What are the regulations regarding the regular opening and closing of the central drain pipe valve in crude oil floating roof tanks?
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What are the regulations regarding the regular opening and closing of the central drain pipe valve in crude oil floating roof tanks? Please provide a more detailed answer
1. The central drain pipe is opened only during rain and closed after it stops. 2. During the monthly inspections of the tank top and tank accessories, open the drainage valve to check whether there is oil in the pipe; the presence of oil indicates a leak in the drainage pipe. At the same time, check whether there are any foreign objects on the floating disc. 3. During heavy rain, the personnel on duty should go to the top of the tank and check whether the drainage outlets are functioning properly, to prevent foreign objects from blocking them and causing the floating disk to tilt.
Is it unsafe for people to go on the tank top during heavy rain, and what measures are in place to avoid this risk?
Our workshop has a rule stating that operations on tanks should not be carried out during thunderstorms to avoid accidental injuries.
Tank operations are not allowed on rainy days.