Installation location of the methanol leak detection probe
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What are the installation locations and layout requirements for methanol leak detection probes? Some time ago, the Safety Supervision Bureau conducted an inspection and stated that a detection probe at a distance of 1 meter from the ground did not meet the requirements. I welcome everyone’s feedback.
Methanol is heavier than air, so its sensor should be placed at a height of 0.3–0.6 meters above the ground. For details, refer to the \"Design Code for Detection and Alarm of Flammable and Toxic Gases in Petrochemical Industries\" (GB 50493-2009).
Thanks to the person above; I just classified methanol as a flammable liquid without checking the standards for toxic gases!
Methanol has moderate toxicity. According to the \"Design Code for Detection and Alarm of Flammable and Toxic Gases in Petrochemical Industries\", when a substance is both toxic and flammable, it is sufficient to install only toxic gas detectors, as the permissible concentration of toxicity is much lower than the lower explosive limit. Since methanol’s density is greater than that of air, gas detection probes should be installed at a height of 0.3–0.6 meters above the ground.