SU1526818A1 - Counter-flow ion exchanger - Google Patents

Abstract

The invention relates to countercurrent ion-exchange filters and allows to improve the reliability and efficiency of the cleaning process. The countercurrent ion-exchange filter contains the main layer 11 and the blocking layer 10 of the ion exchanger on it, on which the blocking means 9 is placed, the bottom 8 and the top 6 drainage-distribution means, as well as the average drainage-distribution means 7, made in the form of a collector 12 and attached to him on the side forming perforated tubes 13 with sleeves 18 and drain caps 19. 2 Il.

Description

one

(21) 4246445 / 24-26

(22) 05/18/87

(46) 12/07/89. Bup. P 45

(71) All-Union Scientific Research and Design Institute of Atomic Power Engineering

(72) D.L. Tsirulnikov, E.B. Yurchevsky, O.P. Akulshin, A.R. Lensky, V.G. Vekshin, A.V. Yakovlev

and L.L. Ostroukhov

(53) 66.067.322 (088.8)

(56) USSR Author's Certificate No. 1196020, cl. On 01 D 23/20, 1984.

USSR author's certificate 1111815. class. B 01 J 49/00, 1984.

(54) COUNTER TURNING IONITE FILTER

(57) The invention relates to anti-tide ion-exchange filters and improves the operation reliability and efficiency of the cleaning process. The ANTI-FLOW IONITE filter contains the main layer 11 and a blocking layer 10 of the ion exchanger located on it, which contains the blocking means 9, the lower 8 and the upper 6 drainage-distributing means, as well as the average drainage-distributing means 7, thickened in the form of a collector 12 and attached to it along the side forming perforated tubes 13 with sleeves 18 and drainage caps 19. 2 Cc. f-ly, 2 ill.

S

cl

The invention relates to the field of water purification technology and water solutions from ion dispersions of the first impurities using ion exchangers and can be used in all branches of the national economy that use ion exchange purification.

The purpose of the invention is to improve reliability and efficiency of the cleaning process.

FIG. 1 shows a filter, a longitudinal section; in fig. 2 shows section A-A in FIG. one.

The countercurrent ion-exchange filter consists of a housing 1, a nozzle 2 for supplying purified water, a nozzle 3 for supplying washing water and discharging the spent reagent, a nozzle 4 for supplying the reagent solution, a nozzle 5 for supplying water for loosening the ion exchanger layer, discharging the waste water, feeding the reagent solution and supplying wash water, the upper 6, middle 7 and lower 8 drainage and distribution means, blocking means 9, placed on the blocking layer 10 of the resin, below which is located the main layer 11 of the resin. The blocking means 9 is made in the form of a collector G2 and attached thereto along side forming tubes 13 with drainage elements 14 and plugged side ends 15. The average drainage distribution means 7 installed above the blocking means 9 are filled in the form of a collector 16 and attached to it lateral forming perforated tubes 17, to the edges of the holes of which are attached the sleeves 18, equipped with drainage caps 19. The latter are located on the border between the main 11 and blocking 10 layers of ion exchanger. The sleeves 18 are placed between the tubes 13 with drainage elements 1.4 of the blocking means 7; A volume of water cushion 20 above the blocking means is provided to allow expansion of the ion exchanger layer when loosening it. The degree of overlap of the filter section with blocking means is 20-80%. The height of the blocking layer of the ion exchanger is 200-500 mm and is limited below by the level of arrangement of the drain caps

The filter provides pipes for entering the original 21 and output about 0

five

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five

0

five

0

five

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five

treated water 22, injecting wash water for loosening both layers of ion exchanger 23 and for loosening the blocking layer of ion exchanger 24, draining contaminated wash water 25, introducing reagent solution for regenerating base layer 26 and blocking layer 27, entering wash water for washing base layer 28 and blocking layer 29, removal of the spent reagent solution and wash water 30.

The filter works as follows.

The filter can be operated both when water passes through the ion exchanger layer from top to bottom, and from bottom to top. When water passes from the top to the bottom, it is fed to the filter through pipe 21 through pipe 2, upper drainage-distributing means 6. Water, passing a water cushion 20, blocking ionite 10 and main 11 layers, through lower drainage-distributing means 8 through the pipe 22 is directed to the next processing stage or to the consumer. With an increase in the concentration of removed ions in the treated water beyond the allowable limit, the filter is turned off for regeneration.

For this, the blocking layer 10 of the ion exchanger is first loosened by supplying the washing water through the pipe 24 to the middle drainage and distribution means 7. The water, having passed the collector 16, the pipes 17, the sleeves 18, the drainage caps 19, flows into the blocking layer. By reducing the blocking layer of the ion exchanger, part of it through the interstices between the tubes 13 of the blocking means 9 is displaced into the volume of the water cushion 20. Water containing contaminants and ion exchangers is removed through the upper drainage-distributing means 6 through the tube 25.

The base layer 11 of the resin exchanger is periodically loosened.

For this, wash water is supplied through pipe 23, pipe 5, lower drainage-distributing means 8. At the end of loosening of the ion exchanger, its regeneration is carried out. The input of the reagent solution for regeneration of the base layer 11 is made through pipe 26, the blocking layer through pipe 27. The generation of the blocking layer is accomplished by alternately feeding the reagent solution through pipe 27 and water through pipe 29, which through pipe 4, collector 12, tube 13, the drainage elements 14 of the blocking means 9 enter the upper part of the blocking layer. The spent reagent solution through the medium drainage tool 7 is removed through pipe 30. After passing the reagent solution, the ion exchanger is cleaned from the reagent residues and the regeneration products by simultaneously introducing the washing water through the pipes 28 and 29. in the same direction as the reagent solution, is drained through pipe 30. At the end of the removal of the filter, the filter is switched on in water purification mode.

,, During the operation of the filter by passing the treated water from the bottom up, it is introduced through pipe 22 through the lower drainage and distribution means into the main layer 11, after which the ionized water through the drain caps 19, sleeves 18, pipes 17, collector 16 medium drainage distributor 7 is discharged to the consumer pipe 30. Ionite is loosened by supplying wash water through pipe 23 and draining contaminated water through pipe 25. The main and blocking layers of ion exchanger are regenerated by feeding reagent solution After passing the reagent solution, the ion exchanger is washed with water introduced through pipe 29 in the same direction as the reagent solution. In this case, source water can be used as wash water, i.e. the water that enters the filter for ionization. The spent reagent solution and the wet-water solution are drained through pipe 26. (After washing is completed, the filter is switched to water purification mode.

The implementation of the blocking means in the form of a collector and attached to it along the side forming tubes

5 o dn

five.

with drainage elements and plugged free ends, allows the reagent solution and washing water to be injected directly into the upper part of the blocking ion exchanger, which improves the efficiency of the cleaning process by increasing the efficiency of regeneration of the blocking layer and reducing the flow of washing water to their own suction due to the reduced duration of washing .

F oor mule invention

Claims (3)

1.A current ion-exchange filter, comprising a housing with nozzles for supplying and discharging water and reagent solution, the main and blocking ion exchanger layers located on it, the last blocking means in the form of the main perforated partition, the lower and upper drainage-distribution means and the average drainage manifold distribution tool and attached to it along the side formers of perforated tubes with holes and blocked free ends, so that, in order to increase the operational reliability and economy of the cleaning process, the average drainage-distributing means are installed above the perforated partition and provided with sleeves attached to the holes of the tubes and located in the openings of the partition, and drainage caps attached to the sleeves and located at the interface between the main and blocking layers. 2. Filter pop. 1, characterized in that it is provided with an additional perforated partition mounted at a distance from the main and having coaxial from the last hole. 3. The filter according to claim 1, characterized in that the nozzles for supplying and discharging the reagent are connected to the housing between the main and additional partitions. C) ig.1