144 results about "SUN LIGHT EXPOSURE" patented technology

To provide a power supply system that minimizes capital investment.SOLUTION: A power supply system includes a solar power generation device 13 that generates power when irradiated with sunlight, a fuel cell 14 that generates power when supplied with fuel, a secondary battery 15 that can be charged and discharged, and a control unit 16 that controls the solar power generation device 13, the fuel cell 14, and the secondary battery 15. The control unit 16 obtains a power demand forecast of the power that is to be required from the power demand 11 and a solar power generation forecast of the power that is to be generated by the solar power generation device 13, and formulates an operation plan for operating the fuel cell 14, the solar power generation device 13, and the secondary battery 15 in response to the power demand 11 on the basis of the power demand forecast and the solar power generation forecast, and controls the operation of the fuel cell 14 to follow the power demand load of the power demand 11 based on the operation plan.SELECTED DRAWING: Figure 2

A Surface-affixed, Storm-Resistant Containment Unit involves a shelter structure, with internally-mounted photovoltaic solar panels, and movable doors which may be ‘closed’ to protect the photovoltaic solar panels from storm-related damage, e.g. hail, extreme wind and airborne debris. When weather conditions improve, the movable doors may be ‘opened’, allowing sunlight to strike the undamaged photovoltaic solar panels, and renewable energy production to resume. These Storm-Resistant Containment Units may be installed, and electrically connected in multiples to comprise a storm-resistant, commercially-sized, renewable power generating station (or ‘Micro-Grid’) for use in geographic areas prone to severe storms and hurricanes. Such storm-resistant, commercially-sized, power generation station may be advantageously applied at existing ‘Brown-Field’ industrial sites that have existing, unused electrical-grid infrastructure.

The utility model discloses a high-efficiency photovoltaic illumination reflection device, which comprises a photovoltaic panel and a mounting rack, and further comprises a tracking support, a first motor, a rotating support, a driving assembly, a reflection plate assembly and an illumination sensor, the photovoltaic panel is connected to the mounting rack, the first motor is located at one end of the mounting rack and arranged inside the mounting rack, and the rotating support is arranged on the first motor. The tracking support is connected to the lower portion of the mounting frame, the rotating support is hinged to the upper portion of the mounting frame, the first motor is connected with the rotating support, the driving assembly is connected to the interior of the rotating support and arranged on one side of the rotating support, and the reflecting plate assembly is arranged above the photovoltaic panel and connected with the driving assembly. The illumination sensor is arranged at the top end of the reflecting plate assembly and connected with the first motor, the driving assembly and the reflecting plate assembly, and when the photovoltaic panels are irradiated by sunlight, the illumination sensor can automatically change the angle between the reflecting plates and the photovoltaic panels according to the intensity of illumination reflected by the photovoltaic panels so as to improve the working efficiency of the reflecting plates.

The utility model belongs to the field of sun-drying equipment, and particularly relates to totally-enclosed conveyor sun-drying equipment which comprises a steel frame detachably arranged on the ground, sealing plates arranged on the periphery of the steel frame and a top plate used for sealing the top faces of the four sealing plates, and the sealing plates, the top plate and the ground form a drying chamber. A conveying device used for containing materials is arranged in the drying chamber. And an exhaust fan communicated with the drying chamber is arranged on the sealing plate. The multiple conveying devices are vertically distributed on the ground at intervals, and the ends of the adjacent conveying devices are arranged in a staggered mode. The sealing plates are arranged on the periphery of the steel frame, the top plate is arranged on the sealing plates on the periphery of the steel frame, the drying chamber is formed between the sealing plates and the top plate, sunlight irradiates in the drying chamber, the internal temperature of the drying chamber rises, and therefore the drying efficiency of coal slime in the drying chamber can be improved. And the coal slime is dried in the totally-enclosed drying chamber, so that the coal slime can be prevented from being blown away by wind, and the environment is protected from being polluted.

To provide a protective cover capable of preventing wetting or staining, damage from pests / of harmful animals, and a degradation due to sunlight of a driver seat and peripheral devices thereof, exhibiting high drainage and dust dischargeability, and easily fitted / removed but difficult to fall off from a device to be fitted, and a method for fitting the same.SOLUTION: A protective cover A is formed of a continuous fabric body A0, and comprises: a three-dimensional cover 2 that can cover an upper part of a device to be fitted; and a side cover 3 provided to be connected to the three-dimensional cover 2 and open at the lower part. The lower edge part of the side cover 3 is an opening edge part 1. The protective cover A is formed so as to be able to envelop and cover an upper part of an operator part M2 by the three-dimensional cover 2 and envelop and cover a lower part of the operator part M2 by the side cover 3. Water slip surfaces 4A and 4B are provided to be continuous from the three-dimensional cover 2 to the side cover 3.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of monitoring equipment, in particular to video monitoring equipment with good weather resistance, which comprises a mounting bracket and a monitor body, a protective cover is fixedly mounted on the outer side of the monitor body, a driving motor is fixedly mounted at the middle end of the top of the protective cover, the output end of the driving motor is fixedly connected with a threaded rod, and the threaded rod is fixedly connected with the mounting bracket. A movable plate is in threaded connection with the left end of the outer surface of the threaded rod, guide pin shafts are fixedly connected to the front side and the rear side of the movable plate, limiting bases are movably connected to the outer sides of the guide pin shafts, and a solar cell panel is fixedly installed at the tops of the limiting bases. According to the utility model, under the action of the protective cover, the solar cell panel and the side baffle plates, the monitoring equipment has the advantage of good weather resistance, and the problem that the normal work of the equipment is influenced because the outdoor video monitoring equipment is easy to erode by rain, snow and sand after being used for a long time, especially by the irradiation of hot sunlight in summer is solved.

The invention discloses a photovoltaic tracking support and a control method thereof.The photovoltaic tracking support comprises a mounting bracket for mounting a photovoltaic module, a main shaft is fixed to the mounting bracket through at least two connecting parts, one end of the main shaft is movably connected to a second stand column, and the other end of the main shaft is provided with an azimuth angle adjusting mechanism; the bottom of the azimuth angle adjusting mechanism is movably connected with an electric telescopic rod; an ultrasonic anemorumbometer and a plurality of photosensitive diodes are arranged at the top of the photovoltaic module, and an attitude measurement sensor is arranged at the input end of the main shaft. The photovoltaic tracking support is simple in structure, good in anti-wind stability, high in control precision and capable of adapting to different collection environments, disturbance response is more timely in cooperation with a control method based on HOSMD-ADRC, real-time adjustment of the azimuth angle and the pitch angle of the support can be achieved, and the stability of the support is improved. Therefore, the photovoltaic module can receive the optimal sunlight irradiation at different times in one day, so that the photoelectric conversion efficiency is improved to the maximum extent.

The utility model discloses an airing device for pepper breeding, which comprises a stable placing seat, two support connecting frames are fixed at the top of the stable placing seat, and a support rotating rod penetrating through the other side of the support connecting frame is movably inserted into one side of the support connecting frame. According to the pepper seed airing device, the auxiliary airing mechanism is arranged, two metal impact rods can synchronously impact two sides of the bottom of the pepper seed airing placing plate, pepper seeds in the pepper seed airing placing plate are assisted to turn over, and the seeds are uniformly irradiated by sunlight, so that the purpose of uniformly drying is achieved, and the airing effect during pepper seed breeding is improved; by arranging a shielding windproof mechanism, the position locking and unlocking operation of the movable frame is simple and convenient, a shielding net plate can prevent strong wind from blowing away pepper seeds, the shielding net plate can also shield direct sunlight to a certain extent, and the situation that growth and development of the seeds are affected is avoided; and normal drying and ventilation of the pepper seed airing placing plate cannot be influenced.

Natural turmeric and hibiscus inks were developed for use on fabrics and writing surfaces. Ethanolic extracts of turmeric and hibiscus were obtained and formulated with environmentally friendly mordants such as ferrous sulfate, ascorbic acid, and apple cider vinegar, and thickeners such as linseed oil and aloe vera. These treatments were tested on fabric, filter paper, and notebook paper. Color and color loss were evaluated using the Paint program when exposed to sunlight and washing (in the case of fabric), comparing the RGB and Hex pixel values ​​obtained before and after sun exposure and washing. The degree of similarity was assessed using a digital Color Matcher Tool with the Hex and RGB data. Once the best treatment with the aforementioned mordants was determined, the ink formulation was developed using thickeners such as gelatin, alginate, cornstarch, and honey.It has a pleasing color and good consistency for use on fabric and paper. It's possible to create inks for writing and dyeing fabrics with readily available ingredients, thus contributing to environmental protection.

The utility model relates to the technical field of vehicle-mounted terminal equipment, in particular to a license plate recognition device based on a vehicle-mounted terminal, which comprises a vehicle-mounted terminal shell, a base and an environment sensing unit, the base and the environment sensing unit are positioned at the bottom of the vehicle-mounted terminal shell, and a visible light camera and an infrared camera are respectively arranged on the front end face of the vehicle-mounted terminal shell from left to right. An installation cavity is formed in the lower portion of the interior of the vehicle-mounted terminal shell, two kneading blocks are kneaded again during disassembly, two clamping plates are driven to be retracted into the vehicle-mounted terminal shell again, then the vehicle-mounted terminal shell can be taken down upwards, disassembly and assembly are convenient, the structure is simple, overhaul and maintenance are convenient, by arranging an illumination sensor and a rainfall sensor, the external environment is conveniently monitored, and the practicability is high. The sunlight exposure outside the vehicle is sensed through the illumination sensor, the rainfall condition outside the vehicle is sensed through the rainfall sensor, control information of turning on and turning off is provided for selecting the visible light camera and the infrared camera, so that license plate recognition is better carried out, the recognition rate in severe weather is high, and the environmental adaptability is improved.

This utility model discloses a high-strength bird deterrent device, relating to the technical field of bird deterrent devices. The high-strength bird deterrent device includes: a mounting base, a support rod fixedly connected to the upper end of the mounting base, a rotating shaft rotatably connected to the upper surface of the support rod, a fixing rod fixedly connected to the surface of the rotating shaft, a wind cup fixedly connected to the fixing rod, a reflector fixedly connected inside the wind cup, a reinforcing layer on the surface of the support rod, a protective layer on the surface of the reinforcing layer, and a locking assembly located on the mounting base for installing and locking the mounting base. This invention solves the technical problem of existing wind-powered bird deterrents having low strength, and the support components being easily affected by external conditions such as sunlight, temperature changes, wind, and rain during long-term use, leading to corrosion, oxidation, and reduced strength, thus affecting their service life.

The present invention provides a vehicle sun visor control method, system, electronic device, and vehicle, relating to the field of vehicle intelligent control technology. The method comprises obtaining the eye coordinates and eyelid opening and closing distance of a person at a preset position in the vehicle, obtaining first eye coordinates and the first eyelid opening and closing distance, and when the first eyelid opening and closing distance is less than a set eyelid opening and closing distance, obtaining the set sun visor parameters based on the first eye coordinates and a pre-set mapping relationship between the first eye coordinates and set sun visor parameters. The sun visor is adjusted based on the set sun visor parameters; after the sun visor is adjusted, the sun visor is fine-tuned based on the sunlight angle of the day. The set sun visor parameters for each eye coordinate are the position parameters of the sun visor that remains at the eye coordinate for the longest time. Adjusting the sun visor based on the set sun visor parameters at the beginning of the adjustment can improve the driver and passenger's experience of using the sun visor.

The present invention relates to the technical field of green building walls, specifically to an expandable green building wall, comprising a load-bearing wall and a wall frame embedded in the load-bearing wall, wherein the front side of the wall frame is fixedly connected to a horizontal frame, and the front side of the horizontal frame is fixedly connected to a pin. The present invention provides an expandable green building wall, which has the advantages of providing a load-bearing wall as a building support wall, installing an exterior wall structure through the wall frame, a hollow shaft inside the vertical frame for supporting the structure, and providing a planting component for planting plants. The planted plants can be selected from a variety of drought-resistant, cold-resistant herbs with low light requirements, such as sedum and scutellaria. After being expanded, the plants can receive sunlight and air circulation to exert their ecological functions. The auxiliary component's panel frame is usually stored at the bottom of the bottom rotating blade, and its photovoltaic panel can assist the building in energy supply.

The present invention discloses a heat dissipation system and a vehicle-mounted camera system for a vehicle-mounted camera. The heat dissipation system for the vehicle-mounted camera includes a power supply module and an active heat dissipation module. The active heat dissipation module is used to receive power from the power supply module and perform active heat dissipation on the vehicle-mounted camera. By providing an active heat dissipation module, the present invention can improve the heat dissipation speed of the vehicle-mounted camera as a whole or part thereof, and promptly remove the heat generated by the vehicle-mounted camera's own operation and the heat received by the vehicle-mounted camera due to factors such as sunlight exposure. This is conducive to maintaining the vehicle-mounted camera at a lower temperature, reducing the aging rate of components in the vehicle-mounted camera, and increasing the service life of the vehicle-mounted camera. It can keep the vehicle-mounted camera at a lower temperature, ensuring that the vehicle-mounted camera performs imaging and shooting in a stable manner. The vehicle-mounted camera system provided with such a heat dissipation system has the advantages of fast heat dissipation speed and stable operation. The present invention is widely used in the field of automotive technology.

The present invention discloses a sunshade movement mechanism, comprising: a base; a power mechanism capable of circumferential rotational motion; a transmission mechanism disposed on the base and connected to the power mechanism, capable of reciprocating in a linear direction under the drive of the power mechanism; and a sunshade rotatably disposed on the base, with a connecting rod of the sunshade connected to the transmission mechanism. When the power mechanism rotates circumferentially, the sunshade is driven by the transmission mechanism to move the sunshade, thereby causing the sunshade's light shield to open and close. The present invention can operate in the confined space inside a headlight, making the entire structure simple and compact. The dynamic opening and closing effect of the sunshade meets the personalized lighting needs of consumers. At the same time, the sunshade can effectively block external sunlight focus, preventing the headlight from failing after being exposed to sunlight for a long time, thereby protecting the headlight and increasing its service life.

The utility model provides a multipurpose baby stroller, which belongs to the technical field of baby strollers and comprises seat frames and a fixing support arranged on the seat frames, support rods are mounted between the seat frames, and a first protective frame is mounted on the side wall of one end of each seat frame. According to the utility model, the elastic bracket arranged between the support frames deforms while supporting when a child leans up backwards, so that the child is in soft contact with the elastic bracket, the comfort of the child in use is improved, and the arranged folding mechanism can adjust the angle of the support frames according to requirements, so that a comfortable sitting posture angle is provided for the child; the child is shaded by shifting the sunshade nets on the first net rack and the second net rack when the sunlight is strong, the situation that the child is directly irradiated by the sunlight and feels uncomfortable is avoided, the comfort degree of the child is further improved, when the child needs to sleep, the whole cart is arranged to be in a flat-lying shape through the folding mechanism, and therefore the child can sleep conveniently. Children can lie flat to sleep conveniently, and the sleep quality is improved.

The utility model relates to the technical field of seedling cultivation, and discloses a crop seedling cultivation rack which comprises a cultivation pipe, a set of installation blocks are fixed to the cultivation pipe at equal intervals, supporting mechanisms are arranged at the two ends of each installation block, cultivation brackets are installed at the top ends of the supporting mechanisms, and irrigation pipes are arranged on the surfaces of the cultivation brackets. A plurality of sprayers are distributed in the irrigation pipe at equal intervals, and a water tank is installed at the top end of the cultivation pipe. The cultivation bracket is supported through the supporting mechanism, in the cultivation process, the reverse threaded rod can be driven to move in the connecting piece by rotating the reverse threaded rotating cylinder according to the illumination requirement, then the cultivation bracket is jacked up to do lifting motion of the corresponding amplitude, the angle of the cultivation bracket can be flexibly changed, and the cultivation effect is improved. By means of the arrangement of the water tank and the irrigation pipe, the distribution effect of the irrigation pipe and the uniform spraying of the spray heads are matched, and it can be ensured that the nutrient solution evenly covers each seedling.

This invention relates to a bifacial photovoltaic (PV) power generation module and a PV power generation system. The bifacial PV power generation module includes a mounting frame, photovoltaic cells, a first reflective mirror, and a second reflective mirror. A first mounting plate and a second mounting plate are connected to form a V-shape. n rows of first photovoltaic cells are mounted on the first mounting plate to form a first photovoltaic cell group, and n-1 rows of second photovoltaic cells are mounted on the second mounting plate to form a second photovoltaic cell group. n-1 rows of first reflective mirrors are mounted on the first mounting plate, and n rows of second reflective mirrors are mounted on the second mounting plate. The first reflective mirrors face the second cell group, and the second reflective mirrors face the first cell group. This invention's bifacial PV power generation module increases the amount of sunlight received by the photovoltaic cells, fully utilizing the power generation characteristics of both reflected and direct sunlight from the bifacial cells. It can generate electricity throughout the sunshine period, thus achieving higher power output and allowing users to obtain a higher return on investment.

The invention belongs to the technical field of solar power generation, and particularly discloses a solar power generation device capable of enhancing sunlight irradiation, which comprises a base, convex blocks are fixedly connected to the two sides of the base, electric rotating shafts are mounted on the convex blocks on the two sides, and connecting plates are fixedly connected to the outer side walls of the electric rotating shafts. A light gathering plate is fixedly connected between the connecting plates on the two sides, a drainage groove is formed in the light gathering plate, a support is fixedly connected to the outer side wall of the light gathering plate, a photovoltaic cell is installed on the support and located above the light gathering plate, and a cleaning mechanism is arranged on the light gathering plate. The cleaning mechanism comprises limiting rails arranged on the two sides of the condensation plate, large-area sunlight is reflected to the photovoltaic cell in a concentrated mode through the design of the inwards-concave arc-shaped condensation plate and the curved surface optical focusing principle, the light energy density received by the photovoltaic cell is remarkably improved, and compared with a traditional plane structure, the power generation efficiency is greatly improved.

The utility model relates to the technical field of plant cultivation, in particular to a splicing type plant cultivation box which comprises a fixing plate, two first frame bodies are arranged at the upper end of the fixing plate, the first frame bodies are fixedly connected to the left side and the right side of the fixing plate, second frame bodies are arranged below the first frame bodies, and the upper ends of the second frame bodies are in sliding connection with the lower ends of the first frame bodies. A third frame body is arranged below the second frame body, the upper end of the third frame body is in sliding connection with the lower end of the second frame body, box bodies are arranged on the first frame body, the second frame body and the third frame body, and at least two limiting rods are arranged on the side, facing the second frame body and the third frame body, of the fixing plate face. The two sets of frame bodies below the first frame body can be unfolded from the two sides of the fixing plate, when the two sets of frame bodies are unfolded, the limiting rods can limit all the frame bodies, the ladder-shaped frame body structure can enable plants placed in the box body to receive more sunlight irradiation, and the illumination effect is improved.

The utility model provides a kind of hidden multifunctional hardware bathroom storage rack, belong to hardware bathroom storage rack technical field, its structure includes outer box, and outer box front side middle part is equipped with storage room, and first hidden room and second hidden room are formed by first partition along partition in storage room, the storage rack group for completing the partition hiding of first hidden room and second hidden room is hinged in the front side of storage room, the indoor upper end of the second hidden room is provided with sterilizing cover group, it is convenient to place toothpaste and toothbrush respectively on corresponding toothbrush holder group and toothpaste rack, and cover and hide in corresponding first hidden room and second hidden room, so that toothpaste is not irradiated by sunlight to appear softening influence quality problem, and toothbrush can be treated by ultraviolet disinfection after being hidden, effectively prevent the breeding of bacteria, the product function is various, and practicality is strong.

The present invention relates to a single-axis device for tracking the sun's path in its orbit to provide photovoltaic (PV) panels with maximum sunlight at any time of day, thereby significantly improving their efficiency. The invention can be combined with patent application no. FR2310044, which allows for the addition of a BOX to the PV panel to recover the waste heat produced on its underside as electricity or other products (green hydrogen), thereby further increasing the productivity of the solar array. The process is fully automated, requires minimal mechanization (no motor, only a low-power pump), and is simple to install and maintain for single panels, whether in series or in a field, regardless of the terrain. The trackers can share certain resources.Specific control and management software optimizes radiation capture, automates the system, and enables remote monitoring. The invention allows for the collection of satellite water using gutters, its storage, and its reuse, thus limiting the harmful environmental effects of runoff onto the ground. In its version implementing the BOX, it also allows for the complete inverting of the photovoltaic unit, exposing the metal face of the BOX to the elements (hail) and protecting the PV panels from mechanical damage. The system can also be equipped with an integrated windbreak system and / or a light reflector to improve the illumination of the panels located opposite it.

Freestanding, self-supporting device for protection against the elements, especially for use with a roof tent mounted on a vehicle, characterized by that the device has a load-bearing frame system, - which requires no ground anchoring or guy wires at all, - consisting of at least two telescopic support elements, - wherein the support elements are attached horizontally or diagonally to a support structure of the vehicle or directly to the base plate of the roof tent, and -where a textile covering is stretched over the frame system and connected to the roof tent via a zipper connection or an equivalent textile coupling.

This utility model discloses a solar-powered portable emergency speaker device, belonging to the field of audio equipment technology. The device includes a housing, with an adjusting component fixedly installed on the upper center of the housing. A pair of support frames are fixedly installed on both sides of the adjusting component at the upper end of the housing. A mounting plate is provided on the rear side of the housing, and a solar panel is fixedly installed on the rear side of the mounting plate. A pair of snap-fit ​​components are fixedly installed on the front side of the mounting plate. With this mounting plate structure, during normal use, the mounting plate is fixed to the rear side of the housing. When the power is depleted during outdoor use, the operator can remove the entire mounting plate and snap it onto the upper end of the support frames. This allows for easy adjustment of the mounting plate according to the sunlight position, facilitating solar charging of the device to meet the needs of outdoor emergency use.

1. The name of the design product: solar water heating bag. 2. The use of the design product: for heating water in the bag by solar radiation. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The utility model relates to the technical field of photovoltaic power generation, in particular to a photovoltaic power generation reflecting device which comprises a photovoltaic support, a photovoltaic panel is arranged on the top of the photovoltaic support, a movable lifting assembly is arranged on one side of the photovoltaic support, a steering assembly is arranged above the movable lifting assembly, and an angle adjusting assembly is arranged on the top of the steering assembly. The first driving mechanism drives the first straight gear to rotate, the first straight gear drives the rotating block to rotate by a certain angle around the rotating base through the rotating shaft, the rotating block drives the reflecting plate to rotate by a certain angle in the vertical direction, and then the angle of the reflecting plate can be adjusted; the reflecting plate can well reflect sunlight to the photovoltaic panel, so that the reflecting effect is better, and the photoelectric conversion efficiency is not affected.

The present invention relates to a single-axis device for tracking the sun's path in its orbit to provide photovoltaic (PV) panels with maximum sunlight at any time of day, thereby significantly improving their efficiency. The invention can be combined with patent application no. FR2310044, which allows for the addition of a BOX to the PV panel to recover the waste heat produced on its underside as electricity or other products (green hydrogen), thereby further increasing the productivity of the solar array. The process is fully automated, requires minimal mechanization (no motor, only a low-power pump), and is simple to install and maintain for single panels, whether in series or in a field, regardless of the terrain. The trackers can share certain resources.Specific control and management software optimizes radiation capture, automates the system, and enables remote monitoring. The invention allows for the collection of satellite water using gutters, its storage, and its reuse, thus limiting the harmful environmental effects of runoff onto the ground. In its version implementing the BOX, it also allows for the complete inverting of the photovoltaic unit, which then exposes the metal face of the BOX to the elements (hail) and protects the PV array from mechanical damage. The process can also be equipped with an integrated windbreak system and / or a light reflector to improve the illumination of the panels located opposite it.

The utility model relates to the technical field of weaving processing, in particular to a raw material drying device for weaving processing, which comprises a drying box, a drying plate, a mirror surface, a vibration motor, a damping shock absorber, an electric heating tube, a fan, a drying component, a solar panel and a fluorescent lamp, the drying plate is arranged on the inner side of the drying box, and the mirror surface is arranged on the inner side of the drying box. A vibration motor is arranged on the bottom face of the airing plate, a damping shock absorber is arranged on the bottom face of the airing plate, an electric heating pipe is arranged below the damping shock absorber, a fan is arranged below the electric heating pipe, a drying assembly is arranged on one side of the fan, a solar panel is arranged on the outer side of the airing box, and a fluorescent lamp is arranged above the airing box. By means of solar energy storage, solar energy is fully stored while raw materials are irradiated by sunlight, energy consumption of the device is reduced, it is guaranteed that drying operation can be continuously carried out under any weather condition, meanwhile, movement of the raw materials is accelerated, hot air is blown to the raw materials from bottom to top for multiple drying treatment, and therefore the practical value of the device is effectively enhanced.

The present application relates to the technical field of catalytic material preparation, and specifically discloses a single-atom nickel supported copper cerium composite oxide as well as a preparation method and application thereof. The present application uses citric acid as a template and metal salts as precursors to form a Ni / CuO-CeO2 composite catalyst through high-temperature expansion and air annealing. The catalyst is used for low-temperature CO2 methanation, and achieves CH4 production rates of 80.4 and 1938 mmol / g / h at 200 DEG C and 300 DEG C, respectively, with a CH4 selectivity of 99.5%. When used in combination with a TiC / Cu membrane reaction tube to absorb sunlight to heat the catalyst, the Ni / CuO-CeO2 composite catalyst shows a photothermal CO2 methanation rate of 2289 mmol / g / h under weak sunlight and a stable CO2 methanation rate of about 356 mmol / h in a dark environment, thus ensuring the continuity of industrial production.

The utility model provides an insect prevention flowerpot for a tobacco potting test, and belongs to the technical field of flowerpots. Comprising a flowerpot body, a supporting ring is arranged on the upper wall of the outer side of the flowerpot body, a detachable insect prevention net frame is inserted into the top of the supporting ring, a detachable light-transmitting cover is inserted into the top of the insect prevention net frame, a lifting handle is arranged on the top of the light-transmitting cover, and the insect prevention net frame is in a big-end-up horn shape and comprises a bottom ring and a top ring; a plurality of supporting rods inclining outwards are arranged on the circumference between the top of the bottom ring and the bottom of the top ring, and a first insect-proof gauze element is arranged between the supporting rods in a wrapping mode. An insect prevention area is formed among the flowerpot body, the light-transmitting cover and the second insect prevention gauze, sunlight can effectively penetrate through the light-transmitting cover, the light-transmitting cover can be conveniently disassembled and assembled from the top of the top ring, compared with a traditional method that a layer of insect prevention gauze is directly wrapped outside the flowerpot body, the flowerpot can be effectively irradiated by the sunlight while the insect prevention effect is guaranteed, and the flowerpot is convenient to use. The tobacco plants can be conveniently exposed for fertilization, watering, soil loosening and the like.