RU1805994C - Device for cleaning liquids - Google Patents

Abstract

Usage: in various industries where purification of liquids is required. SUBSTANCE: in a device including a housing mounted on bearing bearings, a hollow perforated shaft with input and output channels of the filtrate, a balancing element is mounted in the filtrate cavity and made in the form of solid disks rigidly fixed to the shaft, while the channels for output of the filtrate made between the disks, the balancing element helps to reduce the pressure drop across the filter element (filter disk package). 1 s, p. f-ly, 3 ill.

Description

The invention relates to liquid purification processes and can be used in various industries where liquid purification is required.

The aim of the invention is to reduce the pressure drop across the filter elements while increasing the efficiency of cleaning liquids.

The goal is achieved in that in a device for cleaning liquids comprising a housing with a fluid inlet pipe, a hopper with a sediment discharge pipe, a filtrate cavity with a filtrate outlet, separated from the cavity by a seal, installed in the bearings of the hollow perforated shaft with the channels of the input and output of the filtrate on which the packet of filtering disks with elements for circulation of the cleaned suspension flow, made in the form of axial holes in their central part, is mounted a reliable hydrodynamic counterweight, made in the form of solid disks rigidly fixed to the shaft, and the filtrate output channels are made between the disks.

Embodiments of the counterweight are possible in the form of impeller wheels or in the form of a Segner wheel,

In other known technical solutions, the distinguishing features of the claimed invention were not found, which meets the criterion of significant differences. The presence of distinctive features from the prototype meets the criterion of novelty, and ensuring the achievement of the goal meets the criterion of a positive effect.

In Fig.1 shows a longitudinal section of the device: in Fig. 2 and 3 - cross section

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a filtrate cavity with hydrodynamic counterweight options.

The device comprises a housing 1 with a fluid inlet pipe 2, a hopper 3 with a pipe 4 for withdrawing sludge, a filtrate cavity 5 separated from the housing cavity by means of a seal 6, a hollow perforated shaft 8 with inlet 9 and filtrate outlet 10 channels installed in the bearings 7, which contains a pack of filter disks 11 with elements for circulating the cleaned suspension stream, made in the form of axial holes 12 in their central part, a balancing element made in the form of a continuous disk is installed in the filtrate cavity Ov 13, rigidly mounted on the shaft, and the channels 10 of the output of the filtrate are made between the disks.

The device operates as follows.

The hollow shaft 8 is rotationally driven by a drive (not shown). The liquid to be cleaned is supplied through the liquid inlet 2, passes through the porous surface of the filter disks 11, and through the channels 9 and 10 the filtrate is discharged to the consumer. The rotation of the liquid together with the filter disks gives rise to centrifugal forces that counteract the advancement of the filtrate inside the hollow shaft 8. Installing solid disks 13 rigidly mounted on the shaft in the filtrate cavity and arranging the filtrate outlet channels 10 between the disks causes the filtrate to rotate with disks, which leads to the emergence of centrifugal forces that promote the filtrate to the consumer. Thus, the centrifugal forces preventing the filtrate from advancing and the centrifugal forces promoting the filtrate advancing are mutually balanced, which leads to a decrease in the total pressure drop across the filter.

When using low-viscosity fluids, it is advisable to install blades 14 between the disks 13 to prevent the liquid from lagging behind the disks, reduce the rotational speed and centrifugal forces, and decrease the counterbalance efficiency.

The implementation of the balancing element in the form of a Segner wheel leads to a reactive moment that coincides with the direction of rotation of the shaft, which reduces the load on the drive.

The invention allows to reduce the pressure drop across the filter elements, which allows the device to be used on suction and drain lines.

Formula of the invention

Claims (2)

1. A device for cleaning liquids, comprising a housing with a fluid inlet pipe, a hopper with a sediment outlet pipe, a filtrate cavity with a filtrate outlet pipe, separated from the body cavity by means of a seal, a hollow perforated shaft with filtrate inlet and outlet channels, on which a filter disc package is located, mounted in the bearings - with elements for circulating the cleaned suspension flow, made in the form of axial holes in their central part, characterized in that, in order to reduce the pressure drop across the filter elements and to increase the efficiency of the liquid purification process, it is equipped with a balancing element installed in the filtrate cavity and made in the form of solid disks rigidly fixed to the shaft, and ka, the filtrate outlet shafts are made between disks. 2. The device according to claim 1, characterized in that, in order to increase the rotational speed of the stream of small viscous liquids, the balancing element is equipped with vanes located between its solid disks.