RU2660844C1 - Separator for gas purification from dripping liquid - Google Patents

Abstract

FIELD: technological processes.

SUBSTANCE: invention relates to devices for capture of dripping liquid from gas flow and can be used in various industries. Separator for gas purification from dripping liquid contains a vertical body with outlet and draw-off nozzle, as well as device with a tangential nozzle of gas with an inlet, and a ring separation unit at the top of the separator. Device for tangential nozzle of gas is located in axial area of lower part of the separator, includes a cylindrical partition forming water seal at the bottom of the separator, which is connected to ring partition located in the middle of the separator and made with an outer solid part and inner perforated part on which ring coalesce unit with a cover is installed as separation unit.

EFFECT: technical result is decrease of metal consumption and increase in separation degree.

3 cl, 1 dwg

Description

The invention relates to a device for collecting droplet liquid and solids from a gas stream and can be used in various industries.

Known highly effective liquid-gas separator "STsV-7" [RU 2320395, IPC B01D 45/12, publ. March 27, 2008], including a vertical cylindrical body, a horizontal cover, inlet, outlet and drain pipes, a deflector installed in the direction of rotation of the gas-liquid flow, a vertical separation package with a flat bottom, consisting of flat curved separation plates.

A disadvantage of the known separator is the low degree of separation of the dropping liquid due to the uneven loading of the plates of the separation unit in height and in circumference.

Closest to the claimed invention is a vortex gas-dynamic separator [RU 58380, IPC B01D 45/12, publ. November 27, 2006], including a vertical cylindrical body with outlet and drain pipes, as well as a tangential gas inlet device with an inlet pipe, a wall deflector, a horizontal partition and an annular separation element (block) installed in the upper part of the separator and consisting of curved separation plates.

The disadvantages of this separator are the high metal consumption due to the near-wall placement of the deflector, which leads to an increase in the diameter, wall thickness and mass of the separator, as well as a low degree of separation of droplet liquid due to the breakdown of part of the liquid film from the separation elements into the stream of purified gas.

The objective of the invention is to reduce the metal consumption and increase the degree of separation.

The technical result is to reduce the metal content of the separator and increase the degree of separation due to the placement in the axial region of the lower part of the separator of a tangential gas inlet device adjacent to the bottom of the annular partition with an outer solid part and an inner perforated part on which an annular coalescing block with a lid is installed.

The specified technical result is achieved by the fact that in the proposed separator, including a vertical casing with outlet and drain pipes, as well as with a tangential gas inlet device with an inlet pipe, and an annular separation unit in the upper part of the separator, the feature is that the tangential gas inlet device placed in the axial region of the lower part of the separator, includes a cylindrical partition forming a hydraulic shutter at the bottom of the separator, which is connected to the annular partition, Assumption in the middle portion of the separator and provided with an external solid portion and a perforated inner portion, in which separation unit as an annular coalescing unit with a lid.

To prevent liquid overflow on the wall of the cylindrical partition into the coalescing block inside the cylindrical partition between the coalescing block and the inlet pipe can be installed ring chipper. To improve separation along the inner generatrix of the coalescing block, separation plates can be installed flat, concave to the direction of rotation of the gas stream or concave-convex in shape. To reduce the metal consumption, the lower part of the housing may have a reduced diameter.

The coalescing unit may be made, for example, of a metal mesh. As the remaining elements of the separator, any devices of the corresponding purpose known from the prior art can be installed.

Placing a tangential gas inlet device with a cylindrical baffle in the axial region of the separator, forming a hydraulic shutter at the bottom of the separator, reduces the separator metal consumption by eliminating the wall deflector and increases the degree of separation due to the movement of the gas being cleaned in the coalescing block in the radial direction from the axis to the wall with a decrease speed, as well as by preventing the possibility of getting purified gas from the input device into the stream of purified gas, bypassing the coalescing Locos. The installation of a coalescing unit as a separation unit increases the degree of separation due to the absence of the phenomenon of a breakdown of a part of the liquid film from the separation elements and additional coalescence gas purification.

The separator shown in the drawing includes a housing 1 with an outlet 2 and a drain pipe 3, a tangential input device with an inlet pipe 4 and a cylindrical partition 5, forming a hydraulic shutter at the bottom of the separator with a phase separation surface 6, which is connected to an annular partition made with an external the solid part 7 and the inner perforated part 8, on which the annular coalescing unit 9 is installed, equipped with a cover 10. Inside the cylindrical partition 5 above the pipe 4 between and below the annular partition can be installed annular liquid chipper 11.

During the operation of the separator, the gas to be cleaned is supplied through a nozzle 4 to a tangential input device, where in the field of centrifugal forces, the largest drops of liquid are separated, which are directed along the inner surface of the partition 5 to the lower part of the separator, where the liquid forms an interface 6 and merges along the nozzle 3. The gas stream with a finely divided dropping liquid from the inner part of the cylindrical partition enters for additional separation in the coalescing unit 9, while the liquid deposited on the coalescing flowing through the perforated part 8 of the annular partition to the lower part of the separator, and the cleaned gas is discharged first through the wall collector and then through the outlet pipe 2. A hydraulic shutter formed by the partition 5 prevents the cleaned gas from entering the stream of purified gas, bypassing the coalescing block 9. In the case of installation, the chipper 11 prevents the liquid from being thrown along the inner wall of the partition 5 into the coalescing block 9.

Thus, the proposed separator can reduce metal consumption, increase the degree of separation and can be used in industry.

Claims (3)

1. A separator for cleaning gas from a dropping liquid, comprising a vertical housing with an outlet and drain nozzles, as well as a tangential gas inlet device with an inlet nozzle, and an annular separation unit in the upper part of the separator, characterized in that the tangential gas inlet device is placed in the axial the area of the lower part of the separator, includes a cylindrical partition forming a hydraulic shutter at the bottom of the separator, which is connected to an annular partition located in the middle of the separator and filled with an outer solid part and an inner perforated part, on which an annular coalescing block with a cover is installed as a separation unit. 2. The separator according to claim 1, characterized in that an annular chipper is installed inside the cylindrical partition between the coalescing unit and the inlet pipe. 3. The separator according to claim 1, characterized in that separation plates are installed along the inner generatrix of the coalescing block, flat, concave to the direction of rotation of the gas stream or concave-convex shape.

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