SU1430069A1 - Centrifugal separator for extracting drops of liquid from gas flow - Google Patents

Abstract

The invention relates to devices for the separation of gas-liquid streams, can be used in the chemical, food and related industries and improves separation efficiency and reduces flow resistance. Along the axis of the housing 1 in the central channel 13 inside the annular sections 2, a profiled rod 4 is mounted. On the rod 4, a regulating member 5 is arranged for vertical movement, made in the form of a paraboloid of rotation with curved blades 6 mounted on it for primary swirling of the gas-liquid flow. The locks of the position of the regulator 5 inside the annular sections 2 allow, with varying gas-liquid flow, to increase the stability of the regulator 5 by eliminating its oscillations, leading to undesirable pulsations in the swirling flow. 4 il. 1C

Description

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: The invention relates to devices for {separating gas-liquid streams and can be used in the chemical, food and related industries.

The purpose of the invention is to increase the separation efficiency and reduce the hydraulic resistance. I FIG. 1 shows a separator, a full view; in fig. 2 - section A-A in | FIG. one; in fig. 3 shows the node I in FIG. I; in fig. 4 — node II in FIG. 2. j The separator consists of a cylindrical jKOpnyca 1, located one above the other {annular sections 2 swirlers with guiding fixed blades 3, moving vertically along the guiding profiled rod 4 of the regulating body 5 in the form of a parabolic-I loid of rotation equipped with pre-spinning blades 6 I, a motion restrictor of the regulator 7, an axial inlet nozzle 8, a clean gas outlet nozzle 9 I, a trapped liquid nozzle 10 and clamps consisting of steel balls 11 and springs 12. Rod Vol. 4 is located along the axis of the duct 13 of the swirl and is made with recesses 14 corresponding to each section 2 of the swirler. The separator works as follows. The initial gas-liquid flow enters the channel 13 of the annular sections 2 through the central inlet 8, meeting on its way the regulating body 5 fitted on the profiled rod 4 regulator 5 equipped with fixed pre-twist vanes 6 6. The regulator 5 moves along the profiled rod 4 under the action of the dynamic pressure of the gas-liquid flow from the restrictor 7 to the upper end of the rod. Due to the obstruction of the blade 6 of the regulatory authority 5, the gas-liquid flow acquires a primary twist. Further, the gas-liquid flow passes between the blades of the 3 annular sections 2, turning even more twisted. As a result, suspended liquid droplets are thrown onto the walls of the housing 1, where they are deposited, forming a film of liquid that flows downward and is discharged from the apparatus through the nozzle 10. The guide guide core 4 ensures stable operation of the regulator without beats and distortions. It is shaped to eliminate the rotation of the regulator 5 from the effect of the gas-liquid flow on the blades 6.

When the flow rate of the gas-liquid flow changes, the force of the flow of the regulator body 5 changes abruptly, moving it along the rod 4 and thereby turning the individual ring sections 2 on or off from work. Such sequential inclusion in the ring sections 2 maintains the constant velocities of the gas-liquid flow on leaving the annular sections 2 for any changes in the flow rate of the gas-liquid flow through the separator, which in turn ensures optimal conditions for the efficient operation of the separator. The retainers are mounted on the regulator 5 and serve to retain them in the working

0 positions with slight fluctuations in gas load. At the same time, the little changing dynamic pressure force of the flow on the regulator is not able to move it to the intermediate

c with respect to the annular sections m 2 position. This allows the annular section adjacent to the regulating body to operate with a full cross section, which ensures the design mode of operation of the open annular sections. By increasing or decreasing the load on the regulator, the balls of the clips 11 come out of the engagement with the depressions 14 on the profiled rod 4 and slide along it until they coincide with the following depressions 14 located above and below the profiled rod. The pitch between the recesses on the shaped rod is equal to the height of the annular section.

five

Comparative tests of a known separator with a spherical regulator and that of the proposed separators showed that the hydraulic resistance coefficient E, in the prototype, is 28, and in the claimed device, 26.7.

Work locks in all modes

g is reliable. It has been observed that the force on the profiled rod arising from the regulator under the effect of the torque on its blades prevents insignificant movement of the latter relative to the point of fixation.

0 The use of the regulator in the form of a paraboloid of rotation with curved blades of preliminary twisting of the gas-liquid flow instead of a ball allows to increase the separation coefficient by

g 6-10% with a simultaneous decrease in the coefficient of hydraulic resistance

Claims (1)

Invention Formula A centrifugal separator for separating Q from a drop of liquid from a gas flow, comprising a cylindrical body with nozzles of clean gas withdrawal and trapped liquid, an axial inlet nozzle with a swirler made in the form of annular sections located one above the other with guide vanes, mounted with the possibility of vertical movement in the axial channel formed by the annular sections, the regulator and the restriction of its movement, characterized in that, in order to increase the efficiency, the separation and reducing the flow resistance, it is provided with a profiled guide rod placed along the channel axis with The recesses corresponding to each section of the swirler, and the regulator located on the rod, are made in the form of a paraboloid of rotation and are equipped with spring ball clips and curvilinear blades. L - / srig.2 L fi.3