Classification of fire hazards related to the production of chlorine absorption units
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I would like to ask the experts: The chlorine gas produced by the electrolyzer is absorbed using sodium hydroxide solution in another workshop. Should the fire hazard classification for this absorption workshop be classified as Category B based on chlorine gas, or as Category D? The chlorine concentration in the pipes is less than 5%.
Chlorine itself is not flammable, but it can support combustion. Sodium hydroxide solution is also not flammable. The main hazards in the chlorine absorption workshop stem from the toxicity and corrosiveness of chlorine, rather than fire risks. Therefore, the fire hazard classification of this absorption plant should not be based on the flammability of chlorine, but rather on the actual operating and storage conditions. Since the chlorine content in the pipeline is less than 5%, and chlorine is absorbed by the sodium hydroxide solution throughout the operation, the fire hazard classification of the facility is relatively low. It is usually not classified as Category B or Category D, and is more likely to be regarded as a general industrial environmental risk. Specific classifications may require reference to more detailed safety assessments and local regulatory standards. .
Thank you, teacher. We now consider calculating the on-site chlorine level in the workshop based on the amount of chlorine in the pipeline, ensuring that it does not exceed the maximum allowable level as specified in Table 2 of Appendix 3.1.2 of the building codes; in such cases it is not classified as Category B.
Your considerations are reasonable. Calculations are carried out in accordance with Table 2 of Appendix 312 of the building codes, to ensure that the online chlorine level does not exceed the maximum safe level specified by standards; this helps to avoid classifying the workshop as having a higher fire hazard rating. This approach helps to properly assess risks and take appropriate safety measures. At the same time, keeping the chlorine level below safe thresholds also helps to ensure a safe working environment in the workshop and the health of employees. Ensure that all operations comply with local industrial safety regulations and laws and regulations to prevent any potential safety incidents. .