Integrated intelligent water and fertilizer drip irrigation system

Abstract

The invention discloses an integrated intelligent water and fertilizer drip irrigation system, and relates to the technical field of irrigation equipment, the integrated intelligent water and fertilizer drip irrigation system comprises a feeding cylinder, the outer side of the feeding cylinder is sequentially connected with a material conveying pipe, an air inlet pipe and a water supply pipe from top to bottom, a piston is arranged in the feeding cylinder, and a material moving cavity is formed in the middle of the piston; the piston is driven by a driving mechanism to reciprocate and is used for connecting the material moving cavity with the material conveying pipe, the air inlet pipe and the water supply pipe in sequence; one side of the water supply pipe is connected with a flow dividing pipe in parallel, the flow dividing pipe is connected with a Venturi pipe in series, and a throat pipe part of the Venturi pipe is communicated with the air inlet pipe through a suction pipe; and the material conveying pipe is connected with a material outlet of the fertilizer storage box. According to the integrated intelligent water and fertilizer drip irrigation system, direct adding of water-soluble fertilizer can be achieved, pre-dissolving is not needed, and fertilizer application is more convenient.

Description

Technical Field

[0001] This invention relates to the field of irrigation equipment technology, specifically to an integrated intelligent drip irrigation system. Background Technology

[0002] Most existing drip irrigation systems connect a liquid fertilizer tank in parallel to the main pipeline. In irrigation mode, the system supplies clean water directly to each drip irrigation pipe via the main pipeline by closing the control valve at the liquid fertilizer tank's outlet. When fertilization is needed, the control valve on the liquid fertilizer tank's outlet pipe is opened, allowing the liquid fertilizer in the tank to flow into each drip irrigation pipe along with the water in the main pipeline.

[0003] For example, Chinese invention patent application number CN201610683926.4 discloses an integrated water and fertilizer drip irrigation device. This integrated water and fertilizer drip irrigation device has a quantitative fertilizer dispensing device installed on the top of the tank A. The device has a tank B, with an exhaust port B on the top of the tank B and an inlet B and an outlet B at the bottom of the tank B. Liquid fertilizer is delivered into the tank through the quantitative fertilizer dispensing device.

[0004] Although it can achieve quantitative addition of liquid fertilizer, the widespread use of granular water-soluble fertilizers in agriculture means that before fertilization, the granular fertilizer must be converted into liquid and then injected into the liquid fertilizer tank. This process is rather cumbersome and makes fertilizer application inconvenient.

[0005] Therefore, it is necessary to propose an integrated intelligent drip irrigation system to solve the above problems. Summary of the Invention

[0006] (a) Technical problems to be solved The purpose of this invention is to provide an integrated intelligent drip irrigation system to solve the problem of inconvenient application of granular fertilizer in existing drip irrigation systems mentioned in the background art.

[0007] (II) Technical Solution To achieve the above objectives, the present invention is implemented through the following technical solution: an integrated intelligent water and fertilizer drip irrigation system, including a feeding cylinder, wherein a conveying pipe, an air inlet pipe and a water supply pipe are connected sequentially from top to bottom on the outer side of the feeding cylinder, a piston is provided inside the feeding cylinder, and a material transfer chamber is opened in the middle of the piston, the piston is driven by a driving mechanism to move back and forth, so as to connect the material transfer chamber sequentially with the conveying pipe, the air inlet pipe and the water supply pipe; A branch pipe is connected in parallel to one side of the water supply pipe, and a venturi tube is connected in series on the branch pipe. The throat of the venturi tube is connected to the air inlet pipe through a suction pipe. The conveying pipe is connected to the outlet of the fertilizer storage box.

[0008] Preferably, the material transfer chamber is an oblique hole, and a screen is fixedly connected to the lower end of the oblique hole; the air inlet pipe is arranged at an angle, a filter screen is fixedly connected to the higher end of the air inlet pipe, and the lower end of the air inlet pipe is connected to the suction pipe.

[0009] Preferably, a baffle plate is fixedly connected to the top of the piston near the feed pipe.

[0010] Preferably, the two ends of the diversion pipe are respectively connected to two water supply pipes located on both sides of the feeding cylinder, and the end of the feeding cylinder away from the conveying pipe is connected to the diversion pipe.

[0011] Preferably, it also includes a bypass pipe, the two ends of which are respectively connected to two water supply pipes located on both sides of the feeding cylinder, and the end of the feeding cylinder away from the conveying pipe is connected to the bypass pipe.

[0012] Preferably, the water supply pipe is equipped with a flow meter, and both the flow meter and the drive mechanism are electrically connected to the controller.

[0013] Preferably, the system also includes a liquid storage tank, a liquid level switch is fixedly connected to the inside of the liquid storage tank, the outlet end of the water supply pipe is connected to the inlet of the liquid storage tank, and the outlet of the liquid storage tank is connected to the drip irrigation pipe.

[0014] Preferably, the system also includes a filtration module, which comprises a centrifugal filter and a disc filter connected in sequence, with the inlet end of the water supply pipe connected to the outlet end of the disc filter.

[0015] Preferably, the driving mechanism includes a servo motor, a disk, and a connecting rod. The disk is driven to rotate by the servo motor, one end of the connecting rod is rotatably connected to the piston, and the other end of the connecting rod is rotatably connected to the disk.

[0016] Preferably, the distance between the conveying pipe and the air inlet pipe is less than the diameter of the material transfer chamber, and a sealing plug is fixedly connected to the end of the air inlet pipe away from the suction pipe.

[0017] (III) Beneficial Effects Compared with the prior art, the present invention provides an integrated intelligent drip irrigation system with the following advantages: 1. This integrated intelligent water and fertilizer drip irrigation system uses a feeding cylinder with a reciprocating piston inside to transport water-soluble fertilizer to the water supply pipe through the feeding chamber, so as to realize the direct addition of water-soluble granular fertilizer without pre-dissolving, making fertilizer application more convenient.

[0018] 2. This integrated intelligent water and fertilizer drip irrigation system, by setting up a Venturi tube and an air inlet pipe, creates a negative pressure in the suction pipe when the piston moves upward, causing the water in the transfer chamber to flow back to the distribution pipe through the suction pipe, thus preventing water from entering the delivery pipe and causing the fertilizer to melt and clump.

[0019] 3. This integrated intelligent water and fertilizer drip irrigation system connects the feed pipe and the air inlet pipe through the feed chamber and seals the inlet of the air inlet pipe. Liquid fertilizer is added to the fertilizer storage tank, and the negative pressure formed by the Venturi tube draws the liquid fertilizer into the distribution pipe, so that it can be used for the application of liquid fertilizer at the same time. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the system of the present invention; Figure 2 This is a schematic diagram of the water-fertilizer mixing module of the present invention in one state; Figure 3 This is a schematic diagram of the second state of the water-fertilizer mixing module of the present invention; Figure 4 This is a schematic diagram of the water-fertilizer mixing module in state three of the present invention; Figure 5 This is a schematic diagram of the fourth state of the water-fertilizer mixing module of the present invention; Figure 6 This is a schematic diagram of the driving mechanism of the present invention; Figure 7 This is a three-dimensional schematic diagram of the structure of the present invention.

[0021] In the diagram: 1. Controller; 2. Filter module; 3. Water-fertilizer mixing module; 4. Base; 5. Forklift hole; 6. Storage tank; 7. Liquid level switch; 8. Inlet; 9. Outlet; 10. Water supply pipe; 21. Centrifugal filter; 22. Disc filter; 31. Fertilizer storage tank; 32. Flow meter; 33. Baffle plate; 34. Piston; 35. Transfer chamber; 36. Suction pipe; 37. Venturi tube; 38. Diverter pipe; 39. Feeding pipe; 40. Filter screen; 41. Air inlet pipe; 42. Feed cylinder; 43. Bypass pipe; 44. Throttling valve; 45. Sealing ring; 46. Servo motor; 47. Disc; 48. Connecting rod; 49. Barrier net. Detailed Implementation

[0022] 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. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Please see Figure 1-7As shown, an integrated intelligent drip irrigation system includes a feed cylinder 42. From top to bottom, a conveying pipe 39, an air inlet pipe 41, and a water supply pipe 10 are connected to the outside of the feed cylinder 42. A piston 34 is provided inside the feed cylinder 42. A material transfer chamber 35 is opened in the middle of the piston 34. The piston 34 is driven by a drive mechanism to move back and forth, so that the material transfer chamber 35 is connected to the conveying pipe 39, the air inlet pipe 41, and the water supply pipe 10 in sequence. A diversion pipe 38 is connected in parallel on one side of the water supply pipe 10. A venturi tube 37 is connected in series on the diversion pipe 38. The throat of the venturi tube 37 is connected to the air inlet pipe 41 through a suction pipe 36.

[0024] When water is supplied to the drip irrigation pipeline through the water supply pipe 10, the piston 34 is driven by the drive mechanism to move back and forth in the feed cylinder 42. When the transfer chamber 35 moves and connects with the conveying pipe 39, the fertilizer granules in the fertilizer storage tank 31 enter the transfer chamber 35 through the conveying pipe 39. Then the piston 34 moves down until the transfer chamber 35 connects with the water supply pipe 10, and the fertilizer in the transfer chamber 35 enters the water supply pipe 10, thereby realizing the addition of fertilizer. As water flows through the venturi tube 37, it creates negative pressure in the suction tube 36. During the upward reset of the piston 34, when the transfer chamber 35 is connected to the air inlet pipe 41, the water remaining in the transfer chamber 35 flows into the air inlet pipe 41 and is drawn back into the diversion pipe 38 by the suction tube 36. This prevents the transfer chamber 35 from carrying water to the delivery pipe 39, causing the fertilizer to melt and clump at the delivery pipe 39, thus preventing pipe blockage. This cycle is repeated to achieve continuous addition of water-soluble fertilizer.

[0025] When the material transfer chamber 35 is connected to the material conveying pipe 39, the lower end face of the piston 34 moves between the water supply pipe 10 and the air inlet pipe 41, and seals the material supply cylinder 42 with the sealing ring 45 to prevent the liquid from the water supply pipe 10 from entering the air inlet pipe 41 and the material conveying pipe 39; the liquid inlet end of the diversion pipe 38 is equipped with a throttle valve 44, which is used to control the proportion of water entering the diversion pipe 38, thereby adjusting the magnitude of the negative pressure generated by the diversion pipe 38.

[0026] In some embodiments, the material transfer chamber 35 is an oblique hole, and a screen 49 is fixedly connected to the lower end of the oblique hole; the air inlet pipe 41 is arranged at an angle, and a filter screen 40 is fixedly connected to the higher end of the air inlet pipe 41, while the lower end of the air inlet pipe 41 is connected to the suction pipe 36.

[0027] By setting the transfer chamber 35 as an oblique hole, fertilizer enters the transfer chamber 35 when it is connected to the conveying pipe 39. At the same time, by setting the screen 49, fertilizer particles in the transfer chamber 35 are prevented from entering the air inlet pipe 41 during the downward movement of the piston 34. In addition, during the upward movement of the piston 34, water in the oblique hole can be easily discharged into the air inlet pipe 41.

[0028] By tilting the air inlet pipe 41, water in the air inlet pipe 41 is prevented from flowing back into the material transfer chamber 35. By setting the filter screen 40, foreign objects are prevented from entering the air inlet pipe 41, which would cause the suction pipe 36 to become blocked.

[0029] Specifically, the material transfer chamber 35 and the air inlet pipe 41 are inclined in the same direction, and the material conveying pipe 39 is located at the higher end of the material transfer chamber 35.

[0030] To block the feed pipe 39 when the piston 34 moves downward, a baffle plate 33 is fixedly connected to the top of the piston 34 near the feed pipe 39. When the piston 34 moves downward, the baffle plate 33 can block the feed pipe 39.

[0031] As piston 34 moves downward, it will block water supply pipe 10. In order to prevent it from cutting off the water flow and affecting the normal water supply, the piston 34 will block the water supply pipe 10.

[0032] In some embodiments, the two ends of the diversion pipe 38 are respectively connected to two sections of water supply pipe 10 located on both sides of the feeding cylinder 42, and the end of the feeding cylinder 42 away from the conveying pipe 39 is connected to the diversion pipe 38.

[0033] When piston 34 blocks water supply pipe 10, water flows through diversion pipe 38 from water supply pipe 10 on one side of feed cylinder 42 to water supply pipe 10 on the other side of feed cylinder 42, thereby achieving uninterrupted water supply; at the same time, when piston 34 moves downward, water in feed cylinder 42 is discharged into conveying pipe 39.

[0034] In some embodiments, a bypass pipe 43 is also included, with both ends of the bypass pipe 43 connected to two sections of water supply pipe 10 located on both sides of the feed cylinder 42, and the end of the feed cylinder 42 away from the conveying pipe 39 connected to the bypass pipe 43.

[0035] By setting a bypass pipe 43, when the piston 34 blocks the water supply pipe 10, the water flows through the bypass pipe 43 from the water supply pipe 10 located on one side of the feed cylinder 42 to the water supply pipe 10 on the other side of the feed cylinder 42, thereby achieving uninterrupted water supply; at the same time, when the piston 34 moves downward, the water in the feed cylinder 42 is discharged into the bypass pipe 43.

[0036] To facilitate the adjustment of fertilizer concentration, a flow meter 32 is installed on the water supply pipe 10. The flow meter 32 and the drive mechanism are both electrically connected to the controller 1.

[0037] The flow rate of water in the water supply pipe 10 within a unit time period is obtained by the flow meter 32. The controller 1 controls the frequency of the reciprocating motion of the piston 34 driven by the drive mechanism according to the water flow rate and the preset water-fertilizer ratio, thereby realizing the adjustment of fertilizer solubility.

[0038] Because piston 34 feeds the fertilizer through reciprocating motion, there is a feeding gap. In order to make the fertilizer concentration consistent, a storage tank 6 is also provided. A liquid level switch 7 is fixedly connected to the inside of the storage tank 6. The outlet end of the water supply pipe 10 is connected to the inlet 8 of the storage tank 6, and the outlet 9 of the storage tank 6 is connected to the drip irrigation pipe.

[0039] By setting up a storage tank 6 to buffer the liquid, the water and fertilizer of different concentrations are fully mixed to ensure that the concentration is consistent. By setting up two liquid level switches 7 in the storage tank 6, the two liquid level switches 7 are used to detect the upper and lower limits of the liquid level in the storage tank 6, and control the opening and closing of the water supply pipe 10 accordingly to maintain the water storage in the storage tank 6.

[0040] When there is a sufficient height difference between the liquid storage tank 6 and the drip irrigation pipeline, and the water pressure required for drip irrigation is met, drip irrigation can be carried out directly. If the height difference is insufficient, a booster pump needs to be installed on the drip irrigation pipeline to ensure that the water pressure meets the drip irrigation requirements, so as to achieve irrigation smoothly.

[0041] In some embodiments, to avoid clogging of the drip irrigation pipe, a filter module 2 is also included. The filter module 2 includes a centrifugal filter 21 and a disc filter 22 connected in sequence, and the inlet end of the water supply pipe 10 is connected to the outlet end of the disc filter 22.

[0042] When the water source contains a lot of impurities, the water source is filtered sequentially by centrifugal filter 21 and disc filter 22 to avoid clogging of the drip irrigation pipe.

[0043] Please see Figure 6 As shown, in some embodiments, the drive mechanism includes a servo motor 46, a disk 47, and a connecting rod 48. The disk 47 is driven to rotate by the servo motor 46, one end of the connecting rod 48 is rotatably connected to the piston 34, and the other end of the connecting rod 48 is rotatably connected to the disk 47.

[0044] In use, the servo motor 46 drives the disk 47 to rotate, and the disk 47 drives the piston 34 to reciprocate through the connecting rod 48.

[0045] Please see Figure 5 As shown, in some embodiments, in order to enable it to also function as a liquid fertilizer additive, the distance between the conveying pipe 39 and the air inlet pipe 41 is smaller than the diameter of the transfer chamber 35, and a sealing plug is fixedly connected to the end of the air inlet pipe 41 away from the suction pipe 36.

[0046] In use, the piston 34 is driven downward by the drive mechanism, so that one end of the material transfer chamber 35 is connected to the material conveying pipe 39 and the other end is connected to the air inlet pipe 41, and the end of the air inlet pipe 41 away from the suction pipe 36 is sealed with a sealing plug; when water flows through the venturi tube 37, a negative pressure is formed in the suction pipe 36 to draw the liquid fertilizer in the fertilizer storage box 31 into the venturi tube 37.

[0047] Please see Figure 7 As shown, the controller 1, filter module 2 and water-fertilizer mixing module 3 are integrated and fixed on the base 4 to reduce the footprint. At the same time, the base 4 is provided with forklift holes 5 for transportation.

[0048] 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. An integrated intelligent drip irrigation system, characterized in that: The utility model provides a kind of fertilizer supply device, including feed cylinder (42), the outside of the feed cylinder (42) is sequentially connected with feed pipe (39), air inlet pipe (41) and water supply pipe (10) from top to bottom, the inside of the feed cylinder (42) is equipped with piston (34), the middle part of the piston (34) is equipped with material moving cavity (35), the piston (34) is driven reciprocating by driving mechanism, for making material moving cavity (35) sequentially with feed pipe (39), air inlet pipe (41) and water supply pipe (10) link; One side of the water supply pipe (10) is connected with a shunt pipe (38), and the shunt pipe (38) is connected with a Venturi tube (37) in series. The feed pipe (39) is connected with the discharge port of the fertilizer storage tank (31).

2. The integrated intelligent water and fertilizer drip irrigation system according to claim 1, characterized in that: The material moving cavity (35) is an inclined hole, and the lower end of the inclined hole is fixedly connected with a blocking net (49).

3. The integrated intelligent water and fertilizer drip irrigation system according to claim 1, characterized in that: The air inlet pipe (41) is inclined, and the higher end of the air inlet pipe (41) is fixedly connected with a filter screen (40).

4. The integrated intelligent water and fertilizer drip irrigation system according to claim 1, characterized in that: The piston (34) is fixedly connected with a blocking plate (33) at the top of one side close to the feed pipe (39).

5. The integrated intelligent water and fertilizer drip irrigation system according to claim 1, characterized in that: The two ends of the shunt pipe (38) are connected with two sections of water supply pipe (10) located on both sides of the feed cylinder (42), and the end of the feed cylinder (42) away from the feed pipe (39) is connected with the shunt pipe (38).

6. The integrated intelligent water and fertilizer drip irrigation system according to claim 1, characterized in that: The two ends of the bypass pipe (43) are connected with two sections of water supply pipe (10) located on both sides of the feed cylinder (42), and the end of the feed cylinder (42) away from the feed pipe (39) is connected with the bypass pipe (43).

7. The integrated intelligent water and fertilizer drip irrigation system of claim 1, wherein: The water supply pipe (10) is provided with a flow meter (32), and the flow meter (32) and the driving mechanism are electrically connected with the controller (1).

8. The integrated intelligent water and fertilizer drip irrigation system of claim 1, wherein: The device further comprises a liquid storage tank (6), the inner side of the liquid storage tank (6) is fixedly connected with a liquid level switch (7), the liquid outlet end of the water supply pipe (10) is connected with the water inlet (8) of the liquid storage tank (6), and the water outlet (9) of the liquid storage tank (6) is connected with a drip irrigation pipeline.

9. The integrated intelligent water and fertilizer drip irrigation system of claim 1, wherein: The device further comprises a filter module (2), the filter module (2) comprises a centrifugal filter (21) and a disc filter (22) connected in sequence, and the liquid inlet end of the water supply pipe (10) is connected with the liquid outlet end of the disc filter (22).

10. The integrated intelligent water and fertilizer drip irrigation system of claim 1, wherein: The driving mechanism comprises a servo motor (46), a disc (47) and a connecting rod (48), the disc (47) is driven to rotate by the servo motor (46), one end of the connecting rod (48) is rotatably connected with the piston (34), and the other end of the connecting rod (48) is rotatably connected with the disc (47). The distance between the feed pipe (39) and the air inlet pipe (41) is less than the diameter of the material moving cavity (35), and the end of the air inlet pipe (41) away from the suction pipe (36) is fixedly connected with a sealing plug.

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