Safety Isolation Plug with Flow Deflector for Pressure Detection
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Solution Overview
Problem
In pipeline systems, the inability to safely determine if a pipe section is pressurized poses a risk to operators and can result in accidents and environmental damage due to the failure of boundary or isolation valves, leading to undetected residual pressure.
Innovation Solution
A safety isolation plug fitting with a valve assembly and flow deflector that allows users to detect and vent pressurized fluid without disconnecting the plug, automatically returning to a closed position to prevent further fluid escape, and redirects the fluid stream away from the user, ensuring safety and preventing uncontrolled releases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional plug fittings are disconnected from isolated pipes, then users can perform maintenance or installation tasks, but undetected residual pressure can cause the fittings to blow off, causing injury and environmental damage
Solution Approach 1:
The patent applies preliminary action by enabling pressure detection and venting to occur before the plug fitting is disconnected from the pipe. The system allows users to safely identify and vent pressurized flow through the valve assembly and flow deflector mechanism, eliminating the hidden danger of residual pressure before maintenance or installation tasks begin.
Solution Approach 2:
The flow deflector acts as an intermediary device between the pressurized fluid and the user. It redirects the pressurized fluid stream away from the user while allowing pressure detection and controlled venting, serving as a protective mediator that enables safe interaction with potentially pressurized pipes.
2Productivity
If boundary valves are relied upon to isolate pipe sections, then pipeline maintenance can be performed, but valve corrosion or defects can lead to undetected pressure and fluid leakage
Solution Approach 1:
The patent implements feedback by providing users with direct visual or tactile indication of pressure status through the valve assembly mechanism. When the valve is opened slightly during the detection process, any pressurized fluid flow is redirected by the flow deflector in a visible manner, giving immediate feedback about the actual pressure state regardless of boundary valve condition.
Solution Approach 2:
The system enables self-service pressure verification where users can independently detect and vent pressure without relying on external verification systems or assuming boundary valve functionality. The plug fitting itself becomes the tool for verifying isolation status and managing pressure safety.
3Measurement precision
If users partially open quick connects or unthread pipe plugs to check for pressure, then they can detect pressurized flow, but they expose themselves to hazardous materials and uncontrolled fluid release
Solution Approach 1:
The flow deflector serves as a protective intermediary that intercepts and redirects pressurized hazardous fluids away from the user. It allows accurate pressure detection through controlled valve opening while preventing direct exposure to harmful materials by channeling the fluid flow through a safe path.
Solution Approach 2:
The patent extracts the hazardous function of direct fluid contact from the user's experience. By incorporating the flow deflector mechanism, the system separates the detection function from the exposure risk, allowing users to obtain pressure information without the dangerous element of direct contact with pressurized hazardous materials.
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 safe detection and venting of pressure in pipes without disconnection, reducing the risk of injury and environmental emissions by allowing controlled pressure release and shielding the user from hazardous fluids.
Implementation Method 1
The flow deflector can redirect at least a portion of the pressurized fluid stream in a direction away from the user
Implementation Method 2
the force of the fluid against the flow deflector can cause the valve assembly to automatically return to the closed position, and thus prevent further fluid from escaping the pipe
Data Source
AI summary
A safety isolation plug fitting for detecting pressurized fluid in a pipe may include a body defining an inlet adapted to be in fluid communication with the pipe, an outlet, and a passageway extending between the inlet and the outlet. A valve assembly may be seated in the passageway and movable between a closed position in which fluid communication between the inlet and the outlet is inhibited, and an open position in which a pressurized fluid in the pipe can flow between the inlet and the outlet. A flow deflector can be in fluid communication with said outlet that is configured to redirect at least a portion of the pressurized fluid exiting said outlet in direction away from a user.