SU1741863A1 - Device for washing sedimentation layers - Google Patents

Abstract

Use: for washing a layer of sediment on a filtering surface, for example, saturation precipitation on vacuum filters in the sugar industry. SUMMARY OF THE INVENTION: The device includes a housing 1 with a side nozzle 2, a vortex chamber 3 in the form of a sleeve with tangential channels 5 and a cylindrical rod 9 placed on the upper lid of the housing, mounted to adjust its position along the axis of the vortex chamber. The vortex camera is fixed in its working position with the help of a fixture. When the sharp edges 10 flow around the central rod 9, cavitational cavities form in the fluid. When it enters the pressure zone at the exit of the nozzle 4, the cavitation bubbles collapse to form high-speed cumulative microstructures, which ensure uniform fine disintegration of the cone-shaped film of liquid exiting the nozzle 4. 1 Il.

Description

Isolation refers to filtration, in particular, can be used as a device for washing the sediment layer on the filtering surface (for example, saturation precipitation on vacuum filters in the sugar industry).

The aim of the invention is to simplify the assembly and disassembly of the device.

This goal is achieved by the fact that in the device for washing the sediment layer, comprising a housing, a lateral branch pipe, a vortex chamber in the form of a sleeve with tangential channels and a cylindrical rod with sharp edges coupled to a cylindrical cavity of the vortex chamber, a cylindrical rod is placed on the upper lid of the housing with the ability to adjust its position along the axis of the vortex chamber, which is fixed in the working position with the help of the fixture.

The drawing shows the proposed device for washing the sediment layer, longitudinal section.

The proposed device consists of a housing 1, a side nozzle 2 and a vortex chamber 3. Moreover, on the vortex chamber 3 there is a central nozzle A and tangential output channels 5 in the upper part of the vortex chamber.

Swirl chamber 3 is installed in the working position in the housing 1 by means of a fixing device: a cap nut 6 and a seal 7. On the top cover

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body (on the opposite side of the vortex chamber 3) is mounted on the thread 8 with the ability to adjust the position along the axis of the device cylindrical rod 9 with sharp edges 10. The rod 9 is conjugate to the cylindrical cavity 11 of the vortex chamber 3. The device case 1, rod 9 and vortex chamber 3 form an annular cavity 12. A seal 13 is provided for sealing the adjusting rod 9.

The proposed device works as follows.

The pressurized fluid enters the housing 1 through the side nozzle 2. Then the washing fluid enters through the tangential inlet channels 5 into the vortex chamber 3, where the flow is twisted and sprayed through the cone 4. At the same time, large solids are separated from the main fluid flow in the annular cavity 12. When the sharp edges 10 flow around the central shock 9, cavitation cavities are formed in the fluid flow, the tail parts of which oscillate, disintegrating into many small cavitation bubbles. In the zone of elevated pressure and at the exit of the nozzle 4, cavitation bubbles collapse to form high-speed cumulative microstructures. The cumulative impact of microstructures ensures uniform fine dispersed fragmentation of a cone-shaped film of liquid exiting the nozzle 4. Cavities on sharp edges 10 cause deformation of the swirling flow in the vortex chamber 3, more a uniform filling of the cylindrical cavity 11, as well as a more uniform filling with spray liquid droplets. The adjustment rod 9 allows you to change

the cross-sectional area of the input tangential channels 5, which makes it possible to periodically clean the input channels 5 directly when the device is operating on the filter.

Ex 1 the need to clean the internal cavities 12 of the device or mechanical impurities. Disassembling of the device is easily accomplished by removing the cap nut and the vortex chamber 3.

Such a device provides self-cleaning of solids from the washing liquid, as well as ease of assembly and disassembly, if it is necessary to clean the casing from storage, without stopping the entire filter.

Claims (1)

Apparatus of the Invention A device for washing a sediment layer, comprising a housing, a side bar, a vortex chamber in the form of a sleeve with tangential channels and a cylindrical OJTOK with sharp edges, coupled with a cytrich cavity of the vortex chamber adopted from the opposite al body side, characterized in that, in order to simplify the assembly and disassembly of the device, a cylindrical rod is placed on the upper body cover with the possibility of adjusting the position along the axis of the vortex chamber fixed in a working position with a fixture.