Axially Moving Service Valve for Sprinkler Maintenance Isolation
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Solution Overview
Problem
Existing irrigation systems require shutting down or digging up sprinklers for repairs, leading to increased costs and inefficiencies in maintaining turf and landscaping due to insufficient or irregular rainfall in many areas.
Innovation Solution
A sprinkler system incorporating a service valve that allows manual control to turn the sprinkler on or off independently of the irrigation controller, enabling maintenance without disconnecting it from the water source, along with a flow control system including a solenoid module, filter, and pressure regulator for efficient fluid management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If traditional irrigation systems are used without a service valve, then the system structure is simpler, but repair and maintenance require shutting down the entire system or digging up sprinklers, increasing repair costs and time
Solution Approach 1:
The inlet valve is segmented into two independent control mechanisms: an electric solenoid pilot valve for automated control and a manual service valve for field maintenance. This segmentation allows the service valve to be operated independently to shut off water flow to the turbine without affecting other sprinklers, enabling repairs without system shutdown while maintaining overall system integrity.
Solution Approach 2:
The manual service valve acts as an intermediary control device between the water source and the turbine. It provides a local control point that mediates water flow independently of the main system controller, allowing field personnel to isolate and service individual sprinkler components without disrupting the entire irrigation system.
2Productivity
If the entire irrigation system is shut off to repair a single sprinkler, then component replacement can be performed, but productivity and operational efficiency decrease due to system-wide downtime
Solution Approach 1:
The service valve enables segmentation of control authority, allowing individual sprinkler isolation while maintaining flow to other zones. This segmentation of control allows continuous operation of the irrigation system during localized repairs, maintaining productivity while facilitating ease of repair.
Solution Approach 2:
The service valve is pre-positioned at the sprinkler location with direct access to the water supply line. This preliminary placement allows immediate isolation of the problematic sprinkler without requiring system-wide shutdown or excavation, enabling quick repairs and minimizing downtime for maintaining productivity.
3Loss of time
If sprinklers must be dug up from the ground for component replacement, then internal components can be accessed, but time and labor costs increase significantly
Solution Approach 1:
The service valve serves as an intermediary access point located at the sprinkler head level, eliminating the need for excavation to reach internal components. Water flow can be stopped at this intermediate point, allowing safe access to turbine and gear drive components without digging, significantly reducing time loss and improving ease of operation.
Solution Approach 2:
The service valve is preliminarily installed as part of the sprinkler assembly with external accessibility. This preliminary configuration ensures that the valve is already in position and accessible before any repair is needed, eliminating the time-consuming steps of excavation and component access preparation.
4Ease of operation
If a service valve is added to allow independent control, then maintenance can be performed without system shutdown, but the device complexity increases
Solution Approach 1:
The manual service valve is merged with the existing inlet valve assembly and integrated into the sprinkler head structure. This merging combines multiple functions (automated solenoid control, manual service control, and water flow regulation) into a single integrated unit, minimizing additional complexity while maximizing ease of operation for maintenance activities.
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
Enables convenient and cost-effective maintenance of irrigation systems by allowing users to service components without depressurizing the system, reducing repair costs and improving operational efficiency.
Implementation Method 1
The service valve may allow a user to manually turn the sprinkler on to allow the user to adjust the arc or range of the sprinkler
Implementation Method 2
The gear drive can rotatably couple the turbine and the nozzle
Data Source
AI summary
A flow control system for an irrigation sprinkler can include a service valve having an inlet, a first fluid port, a second fluid port, a third fluid port, and/or a valve piston having a valve piston inlet and a valve piston outlet. The system can include a pilot valve and a vent line. The system can include a filter in fluid communication with the inlet of the service valve. The valve piston can be configured to move vertically with respect to the first, second, and third fluid ports between first, second, and third valve positions.