Efficient drip irrigation pipe network system for field automation

Abstract

The invention relates to the technical field of water-saving irrigation, in particular to an efficient drip irrigation pipe network system for field automation. Comprising a drip irrigation pipe network, each out-of-ground pile is provided with a valve control device, and each out-of-ground pile is connected with two control valves through a ground tee joint; the two control valves are connected with a valve control device through signal lines respectively, and low-pressure small-flow drip irrigation belts are laid on the short branch pipes and the long branch pipes according to crop planting intervals. And the long branch pipe and the short branch pipe are symmetrically arranged in an I shape. Compared with the prior art, through comprehensive optimization of a pipe network and automatic control of a valve, water and fertilizer can be accurately supplied in real time, and the requirements of field crops for water and nutrients are met; meanwhile, the control area of a single valve is remarkably increased, the number of control valves is reduced, the input cost and the construction cost of a field irrigation pipe network system are greatly reduced, and technical support is provided for large-scale and industrial application of a field drip irrigation automation technology.

Description

Technical Field

[0001] The invention relates to the technical field of water-saving irrigation, and in particular to a high-efficiency drip irrigation pipe network system for field automation. Background Art

[0002] As a high-efficiency irrigation technology with obvious high-efficiency water-saving, fertilizer-saving, labor-saving, and increased production and efficiency, field water-saving drip irrigation technology is not only recognized by users, but also has been widely used. Field drip irrigation automation technology is developed on the basis of drip irrigation technology, which provides new technical methods for precise irrigation, fertilization and scientific management of drip irrigation technology. Through the investigation of some drip irrigation automation examples, it was found that although the field drip irrigation automation technology has achieved the goals of saving water, fertilizer, labor and increasing production to a certain extent in actual application, there are still some shortcomings. On the one hand, the one-time investment cost of the automation control system is relatively high. According to the analysis of the automated application drip irrigation project, the field automation control valves and their accessories account for more than 60% of the total investment cost. The benefits after automatic control are lower than the cost of the drip irrigation automation system, and users are unwilling to accept it. In addition, the general field drip irrigation automation application is more used as a small and medium-sized demonstration or production application, and it cannot fully realize large-scale and industrialized application, and it cannot provide users with a wider range of applications. In view of this, optimizing the drip irrigation pipe network system and reducing the number of control valves and investment costs are key issues that need to be urgently solved for the large-scale and industrialized application of field drip irrigation automation systems. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide an efficient drip irrigation pipe network system for field automation, and comprehensively optimize the drip irrigation pipe network system. Two aspects are considered: first, a small flow drip irrigation belt is selected to extend the single-side laying length to reduce the number of branch pipes and effectively reduce the number of control valves; second, a "one support, two valves and four branches" system mode shared by a water plug is selected. By increasing the area of ​​a single control valve, the number of branch pipes can be effectively reduced, and the number of control valves can be reduced, thereby greatly reducing the cost. Through the comprehensive optimization of the pipe network and the automatic control of the valve, the real-time and accurate supply of water and fertilizer can be achieved to meet the needs of field crops for water and nutrients. At the same time, the investment cost and construction cost of the irrigation pipe network system are significantly reduced. It has the characteristics of saving water, fertilizer, labor, increasing production and efficiency, and providing technical support for the large-scale and industrialized application of field drip irrigation automation technology.

[0004] To achieve the above object, a technical solution adopted by the present invention is as follows: A high-efficiency drip irrigation pipe network system for field automation, comprising a drip irrigation pipe network composed of a water source, a water pump unit, a filtering and fertilizing device, a main pipe, a branch pipe, a ground pile, a branch pipe, a drip irrigation belt and a pipe connector. The main pipe is connected to each branch pipe through a main pipe connector and a branch pipe control valve, and a branch pipe drainage valve is connected to the end of each branch pipe. Each ground pile is equipped with a valve control device, and each ground pile is connected to two control valves through a ground tee. The two control valves are connected to the valve control device through a signal line, and one end of one control valve is connected to the valve control device through a connection. The connector is connected to the ground tee, and the other end is connected to the vertical port of the branch tee through the connector. The two ends of the horizontal end of the branch tee are connected to the external thread, the male thread socket straight-through and the short branch pipe in sequence. The short branch pipe is laid with a low-pressure and low-flow drip irrigation belt according to the crop planting spacing; one end of the other control valve is connected to the ground tee through the connector, and the other end is connected to the vertical port of the branch tee through the connector. The two ends of the horizontal end of the branch tee are connected to the external thread, the male thread socket straight-through and the long branch pipe in sequence. The low-pressure and low-flow drip irrigation belt is laid on the long branch pipe according to the crop planting spacing; the long branch pipe and the short branch pipe are symmetrically arranged in an I-shape. Thereby reducing the number of control valves, effectively increasing the irrigation area of ​​the control valve, achieving the purpose of optimizing the rotation irrigation management of the irrigation area, and saving the system cost.

[0005] In the above-mentioned efficient drip irrigation pipe network system for field automation, the length of the long branch pipe is twice the length of the short branch pipe. The short branch pipes on both sides of the long branch pipe tee only play a role in water transmission, and no capillary pipes are laid.

[0006] In the above-mentioned efficient drip irrigation pipe network system for field automation, the short branch pipe drives the capillary tubes laid on the inner side of the irrigation area; the long branch pipe drives the capillary tubes laid on the outer side of the pipe network system.

[0007] The above-mentioned high-efficiency drip irrigation pipe network system for field automation, wherein the valve control device includes: a valve controller, an antenna, a battery and a solar photovoltaic panel for charging the battery; the solar photovoltaic panel is connected to the battery through wires, the battery is connected to the valve controller through wires, the valve controller receives signals through the antenna and is connected to the control valve through the signal line.

[0008] The control valve of the above-mentioned high-efficiency drip irrigation pipe network system for field automation is an electric valve or a solenoid valve.

[0009] The above-mentioned efficient drip irrigation pipe network system for field automation, wherein the ground pile includes an additional interface and an underground pipe, wherein the additional interface is arranged on the branch pipe, one end of the underground pipe is connected to the additional interface, and the other end is connected to the vertical port of the ground tee.

[0010] In the above-mentioned efficient drip irrigation pipe network system for field automation, the main pipe and branch pipes are made of hard PVC pipes or hot-melt PE pipes.

[0011] In the above-mentioned efficient drip irrigation pipe network system for field automation, the long branch pipes and the short branch pipes are made of hot-melt PE pipes or PE hoses.

[0012] In the above-mentioned high-efficiency drip irrigation pipe network system for field automation, the branch pipe control valve is a turbine gate valve or a butterfly valve.

[0013] In the above-mentioned efficient drip irrigation pipe network system for field automation, the branch pipe drainage valve is a PE hot-melt ball valve, a PVC adhesive ball valve or a male thread with a PVC female thread ball valve. Beneficial Effects

[0014] Compared with the prior art, the present invention can realize real-time and accurate supply of water and fertilizer through comprehensive optimization of the pipe network and automatic control of valves, meet the needs of field crops for water and nutrients, and at the same time significantly improve the control area of ​​a single valve, reduce the number of control valves, and greatly reduce the investment cost and construction cost of the field irrigation pipe network system, providing technical support for the large-scale and industrialized application of field drip irrigation automation technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the general arrangement diagram of the system; Figure 2 A schematic diagram of the decomposition structure.

[0016] In the figure: 1, water source; 2, water pump unit; 3, filter and fertilizer system device; 4, main pipe; 5, main pipe connector; 6, branch pipe control valve; 7, branch pipe; 8, branch pipe drainage valve; 9, additional interface; 10, ground pipe; 11, ground tee; 12, connector; 13, control valve; 14, branch pipe tee; 15, external thread; 16. Male thread socket straight-through; 17. Short branch pipe; 18. Long branch pipe; 19. Drip irrigation tape tee; 20. Low-pressure and low-flow drip irrigation tape; 21. Plug; 22. Antenna; 23. Solar photovoltaic panel; 24. Valve controller; 25. Battery; 26 Signal line. Implementation

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention. Example

[0018] See also Figure 1 and Figure 2The embodiment of the present invention includes a water source 1 of a field pipe network system, a water pump unit 2, a filter and a fertilization system device 3, a main pipe 4, a main pipe connector 5, a branch pipe control valve 6, a branch pipe 7, a branch pipe drainage valve 8, an increase interface 9, an underground pipe 10, a ground tee 11, a connector 12, a control valve 13, a branch pipe tee 14, an external thread 15, a male thread socket straight-through 16, a short branch pipe 17, a long branch pipe 18, a drip irrigation belt tee 19, a low-pressure and small-flow drip irrigation belt 20, a plug 21, an antenna 22, a solar photovoltaic panel 23, a valve controller 24, a battery 25, and a signal line 26.

[0019] One end of the water pump unit 2 takes water from the water source 1 for pressurization, and the other end is connected to the filter and the fertilization system device 3 through the main pipe 4. The filtered water enters the main pipe 4 for transportation, and is connected to the branch pipe 7 through the main pipe connector 5 and the branch pipe control valve 6. The branch pipe 7 is provided with an additional interface 9, and the end of the branch pipe is provided with a branch pipe drainage valve 8; the additional interface 9 is connected to the ground pipe 10, and the ground pipe 10 is connected to the vertical port of the ground tee 11. The two sides of the horizontal axis of the ground tee 11 are connected to the control valve 13, the connector 12 and the vertical port of the branch pipe tee 14 in turn, and the two sides of the horizontal axis port of the branch pipe tee 14 are connected to the external thread 15 and the male thread socket straight through 1 in turn. 6. A short branch pipe 17 and a plug 21. The short branch pipe 17 is connected to a low-pressure and low-flow drip irrigation belt 20 through a drip irrigation belt tee 19. The connection method of the long branch pipe 18 is the same as that of the short branch pipe 17 and is symmetrically arranged. Unlike the short branch pipe 17, the long branch pipe 18 is twice as long as the short branch pipe, and is 1 / 2 the length away from one end of the control valve 13 without a low-pressure and low-flow drip irrigation belt 20, and only serves to pass water. The control valve 13 is controlled by a valve control device, which includes an antenna 22, a solar photovoltaic panel 23, a valve controller 24, a battery 25 and a signal line 26. The valve control device controls the control valve 13 through the signal line 26 to realize the layout of the irrigation area. Compared with the prior art, the present invention not only realizes the real-time and precise supply of water and fertilizer to meet the needs of field crops for water and nutrients, but also improves the current situation of small control area of ​​single valve, large number of branch pipes and complicated personnel management in the existing field system, effectively increases the control area of ​​single valve, reduces the number of control valves and branch pipes, reduces personnel management work, greatly reduces the investment cost and construction cost of field irrigation pipe network system, and effectively reduces management labor costs.

[0020] In this embodiment, the system pipe network material should be consistent, the main pipe and branch pipe are made of hot-melt PE pipe material; the long branch pipe and short branch pipe are also made of hot-melt PE pipe material.

[0021] In this embodiment, a low-pressure, low-flow drip tape is used, and the dripper flow rate is within 1.2L / h. Its laying length is more than 1 times that of a 1.6L / h flow drip tape, which can achieve the effect of reducing the use of field control valves and branch pipes by half and doubling the irrigation area of ​​the control valve.

[0022] In this embodiment, the control valve can adopt an electric valve and use photovoltaic control, which can effectively reduce the labor costs of laying signal lines, maintenance costs, etc.

[0023] In this embodiment, the branch main control valve can be controlled by a worm gear butterfly valve. Example

[0024] Differences from Example 1: In this embodiment, the system pipe network material should be consistent, the main pipe and branch pipe can be made of hard PVC pipe material; the long branch pipe and short branch pipe can be made of soft PE pipe material.

[0025] In this embodiment, the branch main control valve is controlled by a butterfly valve.

[0026] The specific operation method of the present invention is as follows: when using the present invention, first close the drain valve at the end of the branch pipe, and use signal transmission to enable the valve controller on the valve control device to open the control valve in the rotation irrigation scheme, then open the branch pipe control valve, start the water pump, and ensure that the flow and pressure of each rotation irrigation area are consistent and uniform; when it is necessary to stop the system, first turn off the water pump, then close the branch pipe control valve, and finally close the valve controller to stop the irrigation area control valve from working; open the drain valve at the end of the branch pipe before freezing in winter to discharge the residual water in the pipeline to prevent the pipe network system from being damaged by freezing.

[0027] Compared with the prior art, the present invention significantly increases the control area of ​​a single valve, reduces the number of control valves, and reduces the investment cost of the field irrigation pipe network system, thereby realizing the technical improvement plan for irrigation plots and cost savings on the original basis, and achieving the purpose of establishing the standardized, large-scale, and industrialized application of field drip irrigation automation technology.

[0028] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any effective structural or effective process changes made using the contents of the present invention's 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 efficient drip irrigation pipe network system for field automation, comprising a drip irrigation pipe network consisting of a water source, a water pump unit, a filtering and fertilizing device, a main pipe, a branch pipe, a ground pile, a branch pipe, a drip irrigation belt and a pipe connector, wherein the main pipe is connected to each branch pipe through a main pipe connector and a branch pipe control valve, and a branch pipe drainage valve is connected to each branch pipe at the end, characterized in that: Each of the above-ground piles is equipped with a valve control device, and each of the above-ground piles is connected to two control valves through a ground tee; the two control valves are connected to the valve control device through signal lines, respectively; one end of one of the control valves is connected to the ground tee through a connector, and the other end is connected to the vertical port of the branch tee through a connector, and both ends of the horizontal end of the branch tee are connected to external threads, male socket straight-through and short branch pipes in sequence, and a low-pressure and low-flow drip irrigation tape is laid on the short branch pipe according to the crop planting spacing; one end of the other control valve is connected to the ground tee through a connector, and the other end is connected to the vertical port of the branch tee through a connector, and both ends of the horizontal end of the branch tee are connected to external threads, male socket straight-through and long branch pipes in sequence, and a low-pressure and low-flow drip irrigation tape is laid on the long branch pipe according to the crop planting spacing; the long branch pipe and the short branch pipe are symmetrically arranged in an I-shape.

2. The high-efficiency drip irrigation pipe network system for field automation according to claim 1 is characterized in that: The length of the long branch pipe is twice the length of the short branch pipe.

3. The high-efficiency drip irrigation pipe network system for field automation according to claim 1 is characterized in that: The short branch pipe drives the capillary pipes laid inside the irrigation area; the long branch pipe drives the capillary pipes laid outside the pipe network system.

4. The high-efficiency drip irrigation pipe network system for field automation according to claim 1, characterized in that: The valve control device includes: a valve controller, an antenna, a battery and a solar photovoltaic panel for charging the battery; the solar photovoltaic panel is connected to the battery through wires, the battery is connected to the valve controller through wires, the valve controller receives signals through the antenna and is connected to the control valve through the signal line.

5. The high-efficiency drip irrigation pipe network system for field automation according to claim 4 is characterized in that: The control valve is an electric valve or a solenoid valve.

6. The high-efficiency drip irrigation pipe network system for field automation according to claim 1, characterized in that: The ground pile comprises an additional interface and an underground pipe. The additional interface is arranged on the branch trunk. One end of the underground pipe is connected to the additional interface, and the other end is connected to the vertical port of the ground tee.

7. The high-efficiency drip irrigation pipe network system for field automation according to claim 1, characterized in that: The main pipe and branch pipe are made of hard PVC pipe or hot-melt PE pipe.

8. The high-efficiency drip irrigation pipe network system for field automation according to claim 1, characterized in that: The long branch pipe and the short branch pipe are made of hot-melt PE pipe or PE hose.

9. The high-efficiency drip irrigation pipe network system for field automation according to claim 1, characterized in that: The branch pipe control valve is a turbine gate valve or a butterfly valve.

10. The high-efficiency drip irrigation pipe network system for field automation according to claim 1, characterized in that: The branch pipe drainage valve adopts a PE hot-melt ball valve, a PVC adhesive ball valve or a ball valve with external thread and PVC internal thread.

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