SU1240439A1 - Cavitation mixer - Google Patents

Description

The present invention relates to devices for mixing liquid media and can be used in the chemical, food, paper and construction industries.

The aim of the invention is to reduce energy consumption.

The drawing shows a cavitation mixer, a longitudinal section.

The mixer has a housing 1, inside of which is located the shaft 2 with the impeller 3 having. blades 4 super-cavitating profile. Along the exit edges of the blades and the impeller on the injection surface, channels 5, closed by elastic membranes 6, are filled, Channels 5 are connected to an oscillator, made in the form of a source 7 of impulses of fluid pressure (liquid or gas), by means of a shaft 2 made hollow, and located on the shaft 2 of the feed chamber 8 with sliding sealing rings 9.

The device works as follows.

In the housing 1, the components-mixtures are supplied. Inside the housing 1, the hollow shaft 2 rotates with the impeller 3, behind; which form caverns, providing high-quality dispersion and mixing of components due to protection. N. Gorvat editor Order 3426/4

Compiled by N. Fedorov Tehred O. Gortvay

Corrector

Circulation 578. Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

 microbubbles. Periodic changes in the pressure of a liquid or gas using a source of 7 pulsed pressure in the hermetic channels 5, respectively, periodically raise or lower elastic membranes 6 above the delivery surface of the blades 4. At the moments of raising the membranes 6 above the surfaces of the blades, they slow down the flow head generated by the impeller. At the moments of pressure reduction in the channels 5 of the membrane 6, they occupy their initial position under the action of the forces of the elastic membranes and the reaction of the medium. Periodic oscillations of the membranes produce corresponding fluctuations in pressure, which creates a pulse |): cavitation mode cavitation. In the proposed apparatus, the creation of a pulsating regime. Cavitation requires significantly less energy than the known device, since the pulsations are generated by low-power periodic changes in the hydrodynamic characteristics of the blades, and not by the energy-intensive vibrations of the entire mixing organ of the mixer. In addition, hydraulic or pneumatic system

0 is more reliable in comparison with the oscillator of a mechanical type, since there are no high-loaded rubbing nodes subject to vibration.

0

five

Proof-reader I.Erdeyi

Claims (1)

A CAVITATION MIXER comprising a housing, inside of which there is a shaft with an impeller having super-cavitating profile blades, and an oscillation generator, so that, in order to reduce energy consumption, on the discharge surfaces of the blades along their outlet edges channels closed by elastic membranes are made, the oscillation generator is made in the form of a source of pulsed pressure of the fluid and is in communication with the channels. 7ZZ2. SU „1240439 Zzzzz ZZZZZZZZZZZZZZZZZZZ I 1240439 ’2