RU154658U1 - DEVICE FOR CLEANING AND DISPOSAL OF WASTE SMOKE GASES - Google Patents

Abstract

A device for cleaning and utilizing exhaust flue gases, comprising a housing, an inlet gas duct, an outlet pipe, a precipitation chamber, characterized in that the precipitation chamber is 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 foam substance, and dividing walls, immersed in the water of the precipitation chamber.

Description

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

A known water trap (see patent application RU 2001126291, B01D 47/02, published July 20, 2003) includes two conjugate rectangular gas ducts forming a chamber, between which a partition is installed with an opening in the lower part of the chamber filled with water through which the smoke stream passes, perforated pipe is installed in the upper part of the partition.

The closest technical solution is (US Pat. RU 2388518, B01D 47/02, published May 10, 2010), a device for cleaning and utilizing exhaust flue gases containing an inlet pipe, a housing, an outlet pipe, a precipitation chamber, characterized in that the precipitation chamber is provided a dividing wall immersed in the chamber, the lower part of the dividing wall immersed in the chamber having longitudinal grooves with a constant pitch, and the inlet gas duct of the device is equipped with a water sprinkler in the form of a collector with vortex nozzles, water into which under pressure it enters through a pipeline from a screw pump connected to a tank for collecting water coming from the overflow window of the precipitation chamber with an adjustable gate through a drain pipe, and a heat exchanger in the form of a tubular coil is placed in the lower part of the chamber, and the device is equipped with a tangential moisture separator input.

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 lies in the fact that the device for cleaning and disposal of exhaust flue gases, comprising a housing, an inlet duct, an outlet pipe, a precipitation chamber, while the precipitation chamber is equipped with several partitions, the lower part of which is immersed in the water of the precipitation chamber, between which are installed manifolds with nozzles for spraying liquid with a foam-active substance, and separation walls, immersed in the water of the precipitation chamber.

The technical result consists in increasing the efficiency of flue gas cleaning by increasing their contact time with the foam, by passing through several partitions with additional foam irrigation after each of them.

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

A device for cleaning and disposal of exhaust flue gases contains a precipitation chamber 1, filled with water to the level of the partition walls 2, immersed in the chamber 1. The lower part of the partition walls 2, immersed in the chamber 1, has longitudinal grooves with a constant pitch. The inlet gas duct 3 of the device is equipped with a water sprinkler in the form of a collector 4 with centrifugal nozzles 5, water into which is supplied under pressure through a pipe 6 from a screw pump 7 connected to a tank 8 for collecting water coming from the overflow window of the precipitation chamber 1 with an adjustable gate (on the drawing is not shown) through the drain pipe 9. Moreover, in the tank 8 for collecting water add foam substances that contribute to the formation of foam and more intensive capture of ash particles. In the lower part of the chamber 1 is placed a heat exchanger in the form of a tubular coil 10 having an inlet 11 for cold water and an outlet 12 for hot water. The smoke exhaust 13 is used to pump purified gas from the nozzle 14 of the precipitation chamber 1 through the duct 15 and supply it through the duct 16 to the moisture separator 17 with the tangential inlet 18, and then through the duct 19 to the chimney 20, which is made of plastic, since the temperature of the exhaust flue gases is about 80-90 ° C.

To increase the efficiency of trapping the smallest particles of ash in a precipitation chamber 1 filled with water, collectors 21 with nozzles 22 for spraying liquid are installed between each partition 2. 23 - dividing walls, immersed in the water of the precipitation chamber 1.

A device for cleaning and disposal of flue gases works as follows.

Hot gases contaminated with ash particles enter the chamber 1 with several partitions 2 and 23 through the inlet duct 3, which is equipped with a water sprinkler in the form of a collector 4 with centrifugal nozzles 5, into which water is supplied under pressure through a pipe 6 from a screw pump 7 connected to the tank 8 for collecting water coming from an overflow window with an adjustable gate (not shown) through a drain pipe 9. Through a pipe 6, water also flows into the collectors 21 equipped with nozzles 22. Moreover, foam active water is added to the tank 8 for collecting water ETS, which promote the formation of foam and more intensive capture ash particles. The smoke exhaust 13 is used to pump purified gas from the pipe 14 through the duct 15 and supply it through the duct 16 to the moisture separator 17 with a tangential inlet 18, and then through the duct 19 to the chimney 20.

Claims (1)

A device for cleaning and utilizing exhaust flue gases, comprising a housing, an inlet gas duct, an outlet pipe, a precipitation chamber, characterized in that the precipitation chamber is 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 foam substance, and dividing walls, immersed in the water of the precipitation chamber.

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