SU1430093A1 - Mixer for liquids and gases - Google Patents

Description

(21) 4159105 / 31-26

(22) 12/10/86

(46) 10/15/88. Vul. Number 38

(71) Kazan Aviation Institute. A.N.Tupolev

(72) A.M.Zaizvnny, V.M.Zaizhenny, T.A.Zaizvnna and S.V.Zaizhenna

(53) 66.063 (088.8)

(56) USSR Author's Certificate No. 316482, cl. B 06 B 1/20, 1969.

(54) MIXER FOR LIQUIDS OR GASES

(57) The invention relates to mixers for liquids and gases used for emulsification and contact mass and heat exchange in chemical

and other industries, and allows for high mixing efficiency when changing the flow characteristics of the mixed

flows. The mixer for liquids and gases contains a mixing chamber 1 and two 2.3-jet emitters with inlet nozzles made in the shape of an Archimedes spiral, supply pipes 4.5 and discharge pipe 6. Mixing chamber 1 is made in the form of diffuser 7 and confused one; between which there is a cylindrical section 9 with a corrugation 10, which is made on its inner surface. The walls of the inlet nozzles of the radiators 2.3 are formed by diffuser and confused surfaces, respectively. The diffuser section 7 of the mixing chamber 1 with the corresponding jet m emitter 2 is installed with the possibility of axial movement and is provided with an adjusting device 11, providing a change in its position relative to the cylindrical portion 9. 1 nl.

5s

(L

The invention relates to heat and power engineering, chemical impurity, and: as a device for mixing flow streams or gases or their compositions, emulsification, and contact mass and heat exchange.

The purpose of the invention is to ensure high efficiency of the process of displacement when changing the flow characteristics of the mixed flows. I The drawing schematically shows a mixer, a slit. I The mixer for liquids and gases contains a mixing chamber 1 and two I jet emitters 2 and 3 with inlet nozzles made in the form of an Archimedes spiral or, supply pipes 4 and 5 1 and a discharge pipe 6. The mixing chamber I is made in the form of a diffuser 7 and; 8 sections, between which a cylindrical section 9 with a corrugation 10 formed on its inner surface is placed, and the walls of the inlet nozzles of radiators 2 and 3 are formed respectively of diffuser and confused surfaces, while the diffuse section of the mixing chamber 7c vuyuschim jet emitter 2 is installed with the possibility of axial movement and is provided with the adjusting device 11.

The mixer works as follows.

Flows of liquids or gases are fed into the mixer through pipes 4 and 5. Then flows are supplied to annular gaps between the jet emitters 2 and 3 and pipes 4 and 5. From these gaps, the flows are directed to channels formed by the nozzles of the emitters, each in its own emitter. The passage of the radiator nozzle, each stream is divided into two jets. Each jet makes a complex movement. The velocity vector of this movement can be decomposed into its components: radial, tangential, and axial. In the channels, the nozzles increase the data rates of the components due to the energy of the pressure over them. At the same time, the output and the radiator into the mixing chamber, they collide at an acute angle to each other and cause the occurrence of sound and ultrasonic vibrations. The stream exiting the first radiator 2 is additionally dispersed in the cylindrical section 9 with its internal surface

ten

15

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25

thirty

five

0

five

0

five

Corrugation 10. Then, the exit into the zone of action of the second radiator 3 ,. it is dispersed by the second stream. With this, more intense sound formation occurs due to the formation of supercritical flow rates. These oscillations spread throughout the part of the streams and contribute to the qualitative mixing of the media that occur in the mixing chamber in the form of two streams having the shape of unwrapped cones. After intensive mixing, the total flow is diverted through the pipe 6. When changing the flow characteristics of the flows, it is necessary to adjust the location of the jet emitters using the adjusting device 11.

By moving the relative position of the diffuser 7 and the cylindrical 9 section in the mixing chamber 1, the cone-shaped jets emanating from the profiled channels are focused. At the same time, the presence of a stable cavitation field with a broadband spectrum of vibrations (even at low flow rates) is ensured on the inner surface of the corrugation section 9.

If it is necessary to mix more than two streams, it is possible to increase the number.

Claims (1)

Invention Formula A mixer for liquids or gases containing a displacement chamber and two jet emitters with inlet nozzles shaped in the shape of an Archimedes' spiral, supply pipes and a discharge pipe are distinguished by the fact that, in order to ensure high mixing efficiency when changing the flow characteristics of the mixed flows, the mixing chamber is made in the form of a diffuser and confused parts, between which is placed a cylindrical section with a corrugation made on its inner surface5 and the walls of the entrance nozzles of the radiators are grounded respectively dif31430093 fuse and confused conical flax with the possibility of axial displacement, while the diffuser is not a relatively cylindrical part of the mixing chamber and is equipped with a setting that adjusts the device with a jet emitter.