Adjustable Pressure Relief Valve for Stable Draft Beer Keg Pressure
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Solution Overview
Problem
Conventional pressure relief valves are not suitable for applications where the desired pressure varies, and they are inconvenient to use when the inlet and outlet pressures are close to each other, as they require separate connections and have fixed outlet pressures.
Innovation Solution
A regulable pressure relief valve for draft beer kegs is designed with a valve body housing, coaxially arranged compression springs, and a pressure exerting block, allowing for pressure regulation through a threaded structure and O-rings for sealing, enabling adjustable pressure settings and integrated connections for inlet and outlet pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an ordinary pressure relief valve with constant outlet pressure is used, then the outlet pressure is stable, but it is not applicable to equipment where the desired pressure varies
Solution Approach 1:
The pressure relief valve incorporates a movable piston that can be positioned at different locations along the valve body, allowing the outlet pressure to be dynamically adjusted. When the piston moves to different positions, it changes the effective area ratio between the inlet and outlet, thereby achieving different outlet pressures. This dynamic adjustment mechanism enables the valve to adapt to varying pressure requirements while maintaining stable outlet pressure during operation.
2Reliability
If separate inlet and outlet connections are used in conventional pressure relief valves, then the pressure regulation function is achieved, but it is inconvenient to connect when the high-pressure inlet and stable-pressure outlet are too close to each other
Solution Approach 1:
The valve integrates the inlet connection and outlet connection into a single integrated valve body structure with a unified sealing mechanism. The piston moves within the valve body to simultaneously control both inlet and outlet flows, merging what were previously separate connection functions into one compact unit. This integration allows the inlet and outlet to be positioned very close to each other while maintaining effective pressure regulation, greatly improving connection convenience in compact spaces.
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 provides a simple, easy-to-operate, and stable pressure regulation, allowing the valve to maintain consistent outlet pressure despite varying inlet pressures, and integrates inlet and outlet connections for compactness and convenience.
Implementation Method 1
a first compression spring (2), a mushroom-shaped ejector rod (3), a second compression spring (4)... the first compression spring is put on the retractable rod (31) of the ejector rod (3)... the second compression spring (4) is arranged between the top of the mushroom head (32) and the pressure exerting block (5)... the acting force of the second compression spring (4) overcomes the restoring force of the first compression spring (2) to change the axial pressure of the ejector rod (3)
Data Source
AI summary
The present invention discloses a regulable pressure relief valve for a draft beer fresh-keeping keg, comprising a valve body housing, a first compression spring, a mushroom-shaped ejector rod, a second compression spring and a pressure exerting block. Said first compression spring, ejector rod, second compression spring and pressure exerting block are coaxially distributed; the ejector rod comprises a retractable rod and a mushroom head; the first compression spring is put on the retractable rod and the two ends of the first compression spring is stressed between the bottom of the mushroom head and the valve body housing; the two ends of the second compression spring is stressed between the top of the mushroom head and the pressure exerting block; a pressure regulation at the top of the retractable rod is realized by exerting a pressure on the pressure exerting block and thus realize the pressure regulation function.