Venturi type water and fertilizer all-in-one machine

Abstract

The utility model relates to a venturi type water and fertilizer all-in-one machine which comprises a water inlet pipe, a liquid outlet pipe, a fertilizer pipe, a venturi pipe, a fertilizer box and a mixing box, a first pump machine is arranged in the water inlet pipe, a water outlet of the first pump machine is connected with branch pipelines, each branch pipeline is internally provided with a first electromagnetic valve for controlling connection and disconnection, one branch pipeline is directly communicated with the liquid outlet pipe, and the other branch pipeline is directly communicated with the venturi pipe. The other branch pipelines are connected with liquid inlets of the Venturi tubes, the throat portions of the Venturi tubes are connected with an external independent fertilizer box through fertilizer tubes, second electromagnetic valves for controlling on-off, flow meters for recording the flow speed and water meters for recording the flow are arranged in the fertilizer tubes, and liquid outlets of the Venturi tubes are connected with a collecting pipe in a confluence mode. The collecting pipe is connected to a mixing box, and an outlet of the mixing box is connected with a liquid outlet valve and a liquid outlet pipe. By means of the structure, self-suction type blending of the fertilizer is achieved, the amount of the fertilizer is effectively controlled according to the flow meter and the water meter, fertilizer blending is accurate and reliable, and waste of water resources and the fertilizer is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of fertilization equipment and is a Venturi type water and fertilizer integrated machine. Background Technique

[0002] A water and fertilizer integrated machine refers to an agricultural equipment that combines irrigation and fertilization. Usually, according to the pressure system, soluble solid or liquid fertilizers are formulated into the required fertilizer solution according to the nutrient content of the soil and the fertilizer requirement rules and characteristics of crop varieties, and are evenly sprayed or drip-irrigated and fertilized regularly and quantitatively along with the irrigation system. The existing water and fertilizer integration, such as the invention patent with the publication number CN118451883A published in the Chinese patent literature on August 9, 2024, and the invention patent name of "an intelligent water and fertilizer integrated machine based on the crop growth cycle", includes temperature control, a terminal controller, a water delivery pipeline, a fertilizer pipeline and an actuator. The water delivery pipeline includes a centrifugal pump, a flowmeter one, and a float valve in three parts. The fertilizer pipeline includes a liquid fertilizer tank, a filter, an injection pump, and a regulating valve in three parts. It can be known from its disclosure that the preparation of fertilizers is realized by relying on the regulating valve and the injection pump. This kind of structure is relatively complex, and the injection pump requires a separate power supply and control unit, and the overall cost investment is relatively large. Therefore, it is necessary to improve the existing water and fertilizer integrated machine, especially the fertilizer preparation and conveying structure. Summary of the Invention

[0003] To overcome the above deficiencies, the purpose of the utility model is to provide a Venturi type water and fertilizer integrated machine to the field, so as to solve the technical problems of the relatively complex fertilizer preparation and conveying structure and the relatively high cost investment in the existing similar water and fertilizer integrated structures. Its purpose is achieved through the following technical solutions.

[0004] A Venturi type water and fertilizer integrated machine, which includes a water inlet pipe, a liquid outlet pipe, a fertilizer pipe, a Venturi tube, a fertilizer tank, and a mixing tank. A first pump is provided in the water inlet pipe; the key point of its structure is that the water outlet of the first pump is connected to a branch pipeline, and a first solenoid valve for controlling on-off is provided in each branch pipeline. One of the branch pipelines is directly communicated with the liquid outlet pipe, and the remaining branch pipelines are all connected to the liquid inlet of the Venturi tube. The throat of each Venturi tube is connected to an external independent fertilizer tank through a fertilizer pipe, and a second solenoid valve for controlling on-off, a flowmeter for recording the flow rate, and a water meter for recording the flow are provided in each fertilizer pipe. The liquid outlets of each Venturi tube are converged and connected to a converging pipe, and the converging pipe is connected to the mixing tank. The outlet of the mixing tank is connected to a liquid outlet valve and the liquid outlet pipe. Through the above structure, the self-priming preparation of fertilizers is realized by using the Venturi tube, and the effective control of the fertilizer amount is achieved according to the flowmeter and the water meter. The fertilizer preparation is relatively accurate and reliable, which is beneficial to reducing the waste of water resources and fertilizers and realizing efficient automatic fertilization operation.

[0005] The mixing tank is provided with a pH sensor, a liquid level sensor and an exhaust valve. With this structure, it is convenient to observe the pH value and water level in the mixing tank, and it is also convenient for the pressure relief and exhaust operation of the mixing tank.

[0006] The water inlet pipe and / or the liquid outlet pipe are both provided with a pressure gauge and a flow meter. With this structure, the liquid passing situation of the water inlet pipe and the liquid outlet pipe can be effectively monitored, so as to timely close or adjust the liquid supply.

[0007] The outlet of the mixing tank is connected to the liquid outlet valve and then to the second pump. The outlet of the second pump is connected to the liquid outlet pipe. The first pump and the second pump are both connected to a frequency conversion controller. The frequency conversion controller is in control connection with the first solenoid valve, the second solenoid valve, the flow velocity meter, the water meter, the liquid level sensor, the pH sensor, the pressure gauge and the flow meter, and the frequency conversion controller is externally connected to a human-computer interaction display. With this structure, it is convenient to set and display control parameters by relying on the human-computer interaction display. The frequency conversion controller realizes the frequency conversion control of the pump, and the deployment is relatively accurate and reliable.

[0008] A check valve is provided in the fertilizer pipe. With this structure, it can prevent the reverse flow of the fertilizer pipe from affecting the concentration of the fertilizer.

[0009] The overall structure of the present utility model is relatively simple, the cost investment is low, the use is intelligent and convenient, it can effectively realize the self-priming deployment of the fertilizer, and the deployment is relatively accurate and reliable, effectively reducing the waste of fertilizer and water resources. It is suitable for use as a water and fertilizer integrated machine in the agricultural field or the improvement of similar structures. Description of the Drawings

[0010] Figure 1 is a schematic diagram of the pipeline structure of the present utility model.

[0011] The numbers and names in the figure are: 1. Water inlet pipe, 2. First pump, 3. Branch pipeline, 4. First solenoid valve, 5. Venturi tube, 6. Check valve, 7. Flow velocity meter, 8. Second solenoid valve, 9. Water meter, 10. Fertilizer tank, 11. Mixing tank, 12. pH sensor, 13. Liquid level sensor, 14. Liquid outlet valve, 15. Second pump, 16. Liquid outlet pipe. Embodiment

[0012] Now in combination with the drawings, the present utility model will be further described.

[0013] As Figure 1As shown in the figure, the Venturi - type water - fertilizer integrated machine includes a water inlet pipe 1, a liquid outlet pipe 16, a fertilizer pipe, a Venturi tube 5, a fertilizer tank 10, and a mixing tank 11. The water inlet pipe 1 and the liquid outlet pipe 16 are both equipped with a pressure gauge and a flow meter. A first pump 2 is provided in the water inlet pipe 1. The water outlet of the first pump 2 is connected to a branch pipeline 3. A first solenoid valve 4 for controlling on - off is provided in each branch pipeline 3. One of the branch pipelines 3 is directly connected to the liquid outlet pipe 16, and the remaining branch pipelines 3 are all connected to the liquid inlet of a Venturi tube 5. The throats of each Venturi tube 5 are connected to an external independent fertilizer tank 10 through a fertilizer pipe, and a second solenoid valve 8 for controlling on - off, a flow meter 7 for recording the flow rate, a water meter 9 for recording the flow, and a check valve 6 for preventing back - flow are provided in each fertilizer pipe; the liquid outlet of the Venturi tube 5 is connected back to a confluence pipe, and the confluence pipe is connected to the mixing tank 11. The mixing tank 11 is provided with a water level sensor for monitoring the water level, a pH sensor 12 for monitoring the pH value, and an exhaust valve for exhausting air. The outlet of the mixing tank 11 is successively connected to a liquid outlet valve 14 and a second pump 15, and the outlet of the second pump 15 is connected to the liquid outlet pipe 16.

[0014] The above - mentioned first pump 2 and second pump 15 are both connected to a frequency - conversion controller. The frequency - conversion controller is in control connection with the first solenoid valve 4, the second solenoid valve 8, the flow meter 7, the water meter 9, the liquid - level sensor 13, the pH sensor 12, and the pressure gauges and flow meters of the water inlet pipe 1 and the liquid outlet pipe 16, and the frequency - conversion controller is externally connected to a human - machine interaction display. Through the human - machine interaction display, it is convenient to display and set the current control parameters of the water - fertilizer. The frequency - conversion controller controls the working frequency of the pump according to the parameter values set by the human - machine interaction display, so as to achieve precise allocation of the liquid supply.

[0015] The usage method of the Venturi - type water - fertilizer integrated machine is as follows: When it is necessary to prepare the fertilizer, just open the second solenoid valve 8 in the fertilizer pipe of the corresponding fertilizer and the first solenoid valve 4 in the branch pipeline 3 corresponding to the fertilizer pipe through the human - machine interaction display as required. By controlling the liquid - supply pressure of the first pump 2, the fertilizer - suction pressure of the Venturi tube 5 in the branch pipeline 3 can be achieved, and the fertilizer - suction operation as required can be realized. After the fertilizer is mixed with water, it enters the mixing tank 11 for further uniform mixing. When the liquid level and pH value in the mixing tank 11 meet the set high - value, open the liquid outlet valve 14 and start the second pump 15. The second pump 15 realizes the pressurization operation, and the water - fertilizer is applied through the liquid outlet pipe 16. When the liquid level and pH value in the mixing tank 11 are lower than the set low - value, the human - machine interaction display closes the liquid outlet valve 14 and the second pump 15. When there is no need for fertilization and only watering operation is required, just open the first solenoid valve 4 in the branch pipeline 3 directly connected to the liquid outlet pipe 16 through the human - machine interaction display, and the direct water - supply operation can be realized, which is relatively convenient to use.

[0016] The above content is intended to illustrate the technical means of the present utility model and does not limit the technical scope of the present utility model. Obvious improvements or replacements made by those skilled in the art to the present utility model in combination with the existing well-known common knowledge also fall within the protection scope of the claims of the present utility model.

Claims

1. A Venturi-type integrated water and fertilizer machine, comprising a water inlet pipe (1), a liquid outlet pipe (16), a fertilizer pipe, a Venturi pipe (5), a fertilizer tank (10), and a mixing box (11), wherein a first pump (2) is provided in the water inlet pipe (1); characterized in that The water outlet of the first pump (2) is connected to a branch pipeline (3), each branch pipeline (3) is provided with a first electromagnetic valve (4) for controlling on and off, one branch pipeline (3) is directly connected to the liquid outlet pipe (16), and the other branch pipelines (3) are connected to the liquid inlet of the venturi tube (5), the throat of each venturi tube (5) is connected to an external independent fertilizer tank (10) through a fertilizer pipe, and each fertilizer pipe is provided with a second electromagnetic valve (8) for controlling on and off, a flow meter (7) for recording flow rate, and a water meter (9) for recording flow rate, the liquid outlets of each venturi tube (5) are connected to a confluence pipe, the confluence pipe is connected to the mixing box (11), and the outlet of the mixing box (11) is connected to the liquid outlet valve (14) and the liquid outlet pipe (16).

2. The Venturi type water-fertilizer integrated machine according to claim 1, characterized in that The mixing box is provided with a pH sensor (12), a liquid level sensor (13) and an exhaust valve.

3. The Venturi type water-fertilizer integrated machine according to claim 2, characterized in that The water inlet pipe (1) and / or the liquid outlet pipe (16) is provided with a pressure gauge and a flow meter.

4. The Venturi type water-fertilizer integrated machine according to claim 3, characterized in that The outlet of the mixing box is connected to the liquid outlet valve (14) and then to the second pump (15). The outlet of the second pump (15) is connected to the liquid outlet pipe (16). The first pump (2) and the second pump (15) are both connected to a frequency conversion controller. The frequency conversion controller forms a control connection with the first solenoid valve (4), the second solenoid valve (8), the flow meter (7), the water meter (9), the liquid level sensor (13), the pH sensor (12), the pressure gauge, and the flow meter. The frequency conversion controller is externally connected to a human-machine interactive display.

5. The Venturi type water-fertilizer integrated machine according to claim 1, characterized in that A one-way valve (6) is provided in the fertilizer pipe.

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