KR20120015547A - The purify system of exhaust gas in ship - Google Patents

The purify system of exhaust gas in ship Download PDF

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Publication number
KR20120015547A
KR20120015547A KR1020100077720A KR20100077720A KR20120015547A KR 20120015547 A KR20120015547 A KR 20120015547A KR 1020100077720 A KR1020100077720 A KR 1020100077720A KR 20100077720 A KR20100077720 A KR 20100077720A KR 20120015547 A KR20120015547 A KR 20120015547A
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KR
South Korea
Prior art keywords
exhaust gas
exhaust
pipe
scrubber
ship
Prior art date
Application number
KR1020100077720A
Other languages
Korean (ko)
Inventor
김대규
장미숙
Original Assignee
주식회사 시뮬레이션테크
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.)
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Application filed by 주식회사 시뮬레이션테크 filed Critical 주식회사 시뮬레이션테크
Priority to KR1020100077720A priority Critical patent/KR20120015547A/en
Publication of KR20120015547A publication Critical patent/KR20120015547A/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
    • 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
    • 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

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

Abstract

The present invention relates to an exhaust gas purification system mounted on an exhaust pipe for exhausting exhaust gas disposed in a ship. In particular, by making simple structural changes to the exhaust pipes of ships designed to discharge the exhaust gas as it is, the exhaust gas induction pipe and the scrubber are installed, and the exhaust gas is purified through the scrubber by controlling the flow path of the exhaust gas induction pipe. The present invention relates to an exhaust gas purification system of a ship that can be exhausted by air.
The exhaust gas induction pipe of the present invention relates to a ship exhaust gas purification system that allows exhaust gas to be discharged as it is without purification, and in certain cases passes through a scrubber to complete exhaust gas purification and exhaust. will be.

Description

The purify system of exhaust gas in ship}

The present invention relates to an exhaust gas purification system mounted on an exhaust pipe for discharging exhaust gas disposed in a ship. In particular, by making simple structural changes to the exhaust pipes of ships designed to discharge the exhaust gas as it is, the exhaust gas induction pipe and the scrubber are installed, and the exhaust gas is purified through the scrubber by controlling the flow path of the exhaust gas induction pipe. The present invention relates to an exhaust gas purification system of a ship that can be exhausted by air.

The exhaust gas induction pipe of the present invention relates to a ship exhaust gas purification system that allows exhaust gas to be discharged as it is without purification, and in certain cases passes through a scrubber to complete exhaust gas purification and exhaust. will be.

Exhaust gases emitted from vehicles such as ships are toxic, explosive and corrosive, which is not only harmful to the human body but also causes environmental pollution when released into the atmosphere. Therefore, such exhaust gas is required to have a purification process for lowering the content of harmful components below an allowable concentration, and it is gradually mandatory to discharge only the exhaust gas that has undergone such purification process to remove toxic substances into the atmosphere.

In particular, in recent years, due to the damage of harmful gases emitted from the defenseless ships, countries are trying to regulate sequentially through treaties or agreements. Therefore, in the future, the allowance to be discharged per size of the ship is determined, and the emission will also be measured accurately so that information can be exchanged with each other.

Hereinafter, a conventional method of treating a noxious gas will be briefly described. Conventional harmful gas treatment methods include a burning method, a wet method, an adsorption method, and the like. The burning method is mainly a method of treating exhaust gas by decomposing a ignitable gas containing a hydrogen group at a high temperature of about 500 to 800 ° C. in a high temperature combustion chamber, and the wet method mainly by dissolving a water-soluble gas through water to dissolve it. The exhaust gas is treated, and the adsorption method is a method in which harmful gases that are not ignited or insoluble in water are passed through the adsorbent to be purified by physical or chemical adsorption.

Such exhaust gas treatment includes, for example, a scrubbing treatment to remove acid gas or particles from the exhaust gas stream, and thus a device for removing harmful gases or particles contained in the gas using liquid. It is called a scrubber.

FIG. 1 is a configuration diagram for explaining a conventional wet scrubber, in which a gas inlet 1 is installed above the scrubber and a diaphragm 4 is placed in the center thereof. When water is sprayed into the spray nozzle 2 formed in the scrubber, the water is moved to the absorber 3.

When gas molecules enter the gas inlet, the gases react with the water through the sprayed space and the absorber, and only the remaining gases are moved upward through the lower part of the diaphragm and exhausted through the exhaust pipe 5. Here, the absorber (3) is to give a time to widen the surface area and react when the gas passes, and often has a large rice pad form. At this time, the water reacted with the gas is introduced into the water circulation tank 7 through the water drain pipe (6).

However, the method of increasing the reaction rate and purification rate by installing an absorber or other structure as described above can take up a lot of volume in space, and in order to increase the reaction rate, a cooling device for lowering the temperature of the reaction gas is used separately. There was a problem in applying to a vehicle such as a car.

Accordingly, the inventors of the present invention provide a cyclone scrubber suitable for use in a moving scrubber, such as a ship, in which a scrubber is used, which not only requires a minimum space while expanding the reaction surface area and maximizing the reaction time, but also does not require a separate cooling device. Led to develop. 2, such a scrubber is illustrated. When the exhaust gas of the ship flows into the inlet 21, seawater is injected through the first nozzle 22. The introduced exhaust gas passes through the finely divided seawater of the first nozzle 22 to come into contact with and react with the seawater discharged from the second nozzle 23 formed in the cylindrical portion of the cyclone body 20. As it passes through the seawater curtain film formed through 23), it reacts directly with seawater. Through this process, the exhaust gas is purified.

24 is a mist separator.

The present invention proposes a method of easily mounted on an existing vessel while using the cyclone scrubber (Korean Patent Application No. 10-2009-41793) of FIG. 2 proposed by the applicant of the present invention.

In detail, there are many problems in utilizing an exhaust gas purification system using a conventional scrubber in an existing vessel. First of all, conventional vessels are not equipped with a purification system for purifying exhaust gas. Ships built prior to the entry into force of the Treaty to Block Harmful Emissions did not have a system for purifying them.

In these ships, the purification system needs to be redesigned and rebuilt much from the ship's engine to the exhaust pipe. This incurs a lot of expenses and was a huge expense for the owners.

The present invention relates to an exhaust gas purification system mounted on an exhaust pipe for discharging exhaust gas discarded from a ship. The present invention provides a ship exhaust gas purification system in which a scrubber is installed and the exhaust gas can be purged and exhausted through a scrubber by controlling the flow path of the exhaust gas induction pipe.

In addition, while the exhaust gas can be discharged as it is without purification through the exhaust gas induction pipe of the present invention, in a special case, the exhaust gas purification system of the ship to pass through the scrubber to complete the exhaust gas purification treatment and exhaust can be provided. I would like to.

In addition, the present invention is to simply install the purification system in the existing ship exhaust gas ducts to reduce the space problem of the installation and the cost of the dry dock required for long-term installation work.

In addition, the present invention is to produce only the expanded stack and exhaust pipe newly, it is possible to achieve the purification of the exhaust gas by simply coupling to the existing dried ship.

Exhaust gas purification system of the ship according to the present invention, the exhaust pipe 10 for discharging the exhaust gas of the ship; An exhaust gas induction pipe 100 fastened to an exhaust port side of the exhaust pipe 10 to form an exhaust flow path and a new flow path; And a scrubber 20 for purifying the exhaust gas through the seawater fastened to the new flow path of the exhaust gas induction pipe 100, and if necessary, passes the exhaust gas through the scrubber 20 to realize purification. If unnecessary, the exhaust pipe 10 is discharged as it is.

In addition, according to the exhaust gas purification system of the present invention, the exhaust gas induction pipe 100, the flange portion 41 for fastening while communicating with the exhaust pipe 10 which is an existing flow path; A first damper 50 for communicating the exhaust pipe 10 inside the induction pipe; A three-hole pipe formed with a second damper 60 for communication with the scrubber 20 to discharge the exhaust gas to the exhaust pipe 10 through opening and closing of the flow paths of the dampers 50 and 60, or a scrubber ( 20, and control to purify and exhaust: Directional damper 70 which can control the direction of the exhaust gas before the exhaust gas passes through the dampers 50, 60 inside the exhaust gas induction pipe 100 ) To smooth the flow of exhaust gas: The dampers 50, 60, and 70 rotate the vanes 51, 61, and 71 through the motor to open the flow path.

In addition, the exhaust gas induction pipe 100 according to the exhaust gas purification system of the ship of the present invention forms a separate flange portion 80 for communication with the scrubber 20.

According to the present invention, even in the case of an old ship that is not equipped with the existing exhaust gas purification system, the scrubber and the exhaust gas induction pipe may be installed in a manner that is simply fastened to the exhaust pipe to achieve purification of the exhaust gas.

In addition, according to the present invention there is an advantage that it is possible to simply control the direction of the exhaust gas by forming a plurality of dampers inside the exhaust gas induction pipe and adjusting the angle of the blade of the damper.

In addition, according to the present invention, while the exhaust gas discharged from the conventional vessel can be discharged as it is through the conventional exhaust pipe, it is also possible to control the exhaust gas induction pipe to pass through a scrubber and exhaust the exhaust gas in a state of completion of purification. have.

1 is a view showing a general scrubber used in the prior art,
Figure 2 is a view showing a state of a previously applied scrubber,
3 is a side view of the purification system of the present invention;
4 is a plan view of the purification system of the present invention;
5 is a view showing a process of exhaust gas is discharged to the exhaust pipe in the exhaust gas induction pipe of the present invention,
6 is a view showing a state in which the exhaust gas passes through the scrubber in the exhaust gas induction pipe of the present invention,
7 is a view showing an embodiment of a scrubber used in the present invention,
8 is a view showing another embodiment of the scrubber used in the present invention.

The present invention relates to a purification system for purifying exhaust gas emitted from an existing vessel.

Therefore, the configuration of the present invention and its operation will be described in detail with reference to FIGS. 3 to 8.

As shown, the present invention includes an exhaust pipe 10 through which the exhaust gas of the ship is discharged, and an exhaust gas induction pipe 100 fastened to the exhaust port side of the exhaust pipe 10 to form an exhaust flow path and a new flow path. There is a scrubber 20 for purifying exhaust gas through seawater fastened to a new flow path of the exhaust gas induction pipe 100. Therefore, these are combined to pass the exhaust gas through the scrubber 20 when necessary to realize purification, and when not necessary, to exhaust the exhaust gas as it is.

The present invention is in a structurally simple manner. A big technical feature is that it can be easily mounted and used on a conventionally used ship. In the case of a conventional ship, the exhaust gas generated from the engine is in communication so that it can be discharged to the outside through the exhaust pipe 10 as it is. Therefore, most of the conventional ships discharge the exhaust gas without any purification action on the high seas. Nowadays, regulations on the emission of exhaust gas have been tightened, and laws around the world have been enacted to make emission below the allowable level through treaties. Ships newly manufactured to accommodate these allowances are designed and manufactured to undergo a separate purification system or purification device when exhaust gas is discharged to the exhaust pipe 10, but this is not the case in the conventional ship.

This does not mean that conventional vessels are an exception to the treaty or legislation, so in principle a new purification device must be fitted. It is for this vessel that the present invention has been invented. Exhaust gas induction pipe 100 shown in the exhaust pipe 10 for discharging the exhaust gas generated in the conventional engine as it is mounted. As shown in FIG. 4, the exhaust pipe 10 protruding to the top of the stack 1 is in communication with the engine. And it is to install the exhaust gas induction pipe 100 of the present invention to the end portion of the outlet of the exhaust pipe (10). In the case of the exhaust pipe 10 of the ship that is already used to dry, it is to cut a portion of the end and flange coupling through the flange portion 41 of the exhaust gas induction pipe 100 of the present invention. The exhaust gas induction pipe 100 is formed with three holes. One hole is coupled to the flange and the flange of the exhaust pipe 10, the other hole is also fastened to the exhaust pipe 10 has a structure in communication so that the exhaust pipe 10 can discharge the exhaust gas as in the conventional manner. The scrubber 20 is attached to the exhaust hole on the other side which is bent and protruded to one side. In the case of the scrubber 20, it is possible to manufacture in various forms as shown in Figures 2, 7 and 8 shown as a device for reducing the pollution by spraying seawater to the exhaust gas.

Referring to the manner in which the system of the present invention operates, the exhaust gas generated in the engine is passed through the exhaust pipe 10 of the lower, as shown in Figure 5, as shown in the conventional manner, and the flue gas induction pipe connected to the flange ( Pass through 100, one way is discharged as it is through the exhaust pipe 10 of the end. And the second method is a way to pass through the scrubber 20, one side end of the exhaust gas induction pipe 100 of the present invention, the scrubber 20 is shown is fastened through the scrubber 20 and the exhaust gas to be discharged To help. When it is necessary to satisfy the allowance of the exhaust gas pollution degree, the flow of the exhaust gas is controlled inside the exhaust gas induction pipe 100 to pass through the scrubber 20, and the exhaust gas is polluted and then exhausted. will be. The system of the present invention is mounted on a conventional dried ship to allow the exhaust gas to be discharged as it is, while purifying the exhaust gas when necessary to reduce the pollution degree and discharge.

Then, a detailed description of the exhaust gas induction pipe 100 according to the present invention. 3 to 6, the exhaust gas induction pipe 100 has a flange portion 41 for fastening while communicating with the exhaust pipe 10, which is an existing flow path, the agent for communication of the exhaust pipe 10 inside the induction pipe 10. There is a first damper 50, there is a second damper 60 for communication with the scrubber 20. Therefore, the exhaust gas is discharged through the three holes formed in the exhaust gas induction pipe. The exhaust gas is discharged to the exhaust pipe 10 through the opening and closing of the flow paths of the dampers 50 and 60, or it is controlled so that the exhaust gas can be purified and exhausted through the scrubber 20.

As shown, a plurality of dampers (50, 60) is mounted inside the exhaust gas induction pipe (100). The first damper 50 is a damper in communication with the exhaust pipe 10, and the second damper 60 is a damper in communication with the scrubber 20. When the first damper 50 is blocked, the exhaust gas that has entered the exhaust pipe 10 is moved to the scrubber 20 through the second damper 60 to be purged and discharged. On the contrary, when the second damper 60 is blocked, the exhaust gas that has entered the exhaust pipe 10 passes through the exhaust gas induction pipe 100 and immediately passes through the first damper 50 and is discharged as it is to the exhaust pipe 10. In the present invention, it is to control the flow of the exhaust gas through the dampers (50, 60, 70) mounted on the inside of the exhaust gas induction pipe 100, and to control whether or not to go through the purification operation as it is.

In order to explain this more effectively, FIGS. 5 and 6 are shown. Inside the exhaust gas induction pipe 100, a direction damper 70 for controlling the direction of the exhaust gas before the exhaust gas passes through the dampers 50 and 60 is provided to smooth the flow of the exhaust gas. It is preferable.

That is, the first damper 50 is a damper that blocks and opens communication with the exhaust pipe 10, and the second damper 60 is a damper that blocks and opens communication with the scrubber 20. Inflow control of the exhaust gas can be controlled only by the action of the first damper 50 and the second damper 60. However, if the directional damper 70 is installed inside the exhaust gas induction pipe 100 before passing through the first damper 50 and the second damper 60, it is easier to set the direction of the exhaust gas. The direction vampper 70 can adjust the flow direction of the exhaust gas flowing inside the exhaust pipe 10 through the wing 71.

When the exhaust gas is discharged to the exhaust pipe 10 as it is, if the exhaust gas is ejected toward the first damper 50 by adjusting the angle of the blade 71 of the directional damper 70, the exhaust gas is an exhaust gas induction pipe. It is direct from the inside of the 100 and can be discharged directly to the exhaust pipe 10. And when it is going to discharge toward the scrubber 20, the angle of the blade 71 of the directional damper 70 is adjusted, and exhaust gas is discharged toward the 2nd damper 60, and it is easy inside the scrubber 20. Inflow.

It is preferable that the dampers 50, 60, 70 responsible for the change of direction and the communication and blocking of the exhaust gas rotate the vanes 51, 61, 71 through a motor to open the flow path. As in the general form of the dampers 50, 60, 70, and has a plurality of wings (51, 61, 71) on the inside and the wings (51, 61, 71) rotates through the motor to open and block the flow path It works. As shown in FIGS. 5 and 6, the rotational force of the motor rotates the adjusters 52, 62, 72 and the adjusters 52, 62, 72 are fastened to the side ends of the vanes 51, 61, 71. The blades 51, 61, and 71 are rotated according to the rotating angle of rotation. If it is to be opened completely, it rotates to the same upright state according to the direction of the flow of waste gas, and passes waste gas between the blades 51, 61, 71. On the other hand, if the flow of the exhaust gas is to be blocked, the flow of the exhaust gas is blocked by the rotation (block) between the wings so as to block the flow of the exhaust gas through the wings 51, 61, and 71.

Of course, if you want to change the direction, turn the wings 51, 61, 71 so as to have an angle inclined toward the required direction to change the direction of the exhaust gas.

In the case of the present invention, it is a purification system that can be fastened to the existing vessel. Therefore, it is preferable that the exhaust gas induction pipe 100 forms a separate flange portion 80 for communication with the scrubber 20. As shown by a dotted line in FIG. 3, a separate flange portion 80 is formed in the exhaust gas induction pipe 100 so that the fastening with the scrubber 20 can be assembled through the flange coupling. The scrubber 20 to be upright to the top of the stack (1) is easily fastened with the exhaust gas induction pipe 100 through the flange portion 80, so as to be dismantled and repaired if necessary. Reference numeral 2 in FIG. 4 is an auxiliary pipe.

7 and 8 illustrated in detail. 7 shows a scrubber of the most basic form. All are manufactured in the form of assembly and disassembly through flange coupling. Reference numeral 23 denotes a nozzle for injecting seawater and 24 denotes a mist separation device. Details of this scrubber are described in detail in "cyclone scrubber" (Korean Patent Application No. 10-2009-41793), and thus the detailed description will be omitted. However, the present invention can be easily assembled through a flange bond. It can be said. FIG. 8 illustrates a form in which a scrubber is implemented in more singular numbers than in FIG. 7. Various types of scrubbers may be installed depending on the space in which the stack or the exhaust pipe is installed depending on the vessel. Multi-stage scrubbers, which can form more nozzles and increase the effectiveness of the purification process, can be implemented as many as possible through the flange combination.

10; Exhaust pipe 20; Scrubber
50; First damper 60; 2nd damper
70; Directional dampers 51, 61, 71; wing
80; Flange portion 100; Exhaust gas induction pipe

Claims (5)

An exhaust pipe 10 through which the exhaust gas of the ship is discharged;
An exhaust gas induction pipe 100 fastened to an exhaust port side of the exhaust pipe 10 to form an exhaust flow path and a new flow path; And
And a scrubber 20 for purifying the exhaust gas through the seawater fastened to the new flow path of the exhaust gas induction pipe 100, if necessary, to pass the exhaust gas through the scrubber 20 to realize the purification, unnecessary The exhaust gas purification system of the ship, characterized in that to discharge as it is to the exhaust pipe (10).
The method of claim 1,
Exhaust gas induction pipe 100,
A flange portion 41 for fastening while communicating with an existing euro exhaust pipe 10;
A first damper 50 for communicating the exhaust pipe 10 inside the induction pipe;
A three-hole pipe formed with a second damper 60 for communication with the scrubber 20 to discharge the exhaust gas to the exhaust pipe 10 through opening and closing of the flow paths of the dampers 50 and 60, or a scrubber ( 20) A ship's exhaust gas purification system characterized in that the control to be purified and exhaust through.
The method of claim 2,
Inside the exhaust gas induction pipe 100,
The exhaust gas purification system of a ship, characterized in that to facilitate the flow of the exhaust gas by installing a direction damper 70 that can control the direction of the exhaust gas before the exhaust gas passes through the dampers (50, 60).
The method of claim 2 or 3,
The damper (50, 60, 70), the exhaust gas purification system of a ship, characterized in that to open the flow path by rotating the blades (51, 61, 71) through a motor.
The method of claim 1,
The exhaust gas induction pipe 100,
The exhaust gas purification system of the ship, characterized in that for forming a separate flange portion (80) for communication with the scrubber (20).
KR1020100077720A 2010-08-12 2010-08-12 The purify system of exhaust gas in ship KR20120015547A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170043034A (en) * 2015-10-12 2017-04-20 대우조선해양 주식회사 Ship funnel
KR20190000276A (en) * 2017-06-22 2019-01-02 현대중공업 주식회사 Scrubber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170043034A (en) * 2015-10-12 2017-04-20 대우조선해양 주식회사 Ship funnel
KR20190000276A (en) * 2017-06-22 2019-01-02 현대중공업 주식회사 Scrubber

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