Double-bin central tube device with central row function applicable to ion exchange column mixed bed

Abstract

The invention provides a double-bin central tube device with a central row function applicable to an ion exchange column mixed bed, comprising an upper distributor, a lower distributor and a double-bin central tube, wherein the upper end of the double-bin central tube is connected with the upper distributor; the lower end of the double-bin central tube is connected with the lower distributor; thedouble-bin central tube comprises an inner tube, an outer tube and two diaphragms separating the interlayer space between the inner tube and the outer tube into a left bin and a right bin; the upper ends of the two diaphragms are provided with left bin top cover plates; the lower ends of the two diaphragms are provided with right bin bottom cover plates; the right bin top part is communicated with the upper distributor; the left bin bottom part is communicated with the lower distributor; a central plug is arranged in the middle of the inner tube body; the inner tube body is provided with an upper communication opening and a lower communication opening which are respectively arranged above and below the central plug; the upper communication opening is communicated with the left bin; and the lower communication opening is communicated with the right bin. A central row device does not need to be arranged on an ion exchange column mixed bed provided with the device, thus avoiding punchingon the ion exchange column body, improving pressure-bearing strength of the exchange column body and prolonging service life of ion exchange column.

Description

technical field [0001] The invention relates to a center tube of a water treatment ion exchange column, in particular to a double chamber center tube device with a middle row function which is suitable for a mixed bed of an ion exchange column. Background technique [0002] Ion exchange column is a commonly used purification equipment in the field of water treatment. It is mainly used to soften water and remove electrolyte ions in water. It is an essential equipment for preparing high-purity water. / The cation exchange resin is exchanged with the ions in the raw water to achieve the purpose of removing various ions in the raw water. Therefore, after a period of use, the resin in the exchange column needs to be regenerated or replaced. The ion exchange column mixed bed widely used in the prior art is to pack the anion / cation exchange resin in the same ion exchange column according to a certain mixing ratio. Generally, the anion resin is located in the upper part of the exch...

AI Technical Summary

Problems solved by technology

Since the ion exchange column used for water treatment is generally a plexiglass product, drilling holes on the column greatly destroys the bearing strength of the plexiglass column, so that the plexiglass column is often scrapped due to damage at the hole.

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