Integrated Flow Deviating Body for Leakage-Resistant Fluid Metering

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Solution Overview

Problem

Existing fluid flow metering apparatuses in cylindrical tube sections face challenges in easily replacing the flow deviating body due to abrasion, which affects measurement accuracy and reliability.

Innovation Solution

The apparatus features a flow deviating body with high and low pressure taps located on its surface, allowing for direct transduction into electric signals within the body, eliminating the need for external tapping lines and enabling easy replacement, with optional wireless communication for secure and concealed measurement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If external tapping lines are used to connect pressure sensors to the flow deviating body, then pressure measurement is possible, but the risk of leakage and damage increases and replacement becomes difficult

Engineering Contradiction:
Improvemeasurement reliabilityVSAvoidease of replacing flow deviating body
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The pressure sensor is integrated directly into the flow deviating body, merging the measurement function with the flow conditioning component. This eliminates external tapping lines and their associated leakage risks, while enabling easy replacement of the entire assembly as a single unit.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The flow deviating body itself serves as the intermediary structure that both conditions the flow and houses the pressure sensor. By making the flow deviating body the carrier of the sensor, the patent eliminates the need for separate tapping lines and connection points.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If external tapping lines are used for pressure measurement, then pressure differential can be measured, but the risk of leakage and damage increases

Engineering Contradiction:
Improvepressure differential measurementVSAvoidleakage and damage risk
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The pressure sensor and flow deviating body are merged into a single integrated component. This eliminates external tapping lines that are susceptible to leakage and damage, while maintaining accurate pressure differential measurement through direct sensing within the flow path.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts the pressure sensing function from external tapping lines and embeds it directly into the flow deviating body. This removes the vulnerable external connections while preserving the measurement capability.

Inventive Principle:
Principle #2Taking out (Extraction)

3Stability of the object's composition

If the flow deviating body is permanently fixed with radial fins, then flow stability is achieved, but replacement becomes difficult

Engineering Contradiction:
Improveflow stabilityVSAvoidease of replacing flow deviating body
Core Design Contradiction:
Stability of the object's compositionVSEase of repair

Solution Approach 1:

The flow deviating body is designed as a separate, modular segment that can be independently removed and replaced. The radial fins are integrated as part of this replaceable module, allowing the component to be swapped without affecting the overall system structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The mounting arrangement transitions from permanent fixation to a dynamic, replaceable configuration. The flow deviating body can be installed or removed as needed, providing operational flexibility while maintaining flow stability during measurement.

Inventive Principle:
Principle #15Dynamics

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 solution enhances the ease of replacing the flow deviating body, reduces the risk of leakage and damage, and provides accurate, reliable fluid flow metering by eliminating external tapping lines, while allowing for precise monitoring and processing of pressure differences within the flow deviating body.

Implementation Method 1

at least one pressure transducer is configured to transduce at least either both the high pressure and the low pressure or a pressure difference between the high pressure and the low pressure into electric signals

Methodology Applied
Scientific EffectPressure transduction: Piezoelectric Effect

Implementation Method 2

measuring a differential pressure caused by a restriction in the flow line which generates a pressure drop that bears a relationship to the flow rate

Methodology Applied
Scientific EffectDifferential pressure measurement: Pressure Drop

Data Source

PatentEP2787329B1Metering a flow of a fluid through a cylindrical tube section
Publication Date: 2017.02.15 NANJING YOUYANG CONTROL TECH
  • EP2787329B1 patent drawing
  • EP2787329B1 patent drawing
  • EP2787329B1 patent drawing

AI summary

For metering a flow of a fluid through a cylindrical tube section (2), a flow deviating body (7) is arranged in the tube section (2) such that an annular flow channel (16) remains between an outer diameter (14) of the flow deviating body (7) and an inner diameter (15) of the cylindrical tube section (2). A high pressure of the fluid is tapped at a front point of the flow deviating body (7), and a low pressure of the fluid in the annular flow channel (16) is tapped at at least one point at the outer diameter (14) of the flow deviating body (7). At least one of (i) both the high pressure and the low pressure, and (ii) a pressure difference between the high pressure and the low pressure is transduced into electric signals.