Halogenated Siloxane Sensor Line for Chlorine Leak Detection
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Solution Overview
Problem
Existing sensor lines using ethylene vinyl acetate (EVA) for leak detection in chlorine-containing installations face delays due to reactions between acetate molecules and chlorine gas, leading to reduced detection sensitivity and longer response times.
Innovation Solution
A sensor line with a carrier pipe coated with a halogenated, preferably chlorinated, siloxane rubber layer that minimizes chlorine absorption, enhancing detection sensitivity and response time by allowing quicker diffusion and reduced gas loss during transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ethylene vinyl acetate (EVA) is used as the permeable layer, then the sensor line can detect leaked substances, but the acetate molecules react with chlorine gas causing delayed arrival at the sensor
Solution Approach 1:
The patent changes the chemical composition parameter of the permeable layer from EVA to halogenated siloxane rubber. This material substitution eliminates the harmful reaction between acetate molecules and chlorine gas, allowing chlorine to diffuse through the layer without chemical interaction, thereby reducing response time while maintaining detection sensitivity
Solution Approach 2:
The patent uses a composite structure consisting of a carrier pipe with a halogenated siloxane rubber permeable layer. This composite material design provides both the necessary permeability for chlorine diffusion and chemical inertness toward chlorine, resolving the contradiction between detection capability and response speed
2Reliability
If non-halogenated siloxane rubber is used, then the material is chemically stable, but it absorbs chlorine gas reducing detection sensitivity and increasing response time
Solution Approach 1:
The patent modifies the chemical structure of siloxane rubber by introducing halogen atoms (specifically chlorine) into the polymer chain. This parameter change transforms the material from chlorine-absorbing to chlorine-permeable, eliminating the harmful absorption effect while maintaining the chemical stability and elastic properties of the siloxane backbone
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 use of halogenated siloxane rubber in the sensor line significantly increases detection sensitivity and reduces response time by minimizing chlorine absorption, ensuring faster diffusion and reduced losses during transport, thereby improving leak detection efficiency in chlorine-containing installations.
Implementation Method 1
gaseous or liquid chlorine escaping into the area surrounding the sensor line is no longer absorbed, or absorbed only in significantly reduced amounts, in the siloxane rubber, with the result that, on the one hand, the diffusion rate is increased
Implementation Method 2
a permeable layer through which a substance can diffuse, which escapes from a leak in an installation
Data Source
AI summary
A sensor line for monitoring for and locating leaks in an installation, in which chlorine escapes to the area surrounding the installation if there is a leak. The sensor line contains a carrier pipe. The wall of the carrier pipe has openings which are closed by at least one layer which is permeable for chlorine and contains a halogen-containing siloxane rubber.