Photovoltaic intelligent control water and fertilizer integrated fertilization device

By adopting a water and fertilizer integrated fertilization device made of glass fiber reinforced plastic and powered by photovoltaics, the problems of poor mobility, high energy consumption and limited applicability of existing fertilization equipment have been solved, realizing efficient and precise water and fertilizer management, and suitable for a variety of farmland environments.

CN121128408APending Publication Date: 2025-12-16ZAOQIANG YAXIN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202511401381.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-28
Publication Date
2025-12-16

AI Technical Summary

Technical Problem

Existing fertilization equipment suffers from poor mobility, susceptibility to corrosion, high energy consumption, limited applicability, and low precision, making it difficult to meet the needs of high-standard farmland construction.

Method used

The mixing box and connecting sections are made of glass fiber reinforced plastic and combined with photovoltaic power to achieve automated fertilization. Through the combination of liquid fertilizer mixing pump and delivery pump, water and fertilizer are controlled synchronously, which is suitable for a variety of irrigation systems and plot types.

Benefits of technology

It enables efficient fertilization in power-free environments, saving electricity, water, and fertilizer. It has wide applicability, precise control, reduces the probability of equipment blockage and the risk of seedling burn, and improves fertilizer utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of agricultural fertilization, and discloses a photovoltaic intelligent control water and fertilizer integrated fertilization device, which comprises: a mixing box which is a glass fiber reinforced plastic box body with an opening at the upper end and is used for providing a place for fertilizer mixing; the fixing frame is arranged on the side lower surface of the mixing box and is used for fixing the photovoltaic module; the photovoltaic module is arranged above the fixing frame and is used for providing energy for the whole device to work; the control assembly is arranged on the lower surface of the mixing box and is used for controlling the whole device to work; the glass fiber reinforced plastic connecting pipe nipple is used for being connected with an irrigation pipe network, and a connecting assembly is installed on the outer wall of the connecting pipe nipple and used for being connected with the irrigation pipe network. The photovoltaic assembly comprises a photovoltaic panel and a photovoltaic power generation controller. Through photovoltaic power supply, power-free scene operation, automatic fertilization and no need of personnel watching can be achieved, meanwhile, a connecting assembly is arranged to be connected with a farmland irrigation pipe network through a connecting short section, water flow is conveniently introduced to be mixed with fertilizer, and meanwhile, a liquid fertilizer mixing pump is arranged to assist in mixing of fertilizer in the mixing box and water.
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Description

Technical Field

[0001] This invention relates to the field of agricultural fertilization technology, specifically to a photovoltaic intelligent control integrated water and fertilizer fertilization device. Background Technology

[0002] In current agricultural production, integrated water and fertilizer technology is a key means to increase crop yield and save resources, but existing fertilization equipment has many shortcomings and is difficult to meet the needs of high-standard farmland construction.

[0003] Traditional metal fertilizer applicators: Made of metal, they are bulky, require tractor towing or fixed installation, have poor mobility, are susceptible to fertilizer corrosion, have a short lifespan, and use a 380V high-voltage motor, resulting in high energy consumption and requiring an external power source, making them unsuitable for environments without electricity.

[0004] Venturi fertilizer applicators rely on negative pressure water flow to absorb fertilizer, which reduces the water pressure in the pipeline network. They are greatly affected by water flow speed and pipeline pressure fluctuations, impacting the fertilization effect at the end of sprinkler and drip irrigation systems. The fertilizer absorption deviation can reach ±20%, requiring real-time manual monitoring and adjustment. They are also sensitive to fertilizer concentration, and undissolved particles can easily clog the equipment, requiring frequent disassembly and cleaning, resulting in high maintenance costs.

[0005] Water turbine fertilizer applicator: It uses water flow through the pipeline to drive a water turbine to apply fertilizer. It is only suitable for high-flow scenarios with water pressure ≥0.3MPa. It cannot be used in low-pressure areas such as mountainous areas and small, scattered plots. The amount of fertilizer applied varies with the water flow speed, making it difficult to control precisely. It is also suitable for a limited number of crop types. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a photovoltaic intelligent control integrated water and fertilizer application device. The mixing box is made of glass fiber reinforced plastic, which is corrosion-resistant, high-strength, anti-aging, and lightweight (1 / 4 the weight of steel). Its small size makes it suitable for electric tricycles. The connecting section is also made of glass fiber reinforced plastic, which is corrosion-resistant, high-strength, lightweight, and anti-aging. It is available in eight diameter specifications: 50, 63, 75, 90, 110, 125, 160, and 200 mm. The connecting section can be connected to the irrigation pipe via flexible hose, quick-connect fitting, or flange connection, facilitating easy installation and removal. It is compatible with various irrigation systems and land types, achieving energy savings of 90%–95%, water savings of 10%–35%, and fertilizer savings of 10%–30%, with fertilizer utilization increasing by over 20%. It is suitable for crop cultivation in various scenarios, including open fields, mountainous areas, and greenhouses, providing automatic fertilization without manual supervision and offering a low-cost solution for precision water and fertilizer management in high-standard farmland. It solves the problem that "the existing fertilization equipment has many shortcomings and is difficult to meet the needs of high-standard farmland construction".

[0007] A photovoltaic intelligent control integrated water and fertilizer application device, characterized in that it comprises:

[0008] A mixing box, which is an open box at the top, is used to provide a place for mixing fertilizers;

[0009] A mounting bracket, located on the lower side surface of the mixing box, is used to secure the photovoltaic modules.

[0010] Photovoltaic modules, mounted above the mounting frame, are used to provide energy for the overall installation.

[0011] The control components, located inside the protective enclosure, are used to control the operation of the entire device;

[0012] A connecting section is used to connect to an irrigation network. The outer wall of the connecting section is equipped with a connecting component for connecting to the irrigation network.

[0013] Preferred,

[0014] The photovoltaic module includes a photovoltaic panel, which is mounted on the upper surface of a fixed frame, and the upper end of the fixed frame is inclined.

[0015] Preferred,

[0016] The control assembly includes a protective enclosure mounted on the inner wall of the mixing tank.

[0017] Preferred,

[0018] The inner wall of the protective box is equipped with a liquid fertilizer delivery pump.

[0019] Preferred,

[0020] The inner wall of the mixing tank is equipped with a liquid fertilizer mixing pump.

[0021] Preferred,

[0022] The inlet ends of both the liquid fertilizer mixing pump and the liquid fertilizer delivery pump are located inside the mixing tank, and the outlet end of the liquid fertilizer delivery pump is connected to the connecting section via a fertilizer delivery pipe.

[0023] Preferred,

[0024] The inlet end of the liquid fertilizer transfer pump is equipped with a double-layer filter screen.

[0025] Preferred,

[0026] The drain end of the liquid fertilizer mixing pump is located inside the mixing tank and is equipped with a double-layer filter screen.

[0027] Preferred,

[0028] The inner wall of the protective box is equipped with a rechargeable battery, which is electrically connected to the photovoltaic panel via wires. The inner wall of the protective box is also equipped with a control element, which is electrically connected to the liquid fertilizer delivery pump via wires. The control element is connected to a sensor via a signal line, and the sensor is mounted on a connecting section.

[0029] Preferred,

[0030] The photovoltaic module also includes a charging controller that is interconnected with the photovoltaic panel, and the charging controller is electrically connected to the battery via wires.

[0031] This invention provides a photovoltaic intelligent control integrated water and fertilizer application device. It has the following beneficial effects:

[0032] 1. This invention enables operation in electricity-free environments through photovoltaic power supply. It is equipped with a connecting section for connection to farmland irrigation networks, a water intake gate for easy water introduction and fertilizer mixing, and a liquid fertilizer mixing pump to assist in mixing fertilizer and water inside the mixing tank, thereby improving fertilizer solubility and reducing the probability of clogging of the overall device. The overall device has good applicability, is not prone to clogging, and is convenient to use.

[0033] 2. By setting up control elements, the present invention can manage the remaining components in a unified manner. By detecting whether irrigation water flows through the connecting section, the liquid fertilizer delivery pump can be controlled to output liquid fertilizer when irrigation water flows through the connecting section, so as to realize the synchronous start and stop of irrigation and fertilization. This can ensure that water and fertilizer are synchronized, reduce the probability of seedling burn, and the whole device can achieve precise control.

[0034] 3. By adopting an integrated design, the overall size of the device is greatly reduced. In this way, the device can be moved by an electric tricycle or by manpower. Once it is moved to the work site, it only needs to be connected to the irrigation network of the work site to supply water and fertilizer, which makes the device more convenient to use. Attached Figure Description

[0035] Figure 1 This is a perspective view of the connecting section of the present invention;

[0036] Figure 2 This is a perspective view of the overall structure of the present invention;

[0037] Figure 3 This is a perspective view of the mixing box and connecting components of the present invention;

[0038] Figure 4 This is a cross-sectional schematic diagram of the mixing tank of the present invention;

[0039] Figure 5 This is a three-dimensional structural diagram of the photovoltaic module of the present invention;

[0040] Figure 6 This is a schematic diagram of the control flow of the present invention.

[0041] The components include: 1. Connecting section; 2. Mixing box; 3. Photovoltaic module; 31. Photovoltaic panel; 4. Control component; 41. Protective box; 42. Liquid fertilizer delivery pump; 43. Liquid fertilizer mixing pump; 45. Rechargeable battery; 46. Control element; 47. Sensor; 48. Double-layer filter screen; 49. Fertilizer delivery pipe; 5. Fixing frame; 6. Connecting component; 61. Water intake gate. Detailed Implementation

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Example:

[0044] Please see the appendix Figure 1 - Appendix Figure 6 This invention provides a photovoltaic intelligent control integrated water and fertilizer application device, including a mixing box 2, a photovoltaic module 3, a fixing frame 5, a control component 4, and a connecting section 1. The mixing box 2 and the connecting section 1 are made of glass fiber reinforced plastic, which has the effects of corrosion resistance, light weight, high strength, and aging resistance, achieving effects that metal and plastic materials cannot achieve. It is also easy to move; in daily use, the entire device can be moved using a tricycle or similar equipment. The mixing box 2 is an open-top box, providing a space for fertilizer mixing. The fixing frame 5 is located on the lower side surface of the mixing box 2, used to fix the photovoltaic module 3. The photovoltaic module 3 is located above the fixing frame 5, providing energy for the operation of the entire device. Device Power is supplied by photovoltaic module 3. If the device is in a dark place, the photovoltaic module 3 can be converted into 220 volts for charging. The control component 4 is set on the inner wall of the mixing box 2 and is used to control the operation of the whole device. The connecting short section 1 is used to connect to the irrigation network, and the connecting component 6 is also used to connect to the irrigation network. In this way, the irrigation network can be used to supply water to the device directly without the need for an additional water source. The diameter of the connecting short section 1 pipe is available in eight specifications: 50, 63, 75, 90, 110, 125, 160, and 200 mm. The connection methods between the connecting short section 1 and the irrigation pipe are flexible hose connection, quick connection, and flange connection. It is suitable for various irrigation methods such as sprinkler irrigation, micro-sprinkler irrigation, drip irrigation, and pipe irrigation.

[0045] Reference Figure 1 - Figure 3The photovoltaic module 3 includes a photovoltaic panel 31, which generates electricity when exposed to sunlight. The photovoltaic panel 31 is installed on the upper surface of the fixing frame 5. The upper end of the fixing frame 5 is inclined, which allows the photovoltaic panel 31 to better face the sunlight. With the photovoltaic panel 31, the whole device can operate in a power-free environment.

[0046] Reference Figure 2 , Figure 4 and Figure 5 The control assembly 4 includes a protective housing 41 for supporting the overall control assembly 4. The protective housing 41 is installed on the inner wall of the mixing tank 2. From left to right, a liquid fertilizer delivery pump 42 is installed on the inner wall of the protective housing 41, and a liquid fertilizer mixing pump 43 is installed on the inner wall of the mixing tank 2. The inlet ends of both the liquid fertilizer mixing pump 43 and the liquid fertilizer delivery pump 42 are located inside the mixing tank 2. The outlet end of the liquid fertilizer delivery pump 42 is connected to the connecting short section 1 through a fertilizer delivery pipe 49. The fertilizer delivery pipe 49 can be a wear-resistant and anti-aging flexible hose. Since the overall device adopts injection-type fertilization, there are no requirements for the pipeline pressure. The drain end of the liquid fertilizer mixing pump 43 is located inside the mixing tank 2. The liquid fertilizer mixing pump 43 can draw water from inside the mixing tank 2 and guide the fertilizer to mix with the water. The liquid fertilizer delivery pump 42 can guide the mixed liquid inside the mixing tank 2 into the connecting section 1, thus realizing the fertilization operation. The liquid fertilizer delivery pump 42 is a corrosion-resistant diaphragm pump. Its fertilization speed can be manually controlled by adjusting the liquid fertilizer flow control device, thus actively controlling the flow of fertilizer. This can realize automated fertilization without the need for special personnel to supervise, and can achieve the effects of saving electricity, fertilizer and water.

[0047] Reference Figure 2 , Figure 4 and Figure 5A rechargeable battery 45 is installed on the inner wall of the protective box 41. The rechargeable battery 45 is electrically connected to the photovoltaic panel 31 via wires. The rechargeable battery 45 is the power source of the equipment. A control element 46 is installed on the inner wall of the protective box 41. The control element 46 is electrically connected to the liquid fertilizer delivery pump 42 via wires. The control element 46 can control the operation or shutdown of the liquid fertilizer delivery pump 42. The control element 46 is connected to a sensor 47 for detecting water flow via a signal line. The sensor 47 is installed on the connecting section 1. The sensor 47 is a water flow sensor that can be used to detect whether there is water flowing through the connecting section 1 and transmit the result. The water is sent to the control element 46. A water intake valve 61 is installed on the connecting section 1. The water intake valve 61 can guide the water flow in the connecting section 1 into the interior of the mixing box 2. The photovoltaic module 3 also includes a charging controller 32 that is interconnected with the photovoltaic panel 31. The charging controller 32 is electrically connected to the battery through wires. A fertilizer pipe anti-leakage clamp is installed on the outer wall of the connecting section 1. The anti-leakage clamp adopts a double-layer sealing structure to achieve the anti-leakage effect. The front surface of the protective box 41 is equipped with a lithium battery power main switch, a liquid fertilizer flow controller, a mixing pump start / stop switch, a 220V charging socket, and a solar and 220V charging conversion switch.

[0048] Working principle: When using the whole device, it can be connected to the original irrigation network of the farmland through connecting section 1. After the connection is completed, open the water intake valve on the irrigation network connecting section 1 to introduce irrigation water into the mixing tank, start the mixing pump to let the water flow in the mixing tank, and then pour in the fertilizer. After the fertilizer has completely dissolved in the flow, turn off the mixing pump.

[0049] In terms of energy supply, the photovoltaic module 3 supplies power to the device, and the mounting frame 5 fixes the photovoltaic module 3.

[0050] When fertilization is carried out, when the sensor 47 detects that irrigation water is flowing through the irrigation network, it sends a judgment signal to the control element 46. The control element 46 then controls the liquid fertilizer delivery pump 42 to start. The liquid fertilizer delivery pump 42 draws the mixed water and fertilizer from the mixing tank 2 and delivers it to the irrigation network of the connecting section 1, so as to realize the synchronous supply of water and fertilizer. Throughout the process, the protective box 41 protects the internal liquid fertilizer delivery pump 42, rechargeable battery 45 and control element 46.

[0051] After fertilization is completed, open the water intake valve on irrigation pipeline connection section 1 to introduce irrigation water into the mixing tank, and clean the mixing pump and fertilizer pump with clean water.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic intelligent control integrated water and fertilizer application device, characterized in that, include, Mixing box (2), which is a box with an opening at the top, is used to provide a place for mixing fertilizer; A fixing bracket (5) is installed on the lower side surface of the mixing box (2) for fixing the photovoltaic module (3); Photovoltaic modules (3) are mounted above the mounting frame (5) to provide energy for the operation of the entire device; A control component (4) is located on the lower surface of the mixing chamber (2) and is used to control the operation of the entire device. A connecting section (1) is used to connect to the irrigation network. A connecting component (6) is installed on the outer wall of the connecting section (1). The connecting component (6) is used to connect to the irrigation network.

2. The photovoltaic intelligent control integrated water and fertilizer application device according to claim 1, characterized in that, The photovoltaic module (3) includes a photovoltaic panel (31), which is mounted on the upper surface of a fixing frame (5), and the upper end of the fixing frame (5) is inclined.

3. The photovoltaic intelligent control integrated water and fertilizer application device according to claim 1, characterized in that, The control component (4) includes a protective box (41) which is installed on the inner wall of the mixing box (2).

4. The photovoltaic intelligent control integrated water and fertilizer application device according to claim 3, characterized in that, The inner wall of the protective box (41) is equipped with a liquid fertilizer transfer pump (42), and the inner wall of the mixing box (2) is equipped with a liquid fertilizer mixing pump (43).

5. A photovoltaic intelligent control integrated water and fertilizer application device according to claim 4, characterized in that, The inlet ends of the liquid fertilizer mixing pump (43) and the liquid fertilizer delivery pump (42) are both connected inside the mixing tank (2), and the outlet end of the liquid fertilizer delivery pump (42) is connected to the connecting short section (1) through the fertilizer delivery pipe (49).

6. The photovoltaic intelligent control integrated water and fertilizer application device according to claim 5, characterized in that, The inlet ends of the liquid fertilizer transfer pump (42) and the mixing pump (43) are equipped with double-layer filter screens (48).

7. A photovoltaic intelligent control integrated water and fertilizer application device according to claim 6, characterized in that, The drain end of the liquid fertilizer mixing pump (43) is located inside the mixing tank (2).

8. A photovoltaic intelligent control integrated water and fertilizer application device according to claim 7, characterized in that, The inner wall of the protective box (41) is equipped with a rechargeable battery (45), which is electrically connected to the photovoltaic panel (31) via wires. The inner wall of the protective box (41) is equipped with a control element (46), which is electrically connected to the liquid fertilizer delivery pump (42) via wires. The control element (46) is connected to a sensor (47) via a signal line, and the sensor (47) is mounted on the connecting section (1).

9. A photovoltaic intelligent control integrated water and fertilizer application device according to claim 8, characterized in that, The photovoltaic module (3) also includes a charging controller (32) interconnected with the photovoltaic panel (31), and the charging controller (32) is electrically connected to the battery via wires.