RU2221629C1 - Multi-purpose flow-type filter - Google Patents

Abstract

FIELD: thorough cleaning and mechanical decontamination of portable water; concentration of drugs. SUBSTANCE: proposed multi-purpose flow-type filter has housing where tubular elements are located coaxially and secured in tube sheet. Cavities of tubular elements are brought into communication with cleaned water discharge branch pipe. Perforated pipe mounted along axis of housing is fitted with branch pipe supplying water to be cleaned and branch pipe for discharge of water which is not finally cleaned. Detachable porous tube mounted inside perforated pip is hermetically secured at its ends. EFFECT: increased service life of filter; ease in use. 2 dwg

Description

 The invention relates to technological equipment for the purification and mechanical disinfection of drinking water from a consumer, in particular in an apartment, in private homes, in child care facilities, in medical institutions, etc. The invention can be used to purify liquids and gases (air) using filter elements with porosities of at least 3 μm (i.e., the use of micro and ultrafiltration).

 The closest to the claimed device according to the achieved technical result is an apparatus with tubular elements having an outer filter layer fixed in a tube sheet mounted inside the housing, and the hollows of the tubular elements are in communication with a pipe for discharging purified water; moreover, the pipe with holes installed along the axis of the housing has nozzles for supplying purified and drainage of under-treated water (see RF patent 2063785, class 01 B 63/00, 02/10/1995). However, the known apparatus, while ensuring high quality of drinking water, has operational disadvantages, namely, a short service life between the regeneration cycles of tubular elements, since the source tap water is diverse in its pollution (mechanical, chemical, etc.) and is fed for filtration to the outer membrane is a filtering layer of elements with an unorganized type of flushing of these contaminants, which complicates the operational capabilities of the apparatus in domestic conditions.

 The technical result, the achievement of which the claimed device is directed, is a flow-through universal filter for deep water purification in domestic conditions, is to increase the efficiency of its use due to its compactness, simplicity of preliminary water treatment.

 To achieve the specified technical result, the known apparatus — a flow-through universal filter — comprises a housing in which coaxially arranged tubular elements with an external filter layer are installed, fixed in the tube sheet and whose cavities are in communication with the purified water outlet pipe, and a pipe with holes installed along the housing axis, has a nozzle for supplying purified water and a nozzle for draining under-treated water, and a removable porous tube is installed and sealed at its ends inside the pipe with holes whose pores are larger than the pore size of the outer filter layer of the tubular elements.

 Figure 1 presents a structural diagram of a flowing universal filter for deep water purification.

 In FIG. 2 shows the options for fixing the inserted porous tube into the filter.

 A flow-through universal filter for deep water purification in domestic conditions (Fig. 1, 2) includes a housing 1, in which coaxially located tubular elements 2 with an external filter layer are mounted, fixed in a tube sheet 3, cavities 4 of which are in communication with the purified water outlet 5 and the pipe 6 with holes 7, installed along the axis of the housing 1, has a pipe 8 for supplying purified water and a pipe 9 for draining under-treated water, and inside the pipe 6 with holes 7 a removable porous tube 10 is installed and hermetically fixed at its ends, dimensions p p is larger than the pore size of the outer layer of the tubular filter elements 2.

 Flowing universal filter for deep water purification, built into the water supply system of an apartment or a country house and installed, for example, under the sink, works as follows.

 Contaminated liquid - tap water through the pipe 8 for the supply of purified water enters the porous tube 10 under the pressure of the water supply.

 The water flow ensures the removal of filtered impurities that accumulate on the inner surface of the tube 10, which are removed through the pipe 9 of the drainage of the untreated water and then, for example, through a mixer tap installed on the sink.

 Water passing through the porous tube 10 (the pore sizes of which can be made 1-5 μm depending on the contamination of the source water), enters the outer filter layer of the tubular elements 2 (the pore sizes of which can be made 0.1-0.5 μm) and then, through the outlet pipe 5, the purified water flows to the consumer, for example, to a clean water tap installed in the sink.

 The pores of the filter layer (0.1-0.5 μm) of the tubular elements 2 clean and disinfect water (bacteria sizes are larger than 0.6 μm), and a preliminary barrier to contamination in the form of a porous tube 10 increases the filter life. Porous tube 10, as an embodiment, can be made of radiation-modified porous polyethylene - a modern material that has a high dirt capacity and effectively provides backwashing - regeneration of the flow filter. The specified material can be made with additives from a mixture of pressed activated coconut carbon or granules of ion-exchange or iodine-containing resin.

 The flow filter is regenerated automatically when water is used for technical needs through the mixer tap at the sink due to the high-speed longitudinal flow inside the porous tube 10, as well as the back pressure pulse of purified water (filtrate) through the porous wall of the tube 10 from the clean water consumption circuit. The porous tube 10 and the tubular elements 2 themselves can also be made of a thin porous cermet sheet with a filter layer, the pores of which are 1-5 μm and 0.1-0.5 μm, respectively.

 The versatility of the filter lies in the choice of the pore size of the porous tube 10 depending on the contamination of the source water and its simple replacement in operation (see figure 2). At the ends of the pipe 6 with holes 7 hermetically (using rubber gaskets 11 and nuts 12 or stuffing box rubber seals) the installation of a porous tube 10 in the filter.

 The presence of a removable porous tube 10 ensures the operation of the universal flow filter under optimal conditions and increases its serviceability, which means it improves its operational characteristics.

Claims (1)

Flow-through filter for deep water purification in domestic conditions, including a housing in which coaxially arranged tubular elements with an external filter layer are installed, fixed in a tube sheet, cavities of which are connected to the outlet for purified water, a pipe with holes installed along the body axis, having a nozzle purified water supply, characterized in that the pipe with holes has a pipe for discharge of under-treated water, and a removable porous tube is installed and tightly fixed at its ends, pore sizes Torah larger pore size of the outer filter layer of the tubular elements.

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