Gas-liquid cyclone separation pipe and gas-liquid cyclone separation device with same

Abstract

The invention provides a gas-liquid cyclone separation pipe and a gas-liquid cyclone separation device with the same. The gas-liquid cyclone separation pipe comprises an inner sleeve, a U-shaped pipe, an outer sleeve and a gas inlet pipe. A first air outlet is formed in the upper end of the inner sleeve, and a first air inlet is formed in the lower end; two free ends of the U-shaped pipe are second air inlets, a second air outlet is formed in one end, opposite to the free ends, of the U-shaped pipe, and the second air outlet is communicated with the first air inlet; the outer sleeve comprises a first cylinder body and a second cylinder body, the first cylinder body is cylindrical, the second cylinder body is funnel-shaped, the lower end of the first cylinder body is communicated with the upper end of the second cylinder body, a third air inlet is formed in the side face of the first cylinder body, and a mounting opening matched with the inner sleeve is formed in the upper end of the first cylinder body; the inner sleeve is fixed in the mounting opening, the first air inlet is located in the outer sleeve, and a liquid outlet is formed in the lower end of the second barrel; one end of the air inlet pipe communicates with the third air inlet. The gas-liquid cyclone separation pipe can effectively improve the gas-liquid separation effect.

Description

technical field [0001] The invention relates to the technical field of electroplating waste gas treatment, in particular to a gas-liquid cyclone separation pipe and a gas-liquid cyclone separation device having the same. Background technique [0002] In the pretreatment process of electroplating waste gas, after the waste gas mixed with chromic acid mist enters the outer sleeve of the gas-liquid cyclone separation tube, it will perform a spiral sinking movement, and after sinking to the funnel of the outer sleeve, it will be squeezed and thus Start to do a spiral upward movement, in which the downdraft makes an outer spiral movement, and the ascending airflow makes an inner spiral movement. Larger chromic acid droplets in the spiral sinking airflow will be thrown to the wall of the outer sleeve by centrifugal force and flow out of the liquid outlet along the wall, and the remaining gas will enter the air inlet of the inner sleeve with the updraft and was discharged. [000...

AI Technical Summary

Problems solved by technology

The short-circuit flow will bring the smaller liquid droplets in the downdraft that have not been thrown to the wall surface into the updraft and discharge in advance, thus affecting the effect of gas-liquid separation

[0004] In addition, the sinking swirling airflow easily collides with the outer wall of the inner sleeve, causing the droplets in it to be smashed, and the smashed droplets will splash, and some of the droplets will splash into the short-circuit flow or the updraft and be taken together. discharge, and after the large droplets are smashed into small droplets, it is not easy to be thrown to the inner wall, thus reducing the efficiency of the gas-liquid separator

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