Integrated Equalization Gate Valve for High Pressure Differentials
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Solution Overview
Problem
Existing piping systems face challenges with flow valves, such as gate valves, when large pressure differentials are present, leading to difficulty in operation and potential damage, and the external equalization valve is vulnerable to damage and requires separate operation, making the process time-consuming.
Innovation Solution
An integrated equalization valve with a gate valve assembly that includes a sliding gate and actuation stem, where the equalization valve equalizes pressure by allowing gas or fluid flow through equalization channels, and the actuation stem moves between positions to block or unblock these channels, ensuring safe operation and integration with the flow valve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an external equalization valve is provided, then pressure equalization function is added, but the valve is vulnerable to damage during transportation and operation
Solution Approach 1:
The equalization valve is integrated into the gate valve body, combining two previously separate components into one unified structure. The equalization valve shares the same valve body, actuation mechanism, and sealing system as the gate valve, eliminating the need for a separate external equalization valve while providing pressure equalization functionality.
Solution Approach 2:
The equalization valve is nested within the gate valve structure. The equalization valve components are positioned inside the gate valve body, with the equalization piston and seal assembly contained within the same housing as the gate valve mechanism, creating a compact integrated design.
2Reliability
If an external equalization valve is used, then pressure equalization is achieved, but separate operation adds time and complexity
Solution Approach 1:
The actuation mechanisms of the gate valve and equalization valve are merged into a single integrated system. A single actuator can simultaneously control both the gate valve disc and the equalization piston, allowing both valves to open and close together through one operational action, thereby eliminating the time loss associated with separate operation.
Solution Approach 2:
The integrated valve assembly provides multiple functions through a single device. The same valve body and actuation system perform both flow control (gate valve function) and pressure equalization (equalization valve function), making the system more efficient by eliminating the need for separate operational steps.
3Ease of operation
If a gate valve operates under large pressure differential, then flow control is achieved, but damage may occur to the flow valve
Solution Approach 1:
The equalization valve performs preliminary pressure equalization before the gate valve is fully opened. By equalizing the pressure across the gate valve disc first, the system prevents the large pressure differential that would otherwise cause damage to the valve during operation, allowing safe opening and closing of the gate valve.
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 integrated solution allows for safe and efficient operation of the valve assembly by equalizing pressure across the valve, reducing the risk of damage and simplifying the operation process by integrating the equalization function within the valve assembly, thus enhancing operational reliability and efficiency.
Implementation Method 1
the equalization valve equalizes pressure by allowing gas or fluid flow through equalization channels
Data Source
AI summary
Example aspects of an equalization valve are disclosed. The equalization valve can comprise a gate defining a first face, a second face, and a sidewall extending between the first face and second face, the gate further defining an equalization chamber extending into the sidewall, a first equalization channel extending from the first face to the equalization chamber, and a second equalization channel extending from the second face to the equalization chamber; and an actuation stem defining a lower portion slidably engaged with the equalization chamber, the actuation stem movable between a first position, wherein the actuation stem blocks the first equalization channel to prevent the flow of one of gas and fluid through the equalization valve, and a second position, wherein the actuation stem unblocks the first equalization channel to allow the flow of the one of gas and fluid through the equalization valve.