Thermal Expansion Assembly for Fire Suppression Pressure Control
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Solution Overview
Problem
Conventional fire suppression systems face inefficiencies and damage due to thermal expansion of fluids in extreme temperatures, leading to potential system failure and the need for manual pressure checks, which are time-consuming and inefficient.
Innovation Solution
A fire suppression system incorporating a thermal expansion assembly with a pressure relief valve and bleed valve that automatically releases extinguishing medium when standby pressure exceeds a threshold, maintaining pressure within safe limits and eliminating the need for manual checks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fire suppression fluid is pressurized in the system, then the system is ready for immediate fire suppression action, but leaks may occur at sprinklers or system joints while inactive
Solution Approach 1:
The patent extracts the harmful pressurized fluid from the system by providing a drainage mechanism that allows excess fluid to be removed from the supply lines when the system is inactive, eliminating the source of potential leaks while maintaining system readiness
2Reliability
If manual pressure checks are performed periodically, then excess fluid can be released to prevent damage, but the process is inefficient and time consuming
Solution Approach 1:
The patent implements a self-service mechanism where the thermal expansion assembly automatically monitors and releases excess fluid from the system based on temperature-induced pressure changes, eliminating the need for manual intervention and making the system self-regulating
Solution Approach 2:
The patent incorporates feedback through temperature sensors and pressure switches that continuously monitor system conditions and automatically trigger fluid release when thresholds are exceeded, creating a closed-loop control system that responds to actual system state
3Adaptability or versatility
If the fluid is allowed to expand thermally in extreme temperatures, then the system can handle temperature fluctuations, but the pipes and components may be damaged due to thermal expansion
Solution Approach 1:
The patent removes the harmful thermal expansion effects by providing a controlled release mechanism that extracts excess expanded fluid from the system, preventing the buildup of damaging pressures while allowing the system to accommodate temperature changes
Solution Approach 2:
The patent introduces a thermal expansion assembly as an intermediary component between the fluid and the pipes, which absorbs and manages the thermal expansion forces through controlled fluid release, protecting the pipes and components from direct stress
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 automatically regulates pressure, reducing the risk of system failure, minimizing false alarms and leaks, and maintaining system integrity by releasing excess pressure due to thermal expansion, thus enhancing accuracy and lifespan.
Implementation Method 1
The pressure relief valve is configured to open, when the standby pressure in the thermal expansion assembly exceeds the first threshold
Implementation Method 2
environments that cause the fluid to boil or climates susceptible to extreme temperature fluctuations may adversely affect the pipes and other components of the fire suppression system due to thermal expansion of the fluid
Data Source
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AI summary
An apparatus and method are provided for maintaining a standby pressure in a fire suppression system. The fire suppression system includes at least on spray head and a drive source coupled to the at least one spray head by a supply line. The supply lines delivers extinguishing medium to the spray head. The drive source maintains a standby pressure of the extinguishing medium in the supply line when the system is inactive. A release line is coupled at a first end to the supply line. The release line includes a thermal expansion assembly. When the system is inactive and the standby pressure exceeds a first threshold, the thermal expansion assembly releases extinguishing medium from the system to reduce the standby pressure. When the system is active and the standby pressure exceeds the first threshold, the thermal expansion assembly does not release extinguishing medium from the system.