Evaporator And Heat Exchanger Equipment

1. Storage tanks are closed containers used to store liquids, gases, or solids. They are typically vertical or horizontal cylindrical structures, and mass transfer or chemical reactions generally do not occur inside them.
Key Features:
Single Function: Focused on storage, not involving substance separation or conversion.
Simple Structure: Mainly composed of tank body, end caps, inlet/outlet pipes, and support structure.
Uniform Internal Space: No complex internal components (some fixed-roof tanks may have internal support columns).
Common Types:
Fixed-roof Tanks: The most common type, suitable for non-volatile liquids.
Floating Roof Tanks: Divided into internal and external floating roofs, reducing the evaporation of volatile substances.
Horizontal Tanks: Small footprint, suitable for small to medium capacity liquid storage.
Spherical Tanks: High pressure resistance, used for high-pressure gases or liquefied gases.
Cryogenic Tanks: Used for storing extremely low-temperature substances such as liquefied natural gas.
2. Columns are long, cylindrical devices with special internal structures (trays or packing) used for substance separation, mass transfer, or chemical reactions. Utilizes mass and heat transfer between different phases (gas-liquid or liquid-liquid) to achieve specific processes.
Main Features:
Complex Functions: Used for separating mixtures, absorbing gases, and conducting chemical reactions.
Rich Internal Structure: Contains complex internal components such as trays, packing, and distributors.