Gas Leakage Sensing Device Using Bubble Detection
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Solution Overview
Problem
Existing industrial gas detection systems face challenges in accurately measuring the flow rate and volume of small gas leaks due to the compressibility of gas, leading to insufficient detection accuracy.
Innovation Solution
The system introduces leaking gas into a liquid to generate bubbles, using a bubble sensing component to measure the size and frequency of bubbles, thereby accurately detecting the flow rate and volume of the leaking gas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If gas measuring sensors and flow meters are installed to detect gas leaks, then gas leakage detection capability is provided, but measurement precision is insufficient for small flow gas leaks due to gas compressibility
Solution Approach 1:
The patent introduces liquid as an intermediary medium to convert gas flow detection into bubble detection. Gas leaks are introduced into the liquid, creating bubbles that rise to the surface. The bubble sensing component detects these bubbles, and by measuring bubble size and frequency, the system accurately determines gas flow rate and volume, overcoming the limitations of direct gas measurement
Solution Approach 2:
The patent replaces traditional mechanical gas measurement systems (gas measuring sensors and flow meters) with a bubble detection system. Instead of directly measuring gas parameters with complex mechanical sensors, the system uses bubble generation and optical sensing to indirectly measure gas flow, achieving higher precision with simpler components
2Measurement precision
If traditional gas measuring sensors are used, then gas leak detection is possible, but measurement precision deteriorates for small flow rates due to gas compressibility
Solution Approach 1:
The patent changes the measurement parameter from direct gas flow measurement to bubble frequency and size measurement. By introducing gas into liquid, the system transforms the measurement task into counting and analyzing bubble characteristics, which are easier to measure precisely even for small gas volumes, thereby improving detection accuracy for low flow rates
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 approach significantly improves the accuracy of gas leak detection by quantifying bubble size and frequency, enabling precise measurement of gas flow and volume.
Implementation Method 1
the exhaust port being implanted in the liquid of the liquid storage tank so that the leaking gas being introduced into the liquid of the liquid storage tank to generate gas bubbles
Implementation Method 2
a monitoring part is formed on a tank wall of the liquid storage tank, and the monitoring part is provided with a bubble sensing component, and the height of the monitoring part from the liquid surface is smaller than the height of the exhaust port from the liquid surface
Data Source
AI summary
The present invention provides a gas leakage sensing device comprising a gas conduit, a liquid storage tank and a bubble sensing component. The gas conduit guides leaking gas from industrial equipment into a liquid in the liquid storage tank through an exhaust port and generates bubbles. A monitoring part with a bubble sensing component is formed on the tank wall of the liquid storage tank, the height of the monitoring part from the liquid surface is less than the height of the exhaust port from the liquid surface. By sensing the size, amount of generated bubbles, and floating frequency of the bubbles generated in the liquid, the flow rate and volume of the leaking gas are obtained to improve the accuracy of sensing the leaking gas.