In the chemical industry, the use of ejectors is quite extensive, and their type and application depend on the specific process needs and working medium. Here are some of the types of ejectors that may be used in the chemical industry and their brief descriptions:
Water vapor ejector
Working medium: water vapor
Features: It can directly exhaust the atmosphere, fast starting, small footprint, wide working pressure range, large pumping capacity, and can extract dust, corrosive and flammable and explosive gases.
Application: It is more economical to use surplus or waste steam, but the disadvantage is high civil investment and high cooling water consumption.
Air Injectors
Working medium: compressed air or steam
Features: The jet action of compressed air is used to transfer energy and mass, and it has the effect of transportation and mixing.
Application: Widely used in processes that require air or steam as a power source.
Liquid Injectors
Working medium: all kinds of liquids, such as water, oil, solvents, etc
Features: Negative pressure is generated by the high-speed flow of liquids for suctioning, mixing or conveying liquids.
Application: In chemical production, liquid ejectors are often used in processes such as liquid transportation, mixing, and reaction.
Gas-liquid injectors
Working medium: gas and liquid
Features: Liquids are sucked, mixed or transported by the jet of gas.
Application: In chemical production, gas-liquid injectors are often used in gas-liquid mixing, gas absorption, liquid evaporation and other processes.
Gas-solid injectors
Working medium: gas and solid
Features: Solid particles are transported or mixed by the jet action of gas.
Application: In chemical production, gas-solid ejectors are often used in the transportation, drying, and classification of solid particles.
Oil diffusion pumps and oil booster pumps
Working medium: oil
Features: The main equipment used to obtain high vacuum or ultra-high vacuum.
Applications: In chemical production, these pumps are often used in processes that require a high vacuum environment, such as distillation, rectification, extraction, etc.
In general, there are many different types of ejectors used in the chemical industry, depending on the process requirements, operating media and operating conditions. These injectors play an important role in chemical production such as conveying, mixing, reacting, evaporating, absorption, drying, etc.
