Storage Tanks Roof Types

Fixed roof storage tanks are used when the quantities of crude oil are not that much.

Storage tanks roof types.

Atmospheric storage tank this type of tank operates from atmospheric pressure to 0 5 psi 0 034 bar. Floating roof storage tanks. Atmospheric storage tanks can be further broken down into open top storage tanks fixed roof tanks and floating roof storage tanks. From the very name you may understand that these tanks are designed with a roof that floats on top of the liquid.

The remaining two are widely used to store crude oil among other oil products. Dome roof tanks are meant for tanks having slightly higher storage pressure than that of atmosphere e g. Their choice depends on type of product to be stored fire potential of product and amount of product to be stored. Floating roof tanks are broadly divided into external floating roof tanks usually called floating roof tanks.

Lifter roof tanks have a telescoping roof that fits loosely around the outside of the main tank wall. Storage tanks are often cylindrical and are placed at a 90 degree angle from the ground. Open top tanks are better suited for storing water. Let s have a quick look at what are the two most common types of storage tanks.

External floating roof tank double deck type an external floating roof tank is a storage tank commonly used to store large quantities of petroleum products such as crude oil or condensate. As the name suggests the floating roof tank consists of a floating roof which falls or rises according to the level of oil in the tank. See our storage tanks books section. Cone roof tank this low pressure fixed roof tank and is used.

To prevent the build up of vapor inside the tank the floating roof in this type of tanks has been incorporated as a safety feature. Their function may be receiving settling treating dehydrating washing desalinating storing or exporting. There are many types of storage tanks like internal external floating roof tank vertical storage tank fixed roof tank. Atmospheric tanks are operated at or near the pressure found in the atmosphere.

In this article we will discuss the most common type of vessels found in process facilities. Cone roof tank this type of tank is a low pressure storage tank with a fixed cone shaped roof closed floating roof tank this has an internal floating roof but eliminates natural ventilation of the tank vapor space. Types of industrial oil storage tanks floating roof tank. The two most common types of variable vapor space tanks are lifter roof tanks and flexible diaphragm tanks.

This floating roof moves up and down as the level of liquid changes like filling or emptying in the tank. Different storage tank type has different applications. Tanks are usually described according to their function or their construction. Fr tanks and internal floating roof types ifr tanks.