Half-Shell Pipe Fitting With Concentric Weldable Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current double pipe systems face challenges in connecting prefabricated fittings due to varying diameters and types, requiring high stock levels and complex adhesive connections, which are difficult to inspect and repair, especially when attempting simultaneous inner and outer connections.
Innovation Solution
A fitting with distance elements on the inner circumference of plastic half-shells for concentric arrangement around a primary pipeline, featuring integrated heating wires with meandering windings and snap connections, allowing for pre-checking of welds and facilitating easy assembly and inspection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If adhesive connections are used for connecting pipes and fittings, then the connections can be made, but the connections become difficult to inspect and repair
Solution Approach 1:
The patent replaces adhesive (chemical) connections with mechanical snap connections. The connecting elements feature a snap-fit mechanism with a connection body and a clip that engages with a fixing piece, allowing for mechanical assembly without adhesives. This substitution enables visual inspection and easy disassembly/repair while maintaining connection integrity.
2Productivity
If simultaneous inner and outer connections are made, then assembly is completed in one step, but the complexity of the connection process increases
Solution Approach 1:
The patent divides the connection process into separate stages: first the outer connection between the protective pipe and fitting is made using snap connections, then the inner connection between the fluid-conducting pipe and fitting is made. This segmentation allows each connection type to be optimized independently and inspected separately, reducing overall complexity while maintaining productivity.
3Adaptability or versatility
If prefabricated fittings with various diameters and types are used, then different pipe configurations can be achieved, but high stock levels are required
Solution Approach 1:
The patent designs the fitting with universal connection elements that can accommodate different pipe diameters and types. The connecting elements feature adjustable and adaptable components that work with various pipe configurations, allowing a single fitting design to serve multiple functions and reduce the need for specialized fittings for each pipe size.
4Shape
If the secondary pipeline is installed around the primary pipeline, then the double pipe system structure is achieved, but the welds cannot be inspected during assembly
Solution Approach 1:
The patent enables preliminary inspection of the primary pipeline and its connections before the secondary pipeline is installed around it. The fitting design allows for inspection of the outer connection and subsequently the inner connection in a sequential manner, ensuring weld quality and connection integrity are verified before final assembly is completed.
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
Enables simple, cost-effective production and inspection of connections during assembly, reducing the complexity of installation and enhancing the ability to locate and repair leaks in double pipe systems.
Implementation Method 1
the heating wire has, in the region of the connecting pieces, several meandering windings
Data Source
AI summary
A fitting for connecting a secondary plastic pipeline of a double pipe system containing two half-shells composed of plastic, wherein in each case each of the half-shells has an integrated heating wire, wherein the heating wire is arranged in each case in the regions of the connecting pieces and the heating wire has several meandering windings, wherein the heating wire is arranged in each case in a groove provided for this in the half-shell and the connecting elements which connect the two half-shells, characterized in that the fitting has distance elements arranged on the inner circumference of the half-shells for concentric arrangement of the fitting with respect to a primary pipeline.