Gas Sampling Valve Assembly With Dual-Biased Sealing Stages
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Solution Overview
Problem
Existing gas sampling apparatuses face challenges in efficiently collecting, transporting, and analyzing pressurized gas samples, particularly in industrial contexts like oil and gas exploration and natural gas storage, where periodic sampling is required for data acquisition and chemical tagging.
Innovation Solution
A valve assembly for a gas sampling apparatus comprising a valve body, core valve, and core valve carrier, which are biased to closed positions and can be displaced to allow fluid communication, ensuring airtight seals and controlled fluid pathways for sample collection and analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a valve assembly is designed with multiple biased components (core valve and core valve carrier) to ensure reliable sealing, then the sealing reliability is improved, but the device complexity increases
Solution Approach 1:
The valve assembly is divided into two independently biased components: the core valve (with pin) and the core valve carrier (with body). Each component has its own biasing mechanism that can be independently controlled, allowing separate sealing actions at different stages of the sampling process. This segmentation enables reliable multi-stage sealing while maintaining modular control.
Solution Approach 2:
The core valve carrier body is biased to a closed position that seals the carrier cavity before the core valve pin is actuated. This preliminary sealing action ensures that the sample chamber is isolated from the carrier cavity before the core valve opens, preventing premature sample loss or contamination.
2Reliability
If the valve components are biased to closed positions with multiple sealing points, then the sealing reliability is improved, but the ease of operation deteriorates
Solution Approach 1:
The actuation mechanisms for both the core valve pin and the core valve carrier body are merged into a single integrated actuator system. A single actuation action simultaneously controls both biased components, coordinating their movement to achieve the required sealing and opening sequences without requiring separate control operations.
Solution Approach 2:
The valve assembly employs dynamic biasing where the biased components can transition between closed and open positions based on actuation forces. The biasing springs provide restoring forces that automatically return components to their default closed positions, enabling reliable operation while simplifying the control sequence through passive mechanical recovery.
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 assembly provides reliable sealing and controlled fluid communication, enhancing the efficiency of gas sample collection, transportation, and analysis, suitable for various industrial applications beyond oil and gas.
Implementation Method 1
a core valve, wherein a pin of the core valve the core valve is biased to a first, closed position; and a core valve carrier, wherein a body of the core valve carrier is biased to a first, closed position
Data Source
AI summary
A valve assembly for a gas sampling apparatus. In one embodiment, the apparatus may comprise a valve body; a core valve, wherein a pin of the core valve the core valve is biased to a first, closed position; and a core valve carrier, wherein a body of the core valve carrier is biased to a first, closed position; wherein the pin of the core valve and the body of the core valve carrier may individually be displaced from their biased, first closed positions.