RU2172640C1 - Liquid cleaning unit - Google Patents

Abstract

FIELD: cleaning various liquids; preparation of drinking water. SUBSTANCE: proposed unit has hollow housing filled with filtering material, supply hose with pipe union for connecting the unit to liquid supply pipe line, cover with discharge hose and check valve fitted in lower portion of pipe union; it is made in form of elastic tube of round or oval section with flattened end in way of liquid flow. Besides that, pipe union may contain filtering material. EFFECT: avoidance of cultivation of microorganisms; simplified construction; enhanced operational reliability. 2 cl, 5 dwg

Description

 The invention relates to a device for cleaning various liquids, mainly for drinking water, in particular from tap water.

 A device for cleaning drinking water, consisting of a cylindrical body with a supply pipe in the lower part and a cover with a drain pipe. Filtering and sorption materials are located in the housing. With the help of this device, water is purified from the water supply system or from other sources. In this case, the water entering the device does not contain impurities in quantities exceeding the MPC (SU, ed. St. N 1414417, B 01 D 24/10, 1988).

 A common feature of the analogue and the present invention is the use of a cylindrical body and the passage of water through the device from the bottom up. The main disadvantage of such a filter is its drying after stopping the filtering and disconnecting the filter from the main pipeline. Due to drying on the filter materials, microflora develops much more actively.

 Analysis of the current state of the art shows that the closest technical solution to the proposed one is a filter for cleaning liquid, including a hollow housing filled with filter material, to the lower part of which is connected a supply hose with a fitting for connecting the device to the fluid supply pipe, a cover with a discharge hose and a return a valve located in the housing below the level of the filter material (patent RU N 2080150, B 01 D 24/10). The device allows you to clean the liquid with the guarantee that the liquid inside the device does not spill out through the inlet pipe.

 This invention solves the problem of the constant presence of filter materials in a liquid medium, however, when disconnected from the water tap, bacteria can still develop in the stagnant zones of the inlet hose and get into the human body when the filter is working with water.

 The disadvantages of this device include the pouring of water from the inlet pipe after the cessation of the operation of the device, which creates inconvenience to the consumer. The disadvantages of the filter include the fact that the ball check valve occupies a significant amount of the filter and does not work reliably under conditions of low water column pressures, especially when mechanical impurities enter the filter from the pipeline.

 In this regard, a technical problem arose - the development of a reliable and easy-to-use device for cleaning liquids, in particular drinking water, which prevents the pouring of water from the filter and the inlet pipe, as well as the prevention of microorganisms in the stagnant zones of the filter and / or on the surface of parts, in contact with water.

 The solution to the problem is achieved by the fact that the device for cleaning liquid contains a hollow housing filled with filter material, to the lower part of which a supply hose with a fitting is connected to connect the device to the fluid supply pipe, a cover with a discharge hose and a check valve located at the bottom of the fitting and made in the form of an elastic tube of round or oval cross section with a tapered end along the liquid in an unloaded state. In addition, filter material may be located in the nozzle above or below the check valve.

 Analysis of the inventive device for cleaning liquids and known technical solutions shows that there is no combination of features that are identical in technical essence to the claimed. A comparative analysis of the proposed solution with the prototype shows that the claimed solution differs from the prototype in the new placement of the check valve, preventing the pouring of water from the inlet pipe, as well as its design.

 Thus, the claimed device meets the criteria of the invention of "novelty." In the literature and practice there is no information about a device identical to the one proposed, and this does not follow explicitly from the prior art. This allows us to conclude that the claimed solution meets the criterion of "inventive step". The proposed solution ensures the achievement of a technical result, can be implemented during water treatment, in particular, for drinking and provides the possibility of its multiple reproduction, which allows us to conclude that the claimed technical solution meets the criterion of "industrial applicability".

The invention is illustrated by the following drawings, where:
in FIG. 1 shows a General view of a device for cleaning liquid;
in FIG. 2 shows a longitudinal section of a fitting for connecting the device to a water supply pipe (not shown in FIG. 2):
a) without filter material,
b) with filter material located under the check valve,
c) with filter material located above the check valve;
in FIG. 3 shows a check valve in a perspective view.

 The liquid purification device comprises a hollow body 1 with filter material, a supply hose 2, a fitting 3 with filter material for connecting the device to a liquid supply pipe (not shown), a cover 4 with a discharge hose 5 and a check valve 6 located at the bottom of the fitting 3 (Fig. 2). The check valve is an elastic tube of round (Fig. 3) or oval cross-section with a tapered end along the liquid in the idle state.

 The described device for cleaning liquid works as follows.

 Using the inlet hose 2 and the fitting 3, the device is connected to the fluid supply pipe (for example, to a water tap). Through the inlet hose 2 through the nozzle 3 and the check valve 6 located inside the nozzle, water is supplied to the filter material located in the hollow housing 1, where the liquid is cleaned and / or conditioned and / or disinfected.

 From the housing 1, water through the discharge hose 5, located in the cover 4, enters the consumer. When fluid is supplied from the pipeline through the inlet hose 2, the end of the elastic tube of the fitting 3, having a flat section, expands, passing the fluid. When the hose 2 is disconnected from the pipeline, the end of the elastic tube becomes flat again, preventing the reverse flow of fluid.

 When the filter material is in the nozzle, water before passing through the check valve or after passing through it passes through the filter material in the nozzle and is cleaned of germs and / or mechanical impurities.

 As a filter material in the nozzle use any known materials designed to purify water from germs and / or solids.

 When using a device for drinking water purification, the check valve can be made of rubber or other elastic material approved for contact with drinking water, for example, rubber according to TU 38-005924-73, TU 38-005-1166-87.

 When cleaning various liquids, a set of filter materials known for this type of liquid is used as a filter material.

 In the case of using the inventive device for treating drinking water as filter material, depending on the composition of the water supplied to the treatment, previously known sorbents, materials for water conditioning, disinfecting materials, or combinations thereof are used.

 For example, the filter material may include active and modified carbons, silver-containing and ion-exchange materials; materials for water conditioning, for example fluorinating material KU-23F (TU-6-006-385-99), natural materials, for example marble chips, etc.

 The most effectively proposed device can be used as a portable household filter for water purification. In addition, it can be used in industrial environments for cleaning various liquids.

 The proposed device for cleaning liquids ensures reliable operation at low pressures of the column of liquids, the liquid does not spill out of the inlet hose. In addition, the design of the device housing is simplified. Upon receipt of drinking water, the formation of microorganisms is prevented by eliminating stagnant zones, especially when stopping water withdrawal for a long period, as well as through the use of additional filter material located in the fitting.

Claims (2)

 1. A device for cleaning a liquid, comprising a hollow body filled with filter material, to the lower part of which is connected a supply hose with a fitting for connecting the device to the liquid supply pipe, a cover with a discharge hose and a check valve, characterized in that the check valve is located at the bottom fitting and made in the form of an elastic tube of round or oval cross section with a tapered end along the liquid.  2. The device according to claim 1, characterized in that the filter material is located in the fitting.

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