SU1191118A1 - Hydraulic cyclone pumping plant - Google Patents

Description

The invention relates to the technique of separation of inhomogeneous media in a centrifugal field, in particular to pumping units with cleaning fluid in a hydrocyclone, and can be used when pumping fluid containing mechanical impurities.

The purpose of the invention is to increase the efficiency of cleaning fluid from mechanical impurities.

FIG. 1 shows a pump installation, general view; in fig. 2 - confused diffuser insert with elastic longitudinal blades.

The pump unit consists of a pump 1, the suction line of which is connected to a drain pipe 2 'of a hydrocyclone 3 with an inlet 4 and a sand 5 pipe. The discharge pipe 6 with the nozzle of the hydraulic elevator passes through a drain pipe in which an additional multicyclone chamber 7 is installed with inlets 8 and a drain pipe 9. The sand nozzle 10 of the multicyclone chamber is connected to the nozzle 11 and is equipped with a confusor-diffuser insert 12 with elastic longitudinal blades 13 at the inlet with an envelope in the form of a pointed parabola. Before the confused diffuser insert is installed nozzle of the discharge pipe 6.

Pump installation works as follows.

The liquid being cleaned due to the suction capacity of the pump 1 enters the inlet 4 of the hydrocyclone 3, where it receives an intense rotation and moves down. Due to the centrifugal force, large particles are separated from the rotating flow into the peripheral zone and move to the sand nozzle 5. Liquid, saturated with small particles, through the inlets 8 enters the multi-cyclone chamber 7 in which, due to its small diameter, which means greater centrifugal force, occurs separation of small particles. Free from mechanical impurities, the liquid enters the drain pipe 9 and then into the pump 1, and the liquid, saturated with fine particles, is sent to the sand nozzle 10. Pressure of the liquid supplied through the injection pipe 6, in the sand nozzle 10 creates a vacuum. Due to the ejection, a stream of fluid with small particles is sucked into the nozzle 11. With the passage of the confuser-diffuser insert 12 under the action of the hydrodynamic pressure of the rotating fluid, the elastic longitudinal blades 13 bend and thereby create the conditions for a smooth, unaccented entry of the flow into the insert. In addition, the elastic longitudinal blades 13 turn the rotating flow into a straight line, so that in the confusion-diffuser insert 12 there is an effective equalization of the pressure of the fluid supplied through the discharge pipe 6, without reducing the flow through the insert 12. The parabolic shape of the elastic longitudinal blades 13 provides a smooth entrance fluid confused in the diffuser insert 12 with the lowest hydraulic resistance. At the exit of the nozzle 11, the fluid flow creates a vacuum in the sand pipe 5, and ejects a stream with large particles from the chamber of a hydrocyclone 3, which are jointly discharged through the sand pipe 5.

The advantage of the proposed pumping unit is that the use of an additional cyclone chamber installed in the drain nozzle, the sand nozzle of which is equipped with a confusion-diffuser nozzle with elastic longitudinal blades having a pointed parabolic shape in cross section, makes it possible to increase the efficiency of the process of cleaning the fluid from mechanical impurities with minimal hydraulic resistances of an additional cyclone chamber. The pumping unit is compact, has small dimensions and can operate in a wide range of changes in flow and concentration of suspended solids.

1191118

1

1191118

FIG. 2

Claims (1)

Hydrocyclones pump installation, comprising a cylindric hydrocyclone with the inlet, the drain sand nozzles, extra multicyclone disposed coaxially under the spout and bonded sand fitting with Peskov pipe hydrocyclone and hydraulic elevator in a discharge pipe with a nozzle, characterized in that, to improve the effectiveness cleaning fluid from mechanical impurities, peskovoy nozzles multicyclone provided with a confused-diffuser insert with elastic in the form of a pointed parabola longitudinal vanes at the inlet, wherein the end portion of the sand fitting is designed as a nozzle and located in a hydrocyclone for sand pipe, and nozzle hydraulic elevator injection pipe provided upstream convergent diffuser-insert. § ς © oo > X 1191118 one