Sealed Pressure Sensor for Clog-Free Fluid Measurement
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Solution Overview
Problem
Conventional fluid measurement apparatuses face operational issues due to clogging of throttling elements caused by high viscosity and large particle quantities in the measured fluid, leading to inaccurate measurements.
Innovation Solution
A fluid measurement apparatus with a sealed pressure sensing element directly placed in the measured fluid, eliminating the need for a throttling element and pressure tap hole, thereby reducing interference and clogging risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a throttling element is disposed in the measured fluid to detect pressure difference, then flow velocity and flow rate can be calculated, but the throttling element is prone to clogging when the fluid has high viscosity or contains large quantities of particles
Solution Approach 1:
The patent removes the throttling element from the measurement system and replaces it with a pressure sensing element that directly contacts the measured fluid. This extraction of the problematic throttling component eliminates the clogging issue while maintaining measurement capability through direct pressure sensing on the fluid surfaces.
Solution Approach 2:
The patent introduces a pressure sensing element as an intermediary between the measured fluid and the measurement system. This intermediary directly senses pressure on the fluid surfaces without requiring fluid to pass through restrictive openings, thereby avoiding clogging while enabling flow measurement through pressure difference detection.
2Measurement precision
If a pressure tap hole is disposed to allow fluid contact with the pressure sensing element, then pressure can be detected, but the pressure tap hole is prone to clogging when the fluid contains particles
Solution Approach 1:
The patent eliminates the pressure tap hole by using a sealed pressure sensing element that directly contacts the measured fluid surfaces. This removes the vulnerable opening that would otherwise be prone to clogging from particles in the fluid.
Solution Approach 2:
The pressure sensing element uses a sealed membrane or diaphragm structure that flexes in response to fluid pressure. This flexible sealing approach allows pressure transmission without creating fixed openings that could be blocked by particles in the measured fluid.
3Measurement precision
If a throttling element is used to lead fluid to the pressure sensing element, then pressure difference can be detected, but the structure becomes more complex and is more prone to clogging
Solution Approach 1:
The patent merges the pressure sensing element directly with the measured fluid by placing it in direct contact with both the upstream and downstream fluid surfaces. This integration eliminates the need for separate throttling elements and connecting passages, simplifying the overall structure while maintaining pressure difference detection capability.
Solution Approach 2:
The patent removes the throttling element and associated complex piping structure from the system. By using a pressure sensing element that directly contacts the fluid at measurement points, the design eliminates unnecessary structural complexity while achieving the same measurement function.
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 enables precise fluid measurement by directly detecting pressure values from the fluid, improving measurement accuracy and preventing clogging, thus ensuring reliable operation even with challenging fluid conditions.
Implementation Method 1
the measured fluid directly impacts the first surface and the second surface, and pressure values generated when the first surface and the second surface are impacted by the measured fluid are detected
Data Source
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AI summary
The present invention provides a fluid measurement apparatus, including a pressure sensing element and a data processing element. The pressure sensing element is disposed in direct contact with a measured fluid, the pressure sensing element is a sealed element, and includes a first surface and a second surface that are disposed opposite to each other, the measured fluid directly impacts the first surface and the second surface, and pressure values generated when the first surface and the second surface are impacted by the measured fluid are detected. The data processing element is connected to the pressure sensing element, and a flow velocity and/or a flow rate of the measured fluid are/is calculated by using the pressure value detected by the pressure sensing element.The present invention resolves a problem that the fluid measurement apparatus cannot operate normally due to clogging of a pressure tap hole.