Are there any requirements regarding the size of the sump pits for fire dikes in oil tank areas?

Where did this concept come from? I don’t have that concept.

The wells in the tank area are generally valve wells, right? They are used to drain wastewater and rainwater, as well as to provide isolation and protection

This post was last edited by lovelife1997 on 2018-10-27 at 11:18. The design of the oil depot doesn’t take into account automatic drainage of rainwater; instead, efforts are made to collect it, which is confusing. If there is a heavy downpour that lasts for a week, waterlogging will occur, which is really **annoying**.

That’s not the case. The sump pits in the tank area are designed to collect rainwater from within the fire dike; after that, the water can be discharged through valve wells and water seal wells. It’s important to have two sets of pipelines: one for discharging rainwater and another for discharging wastewater

The size of the pit depends on its intended use: whether it is meant to serve as a connection point at the end of the ditch to the pipeline crossing the dike, or whether a lifting valve or oil-blocking drain needs to be installed at that end, or whether it is intended to function as a water intake for the pump during the discharge of liquid in case of an accident in the tank area, etc. Each issue should be analyzed on a case-by-case basis; the design work in the drainage field needs to coordinate well with that in the storage and transportation field.

There doesn’t seem to be any specific requirements established for this. Sump pits are installed because the ditches in the tank area cannot directly pass through the fire dike to connect to the drainage system. The size of the sump can be determined based on the diameter and number of pipes connected to it (usually two pipes are used: one for connecting to the clean rainwater system, and the other for connecting to the sewage or wastewater system, or to a dedicated system for handling initial rainwater during emergencies). The spacing between the pipes also needs to take into account whether it is possible to install facilities such as valve chambers and water seal chambers outside the fire dike. We usually build structures with dimensions of 1m*1m*1m in depth; the pipes installed also have a burial depth of around 0.6m to 0.7m, which meets the requirements for pipe burial depth as specified by the water engineering standards.

There are no specific figures regarding the size of the sump; it mainly depends on the equipment chosen for installing the oil collector