Combined truncated cone type gas-liquid redistributor

Abstract

The invention relates to a combined truncated cone type gas-liquid redistributor. The combined truncated cone type gas-liquid redistributor comprises a conical wall and a connecting bottom plate. Theconnecting bottom plate is fixedly arranged at the bottom of the conical wall, and is provided with a plurality of strip-shaped folding plates; the strip-shaped folding plates are of inverted-V structures; a plurality of air holes are formed at equal intervals in both sides of each strip-shaped folding plate; a stop plate is fixedly arranged on the lateral side of the strip-shaped folding plate above each air hole, and an angle is formed between each stop plate and the lateral side of the corresponding strip-shaped folding plate; the angles between the stop plates and the lateral sides of thestrip-shaped folding plates are proportional to the distances from the stop plates to the center of the connecting bottom plate. The combined truncated cone type gas-liquid redistributor has the advantages that the strip-shaped folding plates and the stop plates are adopted to achieve a good distribution effect of washing liquid, and accordingly, the area and time of contact between gases and liquid can be increased and prolonged; the included angles between the stop plates and the lateral sides of the strip-shaped folding plates are proportional to the distances from the stop plates to the center of the connecting bottom plate, so that the differences among the flowing speeds of gases from each air hole are small, the gas distribution effect is good, poor gas-liquid distribution in a packing tower is reduced, and the gas-liquid mass transfer efficiency is improved.

Description

technical field [0001] The invention relates to a gas-liquid redistributor, in particular to a combined truncated cone type gas-liquid redistributor. Background technique [0002] The packed tower is a continuous gas-liquid mass transfer equipment. The gas is sent from the bottom of the tower, and then flows countercurrently with the liquid through the gaps in the packing layer. Under normal operation, the gas phase is the continuous phase and the liquid phase is the dispersed phase. The effect of phase mass transfer should ensure the uniform distribution of gas and liquid on any cross-section, but in the actual work process, when the liquid flows down along the packing layer, it will tend to concentrate on the tower wall, forming a wall flow effect, resulting in The gas-liquid two-phase distribution in the packing layer is uneven, thereby reducing the mass transfer efficiency. Therefore, it is necessary to install a gas-liquid distribution device in the packing layer to eli...

AI Technical Summary

Problems solved by technology

[0002] The packed tower is a continuous gas-liquid mass transfer equipment. The gas is sent from the bottom of the tower, and then flows countercurrently with the liquid through the gaps in the packing layer. Under normal operation, the gas phase is the continuous phase and the liquid phase is the dispersed phase. The effect of phase mass transfer should ensure the uniform distribution of gas and liquid on any cross-section, but in the actual work process, when the liquid flows down along the packing layer, it will tend to concentrate on the tower wall, forming a wall flow effect, resulting in The gas-liquid two-phase distribution in the packing layer is uneven, thereby reducing the mass transfer efficiency. Therefore, it is necessary to install a gas-liquid distribution device in the packing layer to eliminate the bad distribution of liquid or gas in the packing tower and achieve uniform distribution of gas and liquid.

[0003] Since the gas is not uniformly distributed in the cross-section of the tower body during the rising process, the gas flow velocity near the center of the tower body is greater, and the gas flow velocity is lower near the edge of the tower body, so the gas flow through the The washing liquid in the packing layer will flow obliquely towards the inner wall of the tower body, and finally attach to the inside of the tower body and flow downward to form a "wall flow", thereby reducing the efficiency of the packed tower

Images