RU94872U1 - CARTRIDGE FILTER FOR CLEANING DRINKING WATER - Google Patents

Abstract

 Cartridge filter for drinking water purification, comprising 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, filter elements, sealing rings, characterized in that the housing (flask) cartridge filter made of plastic with the addition of 0.33-6.5% antimicrobial masterbatch brand AlphaSan.

Description

The utility model relates to the field of water purification and disinfection in domestic conditions, namely, to devices designed to purify cold water from impurities for the needs of the population and industrial water supply using replaceable filter elements (cartridges), that is, to cartridge filters.

At present, cartridge filters are widely represented by American and Italian manufacturers, for example, Fistri, Agua, Honeyweii and others.

Cartridge filters for a water treatment system consist of a housing into 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.

A known filter for water purification "Drops" (RU, 2132217 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 a removable pipe.

The disadvantage of this design is that during the operation of the filter, the material (plastic) of the receiving container is destroyed, it fades, an unpleasant odor appears and a slippery biofilm is formed.

Known water treatment systems of the Coral series, designed to install replaceable cartridges for the purification of water from centralized drinking water systems, manufactured by Aquarius CJSC (according to TU 3697-002-75658846-2007), containing a filter housing (flask), a cover made of shockproof ABS plastic injection molding, and o-rings.

The disadvantage of this design is that when the filter is contaminated during work, microbes and bacteria accumulate in the flask, and even in the presence of little light or sunlight, the flask “blooms” due to the formation of bacteria and microbes on its inner surface in the form slippery biofilm, which is also a serious threat to human health.

The objective of the proposed technical solution is to create a highly effective antimicrobial filter.

The problem is solved in that in a cartridge filter for drinking water purification, consisting of a hollow body, reinforced with stiffeners, lids equipped with threads for connection, made of ABS plastic by injection molding, filter elements, o-rings, the housing (flask) is made made of plastic with the addition of 0.33-6.5% antimicrobial masterbatch brand AlphaSan.

The concentrate of inorganic active antimicrobial additives (masterbatch) is introduced into the melt of the polypropylene carrier when casting the flask, which avoids the rapid rinsing characteristic of surface application.

AlphaSan brand antimicrobial masterbatches protect materials from unwanted microorganisms, have high thermal stability (over 300 ° C) and practically do not affect color.

The additive is a phosphate-based zirconia ceramic enriched with silver ions.

Such additives have been prepared in accordance with EPA FIFRA, CFR 152.25 and PR Notice 2000-1.

An additive of this type has several advantages:

- provides a long antimicrobial effect;

- - has a high thermal stability and a high degree of dispersion;

- - practically does not affect the color of the product;

- - does not contain volatile substances, due to the inorganic ceramic structure;

- - has a high content of active component.

To confirm the effectiveness of the antimicrobial action, a bacteriological analysis was carried out to determine the resistance of Escherichia coli M-17 to a disinfectant (plastic flask with the addition of an antimicrobial agent).

The results are presented in the table below and confirmed.

Test reports (attached)

Sample After 60 minutes After 24 hours After 48 hours Plastic flask without add. antimicrobial agents (100 ml. fiz. solution + E. Coli M 17 with a dilution of 10 ⁶ 0.1 ml.) 14 something > 300 some > 300 some Plastic flask with ext. Antimicrobial Alpha San-2% (100 ml fiz. Solution + E. Coli M17 with a dilution of 10 ⁶ 0.1 ml.) 15 something No growth 55 something Plastic flask with ext. Antimicrobial agents Alpha San-3% (100 ml fiz. Solution + E. Coli M17 with a dilution of 10 ⁶ 0.1 ml.) 2 something No growth No growth Plastic flask with ext. Antimicrobial Alpha San-5% (100 ml fiz. Solution + E. Coli M17 with a dilution of 10 ⁶ 0.1 ml.) 2 something No growth No growth

During the tests, the inhibitory effect of the plastic flask with the addition of an antimicrobial agent to the E. coli strain was confirmed.

Laboratory tests were carried out at the laboratory center of the Federal State-Funded Healthcare Institution “TsgiE in Vladimir Region”

Thus, the introduction of this masterbatch into a plastic product provides it with a long antimicrobial effect, which cannot be achieved with a surface application of an antimicrobial coating.

The essence of the proposed technical solution is illustrated by the following drawings:

Figure 1 - General view of the cartridge filter for the purification of drinking water,

Figure 2 - cartridge filter for the purification of drinking water in the context.

The cartridge filter for drinking water purification consists of a bulb (1), a cap (2) threaded for interconnection (3), and made of ABS plastic (ABS HF-380, LG Chem) by injection molding, filter elements ( not indicated in the drawings), o-rings. The flask is equipped with stiffeners (4).

The sealing ring is made of PL-2 according to TU 2243-016-10641390-2002

The cartridge filter for water purification works as follows:

A filter element is installed in the housing. The water supplied under the pressure of the water supply enters through an opening in the housing cover and passes through the cartridge. The purified water through the holes in the lid of the body enters the tap of clean water.

Thus, a cartridge filter flask was developed with a long antimicrobial effect, which cannot be achieved with surface application of an antimicrobial coating.

Claims (1)

Cartridge filter for drinking water purification, comprising 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, filter elements, sealing rings, characterized in that the housing (flask) cartridge filter made of plastic with the addition of 0.33-6.5% antimicrobial masterbatch brand AlphaSan.