Modular Explosion Pressure Relief Device Framework
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Solution Overview
Problem
Existing explosion pressure relief devices are often clogged by escaping combustion and expansion gases, leading to costly replacement and reduced safety, as they cannot be reused after a pressure relief event.
Innovation Solution
A modular explosion pressure relief device with a framework composed of a base element, lid element, and struts, featuring grooves and insertion openings for easy replacement and a plug-in construction, allowing for the use of simple profiled elements and additional safety features like screw connections and temperature-stable adhesives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the wall is firmly accommodated in a welded framework, then the structural strength and rigidity are improved, but the device cannot be reused after clogging and replacement costs are high
Solution Approach 1:
The framework is divided into separate modular components (base element, lid element, struts) that can be independently assembled and disassembled. The wall is held by a frame made of profiled parts that are not welded but rather assembled through insertion openings, allowing the wall to be removed and replaced without replacing the entire framework structure.
Solution Approach 2:
The framework transitions from a static welded structure to a dynamic assembly-disassembly system. The struts can be inserted and removed from insertion openings, and the wall can be easily taken out and replaced, enabling the device to adapt to different operational states (clean vs. clogged) and extend its service life.
2Reliability
If the entire device is replaced after an explosion, then safety is ensured, but costs increase significantly
Solution Approach 1:
The wall, which is the component subject to clogging and damage, is extracted as a separate replaceable element. After an explosion or clogging event, only the wall needs to be removed through the modular framework and replaced, while the framework structure (base element, lid element, struts) can be retained and reused, significantly reducing replacement costs while maintaining safety.
Solution Approach 2:
The design allows selective discarding of only the damaged wall component while recovering and reusing the framework structure. The modular construction enables the framework to be disassembled, the wall replaced, and the framework reassembled with a new wall, extending the overall device life and reducing material waste.
3Ease of manufacture
If simple profiled elements are used in the framework, then manufacturing cost decreases, but structural rigidity may be compromised
Solution Approach 1:
The framework achieves enhanced rigidity by merging multiple simple profiled elements (struts, base element, lid element) into a coordinated modular structure. The combination of these elements, connected through insertion openings and positioning grooves, creates a stable framework that provides sufficient structural support while using cost-effective simple profiled components rather than complex welded structures.
Data Source
AI summary
This invention relates to an explosion pressure relief device with a wall and a framework fixing the wall. In the case of an explosion in a container to which an explosion pressure relief device is attached, such explosion pressure relief device serves to allow the pressure wave to escape at best greatly weakened.