Burst Disk Protected Valve for Carbonation Safety
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Solution Overview
Problem
Existing home carbonation machines face issues with pressure buildup and potential explosions when carbonating non-water beverages, as safety pressure release valves can be impaired by sticky residues from sugary beverages, leading to restricted gas flow and uncontrolled pressure release.
Innovation Solution
A safety unit with a burst disk mechanism that includes a valve carrier, spring nut, and backup element housing, where a burst disk made of materials like nickel, stainless steel, or plastic ruptures at a higher pressure to ensure safe gas release, providing a secondary backup system to prevent explosions by creating a new path for gas venting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a safety pressure release valve is used in home carbonation machines, then pressure can be released when excess pressure builds up, but the valve can be impaired by sticky residues from sugary beverages leading to restricted gas flow
Solution Approach 1:
The safety pressure release system is divided into two independent components: a primary safety valve and a secondary burst disk. This segmentation ensures that if the primary valve becomes blocked by sticky residues, the secondary burst disk remains available as an independent backup mechanism to release pressure, thereby maintaining system reliability.
Solution Approach 2:
The burst disk acts as an intermediary backup element positioned in parallel with the safety valve. When the safety valve is impaired by sticky residues, the burst disk serves as a mediator to provide an alternative pressure release path, preventing complete system failure.
2Reliability
If a burst disk is added as a backup element, then pressure release reliability is improved when the valve malfunctions, but device complexity increases
Solution Approach 1:
The burst disk is integrated into the existing safety valve housing structure, merging two pressure release functions into a single compact assembly. This combining approach provides backup reliability without proportionally increasing device complexity, as both elements share common structural support and mounting features.
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 burst disk mechanism effectively prevents uncontrolled explosions by releasing excess pressure and self-purging the valve system, ensuring safe operation even when regular safety valves are blocked or malfunctioning due to sticky residues from non-water beverages.
Implementation Method 1
the downward force of the housing against the spring nut may in turn cause the spring to compress thus lowering the housing and opening a sealing area
Implementation Method 2
a backup element set to rupture at a second higher pressure when said valve malfunctions; wherein said backup element is a burst disk
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A safety unit for a home carbonation machine that includes a valve to release gas from a sealed state at a first pressure and a backup element set to rupture at a second higher pressure when the valve malfunctions. The valve also includes a backup element housing which moves to vent the gas via an outlet during carbonation and which has a conduit to direct the gas to the backup element.