Large Container Foil Lining and Panel Assembly
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Solution Overview
Problem
Large containers face challenges in assembly complexity, weather-dependent installation, mechanical sensitivity, and high costs due to enamelled steel or concrete construction, which complicates their use in various applications, especially across long distances and in biogas production.
Innovation Solution
A large container design featuring a thermally insulating intermediate layer between the foil and the base and panels, with the inner foil lining fixed at multiple points, using screws and retaining plates to secure the foil strips, allowing for quick assembly and operation regardless of weather, and providing enhanced chemical and mechanical protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If enamelled steel plates are used for container walls, then chemical resistance is improved, but assembly complexity increases and the protective coating is sensitive to mechanical stress
Solution Approach 1:
The container wall is divided into multiple prefabricated panels that are assembled together. Each panel is pre-coated with enamel at the factory under controlled conditions, separating the coating process from the assembly process and reducing on-site complexity while maintaining chemical resistance.
Solution Approach 2:
The enamel coating is applied to steel plates in advance at the factory before the panels are transported and assembled on-site. This preliminary action allows the coating to cure properly and reduces the complexity of on-site assembly, as the panels arrive ready-to-install with their protective coating already in place.
2Reliability
If sealing material is used between steel plates, then sealing is achieved, but assembly becomes weather-dependent
Solution Approach 1:
Sealing elements are pre-installed on the panels at the factory during panel fabrication. This preliminary action allows sealing to be performed under controlled factory conditions rather than on-site in varying weather, ensuring reliable sealing while making assembly independent of weather conditions.
3Reliability
If stainless steel plates are used instead of enamelled steel, then chemical resistance is maintained without mechanical sensitivity, but material costs increase
Solution Approach 1:
The solution uses a composite structure combining ordinary steel plates with an enamel coating. This composite material provides the chemical resistance of stainless steel at lower cost, as the thin enamel layer protects the cheaper carbon steel substrate from chemical attack, achieving the desired reliability without the high material costs of full stainless steel construction.
4Manufacturing precision
If concrete panels are used for container walls, then uniform quality is ensured, but transport costs increase significantly
Solution Approach 1:
The wall material is changed from heavy concrete panels to lighter steel panels with enamel coating. This parameter change in material density and strength-to-weight ratio maintains uniform quality through controlled factory fabrication while dramatically reducing weight and associated transport costs, making the solution economically viable for long-distance shipping.
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
This design enables rapid and weather-independent assembly, maintains optimal temperature for biogas production, prevents foil displacement or tearing, ensures gas-tightness, and reduces material costs by using metal panels with a durable, chemically resistant foil lining, making the container suitable for diverse applications.
Implementation Method 1
a thermally insulating intermediate layer both between the film and the base and between the film and the panels of the container wall
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a large container (1), comprising a bottom and a closed peripheral wall (3), wherein the wall (3) has a plurality of individual plates (6) connected to each other. According to the invention the plates (6) each have a film (7) on the inner face of the plates directed toward the container interior, wherein the adjacent films (7) adjoining each other are connected to each other in a fluid-tight manner by means of sealing seams.