RU196764U1 - DIPPER SEPARATOR FOR SHIP SCRUBBER - Google Patents

Abstract

The utility model relates to the field of wet cleaning of exhaust gases using scrubbers with a foam layer and allows to reduce the loss of liquid reagents of the foam layer with the flow of exhaust gas. The utility model can be used for purification of exhaust gases from marine diesel engines from sulfur oxides. The separator droplet separator for a ship scrubber includes a tangential swirl in the form of a cylinder with upper and lower bases and an internal cavity. The swirler is made in the form of a series of blades with a profile shape located along the generatrix of the cylinder radially symmetrically with respect to the center of symmetry, and forming vertical channels made in the form of diffusers with a variable radius of curvature. Narrow concentric slots are made in the lower base along its perimeter. A cylindrical window is made in the upper base, the diameter of which is equal to the diameter of the internal cavity.

Description

The utility model relates to the field of wet cleaning of exhaust gases using scrubbers with a foam layer and allows to reduce the loss of liquid reagents of the foam layer with the flow of exhaust gas. The utility model can be used for purification of exhaust gases from marine diesel engines from sulfur oxides.

A centrifugal separation element is known [RF Patent No. 165691, B01D 45/12, 11/03/2015], comprising a cylindrical body (shell) with vertical slotted through holes connected to drainage pipes located outside the shell, an axial swirler made in the form of a circle with blades along the perimeter, located in the lower part of the housing. The increase in productivity is achieved by reducing the possibility of dropping drops by removing the separated water through slit openings.

Known gas-liquid separator [JPH 061981, B01D 45/12, B04C 3/0010, 07/19/1994], comprising a housing, a vortex-shaped vortex element with tangentially made slots for introducing and twisting the gas-liquid flow in the inner part of the body, thereby achieving high separation efficiency of gas-liquid flow.

The closest technical solution is the separation element of the gas-liquid separator [A.S. USSR No. 982743, B01D 45/12, 12/17/1980], made in the form of a hollow body having tangential slots for introducing gas-liquid flow on the lateral surface in the lower part (cylindrical or conical), arranged at an angle to the generatrix of the body surface, and equipped with the upper part of the fender device for the withdrawal of gas and separated liquid. The increase in productivity is achieved by increasing the axial velocity of the gas stream.

Known technical solutions use drop eliminators to reduce fluid loss, which does not completely eliminate fluid loss and also complicates the design.

The task to be solved is the creation of a droplet separator for purifying the exhaust gases of marine diesel engines from sulfur oxides, which can completely eliminate the loss of liquid reagent.

According to a utility model, the droplet separator for a ship scrubber is a tangential swirl in the form of a cylinder with upper and lower bases and an internal cavity. The swirl is made in the form of a series of blades with a profile shape located along the generatrix of the cylinder radially symmetrically with respect to the center of symmetry and forming vertical channels located between the swirl blades and made in the form of diffusers with a variable radius of curvature.

According to a utility model, narrow concentric slots are made in the lower base along its perimeter.

According to a utility model, a cylindrical window is made in the upper base, the diameter of which is equal to the diameter of the internal cavity.

The essence of the utility model is illustrated by drawings.

The figures show a droplet separator for a ship scrubber.

In FIG. 1 shows a perspective view of a separator-droplet separator in isometry.

In FIG. 2 shows a droplet separator, bottom view.

In FIG. 3 shows a droplet separator, side view.

In FIG. 4 shows a cross-section of a separator-droplet eliminator, a top view in isometry.

The figures marked

1 - tangential swirler;

2 - vertical channels of the tangential swirl;

3 - concentric cuts of the lower base;

4 - a cylindrical window of the upper base;

5-upper base;

6 - lower base;

7 - the internal cavity of the separator-droplet eliminator.

The separator-droplet separator for a ship scrubber contains in its design a vertically located tangential swirler 1, which is made in the form of a series of blades of profile shape located along the generatrix of the cylinder radially symmetrically with respect to the center of symmetry. The shape of the vertical channels 2 of the tangential swirl of the separator-droplet separator passing between the blades is made in the form of diffusers with a variable radius of curvature.

With this form of separator-droplet separator channels, the deposition (up to 60%) of liquid droplets on the vertical walls of the channels begins immediately after the gas-liquid mixture enters the channels, simultaneously with a decrease in the flow velocity and a change in the direction of motion (centrifugal component). The droplets deposited on the walls of the channels flow down to the lower base under the influence of gravitational forces. The remaining drops of reagent (up to 40%), which do not have time to settle on the vertical walls of the channels, upon exiting the channels create a gas-liquid vortex stream in the internal cavity of the separator-droplet separator. Under the action of centrifugal forces, the remaining reagent droplets, as heavier ones, are deposited on the surface of the walls of the internal cavity (between adjacent channels) of the separator-droplet separator, and also flow down to the lower base 6.

Narrow concentric slots 3 are made on the lower base 6 of the droplet separator along the perimeter, opposite the channel exits, through which the reagent flowing down falls back into the gas-liquid (foam) layer located below.

A cylindrical window 4 is made in the upper base 5 of the separator-droplet separator, through which the exhaust gases of the marine diesel engine, purified from sulfur oxide and drops of reagent, are sent to the gas exhaust system of the vessel.

The separator-droplet eliminator is made of water-tight material.

The droplet separator can be made by casting (metal, plastic) or using additive technologies.

As a result of testing the prototype, it was confirmed that the use of the proposed separator-droplet eliminator eliminates the loss of liquid reagent in the marine scrubber when cleaning the exhaust gases of marine diesel from sulfur oxides.

Claims (3)

1. Separator-droplet eliminator for a ship scrubber, which is a tangential swirl in the form of a cylinder with upper and lower bases and an internal cavity, which is made in the form of a series of blades of profile shape located along the generatrix of the cylinder radially symmetric with respect to the center of symmetry and forming vertical channels, characterized in that the vertical channels located between the blades of the swirl are made in the form of diffusers with a variable radius of curvature, in the upper base is made cylindrical th window whose diameter equals the inner diameter of the cavity in the lower base along its perimeter formed concentric narrow slit. 2. The separator-droplet separator according to claim 1, characterized in that it is manufactured using additive technologies. 3. The separator-droplet separator under item 1, characterized in that it is made by casting.

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