Are there regulations specifying how high the cofferdam for acid and alkali storage tanks should be? Is it necessary to have a storage capacity that can hold the tanks?
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Are there regulations specifying how high the cofferdam for acid and alkali storage tanks should be? Is it necessary to have a storage capacity that can hold the tanks?
This type of cofferdam is installed to prevent leaks, and it is most advisable to determine a volume that allows for the maximum allowable leakage amount. It is best to set the cofferdam according to the maximum capacity of the storage tank. For reference.
If the leakage is to be collected using cofferdams, then the volume of the tank must be taken into account; if there is a collection tank, a structure 200-300 mm high will suffice
Are there any requirements for the distance between the cofferdam and the storage tank? After communicating with staff from a design institute, the response was that there are no specific requirements regarding the height and volume of the cofferdam, but generally it is designed in accordance with the requirements for fire dikes.
For acid storage tanks or alkali storage tanks, first determine whether the medium is flammable or combustible; logically, it should not be, and only in that case can it be said that the design of the dike height takes into account only leakage prevention (the maximum amount of leakage) and not fire protection (fire dikes). It is recommended to study GB50160-2008 (2018 edition).
The volume of the acid and alkali storage tanks must also be taken into account, as well as the corrosiveness, toxicity, and volatility of the medium...
Section 4.4.8 of GB50984 provides detailed regulations