What are the design requirements for the floating disk of internal floating roof tanks, and what is the situation regarding nitrogen sealing?
Thread Content
1. Seeking guidance on the design requirements for internal floating roof floats, specifically regarding the material and type of float. 2. Are nitrogen seals required for internal floating roof methanol tanks and gasoline tanks? Are there any explicit requirements? Please, experts, help me out! I’m waiting online!
Personal experience: The material of internal floating disks is usually aluminum alloy; stainless steel should be used if corrosion is a possibility. Our methanol storage tanks are equipped with nitrogen sealing and do not use internal floating roofs.
Personally, I think adding a nitrogen seal would make things much safer; it’s best to do that before putting the system into use. It’s too troublesome to try to make changes after feeding has started
To answer question one, regarding the design requirements, materials, and types of internal floating disks that you need, please contact me; I can provide you with the upcoming \"Technical Specifications for Internal Floating Disk Systems in Prefabricated Storage Tanks in the Petrochemical Industry\". For contact information, check my profile or message me privately.
Answering question two: The functions of the floating disk and the nitrogen seal are different. The purpose of the floating disk is to prevent the liquid from evaporating, while the main function of the nitrogen seal is to prevent the liquid medium from oxidizing; their roles are not identical. There is no explicit requirement; generally, gasoline does not need to be sealed with nitrogen.
The function of a nitrogen seal is different from that of a floating disk; it is relatively easier to install a nitrogen seal, and it has little impact during the capping process.
Does your company’s methanol tank use a nitrogen-sealed gas recovery system? It’s likely that the environmental impact assessment won’t be approved without vapor recovery; are the operating costs associated with vapor recovery quite high? Compared to the internal floating disk.