A kind of dispersed downcomer sieve plate column

Abstract

The invention discloses a sieve-plate tower for dispersing falling liquid. The sieve-plate tower comprises a cylindrical tower body, wherein a plurality of falling liquid dispersing sieve plates are arranged along the axial direction of the tower body, and falling liquid pipes are arranged below a whole sieve plate plane in a dispersed manner to replace bow-shaped falling liquid pipes and liquid receiving areas at two sides of a conventional sieve-plate tower, so that a concentrated liquid falling or liquid receiving manner of the conventional sieve-plate tower is changed, the effective mass transfer area of the sieve plates is effectively improved, and the gas and liquid pass capacity is increased; and liquid on the sieve plates uniformly falls to a lower layer of the sieve plates by passing through the falling liquid pipes dispersed below the plate plane, so that other solid fillers or catalysts and the like for assisting mass transfer or reaction can be filled between two sieve plates conveniently to ensure that the space between very two sieve plates can be efficiently used and the space of the whole tower body can give full play to mass transfer and separation effects.

Description

technical field [0001] The invention belongs to the technical field of mass transfer and separation, and relates to a dispersed downcomer sieve plate tower. Background technique [0002] In mass transfer equipment such as rectification, absorption, and extraction, sieve plates have been widely used due to their simple structure and low cost. Disadvantages such as ineffective use of space limit the application of sieve tray towers in some fields. In order to overcome the shortcomings of sieve trays and make them better used in industrial processes, a large number of improved sieve trays have appeared. Usually, sieve tray towers have been reduced from Sieve plate resistance and liquid foam entrainment to change the gas-liquid contact state, improve the gas-liquid handling capacity of the sieve plate, such as multi-downcomer tray (MD tray), guide sieve plate and new vertical sieve plate, etc., These improved sieve plates have improved in terms of processing flux and sieve plat...

AI Technical Summary

Problems solved by technology

[0002] In mass transfer equipment such as rectification, absorption, extraction, etc., sieve plates have been widely used due to their simple structure and low cost. Disadvantages such as ineffective use of space limit the application of sieve tray towers in some fields. In order to overcome the shortcomings of sieve trays and make them better used in industrial processes, a large number of improved sieve trays have appeared. Usually, sieve tray towers have been reduced from The sieve plate resistance and liquid foam entrainment can be used to change the gas-liquid contact state and improve the sieve plate’s gas-liquid handling capacity, such as multi-downcomer trays (MD trays), guided sieve trays and new vertical sieve trays, etc. These improved sieve plates have improved in terms of processing throughput and sieve plate efficiency. However, the liquid layer space (leaching area) between the sieve plates is basically in the blind area of ​​mass transfer. How to effectively use the space between the sieve plates space and effectively play its role in mass transfer is often overlooked

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