Bleeder Valve Venting Structure for Controlled Plug Pressure Release
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Solution Overview
Problem
Existing safety release bleeder valves do not effectively manage pressure buildup behind the plug, posing risks and failing to meet regulatory requirements for controlled pressure release in pressurized pipes.
Innovation Solution
A safety release bleeder valve design featuring a barrel with a venturi-like constriction and a plug with a tapered shaft, allowing for controlled pressure release through a vent hole, along with a lock nut for secure mounting, to prevent debris accumulation and ensure safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a standard plug is used to seal the valve, then sealing effectiveness is improved, but pressure buildup behind the plug cannot be released creating safety risks
Solution Approach 1:
The plug is segmented into a main body and a separate pressure release mechanism. The throughbore in the plug body creates a controlled pathway that allows pressure equalization between the upstream and downstream sides of the plug, eliminating dangerous pressure buildup while maintaining sealing effectiveness when the plug is in the closed position.
Solution Approach 2:
The vent hole in the barrel acts as an intermediary element that facilitates pressure equalization. This small aperture allows controlled communication between the pressurized space behind the plug and the downstream side, preventing pressure differential that could compromise sealing or create safety hazards.
2Ease of operation
If a vent hole is added to release pressure, then pressure control is improved, but debris may accumulate and clog the vent
Solution Approach 1:
The venturi-like constriction in the barrel and the tapered shaft on the plug create a three-dimensional geometry that prevents debris accumulation. The converging-diverging shape of the venturi and the tapered configuration direct flow in a manner that prevents particles from settling or blocking the vent hole, maintaining pressure control functionality.
Solution Approach 2:
The cross-sectional area of the vent passage is varied along its length, creating a venturi effect with a narrowed throat section. This parameter change in the passage geometry optimizes flow dynamics to prevent debris clogging while maintaining effective pressure equalization.
3Ease of repair
If the plug is made removable for maintenance, then accessibility is improved, but risk of accidental removal increases
Solution Approach 1:
The lock nut is pre-installed on the threaded barrel and engaged with the plug's external threads. This preliminary locking action requires deliberate intervention to disengage, preventing accidental removal while allowing intentional removal for maintenance when needed.
Solution Approach 2:
The threaded connection between the lock nut and plug creates a mechanical coupling that replicates the secure attachment needed to prevent accidental removal, while maintaining the ability to deliberately disconnect for maintenance purposes.
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 controlled and safe release of pressure built up behind the plug, meeting regulatory standards and minimizing risks associated with unvented plugs, while preventing debris from clogging the valve.
Implementation Method 1
The barrel bottom end interior has a venturi-like constriction with a throughbore wall diametrically decreasing to form a mating valve seat member with the plug
Data Source
AI summary
A safety release bleeder valve serving as a plug includes a barrel having an exterior surface and an interior throughbore surface for matingly receiving a plug having a top end with exterior threads and an interior socket for receiving a driver tool for moving the plug between an open venting state and a closed non-venting state.