RU2196632C1 - Filter plant "moskvichka" for deep purification of drinking water under household conditions - Google Patents

Abstract

FIELD: purification of household drinkable water by filtering. SUBSTANCE: filter plant has successively located flow-type filter whose filter element pores sizing above 1 mcm, cartridge with sorbent- absorbent having air valve and flow-type filter with filter element having pores sizing not more 1 mcm. Pipe unions for withdrawal of incompletely purified water of the first and last filters are connected through T-piece to mixing cock installed on kitchen sink, and pipe union for withdrawal of purified water of last filter is connected to dispensing cock also installed on kitchen sink. EFFECT: efficient use of plant due to preliminary water treatment by method of water degassing, higher quality of water purification. 5 cl, 5 dwg

Description

 The invention relates to technological equipment and mechanical disinfection of tap drinking water at the consumer, in particular, in an apartment, in a kindergarten, clinic, etc.

 A known device designed to purify tap drinking water at a consumer includes a cylindrical body, a filter cell with a ceramic membrane filter element or several filter elements, and a sealed storage tank that houses a sorbent absorber of dissolved toxic and odorous substances (RF Patent 2052278, CL 01 D 63/00, dated 08/08/1993).

 The closest in technical essence and the achieved result to the claimed one is a filter unit for cleaning and disinfecting water (RF Patent 2167695, CL 01 D 63/00, dated 02.16.2000), which contains two flow membrane filters, each of which has a cylindrical housing with attached means for supplying contaminated water, fittings for discharging purified and uncleaned water and a membrane filter element installed in the housing, and a single means for discharging purified water from each filter is connected to an additional Yelnia intake valves mounted on the sink, and is provided with a sorbent cartridge absorber.

 However, in a known installation, the sorbent absorber is placed in a means for removing purified water after the membrane filter, and therefore, the degassing process (dechlorination, etc.) is carried out after the filtration process, which may impair the quality of the water, because the adsorbent absorber itself can increase the presence of solid suspensions and become again a source of bacterial danger in purified water.

 The technical result, to which the claimed installation is directed, is to increase the efficiency of its use due to preliminary water treatment by the degassing method using a flow filter introduced into the supply means of contaminated tap water, the pores of the filter element of which are made more than 1 μm, and the water purified by it passes through the sorbent an absorber with a gas outlet through an air valve and only then through a membrane filter with a filter element, the membrane pores of which are made than 1 micron, supplied to the consumer.

 The problem is solved in that in a filter installation for deep purification of drinking water in a domestic environment, containing flowing membrane filters with fittings for draining purified and uncleaned water, a cartridge with an adsorbent absorber, means for supplying contaminated water and a consumption tap and a tap installed on the sink -mixer, filters are connected in series and between them a cartridge with a sorbent-absorber is installed, which is equipped with an air valve, while the first filter in the direction of the purified water has a filter a friction element with a pore size of more than 1 μm, and its nozzle for draining the under-treated water through a drain is connected to the mixer tap, and the second filter has a filter element with a pore size of less than 1 μm, and its nozzle for draining the purified water is connected to the consumption tap.

 In addition, the filter element of the first filter is made in the form of a porous tube, and the second in the form of a porous tube with a membrane deposited on its inner surface; the fitting for draining the under-treated water of the second filter via a tee is connected to the drainage of the first filter and the mixer tap, while ball valves are installed in front of the tee, the installation is equipped with a pressure reducing valve installed in front of the second flow filter, and the means for supplying contaminated water is equipped with a filter in the form of a removable metal mesh having a clearance of at least 20 microns.

 In FIG. 1 presents a structural diagram of the filter installation "Moskvichka" for deep purification of drinking water in a domestic environment.

 Figure 2 and 3 presents sections aa, bb in figure 1.

 In FIG. 4 and 5 show the installation options for various living conditions.

 The filter installation "Moskvichka" for deep cleaning in a domestic environment (Fig. 1) contains flow membrane filters 1, 8 with fittings 5, 6 for discharging purified and under-treated water, a cartridge with an adsorbent-absorber 7, means for supplying contaminated water 4 and installed at the sink 14, the consumption tap 13 and the mixer tap 12.

 Filters 1, 8 are connected in series and a cartridge is installed between them with a sorbent-absorber 7, which is equipped with an air valve 11; the first filter 8 in the direction of the purified water has a filter element 10 with a pore size of more than 1 μm, and its nozzle 6 for draining the under-purified liquid is connected to a mixer tap 12, and the second filter 1 has a filter element 3 with a pore size of less than 1 μm , and its nozzle 5 for drainage of purified water is connected to a consumption tap 13.

 The filtering element 10 of the flow filter 8 is made in the form of a porous tube 15 (Figs. 2 and 3), and the filtering element 3 of the membrane filter 1 is made in the form of a porous tube 16 deposited on the inner surface of the membrane 17. The membrane 17 can be applied on the outer surface of the porous tube 16. In this case, the pre-purified water in the filter 8 and passed through the cartridge with the adsorbent-absorber 7 is fed to the fitting 5 of the filter 1 and then to the tap for drinking water 13.

 For additional cleaning of the membrane filter 1 (in the case of the bulk version with activated charcoal cartridge 7), it can be equipped with an outlet fitting 18, which is connected through a ball valve 19 to a tee 20 installed in the drain 21 from the flow filter 8 to the mixer tap 12 (Fig. 4).

 The means 4 for supplying contaminated water to the mixer tap 12 is equipped with a ball valve 22 installed in front of the tee 20 in the drain 21.

 In front of the filter 1, it is advisable to install a pressure reducing valve 23 to establish the optimal pressure, since it is known that membranes with pores less than 1 μm have an optimal performance at a pressure of 1.5-2.5 atm. Such a valve can be installed in front of the filter 8, but is not installed in front of the filter 1.

 In the case of using small channels in porous tubes (internal diameters of porous pipes), the means 4 for supplying contaminated water can be equipped with an additional filter 24 with a removable metal mesh 25 with a clearance of at least 20 μm.

 The filter unit "Moskvichka" for deep purification of drinking water in the domestic environment, built into the water supply system of an apartment or a country house and installed under the sink, works as follows.

 Contaminated liquid - tap water through an additional filter 24 with a metal mesh 25 to detain large mechanical suspensions enters the flow filter 8 under the pressure of the water supply.

 The water flow ensures the removal of filtered impurities that accumulate on the walls of the porous tube 15 of the filter element 10 through a mixer tap 12, and the water passing through the wall of the porous tube 15 is cleaned, degassed, and through a cartridge 7 with an absorbent sorbent that effectively sorb the main groups of carcinogens from environment, improving the organoleptic properties of pre-treated tap water, removing unpleasant odors, dechlorinated, improving the taste of drinking water; while the gases exit the purification circuit through the air valve 11, and only then water through the membrane filter 1 with pores less than 1 μm of the membrane 17 of the filter element 3 is again cleaned and disinfected.

 High-quality water when opening a separate faucet 13 installed on the sink 14, enters the consumer. When you close a separate tap 13, the pressure inside the consumption circuit increases and equalizes to the pressure of the water supply. In the case of a high pressure of water supply (more than 3-4 atm) in order to maintain high performance of the membrane filter 1, a pressure reducing valve 23 is installed in front of it.

 Pre-purified water in the filter 8 can be used by washing the outer surface of the cartridge with sorbent-absorber 7, washing and dishwasher in an apartment or country house.

 The regeneration of the flow filter 8 is carried out when using water for technical needs through the faucet 12 of the mixer due to the high-speed longitudinal flow inside the porous tube, as well as the back pressure pulse of the filtrate through its porous wall from the consumption circuit of purified water.

 Membrane filter 1 regeneration is not required since preliminary water treatment in the means 4 for supplying contaminated water ensures the operation of the membrane with pores of less than 1 μm under optimal conditions, and thus deep cleaning and mechanical disinfection of drinking water in domestic conditions are carried out.

Claims (5)

 1. A filter system for deep water purification in domestic conditions, containing flow filters with fittings for discharging purified and uncleaned water, a cartridge with an adsorbent absorber, means for supplying contaminated water and a consumption tap and mixer tap installed on the sink, characterized in that the filters are connected in series and between them a cartridge with a sorbent-absorber is installed, which is equipped with an air valve, while the first filter in the direction of the purified water has a filter element with a pore size of more 1 μm, and its fitting for draining the untreated water through a drain is connected to the mixer tap, and the second filter has a filter element with a pore size of less than 1 μm, and its fitting for draining the purified water is connected to the consumption tap.  2. The filter unit according to claim 1, characterized in that the filter element of the first filter is made in the form of a porous tube, and the second in the form of a porous tube with a membrane deposited on its inner surface.  3. Filter installation according to any one of paragraphs. 1 and 2, characterized in that the fitting for draining the under-treated water of the second filter by means of a tee is connected to the drainage of the first filter and a mixer tap, while ball valves are installed in front of the tee.  4. The filter unit according to any one of paragraphs. 1-3, characterized in that it is equipped with a pressure reducing valve installed in front of the second flow filter.  5. The filter unit according to any one of paragraphs. 1-4, characterized in that the means for supplying contaminated water is equipped with a filter with a removable metal mesh having a clearance of at least 20 microns.

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