SU1487961A1 - Liquid mixer - Google Patents

Description

The invention relates to the technique of mixing quick-response fluids and can be applied in chemical, petrochemical and other

2

industries. The invention allows to effectively use the volume of the mixer and simplify its design. The mixed fluids are introduced through tangential slit nozzles 2. The nozzles are adjacent to each other with long sides and are located on different twist radii

at

flow. Guide 7 facilitates helix flow. The central insert 3 can be made flow through to supply the third component to the mixer. To organize the removal or supply of coolant, the central insert can be equipped with a pipe 9. 2 C, f, ly, 4 Il.

3

1487961

four

The invention relates to the technique of mixing quick-response fluids and can be used in chemical, petrochemical and other industries.

The aim of the invention is the effective use of the volume of the mixer and the simplification of its design.

In FIG. 1 shows a mixer, a general view; FIG. 2 shows section A-A in FIG. one; in fig. The '3 is a mixer in which the mixture obtained is introduced into the stream of the third component5 in FIG. 4 mixer, in which the central insert is used to supply coolant.

The liquid mixer comprises a housing 1 with tangential inlet slit nozzles 2 fixed on it, the nozzles directly adjacent one to the other with long sides and arranged so that one is located on a larger twist radius, the other is “a smaller, central insert 3, concentric body, output pipe 4, the flange 5 of the case, to which the flange 6 of the central insert is attached, the guide 7 in the form of a beveled half ring, adjacent with its end to the shear pipe nozzle 2 located on a smaller twist radius. The central insert 3 is blocked, for example, by a plug of conical shape (FIG. 1). Between the housing, 1 and the central insert 3, a mixing chamber is formed, bounded on the side of the inlet nozzles 2 by a protrusion in the flange 6 and the guide 7.

“If it is necessary to introduce the mixture obtained into the flow of the third component, the central insert 3 is connected to the fitting 8 (FIG. 3), with the central insert being flow-through (without the plug).

The need to supply heat to the components to be mixed or to remove its heat exchange surface can serve as the wall of the central insert 3. In this case, a branch pipe 9 is built into the central insert 3 concentric with it, as shown in FIG. 4. To this nozzle, as well as to the central insert 3 extended beyond the mixer, fasten the nozzles 10 for the input and output of the coolant.

The liquid mixer works as follows.

The mixed fluids are introduced through the tangential nozzles 2 into the annular mixing chamber, where a swirling flow is created. Directly adjacent to each other input streams having a flat shape, their vortex interaction in the mixing chamber provide intensive mixing at the initial spin section in the required stoichiometric ratios, which is especially important when conducting a fast chemical reaction.

Guide 7 creates the direction of flow along the helix, largely preventing the reaction products from entering the newly introduced components. A mixture of liquids or chemical reaction products, moving along a helix along the mixing chamber, then enters the outlet nozzle 4. If the components to be injected differ in density, then it is advisable to feed a liquid with a higher density through a nozzle located on a smaller twist radius. The presence of the flange connection allows you to remove the Central insert 3 of the housing 1, allowing the cleaning of the internal cavity of the device, for example, when mixing contaminated liquids or in the formation of reaction products that can settle on the walls.

If the resulting mixture of products of chemical interaction of the starting components according to the technology is to be supplied to the flow of the third liquid, the latter is introduced into the central insert through fitting 8. At the outlet of the central insert made in this embodiment, the third component is connected to the interaction products obtained in the annular mixing chamber the first two components, then the total flow out of the mixer through the outlet 4.

In this case, the energy of the swirling flow coming out of the annular mixing chamber is used to intensify the mixing of this flow with the third component.

If the mixing of liquids requires the supply or removal of heat, for example,

measures during the course of an endotherm or exothermic reaction, the heat exchange surface can be a wall of zeit1487961

insert 3. In this case, the mixing of the injected fluids occurs in the same way as described above using the example of the basic version of the mixer shown in FIG. 1. In addition, a coolant is introduced into the internal cavity of the central insert 3. The input and output of the coolant are carried out through the union 10. ιθ

The proposed mixer of liquids due to the supply of quick-response components in the form of flat adjacent streams into the annular mixing chamber allows intensively carrying them out 15

mixing in the initial part of the twist and make direct contact of the reactants in the required stoichiometric ratios.

This significantly reduces the likelihood of secondary reactions and increases the yield of the target product.

Claims (3)

Claim 1. Mixer of liquids containing tangentially installed tubes, characterized in that in order to efficiently use the volume of the mixer and simplify the design, the mixer is equipped with a central insert, inlet pipes are installed adjacent to each other by long sides oriented parallel to the body forming, the mixing chamber is fitted with a guide , made in the form of a beveled semiring, the lower edge of which is set flush with the lower edge of the nozzle cut. 2. The mixer according to claim 1, characterized in that, in order to expand technological capabilities, the central insert is made flow-through. 3. The mixer according to claim. 1, characterized in that the central insert is provided with means for the mixing chamber, the input slotted 25 supply and output of the coolant. 1487961 Fig.Ch .