Help! ! ! The distance between the cabinet rooms in the chemical plant area does not meet the requirements; an explosion-proof design is necessary. What precautions should be taken?
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If the cabinet room does not meet the required safety distance from the equipment area and it is not possible to relocate it, what issues need to be considered if the cabinet room is to be made explosion-proof?
Is it a problem with the fire separation distance not meeting the standards, or an issue with the explosion-proof area? Regarding fire separation distances, firewalls should be constructed in accordance with standard 50160. If it’s a problem related to explosive areas, then explosion isolation isn’t possible; in such cases, positive pressure ventilation must be used instead. Perhaps you are asking about blast resistance? Well, that has little to do with whether a cabinet can be installed or not~
1. In which area. A distance that does not meet the blast resistance requirements also does not solve the problem. 2. The relocation and renovation shall be carried out in accordance with the design standards for blast-resistant rooms. In short, handle it all at once.
Ahah, the issue raised by this poster seems to be related to improvements in blast resistance design; it doesn’t appear to be a problem with explosion isolation! The issue of blast resistance in control rooms or cabinet areas has been a safety hazard correction item identified by emergency management departments over the past 19 years. The standards currently in use are mainly \"SHT 3006-2012 Code for Design of Petrochemical Control Rooms\" and \"GB 50779-2012 Code for Explosion Protection Design of Petrochemical Control Rooms\". The issues involved are highly specialized, and responses from professionals from specialized explosion protection design companies are required. What we need to focus on is the on-site renovation work, namely how to ensure the proper protection and monitoring of the equipment in the cabinet rooms!
In accordance with the requirements of the \"Three-Year Action Plan for Special Rectification of Hazardous Chemicals Safety\" (Annex 3 to Document No. Anwei [2020] 3): 1. The control rooms and shift change rooms of production facilities that handle explosives must not be located within the facility area; those that are already in use must be rectified by the end of 2020； 2. Control rooms and shift change rooms for production units involving Class A and B fire hazards should, in principle, not be located within the unit area. If it is necessary to locate them there, anti-explosion design, construction, and reinforcement must be carried out in accordance with the \"Code for Anti-explosion Design of Petrochemical Control Rooms\" (GB50779-2012), and this must be completed by the end of 2020. Based on the layout of the control room, its design characteristics, and the standard GB/T 37243-2019 \"Methods for Determining the External Safety Protection Distances for Hazardous Chemicals Production Units and Storage Facilities\", a quantitative approach is used to assess the explosion risk. Depending on the results of this assessment, it is determined whether blast resistance design is necessary for the control room; if such design is required, it must be carried out in accordance with the standard GB 50779-2012 \"Code for Blast Resistance Design of Petrochemical Control Rooms\".
The workload associated with relocation is too great; it’s more practical to focus on blast resistance instead
It’s for blast resistance; I was wrong above