Construction Of Chemical Plant Tower Equipment

A column is a device used to perform physical processes such as separation or absorption, and to change the composition of complex gas or liquid mixtures. Also known as "tower equipment". The ratio of its height to its diameter is large, and certain accessories are arranged inside and outside the tower. The internals are used to make the gas and liquid, gas and solid, liquid and liquid or liquid and solid in close contact in the material, and the surface is constantly updated to complete the process of mass transfer (generally accompanied by heat transfer).

The tower is a process equipment with a cylindrical welded structure, which consists of a cylinder, a head (or a cover) and a support. It is a non-standard equipment specially designed and manufactured for a certain production process requirement. The tower is a vertical equipment used for chemical unit operations such as distillation, purification, absorption, rectification, etc. It is widely used for mass transfer and heat transfer between gas-liquid and liquid-liquid phase. According to the structure of the column internals, the column can be divided into a plate column and a packed column. If the inside of the container only holds materials without chemical reactions and other physical and chemical processes, there is no facility or only a simple auxiliary structure, which is also called a tank. Containers are divided into vertical (the axis is vertical) and horizontal (the axis is horizontal) according to the type. Most of the towers are pressure vessels.

Equipment for the transfer of substances between gas phase and liquid phase or liquid phase and liquid phase. According to the structure, it is divided into two categories: plate tower and packed tower. There are a certain number of trays in the tray tower, and the gas is in contact with the liquid layer on the tray in the form of bubbling or spraying for material transfer. The packing tower is equipped with a certain height of packing, the liquid flows from top to bottom along the packing, and the gas is in countercurrent contact with the liquid film from bottom to top for material transfer. Often used in distillation, water absorption, extraction and other operations.