Water and fertilizer integrated metering device

Abstract

The utility model relates to water and fertilizer machine technical field relates to a water and fertilizer integrated equipment, through the innovative internal space planning of the cabinet, the larger components such as water pump, filter tank are arranged in the bottom and the middle part of the cabinet, and the components such as metering pump are installed in the top, and the pipeline layout is optimized, so that all components are concentrated in a cabinet, compact structure, greatly reduce the overall land occupation area and space volume of equipment, overcome the defect that traditional equipment is dispersedly arranged and occupies large space. In addition, since each functional unit is integrated in a complete cabinet, an independent and integrated functional module is formed, so that the equipment does not need to be assembled and connected with pipeline on site, can be flexibly deployed in different scale agricultural irrigation scenes as a whole unit, is more convenient to carry and move, greatly improves the applicability and deployment efficiency of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of water and fertilizer machine technology, and in particular to a metering integrated water and fertilizer device. Background Technology

[0002] Integrated water and fertilizer management technology is an important technique for combining irrigation and fertilization in modern agriculture. By mixing water-soluble fertilizers with irrigation water in a specific ratio and delivering them to the crop roots, it can significantly improve water and fertilizer utilization efficiency, achieving precision fertilization and water-saving yield increases. Currently, common traditional integrated water and fertilizer management systems typically consist of water pumps, metering pumps, filtration devices, and control systems. These devices are mostly arranged in a decentralized manner, meaning that each component is installed independently and connected by pipelines.

[0003] Such existing technologies result in loose equipment layouts, occupy a large amount of space, and are not conducive to space utilization in intensive agricultural scenarios, especially when deployed in large-scale greenhouses or field plots, where they have poor flexibility and adaptability. Secondly, due to the dispersed components, the installation and maintenance process is complex and requires farmers to have high professional operating skills. Furthermore, traditional systems usually lack integrated control and protection mechanisms, have complex operating interfaces, low response efficiency in emergency situations, and are prone to equipment damage or inaccurate water and fertilizer ratios due to misoperation, affecting irrigation and fertilization effects. Utility Model Content

[0004] The purpose of this utility model is to provide a metering water and fertilizer integrated device to save space and facilitate flexible deployment.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a metering water and fertilizer integrated device, including a cabinet, wherein the cabinet is equipped with a first water pump, a second water pump, a first metering pump, a second metering pump, a first filter tank, a second filter tank, a water inlet pipe, a first feed pipe, a second feed pipe, and a water and fertilizer output pipe; the water inlet pipe, the first water pump, and the second water pump are all located at the bottom of the cabinet, and the water inlet pipe is connected to the first water pump and the second water pump; the output end of the first water pump is connected to the first filter tank, and the output end of the first filter tank is connected to the water and fertilizer output pipe; the output end of the second water pump is connected to the second filter tank, and the... The output end of the second filter tank is connected to the water and fertilizer output pipe, which is located at the bottom of the cabinet. The first and second filter tanks are located in the middle of the cabinet. The first feed pipe is connected to the first metering pump for inputting fertilizer, and the second feed pipe is connected to the second metering pump for inputting fertilizer. The first and second metering pumps are both installed at the top of the cabinet. The output ends of the first and second metering pumps are respectively connected to a fertilizer output main pipe through a fertilizer output branch pipe. The fertilizer output branch pipe is installed at the top of the cabinet, and one end of the fertilizer output main pipe extends vertically downward to connect to the water and fertilizer output pipe.

[0006] Preferably, the water inlet pipe and the water-fertilizer output pipe are arranged in parallel on the front side of the bottom of the cabinet, and both have openings at their respective ends. The first feed pipe and the second feed pipe are respectively arranged on both sides of the bottom of the cabinet. A baffle is detachably installed on the bottom front side of the side walls of the cabinet. By removing one of the baffles, the openings of the water inlet pipe and the water-fertilizer output pipe on that side, as well as the opening of the feed pipe on that side, can be exposed.

[0007] More preferably, the output ends of the first water pump and the second water pump are respectively connected to the corresponding first feed pipe and the second feed pipe through the first bypass pipe and the second bypass pipe. The first bypass pipe and the second bypass pipe are each equipped with a bypass pipe valve, and the first feed pipe and the second feed pipe are each equipped with a feed valve. By closing the feed valve and opening the bypass valve, the first water pump and the second water pump can supply water to the first metering pump and the second metering pump respectively, so as to discharge the air in the first metering pump and the second metering pump.

[0008] More preferably, the fertilizer output branch pipe is equipped with a one-way valve to prevent fluid and gas from flowing back to the corresponding metering pump.

[0009] More preferably, the cabinet is a square cabinet with openable cabinet doors on both sides. The front and rear sides of the cabinet are respectively provided with transparent and openable front and rear covers by hinges. The upper rear side of the cabinet is provided with a fixing plate for arranging the operation panel. Opening the rear cover can expose the fixing plate.

[0010] More preferably, the bottom of the cabinet is provided with four casters.

[0011] Compared to existing technologies, this invention utilizes innovative internal cabinet space planning, placing larger components such as water pumps and filter tanks at the bottom and middle of the cabinet, while mounting components like metering pumps at the top. It also optimizes the piping layout, allowing all components to be housed within a single cabinet. This compact structure significantly reduces the overall footprint and volume of the equipment, overcoming the shortcomings of traditional equipment's dispersed layout and large space requirements. Furthermore, since each functional unit is integrated into a complete cabinet, forming an independent, integrated functional module, the equipment eliminates the need for complex on-site assembly and piping connections. It can be flexibly deployed as a single unit in agricultural irrigation scenarios of varying scales, making handling and relocation more convenient and greatly improving the equipment's applicability and deployment efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the internal structure of the cabinet in the embodiment;

[0013] Figure 2 This is a schematic diagram of the external structure of the cabinet in the embodiment;

[0014] Figure 3 This is a schematic diagram of the cabinet when the rear cover is opened in the embodiment.

[0015] Figure 4 This is a schematic diagram of the overall framework when the device is used in the embodiment.

[0016] In the picture:

[0017] 1. Cabinet; 2. First water pump; 3. Second water pump; 4. First metering pump; 5. Second metering pump; 6. First filter tank; 7. Second filter tank; 8. Water inlet pipe; 9. First feed pipe; 10. Second feed pipe; 11. Water and fertilizer output pipe; 12. Fertilizer output branch pipe; 13. Fertilizer output main pipe; 14. Baffle; 15. First bypass pipe; 16. Second bypass pipe; 17. Bypass valve; 18. Feed valve; 19. Check valve; 20. Cabinet door; 21. Front cover plate; 22. Casters; 23. Fixing plate. Detailed Implementation

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0019] It should be noted in advance that, in this utility model, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, in this utility model, unless otherwise explicitly specified and limited, "on" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features not in direct contact but through another feature between them.

[0020] like Figures 1 to 3As shown, the integrated water and fertilizer metering equipment includes a cabinet 1. Inside the cabinet 1 are a first water pump 2, a second water pump 3, a first metering pump 4, a second metering pump 5, a first filter tank 6, a second filter tank 7, an inlet pipe 8, a first feed pipe 9, a second feed pipe 10, and a water and fertilizer output pipe 11. The inlet pipe 8, the first water pump 2, and the second water pump 3 are all located at the bottom of the cabinet 1. The inlet pipe 8 is connected to the first water pump 2 and the second water pump 3. The output end of the first water pump 2 is connected to the first filter tank 6, and the output end of the first filter tank 6 is connected to the water and fertilizer output pipe 11. The output end of the second water pump 3 is connected to the second filter tank 7, and the output end of the second filter tank 7 is connected to... The water and fertilizer output pipe 11 is located at the bottom of the cabinet 1. The first filter tank 6 and the second filter tank 7 are located in the middle of the cabinet 1. The first feed pipe 9 is connected to the first metering pump 4 for inputting fertilizer, and the second feed pipe 10 is connected to the second metering pump 5 for inputting fertilizer. The first metering pump 4 and the second metering pump 5 are both installed at the top of the cabinet 1. The output ends of the first metering pump 4 and the second metering pump 5 are respectively connected to a fertilizer output main pipe 13 through a fertilizer output branch pipe 12. The fertilizer output branch pipe 12 is installed at the top of the cabinet 1, and one end of the fertilizer output main pipe 13 extends vertically downward to connect to the water and fertilizer output pipe 11.

[0021] In the aforementioned cabinet 1, the water inlet pipe 8 and the water-fertilizer outlet pipe 11 are arranged parallel to each other on the front side of the bottom of the cabinet 1, and both have ports at their respective ends. The first feed pipe 9 and the second feed pipe 10 are respectively arranged on both sides of the bottom of the cabinet 1. A baffle 14 is detachably installed on the front bottom of each of the two side walls of the cabinet 1. By removing one of the baffles 14, the ports of the water inlet pipe 8 and the water-fertilizer outlet pipe 11 on that side, as well as the port of the feed pipe on that side, can be exposed. By concentrating the water inlet and outlet pipes on the front side of the cabinet and equipping them with detachable baffles 14, quick and convenient pipe connection and maintenance are achieved. Removing a baffle 14 on one side can simultaneously expose all interfaces (water inlet, water outlet, feed) on that side, greatly simplifying installation, connection, and maintenance operations, saving time and manpower, while maintaining the overall neatness and protection of the cabinet. This is similar to an indoor air conditioner, where either side of the baffle can be removed for pipe connection according to installation needs.

[0022] In this embodiment, the output ends of the first water pump 2 and the second water pump 3 are respectively connected to the corresponding first feed pipe 9 and second feed pipe 10 through the first bypass pipe 15 and the second bypass pipe 16. Both the first bypass pipe 15 and the second bypass pipe 16 are equipped with bypass valves 17, and both the first feed pipe 9 and the second feed pipe 10 are equipped with feed valves 18. Closing the feed valve 18 and opening the bypass valve 17 allows the first water pump 2 and the second water pump 3 to supply water to the first metering pump 4 and the second metering pump 5 respectively, in order to expel air from the first metering pump 4 and the second metering pump 5. The fertilizer output branch pipe 12 is equipped with a one-way valve 19 to prevent fluid and gas from flowing back to the corresponding metering pump. By setting a bypass pipeline with valves, the metering pump can be quickly and conveniently vented before operation, effectively preventing cavitation, inaccurate metering, or malfunction caused by air remaining in the pump body. This significantly improves the operational reliability and fertilization accuracy of the equipment. Furthermore, this venting operation does not require disassembly of components; it is integrated within the equipment, making maintenance simple and efficient.

[0023] The first water pump 2 and the second water pump 3 mentioned above are preferably horizontal multistage centrifugal pumps from the Leo brand, with a rated power of 2.2kW, a rated head of 42.5m, a rated flow rate of 12m³ / h, a rated voltage of three-phase 380V-50Hz, and a rated speed of 2850r / min. In this embodiment, a variable frequency control unit can be configured for each of the first water pump 2 and the second water pump 3. One of the core functions of this variable frequency control unit is voltage conversion. Its input is common single-phase 220V, 50Hz mains power, and its output is three-phase AC power suitable for the water pump motor. Through variable frequency speed regulation technology, the system can perform independent and precise closed-loop control of each water pump. In this way, the power requirements of the equipment are reduced from professional three-phase 380V industrial power to ordinary single-phase 220V domestic power, enabling farmers, greenhouses, mountain orchards, and other scenarios with only single-phase power to deploy and use this irrigation equipment without obstacles, greatly expanding the applicability of the equipment. Furthermore, under variable frequency drive, the pump motor can be soft-started and soft-stopped, and can operate at speeds other than its rated speed, avoiding the high current impact and energy waste of direct starting at power frequency. Ultimately, at a power level of 2.2kW, it efficiently achieves a high-performance output of 12m³ / h flow rate and 42.5m head, achieving excellent results with low power consumption, high flow rate, and high head. Moreover, the variable frequency control units of the two pumps are independent of each other, forming a one-to-one constant pressure control system. This allows the system to monitor the pipeline pressure in real time and automatically adjust the speed of each pump, thus maintaining the system water pressure at a stable set value. This ensures that even when multiple irrigation zones operate alternately or simultaneously, causing flow rate changes, the output pressure of the entire system remains constant, ensuring the accuracy of water and fertilizer ratios and the uniformity of irrigation, thereby comprehensively achieving water-saving, fertilizer-saving, and energy-saving effects.

[0024] The cabinet 1 is a square cabinet with openable cabinet doors 20 on both sides. A transparent, openable front cover 21 and a rear cover 21 are hinged to the front and rear sides of the cabinet 1, respectively. A mounting plate 23 for the operation panel is located on the upper rear side inside the cabinet 1; opening the rear cover exposes the mounting plate 23. By providing multiple openable structures with different functions on multiple sides, the cabinet doors 20 are easy to maintain daily, the transparent front cover 21 facilitates real-time observation of the operating status, and the upper rear cover is dedicated to centralized debugging and maintenance of control components such as the operation panel, greatly improving the operability and maintainability of the equipment.

[0025] In addition, the bottom of the cabinet 1 is equipped with four casters 22, making the entire integrated equipment a flexible and movable unit. This greatly enhances the mobility and deployment flexibility of the equipment, making it easy for users to quickly move and locate between different irrigation areas. It saves the manpower and time costs required for transportation, and fully demonstrates the convenience advantages brought by the intensive and modular design of this utility model.

[0026] The metering water and fertilizer integration equipment provided in the above embodiments can be used in conjunction with existing fertilizer supply equipment to form a complete system, such as... Figure 4 As shown in the diagram, water supply can be provided using a water replenishment device, or various outdoor water sources can be collected based on local needs. After filtration through the device's filter tank, the water can meet usage requirements. This eliminates the need for tap water or clean well water in remote areas; purified wild water can be used for irrigation, greatly simplifying usage and saving costs. The filter tank can be a commercially available product, with a removable and washable filter element for easy reuse and cost savings. Furthermore, since only one side of the baffle 14 needs to be opened to connect the pipeline, the other side of the baffle 14 is in a closed state. Therefore, the inlet of the water pipe 8 and the water-fertilizer output pipe 11 on the other side can be sealed with matching pipe caps, and the feed valve 18 of the feed pipe on the other side can also be closed (when a sufficient amount of fertilizer is required, both feed valves 18 can be opened and each connected to a fertilizer supply device). In this embodiment, it is assumed that each feed pipe on both sides is connected to a fertilizer supply device, and the two external fertilizer conveying pipelines can extend from the opening of the baffle on the same side and be connected to the first feed pipe 9 and the second feed pipe 10 respectively.

[0027] Before operation, to ensure accurate operation of the metering pumps, an air purging operation can be performed after initial use or fertilizer replacement. This is done by closing the feed valve 18 on the first feed pipe 9 and the second feed pipe 10, and opening the bypass valve 17 on the first bypass pipe 15 and the second bypass pipe 16. Starting both water pumps will allow water to flow through the bypass into the inlets of the two metering pumps, purging the air. After this is complete, the valves should be returned to their open / closed positions.

[0028] During operation, the equipment can be started after setting parameters such as water-fertilizer ratio and flow rate via the control panel inside the upper rear cover 22 of the cabinet 1. After being set by the manufacturer or professionals, the control panel can be equipped with several simple buttons, such as start, emergency stop, and watering-only, for easy operation by farmers. After startup, external water enters through the inlet pipe 8, is drawn in and pressurized by the first water pump 2 and the second water pump 3, and then pumped into the first filter tank 6 and the second filter tank 7 for filtration. The filtered clean irrigation water eventually flows into the water-fertilizer output pipe 11 at the bottom. Meanwhile, external liquid fertilizer is precisely drawn in by the first metering pump 4 and the second metering pump 5 through the first feed pipe 9 and the second feed pipe 10, and pumped into the fertilizer output main pipe 13, then downwards into the water-fertilizer output pipe 11. In the water-fertilizer output pipe 11, the irrigation water and liquid fertilizer are thoroughly mixed to form a water-fertilizer mixture, which is finally output to the field irrigation system. The entire process is highly automated and simple to operate. Based on this, an irrigation pipe can be installed externally to connect with the water and fertilizer output pipe 11. The irrigation output pipe 11 can also be equipped with a section of pipe with an internal spiral channel to allow the water and fertilizer in the pipe to flow along a spiral path for a certain distance, thereby reducing the problem of water and fertilizer crystallization.

[0029] The control program required to achieve the above working state can be easily implemented by those skilled in the art as needed, and it is not an improvement of this utility model. The improvement of this utility model lies in arranging these components in the entire cabinet to achieve a compact effect, so the control program will not be described in detail.

[0030] This utility model, through a highly integrated design, integrates the water pumps, metering pumps, filter tanks, pipelines, and control systems (as in traditional water and fertilizer systems) that are distributed separately. Figure 4 The components within the dashed box (as shown in the image) are all integrated into a square cabinet with optimized space layout. During operation, the water pump draws in external water, filters it through a filter tank, and pumps it into the output pipe. Simultaneously, the metering pump precisely draws in fertilizer and injects it into the same output pipe, achieving uniform mixing of water and fertilizer within the pipeline, ultimately completing precise proportioning and delivery.

[0031] By optimizing the layout, this metering water and fertilizer integrated equipment greatly reduces the equipment's footprint and achieves intensive deployment. Its compact structure solves the pain point of low space utilization in traditional systems. Furthermore, through detachable baffles, multi-directional door design, and universal wheel structure, it enables rapid connection of pipelines, convenient maintenance of internal components, and flexible movement of the entire machine, significantly improving the equipment's operability, maintainability, and adaptability to various scenarios. It is especially suitable for modern irrigation scenarios with high requirements for space and mobility.

[0032] To facilitate understanding by those skilled in the art of the improvements of this utility model compared to the prior art, some of the accompanying drawings and descriptions of this utility model have been simplified. The above embodiments are preferred implementations of this utility model. In addition, this utility model can be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A metering and fertigation integrated equipment, characterized in that: Includes a cabinet (1), inside which are installed a first water pump (2), a second water pump (3), a first metering pump (4), a second metering pump (5), a first filter tank (6), a second filter tank (7), a water inlet pipe (8), a first feed pipe (9), a second feed pipe (10), and a water and fertilizer output pipe (11); The water inlet pipe (8), the first water pump (2) and the second water pump (3) are all located at the bottom of the cabinet (1), and the water inlet pipe (8) is connected to the first water pump (2) and the second water pump (3); The output end of the first water pump (2) is connected to the first filter tank (6), and the output end of the first filter tank (6) is connected to the water and fertilizer output pipe (11); the output end of the second water pump (3) is connected to the second filter tank (7), and the output end of the second filter tank (7) is connected to the water and fertilizer output pipe (11). The water and fertilizer output pipe (11) is located at the bottom of the cabinet (1), and the first filter tank (6) and the second filter tank (7) are located in the middle of the cabinet (1). The first feed pipe (9) is connected to the first metering pump (4) for inputting fertilizer, and the second feed pipe (10) is connected to the second metering pump (5) for inputting fertilizer. The first metering pump (4) and the second metering pump (5) are both installed on the top of the cabinet (1). The output end of the first metering pump (4) and the output end of the second metering pump (5) are respectively connected to a fertilizer output main pipe (13) through a fertilizer output branch pipe (12). The fertilizer output branch pipe (12) is installed on the top of the cabinet (1), and one end of the fertilizer output main pipe (13) extends vertically downward to connect to the water and fertilizer output pipe (11).

2. The integrated water and fertilizer metering equipment according to claim 1, characterized in that: The water inlet pipe (8) and the water and fertilizer output pipe (11) are arranged in parallel on the front side of the bottom of the cabinet (1), and both have pipe openings at their respective ends. The first feed pipe (9) and the second feed pipe (10) are respectively arranged on both sides of the bottom of the cabinet (1). A baffle (14) is detachably installed on the front side of the bottom of the two side walls of the cabinet (1). By removing one of the baffles (14), the pipe openings of the water inlet pipe (8) and the water and fertilizer output pipe (11) on that side, as well as the pipe opening of the feed pipe on that side, can be exposed.

3. The integrated water and fertilizer metering equipment according to claim 1, characterized in that: The output ends of the first water pump (2) and the second water pump (3) are respectively connected to the corresponding first feed pipe (9) and second feed pipe (10) through the first bypass pipe (15) and the second bypass pipe (16). The first bypass pipe (15) and the second bypass pipe (16) are both equipped with bypass valves (17). The first feed pipe (9) and the second feed pipe (10) are both equipped with feed valves (18). By closing the feed valve (18) and opening the bypass valve (17), the first water pump (2) and the second water pump (3) can respectively supply water to the first metering pump (4) and the second metering pump (5) to discharge the air in the first metering pump (4) and the second metering pump (5).

4. The integrated water and fertilizer metering equipment according to claim 3, characterized in that: The fertilizer output branch pipe (12) is equipped with a one-way valve (19) to prevent fluid and gas from flowing back to the corresponding metering pump.

5. The integrated water and fertilizer metering equipment according to claim 1, characterized in that: The cabinet (1) is a square cabinet. The cabinet (1) has openable cabinet doors (20) on both sides. The front and rear sides of the cabinet (1) are respectively connected by hinges and have a transparent and openable front cover (21) and a rear cover. The upper rear side of the cabinet (1) is provided with a fixing plate (23) for arranging the operation panel. The fixing plate (23) can be exposed by opening the rear cover.

6. The integrated water and fertilizer metering equipment according to claim 1, characterized in that: The bottom of the cabinet (1) is equipped with four casters (22).

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