WO2019050188A1 - Épurateur par voie humide de récipient et système d'épurateur par voie humide de récipient doté de celui-ci - Google Patents

Épurateur par voie humide de récipient et système d'épurateur par voie humide de récipient doté de celui-ci Download PDF

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Publication number
WO2019050188A1
WO2019050188A1 PCT/KR2018/009435 KR2018009435W WO2019050188A1 WO 2019050188 A1 WO2019050188 A1 WO 2019050188A1 KR 2018009435 W KR2018009435 W KR 2018009435W WO 2019050188 A1 WO2019050188 A1 WO 2019050188A1
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WO
WIPO (PCT)
Prior art keywords
flue gas
housing
wet scrubber
washing water
suction port
Prior art date
Application number
PCT/KR2018/009435
Other languages
English (en)
Korean (ko)
Inventor
김근배
Original Assignee
하이에어코리아 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 하이에어코리아 주식회사 filed Critical 하이에어코리아 주식회사
Publication of WO2019050188A1 publication Critical patent/WO2019050188A1/fr

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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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/085—Sulfur or sulfur oxides
    • 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
    • F01N3/005—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for draining or otherwise eliminating condensates or moisture accumulating in the apparatus
    • 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
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/04—Sulfur or sulfur oxides
    • 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
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications
    • 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
    • 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
    • F01N2610/146—Control thereof, e.g. control of injectors or injection valves

Definitions

  • the present invention relates to a wet scrubber for marine vessels and a wet scrubber system for marine vessels comprising the same. More particularly, the present invention relates to a wet scrubber for a marine vessel, which is capable of increasing the solubility of a high temperature flue gas passing through the inside of the housing, To a marine wet scrubber system capable of effectively removing harmful substances such as sulfur compounds.
  • the toxic substances contained in the flue gas discharged from ships are not only harmful to the human body but also cause environmental pollution if they are discharged into the air without filtration treatment. Especially, the sulfur compounds contained in the flue gas must be removed do.
  • IMO International Maritime Organization
  • MARPOL Marine Pollution Treaty
  • ECAs emission control areas
  • flue gas treating apparatus for desulfurizing the ship flue gas and discharging it to the atmosphere are installed in the flue gas line of the ship.
  • a wet scrubber system for marine vessels is being used to treat such flue gas.
  • the wet scrubber system for marine vessels is a device for spraying cleaning water into a flue gas containing a pollutant and then dissolving or collecting contaminants of the flue gas by contacting the pollutants such as droplets, .
  • the wet scrubber system for marine includes an absorber for absorbing contaminants of flue gas by spraying washing water, a washing water treatment system for treating washing water discharged by absorbing contaminants, And a control system for monitoring and controlling the system.
  • the absorption tower is a core device of the wet scrubber system.
  • a packing such as a pall ring is installed inside the absorption tower A method has been used in which contaminants of the flue gas are dissolved in the washing water injected into the filler, or the washing water is directly sprayed into the flue gas to remove contaminants of the flue gas.
  • the present invention has been conceived in order to increase the absorption efficiency of a sulfur compound.
  • the present invention aims at increasing the solubility of the flue gas with respect to the washing water by cooling the flue gas passing through the inside of the housing constituting the wet scrubber system, Thereby increasing the absorption efficiency of the compound and effectively removing harmful substances such as sulfur compounds.
  • a housing having a suction port through which a flue gas is sucked and a discharge port through which the pollutant contained in the flue gas is absorbed and then discharged;
  • a washing water inflow preventing part installed on the upper side of the suction port to prevent the washing water from flowing into the suction port;
  • a filler portion provided on the clean water inflow preventing portion and having a filler for absorbing sulfur compounds contained in the flue gas;
  • At least one nozzle assembly installed at an upper portion of the filler portion and spraying clean water to the flue gas;
  • a drain hole provided at one side of the lower end of the housing for draining the washing water collected on the bottom surface of the housing.
  • the housing means a cylindrical portion surrounding all mechanical devices, and a scrubber can be understood as a device for absorbing or collecting solid or liquid particles floating in a gas using liquid.
  • the washing water inflow preventing portion may be formed in a conical shape inclined downward toward the inlet port to prevent the washing water from flowing into the inlet port.
  • the horizontal bent portion may be formed at an edge of the lower end of the cleansing water inflow preventing portion, and a plurality of holes may be formed in the horizontal bent portion. The cleansing water flowing into the cleansing water inflow preventing portion may fall through the holes.
  • the nozzle assembly includes a washing water supply line for supplying washing water to the inside of the housing through one side of the housing; And a spray nozzle installed in the wash water supply line so as to be adjustable in angle and spraying wash water to the flue gas.
  • the nozzle assembly may have a multi-stage structure in which at least two nozzle assemblies are installed at predetermined intervals in a direction from the suction port toward the discharge port.
  • the rotating force generating unit may include a rotating force generating unit installed at a lower portion of the washing water inflow preventing unit to generate a rotating force in the flue gas taken in. And may be a plurality of vanes provided along the circumference of the cleansing water inflow preventing portion.
  • the vane may be formed in a curved surface structure that is inclined or bent at a predetermined angle.
  • the marine wet scrubber is provided closely to the inner wall of the housing corresponding to the upper portion of the washing water inflow preventing portion so as to guide the movement of the flue gas, and is connected to the bottom of the washing water inflow preventing portion, Shaped flue gas flow guide plate for converting the flow path of the flue gas into the inward direction.
  • the flue gas flow guide plate may have a structure including a plurality of passing slits formed to discharge the washing water downward along the outer periphery of the ring closely attached to the inner wall of the housing.
  • the flue gas flow guide plate is a kind of baffle, which means a flow path control plate installed on the inner wall of the housing to guide the flue gas to flow upwardly and uniformly distributed.
  • the flue gas flow guide plate may include a plurality of through holes formed to penetrate the flue gas upward, and the through holes may be formed in a long slit-type.
  • the filler portion may include a pedestal having a passageway through which the flue gas can flow and in which the filler is received.
  • the filler When the wet scrubber for a ship is operated in a dry running state, the filler may be made of a material having high heat resistance and corrosion resistance so as not to be damaged by a high temperature flue gas containing contaminants.
  • a gas-liquid separator may be installed in the interior of the housing between the outlet and the nozzle assembly.
  • the marine wet scrubber may further include a control device for controlling the suction, discharge or flushing function of the flue gas or the cleaning water jetting function of the nozzle assembly.
  • the present invention can include a marine wet scrubber system including the marine wet scrubber.
  • the wet scrubber for a ship according to the present invention is characterized in that the number, time and area of contact between the flushing water and the flushing water are set so that the sulfuric compound in the flammable gas can be effectively removed by lowering the temperature of the flammable gas inhaled, And the like.
  • the flue gas sucked up from the inlet is primarily cooled by using the cleansing water discharged through a hole or a hole formed in a horizontal bent portion of the cleansing water inflow preventing portion. Thereafter, the flue gas can be effectively cooled by guiding the path of the flue gas using the rotational force generating unit and the flue gas flow guide plate to increase the contact time and area of the flushing water with the flue gas, It is possible to increase the absorption efficiency of the sulfur compounds of the flue gas by spraying.
  • FIG. 1 is a schematic view of a wet scrubber for a ship according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view and a bottom view of the washing water inflow preventing portion according to an embodiment of the present invention.
  • FIG 3 is a cross-sectional view and a bottom view of a rotational force generating portion provided at a lower end of the rinse water inflow preventing portion according to an embodiment of the present invention.
  • FIG. 4 is a plan view of a flue gas flow guide plate according to an embodiment of the present invention
  • FIG. 2 is a cross-sectional view and a bottom view of a washing water inflow preventing unit according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view and a bottom view of the wet scrubber according to an embodiment of the present invention.
  • FIG. 4 is a plan view of a flue gas flow guide plate according to an embodiment of the present invention.
  • FIG. 4 is a plan view of a flue gas flow guide plate according to an embodiment of the present invention.
  • a wet scrubber 10 includes a housing 100 defining an inner space, a cleaning water inflow preventing unit (not shown) installed inside the housing 100, A nozzle assembly 120, a rotational force generating part 130, a flue gas flow guide plate 140, a filler part 150, a gas-liquid separating device 160, and a control device (not shown) .
  • the housing 100 may be formed in a chamber structure having an inlet 101 through which the flue gas is sucked and an outlet 102 through which the pollutant in the flue gas is absorbed and discharged.
  • the inlet (101) may be provided at a lower portion of the housing (100).
  • the inlet port 101 communicates with the inside of the housing 100 to connect the inside of the housing 100 and serves as a passage for moving the flue gas into the housing 100.
  • the suction port 101 is formed to protrude from the inside of the housing 100 toward the cleansing water inflow preventing portion 110 so as to be spaced apart from one end of the suction port 101 and the bottom surface of the housing 100 it is possible to prevent the washing water 5 collected in the housing 100 from flowing into the suction port 101.
  • the outlet (102) may be provided on the upper portion of the housing (100).
  • the discharge port 102 is sucked through the suction port 101 and serves as a passage for discharging the flue gas absorbed and treated by the washing water inside the housing 100 to the outside.
  • the inlet (101) and the outlet (102) may be provided with valves for controlling the opening and closing of the passages.
  • the cleansing water inflow preventing portion 110 may be installed at the upper portion of the suction port 101.
  • the cleansing water inflow preventing portion 110 may be formed to be inclined downward toward the suction port 101.
  • the cleaning water inflow preventing portion 110 is formed to be large enough to cover the suction port 101 to prevent the washing water 5 sprayed from the nozzle assembly 120 from flowing into the suction port 101 do.
  • the washing water inflow preventing portion 110 may include a sloped surface 111 formed to be inclined downward, and a horizontal bent portion 112 connected to the bottom edge of the sloped surface 111 to be bent.
  • the horizontal bent portion 112 is a portion formed by horizontally extending the lower edge of the inclined surface 111 and a plurality of holes 112a may be formed in the horizontal bent portion 112. [ The holes 112a are configured to allow the wash water flowing into the cleansing water inflow preventing portion 110 to pass and drop, so that the present invention is not limited thereto.
  • the cleansing water 5 flowing along the inclined surface 111 of the cleansing water inflow preventing portion 110 is gathered at the horizontal bent portion 112 and the collected cleansing water 5 is collected in the holes 112a To the bottom surface of the housing 100.
  • the flowing wash water 5 is discharged to the outside through the drain port 103 provided at one side of the lower end of the housing 100.
  • the flue gas sucked through the suction port 101 and moving toward the discharge port 102 may be contacted with the washing water 5 flowing through the hole 112a to perform the primary cooling.
  • the nozzle assembly 120 may be installed on the upper portion of the washing water inflow preventing portion 110 and may include a washing water supply line 121 and an injection nozzle 122.
  • the cleaning water supply line 121 may have a structure in which one side of the cleaning water supply line 121 is installed inside the housing 100 and the other side of the cleaning water supply line 121 extends to the outside of the housing 100.
  • the other extended side of the washing water supply line 121 is connected to the washing water supplying part 123 so that the washing water 5 is supplied into the inside of the housing 100.
  • a plurality of the injection nozzles 122 may be installed along one side of the cleansing water supply line 121 and the injection nozzles 122 may be rotatably installed on the cleansing water supply line 121.
  • the injection nozzle 122 injects the washing water 5 supplied from the washing water supply line 121 into the flue gas.
  • the washing water supply line 121 in which the plurality of spray nozzles 122 are formed may be provided with a plurality of stages 120A and 120B spaced apart from each other in the direction from the suction port 101 toward the discharge port 102 have.
  • the pollutant (sulfur compound) contained in the flue gas can be more effectively absorbed and removed.
  • the rotational force generating unit may be installed at a lower portion of the horizontal bent portion 112 of the cleansing water inflow preventing portion 110, may include a plurality of vanes 130, The vane 130 may be formed in a curved surface structure.
  • the rotating force generating unit 130 generates a swirl in the flue gas flowing into the housing 100 so that the flue gas can be rotated in the lower portion of the housing 100. Due to the rotating movement, Can be mixed well with the flue gas, and the sulfur compounds can be effectively absorbed by the washing water.
  • the flue gas can be uniformly distributed in the housing 100 while rotating, and cooling of the flue gas is promoted as the number of times, the time, and the area in which the flue gas contacts the washing water is increased, The absorption efficiency of the sulfur compound is increased.
  • the flue gas flow guide plate 140 may be installed on the upper portion of the washing water inflow preventing portion 110 and may include an opening 141, a through hole 142, 143).
  • the flue gas flow guide plate 140 has a ring shape having an opening 141 formed on the inside thereof, and may have a plate structure having a predetermined thickness.
  • the opening 141 passes flue gas moving toward the discharge port 102 and the washing water 5 sprayed toward the opening 141 can be mixed with the flue gas.
  • the outer periphery of the flue gas flow guide plate 140 is in close contact with the inner wall of the housing 100.
  • a plurality of the passing slits 143 may be formed along the outer circumferential portion.
  • the passing slit 143 serves to flow the washing water 5 sprayed from the spray nozzle 122 installed on the upper part of the housing 100 to the bottom surface of the housing 100 through the inner wall of the housing 100 .
  • the through hole 142 may be formed at a position between the opening 141 and the passing slit 143 while being adjacent to the inner circumferential portion of the flue gas flow guide plate 140.
  • the through hole 142 serves as a passage for the flue gas moving toward the discharge port 102.
  • the opening 141 and the through hole 142 are the same in that they serve as a passage through which the flue gas moves, but the opening 141 has a larger diameter than the through hole 142, ) Of the flue gas.
  • the flue gas is distributed adjacent to the inner wall of the housing 100 while passing through the cleansing water inflow preventing portion 110.
  • the flue gas flow guide plate 140 is disposed on the inner side wall of the housing 100, So that the flue gas can flow toward the discharge port 102 while being uniformly distributed in the interior of the housing 100. In this case,
  • the filler portion 150 may be installed at a lower portion of the nozzle assembly 120.
  • the filler portion 150 may have a passage through which the flue gas can flow, and may be configured to include a pedestal in which the filler material is received.
  • the sulfur compound contained in the flue gas can be absorbed and treated by the washing water flowing around the filler.
  • the filler member 150 may be installed at a lower portion of the nozzle assembly 120 provided with the plurality of stages 120A and 120B.
  • the flue gas not in contact with the washing water is a gas at a high temperature and contains a corrosive compound
  • the filler material may be made of a material having high heat resistance and corrosion resistance so that the flue gas can pass smoothly without damaging the filler material.
  • the gas-liquid separator 160 may be installed between the upper portion of the nozzle assembly 120 and the discharge port 102.
  • the gas-liquid separator 160 is a device for separating gas and liquid by inducing rotation in a linear gas flow and using centrifugal force.
  • the flue gas passes through the gas-liquid separator 160 and the moisture contained therein is removed, and the flue gas from which the moisture is removed is discharged to the outside of the housing 100 through the discharge port 102.
  • the control device (not shown) controls the opening and closing of the valve installed at the inlet or the outlet to control the suction and discharge of the flue gas, and controls the supply amount of the washing water supplied to the nozzle assembly and the operation of the spray nozzle have.
  • the present invention it is possible to increase the number of times the flushing gas contacts the flue gas, the time and the area so that the sulfur compound in the flue gas can be effectively removed by lowering the temperature of the flue gas sucked and increasing the solubility in the washing water
  • the flue gas sucked up from the suction port is primarily cooled by using the cleansing water discharged through a hole or a hole formed in a horizontal bent portion of the cleansing water inflow preventing portion, It is possible to effectively cool the flue gas by guiding the path of the flue gas by using the plate and by increasing the contact time and area of the flushing water with the flue gas and the absorption efficiency of the sulfur compound of the flue gas by the spraying of the washing water by the nozzle assembly It can be more effectively used in the field of wet scrubber for ships.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

La présente invention concerne un épurateur par voie humide de récipient et un système d'épurateur par voie humide de récipient doté de celui-ci. L'épurateur par voie humide de récipient comprend: un boîtier dans lequel un gaz de combustion est aspiré à travers un orifice d'aspiration disposé sur le côté inférieur de celui-ci, dans lequel des polluants contenus dans le gaz de combustion sont absorbés à partir du gaz de combustion, et à partir desquels le gaz de combustion ayant été soumis à l'absorption de polluants est évacué par l'intermédiaire d'un orifice de décharge disposé sur le côté supérieur de celui-ci; une unité de prévention d'entrée d'eau de lavage installée au-dessus de l'orifice d'aspiration de façon à empêcher l'eau de lavage de s'écouler dans l'orifice d'aspiration; une unité de remplissage installée au-dessus de l'unité de prévention d'entrée d'eau de lavage et comprenant une charge pour absorber des composés soufrés contenus dans le gaz de combustion; au moins un ensemble buse installé au-dessus de l'unité de remplissage de façon à pulvériser le gaz de combustion avec de l'eau de lavage; et un orifice de drainage installé sur un côté de l'extrémité inférieure du boîtier de façon à drainer l'eau de lavage collectée au niveau de la surface inférieure du boîtier.
PCT/KR2018/009435 2017-09-05 2018-08-17 Épurateur par voie humide de récipient et système d'épurateur par voie humide de récipient doté de celui-ci WO2019050188A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0113366 2017-09-05
KR1020170113366A KR101804418B1 (ko) 2017-09-05 2017-09-05 선박용 습식 스크러버 및 이를 포함하는 선박용 습식 스크러버 시스템

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WO2019050188A1 true WO2019050188A1 (fr) 2019-03-14

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WO (1) WO2019050188A1 (fr)

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CN111776355A (zh) * 2020-07-10 2020-10-16 浙江优可思护理用品科技有限公司 一种湿巾袋封装装置

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KR102098232B1 (ko) * 2018-04-23 2020-04-07 현대머티리얼 주식회사 배기가스 처리용 스크러버 및 이를 갖는 통합형 배기처리장치
KR101895192B1 (ko) * 2018-05-23 2018-09-04 서민수 벤튜리 일체형 스크러버 장치
KR101941199B1 (ko) * 2018-06-26 2019-01-22 하이에어코리아 주식회사 선박용 습식 스크러버 및 이를 포함한 배연가스 냉각 시스템
KR101940605B1 (ko) 2018-07-26 2019-01-21 하이에어코리아 주식회사 선박용 습식 스크러버에 배연가스를 공급하기 위한 수직형 배연가스 매니폴드 장치
KR102072304B1 (ko) * 2018-08-22 2020-01-31 한국해양대학교 산학협력단 선박 엔진 황산화물 정화용 i-스크러버 장치
KR101940604B1 (ko) 2018-09-03 2019-01-21 하이에어코리아 주식회사 선박용 습식 스크러버 및 이를 포함한 흡수탑 내부 복합방식 세정수 분사 시스템
KR102159383B1 (ko) * 2019-04-17 2020-09-23 박동일 미세먼지 집진장치
KR102275428B1 (ko) * 2019-12-10 2021-07-13 주식회사 애니텍 에어버블 세정장치를 구비한 스크러버
KR102436707B1 (ko) * 2021-02-25 2022-08-29 주식회사 전진엠에스 스크러버
KR102306217B1 (ko) 2021-06-09 2021-09-29 하이에어코리아 주식회사 배기가스 정화시스템과 정화방법 및 이를 포함하는 선박
KR102313858B1 (ko) 2021-08-25 2021-10-18 하이에어코리아 주식회사 선박용 배기가스 정화장치와 정화방법 및 이를 구비하는 선박

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