SU1494911A1 - Heat-mass-exchange contact apparatus - Google Patents

Abstract

The invention relates to the instrumentation of the ejection columns and can be used in the food and a variety of related industries. The purpose of the invention is to increase the separation capacity due to the redistribution of the fluid load at the inlet. Heat and mass transfer contact apparatus includes a perforated plateau 2 and a segment overflow device with partitions 4 made in the form of sections of cylindrical surfaces bounded by the wall of the housing 5 and a vertical plate 6 installed with a gap to the plate 1. Partitions 4 are mounted on the plate 1 eccentrically relative to one another and to the wall of the casing 5. At the same time, the radius of curvature of the partitions increases from the center to the periphery. 2 Il.

Description

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The invention relates to the field of instrumentation of the ejection columns and can be used in the alcohol, food and some other related industries.

The purpose of the invention is to increase the separation capacity due to the redistribution of the fluid load at the inlet.

The figo shows the apparatus, a longitudinal section; fig 2 is the same as the plan.

Heat and mass transfer contact apparatus includes a plate 1 with a horizontal contact perforated plateau 2 and a segment overflow device 3 with vertical partitions 4 made in the form of sections of cylindrical surfaces bounded by a wall of a vertically installed cylindrical body 5 and a vertical plate 6 installed with a gap to the plate 1, Partitions 4 are installed on the plate 1 eccentrically with respect to one another and to the wall of the body 5. In this case, the radius of curvature of the partitions 4 increases from a cent ra to the periphery

The device works as follows:

The liquid phase from the overlying plate enters the overflow device 3 and, reflecting from the curvilinear surface of the wall of the housing 5, flows onto the plate 1 with partitions 4, the presence of which prevents intensive feeding of the central region of the entrance portion of the perforated plateau 2, Eccentric arrangement of the partitions 4, and also, an increase in the radius of their curvature from the center to the periphery leads to the rationality of the redistribution of fluid to the load and provides an active fluid flow to the side

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zones of perforated contact plateau 2, which aligns the residence time of the elementary volumes of the liquid phase in the bubbling area energy requirements and requirements for the purity of the final product After passing through the working part of the contact perforated plateau 2, the liquid phase is discharged into the overflow device and enters the underlying contact stage, and the vapor stream moves upward for further contact with the liquid.

Claims (1)

Invention Formula Heat and mass transfer contact apparatus mainly for the rectification of alcohols, containing a vertically installed cylindrical body, plates located in it with perforated contact plates and segment overflow devices with vertical partitions in the form of sections of cylindrical surfaces bounded by a wall of the body and a vertical plate segment, installed with a gap to the plate, different that, in order to increase the separation capacity due to the redistribution of the fluid load on the input ode, the partitions are mounted eccentrically on the plate one against the other and the wall of the body and have a radius of curvature increasing from the center to the periphery. ll hL Phie. one