Quantitative water supply device for liquid fertilizer production line
By adopting a quantitative water supply cylinder and servo motor system on the liquid fertilizer production line, the problem of fertilizer ratio deviation caused by water pressure fluctuations has been solved, achieving precise quantitative water supply and efficient water supply, adapting to the needs of continuous production lines, and improving the production efficiency and quality of liquid fertilizer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-13
AI Technical Summary
Liquid fertilizer production lines are susceptible to water pressure fluctuations when using traditional valves to regulate water volume, leading to fertilizer ratio deviations, frequent manual operations, and difficulty in adapting to the needs of continuous production lines, causing inconvenience to users.
It adopts a quantitative water supply cylinder and a servo motor system. The servo motor drives the rotating wheel and the sealing piston, and the solenoid valve controls the water flow to achieve quantitative water supply. After the water supply is completed, water is immediately added to ensure the accuracy and efficiency of water supply.
This technology enables quantitative water supply on liquid fertilizer production lines, improving water supply accuracy and efficiency, reducing the frequency of manual operations, adapting to the needs of continuous production lines, and improving the quality of liquid fertilizer.
Smart Images

Figure CN223991412U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of liquid fertilizer processing and batching equipment, specifically a quantitative water supply device for a liquid fertilizer production line. Background Technology
[0002] Liquid fertilizer is a general term for suspension fertilizers containing solid particles and anhydrous liquid ammonia. Liquid fertilizers do not require evaporation, drying, or granulation processes during production, and do not generate dust or fumes during production and use. The product does not absorb moisture or clump. However, traditional valves used to regulate water flow in liquid fertilizer production lines are susceptible to water pressure fluctuations, leading to fertilizer ratio deviations. Frequent manual operation is required, making it difficult to adapt to the needs of continuous production lines and causing inconvenience for users.
[0003] Therefore, it is necessary to modify it by setting up a metered water supply cylinder to directly supply water to the production line, ensuring that the water supply volume is the same. After the water supply is completed, the metered water supply cylinder should be refilled immediately to facilitate the next water supply and improve the accuracy and efficiency of water supply. Utility Model Content
[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a quantitative water supply device for a liquid fertilizer production line. This device directly supplies water to the production line via a quantitative water supply cylinder, ensuring a consistent water supply volume. After water supply is completed, the cylinder is immediately refilled for convenient subsequent supply, improving water supply accuracy and efficiency. This solution addresses the problems of traditional valve-based water volume regulation in liquid fertilizer production lines, which is susceptible to water pressure fluctuations, leading to fertilizer ratio deviations, frequent manual operation, and difficulty in adapting to continuous production line requirements, causing inconvenience for users.
[0005] This utility model provides the following technical solution: a quantitative water supply device for a liquid fertilizer production line, comprising a base plate, a support plate fixedly connected to the top of the base plate via a support plate, a through-hole circular groove on the right side of the top of the support plate, a quantitative water supply cylinder fixedly connected inside the groove, a sealing piston slidably connected to the lower part of the inner part of the quantitative water supply cylinder, a crank rod hinged to the bottom of the sealing piston, a servo motor fixedly connected to the bottom of the support plate via a support plate, a rotating wheel provided at the output end of the servo motor, a circular rod rotatably connected to the lower right side of the rotating wheel, the right end of the circular rod hinged to the bottom of the crank rod, and so on. The top of the metering water supply cylinder is fixedly connected to a top cover. A water supply pipe is connected to the right side of the top of the top cover. The output end of the water supply pipe is connected to a first solenoid valve. A water inlet pipe is connected to the left side of the top of the top cover. The input end of the water inlet pipe is connected to a second solenoid valve. A water storage tank is fixedly connected to the left side of the top of the support plate. A water inlet valve pipe is connected to the left side of the top of the water storage tank. A filter mechanism is connected to the lower right side of the water storage tank through a connecting pipe. The bottom of the filter mechanism is fixedly connected to the top of the support plate. A conveying pipe is connected to the right end of the filter mechanism. The top end of the conveying pipe is connected to the input end of the second solenoid valve.
[0006] The beneficial effects of this utility model are as follows:
[0007] 1. This utility model connects the inlet valve pipe to the factory's water supply pipeline, opens the inlet valve pipe to fill the device with water, filling the water tank, and simultaneously opens the first and second solenoid valves to allow water to fully enter the various pipes, filtration mechanisms, and metering water supply cylinders. The water pressure forces the air inside the device out through the output of the first solenoid valve. The device's airtightness is checked, and all internal air is completely expelled. Then, the output of the first solenoid valve is connected to the water inlet of the production line. A control system (not shown) is located on the back of the device. This control system controls the servo motor, the first solenoid valve, and the second solenoid valve. The servo motor drives the rotating wheel to rotate one revolution, and the crank and... As the sealing piston moves upward, the first solenoid valve opens and the second solenoid valve closes. The sealing piston forces water from inside the metering water supply cylinder to be supplied through the first solenoid valve. Then, the servo motor continues to drive the rotating wheel to rotate one revolution, causing the crank and sealing piston to move downward. When this happens, the first solenoid valve closes and the second solenoid valve opens, allowing water from the storage tank to enter the metering water supply cylinder through the filter mechanism, delivery pipe, and second solenoid valve. This process is repeated to provide metered water to the production line. This achieves the goal of directly supplying water to the production line by setting up a metering water supply cylinder, ensuring a consistent water supply. After water supply is completed, the metering water supply cylinder is immediately refilled for the next water supply, improving water supply accuracy and efficiency.
[0008] 2. This utility model is designed with a corresponding filter box, filter element and sealing cover. When the water in the water storage tank enters the metering water supply cylinder through the filter box, the water is filtered by the filter element to reduce impurities in the water and improve the quality of liquid fertilizer. At the same time, when the filter element has been used for a long time, the sealing cover can be removed from the front of the filter box by loosening the bolts, and the filter element can be pulled out from the inside of the filter box for cleaning or replacement. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model.
[0010] Figure 2 This is a schematic diagram of the right-side structure of this utility model.
[0011] Figure 3 This is a cross-sectional structural diagram of the present invention.
[0012] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the diagram.
[0013] Figure 5 This utility model Figure 3 A magnified structural diagram of B in the diagram.
[0014] Figure 6 This utility model Figure 3 A magnified structural diagram of C. Detailed Implementation
[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0016] like Figures 1 to 6As shown, the quantitative water supply device for the liquid fertilizer production line in this embodiment includes a base plate 1. A support plate 2 is fixedly connected to the top of the base plate 1 via a support plate. A through-hole circular groove is provided on the right side of the top of the support plate 2, and a quantitative water supply cylinder 3 is fixedly connected inside the groove. A sealing piston 4 is slidably connected to the lower part of the inside of the quantitative water supply cylinder 3. A crank rod 5 is hinged to the bottom of the sealing piston 4. A servo motor 6 is fixedly connected to the bottom of the support plate 2 via a support plate. A rotating wheel 7 is provided at the output end of the servo motor 6. A circular rod 8 is rotatably connected to the lower right side of the rotating wheel 7. The right end of the circular rod 8 is hinged to the bottom of the crank rod 5. A top cover 9 is fixedly connected to the top of the quantitative water supply cylinder 3. A water supply pipe 10 is connected to the right side of the top of the top cover 9. The output of the water supply pipe 10... The top of the cover 9 is connected to a first solenoid valve 11. The top left side of the top of the cover 9 is connected to a water inlet pipe 12. The input end of the water inlet pipe 12 is connected to a second solenoid valve 13. The top left side of the support plate 2 is fixedly connected to a water storage tank 14. The top left side of the water storage tank 14 is connected to a water inlet valve pipe. The top right side of the water storage tank 14 is connected to a balance valve. The balance valve is a mature existing technology. Its purpose is to maintain the internal pressure of the water storage tank 14 and avoid changes in the internal pressure of the water storage tank 14. The lower right side of the water storage tank 14 is connected to a filter mechanism 15 through a connecting pipe. The bottom of the filter mechanism 15 is fixedly connected to the top of the support plate 2. The right end of the filter mechanism 15 is connected to a delivery pipe 16. The top end of the delivery pipe 16 is connected to the input end of the second solenoid valve 13.
[0017] refer to Figure 1 and Figure 4 The filtration mechanism 15 includes a filter box 17 fixedly connected to the top of the support plate 2. The left side of the filter box 17 is connected to the water storage tank 14 through a connecting pipe, and the right side of the filter box 17 is connected to the left end of the delivery pipe 16. A filter element 18 is inserted inside the filter box 17. A sealing cover 19 is movably connected to the front of the filter box 17 through bolts. The back of the filter element 18 is attached to the rear side of the inner wall of the filter box 17, and the front of the filter element 18 is attached to the back of the sealing cover 19.
[0018] In this embodiment, by setting up a corresponding combination of filter box 17, filter element 18 and sealing cover 19, when the water inside the water storage tank 14 enters the metering water supply cylinder 3 through the filter box 17, the water is filtered by the filter element 18 to reduce impurities in the water and improve the quality of liquid fertilizer. At the same time, when the filter element 18 has been used for a long time, the sealing cover 19 can be removed from the front of the filter box 17 by loosening the bolts, and the filter element 18 can be pulled out from the inside of the filter box 17 for cleaning or replacement.
[0019] refer to Figure 5 A sealing ring 20 is fitted under the surface of both the water supply pipe 10 and the water inlet pipe 12. The surface of the sealing ring 20 is fixedly connected to the inner wall of the top cover 9. A sealing ring 21 is fixedly connected to the top of the inner wall of the top cover 9. The bottom of the sealing ring 21 is in contact with the top of the metering water supply cylinder 3.
[0020] In this embodiment, the sealing ring 20 is provided to seal the connection between the water supply pipe 10 and the water inlet pipe 12 and the top cover 9, thus preventing water leakage at the connection point during use and affecting the use of the device. The sealing ring 21 is provided to seal the connection between the top cover 9 and the metering water supply cylinder 3, further improving the airtightness of the device.
[0021] refer to Figure 1 The output end of the servo motor 6 is fixedly connected to the reducer 22, and the output end of the reducer 22 is fixedly connected to the left side of the rotating wheel 7.
[0022] In this embodiment, by setting the reducer 22, the torque of the servo motor 6 is effectively increased, making it more stable when driving the rotating wheel 7 to rotate. This avoids the situation where the rotating wheel 7 is subjected to excessive pressure during rotation, which would cause the servo motor 6 to be under high load and affect its service life.
[0023] refer to Figure 6 An arc-shaped support plate 23 located below the rotating wheel 7 is fixedly connected to the right side of the top of the base plate 1. An arc-shaped groove is provided on the top of the arc-shaped support plate 23, and a number of evenly distributed balls 24 are rolled inside the arc-shaped groove. The surface of the balls 24 is in contact with the outer surface of the rotating wheel 7.
[0024] In this embodiment, by setting the arc-shaped support plate 23 and the ball bearing 24 in a corresponding matching configuration, when the rotating wheel 7 rotates, its surface contacts the ball bearing 24, and the ball bearing 24 rolls. This provides support and stability to the rotating wheel 7 without affecting its normal use, thus preventing the rotating wheel 7 from swaying or tilting during use and affecting its normal operation.
[0025] refer to Figure 1 The water storage tank 14 has a water level observation slot on the front, and an explosion-proof transparent glass 25 is fixedly connected inside the water level observation slot. Sealing strips 26 are fixedly connected around the explosion-proof transparent glass 25, and the surface of the sealing strips 26 is fixedly connected to the inner wall of the water storage tank 14.
[0026] In this embodiment, by setting up explosion-proof transparent glass 25, users can intuitively observe how much water is left inside the water tank 14, making it convenient for users to add water in time and avoid the device running dry due to lack of water, which would affect its use. By setting up sealing strip 26, the contact surface between explosion-proof transparent glass 25 and water tank 14 is sealed, improving the sealing performance of the device.
[0027] This invention connects the inlet valve pipe to the factory's water supply pipeline, opens the inlet valve pipe to inject water into the device, filling the water storage tank. Simultaneously, the first solenoid valve 11 and the second solenoid valve 13 are opened, allowing water to fully enter the various pipes, the filter mechanism 15, and the metering water supply cylinder 3. The water pressure forces the air inside the device out through the output of the first solenoid valve 11. The device's airtightness is checked, and all internal air is completely expelled. Then, the output of the first solenoid valve 11 is connected to the water inlet of the production line. A control system (not shown) is located on the back of the device. This control system controls the servo motor 6, the first solenoid valve 11, and the second solenoid valve 13. The servo motor 6 drives the rotating wheel 7 to rotate one revolution, causing the crank rod 5 and the sealing piston 4 to... During the upward movement, the first solenoid valve 11 opens and the second solenoid valve 13 closes. The water inside the metering water supply cylinder 3 is squeezed through the sealing piston 4 and supplied by the first solenoid valve 11. Then, the servo motor 6 continues to drive the rotating wheel 7 to rotate one revolution. When the crank rod 5 and the sealing piston 4 move downward, the first solenoid valve 11 closes and the second solenoid valve 13 opens. The water inside the water storage tank 14 enters the metering water supply cylinder 3 through the filter mechanism 15, the delivery pipe 16, and the second solenoid valve 13. This process is repeated to provide metered water to the production line. This achieves the goal of directly supplying water to the production line by setting up the metering water supply cylinder 3, ensuring the same water supply volume. After the water supply is completed, the metering water supply cylinder 3 is immediately refilled to facilitate the next water supply, thereby improving the accuracy and efficiency of the water supply.
Claims
1. A liquid fertilizer production line quantitative water supply device comprising a base plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected with a bearing plate (2) through a support plate, a circular groove penetrating up and down is formed in the right side of the top of the bearing plate (2), and a quantitative water supply cylinder (3) is fixedly connected in the circular groove, a sealing piston (4) is slidably connected in the inside of the quantitative water supply cylinder (3), a crank rod (5) is hingedly connected to the bottom of the sealing piston (4), a servo motor (6) is fixedly connected to the bottom of the bearing plate (2) through a support plate, a rotating wheel (7) is arranged at the output end of the servo motor (6), a circular rod (8) is rotatably connected to the lower right side of the rotating wheel (7), the right end of the circular rod (8) is hingedly connected to the bottom of the crank rod (5), a top cover (9) is fixedly connected to the top of the quantitative water supply cylinder (3), a water supply pipe (10) is communicated with the right side of the top of the top cover (9), a first electromagnetic valve (11) is communicated with the output end of the water supply pipe (10), a water inlet pipe (12) is communicated with the left side of the top of the top cover (9), a second electromagnetic valve (13) is communicated with the input end of the water inlet pipe (12), a water storage tank (14) is fixedly connected to the left side of the top of the bearing plate (2), a water inlet valve pipe is communicated with the left side of the top of the water storage tank (14), a filtering mechanism (15) is communicated with the lower right side of the water storage tank (14) through a connecting pipe, the bottom of the filtering mechanism (15) is fixedly connected with the top of the bearing plate (2), and a conveying pipe (16) is communicated with the right end of the filtering mechanism (15). The top end of the conveying pipe (16) is communicated with the input end of the second electromagnetic valve (13).
2. The water supply device for liquid fertilizer production line according to claim 1, characterized in that: The filtering mechanism (15) comprises a filtering box (17) fixedly connected to the top of the bearing plate (2), the filtering box (17) is communicated with the water storage tank (14) through a connecting pipe on the left side, the right end of the conveying pipe (16) is communicated with the right side of the filtering box (17), a filter core (18) is inserted into the inside of the filtering box (17), a sealing cover (19) is movably connected to the front of the filtering box (17) through bolts, the back of the filter core (18) is attached to the rear side of the inner wall of the filtering box (17), and the front of the filter core (18) is attached to the back of the sealing cover (19).
3. The water supply device for liquid fertilizer production line according to claim 2, characterized in that: Sealing rings (20) are sleeved on the surfaces of the water supply pipe (10) and the water inlet pipe (12), the surfaces of the sealing rings (20) are fixedly connected with the inner wall of the top cover (9), a sealing ring (21) is fixedly connected to the top of the inner wall of the top cover (9), and the bottom of the sealing ring (21) is attached to the top of the quantitative water supply cylinder (3).
4. The water supply device for liquid fertilizer production line according to claim 3, characterized in that: A speed reducer (22) is fixedly connected to the output end of the servo motor (6), and the output end of the speed reducer (22) is fixedly connected with the left side of the rotating wheel (7).
5. The water supply device for liquid fertilizer production line according to claim 4, characterized in that: An arc-shaped supporting plate (23) located below the rotating wheel (7) is fixedly connected to the right side of the top of the bottom plate (1), an arc-shaped groove is formed in the top of the arc-shaped supporting plate (23), and a plurality of uniformly distributed rolling balls (24) are rollingly connected in the arc-shaped groove, and the surfaces of the rolling balls (24) are attached to the outer surface of the rotating wheel (7).
6. The water supply device for liquid fertilizer production line according to claim 5, characterized in that: The front of the water storage tank (14) is provided with a water level observation groove, and the inside of the water level observation groove is fixedly connected with an explosion-proof transparent glass (25), the periphery of the explosion-proof transparent glass (25) is fixedly connected with a sealing strip (26), and the surface of the sealing strip (26) is fixedly connected with the inner wall of the water storage tank (14).