Rotary vortex jetting tray

Abstract

This invention relates to a tray for mass transfer absorption columns and rectification columns in the chemical industry. The tray includes a radial jetting pipe or a jetting hood, a tray plate, and the like. Ascending gas enters the jetting pipe or the jetting hood through ascending and descending gas passages, and is then jetted from jetting holes in a high speed to generate a large amount of vortexes artificially; after liquid is pushed by the gas to rotate by nearly a round, the liquid enters a tray of the next layer through a fan-shaped overflow pipe. The tray overcomes a plurality of disadvantages of existing trays, greatly increases the contact time and area of gas and liquid phases by utilizing the vertex function, and greatly increases the tray efficiency and the operation flexibility. A heat transfer device can be additionally arranged on the tray. The tray is applicable to pressurized and vacuum absorption columns and various distillation columns.

Description

[0001] Technical field: [0002] Trays for mass transfer absorption towers and rectification towers in the chemical industry [0003] Background technique: [0004] At present, the functions of the mass transfer trays used in the chemical industry at home and abroad are all limited to the role of trays. Both must drill holes in the tray. During operation, it is required that the gas can rise smoothly from the hole, and the liquid cannot leak from the hole. Therefore produced a series of insurmountable disadvantages. For example, liquid leakage on the tray, difficult to increase the gas-liquid contact time and area, "back-mixing" of the liquid flow on the plate, liquid level drop, mist entrainment, low gas-liquid two-phase turbulence, low operating flexibility, and high operating conditions. More importantly, the mass transfer rate is limited to the low-speed mass transfer range dominated by "molecular diffusion", and it is difficult to improve the tray efficiency. However, ...

AI Technical Summary

Problems solved by technology

For example, liquid leakage on the tray, difficult to increase the gas-liquid contact time and area, "back-mixing" of the liquid flow on the plate, liquid level drop, mist entrainment, low gas-liquid two-phase turbulence, low operating flexibility, and high requirements for operating conditions, etc.

More importantly, the mass transfer rate is limited to the low-speed mass transfer range dominated by "molecular diffusion", and it is difficult to improve the tray efficiency.

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