Valve arrangement
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Solution Overview
Problem
Existing fluid distribution systems face challenges in accurately measuring pressure at valve inlets, particularly in smaller valve bodies where traditional methods like flushing spindles are difficult to implement.
Innovation Solution
A valve arrangement with a measuring channel that includes an additional opening upstream of a pressure drop, allowing for pressure measurement at the valve inlet through a measuring nipple with separate passages for each chamber, enabling fluid pressure measurement in both the first and second chambers without direct communication between them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a traditional flushing spindle is used to measure pressure at the valve inlet, then pressure measurement is enabled, but the valve body dimensions must be sufficiently large to accommodate the flushing spindle structure
Solution Approach 1:
The measuring channel is nested within the valve body structure itself, with the measuring nipple integrated into the valve inlet region. The first passage connects the measuring channel to the first chamber, allowing pressure measurement without requiring external flushing spindle structures. This nesting approach enables pressure measurement in compact valve bodies by utilizing the existing valve internal geometry.
Solution Approach 2:
The invention introduces a new spatial dimension for pressure measurement by creating a dedicated measuring channel with separate passages (first passage for first chamber, second passage for second chamber) that access pressure points through the valve body walls rather than requiring linear extension of measurement ports. This dimensional reorganization allows pressure measurement in compact configurations.
2Measurement precision
If a measuring channel extends into a second chamber sealed off from the first chamber, then pressure measurement in the second chamber is enabled, but pressure measurement at the valve inlet (first chamber) becomes inaccessible
Solution Approach 1:
The measuring nipple is segmented into multiple independent passages: a first passage that connects the measuring channel to the first chamber, and a second passage that connects the measuring channel to the second chamber. This segmentation allows simultaneous or selective access to pressure information from both chambers through the same measuring nipple structure, eliminating the information loss problem.
Solution Approach 2:
The measuring nipple is designed as a multi-functional component that can measure pressure from both the first chamber (via first passage) and the second chamber (via second passage). This universal design allows a single measuring device to access pressure information from multiple sealed-off chambers, making the measurement system adaptable to different measurement needs without requiring separate measurement ports.
Data Source
AI summary
A valve arrangement including: a valve inlet, a valve outlet arranged downstream of the valve inlet, a first chamber arranged directly downstream of the inlet, and a second chamber arranged between the first chamber and the valve outlet. The valve arrangement further includes a measuring nipple comprising a measuring channel for receiving a measuring device, and a closing arrangement having open positions and a closed position, wherein the closing arrangement in its closed position is configured to prevent fluid communication between the first chamber and the second chamber via the closing arrangement, and wherein the closing arrangement in its open positions is configured to allow for fluid communication between the first chamber and the second chamber via the closing arrangement.