Aseptic Pressure Relief Chamber With Elastic Through-Wall
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Solution Overview
Problem
In container treatment machines, especially in media lines, pressure relief during emergency stops or maintenance is challenging due to the risk of contamination and injury from residual media pressure, as existing solutions either expose the media line to the environment or have complex structures that are not aseptic and adjustable.
Innovation Solution
A pressure relief device with an elastically deformable through-wall in a housing, allowing internal pressure adjustment within the pressure chamber, which expands to create an aseptic expansion volume without connecting to the outside, thereby relieving media pressure safely and preventing contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If pressure relief opening is opened to the free environment or free volume, then media pressure is reduced to minimum pressure, but contaminants and germs from surrounding area can enter the media lines causing contamination
Solution Approach 1:
A compressible body (elastic element) is introduced as an intermediary between the media line and the pressure relief opening. This elastic element deforms under pressure to relieve media pressure while maintaining a sealed barrier that prevents contaminant entry. The compressible body acts as a mediator that allows pressure equalization without direct environmental contact.
Solution Approach 2:
The patent utilizes a compressible body with elastic properties (such as an elastic membrane or flexible element) that can deform to accommodate pressure changes. This flexible element serves as both the pressure relief mechanism and the contamination barrier, allowing the system to reduce media pressure while maintaining aseptic conditions through its sealing capability.
2Stress or pressure
If traditional pressure relief devices are used, then pressure relief is achieved, but the device structure becomes complex and non-aseptic
Solution Approach 1:
The invention extracts the essential pressure relief function from complex traditional pressure relief devices and implements it through a single compressible body element integrated directly into the media line. By removing unnecessary components and simplifying the structure to just the elastic element, the device achieves pressure relief while maintaining aseptic conditions and reducing complexity.
Solution Approach 2:
The compressible body automatically responds to pressure changes in the media line without requiring external control systems or complex mechanisms. When media pressure increases, the elastic element naturally deforms to relieve pressure, and when pressure normalizes, it returns to its original state. This self-regulating mechanism eliminates the need for complex control systems.
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 solution provides effective, aseptic pressure relief in container treatment machines, ensuring safety during maintenance and operation without compromising hygiene or adding unnecessary volumes, allowing for adjustable pressure control to manage media pressure safely and efficiently.
Implementation Method 1
the through-wall of the through-pipe is formed at least partially from an elastically deformable material, at least in a section extending through the pressure chamber
Data Source
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AI summary
The invention relates to a pressure relief device (1) for media lines (11). The pressure relief device comprises at least one housing (4) with a housing wall (7), wherein a pressure chamber (6) defined by the housing wall (7) is formed inside the housing (4). A through-line (5) for medium, which is connectable to a media line (11) and surrounded by a through-wall (8), is provided, the through-line (5) extending at least in part through the pressure chamber (6) inside the housing (4). At least one feed line connection (2) and one discharge line connection (3) for connection to the media line (11) are also included. The through-wall (8) of the through-line (5) is formed at least in part from a resiliently deformable material, at least in the portion extending through the pressure chamber (6). The pressure relief device (1) is also formed in such a way that at least one predefined pressure chamber inner pressure (P1, P2) is adjustable in the pressure chamber (6).