SU802578A1 - I.c. engine waste gas neutralizer - Google Patents

Description

(54) FUEL GAS NGL NUTRALIZER FOR INTERNAL COMBUSTION ENGINE

one

The invention relates to the field of mechanical engineering and is intended, in particular, for use in exhaust systems of internal combustion engines. for exhaust gas cleaning.

Exhaust gas neutralizers of internal combustion engines are known, which contain a reservoir, a partly filled with liquid, a vertical tube in the tank with a separator and which is dispersed in it concentrically with the inlet pipe fitted with a perforated portion located under the surface of the liquid, and a filter. The neutralizer allows the exhaust gases to be cleaned of toxic substances 1.

A disadvantage of the known neutralizers is that during the operation, the soot particles retained by the neutralizing liquid come into re-contact with the exhaust gas stream, are entrained by them and partially emitted into the atmosphere.

The aim of the invention is to increase the efficiency of gas cleaning from soot.

This is achieved by installing a filter between the vertical pipe and the walls.

2

tank under the surface of the liquid and made in the form of a porous material with a pore diameter of 0.5-1 mm and the surface of the pores is additionally activated by the catalyst. The filter is provided with an annular flushing channel.

The drawing shows a structural diagram of the Converter.

The neutralizer contains a reservoir 1 with a neutralizing liquid. The inlet 2 is installed vertically to the mirror of the liquid. In the part of the inlet nozzle 2 immersed in the neutralizing liquid, there is a perforated section 3, and the lower end 4 of the nozzle 2 is open. The inlet 2 is placed concentrically in the pipe 5, open at both ends and fixed with the help of ribs 6. The lower end 7 of the pipe 5 is installed with a gap relative to the grid 8 at a level close to the immersion level of the lower end 4 of the nozzle 2.

A separator 9 is placed above the upper end of the pipe 5. The bottom 10 of the tank 1 has the shape of a funnel and is equipped with a hatch 11.

The tank 1 also has an outlet 12, a limiter 13 of the liquid level, made in the form of one or several

tubes installed vertically at the inner side surface of the container and elevated above the level of the neutralizing liquid to a certain predetermined height, the plug 14 of the gulf and the plug 15 of the control of the level of the liquid.

In the neutralizing liquid between the pipe 5 and the walls of the tank 1 is installed the filter 16 in the form of a layer of porous filter material. The filter is provided with at least one annular channel 17 connected by a flushing pipe 18 with a stopper 19.

When the neutralizer is operating, the exhaust gases are bubbled into the neutralizing liquid through the inlet 2 and the holes in the perforated section 3. The gas in the annular space between the nozzle 2 and the pipe 5 forms a gas-liquid mixture, which is hydrostatically pushed up and poured through the upper end of the pipe 5. A certain amount of kinetic energy of the gas-liquid mixture ensures its separation at the separator 9. The separated liquid together with the soot collected is discarded down onto the filter 16. At the same time, the soot is deposited in the pores of the filter, and the filtered neutralizing liquid passes into the lower part of the tank 1. Together with the liquid through the filter part of the solid particles entering the neutralizer with the exhaust gases. After passing through the grid 8, these particles are deposited on the bottom 10 of the tank 1. The cleaned exhaust gases through the outlet 12 to the atmosphere.

In order to increase the efficiency of neutralization from water-soluble organic harmful components of exhaust gases, the pore surface of the filter is covered with a catalyst, for example, platinum-palladium, which converts toxic substances absorbed by the neutralizing liquid into harmless products.

When the neutralizer is periodically serviced, the soot from the filter 16 is removed with water or some kind of washing solution, for example, a solution of caustic soda in water supplied under pressure to the annular channel 17 through the flushing spout 18. The cleaning effect is provided by the high flow rate of the flushing water through the pores of the filter material. Soot with water is removed from the neutralizer through the hatch 11 into the accumulators,

where it is separated from water, then destroyed or used.

The proposed neutralizer makes it possible to efficiently purify the exhaust gases from soot with a constant hydraulic resistance of the neutralizer.

Claims (3)

1. An exhaust gas neutralizer 0 for an internal combustion engine comprising a tank partially filled with a neutralizing fluid, a vertical tube located in the tank with a separator and with a concentric inlet pipe fitted with a perforated portion located under the surface of the fluid and a filter characterized in that , in order to increase the efficiency of gas cleaning from soot, a filter is installed between the vertical tube and the walls 0 tank under the surface of the liquid. 2. The neutralizer according to claim 1, characterized in that the filter is made in the form of a layer of porous material and the pore surface of the filter is additionally activated by the catalyst 3. The neutralizer PP. 1 and 2, characterized in that the filter is provided with at least at least one internal flushing channel. Sources of information taken into account in the examination of Q 1. USSR Copyright Certificate No. 538145, cl. F01 N 3/04, 1975.