Non-Circular Branch Ports in Flow Dividers
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Solution Overview
Problem
The prior art Coriolis flowmeters suffer from inefficient utilization of the main diversion port cross-sectional area due to circular branch diversion ports, leading to increased pressure loss and reduced flow range.
Innovation Solution
The flow divider employs non-circular branch diversion ports, such as fan, tetragonum, or ellipse shapes, to increase the total cross-sectional area, optimizing the flow rate and reducing pressure loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If circular branch diversion ports are used, then the structure is simple and easy to manufacture, but the total cross-sectional area of branch diversion ports is limited, causing increased pressure loss and reduced flow range
Solution Approach 1:
The patent changes the geometric parameters of the branch diversion ports from circular to non-circular shapes (such as fan-shaped, rectangular, or other polygonal configurations). This parameter change allows the total cross-sectional area of branch diversion ports to exceed that of circular ports with the same outer dimensions, thereby increasing flow capacity and reducing pressure loss while maintaining manufacturing feasibility through standard cutting and forming processes
2Ease of manufacture
If circular branch diversion ports are used, then the manufacturing process is simple, but the ratio of total cross-sectional area of branch diversion ports to main diversion port area is less than 50%, reducing flow divider efficiency
Solution Approach 1:
The patent applies parameter changes by transforming the shape parameter of branch diversion ports from circular to non-circular configurations. This enables the total cross-sectional area ratio between branch and main diversion ports to exceed 50%, significantly improving flow distribution efficiency and productivity while remaining compatible with conventional manufacturing techniques for cutting and forming non-circular openings in the flow divider plate
3Device complexity
If circular branch diversion ports are used, then the design is conventional and simple, but the cross-sectional area of the main diversion port is not effectively utilized, decreasing flow range
Solution Approach 1:
The patent implements parameter changes by modifying the geometric shape parameter of branch diversion ports from circular to non-circular forms. This optimization effectively increases the total cross-sectional area of branch diversion ports, allowing more effective utilization of the main diversion port cross-sectional area and expanding the overall flow range of the flow divider without increasing device complexity
Solution Approach 2:
The patent applies dimensional optimization by changing the two-dimensional shape configuration of branch diversion ports from circular to non-circular patterns that better utilize the available space in the flow divider plate. This dimensional reconfiguration maximizes the total open area within the constraints of the circular flow divider housing, thereby expanding the effective flow cross-section and flow range
Data Source
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AI summary
Disclosed in the present invention are a flow divider and a Coriolis flowmeter, wherein the flow divider is of a cylindrical structure, N branch flow guide ports are formed in the cylinder bottom of the flow divider, and N is a positive integer not less than 2. The branch flow guide ports are non-circular. The total area of the N branch flow guide ports is S1, and the flow divider satisfies the following conditions: if the N non-circular branch flow guide ports are replaced with N circular branch flow guide ports, and the maximum total area of the N circular branch flow guide ports is S2, S1>S2. Compared with the prior art, the present invention can increase the integral cross sectional area of the N branch flow guide ports of the flow divider, and under the condition of certain pressure, the flow of the flow divider is greatly increased, and the pressure loss is greatly reduced.