KR101857212B1 - Exhaust gas treatment equipment including diverting means - Google Patents

Exhaust gas treatment equipment including diverting means Download PDF

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Publication number
KR101857212B1
KR101857212B1 KR1020170107086A KR20170107086A KR101857212B1 KR 101857212 B1 KR101857212 B1 KR 101857212B1 KR 1020170107086 A KR1020170107086 A KR 1020170107086A KR 20170107086 A KR20170107086 A KR 20170107086A KR 101857212 B1 KR101857212 B1 KR 101857212B1
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South Korea
Prior art keywords
exhaust gas
cleaning liquid
housing
present
flow
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KR1020170107086A
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Korean (ko)
Inventor
이수태
이수규
김용섭
진성재
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주식회사 파나시아
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B01D47/063—Spray cleaning with two or more jets impinging against each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J4/00—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Public Health (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toxicology (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Health & Medical Sciences (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

The present invention relates to an apparatus comprising a diffusion means for treating exhaust gas, and a method therefor. More specifically, an apparatus for treating exhaust gas comprises: a housing including a gas entrance hole and a gas discharging hole for introducing and discharging exhaust gas produced by combustion; and a diffusion means. The diffusion means includes a cylindrical body with the empty inside covering the upper side of a gas entrance pipe, for inducing the exhausted gas introduced through the gas entrance pipe and flowing into one side to be diffused. The diffusion means additionally comprises a conical blocking stopper to prevent falling water drops from flowing into the gas entrance pipe, thereby preventing water drops from being stagnated on the top of the blocking stopper.

Description

[0001] Exhaust gas treatment equipment including diverting means [0002]

The present invention relates to an exhaust gas processing apparatus including a diffusion means and a method thereof, and more particularly, to an exhaust gas processing apparatus including a housing having a gas inlet and a gas outlet through which exhaust gas generated by combustion flows, Wherein the exhaust gas processing apparatus includes diffusion means and the diffusion means includes an empty cylindrical body that covers the upper side of the gas inlet pipe and flows through the gas inlet pipe so that the exhaust gas having a flow deflected toward one side is diffused , And a conical stopper is provided on the body so as to prevent water droplets from falling on the shutoff stopper so as to prevent falling water from flowing into the gas inlet pipe, and a method therefor Lt; / RTI >

Most modern ships are equipped with engines and boilers for their own power and heating. In order to drive the engine and the boiler, fuel must be burned. The exhaust gas generated in the combustion process includes harmful substances such as SOx, NOx, PM (Particular Matter, Particulate Material) have.

Sulfur oxides and nitrogen oxides can cause respiratory illness by acting on the mucous membranes of the human body, and they are pollutants designated by the International Agency for Research on Cancer (WHO) as a primary carcinogen. When the SOx and NOx are released into the air as they are, they react with water (H 2 O) in the atmosphere and become sulfuric acid (H 2 SO 4 ) and nitric acid (HNO 3 ), respectively.

PM is a form of small particles compared to gaseous pollutants. PM is emitted into the atmosphere as it is, and it can cause visibility disorder that reduces visibility, or fine particles can enter the human body through the lungs or respiratory tract and cause various diseases . In recent years, fine dust that is a problem in Korea is also caused by PM, which is considered to be the main cause of air pollution.

Therefore, it is necessary to prevent such harmful substances in the exhaust gas. In particular, in the case of a ship, it is known that the output of the engine is large, so that it emits exhaust gas of 130 times that of a passenger car. In order to prevent the emission of a large amount of harmful substances Specific and practical measures are required for the exhaust gas of the ship.

Therefore, the International Maritime Organization (IMO) has set up an Emission Control Area (ECA) to limit the emission of hazardous substances in the sea area. In particular, the SOx Emission Control Area (SECA) has been stricter than the ECA, which regulates other harmful substances such as NOx.

Furthermore, from January 1, 2015, the regulations were further strengthened to limit sulfur content in the fuel to 0.1% (IMO 184 (59)), which causes environmental pollution for all ships passing through the SECA. The SECA was extended to North America from the Baltic and North Sea regions through the amendment of the Convention on Marine Pollution Prevention in August 2011 and will be extended from April 1, Sulfate management is likely to become more important.

In addition to the ECA, legislation to regulate the SOx content in the exhaust gas to 3.5% or less in the waters around the world is scheduled to be implemented by 2020 from 0.5% at the IMO General Assembly held on October 28, 2016, The need for sulfuric acid management is growing even more.

In order to comply with these international regulations, LNG propellant lines, which use low sulfur or low-sulfur natural gas as fuel, are used, but scrubbers that reduce the sulfur oxides of the exhaust gas are used It is also said.

When the post-treatment process is performed using a scrubber, it is economically advantageous to satisfy the above-mentioned regulations even with a low-cost fuel having a relatively high sulfur content and to prevent environmental pollution. As such, the scrubber can meet both economic and environmental requirements, making it highly versatile enough to be used in ships as well as power plants.

<Patent Literature>

US Patent No. 9,272,241 entitled " COMBINED CLEANING SYSTEM AND METHOD FOR REDUCTION OF SOX AND NOX IN EXHAUST GASES FROM A COMBUSTION ENGINE "

The invention disclosed in the patent document discloses a scrubber for absorbing SOx and PM in the exhaust gas. The scrubber ionizes SOx with a cleaning liquid. When sea water having a pH of about 8.3 is used, there is an advantage that the ionized sulfur oxide can be neutralized without a separate alkaline additive. In addition, the particulate matter may be agglomerated and discharged together with the cleaning liquid to prevent release into the atmosphere.

However, the above-described invention shows a schematic diagram of the circulation process of the exhaust gas and the cleaning liquid including the scrubber, but does not mention the specific shape inside the scrubber and the cleaning method.

The scrubber has a very long shape up and down, which takes up a large volume of the vessel, which is inefficient in terms of space utilization and damages the ship's aesthetics. Therefore, there is a need for a method of lowering the height of the scrubber, which does not disclose any solution to this problem.

The exhaust gas flowing into the scrubber is dispersed evenly in the processor to improve the working efficiency using the cleaning liquid.

In addition, since the cleaning liquid and the exhaust gas must be mixed smoothly, the contact time and the contact area between the cleaning liquid and the exhaust gas are increased, so that the cleaning operation can be performed properly. Therefore, the mixing method can be regarded as one of important performances of the scrubber. It is not.

In addition, when the exhaust gas is discharged through the scrubber, the pressure loss occurs due to the seawater injection and the path disturbance due to the structure. However, such pressure loss is numerically expressed and is important for the performance of the scrubber. And there is no provision in this document.

There is a problem that the cleaning liquid such as the seawater injected into the scrubber flows backward into the engine and the boiler in which the exhaust gas is discharged. However, the Patent Document does not describe a countermeasure thereto.

The amount of exhaust gas discharged depending on the load of the engine or the boiler is variable. However, the patented invention that injects the cleaning liquid in a lump without consideration of such a flow change has a problem in that the efficiency in the operation is inferior.

A filter such as a demister (water separator) for removing minute particles in the exhaust gas must be cleaned with a hole when used for a long period of time, and a method for cleaning such a demister is also required.

Finally, there is also a need to prevent the phenomenon that the cleaning liquid absorbing harmful substances in the exhaust gas is discharged into the atmosphere along with the flow of the exhaust gas.

Therefore, it is possible to minimize the pressure loss of the exhaust gas and uniformly disperse it, effectively mix the sulfur oxides and the PM with the cleaning liquid to effectively remove the harmful substances, thereby reducing the volume of the scrubber while discharging only the clean gas. There is a need for an exhaust gas treating apparatus capable of flexibly adapting to improve working efficiency and preventing engine backflow of the cleaning liquid.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

An object of the present invention is to provide an exhaust gas processing apparatus with high cleaning efficiency as the exhaust gas is widely diffused in the housing to increase the contact time and contact area with the cleaning liquid.

It is another object of the present invention to provide an exhaust gas processing apparatus having a structure capable of preventing reverse flow due to flow of a cleaning liquid dropping the exhaust gas.

It is still another object of the present invention to provide an exhaust gas processing apparatus capable of preventing the falling cleaning liquid from entering the gas inlet, flowing back to the engine, and causing a mechanical failure situation.

It is still another object of the present invention to provide an exhaust gas processing apparatus capable of minimizing the pressure loss of the exhaust gas by naturally discharging the cleaning liquid.

It is still another object of the present invention to provide an exhaust gas processing apparatus including a cleaning liquid outlet and capable of continuously performing a cleaning operation by discharging a cleaning liquid along an inclined surface generated when the exhaust gas processing apparatus is inclined.

It is still another object of the present invention to provide an exhaust gas treatment device installed on a ship for treating harmful substances generated in an engine or a boiler of a ship.

It is still another object of the present invention to provide an exhaust gas processing apparatus for increasing a contact area between a cleaning liquid and an exhaust gas, thereby improving the cleaning efficiency and reducing the height of the housing, thereby enhancing the space utilization.

It is still another object of the present invention to provide an exhaust gas processing apparatus for uniformly distributing a flow of exhaust gas deviated to an inner wall surface in a housing cross section to improve cleaning efficiency.

It is still another object of the present invention to provide an exhaust gas processing apparatus that selectively injects a cleaning liquid in accordance with an operation rate of an engine or a boiler and increases the cleaning efficiency by enlarging a contact area with the exhaust gas.

It is still another object of the present invention to provide an exhaust gas treatment apparatus capable of preventing harmful substances from being released into the atmosphere by rotating the exhaust gas in a spiral manner to separate the washing liquid water.

It is still another object of the present invention to provide an exhaust gas processing apparatus capable of preventing the flow of exhaust gas while dropping the separated washing liquid water without interrupting the flow of the exhaust gas.

It is still another object of the present invention to provide an exhaust gas treatment apparatus capable of preventing the amount of a cleaning liquid including harmful substances such as SOx or PM from being released to the atmosphere.

In order to achieve the above object, the present invention is implemented by the following embodiments.

According to one embodiment of the present invention, an exhaust gas processing apparatus including diffusion means according to the present invention includes an exhaust gas processing apparatus including a housing having a gas inlet portion through which exhaust gas generated by combustion flows, and a gas outlet portion The exhaust gas treatment apparatus includes diffusion means for dispersing the exhaust gas, thereby enabling efficient cleaning of harmful substances.

According to another embodiment of the present invention, there is provided an exhaust gas treatment apparatus including diffusion means according to the present invention, wherein the diffusion means includes a body covering the upper side of the gas inflow pipe, and flows through the gas inflow pipe, So that the exhaust gas can be diffused.

According to another embodiment of the present invention, an exhaust gas treatment apparatus including diffusion means according to the present invention is formed in a cylindrical shape in which the inside of the body is hollow, and guides the introduced exhaust gas to escape downward .

According to another embodiment of the present invention, an exhaust gas treatment apparatus including diffusion means according to the present invention includes a shutoff stopper on the body so as to prevent a water drop falling by the diffusion means from flowing into the gas inlet pipe .

According to another embodiment of the present invention, an exhaust gas treatment apparatus including diffusion means according to the present invention is characterized in that the blocking stopper is formed in a conical shape to prevent the falling water from sticking to one side.

According to another embodiment of the present invention, the exhaust gas processing apparatus including the diffusion means according to the present invention is characterized in that the cleaning liquid flows out through a rinse solution outlet portion formed at one side of the bottom of the housing to maintain a constant flow rate in the housing, Is performed.

According to another embodiment of the present invention, an exhaust gas treatment apparatus including diffusion means according to the present invention is characterized in that the exhaust gas treatment device is installed on a ship.

According to another embodiment of the present invention, the exhaust gas processing apparatus including the diffusion means according to the present invention further comprises a cleaning liquid injection means on the diffusion means, and the injection means includes a lateral injection means And the space between the exhaust gas and the cleaning liquid dispersed in the diffusion means is widened to improve the working efficiency while reducing the height of the housing to improve space utilization.

According to another embodiment of the present invention, an exhaust gas treatment apparatus including diffusion means according to the present invention further comprises a distributing means above the injecting means, and the distributing means includes a mesh structure including a plurality of small through holes And an inclined portion in the form of an upwardly projecting bulge which is gradually increased toward the upper portion. By forming a large through hole below the inclined portion, the flow of the exhaust gas deflected toward the inner wall surface is evenly distributed to improve the processing efficiency.

According to another embodiment of the present invention, an exhaust gas treatment apparatus including diffusion means according to the present invention includes a multi-injection means having a first injection means, a second injection means and a third injection means on the upper side of the distribution means The first injection means, the second injection means, and the third injection means are arranged alternately up and down to enlarge the contact area with the exhaust gas. The first injection means, the second injection means, and the third injection means are selectively operated according to the load of the engine or the boiler, .

According to another embodiment of the present invention, an exhaust gas treatment apparatus including diffusion means according to the present invention includes numerical separating means on the upper side of the multiple injection means, and the numerical separating means includes an induction portion And at least one vane formed on the upper side of the guide portion to induce a spiral flow of the exhaust gas from the guide portion.

According to another embodiment of the present invention, an exhaust gas treatment apparatus including diffusion means according to the present invention includes a numerical collection means for collecting the water droplets separated by the water separating means, .

According to another embodiment of the present invention, an exhaust gas treatment apparatus including diffusion means according to the present invention includes numerical-value blocking means for blocking a water level ascending on an inclined surface of a housing on the upper side of the numerical separating means, The blocking means may include a blocking wall extending from one side of the sloping surface to the bottom so as to effectively block the water droplet that rises on the inner wall.

The present invention can obtain the following effects by the above-described embodiment, the constitution described below, the combination, and the use relationship.

According to the present invention, since the exhaust gas is widely diffused in the housing and the contact time with the cleaning liquid and the contact area are increased, the cleaning efficiency is high.

Further, the present invention has the effect of preventing the reverse flow of the exhaust gas due to the influence of the flow of the cleaning liquid falling down.

Further, the present invention has the effect of preventing the cleaning fluid including the blocking portion from falling into the gas inlet, flowing back to the engine, and causing a mechanical failure situation.

Further, the present invention has the effect of minimizing the pressure loss of the exhaust gas by naturally discharging the cleaning liquid.

In addition, the present invention has an effect that the cleaning liquid can be continuously discharged by discharging the cleaning liquid along the inclined surface generated when the exhaust gas processing apparatus is inclined, including the cleaning liquid outlet portion.

Further, the present invention can provide an effect of treating harmful substances generated in an engine or a boiler of a ship by installing an exhaust gas treatment device on the ship.

Further, the present invention provides an effect of increasing the space efficiency by reducing the height of the housing while increasing the cleaning efficiency by widening the contact area between the cleaning liquid and the exhaust gas.

Further, the present invention can obtain the effect of increasing the cleaning efficiency by uniformly distributing the flow of the exhaust gas, which includes the distributing means, to the inner wall surface in the housing cross section.

Also, the present invention has the effect of increasing the cleaning efficiency by selectively spraying the cleaning liquid depending on the operation rate of the engine or the boiler including the multiple injection means and widening the contact area with the exhaust gas.

In addition, the present invention has the effect of preventing the emission of harmful substances into the atmosphere by separating the washing liquid water by spirally rotating the exhaust gas including the water separating means.

In addition, the present invention can achieve the effect of preventing the exhaust gas from flowing out while dropping the separated washing liquid water including the water collecting means without obstructing the flow of the exhaust gas.

In addition, the present invention can obtain the effect of preventing the water of the cleaning liquid including the harmful substances such as sulfur oxides (SOx) or PM from being discharged to the atmosphere including the water blocking means.

1 is a perspective view showing an exhaust gas processing apparatus according to an embodiment of the present invention.
2 is a partially cutaway perspective view showing an exhaust gas processing apparatus according to an embodiment of the present invention.
3 is a cross-sectional view of f1-f1 'showing an exhaust gas processing apparatus according to an embodiment of the present invention.
4 is an exploded perspective view showing diffusion means according to an embodiment of the present invention.
5 is a sectional view taken along the line aa 'of the region A showing the diffusion means according to the embodiment of the present invention.
6 is a sectional view taken along the line aa 'of a region A in which the diffusion means according to the embodiment of the present invention is inclined by the rolling of the ship.
FIG. 7 is a sectional view taken along the line aa 'of the A zone showing the flow of the exhaust gas through the diffusion unit according to the embodiment of the present invention.
8 is a perspective view showing the injection means according to the embodiment of the present invention.
FIG. 9 is a cross-sectional view taken along the line b1-b1 'of the region B showing the injection means according to the embodiment of the present invention.
10 is a cross-sectional view taken along the line b2-b2 'of the region B showing the injection means according to the embodiment of the present invention.
11 is a conceptual diagram showing a state in which the spraying means injects the cleaning liquid according to the embodiment of the present invention.
12 is a perspective view showing a dispensing means according to an embodiment of the present invention.
FIG. 13 is a cross-sectional view taken along line c1-c1 'of section C showing the dispensing means according to the embodiment of the present invention.
14 is a cross-sectional view taken along line c2-c2 'of section C showing the dispensing means according to the embodiment of the present invention.
FIG. 15 is a cross-sectional view taken along line c1-c1 'of A, B, and C zones showing the flow of exhaust gas by the distributing means according to the embodiment of the present invention.
16 is a perspective view showing the multiple injection means according to the embodiment of the present invention.
FIG. 17 is a cross-sectional view taken along the line d1-d1 'of the section D showing the multiple injection means according to the embodiment of the present invention.
FIG. 18 is a cross-sectional view taken along the line d2-d2 'of the region D showing the multiple injection means according to the embodiment of the present invention.
FIG. 19 is a cross-sectional view taken along line d2-d2 'of a region D showing the multiple injection means according to the embodiment of the present invention.
20 is an exploded perspective view showing the first type of water separating means according to the embodiment of the present invention.
21 is a cross-sectional view taken along the line e1-e1 'of the E zone showing the first type of water separating means according to the embodiment of the present invention.
22 is a sectional view taken along the line e2-e2 'of the E zone showing the first type of water separating means according to the embodiment of the present invention.
23 is a perspective view showing a state in which exhaust gas flows by the first type of water separating means according to the embodiment of the present invention.
24 is an exploded perspective view showing the second type of water separating means according to the embodiment of the present invention.
25 is a cross-sectional view taken along the line e1-e1 'of the E zone showing the second type of water separating means according to the embodiment of the present invention.
26 is a sectional view taken along the line e2-e2 'of the E zone showing the second type of water separating means according to the embodiment of the present invention.
27 is a perspective view showing a state in which exhaust gas flows by the second type of water separating means according to the embodiment of the present invention.
28 is a perspective view of the E and D zones showing the water collecting means according to the embodiment of the present invention.
29 is a cross-sectional view taken along the line e1-e1 'of the E, D zone showing the water collecting means according to the embodiment of the present invention.
30 is a partially cutaway perspective view showing the numerical blocking means according to the embodiment of the present invention.
31 is a cross-sectional view taken along the line f1-f1 'of section F illustrating the numerical aperture blocking means according to the embodiment of the present invention.

Hereinafter, an exhaust gas processing apparatus including diffusion means according to the present invention will be described in detail with reference to the accompanying drawings. It is to be noted that the same elements among the drawings are denoted by the same reference numerals whenever possible. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Unless defined otherwise, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs and, if conflict with the meaning of the terms used herein, It follows the definition used in the specification.

Hereinafter, an exhaust gas treatment apparatus including diffusion means of the present invention will be described in detail with reference to the drawings.

First, a schematic configuration of an exhaust gas treating apparatus according to the present invention and a flow of an exhaust gas will be described with reference to FIGS. 1 to 3. FIG.

1, an exhaust gas from an engine or a boiler is supplied to an exhaust gas treatment device 17 including harmful substances such as sulfur oxides (SOx), nitrogen oxides (NOx), and particulate matter (PM) The exhaust gas treatment device 17 may include a housing 171 in which a plurality of means for reducing the harmful substances are provided step by step.

2 to 3, the housing 171 may have various shapes in the form of a large barrel having an empty interior. In general, the housing 171 has a cylindrical housing 171, An inner wall surface 1711 forming an outer appearance is divided into a gas inflow portion 1712 through which the exhaust gas enters and a rinse solution outlet portion 1715 through which the sprayed cleaning solution escapes and a gas outlet portion 1713 through which the exhaust gas exits, . &Lt; / RTI &gt;

The inner wall surface 1711 may include a vertical surface 1711a that extends upward and downward and an inclined surface 1711b that is bent and extended from the vertical surface 1711a in the vicinity of the gas outlet 1713, The wall surface 1711 may have a function of rinsing the washing liquid introduced from the spraying means 173 or the like, which will be described later, along the flow of the exhaust gas.

The gas inlet 1712 may include a gas inlet pipe 1712a that protrudes inward of the housing 171 and communicates with one side of a diffusion unit 172 which will be described later. Is formed as a hollow hollow cylinder having a function as a passage through which exhaust gas can flow.

The cleaning liquid outlet 1715 includes a cleaning liquid outlet pipe 1715a extending from a bottom surface of the housing 171 to a lower portion of the housing 171 by a predetermined length, In many cases, the inside is formed as a hollow hollow cylinder for discharging the cleaning liquid. In case of installing on a ship, it is possible to smoothly discharge the cleaning solution on one side according to the inclination of the ship without a separate bottom surface inclination due to a rolling phenomenon rolling the hull to the left and right and a pitching phenomenon to lean forward and backward.

The gas outlet 1713 is provided with a large hole for discharging the clean gas to a place where the clean gas from which harmful substances are removed is discharged into the atmosphere in the exhaust gas treatment device 17, So as to block the water droplet that rises on the inner wall surface 1711.

Next, referring to FIGS. 2 to 31, the exhaust gas flowing into the housing 171 of the exhaust gas treatment device 17 is cleaned in stages to finally remove sulfur oxides (SOx) and particulate matter (PM) I will explain various means of discharging cleaned gas.

2 and 3, the exhaust gas treatment device 17 according to the present invention is positioned above the gas inlet 1712 and diffuses the exhaust gas evenly inside the housing 171 Means 173 for spraying the cleaning liquid on the upper side thereof, distributing means 174 for discharging the exhaust gas on the upper side of the injecting means 173, A number sorting means 176 for guiding the spiral flow of the exhaust gas onto the multiple injection means 175 and a number collecting means 177 for collecting the water drops separated from the lower portion of the number sorting means 176, And a numerical aperture blocking means 178 for dropping the water droplets riding on the inner wall surface 1711 in the vicinity of the gas outflow portion 1713.

4 to 7, the diffusion unit 172 has a function of uniformly dispersing the exhaust gas flowing in the gas inlet 1712 into the housing 171, and includes a cylindrical body 1721, And a blocking cap 1722 located on the upper side of the body 1721.

4 and 5, the body 1721 is positioned above the gas inlet pipe 1712a, and has a cylindrical shape having an inner space 1721a which is a passage through which the exhaust gas can move, . And a lower outlet 1721b is formed on the lower side to allow the exhaust gas flowing into the internal space 1721a to be discharged.

The exhaust gas generated from the engine or the boiler is cleaned by the cleaning liquid sprayed from the inside of the housing 171. At this time, the contact area with the cleaning liquid must be maximized to maximize the cleaning efficiency. However, since the gas inlet pipe 1712a has to be narrower than the bottom surface area of the housing 171, the exhaust gas flowing through the gas inlet pipe 1712a has a flow deflected toward one side of the housing 171. [ Such a deflected flow has a narrow contact area with the cleaning liquid and a fast discharge speed due to a narrow flow cross-sectional area, so that the contact time with the cleaning liquid is inevitably short. As a result, the cleaning efficiency is lowered and the sulfur oxides and PM in the exhaust gas can not be effectively removed. As a result, the exhaust gas containing such harmful substances is released into the atmosphere, resulting in air pollution.

In order to solve this problem, in the present invention, the exhaust pipe exhaust gas is distributed through the gas inlet pipe 1712a as widely as possible within the housing 171, and the body 1712 distributes the exhaust gas widely.

7, the exhaust gas flowing into the housing 171 through the gas inlet pipe 1712a enters the internal space 1721a formed in the body 1712, Is blocked by the inner circumferential surface of the body (1712) and the blocking cap (1722), and is bypassed without going upward. The flow of the exhaust gas thus bypassed flows out of the body 1721 through the lower outlet 1721b so that it passes through the larger cross sectional area than the gas inlet pipe 1721a and is dispersed and raised outside the housing 171. [

The blocking cap 1722 is located on the upper side of the body 1721 and has a shape in which the upper side is closed to prevent the cleaning liquid injected from the injection means 173 or the like from dropping into the gas inflow pipe 1712a , And preferably has a conical shape with its apex pointing upward.

An exhaust gas treating apparatus 1 for treating sulfur oxide and PM in the exhaust gas is connected to an engine or a boiler for introducing exhaust gas. Therefore, if the cleaning liquid flows into the gas inlet pipe 1712a, there is a risk of causing a mechanical failure of the engine or the boiler. Particularly, in the case where the gas inflow portion 1712 is located on the lower side and the cleaning liquid is dropped from the top down as in the present invention, the risk is even greater. Therefore, in the present invention, it is possible to prevent the failure of the engine or the boiler by including the shutoff stopper 1722 which can block the inflow of the cleaning liquid falling on the body 1721. Further, when the blocking cap 1722 is formed in a conical shape, the number of washing liquid dropped on the blocking cap 1722 can be prevented from being increased, and it is possible to naturally flow to the bottom of the housing 171.

The cleaning liquid flowing down from the blocking cap 1722 is accumulated on the bottom surface of the housing 171. The cleaning liquid collected therefrom is supplied to the cleaning liquid outlet 1715 extending from the bottom of the housing 171 downward at a predetermined angle And is discharged to the outside of the exhaust gas treatment device 17. [ In this case, the rinse solution outlet 1715 can be biased to only one side. If the bottom surface of the housing 171 does not have a separate inclined surface, pitching, The whole of the housing 171 is inclined due to rolling phenomenon caused by the development, rotation, or the like of the hull to be tilted to the left or right, so that the cleaning liquid can be smoothly discharged and the accumulation on the floor surface can be prevented. The manner in which the housing 171 is lifted in this manner can be seen in more detail in Fig.

8 to 11, the spraying unit 173 has a function of spraying a cleaning liquid from above the diffusion unit 172 and cleaning the exhaust gas including sulfur oxides (SOx) and PM. Particularly, Side injection means 1731 for injecting the exhaust gas from the side of the exhaust gas in the flow direction.

Referring to FIG. 8, the lateral jetting means 1731 may include a jet body 1731a and a jetting port 1731b to jet a cleaning liquid onto the exhaust gas.

The injection body 1731a is connected to the inner wall surface 1711 of the housing 171 as a rod-shaped supply pipe for supplying the cleaning liquid. When the housing 171 is cylindrical, the injection body 1731a may also be circularly distributed Particularly, if it is located in the space formed by being inserted into the inner wall 1711 outwardly at a certain depth, the injection means 1731 itself prevents the flow of the exhaust gas and prevents the pressure loss due to the structure.

The jetting port 1731b is formed at one end of the jetting body 1731a to jet the cleaning liquid, and is formed toward the side surface to jet the cleaning liquid to the side surface.

The exhaust gas generated by the combustion in the engine E or the boiler B includes harmful substances such as sulfur oxides (SOx) and PM which are acidic substances. The injecting means 173 neutralizes or coheses these harmful substances Thereby spraying a cleaning liquid to be removed. In general, 0.1 ~ 0.5um of PM is first aggregated by fine droplets (100 ~ 200um) and becomes bigger. In order to neutralize acidic sulfur oxides (SOx), a basic cleaning liquid is required. In the case of using fresh water, a separate alkaline additive is added to induce a neutralization reaction.

Wherein the alkaline additive is capable of such as NaOH (sodium hydroxide), Na 2 CO 3 (sodium carbonate) or NaHCO 3 (sodium bicarbonate). The neutralization reaction of sulfuric acid (SOx) by a cleaning liquid containing NaOH is as follows.

SO 2 (g) + 2NaOH ( aq) + (1/2) O 2 (g) → 2Na + + SO 4 2- + H 2 O

However, in the case where the exhaust gas treatment device 17 according to the present invention is installed on a ship operated on the sea, sea water, which is salt water, may be used. In general, seawater contains salts such as sodium chloride (NaCl), magnesium chloride (MgCl 2 ) and potassium chloride (KCl). PH is 7.8 ~ 8.3 due to the anions such as Cl - , SO 4 2- and Br - And the like. Therefore, if such seawater is used as a cleaning liquid, there is an advantage that neutralization of sulfur oxides (SOx) can be performed without adding an additional alkaline additive.

At this time, the neutralization reaction by seawater is as follows, first mixed with gaseous sulfur dioxide (SO 2 ) water.

SO 2 (g) + H 2 O (1) ↔ H 2 SO 3 (aq)

Next, it reacts with the base in seawater.

2H 2 SO 3 (aq) + OH - ↔ 2HSO 3 - (aq) + H + (aq) + H 2 O (aq)

2HSO 3 - (aq) + OH - (aq) ↔ 2 SO 3 2 - (aq) + H + (aq) + H 2 O (aq)

That is, sulfur dioxide is absorbed in seawater and becomes a sulfate through the above reaction.

The spraying means may spray a dual fluid containing compressed air in addition to the washing liquid composed of seawater or fresh water to spread the washing liquid in the housing 171 to increase the area of contact with the exhaust gas to improve the washing efficiency.

Further, the cleaning liquid and the compressed air may have a function of cooling the harmful substances such as SOx or PM in the exhaust gas by lowering the temperature of the exhaust gas itself. Generally, the exhaust gas generated as a by-product of combustion in the engine E and the boiler B is a high-temperature gas having a temperature of about 250 to 300 degrees at the time when it flows into the housing 171. If such a high temperature exhaust gas is directly discharged into the atmosphere, many problems arise, and various structures in the housing 171 may cause heat injury, and the cleaning liquid may be rapidly evaporated, causing a trouble in the cleaning operation . Also, even when the cleaning liquid is sprayed at a high temperature, there is a possibility that the PM may pass without passing through the agglomerated state. Therefore, the injecting means 173 injects seawater or a two-fluid mixture of fresh water and compressed air into the exhaust gas of high temperature entered into the housing 171 through the gas inlet 1712 to cool the temperature to about 50 to 60 degrees .

The function of the above-described injection means 173 is more effective when the contact area with the exhaust gas and the contact time are increased. The spraying means of the conventional exhaust gas processing apparatus injects the cleaning liquid so as to coincide with the flow direction of the exhaust gas, And the contact time was short. Therefore, there has been a problem that the cleaning operation and the cooling operation can not be effectively performed.

In addition, the exhaust gas treatment apparatus for cleaning and cooling sulfur oxides (SOx) and PM has a very long shape such as exceeding 5 m in the vertical direction. When installed in a power plant on the ground, Due to the large volume, it limits the design of the ship and damages the aesthetics. However, the conventional injection means has a problem that the exhaust gas processing device itself can not be made longer in order to ensure a sufficient contact area by spraying the cleaning liquid in parallel with the exhaust gas flow direction.

In this case, the flow of the exhaust gas is disturbed to the front, resulting in a great pressure loss. As described above, since the degree of pressure loss of the exhaust gas treatment device is numerically expressed (mmAq / m unit), it is an important factor to be used as an index indicating the performance thereof.

However, as shown in FIGS. 8 to 10, the exhaust gas treatment device 17 according to the present invention includes the side injection means 1731 inside the housing 171, so that the cleaning liquid and the compressed air can be supplied from the side of the flow of the exhaust gas The sufficient contact area and contact time between the exhaust gas and the cleaning liquid can be ensured without increasing the length of the housing 171, so that the neutralization reaction of sulfur oxides (SOx), the agglomeration of PM and the cooling reaction of the entire exhaust gas are smoothly generated. Particularly, when installed on the lower side of the inclined portion 1741 of the distributing means 174 to be described later, the cleaning liquid is sprayed to the point where the vortex is generated, so that the exhaust gas and the cleaning liquid can be actively mixed. Moreover, when the temperature is lowered by the cooling, the air is shrunk and the volume is reduced, so that there is also an effect that the PM particles agglomerate and grow relatively. Further, since there is a force on the side surface, there is an advantage that no pressure loss is caused in the flow direction of the exhaust gas. Preferably, it is preferably injected perpendicularly to the flow direction of the exhaust gas.

Also, referring to FIG. 11, it is possible to maximize the contact area with the exhaust gas and the contact time by distributing the two liquids of the cleaning liquid and the compressed air in a conical shape, thereby increasing the efficiency of the operation.

12 to 15, the distributing means 174 is located on the upper side of the injecting means 173, and is formed in a mesh structure including a plurality of through holes 174a, which are small holes, An inclined portion 1741 and a guide portion 1742 extending downward from the lower side of the inclined portion 1741. [

12 and 13, the inclined portion 1741 has an upward light-narrowing shape that becomes larger as it goes upward. This causes the flow of the exhaust gas to be drawn to the center, and the swirling flow from the lower side of the inclined portion 1741 So as to mix with the cleaning liquid.

The exhaust gas treatment device 17 is required to increase the contact area and the contact time evenly dispersed inside the housing 171 for an effective reaction between the cleaning liquid and the exhaust gas so that the exhaust gas passing through the diffusion means 172 passes through the body 1721 And tends to rise toward the inner wall surface 1711 of the housing 171. [ Therefore, in order to return the upward flow of the exhaust gas deflected toward the inner wall surface 1711 toward the center, a large number of small through holes 174a are formed, and the exhaust gas is broadened toward the upper side as a whole. With this configuration, the exhaust gas deflected toward the inner wall surface 1711 of the housing 171 passes through the plurality of through holes 174a inclined downward toward the center, is refracted inward, and the flow is dispersed to the center. Also, the flow of some exhaust gas that has not risen through the through hole 174a collides with the lower surface of the inclined portion 1741 and forms a vortex flow (vortex) in the process of detouring downward, so that the mixture of the cleaning liquid and the exhaust gas The neutralization reaction of sulfur oxides (SOx) and the agglomeration reaction of PM actively occur, and the cleaning effect is further improved.

Referring to FIGS. 12 and 14, the guide portion 1742 includes an inlet hole 1742a, which is a large hole in the middle, and has an inner hollow shape so that a large amount of exhaust gas can pass therethrough.

Mentioned inclined portion 1741 itself has a large effect of dragging the exhaust gas flow toward the center of the inner wall surface 1711 to the center but includes a large inflow hole 1742a at the center for performing a more reliable function. With this configuration, the exhaust gas whirled by the inclined portion 1741 is uniformly distributed to the center side to increase the cleaning efficiency. The vertically formed guide portion 1742 guides the flow of the exhaust gas so that such a distribution effect can be generated more effectively. The flow of the exhaust gas can be seen in Fig.

16 to 19, the multiple injection means 175 is located on the upper side of the distribution means 174, and a plurality of injection means are vertically arranged.

17, the multiple injection means 175 may include a first injection means 1751, a second injection means 1752 and a third injection means 1753. [

18, the first injection means 1751 includes a rod-shaped injection body 1751a, a plurality of injection belts 1751b branched from the injection body 1751a at regular intervals, And a plurality of ejection openings 1751c formed at regular intervals on the base 1751b.

The jetting body 1751a is connected to the inner wall surface 1711 of the housing 171 as a supply pipe for supplying a cleaning liquid from the outside.

The jetting base 1751b is branched from the jetting body 1751a and is configured to jet the cleaning liquid into a wider space. The jetting base 1751b is disposed to be offset from the jetting base 1752b of the second jetting means 1752, The area can be maximized. In addition, it eliminates the dead zone of the exhaust gas and prevents the harmful substances from being released to the atmosphere as it is.

A plurality of jetting ports 1751c are formed at predetermined positions of the jetting base 1751b to jet a mixture of the cleaning liquid and the compressed air.

Referring to FIG. 19, the second injection means 1752 likewise includes the injection body 1752a, the injection stage 1752b, and the injection port 1752c, but the respective injection stages are arranged to be shifted as described above. With this configuration, the contact area between the cleaning liquid and the exhaust gas injected by each of the injection means is maximized, so that the neutralization reaction of sulfur oxides (SOx) and the agglomeration reaction of PM can be effectively produced.

The first injecting means 1751 and the second injecting means 1752 can be selectively operated according to the operation states of the engine E, the boiler B, and the like. At this time, the controller 1754 may further include a controller 1754 for the selective injection to control the injection according to the driving state of the engine or the boiler.

Generally, the engine (E) used in ships changes its operation rate constantly, such as when the ship is accelerating or decelerating, when the drill for drilling the seabed is operated, or when the amount of power system used increases. Also, the boiler (B) is rarely used in hot summer days, but when it is cold winter, it is often used to maintain the temperature of the crew members and to control the temperature of the cargo. Thus, the running state of the engine E or the boiler B is continuously changed, which means that the amount of combustion of the fuel is changed. When the amount of combustion of the fuel changes, the amount of exhaust gas generated by combustion also varies. The amount of harmful substances such as sulfur oxides (SOx) and PM is also changed when the exhaust gas amount is changed.

However, if the amount of the cleaning liquid sprayed from the exhaust gas treatment device 17 is constant even if the amount of exhaust gas is reduced, an unnecessary cleaning liquid is sprayed. In order to inject the cleaning liquid, the pump must be operated. Since the pump is operated by electric power, unnecessary injection means waste of unnecessary electric power. In addition, unlike the case of spraying a washing solution using weak water with a pH of about 8.3, it is necessary to add an alkaline additive in case of making a washing solution using fresh water, and when an unnecessary washing solution is sprayed, the alkaline additive is also wasted. Therefore, there is a need to adjust the injection amount of the cleaning liquid corresponding to the exhaust amount of the exhaust gas, which varies depending on the operation state of the engine E or the boiler B.

The multiple injection means 175 of the exhaust gas processing apparatus 17 according to the present invention is capable of selectively and selectively supplying the first injection means 1751 and the second injection means 1752 in accordance with the operation ratios of the engine E and the boiler B So that the above-described problems can be solved. With this configuration, when the amount of exhaust gas discharged is small, only a part of the injecting means is activated to inject the washer fluid, thereby preventing waste of electric power for operation of the pump and saving alkaline additive.

The multiple injection means 175 further includes a third injection means 1753 above the first injection means 1751 and the second injection means 1752 to enable efficient cleaning of harmful substances in the exhaust gas .

At this time, like the relation between the first injection means 1751 and the second injection means 1752, the third injection means 1753 is staggered with the second injection means 1752 to enlarge the contact area between the cleaning liquid and the exhaust gas It is possible to more effectively induce the neutralization reaction of sulfur oxides (SOx) and the coagulation action of PM.

The third injecting means 1753 is also selectively operated corresponding to the amount of exhaust gas discharged depending on the operation rate of the engine E or the boiler B to prevent waste of electric power of the pump for supplying the washing liquid, You can save.

The first spraying means 1751, the second spraying means 1752 and the third spraying means 1753 spray not only the cleaning liquid composed of seawater or fresh water but also the compressed air, So that the contact time and contact area between the sulfur oxides (SOx) and the cleaning liquid can be increased to facilitate the neutralization reaction. Also, the cooling action by the compressed air can be more effectively achieved.

20 to 27, the numerical separating means 176 is located on the upper side of the multiple injection means 175, and is roughly divided into two types.

Referring to FIG. 20, the first type includes an induction portion 1761 that is cleaned by a cleaning liquid and guides the flow of the exhaust gas that has been raised, and at least one horizontal blade that forms a spiral flow of the exhaust gas raised through the induction portion 1761. [ (1762a), a stopper (1764) for blocking the flow of exhaust gas in the upper and lower portions of the vane (1762a) and flowing in a predetermined direction, a first negative pressure preventing means (1763a) for preventing differential pressure from above the horizontal vane (1762a) ).

Referring to FIG. 24, the second type includes a guide portion 1761 for guiding the flow of the exhaust gas cleaned by the cleaning liquid and guided through the guide portion 1761, and a torsion blade 1762b for forming a helical flow of the exhaust gas raised through the guide portion 1761 And second negative pressure preventing means 1763b for preventing differential pressure on the upper side and the side surface of the torsion blade 1762b.

Referring to FIGS. 20, 21, 24, and 25, the guiding portion 1761, which is a common configuration of the two types, includes a lower guiding plate 1761a narrowed toward the upper side, And a guide tube 1761b extending upwardly.

The induction plate 1761a preferably has a hollow truncated conical shape and has a function of guiding the exhaust gas raised via the multiple injection means 175 to the center. At this time, in order to send only one side without leaking exhaust gas, it is possible to construct airtightly to fit into the inner wall surface 1711 with a circumference corresponding to the end surface of the housing 171.

The induction pipe 1761b extends upward from the upper side of the induction plate 1761a and functions as a passageway for upwardly moving the exhaust gas led to the one side by the induction plate 1761a. As shown in FIG.

Referring to FIG. 21, one or more horizontal wings 1762a of the first type are provided on a lower plate 1764b to be described later, and are laid sideways with a constant curvature. The horizontal vanes 1762a are spaced apart from each other by a predetermined distance so that exhaust gas can pass through the horizontal vanes 1762a. The horizontal wing 1762a of this shape induces a radial flow in which the exhaust gas raised through the induction pipe 1761b flows in a spiral manner to the side.

The cleaning liquid jetted from the multiple jetting unit 175 exists in a small number of droplets in the exhaust gas, and includes many harmful substances such as SOx and PM. Accordingly, the vane 1762 forms a spiral flow of the exhaust gas, and the centrifugal force generated by the vane 1762 causes the relatively heavy water to be outwardly directed to the inner wall surface 1711, Thereby separating the exhaust gas from the water droplet.

In addition, all the horizontal blades 1762a may be configured as a stationary stator. When rotating like a compressor, the speed becomes excessively high, and the cleaning operation becomes inefficient because the contact time between the exhaust gas and the cleaning liquid is insufficient.

The stopper 1764 may include an upper plate 1764a and a lower plate 1764b that cover the upper and lower sides of the horizontal vane 1762a to prevent the exhaust gas from escaping up and down without forming a spiral flow . The upper plate 1764a and the lower plate 1764b may have the shape of a circular plate when the horizontal vanes 1762a are circularly distributed.

When the exhaust gas flows into the spiral by the vane 1762, a centrifugal force is applied and the fluid is concentrated to the inner wall surface 1711 and the center is relatively lowered in pressure. In this case, the spiral flow may not be formed properly due to the differential pressure, or the pressure may be lower than the air on the upper side, which may interfere with the upward movement. Therefore, there is a need to arrange the mass at the center of the spiral flow to prevent sound pressure.

Accordingly, the first negative pressure preventing means 1763a is located above the horizontal vane 1762a to prevent differential pressure due to the spiral flow of the exhaust gas, and preferably has a conical shape from above the upper plate 1764a. The flow of the exhaust gas by this can be seen in FIG.

24 and 26, at least one torsion blade 1762b is distributed along the outer surface of the induction pipe 1761b and the inner wall surface 1711 of the housing 171, starting from the outer surface of the induction pipe 1761b, In a radial direction. At this time, an angle (stagger angle a) between the chord of the root surface contacting the outer surface of the induction pipe 1761b and the axis of the induction pipe 1761b; And an angle (stagger angle b) between the chord of the tip surface and the axis of the induction pipe 1761b; May be configured in a twisted fashion as a whole. Generally, b is formed larger than a. The twisted wing 1762b guides the oblique flow of the air that has passed through the guide tube 1761b and spirals downward. Preferably, the stagger angle continuously increases from the root to the tip, thereby inducing the flow of the exhaust gas more effectively.

Referring to FIG. 26, the twist wings 1762b are spaced apart from each other by a pitch of 30 degrees so that a sufficient space is formed between the wings and the wings when viewed from above. Thereby minimizing the pressure loss of the exhaust gas exiting the induction pipe 1761b and creating a spiral bypass flow. Also, all of the torsional vanes 1762b may be composed of a stationary stator. If the torsion vane 1762b is rotated like a compressor, the speed becomes excessively high and the contact time between the exhaust gas and the cleaning liquid is not sufficient.

The second negative pressure preventing means 1763b extends to the lower portion of the torsional vibration damper 1762b so as to allow the exhaust gas raised through the induction pipe 1761b to pass downwardly, The pipe 1761b can be covered. As a result, when the number of the cleaning liquid including the harmful substances in the exhaust gas is separated by the centrifugal force, it can be effectively separated downward. The second negative pressure preventing means 1763b is in the form of a hollow cylinder for the flow of the exhaust gas, and preferably has a cylindrical shape to effectively prevent differential pressure. Or the first negative pressure preventing means 1763a on the upper side of the second negative pressure preventing means 1763b. The spiral bypass flow of the exhaust gas with such a configuration can be confirmed in more detail in Fig.

28 to 29, the water collecting means 177 is configured to collect water separated from the exhaust gas at the bottom of the water separating means 176 and surround the induction pipe 1761b, A falling plate 1772 having the same configuration as that of the guide plate or developed parallel thereto, a drop tube 1773 extending downward from one side of the swash plate 1772, And a collection tube 1774 located at the lower end of the tube 1773.

The numerical separator 176 separates the water in the exhaust gas, and uses the centrifugal force to deflect the cleaning liquid containing harmful substances such as SOx and PM toward the inner wall surface 1711 side. The separated water droplets are required to be dropped down before they rise again under the influence of the flow of the exhaust gas. At the same time, it is necessary to prevent the exhaust gas from rising up into the passage through which the water drops fall.

Referring to FIGS. 22, 26 and 28, the partition plate 1771 includes a plurality of through holes 1771a in the vicinity thereof to drop the water drops separated from the water separating means 176. FIG. At this time, if the exhaust gas treatment device 17 according to the present invention is installed on the ship, the number of water can be flowed into the through hole 1771a without a separate inclination of the diaphragm 1771 due to rolling and pitching of the hull .

The swash plate 1772 is extended to maintain a predetermined inclination so that the water drops away from the through holes 1771a of the partition plate 1771 can flow outwardly, and preferably has a conical shape. One or more drop holes 1772a are provided on one side for dropping the water droplets that have flowed out to the outside, preferably four in total, one for every 90 degrees.

The drop pipe 1773 is extended downward from the drop hole 1772a formed at one side of the swash plate 1772 to drop the water drop to the bottom of the housing 171. [ But it is preferable that the drop hole 1772a has a cross section coinciding with the drop hole 1772a. In the case of FIG. 29, the drop hole 1772a has a triangular shape, so that the drop pipe 1773 also has a triangular column shape.

28 and 29, the collecting cylinder 1774 is a cylinder for collecting the water droplets descended by the dropping tube 1773, which is lower than the third injecting means 1753, . When the dropping pipe 1773 extends to the inside of the collecting cylinder 1774 and is completely immersed in the washing liquid sprayed from the third injecting means 1753, the exhaust gas rises on the dropping pipe 1773, It is possible to prevent it from being discharged without going through.

30 to 31, the numerical blocking means 178 may include a first blocking means 1781 and a second blocking means 1782, each located above the numerical separating means 176 Some of the water drops separated from the exhaust gas are prevented from falling on the inner wall surface 1711 of the housing 171 due to the influence of the flow of the exhaust gas without dropping, thereby preventing the water containing the harmful substances from being discharged into the atmosphere .

Since the cleaning liquid composed of the seawater or the fresh water injected from the injection means 173 and 175 has the function of neutralizing the sulfur oxides SOx and causing the PM to flocculate, the washing liquid water level present in the upper portion of the exhaust gas treatment device 17, It contains various harmful substances contained in gas. If the water droplets of the cleaning liquid are discharged together with the cleaned exhaust gas into the atmosphere, the exhaust gas treatment device 17 itself becomes meaningless, and thus, the atmospheric release of water must be prevented.

To this end, the horizontal blade 1762a of the numerical separating means 176 induces a spiral flow of the exhaust gas including the washing liquid numerical value, and deflects the water droplet, which is relatively heavy liquid by the centrifugal force, toward the inner wall surface 1711 side of the housing 171 . Or the inclined wing 1762b of the numerical separating means 176 bypasses the exhaust gas and induces the spiral flow so that the numerical value is shifted to the lower side of the inner wall surface 1711 by the centrifugal force. The water droplets of the cleaning liquid leaning toward the inner wall surface 1711 drop downward under the action of gravity, are collected by the water collecting means 177, fall down to the bottom of the housing 171, and are prevented from being discharged into the atmosphere.

However, in spite of the water collecting means 177, a part of the washing liquid separated by the water separating means 176 rises by the pressure difference without falling after being struck on the inner wall surface 1711 of the housing 171 And flows upward on the inner wall surface 1711 toward the upper side of the housing 171 under the influence of the exhaust gas flow. There is a need to block the discharge of harmful substances by blocking the water droplets ascending from the inner wall surface 1711 to the upper side of the housing 171 and discharging it to the atmosphere.

30, the inner wall surface 1711 includes an inclined surface 1711b extending from the vertical surface 1711a to the center in the vicinity of the gas outlet 1713 in addition to a vertical surface 1711a that extends vertically up and down. . &Lt; / RTI &gt; The slope 1711b can cut off the water droplet that rises along the vertical surface 1711a due to the influence of the exhaust gas to some extent. However, when the exhaust gas meets the inclined surface 1711b, the inclined surface 1711b is bent and flows along the inclined surface, so that there is a concern that the numerical value affected by the exhaust gas also rises along the inclined surface 1711b and is released to the atmosphere.

In order to prevent this, the first blocking means 1781 may include a blocking wall 1781a extending downward from one side of the inclined surface 1711b. The blocking wall 1781 is distributed in the form of a thick band along the boundary of the gas outflow portion 1713. When the gas outflow portion 1713 is circular, the blocking wall 1781a has a hollow cylindrical shape. As a result, the number of pieces of water that have risen along the inner wall surface 1711 flows down along the blocking wall 1781a via the inclined surface 1711b and there is no surface to be lifted further at the lower end of the blocking wall 1781a. Falls. Preferably, the blocking wall 1781 is expanded in a direction in which gravity acts to further improve the blocking effect. This numerical flow can be seen in more detail in FIG.

The second blocking means 1782 is located below the first blocking means 1781 and may include a downward sloping surface 1782b and another blocking wall 1782a.

The lower inclined surface 1782b is bent toward the center at a predetermined angle from one side of the vertical surface 1711a of the housing 171. The downward inclined surface 1782b has a function of guiding a water drop rising on the vertical surface 1711a to the blocking wall 1782a . At this time, it is preferable that the angle is formed larger than 90 degrees and the inclined surface is inclined downward to smoothly guide the number.

The blocking wall 1782a extends downward from the end of the lower inclined surface 1782b, and is preferably developed in a direction in which gravity acts. The water drops falling down on the downward inclined surface 1782b meet the blocking wall 1782a and descend vertically so that the surface of the blocking wall 1782a no longer rushes and flows downward due to gravity.

By the two blocking means 1781 and 1782, the water droplets of the cleaning liquid including the harmful substances such as SOx and PM can be prevented from being released to the atmosphere together with the clean gas.

Based on the above-described configuration, the exhaust gas generated by combustion in an engine or a boiler passes through the exhaust gas treatment device 17 according to the present invention, and harmful substances such as sulfur oxides (SOx) and particulate matter (PM) And the gas is converted into a clean gas will be described with reference to FIG. 2 and FIG.

Referring to FIGS. 2 and 3, the exhaust gas enters the inside of the housing 171 through the gas inlet 1712. The mixture of the washing liquid and the compressed air injected from the injecting means 173 soon causes the PM in the exhaust gas to cohere with the diffusing means 172 on the upper side of the gas inlet pipe 1712a. At this time, the exhaust gas by the diffusion means 172 forms a flow deflected toward the inner wall surface 1712, passes through the distributing means 174 and is evenly distributed to the center. Neutralization of sulfur oxides (SOx) and agglomeration of PM are caused by the cleaning liquid jetted from the multiple injection means 175 and the spiral flow formed by the water separating means 176 Uses a centrifugal force to separate the water droplets outward. The separated water droplets fall by the water collecting means 177, and the exhaust gas turns helically and continues to rise. However, some of the water drops that can not fall due to the exhaust gas flow and rise along the inner wall surface 1711 are blocked by the blocking means 178 so as to be prevented from being released to the atmosphere.

Through the above-described structure and process, the exhaust gas separates harmful substances such as sulfur oxides (SOx) and particulate matter (PM), and is released into the atmosphere as a clean gas.

The foregoing detailed description is illustrative of the present invention. In addition, the foregoing is intended to illustrate and explain the preferred embodiments of the present invention, and the present invention may be used in various other combinations, modifications, and environments. That is, it is possible to make changes or modifications within the scope of the concept of the invention disclosed in this specification, within the scope of the disclosure, and / or within the skill and knowledge of the art. The above-described embodiments illustrate the best mode for carrying out the technical idea of the present invention, and various modifications required for specific application fields and uses of the present invention are also possible. Accordingly, the detailed description of the invention is not intended to limit the invention to the disclosed embodiments. It is also to be understood that the appended claims are intended to cover such other embodiments.

17: Exhaust gas treatment device
171: Housing
1711: inner wall surface 1712: gas inlet 1713: gas outlet
1712a: gas inlet pipe 1712b: gas inlet port
1711a: vertical surface 1711b: inclined surface
1715:
172: diffusion means
1721: Body
1721a: interior space
1721b: Lower outlet
1721c:
1722: Stopper
173: injection means 1731: side injection means
174: dispensing means 1741: inclined portion 1742: guide portion
174a: Through hole 1742a: Inlet hole
175: Multiple injection means
176: Numerical separation means
1761: guide part 1762: wing 1763: sound pressure preventing means
1764: Plug
177: water collection means
1771: diaphragm 1772: inclined plate 1773: dropping tube
1774: Collection tank
1771a: Through hole 1772a: Drop hole
178:
1781a: blocking wall 1782a: blocking wall 1782b: downward inclined surface

Claims (13)

An exhaust gas treating apparatus for treating an exhaust gas produced by combustion,
The exhaust gas treatment apparatus includes a housing having a gas inflow portion and a gas outflow portion through which the exhaust gas flows, diffusion means for dispersing the introduced exhaust gas, distribution means for uniformly distributing the flow of the exhaust gas passing through the diffusion means, / RTI &gt;
Wherein the diffusion means includes a body that covers an upper side of the gas inlet, guides the exhaust gas having a flow that flows into the gas inlet through the gas inlet and is deflected to one side,
Wherein the distributing means includes a mesh structure including a plurality of small through holes and includes inclined portions in a shape of a lower light bulge which is increased toward the upper portion and a large inflow hole is formed on the lower side of the inclined portion, And the flow rate of the fluid is uniformly distributed to improve the treatment efficiency.
And an exhausting means. delete The method according to claim 1,
Wherein the body is formed into a hollow cylindrical shape and guides the introduced exhaust gas to bypass and bypass the exhaust gas.
And an exhausting means. The method of claim 3,
Characterized in that the diffusing means comprises a blocking cap on the body so as to prevent the descending washing liquid from flowing into the gas inlet tube
And an exhausting means. 5. The method of claim 4,
The blocking cap is formed in a conical shape so as to prevent the falling cleaning liquid from sticking to one side
And an exhausting means. 6. The method of claim 5,
Wherein the cleaning liquid flows out through a cleaning liquid outlet formed at one side of the bottom of the housing to perform a cleaning operation while maintaining a constant flow rate inside the housing
And an exhausting means. 7. The method according to any one of claims 1 to 6,
Wherein the exhaust gas treating apparatus is installed in a ship, and the exhaust gas includes a harmful substance composed of sulfur oxides
And an exhausting means. 8. The method of claim 7,
The exhaust gas treatment apparatus further comprises a cleaning liquid spraying means above the diffusion means,
Wherein the spraying means includes lateral spraying means for spraying the cleaning liquid to the side surface so that the contact area between the exhaust gas dispersed in the diffusion means and the cleaning liquid is widened to improve the working efficiency while reducing the height of the housing, doing
And an exhausting means. delete 9. The method of claim 8,
Wherein the exhaust gas processing apparatus includes a multi-injection means having a first injection means, a second injection means and a third injection means on the upper side of the distribution means,
Wherein the first injection means, the second injection means, and the third injection means are arranged alternately up and down to enlarge the contact area with the exhaust gas, and selectively operate according to the load of the engine or the boiler,
And an exhausting means. 11. The method of claim 10,
Wherein the exhaust gas processing device includes numerical separating means on the upper side of the multiple injection means,
Wherein the numerical separating means includes at least one induction portion in which exhaust gas enters and a wing formed in the upper portion of the induction portion at the center thereof to induce a spiral flow of the exhaust gas from the induction portion
And an exhausting means. 12. The method of claim 11,
Characterized in that the exhaust gas treatment apparatus includes a water collecting means for collecting the water droplets separated by the water separating means to prevent the release of harmful substances to the atmosphere
And an exhausting means. 13. The method of claim 12,
Wherein said exhaust gas processing device includes numerical-value cut-off means for blocking an upwardly ascending numerical value on an inclined surface of said housing on the upper side of said numerical separating means,
Wherein the numerical aperture blocking means includes a blocking wall extending downward from one side of the inclined surface to effectively block the water droplet that rises on the inner wall.
And an exhausting means.

KR1020170107086A 2017-08-24 2017-08-24 Exhaust gas treatment equipment including diverting means KR101857212B1 (en)

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KR20210026038A (en) * 2019-08-29 2021-03-10 주식회사 파나시아 Exhaust Gas Treatment Equipment Including Multi-Diverting Means
KR20210107422A (en) * 2020-02-24 2021-09-01 스마클(주) Landfill stabilization apparatus having a deodorizing function

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Publication number Priority date Publication date Assignee Title
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KR20210107422A (en) * 2020-02-24 2021-09-01 스마클(주) Landfill stabilization apparatus having a deodorizing function
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