RU169691U1 - Water purifier - Google Patents

Abstract

The utility model relates to the field of filtration, in particular to cartridge liquid filters designed for purification of suspended particles of natural and waste water and can be used in municipal, gardening, car service systems, etc. The technical result of the utility model is simplification of the design of the device and the creation of the possibility of its mobile use. The technical result is achieved in a device for water purification containing a cartridge filter, in the housing of which at an angle to each other in In a number of filter cartridges are fixed with the direction of filtration from the inside out, and the washing direction from the outside to the inside, pipes for supplying purified water to the inlets of the filtering cartridges, a filtrate discharge pipe to the consumer, dirt discharge pipes for drainage when each cartridge is flushed, while dirt pipes for drainage equipped with shut-off valves, and a device that controls the sequence of operation of the shut-off valves of the device, and the device includes a hydraulic accumulator connected to the interior of the housing filter cartridge through the outlet of the filtrate to the consumer, equipped with a shut-off valve, while the device that controls the sequence of operation of the shut-off valves of the device is made in the form of a timer. 2 ill.

Description

The utility model relates to the field of filtration, in particular to cartridge liquid filters designed for purification of suspended particles of natural and waste water and can be used in municipal, gardening, car service systems, etc.

A known filter for cleaning liquids, comprising a housing divided by tube sheets into the chambers of the filtered liquid and the filtrate, a switchgear in the form of a distribution head with a drive and filter elements having the form of cartridges installed in the tube sheets and made in the form of a perforated holder with holes in the ends, with filtering material and a frame of plates placed inside it (US patent No. 34166669, CL 210-333, publ. 1968).

The disadvantages of the known filter are the design complexity, unreliable operation, as well as the high flow rate of the washing fluid supplied by the reverse current.

The closest to the claimed technical essence and the achieved result is a device for cleaning

liquid, made in the form of a cartridge filter, in the housing of which filter cartridges are fixed in two rows at an angle to each other with a filtering direction from the inside out and a washing direction from the outside to the inside. The cartridge filter also includes nozzles for supplying purified water to the inlet of the filter cartridges and discharging mud flow into the drainage during washing of each filter cartridge, equipped with automatic shut-off valves, a filtrate supply pipe to the consumer, and a device that controls the sequence of operation of the automatic shut-off valves of the device, made in the form sensors located outside the casing and fixing the pressure difference between the filtrate inside the casing and the liquid being cleaned inside each cartridge. Upon reaching the pressure drop of the liquid being cleaned in one of the cartridges and the filtrate inside the filter housing of a predetermined set limit, fixed by pressure sensors, this cartridge is flushed, while the remaining cartridges are in filtration mode and the filtrate is continued to be discharged to the consumer (RF patent for utility model No. 137477, IPC B01D 27/00, published on 02.20.2014. - prototype).

The design of the prototype provides a sufficiently high efficiency of the filtration and washing processes

filter cartridges, which contributes to the proposed pressure sensor system. In addition, this arrangement of filter cartridges leads to the optimal organization of the internal space, allowing to reduce the dimensions of the filter housing in height and length, which can be decisive in case of a shortage of free working space at the facility.

However, the prototype has the following disadvantages:

- design complexity due to the need to install a sensor on each filter cartridge, fixing the pressure difference between the filtrate inside the housing and the liquid being cleaned inside the cartridge, as well as automatic shut-off valves on the pipes for supplying the purified water to the filter cartridges;

- effective washing of a certain filter cartridge, while the remaining cartridges are in filtration mode, while continuing to continuously supply the filtrate to the consumer, it is possible only if the filtrate pressure is high in the housing, which requires the use of a powerful, high-pressure pump (or a sufficient length of the main path purified water to the inlet holes of filter cartridges), which limits the use of this device

hospital conditions.

The problem of simplifying the design of a device for water purification and creating the possibility of its mobile use is being solved.

The essence of the utility model is that the water purification device contains a cartridge filter, in the housing of which filter cartridges are fixed in two rows at an angle to each other with the direction of filtration from the inside to the outside, and the washing direction from the outside to the inside, the pipes for supplying purified water to the inlet of the filter cartridges , the filtrate discharge pipe to the consumer, the discharge pipes into the mud flow drain when washing each cartridge, while the dirt discharge pipes into the drain are equipped with shut-off valves, and a device that controls actuation of all shut-off valves of the device, in which, according to a utility model, the device includes a hydraulic accumulator connected to the inner space of the cartridge filter housing through the outlet of the filtrate to the consumer, equipped with a shut-off valve, while the device that controls the sequence of operation of the shut-off valves of the device is made in kind of timer.

The lack of a complex system of pressure sensors, according to the number of filter cartridges that record the pressure difference

the filtrate inside the housing and the pressure of the purified water inside the cartridges, and the shutoff valves on the nozzles for supplying the purified water to the filter cartridges significantly simplifies the design of the claimed utility model.

The presence of a hydraulic accumulator connected to the inner space of the cartridge filter housing ensures the maintenance of the required filtrate level during the cartridge washing process, which eliminates the need for a powerful pump and thus makes it possible to use the device in mobile conditions.

The inventive utility model is shown in figures 1, 2, which shows a General view of the device for water purification and a cross section of the housing of the cartridge filter.

The water purification device comprises a cartridge filter, in the housing 1 of which filter cartridges 2 are fixed in two rows at an angle to each other with the filtering direction from the inside out and the washing direction from the outside to the inside. The device also contains nozzles 3 for supplying purified water to the inlets of filtering cartridges 2, nozzle 4 for discharging the filtrate to the consumer, nozzles 5 for discharging mud flow into the drain when washing each cartridge 2, while nozzle 4 and nozzles 5 are equipped with shut-off valves 6 and 7, the sequence of operation which

regulated by the device, made in the form of a timer 8. The device also includes a hydraulic accumulator 9, connected to the inner space of the housing 1 of the cartridge filter through the pipe 4 of the filtrate outlet to the consumer.

The number of filter cartridges 2 is selected based on the need, but not less than four, to ensure intensive washing of one of them, while the remaining cartridges work in filtration mode.

In this case, when fixing the filter cartridges in the housing 1 of the cartridge filter at an angle to each other in two rows, the following options for the size of the angles are possible:

- the angle size is 90 °. In this case, uniformity of the filtrate pressure on the outer surface of each filter cartridge is achieved, providing uniform cleaning of the pores from the dirt, pushing it inside the cartridge under the wash flow of the liquid to be cleaned into the drain.

- the angle size is less than or more than 90 °. In this case, there is uneven pressure of the filtrate on diametrically opposite sections of the outer surface of each filter cartridge, which leads to uneven cleaning of pores located diametrically opposite in the wall

each filter cartridge, which can lead to incomplete cleaning of the filter channels (pores) of the wall of the cartridge to be cleaned for the time interval cut off by the timer.

Thus, from the considered options, it is most preferable to fasten the filter cartridges in the cartridge filter housing exactly at right angles to each other in two rows, which ensures effective cleaning of the filter cartridges while reducing the time for the next washing of all filter cartridges i.e. stopping the supply of filtrate to the consumer.

For the manufacture of filter cartridges, any materials can be used, but predominantly polymeric, which filter the water through their walls from the inside to the outside, and flushing from the outside to the inside.

A device for water purification works as follows.

After connecting the mobile unit to a power source, which may be, for example, an electric-benzo engine or diesel engine, the water to be cleaned with a pump is fed through nozzles 3 into the inner space of the filter cartridges 2 located in the housing 1, with

closed shut-off valves 7 nozzles 5. During filtration through the walls of the cartridges 2 (from inside to outside), the filtrate is filled with the inner (inter-cartridge) space of the housing 1 and the filtrate is subsequently diverted to the consumer through the nozzle 4. During filtration, clogging (silting) of the filter channels in the cartridge walls 2, causing a decrease in filter performance and the need to transfer the operation of the device to the washing mode, which is carried out alternately for all filter cartridges.

At the same time, according to the signal of timer 8, the shut-off valve 6 of the pipe 4 of the filtrate outlet is closed to the consumer, which leads to filling of the accumulator pear 9 and increasing the pressure of the filtrate in the filter housing 1. After that, the shut-off valve 7 of the dirt discharge pipe 5 is opened into the drainage of the first cartridge 2 to be flushed, and the flow of purified water to the inlet of this and other cartridges 2 does not stop, while the remaining filter cartridges 2 continue to work in the filtering mode. Under the influence of the pressure of the filtrate, located in the housing 1, on the outer surface of the wall of the washable cartridge 2, and the vacuum created by the flow of purified water supplied to the inner space

of this cartridge, contaminants from the filtration channels of its wall are squeezed onto its inner surface, from where they are continuously washed off into the drainage by the flow of purified water flowing inside the cartridge. In this case, the smoothing of the rate of decrease in the level of the filtrate and the magnitude of its pressure is ensured by the expenditure of the filtrate previously accumulated in the pear of the battery 9. After cleaning the cartridge 2 by the signal of the timer 8, the shut-off valve 7 fixing the end of the cleaning is closed and the cartridge 2 is switched on in the filtration mode. After restoring the level of the filtrate in the housing 1 and filling the bulb of the accumulator 9, by the signal of the timer 8, the shut-off valve 7 of the adjacent filter cartridge 2 is opened, and the process of washing it and the other filter cartridges in the filter housing 1 is carried out similarly as described above for the first cartridge 2 After cleaning the last cartridge and filling the casing 1 with filtrate, at the signal of the timer 8, the shut-off valve 6 on the pipe 4 opens, and the filtrate starts to flow back to the consumer in the required volume.

The simplicity of the design of the device for water purification while providing more efficient washing of filter cartridges, as well as the possibility of using it as in

stationary and mobile conditions determines the advantage of the claimed utility model in comparison with the prototype.

Claims (1)

A water purification device comprising a cartridge filter, in the housing of which filter cartridges are fixed in two rows at an angle to each other with a filtering direction from the inside out, and a flushing direction from the outside to the inside, pipes for supplying purified water to the inlet of the filtering cartridges, a filtrate discharge pipe to the consumer, as well as discharge pipes into the drainage of the mud stream during flushing of each cartridge, equipped with shut-off valves, and a device that controls the sequence of operation of the shut-off valves of the device, characterized in that the device includes a hydraulic accumulator connected to the inner space of the cartridge filter housing through the filtrate discharge pipe to the consumer, equipped with a shut-off valve, while the device that controls the sequence of operation of the shut-off valves of the device is made in the form of a timer.

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