SU1404120A1 - Hydrocyclone - Google Patents

Abstract

The invention relates to devices for the separation of heterogeneous dispersed systems under the action of centrifugal forces and can be used in drilling wells in the mining, chemical and other sectors of the industry with the aim of improving the reliability of operation over remote control of the separation process. The hydrocyclone includes a cylindrical body (K) 1, a tangential inlet 2, a drain 3, and a sand gland (PP) 4 branch pipes. At PP 4, a guide is installed with movement (O

Description

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5 with a spring, the position of which is fixed by a bolt 6; A rod (C) 7 with a conical regulator 8 in its lower part is mounted on the guide 5 in the PP 4. In C 7, a vertical through hole is provided, in the upper part of which a check valve 9 is installed, and in the lower part - a sensor 10 of air flow passing through a through hole C 7. The sensor unit 10 includes a current collection, a tube, a plate oscillator and a piezo sensor. The initial suspension under pressure enters K 1 through the tangential inlet 2 and is twisted. Particles under the action of centrifugal forces are thrown to the walls: K t and discharged through PP 4. The clarified liquid is discharged through the drain nipple 3. Since a vacuum is created in the central part of K 1, air from the external space directly enters it . 7, mine condensed product in PP 4, and does not capture it. The air jet excites oscillations in the sensor system 10, the signal from which allows recording not only the clogging moment of PP 4, but also characterizes the operation mode of the apparatus, which allows to automate the process control separation, increase its reliability. In addition, the regulator 8 C 7 transmits oscillations to the thickened suspension, helping to prevent clogging of PP 4 and reducing the loss of the liquid phase through this nozzle. The valve 9 prevents clogging of the hole in parts 7 and 8, and also serves to regulate the aerodynamic resistance of the channel. 4 il.

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The invention relates to devices for the separation of multi-phase suspensions under the action of centrifugal forces and can be used in the drilling of wells, in the mining, chemical and other industries.

The purpose of the invention is to increase the reliability of work due to the distance leg controlling the process of separation.

On represented hydrocyclone, general view; in FIG. 2, node I in FIG. one; in fig. 3 is a view A of FIG. 2; in FIG. 4 — the node L in FIG. one.

The hydrocyclone includes a cylindrical housing 1, a tangential inlet 2, a drain 3, and a sand 4 nozzles. At the sand nozzle 4, with the possibility of axial movement, a guide 5 with a spring is installed, the position of which is fixed by the bolt 6. On the guide 5 A rod 7 with a conical-KIM regulator 8 in its lower part is installed in the sand pipe. In the rod 7 there is a vertical through hole, in the upper part of which a check valve is installed

9, and in the lower part, the sensor 10 of the air flow passing through the skvoy hole of the regulator 8. The oscillations of the rod 7 reduce the frictional forces in the thickened suspension and prevent the sand fitting 4 from clogging 4.

The sensor unit 10 includes a current collector 11, as well as a tube 12, a plate oscillator 13 of oscillations and piezo sensors 14. The oscillations of the plate generator 13 and the deformation of piezo sensors 14 cause an air flow sucked by a hydro cyclone during operation. The frequency and amplitude of the oscillations and, consequently, the parameters of the sensor signal depend on the air flow through the opening in the controller 8. The sensor can be connected to an amplifier and indicating device on the console of the worker controlling the process.

Hydrodilone works in the following way.

The initial suspension under pressure enters the body of the hydrocyclone through the tangential port of the inlet 2 and twists. Under the action of centrifugal forces, the particles of the solid phase are thrown to the walls of the housing 1 and discharged through the sand outlet 4. The clarified fluid flow forms an internal upward flow and exhausts from the hydrocyclone through the discharge nozzle 3. which, as a rule, is sucked into the air through the sand pipe nozzle 4. The air sucked through the nozzle 4 in known devices picks up a part of the thickened suspension and carries it to the drain patrubo to 3. In the proposed hydrocyclone, a stream of air from the external space directly enters the upward flow, a condensed suspension of mine. In doing so, the jet excites oscillations in the sensor system 10,

The dimensions (diameter) of the air column in the central part of the body of the hydro cyclone, the air flow through the sand pipe, reflect the efficiency of the hydro cyclone. This affects the height and strength of the signal from the sensor 10. The signal of the sensor 10 allows you to register not only the blockage of the sand pipe when the thickened suspension accumulates at a considerable height of the lower part of the hydrocyclone body and blocks the passage of air through the sand pipe, but also characterizes the behavior of the hydrocyclone signal The sensor 10 and the hydrocyclone mode of operation are determined experimentally. Sensor signal 10 can serve

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not only for visual information, but also for automatic movement by means of the drive of the regulator 8 of the cross section of the sand socket. The regulator 8 with the rod 7 transfers oscillations to the thickened suspension and reduces the frictional forces between the particles, which helps to prevent clogging of the sand pipe 4 and reduce the loss of the liquid phase through this pipe.

The check valve 9 prevents clogging of the holes in parts 7 and 8, and also serves to regulate the aerodynamic resistance of the channel. Such regulation with the help of removable caps of various thickness with valve 9 is carried out, if necessary, in the event of a significant change in the working conditions of the hydrocyclone: a sharp change in the flow rate

suspension, its density and viscosity, I

Claims (1)

Invention Formula A hydrocyclone, including a cylindrical conical case with a tangential inlet, a drain and a sandpipe, a spring-loaded rod mounted in a sandpipe, characterized in that, in order to increase reliability by remotely controlling the separation process, it is equipped with an oscillator with a piezoelectric sensor and a check valve, in the rod there is a vertical through hole, with the generator and the valve mounted on the lower and upper ends of the hole, respectively. Fig.Z Fiel