SU1247068A1 - Heat-mass exchange apparatus having fluidized bed packing - Google Patents

Description

-. Lpp rat no p. 1, of tl and h a-t and n with the fact that the annular pockets are glab. inclined annular hoforironnnym partitions, connecting with the body of the appliance.

one

The invention relates to heat and mass transfer apparatus for conducting; The processes of dust collection and masoobena and can be used in chemical, petrochemical and other industries of national economy.

The purpose of the invention -

the efficiency of the mass transfer process

with varying gas loads

and liquids by arranging the packed bodies according to the height of the apparatus in an orderly manner and controlling the liquid load,

The drawing shows the structure of the apparatus.

The apparatus comprises a housing 1, a gas well for outlet 2 and an inlet 3 of gas and liquid 4.5, plates 6 of variable free section in the form of truncated cones with a perforated side surface nozzle bodies 7, for example balls, and annular pockets 8 for liquid. The lower end of the plate 6 is a perforated plateau 9, on which the nozzle bodies 7 are placed. Liquid from the plateau 9 is discharged through the holes 10. The upper end of the plate 6 is rigidly connected to the annular pocket 8 located at the level of the lower end of the overlying plate, and forms there is a gap 11, the size of which does not exceed the smallest size of the nozzle bodies 7. The circular pockets 8 are provided with inclined annular perforated partitions 12 connected to the body 1 from the top. Through the openings 13 of the partitions 12 the liquid enters the ring pocket pockets 8. The side surface of the cone of the plate 6 in its lower part is made perforated to the level of the junction of the inclined perforated partitions 12 and the body 1 of the apparatus. Through the holes 14 are perforated1 / 068

3. The device according to PP, 1 and 2, of which is the fact that the lower part of the side surface of the cone of the dish is perforated to the level of the junction of the annular perforated partitions of the pockets and the body of the device.

side of the plate 6, part of the liquid enters the perforated ivory partition 12, and then into the annular pockets 8. For removal

liquid through the annular pockets 8 with overlying plates provided by the fitting 15.

Heat and Mass Transfer Counterflow Apparatus with a Fluidized Head

works as follows.

The gas through the nozzles 2 enters the first step of the contact- (along the gas flow), before which it is divided into parts, the greater part comes through

bottom end 9 of the plate 6 JB conical part of the plate in the zone of contact with the nozzle, the other part (smaller) enters the gap 11, an additional zone of contact. The gas flow past the bottom end of the plate, in the zone of the fluidized bed, interacts with the liquid draining from the overlying plate. Part: liquids from this contact zone through

the perforation 14 in the lower part of the side walls of the plate 6 enters the gap 11 formed by the side walls of the plate 6 and an annular perforated partition 12 mounted above

pocket.

To prevent the ingress of liquid draining from the overlying plate and not reaching the contact zone / on the plate, a gap is provided in the gap.

perforation of only the lower part of the side walls of the plate not higher than the level of the junction of the perforated kolydeva partition of the pocket with the body,

Additional gaps are created in the gap.

contact zones that merge into it

through the perforation of a partially saturated liquid with a fresh gas stream, which entered the apparatus, and go to the next stages with a “plate”.

Next, the gas flow from the gap enters the conical plate through the perforations 14 in the lower part of the side walls, where it comes into contact with films and splashes of liquid, and the liquid, which is more enriched in the absorbed component, flows from the gap through the perforations 13 of the slit ring pocket 12 and due to the inclined arrangement of the partition 12, is removed from the contact stage. Thus, the gap between the plate and the pocket formed by installing the latter at the level of the lower end of the overlying plate and the perforations in the side O walls of the tray to an inclined perforated joint layer transferred towns pockets allow to carry out an additional gas-liquid contact ,, withdrawn from the plate. Liquid from the contact zone on the plate

before it enters the pocket, twice passes through the perforated partitions and the contact zone between them. The combination of film modes — currents with the impact of droplets and jets on the surface increases the driving forces of the process, and hence the effectiveness of the contact stage.

The liquid from the contact zone through the perforation 14 in the lower part of the plate 6 enters the gap 11 formed by the walls of the plate 6 and an annular perforated partition 12 mounted obliquely above the pocket 8. The gas stream coming from the bottom, the liquid from the gap throws on the annular perforated partition and then through the perforation 13 enters the pocket 8. It is possible for the liquid to slip through and through the gap on the underlying plate.

Editor N.Slobod nickname Order 4047/9

Compiled by A. Sondor

Tehred V. Kadar Proofreader V. Sinitska

Circulation 663 Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (3)

1. HEAT AND MASS TRANSFER APPARATUS WITH A Pseudo-LIQUEFIED NOZZLE, containing a conical body, failed plates with a variable free section in the form of truncated cones with a perforated side surface and nozzle bodies, characterized in that, in order to increase the efficiency of the process under varying gas and liquid loads by an ordered arrangement of nozzle bodies along the height of the apparatus and regulation of the fluid load, the plate is equipped with an annular pocket rigidly connected to its upper end, installed at a level izhnego end overlying plates and forming with the latter a gap, the value of which does not exceed <fi size packed bodies thus packed body having a density which decreases from upstream to downstream plate. go m o od I 24/068 2. The apparatus no η. 1, due to the fact that the annular pockets are equipped with inclined annular perforated partitions connected with the body of the apparatus. '' 3. The device on Mon, 1 and 2, on the other hand, because the lower part of the side surface of the plate cone is perforated to the level of the junction of the annular perforated partitions of the pockets and the device body.