RU2146962C1 - Country-cottage filter "delphin-d-3 - Google Patents

Abstract

5". FIELD: cleaning water fed from wells from metals, nitrites, nitrates, pesticides, chlorine organic compounds, chlorine, etc. SUBSTANCE: provision is made for washing detachable cartridge located in inlet section of filter, as well as detachable unit of filter elements arranged in this cartridge; detachable unit of filter elements is intended for cleaning water of mechanical impurities; it consists of stack of layers made from porous filter cloths arranged between two perforated gaskets made from synthetic material. Drain tube from synthetic material which passes through center of filter layer stack and perforated gaskets is used as handle for withdrawal of detachable unit from filter when washing is required. EFFECT: improved of cleaning water; increased service life of filter. 2 dwg

Description

 A country filter refers to devices for treating drinking water from wells, wells, etc. using three cleaning methods: mechanical filtration, sorption and ion exchange.

 The country filter purifies drinking water from heavy metals (lead, cadmium, chromium, copper, etc.), as well as from aluminum, manganese, arsenic, iron, nitrates, nitrites, pesticides, organochlorine compounds and free chlorine.

 Known devices of a similar purpose are either structurally complex or insufficiently efficiently purify drinking water, in particular, from salts of heavy metals. For example, in the device [1], which provides a relatively low cleaning efficiency due to the absence of ion-exchange media, the sorption capacity is increased by mechanical means of sealing the sorbent, complicating the design. In a closer structure of the device for purification of drinking water [2], and also with the aim of increasing the sorption ability of the ion exchange resin, a means is used for simultaneous passage of the source water and the filtrate, which complicates the design of the device and, accordingly, its reliability (although making it more universal) . The solutions to problems that lead to constructive complications do not always seem justified to us, since they often lead to the appearance of new problems related, for example, to a decrease in manufacturability, reliability, and an increase in the cost of the claimed products.

 The inventive cottage filter differs from known devices of similar purpose to the simplicity of design, which also provides the additional possibility of cleaning the filter itself from mechanical impurities accumulated in it during operation. The use of an additional removable block of filtering elements periodically washed by the user at the filter inlet, as they become clogged with mechanical suspensions present in the filtered water, avoids reducing the sorption capacity of activated carbon and ion-exchange materials due to insoluble mechanical impurities of water produced from wells and boreholes. A removable cartridge with a perforated bottom, which houses a removable block of filter elements, also serves to filter mechanical impurities, it can be removed and washed.

 The inventive cottage filter consists of two sequentially combined cartridges with 12 stages of cleaning. The design of the filter allows the user to flush the filter elements of the removable unit.

 In FIG. 1 is a schematic sectional view of a country filter. In FIG. 2 shows a sectional view of a removable block of filtering elements inside a removable cartridge (the numbering of the nodes of both figures is through).

The device of FIG. 1 contains the following nodes:
1 - housing
2 - cover
3 - removable cartridge
4 - stationary cartridge
5 - removable block of filter elements (SBFE),
6 - drainage tube - handle SBFE,
7 - perforated gasket,
8 - synthetic food fabric,
9 - a layer of coal SKT,
10 - resin layer KU-2-8,
11 - resin layer AB-17-8,
12 - coal impregnated with silver,
13 - needle-punched fabric,
14 - drain hole with a stopper.

In the removable cartridge 3 in FIG. 2 are placed:
7 - perforated gasket,
8 - synthetic food fabric,
15 - fabric KN-1,
13 - needle-punched fabric.

 The purified artesian or well water is poured into the filter, first falling into the removable cartridge 3 on the removable block of filter elements 5. In this case, mechanical impurities present in the water settle on the surface of the filter elements of the removable block 5, penetrating into the pores and lingering in the thickness of these elements . The water preliminarily purified in this way then passes through the perforated bottom of the removable cartridge 3 to the filter elements of the stationary cartridge 4, separated from each other by layers of synthetic food fabric 8: SKT 9 coal layer, KU-2-8 / 10 / resin layer, AB- resin layer 17-8 / 11 /, carbon impregnated with silver, - 12, needle-punched fabric 13, and then through a layer of synthetic food fabric 8, purified water through the drain hole in the bottom of the housing 1 flows out into the container under the filter.

 The presence of a removable block of filter elements, adapted for washing by the user, allows you to systematically remove the water-insoluble contaminants accumulated in it and thereby save the filter elements in the stationary cartridge 4 for their intended use - to sorb harmful chemical impurities and neutralize them by ion exchange . This increases the efficiency of water purification and increases the working life of the filter.

 The claimed country filter received certificates - hygienic N 19. МЦ.02.969.Т.21348 Q7 and conformity N POCC RU.ПВ01.В00363. The main technical characteristics of the cottage filter are presented in the table.

Sources of information
1. Patent of Russia N 2066301, cl. C 02 F 1/18, 1996.

 2. Patent of Russia N 2049069, cl. C 02 F 1/18, 1995.

Claims (1)

 A country filter for drinking water purification, consisting of two sequentially combined cartridges with 12 cleaning stages - removable and stationary, located in one housing with a drain hole in the center of the lower end of the housing, characterized in that a removable filter unit located in a removable cartridge with a perforated bottom elements made in the form of a sequential set of filter layers of porous fabrics placed between two perforated gaskets perpendicular to the side walls of the removable cartridge well and tightly adjacent to them around the perimeter, and through the center of the specified set of filter layers passes a drainage tube made of synthetic material, which is also a handle for removing the removable block of filter elements from the removable cartridge.

Images