Safety Valve Bypass Duct Pressure Equalization
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Solution Overview
Problem
Existing safety valves require complex and time-consuming procedures for pressure equalization after triggering, often necessitating tool-based disconnection and reconnection, which can be dangerous and costly, and may not ensure complete closure due to abrupt pressure changes.
Innovation Solution
A safety valve design featuring a resilient retaining element and a bypass duct that allows pressure equalization without tools, enabling the shut-off body to return to an open position once pressure is equalized, ensuring reliable closure and simplified handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the safety valve uses conventional disconnection and reconnection procedures for pressure equalization, then complete pressure equalization can be achieved, but the process becomes time-consuming and requires specialized tools and personnel
Solution Approach 1:
The invention introduces a bypass duct as an intermediary pressure equalization path that allows pressure balancing to occur through the valve itself without requiring disconnection from the pipe network. The bypass duct connects the inlet and outlet chambers, enabling fluid to flow through this alternative path and equalize pressures while the valve remains connected and operational.
Solution Approach 2:
The safety valve performs its own pressure equalization function through the bypass duct without requiring external tools, specialized personnel, or disconnection from the system. The valve serves itself by providing an integrated pressure equalization mechanism that operates independently, eliminating the need for external intervention.
2Reliability
If the safety valve is disconnected from the pipe network for pressure equalization, then pressure can be equalized with atmospheric pressure, but additional safety measures and tools are required
Solution Approach 1:
The bypass duct serves as an intermediary mechanism that enables pressure equalization while the valve remains connected to the pipe network. Instead of requiring disconnection to access atmospheric pressure, the bypass duct provides a controlled internal path for pressure balancing, eliminating the need for additional safety measures and complex operational procedures.
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 safety valve achieves reliable closure and simplified, tool-free pressure equalization, reducing operational risks and costs, while ensuring the valve remains ready for reactivation after pressure normalization.
Implementation Method 1
a shut-off body (3), which is held by at least one resilient retaining element (4) against the force of a medium traversing through the valve housing (2) in an open position
Implementation Method 2
there is provided at least one bypass duct (9, 10, 11) which, in the closed position of the safety valve, is openable in such a manner that it connects the inlet side of the shut-off body (3) with the outlet side thereof
Data Source
AI summary
The present invention relates to a safety valve (1) having a valve housing (2), in the housing interior of which there is provided a shut-off body (3) which is held in an open position of the safety valve (1) by at least one elastic retention element (4) counter to the force of a medium flowing through the valve housing (2), in which open position the medium flows through a valve opening (5) in the shut-off body (3). Here, the shut-off body (3) is displaceable in the valve housing (2) such that the shut-off body (3), in the event of a pressure drop on its outflow side, moves against a closing body (7) into a closed position of the safety valve (1) in which the closing body (7), which is acted on by at least one resilient pressing element (8), sealingly closes off the valve opening (5) in the shut-off body (3), wherein at least one bypass duct is provided which, in the closed position of the safety valve (1), can be opened to connect the inflow side of the shut-off body (3) to the outflow side thereof until the shut-off body (3), when the pressure has been equalized by the at least one bypass duct, is moved into the open position of the safety valve (1).