SU1386231A1 - Filter for purifying water - Google Patents

Abstract

The invention relates to water-preparation installations for the preliminary purification of additional water and allows an increase in the productivity of the installation by increasing the filtering surface in a predetermined volume by the filtering charge. The filter includes a housing 1, filled with a fully filtering load 2, distribution means in the form of a collector 3, combining inclined perforated tubes 4, collecting means in the inside of the collector 5 with inclined perforated tubes 6, capacity 7. To housing 1 is connected through a conical tube 8 and a valve 9 a tank 7 for expanding and flushing the filter charge. The container 7 contains a pipe 10 for discharging industrial water and a pipe 11 for hydraulic loading of the filtering material. During filtration, through the collector 3 and the inclined perforated tubes 4, the treated water in the squeezed layer passes through the granular filter charge 2, then enters the inclined perforated tubes 6 of the collector 5 and goes to the pot. 1 il. with S WITH // 30 55 Yu: o

Description

The invention relates to power engineering and is intended for use in water treatment plants of thermal power plants, nuclear power plants and industrial power engineering, and more specifically in the pretreatment of additional water from mechanical impurities, as well as in counter ionization.

The aim of the invention is to increase productivity by increasing the filtration surface in a given amount of filter loading.

The drawing shows a filter for water purification, a cut.

The filter includes a housing 1, a filled filtering load 2, distributing distribution means in the form of a collector 3, combining inclined perforated tubes 4 forming the lower conical surface, and collecting means in the form of a collar. Lecturer 5, combining inclined perforated tubes 6, forming the upper conical surface, with the perforated tubes of both devices located in parallel, and collectors 3 and 5 - at the walls of the housing; a tank 7 for expanding and flushing the filter charge, a conical nozzle 8, a valve 9, nozzles for discharging the washing water 10 and for hydrating the filter material 11.

The filter works as follows

When the valve 9 is closed. Through the collector 3 and inclined perforated tubes 4 of the dispensing distributor, the treated water is fed into the granular Filter Loading 2 (anthracite or quartz sand when processing water from mechanical impurities, ionizing with countercurrent ionization), filling the entire housing 1 and conical the pipe 8, which is in the clamped state, passes through the layer of filter loading and enters the inclined perforated tubes 6 and the collector 5 of the modular distributor, from The treated water is then discharged to the consumer.

After depletion of the filtering capacity of the granular load, remove the filter to regeneration. When the valve is closed, the clarified wash water is supplied to the treated water outlet line and the open valve 9

in the same direction as the treated, while the filter loading expands, filling the tank

7 for expansion and flushing, and for a period of time, the flushing is suspended. Flushing water, a passage through a fluidized bed, carries away light (compared to the filter bed) mechanical impurities, which, together with the fine fraction, are discharged through pipe 10.

At the end of the wash filtering

the load is smoothly deposited and, preserving the order established during the flushing (monotonous decrease from bottom to top by grain size), returns to the initial (initial)

position.

In this case, the fulfillment of the pipe 8 with a co-one allows one to fill the filter without space free from loading and to sort the small

fractions, excluding their contact with filtering elements of the collecting switchgear and their clogging.

in the case of using the proposed filter for countercurrent ionization after the deposition of the filter charge (ion exchanger), the reagent is fed through the collector 5 and inclined

the perforated tubes 6, passes through the ion exchanger layer in the direction opposite to the filtration and through the inclined perforated tubes 4 and the collector 3 is led out into the drainage. AT

in the same direction, the ion exchanger is washed after regeneration.

With a decrease in the volume of loading due to the grinding of the grains and removal during washing, the loading is made

filter loading through the pipe 11 during its washing.

Claims (1)

Invention Formula A water purification filter, comprising a housing, filled with a granular filter charge, distribution and collection means, installed respectively in the upper and the bottom of the housing, and a container for expanding and flushing the filter loading, attached to the housing through a nozzle and a gate, characterized in that 31386231 productivity, distribution of perforated tubes, overlap and assembly means taken out at the same angle to the hydraulics in the form of a united collective-plane.