SU1810082A1 - Water cleaning filter - Google Patents

Description

The invention relates to equipment for the purification of natural water for drinking and industrial water supply and can be used in various sectors of the economy.

The purpose of the invention is improving the quality of water treatment.

Figure 1 shows a diagram of the inventive filter, General view; figure 2 is a section aa in figure 1; in Fig.3 - node B in Fig.1; figure 4 - node In figure 1. ''

The filter contains a housing 1, a granular filter load 2, a source water distributor in the form of a horizontally mounted torus 3 with holes 4 in its upper part, a conical reflector 5 with a visor 6, an inlet pipe 7 for water, perforated pipes 8 for supplying washing water and draining the filtrate pipes 9 for supplying compressed air,

A torus 3 is placed above the filter load 2 and connected to the inlet pipe 7 for water. Inside the torus 3 an additional torus 10 is coaxially fixed with a gap. It is connected to the pipe 11 for supplying air and provided with openings 12 in its upper part.

A conical reflector 5 is placed above the torus 3 and is equipped with coaxially mounted different-sized conical mesh shells 13, the walls of which are inclined to the central part of the housing 1. A tray 14 with a pipe 15 serves as a means for draining the wash water.

The upper part of the wall of the housing 1 is provided with a perforation 16. The pipe 11 is connected to a pipe 17 for supplying compressed air connected to the pipe 18 through the valve 19. The pipe 18 is connected to the pipes 9 and is equipped with a valve 20. The pipes 8 are equipped with a pipe 21.

The filter works as follows. The source water through the pipe 7 is fed into the torus 3 and through the holes 4 flows up. At the same time, compressed air is supplied through the nozzle 11 to the torus 10 and goes out through the openings 12, picks up the liquid and breaks up through the openings 4 together with the liquid, providing high dispersion of water and high phase exchange, which leads to intense oxidation of impurities in the water. In this case, hydrogen sulfide, carbon dioxide and radon are blown out. The rising gas-liquid flow collides with the surface of the mesh shells 13 with their intersection, as a result of which additional droplets of liquid are crushed, mixing them with air, which increases the oxidation of impurities.

Further, the gas-liquid flow collides with the conical reflector 5 and partially 5 falls down, and partially flows in the form of a film in the radial direction along the inner part of the wall of the reflector to the nearest mesh shell 13, after which the water film flows down these shells 10 down, where it meets the upward flow gas-liquid mixture, which leads to additional oxidation of impurities (aeration) and blowing the remaining hydrogen sulfide, carbon dioxide and radon. Next, water 15 passes through a layer of granular charge 2 and is sent to the consumer through perforated pipes 8 and pipe 21.

For the backwash of the granular load 2, the washing water through the pipe 21 20 is supplied through pipes 8, as a result of which an upward flow of water leaches the sediment and is discharged from the filter through the stream 14 and pipe 15. At the same time, compressed gas is supplied through pipes 9, which rises up 25 in the form of bubbles, loosens the load and contributes to the removal of sediment by ascending flows of water.

The effectiveness of the proposed filter for water purification consists in improving the quality of water purification by increasing the rate of oxidation of impurities in the water due to the supply of compressed gas to the torus cavity for the source water and the spraying of water with compressed air when applied to a conical reflector,

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The interaction of the gas – liquid flow with mesh shells leads to an additional phase exchange and oxidation of inclusions.

The installation of conical mesh shells increases the uniformity of water supply to the surface of the filtering load.

Claims (1)

Claim A filter for water purification, including a housing with a filter loading, a horizontal torus placed above it with openings in the upper part for distributing the source water, a conical reflector with a visor mounted above the torus, a water supply pipe connected to the torus, and perforated pipes located under the load for supplying washing water, air and drainage of the filtrate and a means for removing washing water, characterized in that, in order to improve the quality of cleaning, it is equipped with coaxial ___ reinforced inside the torus with a gap with a torch connected to the air supply pipe and made with holes in the upper part, and the reflector is equipped with conically mesh conical mesh shells of different diameters. lb IvU "2