RU66218U1 - GAS CLEANING DEVICE - Google Patents

Abstract

The utility model relates to apparatuses for cleaning gases with absorbents from harmful impurities and solid dust particles before using them in technological processes or before being released into the atmosphere, as well as for extracting target components from a gas mixture by liquid absorbers. This problem is solved due to the fact that the gas purification device comprising a cylindrical body divided into a cavitation-vortex chamber containing a nozzle for supplying a liquid phase, a nozzle for spraying it, as well as a tangential swirling device for introducing the gas to be purified and a vortex chamber containing axial twisting device, made in the form of a screw, a pipe for outputting a gas-liquid mixture, according to a utility model, the apparatus chambers are separated by an annular partition. Also, the axial twisting device of the vortex chamber of the apparatus can be made in the form of several screws on the same axis, arranged in series, or in the form of a perforated screw. 2 ill.

Description

The utility model relates to apparatuses for cleaning gases with absorbents from harmful impurities and solid dust particles before using them in technological processes or before being released into the atmosphere, as well as for extracting target components from a gas mixture by liquid absorbers. The utility model may find application in the oil refining, petrochemical and other industries.

The closest technical solution to the proposed utility model (prototype) is a gas purification device comprising a housing, a tangential nozzle for introducing the gas to be purified, nozzles for supplying a liquid phase, a screw located in the housing with the formation of a vortex chamber, a remote cavitation-vortex chamber at the entrance to a housing in which a gas-liquid dispersant with a nozzle and a cavitator-divider is located to ensure the interaction of the liquid phase with the gas stream in the foam mode (RF Patent for the invention No. 2171705 Application. 18.08 .2000, published on 08/10/2001).

The main disadvantage of the design is the low efficiency of gas purification.

The objective of the utility model is to increase the efficiency of gas purification.

This problem is solved due to the fact that the gas purification device comprising a cylindrical body divided into a cavitation-vortex chamber containing a nozzle for supplying a liquid phase, a nozzle for spraying it, as well as a tangential swirling device for introducing the gas to be purified and a vortex chamber containing axial twisting device made in the form of a screw, a pipe for outputting a gas-liquid mixture, according to a utility model, the apparatus chambers are separated by a ring-shaped partition.

Also, the axial twisting device of the vortex chamber of the apparatus can be made in the form of several screws on the same axis, arranged in series, or in the form of a perforated screw.

Figure 1 presents a General view of the apparatus.

Figure 2 presents the vortex chamber of the apparatus with a twisting device made in the form of several screws on the same axis.

This problem is solved due to the fact that the device for gas purification, including a cylindrical housing 1, divided into a cavitation-vortex chamber, containing a nozzle for supplying a liquid phase 2, an nozzle for spraying 3, as well as a tangential swirling device for introducing the gas to be cleaned and a vortex a chamber 4 containing an axial twisting device 5, made in the form of a screw, a pipe for outputting a gas-liquid mixture 6, according to a utility model, the apparatus chambers are separated by an annular partition 7.

Also, the axial swirling device of the vortex chamber of the apparatus 5 can be made in the form of several screws on the same axis, arranged in series, or in the form of a perforated screw.

The proposed device for gas purification works as follows.

The cleaned gas through the nozzle 4 is tangentially fed into the cavitation-vortex chamber, where it interacts with a finely dispersed cavitating liquid phase, which enters the apparatus 1 through the nozzle 2 and is sprayed by the nozzle 3. The mass transfer process in this chamber proceeds under the influence of the vortex effect. When passing through an annular partition 7 separating the apparatus chambers, the flow is subjected to temporary compression, as a result of which the gas-liquid mixture is redistributed over the cross section of the gas purification device.

Next, the mixture enters the vortex chamber of the apparatus, in which there is an axial twisting device made in the form of a screw 5, due to which the velocity of the medium increases due to an increase in its tangential component, which leads to an increase in flow turbulization and, accordingly, to intensification of mass transfer processes. The use of several screws on the same axis as a swirling device of the vortex chamber of the apparatus, arranged in series with a possible change in the pitch and direction of rotation of the flow, allows creating zones of local

increase the turbulization of the gas-liquid flow with an increased speed of the mass transfer process, and the perforation of the twisting device 5 reduces the hydrodynamic resistance of the vortex chamber of the apparatus. A mixture of a saturated absorbent with the solid particles present in it and the purified gas is discharged from the device for gas purification through the pipe 6, and enters the separation.

Thus, the claimed device allows to increase the efficiency of the gas purification process due to the redistribution of the gas-liquid mixture over the cross section of the device and the use of non-stationary modes of motion intensifying the turbulization of the gas-liquid flow in the vortex chamber of the apparatus.

Claims (3)

1. A device for cleaning gas, including a cylindrical body, divided into a cavitation-vortex chamber containing a nozzle for supplying a liquid phase, a nozzle for spraying it, as well as a tangential swirling device for introducing the gas to be cleaned and a swirling chamber containing an axial swirling device made in in the form of a screw, a nozzle for outputting a gas-liquid mixture, characterized in that the apparatus chambers are separated by an annular partition. 2. The device for gas purification according to claim 1, characterized in that the axial twisting device of the vortex chamber of the apparatus is made in the form of several screws on the same axis, arranged in series. 3. The gas purification device according to claim 1, characterized in that the screw of the vortex chamber of the apparatus is perforated.