An automatic constant pressure method for water and fertilizer irrigation system

Abstract

The present invention discloses an automatic constant pressure method for a water and fertilizer irrigation system. The system includes a liquid supply pool, a pump station and an irrigation area connected in sequence. The pump station includes two liquid outlets, namely a first liquid outlet and a second liquid outlet. The first liquid outlet and the second liquid outlet are respectively connected to the two ends of the irrigation area to form a ring structure; the system also includes a recovery pool. The irrigation system uses two liquid outlets to implement irrigation from both ends of the irrigation area, which overcomes the problem of insufficient pressure when the plot is far away from the liquid supply pool, so that the pressure of each part of the irrigation area is automatically balanced, avoiding the waste of water and fertilizer. At the same time, the system has a recovery pool, which can clean the pipeline on the one hand, and recycle the water and fertilizer in the pipeline on the other hand, and also avoid environmental pollution. At the same time, the two liquid outlets supply water and fertilizer together, and small-diameter pipelines can be used to save costs.

Description

[0001] Parent case application: 2020111396667 An automatic constant pressure water and fertilizer irrigation system. Technical Field

[0002] The invention relates to the field of irrigation, in particular to an automatic constant pressure method for a water and fertilizer irrigation system. Background Art

[0003] The integration of water, fertilizer and medicine is a new agricultural technology that integrates irrigation, fertilization and pest control. It is a system that uses the Xinzhu automatic constant pressure system to mix soluble solid or liquid fertilizers according to the soil nutrient content and the fertilizer requirements and characteristics of the crop types. The fertilizer solution is mixed with irrigation water and injected evenly and accurately into the soil in the root area of ​​the crop through the fertilizer gun, thereby ensuring the water and nutrients needed by the crop.

[0004] The water and fertilizer irrigation systems in the prior art all use a single liquid outlet to irrigate the area that needs irrigation through an irrigation pipe. As the distance increases, the plots of land far away from the liquid supply pool will not be irrigated normally to the corresponding plots due to insufficient pressure, resulting in water and fertilizer being retained in the irrigation pipe, causing waste of water and fertilizer, and may also pollute the pipe. Summary of the invention

[0005] The present invention mainly provides an automatic constant pressure method for an irrigation system, which can solve the problem in the prior art that water and fertilizer cannot be normally irrigated to corresponding plots of land and remain in irrigation pipes, causing waste of water and fertilizer and possibly polluting the pipes.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is to provide an automatic constant pressure method for a water and fertilizer irrigation system.

[0007] The water and fertilizer irrigation system comprises a liquid supply pool YC1, a pump station HB and an irrigation area 7 connected in sequence, and the method comprises:

[0008] Two liquid outlets are provided in the pump station HB, namely a first liquid outlet and a second liquid outlet, and the first liquid outlet and the second liquid outlet are respectively connected to two ends of the irrigation area 7 to form a ring structure;

[0009] The first liquid outlet is connected to one end of the irrigation area through the first irrigation pipe 1, the other end of the irrigation area is connected to the second liquid outlet through the third irrigation pipe 3, the liquid supply pool YC1 is connected to the pump station HB through the second irrigation pipe 2, and an intelligent water fertilizer machine is provided in the liquid supply pool;

[0010] The water, fertilizer or nutrient solution is provided to the irrigation area 7 through the liquid supply pool YC1, and the water, fertilizer or nutrient solution is pressurized when flowing through the pump station HB;

[0011] The irrigation area 7 includes a plurality of partitioned plots, and adjacent plots are connected by irrigation pipes. A switch connector FC is provided on the irrigation pipes near each plot. Each plot corresponds to different irrigation needs. The plot to be irrigated is selected and controlled through the switch connection. Preferably, an automatic constant pressure method for a water and fertilizer irrigation system, a first pump station ball valve K1 is provided on the second irrigation pipe 2, a fourth pump station ball valve K4 is provided on the first irrigation pipe 1 near the first liquid outlet, and a third pump station ball valve K3 is provided on the third irrigation pipe 3 near the second liquid outlet.

[0012] Preferably, an automatic constant pressure method for a water and fertilizer irrigation system, the system also includes a recovery tank YC2, the recovery tank YC2 is connected to the pump station HB through a fourth irrigation pipe 4, the recovery tank YC2 is connected to the first irrigation pipe 1 between the first pump station ball valve K1 and the irrigation area 7 through a fifth irrigation pipe 5, the recovery tank YC2 is connected to the third irrigation pipe 3 between the third pump station ball valve K3 and the irrigation area 7 through a sixth irrigation pipe 6; the second pump station ball valve K2, the fifth pump station ball valve K5 and the sixth pump station ball valve K6 are respectively provided on the fourth irrigation pipe 4, the fifth irrigation pipe 5 and the sixth irrigation pipe 6.

[0013] Preferably, in an automatic constant pressure method for a water and fertilizer irrigation system, the first irrigation pipe 1 and the third irrigation pipe 3 are both provided with a laminated filter and / or an automatic backwashing medium filter.

[0014] Preferably, in an automatic constant pressure method for a water and fertilizer irrigation system, flow meters are provided on the first irrigation pipe 1 and the third irrigation pipe 3 .

[0015] Preferably, in an automatic constant pressure method for a water and fertilizer irrigation system, the switch connector FC is connected to a mobile hose, a pesticide gun and / or a fertilizer gun.

[0016] Preferably, an automatic constant pressure method for a water and fertilizer irrigation system, the system also includes a weather station, a field wireless controller and a management system, the weather station and the field wireless controller are connected to the management system via a wireless network.

[0017] Preferably, an automatic constant pressure method for a water and fertilizer irrigation system, wherein an intelligent water and fertilizer machine and a controller are provided in the liquid supply pool, and the controller is connected to the management system via a wireless network.

[0018] Preferably, an automatic constant pressure method for a water and fertilizer irrigation system, the weather station is provided with a storage battery and a solar panel, and the storage battery and the solar panel are connected.

[0019] The beneficial effects of the present invention are as follows: (1) Different from the prior art, the present invention uses two liquid outlets to implement irrigation from both ends of the irrigation area, thereby overcoming the problem of insufficient pressure when the land is far away from the liquid supply tank, so that the pressure of each part of the irrigation area is automatically balanced, avoiding water and fertilizer being retained in the pipeline, causing waste and polluting the pipeline; (2) At the same time, the system has its own recovery pool, which can not only clean the pipeline, but also recycle the water and fertilizer in the pipeline, thus avoiding environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of an automatic constant pressure water and fertilizer irrigation system in the present invention;

[0021] Figure 2 It is a schematic diagram of block irrigation in an automatic constant pressure water and fertilizer irrigation system of the present invention;

[0022] Figure 3 It is a schematic diagram of an automatic constant pressure water and fertilizer irrigation system with a recovery tank in the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and beneficial effects of the present invention clearer and more complete, the present invention is further described in the following embodiments in conjunction with the accompanying drawings.

[0024] Example 1

[0025] In an exemplary embodiment, an automatic constant pressure water and fertilizer irrigation system comprises a liquid supply tank YC1, a pump station HB and an irrigation area 7 connected in sequence, wherein the pump station HB comprises two liquid outlets, namely a first liquid outlet and a second liquid outlet, wherein the first liquid outlet and the second liquid outlet are respectively connected to the two ends of the irrigation area (7) to form a ring structure; the first liquid outlet is connected to one end of the irrigation area through a first irrigation pipe 1, and the other end of the irrigation area is connected to the second liquid outlet through a third irrigation pipe 3; the liquid supply tank YC1 is connected to the pump station HB through a second irrigation pipe 2. A first pump station ball valve K1 is provided on the second irrigation pipe 2, a fourth pump station ball valve K4 is provided on the first irrigation pipe 1 near the first liquid outlet, and a third pump station ball valve K3 is provided on the third irrigation pipe 3 near the second liquid outlet.

[0026] The implementation principle of the irrigation system is: according to the needs of water, fertilizer and medicine in the irrigation area 7, the water, fertilizer or nutrient solution etc. required by the irrigation area 7 is provided through the liquid supply tank YC1; the liquid flowing out of the liquid supply tank YC1 is pressurized by the pump station HB and then flows to the irrigation area 7 through the first liquid outlet and the second liquid outlet at the same time. This irrigation method forms a loop between the liquid supply tank YC1 and the irrigation area 7, replacing the traditional method of only from the liquid supply tank YC1 to the irrigation area 7.

[0027] Furthermore, the loop irrigation method makes the pressure at each position in the pipeline consistent, and the corresponding pressure of the irrigation area 7 is constant regardless of how far it is from the pump station HB, achieving the effect of automatic constant pressure in the entire irrigation loop, avoiding the problem of insufficient pressure causing water and fertilizer to be retained in the pipeline when irrigating a distant position, causing waste and pollution of the pipeline.

[0028] Furthermore, in an automatic constant pressure water and fertilizer irrigation system, a first pump station ball valve K1 is provided on the second irrigation pipeline 2, a fourth pump station ball valve K4 is provided on the first irrigation pipeline 1 near the first liquid outlet, and a third pump station ball valve K3 is provided on the third irrigation pipeline 3 near the second liquid outlet. Irrigation is controlled by controlling the first pump station ball valve K1, the third pump station ball valve K3 and the fourth pump station ball valve K4.

[0029] Example 2

[0030] In reality, the irrigation area 7 may not be a planting site for the same crop, but may be a planting site for multiple crops or vegetation, and each crop has different requirements for water and fertilizer. This embodiment provides an automatic constant pressure water and fertilizer irrigation system, including a liquid supply tank YC1, a pump station HB and an irrigation area 7 connected in sequence, the pump station HB includes two liquid outlets, namely a first liquid outlet and a second liquid outlet, the first liquid outlet is connected to one end of the irrigation area through a first irrigation pipe 1, and the other end of the irrigation area is connected to the second liquid outlet through a third irrigation pipe 3; the liquid supply tank YC1 is connected to the pump station HB through a second irrigation pipe 2.

[0031] Furthermore, if Figure 2 As shown, the irrigation area 7 includes a plurality of partitioned plots, and adjacent plots are connected by irrigation pipes. A switch connector FC is provided on the irrigation pipe near each plot.

[0032] The irrigation area 7 includes multiple plots, each of which has a corresponding switch connector FC1, FC2, ..., FCn. The switch connector controls the start / end of irrigation for each plot. The advantage of this irrigation system is that the plots are divided according to different crops and different types of vegetation. At this time, the water, fertilizer, and medicine required for each plot are different. When irrigating one of the plots, we choose to close the switch connectors at other plots. When each plot needs to be watered, all the switch connectors are turned on at the same time for irrigation, so as to achieve flexible control and avoid waste and incorrect irrigation.

[0033] The switch connector may be an existing solenoid valve or other switch control device.

[0034] Example 3

[0035] In an irrigation system, it is difficult to avoid the waste of water and fertilizer. This embodiment provides an automatic constant pressure water and fertilizer irrigation system with a recovery tank, comprising a liquid supply tank YC1, a pump station HB and an irrigation area 7 connected in sequence, wherein the pump station HB comprises two liquid outlets, namely a first liquid outlet and a second liquid outlet, wherein the first liquid outlet and the second liquid outlet are respectively connected to the two ends of the irrigation area (7) to form a ring structure; the first liquid outlet is connected to one end of the irrigation area through a first irrigation pipe 1, and the other end of the irrigation area is connected to the second liquid outlet through a third irrigation pipe 3; the liquid supply tank YC1 is connected to the pump station HB through a second irrigation pipe 2.

[0036] A first pump station ball valve K1 is provided on the second irrigation pipeline 2, a fourth pump station ball valve K4 is provided on the first irrigation pipeline 1 near the first liquid outlet, and a third pump station ball valve K3 is provided on the third irrigation pipeline 3 near the second liquid outlet.

[0037] Furthermore, if Figure 3 As shown, an automatic constant pressure water and fertilizer irrigation system, the system also includes a recovery tank YC2, the recovery tank YC2 is connected to the pump station HB through a fourth irrigation pipe 4, the recovery tank YC2 is connected to the first irrigation pipe 1 between the first pump station ball valve K1 and the irrigation area 7 through a fifth irrigation pipe 5, the recovery tank YC2 is connected to the third irrigation pipe 3 between the third pump station ball valve K3 and the irrigation area 7 through a sixth irrigation pipe 6; the second pump station ball valve K2, the fifth pump station ball valve K5 and the sixth pump station ball valve K6 are respectively provided on the fourth irrigation pipe 4, the fifth irrigation pipe 5 and the sixth irrigation pipe 6.

[0038] Furthermore, in an automatic constant pressure water and fertilizer irrigation system, the first irrigation pipe 1 and the third irrigation pipe 3 are both provided with a laminated filter and / or an automatic backwashing medium filter.

[0039] Further, the system works as follows:

[0040] During irrigation: open the ball valve K1 of the first pumping station, the ball valve K3 of the third pumping station and the ball valve K4 of the fourth pumping station, close the ball valve K2 of the second pumping station, the ball valve K5 of the fifth pumping station and the ball valve K6 of the sixth pumping station, and after the water and fertilizer are mixed in the liquid supply pool YC1, they are pressurized by the pumping station HB through the ball valve K1 of the first pumping station, and then supplied to each plot through the ball valve K3 of the third pumping station and the ball valve K4 of the fourth pumping station.

[0041] When cleaning the pipeline: the ball valve K1 of the first pumping station, the ball valve K3 of the third pumping station and the ball valve K5 of the fifth pumping station are opened, the ball valve K2 of the second pumping station, the ball valve K4 of the fourth pumping station and the ball valve K6 of the sixth pumping station are closed, and the clean water is pressurized by the pumping station HB and then passes through the ball valve K3 of the third pumping station, and the remaining water and fertilizer in the pipeline are flushed to the recovery pool YC2 through the ball valve K5 of the fifth pumping station.

[0042] When recycling: close the ball valve K1 of the first pumping station, the ball valve K4 of the fourth pumping station, the ball valve K5 of the fifth pumping station and the ball valve K6 of the sixth pumping station, open the ball valve K2 of the second pumping station and the ball valve K3 of the third pumping station, and the water and fertilizer in the recovery pool YC2 are pressurized by the pumping station HB through the ball valve K2 of the second pumping station and supplied to the plots close to the pumping station HB for use, avoiding waste and pollution.

[0043] Example 4

[0044] In order to strengthen the intelligent control of the system, an automatic constant pressure water and fertilizer irrigation system is provided, comprising a liquid supply tank YC1, a pump station HB and an irrigation area 7 connected in sequence, wherein the pump station HB comprises two liquid outlets, namely a first liquid outlet and a second liquid outlet, wherein the first liquid outlet and the second liquid outlet are respectively connected to the two ends of the irrigation area (7) to form a ring structure; the first liquid outlet is connected to one end of the irrigation area through a first irrigation pipe 1, and the other end of the irrigation area is connected to the second liquid outlet through a third irrigation pipe 3; the liquid supply tank YC1 is connected to the pump station HB through a second irrigation pipe 2.

[0045] Furthermore, an automatic constant pressure water and fertilizer irrigation system is provided, wherein a first pump station ball valve K1 is provided on the second irrigation pipe 2, a fourth pump station ball valve K4 is provided on the first irrigation pipe 1 near the first liquid outlet, and a third pump station ball valve K3 is provided on the third irrigation pipe 3 near the second liquid outlet.

[0046] Furthermore, in an automatic constant-pressure water-fertilizer irrigation system, flow meters are provided on the first irrigation pipe 1 and the third irrigation pipe 3 .

[0047] Furthermore, in an automatic constant pressure water and fertilizer irrigation system, the switch connector FC is connected to a mobile hose, a pesticide spraying gun and / or a fertilizer gun. The mobile hose, the pesticide spraying gun and / or the fertilizer gun are used to irrigate the plot of land in detail, including fertilizing the roots or surfaces of crops.

[0048] Furthermore, an automatic constant pressure water and fertilizer irrigation system, the system also includes a weather station, a field wireless controller and a management system, the weather station and the field wireless controller are connected to the management system via a wireless network, real-time monitoring of the plot environment, and reasonable formulation of fertilization plans.

[0049] Furthermore, an automatic constant pressure water and fertilizer irrigation system is provided, wherein the liquid supply pool is provided with an intelligent water and fertilizer machine and a controller, and the controller is connected to the management system via a wireless network, forming an intelligent control system for convenient management and operation.

[0050] Furthermore, an automatic constant-pressure water-fertilizer irrigation system is provided, wherein the weather station is provided with a storage battery and a solar panel, and the storage battery and the solar panel are connected.

[0051] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic constant pressure method for a water and fertilizer irrigation system, the water and fertilizer irrigation system comprising a liquid supply tank YC1, a pump station HB and an irrigation area (7) connected in sequence, characterized in that: The method comprises: The pump station HB is provided with two liquid outlets, namely a first liquid outlet and a second liquid outlet, wherein the first liquid outlet and the second liquid outlet are respectively connected to two ends of the irrigation area (7) to form a ring structure; The first liquid outlet is connected to one end of the irrigation area through a first irrigation pipeline (1), the other end of the irrigation area is connected to the second liquid outlet through a third irrigation pipeline (3), the liquid supply pool YC1 is connected to the pump station HB through a second irrigation pipeline (2), and an intelligent water fertilizer machine is arranged in the liquid supply pool; The water, fertilizer or nutrient solution is provided to the irrigation area (7) through the liquid supply pool YC1, and the water, fertilizer or nutrient solution is pressurized when flowing through the pump station HB; The liquid flowing out of the liquid supply tank YC1 is pressurized by the pump station HB and then flows to the irrigation area (7) through the first liquid outlet and the second liquid outlet. The irrigation area (7) includes a plurality of partitioned plots, and adjacent plots are connected by irrigation pipes. A switch connector FC is provided on the irrigation pipe near each plot. Each plot corresponds to different irrigation needs, and the plot to be irrigated is selected and controlled by the switch connector FC; a first pump station ball valve K1 is provided on the second irrigation pipe (2), a fourth pump station ball valve K4 is provided on the first irrigation pipe (1) near the first liquid outlet, and a third pump station ball valve K3 is provided on the third irrigation pipe (3) near the second liquid outlet; The system further comprises a recovery tank YC2, wherein the recovery tank YC2 is connected to the pump station HB via a fourth irrigation pipeline (4), the recovery tank YC2 is connected to the first irrigation pipeline (1) between the fourth pump station ball valve K4 and the irrigation area (7) via a fifth irrigation pipeline (5), and the recovery tank YC2 is connected to the third irrigation pipeline (3) between the third pump station ball valve K3 and the irrigation area (7) via a sixth irrigation pipeline (6); the second pump station ball valve K2, the fifth pump station ball valve K5 and the sixth pump station ball valve K6 are respectively provided on the fourth irrigation pipeline (4), the fifth irrigation pipeline (5) and the sixth irrigation pipeline (6); When cleaning the pipeline: the ball valve K1 of the first pump station, the ball valve K3 of the third pump station and the ball valve K5 of the fifth pump station are opened, the ball valve K2 of the second pump station, the ball valve K4 of the fourth pump station and the ball valve K6 of the sixth pump station are closed, and the clean water is pressurized by the pump station HB and then passes through the ball valve K3 of the third pump station, and the remaining water and fertilizer in the pipeline are flushed to the recovery pool YC2 through the ball valve K5 of the fifth pump station; When recycling: close the ball valve K1 of the first pumping station, the ball valve K4 of the fourth pumping station, the ball valve K5 of the fifth pumping station and the ball valve K6 of the sixth pumping station, open the ball valve K2 of the second pumping station and the ball valve K3 of the third pumping station, and the water and fertilizer in the recovery pool YC2 are pressurized by the pumping station HB through the ball valve K2 of the second pumping station and supplied to the plots close to the pumping station HB for use, avoiding waste and pollution.

2. The automatic constant pressure method for a water and fertilizer irrigation system according to claim 1, characterized in that: The first irrigation pipeline (1) and the third irrigation pipeline (3) are both provided with a laminated filter and / or an automatic backwashing medium filter.

3. The automatic constant pressure method for a water and fertilizer irrigation system according to claim 1, characterized in that: The first irrigation pipeline (1) and the third irrigation pipeline (3) are both provided with flow meters.

4. The automatic constant pressure method for a water and fertilizer irrigation system according to claim 1, characterized in that: The switch connector FC is connected to a mobile hose, a pesticide spraying gun and / or a fertilizer gun.

5. The automatic constant pressure method for a water and fertilizer irrigation system according to claim 1, characterized in that: The system also includes a weather station, a field wireless controller and a management system. The weather station and the field wireless controller are connected to the management system via a wireless network.

6. The automatic constant pressure method for a water and fertilizer irrigation system according to claim 5, characterized in that: The liquid supply tank YC1 is also provided with a controller, and the controller is connected to the management system via a wireless network.

7. The automatic constant pressure method for a water and fertilizer irrigation system according to claim 5, characterized in that: The weather station is provided with a storage battery and a solar panel, and the storage battery and the solar panel are connected.

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