Regarding the placement of on-site oxygen detectors
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In accordance with the \"Design Standards for Detection and Alarm of Flammable and Toxic Gases in Petrochemical Industries\", changes in the oxygen concentration in the environment can occur during the production process, leading to conditions of low or high oxygen levels. Oxygen detectors should be installed in areas where people are present. Now, many factories require oxygen probes to be installed simultaneously whenever there are flammable and toxic detectors present. Is this reasonable, or is it excessive?
This approach is basically reasonable. Because in areas where there may be leaks of flammable and toxic gases, changes in oxygen concentration are equally important; too low a concentration can lead to asphyxiation, while too high a concentration increases the risk of fire and explosion. Installing oxygen probes simultaneously enables more comprehensive monitoring of environmental safety conditions, which is essential for ensuring both the safety of personnel and the safety of production processes. However, the specific settings need to be evaluated based on actual conditions to avoid unnecessary waste of resources. .
Not really; it needs to be set according to the actual situation. Personally, I believe that oxygen detectors are not necessary in open outdoor areas. However, in enclosed or semi-enclosed spaces where there is a risk of leakage of flammable, toxic, or inert gases, it is reasonable to install oxygen detectors. The installation height of oxygen detectors is generally between 1.5 m and 2.0 m above the floor or floor slab.
Thank you for the reply; I agree with your view
Oxygen concentration detectors are required mainly in enclosed spaces (with doors and mechanical ventilation) where nitrogen is used. In areas equipped with detectors for flammable and toxic substances, where there are no nitrogen usage points, it is not necessary to install additional oxygen detectors. Furthermore, an oxygen detector (with its own display and audible/visual alarm) is installed inside the room, and an additional audible/visual alarm needs to be installed outside the room.
It is clearly stated in GB/T 50493