SU1643030A1 - Gas flow distribution apparatuses - Google Patents

Abstract

The invention relates to a constructive implementation of devices for distributing a gas flow over the cross section of an apparatus and can be used in mass transfer apparatus, separation and filtration apparatus, in particular in absorbers for drying and cleaning gas separators or gas filters, and reduces the metal consumption by reducing the dimensions of the device. and improve the efficiency of the device by uniformly distributing the gas flow and reducing the secondary liquid entrainment. The device contains a shell 1, the mouth The inside of the housing 2 is eccentric with respect to its axis against the gas inlet nozzle 3 and the partition 5 connected to the housing. The shell is mounted on a perforated base 6 In the shell, channels 9 are provided for the gas flow.

Description

1

pipe 3 into a narrowing gap between body 2 and shell 1, from where it is taken out through channels 9 to the center of the shell. Mechanical particles and free liquid are flared off the longitudinal partition and taken through the gaps 7. The dynamic gas pressure is maximum at the gas inlet nozzle and on the side opposite to the JToro nozzle location. Moreover, the dynamic pressure is pre-equalized by a decreasing gap between the housing and the shell and the variable cross-section of the channels. 3 hp ff, 4 sludge,

The invention relates to a constructive implementation of devices for distributing gas (vapor) flow over the cross section of the apparatus and can be used in mass transfer, separation, filtration apparatus, in particular in gas drying and scavenging absorbers, separators or gas filters.

The purpose of the invention is to reduce metal consumption by reducing the size of the device and increasing the efficiency of the device by equalizing the distribution of the gas stream by leveling its speeds and reducing secondary entrainment.

Fig.1 schematically shows an apparatus with a gas distribution device, a longitudinal section; FIG. 2 is a section A-A in FIG. one; Fig. 3 shows an embodiment of channels for the passage of gas; Fig. 4 shows an embodiment of a shell having a teardrop shape.

The gas distribution device contains a shell 1, mounted inside the housing 2 of the apparatus eccentrically about its axis against the nozzle 3 of the gas inlet with a gap of 4 to it.

The shell 1 is connected to the housing 2 by a partition 5 located above the nozzle 3 of the gas inlet.

The device is equipped with a perforated base 6, on which the shell 1 is mounted, attached to the housing 2 and forming a gap 7 with it. The base can be made of sheets 8, installed with a gap to one another and to the housing 2 and attached to the housing, In the shell I are made gas passage channels 9 having a variable cross-section decreasing to the axis of the gas inlet nozzle 3. The channels for the passage of gas can be formed by a gap 10 between the base b and the shell 1, decreasing to the axis of the gas inlet nozzle 3. To reduce the hydraulic resistance, the total area of the channels is chosen less than the transverse area of the shell and more than the cross-section area of the inlet 3.

gas, Shell 1 at the gas inlet nozzle is divided by a longitudinal partition 11, the ends of which are led through opposite channels located

at the gas inlet pipe, and flanged in the direction of the latter. The shell can be made drop-shaped with the orientation of the sharp edge forming in the direction of the nozzle 3 of the gas inlet. At the outlet, the shell may be additionally equipped with a mesh screen 12.

The device works as follows.

Gas is supplied through the pipe 3 to a narrowing gap between the housing 2 and the shell 1, which is bounded below by the base 6 and the partition 5 from above, from where it is taken through the channels 9 to the center of the shell. Mechanical particles and free fluid are removed.

by flanging the longitudinal partition 11 and due to the force of gravity are taken through the gaps 7 between the sheets 8. To ensure uniform gas flow, the cross section of the channels 9 decreases to the axis of the inlet nozzle

gas, as the dynamic pressure of the gas is maximum at the gas inlet pipe and from the side opposite to the location of this pipe. The dynamic head is pre-aligned with decreasing

the gap between the hull and the shell and the variable cross-section of the channels.

J & i’s no economical advantage of this invention is to reduce the size of the device by

using the shell surface to distribute the gas, to increase the efficiency of the device as a result of a uniform distribution of the gas flow by leveling its speeds,

The use of the invention allows

evenly distribute the gas flow at a small height of 1.5-2 in diameter of the nozzle, since gas is extracted from the shell directly installed against the nozzle.

By changing the cross-section of the channels, it is possible to achieve complete alignment of the dynamic flows coming out of the shell, and since the base flow goes over the perforated base, eliminating the entrainment of fluid from the unit (5th hour of the apparatus. Besides The costs required to deliver the gas stream to the apparatus expand the field of application of such devices, which can also be used on block pontoons and offshore platforms.

Claims (4)

Claim 1. Gas distribution device for mass transfer apparatus, made in the form of a shell, installed inside the apparatus casing against the gas inlet nozzle with a gap to it, the sheath is connected to the body by a partition located above the gas inlet nozzle, so that metal consumption by reducing the size of the device and increasing the efficiency of the device due to a uniform ragpree of the gas flow by leveling its speeds and reducing re-entrainment AT 0 five 0 five liquid, it is provided with a perforated base located below the gas inlet nozzle, on which the shell is installed, is made with gas passage channels having a variable cross-section, decreasing to the axis of the gas inlet nozzle. 2. The device according to claim 1, characterized in that the channel area is larger than the village area of the gas inlet pipe and smaller than the cross-sectional area of the shell. 3. The device according to claim 1, that is, so that the shell is made drop-shaped with the orientation of the sharp edge of the gas forming the gas inlet in the direction of the gas inlet nozzle and placed eccentrically relative to the axis of the apparatus 4. The device according to claim 1. This is due to the fact that the shell at the gas inlet nozzle is divided by a longitudinal partition, the ends of which are passed through opposite channels and flanged towards the gas inlet nozzle. FIG. I P 01 / 8.3 Fy