Active centrifugal gas-liquid separation device

Abstract

The invention is applied in the industries of medicine, air compression, natural gas, synthetic ammonia, oil refining, coking and the like, and relates to a gas-liquid separation device. The device comprises a shell, an air inlet pipe and an exhaust pipe; a drum driven to rotate by a power device is arranged in the shell; the wall of the drum is provided with air holes; a partition plate is arranged in the drum to partition the drum into an air inlet end and an exhaust end which are respectively communicated with the air inlet pipe and the exhaust pipe; the air inlet pipe is communicated with the exhaust pipe through the air inlet end of the drum, the air holes in the wall of the drum, an air passage and the exhaust end of the drum; and the shell is provided with a drain pipe. Through the device, the separation efficiency of liquid particles with the diameters of over 0.1 micron reaches over 99.5 percent; and the device is large in treated gas quantity and suitable for wet gas with high liquid content, does not require circulation of a large quantity of washing absorption liquid, does not require a high-voltage electrostatic system, has good adaptability to the physical properties of the liquid, has certain capability of separating dry gas components with different densities, and is small in volume, light in weight, small in occupied space and low in manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of gas and liquid separation and recovery, and relates to a gas-liquid separation device. Background technique [0002] Gas-liquid separation refers to a process of separating dry gas and liquid particles in gas-liquid two-phase mixed wet gas containing suspended tiny liquid particles. It is widely used in medicine, air compression, natural gas supply, synthetic ammonia, oil refining, coking, etc. industry. The suspended tiny liquid particles contained in the wet gas are generally distinguished by the size of the liquid particle diameter. Usually, when the liquid particle diameter is less than 10 μm, it is called "fog", and when the liquid particle diameter is within 10 μm to 1000 μm, it is called "fog". ", greater than 1000μm, it is called a "droplet". [0003] The formation mechanisms of "fog" and "foam" in the airflow usually include: mechanical action, steam condensation, and chemical reaction. The d...

AI Technical Summary

Problems solved by technology

Disadvantages: low separation efficiency, bulky equipment, occupying a lot of space, when the diameter of liquid particles in wet gas is small, the separation efficiency drops sharply

2) If two or more particles are thrown into one hole at the same time, bridging phenomenon will also occur

Disadvantages: the processing gas volume is small, the applicable gas liquid content is also small, it is very easy to block, the resistance is high, and it is not suitable for viscous liquid or medium containing solid particle impurities

Disadvantages: large flow of washing liquid, complex system, high energy consumption and high maintenance costs

Disadvantages: high-voltage electrostatic device is required, the system is complex, high energy consumption, high cost, high maintenance cost, and there is a strict limit on the oxygen content of the mixed gas for separating flammable liquid particles, otherwise there is a risk of explosion

However, the separation efficiency of the improved centrifugal gas-liquid separator is still low for small-diameter liquid particles, especially for the "mist" with a liquid particle diameter of less than 3 μm.

[0019] The disadvantages of the above-mentioned technology are: for the separation efficiency of the "mist" with a small liquid particle diameter, the filter body gas-liquid separator has a small gas volume, is easy to block, has high resistance, and the applicable gas has a low liquid content. It is not suitable for viscous liquids or media containing solid particle impurities; the washing liquid flow rate of the washing absorption gas-liquid separator is large, the system is complicated, the energy consumption is high, and the maintenance cost is high; Complicated, high energy consumption, high cost, high maintenance cost, and there is a risk of explosion when dealing with the mixture of combustible liquid particles containing oxygen

However, several other types of gas-liquid separators have very low separation efficiency for the "mist" with a small diameter of liquid particles.

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