SU1072879A2 - Apparatus for forming liquid film - Google Patents

Abstract

DEVICE FOR THE FORMATION OF A LIQUID FILM on the author. St. 827091,. That is, in order to intensify the process of mass transfer by reducing the pulsation of the hydraulic head and increasing the uniformity of the distribution of the liquid, it is equipped with a perforated partition installed vertically between the outer surface of the plate and eiksmi.

Description

The invention relates to devices for distributing the liquid phase of heat and mass exchangers, mainly (of a CONSTANT type with a regular nozzle and with vertical contact partitions, namely, devices for forming a liquid film, which reduces the pressure of the hydraulic head and perturbing the free surface of the layer (or gas). liquid phase on the uniform flow rate of the film outflow, as well as the spreading of the liquid in the film formation zone, and can be used in chemical ,, petrochemical and other industries.

According to the main auth. 827091, a device for forming a liquid film is known, which includes a base, a plate with holes and clips Cl attached to their upper edges.

However, in the known device, the effect of the pulsation of the hydraulic head and the disturbance of the free surface of the liquid layer (level) on the uniform flow rate of the film outflow, i.e. on the uniformity of its thickness, which leads to a violation of the uniformity of the linear density of the gas phase reflux, for example, at large linear intensities of the fluid flow and, accordingly, to a decrease in the efficiency of mass transfer.

The aim of the invention is to intensify the process of mass transfer by reducing the pulsations of the hydraulic head and increasing the uniformity of the distribution of the liquid.

This goal is achieved by the fact that the device for forming a liquid film is provided with a perforated partition installed vertically between the outer surface of the plate and the tabs.

Figure 1 shows a device for forming a liquid film, a general view, figure 2 shows a device for forming a liquid film, the tabs of which have the shape of a trapezoid,

general form; on fig.Z - the device with languages of the rounded form, a general view; figure 4 - section aa on fig.Z; on fig.Z - section bb in figure 1.

A device for forcing a film of liquid includes a base 1 and a plate 2 in which holes 3 are made. To the upper edges 4 of the holes 3, tongues 5 of various shapes are attached, for example triangular,

5 in the form of a trapezoid or rounded.

The device is provided with a perforated partition b, installed vertically between the outer surface of the plate 2 and tabs 5. In a multi-chamber apparatus with vertical contact partitions, the function of the perforated partition performs the upper part of the vertical contact partition, in particular the grid of the underlying cameo.

The device works as follows.

The fluid entering the device on the base 1, under the action of hydrostatic pressure flows out of the holes 3, directed to the perforated partition b, where the elimination of pulsations

hydraulic head. The tabs 5 then distribute the liquid and direct it downwards in the form of a uniform flowing film irrigating the contact elements.

The use of the invention allows to intensify the process of mass transfer by reducing the pulsations of the hydraulic head and increasing the uniformity of the distribution of the liquid.

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Claims (1)

DEVICE FOR FORMING A LIQUID FILM by ed. St. In 827091, characterized by the fact that, in order to intensify the process of mass transfer by reducing the pulsations of the hydraulic head and increasing the uniformity of the distribution of fluid, it is equipped with a perforated partition installed vertically between the outer surface of the plate and the tongues. FIG. 1