Helical Multilayer Duct with Perpendicular Tile Separation Lines
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Solution Overview
Problem
Existing multilayer pipes used for transporting abrasive materials suffer rapid wear and are difficult to cut straight, as they require cutting ceramic abrasion-resistant layers, which complicates fabrication and maintenance.
Innovation Solution
A multilayer pipe design featuring a strip wound helically with protective tiles arranged in rows having parallel rectilinear edges and lines of separation perpendicular to the pipe axis, allowing for straightforward cutting and maintaining flexibility, with the strip's edges forming non-zero angles and chamfered ends for easier fabrication and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ceramic protective tiles are used to resist abrasion, then abrasion resistance is improved, but the pipe becomes difficult to cut straight
Solution Approach 1:
The pipe structure is segmented into modular components: the ceramic protective layer is divided into discrete tiles arranged in rows with separation lines, and the pipe itself is divided into sections that can be cut at these separation lines. This segmentation allows the pipe to be cut straight through the ceramic layer by aligning cuts with the pre-defined separation lines between tile rows, resolving the contradiction between maintaining ceramic protection and enabling easy cutting.
2Ease of operation
If the pipe is made flexible for easy handling, then ease of operation is improved, but the pipe may deform during transport
Solution Approach 1:
The pipe incorporates a dynamic structure where the support layer and protective tile layer can flex relative to each other during bending operations, while maintaining structural integrity. The helical winding pattern and separation lines allow controlled deformation during flexing, enabling the pipe to return to its original shape after bending, thus resolving the contradiction between flexibility and shape stability.
Data Source
AI summary
A multilayer pipe (1) having at least one layer (2) comprising a strip (3) wound helically in the form of touching turns, said strip (3) comprising a longitudinal support (4) and protective tiles (5) fastened to said support (4), said protective tiles (5) being organized on said support (4) in parallel rows (6), each row (6) of tiles being separated from an adjacent row (6) of tiles by an empty space forming a line (7) of separation, the lines (7) of separation being parallel to one another. Each of the lines (7) of separation between rows (6) of tiles (5) extends in a plane perpendicular to the longitudinal axis of the pipe (1).