KR200479610Y1 - Plume Removal Equipment Using Exhaust Gas - Google Patents

Abstract

This design eliminates the plume generated during the process of discharging the exhaust gas to the chimney of the ship. The exhaust gas is cooled down to a temperature below the dew point and discharged into the form of a white mist. The present invention relates to a plume removing apparatus using an exhaust gas which can remove sulfur oxides and plumes contained in exhaust gas by a seawater scrubber, And an exhaust gas supply line for supplying exhaust gas to the exhaust gas supply pipe and a dummy room diffuser, wherein the dummy room diffuser is provided with an exhaust gas circulating line for exhausting the exhaust gas as a heat source .
According to the flume removing apparatus using exhaust gas according to the embodiment of the present invention, since the exhaust gas circulated to the diffuser diffuser is higher in temperature than the steam temperature of the conventional steam heater, the flume removing effect is superior to the conventional one, Therefore, it is possible to save space and reduce equipment purchase and installation cost.
Also. It does not require additional boiler capacity to drive the steam heater, so it can reduce the boiler capacity.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a plume removing apparatus using exhaust gas,

This design eliminates the plume generated during the process of discharging the exhaust gas to the chimney of the ship. The exhaust gas is cooled down to a temperature below the dew point and discharged into the form of a white mist. And more particularly, to a flume removing apparatus using exhaust gas without using a separate steam heater in driving a scrubber in a plume regulating region, de-plume diffuse by introducing a high-temperature exhaust gas directly into the plume diffuser.

Today, industrial development and economic growth are benefiting people, but environmental problems are causing many problems. Among them, the pollution problem caused by the transportation means is serious, and not only the pollutants generated in the automobile on the land but also the pollution caused by the ship in the sea are getting serious. In recent years, as these problems have been seriously discussed globally, environmental regulations on ships have been significantly strengthened due to measures against pollutants occurring at sea. Since vessels will pass through the world's oceans for international trade and exchange without resorting to their own territorial waters, they will only be able to fly if they comply with international environmental regulations.

Recently, as regulations for environmental pollution have been strengthened globally, measures have been introduced to regulate air pollutants emitted from the ocean. The International Maritime Organization (IMO) enacted and adopted a new convention (MARPOL 73/78 Annex VI) to regulate the release of air pollutants from ships at the 3rd MP Conference held on September 26, 1997 at the IMO headquarters in London.

The Convention has adopted regulations on the quality of ozone depleting substances, oxides of nitrogen, oxides of sulfur, oxides of volatile organic compounds, emissions of on board ships, storage facilities and quality of fuel oil from vessels. As the requirements of the Convention have been met, MARPOL73 / 78 Annex VI became effective on the 19th.

The deliberate release of Halon is prohibited and the installation of fire extinguishers containing Halon is prohibited on 1 January 2020. Deliberate release of refrigerants (CFCs) and other ozone-depleting substances is prohibited and the installation of devices containing this substance after 1 January 2020 is prohibited. Sulfur oxides (SOx) and nitrogen In order to reduce the emission of oxides (NOx), it was obliged to regulate the fuel oil of high sulfur content and to use the engine that satisfies the emission limit of nitrogen oxides.

Methods to control SOx emissions from vessels in accordance with the Convention include, for example, methods to reduce emissions of sulfur oxides using basically low-sulfur fuels, and methods to reduce emissions of various types of coal and oil And a method of removing SOx from the exhaust gas. Among them, a flue gas desulfurization method for removing SOx from the exhaust gas is generally applied to a ship by a method using a seawater.

The cleaning method using seawater is sprayed on basic exhaust gases such as Bicarnonate, Carbononate, Hydroxide, Silicates, Ammonium and Borate contained in seawater, The cleaning device using the seawater neutralizes the SOx, and the cleaning water (sea water) is supplied to the scroller by using a seawater pump, and the wash water is sprayed to the exhaust gas from the scrubber nozzle to neutralize the sulfur oxide.

The above-mentioned prior art includes Utility Model Registration No. 20-0412134 (name of design: wet flue gas desulfurization apparatus), Utility Model Registration No. 20-0167349 (design name: flue gas desulfurization apparatus), utility model registration application 1996-044072 (Design name: wet flue gas desulfurization apparatus) and the like are known.

In the method of cleaning using seawater, the exhaust gas passed through a sea water scrubber to remove sulfur oxides has a temperature lower than the dew point under a cold outside temperature condition and is discharged in the form of a white mist, As shown in FIG. 1, a separate steam heater and an auxiliary equipment (a) for the steam heater are installed and operated. In this case, the installation and operation of the steam heater and the auxiliary equipment There is a problem in that a lot of additional costs are incurred.

Registered utility model No. 20-0412134 (Name of design: wet flue gas desulfurization device) Utility model registration No. 20-0167349 (name of design: flue gas desulfurization device) Utility model registration application 1996-044072 (Name of design: wet flue gas desulfurization device)

In order to solve the above problems, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method of operating a scrubber in a plume regulating region by directly introducing a high temperature exhaust gas into a diffuser diffuser without using a steam heater, It is an object of the present invention to provide a plume removing device using exhaust gas.

According to an aspect of the present invention, there is provided a plume removing apparatus using an exhaust gas for removing sulfur oxides and plumes contained in exhaust gas by a seawater scrubber, wherein a plurality of spray nozzles provided in the scrubber are used to remove seawater And an exhaust gas supply line for supplying exhaust gas to the exhaust gas supply pipe and a dummy chamber diffuser, and the exhaust gas is supplied to the dummy chamber diffuser as a heat source by an exhaust gas circulation line do.

The exhaust gas circulation line for supplying the exhaust gas to the diffusing diffuser as a heat source is installed at a predetermined position of the diffuser diffusing pipe, the exhaust gas supply line and the exhaust gas supply pipe.

In the present invention, the exhaust gas circulation line for supplying the exhaust gas to the diffusing diffuser as a heat source includes a valve capable of opening and closing, a supply line for supplying the exhaust gas to the gas inlet of the diffuse diffusing pipe at a predetermined position of the exhaust gas circulation line And a discharge line for discharging the exhaust gas circulated through the inside of the diffluent diffuser to the exhaust gas supply pipe of the seawater scrubber.

According to the flume removing apparatus using the exhaust gas according to the embodiment of the present invention, since the exhaust gas circulated to the diffuser diffuser is higher in temperature than the steam temperature of the conventional steam heater, the flume removing effect is excellent compared with the conventional one, And thus the space can be saved and equipment purchase and installation costs can be reduced.

Also. It does not require additional boiler capacity to drive the steam heater, so it can reduce the boiler capacity.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view illustrating a configuration of a conventional flume removal device. FIG.
FIG. 2 is a schematic view illustrating a configuration of a flume removing device using exhaust gas according to an embodiment of the present invention; FIG.
3 is an enlarged view of a main component of an exhaust gas purifying apparatus according to an embodiment of the present invention;

A preferred embodiment of the flume removing apparatus using the exhaust gas according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a schematic view illustrating a configuration of a plume removing apparatus using exhaust gas according to an embodiment of the present invention, and FIG. 3 is an enlarged view of a main constituent part of a plume removing apparatus using an exhaust gas according to an embodiment of the present invention FIG.

First, in the present invention, the term "plume" refers to a phenomenon in which the exhaust gas is discharged in a form of a white fog column at a temperature lower than the dew point under a cold outside temperature condition in the process of discharging the exhaust gas to the chimney of the ship Is defined.

As described above, the cleaning method using seawater is a method in which basic exhaust gases such as Bicarnonate, Carbononate, Hydroxide, Silicates, Ammonium, and Borate contained in seawater And neutralize sulfur oxides (SOx) by spraying.

Such a washing apparatus using seawater neutralizes sulfur oxides by supplying washing water (seawater) to the scrubber by using a seawater pump and spraying washing water from the scrubber nozzles onto the exhaust gas. In order to remove sulfur oxides, Exhaust gases are regulated in coastal areas where the temperature is lower than the dew point under cold outside temperature conditions, and are discharged in the form of a white mist.

The apparatus for removing a flume using an exhaust gas according to an embodiment of the present invention includes a seawater scrubber 10 for removing sulfur oxides and plumes contained in the exhaust gas.

The seawater scrubber 10 is provided at its lower end with a discharge port 11 for discharging sulfuric acid and seawater aqueous solution, and a plume can be removed by heating the exhaust gas to a predetermined temperature at a relatively constant upper position The diffusing diffuser 20 has a gas inlet 21 and a gas outlet 22 for supplying a heat source in the form of a heat exchanger.

In addition, the seawater scrubber 10 includes an exhaust gas supply pipe 12 and a plurality of injection nozzles 13. The exhaust gas supply pipe 12 serves as an inlet for supplying exhaust gas discharged from an engine, a generator engine or a boiler to the seawater scrubber 10. The injection nozzle 13 is connected to the exhaust gas supply pipe 12, To neutralize the sulfur oxides contained in the exhaust gas by spraying seawater into the exhaust gas supplied to the scrubber 10 through the exhaust gas.

An exhaust gas supply line 30 for supplying exhaust gas discharged from an engine, a generator engine, a boiler, and the like to the seawater scrubber 10 is connected to the exhaust gas supply pipe 12, and the seawater scrubber 10, a seawater supply line 40 for spraying seawater into the exhaust gas by supplying seawater as cleaning water to the spray nozzles 13 is provided in at least one or more of the spray nozzles 13, .

In this case, the exhaust gas, which is a heat source, is supplied to the dipple diffuse 20, the exhaust gas supply line 30 and the exhaust gas supply pipe 12 at predetermined positions, An exhaust gas circulation line 50 is provided to allow the plume to be removed by heating.

The exhaust gas circulation line 50 provided at a predetermined position between the diffuser diffuser 20 of the seawater scrubber 10 and the exhaust gas supply line 30 and the exhaust gas supply pipe 12 is connected to the supply line 51, And a discharge line 52. The supply line 51 for supplying the exhaust gas to the gas inlet 21 of the diffuse diffuser 20 is provided with a valve 51a which can be opened and closed, Is connected to the gas outlet 22 to circulate the inside of the diffuser diffuser 20 to heat the exhaust gas and to discharge the exhaust gas to the exhaust gas supply pipe 12 of the seawater scrubber 10 do.

In the operation of the flume removing device using the exhaust gas according to the embodiment of the present invention as described above, the exhaust gas from which the sulfur oxides are removed through the mixing of the seawater and the high temperature exhaust gas is approximately 10 ° C, depending on the amount of saturated water vapor, which may or may not be visually identifiable.

In addition, the amount of saturated water vapor increases in proportion to the increase in the temperature of the air, which means that the amount of water vapor per unit area is increased. On the contrary, when the temperature is lowered, the amount of saturated water vapor decreases This means that the amount of water vapor per unit area is reduced. In this case, when the outside air temperature becomes cold and falls below the dew point, the water vapor condenses to form a fog-like plume.

Accordingly, in the present invention, a part of exhaust gas discharged from an engine, a generator engine, a boiler, or the like is directly supplied to a depletion diffuser 20 through an exhaust gas circulation line 50, The flue gas can be removed by heating the exhaust gas discharged to the chimney to a certain temperature.

According to the flume removing apparatus using the exhaust gas according to the embodiment of the present invention, since the exhaust gas circulated to the diffuser diffuser is higher in temperature than the steam temperature of the existing steam heater, the flume removing effect is greatly improved, And thus the space is saved and equipment purchase and installation costs can be reduced.

Also. The capacity of the boiler can be reduced because no additional boiler capacity is required to operate the steam heater.

Up to now, a plume removing apparatus using exhaust gas according to the present invention has been described through the embodiments. The specification and drawings are set forth to illustrate preferred embodiments of the present invention and, although specific terms are employed, they are used in a generic sense only to facilitate the understanding of the contents of the present invention and to facilitate the understanding of the present invention. It is not intended to limit the scope. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

10: Seawater scrubber 11: Outlet
12: exhaust gas supply pipe 13: injection nozzle
20: Dipple diffuse 21: Gas inlet
22: gas exhaust port 30: exhaust gas feed line
40: Sea water supply line 50: Exhaust gas circulation line
51: supply line 51a: opening / closing valve
52: discharge line

Claims (2)

A flume removing apparatus using an exhaust gas for removing sulfur oxides and plumes contained in an exhaust gas by a seawater scrubber,
A depletion diffusor connected to the scrubber;
A seawater supply line for supplying seawater as cleansing water to a plurality of spray nozzles provided in the scrubber;
An exhaust gas supply pipe communicating with the scrubber to supply exhaust gas into the scrubber;
An exhaust gas supply line for supplying exhaust gas to the exhaust gas supply pipe;
And an exhaust gas circulation line for supplying a part or all of the exhaust gas flowing in the exhaust gas supply line to the dipple diffuse and flowing the exhaust gas cooled in the dipole diffuse to the exhaust gas supply pipe The exhaust gas purifying apparatus comprising:
The method according to claim 1,
An exhaust gas circulation line for supplying the exhaust gas to the dehumidifying diffuser as a heat source includes a supply line for supplying an exhaust gas to a gas inlet of the diffuse diffusing gas at a predetermined position of the exhaust gas circulation line, And a discharge line for discharging the exhaust gas circulated through the inside of the plume diffuser to the exhaust gas supply pipe of the seawater scrubber.

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