Flow Meter Baffle Insertion Element Design
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Solution Overview
Problem
Existing flow meters for measuring fluid flow velocity at high pressures suffer from structural weaknesses at baffle locations and openings, leading to potential leaks and increased pressure losses due to the insertion of detectors and baffles, which compromises measurement accuracy and reliability.
Innovation Solution
A modular insertion element with a base portion and brackets is introduced into the measurement tube, allowing the baffle to be positioned between the brackets, eliminating structural weak points and enabling adjustable sizes for different fluid properties, while amplifying interference through strategically placed projections to enhance vortex formation and detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If openings are provided in the measurement tube for receiving the detector and baffle, then the flow meter can be assembled and function, but the structure of the measurement tube is weakened and cracks can form leading to leaks
Solution Approach 1:
The flow meter is divided into separate components: the measurement tube and the insertion element. The insertion element contains the detector and baffle, and is inserted into the measurement tube without requiring openings in the measurement tube itself. This segmentation maintains the integrity of the measurement tube while enabling assembly of all components.
Solution Approach 2:
The insertion element is nested inside the measurement tube. The insertion element contains the detector and baffle within its structure, and this entire assembly is inserted into the measurement tube. This nesting approach allows all components to be housed together without creating weak points in the measurement tube.
2Ease of operation
If an insertion tube is inserted into the measurement tube to hold the baffle and detector, then the components can be positioned, but the inner diameter of the measurement tube is reduced causing pressure losses and increased flow resistance
Solution Approach 1:
Instead of inserting a tube throughout the measurement tube, the invention uses a localized insertion element with brackets that engage specific portions of the measurement tube. The baffle and detector are positioned only where needed, rather than having a continuous insertion tube reducing the inner diameter along the entire length of the measurement tube.
3Productivity
If the baffle is formed at the measurement tube to generate interference, then the flow velocity can be measured, but the structure of the measurement tube is weakened at the points where the baffle is formed
Solution Approach 1:
The baffle is extracted from the measurement tube and placed on the insertion element instead. The insertion element serves as the carrier for the baffle, separating the baffle function from the measurement tube structure. This allows the measurement tube to maintain its full structural strength while still enabling flow velocity measurement through the baffle's interference generation.
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 design ensures a leak-tight connection, reduces pressure losses, and allows for accurate measurement of fluid flow velocity at high pressures and varying viscosities, with the ability to detect low flow velocities effectively, maintaining structural integrity and simplifying component replacement.
Implementation Method 1
the baffle is arranged in the measurement space and wherein a detector for detecting the interference is furthermore arranged downstream of the baffle
Implementation Method 2
a detector for detecting the interference is furthermore arranged downstream of the baffle
Data Source
AI summary
A flow meter for measuring the flow velocity of a fluid includes a measurement tube that is axially bounded by at least one flange end and that forms a measurement space that can be flowed through by the fluid. At least one baffle is provided for generating interference in the flow, wherein the baffle is arranged in the measurement space. A detector for detecting the interference is arranged downstream of the baffle. An insertion element is introduced into the measurement tube and has a base portion. The base portion is arranged in the flange end. The insertion element has brackets that adjoin the base portion and that project into the measurement space, with the baffle being formed and its position in the measurement space being held between the brackets.


