) * | 2019-06-07 | 2020-12-17 | 小泉製麻株式会社 | Covering sheet for tea tree |
| CN111264259A (en) * | 2020-03-03 | 2020-06-12 | 贵州省烟草科学研究院 | Preparation method and structure of degradable mulching film |
| CN112175479A (en) * | 2020-09-28 | 2021-01-05 | 厦门大学 | Preparation method of laser retro-reflection unmanned automobile coating |
| CN112715264A (en) * | 2020-12-30 | 2021-04-30 | 浙江省农业技术推广中心 | Planting method for increasing growth amount of tea |
Non-Patent Citations (1)
| Title |
|---|
| 肖润林,王久荣,汤宇,刘永胜,彭晚霞,宋同清: "高温干旱季节遮阳网覆盖对茶园温湿度和茶树生理的影响", 生态学杂志 * |
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Denomination of invention: A specialized thermal insulation film network using nanotechnology to maintain the activity of tea tree leaves Granted publication date: 20230523 Pledgee: Wenling sub branch of Postal Savings Bank of China Ltd. Pledgor: ZHEJIANG TIANYUAN FABRIC Co.,Ltd. Registration number: Y2024980020853 |