SU1212485A1 - Self-cleaning filter - Google Patents

Description

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The invention relates to filtering and is intended for the purification of liquids, in particular oils, in systems of internal combustion engines. 5

The purpose of the invention is to increase the battery life of the filter by increasing the efficiency of regeneration of filter elements.

HS of FIG. t shows a filter, in mode 10 filtering, longitudinal section; Fig 2 - filter in regeneration mode, longitudinal section.

Filter b contains Kopftyc with several filter chambers 1c; filter elements 2, nozzle 3. supply, output 4 working. ; fluids and drainage 5 of contamination with kalapan 6, accumulator 7 of washing agent, distribution mechanism 8 for the introduction of filter chambers from the filtering cycle, g shaped as a sleeve with a rotary mechanism 9 and radial openings Y. The accumulator 7 of washing agent has a central a vertical cylinder 11, the inner diameter of which is equal to the outer diameter of the sleeve., in the form of which a distribution mechanism B with radial openings (windows) 12 and nozzles 13 of the filtrate supply with shut-off valve 14 and patr bkami 15 for supplying compressed air to the valve 16. The filter cavity 17 there are for the passage of the contaminated fluid and the working chamber 18 - for purified. The cavity 17 of the contaminated fluid communicates with the nozzle 3 through the cavity 19.

The self-cleaning filter works as follows.

In the filtering mode, the distribution mechanism 8 occupies a position in which the aperture 10 and the orifice 12 of the cylinder 11 do not coincide (Fig. 1). lichivaet battery life

The filtered medium is supplied through the filter cartridge, the chop 3 of the inlet, from where through the cavities 1 9 and 17 passes into the filter chamber 1, where it is cleaned of contaminants, the passage through the filter elements 2. Then the purified liquid through the cavity 18, skirting the distribution mechanism 8, removes is from

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The results will create a significant resistance; according to the sensor signal (differential pressure gauge, sensors and filter control unit are not shown), the rotary mechanism 9 starts rotating the distributor mechanism 8 until the distributing mechanism 8 reaches the nearest filter chamber. In this way, it disconnects it from the filtering cycle, and the holes 10 pacq of the separation mechanism 8 and the bore 12 of the cylinder 11 coincide (Fig. 2). 6 and 16, respectively, the descent of the pollution and the supply of compressed air

20 ha. After the valve is opened, the 16lian equilibrium flow of compressed air that is achieved by positioning the valve 15 will hit the filter in the accumulator 7, moving

25 it, the same way to form the flushing agent — a two-phase liquid-air mixture. After formation of the washing agent in the accumulator 7, the 7 is filled, it is forced out through the combined holes 12 and 10, the cavity of the distribution mechanism 8 and the cavity 18 into the filter chamber through the filter element 2 in the filtering direction, thereby ensuring removal of the load. The cleaning of filter elements 2 is also known. At the beginning of the regeneration process, the filtrate passes through the filter element 2, located in the filter cavity 18, then the two-phase liquid-air mixture and, in the last turn, compressed air. This provides a three-phase regeneration mode, which ultimately improves the quality of regeneration and

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After removal of contaminants from the filtering elements 2, the contaminants are removed from the filter through the cavity 17, the nozzle of contaminants 5 is opened valve 6 into the front tank. After the end of the regeneration process, which is determined by the time-based time sensor of the Regen 55 radio, the valves 16 and 6 are closed, the valve 14 of the nozzle 13 | supplying the accumulator 7 to the accumulator is opened |

filter through the outlet nozzle. In this case, the battery 7 of the washing agent is filled with a filtrate. , When particles are trapped on the surface of filter elements 2

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The knowledge will create a significant internal resistance, according to the sensor signal (differential pressure gauge, sensors and filter control unit not shown), the rotary mechanism 9 starts to rotate the distribution mechanism 8 until the distribution mechanism 8 reaches the nearest filter chamber. In this way, it disconnects it from the filtering cycle, and the holes 10 pacqpe-divide mechanism 8 and the holes 12 of the cylinder 11 are the same (Fig. 2). After that, the sensor mechanism turns off the rotary mechanism 9 and the rotation of the distribution mechanism 8 stops, valves 6 and 16 are turned off, respectively, the release of contamination and supply of compressed air. After opening the valve 16lian- the flow of compressed air is reached, which is achieved by positioning the pipe 15, will hit the filter in the battery 7, moves

25 it, the same way to form the flushing agent — a two-phase liquid-air mixture. After the washing agent is formed in the accumulator 7, its displacement begins through the combined holes 12 and 10, the cavity of the distribution mechanism 8 and the cavity 18 into the filter chamber 1 through the filter element 2 in the reverse filtration direction, thereby ensuring the removal of contaminants and cleaning filter elements 2. At the same time, at the beginning of the regeneration process, a filtrate passes through the filter elements 2 located in the filter cavity 18, then a two-phase liquid-air mixture and, last of all, a compressed air. This ensures a three-phase regeneration mode, which, ultimately, improves the quality of regeneration and increases

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After removal of contaminants from the filtering elements 2, the contaminants are removed from the filter through the cavity 17, the nozzle of contaminants 5 and the open valve 6 into the front tank. After the completion of the regeneration process, which is determined by a time-based regeneration time sensor, the valves 16 and 6 are closed, and the valve 14 opens 13 connecting the filtrate accumulator 7 to the filter and the filter /

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Noah camera 1 filtrate. After it, the rotation to the next chamber starts, the filling of xaijiepa 1 is ready for operation. All actions are repeated. In this way, the distribution mechanism 8, in turn, cleans all the chambers.

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Compiler I.Dybovska Editor P.Kossey Tehred A.Ach Proofreader M.Demchik

Order 668/8 Circulation 663 Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

FIG. Z

Claims (1)

A SELF-CLEANING FILTER, comprising a housing with several filter chambers placed on it with filter elements, nozzles for supplying liquid, extracting filtrate and discharging contaminants, a flushing agent accumulator, a rotary distribution mechanism made in the form of a sleeve with radial holes, located in the cavity of the flushing agent accumulator and dividing the filter housing on the cavity of the purified and untreated liquid, characterized in that, in order to increase the battery life of the filter by increasing the efficiency of the regeneration of the filter elements, the filter is equipped with longitudinal windows, the number of which is equal to the number of filter chambers, a cylinder whose inner diameter is equal to the outer diameter of the sleeve and which is tightly fixed to the ends inside the accumulator of the washing agent coaxially with the sleeve, with each cylinder window being placed opposite the corresponding filter chamber, and the filtrate outlet pipe is in communication with the washing agent accumulator through a non-return valve. >