Rotatable Pipe Adapter for Seismic Flexibility
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Solution Overview
Problem
Current piping systems lack flexibility during installation and are prone to failure in seismic zones due to their rigidity, making it difficult to adjust layouts and maintain reliability in changing environments.
Innovation Solution
The development of a pipe adapter with a tubular design featuring a radially-extending shoulder and annular sealing and securing members, allowing for axial sealing and rotational movement between connected pipes, enabling flexible installation and improved seismic resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If rigid pipe connections are used to ensure structural stability, then connection strength is improved, but installation flexibility and adaptability deteriorate
Solution Approach 1:
The connection system transitions from a static rigid connection to a dynamic system that allows controlled rotation. The pipe adapter incorporates a rotatable component that enables the connected pipes to rotate relative to each other, providing adaptability during installation while maintaining connection strength. This dynamic capability allows the system to accommodate misalignments and layout changes without compromising the structural integrity of the connection.
2Reliability
If rigid pipe connections are used to maintain structural integrity, then connection reliability is improved, but seismic resistance deteriorates
Solution Approach 1:
The rotatable connection mechanism provides dynamic movement capability that allows the piping system to absorb and dissipate seismic energy through controlled rotation. During earthquake events, the connected pipes can rotate relative to each other, reducing stress concentrations and preventing connection failure. This dynamic response maintains connection reliability under seismic loading conditions while rigid connections would be prone to brittle failure.
3Reliability
If permanent epoxy connections are used to ensure connection strength, then connection reliability is improved, but installation time and complexity increase
Solution Approach 1:
The connection system is segmented into modular components including a pipe adapter, rotatable mechanism, and connecting elements. This segmentation eliminates the need for permanent epoxy bonding by providing a mechanical connection system that achieves reliable attachment through assembled parts. The modular design allows for quicker assembly and disassembly compared to epoxy connections, reducing installation time while maintaining connection reliability through precise mechanical engagement.
4Manufacturing precision
If precise layout planning is required to ensure proper pipe alignment, then connection precision is improved, but installation complexity and time increase
Solution Approach 1:
The rotatable connection mechanism changes the alignment parameter from fixed angular positioning to variable rotational positioning. Instead of requiring precise pre-planned angular relationships between pipe segments, the system allows pipes to be connected at various angles and then rotated into the correct alignment. This parameter change from static to dynamic angular adjustment simplifies the installation process and reduces the need for complex layout planning while maintaining precise final alignment.
Data Source
AI summary
A pipe adapter includes a first tubular element, a second tubular element, and an annular securing member disposed around and fixed to a second portion of the first tubular element. The annular securing member has a flange portion that contacts and secures the second tubular element axially relative to the first tubular element while also allowing the second tubular element to rotate relative to the first tubular element and the annular securing member. An annular sealing member is located around the first portion of the second tubular element to provide an axial seal along the adapter.