RU167817U1 - CARTRIDGE FILTER FOR WATER CLEANING - Google Patents

Abstract

The utility model relates to the field of water treatment, namely, to treat water used for domestic purposes using replaceable filter elements (cartridges). The technical result of the utility model is to increase the service life of the filter backfill, increase the efficiency of cleaning from mechanical impurities and reduce the hydraulic resistance of the filter to water flow by reducing the contamination of the cartridge. The cartridge filter for water purification consists of a filter cover, which has a special internal structure, representing This is a system of internal channels, with the help of which the filter is regulated in the forward and reverse modes. In addition, the lid is equipped with a flushing valve that is mounted on the lid and can be rotated 180 °, which allows you to use the crane to switch the filter to the operating mode and backwash mode. The filter housing is made of transparent plastic for visual inspection of the contamination of the cartridge. The outer shell of the cartridge is a metal mesh with a mesh size of not more than 10 microns, enclosed between two plastic bases.

Description

The utility model relates to the field of water treatment, namely to treat water used for domestic purposes with the help of replaceable filtering elements (cartridges).

Cartridge filters for water treatment systems consist of a housing in which replaceable filter elements are inserted, made of different materials for cleaning from mechanical impurities (sand, rust, sediment), organochlorine compounds, oil products, heavy metals and dissolved iron, other impurities, as well as enrichment water with silver ions.

Known cartridge filter for drinking water purification (RF patent for utility model No. 94872, IPC: B01D 35/30) containing a housing reinforced with stiffeners (flask), a lid equipped with a thread for connection between each other and made of ABS plastic by injection molding under pressure, filter elements, o-rings, characterized in that the housing (flask) of the cartridge filter is made of plastic with the addition of 0.33-6.5% of the AlphaSan antimicrobial masterbatch.

The disadvantage of this design is the inability to remove pollutants from the filter cartridge, which reduces the cleaning efficiency and the cartridge life over time.

A well-known household filter for fine purification of liquids (RF patent for utility model No. 75384, IPC: CO2F 9/00), containing a sealed hollow cylindrical body with a cover, two fittings and a throttle, a sealed filter element with a membrane having a shorter length than the length of the housing, inside of which it is located, and means for draining filtered water, while it is equipped with a flange and a stopper,

between which at least one filter element is installed and rigidly fixed in it.

The disadvantage of this design is the inability to remove pollutants from the filter cartridge.

The closest analogue is the “Drops” filter for water purification (RF patent for the invention No. 2132217, IPC: C1, B01D 24/12), containing a receiving container with a threaded hole made of plastic, a replaceable cartridge with a mounting thread for screwing into the aforementioned hole and removable pipe.

The disadvantage of this design is that during operation, pollutants are trapped in the filter material of the cartridge and cannot be removed from there, which leads to a decrease in the service life of the filter element and an increase in the hydraulic resistance of the filter.

The objective of the proposed technical solution is to create a highly efficient filter for cleaning household water from mechanical and other impurities with an increased service life.

The technical result of the utility model is to increase the service life of the filter backfill, increase the efficiency of cleaning from mechanical impurities and reduce the hydraulic resistance of the filter to water flow by reducing the contamination of the cartridge.

This object is achieved in that the cartridge filter for water purification, consisting of a cover and a housing, threaded to connect each other, the cartridge, characterized in that the filter housing is made of transparent plastic, the outer shell of the cartridge is made of metal mesh with a mesh size of not more than 10 μm, enclosed between two plastic bases, the filter cover is additionally equipped with a washing valve with a handle, with the possibility of rotation through 180 °.

The utility model is illustrated by drawings, where in FIG. 1 shows a cartridge filter assembly; FIG. 2 shows the proposed direct scheme of operation of the cartridge filter; FIG. 3 shows the proposed reverse washing scheme of the cartridge filter, where:

A - filter cover;

B - filter housing;

B - card cartridge;

1 - filter input;

2 - filter output;

3 - places of attachment of the bracket;

4 - crane;

5 - place of attachment of the top cover;

6 - cartridge installation location;

7 - holes for draining water during washing;

8 - place of attachment of a ball valve;

9 - a grid with a mesh size of not more than 10 microns;

10 - filling the filter;

11 - gaskets;

12 - the base of the cartridge;

13 - ball valve;

14 - hole for the flow of water.

The water filter contains a filter cover A, which is connected to the filter housing B in place 5 by means of a threaded connection. The filter cover has a complex internal structure, it contains special holes for supplying water in direct (Fig. 2) and reverse (Fig. 3) modes. In the filter housing B, a cartridge B is installed in place 6, while place 6 has special grooves that allow the filter to be correctly installed in the center of the housing. In place 8 of the filter housing, a valve 13 is installed using a threaded connection. A supply line is connected to the filter using a threaded connection at input 1, and using

a threaded connection at the output 2 connects the outlet line. On the filter cover there are places for connecting the bracket 3, which, if necessary, allow you to mount the filter on the wall. The crane 4, the handle of which is located on the cover of the filter A, allows you to switch the operating modes of the filter. Holes 7 are needed to drain the water during the backwash of the filter. Cartridge B consists of a stainless steel mesh 9 with a mesh size of not more than 10 μm, enclosed between two plastic bases of the cartridge 12 above and below, in the upper base of the cartridge in the center there is a special hole 14, closed with a synthetic fabric, which does not impede the flow of water, but prevents the contents of the cartridge from waking up. In the cavity of the cartridge is a filter material or a mixture thereof. In special grooves in the bases of the filter 12, gaskets 11 of soft rubber or silicone are inserted, which serve to seal the joints. In FIG. 1 is a view of an assembled filter with a tap attached. The filter housing is made of transparent plastic, which allows you to monitor the degree of contamination of the filter. The filter cover is made of opaque hard plastic. The outer shell of the cartridge is made of stainless steel mesh with a given cell size, due to which the water is purified from mechanical impurities. Cartridge filling may be any of the currently used filter media or a mixture thereof.

The device operates as follows:

- in direct (working) mode:

Water under pressure in the supply network through the inlet 1 with the help of a tap 4 is sent to the filter housing, then the water passes through a stainless steel mesh 9 with a mesh size of 10 μm. Particles larger than 10 microns remain on the grid, due to which water is purified from mechanical impurities. Then water passes through a layer of filter material. Then, through the hole in the upper base of the cartridge 14, water passes to the outlet and is supplied to the discharge line.

- in reverse (flushing) mode:

Water under pressure in the supply network through the inlet 1 is sent to the top of the cartridge by means of a tap 4, then the water passes through the filter backfill and a stainless steel mesh. Particles larger than 10 microns remaining on the grid are washed off by a reverse current of water. Further, the water passes through special openings 7, and through the tap in the lower part of the filter, water with particles washed off the mesh is washed off into the drainage.

To transfer the filter from the operating mode to the washing mode, turn the handle of the valve 4 by 180 ° and open the ball valve 13 in the lower part of the housing.

The tests showed that when passing through a filter of water with a large number of mechanical particles (sand - 0.1 g / l):

- the filter life is increased until the water filtration stops;

- cleaning of the filter is facilitated (there is no need to disassemble and wash the case; for flushing, it is necessary to transfer the tap to the “reverse” mode of operation, and drain accumulated dirt into the tank);

- Increases the total cartridge life up to 4 times.

Claims (1)

A cartridge filter for water purification, consisting of a cover and a body threaded to connect each other, a cartridge, characterized in that the filter housing is made of transparent plastic, the outer shell of the cartridge is made of a metal mesh with a mesh size of not more than 10 microns, enclosed between two plastic bases, the filter cover is additionally equipped with a flushing valve with a handle with the ability to rotate 180 °.

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