Tantalum Loose Lining Structure for Chemical Equipment
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Solution Overview
Problem
The existing tantalum and steel plate tight lining structure is prone to damage, leading to leakage and increased costs due to unstable expansion joints and high external pressures on the tantalum lining, which compromises the reliability and safety of chemical equipment.
Innovation Solution
A loose lining structure featuring a tantalum plate and steel clad plate with a cladding layer made of titanium, copper, or zirconium, where the tantalum plate is fixed through welding, and reinforcement fastenings like tantalum plugs are used to enhance rigidity and prevent damage, along with a manufacturing method that includes processing specific installation holes and components for secure assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a tight lining structure is used to reduce cost, then manufacturing cost is reduced, but the structure becomes prone to damage and leakage due to unstable expansion joints and high external pressures
Solution Approach 1:
The patent divides the lining structure into modular segments with standardized expansion joints, allowing the lining to be divided into manageable sections that can expand and contract independently, reducing stress concentration and improving overall structural stability while maintaining cost-effectiveness
Solution Approach 2:
The patent incorporates pre-designed expansion joints and reinforcement structures before the lining is installed, providing cushioning and stress relief mechanisms in advance to prevent damage from external pressures and thermal expansion, thereby improving reliability without significantly increasing manufacturing cost
2Ease of manufacture
If the tantalum plate thickness is reduced to lower cost, then material cost is reduced, but the lining becomes more susceptible to deformation and failure under external pressure
Solution Approach 1:
The patent uses composite construction by cladding thin tantalum plates onto steel plates, combining the corrosion resistance of tantalum with the mechanical strength of steel, achieving both cost reduction through thinner tantalum and improved pressure resistance through the steel substrate
Solution Approach 2:
The patent applies local reinforcement at critical areas such as around through-holes and at the edges of the tantalum plate, where stress concentration is highest, allowing the use of thinner tantalum in non-critical areas while maintaining overall structural integrity and pressure resistance
3Adaptability or versatility
If expansion joints are used to accommodate thermal expansion, then adaptability is improved, but the expansion quality becomes unstable leading to liner deformation and failure
Solution Approach 1:
The patent divides the lining into segmented sections with standardized expansion joints that allow controlled thermal expansion, with each segment able to expand independently, improving adaptability to temperature changes while maintaining stable connection points
Solution Approach 2:
The patent designs expansion joints with specific geometric parameters and material properties that accommodate thermal expansion within defined ranges, using precise dimensional control and material selection to ensure stable expansion behavior under varying temperature conditions
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 provides a stable, reliable, and cost-effective structure that reduces the risk of leakage and enhances the high-pressure resistance of the tantalum lining, improving the overall reliability and safety of chemical equipment while simplifying the manufacturing process.
Implementation Method 1
the cladding layer is made of titanium, copper, nickel or zirconium
Implementation Method 2
a periphery of the tantalum plate is fixed with the cladding layer through welding
Implementation Method 3
the reinforcement fastening is a tantalum plug
Data Source
AI summary
A loose lining structure based on a tantalum plate and a steel clad plate is disclosed, which includes a plate cladding base formed by the steel clad plate and the tantalum plate covered on the steel clad plate. The steel clad plate is formed by a steel layer and a cladding layer laid on the steel layer, a periphery of the tantalum plate is fixed with the cladding layer through welding, a medium circulation pipe and/or a reinforcement fastening are/is set on the plate cladding base, the medium circulation pipe includes a tantalum liner tube, the reinforcement fastening is a tantalum plug. Also, a manufacturing method of the loose lining structure based on the tantalum plate and the steel clad plate is disclosed, which includes steps of (S1) fixing through welding; (S2) processing installing holes; and (S3) installing components.