Selection of pressure relief manholes or rupture disks for atmospheric storage tanks
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Class A/B atmospheric storage tanks already have breather valves and nitrogen purge systems; now pressure relief manholes or rupture discs need to be added. In which regulations can I find the corresponding requirements? Thank you
Article 6.2.19 of GB50160; refer to the explanatory notes for the relevant provisions
The SH3007 storage and transportation tank area regulations also contain such requirements; section 5.1.5 stipulates that storage tanks whose protection systems use nitrogen or other inert gases must be equipped with emergency pressure relief devices
This post was last edited by wdh2010 on 2024-9-2 09:28
It was explained very clearly on the 4th floor. However, when selecting an accident relief device, one should choose only those with positive pressure discharge functionality; avoid devices that have a suction function (i.e., breathing vents). This is because if such suction functionality is present, in order to prevent external hazards from entering the equipment, a flame arrestor must also be added to the relief device. As a result, in the event of a fire, this will hinder pressure release inside the tank, which is counterproductive. Additionally, the accident mainly occurs in a fire scenario, where gas release is in one direction outward, so there is no need to consider an inhalation function.
Coincidentally, our company specializes in pressure relief manholes; feel free to contact us if you need help with selection. Jiangsu Puyuan Chemical Equipment Company, Chen Lingfeng 13951613960
To find out the requirements for adding pressure relief manholes or rupture discs to Class A and B atmospheric storage tanks, refer to the \"Safety Technical Inspection Regulations for Fixed Atmospheric Vessels\" (TSG R0004-2020), the \"Fire Protection Design Code for Petrochemical Enterprises\" (GB 50160-2008), and the \"Specifications for Safety Accessories of Storage Tanks\" (HG/T 20569-2013).
There are also many deflated tanks on site; how to protect them?
Breather valve or negative pressure protection rupture disc
The Safety Technical Inspection Regulations for Fixed Atmospheric Pressure Vessels (TSG R0004-2020) – it seems that such a standard does not exist. The TSG R0004-2009 regulations on the safety technical inspection of fixed pressure vessels have been replaced by the TSG 21-2016 Regulations on the Safety Technical Inspection of Fixed Pressure Vessels