Separator Retention Nut Sealing and Retrieval in Pressure Vessels
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Solution Overview
Problem
There is a need for a secure and retrievable retention system for cartridge separators in the gas and liquid processing industry that can be installed without breaking the plane of entry into pressure vessels, ensuring safe operation and maintenance without requiring confined space entry permits.
Innovation Solution
A retention nut system with a threaded boss and cap, featuring a groove for an elastomeric seal and a retention nut tool that uses mechanical or magnetic forces to securely attach and detach the nut from the separator element, allowing for torque transmission and safe retrieval from pressure vessels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a retention system is installed behind the plane of entry in pressure vessels, then operational safety and compliance with confined space entry regulations are improved, but the complexity of the installation and retrieval operations increases
Solution Approach 1:
The retention system is divided into separate components: a retention nut that threads onto the separator element, a retention tool for installation, and a retrieval tool for removal. This segmentation allows the system to be installed and maintained without breaking the plane of entry, improving safety while managing complexity through modular design
Solution Approach 2:
The retention nut acts as an intermediary component between the separator element and the pressure vessel environment. It provides a secure attachment point that can be manipulated by external tools, enabling safe installation and retrieval operations without requiring entry into the confined space
2Reliability
If the retention nut includes a groove for an elastomeric seal, then sealing performance and prevention of fluid bypass are improved, but the manufacturing complexity and material requirements increase
Solution Approach 1:
The groove for the elastomeric seal is created only in the specific location where sealing is required on the retention nut. This localized feature provides the necessary sealing performance while minimizing the overall manufacturing complexity and material requirements compared to making the entire component more complex
3Ease of operation
If the cap is manufactured from a magnetic material, then retrieval capability from pressure vessels is improved, but the material selection and manufacturing options are reduced
Solution Approach 1:
The magnetic material in the cap replaces or supplements mechanical retrieval features. A magnetic retrieval tool can attract and remove the retention nut from the pressure vessel without requiring complex mechanical interfaces, improving ease of operation while the material substitution manages manufacturing constraints
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 retention nut system effectively secures separator elements, prevents fluid bypass, and enables safe retrieval from pressure vessels, ensuring operational safety and compliance with confined space entry regulations.
Implementation Method 1
The boss includes a groove capable of seating an elastomeric sealing element that provides a positive seal between the retention nut and the separator element
Implementation Method 2
The cap is manufactured from a magnetic material
Data Source
AI summary
A retention nut for securing a separator element is described herein. The retention nut includes a first portion of the retention nut that includes a threaded cavity to enable coupling of the retention nut to a structural member attached to the separator element, wherein the first portion of the retention nut comprises a means for providing a positive seal between the retention nut and the separator element, and a second portion of the retention nut that includes a feature that is couplable to a retention nut tool using a mechanical force such that a torque applied to the retention nut tool is sufficiently transmitted to the retention nut to one of: tighten the retention nut onto the structural element and loosen the retention nut from the structural element.