KR20190013536A - Method and installation for wet scrubbing exhaust fumes of a motor of a marine vessel - Google Patents

Abstract

The present invention relates to a wet particulate matter (PM) purification system of an engine for a marine vessel, to restrict pressure drop in a cleaner, and equipment thereof. According to the present invention, PM (1) to be purified is transferred to a cleaner (100) having a rectangular horizontal section and comes into the cleaner fundamentally in parallel through an opening (107) of a first side wall (103) from two small side walls of the cleaner. The PM is continuously circulated in the cleaner while meeting veils (11) of first cleaning solution (10) and a lane (21) of second cleaning solution (20). The veils (11) of the first cleaning solution (10) are transmitted by a first spray means (200) disposed on the lower part of the cleaner (100), are upwardly sprayed in a fan shape by the first spray means, are disposed horizontally with respect to an opening (107) at the same time, are distributed between first and second side walls (105) to pass the PM (1) therethrough, and deflect the PM upwardly. The lane (21) of the second cleaning solution (20) is transferred by a second spray means (300) disposed on the upper portion of the cleaner, is extended from the first spray means to the second spray means, and is sprayed downward by the second spray means in a free volume (V100) of the cleaner, in which the PM upwardly deflected by the veils of the first cleaning solution is freely circulated in a scheme of being ascended by meeting the lane of the second cleaning solution as a counter flow and is circulated in the cleaner while meeting the lane (21) of the second cleaning solution (20) distributed on the rectangular horizontal section.

Description

TECHNICAL FIELD [0001] The present invention relates to a method and an apparatus for wet-cleaning an exhaust gas of a marine vessel engine,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for wet-purifying exhaust gas emitted by a ship engine.

A cruise liner or other vessel, a sailing vessel, uses heavy oil as fuel for diesel engines to ensure its propulsion. This heavy oil contains up to 5% by mass of sulfur, most usually from 0.5 to 3.5% by mass. During the combustion process in the engine, this sulfur is converted to sulfur dioxide (SO2). As a result, the exhaust gases of these engines are acidic.

The ongoing maritime control legislation forcibly limits emissions from ship fleets to 0.1% sulfur in heavy oil, in certain zones. In practice, the emission limit depends on the seagoing zone, where the emission of sulfur dioxide should be less than in the middle of the sea, near the coast or in the harbor. Even at the port, cruise liners are likely to emit sulfur dioxide because they have to keep the engine running to provide onboard power. Therefore, in order to comply with regulations, the vessel needs to have means for reducing the emission of sulfur dioxide in the soot before discharging it to the atmosphere. Several approaches can be considered.

First, liquefied gas can be used which reduces the sulfur content of the heavy oil used or reduces the release of sulfur dioxide immediately. However, this method is not economical because heavy oil has a very low sulfur content and liquefied gas is costly.

Another method consists of using a wet scrubber to disperse neutralizing reagents such as sodium hydroxide. However, the amount of sodium hydroxide to be prepared is high because the flux of sulfur dioxide to be treated can reach 500 kg per hour per scrubber for very large passenger ships. In addition to the price of sodium hydroxide, its storage and very caustic properties should be considered dangerous.

Further, it is more frequently carried out to clean the exhaust gas using seawater. This technique, which is carried out by a scrubber that utilizes the natural alkalinity of the seawater to neutralize sulfur dioxide, is known and proficient, especially for electricity generating plants located at the beach. Practically, there are two techniques.

The first technique is based on the use of a scrubber using the equipment. The installation may consist of a ring or an internal structure that is juxtaposed into the scrubber tower, or it may be provided with a structured feature, that is, the facility comprises a structurally repeating material in space. These facilities are very good in terms of the delivery efficiency, i.e. the ability to collect sulfur dioxide, which leads to the volume used in the scrubber. However, two limitations must be considered. On the one hand, if the pressure drop to the installation can be large and the cleaner has to be located downstream of the diesel engine, a blower must be used to overcome this pressure drop, It is. On the other hand, it should be expected that the soot coming from the diesel engine is very hot so that very hot uncooled soot, for example over 200 ° C, will flow into the scrubber after malfunction even if a dipping device is present. At a minimum, the scrubber and its equipment can support dry operation, so the bypass must not always be considered, so the components must withstand temperatures above 200 ° C. For this reason, for the scrubber and its equipment, the material which can withstand the temperature must be selected. In the case of a cleaner mounted on a ship, it is very chlorine-rich and acidic, and in the middle of the sea, which is a reducing agent, it is strongly corrosive, and the facility cost is substantially substantial.

The second technique, which uses seawater to reduce the sulfur dioxide contained in the soot, is well used in a power plant generating energy on land, the second of which consists of using an empty scrubber, in which seawater is sprayed and rises in the interior of the scrubber So that it comes into contact with the circulating soot.

In both techniques, the scrubber has a conventional circular horizontal section, which provides structural advantages and minimizes corrosion problems, in particular stress corrosion problems.

However, on board ships, especially large vessels such as container ships or cruise ships, spaces are invaluable, and in essence, circular designs do not allow space or optimize available space in any case. For this reason, as in JP 6104491 B1, a rectangular design including a square that makes better use of space has been proposed. This rectangular design, however, faces a number of problems which will be described in detail with respect to FIG. 1, in which a navigational washer (L) having a rectangular horizontal section of the prior art is shown.

In Fig. 1, the soot F to be purified flows into the interior of the washer L by the opening O of one side wall L1 of the washer corresponding to one of the two small sides. For practical and economical reasons, soot (F) penetrates into the scrubber so as to be substantially horizontal, for example at a high speed exceeding 15 m / s. Inside the washer L, the soot F is cleaned of contaminants, in particular sulfur dioxide, by contact with a washer fluid E for collecting sulfur dioxide and other contaminants, and the washer fluid E is generally seawater. The washer fluid (E) is sprayed inside the washer (L) by the spraying means (P) arranged on the top of the washer. In the case where there is no internal equipment of the washer L, a large amount of soot in the inside of the washer tends to accumulate on the side wall L2 side of the washer L opposite to the side wall L1, The rate of introduction causes this soot to be distributed very heterogeneously within the scrubber. In other words, the flux of soot inside the scrubber L has a vertical velocity component which is near zero near the opening O, which is very large on the side of the wall L2, which is unacceptable and deteriorates the cleaning performance I will. This non-uniformity of the soot velocity profile inside the scrubber L is also related to the fact that it is more difficult to ensure a uniform distribution of soot inside the rectangular horizontal section than in the interior of the circular horizontal section.

A perforated horizontal plate through which the soot is to pass through during its ascension or by disposing an obstacle such as a rotating plate composed of, for example, a blade as shown in Fig. 1, in the path of the soot L, F can be more uniformly distributed. However, these perforated plates, which tend to equalize the velocity profile of the soot, induce a substantial pressure drop. In the case of the blade (A), a small but non-negligible pressure drop is induced, and the flux of the soot is only partly equalized.

In addition, both the apertured plate and the blade (A) also undergo fouling. In fact, they are always cleaned by the cleaning liquid E coming out of the spraying means P, and as a result of this, as long as the cleaning liquid E is seawater containing fresh seawater or salt, Or the specific salts contained in the cleaning liquid E, particularly calcium sulfate and sodium sulfate, have a very decreasing solubility when the temperature rises, the crystallized salt is accumulated in the apertured plate or the blade (A). In other words, as long as the perforated plate and the blade A are always heated by the soot F, they are subjected to fouling to an unacceptable extent by the salt deposit.

Although it is of course possible to limit the strength of such fouling by the salt deposit by pre-quenching the soot in advance, this does not completely eliminate the risk of fouling, in particular it solves the problem of uneven distribution of soot in the interior of the washer (L) I never do that. This non-uniformity is actually not economical in that a very large amount of cleaning liquid E is required to purify the soot F as required by regulation, which actually deteriorates the cleaning performance.

It is an object of the present invention to propose a navigational washer device having a rectangular horizontal section that solves the above mentioned disadvantages in a sophisticated and inexpensive manner.

For that purpose, the present invention aims at a method for wet-purifying exhaust gas of an engine for a marine vessel,

In the method, the soot to be purified is conveyed to a scrubber having a rectangular horizontal section and having first and second side walls opposite to each other along the longitudinal direction of the rectangular horizontal section,

Soot penetrates substantially horizontally into the scrubber through the opening of the first side wall, continuously in the interior of the scrubber:

- bails of the first rinse liquid delivered by the first spraying means located in the lower portion of the scrubber, sprayed upward in a fan shape by the respective first spraying means, and arranged facing horizontally with respect to the opening A bale of a first rinse solution distributed between the first side wall and the second side wall to pass soot penetrated into the washer and to bend it upward,

- a lane of a second cleaning liquid delivered by a second spraying means located at the top of the washer, said lane extending from said first spraying means to said second spraying means and being deflected upwardly by the bales of said first rinsing liquid Sprayed downward by the second spraying means within the free volume of the scrubber which freely circulates in such a way that the soot rises in counterflow with the lanes of the second scrubbing liquid and flows toward the second sidewall rather than the first sidewall Circulates within the scrubber as it meets the lanes of the second rinse solution having a larger spray density and distributed on the rectangular horizontal section.

The present invention also relates to an apparatus for wet-cleaning an exhaust gas of an engine for a seagoing vessel, the apparatus comprising a first sidewall and a second sidewall having a rectangular horizontal section and opposite to each other along the longitudinal direction of the rectangular horizontal section, Wherein the first side wall of the washer is provided with an opening for passing the soot, and the inside of the washer

- first spraying means located at the bottom of the scrubber and adapted to dispense the first scrubbing liquid in the form of a veil, wherein the bails are simultaneously sprayed upward in a fan-like form, facing horizontally with respect to the opening, The first spraying means being distributed between the one side wall and the second side wall so that the soot penetrates substantially horizontally through the opening into the interior of the scrubber to cross the veil and refract upwardly,

- a liner of the second cleaning liquid located on top of the scrubber and adapted to dispense a second cleaning liquid in the form of lanes and having a larger spray density towards the second sidewall than the first sidewall, Wherein the lane extends from the first spraying means to the second spraying means and the soot refracted upward by the bail of the first rinsing liquid flows from the lane of the second rinsing liquid to the lane of the second rinsing liquid, In the free volume of the scrubber that freely circulates in a rising manner in countercurrent contact with the second spraying means

Is provided.

According to the invention, the soot to be purified can be treated, in particular desulfurized, in a navigational scrubber with rectangular horizontal sections in a highly efficient manner. Indeed, in addition to quenching soot entering the scrubber and contributing to collecting sulfur dioxide therefrom, the bale of the first scrubbing liquid can be used to equalize the distribution of the soot introduced into the horizontal section of the scrubber by rising the soot upward again There is a tendency. The lanes of the second rinse liquor are sprayed non-uniformly over the rectangular section of the rinse as explained in detail below, thereby fully balancing the distribution of the soot circulating in the rinse cycle. On the other hand, since the present invention contemplates a configuration in which the scrubber is substantially empty, the pressure drop in the scrubber is limited and the risk of fouling due to salt formation is reduced.

According to an advantageous further feature of the method and the arrangement according to the invention, given separately or in all possible technical combinations:

The sectoral shape formed by each of the bailings of the first rinsing liquid has an apex angle in the range of 30 to 135 degrees.

The sectoral shape formed by each of the bailings of the first rinsing liquid has an apex angle in the range of 90 to 135 degrees.

The fan shape formed by each of the bails of the first rinsing liquid may extend substantially vertically or may include an angle that is within a range of 25 [deg.] Toward the first sidewall and 45 [deg.] Toward the second sidewall, And extends in a state inclined with respect to the vertical line while being formed with a vertical line.

The flux of the first cleaning liquid sent out by the first spraying means represents 25% or less of the cumulative flux of the first cleaning liquid and the second cleaning liquid sent out by the first spraying means and the second spraying means, respectively.

The first cleaning liquid and / or the second cleaning liquid include seawater or consist of seawater.

- Soot is quenched by quenching before entering the inside of the scrubber.

The first atomizing means comprises three or more rows, these rows being distributed between the first and second side walls and each comprising one or more atomizing nozzles.

The first atomizing means comprises a flat jet nozzle.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be better understood from a reading of the following description taken in conjunction with the accompanying drawings,
1 is a schematic view of a purification plant belonging to the prior art disclosed above;
2 is a schematic perspective view of a purification plant according to the invention;
3 and 4 are schematic cross-sectional views along the III-III and IV-IV planes of FIG. 2, illustrating the practice of the purification method according to the present invention;
5 is a schematic plan view in accordance with the arrow V showing the implementation of the purifying method according to the invention;

Fig. 2 shows a facility capable of purifying exhaust gas of a diesel engine, particularly a desulfurization facility, which ensures the propulsion of a navigation vessel on which the equipment is to be loaded. The soot 1 contains various contaminants, in particular sulfur dioxide (SO ₂ ).

In the installation of Fig. 2, the soot 1, which may be subject to preliminary denitrification out of the exhaust port of the engine, is conveyed to the washer 100 as shown in Figs. 3-5.

As schematically shown in FIG. 2, the scrubber 100 is in the form of a parallelepiped having a generally horizontally extending base of a rectangular shape including a square overall. In other words, the scrubber has a rectangular horizontal section, and the term rectangle means a parallelogram having four right angles, the length of which is greater than the width, rather than the square. Thus, the scrubber 100 includes a floor 101 at its base and a ceiling 102 at its top. The scrubber 100 also includes four planar side walls 103-106 that extend vertically between the floor 101 and the ceiling 102 and together define a rectangular horizontal section of the scrubber. As can best be seen in Figure 3, the side walls 103 and 105 are two side walls opposite each other along the longitudinal direction of the rectangular horizontal section of the scrubber. 4, the side walls 104 and 106 are two side walls opposite each other along the width direction of the rectangular horizontal section. Of course, practically, the connection area between the bottom 101, the side walls 103-106 and the ceiling 102 need not necessarily be angled, but may be rounded.

As shown in Figures 2-4, the side wall 103 is provided with a through opening 107 located at the bottom of the scrubber 100, particularly closer to the bottom 101 than the ceiling 102 . The outline of the opening 107 is preferably a rectangular shape as seen in the drawings, but other shapes such as a trapezoid are also possible. Also, the openings 107 can be implemented in one unique orifice without distinction or in the form of a plurality of discrete orifices.

As shown schematically in Fig. 3, in operation, the soot 1 penetrates into the scrubber 100 substantially horizontally by being introduced by the opening 107. As a non-limiting example, the dimensions of the opening 107 are calculated such that the speed of the soot 1 in this opening is in the range of 15 m / s to 50 m / s.

2 to 4, the washer 100 can send the first cleaning liquid 10 supplied to the spraying means 200 into the interior of the washer in the form of a bale 11 (200). Each veil 11 is sprayed upward by a spraying means 200 in a sectoral form extending in a plane perpendicular to the side walls 104 and 106 as a whole. The sectoral shape formed by each bail 11 advantageously has an apex angle beta in the range of 30 [deg.] To 135 [deg.], Preferably in the range of 90 [deg.] To 135 [deg.]. On the other hand, the sector may extend substantially vertically or may have an angle indicated by a in Fig. 3, which is included in the range of 20 [deg.] Toward the first sidewall 103 and 45 [deg.] Toward the second sidewall 105 And extends in a state inclined with respect to the vertical line while being formed with the vertical line.

2 to 4, the spraying means 200 is disposed at the bottom of the washer 100, and the bails 11 to which the spraying means 200 is sprayed upward are positioned horizontally with respect to the opening 107 As shown in FIG. The spraying means 200 is also provided so that the bails 11 they deliver are distributed between the side wall 103 and the side wall 105, that is to say distributed in the longitudinal direction of the rectangular horizontal section of the cleaner 100. For this purpose, the spraying means 200 comprises, in practice, rows, preferably at least three rows each occupying a different position in the longitudinal direction of the rectangular horizontal section of the scrubber 100, ) And the sidewalls 105, which are advantageously distributed uniformly, but advantageously. These rows each include one or a plurality of, for example two or three, individual spray nozzles 201. As a preferred example, the nozzle 201 is a flat jet nozzle.

As shown schematically in Figures 3 and 4, during operation, the soot 1 flows into the scrubber 100 and flows into the first row of the spray means 200, i. E., In a row closest to the side wall 103 And then the bail or bails 11 sprayed by the heat successive to the first row in the direction of the second row of spraying means 200, i.e. the side wall 105, And so on. When the soot 1 traverses the bails 11 in this manner continuously, these bails are gradually refracted upward by the movement of the momentum, that is, the vertical component of the velocity of each bail 11 is at least partially Is delivered to the soot 1 which deflects the soot upwardly, which becomes more pronounced as the soot proceeds from the sidewall 103 towards the sidewall 105, as shown in Fig. At the same time, the component present by the horizontal component of the speed of the sides of each veil 11, the sectoral form of the veil, is also transferred to the soot across the veil, which causes the soot to flow to the side walls 104 and 106, To be distributed laterally. Therefore, even if the soot 1 penetrates into the washer 100 substantially horizontally, the soot is gradually refracted upward and distributed sideways by the veins 11 of the washer fluid 10. Therefore, these bails 11 realize the equalization of the soot velocity profile.

Another advantageous effect of the bail 11 is that it also contributes to quenching the soot 1, i.e. significantly reducing the temperature of the soot. For example, even though the soot 1 may pass through the opening 107 at a temperature of about 250 ° C or higher, after the soot traverses the veil 11, the bail 11 changes the temperature of the soot to 80 ° C Or less.

The scrubber 100 is also provided with a spraying means 300 therein which can dispense the scrubbing liquid 20 supplied to the spraying means 300 into the interior of the scrubber in the form of a lane 21 . The spraying means 300 is located at the top of the scrubber and within the free volume V100 of the scrubber 100 extending from the spraying means 200 to the spraying means 300 the lane 21 is directed towards the bottom Spray. By way of non-limiting example, the spraying means 300 are self-contained and include an individual dispenser 301, which can be a spray nozzle, a dispensing lamp, a spray head, and the like. In any case, the lane 21 sprayed by the spraying means 300 falls onto a substantially entire rectangular horizontal section of the free volume V100, even if the distribution of the distributor 301 is not exactly uniform .

3 and 4, the soot erected by the bail 11 of the cleaning liquid 10 is returned to the lane of the cleaning liquid 20 falling from the spraying means 300 toward the bottom 21 and countercurrently, and freely circulates in an ascending manner within the free volume V100. Through this lane 21, the soot is simultaneously purified, particularly desulfurized and cooled.

The flux of the cleaning liquid 10 delivered by the spraying means 200 is smaller than the flux of the cleaning liquid 20 delivered by the spraying means 300. [ Actually, most of the cleaning work of the soot, in particular, the cleaning liquid 20 delivered by the spraying means 300, is provided especially for performing most of the soot desulfurization work. Therefore, according to the selective operating characteristic, the flux of the cleaning liquid 10 represents 25% or less of the cumulative flux of the cleaning liquid 10 and the cleaning liquid 20.

It is important to understand that the bail 11 alone can not stand up the soot circulating inside the washer 100 again, and more generally can not realize the uniformity of the soot. Ideally, the ratio between the standard deviation of the vertical component of the soot velocity and its average is less than 15% when measured at the mid-height of the scrubber 100. In addition, according to the present invention, the spray density of the lane 21 is not uniform along the longitudinal direction of the rectangular horizontal section of the volume V100 but is smaller than that of the side wall 105 from the side wall 103 side of the horizontal section So that a larger amount of the cleaning liquid 20 is introduced. In other words, the spray of the lane 21 is operated regularly, if necessary, in such a manner as to increase from the side wall 103 to the side wall 105. 5 shows that the flux of the cleaning liquid 20 leading to the area of the portion S105 located on the sidewall 105 side of the rectangular horizontal section of the washer 100 is the portion of the rectangular horizontal section located on the side wall 103 side 5 is particularly illustrative of the structure of the present invention in that it is larger than the flux of the cleaning liquid 20 delivered to the region of the step S103, particularly 1.2 times or more.

In this way, on the side wall 105 side of the scrubber 100, more scrubbing liquid 20 is seen by more soot. The present invention thus rebuilds the soot velocity profile and at the same time allows the lanes 21 to be redistributed on the rectangular horizontal sections of the scrubber 100 with greater spray density towards the side walls 105 than the side walls 103 We want to correct as many residual defects as possible. In particular, the counter-current flow of exhaust circulation while overall increase in the vertical, and lanes are generally proportional to the density of the lane that the pressure drop is expressed in kg per volume m ³ according to a predetermined gas velocity circulating and descending in a vertical direction The local flow rate and the local velocity of the soot are liable to be reduced where the droplet of more lanes is present since the pressure is equilibrated by the ratio dominated by the appearance of the flow, By modifying the inertia or ballistic effects, the velocity profile is flattened even though the lanes are uniformly distributed.

After passing through the lane 21, the soot is purified and outflowed from the washer 100 by the opening 108 in the form of a flux 2. The opening 108 is provided through the ceiling 102 or through the top of one of the side walls 103-106 in which case the opening 108 is located above the spraying means 300. In the embodiment contemplated in the figures, where the openings 108 are provided is the ceiling 102.

In an optional, non-illustrated manner, a sanitizer or a droplet separator is mounted within the scrubber 100, which, in a manner known per se, The droplet can be maintained in the purified soot 2.

The composition of each of the cleaning liquid 10 and the cleaning liquid 20 is not limited to the present invention. Each of these rinsing liquids 10 and 20 preferably includes seawater, and if necessary, an alkaline reagent is added. One and / or the other of the cleaning fluids 10 and 20 may consist of a magnesia suspension, a lime suspension or a sodium solution. On the other hand, according to the first operability, the compositions of the cleaning liquid 10 and the cleaning liquid 20 are the same. According to an alternative operability, the composition of the cleaning liquid 20 is not the same as the composition of the cleaning liquid 10, that is, in particular, the cleaning liquid 20 is composed of, for example, fresh seawater and the alkaline reagent is added On the other hand, the cleaning liquid 10 may be a recycled liquid. In any case, the total amount of the rinsing liquid 10 and the rinsing liquid 20 sprayed by the spraying means 200 and the spraying means 300, respectively, is sufficient to cause the flux of contaminants, in particular sulfur dioxide, contained in the soot 1 , kg / h).

At the bottom 101 of the scrubber 100, the scrubbing liquid 10 and the scrubbing liquid 20 are collected by means known per se not shown in the figure. These liquids are discharged as soon as they are collected and the scrubber 100 is operated in a manner known to those skilled in the art as " open loops " so that the liquid is recycled to the scrubber 100, or the scrubber is called a " closed loop " . Of course, in the closed-loop mode, the scrubbing liquid 10 and the scrubbing liquid 20 obtained at least partially by recirculation have higher salinity than fresh seawater.

On the other hand, as an optional configuration not shown, the soot 1 is immersed by quenching before penetrating into the washer 100. This quenching by quenching, which is carried out immediately upstream of the opening 107, is carried out by means of a known device, for example by means of a solid or hollow spray nozzle.

2 to 5 shows a continuous effect of the lane 21 of the cleaning liquid 20 sprayed by the spraying means 300 and the bail 11 of the cleaning liquid 10 sprayed by the spraying means 200. [ , Particularly in the desulfurization of the soot 1 due to the gradual equalization of the soot velocity profile inside the washer 100 under the condition of the flue gas. Also, considering the free volume V100, the pressure drop inside the scrubber 100 is very limited and the risk of fouling due to salt formation is greatly reduced.

Claims (10)

CLAIMS 1. A method for wet-purifying an exhaust gas of an engine for a marine vessel,
The soot 1 to be purified is conveyed to a washer 100 having a rectangular horizontal section and having a first side wall 103 and a second side wall 105 opposite to each other along the longitudinal direction of the rectangular horizontal section,
The soot 1 penetrates substantially horizontally into the washer 100 through the opening 107 of the first side wall 103 and continuously in the interior of the washer:
- veils (11) of a first cleaning liquid (10) delivered by a first spraying means (200) located below the washer (100) And is distributed between the first sidewall 103 and the second sidewall 105 so as to flow toward the inside of the washer 100, (11) of the first cleaning liquid (10) passing through the first cleaning liquid (1) and refracting upward, and
- a rain (21) of a second cleaning liquid (20) delivered by a second spraying means (300) located at the top of the washer (100), wherein the second spraying means And the free volume of the washer (100), which extends to the means and is freely circulated in such a manner that the soot refracted upward by the bails (11) of the first washer fluid (10) rises in counter to the lanes of the second washer fluid Is sprayed downwardly by the second spraying means and is distributed on the rectangular horizontal section with a greater spray density toward the second sidewall (105) than the first sidewall (103) The lanes 21 of the second cleaning liquid 20
And the exhaust gas of the engine for voyage which is circulated inside the washer is wet-cleaned. The method according to claim 1,
Wherein the sectoral shape formed by each of the bailings (11) of the first rinse solution (10) has a vertex angle (?) In the range of 30 to 135 degrees. The method according to claim 1,
Wherein the sectoral shape formed by each of the bailings (11) of the first rinse solution (10) has a vertex angle ([beta]) in the range of 90 [deg.] To 135 [deg.]. 4. The method according to any one of claims 1 to 3,
The sectoral shape formed by each of the bailings 11 of the first rinsing liquid 10 may extend substantially vertically or may extend at an angle of 25 degrees toward the first side wall 103 and at an angle of 25 degrees with respect to the second side wall 105 Extending in a direction inclined with respect to the vertical line while forming an angle (alpha) included in a range of 45 DEG toward the vertical line together with the vertical line. 4. The method according to any one of claims 1 to 3,
The flux of the first cleaning liquid 10 sent out by the first spraying means 200 flows through the first and second cleaning liquids 20 and 20 sent out by the first spraying means and the second spraying means 300, ) Of the cumulative flux of the exhaust gas of the engine. 4. The method according to any one of claims 1 to 3,
Wherein the first cleaning liquid (10) or the second cleaning liquid (20) contains seawater. 4. The method according to any one of claims 1 to 3,
Wherein the soot (1) is immersed by quenching before entering the interior of the washer (100), thereby wet-cleaning the exhaust gas of an engine for a maritime vessel. An apparatus for wet-cleaning an exhaust gas of an engine for a navigation ship,
And a scrubber (100) having a first side wall (103) and a second side wall (105) having rectangular horizontal sections and opposite to each other along the longitudinal direction of the rectangular horizontal section,
The first side wall of the scrubber is provided with an opening (107) for passing the soot, and inside the scrubber:
- a first spraying means (200) located below the washer (100) and adapted to dispense the first washer fluid (10) in the form of bails (11), wherein the bails are simultaneously sprayed upward in a fan shape, Is disposed horizontally facing the opening (107) and is distributed between the first sidewall and the second sidewall so that the soot (1) penetrates substantially horizontally into the interior of the washer (100) through the opening A first spraying means (200) for traversing the veils and deflecting upward, and
The second cleaning liquid 20 is positioned in the upper part of the washer 100 and is designed to discharge the second cleaning liquid 20 in the form of a lane 21 and has a larger spray density toward the second sidewall 105 than the first sidewall 103 And a second spraying means (300) arranged to distribute the lanes (21) of the second cleaning liquid (20) on the rectangular horizontal section, the lanes being connected to the second spraying means And the free volume of the washer (100), which extends to the means and is freely circulated in such a manner that the soot refracted upward by the bails (11) of the first washer fluid (10) rises in counter to the lanes of the second washer fluid (300), which is sprayed downward in the first spraying means (V100)
A facility for wet-cleaning the exhaust gas of a marine vessel engine. 9. The method of claim 8,
The first spraying means 200 comprises three or more rows and the heat is distributed between the first and second side walls 103 and 105 and comprises one or more spray nozzles 201, Equipment for wet cleaning of marine engine exhaust gases. 10. The method according to claim 8 or 9,
The first spraying means (200) includes a flat jet nozzle (201) for wet cleaning the exhaust gas of an engine for a ship.

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