RU47253U1 - A WATER CLEANING DEVICE AND A REVERSION-OSMOTIC MODULE FOR IT - Google Patents

Abstract

A group of utility models relates to water preparation technology and can be used to purify drinking water from a water supply system and freshwater sources in stationary household filters.

The technical result is achieved by the fact that the filter for water purification, comprising at least three stages of filtration, including series-connected filter elements, each of which is designed for one of the stages of filtration, means for supplying purified water and means for removing the filtrate, contains means for installing the reverse osmosis module and reverse osmosis module, configured to install on and remove from the specified tool.

The reverse osmosis module contains a housing and a reverse osmosis membrane located in it, which allows filtering water based on the reverse osmosis mechanism.

The module can be made as an additional removable part of the filter, mounted at the request of the consumer, in particular, on the means of fixing the filter elements, if it is included in the filter. It is possible to manufacture and sell the reverse osmosis module in the form of an independent device equipped with elements of appropriate fasteners. 2 sec and 14 z.p. f-ly

Description

The claimed group of utility models relates to water preparation technology and can be used to purify drinking water from a water supply system and freshwater sources in stationary household filters.

Numerous devices are known for purifying water by filtration through a multilayer filter medium, which is associated with a wide variety of filter media.

Variation with the composition of the backfill in known devices is carried out over a fairly wide range - the backfill composition is selected on the basis of a comprehensive study of the mechanism for removing concrete contaminants from water using one or another material.

However, in practice, it is not always possible to completely eliminate unwanted impurities, since it is difficult to accurately select the necessary compositions of the filter media. effective for a wide range of impurities. The introduction of a large number of components into the mixture complicates the preparation of backfill and significantly increases the cost of the entire filter. In addition, the filter medium usually has a low service life and requires frequent replacement or cleaning.

In these cases, water purification by reverse osmosis filters or multi-stage filtration, including the stages of filtration through multilayer filter media and filtration with membrane filters, is more effective.

Both reverse osmosis filters and multi-stage filters are known in the art.

Among currently widely advertised filters, one can mention, in particular, ATOLL A-460E, a reverse osmosis system manufactured by GE Osmonics (USA), with a membrane that traps most of the contaminants. The filter is installed in houses with normal water pressure in the water supply. The ATOLL A-560E reverse osmosis filter, manufactured by the same company, has three pre-treatment flasks in front of the main element - the membrane. Additional

the purification step in the known multi-stage filtration system is used for increased contamination of the source water.

Fox Filter Models FR04, FR05, FR04M. filters of Kontur-Aqua LLC, Nova-Terra LLC, Ekomarket LLC, Geyser-6 (Manufacturer of Aquatoria LLC) also provide multi-stage filtration (see the Internet shop, websites www.foks.khar, www. aquafilter.ru, www.geiser.ru)

A design feature of the known multi-stage filtering filters is the organization of the interaction of their nodes - they are combined into a single system in which each cleaning step (corresponding node) is inextricably linked with other stages (nodes). At the first stage, mechanical cleaning is carried out, at the second stage, many organic compounds are removed through activated carbon, the third stage is reverse osmosis treatment. In systems containing more than three stages of cleaning, use a greater number of cartridges at the filtration stage. So, in the Geyser-6 filter, the 1st stage includes preliminary mechanical cleaning, the 2nd stage - cleaning using a cartridge of granulated coconut coal, the 3rd stage - cleaning using a cartridge of compressed finely porous coal, the 4th stage - membrane cleaning according to the reverse osmosis method, the 5th stage is the post-treatment of water from odors and gases.

As already noted above, all systems known to the applicant, including reverse osmosis, are made in the form of a single device, the individual parts of which are mechanically inextricably linked together and are intended exclusively for joint operation. Such a complex system can not always be used as a household filter because of the high cost and the inappropriateness of its constant operation in the treatment of ordinary water that does not contain particularly harmful impurities.

The Geyser-3 household stationary filter is known (see www.geiser.ru), intended for purification by filtration of hard and superhard water. The filter is installed under the sink. Known filter contains three stages of cleaning. The filter includes:

1. element with a cartridge for mechanical cleaning of foamed polypropylene with a pore size of up to 5 microns to remove suspended impurities

2. element with an ion-exchange filter cartridge with a pore size of 0.05 to 0.5 microns

3. an element containing a carbon cartridge made of coconut activated carbon, intended for the final conditioning of water and the removal of residual chlorine and organochlorine compounds.

Cases of elements are made of polymer (nylon or propylene).

The temperature of the filtered water is not more than 40 ° C. Resource cartridge mechanical cleaning - up to 10,000 liters.

For filtering superhard water, elements of a known filter are performed as follows:

1st element - contains an ion-exchange filter cartridge with a pore size of 0.05-0.5 microns

2nd element - contains a cartridge with an ion exchange resin that absorbs hardness salts

The 3rd element is made similarly to element 3 in the Geyser-3 filter, designed to treat hard water.

The last of the analogues in terms of the number of essential features is the closest to the claimed solution.

The known filter has all the disadvantages of filtration systems noted for the known analogues above, which reduce the efficiency of water purification, leading to a decrease in the filter life and increase its cost. For heavily contaminated water, such filters are not recommended.

The objective of the proposed integrated solution is to expand the range of use of the known device and increase the efficiency of water treatment.

The technical result is achieved in that the filter for water purification, containing. at least three stages of filtration, including series-connected filter elements, each of which is designed for one of the stages of filtration, means for supplying purified water and means for removing filtrate, further comprises means for installing a reverse osmosis module and reverse osmosis module installation on the specified tool and removal from it.

The inventive design allows the filter owner to increase the efficiency of water treatment - for relatively clean water (containing hardness salts, dissolved chemical impurities, organochlorine compounds), use an exclusively multi-stage filtration system with cartridges, and for the treatment of complex water (containing heavy metal salts, mercury, arsenic and etc.

dissolved and undissolved impurities) connect an additional reverse osmosis module.

The module can be made as an additional removable part of the filter, mounted at the request of the consumer, in particular, on the means of fixing the filter elements, if it is included in the filter.

It is possible to manufacture and sell the reverse osmosis module in the form of an independent device equipped with elements of appropriate fasteners.

In a preferred embodiment of the proposed solution, the upper parts of the three filter elements (their housings) are rigidly fixed with a bracket, and the module is rigidly fixed to the reciprocal bracket. The module bracket is mounted on the bracket of the filter elements and their position is fixed using fasteners, for example screws.

The function of the brackets can be performed by brackets or bases (plates), while one of these elements is located on the top of the filter elements, and the reverse osmosis module is on the other. Installing the module in the upper part of the filter provides compact placement of all parts of the system and ease of use of the filter, as the module in this case is located directly under the sink above the filter elements.

In addition to the specified layout, it is also possible another optimal placement of filter elements and a removable module in accordance with the requirements of aesthetics and ergonomics, which meets the essence of the proposed solution.

The built-in reverse osmosis module contains a housing and a reverse osmosis membrane located in it, which allows filtering water based on the reverse osmosis mechanism, i.e. supply water under pressure to finely porous material that allows only water molecules to pass through. An effective membrane can be a thin-film composite with a hole diameter of 1 Angstrom (10 ^-4 μm). You can use other well-known from the prior art reverse osmosis membranes with a similar structure.

To improve the organoleptic properties of the filtrate, the filter, in addition to the module, can be supplemented with a carbon filter.

The inventive group of utility models is illustrated by graphic materials, where Fig. 1 shows in a schematic form a filter with three cleaning stages with a reverse osmosis module and a carbon filter in the assembly. Figure 2 presents a General view of the reverse osmosis module with a carbon filter placed on

one brace. Figure 3 is a side view of the device shown in Figure 2. Positions in figure 1 - figure 3 relate to the following elements:

1 - 1st filter element; 2 - 2nd filtering element; 3 - 3rd filtering element; 4 - bracket for fixing the position of the elements 1,2,3; 5 - part of the line for water supply; 6 - part of the pipeline for drainage of the filtrate; 7 - bracket for reverse osmosis module 8; 9 - carbon filter.

Installation of the filter with the reverse osmosis module 8 is carried out as follows: on the bracket (base) 4 of the filter system containing elements 1,2,3, the counter bracket (base) 7, from which the housing of the reverse osmosis membrane 8 and the carbon filter are previously removed, are fastened with screws. 9 (if there is one). After fixing the brackets 7 to the bracket 4, install the membrane in the module 8 housing, and then the membrane housing and the charcoal filter into the clips to fix their position on the bracket 7. Next, connect the tube 5 to the water supply line and the tube 6 to the tee (adapter) tap for the supply of purified water. Armature elements of water supply systems, filtrate discharge and its supply to the adapter are not shown in FIGS. 1 to 3

In the process of filtration, water passes through elements 1,2,3 sequentially, then enters module 8 and then into carbon filter 9 (if any).

For filtering hard water, in particular, the following cartridges can be used, which are contained in the Geyser-3 filter, and are designed to treat hard water:

1. a cartridge for mechanical cleaning of foamed polypropylene with a pore size of up to 5 microns

2. ion-exchange filter cartridge with pore size from 0.05 to 0.5 microns

3. carbon cartridge made from coconut activated carbon. For the purification of superhard water, the following cartridges from the Geyser-3 filter can also be used, in particular:

1. ion-exchange filter cartridge with a pore size of 0.05-0.5 microns

2. ion exchange resin cartridge

3. pressed carbon cartridge

The filtrate obtained by using the inventive device containing the Geyser-3 filtration system and reverse osmosis module was examined at the Military Medical Academy, St. Petersburg (Ministry of Defense of the Russian Federation). By

The results of studying purified water made a conclusion about the high efficiency of water purification from pathogens, including E. coli, hepatitis A virus and rotoviruses, which can cause diseases dangerous to the human body.

The filter traps bacteria and viruses, salts of heavy metals, arsenic and other contaminants harmful to health.

An optional charcoal filter improves the taste of purified water. Filtrate analyzes were performed in accordance with the following regulatory documents:

GOST 2874-82 Drinking water. Hygienic requirements and quality control.

GOST 3351-74 Drinking water. Methods for determining taste, smell, color and turbidity.

GOST 4011-72 Drinking water. Methods for measuring the mass concentration of total iron.

GOST 4386-89 Drinking water. Methods for determining the mass concentration of fluorides.

GOST 4974-72 Drinking water. Methods for determination of manganese content.

GOST 4152-89 Drinking water. Method for determination of mass concentration of arsenic

GOST 18293-72 Drinking water. Methods for determining the content of lead, zinc, silver

GOST 19413-89 Drinking water. Methods for determining the mass concentration of selenium

GOST 24849-81 Drinking water. Field methods of sanitary-microbiological analysis

GOST R 51680-2000 Drinking water. Method for determination of cyanide content, etc.

Claims (8)

1. The filter for water purification, containing at least three stages of filtration, including series-connected filter elements, each of which is designed for one of the stages of filtration, means for supplying purified water and means for removing filtrate, characterized in that the filter further comprises means for installing a reverse osmosis module. 2. The filter for water purification according to claim 1, characterized in that the means for installing the reverse osmosis module is made in the form of means for fixing the filter elements. 3. The filter for water purification according to claim 2, characterized in that the means for fixing the filtering elements is made in the form of a bracket. 4. The filter for water purification according to claim 2, characterized in that the means for fixing the filtering elements is made in the form of a base. 5. The reverse osmosis module, comprising a housing and a reverse osmosis membrane, characterized in that it is configured to be mounted on a means for installing a reverse osmosis filter module for water purification, containing at least three filtration stages, including filter elements connected in series with the current of water, each of which is intended for one of the stages of filtration, means for supplying purified water, means for removing filtrate and means for installing the reverse osmosis module. 6. The reverse osmosis module according to claim 5, characterized in that the module is equipped with a bracket configured to be mounted on the installation means of the reverse osmosis filter module for water purification. 7. The reverse osmosis module according to claim 5, characterized in that the module is provided with a base configured to be mounted on the installation means of the reverse osmosis filter module for water purification. 8. The reverse osmosis module according to claim 5, characterized in that it further comprises a carbon filter configured to install together with the reverse osmosis module on the installation means of the reverse osmosis filter module for water purification.