Quench Ring Tangential Inlets for Uniform Syngas Cooling
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Solution Overview
Problem
Existing syngas coolers face challenges in providing a uniform and constant water flow to quench rings, leading to non-uniform cooling of metal surfaces and limitations due to water availability and space constraints, which can result in slag and particulate deposition.
Innovation Solution
A quench ring design featuring an annular manifold with tangentially aligned inlets and a channel configuration that directs cooling fluid circumferentially about the annular cooling chamber, ensuring a uniform flow and preventing recirculation zones, while also incorporating spacers to maintain flow pattern and a bottom drain for regulating water and solids discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If significant amounts of water are provided to the quench ring channels to ensure continuous filling, then the ring provides substantially constant flow to metal surfaces, but the device complexity and space requirements increase
Solution Approach 1:
The quench ring is divided into multiple independent water channels (first channel, second channel, third channel) with separate inlets and outlets. This segmentation allows each channel to be optimized independently for water flow distribution, ensuring uniform cooling across different metal surfaces while reducing the overall complexity compared to a single large channel system.
Solution Approach 2:
The patent introduces a vertical dimension by positioning outlets at different heights (first outlet above second outlet, second outlet above third outlet). This vertical arrangement creates a stepped water flow pattern that improves water distribution uniformity across the metal surfaces while maintaining a compact horizontal footprint, effectively resolving the space complexity issue.
2Manufacturing precision
If water channels are configured to provide uniform flow to metal surfaces, then cooling uniformity improves, but the device complexity increases
Solution Approach 1:
Each water channel is designed with specific local characteristics tailored to the cooling requirements of adjacent metal surfaces. The first channel serves a first metal surface, the second channel a second metal surface, and the third channel a third metal surface, with each channel's geometry and flow rate optimized for its specific location and cooling needs, achieving uniform cooling without requiring a uniformly complex design throughout.
Solution Approach 2:
The water flow system is designed to be dynamic rather than static, with water entering through inlets and exiting through outlets positioned at different heights and locations. This creates a natural flow pattern that adapts to the cooling requirements of different metal surfaces, achieving uniform cooling through controlled water movement rather than complex static channel geometry.
3Productivity
If the quench ring is positioned to cool metal surfaces effectively, then cooling efficiency improves, but space availability and positioning flexibility are reduced
Solution Approach 1:
By segmenting the quench ring into multiple channels with separate inlets and outlets, the design achieves effective cooling of multiple metal surfaces simultaneously. This segmented approach allows the quench ring to be positioned optimally relative to the metal surfaces it needs to cool, improving cooling efficiency while maintaining positioning flexibility through the modular channel structure.
Solution Approach 2:
The vertical arrangement of outlets at different heights allows the quench ring to effectively cool metal surfaces at various elevations. This multi-level configuration enables the quench ring to be positioned at optimal locations while maintaining effective cooling coverage, thereby improving cooling efficiency without sacrificing positioning flexibility in the horizontal plane.
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 consistent and uniform cooling effect, preventing slag deposition on hot metal components, enhancing syngas cleaning efficiency, reducing fabrication time and space requirements, and maintaining quench ring functionality by avoiding clogging and undesirable flow patterns.
Implementation Method 1
cooling fluid is channeled substantially circumferentially about the annular cooling chamber... the cooling fluid contacts a surface of the cooling chamber
Implementation Method 2
cool syngas, fly ash particulates, and slag within the gasifier system... as the syngas is cooled by radiative and convective heat transfer
Data Source
AI summary
A quench ring for use with a gasifier system. The quench ring including an annular manifold having a radius, an annular channel coupled in flow communication with said manifold, and at least one inlet coupled in flow communication with said manifold, said at least one inlet having a center line aligned substantially tangentially to said annular manifold.