KR101857212B1 - Exhaust gas treatment equipment including diverting means - Google Patents
Exhaust gas treatment equipment including diverting means Download PDFInfo
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- 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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- exhaust gas
- cleaning liquid
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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
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- 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
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- 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
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- 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
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- 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
Description
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
2 to 3, the
The
The gas inlet 1712 may include a
The cleaning
The
Next, referring to FIGS. 2 to 31, the exhaust gas flowing into the
2 and 3, the exhaust
4 to 7, the
4 and 5, the
The exhaust gas generated from the engine or the boiler is cleaned by the cleaning liquid sprayed from the inside of the
In order to solve this problem, in the present invention, the exhaust pipe exhaust gas is distributed through the
7, the exhaust gas flowing into the
The
An exhaust
The cleaning liquid flowing down from the
8 to 11, the
Referring to FIG. 8, the lateral jetting means 1731 may include a
The
The jetting
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
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
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
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
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
12 and 13, the
The exhaust
Referring to FIGS. 12 and 14, the
Mentioned
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
The jetting
The jetting
A plurality of jetting
Referring to FIG. 19, the second injection means 1752 likewise includes the
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
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
The multiple injection means 175 of the exhaust
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
Referring to FIG. 24, the second type includes a
Referring to FIGS. 20, 21, 24, and 25, the guiding
The
The
Referring to FIG. 21, one or more
The cleaning liquid jetted from the
In addition, all the
The stopper 1764 may include an
When the exhaust gas flows into the spiral by the vane 1762, a centrifugal force is applied and the fluid is concentrated to the
Accordingly, the first negative
24 and 26, at least one
Referring to FIG. 26, the
The second negative
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
The
Referring to FIGS. 22, 26 and 28, the
The
The
28 and 29, the
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
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
To this end, the
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
30, the
In order to prevent this, the first blocking means 1781 may include a blocking
The second blocking means 1782 is located below the first blocking means 1781 and may include a downward sloping
The lower
The blocking
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
Referring to FIGS. 2 and 3, the exhaust gas enters the inside of the
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:
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
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
Claims (13)
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 >
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Priority Applications (1)
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KR1020170107086A KR101857212B1 (en) | 2017-08-24 | 2017-08-24 | Exhaust gas treatment equipment including diverting means |
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KR1020170107086A KR101857212B1 (en) | 2017-08-24 | 2017-08-24 | Exhaust gas treatment equipment including diverting means |
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KR101857212B1 true KR101857212B1 (en) | 2018-06-26 |
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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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KR20040066552A (en) * | 2003-01-20 | 2004-07-27 | 노영만 | Cinder catcher for boiler |
JP2008525773A (en) * | 2004-12-28 | 2008-07-17 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Sensor element used for gas sensor |
KR101431077B1 (en) * | 2013-04-22 | 2014-08-21 | (주) 세아그린텍 | Exhaust gas cleaning system in marine diesel engines |
KR101482964B1 (en) * | 2014-07-18 | 2015-01-21 | 주식회사 지이테크 | Cleansing or recovery device for the treatment of highly concentrated water-soluble odor and toxic substances Included in the exhaust gas |
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KR20040066552A (en) * | 2003-01-20 | 2004-07-27 | 노영만 | Cinder catcher for boiler |
JP2008525773A (en) * | 2004-12-28 | 2008-07-17 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Sensor element used for gas sensor |
KR101431077B1 (en) * | 2013-04-22 | 2014-08-21 | (주) 세아그린텍 | Exhaust gas cleaning system in marine diesel engines |
KR101482964B1 (en) * | 2014-07-18 | 2015-01-21 | 주식회사 지이테크 | Cleansing or recovery device for the treatment of highly concentrated water-soluble odor and toxic substances Included in the exhaust gas |
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KR20210026038A (en) * | 2019-08-29 | 2021-03-10 | 주식회사 파나시아 | Exhaust Gas Treatment Equipment Including Multi-Diverting Means |
KR102285302B1 (en) | 2019-08-29 | 2021-08-04 | 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 |
KR102401883B1 (en) * | 2020-02-24 | 2022-05-25 | 스마클(주) | Landfill stabilization apparatus having a deodorizing function |
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