Split Ring Nozzle Attachment Resists Axial and Rotational Loads
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Solution Overview
Problem
Existing methods for attaching nozzles to heat exchanger slabs, such as welding, are costly and inefficient in resisting axial movement, rotational movement, and moments parallel to the slab surface.
Innovation Solution
A split ring apparatus with aligned fastener holes and a protrusion is used to secure the nozzle, allowing for resistance to axial and rotational movements while avoiding the drawbacks of welding, by utilizing a fastener that extends through the split ring to tighten over the nozzle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding is used to attach nozzles to slabs, then axial movement and rotational movement are resisted, but cost increases and other drawbacks occur
Solution Approach 1:
The attachment system is segmented into multiple functional components: a collar that fits over the nozzle, multiple fasteners distributed around the collar, and a protrusion for moment resistance. This segmentation allows each component to address specific movement resistances independently, achieving comprehensive restraint without the high cost and complexity of welding.
2Strength
If welding is used to attach nozzles to slabs, then moments parallel to the slab surface are resisted, but the process becomes expensive and time-consuming
Solution Approach 1:
The collar is designed with a protrusion that extends beyond the collar body, positioned to engage with the slab surface before final fastening. This preliminary geometric feature automatically provides moment resistance as the collar is positioned, eliminating the need for additional welding operations to resist moments and significantly speeding up the attachment process.
3Stability of the object's composition
If multiple fasteners are used to secure the nozzle, then axial and rotational movements are restrained, but device complexity increases
Solution Approach 1:
The collar serves multiple functions simultaneously: it provides a mounting structure for fasteners, acts as a restraint against axial movement through its fit over the nozzle, provides moment resistance through the protrusion, and distributes mechanical loads. This multi-functionality reduces the need for separate components, thereby reducing overall device complexity despite using multiple fasteners.
Data Source
AI summary
A split ring includes a split ring body, the body having a first end and a second end; a first fastener hole defined by the first end of the split ring; a second fastener hole defined by the second end of the split ring; a gap defined by the first and second ends approaching each other wherein the first fastener hole and the second fastener hole are aligned to permit a fastener to extend through the first fastener hole, across the gap and through the second fastener hole; and a protrusion extending beyond the body of the split ring, the protrusion being located on the body opposite the gap. A method of forming a split ring includes: forming a split ring body; fixing onto the body a projection that projects above the body; and installing a closing mechanism into the split ring in order to allow the split ring to tighten over an object.