PVDF Distributor Arrangement with Threaded Branch Connections
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Solution Overview
Problem
Existing distributor arrangements for liquids and gases face challenges in manufacturing simplicity, assembly reliability, and flexible connection options, as they often require specific components and suffer from corrosion issues with metal connections.
Innovation Solution
The use of polyvinylidene fluoride (P.V.D.F) for the main distribution line with internally and externally threaded connections, allowing for easy assembly and connection of multiple branch lines without special insulation, and incorporating trapezoidal threads with end stops for enhanced safety and versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal branch line connections are injection molded onto a plastic main distribution line, then assembly reliability is improved, but corrosion occurs at contact points with metallic pipes requiring special insulation
Solution Approach 1:
The patent applies homogeneity by making the entire distributor arrangement (main distribution line and branch line connections) from the same plastic material P.V.D.F, eliminating material interfaces between dissimilar materials. This prevents galvanic corrosion that would occur between metal and plastic components, while maintaining assembly reliability through uniform material properties and integrated molding.
2Ease of manufacture
If all connecting devices have the same thread type, then manufacturing is simplified, but assembly flexibility and adaptability are reduced
Solution Approach 1:
The patent applies asymmetry by providing connecting devices with different thread types (internal and external threads) at different locations on the main distribution line. This asymmetric design allows the distributor arrangement to connect to various pipe configurations and orientations, enabling flexible adaptation to different installation scenarios while maintaining standardized manufacturing processes for each connecting device type.
3Area of stationary object
If multiple distributor arrangements are connected in series, then coverage area is expanded, but assembly complexity increases
Solution Approach 1:
The patent applies segmentation by designing the distributor arrangement as a modular system where multiple identical or similar units can be connected in series through standardized connecting devices. Each module can be independently manufactured and assembled, then combined to cover larger areas. The use of standardized threads and interchangeable connecting devices maintains assembly simplicity even as the system scales to cover extensive areas through series connection of multiple modules.
Data Source
Figure 1~2b
Figure 3~5
Figure 6~10
AI summary
The distributor arrangement comprises a main distribution line (1a) and a branch line connection (2a). The main distribution line and the branch line connection are together manufactured from a plastic material. The plastic material is polyvinylidene fluoride. Both the branch line connections are formed on the main distribution lines.