SU1637829A1 - Water filter - Google Patents

Abstract

The invention can be used to purify drinking and waste water. The purpose of the invention is to increase the efficiency of regeneration of the filter loading. The filter includes a housing in which the filtering load is placed, and nozzles for supplying and discharging water and a regenerating fluid. A distinctive feature of the filter is that it is equipped with hydrodynamic radiators installed at the loading height, while the end of the radiator casing is perforated and installed with the possibility of angular rotation. 2 hp f-ly, 2 ill.

Description

The invention relates to filtration, in particular to granular filters, and can be used to purify drinking and waste water in various industries.

The aim of the invention is to increase the efficiency of regeneration of the granular filter media.

FIG. 1 shows a filter, a general view; in fig. 2 - installation diagram of a hydrodynamic radiator.

The filter includes a cylindrical housing 1 with a chamber 2 collecting sludge. A filtering load 5 is placed in the housing 1 between the support grids 3 and 4. The inlet 6 of the treated water is placed on the cylindrical part of chamber 2 and is installed tangentially to obtain a swirling flow and ensure coarse particles settle in the chamber 2. The outlet of the filtrate 7 is installed in the upper part enclosures. The sludge from chamber 2 is discharged through nozzle 8. A filter loading regeneration device includes nozzles of an input 9 for regenerating fluid, output 10 for a liquid after regeneration, and hydrodynamic emitters 11. connected to a collector 12 for supplying a regenerating fluid. All connections are fitted with shut-off valves 13-17. Hydrodynamic emitters are evenly spaced around the perimeter of the filter housing and the height of the filter loading 5.

Hydrodynamic emitter 11 (Fig. 2) made in the form placed in the casing 18 strip 19 of the nozzle and plate 21. installed on the same axis. An annular spherical support 22 is installed on the outer surface of the casing 18, by means of which the hydrodynamic radiator is fixed in the filter housing 23 by means of flanges 24 and 25. The front wall 26 of the casing is perforated, and the size of the perforation holes must be less than the grain size of the filter loading. Plate 21 is hinged to the casing in the vibration nodes. DLR providing displacement of the radiator under a different mind relative to the filtering load 5, it is connected to the collector via a flexible pipe (not shown) and a n tube 27.

Yo

but

and

X

but

N

The filter works as follows.

The source water through the valve 13 and the nozzle 6 enters the chamber 2, where its flow is twisted. Under the action of centrifugal force, large particles of impurities are thrown against the wall of the chamber and along it are diverted to the conical part, where they accumulate. Purified water from large contaminants through pipe 28 enters housing 1, where, after passing through filter loading 5, it is cleaned and removed from the filter through pipe 1. With a significant increase in the resistance of the filter loading, the filter is stopped for regeneration. To do this, close the valves 13 and 14. Open the valve 15 and discharge the accumulated sludge. The valve 15 is then closed and the valves 16 and 17 are opened. At the same time, the regenerating liquid enters from above through the valve 16 and the connection 9 to the filter loading 5, flushes out contaminants and is discharged through the connection 10. To enhance the regeneration process, the regenerating liquid is supplied to the collector 12 and then hydrodynamic emitter 11 in the layer of filter loading. The exit from the nozzle 20, a jet of liquid hits the plate 21, which is caused to oscillate, generating acoustic waves that penetrate through the perforation holes into the loading layer, helping to remove contaminants from the surface of the grains. At the end of the regeneration process, the supply of fluid to the hydrodynamic radiators is stopped, and then to the outlet 9 They open the valve 15 and discharge the sludge from chamber 2. The valves 15, 17 close0

The valves 13 and 14 are opened and opened. The filter starts to operate in the filtering mode.

The invention allows to intensify the regeneration process due to the processing of loading grains in the near-wall region, to reduce the regeneration time, to improve the regeneration quality and the quality of the filtrate.

Claims (2)

1. A filter for water purification, comprising a cylindrical housing, support grids on which the filtering is placed. 5 loading, nozzles of the input of the liquid to be cleaned and the withdrawal of the filtrate and a device for regeneration of the filter loading with nozzles of the input of the regenerating liquid and drainage of the liquid after regeneration, characterized in that, in order to increase the efficiency of the regeneration of the filter loading, the device of regeneration is equipped with filter headers downloads. 2. The filter according to claim 1, characterized in that the hydrodynamic emitter is made in the form of a nozzle and a plate enclosed in a casing, on the outer surface of which the annular spherical supports are mounted, and the end wall of the casing is perforated, and the size of the perforation holes is smaller than the size of the loading grains . 3 A filter according to claim 2, wherein the hydrodynamic radiator plate is hinged in the housing. 0 five 0 five / after regeneration Filtrate 21 79