Acetylene Supply Monitoring With Gas Dilution and PID Detection
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Solution Overview
Problem
Current methods for monitoring solvent content in acetylene cylinders are not precise or cost-effective, leading to inefficient cylinder switching and contamination in downstream processes, with existing technologies consuming excessive energy and introducing additional solvents during regeneration.
Innovation Solution
A system utilizing a photoionization detector and control unit to continuously monitor solvent concentration in real-time, mixing the acetylene feedstock stream with a diluting gas to reduce interference, and automatically switching cylinders based on preset values, ensuring stable and continuous acetylene supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GC-FID or FTIR is used to detect solvent concentration, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts only the essential detection function needed for solvent concentration monitoring and implements it through a simplified photoionization detector system rather than using complex GC-FID or FTIR equipment. The detection module uses a photoionization detector combined with a control unit to achieve real-time monitoring with adequate precision while avoiding unnecessary system complexity.
Solution Approach 2:
The patent employs a photoionization detector which is a simpler, more cost-effective detection device compared to GC-FID or FTIR systems. This detector can be easily replaced or recalibrated, providing an economical solution for continuous solvent concentration monitoring without the high costs and complexity of laboratory-grade instrumentation.
2Manufacturing precision
If adsorption media are used to remove solvent, then purity is improved, but energy consumption increases
Solution Approach 1:
The patent replaces the mechanical/thermal regeneration process of adsorption media with a detection-and-switching control system. Instead of physically regenerating adsorbents through heating or chemical treatment (which consumes energy), the system uses a photoionization detector to monitor solvent concentration and automatically switches between acetylene cylinders when contamination thresholds are reached, eliminating the need for energy-intensive regeneration operations.
Solution Approach 2:
The system performs self-monitoring and self-regulation through the photoionization detector and control unit, which automatically detect solvent contamination and trigger cylinder switching without requiring external intervention or energy-consuming regeneration processes. The system serves itself by continuously monitoring and autonomously maintaining acetylene purity through intelligent control.
3Ease of operation
If cylinder switching is based on empirical pressure values, then ease of operation is improved, but measurement precision deteriorates
Solution Approach 1:
The patent implements a feedback control system where the photoionization detector continuously monitors solvent concentration in real-time and provides feedback to the control unit. The control unit automatically triggers cylinder switching when the solvent concentration exceeds predetermined thresholds, replacing empirical pressure-based switching with precise, real-time concentration monitoring that maintains both ease of operation and measurement precision.
4Productivity
If continuous real-time monitoring is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent extracts only the essential real-time monitoring function and implements it through a relatively simple photoionization detector and control unit system. This focused approach enables continuous monitoring that improves productivity by optimizing cylinder usage and preventing solvent contamination, while avoiding the complexity of more comprehensive or laboratory-grade monitoring systems.
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
Enables precise, continuous, and cost-effective monitoring of solvent content, reducing solvent contamination and optimizing acetylene cylinder switching, thereby improving process efficiency and reducing economic losses.
Implementation Method 1
acetylene in the acetylene cylinder is gradually consumed, the proportion of acetone mixed into the acetylene will greatly increase
Implementation Method 2
The interior of an acetylene cylinder is filled with a porous filler medium of a certain porosity and a solvent distributed therein
Data Source
AI summary
The present application discloses a system and method for supplying acetylene, the system having at least one acetylene storage apparatus, a detection module, a gas dilution module and a gas supply regulating module. By mixing a feedstock stream outputted from the acetylene storage apparatus with a diluting gas in a specific ratio, a photoionization detector is successfully used to detect a solvent content in the feedstock stream. This real-time and continuous detection method ensures a stable supply of acetylene to a downstream process.