Flow Control Elements for Pressurized Vessel Discharge Stability
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Solution Overview
Problem
The flow rate of substances discharged from a pressurized vessel is unstable due to substances near the walls stagnating, forming dead regions, which affects the injection into downstream apparatuses like burners.
Innovation Solution
Incorporating flow control elements with upwardly-converging walls and forming downwardly-converging channels within the pressurized vessel to enhance flow stability and equalize the discharge rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If substances are discharged from a pressurized vessel without flow control elements, then the discharge process is simple, but the flow rate becomes unstable due to dead regions forming near the walls
Solution Approach 1:
The vessel interior is segmented into multiple flow channels by inserting flow control elements (such as cones or cylinders) that divide the single discharge path into several parallel channels. This segmentation prevents dead regions from forming and ensures uniform flow distribution across all channels, thereby stabilizing the overall flow rate while maintaining a relatively simple vessel structure.
Solution Approach 2:
Flow control elements are strategically positioned at specific locations within the vessel (such as near the discharge opening or at intervals along the walls) to create localized flow control zones. These elements modify the flow characteristics in their immediate vicinity by preventing stagnation and promoting uniform flow, while the rest of the vessel maintains its simple cylindrical structure.
2Reliability
If flow control elements are added to equalize flow rate, then flow stability improves, but the device complexity increases
Solution Approach 1:
Instead of modifying the entire vessel structure or adding complex internal mechanisms, the invention extracts the flow control function into separate, simple elements (cones, cylinders, or rings) that can be independently positioned within the vessel. These extracted elements perform the flow equalization function without requiring changes to the vessel itself, thereby minimizing overall device complexity.
Solution Approach 2:
Rather than trying to eliminate dead regions directly or add complex active control systems, the invention uses passive geometric shapes (inverted cones or cylinders) that naturally guide flow away from the walls and toward the center discharge path. This inverted approach uses the geometry of the control elements to passively achieve flow equalization without requiring complex mechanisms.
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 improves the flowability and stability of substance discharge by creating local mass flow, ensuring consistent and uniform flow rates into downstream devices.
Implementation Method 1
One or more downwardly-converging channels are formed between the downwardly-converging wall and the upwardly-converging wall
Data Source
AI summary
A vessel apparatus includes a pressurized vessel and at least one flow control element. The at least one flow control element is located within the pressurized vessel and has an upwardly-converging wall.