KR20180046739A - Apparatus for emitting exhaust gas - Google Patents

Abstract

Disclosed is an apparatus for emitting exhaust gas. The apparatus for emitting exhaust gas according to one embodiment of the present invention comprises: at least one exhaust pipe for supplying exhaust gas of a combustion engine; a communication pipe connected to the exhaust pipe and discharging the exhaust gas passing through the exhaust pipe to the outside; a first rinse water supply pipe for supplying rinse water to the inside of the exhaust pipe; a second rinse water supply pipe for supplying the rinse water to the inside of communication pipe; and a static mixer provided inside the exhaust pipe between the first rinse water supply pipe and the communication pipe for mixing the exhaust gas and the rinse water.

Description

[0001] Apparatus for emitting exhaust gas [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an exhaust gas discharging device, and more particularly, to an exhaust gas discharging device capable of collectively purifying various kinds of exhaust gas discharged from different combustion engines.

Generally, various engines installed on a ship generate power by burning fossil fuels. At this time, the exhaust gas generated in the combustion process of the fuel includes harmful substances such as SOx, NOx, and PM, It can cause pollution. For these reasons, environmental regulations for air pollution of vessels are being strengthened, and various processing devices are being applied to ships in order to satisfy various regulations.

In the environmental regulations on air pollution, regulations that specify the sulfur content in the exhaust gas emitted from the engine when operating and docking the marine emission control area (ECA) are less than 0.1% As a method for removal of cargo, ultra low sulfur fuel having a sulfur content of 0.1% or less may be used or a wet scrubber may be applied. However, since the super low sulfur oil is very expensive and the system such as the production facility is in short supply, a wet scrubber for removing sulfur oxides by gas-liquid contact with seawater, fresh water or an alkaline solution and exhaust gas is generally used.

However, in the conventional system using the wet scrubber, when various kinds of exhaust gases discharged from different engines are supplied to the scrubber, the reverse flow due to different inflow pressures is generated, have.

Korean Patent Publication No. 10-2016-0098448 2016.08.18

An object of the present invention is to provide an exhaust gas discharging device capable of collectively purifying various types of exhaust gas discharged from different combustion engines.

The technical objects of the present invention are not limited to the technical matters mentioned above, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an exhaust gas discharging apparatus including at least one exhaust pipe for supplying exhaust gas of a combustion engine, and an exhaust pipe connected to the exhaust pipe, A first cleaning water supply pipe for supplying cleaning water to the inside of the exhaust pipe, a second cleaning water supply pipe for supplying cleaning water to the inside of the communication, and a second cleaning water supply pipe for supplying cleaning water to the inside of the exhaust pipe between the first cleaning water supply pipe and the communication pipe And a static mixer for mixing the exhaust gas and the washing water.

A plurality of the exhaust pipes may be connected to the communication pipe, and the exhaust pipes may be connected to each other from different organs.

The stirring panel may have a diameter smaller than the diameter of the exhaust pipe and a plurality of the stirring panel may be installed inside the exhaust pipe.

A plurality of the exhaust pipes are connected to the communication pipe, and the exhaust pipes may have different diameters.

The exhaust gas discharging device may further include a droplet separator which is provided at an upper end of the second cleansing water supply pipe and communicates with an exhaust gas discharged from the communication.

The exhaust gas discharging device may further include a washing water discharge pipe formed at a lower portion of the communication pipe and discharging the washing water sprayed into the exhaust pipe and the communication pipe.

The exhaust gas discharging device may further include a storage tank connected to the cleansing water discharge pipe and storing cleansing water discharged from the communication pipe, wherein the first cleansing water supply pipe and the second cleansing water supply pipe are connected to the storage tank So that cleaning water can be supplied.

The exhaust gas discharge device may further include a neutralizing agent supply unit connected to the storage tank to supply the neutralizing agent.

The exhaust gas discharge device may further include a filter unit disposed at a rear end of the storage tank to separate fine dust contained in the washing water.

According to the present invention, it is possible to remove the contaminants contained in the exhaust gas by supplying the cleansing water to the existing communication pipe instead of installing the wet scrubber. Therefore, it is possible to reduce the cost of installing the wet scrubber and to maximize the space utilization.

In addition, by providing the cleaning water supply pipe and the agitating panel on the plurality of exhaust pipes connected to the communication, it is possible to prevent the reverse flow of the exhaust gas discharged from the different combustion engines due to different inflow pressures and to promote the mixing.

1 is a block diagram schematically showing a configuration of an exhaust gas discharging apparatus according to an embodiment of the present invention.
FIG. 2 is a view schematically showing the appearance of the exhaust pipe of FIG. 1. FIG.
3 is an enlarged view of a stirring panel installed in an exhaust pipe.
4 and 5 are operation diagrams for explaining the operation of the exhaust gas discharge device.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An exhaust gas discharging device according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5. FIG.

The exhaust gas discharging apparatus according to an embodiment of the present invention is an apparatus capable of discharging air suited to exhaust standards by reducing the concentration of various pollutants (nitrogen oxides, sulfur oxides, dust, etc.) contained in the exhaust gas. And can be used.

Instead of installing a wet scrubber, the exhaust gas discharging device can remove the contaminants contained in the exhaust gas by supplying cleaning water to the established communication pipe. Therefore, it is possible to reduce the cost of installing the wet scrubber and to maximize the space utilization. Further, the cleaning water supply pipe and the agitating panel are provided in a plurality of exhaust pipes connected to the communication, respectively, so that the exhaust gas discharged from the different combustion engines can be prevented from flowing backward by different inflow pressures, and the mixing can be promoted.

Hereinafter, the exhaust gas discharge device 1 will be described in detail with reference to Figs. 1 to 3. Fig.

FIG. 1 is a block diagram schematically showing a configuration of an exhaust gas purifying apparatus according to an embodiment of the present invention. FIG. 2 is a view schematically showing the exhaust pipe of FIG. 1, In which the panel is enlarged and shown.

The exhaust gas discharging device 1 according to the present invention includes at least one exhaust pipe 10, a communication 20, a first cleaning water supply pipe 30, a second cleaning water supply pipe 40, 50).

The exhaust pipe 10 is a pipe for supplying exhaust gas from a combustion engine (not shown), and at least one of which is connected to a communication 20 to be described later. The exhaust pipe 10 is directly connected to the exhaust port of the combustion engine and can be a passage through which the hot exhaust gas is directly moved or can pass through the various heat exchangers to recycle most of the exhaust heat and to transfer the remaining waste gas. Here, the combustion engine refers to an apparatus that generates various kinds of power required for a ship by burning fuel, and may be formed of, for example, a main engine, a generator, or the like. The exhaust pipe 10 may be connected to exhaust ports of a plurality of combustion engines, respectively, and a plurality of combustion engines may selectively operate to exhaust the exhaust gas. Such a combustion engine usually generates fossil fuel to generate power, and thus generates exhaust gas resulting from combustion of fossil fuel. The generated exhaust gas contains a large amount of nitrogen oxides, sulfur oxides, fine dust, and the like, and is supplied to the communication pipe 20 through the exhaust pipe 10 connected to the exhaust port of the combustion engine.

The communication pipe 20 is connected to the exhaust pipe 10 and discharges the exhaust gas passing through the exhaust pipe 10 to the outside, and may be a normal communication funnel. A plurality of exhaust pipes 10 may be connected to the communication pipe 20 and a plurality of exhaust pipes 10 may be radially arranged on the lower side of the communication pipe 20, At this time, the plurality of exhaust pipes 10 may be formed to have different diameters according to the capacity of the connected combustion engine. That is, the exhaust gas discharging device 1 according to the present invention has a structure in which the exhaust gas discharged from different combustion engines is collectively discharged through the communication pipe 20.

The first cleaning water supply pipe 30 and the second cleaning water supply pipe 40 are connected to the exhaust pipe 10 and the communication pipe 20, respectively.

The first rinse water supply pipe 30 is a pipe for supplying rinse water, which is at least one of seawater or fresh water or mixed water of seawater and fresh water, inside the exhaust pipe 10, and one end is connected to a seawater supply pipe 150 or a fresh water supply pipe And the other end can be connected to the exhaust pipe 10. That is, the first cleansing water supply pipe 30 selectively supplies seawater and fresh water to the inside of the exhaust pipe 10.

The second rinse water supply pipe 40 is a pipe for supplying rinse water, which is at least one of seawater or fresh water or mixed water of seawater and fresh water, inside the communication pipe 20, and one end is connected to a seawater supply pipe 150 or a fresh water supply pipe And the other end can be connected to the communication 20. That is, the second rinse water supply pipe (40) selectively receives seawater and fresh water and supplies the same to the inside of the communication pipe (20).

The process in which the seawater mainly flows through the first washing water feed pipe 30 and the second washing water feed pipe 40 and is supplied to the exhaust pipe 10 and the communication pipe 20 is limited mainly to the case where the washing water is seawater, .

The sea water supply pipe (150) is a pipe for receiving and supplying seawater and can receive seawater from the sea. However, the present invention is not limited to the case where the sea water supply pipe 150 is supplied with the seawater from the sea, and the seawater stored in the tank may be supplied as needed.

A part of the seawater flowing through the seawater supply pipe 150 flows through the first wash water supply pipe 30 and is supplied to the exhaust pipe 10 while the remaining part of the seawater flows through the second wash water supply pipe 40, 20). At this time, the first rinse water supply pipe 30 is disposed at the upper part of the exhaust pipe 10 at the end located inside the exhaust pipe 10, and is branched into a plurality of rinse water to spray the rinse water in a particulate form. The first cleansing water supply pipe 30 sprays the cleansing water in the form of particulates inside the exhaust pipe 10 so that contaminants such as nitrogen oxides, sulfur oxides, and fine dusts contained in the exhaust gas flowing through the exhaust pipe 10 The washing water sprayed from the first washing water supply pipe 30 forms a water curtain to prevent backflow of the exhaust gas according to different inflow pressures. Further, since the sprayed cleaning water serves to lower the temperature of the exhaust gas, the pollutant removal efficiency in the communication pipe 20 can be improved.

The second rinse water supply pipe (40) is disposed at the upper portion of the communicating tube (20) at an end located inside the communication pipe, and is branched into a plurality of rinse water to spray the rinse water in a particulate form. The second rinse water supply pipe 40 sprays rinse water in the form of fine particles inside the communicating pipe 20 so that the contaminants contained in the exhaust gas flowing through the communicating pipe 20 are dissolved in the rinse water and further removed from the exhaust gas And the exhaust gas from which the pollutants have been removed can be discharged to the outside through the upper portion of the communication pipe 20. Since the exhaust gas discharged through the upper portion of the communication pipe 20 is in a state in which contaminants such as nitrogen oxides, sulfur oxides, and fine dusts are removed, the exhaust gas can meet the exhaust standards and can be released into the atmosphere.

On the other hand, a stirring panel 50 is provided inside the exhaust pipe 10 between the first washing water supply pipe 30 and the communication pipe 20. The stirring panel 50 may be formed of a static mixer and installed below the first washing water supply pipe 30 by mixing different exhaust gases and exhaust gas with washing water. The stirring panel 50 has a diameter smaller than the diameter of the exhaust pipe 10, and as shown in FIG. 3, a plurality of the stirring panel 50 may be installed on the same plane. When a plurality of stirring panels 50 are installed in the exhaust pipe 10, a fixing plate 51 for fixing the plurality of stirring panels 50 may be additionally provided in the exhaust pipe 10. The stirring panel 50 is provided inside each of the exhaust pipes 10 so that the exhaust gas passing through the stirring panel 50 can rotate and flow smoothly to the other exhaust gas and the washing water. Particularly, when the oxidizing agent is injected into the exhaust pipe 10 to pre-oxidize the nitrogen monoxide contained in the exhaust gas with nitrogen dioxide, mixing of the exhaust gas and the oxidizing agent can be promoted by the stirring panel 50. However, the present invention is not limited to the provision of the plurality of stirring panels 50 in the exhaust pipe 10, and the number of the stirring panels 50 may be increased or decreased in proportion to the diameter of the exhaust pipe 10.

A guide 11 may be provided inside the exhaust pipe 10 between the agitation panel 50 and the communication pipe 20. The guide 11 is for guiding the flow of the exhaust gas and the washing water in the exhaust pipe 10 to the communication 20, and may be formed of a plate-like member, and a plurality of the guide members 11 may be arranged on the same plane.

In addition, the liquid separator 21 may be installed inside the communication pipe 20. The droplet separator 21 condenses the moisture particles contained in the exhaust gas in contact with the exhaust gas discharged through the communication, and may be provided at the upper end of the second cleaning water supply pipe 40, which is composed of a plurality of structures. The liquid separator 21 is provided at the upper end of the second rinse water supply pipe 40 so that the moisture particles are removed from the exhaust gas containing the moisture particles in contact with the rinsing water so that the exhaust gas can be discharged in a dried state , The water particles removed from the exhaust gas may be collected and recycled.

The cleaning water containing nitrogen oxides, sulfur oxides, fine particles, etc., comes into contact with the exhaust gas containing the pollutants and is discharged to the outside through the cleaning water discharge pipe (60). The washing water discharge pipe 60 is formed at a lower portion of the communication pipe 20 and collects the washing water sprayed to the exhaust pipe 10 and the communication pipe 20 and discharges the washing water to the outside. At this time, the cleaning water in the exhaust pipe 10 and the communication pipe 20 dissolves nitrogen oxides and sulfur oxides to form strongly acidic nitric acid and sulfuric acid, so that microorganisms contained in the washing water can be killed. A storage tank (70) is connected to the washing water discharge pipe (60).

The storage tank 70 temporarily stores the cleansing water discharged from the communication pipe 20 and includes a seawater supply pipe 150, a first washing water supply pipe 30, a second washing water supply pipe 40, The discharge pipes 60 may be connected to the storage tank 70, respectively. That is, the washing water flowing through the sea water supply pipe 150 is supplied to the first washing water supply pipe 30 and the second washing water supply pipe 40 through the storage tank 70, and the washing water discharge pipe 60, The washing water discharged through the washing tank 70 passes through the storage tank 70 and then moves to the filter unit 80 to be described later.

In addition, a neutralizing agent supply unit 90 for supplying a neutralizing agent is connected to one side of the storage tank 70, so that the strong acid washing water discharged from the communication pipe 20 can be neutralized. The neutralizing agent may be an alkaline solution, for example, sodium hydroxide (NaOH) or sodium hypochlorite (NaOCl), and the neutralizing agent supplying unit 90 may be formed of a device for directly producing a neutralizing agent by electrolyzing seawater or the like, May be formed of a stored neutralizer tank. A sensor unit (not shown) may be installed on one side of the storage tank 70 to detect the pH value contained in the washing water in real time. The neutralizing agent supplying unit 90 may adjust the supply amount of the neutralizing agent in conjunction with the sensor unit .

The filter unit 80 is installed at the rear end of the storage tank 70 to separate fine dust, and may be formed of at least one of a centrifugal separator, a gravity separator, and a filter. That is, the cleaned water neutralized in the storage tank 70 is removed from the filter unit 80, the fine dust is removed, and the cleansing water containing the salt is supplied to the separate separator 100, . ≪ / RTI > The salt separated from the cleansing water may be stored in a separate salt storage tank 120. The cleansing water from which salt has been removed may be circulated through the circulation pipe 110 to the storage tank 70 or through the seawater discharge pipe 130 It can be discharged to sea. On the other hand, the fine dust separated in the filter unit 80 may be stored in the sludge tank 140.

Hereinafter, with reference to Figs. 4 and 5, the operation of the exhaust emission apparatus 1 will be described in more detail.

4 and 5 are operation diagrams for explaining the operation of the exhaust gas discharge device.

The exhaust gas discharge device 1 according to the present invention can supply clean water to the existing communication pipe 20 to remove contaminants contained in the exhaust gas. Therefore, it is possible to reduce the cost of installing the wet scrubber and to maximize the space utilization. The first cleaning water supply pipe 30 and the agitation panel 50 are provided in the plurality of exhaust pipes 10 connected to the communication pipe 20 so that exhaust gas discharged from different combustion engines It is possible to prevent backflow and promote mixing.

4 is a view showing an open loop type operation in which seawater introduced into a seawater supply pipe is discharged to the outside after passing through an exhaust pipe, FIG. 5 is a view showing a state in which seawater introduced into a sea water supply pipe communicates with an exhaust pipe And then circulated through the circulation pipe after passing through the circulation pipe.

4, the seawater introduced through the seawater supply pipe 150 passes through the storage tank 70 and then flows through the first wash water supply pipe 30 and the second wash water supply pipe 40 And is supplied to the plurality of exhaust pipes (10) and the communication pipe (20). The washing water flowing in the first washing water supply pipe 30 is sprayed from the upper portion to the lower portion of each exhaust pipe 10 and the washing water flowing in the second washing water supply pipe 40 is discharged from the upper portion of the communication pipe 20 As shown in Fig. The washing water is injected into each of the exhaust pipes 10 through the first washing water supply pipe 30 so that nitrogen oxide, sulfur oxide, fine dust, and the like contained in the exhaust gas can be removed first. In particular, since the agitation panel 50 is provided in each exhaust pipe 10, the exhaust gas and the exhaust gas can be smoothly mixed with each other. Further, the washing water is injected into the communication pipe 20 through the second washing water supply pipe 40, so that contaminants contained in the exhaust gas can be further removed. Through this process, the pollutants in the exhaust gas are removed, and the exhaust gas from which the pollutants are removed is discharged to the outside through the communication pipe 20.

The washing water sprayed on the exhaust pipe 10 joins the washing water sprayed on the communication pipe 20 and is discharged to the outside of the communication pipe 20 through the washing water discharge pipe 60. Since the storage tank 70 and the filter unit 80 are provided on the washing water discharge pipe 60, the washing water sequentially passes through the storage tank 70 and the filter unit 80. At this time, the neutralizing agent supply unit 90 can appropriately supply the neutralizing agent in accordance with the pH value of the washing water stored in the storage tank 70. The filter unit 80 separates the fine dust from the supplied washing water, and the fine dust is separated and the washing water containing the salt is supplied to the separator 100. The separator 100 separates the salt and the washing water, supplies the salt to the salt storage tank 120, and discharges the cleansing water from which the salt has been removed to the sea via the sea water discharge pipe 130. The fine dust separated from the filter unit 80 is supplied to the sludge tank 140.

5, the seawater introduced through the seawater supply pipe 150 is supplied to the exhaust pipe 10 and the communication pipe 20 through the first wash water supply pipe 30 and the second wash water supply pipe 40, respectively do. The washing water supplied to the exhaust pipe 10 through the first washing water feed pipe 30 comes into contact with the exhaust gas in the exhaust pipe 10 to remove the contaminants firstly and to communicate with the exhaust pipe 10 through the second washing water feed pipe 40 The washing water supplied to the exhaust pipe 20 further removes contaminants remaining in the exhaust gas flowing into the communication pipe 20 through the exhaust pipe 10. Thus, the exhaust gas is discharged through the communication 20 in a state in which the contaminants are removed.

The washing water sprayed to the exhaust pipe 10 is merged with the washing water sprayed into the communication pipe 20 and discharged through the washing water discharge pipe 60 in a state containing contaminants, Respectively. The filter unit 80 supplies cleansing water containing fine dust and containing the salt to the separator 100. The cleansing water from which the salt separated in the separator 100 has been removed is passed through the circulation pipe 110 to the storage tank 70). 5, except that the washing water discharged through the washing water discharge pipe 60 is recycled through the circulation pipe 110 in a state that the washing water is discharged to the outside of the compartment and the salt is removed, same.

The process of FIG. 5 may be operated when the seawater can not be discharged to the outside, such as when the discharge of seawater is restricted, and the processes of FIGS. 4 and 5 may be performed selectively or sequentially Can be operated.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1: exhaust gas discharging device 10: exhaust pipe
11: guide 20: communicating
21: droplet separator 30: first rinse water supply pipe
40: second rinsing water supply pipe 50: stirring panel
51: Fixing plate 60: Cleaning water discharge pipe
70: Storage tank 80: Filter unit
90: Neutralizing agent supply unit 100: Separator
110: circulation tube 120: salt storage tank
130: Sea water discharge pipe 140: Sludge tank
150: Seawater supply pipe

Claims (9)

At least one exhaust pipe for supplying exhaust gas of a combustion engine;
A communication pipe connected to the exhaust pipe and discharging the exhaust gas passing through the exhaust pipe to the outside;
A first cleaning water supply pipe for supplying cleaning water to the inside of the exhaust pipe;
A second cleaning water supply pipe for supplying cleaning water to the inside of the communication; And
And a static mixer installed inside the exhaust pipe between the first cleansing water supply pipe and the communication port for mixing the exhaust gas with the cleansing water. The exhaust system according to claim 1, wherein a plurality of the exhaust pipes are connected to the communication,
Wherein the exhaust pipes are connected to each other from different organs. The exhaust gas discharging device according to claim 1, wherein the stirring panel has a diameter smaller than the diameter of the exhaust pipe, and a plurality of the stirring panels are provided inside the exhaust pipe. The exhaust system according to claim 1, wherein a plurality of the exhaust pipes are connected to the communication,
Wherein the exhaust pipes are different in diameter from each other. The exhaust gas discharging apparatus according to claim 1, further comprising a liquid separator provided at an upper end of the second rinse water supply pipe on the inner side of the communication, the droplet separator comprising a plurality of structures and in contact with exhaust gas discharged through the communication. The exhaust gas discharging apparatus according to claim 1, further comprising: a cleaning water discharge pipe formed at a lower portion of the communication pipe to discharge the washing water sprayed into the communication pipe with the exhaust pipe. 7. The washing machine according to claim 6, further comprising a storage tank connected to the washing water discharge pipe and storing washing water discharged from the communication pipe,
Wherein the first cleaning water supply pipe and the second cleaning water supply pipe are connected to the storage tank to receive cleaning water. The exhaust gas discharging apparatus according to claim 7, further comprising a neutralizing agent supply unit connected to the storage tank to supply a neutralizing agent. The exhaust gas discharging apparatus according to claim 7, further comprising a filter unit disposed at a rear end of the storage tank for separating fine dust contained in the washing water.

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