Water and fertilizer integrated application system for greenhouse
By designing a greenhouse water and fertilizer integrated application system, the problems of cumbersome operation and the impact of low winter watering on crop growth have been solved. It has achieved uniform fertilization and water temperature control, improved fertilization efficiency and crop growth rate, and saved water.
Patent Information
- Application Number
- CN202520440239.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing integrated water and fertilizer equipment for greenhouses is cumbersome to operate, and the low temperature of winter watering affects crop growth, resulting in a slower growth rate.
A greenhouse water and fertilizer integrated application system was designed, which includes a water supply tank, a fertilizer solution tank, a heating tank, and drip irrigation pipes. The fertilizer is mixed by a stirrer, the water temperature is heated by the heating tank, and the fertilizer is applied evenly through the drip irrigation pipes. A temperature probe is set to control the water temperature.
It achieves uniform mixing and heating of fertilizers, reduces the impact of cold water on crops in winter, improves fertilization efficiency and crop growth rate, and saves water consumption.
Smart Images

Figure CN223816605U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of greenhouse water and fertilizer supply equipment, specifically a greenhouse water and fertilizer integrated application system. Background Technology
[0002] A greenhouse is a specially constructed agricultural facility that regulates internal temperature, humidity, and light conditions to provide a suitable growing environment for crops. It not only extends the growing season, enabling year-round production, but also improves crop yield and quality, while effectively preventing the impact of pests, diseases, and adverse weather. Greenhouses are widely used in vegetable and flower cultivation and seedling raising, and are an important tool in modern agricultural production. Existing greenhouses often use integrated water and fertilizer systems for water and fertilizer application. However, these systems have small water tanks, requiring multiple tanks of water for each application, and fertilizer needs to be added with each application, making the operation cumbersome. Furthermore, greenhouses are mostly used in winter, when water temperatures are low. Directly watering crops in the greenhouse at low temperatures can slow their growth, and watering with cold water can lower the greenhouse temperature, negatively impacting crop growth. Therefore, there is a need to develop a new type of integrated water and fertilizer application system for greenhouses that can evenly add fertilizer to the water and heat the water. Utility Model Content
[0003] To address the above technical problems, this utility model provides a greenhouse water and fertilizer integrated application system.
[0004] To solve the above technical problems, the technical solution adopted by this utility model is as follows: a greenhouse water and fertilizer integrated application system, including a water supply tank, an inlet pipe fixedly connected to the top of the water supply tank, an outlet pipe fixedly connected to the bottom of the water supply tank, a water pump fixedly connected to the end of the outlet pipe, the outlet end of the water pump connected to a main water pipe, a hollow agitator rotatably connected inside the water supply tank, a hollow bearing fixedly connected to the top of the water supply tank, the top of the hollow agitator rotatably connected to the hollow bearing, a fertilizer inlet pipe connected to the top of the hollow bearing, and a fertilizer liquid tank, a fertilizer discharge pipe fixedly connected to the bottom of the fertilizer liquid tank, a liquid pump connected to the end of the fertilizer discharge pipe, the outlet end of the liquid pump connected to the fertilizer inlet pipe via a flexible hose, a fertilizer channel opened inside the hollow agitator, the fertilizer channel connected to the agitator paddle of the hollow agitator, several fertilizer discharge pipes opened at the end of the agitator paddle, a heating box fixedly connected to the main water pipe, and a heating tube installed inside the heating box.
[0005] Furthermore, the main water pipe is connected to an application pipe, and the application pipe is connected to several drip irrigation pipes, with several drip irrigation holes opened on the drip irrigation pipes.
[0006] Furthermore, a stirring motor is fixedly connected to the bottom of the water supply tank, and the rotating shaft of the stirring motor passes through the tank wall of the water supply tank and is fixedly connected to the hollow stirrer.
[0007] Furthermore, a drain pipe is connected to the bottom of the water supply tank, a valve is installed on the drain pipe, and a first bracket is fixedly connected to the bottom of the water supply tank.
[0008] Furthermore, the top of the fertilizer tank is connected to a fertilizer inlet, and the bottom is fixedly connected to a second bracket.
[0009] Furthermore, a first temperature probe is installed in the main water pipe in front of the heating box, and a second temperature probe is installed in the main water pipe behind the heating box.
[0010] This utility model has the following advantages compared with the prior art:
[0011] 1. This utility model is equipped with a fertilizer solution tank, which allows fertilizer solution to be added to the water supply tank continuously, facilitating continuous watering. A hollow mixer is installed to stir and mix the fertilizer solution while it is being added, accelerating the mixing rate and making the fertilization more uniform. A heating box is also installed to heat the water when the water temperature is low, which can reduce the cooling effect of cold water on the greenhouse and avoid the impact of cold water on crops.
[0012] 2. This utility model is equipped with a drip irrigation pipe, which can effectively save water by watering crops.
[0013] 3. This utility model is equipped with a temperature probe, which can detect water temperature and prevent excessively high water temperature from damaging crops. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the water supply tank structure of this utility model.
[0016] Figure 3 This is a schematic diagram of the hollow agitator structure of this utility model.
[0017] Figure 4 This is a schematic diagram of the heating box structure of this utility model.
[0018] The components are as follows: 1. Water supply tank, 2. Fertilizer solution tank, 3. Heating tank, 4. Main water pipe, 5. Application pipe, 6. Drip irrigation pipe, 7. Hollow mixer, 8. Hollow bearing, 9. Inlet pipe, 10. Liquid pump, 11. Hose, 12. Water pump, 13. Heating pipe, 14. Drip irrigation hole, 15. Fertilizer inlet pipe, 16. Outlet pipe, 17. First support, 18. Mixing motor, 19. Drain pipe, 20. Fertilizer solution outlet, 21. Fertilizer discharge pipe, 22. Second support, 23. Fertilizer channel, 24. Fertilizer discharge hole, 25. First temperature probe, 26. Second temperature probe. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings.
[0020] like Figures 1-4 The greenhouse water and fertilizer integrated application system shown includes a water supply tank 1. An inlet pipe 9 is fixedly connected to the top of the water supply tank 1, and an outlet pipe 16 is fixedly connected to the bottom. A water pump 12 is fixedly connected to the end of the outlet pipe 16, and the outlet of the water pump 12 is connected to a main water pipe 4. A hollow agitator 7 is rotatably connected inside the water supply tank 1, and a hollow bearing 8 is fixedly connected to the top of the water supply tank 1. The top of the hollow agitator 7 is rotatably connected to the hollow bearing 8, and the top of the hollow bearing 8 is connected to an inlet pipe. The fertilizer pipe 15 also includes a fertilizer liquid tank 2. A fertilizer discharge pipe 21 is fixedly connected to the bottom of the fertilizer liquid tank 2. A liquid pump 10 is connected to the end of the fertilizer discharge pipe 21. The water outlet of the liquid pump 10 is connected to the fertilizer inlet pipe 15 via a hose 11. A fertilizer channel 23 is opened inside the hollow agitator 7. The fertilizer channel 23 is connected to the agitator paddle of the hollow agitator 7. Several fertilizer discharge holes 24 are opened at the end of the agitator paddle. A heating box 3 is fixedly connected to the main water pipe 4. A heating pipe 13 is installed inside the heating box 3.
[0021] In this embodiment, the water inlet pipe 9 is always connected to the tap water pipe, and a valve is installed on it.
[0022] It should be noted that heating element 13 is an electric heating element.
[0023] In order to reduce water waste, the main water pipe 4 is connected to the application pipe 5, and several drip irrigation pipes 6 are connected to the application pipe 5. Several drip irrigation holes 14 are opened on the drip irrigation pipes 6.
[0024] Among them, the application pipe 5 is connected to several small water distribution heads, the drip irrigation pipe 6 is fitted onto the water distribution heads and tied with iron wire.
[0025] To facilitate the mixing speed of fertilizer and water, a stirring motor 18 is fixedly connected to the bottom of the water supply tank 1. The rotating shaft of the stirring motor 18 passes through the tank wall of the water supply tank 1 and is fixedly connected to the hollow agitator 7.
[0026] To prevent water accumulation in the water supply tank 1, a drain pipe 19 is connected to the bottom of the water supply tank 1, and a valve is installed on the drain pipe 19. A first bracket 17 is fixedly connected to the bottom of the water supply tank 1.
[0027] To facilitate the addition of fertilizer solution, the top of the fertilizer solution tank 2 is connected to a fertilizer solution inlet 20, and the bottom is fixedly connected to a second support 22.
[0028] The fertilizer inlet 20 is threaded with a cap.
[0029] To facilitate water temperature control, a first temperature probe 25 is installed in the main water pipe 4 before the heating box 3, and a second temperature probe 26 is installed in the main water pipe 4 after the heating box 3.
[0030] It should be noted that a controller is also provided in this embodiment, wherein the first temperature probe 25 and the second temperature probe 26 are communicatively connected to the controller, and the liquid pump 10, the water pump 12, and the heating tube 13 are controlled by the controller.
[0031] The specific working process of this utility model is as follows:
[0032] During installation, the water supply tank 1, fertilizer solution tank 2, heating tank 3 and other equipment are installed in the corners or side rooms of the greenhouse, the application pipe 5 is installed at the base of the greenhouse wall, and the drip irrigation pipe 6 is laid on the ground of the greenhouse.
[0033] When watering is needed, first add liquid fertilizer to the fertilizer tank 2 through the fertilizer inlet 20. At this time, water is continuously supplied to the water supply tank 1 through the water inlet pipe 9. Then, turn on the stirring motor 18 and the liquid pump 10. The liquid pump 10 pumps the liquid fertilizer in the fertilizer tank 2 into the fertilizer channel 23 in the hollow mixer 7 through the hose 11, and enters the water supply tank 1 through the fertilizer outlet 24. At the same time, stirring will accelerate the mixing of fertilizer and water. After mixing is complete, turn on the water pump 12. The fertilizer solution enters the application pipe 5 from the main water pipe 4 and flows out from the drip irrigation hole 14 on the drip irrigation pipe 6 to add fertilizer solution to the crops.
[0034] In winter, the temperature of tap water is low, mostly below 10℃, while the appropriate water temperature should be above 20℃. When the first temperature probe 25 detects that the water temperature is below 10℃, the heating tube 13 in the heating box 3 is turned on to heat the water, thereby reducing the impact of cold water on crops. At the same time, the second temperature probe 26 measures the temperature after heating. When the temperature is detected to be above 25℃, the power of the heating tube 13 is reduced.
Claims
1. A greenhouse water and fertilizer integrated application system, comprising a water supply tank (1), wherein an inlet pipe (9) is fixedly connected to the top of the water supply tank (1), and an outlet pipe (16) is fixedly connected to the bottom of the water supply tank (1), wherein a water pump (12) is fixedly connected to the end of the outlet pipe (16), and the outlet end of the water pump (12) is connected to a main water pipe (4), characterized in that: A hollow agitator (7) is rotatably connected inside the water supply tank (1). A hollow bearing (8) is fixedly connected to the top of the water supply tank (1). The top of the hollow agitator (7) is rotatably connected to the hollow bearing (8). A fertilizer inlet pipe (15) is connected to the top of the hollow bearing (8). The tank also includes a fertilizer liquid tank (2). A fertilizer outlet pipe (21) is fixedly connected to the bottom of the fertilizer liquid tank (2). A liquid pump (10) is connected to the end of the fertilizer outlet pipe (21). The outlet of the liquid pump (10) is connected to the fertilizer inlet pipe (15) via a hose (11). A fertilizer channel (23) is opened inside the hollow agitator (7). The fertilizer channel (23) is connected to the agitator paddle of the hollow agitator (7). Several fertilizer outlet holes (24) are opened at the end of the agitator paddle. A heating box (3) is fixedly connected to the main water pipe (4). A heating pipe (13) is installed inside the heating box (3).
2. The greenhouse water and fertilizer integrated application system according to claim 1, characterized in that: The main water pipe (4) is connected to an application pipe (5), and several drip irrigation pipes (6) are connected to the application pipe (5). Several drip irrigation holes (14) are opened on the drip irrigation pipes (6).
3. The greenhouse water and fertilizer integrated application system according to claim 1, characterized in that: A stirring motor (18) is fixedly connected to the bottom of the water supply tank (1). The rotating shaft of the stirring motor (18) passes through the tank wall of the water supply tank (1) and is fixedly connected to the hollow stirrer (7).
4. The greenhouse water and fertilizer integrated application system according to claim 1, characterized in that: The bottom of the water supply tank (1) is connected to a drain pipe (19), and a valve is installed on the drain pipe (19). The bottom of the water supply tank (1) is fixedly connected to a first bracket (17).
5. The greenhouse water and fertilizer integrated application system according to claim 1, characterized in that: The top of the fertilizer tank (2) is connected to a fertilizer inlet (20), and the bottom is fixedly connected to a second bracket (22).
6. The greenhouse water and fertilizer integrated application system according to claim 1, characterized in that: A first temperature probe (25) is installed in the main water pipe (4) in front of the heating box (3), and a second temperature probe (26) is installed in the main water pipe (4) behind the heating box (3).