Flow Control Valve With Dual Differential Pressure Sensing
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Solution Overview
Problem
Existing fluid distribution systems face challenges in accurately measuring differential pressure without manual intervention, as traditional methods require cumbersome operator handling and may suffer from sensor accuracy issues over time.
Innovation Solution
A valve design incorporating a stationary differential pressure sensor with manual access points for a non-stationary sensor, allowing for occasional manual checks and recalibration to ensure accurate and trustworthy long-term measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a stationary differential pressure sensor is integrated into the valve body, then manual handling is eliminated and automation is improved, but sensor accuracy may deteriorate over time due to long-term use without calibration
Solution Approach 1:
The valve body is pre-equipped with an integrated stationary differential pressure sensor during manufacturing, eliminating the need for manual sensor installation and enabling automated continuous pressure monitoring throughout the valve's operational life
Solution Approach 2:
Pressure ports are provided as intermediary access points that allow connection of external calibration equipment or reference sensors, enabling periodic verification and calibration of the integrated stationary sensor without disrupting normal automated operation
2Measurement precision
If traditional portable differential pressure sensors are used with measuring nipples, then measurement accuracy can be maintained through manual calibration, but operator handling becomes cumbersome and productivity decreases
Solution Approach 1:
The valve system provides self-service through its integrated stationary differential pressure sensor that continuously monitors pressure without requiring operator intervention, eliminating the need for manual sensor handling while maintaining measurement capability
Solution Approach 2:
Pressure ports serve as intermediary access points that enable occasional manual calibration or verification using portable sensors, combining the benefits of automated continuous monitoring with periodic manual accuracy verification
Data Source
AI summary
A valve for adjusting a fluid flow. The valve includes a valve body, a flow having an inlet and an outlet located downstream of the inlet, a flow adjustment arrangement for adjusting the flow of liquid from the inlet to the outlet, wherein liquid upstream of the flow adjustment arrangement but downstream of the inlet has an upstream pressure, and liquid downstream of said flow adjustment arrangement but upstream of the outlet has a downstream pressure, a stationary differential pressure sensor configured to measure a pressure difference between the upstream pressure and the downstream pressure, and a pair of pressure ports for enabling temporary connection of a non-stationary differential pressure sensor for measuring the pressure difference between the upstream pressure and the downstream pressure. Also a method for use with such a valve.