Pressure Vessel Interior Cladding Using Pressed Conforming Liners
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for cladding the interiors of pressure vessels are time-consuming, often taking over 1000 hours due to the slow deposition rate of the cladding material during the welding process, which limits the speed at which the interior of a pressure vessel can be clad.
Innovation Solution
A method involving a lining that conforms to the interior geometry of the pressure vessel, pressed past its yield strength using rollers and then fused to the component using techniques like laser welding, arc welding, or electron beam welding, significantly reducing the time required for the cladding process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional welding deposition method is used to clad the pressure vessel interior, then the cladding material is fused to the parent material, but the process takes over 1000 hours due to slow deposition rate
Solution Approach 1:
The lining is pre-formed to conform to the interior geometry of the pressure vessel before installation. This preliminary preparation allows the lining to be quickly positioned and pressed into place, eliminating the need for slow layer-by-layer deposition during the cladding process and reducing total cladding time from over 1000 hours to a much shorter duration.
Solution Approach 2:
The invention replaces the traditional welding deposition mechanism with a mechanical pressing system. Rollers apply compressive force to press the lining into intimate contact with the pressure vessel interior, causing plastic deformation and fusion without requiring slow material deposition. This mechanical substitution dramatically increases cladding speed while maintaining bond strength.
2Strength
If the lining is pressed into the component past yield strength, then strong bonding is achieved, but high compressive force is required
Solution Approach 1:
The pressing process uses dynamic, progressive compression rather than static force application. Multiple rollers move along the lining, applying compressive force sequentially to different sections. This dynamic approach allows the lining to be pressed past yield strength into plastic deformation, creating strong mechanical interlocking and bonding while distributing the force requirements over time and space.
Solution Approach 2:
The invention changes the physical state and mechanical properties of the lining during pressing. By applying sufficient compressive force to press the lining past its yield strength, the material undergoes plastic deformation, increasing its density and creating strong mechanical bonding with the substrate. This parameter change from elastic to plastic deformation is key to achieving strong bonds.
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 method significantly reduces the time needed to clad the interior of a pressure vessel, potentially from thousands of hours to a more manageable timeframe, while ensuring a strong and durable corrosion-resistant cladding.
Implementation Method 1
The lining is pressed into the component past the yield strength of the lining
Implementation Method 2
The lining is then fused to the component. A fusing device may be used to fuse the lining to the interior of the component
Data Source
AI summary
Cladding of the interior of a component part of a pressure vessel is shown. A lining which conforms to at least a portion of the interior geometry of the component is positioned in the interior of the component. The lining is then pressed into the component past its yield strength. The lining is then fused to the component.