Spaced Cable Loop Hose Restraint for Whip Mitigation
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Solution Overview
Problem
High-pressure hoses used in industrial systems pose a risk of injury due to unpredictable whipping motion upon failure, which can cause severe bodily harm and equipment damage, especially when improperly restrained or installed.
Innovation Solution
A hose restraint system with two spaced cable loops and a common anchoring assembly, featuring a protective sleeve and a continuous cable that passively constricts around the hose during pressure failure, distributing tensile energy and reducing whip-induced motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single cable loop restraint is used, then the device complexity is reduced, but the reliability of whip mitigation is insufficient
Solution Approach 1:
The restraint system is divided into multiple cable loops (first cable loop and second cable loop) spaced along the hose, with each loop providing independent restraint at different locations. This segmentation allows the system to maintain higher reliability through distributed restraint points while keeping each individual loop relatively simple in structure.
2Area of stationary object
If the cable loops are spaced far apart, then the coverage area increases, but the effectiveness of constriction during pressure release is reduced
Solution Approach 1:
The cable loops are positioned at specific intervals (spaced apart by a predetermined distance) along the hose, creating localized restraint zones. Each loop provides concentrated constriction force at its specific location, while the spacing ensures adequate coverage of the entire hose length. This local quality approach allows effective restraint without requiring continuous coverage.
3Adaptability or versatility
If the restraint system requires disconnection from fitting, then the ease of installation is reduced, but the adaptability to different hose configurations is improved
Solution Approach 1:
The cable loops are pre-formed and configured to encircle the hose before installation. The restraint system is designed to be installed on the hose while maintaining connection to the fitting, with the cable loops already shaped to provide immediate restraint functionality upon installation without requiring disconnection or complex assembly steps.
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 system effectively mitigates hose whipping by passively constraining the hose without requiring disconnection from its fitting, thereby enhancing safety and reducing the risk of injury and equipment damage in high-pressure environments.
Implementation Method 1
The first and second cable loops are configured to constrict and tighten passively around the hose as the hose contracts under pressure
Implementation Method 2
The common anchoring assembly is configured to transfer tensile energy from the continuous cable to a fixed structural support during a hose failure event
Data Source
AI summary
Disclosed are a method and a hose restraint assembly for a pressurized fluid hose. The assembly includes a first cable loop and a second cable loop formed from a continuous cable and spaced longitudinally apart along the hose. Each cable loop is configured to encircle the hose and terminate at a common anchoring assembly. A protective sleeve is positioned around each of the first and second cable loops and disposed in contact with the hose. The common anchoring assembly is configured to transfer tensile energy from the continuous cable to a fixed structural support during a hose failure event. The first and second cable loops are configured to constrict and tighten passively around the hose as the hose contracts under pressure.