Irrigation Flow Regulator With Self-Cleaning Piston Notch
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Solution Overview
Problem
Flow regulators in irrigation systems, especially those handling dirty water, often clog due to small passageways, leading to inefficiencies and operational failures.
Innovation Solution
A flow regulator design featuring a movable piston member with a gradually decreasing helical notch and a large peripheral shroud, allowing for direct flow regulation and self-cleaning capabilities, ensuring high reliability and responsiveness to pressure changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If small passageways are used in flow regulators, then flow regulation precision is improved, but clogging frequency increases
Solution Approach 1:
The flow regulator is divided into multiple passages with different functions: a first passage for flow regulation and a second passage for debris removal. This segmentation allows the regulation passage to maintain small dimensions for precision while the debris removal passage handles larger particles, preventing clogging of the regulation passage.
Solution Approach 2:
The piston member acts as an intermediary element that can be selectively positioned to either regulate flow through the first passage or remove debris through the second passage. By introducing this intermediate component, the system can switch between regulation mode and cleaning mode, preventing clogging while maintaining regulation precision.
2Reliability
If large passageways are used in flow regulators, then clogging frequency is reduced, but flow regulation precision deteriorates
Solution Approach 1:
The flow regulator is divided into multiple passages with different functions: a first passage for flow regulation and a second passage for debris removal. This segmentation allows the regulation passage to maintain small dimensions for precision while the debris removal passage handles larger particles, preventing clogging of the regulation passage.
Solution Approach 2:
The system performs self-cleaning by using the second passage to actively remove debris that accumulates in the first passage. The piston member can be positioned to flush debris through the larger second passage, maintaining the cleanliness and precision of the regulation passage without external intervention.
3Device complexity
If simple orifice design is used, then device complexity is reduced, but response speed to pressure changes deteriorates
Solution Approach 1:
The flow regulator uses a dynamic piston member that can move in response to pressure changes to actively regulate flow. This dynamic element allows the system to respond quickly to pressure variations while maintaining a relatively simple overall structure, improving response speed without significantly increasing complexity.
Solution Approach 2:
The system uses hydraulic pressure differentials to drive the piston member and control flow regulation. By leveraging hydraulic principles, the regulator achieves rapid response to pressure changes through fluid-driven motion of the piston, enhancing response speed while keeping the mechanical structure simple.
4Speed
If complex hydraulic networks are used, then response speed to pressure changes is improved, but device complexity increases
Solution Approach 1:
The flow regulator uses a dynamic piston member that can move in response to pressure changes to actively regulate flow. This dynamic element allows the system to respond quickly to pressure variations while maintaining a relatively simple overall structure, improving response speed without significantly increasing complexity.
Solution Approach 2:
The patent extracts the essential flow regulation function into a simple piston-orifice mechanism, removing unnecessary complexity from more elaborate hydraulic networks. By isolating the core regulation element, the system achieves fast response through minimal structural complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design provides high reliability and rapid response to pressure changes, reducing the likelihood of clogging and maintaining consistent flow rates, even with dirty water, by allowing debris to be released and preventing media particle loss during flushing cycles.
Implementation Method 1
movement of the piston member towards and away from the base member is affected by water pressure existing upstream and downstream to an entry into the piston member
Data Source
AI summary
A flow regulator for regulating a flow rate of water within at least a section of a water system, such as an irrigation system, includes a base member and piston member. The piston member is movable relative to the base member and includes at least one notch through which water can flow when passing through the flow regulator. Movement of the piston member towards and away from the base member, respectively, decreases and increases an area of the notch through which water can flow. An orifice member detachably coupled to the piston member and having an orifice member aperture through which all water flowing through the flow regulator must pass limits the cross-sectional area of an interior water passage within the piston member.