Fire Sprinkler Pressure Monitoring for Automated Leak Testing
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Solution Overview
Problem
Fire sprinkler systems experience leaks due to corrosion, which are difficult to detect efficiently and accurately using current manual testing methods, leading to increased maintenance costs, potential false activations, and system inefficiencies.
Innovation Solution
An automated system that monitors and tests fire sprinkler systems by isolating them from the gas supply to measure pressure changes over time, using a computer controller, sensors, and a compressor to calculate leak rates, allowing for continuous or scheduled testing without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual leak testing methods are used, then system simplicity is maintained, but measurement precision and detection accuracy deteriorate
Solution Approach 1:
The system automatically performs leak testing without requiring manual intervention. The controller isolates the sprinkler system from the gas supply, monitors pressure changes, and calculates leak rates autonomously, eliminating the need for manual testing procedures while improving measurement precision
Solution Approach 2:
The patent replaces manual mechanical testing procedures with an automated electronic monitoring system that uses sensors, controllers, and computer processing to detect and measure leak rates, thereby improving detection accuracy without proportionally increasing physical complexity
2Reliability
If continuous monitoring is implemented, then reliability improves, but use of energy and device complexity increase
Solution Approach 1:
The system performs monitoring in periodic cycles rather than continuously. The controller isolates the system from gas supply, monitors pressure changes during designated test periods, then returns to normal operation, achieving reliable leak detection without requiring continuous energy consumption
Solution Approach 2:
The system maintains continuous monitoring capability through automated pressure sensing that operates during normal system operation, allowing leak detection without interrupting sprinkler system functionality or requiring additional energy beyond what is already consumed by normal system operation
3Productivity
If automated leak testing is implemented, then productivity improves, but device complexity increases
Solution Approach 1:
The existing sprinkler system components (compressor, controller, pressure sensors) are made multi-functional by programming them to perform both normal system operation and automated leak testing. This allows productivity improvement without adding separate dedicated testing equipment, thereby limiting the increase in device complexity
Solution Approach 2:
The system uses feedback from pressure sensors to automatically detect leaks and trigger testing cycles. The controller continuously monitors pressure changes, compares them against baseline values, and initiates automated testing when anomalies are detected, improving productivity through intelligent automation rather than complex mechanical systems
4Loss of time
If manual leak testing is performed, then device complexity is minimized, but loss of time increases
Solution Approach 1:
The system performs preliminary isolation of the sprinkler system from the gas supply before beginning leak testing. This pre-prepared state allows for rapid, efficient testing without requiring time-consuming manual setup procedures, reducing overall testing time while using relatively simple automated components
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 system provides accurate and continuous leak rate monitoring, reducing maintenance disruptions and costs, and ensuring the sprinkler system operates efficiently by detecting leaks promptly and automatically adjusting gas supply.
Implementation Method 1
a sensor on the fire sprinkler system for reporting the system pressure to the computer controller
Implementation Method 2
a compressor for supplying gas to the fire sprinkler system to maintain the fire sprinkler at the system pressure
Implementation Method 3
a valve operable by the computer controller for isolating the fire sprinkler system from the compressor
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.