SU952309A1 - Plant for preparing water containing liquid fuel for combustion - Google Patents

Description

The invention relates to energy and chemistry and can be used to prepare fuel and other emulsions intended for combustion.

A device for preparing a flooded liquid fuel for incineration is known, comprising a fuel tank, a circulation loop with a distribution manifold, a supply line and a discharge line connected to the burner.

The disadvantages of this device are high energy consumption, often the installation of special pumps for the delivery of ready mix is necessary.

A device for contacting liquids is also known, comprising a vertical mixing tank, perforated, pipes coaxially arranged one above the other in the tank, three circulation pumps, two of which with suction nozzles connected to one of the perforated pipes, and discharge pipes connected to the discharge nozzles of the pumps 2}

A disadvantage of the known installation is that it does not provide

The sufficiently deep dispersion of the mixture is associated with large losses of electricity for the organization of multiple circulation of the mixture of liquids.

The purpose of the invention is to intensify the processes of mixing and dispersion by providing multi-stage mixing.

ten

The goal is achieved by the fact that the drill is equipped with an additional static mixer placed in the upper part of the tank along its axis and connected to the discharge pipes 15, and the circulation pumps connected to one of the perforated pipelines are located outside the tank symmetrically relative to each other

20 of this pipeline.

In addition, circulation pumps connected to one of the perforated pipes are made in the form of ejectors. /

25

The static mixer is made in the form of a truncated cone with curved blades placed in its upper part and concave perforated plates placed in

Claims (3)

30 of its bottom. FIG. Fig. 1 shows T (an technological installation diagram; Fig. 2: static mixer, general view. An installation for preparing bypassing liquid fuel for burning includes a vertical mixing rail 1, perforated pipes 2-4, coaxially arranged one above another in a tank, three circulation pumps 5–7, two of which b and 6 suction inlets are connected to one of the perforated pipelines 3, injection pipes 8 connected to pump nozzles 5 and 6f and an additional static mixer E located in the upper part of the tank along its axis and connected to the discharge piping 8. Circulating pumps 5 and 6 connected to one of the perforated pipelines 3 are located outside the tank 1, symmetrically with respect to each other at the level of this pipeline 3. The circulation pumps 5 and 6 are made in the form of ejectors.The static mixer 9 is made in the form of a truncated cone with curved blades 10 placed in its upper part and concave perforated plates 11 placed in its lower part. The installation works as follows. The tank 1 is filled with liquids, which are subject to dispersion mixing, through the perforated pipeline 2 of the mixture supply. Here the mixing of the flooded liquid fuel begins. When the tank is filled to a level at which the concave perforated plates 1 of the mixer 9 are immersed in liquid fuel, the circulation pump 7 is turned on. The pump 7 is equidistant from the suction perforated pipe 4 from two sides, while in the liquid, due to the formation of a discharge at. ring on the border of the holes of the pipeline 4, the processes of shear cavitation occur and, accordingly, the first stage of dispersion of the medium is provided. The medium is then supplied to pumps 5 and 7 from the circulating pump 7 and through the suction ring-shaped perforated pipe 3. In this case, complex physical processes occur, the motion of the medium, creating different vortex flows and areas of reduced pressure and pulsating resistance of the medium at various points, a second dispersion level. In pumps 5 and b, a third stage of dispersion occurs, after them, along the discharge pipelines 8, the mud enters the mixer 9 from two opposite sides in such a manner that, when it leaves the discharge pipelines 8, the mixer 9 creates a rotational movement in one direction along the wall, and closer toward the center, a complex, vortex motion created by a cone with blades 10, which are directed towards the movement of the medium, is created, a fourth step of dispersion is created. At the outlet of the mixer 9, the medium passes through a system of perforated plates 11 of a complex profile, having openings of different diameters. There is a fifth stage of dispersion. the mixture is discharged through the discharge pipe 12. The invention provides high-quality mixing and dispersion of liquids in the tank, even with a single circulation cycle, thereby increasing the efficiency of the mixing and dispersion process. 1. Installation for preparing a flooded liquid fuel for incineration, including a vertical mixing tank, perforated pipes coaxially arranged one above the other in the tank, three circulation pumps, two of which with suction nozzles connected to one of the perforated pipes, and pressure pipes, connected to the discharge nozzles of the pumps, characterized in that, in order to intensify the processes of mixing and dispersion by providing -stage stirring, it is provided with an additional static mixer arranged in the upper part of the vessel along its axis and connected to a delivery conduit, and the circulation pump connected to one of the perforated pipes are arranged outside the vessel symmetrically with respect to each other at the level of the pipeline. 2. The installation according to claim 1., wherein the circulating pumps connected to one of the perforated pipes are made in the form of ejectors. 3. Installation according to claim 1, about tl and .h ay. O. and with the fact that the static mixer is made in the form of a truncated cone with curved blades placed in its upper part