WO2014088149A1 - Apparatus for purifying exhaust gas from ship - Google Patents

Apparatus for purifying exhaust gas from ship Download PDF

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Publication number
WO2014088149A1
WO2014088149A1 PCT/KR2012/011805 KR2012011805W WO2014088149A1 WO 2014088149 A1 WO2014088149 A1 WO 2014088149A1 KR 2012011805 W KR2012011805 W KR 2012011805W WO 2014088149 A1 WO2014088149 A1 WO 2014088149A1
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WO
WIPO (PCT)
Prior art keywords
seawater
exhaust gas
housing
supply pipe
inlet
Prior art date
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PCT/KR2012/011805
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French (fr)
Korean (ko)
Inventor
김화섭
김남일
이건민
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(주)세움
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Publication of WO2014088149A1 publication Critical patent/WO2014088149A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/32—Arrangements of propulsion power-unit exhaust uptakes; Funnels peculiar to vessels
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to a ship exhaust gas purifying apparatus, and more particularly, the configuration for purifying ship exhaust gas can be configured simply and cost-effectively, and the circulation treatment without discharging the seawater that has undergone purification work (
  • the present invention relates to a marine exhaust gas purification apparatus capable of minimizing seawater contamination by discharged water.
  • the conventional water scrubber system for the purification of the exhaust gas of a ship is complicated due to the nature of fresh water such as holding tank, make-up tank, chemical addition, etc. This has a high disadvantage.
  • the conventional system uses a method of cleaning and discharging the washing water (sea water) to purify the exhaust gas of the ship, thus causing pollution of the sea water due to the discharge water.
  • Another object of the present invention is to provide a marine exhaust gas purification apparatus capable of minimizing seawater contamination by discharged water by circulating (recycling) the wastewater without purifying the purified water.
  • An object of the present invention is to provide an apparatus for purifying exhaust gas of a ship, comprising: a seawater inlet for introducing seawater; A wet scrubber connected to the seawater inlet and a pipe and configured to discharge the seawater introduced by the seawater inlet and the exhaust gas of the vessel into the outside, and then discharge the exhaust gas purified by the seawater to the outside; And a seawater circulation supply unit for purifying exhaust gas from the wet scrubber and re-supplying the discharged seawater to the wet scrubber, wherein the wet scrubber includes an exhaust gas inlet through which the exhaust gas before purification is introduced, and is purified.
  • a housing provided with an exhaust gas outlet for discharging the exhaust gas, a seawater inlet connected to the seawater inlet, and a seawater outlet for discharging seawater purifying exhaust gas;
  • a main sea water supply pipe disposed inside the housing to supply sea water to the inside of the housing;
  • a plurality of auxiliary seawater supply pipes disposed radially in the end region of the main seawater supply pipe and spraying seawater in a radial form.
  • the exhaust gas inlet pipe communicating with the exhaust gas inlet is inclined more than a predetermined angle and connected in a normal direction so that the exhaust gas moves upward while turning along the inner wall of the housing, and the main sea water supply pipe and the auxiliary sea water supply pipe
  • Each nozzle may be provided with a nozzle for spraying the seawater in a fine droplet state.
  • the plurality of auxiliary seawater supply pipes communicate with the main seawater supply pipe to form a seawater flow path, and may be provided in a radial shape with respect to the cross section of the housing.
  • a fine nozzle may be provided near the exhaust gas discharge port of the housing to secondarily purify the exhaust gas primarily purified by the main sea water supply pipe and the auxiliary sea water supply pipe.
  • a barrier wall may be provided near the exhaust gas outlet of the housing so that the seawater fine droplets containing foreign substances contained in the exhaust gas fall and are discharged to the seawater outlet.
  • a seawater discharge guide may be provided in the lower region of the housing to move seawater to the seawater circulation supply part separately from the seawater discharge port.
  • the housing may include a first housing in which the exhaust gas outlet is provided; A second housing provided with the exhaust gas inlet; And a third housing in which the seawater discharge port is provided is sequentially connected, and the first to third housings may be coupled to each other.
  • the ship exhaust gas purification apparatus which concerns on embodiment of this invention has the following effects.
  • dust collection efficiency of PM, SOx, etc. included in the exhaust gas may be further increased through seawater injection through the main seawater supply pipe, the auxiliary seawater supply pipe, and the fine nozzle.
  • FIG. 1 is a block diagram showing a ship exhaust gas purification apparatus according to an embodiment of the present invention.
  • FIG. 2 is a cutaway perspective view showing a wet scrubber of a ship exhaust gas purifying apparatus according to an embodiment of the present invention.
  • FIG 3 is a cross-sectional view showing the main sea water supply pipe and the auxiliary sea water supply pipe of the wet scrubber of the ship exhaust gas purifying apparatus according to an embodiment of the present invention.
  • FIG. 4 is a plan view showing the arrangement of the auxiliary seawater supply pipe of the wet scrubber of the ship exhaust gas purifying apparatus according to an embodiment of the present invention.
  • FIG. 1 is a configuration diagram showing a marine exhaust gas purification apparatus according to an embodiment of the present invention
  • Figure 2 is a cutaway perspective view showing a wet scrubber of a marine exhaust gas purification apparatus according to an embodiment of the present invention
  • Figure 3 is a present invention 4 is a cross-sectional view illustrating a main seawater supply pipe and an auxiliary seawater supply pipe of a wet scrubber of a ship exhaust gas purification device according to an embodiment of the present invention
  • FIG. 4 is an arrangement of the auxiliary seawater supply pipe of the wet scrubber of the ship exhaust gas purification device according to an embodiment of the present invention. It is a top view which shows a state.
  • the ship exhaust gas purifying apparatus (hereinafter, referred to as purifier) according to an exemplary embodiment of the present invention is a circulating treatment apparatus for reducing pollutants (PM, SOx, etc.) of engine exhaust gas of a small and medium-sized ship, in particular, exhaust gas It is designed to comply with IMO international regulations by preventing sea pollution from purified effluents.
  • the exhaust gas is purified using the principle that the sodium component and the sulfur (S) component in the seawater are combined and reacted with each other.
  • a purifier is a device for purifying exhaust gas of a ship, and includes a seawater inflow unit 100, a seawater inflow unit 100, and piping for introducing seawater. Is connected through, the seawater introduced by the seawater inlet 100 and the exhaust gas of the vessel is introduced into the wet scrubber 200 to discharge the exhaust gas purified by the seawater to the outside, and the wet scrubber 200 After purifying the exhaust gas in the concentration control the discharged seawater is supplied back to the wet scrubber 200 includes a seawater circulation supply unit 300.
  • the seawater inlet 100 is composed of a seawater inlet pipe and a seawater inlet pipe provided on the seawater inlet pipe provided to enable the inflow of seawater (ship ballast water) during operation of the ship.
  • the seawater described below is seawater treated with ozone addition or electrolysis according to the International Maritime Organization (IMO) Ballast Water Management Convention 2004 (BWM Convention).
  • IMO International Maritime Organization
  • BWM Convention Ballast Water Management Convention 2004
  • the bonding with SOx is more activated than existing seawater, which has the advantage of improving the reduction rate of SOx.
  • the seawater inlet 100 includes a seawater storage tank 110 for storing the seawater sucked by the pump described above.
  • the seawater storage tank 110 is connected to the seawater inlet of the wet scrubber 200 through the seawater supply pipe.
  • a separate flow control valve (not shown) is provided in the sea water supply pipe, and the wet scrubber 200 is provided with a level gauge for checking the level of seawater contained therein, and a flow control valve based on the measured value of the level gauge.
  • the degree of opening and closing is adjustable.
  • the seawater supply pipe is connected to a separate purification water storage tank 400 through the pipe.
  • the purified water storage tank 400 stores fresh water, not sea water, and supplies fresh water into the wet scrubber 200 when the purifying device stops operating according to the present embodiment to prevent corrosion of the wet scrubber 200 by sea water. Can increase the lifespan.
  • the wet scrubber 200 is connected to the seawater inlet 100 through a pipe and the exhaust gas purified by seawater after the seawater introduced by the seawater inlet 100 and the exhaust gas of the vessel enters the inside. Will be discharged to the outside. Specific internal configuration of the wet scrubber 200 will be described later.
  • the seawater circulation supply unit 300 is provided to re-supply the wet scrubber 200 by adjusting the concentration of the discharged seawater after purifying the exhaust gas from the wet scrubber 200.
  • the sea water circulation supply unit 300 is connected to the seawater outlet 204 of the wet scrubber 200 through a pipe and a purifier 310 and a purifier 310 connected through a pipe and purified through a purifier 310. It includes a cooler (320, cooler) for reducing the temperature of the sea water. In addition, the seawater circulation supply unit 300 is provided between the purifier 310 and the cooler 320 to adjust the concentration (PH concentration) of the seawater supplied from the purifier 310, specifically, the exhaust from the wet scrubber 200 And a concentration control mixer 330 for compensating again for the rate at which sodium concentration is reduced through gas purification to have the same concentration as the seawater at the time of initial inflow.
  • PH concentration concentration
  • the purifier 310 purifies the exhaust gas from the wet scrubber 200 using centrifugal force to separate foreign substances of seawater containing foreign substances of the exhaust gas.
  • the specific gravity is different from the rotating cylinder. Insert the mixed liquid and rotate it at high speed to separate the seawater and foreign substances according to the specific gravity difference.
  • the seawater from which the foreign matter is separated by the purifier 310 is reused again for the purpose of purifying exhaust gas, and the sludge, such as filtered PM and SOx, is stored in a separate sludge tank 340 and then disposed of.
  • the concentration control mixer 330 adjusts the pH concentration of the seawater separated through the purifier 310.
  • the pH of the seawater changes in the wet scrubber 200 in the process of purifying the PM, SOx components contained in the exhaust gas than the initial, the concentration control mixer 330 when the initial input of the pH concentration of the seawater again It is adjusted to the same or similar degree to the seawater of.
  • the cooler 320 reduces the temperature of the increased seawater during the concentration control process in the concentration control mixer 330 to make it similar to the seawater temperature at the time of initial input.
  • the seawater passing through the cooler 320 is supplied back to the wet scrubber 200 to purify the exhaust gas again.
  • the above-described seawater may be supplied to the main seawater supply pipe 220 and the fine nozzle 250 of the wet scrubber 200, respectively.
  • the pump is installed.
  • the efficiency of the purification operation can be increased by reusing the seawater after the purification of the exhaust gas is finished, and the pollution of seawater can be prevented by separately disposing PM, SOx, and the like filtered by the purifier 310.
  • the purifier 310 There is an environmentally applicable advantage.
  • by circulating (recycling) the seawater it is possible to minimize seawater contamination by the discharged water.
  • the wet scrubber 200 is provided to discharge the cleaned exhaust gas by separating the PM and SOx components substantially included in the exhaust gas of the ship, and the seawater inlet 100 and the pipe It is connected through the seawater inlet 100, the seawater and the exhaust gas of the vessel is introduced into the interior to discharge the exhaust gas purified by seawater to the outside.
  • the wet scrubber 200 has an exhaust gas inlet 201 through which the exhaust gas before purification is introduced, an exhaust gas outlet 202 through which the purified exhaust gas is discharged, and a seawater inlet 203 connected with the seawater inlet 100. And a housing 210 provided with a seawater discharge port 204 for discharging seawater purifying exhaust gas, a main seawater supply pipe 220 disposed inside the housing 210 to supply seawater to the inside of the housing 210, and A plurality of auxiliary seawater supply pipe 230 provided radially in the end region of the main seawater supply pipe 220 for spraying seawater in a radial form.
  • the exhaust gas inlet pipe 240 in communication with the exhaust gas inlet 201 is inclined more than a predetermined angle with respect to the housing 210 is connected in the normal direction so that the exhaust gas is pivoting along the inner wall of the housing 210.
  • a purification operation is performed and then discharged to the exhaust gas outlet 202, thereby exhaust gas in the housing 210.
  • the seawater introduced into the housing 210 to collect foreign matter components contained in the exhaust gas is discharged downward through the seawater outlet 204.
  • the seawater outlet 204 and the seawater inlet 203 are provided in the lower portion of the housing 210 based on the shape shown in FIG.
  • the inflow and outflow structure shown in Figure 1 is an example showing a structure for the inflow and outflow of seawater.
  • the main seawater supply pipe 220 and the auxiliary seawater supply pipe 230 are provided with nozzles 221 and 231 for spraying the seawater into fine droplets, respectively.
  • the main seawater supply pipe 220 is disposed to extend in the longitudinal direction of the housing 210 and is provided to penetrate the seawater outlet 204.
  • the main seawater supply pipe 220 is provided with a plurality of nozzles 221 spaced apart from each other along the longitudinal direction to supply moisture to the exhaust gas rising while turning to collect foreign substances of the exhaust gas.
  • the principle of collecting foreign substances is that particles collide with droplets, adhere to particles, aggregate between particles by particle diffusion, particles between particles by evaporation of exhaust gas, and promote particle flow and cohesiveness of particles to nuclei, and particles in liquid film and bubbles. Such as attached in contact.
  • the nozzle 221 is illustrated as being provided only in one region of the main seawater supply pipe 220, but is not limited thereto. As illustrated in FIG. 3, the nozzles 221 may be spaced apart from each other along the circumferential direction of the main seawater supply pipe 220. It is more preferable that they are provided to be spaced apart from each other along the longitudinal direction.
  • the plurality of auxiliary seawater supply pipes 230 communicate with the main seawater supply pipe 220 to form a seawater flow path, and are radiated based on a cross section of the housing 210. It is prepared in the form.
  • a plurality of nozzles 231 are provided below the plurality of auxiliary seawater supply pipes 230 to be spaced apart from each other. The sea water sprayed from the nozzle 231 is sprayed to face the bottom surface of the housing 210, and collects foreign substances in the exhaust gas that is turned and rotates inside the housing 210, and then falls downward to fall toward the purifier 310. Will move.
  • auxiliary seawater supply pipes 230 are provided in a radial shape, moisture can be evenly supplied to the exhaust gas without biasing to one side in the housing 210, thereby improving the purification efficiency.
  • the secondary gas is first purified by the main sea water supply pipe 220 and the auxiliary sea water supply pipe 230.
  • the fine nozzle 250 is provided.
  • the fine nozzle 250 is provided with at least two or more spaced apart from each other along the circumferential direction of the housing 210, the cooler to enable the seawater of the fine particles passed through the cooler 320 to be sprayed through the fine nozzle 250 ( 320) through the pipe.
  • the lateral seawater injection by the nozzle of the main seawater supply pipe 220, the downward seawater injection by the nozzle of the auxiliary seawater supply pipe 230, the multi-step seawater injection by the fine nozzle 250 Through seawater spraying, PM, SOx, etc. contained in the exhaust gas can be collected more efficiently. In other words, it is possible to increase the purification area by increasing the contact area between foreign matter and seawater.
  • the blocking wall 260 near the exhaust gas outlet 202 of the housing 210 so that the seawater fine droplets containing foreign matter contained in the exhaust gas fall and discharged to the seawater outlet 204. Is provided.
  • the blocking wall 260 is continuously provided along the inner wall circumferential direction of the housing 210 and has a shape protruding by a predetermined distance from the inner wall of the housing 210.
  • a certain amount of the seawater is also turned up and down at the same time by the turning up and down movement of the exhaust gas.
  • the blocking wall 260 serves to separate the gas liquid from the organism composed of the rising exhaust gas and seawater particles.
  • the barrier wall 260 provides a venturi effect in addition to the gas-liquid separation function, so that the purified exhaust gas can be quickly discharged.
  • a bent portion 261 that is bent toward the bottom surface side of the housing 210 is further provided at the end of the blocking wall 260.
  • the seawater discharge guide 270 for moving the seawater to the seawater circulation supply unit 300 is inclined separately from the seawater discharge port 204 in the lower region of the housing 210.
  • the seawater discharge guide 270 is disposed in an inclined state along the inner wall circumferential direction of the housing 210, and more easily discharges seawater to the seawater circulation supply unit 300.
  • the internal pressure of the housing 210 is excessively increased, so that the shape of the housing 210 is deformed or the backwater is prevented from backflowing the seawater to increase the engine load. Will be prevented.
  • the seawater discharge guide 270 is provided with a separate seawater discharge hole (not shown) for discharging the seawater after cleaning the exhaust gas, the pipe connected to the seawater discharge hole is a seawater discharge port 204 It is made in communication with the pipe connected to the specific part.
  • the housing 210 includes a first housing 211 provided with an exhaust gas outlet 202, a second housing 212 provided with an exhaust gas inlet 201, and a seawater outlet (
  • the third housing 213 provided with the 204 has a structure connected in sequence.
  • first to third housings 211, 212, 213 are coupled to each other so as to be separated from each other.
  • Such a coupling may be applied to a flange coupling method, and as described above, in case of corrosion and abnormality of the internal structure of the housing 210 due to seawater, the operator may easily repair and replace the first to third housings 211, 212 and 213. You can do it.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

The present invention relates to an apparatus for purifying exhaust gas from a ship. More particularly, the present invention relates to an apparatus for purifying exhaust gas from a ship, in which a configuration for purifying exhaust gas from a ship can be created in a simple and inexpensive manner and seawater passed through a purification process is recycled rather than discharged, thus minimizing seawater contamination caused by discharged water.

Description

선박용 배기 가스 정화장치Marine Exhaust Gas Purifier
본 발명은, 선박용 배기 가스 정화장치에 관한 것으로서, 보다 상세하게는, 선박 배기 가스를 정화하기 위한 구성이 간단하고 비용 또한 저렴하게 구성할 수 있으며, 정화 작업을 거친 해수를 배출하지 않고 순환처리(리사이클링)하여 사용함으로써 배출수에 의한 해수 오염을 최소화할 수 있는 선박용 배기 가스 정화장치에 관한 것이다.The present invention relates to a ship exhaust gas purifying apparatus, and more particularly, the configuration for purifying ship exhaust gas can be configured simply and cost-effectively, and the circulation treatment without discharging the seawater that has undergone purification work ( The present invention relates to a marine exhaust gas purification apparatus capable of minimizing seawater contamination by discharged water.
일반적으로, 온실가스 배출저감을 위한 교토의정서 제1차 이행기간이 개시된 2008년을 전후하여 해운항만 부문의 세계 주요 정책당국과 관련기업은 녹색물류 실현을 위해 친환경 기술개발 및 정책을 대대적으로 도입하여 조선 산업 제품의 질적 변화를 요구하고 있다.In general, around 2008, when the first implementation of the Kyoto Protocol to reduce greenhouse gas emissions began, major global policy authorities and related companies in the maritime and port sectors introduced eco-friendly technology development and policies to realize green logistics. It is calling for a qualitative change in shipbuilding products.
일 예로, 해양 및 대기오염 규제에 따른 설비 기준 등이 강화됨에 따라 현존 선박들은 규제 기준에 부합하는 장비를 탑재해야 한다.For example, with the tightening of marine and air pollution regulations, existing vessels must be equipped with equipment that meets regulatory standards.
선박의 배기 가스 정화를 위한 종래의 워터 스크러버 시스템(water scrubber system)은, Holding tank, make-up tank, Chemical addition 등 청수의 특성상 부가적인 설비를 필요로 하기 때문에 시스템이 복잡하고, 제작 및 설치비용이 높은 단점이 있다.The conventional water scrubber system for the purification of the exhaust gas of a ship is complicated due to the nature of fresh water such as holding tank, make-up tank, chemical addition, etc. This has a high disadvantage.
또한, 종래의 시스템은 선박의 배기 가스를 정화하는 세정수(해수)를 다시 세정하여 배출하는 방식을 사용하고 있으며, 따라서 배출수로 인한 해수의 오염을 초래하였다.In addition, the conventional system uses a method of cleaning and discharging the washing water (sea water) to purify the exhaust gas of the ship, thus causing pollution of the sea water due to the discharge water.
본 발명의 목적은, 선박 배기 가스를 정화하기 위한 구성이 간단하고 비용 또한 저렴하게 구성할 수 있는 선박용 배기 가스 정화장치를 제공하는 것이다.It is an object of the present invention to provide a ship exhaust gas purification apparatus which can be configured simply and cost-effectively for the ship exhaust gas purification.
본 발명의 다른 목적은, 정화 작업을 거친 해수를 배출하지 않고 순환처리(리사이클링)하여 사용함으로써 배출수에 의한 해수 오염을 최소화할 수 있는 선박용 배기 가스 정화장치를 제공하는 것이다.Another object of the present invention is to provide a marine exhaust gas purification apparatus capable of minimizing seawater contamination by discharged water by circulating (recycling) the wastewater without purifying the purified water.
본 발명의 해결과제는 이상에서 언급된 것들에 한정되지 않으며, 언급되지 아니한 다른 해결과제들은 아래의 기재로부터 당업자에게 명확하게 이해되어 질 수 있을 것이다.The problem of the present invention is not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.
상기 목적은, 선박의 배기 가스를 정화하기 위한 장치로서, 해수를 유입하는 해수 유입부; 상기 해수 유입부와 배관을 통해 연결되며, 상기 해수 유입부에 의해 유입된 해수 및 상기 선박의 배기 가스가 내부로 유입된 후 상기 해수에 의해 정화된 배기 가스를 외부로 배출하는 습식 스크러버; 및 상기 습식 스크러버에서 배기 가스를 정화한 후 배출된 해수를 농도 조절하여 다시 상기 습식 스크러버로 재공급하는 해수 순환공급부를 포함하되, 상기 습식 스크러버는, 정화전의 배기 가스가 유입되는 배기가스 유입구, 정화된 배기 가스가 배출되는 배기가스 배출구, 상기 해수 유입부와 연결되는 해수 유입구, 및 배기 가스를 정화시킨 해수를 배출하는 해수 배출구가 마련된 하우징; 상기 하우징의 내측에 배치되어 상기 하우징 내측으로 해수를 공급하는 메인 해수 공급관; 및 상기 메인 해수 공급관의 단부 영역에 방사상으로 마련되어 해수를 방사 형태로 분무하는 복수의 보조 해수 공급관을 포함하는 선박용 배기 가스 정화장치에 의해서 달성된다.An object of the present invention is to provide an apparatus for purifying exhaust gas of a ship, comprising: a seawater inlet for introducing seawater; A wet scrubber connected to the seawater inlet and a pipe and configured to discharge the seawater introduced by the seawater inlet and the exhaust gas of the vessel into the outside, and then discharge the exhaust gas purified by the seawater to the outside; And a seawater circulation supply unit for purifying exhaust gas from the wet scrubber and re-supplying the discharged seawater to the wet scrubber, wherein the wet scrubber includes an exhaust gas inlet through which the exhaust gas before purification is introduced, and is purified. A housing provided with an exhaust gas outlet for discharging the exhaust gas, a seawater inlet connected to the seawater inlet, and a seawater outlet for discharging seawater purifying exhaust gas; A main sea water supply pipe disposed inside the housing to supply sea water to the inside of the housing; And a plurality of auxiliary seawater supply pipes disposed radially in the end region of the main seawater supply pipe and spraying seawater in a radial form.
상기 배기가스 유입구와 연통되는 배기가스 유입관은 상기 하우징에 대해 일정 이상 경사지면서 법선 방향으로 연결되어 배기 가스가 상기 하우징의 내벽을 따라 선회하면서 상승 이동하도록 하고, 상기 메인 해수 공급관 및 상기 보조 해수 공급관에는 각각 해수를 미세 액적 상태로 분무하기 위한 노즐이 마련될 수 있다.The exhaust gas inlet pipe communicating with the exhaust gas inlet is inclined more than a predetermined angle and connected in a normal direction so that the exhaust gas moves upward while turning along the inner wall of the housing, and the main sea water supply pipe and the auxiliary sea water supply pipe Each nozzle may be provided with a nozzle for spraying the seawater in a fine droplet state.
상기 복수의 보조 해수 공급관은 상기 메인 해수 공급관과 연통하여 해수 유로를 형성하며, 상기 하우징의 횡단면을 기준으로 방사형태로 마련될 수 있다.The plurality of auxiliary seawater supply pipes communicate with the main seawater supply pipe to form a seawater flow path, and may be provided in a radial shape with respect to the cross section of the housing.
상기 하우징의 배기가스 배출구 근처에는 상기 메인 해수 공급관 및 보조 해수 공급관에 의해 1차적으로 정화된 배기 가스를 다시 2차적으로 정화하기 위한 미세 노즐이 마련될 수 있다.A fine nozzle may be provided near the exhaust gas discharge port of the housing to secondarily purify the exhaust gas primarily purified by the main sea water supply pipe and the auxiliary sea water supply pipe.
상기 하우징의 배기가스 배출구 근처에는 상기 배기가스에 포함된 이물질을 함유하고 있는 해수 미세 액적이 낙하하여 상기 해수 배출구로 배출되도록 차단벽이 마련될 수 있다.A barrier wall may be provided near the exhaust gas outlet of the housing so that the seawater fine droplets containing foreign substances contained in the exhaust gas fall and are discharged to the seawater outlet.
상기 하우징의 하부 영역에는 상기 해수 배출구와는 별도로 해수를 상기 해수 순환공급부 측으로 이동시키기 위한 해수배출가이드가 마련될 수 있다.A seawater discharge guide may be provided in the lower region of the housing to move seawater to the seawater circulation supply part separately from the seawater discharge port.
상기 하우징은, 상기 배기가스 배출구가 마련되는 제1 하우징; 상기 배기가스 유입구가 마련되는 제2 하우징; 및 상기 해수 배출구가 마련되는 제3 하우징이 순차적으로 연결된 구조를 갖되, 상기 제1 내지 제3 하우징은 서로 간에 분리 가능하도록 결합될 수 있다.The housing may include a first housing in which the exhaust gas outlet is provided; A second housing provided with the exhaust gas inlet; And a third housing in which the seawater discharge port is provided is sequentially connected, and the first to third housings may be coupled to each other.
본 발명의 실시형태에 따른 선박용 배기 가스 정화장치는 다음과 같은 효과를 갖는다.The ship exhaust gas purification apparatus which concerns on embodiment of this invention has the following effects.
첫째, 선박 배기 가스를 정화하기 위한 구성이 간단하고 비용 또한 저렴하게 구성할 수 있어 경제적인 이점이 크다.First, since the configuration for purifying the ship exhaust gas is simple and can be configured inexpensively, the economical advantage is large.
둘째, 정화 작업을 거친 해수를 배출하지 않고 순환처리(리사이클링)하여 사용함으로써 배출수에 의한 해수 오염을 최소화할 수 있다.Second, by circulating (recycling) the wastewater without discharging the purified water, it is possible to minimize the seawater contamination by the discharged water.
셋째, 메인 해수 공급관, 보조 해수 공급관 및 미세 노즐을 통한 해수 분사를 통해 배기 가스에 포함된 PM, SOx 등의 집진 효율을 더욱 증대시킬 수 있다.Third, dust collection efficiency of PM, SOx, etc. included in the exhaust gas may be further increased through seawater injection through the main seawater supply pipe, the auxiliary seawater supply pipe, and the fine nozzle.
넷째, 시스템 가동 off시 정화수 저장탱크에 저장된 청수를 하우징 내부로 공급함으로써 하우징의 부식을 최대한 방지할 수 있다.Fourth, it is possible to prevent corrosion of the housing to the maximum by supplying fresh water stored in the purified water storage tank into the housing when the system is off.
다섯째, 하우징 내벽에 차단벽을 마련함으로써, 이물질을 함유하고 있는 해수 미세 액적이 외부로 배출되지 않고 하우징 내부로 낙하하도록 할 수 있다.Fifth, by providing a blocking wall on the inner wall of the housing, it is possible to make the seawater fine droplets containing foreign substances fall into the housing without being discharged to the outside.
본 발명의 효과는 이상에서 언급된 것들에 한정되지 않으며, 언급되지 아니한 다른 효과들은 아래의 기재로부터 당업자에게 명확하게 이해되어 질 수 있을 것이다.The effects of the present invention are not limited to those mentioned above, and other effects that are not mentioned will be clearly understood by those skilled in the art from the following description.
도 1은 본 발명의 실시예에 따른 선박용 배기 가스 정화장치를 나타내는 구성도이다.1 is a block diagram showing a ship exhaust gas purification apparatus according to an embodiment of the present invention.
도 2는 본 발명의 실시예에 따른 선박용 배기 가스 정화장치의 습식 스크러버를 나타내는 절개사시도이다.2 is a cutaway perspective view showing a wet scrubber of a ship exhaust gas purifying apparatus according to an embodiment of the present invention.
도 3은 본 발명의 실시예에 따른 선박용 배기 가스 정화장치의 습식 스크러버의 메인 해수 공급관 및 보조 해수 공급관을 나타내는 단면도이다.3 is a cross-sectional view showing the main sea water supply pipe and the auxiliary sea water supply pipe of the wet scrubber of the ship exhaust gas purifying apparatus according to an embodiment of the present invention.
도 4는 본 발명의 실시예에 따른 선박용 배기 가스 정화장치의 습식 스크러버의 보조 해수 공급관의 배치 상태를 나타내는 평면도이다.4 is a plan view showing the arrangement of the auxiliary seawater supply pipe of the wet scrubber of the ship exhaust gas purifying apparatus according to an embodiment of the present invention.
이하, 첨부된 도면을 참조하여 본 발명의 실시예를 더욱 상세히 설명하기로 한다. 그러나 본 발명은 이하에서 개시되는 실시예에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이다. 도면상에서 동일 부호는 동일한 요소를 지칭한다. Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention in more detail. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the embodiments are intended to complete the disclosure of the present invention, and to those skilled in the art to fully understand the scope of the invention. It is provided to inform you. Like numbers refer to like elements in the figures.
도 1은 본 발명의 실시예에 따른 선박용 배기 가스 정화장치를 나타내는 구성도이고, 도 2는 본 발명의 실시예에 따른 선박용 배기 가스 정화장치의 습식 스크러버를 나타내는 절개사시도이며, 도 3은 본 발명의 실시예에 따른 선박용 배기 가스 정화장치의 습식 스크러버의 메인 해수 공급관 및 보조 해수 공급관을 나타내는 단면도이고, 도 4는 본 발명의 실시예에 따른 선박용 배기 가스 정화장치의 습식 스크러버의 보조 해수 공급관의 배치 상태를 나타내는 평면도이다.1 is a configuration diagram showing a marine exhaust gas purification apparatus according to an embodiment of the present invention, Figure 2 is a cutaway perspective view showing a wet scrubber of a marine exhaust gas purification apparatus according to an embodiment of the present invention, Figure 3 is a present invention 4 is a cross-sectional view illustrating a main seawater supply pipe and an auxiliary seawater supply pipe of a wet scrubber of a ship exhaust gas purification device according to an embodiment of the present invention, and FIG. 4 is an arrangement of the auxiliary seawater supply pipe of the wet scrubber of the ship exhaust gas purification device according to an embodiment of the present invention. It is a top view which shows a state.
본 발명의 바람직한 일 실시 예에 따른 선박용 배기 가스 정화장치(이하, 정화장치)는, 특히 중소형 선박의 엔진 배기가스의 오염물질(PM, SOx 등)을 저감하기 위한 순환처리장치로서, 배기가스를 정화하고 난 배출수로 인한 해수오염을 방지하여 IMO 국제 규정에 적합하도록 마련된다. 부연하자면, 해수에 포함된 나트륨 성분과 황(S)성분이 서로 결합 반응하는 원리를 이용하여 배기 가스를 정화하는 것이다. The ship exhaust gas purifying apparatus (hereinafter, referred to as purifier) according to an exemplary embodiment of the present invention is a circulating treatment apparatus for reducing pollutants (PM, SOx, etc.) of engine exhaust gas of a small and medium-sized ship, in particular, exhaust gas It is designed to comply with IMO international regulations by preventing sea pollution from purified effluents. In other words, the exhaust gas is purified using the principle that the sodium component and the sulfur (S) component in the seawater are combined and reacted with each other.
도 1에 도시한 바와 같이, 본 발명의 실시예에 따른 정화장치는, 선박의 배기 가스를 정화하기 위한 장치로서, 해수를 유입하는 해수 유입부(100), 해수 유입부(100)와 배관을 통해 연결되며, 해수 유입부(100)에 의해 유입된 해수 및 선박의 배기 가스가 내부로 유입된 후 해수에 의해 정화된 배기 가스를 외부로 배출하는 습식 스크러버(200), 및 습식 스크러버(200)에서 배기 가스를 정화한 후 배출된 해수를 농도 조절하여 다시 습식 스크러버(200)로 재공급하는 해수 순환공급부(300)를 포함한다.As shown in FIG. 1, a purifier according to an exemplary embodiment of the present invention is a device for purifying exhaust gas of a ship, and includes a seawater inflow unit 100, a seawater inflow unit 100, and piping for introducing seawater. Is connected through, the seawater introduced by the seawater inlet 100 and the exhaust gas of the vessel is introduced into the wet scrubber 200 to discharge the exhaust gas purified by the seawater to the outside, and the wet scrubber 200 After purifying the exhaust gas in the concentration control the discharged seawater is supplied back to the wet scrubber 200 includes a seawater circulation supply unit 300.
먼저, 해수 유입부(100)는 선박의 운항 중 해수(선박 밸러스트수)를 유입 가능하도록 마련되는 해수 유입배관과 해수 유입배관 상에 마련되어 흡입압력을 제공하는 펌프로 이루어진다.First, the seawater inlet 100 is composed of a seawater inlet pipe and a seawater inlet pipe provided on the seawater inlet pipe provided to enable the inflow of seawater (ship ballast water) during operation of the ship.
이하, 설명하는 해수는, 국제해사기구(IMO)의 밸러스트수 관리 협약 2004(BWM 협약)에 따라 오존첨가나 전기분해를 이용해 처리된 해수이다. 오존첨가나 전기분해를 이용해 선 처리된 해수의 경우 기존의 해수에 비해 SOx와의 결합이 더욱 활성화 되어 SOx의 저감률을 향상시키는 장점을 가지고 있다.The seawater described below is seawater treated with ozone addition or electrolysis according to the International Maritime Organization (IMO) Ballast Water Management Convention 2004 (BWM Convention). In the case of seawater pretreated by ozone addition or electrolysis, the bonding with SOx is more activated than existing seawater, which has the advantage of improving the reduction rate of SOx.
또한, 해수 유입부(100)는 전술한 펌프에 의해 흡입된 해수를 저장하는 해수 저장탱크(110)를 포함한다. 이러한 해수 저장탱크(110)는 해수 공급배관을 통해 습식 스크러버(200)의 해수 유입구와 연결된다. 여기서, 해수 공급배관에는 별도의 유량제어밸브(미도시)가 마련되고 습식 스크러버(200)에는 내부에 수용된 해수의 수위를 체킹하는 레벨 게이지가 마련되며, 레벨 게이지의 측정값에 기반하여 유량제어밸브의 개방 및 폐쇄 정도가 조절 가능하다.In addition, the seawater inlet 100 includes a seawater storage tank 110 for storing the seawater sucked by the pump described above. The seawater storage tank 110 is connected to the seawater inlet of the wet scrubber 200 through the seawater supply pipe. Here, a separate flow control valve (not shown) is provided in the sea water supply pipe, and the wet scrubber 200 is provided with a level gauge for checking the level of seawater contained therein, and a flow control valve based on the measured value of the level gauge. The degree of opening and closing is adjustable.
한편, 도 1에 도시한 바와 같이, 해수 공급배관에는 별도의 정화수 저장탱크(400)가 배관을 통해 연결된다. 정화수 저장탱크(400)에는 해수가 아닌 청수가 저장되어 있으며, 본 실시예에 따른 정화장치의 작동 정지시 습식 스크러버(200) 내부로 청수를 공급하여 해수에 의한 습식 스크러버(200)의 부식 발생을 방지하여 수명을 증가시킬 수 있게 된다.On the other hand, as shown in Figure 1, the seawater supply pipe is connected to a separate purification water storage tank 400 through the pipe. The purified water storage tank 400 stores fresh water, not sea water, and supplies fresh water into the wet scrubber 200 when the purifying device stops operating according to the present embodiment to prevent corrosion of the wet scrubber 200 by sea water. Can increase the lifespan.
다음, 습식 스크러버(200)는, 해수 유입부(100)와 배관을 통해 연결되며 해수 유입부(100)에 의해 유입된 해수 및 선박의 배기 가스가 내부로 유입된 후 해수에 의해 정화된 배기 가스를 외부로 배출하게 된다. 이러한 습식 스크러버(200)의 구체적인 내부 구성은 후술하기로 한다.Next, the wet scrubber 200 is connected to the seawater inlet 100 through a pipe and the exhaust gas purified by seawater after the seawater introduced by the seawater inlet 100 and the exhaust gas of the vessel enters the inside. Will be discharged to the outside. Specific internal configuration of the wet scrubber 200 will be described later.
도 1에 도시한 바와 같이, 해수 순환공급부(300)는, 습식 스크러버(200)에서 배기 가스를 정화한 후 배출된 해수를 농도 조절하여 다시 습식 스크러버(200)로 재공급하도록 마련된다.As shown in FIG. 1, the seawater circulation supply unit 300 is provided to re-supply the wet scrubber 200 by adjusting the concentration of the discharged seawater after purifying the exhaust gas from the wet scrubber 200.
이러한 해수 순환공급부(300)는, 습식 스크러버(200)의 해수 배출구(204)와 배관을 통해 연결되는 정화기(310, PURUFIER), 정화기(310)와 배관을 통해 연결되며 정화기(310)를 통해 정화된 해수의 온도를 감소하는 쿨링기(320, cooler)를 포함한다. 또한, 해수 순환공급부(300)는, 정화기(310)와 쿨링기(320)의 사이에 마련되어 정화기(310)로부터 공급된 해수의 농도(PH 농도)를 조절, 구체적으로 습식 스크러버(200)에서 배기 가스 정화를 통해 나트륨 농도가 감소한 비율을 다시 보상하여 초기 유입시의 해수와 동일한 농도를 갖도록 하는 농도 조절 믹서(330)를 포함한다.The sea water circulation supply unit 300 is connected to the seawater outlet 204 of the wet scrubber 200 through a pipe and a purifier 310 and a purifier 310 connected through a pipe and purified through a purifier 310. It includes a cooler (320, cooler) for reducing the temperature of the sea water. In addition, the seawater circulation supply unit 300 is provided between the purifier 310 and the cooler 320 to adjust the concentration (PH concentration) of the seawater supplied from the purifier 310, specifically, the exhaust from the wet scrubber 200 And a concentration control mixer 330 for compensating again for the rate at which sodium concentration is reduced through gas purification to have the same concentration as the seawater at the time of initial inflow.
본 실시예에서, 정화기(310)는 원심력을 이용하여 습식 스크러버(200)에서 배기 가스를 정화하여 배기가스의 이물질을 함유하고 있는 해수의 이물질을 분리하는 것으로서, 일 예로 회전하는 원통에 비중이 다른 물질이 혼합된 액체를 넣고 고속으로 회전시켜 비중차에 따라 해수와 이물질이 분리되도록 한다.In the present embodiment, the purifier 310 purifies the exhaust gas from the wet scrubber 200 using centrifugal force to separate foreign substances of seawater containing foreign substances of the exhaust gas. For example, the specific gravity is different from the rotating cylinder. Insert the mixed liquid and rotate it at high speed to separate the seawater and foreign substances according to the specific gravity difference.
본 실시예에서는, 정화기(310)에 의해 이물질이 분리된 해수를 다시 배기가스 정화를 위한 용도로 재사용하며, 걸러진 PM, SOx 등과 같은 슬러지는 별도의 슬러지 탱크(340)에 저장된 후 폐기 처리된다.In this embodiment, the seawater from which the foreign matter is separated by the purifier 310 is reused again for the purpose of purifying exhaust gas, and the sludge, such as filtered PM and SOx, is stored in a separate sludge tank 340 and then disposed of.
농도 조절 믹서(330)는 정화기(310)를 통해 분리된 해수의 PH 농도를 조절한다. 부연하자면, 해수는 습식 스크러버(200) 내에서 배기 가스에 포함된 PM, SOx 성분을 정화하는 과정에서 PH 농도가 초기보다 변하게 되며, 농도 조절 믹서(330)는 해수의 PH 농도를 다시 초기 투입시의 해수와 동일 또는 유사한 정도로 조절하게 된다.The concentration control mixer 330 adjusts the pH concentration of the seawater separated through the purifier 310. In other words, the pH of the seawater changes in the wet scrubber 200 in the process of purifying the PM, SOx components contained in the exhaust gas than the initial, the concentration control mixer 330 when the initial input of the pH concentration of the seawater again It is adjusted to the same or similar degree to the seawater of.
쿨링기(320)는 농도 조절 믹서(330)에서의 농도 조절 과정시 증가된 해수의 온도를 저감하여 초기 투입시의 해수 온도와 유사하게 만든다. 여기서, 쿨링기(320)를 통과한 해수는 습식 스크러버(200)로 재공급되어 다시 배기 가스를 정화하게 된다. 구체적으로, 전술한 해수는 습식 스크러버(200)의 메인 해수 공급관(220) 및 미세 노즐(250)로 각각 공급 가능하다. 한편, 본 실시예에서는, 농도 조절 믹서(330)와 쿨링기(320)를 연결하는 배관 및 습식 스크러버(200)와 정화기(310)를 연결하는 배관상에 해수를 이송시키기 위한 이송압을 제공하도록 펌프가 설치된다.The cooler 320 reduces the temperature of the increased seawater during the concentration control process in the concentration control mixer 330 to make it similar to the seawater temperature at the time of initial input. Here, the seawater passing through the cooler 320 is supplied back to the wet scrubber 200 to purify the exhaust gas again. Specifically, the above-described seawater may be supplied to the main seawater supply pipe 220 and the fine nozzle 250 of the wet scrubber 200, respectively. On the other hand, in the present embodiment, to provide a feed pressure for transferring the seawater on the pipe connecting the concentration control mixer 330 and the cooler 320 and the pipe connecting the wet scrubber 200 and the purifier 310. The pump is installed.
즉, 본 실시예는, 배기 가스의 정화작업을 마친 해수를 다시 재사용하여 정화작업의 효율을 증대시킬 수 있으며, 정화기(310)에 의해 걸러진 PM, SOx 등을 별도로 처분함으로써 바닷물의 오염을 방지하여 친환경적으로 적용 가능한 이점이 있다. 본 실시예는, 해수를 순환처리(리사이클링)하여 사용함으로써 배출수에 의한 해수 오염을 최소화할 수 있게 된다.That is, according to the present embodiment, the efficiency of the purification operation can be increased by reusing the seawater after the purification of the exhaust gas is finished, and the pollution of seawater can be prevented by separately disposing PM, SOx, and the like filtered by the purifier 310. There is an environmentally applicable advantage. In this embodiment, by circulating (recycling) the seawater, it is possible to minimize seawater contamination by the discharged water.
다음, 도 2에 도시한 바와 같이, 습식 스크러버(200)는 실질적으로 선박의 배기 가스에 포함된 PM, SOx 성분을 분리하여 세정된 배기 가스를 배출하도록 마련된 것으로서, 해수 유입부(100)와 배관을 통해 연결되며 해수 유입부(100)에 의해 유입된 해수 및 선박의 배기 가스가 내부로 유입된 후 해수에 의해 정화된 배기 가스를 외부로 배출하게 된다.Next, as shown in FIG. 2, the wet scrubber 200 is provided to discharge the cleaned exhaust gas by separating the PM and SOx components substantially included in the exhaust gas of the ship, and the seawater inlet 100 and the pipe It is connected through the seawater inlet 100, the seawater and the exhaust gas of the vessel is introduced into the interior to discharge the exhaust gas purified by seawater to the outside.
이러한 습식 스크러버(200)는, 정화전의 배기 가스가 유입되는 배기가스 유입구(201), 정화된 배기 가스가 배출되는 배기가스 배출구(202), 해수 유입부(100)와 연결되는 해수 유입구(203), 및 배기 가스를 정화시킨 해수를 배출하는 해수 배출구(204)가 마련된 하우징(210), 하우징(210)의 내측에 배치되어 하우징(210) 내측으로 해수를 공급하는 메인 해수 공급관(220), 및 메인 해수 공급관(220)의 단부 영역에 방사상으로 마련되어 해수를 방사 형태로 분무하는 복수의 보조 해수 공급관(230)을 포함한다.The wet scrubber 200 has an exhaust gas inlet 201 through which the exhaust gas before purification is introduced, an exhaust gas outlet 202 through which the purified exhaust gas is discharged, and a seawater inlet 203 connected with the seawater inlet 100. And a housing 210 provided with a seawater discharge port 204 for discharging seawater purifying exhaust gas, a main seawater supply pipe 220 disposed inside the housing 210 to supply seawater to the inside of the housing 210, and A plurality of auxiliary seawater supply pipe 230 provided radially in the end region of the main seawater supply pipe 220 for spraying seawater in a radial form.
본 실시예에서, 배기가스 유입구(201)와 연통되는 배기가스 유입관(240)은 하우징(210)에 대해 일정 이상 경사지면서 법선 방향으로 연결되어 배기 가스가 하우징(210)의 내벽을 따라 선회하면서 상승 이동하도록 하게 된다. 즉, 하우징(210) 내부로 유입된 배기 가스가 하우징(210) 내벽을 따라 선회하면서 상승하면서 정화작업이 이루어지고 그 후 배기가스 배출구(202)로 배출됨으로써, 하우징(210) 내부에서의 배기가스 체류시간을 증대시켜 보다 효율적인 정화작업이 가능하게 된다. In the present embodiment, the exhaust gas inlet pipe 240 in communication with the exhaust gas inlet 201 is inclined more than a predetermined angle with respect to the housing 210 is connected in the normal direction so that the exhaust gas is pivoting along the inner wall of the housing 210. To move up. That is, as the exhaust gas flowing into the housing 210 rises while turning along the inner wall of the housing 210, a purification operation is performed and then discharged to the exhaust gas outlet 202, thereby exhaust gas in the housing 210. By increasing the residence time, more efficient purification is possible.
한편, 하우징(210) 내부로 유입되어 배기 가스에 포함된 이물질 성분을 포집한 해수는 해수 배출구(204)를 통해 하방으로 배출된다. 본 실시예에서, 해수 배출구(204) 및 해수 유입구(203)는 도 2에 도시된 형상을 기준으로 하우징(210)의 하부에 마련된다. 부연하자면, 도 1에 도시된 유입 및 배출 구조는 해수 유입 및 배출을 위한 구조를 예를 들어 도시한 것이다.On the other hand, the seawater introduced into the housing 210 to collect foreign matter components contained in the exhaust gas is discharged downward through the seawater outlet 204. In this embodiment, the seawater outlet 204 and the seawater inlet 203 are provided in the lower portion of the housing 210 based on the shape shown in FIG. Incidentally, the inflow and outflow structure shown in Figure 1 is an example showing a structure for the inflow and outflow of seawater.
본 실시예에서, 메인 해수 공급관(220) 및 보조 해수 공급관(230)에는 각각 해수를 미세 액적 상태로 분무하기 위한 노즐(221,231)이 마련된다. 부연하자면, 메인 해수 공급관(220)은 하우징(210)의 길이 방향을 따라 길게 배치되고 해수 배출구(204)를 관통하도록 마련된다. 이러한 메인 해수 공급관(220)에는 그 길이 방향을 따라 서로 이격되게 복수의 노즐(221)이 마련되어 선회하면서 상승하는 배기 가스에 수분을 공급하여 배기 가스의 이물질을 포집하게 된다.In the present embodiment, the main seawater supply pipe 220 and the auxiliary seawater supply pipe 230 are provided with nozzles 221 and 231 for spraying the seawater into fine droplets, respectively. In other words, the main seawater supply pipe 220 is disposed to extend in the longitudinal direction of the housing 210 and is provided to penetrate the seawater outlet 204. The main seawater supply pipe 220 is provided with a plurality of nozzles 221 spaced apart from each other along the longitudinal direction to supply moisture to the exhaust gas rising while turning to collect foreign substances of the exhaust gas.
이러한 이물질 포집 원리는, 액적에 입자가 충돌하여 부착, 미립자 확산에 의한 입자간 응집, 배기가스의 증습에 의한 입자간 응집, 입자를 핵으로 증기의 용길 및 응집성 촉진, 및 액막, 기포에 입자가 접촉하여 부착되는 것 등과 같다.The principle of collecting foreign substances is that particles collide with droplets, adhere to particles, aggregate between particles by particle diffusion, particles between particles by evaporation of exhaust gas, and promote particle flow and cohesiveness of particles to nuclei, and particles in liquid film and bubbles. Such as attached in contact.
한편, 도 2에서 노즐(221)은 메인 해수 공급관(220)의 일측 영역에만 마련된 것으로 도시되었지만 이에 한정되지 않으며, 도 3에 도시한 바와 같이 메인 해수 공급관(220)의 원주 방향을 따라 이격되게 복수로 마련되고 그 길이 방향을 따라서도 복수로 이격되게 형성되는 것이 보다 바람직하다. Meanwhile, in FIG. 2, the nozzle 221 is illustrated as being provided only in one region of the main seawater supply pipe 220, but is not limited thereto. As illustrated in FIG. 3, the nozzles 221 may be spaced apart from each other along the circumferential direction of the main seawater supply pipe 220. It is more preferable that they are provided to be spaced apart from each other along the longitudinal direction.
본 실시예에서, 도 3 및 도 4에 도시한 바와 같이, 복수의 보조 해수 공급관(230)은 메인 해수 공급관(220)과 연통하여 해수 유로를 형성하며, 하우징(210)의 횡단면을 기준으로 방사형태로 마련된다. 이러한 복수의 보조 해수 공급관(230)의 하부에는 마찬가지로 서로 이격되게 복수의 노즐(231)이 마련된다. 이러한 노즐(231)로부터 분무된 해수는 하우징(210)의 바닥면을 향하도록 분무되며, 하우징(210) 내부에서 선회하며 상승하는 배기 가스의 이물질을 포집한 후 하방으로 낙하하여 정화기(310) 측으로 이동하게 된다.3 and 4, the plurality of auxiliary seawater supply pipes 230 communicate with the main seawater supply pipe 220 to form a seawater flow path, and are radiated based on a cross section of the housing 210. It is prepared in the form. A plurality of nozzles 231 are provided below the plurality of auxiliary seawater supply pipes 230 to be spaced apart from each other. The sea water sprayed from the nozzle 231 is sprayed to face the bottom surface of the housing 210, and collects foreign substances in the exhaust gas that is turned and rotates inside the housing 210, and then falls downward to fall toward the purifier 310. Will move.
이와 같이, 복수의 보조 해수 공급관(230)이 방사형태로 마련됨으로써 하우징(210) 내부에서 어느 일측으로 치우침이 없이 배기 가스에 골고루 수분을 공급할 수 있으므로 정화 효율을 향상시킬 수 있게 된다.As such, since the plurality of auxiliary seawater supply pipes 230 are provided in a radial shape, moisture can be evenly supplied to the exhaust gas without biasing to one side in the housing 210, thereby improving the purification efficiency.
도 1에 도시한 바와 같이, 하우징(210)의 배기가스 배출구(202) 근처에는 메인 해수 공급관(220) 및 보조 해수 공급관(230)에 의해 1차적으로 정화된 배기 가스를 다시 2차적으로 정화하기 위한 미세 노즐(250)이 마련된다.As shown in FIG. 1, near the exhaust gas outlet 202 of the housing 210, the secondary gas is first purified by the main sea water supply pipe 220 and the auxiliary sea water supply pipe 230. The fine nozzle 250 is provided.
이러한 미세 노즐(250)은 하우징(210)의 원주 방향을 따라 서로 이격되게 적어도 2개 이상 마련되며 쿨링기(320)를 거친 미세 입자의 해수가 미세 노즐(250)을 통해 분사 가능하도록 쿨링기(320)와 배관을 통해 연결된다.The fine nozzle 250 is provided with at least two or more spaced apart from each other along the circumferential direction of the housing 210, the cooler to enable the seawater of the fine particles passed through the cooler 320 to be sprayed through the fine nozzle 250 ( 320) through the pipe.
즉, 본 실시예는, 메인 해수 공급관(220)의 노즐에 의한 측방향 해수 분사, 보조 해수 공급관(230)의 노즐에 의한 하측 방향 해수 분사, 미세 노즐(250)에 의한 하측 방향 해수 분사의 다단계 해수 분사작업을 통해 배기 가스에 포함된 PM, SOx 성분 등을 보다 효율적으로 포집할 수 있게 된다. 부연하자면, 이물질과 해수의 접촉면적을 증대시켜 정화 효율을 상승시킬 수 있다.That is, in this embodiment, the lateral seawater injection by the nozzle of the main seawater supply pipe 220, the downward seawater injection by the nozzle of the auxiliary seawater supply pipe 230, the multi-step seawater injection by the fine nozzle 250 Through seawater spraying, PM, SOx, etc. contained in the exhaust gas can be collected more efficiently. In other words, it is possible to increase the purification area by increasing the contact area between foreign matter and seawater.
도 1에 도시한 바와 같이, 하우징(210)의 배기가스 배출구(202) 근처에는 배기가스에 포함된 이물질을 함유하고 있는 해수 미세 액적이 낙하하여 해수 배출구(204)로 배출되도록 차단벽(260)이 마련된다.As shown in FIG. 1, the blocking wall 260 near the exhaust gas outlet 202 of the housing 210 so that the seawater fine droplets containing foreign matter contained in the exhaust gas fall and discharged to the seawater outlet 204. Is provided.
차단벽(260)은 하우징(210)의 내벽 둘레방향을 따라 연속적으로 마련되며 하우징(210)의 내벽으로부터 일정 거리만큼 돌출된 형상으로 이루어진다. 한편, 배기 가스의 선회 상승 이동에 의해 해수의 일정량 또한 동시에 선회 상승 이동하게 된다. 이때, 배기 가스의 상승과 더불어 상승 이동한 해수의 미세 액적은 차단벽(260)에 부딪히면서 더 이상 상승하지 못하고 하우징(210) 바닥면 측으로 낙하하게 된다. 즉, 차단벽(260)은 상승하는 배기 가스와 해수 입자로 구성되는 유기체에서 기액을 분리하는 역할을 하게 된다. 이러한 차단벽(260)은 기액 분리 기능 이외에도 벤츄리 효과를 제공하여 정화된 배기가스가 신속하게 배출 가능하도록 한다.The blocking wall 260 is continuously provided along the inner wall circumferential direction of the housing 210 and has a shape protruding by a predetermined distance from the inner wall of the housing 210. On the other hand, a certain amount of the seawater is also turned up and down at the same time by the turning up and down movement of the exhaust gas. At this time, as the exhaust gas rises, the fine droplets of the seawater moving upwardly hit the blocking wall 260 and do not rise any more and fall to the bottom surface of the housing 210. In other words, the blocking wall 260 serves to separate the gas liquid from the organism composed of the rising exhaust gas and seawater particles. The barrier wall 260 provides a venturi effect in addition to the gas-liquid separation function, so that the purified exhaust gas can be quickly discharged.
본 실시예에서는, 도 1에 도시한 바와 같이, 차단벽(260)의 단부에 하우징(210)의 바닥면 측을 향해 절곡되는 절곡부(261)가 더 마련되어 있다. 절곡부(261)를 더 구비함으로 인해, 전술한 바와 같이 상승 이동하는 해수의 미세 입자가 배기가스 배출구(202)를 통해 배출되는 것을 더욱 차단할 수 있을 뿐만 아니라 해수 순환공급부(300)에 의한 해수의 재공급 효율이 감소하는 것을 최소화할 수 있다.In this embodiment, as shown in FIG. 1, a bent portion 261 that is bent toward the bottom surface side of the housing 210 is further provided at the end of the blocking wall 260. By further providing the bent portion 261, as described above, the fine particles of the seawater moving upwardly can be further prevented from being discharged through the exhaust gas outlet 202, and the seawater circulated supply 300 The reduction in resupply efficiency can be minimized.
도 1에 도시한 바와 같이, 하우징(210)의 하부 영역에는 해수 배출구(204)와는 별도로 해수를 해수 순환공급부(300) 측으로 이동시키기 위한 해수 배출가이드(270)가 경사지게 마련된다.As shown in FIG. 1, the seawater discharge guide 270 for moving the seawater to the seawater circulation supply unit 300 is inclined separately from the seawater discharge port 204 in the lower region of the housing 210.
해수 배출가이드(270)는 하우징(210)의 내벽 둘레방향을 따라 경사진 상태로 배치되며, 해수 순환공급부(300) 측으로의 해수 배출을 보다 용이하게 한다. 부연하자면, 해수의 신속한 배출을 유도하여 하우징(210)의 내부 압력이 과하게 증가하여 하우징(210)의 형상이 변형되거나, 백프레셔 현상(back pressure)으로 인해 해수가 역류하는 것을 방지하여 엔진 부하 상승을 방지하게 된다.The seawater discharge guide 270 is disposed in an inclined state along the inner wall circumferential direction of the housing 210, and more easily discharges seawater to the seawater circulation supply unit 300. In other words, by inducing rapid discharge of seawater, the internal pressure of the housing 210 is excessively increased, so that the shape of the housing 210 is deformed or the backwater is prevented from backflowing the seawater to increase the engine load. Will be prevented.
본 실시예에서, 해수 배출가이드(270)가 마련된 부위에는 배기가스 세정을 마친 해수를 배출하기 위한 별도의 해수배출홀(미도시)이 마련되며, 해수배출홀과 연결되는 배관은 해수 배출구(204)와 연결되는 배관과 특정부위에서 연통되게 이루어진다.In the present embodiment, the seawater discharge guide 270 is provided with a separate seawater discharge hole (not shown) for discharging the seawater after cleaning the exhaust gas, the pipe connected to the seawater discharge hole is a seawater discharge port 204 It is made in communication with the pipe connected to the specific part.
도 2에 도시한 바와 같이, 하우징(210)은, 배기가스 배출구(202)가 마련되는 제1 하우징(211), 배기가스 유입구(201)가 마련되는 제2 하우징(212), 및 해수 배출구(204)가 마련되는 제3 하우징(213)이 순차적으로 연결된 구조를 가진다.As shown in FIG. 2, the housing 210 includes a first housing 211 provided with an exhaust gas outlet 202, a second housing 212 provided with an exhaust gas inlet 201, and a seawater outlet ( The third housing 213 provided with the 204 has a structure connected in sequence.
여기서, 제1 내지 제3 하우징(211,212,213)은 서로 간에 분리 가능하도록 결합된다. 이러한 결합은 플랜지 결합 방식 등이 적용 가능하며, 전술한 바와 같이 해수에 의한 하우징(210) 내부구성의 부식 및 이상 발생시 작업자는 제1 내지 제3 하우징(211,212,213)을 분리한 후 용이하게 수리 및 교체 작업을 수행할 수 있다.Here, the first to third housings 211, 212, 213 are coupled to each other so as to be separated from each other. Such a coupling may be applied to a flange coupling method, and as described above, in case of corrosion and abnormality of the internal structure of the housing 210 due to seawater, the operator may easily repair and replace the first to third housings 211, 212 and 213. You can do it.
본 발명을 첨부 도면과 전술된 바람직한 실시예를 참조하여 설명하였으나, 본 발명은 그에 한정되지 않으며, 후술되는 특허청구범위에 의해 한정된다. 따라서, 본 기술분야의 통상의 지식을 가진 자라면 후술되는 특허청구범위의 기술적 사상에서 벗어나지 않는 범위 내에서 본 발명을 다양하게 변형 및 수정할 수 있다.Although the invention has been described with reference to the accompanying drawings and the preferred embodiments described above, the invention is not limited thereto, but is defined by the claims that follow. Accordingly, one of ordinary skill in the art may variously modify and modify the present invention without departing from the spirit of the following claims.

Claims (7)

  1. 선박의 배기 가스를 정화하기 위한 장치로서,An apparatus for purifying exhaust gas of a ship,
    해수를 유입하는 해수 유입부;Sea water inlet for introducing sea water;
    상기 해수 유입부와 배관을 통해 연결되며, 상기 해수 유입부에 의해 유입된 해수 및 상기 선박의 배기 가스가 내부로 유입된 후 상기 해수에 의해 정화된 배기 가스를 외부로 배출하는 습식 스크러버; 및A wet scrubber connected to the seawater inlet and a pipe and configured to discharge the seawater introduced by the seawater inlet and the exhaust gas of the vessel into the outside, and then discharge the exhaust gas purified by the seawater to the outside; And
    상기 습식 스크러버에서 배기 가스를 정화한 후 배출된 해수를 농도 조절하여 다시 상기 습식 스크러버로 재공급하는 해수 순환공급부를 포함하되,It includes a sea water circulation supply for re-supplying back to the wet scrubber by adjusting the concentration of the discharged sea water after purifying the exhaust gas in the wet scrubber,
    상기 습식 스크러버는,The wet scrubber,
    정화전의 배기 가스가 유입되는 배기가스 유입구, 정화된 배기 가스가 배출되는 배기가스 배출구, 상기 해수 유입부와 연결되는 해수 유입구, 및 배기 가스를 정화시킨 해수를 배출하는 해수 배출구가 마련된 하우징;A housing provided with an exhaust gas inlet through which exhaust gas is introduced before purification, an exhaust gas outlet through which purified exhaust gas is discharged, a seawater inlet connected with the seawater inlet, and a seawater outlet through which seawater purified by exhaust gas is discharged;
    상기 하우징의 내측에 배치되어 상기 하우징 내측으로 해수를 공급하는 메인 해수 공급관; 및A main sea water supply pipe disposed inside the housing to supply sea water to the inside of the housing; And
    상기 메인 해수 공급관의 단부 영역에 방사상으로 마련되어 해수를 방사 형태로 분무하는 복수의 보조 해수 공급관을 포함하는 선박용 배기 가스 정화장치.And a plurality of auxiliary seawater supply pipes disposed radially in an end region of the main seawater supply pipe and spraying seawater in a radial form.
  2. 제1항에 있어서,The method of claim 1,
    상기 배기가스 유입구와 연통되는 배기가스 유입관은 상기 하우징에 대해 일정 이상 경사지면서 법선 방향으로 연결되어 배기 가스가 상기 하우징의 내벽을 따라 선회하면서 상승 이동하도록 하고, The exhaust gas inlet pipe communicating with the exhaust gas inlet is inclined more than a predetermined degree and connected in a normal direction so that the exhaust gas moves upward while turning along the inner wall of the housing,
    상기 메인 해수 공급관 및 상기 보조 해수 공급관에는 각각 해수를 미세 액적 상태로 분무하기 위한 노즐이 마련되는 선박용 배기 가스 정화장치.The main seawater supply pipe and the auxiliary seawater supply pipe, respectively, the exhaust gas purification apparatus for a ship is provided with a nozzle for spraying seawater in a fine droplet state.
  3. 제1항에 있어서,The method of claim 1,
    상기 복수의 보조 해수 공급관은 상기 메인 해수 공급관과 연통하여 해수 유로를 형성하며, 상기 하우징의 횡단면을 기준으로 방사형태로 마련되는 선박용 배기 가스 정화장치.The plurality of auxiliary seawater supply pipe is in communication with the main seawater supply pipe to form a seawater flow path, the exhaust gas purification apparatus for a ship provided in a radial form on the basis of the cross section of the housing.
  4. 제1항에 있어서,The method of claim 1,
    상기 하우징의 배기가스 배출구 근처에는 상기 메인 해수 공급관 및 보조 해수 공급관에 의해 1차적으로 정화된 배기 가스를 다시 2차적으로 정화하기 위한 미세 노즐이 마련되는 선박용 배기 가스 정화장치.And a fine nozzle for secondly purifying the exhaust gas primarily purified by the main seawater supply pipe and the auxiliary seawater supply pipe near the exhaust gas discharge port of the housing.
  5. 제1항에 있어서,The method of claim 1,
    상기 하우징의 배기가스 배출구 근처에는 상기 배기가스에 포함된 이물질을 함유하고 있는 해수 미세 액적이 낙하하여 상기 해수 배출구로 배출되도록 차단벽이 마련되는 선박용 배기 가스 정화장치.A marine exhaust gas purifier for a ship is provided near the exhaust gas outlet of the housing so that the seawater fine droplets containing foreign matter contained in the exhaust gas falls and is discharged to the seawater outlet.
  6. 제1항에 있어서,The method of claim 1,
    상기 하우징의 하부 영역에는 상기 해수 배출구와는 별도로 해수를 상기 해수 순환공급부 측으로 이동시키기 위한 해수배출가이드가 경사지게 마련되는 선박용 배기 가스 정화장치.And a seawater discharge guide inclined in a lower region of the housing to move seawater to the seawater circulation supply side separately from the seawater discharge port.
  7. 제1항에 있어서,The method of claim 1,
    상기 하우징은,The housing,
    상기 배기가스 배출구가 마련되는 제1 하우징;A first housing provided with the exhaust gas outlet;
    상기 배기가스 유입구가 마련되는 제2 하우징; 및A second housing provided with the exhaust gas inlet; And
    상기 해수 배출구가 마련되는 제3 하우징이 순차적으로 연결된 구조를 갖되,The third housing is provided with the sea water outlet has a structure sequentially connected,
    상기 제1 내지 제3 하우징은 서로 간에 분리 가능하도록 결합되는 선박용 배기 가스 정화장치.The first to third housings are marine exhaust gas purification apparatus is coupled to be separated from each other.
PCT/KR2012/011805 2012-12-06 2012-12-28 Apparatus for purifying exhaust gas from ship WO2014088149A1 (en)

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