RU174061U1 - Device for wet cleaning of hot flue gases - Google Patents

Abstract

The utility model relates to ash collectors and can be used in thermal power plants. The technical result of the utility model is to increase the efficiency of cleaning ventilation air. The essence of the utility model is that a device for wet cleaning of hot flue gases, comprising a housing, an inlet pipe, an outlet pipe, precipitation chamber equipped with several partitions, the lower part of which is immersed in water of the precipitation chamber, between which collectors with nozzles for spraying are installed liquids with a foaming substance, and dividing walls immersed in the water of the precipitation chamber, and the inlet pipe has a continuation in the form of a bubbler pipe, the lower part of which is buried in water and has perforation.

Description

The utility model relates to ash collectors and can be used at thermal power plants.

A device for cleaning and disposal of exhaust flue gases (see application for invention RU 2009101012/15, B01D47 / 02, published 05/10/2010), comprising a housing, an inlet pipe, an outlet pipe, a precipitation chamber provided with a separation partition, the lower part of the separation The septum has longitudinal grooves with a constant pitch. The inlet nozzle is equipped with an irrigator made in the form of a collector with vortex nozzles. At the bottom of the chamber is a heat exchanger made in the form of a tubular coil. The device is equipped with a water separator with a tangential input.

The closest technical solution is (US Pat. RU 154658, B01D47 / 02, published August 27, 2015) a device for cleaning and utilizing exhaust flue gases, comprising a housing, an inlet duct, an outlet pipe, a precipitation chamber, while the precipitation chamber is provided with several partitions, the lower some of which are immersed in the water of the precipitation chamber, between which collectors with nozzles for spraying liquid with a foam-active substance are installed, and dividing walls immersed in the water of the precipitation chamber.

However, this device has insufficient efficiency of cleaning ventilation air.

The objective of the utility model is to increase the efficiency of cleaning ventilation air.

The essence of the proposed utility model is that a device for wet cleaning of hot flue gases, comprising a housing, an inlet pipe, an outlet pipe, a precipitation chamber provided with several partitions, the lower part of which is immersed in water of the precipitation chamber, between which collectors with nozzles for spraying are installed liquids with a foaming substance, and dividing walls immersed in the water of the precipitation chamber, and the inlet pipe has a continuation in the form of a bubbler pipe, the lower part which is buried in water and has perforation.

The technical result consists in increasing the efficiency of cleaning hot flue gases by increasing the time and surface of their contact with water, by passing through the lower part of the bubbler pipe with perforation buried in the water.

The essence of the utility model is illustrated by the drawing, which shows a diagram of the device.

A device for wet cleaning of hot flue gases contains an inlet pipe 1 provided with a water sprinkler in the form of a collector 2 with centrifugal nozzles 3. The inlet pipe 1 has a continuation in the form of a bubble pipe 4, the lower part of which is made with perforated sections 5 and buried in the water of the precipitation chamber 6 equipped with several partitions in its upper part 7 and several partitions in its lower part 8, a heat exchanger in the form of a tubular coil 9 having an inlet 10 for cold water and an outlet 11 for hot water s. In the precipitation chamber 6, filled with water, between each partition 7 there are collectors 12 with nozzles 13 for spraying liquid with foam active substances added to the tank for collecting water 14. Water enters the tank 14 from the overflow window of the precipitation chamber with an adjustable gate (not shown shown) through a drain pipe 15. A water collection tank 14 is connected to a screw pump 16, from which water under pressure enters through a pipe 17 to the collectors 2 and 12. The purified gas through the pipe 18 enters the duct 19 and smoke is pumped out by the washer 20 and fed through the duct 21 to the moisture separator 22 with a tangential inlet 23, and then through the duct 24 into the chimney 25.

A device for wet cleaning of hot flue gases works as follows.

Hot gases contaminated with ash particles flow through the inlet pipe 1, equipped with a water sprinkler in the form of a collector 2 with centrifugal nozzles 3, into a bubbler pipe 4 with perforated sections 5, buried in the water of the precipitation chamber 6, equipped with several partitions in its upper part 7 and several partitions in its lower part 8, by a heat exchanger in the form of a tubular coil 9 having an inlet 10 for cold water and an outlet 11 for hot water. In this case, the hot contaminated air stream emerging through the perforated sections 5 interacts with water and is directed through successively located partitions 7 and 8, and the ash particles remain in the volume of water, which through the drain pipe 15 enters the tank 14 from the overflow window of the precipitation chamber 6. The tank 14 add foam substances and supply liquid for spraying to the collectors 12 through nozzles 13. Passing through partitions 7 and 8, the contaminated air stream is simultaneously irrigated by dispersed liquid from nozzles 13. Ba for collecting water 14 is connected to a screw pump 16, from which water under pressure enters through a pipe 17 to the collectors 2 and 12. The purified gas through a pipe 18 enters the duct 19 and is pumped out by a smoke exhauster 20 and is supplied through the duct 21 to the moisture separator 22 with a tangential inlet 23 and then through the duct 24 into the chimney 25.

Claims (1)

A device for wet cleaning of hot flue gases, comprising a housing, an inlet pipe, an outlet pipe, a precipitation chamber provided with several partitions, the lower part of which is immersed in the water of the precipitation chamber, between which collectors with nozzles for spraying liquid with a foam-active substance are installed, and separation walls, immersed in water of the precipitation chamber, characterized in that the inlet pipe has a continuation in the form of a bubbler pipe, the lower part of which is buried in water and has a perforation th.

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