Flow Conditioner Stepped Elements Reduce Pressure Loss
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Solution Overview
Problem
Flow meters face inaccuracies due to disturbances in fluid flow profiles caused by piping system components, which are not adequately addressed by conventional flow conditioners, especially in scenarios where sufficient straight run pipe is not available.
Innovation Solution
A flow conditioner with a ring having stepped elements on its inner surface and a fin assembly is used to condition the fluid flow, reducing disturbances by creating shearing effects and minimizing pressure loss, allowing for accurate measurements with shorter straight run distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional flow conditioners are used, then flow profile disturbances are reduced, but sufficient straight run pipe length is required which reduces installation flexibility
Solution Approach 1:
The flow conditioner is divided into multiple functional elements including a hub, multiple blades arranged radially, and optional fins. This segmentation allows each component to address specific flow disturbance mechanisms independently, achieving effective flow conditioning in a more compact configuration that reduces the required straight run length while maintaining measurement accuracy.
Solution Approach 2:
Different components of the flow conditioner are designed with specific local properties: blades with particular pitch angles and profiles to address radial flow disturbances, fins to control axial flow patterns, and a hub structure to manage central flow characteristics. This localized optimization of flow control properties enables effective disturbance reduction in a compact design, reducing the needed straight run length while preserving measurement precision.
2Measurement precision
If flow conditioners with complex structures are used to reduce disturbances, then flow profile is improved, but pressure loss increases
Solution Approach 1:
The flow conditioner employs dynamically optimized blade and fin geometries with specific pitch angles and profiles that are designed to adapt to varying flow conditions. This dynamic design approach allows the conditioner to effectively reduce flow profile disturbances across different flow rates while minimizing pressure loss through optimized flow path guidance and reduced turbulence generation.
Solution Approach 2:
The flow conditioner utilizes carefully selected geometric parameters including blade pitch angles, blade profiles, fin dimensions, and spacing relationships. These parameters are optimized to achieve the right balance between flow profile uniformity and pressure loss by controlling the intensity and distribution of flow conditioning actions, ensuring effective disturbance reduction while minimizing energy dissipation.
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 flow conditioner stabilizes fluid flow profiles, enabling accurate measurements by flow meters even in constrained piping configurations, reducing the required straight run distance and minimizing pressure loss, thus improving installation flexibility and energy efficiency.
Implementation Method 1
contacting a surface of the flow conditioner reducing one or more disturbances existing in a flow profile of the fluid
Data Source
AI summary
A flow conditioner for use in a conduit includes a ring having a plurality of stepped elements disposed on an inner surface of the ring. A method for conditioning fluid using a flow conditioner includes coupling a flow conditioner to an interior surface of a conduit, flowing fluid through the conduit, contacting a surface of the flow conditioner with the flowing fluid, positioning a flow meter downstream of the flow conditioner, and measuring the flow profile of the fluid with the flow meter. Contacting the flow conditioner reduces one or more disturbances in a flow profile of the fluid. A flow conditioner includes a ring having at least one of a stepped element formed on an inner surface of the ring or a fin assembly coupled to the ring.