Inline Pressure Event Indicator with Resettable Paddle
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Solution Overview
Problem
Conventional pressure event indicator systems in closed pressurized systems, such as refrigeration and boiler systems, are inefficient as they require manual inspection and system shutdown to identify pressure release events, and existing indicators need dismantling to access ruptured disks, making them time-consuming and prone to errors.
Innovation Solution
An inline pressure event indicator device positioned downstream of pressure relief valves, featuring a pressure-actuated paddle that shifts from a closed to an open position when pressurized fluid passes through, with a visual indicator arm that remains in an alert position until manually reset, allowing operators to identify which relief valve has opened, even if it subsequently closes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual inspection of pressure relief valves is performed to identify pressure release events, then the system can detect pressure events, but the process requires system shutdown and is time-consuming
Solution Approach 1:
The pressure relief valve system performs self-indication through the paddle device. When pressure is relieved, the paddle automatically shifts position to indicate the event, eliminating the need for manual inspection. The system serves itself by providing visible feedback without human intervention or system shutdown.
Solution Approach 2:
The manual inspection process is replaced by a mechanical indication system. The paddle mechanism automatically translates pressure events into visible positional changes, substituting human inspection with an automated mechanical indicator that provides immediate visual feedback.
2Reliability
If conventional pressure event indicators are used, then pressure release events can be detected, but the indicators require dismantling to access ruptured disks
Solution Approach 1:
The indication function is extracted from the internal rupture disk mechanism and presented externally through the paddle's visible position. The paddle serves as an external indicator that shows pressure events without requiring access to or dismantling of the internal rupture disk components.
Solution Approach 2:
The paddle acts as an intermediary between the internal pressure relief mechanism and the external observer. It translates internal pressure events into external visual signals, allowing operators to detect pressure events without直接接触 or dismantling the internal rupture disk components.
3Loss of information
If pressure relief valves are equipped with indicators, then pressure events can be identified, but existing indicators cannot distinguish which specific valve opened
Solution Approach 1:
The indicator system is segmented and distributed to each individual pressure relief valve. Each valve has its own paddle indicator, allowing operators to identify which specific valve opened by observing which paddle is in the open position. This segmentation provides location information without requiring a complex centralized system.
Solution Approach 2:
The paddle indicator serves multiple functions: it indicates pressure events, identifies the specific valve location, and provides visual feedback all through a single simple component. This multi-functionality achieves location identification without adding significant complexity to the system.
4Measurement precision
If the system is shut down for inspection of pressure relief valves, then accurate identification of pressure events can be made, but system productivity is reduced
Solution Approach 1:
The system provides self-indication through the visible paddle position, allowing operators to identify pressure events without shutting down the system. The continuous operation is maintained while the indicator provides accurate real-time feedback on pressure relief events.
Solution Approach 2:
The shutdown-based inspection system is replaced by a continuous visual indication system. The paddle mechanism provides ongoing feedback on pressure events without interrupting system operation, maintaining both measurement precision and productivity simultaneously.
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
Enables quick and efficient identification of pressure release events without system shutdown, reducing downtime and improving safety by providing a clear visual indication of which vessel or pipe has experienced pressure relief, while minimizing fluid loss and preventing re-occlusion of the indicator.
Implementation Method 1
the paddle can be moved from the closed position to the open position by an amount of fluid passing through the bore and having a pressure at least as high as a threshold pressure
Data Source
AI summary
The present invention includes pressure event indicators that identify specific pressurized vessels or pipes from which a pressurized fluid has been exhausted, closed pressurized systems that implement such pressure event indicators, and methods of using such pressure event indicators. Embodiments of such pressure event indicators may include a housing having a substantially horizontal elongate passage, a rotatable axle orthogonally passing through the passage, a paddle fixedly attached to the axle having a closed position, an open position, and a shape that is complementary to a portion of the passage and that occludes a portion of the passage when the paddle is in the closed position, and at least one visual indicator outside of the housing and fixedly attached to the axle, where the purpose of the visual indicator is to identify a position of the paddle to an observer.