SU1440534A1 - Apparatus for mixing liquids - Google Patents

Abstract

The invention relates to devices for averaging liquids, which are used when mixing aqueous heterogeneous systems, aeration in the chemical, food and other industrial sectors, and makes it possible to increase the efficiency of mixing. The device contains an air duct (c) 1 with a diffuser (d) connected to it, made in the form of a cylinder 2 with a perforated cap 3 and a bottom 4. t D equipped with a partition 5 installed at the interface between the cylinder 2 and cap 3, and a hydraulic valve in the form of two concentric tubes 6, 7. In the bottom -4, the central 8 and the peripheral 9 holes are filled. The inner tube 6 is attached to the partition 5 and communicated with the cavity of the cap, and the outer tube 7 is attached to the bottom 4 between its central 8 and the 9 peripheral holes and communicated with the cavity of the cylinder. B1 is connected to the cylinder cavity in its upper part, and the ratio of the diameter B 1 to the live section of the perforation of the cap 3 is no more than I. D is introduced into self-oscillation mode by periodically filling it with air and venting it through the perforated holes of the cap. When the air leaves D, it is filled with water, creating additional jet mixing. 2 hp f-ly, 2 ill. about with $ O) 4 N about SP 00 || nd

Description

-k

9

one,

{ftue.i

,

Have

R

The invention relates to devices for averaging liquids by concentration, mixing heterogeneous water systems, aeration, and can be applied in chemical, food, medical and other industries, as well as in water management and sanitary engineering.

The purpose of the inventions is to increase the mixing efficiency due to the introduction of a diffuser into the self-oscillation mode.

Fig, 1 shows a diffuser, a cut; in Fig.2-cut AA on Fig.K

The device for averaging liquids contains a duct 1 with a diffuser connected to it, made in the form of a cylinder 2 with a perforated cap 3 and a bottom 4, the diffuser is equipped with a partition 5,; installed and the interface of the cylinder 2 with a cap 3, and a hydraulic seal -from in the form of two concentrically divided pipes 6 and 7. In the bottom 4 there is a central opening 8 and peripheral openings 9. The internal pipe 6 is attached to the partition 5 and communicated with the cavity of the hood, and the external 7 is attached to bottom 4 between its center 8 and eriferiynymi apertures 9 and communicated with the cylinder. The duct 1 is connected to the cavity of the cylinder in its upper part, and the ratio of the diameter of the duct I to the living section of the perforation of the cap 3 is no more than 1.

The ratio of the diameter of the central hole 8 in the bottom 4 to the diameter of the inner pipe 6 is 2/3. A conical head 10 is connected to the bottom 4 with a taper angle of 13 ° from its smaller base.

The device works as follows: once.

Air is injected into the distribution system through the air duct. I N fills the volume of cylinder 2. Water is forced out of the cylinder through the opening. ti 9, as well as through the hole 8. Water is pressed until its level reaches the bottom of pipe 6, At this moment the air flows from the volume of the cylinder to the volume of the cap. The pressure in the lower part of the pipe drops sharply and fluid is sucked in through the conically converging nozzles 10 and ejected through the cap 3. The volume of the cylinder is filled with liquid through the openings 9 and 8, and the cycle repeats.

Along with the mixing of air ejected from the device ;, there is also a directed motion of a stream of fluid in the volume of the averager, which also contributes to the qualitative averaging of the system. The location of the nozzle 10 eliminates the formation of stagnant zones and enhances the effect of mixing. In self-injection mode, the device works only if the area of the living section of the perforation of the cap 3 exceeds the diameter of the duct 1E.

In order to prevent water hammering when filling the cavity of the diffuser with liquid, the ratio of the diameters of the central hole 8 in the bottom 4 and the inner / pipe b is chosen to be 2/3 o

As the research data show, the optimal taper angle of the nozzle 10 is an angle of 3, which also corresponds to the maximum flow rate of liquid through the nozzles.

It has been established that with an increase in the area of the living section of the pipe 6, the duration of the emission of air is 3p and, due to this, it reduces the duration of the self-pulse. When the ratio of the diameter of the pipe 6 to the diameter of the hole 8 is equal to 1.55, the period of the self-impulse is 2 s, while at the time of charging the diffuser there is no counter-current inside it.

Claims (3)

Invention Formula . A device for averaging liquids, including a duct with a diffuser connected to it, made in the form of a cylinder with a perforated cap and bottom, is made in order to increase the mixing efficiency by introducing a diffuser into a self-oscillation mode, It is equipped with a partition installed in the place of interface between the cylinder and the cap, and with a hydraulic valve in the form of two concentrically located pipes, and the bottom of the diffuser is made central and peripheral holes, the inner pipe is attached. to the partition and connected to the cavity of the cap, and external attached to the bottom between its central and peripheral holes and communicated with the cavity of the cylinder, while the duct is connected to the cavity of the cylinder in its upper part, and the ratio of the diameter of the duct to the living section of the perforation of the cap is not more than 1, 2, The device according to claim 1, wherein what's the attitude the diameter of the center; the bottom hole in the bottom to the diameter of the inner tube is 2/3, 3. The device according to claim 1, wherein it is provided with a conical nozzle with a taper angle of 13 ° attached to the bottom coaxially with the diffuser on the side of the smaller base. (pu.r