CN-116753463-B - Irrigation branch water pressure adjusting method and system

CN116753463BCN 116753463 BCN116753463 BCN 116753463BCN-116753463-B

Abstract

The application provides an irrigation branch water pressure regulating method and system, wherein the method comprises the steps of collecting end water pressure data of branch pipelines when the branch pipelines are communicated with a main pipeline through a bypass where a control main valve is located, determining that the end water pressure data is not in a branch pipeline corresponding to a preset water pressure range, judging whether the end water pressure data of the branch pipelines are all in the preset water pressure range through regulating the control valve, regulating the control valve of the branch pipelines according to a preset flow pressure drop curve if the end water pressure data is in the preset water pressure range, otherwise, switching the branch pipelines to be communicated with the main pipeline through the bypass where a pressurizing system is located, and pressurizing the branch pipelines through the pressurizing system. The device is used for executing the method. The automatic regulation of the water pressure of each branch pipeline is realized, and when the water source pressure is too small, the pressure can be increased by switching to the bypass of the pressurizing system, so that the reasonable distribution of the irrigation water network pressure and the stable operation of each branch pipeline are ensured.

Inventors

YAO LIPING
WANG XUN

Assignees

北京领蔚科技有限公司

Dates

Publication Date: 20260512
Application Date: 20230511

Claims (16)

1. A method for regulating the water pressure of an irrigation branch, comprising: When each branch pipeline is communicated with the main pipeline through a bypass where the control main valve is located, collecting the tail end water pressure data of each branch pipeline, and determining the branch pipeline of which the tail end water pressure data is not in a corresponding preset water pressure range; judging whether the terminal water pressure data of each branch pipeline can be within a preset water pressure range by adjusting the control valve of the determined branch pipeline; if yes, adjusting the control valve of each branch pipeline according to a preset flow pressure drop curve; otherwise, switching each branch pipeline to be communicated with the main pipeline through a bypass where a pressurizing system is located, and pressurizing the branch pipeline by using the pressurizing system; The control valve of each branch pipeline is regulated according to a preset flow pressure drop curve, and comprises the steps of collecting water pressure data of the inlet side of the main pipeline, a flow permission range of the main pipeline and a flow permission range of each branch pipeline, acquiring all feasible flow regulation schemes according to the water pressure data of the inlet side of the main pipeline, the flow permission range and the flow pressure drop curve of each branch pipeline, selecting a flow regulation scheme, and regulating the control valve of each branch pipeline according to target regulation flow of each branch pipeline in the selected flow regulation scheme; The method comprises the steps of obtaining all feasible flow regulation schemes according to inlet side water pressure data of a main pipeline, flow allowable ranges and flow pressure drop curves of the main pipeline, flow allowable ranges and flow pressure drop curves of branch pipelines, and obtaining a plurality of feasible solutions by carrying out simultaneous solution on the flow pressure drop curves and the flow allowable ranges of the main pipeline and preset water pressure ranges of the branch pipelines, wherein one feasible solution is a flow regulation scheme, and each feasible solution comprises target regulation flow of the main pipeline and target regulation flow of the branch pipelines.
2. The irrigation branch water pressure regulating method according to claim 1, wherein the determining whether the end water pressure data of each branch pipe is within a preset water pressure range by regulating the control valve of the determined branch pipe comprises: Collecting a flow allowable range of the branch pipeline, and calculating a pressure drop adjusting range of the branch pipeline according to the flow allowable range and a flow pressure drop curve; and collecting the water pressure data of the outlet side of the main pipeline, and judging whether the tail end water pressure data is in a preset water pressure range or not by adjusting the control valve of the branch pipeline according to the water pressure data of the outlet side of the main pipeline and the pressure drop adjusting range of the branch pipeline.
3. The irrigation branch water pressure regulating method as claimed in claim 2, wherein pressurizing the branch pipe with the pressurizing system comprises: acquiring the inflow water pressure range of the corresponding branch pipeline according to the pressure drop adjusting range and the preset water pressure range of each branch pipeline; And taking the maximum value of the minimum value of the inflow water pressure range of each branch pipeline as a pressurizing target value, switching each branch pipeline to be communicated with the main pipeline through a bypass where the pressurizing system is positioned, and starting the pressurizing system to pressurize until the water pressure data of the inlet side of each branch pipeline reaches the pressurizing target value.
4. The irrigation branch water pressure regulating method as recited in claim 1, further comprising, after pressurizing the branch pipe with the pressurizing system: and after the water pressure data at the outlet side of the main pipeline reaches the supercharging target value, switching each branch pipeline to be communicated with the main pipeline through a bypass of the control main valve, and adjusting the control valve of each branch pipeline according to a preset flow pressure drop curve.
5. The irrigation branch water pressure regulating method as recited in claim 1, further comprising: acquiring pipe diameters, material data, historical flow data and unit-length pressure drops corresponding to the historical flow data of each branch pipeline; Fitting the mapping relation between the historical flow data and the pressure drop of unit length under the data of different pipe diameters and materials to obtain flow pressure drop curves corresponding to the pipelines.
6. The irrigation branch water pressure regulating system is characterized by comprising a main pipeline, a first bypass, a second bypass, at least one branch pipeline and a server; a control main valve is arranged on the first bypass; the main pipeline is communicated with the branch pipeline through the first bypass or the second bypass; the branch pipeline is provided with: The control valve is used for adjusting the flow of the branch pipeline by adjusting the opening; the pressure sensor is arranged at the tail end of the branch pipeline and used for uploading the collected tail end water pressure data to the server; The server is used for adjusting the valve position of the control valve or switching the first bypass and the second bypass according to the received terminal water pressure data, the preset water pressure range of each branch pipeline and the preset flow pressure drop curve; The server includes: The hydraulic pressure judging unit is used for collecting the end hydraulic pressure data of each branch pipeline and determining the branch pipelines of which the end hydraulic pressure data is not in the corresponding preset hydraulic pressure range; the adjusting judging unit is used for judging whether the end water pressure data of each branch pipeline can be within a preset water pressure range by adjusting the control valve of the determined branch pipeline; the valve position adjusting unit is used for adjusting the control valve of each branch pipeline according to a preset flow pressure drop curve; The supercharging control unit is used for switching each branch pipeline to be communicated with the main pipeline through a bypass where the supercharging system is located, and supercharging is carried out on the branch pipeline by using the supercharging system; The valve position adjusting unit includes: the permission range acquisition module is used for acquiring the water pressure data at the inlet side of the main pipeline, the flow permission range of the main pipeline and the flow permission range of each branch pipeline; the adjusting scheme acquisition module is used for acquiring all feasible flow adjusting schemes according to the water pressure data of the inlet side of the main pipeline, the flow allowable range and the flow pressure drop curve of the main pipeline, and the flow allowable range and the flow pressure drop curve of each branch pipeline; The valve position adjusting module is used for selecting a flow adjusting scheme and adjusting the control valve of each branch pipeline according to the target adjusting flow of each branch pipeline in the selected flow adjusting scheme; The adjusting scheme obtaining module is further used for carrying out simultaneous solving on a flow pressure drop curve, a flow permission range and a preset water pressure range of each branch pipeline of the main pipeline and each branch pipeline to obtain a plurality of feasible solutions, wherein one feasible solution is a flow adjusting scheme, and each feasible solution comprises a target adjusting flow of the main pipeline and a target adjusting flow of each branch pipeline.
7. The irrigation branch water pressure regulating system according to claim 6, wherein the regulation judging unit includes: the pressure drop adjusting range calculating module is used for collecting the flow allowable range of the branch pipeline and calculating the pressure drop adjusting range of the branch pipeline according to the flow allowable range and the flow pressure drop curve; And the regulation judging module is used for acquiring the water pressure data of the outlet side of the main pipeline, and judging whether the tail end water pressure data is in a preset water pressure range or not by regulating the control valve of the branch pipeline according to the water pressure data of the outlet side of the main pipeline and the pressure drop regulating range of the branch pipeline.
8. The irrigation branch water pressure regulating system as recited in claim 7, wherein the boost control unit comprises: the inflow water pressure range acquisition module is used for acquiring the inflow water pressure range of the corresponding branch pipeline according to the pressure drop adjusting range of each branch pipeline and the preset water pressure range; And the pressurizing control module is used for taking the maximum value of the minimum value of the inflow water pressure range of each branch pipeline as a pressurizing target value, switching each branch pipeline to be communicated with the main pipeline through a bypass where the pressurizing system is positioned, and starting the pressurizing system to pressurize until the water pressure data of the inlet side of each branch pipeline reaches the pressurizing target value.
9. The irrigation branch water pressure regulation system of claim 6 wherein the server further comprises: And the bypass switching unit is used for switching each branch pipeline to be communicated with the main pipeline through a bypass where the control main valve is positioned, and adjusting the control valve of each branch pipeline according to a preset flow pressure drop curve.
10. The irrigation branch water pressure regulation system of claim 6 wherein the server further comprises: The data acquisition unit is used for acquiring the pipe diameter, the material data, the historical flow data and the pressure drop of unit length corresponding to the historical flow data of each branch pipeline; and the curve fitting unit is used for fitting the mapping relation between the historical flow data and the pressure drop of the unit length under the data of different pipe diameters and materials to obtain flow pressure drop curves corresponding to the pipelines.
11. The irrigation branch water pressure regulating system as recited in claim 6 wherein the main conduit further comprises a main control valve.
12. The irrigation branch water pressure regulating system as recited in claim 6 further comprising a grid power system for powering the booster system.
13. The irrigation branch water pressure regulating system as recited in claim 6 further comprising a solar power system for powering the control master valve, the control valves for each branch line, and the pressure sensor.
14. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 1 to 5 when executing the computer program.
15. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when executed by a processor, implements the method of any one of claims 1 to 5.
16. A computer program product, characterized in that the computer program product comprises a computer program which, when executed by a processor, implements the method of any one of claims 1 to 5.

Description

Irrigation branch water pressure adjusting method and system Technical Field The application relates to the field of garden irrigation, in particular to a method and a system for adjusting water pressure of an irrigation branch. Background Irrigation in gardens generally uses a mobile sprinkler or a fixed nozzle to irrigate the landscape plants. The sprinkling irrigation equipment can receive topography in the use, the restriction of factors such as distance, in order to furthest cover landscape plant, often can set up the branch line that many length are unequal, can match different watering forms and different watering radial shower nozzle on the different branch line, and because landscape plant's kind is different for the watering time of each shower nozzle is mutually different. The pressure of the whole water supply network is always in a fluctuation state, and meanwhile, the water source pressure is also in a fluctuation phenomenon under most conditions, so that certain spray heads cannot work normally due to the fact that the pressure is lower than a limiting value. In the prior art, normal work of each irrigation branch is mainly ensured through manual adjustment, but the normal work of each irrigation branch is always required by a worker, and the worker is required to have abundant experience, so that reasonable adjustment of valves of each branch pipeline is ensured, and meanwhile, when the water source pressure is low, the situation that all branch pipelines can not work normally is caused by adjustment anyway exists. Disclosure of Invention Aiming at the problems in the prior art, the embodiment of the invention provides a method and a system for regulating the water pressure of an irrigation branch, which can at least partially solve the problems in the prior art. In a first aspect, the present application provides a method for regulating the water pressure of an irrigation branch, comprising: When each branch pipeline is communicated with the main pipeline through a bypass where the control main valve is located, collecting the tail end water pressure data of each branch pipeline, and determining the branch pipeline of which the tail end water pressure data is not in a corresponding preset water pressure range; judging whether the terminal water pressure data of each branch pipeline can be within a preset water pressure range by adjusting the control valve of the determined branch pipeline; if yes, adjusting the control valve of each branch pipeline according to a preset flow pressure drop curve; otherwise, the branch pipelines are switched to be communicated with the main pipeline through a bypass where the pressurizing system is located, and the pressurizing system is utilized to pressurize the branch pipelines. The judging whether the terminal water pressure data of each branch pipeline can be within a preset water pressure range by adjusting the determined control valve of the branch pipeline comprises the following steps: Collecting a flow allowable range of the branch pipeline, and calculating a pressure drop adjusting range of the branch pipeline according to the flow allowable range and a flow pressure drop curve; and collecting the water pressure data of the outlet side of the main pipeline, and judging whether the tail end water pressure data is in a preset water pressure range or not by adjusting the control valve of the branch pipeline according to the water pressure data of the outlet side of the main pipeline and the pressure drop adjusting range of the branch pipeline. Wherein, the control valve of each branch pipeline is adjusted according to a preset flow pressure drop curve, which comprises: Collecting water pressure data at the inlet side of a main pipeline, a flow allowable range of the main pipeline and a flow allowable range of each branch pipeline; acquiring all feasible flow regulation schemes according to the water pressure data of the inlet side of the main pipeline, the flow allowable range and the flow pressure drop curve of the main pipeline, and the flow allowable range and the flow pressure drop curve of each branch pipeline; and selecting a flow regulating scheme, and regulating the control valve of each branch pipeline according to the target regulating flow of each branch pipeline in the selected flow regulating scheme. Wherein, utilize the pressurization system to carry out the pressure boost to the branch pipeline, include: acquiring the inflow water pressure range of the corresponding branch pipeline according to the pressure drop adjusting range and the preset water pressure range of each branch pipeline; And taking the maximum value of the minimum value of the inflow water pressure range of each branch pipeline as a supercharging target value, switching each branch pipeline to be communicated with the main pipeline through a bypass where the supercharging system is positioned, and starting the supercharging system to carry out supercharging until the wa