SU1675585A1 - Centrifugal pump hydrovortex separator - Google Patents

Abstract

The purpose of the invention is to increase durability and improve the quality of separation by protecting the flow path from abrasive wear and reducing the axial flow velocity. The body 1 with the flow channel 2 has a central body 7 with a cavity 11 and tangential nozzles 8 and an active tangential swirler 5 with nozzles 6. The cavities of the active tangential swirl 5 and the central body 7 are connected to a source of high pressure medium, and the nozzles 8 are offset relative to each other along the surface of the central body in circumferential and axial directions. In this case, the axes of the nozzles 8 are oriented relative to the axis 10 of the flow channel 2 at an angle of 0 ... 900. The nozzles 8 themselves can be displaced relative to the nozzles 6 of the active tangential swirler 5 in the circumferential and axial directions. Flow channel 2 is made diffusive. Tangential nozzles 6 and 8 create a layer of clean liquid throughout the flow part of the separator, protecting the latter from hydroabrasive wear. Simultaneously in the interaction (L S o H SL SL 00 (L

Description

the flow of clean high-pressure fluid leaving the nozzles and 8, the main flow moving through the flow channel 2. is twisted and due to the diffuser of the channel 2 it brakes in the axial direction. In this case, most of the impurity particles have time to separate into channel 2 and enter the diffuser chamber. The execution of the axes of the nozzles 8 at an angle of 0 ... 900 to the axis 10 of the channel allows optimizing the protection functions against abrasive wear of the surface of the central body 7 and the intensity of the swirling of the fluid in channel 2. 1 Cpf-ly. 2 Il.

The invention relates to pumps for pumping liquids with solid inclusions.

The purpose of the invention is to increase the durability and improve the quality of separation by protecting the flow part from abrasive wear and reducing the axial flow rate.

FIG. 1 shows a centrifugal pump hydro-vortex separator, longitudinal section; in fig. 2 is a section A-A in FIG. one.

The centrifugal pump hydraulic separator includes a housing 1 with a flow channel 2, a diffuser chamber 3 with a 4-flow shut-off valve, an active tangential swirl 5 with nozzles 6 connected to a high-pressure medium (not shown), and a central body 7 installed in the housing 1 s the formation of the annular flow channel 2. The latter is made diffuser, and the central body 7 is hollow. In the latter, tangential nozzles 8 are made, displaced relative to each other in the axial and radial directions, with the axis 9 of the nozzles 8 oriented relative to the axis 10 of the flow channel 2 at an angle of 0 ... 900. The cavity 11 of the central body 7 is connected to a source of high pressure medium. The nozzles 6 of the active tangential swirler 5 can be displaced relative to the nozzles 8 of the central body 7 in the axial and circumferential directions.

The device works as follows.

The working medium moves along the flow channel 2 in the direction of the 4-flow shut-off device. From a source of high pressure media, the pure fluid supplied to the active tangential swirler 5 and the cavity 11 of the central body 7 flows out at relatively high speeds from the tangential nozzles 6 and 8 into the flow channel. At the same time, the flow of the working medium moving through the channel 2 is intensely twisted. in the circumferential direction and. due to diff / vision

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five

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flow channel 2, brakes in axial direction. This allows you to extend the residence time of the particles of impurities in the stream during its Motion to the cutter 4 streams, thereby increasing the quality of separation of particles of impurities.

Then, the particles separated to the periphery of the channel 2 fall into the diffuser chamber 3, and the purified liquid is supplied to the pump. At the same time, the tangentially made nozzles b and 8 create a liquid layer over the entire inner surface of the housing 1 and the outer surface of the central body 7, protecting the flow part of the separator from abrasive wear. When the nozzles 6 and 8 are displaced relative to each other in the axial and circumferential directions, the hydraulic losses associated with the impulsive spinning of the flow in channel 2 decrease, and the execution of the axes 9 of the nozzles 8 at an angle of 0 ... 900 to the axis 10 of channel 2 allows to optimize the functions of protecting the surface of the central body 7 from abrasive wear and the intensity of swirling of the flow in channel 2.

Claims (2)

1. A centrifugal pump hydraulic separator comprising a housing with a flow channel, a diffuser chamber with a flow cut-off device, an active tangential swirler with nozzles connected to a source of high pressure medium, and a central body mounted in the housing with the formation of an annular flow channel, characterized in that in order to increase durability and improve the quality of separation by protecting the flow path from abrasive wear and reduce the axial flow velocity, the flow channel is made diffuser, and the central body is hollow, in the latter there are tangential nozzles displaced relative to each other in the axial and radial directions, while the nozzle axes are oriented relative to the flow channel at an angle of 0 ... 900, and the cavity the central body is connected to a high pressure medium source. 2. A separator according to claim 1, characterized in that the active tangent nozzles The main swirler is displaced relative to the nozzles of the central body in the axial and circumferential directions. eleven FIG. 2