RU74577U1 - MEDIA CONTACTING DEVICE - Google Patents

Abstract

1. The apparatus for contacting the media, comprising a housing, a nozzle for supplying a continuous phase, a nozzle for entering the continuous phase, a nozzle for introducing a dispersed phase, a sickle-shaped insert, a dispersed phase atomizer and a drain nozzle, characterized in that to the lower end of the nozzle for introducing a dispersed phase a vertically mounted pipe with a muffled lower end is connected, on the lateral surface of which there are holes arranged in horizontal rows one below the other, the dispersed phase atomizer is mounted on the pipe at the location the upper horizontal row of holes, and under it on the pipe in place of each lower horizontal row of holes, an additional dispersed phase atomizer is fixed. 2. The apparatus according to claim 1, characterized in that the dispersed phase atomizers are made in the form of a hollow truncated cone, with its apex facing up, and installed below it with a gap of a horizontal plate.

Description

The utility model relates to apparatus for conducting heat and mass transfer processes and can be used in the oil and gas processing, chemical, chemical-pharmaceutical, food and other industries.

Known hollow atomizing absorber (see the book by A. G. Kasatkin "Basic processes and apparatuses of chemical technology." M., Alliance, 2005, p. 457, Fig. XI-28), made in the form of a column with nozzles located horizontally in a row, gas inlet and outlet nozzles and liquid outlet.

The disadvantage of this hollow atomizing absorber is its low productivity due to the low gas velocity in the apparatus, the increase of which leads to intensive entrainment of the spent liquid by the gas stream.

The prototype is a medium contacting apparatus (see overview information “Chemical and oil refining engineering. Modern methods and equipment for producing liquid mixtures. M., TSINTIHIMNEFTEMASH, 1990, p. 37, Fig. 15), containing a housing, a nozzle for supplying a continuous phase , a nozzle for entering the continuous phase, a nozzle for introducing a dispersed phase, a crescent-shaped insert, a disperser of a dispersed phase and a drain nozzle.

A common disadvantage of the analogue and prototype is the low efficiency of heat and mass transfer due to a single interaction of liquid and gas.

The objective of the proposed utility model is to increase the efficiency of heat and mass transfer.

The task is carried out by the fact that in the apparatus for contacting media containing a housing, a nozzle for supplying a continuous phase, a nozzle for entering the continuous phase, a nozzle for introducing a dispersed phase, a crescent-shaped insert, a dispersed phase atomizer and a drain nozzle, according to a utility model, to the lower end of the nozzle to enter the dispersed phase, a vertically mounted pipe with a damped lower end is connected, on the lateral surface of which holes are made located in horizontal rows under each other, a dispersed spray gun PS is mounted on

the pipe at the location of the upper horizontal row of holes, and below it on the pipe at the location of each lower horizontal row of holes, an additional dispersed phase atomizer is fixed, and the dispersed phase atomizers are made in the form of a hollow truncated cone, pointing upward, and installed below it with a horizontal plate clearance .

The drawing shows an apparatus for contacting media.

The apparatus comprises a housing 1, a nozzle 2 for supplying a continuous phase, a nozzle 3 for entering a continuous phase, a sickle-shaped insert 4, a nozzle 5 for introducing a dispersed phase and a drain nozzle 6 tangentially located on the side wall of the housing on top of it. A vertically mounted pipe is connected to the lower end of the nozzle 5 7 with a muffled lower end, on the side surface of which holes 8 are made, located one below the other in horizontal rows. On the pipe 7 at the location of each horizontal row of holes 8, a dispersed phase atomizer 9 is mounted.

The atomizer 9 is made in the form of a hollow truncated cone 10 facing upward and installed below it with a gap of a horizontal plate 11. In the housing 1 below the pipe 7 there is a nozzle 12 for output of a continuous phase, one end of which is placed in the axial zone of the housing, and the other the end is brought out of the apparatus.

The device for contacting media works as follows,

Gas enters the apparatus housing 1 through the nozzle 3 and, upon exiting the nozzle 2, acquires a downward spiral motion in the housing. Liquid under pressure is supplied through the pipe 5 to the pipe 7, from which through the openings 8 it is pressed into the narrowing channels of the nozzles 9, formed by the walls of the cone 10 and the horizontal plate 11. The liquid jets flowing out from the narrowing channels of the nozzles 9 at high speed break up into droplets, forming spray torches . The gas flow during movement in the housing 1 downwards penetrates the spray torches, splits the droplets of the spray torches into smaller ones and draws them into a joint downward spiral motion. The centrifugal force arising from the helical motion of a gas-liquid flow drops of liquid are thrown onto the wall of the housing 1, on which they merge and

the formed continuous liquid film flows down the housing wall. Getting on the upper helical surface of the crescent insert 4, the liquid film is twisted, continuing to move along the wall of the housing down a spiral path in the bottom of the apparatus.

The liquid that has reacted with the gas exits the apparatus through the nozzle 6, and the exhaust gas through the nozzle 12.

The placement of the pipe 12 in the housing 1 under the pipe 7 with the location of the end of this pipe in the axial zone of the apparatus eliminates the entrainment of the liquid that has reacted with the gas with the gas stream.

Multiple interaction of gas in the housing 1 of the apparatus with fresh portions of liquid flowing from the narrowing channels of the nozzles 9, provides the creation of a highly developed and continuously updating the interface surface.

Technical and economic efficiency from the use of a utility model is achieved by increasing the efficiency of heat and mass transfer between the continuous and dispersed phases.

This was made possible thanks to:

installing pipes in the apparatus body with holes located one below the other in a horizontal row, which ensures multiple interaction of gas with fresh portions of liquid;

installation on the pipe at the locations of each horizontal row of nozzle openings, made in the form of a hollow truncated cone with the top pointing upward, and mounted below it with a gap of a horizontal plate, which made it possible to increase the interface surface in cross section and in the height of the working area of the apparatus.

Claims (2)

1. The apparatus for contacting the media, comprising a housing, a nozzle for supplying a continuous phase, a nozzle for entering the continuous phase, a nozzle for introducing a dispersed phase, a sickle-shaped insert, a dispersed phase atomizer and a drain nozzle, characterized in that to the lower end of the nozzle for introducing a dispersed phase a vertically mounted pipe with a muffled lower end is connected, on the lateral surface of which there are holes arranged in horizontal rows one below the other, the dispersed phase atomizer is mounted on the pipe at the location In this case, an additional dispersed phase atomizer is mounted on the pipe in place of each lower horizontal row of holes. 2. The apparatus according to claim 1, characterized in that the dispersed phase atomizers are made in the form of a hollow truncated cone, with its vertex pointing upward, and installed below it with a horizontal plate gap.