Infrared Gas Detection Device with Movable Optical Window
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Solution Overview
Problem
Current infrared detection devices for coal mine polar gases face challenges such as large errors due to interference from background gases, complex operation, and inefficiencies in gas analysis, which can lead to inaccurate results and safety risks during coal mine operations.
Innovation Solution
The development of an infrared detection device with a gas pool assembly featuring a moveable optical window and a micro-air pump, allowing for manual or automatic cleaning of the gas pool, which reduces errors, conserves nitrogen gas, simplifies the cleaning process, and ensures accurate gas analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a traditional gas pool structure is used for infrared detection, then the device structure is simple, but background gas interference cannot be completely discharged leading to inaccurate test results
Solution Approach 1:
The gas pool is divided into multiple segments with movable partitions that can be independently controlled. This segmentation allows different regions of the gas pool to be cleaned or pressurized separately, enabling more effective displacement of background gas while maintaining a manageable structural complexity through modular design.
Solution Approach 2:
The gas pool incorporates movable optical windows and adjustable partitions that can dynamically change the gas flow paths and pressure distribution. This dynamic capability allows the system to adaptively optimize gas circulation and displacement processes, improving detection accuracy without requiring a completely complex fixed structure.
2Productivity
If gas concentration is monitored by continuous sampling with traditional gas pool, then real-time detection is achieved, but background gas interference cannot be thoroughly eliminated requiring longer gas blowing time
Solution Approach 1:
The system performs preliminary cleaning of the gas pool before actual detection by using the movable partitions to guide cleaning gas through all regions. This preliminary action ensures that background gas is displaced before sampling begins, allowing rapid subsequent measurements without sacrificing accuracy due to residual interference.
Solution Approach 2:
The gas pool maintains continuous gas circulation and pressure equalization through its movable structure, ensuring that the detection environment remains consistently free of background gas interference. This continuous action allows rapid sequential measurements without repeated lengthy cleaning periods.
3Measurement precision
If N2 gas is used to clean the gas pool in traditional devices, then background gas is displaced, but N2 gas is wasted and cleaning efficiency is low
Solution Approach 1:
The system uses pressure differential control through movable partitions to guide gas flow paths, allowing more efficient displacement of background gas with reduced volumes of cleaning gas. The pneumatic control of movable elements optimizes the distribution and utilization of N2 gas, reducing waste while maintaining effective cleaning.
4Measurement precision
If a detachable gas pool is used in traditional infrared detection device, then gas cleaning is possible, but the operation process becomes complicated
Solution Approach 1:
The gas pool system performs self-cleaning through its own movable partitions and integrated gas circulation pathways. The movable elements automatically guide cleaning gas through the pool regions without requiring external disassembly or complex manual operations, maintaining detection accuracy while simplifying the user操作流程.
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
This solution provides reliable and accurate detection of coal mine polar gases, enabling timely forecasting and prevention of fire disasters, and is applicable to other industrial fields.
Implementation Method 1
different components of the gas to be detected have to be adsorbed to and desorbed from a chromatographic column at different time periods
Implementation Method 2
Systems and methods of infrared detection of coal mine polar gas
Data Source
AI summary
An infrared detection device can be used to detect coal mine polar gas. The detection device can include a central processor and a gas pool assembly having a moveable optical window. The moveable optical window can include a stationary pool body and a moveable pool body inserted into the stationary pool body.