Flanged Metal Insert for High-Velocity Gas Flow in Corrugated Hoses
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Solution Overview
Problem
Metal hoses subjected to high-velocity gases or liquids experience turbulence at the junction of the liner and end fitting, leading to noise, reduced flow, and potential catastrophic failure due to metal fatigue, which existing designs fail to adequately address.
Innovation Solution
A flanged metal insert with a tapered interior wall is introduced to guide gas flow, protecting the metal hose and liner welds, and creating a smooth laminar flow by being machined into the end fitting or installed between the end fitting and liner, using a non-bendable stainless steel insert to prevent abrasion and reduce turbulence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a liner is placed inside the hose to reduce turbulence, then turbulence is reduced, but turbulence remains at the junction of the liner and end fitting
Solution Approach 1:
The invention divides the flow guidance function into two segments: the liner handles turbulence reduction in the hose body, while the insert handles turbulence at the junction area. This segmentation allows each component to optimize its specific function without compromising the other.
Solution Approach 2:
The insert acts as an intermediary component between the liner and the end fitting. It provides a transition surface that mediates the flow between the lined hose section and the unlined junction area, preventing turbulence generation at the interface.
2Ease of operation
If the insert is made bendable to accommodate hose flexibility, then installation flexibility is improved, but structural strength and turbulence reduction effectiveness are compromised
Solution Approach 1:
The hose assembly is segmented into flexible sections (hose with liner) and a rigid section (insert at the junction). This allows the majority of the hose to remain flexible while the critical junction area gains structural strength from the rigid insert.
Solution Approach 2:
The insert introduces localized rigidity only where needed - at the junction of the liner and end fitting where turbulence occurs. The rest of the hose maintains its natural flexibility, achieving local quality optimization.
3Strength
If the junction area is left unlined to maintain structural integrity, then structural integrity is maintained, but turbulence and noise are generated
Solution Approach 1:
The insert serves as an intermediary surface that allows the junction area to remain structurally intact (unlined) while still providing a smooth flow path. It mediates between the need for structural integrity and the need to eliminate turbulence.
Solution Approach 2:
The insert extends the lined flow path into a new dimensional space - the junction area between the liner and end fitting. This creates a continuous smooth surface in three dimensions, eliminating turbulence without requiring the entire junction to be lined.
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 solution effectively reduces turbulence, protects the metal welds, and enhances the performance of corrugated metal hoses in high-velocity applications by ensuring a smooth flow and preventing metal fatigue, thereby improving the reliability and durability of the hose assemblies.
Implementation Method 1
creating a smooth laminar flow by being machined into the end fitting or installed between the end fitting and liner
Data Source
AI summary
An apparatus to enable the flow of high speed gases through the apparatus, the apparatus including modifying a metal hose which can be a metal hose or a corrugated metal hose having an exterior braid and an interior liner. The improvement includes inserting a non-bendable flange insert into a leading edge of the metal pipe and combining that with a pipe having a tapered interior wall which is welded to the metal hose to facilitate the flow of gases to a level of Mach 1 without damaging the interior portions of the interior liner.