RU2004304C1 - Gear for purification of drinkable water - Google Patents

Abstract

The inventive device consists of a cylindrical body with end caps and supply and outlet pipes, located along the axis of the housing of the membrane roll element, a filter element for pre-treatment and a cartridge for correcting the salt composition of water, the filter element for pre-treatment is made cylindrical and located coaxially outside membrane element with the formation of an annular chamber between it and the inner wall of the housing. In the annular chamber, there is a turbulizer of purified water, made in the form of a knotless mesh, the thickness of which is equal to the height of the chamber, and the latter was connected to the atmosphere via a vent ml

Description

The invention relates to water purification by ultrafiltration, nanofiltration and reverse osmosis and can be used in drinking water supply.

A prior art apparatus for purifying water by ultrafiltration and reverse osmosis is adopted.

A disadvantage of the known apparatus is its short service life.

The aim of the invention is to increase the service life of the device, ensuring compactness, reducing material consumption.

The drawing shows a device for purifying drinking water.

The device consists of a cylindrical body 1, end caps 2 and 3, nozzles for supplying source water 4, drainage of filtrate 5 and concentrate 6, a filter element 7 of the preliminary cleaning, having the form of a hollow cylinder, a membrane roll element 8 with a sealing sleeve 9, a cartridge 10, correcting salt composition of water.

The outlet pipe of the cartridge 10 is inserted into the socket of the cover 3 and connected to the pipe 5 of the filtrate outlet. The end of the filter discharge tube of the membrane roll element 8, located on the side of the sealing sleeve 9, is connected to the inlet of the cartridge 10, the other end of the filter discharge tube of the membrane roll element 8 is inserted into the socket of the cover 2.

On the pipe 11 connected to the cover 3, the filter element 7 of the preliminary cleaning is installed coaxially outside the membrane roll element 8.

In the annular chamber formed between the filter element 7 and the inner wall of the housing 1 and connected to the atmosphere by means of a valve 12, there is a turbulizer 13 of purified water, made in the form of a knotless mesh, the thickness of which is equal to the height of the chamber.

O-rings 14-19 serve to seal the connecting parts of the device.

To control the flow rate of the filtrate and concentrate, the device is equipped with a needle regulator 20.

Brackets 21, 22 are designed to secure the device,

The device operates as follows. Close valve 12 and open

the needle regulator 20. The source water under pressure enters through the pipe 4 into the annular chamber formed by the filter element 7 pre-treatment and

the inner wall of the housing 1, in which the turbulator 13 is mounted, made in the form of a knotless mesh. The source water passes through the pre-filter element 7 and is filtered from particles

pollution clogging the membrane of the roll element 8, which leads to an increase in the resource of his work.

Water passing through the pre-filter element 7 enters

membrane roll element 8 in the axial direction. Part of the water moving along the intermembrane channels of the roll element 8 forms a concentrate which is discharged from the device through the pipe 6.

Another part of the water passing through the membrane of the roll element 8 forms a filtrate, which enters the cartridge 10 through the filtrate discharge tube and, after adjusting the salt composition, is discharged from the device through the pipe 5.

In order to remove contaminants from the surface of the pre-filter element 7, it is periodically washed with a stream of feed water. For this

close the needle regulator 20 and open the valve 12. In this case, due to the presence in the annular chamber of a meshless mesh, the thickness of which is equal to the height of the chamber, the flow moving under pressure of the original

water is turbulized throughout the entire height of the chamber and intensively rinses off the dirt from the pre-filter element 7, which leads to the restoration of its performance and increased resource

work.

The restoration of the performance of the pre-filter element due to the highly efficient flow-through washing with a turbulent flow of water allows to increase the life of the device.

The compactness of the device and the reduction in material consumption are achieved due to the fact that the prefilter filter element is cylindrical and located coaxially outside the membrane element.

(56} USSR author's certificate No. 1584984, class B 01 D 61/00, 1990.

Claims (1)

SUMMARY OF THE INVENTION A DEVICE FOR PURIFICATION OF DRINKING WATER, comprising a cylindrical body with end caps and inlet and outlet nozzles, a membrane roll element located along the axis of the housing, a pre-filter element and a cartridge for correcting the saline composition of the water, characterized in that the filter element for preliminary cleaning it is made cylindrical and located coaxially outside the membrane element with the formation of an annular chamber between it and the inner wall of the housing, while in the annular chamber there is a turbulizer of purified water, made in the form of a knotless mesh, the thickness of which is equal to the height of the chamber, and with the atmosphere through the vent. P nineteen