KR20210036180A - Integrated processing system for VOC in vessel - Google Patents

Abstract

According to one embodiment of the present invention, provided is an integrated processing system for a volatile organic compound (VOC) in a vessel, which can comprise: a cleaning water supply pipe which supplies cleaning water; a first scrubber which sprays cleaning water to the VOC generated in a combustion engine mounted on the ship and makes the water come in contact with gas; a cleaning water discharge pipe which discharges the cleaning water in the first scrubber; a filter unit connected to the cleaning water discharge pipe to separate solid particles included in the cleaning water; a cleaning water circulation pipe which circulates the cleaning water, from which the solid particles are separated by the filter unit, by the first scrubber; a second scrubber which sprays cleaning water to the VOC supplied from a fuel tank storing crude oil, and makes the water come in contact with the gas; a VOC moving pipe of which one end is connected to the second scrubber and the other end is connected to one or more of the fuel tank and the combustion engine, and which supplies the VOC discharged from the second scrubber to one or more of the fuel tank and the combustion engine; a compressor installed on the VOC moving pipe to compress the VOC; and a heat exchanger installed on the cleaning water supply pipe to be passed through by the cleaning water supply pipe and the VOC moving pipe. The cleaning water circulation pipe and the VOC moving pipe can be selectively opened. The present invention aims to provide the integrated processing system for the VOC in the vessel, which is able to reduce the cost for installing and maintaining the system.

Description

Integrated processing system for VOC in vessel}

The present invention relates to an integrated oil vapor treatment system in a ship, and more particularly, an integrated treatment of oil vapor in a ship capable of treating both washing water discharged after contact with exhaust gas and gas-liquid from a scrubber and oil vapor generated from a fuel tank in which crude oil is stored. It's about the system.

In general, various engines installed on ships generate power by burning fuel, and exhaust gases generated in the process of combustion of fuel are harmful substances such as nitrogen oxides (NOx), sulfur oxides (SOx), and fine dust (PM). Contains. As air pollution increases, regulations on various harmful substances contained in exhaust gases are becoming strict. In particular, sulfur oxides in exhaust gases are subject to emission regulations from the International Maritime Organization (IMO), the United Nations oxidation agency. It is one of the representative air pollutants that are present. In fact, from 2020, in addition to the Emission Control Area (ECA), the sulfur content of the fuel will be strengthened to 0.5% in the global area. Accordingly, various apparatuses and methods for treating exhaust gas from ships have been introduced. In the case of sulfur oxides, it is common to remove them using a wet scrubber, and the washing water discharged after gas-liquid contact with exhaust gas in the scrubber is discharged to the sea through a separate water treatment process or circulated to the scrubber.

On the other hand, when crude oil is loaded into or unloaded into a fuel tank, or during transportation of crude oil loaded into a fuel tank, the crude oil is vaporized for various reasons such as temperature rise and sloshing, resulting in a large amount of oil vapor (VOC, Volatile). Organic Compounds) are produced. Since the generated oil vapor increases the pressure inside the fuel tank and continuously causes vaporization of crude oil, a separate treatment is required. In particular, since oil vapor may have toxic or odor and contain flammable components, it may cause environmental pollution if it is released into the atmosphere as it is. Therefore, an oil vapor treatment system is installed on the ship so that the impurities contained in the oil vapor can be removed and utilized. In general, the oil vapor treatment system includes a scrubber that removes impurities contained in the oil vapor, a compressor that compresses the oil vapor from which the impurities have been removed at high pressure, a condenser that heats the compressed oil vapor with seawater to condense moisture contained in the oil vapor, and moisture. It consists of a separator that separates oil and vapor.

However, since conventional ships have a system for treating washing water discharged from a scrubber and a system for treating oil vapor separately, the cost for installing and maintaining each system is increased, as well as a wide installation for system arrangement. There is a problem in that space is required and thus the utilization of space in the ship is reduced.

Accordingly, there is a need for an integrated treatment system having a structure capable of treating both the washing water discharged from the scrubber and the oil vapor generated from the fuel tank.

Korean Patent Registration No. 10-1804314 (November 28, 2017)

An object of the present invention is to provide an integrated oil vapor treatment system in a ship capable of treating both washing water discharged after contact with exhaust gas and gas-liquid from a scrubber and oil vapor generated from a fuel tank in which crude oil is stored.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above technical problem, an integrated treatment system for oil vapor in a ship according to an embodiment of the present invention includes a washing water supply pipe for supplying washing water, and the washing water is injected into exhaust gas supplied from a combustion engine mounted on the ship. A first scrubber in contact with gas-liquid, a washing water discharge pipe for discharging the washing water inside the first scrubber, a filter unit connected on the washing water discharge pipe to separate solid particles contained in the washing water, and the filter A washing water circulation pipe for circulating the washing water from which the solid particles are separated from the unit to the first scrubber, a second scrubber for injecting the washing water into oil vapor supplied from the fuel tank in which crude oil is stored to contact the gas-liquid, and one end of the An oil vapor transfer pipe connected to a second scrubber and the other end connected to at least one of the fuel tank or the combustion engine to supply oil vapor discharged from the second scrubber to at least one of the fuel tank or the combustion engine, and the oil vapor transfer pipe A compressor that is installed on and compresses the oil vapor, and a heat exchanger installed on the washing water circulation pipe and passed through each of the washing water supply pipe and the oil vapor transfer pipe, wherein the washing water circulation pipe and the oil vapor transfer pipe are selectively opened. .

The washing water supply pipe includes a first washing water supply pipe supplying the washing water to the first scrubber, and a second washing water supply pipe connected in parallel to the first washing water supply pipe, and supplying the washing water to the second scrubber. A water supply pipe and a third washing water supply pipe connected in parallel to the first washing water supply pipe and passing through the heat exchanger may be included.

The oil vapor passing through the condenser exchanges heat with the washing water flowing through the third washing water supply pipe in the heat exchanger to condense moisture contained in the oil vapor. It may further include a gas-liquid separator installed on the oil vapor transfer pipe to remove condensed water contained in the oil vapor.

The second scrubber may be disposed inside the first scrubber.

The integrated oil vapor treatment system in the ship further comprises a washing water circulation tank connected to the washing water discharge pipe in front of the filter unit to temporarily store the washing water discharged from the first scrubber, wherein the washing water circulation pipe And a first washing water circulation pipe connecting between the filter unit and the washing water circulation tank, and a second washing water circulation pipe connecting the washing water circulation pipe and the first scrubber and in which the heat exchanger is installed.

The integrated oil vapor treatment system in the ship further comprises a neutralizing agent injection unit connected to the washing water discharge pipe between the washing water circulation tank and the filter unit, and generating the solid particles by injecting a neutralizing agent into the washing water. I can.

According to the present invention, since a conventional washing water treatment system and an oil vapor treatment system are combined into one and share a scrubber and a heat exchanger, cost for installation and maintenance of the system can be reduced, and space utilization within a ship can be increased.

1 is a view schematically showing an integrated processing system for oil vapor in a ship according to an embodiment of the present invention.
2 and 3 are operation diagrams for explaining the operation of the integrated oil vapor processing system in the ship of FIG. 1.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same elements throughout the specification.

Hereinafter, with reference to Figs. 1 to 3, a detailed description will be given of an integrated processing system for oil vapor in a ship according to an embodiment of the present invention.

In the integrated steam treatment system in a ship according to the present invention, since the conventional washing water treatment system and the steam treatment system are combined into one and share a scrubber and a heat exchanger, the cost for installation and maintenance of the system can be reduced, and space utilization in the ship is also possible. There are also features that can be increased.

Hereinafter, with reference to FIG. 1, it will be described in detail with respect to the integrated oil vapor processing system 1 in the ship.

1 is a diagram schematically showing an integrated oil vapor treatment system in a ship according to an embodiment of the present invention.

The integrated steam treatment system 1 in a ship according to the present invention includes a washing water supply pipe 10, a first scrubber 20, a washing water discharge pipe 30, a filter part 40, and a washing water circulation pipe 50. ), a second scrubber 60, an oil vapor transfer pipe 70, a compressor 80, and a heat exchanger 90.

The washing water supply pipe 10 is a pipe that supplies at least one washing water of seawater or fresh water or a mixture of seawater and fresh water, and one end thereof is a sea-chest (not shown) and a fresh water storage tank (not shown). ) Is connected to at least one of, and the other end is branched and connected to the first scrubber 20 and the second scrubber 60, which will be described later. That is, the washing water supply pipe 10 may selectively receive seawater and fresh water and supply them to the first scrubber 20 and the second scrubber 60. More specifically, the washing water supply pipe 10 includes a first washing water supply pipe 11 supplying washing water to the first scrubber 20, and a second washing water supplying washing water to the second scrubber 60. It may include a supply pipe (12).

The first scrubber 20 is to inject washing water into exhaust gas supplied from a combustion engine (not shown) mounted on the ship to make gas-liquid contact, and the exhaust gas supply pipe 21 and the first washing water supply pipe 11 , And the exhaust pipe 22 are respectively connected.

The exhaust gas supply pipe 21 is a pipe that supplies the exhaust gas generated by the combustion engine to the first scrubber 20, and is directly connected to the exhaust port of the combustion engine to supply high-temperature exhaust gas or pass through various heat exchangers to most of the exhaust heat. You can use and supply the remaining waste gas. The combustion engine is a device that generates various types of power required for a ship by burning fuel, and may be formed of, for example, a main engine, a generator engine, or the like. The exhaust gas supply pipe 21 may be connected to an exhaust port of a plurality of combustion engines, respectively, and the plurality of combustion engines may be selectively operated. Since the combustion engine generally generates power by burning fossil fuels, it generates exhaust gas according to the combustion of fossil fuels. The generated exhaust gas contains a large amount of nitrogen oxides, sulfur oxides, organic substances, fine dust, etc., and is supplied to the first scrubber 20 through an exhaust gas supply pipe 21 connected to one side of the combustion engine.

The first scrubber 20 is provided with an injection nozzle (not shown) for injecting washing water in the form of fine particles, and the injection nozzles may be branched into a plurality and disposed along the flow direction of the exhaust gas. By arranging a plurality of injection nozzles inside the first scrubber 20, the contact area, contact time, and number of contacts between the exhaust gas and the washing water are increased, so that nitrogen oxides, sulfur oxides, organic substances, fine dust, etc. included in the exhaust gas are increased. Contaminants can be effectively removed. Exhaust gas from which pollutants such as nitrogen oxides, sulfur oxides, organic substances, and fine dust have been removed may be discharged to the outside through an exhaust pipe 22 provided above the first scrubber 20. The exhaust gas discharged through the exhaust pipe 22 is in a state in which pollutants have been removed to a level suitable for the exhaust standard, and thus can be discharged into the atmosphere as it is. The washing water in contact with the exhaust gas and gas-liquid inside the first scrubber 20 is discharged through the washing water discharge pipe 30.

The washing water discharge pipe 30 is a pipe for discharging the washing water inside the first scrubber 20, and one end is connected to the lower portion of the first scrubber 20 and the other end extends to the sea. That is, the washing water discharged through the washing water discharge pipe 30 is discharged to the sea. At least one pump (not shown) for facilitating the movement of the washing water and at least one valve (not shown) for controlling the movement of the washing water may be installed on the washing water discharge pipe 30. In addition, on the washing water discharge pipe 30, a washing water circulation tank 31 and a filter unit 40, which will be described later, may be sequentially connected.

The washing water circulation tank 31 is disposed under the first scrubber 20 to temporarily store the washing water discharged from the first scrubber 20, and in the filter unit 40 to be described later through the washing water discharge pipe 30. It can serve as a kind of buffer tank so that a certain amount of washing water can be supplied. In addition, the washing water circulation tank 31 may serve to temporarily store the washing water circulated in the filter unit 40 and circulate it to the first scrubber 20.

The filter unit 40 is connected to the washing water discharge pipe 30 at the rear end of the washing water circulation tank 31 to separate solid particles contained in the washing water. In this case, the solid particles may be generated by the neutralizing agent injected by the neutralizing agent injection unit 32 installed on the washing water discharge pipe 30 between the washing water circulation tank 31 and the filter unit 40. In other words, the neutralizing agent injection unit 32 injects a neutralizing agent into the washing water, and the neutralizing agent injected into the washing water reacts with pollutants of exhaust gas dissolved in the washing water to generate solid particles such as sulfate and nitrate. That is, the washing water temporarily stored in the washing water circulation tank 31 is in a state in which pollutants are dissolved, and the washing water supplied from the washing water circulation tank 31 to the filter unit 40 reacts with the neutralizing agent and It becomes a state containing particles. The filter unit 40 may be formed of a filter made of at least one porous mesh to separate solid particles included in the washing water. For example, the filter unit 40 may be formed by overlapping a plurality of porous mesh bodies in a line along the flow direction of the washing water, and each of the plurality of porous mesh bodies may have different pore sizes. In other words, the size of the pores gradually decreases from the front end of the filter unit 40 through which the washing water is introduced to the rear end of the filter unit 40 through which the washing water is discharged, so that the solid particles can be effectively separated. However, it is not limited that the pores of each porous mesh are formed differently from each other, and for example, the plurality of porous meshes may have the same pore size. When all the pores of the plurality of porous meshes are formed to have the same size, the solid particles can be effectively separated by arranging the pores so as to deviate from each other. Some of the washing water from which the solid particles are separated from the filter unit 40 is discharged to the sea through the washing water discharge pipe 30, and the remaining part may be circulated to the first scrubber 20 through the washing water circulation pipe 50. have.

The washing water circulation pipe 50 is a pipe for circulating the washing water from which the solid particles are separated from the filter unit 40 to the first scrubber 20, and at least one pump (not shown) is installed to prevent the movement of the washing water. You can do it smoothly. The washing water circulation pipe 50 includes a first washing water circulation pipe 51 and a second washing water circulation pipe 52. The first washing water circulation pipe 51 is connected between the filter unit 40 and the washing water circulation tank 31, and the second washing water circulation pipe 52 is the washing water circulation tank 31 and the first scrubber 20. Connect between. At least one valve is installed on each of the first washing water circulation pipe 51 and the second washing water circulation pipe 52 to control the movement of the washing water. A heat exchanger 90 to be described later may be installed in the washing water circulation pipe 50.

Meanwhile, the oil vapor supplied from a fuel tank (not shown) in which crude oil is stored is supplied to the second scrubber 60. The second scrubber 60 sprays washing water into the oil vapor to contact the gas-liquid to remove impurities contained in the oil vapor, and may be disposed inside the first scrubber 20 as shown. However, the second scrubber 60 is not limited to being disposed inside the first scrubber 20, and for example, the second scrubber 60 may be disposed outside the first scrubber 20. The second scrubber 60 is connected to an oil vapor supply pipe 61, a second washing water supply pipe 12, a drain pipe 62, and an oil vapor transfer pipe 70, respectively.

The oil vapor supply pipe 61 is a pipe that supplies oil vapor generated from the fuel tank in which crude oil is stored to the second scrubber 60, and one end is connected to the fuel tank and the other end is connected to the lower portion of the second scrubber 60. The second washing water supply pipe 12 is connected in parallel with the first washing water supply pipe 11 to supply washing water to the second scrubber 60 and is connected to the upper portion of the second scrubber 60. The second scrubber 60 is provided with a spray nozzle (not shown) for spraying the washing water in the form of fine particles therein, and the spray nozzles may be branched into a plurality and disposed along the flow direction of the exhaust gas. Since a plurality of spray nozzles are disposed inside the second scrubber 60, impurities included in the oil vapor can be effectively removed. Washing water containing impurities by contacting oil vapor with gas-liquid in the second scrubber 60 is discharged through the drain pipe 62 to undergo a series of treatment processes, and the oil vapor from which the impurities have been removed contains moisture and the oil vapor transfer pipe 70 Is discharged through.

The oil vapor transfer pipe 70 has one end connected to the upper portion of the second scrubber 60 and the other end connected to at least one of a fuel tank or a combustion engine EG, so that the oil vapor discharged from the second scrubber 60 is converted into a fuel tank or a combustion engine. Supply with at least one of (EG). Hereinafter, a structure in which the other end of the oil vapor transfer pipe 70 is connected to the combustion engine EG and the oil vapor discharged from the second scrubber 60 is supplied to the combustion engine EG will be described in more detail. At least one compressor 80 is installed on the vapor transfer pipe 70.

The compressor 80 compresses the oil vapor from which the impurities have been removed from the second scrubber 60 at high pressure. For example, the pressure is increased by increasing the rotational speed of blades having different sizes for each stage. The height may be formed by a centrifugal type compressor, or may be formed by a reciprocating compressor using a cylinder. However, this is an example, and it is not necessary to limit the formation method of the compressor 80 as described above, and various types of compressors may be applied by selectively and in combination with various structures within the limit of compressing oil vapor. have. The oil vapor compressed by the compressor 80 moves to the heat exchanger 90 along the vapor transfer pipe 70.

The heat exchanger 90 is installed on the second washing water circulation pipe 52, and the washing water supply pipe 10 and the oil vapor transfer pipe 70 may each pass through. In this case, the third washing water supply pipe 13 connected in parallel with the first washing water supply pipe 11 may pass through the heat exchanger 90. The heat exchanger (90) heats the washing water flowing through the second washing water circulation pipe (52) and washing water flowing through the third washing water supply pipe (13), or 3 The washing water flowing through the washing water supply pipe 13 is heat-exchanged. For example, when the washing water flowing through the second washing water circulation pipe 52 and the washing water flowing through the third washing water supply pipe 13 exchange heat in the heat exchanger 90, the second washing water circulation pipe 52 The washing water flowing through is cooled, and the temperature of the washing water flowing through the third washing water supply pipe 13 may increase. The washing water circulating through the second washing water circulation pipe 52 to the first scrubber 20 is already in contact with the high-temperature exhaust gas and gas-liquid in the first scrubber 20 and the temperature is increased, so it is necessary to lower the temperature. . The heat exchanger 90 may lower the temperature of the washing water moving through the second washing water circulation pipe 52 and supply it to the first scrubber 20. In addition, when the oil vapor flowing through the oil vapor transfer pipe 70 and the washing water flowing through the third washing water supply pipe 13 exchange heat in the heat exchanger 90, the oil vapor flowing through the oil vapor transfer pipe 70 is cooled to the oil vapor. The included moisture is condensed, and the temperature of the washing water flowing through the third washing water supply pipe 13 may increase. As described above, since the oil vapor discharged from the second scrubber 60 contains moisture by contacting the washing water with gas-liquid, it is compressed at high pressure in the compressor 80 and then heat exchanged with the washing water in the heat exchanger 90. When cooled, moisture contained in the oil vapor may condense. The washing water passing through the heat exchanger 90 and flowing through the third washing water supply pipe 13 having an increased temperature may be supplied to a separate need and used.

The washing water circulation pipe 50 and the oil vapor transfer pipe 70 may be selectively opened. For example, when a ship is anchored and loaded or unloaded, the amount of oil vapor generated increases, so that the oil vapor transfer pipe 70 may be opened. When the ship is moored, the operation of the main engine with a large capacity is stopped and only the generator engine with a small capacity is operated.Therefore, the amount of exhaust gas processed by the first scrubber 20 is small and the cleaning supplied to the first scrubber 20 The amount of number is also small. Therefore, since the amount of washing water discharged from the first scrubber 20 is also small, the washing water circulation pipe 50 is closed. Conversely, when the ship is sailing, since the main engine is operated and the amount of washing water discharged from the first scrubber 20 is large, the washing water circulation pipe 50 may be opened.

A gas-liquid separator 71 is installed on the oil vapor transfer pipe 70 at the rear end of the heat exchanger 90. The gas-liquid separator 71 separates condensed water contained in the oil vapor, and may serve as a kind of buffer tank so that a certain amount of oil vapor can be supplied to the combustion engine EG. For example, the gas-liquid separator 71 may be formed by a gravity separator, so that the liquid condensed water may be located at the bottom and the gaseous oil vapor may be located at the top. When the oil vapor containing condensed water flows along the vapor transfer pipe 70 and is supplied to the combustion engine EG, problems such as piping erosion and generation of slugs may occur. Since the gas-liquid separator 71 separates oil vapor and condensed water, problems such as pipe erosion and slug generation can be prevented. The gas-liquid separator 71 has a separate discharge pipe (not shown) connected to the lower part, and an oil vapor transfer pipe 70 connected to the upper part to supply oil vapor from which condensed water is separated to the combustion engine EG.

Hereinafter, the operation of the integrated oil vapor processing system 1 in a ship will be described in detail with reference to FIGS. 2 and 3.

2 and 3 are operation diagrams for explaining the operation of the integrated oil vapor processing system in the ship of FIG. 1.

First, referring to FIG. 2, when the ship is sailing, the washing water circulation pipe 50 is opened, and the vapor transfer pipe 70 is closed.

When a ship is sailing, a large-capacity main engine is operated to generate a large amount of exhaust gas. The exhaust gas generated by the main engine is supplied to the first scrubber 20 through the exhaust gas supply pipe 21, and at the same time, the washing water is also supplied to the first scrubber 20 through the first washing water supply pipe 11. At this time, the second washing water supply pipe 12 is closed and the third washing water supply pipe 13 is opened to supply washing water to the heat exchanger 90. The exhaust gas supplied to the first scrubber 20 and the washing water are in gas-liquid contact, so that pollutants such as nitrogen oxides, sulfur oxides, organic substances, and fine dust contained in the exhaust gas may be removed. The exhaust gas from which the pollutants are removed is discharged to the outside through the exhaust pipe 22, and the washing water in which the pollutants are dissolved is discharged through the washing water discharge pipe 30.

The washing water discharged through the washing water discharge pipe 30 is supplied to the filter unit 40 via the washing water circulation tank 31. At this time, since the neutralizing agent injection unit 32 injects the neutralizing agent into the washing water supplied to the filter unit 40, solid particles may be generated by reacting with the pollutants dissolved in the washing water and the neutralizing agent. Washing water containing solid particles is supplied to the filter unit 40 to remove the solid particles. As shown in FIG. 2, in the case of a closed loop method in which the washing water circulates, the washing water from which the solid particles are removed is removed through the first washing water circulation pipe 51 and the second washing water circulation pipe 52. 1 It is circulated to the scrubber 20. Since the heat exchanger 90 is installed on the second washing water circulation pipe 52 connecting between the washing water circulation tank 31 and the first scrubber 20, the washing water flows through the third washing water supply pipe 13. After being cooled to a certain temperature by exchanging heat with the washing water, it may be circulated to the first scrubber 20.

On the other hand, in the case of an open loop method in which the washing water is discharged to the sea, the washing water circulation pipe 50 is closed and the washing water discharge pipe 30 at the rear end of the filter unit 40 is opened.

Conversely, referring to FIG. 3, when the vessel is anchored and being loaded or unloaded, the vapor transfer pipe 70 is opened and the washing water circulation pipe 50 is closed.

When a ship is loading or unloading, a large amount of oil vapor is generated in the fuel tank. The oil vapor generated in the fuel tank is supplied to the second scrubber 60 through the oil vapor supply pipe 61, and at the same time, the washing water is also supplied to the second scrubber 60 through the second washing water supply pipe 12. At this time, the first washing water supply pipe 11 is closed, and the third washing water supply pipe 13 is opened to supply washing water to the heat exchanger 90. The oil vapor supplied to the second scrubber 60 and the washing water are in gas-liquid contact, so that impurities contained in the oil vapor may be removed. The washing water in which the impurities are dissolved is discharged through the drain pipe 62 and undergoes a series of treatment processes, and the oil vapor from which the impurities have been removed is discharged through the vapor transfer pipe 70.

The oil vapor discharged through the oil vapor transfer pipe 70 is compressed at high pressure in the compressor 80, and the water contained in the oil vapor is condensed by heat exchange with the washing water flowing through the third washing water supply pipe 13 in the heat exchanger 90. do. The oil vapor cooled in the heat exchanger 90 and condensed moisture passes through the gas-liquid separator 71 to remove condensed water, and may be supplied to the combustion engine EG while the condensed water is removed to be used as fuel. The condensed water separated from the oil vapor in the gas-liquid separator 71 may be discharged through a discharge pipe.

Embodiments of the present invention have been described above with reference to the accompanying drawings, but those of ordinary skill in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features. You will be able to understand. Therefore, it should be understood that the embodiments described above are illustrative and non-limiting in all respects.

1: Integrated oil vapor treatment system in ships
10: washing water supply pipe 11: first washing water supply pipe
12: second washing water supply pipe 13: third washing water supply pipe
20: first scrubber 21: exhaust gas supply pipe
22: exhaust pipe 30: washing water discharge pipe
31: washing water circulation tank 32: neutralizer injection unit
40: filter unit 50: washing water circulation pipe
51: first washing water circulation pipe 52: second washing water circulation pipe
60: second scrubber 61: oil vapor supply pipe
62: drain pipe 70: vapor transfer pipe
71: gas-liquid separator 80: compressor
90: heat exchanger
EG: combustion engine

Claims (6)

A washing water supply pipe supplying washing water;
A first scrubber for injecting the washing water into exhaust gas supplied from a combustion engine mounted on a ship to make gas-liquid contact;
A washing water discharge pipe for discharging the washing water inside the first scrubber;
A filter unit connected to the washing water discharge pipe to separate solid particles contained in the washing water;
A washing water circulation pipe for circulating the washing water from which the solid particles are separated from the filter unit to the first scrubber;
A second scrubber for injecting the washing water into the oil vapor supplied from the fuel tank in which the crude oil is stored to make gas-liquid contact;
An oil vapor transfer pipe having one end connected to the second scrubber and the other end connected to at least one of the fuel tank or the combustion engine, and supplying the oil vapor discharged from the second scrubber to at least one of the fuel tank or the combustion engine;
A compressor installed on the oil vapor transfer pipe to compress oil vapor, and
A heat exchanger installed on the washing water circulation pipe and passing through each of the washing water supply pipe and the oil vapor transfer pipe,
The washing water circulation pipe and the oil vapor transfer pipe are integrated oil vapor treatment system in a ship that is selectively opened. The method of claim 1, wherein the washing water supply pipe,
A first washing water supply pipe supplying the washing water to the first scrubber,
A second washing water supply pipe connected in parallel to the first washing water supply pipe and supplying the washing water to the second scrubber, and
Integrated treatment system of oil vapor in a ship comprising a third washing water supply pipe connected in parallel to the first washing water supply pipe and passing through the heat exchanger. The method of claim 2,
The oil vapor passing through the condenser exchanges heat with the washing water flowing through the third washing water supply pipe in the heat exchanger to condense moisture contained in the oil vapor,
An integrated oil vapor treatment system in a ship further comprising a gas-liquid separator installed on the vapor transfer pipe at a rear end of the heat exchanger to remove condensed water contained in the vapor. The method of claim 2,
The second scrubber is an integrated oil vapor treatment system in a ship that is disposed inside the first scrubber. The method of claim 2,
Further comprising a washing water circulation tank for temporarily storing the washing water discharged from the first scrubber by being connected to the washing water discharge pipe in front of the filter unit,
The washing water circulation pipe,
A first washing water circulation pipe connecting between the filter unit and the washing water circulation tank,
An integrated oil vapor treatment system in a ship comprising a second washing water circulation pipe connected between the washing water circulation pipe and the first scrubber and in which the heat exchanger is installed. The method of claim 5,
An integrated treatment system for ship oil vapor further comprising a neutralizing agent injection unit connected to the washing water discharge pipe between the washing water circulation tank and the filter unit, and generating the solid particles by injecting a neutralizing agent into the washing water.

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