CN114696731A - Economical photovoltaic power plant of high utilization - Google Patents
Economical photovoltaic power plant of high utilization Download PDFInfo
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- CN114696731A CN114696731A CN202210444224.6A CN202210444224A CN114696731A CN 114696731 A CN114696731 A CN 114696731A CN 202210444224 A CN202210444224 A CN 202210444224A CN 114696731 A CN114696731 A CN 114696731A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
- H02S10/12—Hybrid wind-PV energy systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S30/00—Structural details of PV modules other than those related to light conversion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S30/00—Structural details of PV modules other than those related to light conversion
- H02S30/20—Collapsible or foldable PV modules
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/42—Cooling means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/44—Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The invention discloses an economical photovoltaic power station with high utilization rate, which comprises a lifting rod, a planting frame, an electric telescopic rod and an auxiliary photovoltaic box, wherein the top of the lifting rod is connected with a movable rod in a sliding manner, and a main photovoltaic box is fixed at the top of the movable rod; electric telescopic handle is installed through the axle piece in the surface of movable rod, electric telescopic handle's trailing end connection has an auxiliary photoelectric box, auxiliary photoelectric box's surface passes through the surface swing joint of hinge and main photoelectric box, auxiliary photoelectric box and main photoelectric box's inside all installs transparent top cap, thermoelectric conversion mechanism is all installed to the inner wall of transparent top cap. The photovoltaic power station is provided with the four groups of auxiliary photovoltaic boxes and the electric telescopic rods, so that the angle between the auxiliary photovoltaic boxes and the main photovoltaic box is adjusted, high-temperature utilization at night is realized under the assistance of the thermoelectric conversion mechanism and the winding mechanism, and the energy utilization rate and the economic effect of the photovoltaic power station are further improved.
Description
Technical Field
The invention relates to the technical field of photovoltaic power stations, in particular to an economical photovoltaic power station with high utilization rate.
Background
A photovoltaic power station refers to an internal power generation system that uses solar energy and is made of special materials such as a crystalline silicon plate, an inverter, and other electronic components, and a photovoltaic power generation system that is compatible with a power grid and transmits power to the power grid, and is roughly divided into a distributed small-sized grid-connected photovoltaic system and a centralized large-sized grid-connected photovoltaic power station, wherein the distributed small-sized grid-connected photovoltaic system is mostly installed on the surface of a building, and the centralized large-sized grid-connected photovoltaic power station is mostly distributed in desert and outdoors, and in consideration of energy utilization, it is necessary to improve the energy utilization efficiency of the photovoltaic power station.
The existing photovoltaic power station has the defects that:
1. patent document CN108336948B discloses a mobile photovoltaic power station, "including a mobile carriage and photovoltaic solar modules, where the photovoltaic solar modules include storage batteries and rotary driving mechanisms, there are two groups of rotary driving mechanisms, each group of rotary driving mechanism is connected with a first photovoltaic film cylinder and a second photovoltaic film cylinder, and each of the first photovoltaic film cylinder and the second photovoltaic film cylinder is composed of a connecting shaft and a photovoltaic film plate wound on the connecting shaft; the photovoltaic solar module further comprises a controller, and the controller is connected with and controls the rotary driving mechanism and the storage battery. The invention uses the windable photovoltaic film plate, and the windable photovoltaic film plate is matched with the remote control tractor and the rotary driving mechanism, so that the photovoltaic film plate can be unfolded and folded quickly, the operation is convenient, and the windable photovoltaic film plate can adapt to various working environments. In addition, a multilayer film air bag is additionally arranged, and the adjustment of the inclination angle of the photovoltaic film plate is realized through selective inflation, so that the light absorption and photoelectric conversion efficiency of the photovoltaic power station is effectively improved;
2. the patent document CN108233848B discloses a desert photovoltaic power station device, which comprises a fixed base fixedly arranged on the ground and a rotating seat arranged above the fixed base, wherein a steering motor is embedded in the middle of the fixed base, the top end surface of the steering motor is connected with a rotating shaft in a power fit manner, the rotating shaft is fixedly connected with the bottom surface of the rotating seat, a ball bearing is arranged between the fixed base and the rotating seat, and a photovoltaic power generation device is arranged above the rotating seat, in the invention, a photovoltaic panel can adjust the included angle and the overall orientation between the photovoltaic panel and the ground to adapt to the change of solar altitude angle, and can be in a parallel state with the ground as far as possible in the case of wind and sand weather to reduce the damage of the photovoltaic panel, besides, rain and dew water is collected in a water collecting tank and is irrigated to the ground below the photovoltaic panel after being filtered by a dirt filtering component, the desertification degree is reduced, the photovoltaic power station strengthens the growth of plants through the collection of the rainwater, but does not correspondingly manage the plants, so that the growth of the plants is in a disordered state, and the installation integrity of equipment is indirectly influenced;
3. patent document CN108400766B discloses a desert photovoltaic power station, "set up including connecing the dress pedestal and pegging graft the solar photovoltaic plate structure on the dress pedestal, connect the internal first sliding tray that is equipped with of pedestal inner wall, be equipped with the groove in the first sliding tray left side inner wall, it is equipped with left joint groove to wear groove left side intercommunication, left side joint groove runs through connect pedestal top end face, be equipped with the sliding tray in the first sliding tray right side inner wall, sliding fit installs first sliding block in the first sliding tray, screw fit installs the threaded rod in the first sliding block, threaded rod left side extension end with first sliding tray normal running fit is connected, threaded rod right side extension end is connected with first motor power fit, first motor surface sets firmly in first sliding tray right side inner wall, the threaded rod downside set firmly the sliding plate in the first sliding block", when the photovoltaic power station works, the effective conversion of temperature heat in the environment is realized, so that the utilization rate of the photovoltaic power station is not high;
4. patent document CN106385224B discloses an above-water photovoltaic power station, which comprises a buoy, a limit upright post, a support beam, a mounting beam and a photovoltaic assembly, wherein the buoy is arranged on the water surface, the limit upright post is connected with the buoy, and the limit upright post can extend or shorten along with the rise and fall of the buoy when the water level rises and falls; the support column is arranged on the floating barrel, the support beam is respectively connected with the limit column and the support column, the installation beam is connected with the support beam, and the photovoltaic assembly is connected with the installation beam. Above-mentioned photovoltaic power plant on water has that maintenance cost is low, stability is high and does not influence aquatic animal and plant growth and water quality's advantage ", and this photovoltaic power plant lacks stable structure when using, follows rivers easily and takes place the displacement, influences stability.
Disclosure of Invention
The invention aims to provide an economical photovoltaic power station with high utilization rate, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an economical photovoltaic power station with high utilization rate comprises a lifting rod, a planting frame, an electric telescopic rod and an auxiliary photovoltaic box, wherein a movable rod is connected to the top of the lifting rod in a sliding mode and is electrically connected with the lifting rod, and a main photovoltaic box is fixed to the top of the movable rod;
an electric telescopic rod is mounted on the surface of the movable rod through a shaft piece, an auxiliary photoelectric box is connected to the tail end of the electric telescopic rod, the surface of the auxiliary photoelectric box is movably connected with the surface of the main photoelectric box through a hinge, transparent top covers are mounted inside the auxiliary photoelectric box and the main photoelectric box, and thermoelectric conversion mechanisms are mounted on the inner walls of the transparent top covers;
the number of the auxiliary photoelectric boxes is four.
Preferably, the bottom of lifter is fixed with the installation disc, the surface mosaic of installation disc is installed and is planted the frame, the bottom otter board is installed to the bottom of planting the frame, the inside shop of planting the frame has been spread and has been cultivateed the soil layer, and cultivates the top surface that the soil layer is located the bottom otter board, the top lid otter board is installed to the top mosaic of planting the frame, driving motor is installed at the top of top lid otter board, driving motor's output is connected with ball, a cup joint the piece on ball's surface, the surface mounting of a cup joint the piece has the connecting plate, fan and blade are installed to the bottom of connecting plate, and the blade is located the place ahead of fan.
Preferably, thermoelectric conversion mechanism is including slip ring, stock, No. two ball, No. two cup joints piece, servo motor, solid fixed ring and winding mechanism, assist the inner wall of photoelectricity box and main light electricity box and all install servo motor, servo motor's output is connected with No. two ball, No. two ball's surface has cup jointed the piece No. two, servo motor's surface, the inner wall of assisting photoelectricity box and main light electricity box all are connected with the stock, the surface mounting of stock has solid fixed ring and slip ring, and gu fixed ring is located the centre of slip ring and servo motor, gu the surface connection of fixed ring and slip ring has winding mechanism, No. two cup joints the piece and is connected through the quarter butt with the surface of slip ring.
Preferably, assist the inside of photoelectricity box and main light electricity box and all install miniature wind power generation equipment and breather pipe, and miniature wind power generation equipment and breather pipe interval arrangement, the surface mounting of breather pipe has electronic switch, the diaphragm is installed to the inner wall of breather pipe, the bottom surface mounting of diaphragm has humidity inductor and pressure sensors, and pressure sensors is located one side of humidity inductor.
Preferably, the sliding ring is connected with the long rod in a sliding mode, the fixing ring is fixedly connected with the surface of the long rod, and the long rod on the surface of the servo motor and the long rod connected with the inner walls of the auxiliary photoelectric box and the main photoelectric box are located on the same plane;
the section of the blade is trapezoidal, the gradient of the blade is gradually increased from front to back, the height of the fan is greater than the height of the top surface of the blade, and the driving motor is electrically connected with the fan;
the humidity sensor and the pressure sensor are electrically connected with the electronic switch;
the winding mechanism comprises black cloth, a glue joint layer and a thermoelectric conversion film, the top of the thermoelectric conversion film is provided with the glue joint layer, and the top of the glue joint layer is glued with the black cloth;
and each group of auxiliary photoelectric boxes is connected with two groups of electric telescopic rods.
Preferably, the inside of assisting photoelectricity box and main light photoelectricity box all installs photovoltaic cell panel, photovoltaic cell panel keeps away from one side surface mounting of transparent top cap has the support, the tail end of support with assist the inner wall connection that photoelectricity box and main light photoelectricity box are close to the movable rod.
Preferably, the inside of installation disc is run through and is installed the inserted bar, the pointed cone piece is installed to the bottom of inserted bar, the top fixed mounting of inserted bar has spacing dish, the inside of spacing dish is equipped with the thread groove that runs through, and the bottom of thread groove runs through the inside that extends to the inserted bar, the internally mounted of thread groove has connecting screw.
Preferably, plant seeds with developed fibrous root systems are placed in the culture soil layer, and the mesh diameter of the top cover screen plate is smaller than that of the bottom cover screen plate.
Preferably, the method comprises the following steps:
s1, before the photovoltaic power station is installed, after the installation disks are limited at the designated positions by the aid of the inserted rods, soil digging treatment is carried out on the ground enclosed by the four groups of installation disks, then the planting frame is embedded with the installation disks and is extruded downwards, the bottom of the planting frame is located below the bottom of the installation disks, then a culture soil layer mixed with plant seeds is placed inside the planting frame, and a top cover screen plate is covered;
s2, after the photovoltaic conversion device is installed, the auxiliary photovoltaic boxes and the main photovoltaic box are respectively influenced by photoelectric effects to perform photoelectric conversion, the electric telescopic rod is started, and the included angles between the four groups of auxiliary photovoltaic boxes and the main photovoltaic box are adjusted by adjusting the length of the electric telescopic rod, so that the contact surfaces of the four groups of auxiliary photovoltaic boxes and direct solar rays are maximized, and the photoelectric conversion efficiency of the photovoltaic power station is maximized;
s3, when the photovoltaic power station works and wind rises, an electronic switch on the surface of the vent pipe is turned on, so that external air flow enters the auxiliary photovoltaic box and the main photovoltaic box, the miniature wind power generation equipment is driven to perform wind power generation operation, and the power conversion utility of the photovoltaic power station is improved;
s4, when the electric heating furnace is in a high-temperature night environment, the servo motor is started to drive the second socket joint piece to move on the surface of the second ball screw, and then the sliding ring is driven to move along the surface of the long rod until the rolling mechanism is unfolded to completely cover the surface of the transparent top cover, so that the black cloth can absorb heat to the maximum extent and transfer the heat to the thermoelectric conversion film for thermoelectric conversion operation;
s5, in the use process of the photovoltaic power station, cutting the plants emerging from the surface of the top cover screen plate by using a blade, inhibiting the plants from growing upwards and ensuring the water and soil stabilizing effect of the plants on the ground below;
wherein, in the S3, the method specifically includes the following working steps:
s31, when the wind power level is higher than 8, the electric telescopic rod is shortened to drive the auxiliary photovoltaic box in the expanded state to be in a folded state, and meanwhile, the lifting rod is started to enable the movable rod to descend, so that the overall gravity center height of the photovoltaic power station is reduced, and the stability in strong wind weather is kept;
s32, when encountering wind and rain weather, the humidity sensor detects that the humidity value exceeds a safety threshold, the electronic switch is closed at the moment, external wind and rain are prevented from entering the interiors of the auxiliary photoelectric box and the main photoelectric box through the vent pipe, and the electric power safety of the photovoltaic cell panels in the auxiliary photoelectric box and the main photoelectric box and the electric power safety of the micro wind power generation equipment are further protected;
s33, when the wind-powered main photovoltaic box is in a windy and clear weather, the pressure sensor detects that the wind power effect exists, the humidity sensor detects that the humidity value of the air is in a normal state, and the electronic switch is turned on at the moment, so that external wind power smoothly enters the auxiliary photovoltaic box and the main photovoltaic box to perform wind power generation operation.
10. The method for using the high-utilization economical photovoltaic power plant as claimed in claim 9, wherein the step S3 specifically comprises the following steps:
s51, after the plants take roots and germinate, the developed fibrous root systems extend and expand to the ground, so that the water and soil connection effect between the photovoltaic power station and the ground is enhanced, the water and soil loss is reduced, and the installation stability of the photovoltaic power station is enhanced;
s52, when plants grow upwards, the driving motor is started regularly to drive the first ball screw and the first sleeve piece on the surface to move linearly, and further drive the blade at the bottom of the connecting plate and the fan to move synchronously;
s53, in the moving process, the blade cuts off the emerged plant, and simultaneously the wind power blown by the fan can blow off the cut plant and the stem liquid on the surface of the blade, so that the cleanness of the top cover screen plate and the surface of the blade is ensured, and the plant is inhibited from continuously growing upwards to generate interference on the main photoelectric box.
Compared with the prior art, the invention has the beneficial effects that:
1. the photovoltaic power station is provided with the lifting rod, the movable rod, the electric telescopic device, the auxiliary photovoltaic boxes and the main photovoltaic box, the included angles between the four groups of auxiliary photovoltaic boxes and the main photovoltaic box are adjusted by adjusting the length of the electric telescopic rod, the maximization of the photoelectric conversion efficiency of the photovoltaic power station is ensured, and meanwhile, when the photovoltaic power station encounters strong wind weather, the overall gravity center height of the photovoltaic power station is reduced by drawing the four groups of auxiliary photovoltaic boxes and reducing the height of the movable rod, so that the stability of the photovoltaic power station is enhanced, and the possibility of being turned over by strong wind is reduced.
2. The planting frame, the culture soil layer, the driving motor, the first ball screw, the fan and the blades are arranged, the driving motor is started regularly to indirectly drive the blades at the bottom of the connecting plate and the fan to move synchronously, the blades cut off emerging plants, and meanwhile, the wind power blown out by the fan can blow off the cut plants and stem liquid on the surfaces of the blades, so that the cleanness of the top cover screen plate and the surfaces of the blades is guaranteed.
3. By installing the thermoelectric conversion mechanism and the winding mechanism, when the photovoltaic power station is in a high-temperature night environment, the servo motor is started to indirectly drive the sliding ring to move along the surface of the long rod until the winding mechanism is unfolded, so that the black cloth can absorb heat to the maximum extent and transfer the heat to the thermoelectric conversion film for thermoelectric conversion operation, and the electric conversion efficiency and the economic effect of the photovoltaic power station are provided.
4. According to the invention, the ventilation pipe, the miniature wind power generation equipment, the electronic switch, the humidity sensor and the pressure sensor are arranged, the humidity sensor is used for detecting the humidity index in the external environment of the auxiliary photoelectric box and the main photoelectric box, the electronic switch is closed in wind and rain weather, and the electronic switch is opened in windy and clear weather, so that external wind can smoothly enter the auxiliary photoelectric box and the main photoelectric box to perform wind power generation operation, and the utilization rate of the photovoltaic power station is enhanced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal mounting structure of the planting frame of the present invention;
FIG. 3 is a schematic view of the installation structure of the inserted link, the limiting disc and the connecting screw rod of the invention;
FIG. 4 is a schematic view of the connecting plate, first socket, fan and blade mounting structure of the present invention;
FIG. 5 is a schematic view of an internal mounting structure of the auxiliary photovoltaic cell of the present invention;
FIG. 6 is a schematic view of the internal installation structure of the vent pipe of the present invention;
FIG. 7 is a schematic view of a transparent top cover and a thermoelectric conversion mechanism mounting structure according to the present invention;
FIG. 8 is a schematic view of a winding mechanism mounting structure of the present invention;
FIG. 9 is a flow chart illustrating a method of using the present invention.
In the figure: 1. installing a disc; 2. inserting a rod; 3. a limiting disc; 4. connecting a screw rod; 5. a lifting rod; 6. planting a frame; 7. cultivating the soil layer; 8. a top cover screen plate; 9. a connecting plate; 10. a drive motor; 11. a first ball screw; 12. a bottom cover screen plate; 13. a first socket; 14. a fan; 15. a blade; 16. a thermoelectric conversion mechanism; 17. a movable rod; 18. an electric telescopic rod; 19. an auxiliary photovoltaic cell; 20. a main photo-cell; 21. a breather pipe; 22. a miniature wind power plant; 23. a photovoltaic cell panel; 24. an electronic switch; 25. a transverse plate; 26. a humidity sensor; 27. a pressure sensor; 28. a transparent top cover; 29. a slip ring; 30. a long rod; 31. a second ball screw; 32. a second socket; 33. a servo motor; 34. a fixing ring; 35. a winding mechanism; 36. black cloth; 37. a glue joint layer; 38. a thermoelectric conversion film.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the 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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-9, an embodiment of the present invention is shown: an economical photovoltaic power station with high utilization rate comprises a lifting rod 5, a planting frame 6, an electric telescopic rod 18 and an auxiliary photovoltaic box 19, wherein the top of the lifting rod 5 is connected with a movable rod 17 in a sliding mode, the movable rod 17 is electrically connected with the lifting rod 5, and a main photovoltaic box 20 is fixed to the top of the movable rod 17;
an electric telescopic rod 18 is mounted on the surface of the movable rod 17 through a shaft, an auxiliary photoelectric box 19 is connected to the tail end of the electric telescopic rod 18, the surface of the auxiliary photoelectric box 19 is movably connected with the surface of the main photoelectric box 20 through a hinge, transparent top covers 28 are mounted inside the auxiliary photoelectric box 19 and the main photoelectric box 20, and a thermoelectric conversion mechanism 16 is mounted on the inner walls of the transparent top covers 28;
the installation quantity of assisting photoelectric box 19 is four groups, and the quantity that electric telescopic handle 18 is connected to every group of assisting photoelectric box 19 is two sets of, assists photoelectric box 19 and the inside of main photoelectric box 20 and all installs photovoltaic cell panel 23, and one side surface mounting that transparent top cap 28 was kept away from to photovoltaic cell panel 23 has the support, the tail end of support with assist photoelectric box 19 and the inner wall connection that main photoelectric box 20 is close to movable rod 17.
Further, the auxiliary photoelectric boxes 19 and the main photoelectric box 20 are respectively influenced by photoelectric effects to perform photoelectric conversion, and the included angles between the four groups of auxiliary photoelectric boxes 19 and the main photoelectric box 20 are adjusted by adjusting the length of the electric telescopic rod 18, so that the two groups of opposite auxiliary photoelectric boxes 19 are obliquely arranged on the main photoelectric box 20 one above the other, a design similar to a reclining chair is formed, the maximum photoelectric contact area can be obtained under different direct sunlight conditions, and the maximization of the photoelectric conversion efficiency of the photovoltaic power station is ensured; meanwhile, when the weather is met with strong wind, the height of the whole gravity center of the photovoltaic power station is lowered by drawing in the four groups of auxiliary photovoltaic boxes 19 and lowering the height of the movable rod 17, so that the stability of the photovoltaic power station is enhanced, and the possibility of being turned over by strong wind is lowered.
The bottom of the lifting rod 5 is fixed with a mounting disc 1, the surface of the mounting disc 1 is embedded with a planting frame 6, the bottom of the planting frame 6 is provided with a bottom cover screen plate 12, a culture soil layer 7 is paved inside the planting frame 6, the culture soil layer 7 is positioned on the top surface of the bottom cover screen plate 12, the top of the planting frame 6 is embedded with a top cover screen plate 8, the top of the top cover screen plate 8 is provided with a driving motor 10, the output end of the driving motor 10 is connected with a ball screw 11, the surface of the ball screw 11 is sleeved with a sleeve piece 13, the surface of the sleeve piece 13 is provided with a connecting plate 9, the bottom of the connecting plate 9 is provided with a fan 14 and a blade 15, the blade 15 is positioned in front of the fan 14, the cross section of the blade 15 is trapezoidal, the gradient of the blade 15 gradually increases from front to back, the height of the fan 14 is greater than the top surface height of the blade 15, and the driving motor 10 is electrically connected with the fan 14, plant seeds with developed fibrous root systems are placed in the culture soil layer 7, and the mesh diameter of the top cover screen plate 8 is smaller than that of the bottom cover screen plate 12.
Furthermore, the plant seeds with developed fibrous root systems have developed root hairs in the growth process, have strong connection with soil layers below the ground, and can reduce the phenomenon of unstable installation caused by loose and soft soil or water and soil flowing water;
in order to avoid the unrestricted upward growth of plants, the top ends of the plants need to be cleaned and cut regularly, a driving motor 10 is started to drive a ball screw 11 and a sleeve piece 13 on the surface to move linearly, so as to drive a blade 15 and a fan 14 at the bottom of a connecting plate 9 to move synchronously, the blade 15 cuts the emerged plants, and simultaneously, the wind power blown out by the fan 14 can blow off the cut plants and stem liquid on the surface of the blade 15, so that the clean surfaces of a top cover screen plate 8 and the blade 15 are ensured;
and the design of top cap otter board 8 and bottom otter board 12 can reduce the possibility that drills out in the space that the top cap otter board 8 was moved on the plant top, plays the effect that restraines the plant growth, and the mesh of bottom otter board 12 is actual simultaneously, makes things convenient for the plant root system to expand downwards.
The thermoelectric conversion mechanism 16 comprises a slip ring 29, a long rod 30, a second ball screw 31, a second sleeve joint 32, a servo motor 33, a fixing ring 34 and a winding mechanism 35, wherein the servo motor 33 is respectively arranged on the inner walls of the auxiliary photoelectric box 19 and the main photoelectric box 20, the output end of the servo motor 33 is connected with the second ball screw 31, the second sleeve joint 32 is sleeved on the surface of the second ball screw 31, the long rod 30 is respectively connected with the surface of the servo motor 33, the inner walls of the auxiliary photoelectric box 19 and the main photoelectric box 20, the fixing ring 34 and the slip ring 29 are arranged on the surface of the long rod 30, the fixing ring 34 is positioned between the slip ring 29 and the servo motor 33, the winding mechanism 35 is connected on the surfaces of the fixing ring 34 and the slip ring 29, the second sleeve joint 32 is connected with the surface of the slip ring 29 through a short rod, the slip ring 29 is connected with the slip ring 30 in a sliding manner, the fixing ring 34 is fixedly connected with the surface of the long rod 30, and the stock 30 on servomotor 33 surface is located the coplanar with the stock 30 of assisting the inboard wall connection of photoelectric box 19 and main photoelectric box 20, and winding mechanism 35 is including black cloth 36, cementing layer 37 and thermoelectric conversion film 38, and cementing layer 37 is installed at the top of thermoelectric conversion film 38, and cementing at the top of cementing layer 37 has black cloth 36.
Further, this photovoltaic power plant is when being in high temperature night environment, start servo motor 33, drive No. two and cup joint the piece 32 and remove on No. two ball 31's surface, and then drive slip ring 29 along stock 30 surface removal, until winding mechanism 35 is unfolded and is covered transparent top cap 28's surface completely, make black cloth 36 can maximize the heat absorption and carry out thermoelectric conversion operation in transferring the heat to thermoelectric conversion film 38, make this photovoltaic power plant when being difficult to carry out photoelectric processing night, still can carry out the photoelectric conversion operation with the help of the heat in the environment, provide this photovoltaic power plant's electric conversion efficiency and economic benefits.
Inside of assisting light electric box 19 and main light electric box 20 all installs miniature wind power generation equipment 22 and breather pipe 21, and miniature wind power generation equipment 22 and breather pipe 21 interval arrangement, the surface mounting of breather pipe 21 has electronic switch 24, the diaphragm 25 is installed to the inner wall of breather pipe 21, the bottom surface mounting of diaphragm 25 has humidity inductor 26 and pressure sensors 27, and pressure sensors 27 is located one side of humidity inductor 26, pressure sensors 27 and electronic switch 24 electric connection.
Further, there is wind power effect outside assisting photoelectricity box 19 and main photoelectricity box 20 to act on, pressure sensors 27 can detect the impact effect of wind-force, and detect the moisture index in assisting photoelectricity box 19 and the main photoelectricity box 20 external environment through humidity inductor 26, when meeting with wind and rain weather, electronic switch 24 is closed, when being in the weather of wind and fine, electronic switch 24 opens, thereby make outside wind-force get into smoothly and assist inside wind power generation operation of carrying out of photoelectricity box 19 and main photoelectricity box 20, strengthen this photovoltaic power plant's utilization ratio.
The inside of installation disc 1 runs through and installs inserted bar 2, and the pointed cone piece is installed to the bottom of inserted bar 2, and the top fixed mounting of inserted bar 2 has spacing dish 3, and the inside of spacing dish 3 is equipped with the thread groove that runs through, and the bottom of thread groove runs through the inside that extends to inserted bar 2, and the internally mounted of thread groove has connecting screw 4.
Further, utilize inserted bar 2 to be spacing in assigned position department with installation disc 1 to utilize spacing dish 3 to retrain the top of inserted bar 2 at the top of installation disc 1, when needs extract inserted bar 2, reverse rotation connecting screw 4 makes connecting screw 4's top shift out the inside of thread groove, later grasps connecting screw 4's top and can drive inserted bar 2 and extract the inside of soil layer and installation disc 1.
The method comprises the following steps:
s1, before the photovoltaic power station is installed, after the installation disks 1 are limited at the designated positions by the aid of the inserting rods 2, soil digging treatment is carried out on the ground enclosed by the four groups of installation disks 1, then the planting frame 6 is embedded with the installation disks 1 and is extruded downwards, the bottom of the planting frame 6 is located below the bottom of the installation disks 1, then a culture soil layer 7 mixed with plant seeds is placed inside the planting frame 6, and a top cover screen plate 8 is covered;
s2, after the photovoltaic conversion device is installed, the auxiliary photovoltaic boxes 19 and the main photovoltaic box 20 are respectively affected by the photoelectric effect to perform photoelectric conversion, the electric telescopic rod 18 is started, and the included angles between the four groups of auxiliary photovoltaic boxes 19 and the main photovoltaic box 20 are adjusted by adjusting the length of the electric telescopic rod 18, so that the contact surfaces of the four groups of auxiliary photovoltaic boxes 19 and direct solar rays are maximized, and the photoelectric conversion efficiency of the photovoltaic power station is maximized;
s3, when the photovoltaic power station works and wind rises, the electronic switch 24 on the surface of the vent pipe 21 is turned on, so that external air flow enters the auxiliary photovoltaic box 19 and the main photovoltaic box 20, the miniature wind power generation equipment 22 is driven to perform wind power generation operation, and the power conversion effect of the photovoltaic power station is improved;
s4, when the electric heating furnace is in a high-temperature night environment, the servo motor 33 is started to drive the second socket joint piece 32 to move on the surface of the second ball screw 31, and further drive the sliding ring 29 to move along the surface of the long rod 30 until the rolling mechanism 35 is unfolded to completely cover the surface of the transparent top cover 28, so that the black cloth 36 can absorb heat maximally and transfer the heat to the thermoelectric conversion film 38 for thermoelectric conversion operation;
s5, when the photovoltaic power station is used, the blade 15 is used for shearing the plants protruding out of the surface of the top cover screen plate 8, and the plants are prevented from growing upwards while the water and soil stabilizing effect of the plants on the ground below is guaranteed;
wherein, in S3, the method specifically includes the following steps:
s31, when the wind power level is higher than 8, the electric telescopic rod 18 is shortened to drive the auxiliary photovoltaic box 19 in the expanded state to be in the folded state, and meanwhile, the lifting rod 5 is started to enable the movable rod 17 to descend, so that the overall gravity center height of the photovoltaic power station is reduced, and the stability in strong wind weather is kept;
s32, when the weather is windy and rainy, the humidity sensor 26 detects that the humidity value exceeds the safety threshold, and at this time, the electronic switch 24 is closed, so as to prevent external wind and rain from entering the interiors of the auxiliary photovoltaic box 19 and the main photovoltaic box 20 through the vent pipe 21, thereby protecting the power safety of the photovoltaic cell panel 23 and the micro wind power generation equipment 22 in the interiors of the auxiliary photovoltaic box 19 and the main photovoltaic box 20;
and S33, when the wind is in a windy and clear weather, the pressure sensor 27 detects that the wind power effect exists, the humidity sensor 26 detects that the humidity value of the air is in a normal state, and the electronic switch 24 is turned on at the moment, so that external wind power smoothly enters the auxiliary photovoltaic box 19 and the main photovoltaic box 20 to perform wind power generation operation.
In S3, the method specifically includes the following steps:
s51, after the plants take roots and germinate, the developed fibrous root systems extend and expand to the ground, so that the water and soil connection effect between the photovoltaic power station and the ground is enhanced, the water and soil loss is reduced, and the installation stability of the photovoltaic power station is enhanced;
s52, when plants grow upwards, the driving motor 10 is started regularly to drive the first ball screw 11 and the first sleeve piece 13 on the surface to move linearly, and further drive the blade 15 and the fan 14 at the bottom of the connecting plate 9 to move synchronously;
s53, in the moving process, the blade 15 cuts off the emerging plants, and meanwhile, the wind power blown by the fan 14 can blow off the cut plants and stem liquid on the surface of the blade 15, so that the cleanness of the surfaces of the top cover screen plate 8 and the blade 15 is ensured, and the plants are prevented from continuously growing upwards to interfere the main photoelectric box 20.
The working principle is as follows: before the photovoltaic power station is installed, the installation disc 1 is limited at a designated position by the aid of the inserting rods 2, the planting frame 6 and the installation disc 1 are installed in an embedded mode, then a culture soil layer 7 mixed with plant seeds is placed inside the planting frame 6, and a top cover screen plate 8 is covered;
after the photovoltaic power station is installed, the auxiliary photovoltaic boxes 19 and the main photovoltaic box 20 are respectively subjected to photoelectric conversion under the influence of photoelectric effect, the electric telescopic rod 18 is started, and the included angles between the four groups of auxiliary photovoltaic boxes 19 and the main photovoltaic box 20 are adjusted by adjusting the length of the electric telescopic rod 18, so that the contact surfaces of the four groups of auxiliary photovoltaic boxes 19 and direct solar rays are maximized, and the photoelectric conversion efficiency of the photovoltaic power station is maximized;
when the photovoltaic power station works and wind rises, the electronic switch 24 on the surface of the vent pipe 21 is turned on, so that external air flow enters the auxiliary photovoltaic box 19 and the main photovoltaic box 20, the miniature wind power generation equipment 22 is driven to perform wind power generation operation, and the power conversion utility of the photovoltaic power station is improved;
when the electric heating furnace is in a high-temperature night environment, the servo motor 33 is started to drive the second socket joint piece 32 to move on the surface of the second ball screw 31, and further drive the sliding ring 29 to move along the surface of the long rod 30 until the rolling mechanism 35 is unfolded to completely cover the surface of the transparent top cover 28, so that the black cloth 36 can absorb heat to the maximum extent and transfer the heat to the thermoelectric conversion film 38 for thermoelectric conversion operation;
in this photovoltaic power plant use, utilize blade 15 to cut the plant that emits the 8 surfaces of top cap otter board, when restraining the plant growth that makes progress, guarantee the plant and stabilize the effect to the soil and water on below ground.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides an economic photovoltaic power plant of high utilization, includes lifter (5), plants frame (6), electric telescopic handle (18) and assists photoelectric box (19), its characterized in that: the top of the lifting rod (5) is connected with a movable rod (17) in a sliding mode, the movable rod (17) is electrically connected with the lifting rod (5), and a main photoelectric box (20) is fixed to the top of the movable rod (17);
an electric telescopic rod (18) is mounted on the surface of the movable rod (17) through a shaft piece, an auxiliary photoelectric box (19) is connected to the tail end of the electric telescopic rod (18), the surface of the auxiliary photoelectric box (19) is movably connected with the surface of the main photoelectric box (20) through a hinge, transparent top covers (28) are mounted inside the auxiliary photoelectric box (19) and the main photoelectric box (20), and thermoelectric conversion mechanisms (16) are mounted on the inner walls of the transparent top covers (28);
the number of the auxiliary photoelectric boxes (19) is four.
2. A high-usage economical photovoltaic power plant as claimed in claim 1, characterized in that: the bottom of the lifting rod (5) is fixed with an installation disc (1), the surface of the installation disc (1) is embedded with a planting frame (6), the bottom of the planting frame (6) is provided with a bottom cover screen plate (12), a cultivation soil layer (7) is laid in the planting frame (6), the cultivation soil layer (7) is located on the top surface of the bottom cover screen plate (12), the top cover screen plate (8) is embedded with the top of the planting frame (6), the top of the top cover screen plate (8) is provided with a driving motor (10), the output end of the driving motor (10) is connected with a ball screw (11), the surface of the ball screw (11) is sleeved with a sleeve piece (13), the surface of the sleeve piece (13) is provided with a connecting plate (9), the bottom of the connecting plate (9) is provided with a fan (14) and a blade (15), and the blade (15) is positioned in front of the fan (14).
3. A high-usage economical photovoltaic power plant as claimed in claim 1, characterized in that: the thermoelectric conversion mechanism (16) comprises a sliding ring (29), a long rod (30), a second ball screw (31), a second sleeve piece (32), a servo motor (33), a fixing ring (34) and a winding mechanism (35), wherein the servo motor (33) is installed on the inner walls of the auxiliary photoelectric box (19) and the main photoelectric box (20), the output end of the servo motor (33) is connected with the second ball screw (31), the second sleeve piece (32) is sleeved on the surface of the second ball screw (31), the long rod (30) is connected on the surface of the servo motor (33), the auxiliary photoelectric box (19) and the inner wall of the main photoelectric box (20), the fixing ring (34) and the sliding ring (29) are installed on the surface of the long rod (30), the fixing ring (34) is located in the middle of the sliding ring (29) and the servo motor (33), the winding mechanism (35) is connected on the surfaces of the fixing ring (34) and the sliding ring (29), the second sleeve (32) is connected with the surface of the sliding ring (29) through a short rod.
4. A high-usage economical photovoltaic power plant as claimed in claim 1, characterized in that: it all installs miniature wind power generation equipment (22) and breather pipe (21) to assist the inside of photoelectricity box (19) and main photoelectricity box (20), and miniature wind power generation equipment (22) and breather pipe (21) interval arrangement, the surface mounting of breather pipe (21) has electronic switch (24), diaphragm (25) are installed to the inner wall of breather pipe (21), the bottom surface mounting of diaphragm (25) has humidity inductor (26) and pressure sensors (27), and pressure sensors (27) are located one side of humidity inductor (26).
5. A high-usage, economical photovoltaic power plant according to any of claims 1-4, characterized in that: the sliding ring (29) is connected with the long rod (30) in a sliding mode, the fixing ring (34) is fixedly connected with the surface of the long rod (30), and the long rod (30) on the surface of the servo motor (33) is positioned on the same plane with the long rod (30) connected with the auxiliary photoelectric box (19) and the inner wall of the main photoelectric box (20);
the section of the blade (15) is trapezoidal, the gradient of the blade (15) is gradually increased from front to back, the height of the fan (14) is greater than the height of the top surface of the blade (15), and the driving motor (10) is electrically connected with the fan (14);
the humidity sensor (26) and the pressure sensor (27) are electrically connected with the electronic switch (24);
the winding mechanism (35) comprises black cloth (36), a glue joint layer (37) and a thermoelectric conversion film (38), the glue joint layer (37) is installed at the top of the thermoelectric conversion film (38), and the black cloth (36) is glued to the top of the glue joint layer (37);
the number of the auxiliary photoelectric boxes (19) connected with the electric telescopic rods (18) in each group is two.
6. A high-usage economical photovoltaic power plant as claimed in claim 1, characterized in that: photovoltaic cell board (23) are all installed to the inside of assisting photoelectricity box (19) and main light photoelectricity box (20), one side surface mounting who keeps away from transparent top cap (28) of photovoltaic cell board (23) has the support, the tail end of support with assist photoelectricity box (19) and main light photoelectricity box (20) be close to the inner wall connection of movable rod (17).
7. A high-usage economical photovoltaic power plant as claimed in claim 1, characterized in that: the utility model discloses a mounting disc, including installation disc (1), installation disc, the inside of installation disc (1) runs through and installs inserted bar (2), the pointed cone piece is installed to the bottom of inserted bar (2), the top fixed mounting of inserted bar (2) has spacing dish (3), the inside of spacing dish (3) is equipped with the thread groove that runs through, and the bottom of thread groove runs through the inside that extends to inserted bar (2), the internally mounted of thread groove has connecting screw (4).
8. A high-usage economical photovoltaic power plant as claimed in claim 2, characterized in that: plant seeds with developed fibrous root systems are placed in the culture soil layer (7), and the mesh diameter of the top cover screen plate (8) is smaller than that of the bottom cover screen plate (12).
9. Use of a high-utilisation economical photovoltaic plant according to claims 1-8, characterised in that it comprises the following steps:
s1, before the photovoltaic power station is installed, after the installation disks (1) are limited at a designated position by the aid of the inserted rods (2), soil digging treatment is carried out on the ground enclosed by the four groups of installation disks (1), then the planting frame (6) is embedded with the installation disks (1) and is extruded downwards, the bottom of the planting frame (6) is located below the bottom of the installation disks (1), then a culture soil layer (7) mixed with plant seeds is placed inside the planting frame (6), and a top cover screen plate (8) is covered;
s2, after the photovoltaic conversion device is installed, the auxiliary photovoltaic boxes (19) and the main photovoltaic box (20) are respectively affected by photoelectric effects to perform photoelectric conversion, the electric telescopic rod (18) is started, and the included angles between the four groups of auxiliary photovoltaic boxes (19) and the main photovoltaic box (20) are adjusted by adjusting the length of the electric telescopic rod (18), so that the contact surfaces of the four groups of auxiliary photovoltaic boxes (19) and direct sunlight are maximized, and the photoelectric conversion efficiency of the photovoltaic power station is maximized;
s3, when the photovoltaic power station works and wind rises, the electronic switch (24) on the surface of the vent pipe (21) is turned on, so that external air flow enters the auxiliary photovoltaic box (19) and the main photovoltaic box (20), and the miniature wind power generation equipment (22) is driven to perform wind power generation operation, and the power conversion utility of the photovoltaic power station is improved;
s4, when the electric heating furnace is in a high-temperature night environment, the servo motor (33) is started to drive the second socket joint piece (32) to move on the surface of the second ball screw (31), and further drive the sliding ring (29) to move along the surface of the long rod (30) until the rolling mechanism (35) is unfolded to completely cover the surface of the transparent top cover (28), so that the black cloth (36) can absorb heat to the maximum extent and transfer the heat to the thermoelectric conversion film (38) for thermoelectric conversion operation;
s5, in the use process of the photovoltaic power station, the plants emerging from the surface of the top cover screen plate (8) are cut by the blade (15), and the plants are guaranteed to stabilize the soil and water on the ground below while the plants are inhibited from growing upwards;
wherein, in the S3, the method specifically includes the following working steps:
s31, when the wind power level is higher than 8, the electric telescopic rod (18) is shortened to drive the auxiliary photovoltaic box (19) in the expanded state to be in the folded state, and meanwhile, the lifting rod (5) is started to enable the movable rod (17) to descend, so that the overall gravity center height of the photovoltaic power station is reduced, and the stability in strong wind weather is maintained;
s32, when the weather is windy and rainy, the humidity sensor (26) detects that the humidity value exceeds a safety threshold, at the moment, the electronic switch (24) is closed, external wind and rain are prevented from entering the interiors of the auxiliary photoelectric box (19) and the main photoelectric box (20) through the vent pipe (21), and further the electric power safety of the photovoltaic cell panel (23) and the micro wind power generation equipment (22) in the auxiliary photoelectric box (19) and the main photoelectric box (20) is protected;
s33, when the wind is in a windy and clear weather, the pressure sensor (27) detects that the wind power effect exists, the humidity sensor (26) detects that the humidity value of the air is in a normal state, and the electronic switch (24) is turned on at the moment, so that external wind power smoothly enters the auxiliary photovoltaic box (19) and the main photovoltaic box (20) to perform wind power generation operation.
10. The method for using the high-utilization economical photovoltaic power plant as claimed in claim 9, wherein the step S3 specifically comprises the following steps:
s51, after the plants take roots and germinate, the developed fibrous root systems extend and expand to the ground, so that the water and soil connection effect between the photovoltaic power station and the ground is enhanced, the water and soil loss is reduced, and the installation stability of the photovoltaic power station is enhanced;
s52, when plants grow upwards, the driving motor (10) is started regularly to drive the ball screw (11) and the sleeve piece (13) on the surface to move linearly, and further drive the blade (15) at the bottom of the connecting plate (9) and the fan (14) to move synchronously;
s53, in the moving process, the blade (15) cuts off the emerged plants, and meanwhile, the wind power blown by the fan (14) can blow off the cut plants and stem liquid on the surface of the blade (15), so that the cleanness of the surfaces of the top cover screen plate (8) and the blade (15) is ensured, and the plants are prevented from continuously growing upwards to generate interference on the main photoelectric box (20).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115404797A (en) * | 2022-08-30 | 2022-11-29 | 枣庄高新区立正建筑工程有限公司 | Solar lighting equipment |
| WO2024104499A1 (en) * | 2022-11-14 | 2024-05-23 | 浙江水利水电学院 | New-energy irrigation pump truck |
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| WO2015164913A1 (en) * | 2014-05-02 | 2015-11-05 | Portagrid Systems Pty Ltd | Portable power station and array module attachment therefor |
| CN110661482A (en) * | 2019-09-29 | 2020-01-07 | 哈尔滨博觉科技有限公司 | Solar photovoltaic power generation system based on big data |
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| WO2015164913A1 (en) * | 2014-05-02 | 2015-11-05 | Portagrid Systems Pty Ltd | Portable power station and array module attachment therefor |
| CN110661482A (en) * | 2019-09-29 | 2020-01-07 | 哈尔滨博觉科技有限公司 | Solar photovoltaic power generation system based on big data |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115404797A (en) * | 2022-08-30 | 2022-11-29 | 枣庄高新区立正建筑工程有限公司 | Solar lighting equipment |
| CN115404797B (en) * | 2022-08-30 | 2024-05-31 | 枣庄高新区立正建筑工程有限公司 | Solar lighting equipment |
| WO2024104499A1 (en) * | 2022-11-14 | 2024-05-23 | 浙江水利水电学院 | New-energy irrigation pump truck |
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