Fire Sprinkler Leak Monitoring Using Automated Pressure Isolation
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Solution Overview
Problem
Existing fire sprinkler systems face challenges with manual and disruptive leak testing methods, leading to undetected leaks that can cause increased maintenance costs, wear on systems, and potential false activations, while current automated systems are not efficient in monitoring leak rates continuously.
Innovation Solution
An automated system that includes a computer controller, sensors, and valves to isolate the sprinkler system from its gas supply, monitoring internal pressure, and calculating leak rates by sensing pressure changes, allowing for continuous or scheduled testing without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual leak testing is performed according to NFPA standards, then regulatory compliance is achieved, but system operation is disrupted and testing frequency is limited
Solution Approach 1:
The patent replaces manual mechanical testing procedures with an automated electronic monitoring system that uses sensors, processors, and communication devices to continuously monitor pressure and detect leaks automatically, eliminating the need for disruptive manual testing while maintaining regulatory compliance
Solution Approach 2:
The system enables continuous monitoring of sprinkler system pressure through automated sensors and processors, allowing leak detection to occur constantly rather than through periodic manual testing, thus achieving both high testing frequency and regulatory compliance without operational disruption
2Measurement precision
If automated monitoring is implemented, then continuous leak detection is achieved, but system complexity increases
Solution Approach 1:
The system uses multi-functional components where the processor performs multiple tasks including pressure data analysis, leak detection, threshold comparison, and communication operations, while the sensor serves both monitoring and diagnostic functions, thereby reducing overall system complexity despite continuous monitoring capabilities
Solution Approach 2:
The system automatically monitors pressure, detects leaks, compares readings against thresholds, and communicates results without requiring manual intervention or complex external control systems, achieving accurate leak detection through self-service operation that minimizes system complexity
3Reliability
If frequent testing is performed, then leak detection capability is improved, but maintenance costs and system wear increase
Solution Approach 1:
The patent replaces disruptive manual testing that causes mechanical stress and requires system drainage with a non-intrusive automated electronic monitoring system that continuously detects leaks through pressure sensing, improving leak detection capability while eliminating maintenance costs associated with frequent manual testing
Solution Approach 2:
The system provides continuous leak detection through automated monitoring, eliminating the need for frequent disruptive manual tests that incur maintenance costs and cause system wear, thereby improving reliability without increasing loss of substance
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 efficient, continuous monitoring and testing of fire sprinkler systems, reducing maintenance costs and preventing false activations by detecting leaks promptly and accurately, adhering to regulatory standards.
Implementation Method 1
a sensor on the fire sprinkler system for reporting the system pressure to the computer controller
Data Source
AI summary
A monitoring and testing system which is designed to automatically seal off the system from its gas supply and monitor internal pressure during that time to perform regulatory testing. The scheduling can be automated and can be done without maintenance personnel having to monitor the time passage and pressure manually. The system may also be designed to monitor operation of the air compressor, or related gas supply device, and evaluate if the operation of the gas supply is operating in a fashion indicative of a larger than desired leak. This effectively allows the system to monitor pressure changes during regular operation and on a somewhat continuous basis.