Duplex filter

FIELD: construction.

SUBSTANCE: duplex filter comprises the housing with the top and the bottom nozzles for water, the upper drainage and control device, the middle horizontal partition with openings, the lower horizontal partition equipped with the drain caps, the working surface of which faces the upper drainage and control device, the additional horizontal partition installed below the middle horizontal partition and equipped with the drain caps, the working surface of which faces the lower horizontal partition, the additional water nozzle placed on the lateral housing surface between the middle and the additional horizontal partitions, and granular loading. The middle horizontal partition openings are equipped with the drain caps, the working surface of which faces the upper drainage and control device. The granulated loading is placed on the middle and the lower horizontal partitions. The additional water nozzle is made with the possibility to supply water for washing the granular loading placed on the middle horizontal partition and for discharging the spent wash water after washing the granular loading placed on the lower horizontal partition. The additional horizontal partition is set lower than the middle horizontal partition above the granular loading placed on the lower horizontal partition.

EFFECT: provision of washing granular loadings independently from each other.

2 dwg

 



 

Same patents:

FIELD: process engineering.

SUBSTANCE: invention relates to air cleaning. Cartridge (100) is arranged in water treatment device, between raw water store compartment (204) and purified water store compartment (203). Said cartridge (100) has raw water inlet (104), filter material (101) and at least one flat section (107) above water treatment compartment to support filter material. Raw water inlet (104) is composed by flat gauze (107) arranged at said flat section (107).

EFFECT: increased number of cartridge reproduction cycles, longer life.

16 cl, 12 dwg

FIELD: chemistry.

SUBSTANCE: filtering module (versions) of device for liquid purification consists of two work zones and at least one fixing means. First work zone is made with openings for liquid input and air outflow. Second work zone is filled with filler and equipped with output opening in base. Module is made in assembly with third work zone, which contains a type of filler. In accordance with the second version first work zone of filtering module contains filler.

EFFECT: increase of filtering module functional abilities, ensuring effective purification of water with the following introduction of mineral substances into water which is being filtered and filtered water.

29 cl, 17 dwg

FIELD: process engineering.

SUBSTANCE: set of invention relates to drinking water filters, mainly, of gravity type pitcher filters to be used at home. Filter module comprises inlet filter and case filled with filter material, preferably, sorption and softening material, and outlet filter at its bottom. This module ensures optimum water column pressure difference compensation in said case filled with filter material during the entire service life. This allows fluid flows from inlet filter through maximum efficient depth of filter material mainly at a time in lengthwise and crosswise directions to outlet filter. Distance L from any point of fouled fluid inlet to module case via inlet filter to whatever closest point of purified outlet via outlet filter depends on the filter material height H. L should be at least 5% and not over 50% of H, preferably, at least 8% and not over 35%.

EFFECT: higher filtration rate and filter efficiency.

105 cl, 12 dwg

FIELD: chemistry.

SUBSTANCE: filtering chuck consists of successively connected: unit of supply of water to be purified, which includes casing with radial slots and is equipped with fastening device; filtering unit, made in form of hollow cylinder, with meshes placed on its base and provided with mixture of granulated adsorbing components and layer of nonwoven filtering fabric; unit of purified water output, made in form of funnel with blunt angle and opening in the middle. Filtering unit contains upper polymer container, which adjoins from internal side mesh in the upper part of filtering unit, containing granulated inorganic fluorine-containing material, after which along liquid flow placed is polymeric container, which contains inorganic calcium-containing composite. Both cylinders are hermetically fastened on internal wall of hollow cylinder and made with openings along liquid flow. Mixture of granulated adsorbing components contains granulated catalytic charge based on natural zeolite, covered with manganese dioxide, and magnesium-containing ion-exchanging material.

EFFECT: effective water purification and its enrichment with necessary calcium, magnesium and fluorine ions.

6 cl, 1 dwg, 3 ex

Filtration device // 2526377

FIELD: machine building.

SUBSTANCE: filtration device consists of two working zones, at least, one restraint of, at least, one adjusting element. The upper working zone is provided with a possibility of adjusting the value of hardness of liquid to be filtered during the whole life period in the form of a container with the inner space filled with filtration material provided with two groups of distributors of flows of liquid to be filtered. The adjusting element corresponds to a passage provided in the upper working zone and a restraint valve interconnected with it in the process of liquid filtration.

EFFECT: ensuring uniform softening of the liquid to be filtered during the whole life period of device operation with simultaneous retention of the liquid to be filtered.

15 cl, 10 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to water treatment. Proposed method consists in that alcohol-water mix to be cleaned is forced into adsorber column bottom filled with activated coal powder while cleaned alcohol-water mix is bled from adsorber column top. Prior to used, pelletised or ground activated coal in adsorber is subjected to sizing to wash granules or particles smaller than 1 mcm therefrom. Washing fluid is fed to adsorber column top via hydraulic vibrator generating longitudinal hydroacoustic waves in wide range of frequencies while used washing fluid is discharged from column bottom via membrane filter with sizes of pore varying from 1 to 3 mcm. Besides, rate of flow of said mix is set 10 to 100 times higher than that during filtration in adsorber in working conditions.

EFFECT: decreased probability of ingress of nanoparticles.

4 cl, 2 dwg, 2 ex

FIELD: process engineering.

SUBSTANCE: proposed method consists in applying porous plastic sheet on hollow plastic case open end and soldering it to said case to produce filter first end surrounded by first soldered bond between said sheet and hollow case open end. Then, remaining section of said sheet extending beyond soldered bond is cut off to separate filter from said remaining sheet section to chamfer soldered bond to make first skewed end face. Invention relates also to filter comprising hollow plastic case and porous plastic sheet soldered to hollow case open end. Note here that said soldered bond between porous sheet and hollow case open end features skewed surface.

EFFECT: reduced interference in automatic dispensing equipment.

24 cl, 11 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to water treatment. In operating filtration column in contact clarification conditions, Initial water is fed via branch pipe 24 into water chamber 21. Water flows through filtration units 32 into drain chamber 13, wherefrom it is discharged into canalisation. In operating filtration chamber in fast filter conditions, water is fed via branch pipe 17 into box 16. Water flows into filtration column casing 1 and, through holes of web 23, into water chamber 21, wherefrom it is discharged into canalisation. In operating filtration column in filtration unit partial removal conditions, water is fed via branch pipe 24 into water chamber 21. Water flows through filtration units 32. At the same time, water is fed via branch pipe 38 into ejector 37. Formed suspension in water is sucked by intake branch pipe 34 and discharged into tank 41 to be precipitated. In operating filtration column in filtration unit rinsing conditions, rinsing water is fed via branch pipe into water chamber 21. Water flows through filtration units 32 to get into drain chamber 13, wherefrom it is discharged into canalisation.

EFFECT: simplified operation and servicing, easier testing for single- and two-stage cleaning.

2 cl, 2 dwg

Water filter // 2397795

FIELD: mechanics.

SUBSTANCE: invention relates to devices designed for water purification and may be used in water recycling systems. The filter contains a housing separated by an intermediate bottom into the contaminated water chamber filled with a crushed anthracite layer and a quartz sand layer and the filtered water chamber, nipples for delivery and discharge of water being treated, rinse water and air. The filter additionally contains a vertical tube with a water collection funnel and a conic grid, a high resistance distribution drainage system with slot caps in an amount of 20 pcs. per 1 m2 of working surface. The caps are arranged on the intermediate bottom in concentric circles at a distance of 180-220 mm. The ratio of the slot cap slot width to the diametre of grain at the quartz sand fraction lower boundary is 0.55-0.65.

EFFECT: improved technical and economic performance of the filter, the filter reliability enhancement and service life extension.

2 dwg

FIELD: chemistry; mechanics.

SUBSTANCE: device includes main case which is main line for delivered water, filtering material containing flexible fibres, placed in the main case and are arranged longitudinally to the main case, the guiding case for the delivered water, an overlay for the attachment of the filtering material, established in the lower tail-piece of the guiding casing for the delivered water and has a large number of fixing holes in which the bottom ends of the flexible fibres of the filtering material are attached, a plate for ensuring compaction, executed in the form of a toroid and established between the guiding casing and the overlay, the internal porous chamber hanging down from the upper part of the main case and which has a constant radius, thus the porous chamber increases compaction of the upper layer of the filtering material and has a large number of the apertures in it for the supply of the processed water, through which the water processed by the filtering material pours out from the main case and the casing for the discharge of the concentrated filtrate covering the upper part of the main case and surrounding it outside, and letting out of the main case the concentrated filtrate.

EFFECT: high efficiency of filtering and increase in filtration time.

10 cl, 19 dwg

Filtration device // 2262976

FIELD: water filtration.

SUBSTANCE: invention can be used in liquid filters, mainly, jug-type filters for cleaning drinking water. Proposed filtration device consists of housing filled with filtering material and provided with at least one outlet hole in base, cover with holes to let in water and let out air, and at least one locking device arranged between housing and cover. Said locking is furnished with at least one valve.

EFFECT: improved reliability and service characteristics of device.

15 cl, 7 dwg

FIELD: environmental protection; production of the devices for simulation of the water purification.

SUBSTANCE: the invention is pertaining to the devices for simulation of the water purification. The installation contains the filtering columns with the sensors-samplers thieves and the fitting pipes for the water feeding and withdrawal. The filtering columns are placed in the rigid mounting frame with the support stand and the capability of turning around the axis parallel to the stand. The installation is supplied with the gear of turning and tools to fix the columns in the vertical position. The filtering column has the box type form extending in its upper part, where the overflow chambers are formed. Two lateral walls have the sides and are made as a whole with the back wall. The sensors-samplers are mounted on the front wall, which is made detachable. The fitting pipes for feeding of the source water and the rinsing water are mounted in parallel to each other in the lower part of the filtering column. The fitting pipe for withdrawal of the purified water and the rinsing water is mounted in the upper part of the filtering column. The technical result of the invention is expansion of the functional capabilities of the installation and the improved conditions of its operation and maintenance.

EFFECT: the invention ensures expansion of the functional capabilities of the installation and the improved conditions of its operation and maintenance.

4 cl, 2 dwg

Pressure filter // 2310496

FIELD: mechanical engineering; cleaning of natural and sewage waters.

SUBSTANCE: invention is designed for cleaning waters by filtering. It can be used for cleaning waters from colloid, nonsoluble suspended organic and mineral substances. Cylindrical-conical shells are installed inside filter housing for vertical displacement relative to each other. Cylindrical perforated tube is placed in center of shells. Said tube is made telescopic and detachable, its upper end is secured on conical part of upper shell and is connected, through central hole and shell and bellows, with unit to supply influent water and let out wash water. Lower end of perforated tube is rigidly secured on conical part of lower shell. Filtering charge with density smaller than density of water is located between perforated tube and side cylindrical surfaces also made perforated. Use of proposed design of pressure filter improves efficiency of cleaning of natural and sewage waters owing to directed formation of integranular porosity of granulated foamed polysterene over radius of filter in direction of filtration of water of water flow by cylindrical and conical shells movable in vertical direction relative to housing and relative to each and pressed to each other.

EFFECT: improved cleaning of water.

2 cl, 2 dwg

FIELD: technological processes, filters.

SUBSTANCE: invention is related to pressure filters with granular bed, which is intended for liquid purification from dissolved and suspended substances, and may be used in power, chemical, food and other industries, and also in municipal engineering. Pressure filter consists of cylindrical casing with elliptical bottoms, drain bottoms that are mechanically joined to each other with the help of rods, and granular bed that is installed between drain bottoms with drain caps. Drain bottoms are additionally mechanically joined to elliptical bottoms in direction of liquid flow that passes through the filter with the help of two central stands, every of which is mounted on drain bottom and on elliptical bottom at the flange of central inlet or outlet opening of filter and is made in the form of dismountable structure including flanged perforated cartridge, perforated sleeve, compensation bushing with right and left external thread.

EFFECT: reduction of filter metal intensity.

2 dwg

FIELD: chemistry; mechanics.

SUBSTANCE: device includes main case which is main line for delivered water, filtering material containing flexible fibres, placed in the main case and are arranged longitudinally to the main case, the guiding case for the delivered water, an overlay for the attachment of the filtering material, established in the lower tail-piece of the guiding casing for the delivered water and has a large number of fixing holes in which the bottom ends of the flexible fibres of the filtering material are attached, a plate for ensuring compaction, executed in the form of a toroid and established between the guiding casing and the overlay, the internal porous chamber hanging down from the upper part of the main case and which has a constant radius, thus the porous chamber increases compaction of the upper layer of the filtering material and has a large number of the apertures in it for the supply of the processed water, through which the water processed by the filtering material pours out from the main case and the casing for the discharge of the concentrated filtrate covering the upper part of the main case and surrounding it outside, and letting out of the main case the concentrated filtrate.

EFFECT: high efficiency of filtering and increase in filtration time.

10 cl, 19 dwg

Water filter // 2397795

FIELD: mechanics.

SUBSTANCE: invention relates to devices designed for water purification and may be used in water recycling systems. The filter contains a housing separated by an intermediate bottom into the contaminated water chamber filled with a crushed anthracite layer and a quartz sand layer and the filtered water chamber, nipples for delivery and discharge of water being treated, rinse water and air. The filter additionally contains a vertical tube with a water collection funnel and a conic grid, a high resistance distribution drainage system with slot caps in an amount of 20 pcs. per 1 m2 of working surface. The caps are arranged on the intermediate bottom in concentric circles at a distance of 180-220 mm. The ratio of the slot cap slot width to the diametre of grain at the quartz sand fraction lower boundary is 0.55-0.65.

EFFECT: improved technical and economic performance of the filter, the filter reliability enhancement and service life extension.

2 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to water treatment. In operating filtration column in contact clarification conditions, Initial water is fed via branch pipe 24 into water chamber 21. Water flows through filtration units 32 into drain chamber 13, wherefrom it is discharged into canalisation. In operating filtration chamber in fast filter conditions, water is fed via branch pipe 17 into box 16. Water flows into filtration column casing 1 and, through holes of web 23, into water chamber 21, wherefrom it is discharged into canalisation. In operating filtration column in filtration unit partial removal conditions, water is fed via branch pipe 24 into water chamber 21. Water flows through filtration units 32. At the same time, water is fed via branch pipe 38 into ejector 37. Formed suspension in water is sucked by intake branch pipe 34 and discharged into tank 41 to be precipitated. In operating filtration column in filtration unit rinsing conditions, rinsing water is fed via branch pipe into water chamber 21. Water flows through filtration units 32 to get into drain chamber 13, wherefrom it is discharged into canalisation.

EFFECT: simplified operation and servicing, easier testing for single- and two-stage cleaning.

2 cl, 2 dwg

FIELD: process engineering.

SUBSTANCE: proposed method consists in applying porous plastic sheet on hollow plastic case open end and soldering it to said case to produce filter first end surrounded by first soldered bond between said sheet and hollow case open end. Then, remaining section of said sheet extending beyond soldered bond is cut off to separate filter from said remaining sheet section to chamfer soldered bond to make first skewed end face. Invention relates also to filter comprising hollow plastic case and porous plastic sheet soldered to hollow case open end. Note here that said soldered bond between porous sheet and hollow case open end features skewed surface.

EFFECT: reduced interference in automatic dispensing equipment.

24 cl, 11 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to water treatment. Proposed method consists in that alcohol-water mix to be cleaned is forced into adsorber column bottom filled with activated coal powder while cleaned alcohol-water mix is bled from adsorber column top. Prior to used, pelletised or ground activated coal in adsorber is subjected to sizing to wash granules or particles smaller than 1 mcm therefrom. Washing fluid is fed to adsorber column top via hydraulic vibrator generating longitudinal hydroacoustic waves in wide range of frequencies while used washing fluid is discharged from column bottom via membrane filter with sizes of pore varying from 1 to 3 mcm. Besides, rate of flow of said mix is set 10 to 100 times higher than that during filtration in adsorber in working conditions.

EFFECT: decreased probability of ingress of nanoparticles.

4 cl, 2 dwg, 2 ex

Filtration device // 2526377

FIELD: machine building.

SUBSTANCE: filtration device consists of two working zones, at least, one restraint of, at least, one adjusting element. The upper working zone is provided with a possibility of adjusting the value of hardness of liquid to be filtered during the whole life period in the form of a container with the inner space filled with filtration material provided with two groups of distributors of flows of liquid to be filtered. The adjusting element corresponds to a passage provided in the upper working zone and a restraint valve interconnected with it in the process of liquid filtration.

EFFECT: ensuring uniform softening of the liquid to be filtered during the whole life period of device operation with simultaneous retention of the liquid to be filtered.

15 cl, 10 dwg

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