Water and fertilizer irrigation system

Abstract

The utility model relates to a water-fertilizer irrigation system which comprises a water-fertilizer liquid storage tank, a dilution tank, a clear water tank, a fertilizer preparation pipeline system and an irrigation pipeline system, the dilution tank is arranged above the clear water tank, a reverse osmosis membrane is arranged at the bottom in the dilution tank, the lower end of the reverse osmosis membrane is communicated with the clear water tank through an electromagnetic valve, and the dilution tank is connected with the water-fertilizer liquid storage tank, the clear water tank and the irrigation pipeline system through a water pump; the dilution tank is externally connected with a water source, an EC value sensor is arranged in the dilution tank, and the electromagnetic valve, the EC value sensor and the water pump are electrically connected with the controller. Water and fertilizer in the dilution tank are filtered through the reverse osmosis membrane, filtered clear water enters the clear water tank to be stored, when the EC value sensor detects that the concentration of the diluted water and fertilizer in the dilution tank reaches the expected concentration, the electromagnetic valve is closed, and the remaining high-concentration water and fertilizer in the dilution tank are pumped into the water and fertilizer liquid storage tank through the water pump to be stored. The system can recover and store unused water and fertilizer, so that the waste of the water and fertilizer is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural irrigation equipment, in particular to a water and fertilizer irrigation system. Background Art

[0002] With the rapid development of modern agricultural technology, integrated water and fertilizer irrigation systems have become an important means to improve crop yield and quality. This type of system can automatically adjust and supply appropriate water and fertilizer mixtures according to the needs of different crop seedlings. The EC value (electrical conductivity) is an important indicator for measuring the concentration of water and fertilizer solutions, which directly affects the growth and development of crops.

[0003] At present, existing water and fertilizer irrigation systems are generally equipped with EC value monitoring and adjustment devices. These devices use sensors to monitor the nutrient status of the soil or crop leaves in real time, and automatically adjust the water-fertilizer mixture ratio according to the preset EC value range to ensure that crops obtain sufficient and appropriate nutrients at different growth stages. However, in actual operation, due to changes in crop growth requirements, different soil conditions and different irrigation strategies, the water-fertilizer mixture prepared each time is often not used up.

[0004] The common treatment methods for the remaining water-fertilizer mixture include direct discharge and direct storage for reuse. However, these methods have certain limitations. Direct discharge not only wastes resources, but also may pollute the environment; direct storage for reuse requires a lot of additional storage equipment and space, which increases costs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a water and fertilizer irrigation system to overcome the deficiencies in the above-mentioned prior art.

[0006] The utility model solves the above technical problems with the following technical solutions: a water-fertilizer irrigation system, including a water-fertilizer storage tank, a dilution tank, a clean water tank, a fertilizer distribution pipeline system and an irrigation pipeline system;

[0007] The dilution tank is arranged above the clean water tank, a reverse osmosis membrane is arranged at the bottom of the dilution tank, the lower end of the reverse osmosis membrane is connected with the clean water tank through a solenoid valve, and the dilution tank is connected with the water and fertilizer storage tank, the clean water tank and the irrigation pipeline system through a water pump;

[0008] The dilution box is connected to an external water source, an EC value sensor is arranged in the dilution box, and the solenoid valve, the EC value sensor and the water pump are electrically connected to the controller.

[0009] The beneficial effects of the utility model are as follows: when the water and fertilizer in the dilution tank are not used up, the solenoid valve is opened to filter the water and fertilizer in the dilution tank through the reverse osmosis membrane, and the filtered clean water enters the clean water tank for storage; when the EC value sensor detects that the concentration of the diluted water and fertilizer in the dilution tank reaches the expected concentration, the solenoid valve is closed, and the remaining high-concentration water and fertilizer in the dilution tank are pumped into the water and fertilizer storage tank for storage through the water pump; the system can recycle and store the unused water and fertilizer, greatly reducing the waste of water and fertilizer; the filtered clean water is also recycled, saving water resources; when the clean water tank is full, the remaining clean water can be directly discharged without polluting the environment.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Further, the fertilizer distribution pipeline system includes a water pump a, a water pump b, a solenoid valve a, a solenoid valve b, a solenoid valve c, a solenoid valve d, a solenoid valve e, a pipeline a, a pipeline b, a pipeline c, a pipeline d, a pipeline e, a pipeline f, a pipeline g, a pipeline h, a pipeline i, a pipeline j, a three-way joint a, a three-way joint b and a three-way joint c, which are electrically connected to the controller respectively;

[0012] The dilution box and the water-fertilizer storage tank are connected in sequence through pipeline a, three-way joint a, water pump a and solenoid valve b. The three-way joint a is connected to the three-way joint b through pipeline c. The other two interfaces of the three-way joint b are connected to the solenoid valve d and the solenoid valve c through pipeline d and pipeline e respectively. The clean water tank is connected to the solenoid valve c through pipeline h. The solenoid valve d is connected to the three-way joint c through pipeline f. The three-way joint c is connected to the solenoid valve e through pipeline j. The three-way joint c is connected to the solenoid valve c through pipeline g. The water pump b is arranged on the pipeline g; the solenoid valve d is connected to an external water source.

[0013] Furthermore, at least two groups of water and fertilizer storage tanks and pipelines i are respectively provided.

[0014] Furthermore, high and low water level sensors are provided in the dilution tank, the clean water tank and the water-fertilizer storage tank, and the multiple high and low water level sensors are electrically connected to the controller respectively.

[0015] Furthermore, exhaust holes are arranged on the tops of the water-fertilizer storage tank, the dilution tank and the clean water tank.

[0016] Furthermore, the irrigation pipeline system includes an irrigation main pipeline and an irrigation branch pipeline, and the irrigation branch pipeline is connected to the irrigation main pipeline through a three-way joint.

[0017] Furthermore, at least two groups of irrigation main pipes are provided.

[0018] Furthermore, the end of the irrigation branch pipe is detachably connected with a drip arrow or a sprinkler.

[0019] Furthermore, an electric stirring rod is arranged in the dilution box, and the electric stirring rod is electrically connected to the controller.

[0020] Furthermore, it also includes a touch display screen electrically connected to the controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Water and fertilizer storage tank; 2. Dilution tank; 3. Clean water tank; 4. Fertilizer distribution pipeline system; 401. Water pump a; 402. Water pump b; 403. Solenoid valve a; 404. Solenoid valve b; 405. Solenoid valve c; 406. Solenoid valve d; 407. Solenoid valve e; 408. Pipeline a; 409. Pipeline b; 410. Pipeline c; 411. Pipeline d; 412. Pipeline e; 413. Pipeline f; 414. Pipeline g; 415. Pipeline h; 416. Pipeline i; 417. Pipeline j; 418. Tee joint a; 419. Tee joint b; 420. Tee joint c; 5. Irrigation pipeline system; 501. Irrigation main pipeline; 502. Irrigation branch pipeline; 6. Reverse osmosis membrane; 7. EC value sensor; 8. Electric stirring rod. DETAILED DESCRIPTION

[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0025] like Figure 1 As shown, in embodiment 1, a water-fertilizer irrigation system comprises a water-fertilizer storage tank 1, a dilution tank 2, a clean water tank 3, a fertilizer distribution pipeline system 4 and an irrigation pipeline system 5;

[0026] The dilution tank 2 is arranged above the clean water tank 3, a reverse osmosis membrane 6 is arranged at the bottom of the dilution tank 2, the lower end of the reverse osmosis membrane 6 is connected to the clean water tank 3 through a solenoid valve, and the dilution tank 2 is connected to the water and fertilizer storage tank 1, the clean water tank 3 and the irrigation pipeline system 5 through a water pump;

[0027] The dilution box 2 is connected to an external water source, an EC value sensor 7 is arranged in the dilution box 2, and the solenoid valve, the EC value sensor 7 and the water pump are electrically connected to the controller.

[0028] When the water and fertilizer in the dilution tank 2 are not used up, the solenoid valve is opened to filter the water and fertilizer in the dilution tank 2 through the reverse osmosis membrane 6, and the filtered clean water enters the clean water tank 3 for storage. When the EC value sensor 7 detects that the concentration of the diluted water and fertilizer in the dilution tank 2 reaches the expected concentration, the solenoid valve is closed, and the remaining high-concentration water and fertilizer in the dilution tank 2 are pumped into the water and fertilizer storage tank 1 for storage through a water pump. The system can recycle and store unused water and fertilizer, greatly reducing the waste of water and fertilizer. The filtered clean water is also recycled, saving water resources. When the clean water tank 3 is full, the remaining clean water can be discharged directly without polluting the environment.

[0029] In a specific implementation, the external water source can be water supplied by a tap or water pumped by a water pump, and the existing reverse osmosis membrane 6 used for drinking water filtration can be used, which has a better filtration effect.

[0030] Embodiment 2: This embodiment is a further improvement on the basis of embodiment 1, and its details are as follows:

[0031] The fertilizer distribution pipeline system 4 includes a water pump a401, a water pump b402, a solenoid valve a403, a solenoid valve b404, a solenoid valve c405, a solenoid valve d406, a solenoid valve e407, a pipeline a408, a pipeline b409, a pipeline c410, a pipeline d411, a pipeline e412, a pipeline f413, a pipeline g414, a pipeline h415, a pipeline i416, a pipeline j417, a three-way joint a418, a three-way joint b419 and a three-way joint c420 which are electrically connected to the controller respectively;

[0032] The dilution tank 2 and the water-fertilizer storage tank 1 are connected in sequence through a pipeline a408, a three-way joint a418, a water pump a401 and a solenoid valve b404. The three-way joint a418 is connected to a three-way joint b419 through a pipeline c410. The other two interfaces of the three-way joint b419 are connected to the solenoid valve d406 and the solenoid valve c405 through pipelines d411 and e412 respectively. The clean water tank 3 is connected to the solenoid valve c405 through a pipeline h415. The solenoid valve d406 is connected to the three-way joint c420 through a pipeline f413. The three-way joint c420 is connected to the solenoid valve e407 through a pipeline j417. The three-way joint c420 is connected to the solenoid valve c405 through a pipeline g414. A water pump b402 is arranged on the pipeline g414. The solenoid valve d406 is connected to an external water source.

[0033] In specific implementation, the system operates as follows:

[0034] Water fertilizer dilution: open the solenoid valve b404 and the water pump a401, the water pump a401 pumps the specified amount of high-concentration water fertilizer into the three-way joint a418 and then enters the dilution tank 2 through the pipe a408, and the water pump a401 and the solenoid valve b404 are closed; at this time, when there is no clean water in the clean water tank 3, open the solenoid valve d406, and the external water source passes through the solenoid valve d406, the pipe d411, the three-way joint b419, the pipe c410, the three-way joint a418 and the pipe a408 in turn to enter the dilution tank 2, when the EC value sensor 7 detects that the EC value of the water fertilizer is diluted to the specified concentration, the solenoid valve d406 is closed; when When there is clean water in the clean water tank 3, open the solenoid valve c405, the water pump b402 and the solenoid valve d406. Under the action of the water pump b402, the clean water in the clean water tank 3 passes through the pipe h415, the solenoid valve c405, the pipe g414, the water pump b402, the three-way joint c420, the pipe f413, the solenoid valve d406, the pipe d411, the three-way joint b419, the pipe c410, the three-way joint a418 and the pipe a408 in sequence and enters the dilution tank 2; when the external water source is injected for dilution, since the solenoid valve c405 and the solenoid valve b404 are closed, the external water source can only enter the dilution tank 2;

[0035] Water and fertilizer irrigation: after the water and fertilizer are diluted, the solenoid valve c405 and the water pump b402 are opened. The diluted water and fertilizer, under the action of the water pump b402, pass through the pipe a408, the three-way joint a418, the pipe c410, the three-way joint b419, the pipe e412, the solenoid valve c405, the water pump b402, the three-way joint c420, the pipe j417, and the solenoid valve e407 from the dilution tank 2 to enter the irrigation pipeline system 5 for irrigation; during this period, when the water and fertilizer pass through the three-way joint c420, the solenoid valve d406 is closed, so the water and fertilizer can only enter the irrigation pipeline system 5;

[0036] Water and fertilizer recovery: After irrigation, if there is water and fertilizer in the dilution tank 2, open the solenoid valve a403, and the water and fertilizer in the dilution tank 2 are filtered through the reverse osmosis membrane 6. The filtered clean water enters the clean water tank 3 for storage. When the EC value sensor 7 detects that the water and fertilizer concentration in the dilution tank 2 rises to the expected concentration, close the solenoid valve a403, turn on the water pump a401 and the solenoid valve, and the water pump a401 pumps the high-concentration water and fertilizer in the dilution tank 2 into the water and fertilizer storage tank 1.

[0037] Solenoid valve a403 adopts straight-through solenoid valve, solenoid valve b404, solenoid valve c405, solenoid valve d406, solenoid valve e407 adopt conventional three-way solenoid valve. For the specific pipe interface connection method of the solenoid valve, please refer to Figure 1 ; Tee joint a418, Tee joint b419 and Tee joint c420 adopt the conventional Tee joint of quick plug and quick release

[0038] Embodiment 3, this embodiment is a further improvement on the basis of embodiment 2, and its details are as follows:

[0039] The water and fertilizer storage tank 1 and the pipeline i416 are respectively provided with at least two groups, which can store different water and fertilizers, such as balanced fertilizer, potassium dihydrogen phosphate, high potash fertilizer or other large, medium and trace element fertilizers.

[0040] Embodiment 4: This embodiment is a further improvement on the basis of embodiment 1, and its details are as follows:

[0041] High and low water level sensors are provided in the dilution tank 2, the clean water tank 3 and the water and fertilizer storage tank 1, and the multiple high and low water level sensors are electrically connected to the controller respectively. The high and low water level sensors can detect the water levels in the dilution tank 2, the clean water tank 3 and the water and fertilizer storage tank 1, so as to adjust them according to the actual situation to avoid water shortage.

[0042] Embodiment 5, this embodiment is a further improvement on the basis of embodiment 1, and its details are as follows:

[0043] The tops of the water-fertilizer storage tank 1, the dilution tank 2 and the clean water tank 3 are provided with exhaust holes, so that the air pressure in the water-fertilizer storage tank 1, the dilution tank 2 and the clean water tank 3 can be kept balanced when pumping in or pumping out the water-fertilizer.

[0044] Embodiment 6: This embodiment is a further improvement on the basis of embodiment 1, and its details are as follows:

[0045] The irrigation pipeline system 5 includes an irrigation main pipeline 501 and an irrigation branch pipeline 502. The irrigation branch pipeline 502 is connected to the irrigation main pipeline 501 through a three-way joint. The irrigation branch pipeline 502 can be quickly expanded according to actual conditions.

[0046] Embodiment 7, this embodiment is a further improvement on the basis of embodiment 6, and its details are as follows:

[0047] At least two groups of irrigation main pipes 501 are provided, which can respectively flush or drip irrigate water and fertilizer with different EC concentrations according to the conditions and stages of the crop seedlings.

[0048] Embodiment 8, this embodiment is a further improvement on the basis of embodiment 7, and its details are as follows:

[0049] The end of the irrigation branch pipe 502 is detachably connected with a dripping arrow or a sprinkler head, so that spraying or drip irrigation can be performed.

[0050] Embodiment 9: This embodiment is a further improvement on the basis of embodiment 1, and its details are as follows:

[0051] An electric stirring rod 8 is arranged in the dilution box 2, and the electric stirring rod 8 is electrically connected to the controller, so that the water and fertilizer in the dilution box 2 are more uniform during irrigation.

[0052] Embodiment 10: This embodiment is a further improvement on the basis of Embodiment 1, and its details are as follows:

[0053] It also includes a touch screen electrically connected to the controller, and can be adjusted and monitored in real time through the touch screen.

[0054] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A water and fertilizer irrigation system, characterized in that: It comprises a water and fertilizer storage tank (1), a dilution tank (2), a clean water tank (3), a fertilizer distribution pipeline system (4) and an irrigation pipeline system (5); The dilution tank (2) is arranged above the clean water tank (3); a reverse osmosis membrane (6) is arranged at the bottom of the dilution tank (2); the lower end of the reverse osmosis membrane (6) is connected to the clean water tank (3) via a solenoid valve; the dilution tank (2) is connected to the water-fertilizer storage tank (1), the clean water tank (3) and the irrigation pipeline system (5) via a water pump; The dilution box (2) is connected to an external water source, an EC value sensor (7) is arranged inside the dilution box (2), and the solenoid valve, the EC value sensor (7) and the water pump are electrically connected to a controller.

2. A water and fertilizer irrigation system according to claim 1, characterized in that: The fertilizer distribution pipeline system (4) comprises a water pump a (401), a water pump b (402), a solenoid valve a (403), a solenoid valve b (404), a solenoid valve c (405), a solenoid valve d (406), a solenoid valve e (407), a pipeline a (408), a pipeline b (409), a pipeline c (410), a pipeline d (411), a pipeline e (412), a pipeline f (413), a pipeline g (414), a pipeline h (415), a pipeline i (416), a pipeline j (417), a three-way joint a (418), a three-way joint b (419) and a three-way joint c (420), which are electrically connected to the controller respectively. The dilution box (2) and the water-fertilizer storage tank (1) are connected in sequence via the pipeline a (408), the three-way joint a (418), the water pump a (401) and the solenoid valve b (404); the three-way joint a (418) is connected to the three-way joint b (419) via the pipeline c (410); the other two interfaces of the three-way joint b (419) are connected to the solenoid valve d (406) and the solenoid valve c (405) via the pipeline d (411) and the pipeline e (412), respectively; The clean water tank (3) is connected to the solenoid valve c (405) via the pipe h (415), the solenoid valve d (406) is connected to the three-way joint c (420) via the pipe f (413), the three-way joint c (420) is connected to the solenoid valve e (407) via the pipe j (417), the three-way joint c (420) is connected to the solenoid valve c (405) via the pipe g (414), the water pump b (402) is arranged on the pipe g (414); the solenoid valve d (406) is connected to an external water source.

3. A water and fertilizer irrigation system according to claim 2, characterized in that: The water-fertilizer storage tank (1) and the pipeline i (416) are each provided with at least two groups.

4. A water and fertilizer irrigation system according to claim 1, characterized in that: The dilution tank (2), the clean water tank (3) and the water-fertilizer storage tank (1) are all provided with high and low water level sensors, and a plurality of the high and low water level sensors are electrically connected to the controller respectively.

5. A water and fertilizer irrigation system according to claim 1, characterized in that: The tops of the water-fertilizer storage tank (1), the dilution tank (2) and the clean water tank (3) are provided with exhaust holes.

6. A water and fertilizer irrigation system according to claim 1, characterized in that: The irrigation pipeline system (5) comprises an irrigation main pipeline (501) and an irrigation branch pipeline (502), and the irrigation branch pipeline (502) is connected to the irrigation main pipeline (501) via a three-way joint.

7. A water and fertilizer irrigation system according to claim 6, characterized in that: The main irrigation pipelines (501) are provided in at least two groups.

8. A water and fertilizer irrigation system according to claim 7, characterized in that: The end of the irrigation branch pipe (502) is detachably connected to a drip arrow or a sprinkler.

9. The water and fertilizer irrigation system according to claim 1, characterized in that: An electric stirring rod (8) is arranged in the dilution box (2), and the electric stirring rod (8) is electrically connected to the controller.

10. The water and fertilizer irrigation system according to claim 1, characterized in that: Also included is a touch display screen electrically connected to the controller.

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