阅读说明：本技术 一种农产品干燥用太阳能辅助干燥箱及干燥方法 (Solar auxiliary drying box for drying agricultural products and drying method ) 是由 吴永统 王旭鑫 葛玉莹 田小松 雷欣 罗赟 侯佳磊 陶文超 邓怀庆 刘麟 王文煊 于 2021-07-20 设计创作，主要内容包括：本发明公开了一种农产品干燥用太阳能辅助干燥箱及干燥方法,包括顶面开口的干燥箱体、顶部盖体、排湿控温组件、辅助干燥装置和供能组件,所述顶部盖体可启闭的连接于所述干燥箱体的顶面开口处,所述干燥箱体的右侧板上设置有可启闭的仓门,所述排湿控温组件的进气端和出气端均设置于所述干燥箱体的侧面上,所述辅助干燥装置设置于所述干燥箱体内腔侧壁上,所述辅助干燥装置与所述排湿控温组件均与所述供能组件电连接,通过太阳能供能和市电供能双重供能以保证干燥箱体在任何天气下均可对待干燥农产品进行高效干燥。本发明提供的农产品干燥用太阳能辅助干燥箱及干燥方法具有使得干燥箱能在所有天气状态下对待干燥农产品进行高效干燥的效果。(The invention discloses a solar auxiliary drying box for drying agricultural products and a drying method, and the solar auxiliary drying box comprises a drying box body with an opening on the top surface, a top cover body, a moisture-discharging temperature-controlling component, an auxiliary drying device and an energy supply component, wherein the top cover body can be connected to the opening on the top surface of the drying box body in an opening and closing manner, a bin door capable of being opened and closed is arranged on the right side plate of the drying box body, an air inlet end and an air outlet end of the moisture-discharging temperature-controlling component are both arranged on the side surface of the drying box body, the auxiliary drying device is arranged on the side wall of the inner cavity of the drying box body, the auxiliary drying device and the moisture-discharging temperature-controlling component are both electrically connected with the energy supply component, and the drying box body can be used for efficiently drying the agricultural products to be dried in any weather through dual energy supply of solar energy and commercial power. The solar auxiliary drying box and the drying method for drying the agricultural products, provided by the invention, have the effect that the drying box can efficiently dry the agricultural products to be dried in all weather states.)

1. The utility model provides an agricultural product is supplementary drying cabinet of solar energy for drying which characterized in that: including top surface open-ended drying box, top lid, hydrofuge accuse temperature subassembly, supplementary drying device and energy supply subassembly (9), the top lid can open and close connect in the top surface opening part of drying box, be provided with door (10) that can open and close on right side board (4) of drying box, the inlet end of hydrofuge accuse temperature subassembly with give vent to anger the end all set up in on the side of drying box, supplementary drying device set up in on the drying box inner chamber lateral wall, supplementary drying device with hydrofuge accuse temperature subassembly all with energy supply subassembly electricity is connected.

2. A solar-assisted drying box for drying agricultural products according to claim 1, characterized in that: the front side plate (1), the rear side plate (2), the left side plate (3) and the right side plate (4) of the drying box body respectively comprise an external fixing layer, a middle heat insulation layer and an internal heat absorption layer.

3. A solar-assisted drying box for drying agricultural products according to claim 1, characterized in that: the top lid includes transparent plate (5) and solid fixed ring (6), gu fixed ring (6) surround in transparent plate (5) periphery, gu the rear side edge of fixed ring (6) pass through the hinge with posterior lateral plate (2) are connected.

4. A solar-assisted drying box for drying agricultural products according to claim 3, characterized in that: the top lid still includes the water conservancy diversion strip, the water conservancy diversion strip set up in the front side edge of solid fixed ring (6), the height that highly is higher than of posterior lateral plate (2) preceding curb plate (1), work as transparent plate (5) lid fits when dry box top opening part, the laminating of water conservancy diversion strip preceding curb plate (1) top surface.

5. A solar-assisted drying box for drying agricultural products according to claim 4, characterized in that: the water conservancy diversion strip is including water conservancy diversion main part (7), embedded groove (15) and guiding gutter (16) have been seted up on water conservancy diversion main part (7), guiding gutter (16) set up to the state that high both ends are low in the middle, just two openings of guiding gutter (16) extend to respectively left side board (3) and right side board (4) outside, gu fixed ring (6) front side edge inserts in embedded groove (15), the two reciprocal anchorage works as water conservancy diversion main part (7) laminating preceding curb plate (1) top surface, just when there is the comdenstion water on transparent plate (5), the comdenstion water is along the slope under the action of gravity transparent plate (5) flow in guiding gutter (16), in order to follow guiding gutter (16) flow to dry box outside.

6. A solar-assisted drying box for drying agricultural products according to claim 5, characterized in that: still include humidity transducer, pressure sensor, temperature sensor and main control unit, humidity transducer, pressure sensor, temperature sensor and main control unit all with energy supply subassembly (9) electricity is connected, main control unit set up in on door (10) lateral wall, pressure sensor set up in drying cabinet inner chamber diapire, temperature sensor and humidity transducer set up in inside the drying cabinet, humidity transducer, pressure sensor and temperature sensor all with main control unit electricity is connected, main control unit still with the temperature control subassembly electricity of hydrofuge is connected.

7. The solar-assisted drying box for drying agricultural products of claim 6, wherein: the dehumidification temperature control assembly comprises an air inlet fan (12) and a dehumidification part (11), a first through hole is formed in the left side plate (3), the dehumidification part (11) is arranged at one end, close to an external space, of the first through hole, the air inlet fan (12) is arranged at one end, close to an inner cavity of the drying box body, of the first through hole, a second through hole is formed in the bin door (10), and a partition plate for preventing rainwater from entering is arranged at one end, close to the external space, of the second through hole;

the moisture-discharging temperature-controlling component also comprises an internal circulation fan (14), the central position of the bottom wall of the inner cavity of the drying box is set to be a circular concave shape, the internal circulation fan (14) is arranged at the central position of the circular concave shape, and when the internal circulation fan (14) is started, the air in the inner cavity of the drying box can form convection.

8. A solar assisted drying box for agricultural product drying according to any one of claims 4 to 7, characterized in that: left side board (3) and right side board (4) top position all are equipped with triangular phase change energy storage board (8), work as the water conservancy diversion strip laminating during preceding curb plate (1), gu fixed ring (6) left and right sides edge laminates two respectively phase change energy storage board (8).

9. A solar assisted drying box for agricultural product drying according to any one of claims 3 to 7, characterized in that: the auxiliary drying device comprises an ultrasonic generator, an ozone generator and an electric heating device, the electric heating device is arranged at the first channel, and the ultrasonic generator and the ozone generator are arranged inside the drying box body.

10. A method for drying agricultural products to be dried, characterized by: the drying process using the solar-assisted drying oven for agricultural product drying of claim 9, comprising the steps of:

s1, preheating, namely pushing the drying box body to a position with sufficient sunlight, closing the bin door and the opening at the top of the drying box body, starting the energy supply assembly to operate at the moment, and starting the internal circulation assembly (14);

s2, detecting the temperature of the inner cavity of the drying box in real time by the temperature sensor, enabling the temperature of the inner cavity of the drying box to reach 35 ℃ within half an hour through solar illumination, and starting the electric heating device to enable the temperature of the electric heating device to be between 35 ℃ and 40 ℃ when the temperature of the inner cavity of the drying box is lower than 35 ℃ within more than half an hour;

s3, placing the shelf containing the agricultural products to be dried into the drying box body, and meanwhile, collecting the initial gravity of the agricultural products to be dried by the pressure sensor and transmitting the initial gravity to the main controller;

s4, the energy supply assembly drives the dehumidifying and temperature-controlling assembly to operate, the temperature sensor detects the temperature of the inner cavity of the drying box in real time, when the temperature of the inner cavity is lower than 35 ℃, the main controller closes the dehumidifying and temperature-controlling assembly until the temperature of the inner cavity reaches 35 ℃, when the temperature of the inner cavity is higher than 40 ℃, the main controller improves the power of the dehumidifying and temperature-controlling assembly and reduces the power of the electric heating device so as to keep the temperature of the inner cavity between 35 ℃ and 40 ℃, the ultrasonic generator and the ozone generator are started simultaneously, the stage lasts for 3-4 hours, and the ultrasonic generator and the ozone generator are closed after the stage is completed;

s5, closing or reducing the power of the moisture-removing and temperature-controlling assembly, or adjusting the power of the electric heating device, so that the temperature of the inner cavity rises to 50 ℃ within half an hour, and when the temperature of the inner cavity of the drying box is lower than 50 ℃ over half an hour, starting or increasing the power of the electric heating device to enable the temperature to reach 50 ℃;

s6, when the temperature of the inner cavity reaches 50 ℃ or above, the phase change energy storage plate starts to absorb the heat in the drying box body;

s7, controlling the power of the dehumidifying and temperature controlling assembly through the main controller, or adjusting the power of the electric heating device to enable the temperature of the inner cavity to rise by 2 ℃ per hour, ensuring that the temperature of the inner cavity does not exceed 58 ℃, and continuing the stage for 3 hours;

s8, after the last stage is finished, reducing the power of the moisture-removing and temperature-controlling assembly, or adjusting the power of the electric heating device to enable the temperature of the inner cavity to rise to 60 ℃ within 20 minutes;

s9, controlling the power of the moisture-removing and temperature-controlling component or adjusting the power of an electric heating device through the main controller to enable the temperature of an inner cavity to be between 60 and 65 ℃, starting the ultrasonic generator and the ozone generator at the same time, and turning off the ultrasonic generator and the ozone generator until the pressure sensor detects that the gravity of the agricultural product to be dried is 15 percent of the initial weight;

s10, controlling the temperature of the inner cavity to be kept at 50-58 ℃, and controlling the wind speed of the moisture-discharging temperature-controlling component to be kept at 1m/S for 1 hour to finish drying.

Technical Field

The invention belongs to the technical field of agricultural product treatment, and particularly relates to a solar auxiliary drying box and a drying method for drying agricultural products.

Background

The agricultural products to be dried are not dried in time for 2-3 days after being picked and then become mildewed, most farmers rely on sunlight to dry the agricultural products to be dried, and the solution has the following problems: 1. the sun drying time is long, and the requirement of the stored moisture can be met only by continuously drying for 2-3 days in the sun; after being sunned for one day, the water is easy to regain moisture when being stored at night; if the sunshine is not strong enough, the days for drying in the sun can be prolonged; if the agricultural products to be dried need to be recovered in heavy rain, and if the agricultural products are not dried, the agricultural products are easy to mildew; 2. a large area of the field is occupied, and the influence of livestock and dust is also caused; 3. the drying is uneven, the sunlight changes greatly in one day, the agricultural products to be dried stacked on the lower layer are easy to dry, and the agricultural products to be dried need to be turned over manually. In order to solve the above problems, the existing solutions are to dry agricultural products to be dried through a drying oven for burning charcoal or coal, an electric drying oven or a heat pump drying oven, but the above drying ovens all have various problems, such as large pollution, high energy consumption and high cost, and in order to respond to the national call for energy conservation and emission reduction, the existing drying ovens are urgently to be improved.

Disclosure of Invention

In order to solve the problems, the solar auxiliary drying box and the drying method for drying the agricultural products are provided, and the aim is to enable the drying box to efficiently use solar energy to dry the agricultural products to be dried.

The specific technical scheme is as follows:

the utility model provides an agricultural product is dry with supplementary drying cabinet of solar energy, includes top surface open-ended drying box, top lid, hydrofuge accuse temperature subassembly, supplementary drying device and energy supply subassembly, the top lid can open and close connect in the top surface opening part of drying box, be provided with the door that can open and close on the right side board of drying box, the inlet end of hydrofuge accuse temperature subassembly with give vent to anger the end all set up in on the side of drying box, supplementary drying device set up in on the drying box inner chamber lateral wall, supplementary drying device with hydrofuge accuse temperature subassembly all with energy supply subassembly electricity is connected.

The solar auxiliary drying box for drying the agricultural products further has the characteristic that the front side plate, the rear side plate, the left side plate and the right side plate of the drying box body respectively comprise an external fixing layer, a middle heat insulation layer and an internal heat absorption layer.

The beneficial effect of above-mentioned scheme: so that the internal heat of the drying box body is kept in the drying box body as much as possible in the using process.

The solar auxiliary drying box for drying the agricultural products is further characterized in that the top cover body comprises a transparent plate and a fixing ring, the fixing ring surrounds the periphery of the transparent plate, and the rear side edge of the fixing ring is connected with the rear side plate through a hinge.

The beneficial effect of above-mentioned scheme: when the transparent plate is covered on the opening at the top of the drying box body, the sunlight can be supplied.

Foretell agricultural product is dry with supplementary drying cabinet of solar energy still has such characteristic, the top lid still includes the water conservancy diversion strip, the water conservancy diversion strip set up in gu fixed ring's front side edge, the height that highly is higher than of posterior lateral plate, when the transparent plate lid fits when drying box open-top department, the laminating of water conservancy diversion strip anterior lateral plate top surface.

The beneficial effect of above-mentioned scheme: when the transparent plate covers the opening at the top of the drying box body, the transparent plate is in an inclined state, when high-temperature humid air contacts the transparent plate, a large amount of condensed water is condensed on the transparent plate, and the condensed water can flow to the diversion strips along the transparent plate.

Foretell agricultural product is dry with supplementary drying cabinet of solar energy still has such characteristic, water conservancy diversion strip includes the water conservancy diversion main part, embedded groove and guiding gutter have been seted up in the water conservancy diversion main part, the guiding gutter sets up to the state that high both ends are low in the middle, just two openings of guiding gutter extend to respectively the left side board and the right side board outside, gu fixed ring front side edge inserts in the embedded groove, the two reciprocal anchorage works as the laminating of water conservancy diversion main part preceding curb plate top surface, just when there is the comdenstion water on the transparent plate, the comdenstion water flows into along the slope under the action of gravity the transparent plate in the guiding gutter, with the edge the guiding gutter flow direction drying box is outside.

The beneficial effect of above-mentioned scheme: the guiding gutter sets up to middle height, and both ends opening part is low, and behind the guiding gutter was flowed to the condensate water, the condensate water can be followed the guiding gutter notch and flowed to the drying cabinet outside.

Foretell agricultural product is dry with supplementary drying cabinet of solar energy still has such characteristic, still includes humidity transducer, pressure sensor, temperature sensor and main control unit, humidity transducer, pressure sensor, temperature sensor and main control unit all with energy supply subassembly electricity is connected, main control unit set up in on the door lateral wall, pressure sensor set up in drying cabinet inner chamber diapire, temperature sensor and humidity transducer set up in inside the drying cabinet, humidity transducer, pressure sensor and temperature sensor all with main control unit electricity is connected, main control unit still with hydrofuge temperature control component electricity is connected.

The beneficial effect of above-mentioned scheme: pressure sensor is used for detecting the agricultural product weight of treating drying to the dry condition of dry agricultural product is treated in the judgement, and humidity transducer and temperature sensor are used for the humiture of monitoring dry box, and with signal transmission to main control unit, adjust the humiture of the power of hydrofuge accuse temperature subassembly in order to control dry box inner chamber through main control unit.

The solar auxiliary drying box for drying the agricultural products is also characterized in that the dehumidifying and temperature-controlling assembly comprises an air inlet fan and a dehumidifying part, a first through hole is formed in the left side plate, the dehumidifying part is arranged at one end, close to the external space, of the first through hole, the air inlet fan is arranged at one end, close to the inner cavity of the drying box body, of the first through hole, a second through hole is formed in the bin door, and a partition plate for preventing rainwater from entering is arranged at one end, close to the external space, of the second through hole;

the dehumidification accuse temperature subassembly still includes the internal circulation fan, drying cabinet inner chamber diapire central position is established to circular sunken form, the internal circulation fan set up in circular sunken central authorities work as when the internal circulation fan starts, can make the air of drying cabinet inner chamber forms the convection current.

The beneficial effect of above-mentioned scheme: the temperature and humidity in the inner cavity of the drying box body are adjusted by adjusting the operating power of the air inlet fan, and the humidity of air input by the air inlet fan can be reduced as far as possible by the dehumidification part.

Foretell agricultural product is dry with supplementary drying cabinet of solar energy still has such characteristic, left side board and right side board top position all are equipped with triangular phase change energy storage board, work as the laminating of water conservancy diversion strip during the preceding curb plate, gu fixed ring left and right sides edge laminates two respectively the phase change energy storage board.

The beneficial effect of above-mentioned scheme: when sunshine is sufficient, the phase change energy storage plate stores energy, and when sunshine is insufficient, the phase change energy storage plate outputs heat energy to the inner cavity of the drying box body so as to ensure the drying efficiency.

The solar auxiliary drying box for drying the agricultural products is further characterized in that the auxiliary drying device comprises an ultrasonic generator, an ozone generator and an electric heating device, the electric heating device is arranged at the first channel, and the ultrasonic generator and the ozone generator are arranged inside the drying box body.

The beneficial effect of above-mentioned scheme: ultrasonic generator sends the ultrasonic wave so that vibration energy transmission to treat inside the agricultural product of drying, forms the micro-jet on treating dry agricultural product surface, treats that the inside micro-liquid vacuole that forms of dry agricultural product promotes deep moisture to the surface migration, and surface moisture forms the micro-jet and breaks away from and is taken away by the air current to treat dry agricultural product, in order to reach the purpose that promotes the dehydration and accelerate.

The invention also provides a method for drying agricultural products to be dried by using the solar auxiliary drying box for drying the agricultural products, which comprises the following steps:

s1, preheating, namely pushing the drying box body to a position with sufficient sunlight, closing the bin door and the opening at the top of the drying box body, starting the energy supply assembly to operate at the moment, and starting the internal circulation assembly at the same time;

s2, detecting the temperature of the inner cavity of the drying box in real time by the temperature sensor, enabling the temperature of the inner cavity of the drying box to reach 35 ℃ within half an hour through solar illumination, and starting the electric heating device to enable the temperature of the electric heating device to be between 35 ℃ and 40 ℃ when the temperature of the inner cavity of the drying box is lower than 35 ℃ within more than half an hour;

s3, placing the shelf containing the agricultural products to be dried into the drying box body, and meanwhile, collecting the initial gravity of the agricultural products to be dried by the pressure sensor and transmitting the initial gravity to the main controller;

s4, the energy supply assembly drives the dehumidifying and temperature-controlling assembly to operate, the temperature sensor detects the temperature of the inner cavity of the drying box in real time, when the temperature of the inner cavity is lower than 35 ℃, the main controller closes the dehumidifying and temperature-controlling assembly until the temperature of the inner cavity reaches 35 ℃, when the temperature of the inner cavity is higher than 40 ℃, the main controller improves the power of the dehumidifying and temperature-controlling assembly and reduces the power of the electric heating device so as to keep the temperature of the inner cavity between 35 ℃ and 40 ℃, the ultrasonic generator and the ozone generator are started simultaneously, the stage lasts for 3-4 hours, and the ultrasonic generator and the ozone generator are closed after the stage is completed;

s5, closing or reducing the power of the moisture-removing and temperature-controlling assembly, or adjusting the power of the electric heating device, so that the temperature of the inner cavity rises to 50 ℃ within half an hour, and when the temperature of the inner cavity of the drying box is lower than 50 ℃ over half an hour, starting or increasing the power of the electric heating device to enable the temperature to reach 50 ℃;

s6, when the temperature of the inner cavity reaches 50 ℃ or above, the phase change energy storage plate starts to absorb the heat in the drying box body;

s7, controlling the power of the dehumidifying and temperature controlling assembly through the main controller, or adjusting the power of the electric heating device to enable the temperature of the inner cavity to rise by 2 ℃ per hour, ensuring that the temperature of the inner cavity does not exceed 58 ℃, and continuing the stage for 3 hours;

s8, after the last stage is finished, reducing the power of the moisture-removing and temperature-controlling assembly, or adjusting the power of the electric heating device to enable the temperature of the inner cavity to rise to 60 ℃ within 20 minutes;

s9, controlling the power of the moisture-removing and temperature-controlling component or adjusting the power of an electric heating device through the main controller to enable the temperature of an inner cavity to be between 60 and 65 ℃, starting the ultrasonic generator and the ozone generator at the same time, and turning off the ultrasonic generator and the ozone generator until the pressure sensor detects that the gravity of the agricultural product to be dried is 15 percent of the initial weight;

s10, controlling the temperature of the inner cavity to be kept at 50-58 ℃, and controlling the wind speed of the moisture-discharging temperature-controlling component to be kept at 1m/S for 1 hour to finish drying.

In conclusion, the scheme has the beneficial effects that:

according to the solar auxiliary drying box for drying the agricultural products and the drying method, the temperature of the inner cavity of the drying box body is increased through solar energy, and the drying box body can be used for efficiently drying the agricultural products to be dried in any weather through solar energy supply and commercial power supply dual energy supply. The solar auxiliary drying box and the drying method for drying the agricultural products, provided by the invention, have the effect that the drying box can efficiently dry the agricultural products to be dried in all weather states.

Drawings

Fig. 1 is a schematic perspective view of a solar auxiliary drying box for drying agricultural products according to the present invention;

FIG. 2 is a left side view schematically illustrating the structure of the solar auxiliary drying box for drying agricultural products according to the present invention;

FIG. 3 is a schematic diagram of the structure of the solar auxiliary drying box for drying agricultural products according to the present invention;

FIG. 4 is another perspective view of the solar-assisted drying box for agricultural product drying according to the present invention;

fig. 5 is a schematic perspective view of a deflector body of the solar auxiliary drying box for drying agricultural products according to the present invention;

fig. 6 is a front cross-sectional view of the flow guiding body of the solar auxiliary drying box for drying agricultural products according to the present invention.

Description of the drawings: 1. a front side plate; 2. a rear side plate; 3. a left side plate; 4. a right side plate; 5. a transparent plate; 6. a fixing ring; 7. a flow guide main body; 8. a phase change energy storage plate; 9. an energy supply assembly; 10. a bin gate; 11. a dehumidification section; 12. an air intake fan; 13. an air outlet fan; 14. an internal circulation assembly; 15. a groove is embedded; 16. and a diversion trench.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.

Fig. 1 is a schematic perspective view of a solar auxiliary drying box for drying agricultural products according to the present invention, fig. 2 is a schematic left-view structural view of the solar auxiliary drying box for drying agricultural products according to the present invention, fig. 3 is a schematic right-view structural view of the solar auxiliary drying box for drying agricultural products according to the present invention, fig. 4 is a schematic another perspective structural view of the solar auxiliary drying box for drying agricultural products according to the present invention, fig. 5 is a schematic perspective structural view of a flow guide body of the solar auxiliary drying box for drying agricultural products according to the present invention, fig. 6 is a schematic front-sectional structural view of the flow guide body of the solar auxiliary drying box for drying agricultural products according to the present invention, and as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6, the solar auxiliary drying box for drying agricultural products according to the present embodiment is provided: including top surface open-ended drying box, the top lid, hydrofuge accuse temperature subassembly, supplementary drying device and energy supply subassembly 9, what the top lid can open and close connects in the top surface opening part of drying box, be provided with the bin gate 10 that can open and close on the right side board 4 of drying box, the inlet end of hydrofuge accuse temperature subassembly all sets up on the side of drying box with the end of giving vent to anger, supplementary drying device sets up on drying box inner chamber lateral wall, supplementary drying device all is connected with the energy supply subassembly electricity with hydrofuge accuse temperature subassembly.

It should be noted that the energy supply assembly 9 includes a solar energy supply circuit and a mains supply circuit, the solar energy supply circuit is disposed on the outer side wall of the drying box body, when the external sunlight is sufficient, the solar energy supply circuit supplies energy for the humidity-discharging temperature-controlling assembly, the mains supply circuit supplies energy for the auxiliary drying device, and when the external sunlight is insufficient, the mains supply circuit supplies power for the whole drying box.

It should be further noted that, because the hot air density is low at the upper part of the drying box body and the cold air density is high at the lower part of the drying box body, when the internal circulation fan operates, the hot air at the upper part of the drying box body is sucked downwards and is discharged to the periphery of the lower part of the drying box body after passing through the internal circulation fan, so that convection is formed in the inner cavity of the drying box body.

In the above embodiment, the front plate 1, the rear plate 2, the left plate 3 and the right plate 4 of the drying cabinet all include an external fixing layer, a middle insulating layer and an internal heat absorbing layer.

The outer fixing layer is a galvanized steel plate, the middle heat insulation layer is a polyester heat insulation plate, and the inner heat absorption layer is a black porous heat absorption plate.

In the above embodiment, the top cover includes the transparent plate 5 and the fixing ring 6, the fixing ring 6 surrounds the periphery of the transparent plate 5, and the rear side edge of the fixing ring 6 is connected to the rear side plate 2 by a hinge.

It should be noted that the transparent plate 5 is made of low-texture toughened glass, so that sunlight can be irradiated into the drying box body, and the sunlight can be prevented from being reflected out of the drying box body.

In the above embodiment, the top cover further includes the flow guide strip, the flow guide strip is disposed on the front side edge of the fixing ring 6, the height of the rear side plate 2 is higher than that of the front side plate 1, and when the transparent plate 5 covers the top opening of the drying box, the flow guide strip is attached to the top surface of the front side plate 1.

In the above-mentioned embodiment, the water conservancy diversion strip includes water conservancy diversion main part 7, embedded groove 15 and guiding gutter 16 have been seted up on the water conservancy diversion main part 7, guiding gutter 16 sets up to the state that high both ends are low in the middle of, and two openings of guiding gutter 16 extend to the left side board 3 and the 4 outsides of right side board respectively, gu fixed ring 6 front side reason inserts in embedded groove 15, the two reciprocal anchorage, 1 top surface of curb plate before the laminating of water conservancy diversion main part 7, and when having the comdenstion water on the transparent plate 5, the comdenstion water flows into guiding gutter 16 along the transparent plate 5 of slope under the action of gravity, with it is outside to flow to dry box along guiding gutter 16.

In the above embodiment, still include humidity transducer, pressure sensor, temperature sensor and main control unit, humidity transducer, pressure sensor, temperature sensor and main control unit all are connected with 9 electricity of energy supply subassembly, main control unit sets up on 10 lateral walls of door, pressure sensor sets up in drying cabinet inner chamber diapire, temperature sensor and humidity transducer set up inside the drying cabinet, humidity transducer, pressure sensor and temperature sensor all are connected with main control unit electricity, main control unit still is connected with hydrofuge accuse temperature subassembly electricity.

In the above embodiment, the dehumidifying and temperature controlling assembly includes the air inlet fan 12 and the dehumidifying part 11, the left side plate 3 is provided with a first through hole, the dehumidifying part 11 is disposed at one end of the first through hole close to the external space, the air inlet fan 12 is disposed at one end of the first through hole close to the inner cavity of the drying box, the door 10 is provided with a second through hole, and one end of the second through hole close to the external space is provided with a partition board for preventing rainwater from entering;

the moisture-discharging temperature-controlling assembly further comprises an internal circulation fan 14, the central position of the bottom wall of the inner cavity of the drying box body is set to be in a circular concave shape, the internal circulation fan 14 is arranged in the center of the circular concave shape, and when the internal circulation fan 14 is started, air in the inner cavity of the drying box body can form convection.

It should be noted that the electric heating device is a PTC heating device, the PTC heating device is arranged at the air outlet end of the air inlet fan 12, the PCT heating device is powered by an external power supply, when sunlight is insufficient and the temperature in the drying box cannot be guaranteed, the PTC heating device is started, heat is input into the drying box through the air inlet fan 12 to guarantee the drying efficiency, an air outlet fan 13 is further arranged, and the air outlet fan 13 is arranged at one end of the second through hole close to the inner cavity of the drying box.

It should be further noted that, after the internal circulation fan 14 is started, the air at the bottom of the inner cavity of the drying box can be pushed upwards, and the air at the upper part of the inner cavity of the drying box is extruded to move downwards, so that the air in the inner cavity of the drying box forms convection.

The dehumidifying part 11 is made of a solid moisture absorbent such as silica gel or calcium chloride.

In the above embodiment, the top positions of the left side plate 3 and the right side plate 4 are both provided with the triangular phase change energy storage plates 8, and when the diversion strip is attached to the front side plate 1, the edges of the left side and the right side of the fixing ring 6 are respectively attached to the two phase change energy storage plates 8.

It should be noted that, when the temperature of the inner cavity of the drying box reaches 50 ℃ or above, the phase change energy storage plate 8 starts to absorb part of the heat in the drying box for storing energy, and when the temperature of the inner cavity of the drying box is lower than 50 ℃, the phase change energy storage plate 8 starts to release heat energy to supplement the heat in the inner cavity of the drying box.

In the above embodiment, the auxiliary drying device includes an ultrasonic generator, an ozone generator, and an electric heating device, the electric heating device is disposed at the first channel, and the ultrasonic generator and the ozone generator are disposed inside the drying box.

It should be noted that the auxiliary drying device includes an ultraviolet LED lamp for sterilization.

It should be further noted that the ultraviolet light LED lamps, the ultrasonic generator and the ozone generator are all arranged on the shelf, the ultraviolet light LED lamps are arranged on each layer of the shelf, the ultraviolet light LED lamps arranged on each layer can respectively perform ultraviolet light irradiation disinfection on the object to be dried on each layer, the ozone generator is arranged on the side wall of the drying box body, the ultrasonic generator is arranged on the shelf to be dried, and when the ultrasonic generator is fixed on the shelf and started, ultrasonic vibration is directly transmitted to the agricultural products to be dried, so that the drying efficiency is improved.

Another embodiment provides a method for drying agricultural products to be dried using solar energy, comprising the steps of:

s1, preheating, namely pushing the drying box body to a position with sufficient sunlight, closing the bin door and the opening at the top of the drying box body, starting the energy supply assembly to operate at the moment, and starting the internal circulation assembly 14 at the same time;

s2, detecting the temperature of the inner cavity of the drying box in real time by a temperature sensor, enabling the temperature of the inner cavity of the drying box to reach 35 ℃ within half an hour through solar illumination, and starting an electric heating device to enable the temperature of the inner cavity of the drying box to be between 35 ℃ and 40 ℃ when the temperature of the inner cavity of the drying box is lower than 35 ℃ for more than half an hour;

s3, placing the shelf containing the agricultural products to be dried into the drying box body, and meanwhile, collecting the initial gravity of the agricultural products to be dried by the pressure sensor and transmitting the initial gravity to the main controller;

s4, driving the dehumidifying and temperature-controlling component to operate by the energy supply component, detecting the temperature of the inner cavity of the drying box in real time by the temperature sensor, when the temperature of the inner cavity is lower than 35 ℃, closing the dehumidifying and temperature-controlling component by the main controller until the temperature of the inner cavity reaches 35 ℃, when the temperature of the inner cavity is higher than 40 ℃, improving the power of the dehumidifying and temperature-controlling component by the main controller, reducing the power of the electric heating device to keep the temperature of the inner cavity between 35 ℃ and 40 ℃, simultaneously starting the ultrasonic generator and the ozone generator, continuing the stage for 3-4 hours, and closing the ultrasonic generator and the ozone generator after the stage is finished;

s5, closing or reducing the power of the moisture-removing temperature-control assembly, or adjusting the power of the electric heating device, so that the temperature of the inner cavity rises to 50 ℃ within half an hour, and when the temperature of the inner cavity of the drying box is lower than 50 ℃ within more than half an hour, starting or increasing the power of the electric heating device to enable the temperature to reach 50 ℃;

s6, when the temperature of the inner cavity reaches 50 ℃ or above, the phase change energy storage plate starts to absorb the heat inside the drying box body;

s7, controlling the power of the moisture-removing and temperature-controlling component through the main controller, or adjusting the power of the electric heating device to enable the temperature of the inner cavity to rise by 2 ℃ per hour, ensuring that the temperature of the inner cavity does not exceed 58 ℃, and continuing the stage for 3 hours;

s8, after the last stage is finished, reducing the power of the moisture-removing and temperature-controlling assembly, or adjusting the power of the electric heating device, so that the temperature of the inner cavity is raised to 60 ℃ within 20 minutes;

s9, controlling the power of the moisture-removing temperature-control assembly or adjusting the power of the electric heating device through the main controller to enable the temperature of the inner cavity to be between 60 and 65 ℃, simultaneously starting the ultrasonic generator and the ozone generator, and stopping the ultrasonic generator and the ozone generator until the pressure sensor detects that the gravity of the agricultural products to be dried is 15 percent of the initial weight;

s10, controlling the temperature of the inner cavity to be kept at 50-58 ℃ and keeping for 1 hour to finish drying.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.