Piston-Based Fire Detection Line Tension Indicator for Sensor Reliability
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Solution Overview
Problem
Existing fire suppression systems lack a reliable means to monitor and maintain the correct tension in tensioned lines of mechanical fire detection systems, which is crucial for proper sensor operation and effective fire response.
Innovation Solution
A tension indicating device for mechanical fire detection lines, featuring a piston with a movable indicator and a reference indicator, which aligns to visually indicate correct tension levels, ensuring the lines are properly tensioned for optimal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tensioned lines are used to couple sensors in mechanical fire detection systems, then sensor operation and fire response effectiveness are improved, but the ability to monitor and maintain correct tension is lost
Solution Approach 1:
The patent introduces a tension indicating device as an intermediary component between the tensioned line and the monitoring system. This device includes a piston that moves in response to tension changes, a movable indicator that visually displays tension status, and a reference indicator that provides the correct tension reference. The intermediary device transforms the abstract tension parameter into a visible visual indicator, solving the information loss problem while maintaining sensor operation reliability.
2Loss of information
If visual indicators are added to show tension status, then monitoring capability is improved, but device complexity increases
Solution Approach 1:
The tension indicating device is designed to be self-regulating through the piston mechanism that automatically moves to indicate correct tension when the tensioned line is properly tensioned. The device requires no external power source, control system, or complex electronics - it uses pure mechanical principles where the piston position itself serves as the indicator. This self-service approach provides visual monitoring capability while minimizing added 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 device accurately indicates whether the tension in the fire detection lines is within the correct range, enabling the system to function effectively by preventing sensor breakage and ensuring timely activation of fire suppression measures.
Implementation Method 1
the tensioned line being provided with tension, the piston moves towards the at least one of the first and second ends of the body
Implementation Method 2
a compressible element configured to be disposed between the piston head and the first end of the body. Responsive to the tensioned line being provided with tension, the piston moves towards the second end of the body, thereby causing the compressible element to compress
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
A tension indicating device (200) for a fire suppression system device includes a body (202) including a first end (204) and a second end (206). At least one of the first and second ends is configured to be operatively coupled to a tensioned line (208, 210) of a mechanical fire detection line of a fire suppression system. The tension indicating device further includes a piston (220) configured to be slidably disposed along a length of the body, the piston configured to be operatively coupled to the tensioned line of the mechanical fire detection line. The piston is provided with a movable indicator (230). Responsive to the tensioned line being provided with tension, the piston moves towards the end of the body, thereby causing the movable indicator to correspondingly move to indicate a tension in the tensioned line of the fire suppression system.