KR102514085B1 - Ship applied with air lubircation system and its power generating apparatus using seawater - Google Patents

Abstract

The present invention relates to a ship to which an air lubrication system is applied and a power generation device using seawater of the ship, comprising: a through-pipe portion formed through a lower portion of a hull so that seawater flows into the ship; and a turbine unit installed on the through pipe to generate electric energy, wherein the turbine unit is configured to generate power regardless of a flow direction of seawater flowing into the through pipe, in the longitudinal direction of the through pipe. It includes a vertical shaft that is installed perpendicular to and rotates in both directions.

Description

Ship with air lubrication system and power generation device using seawater of the ship

The present invention relates to a ship to which an air lubrication system is applied, and more particularly, to a ship to which an air lubrication system capable of reducing frictional resistance of a ship is reduced by injecting compressed air on the bottom surface of the hull, and seawater of the ship to which an air lubrication system is applied. It is about the generator used.

In general, a ship moves forward using a flow of fluid generated when a propeller attached to the rear of a hull rotates, and drives an engine to have a constant speed by rotating the propeller.

In accordance with the recent trend of strengthening environmental regulations around the world, diesel engine ships that emit a lot of environmental pollutants such as nitrogen oxides and fine dust emit sulfur oxides or nitrogen oxides such as liquefied natural gas (LNG). of pollutants are being replaced by eco-friendly fuel ships.

In particular, in order to satisfy the needs of global shipping companies for eco-friendly high efficiency, eco-friendly power production technology that can generate electricity on its own or fuel-saving technology that can reduce fuel consumption by reducing fuel consumed during ship propulsion, etc. Research and development are actively progressing.

As an example of a fuel saving technology for reducing fuel costs during ship operation, fuel saving that improves propulsion efficiency and simultaneously saves fuel by improving the shape of the tail, propeller, or rudder of the ship or by installing separate appendages. Energy Saving Devices (ESDs) are receiving great attention.

On the other hand, frictional resistance acts between the hull and the seawater during ship operation, and the larger the vessel, the larger the area in contact with the seawater, so the propulsive force can be greatly reduced, resulting in an increase in fuel cost. do.

Therefore, various efforts have been made to reduce resistance in order to reduce fuel costs during ship operation. ) is known to be very effective to reduce the frictional resistance of a ship by laying it like a carpet.

In this way, a system for reducing the frictional resistance of the hull by forming an air layer through air bubbles on the bottom surface of the ship is called an air lubrication system (ALS).

The foregoing technical configuration is a background technology for helping understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

Republic of Korea Patent Registration No. 10-1679491 “Air Lubrication System”

Ships with a general air lubrication system use a large-capacity air compressor installed inside the hull to spray compressed air on the bottom surface of the hull. The effect of the air lubrication system, which reduces power consumption by reducing the frictional resistance acting on the air lubrication system, can be partially offset.

In other words, as much power is consumed by the continuous operation of the large-capacity compressor as much as the amount of power saved by forming air bubbles on the bottom surface of the hull and reducing frictional resistance acting on the hull during ship operation, the energy efficiency of the ship is low. will lose

The present invention supplies compressed air to the bottom surface of the ship to reduce the frictional resistance generated during the ship's operation, and generates electric energy using the flow of seawater to use air as a power source for operating the air lubrication system. It is an object of the present invention to provide a ship to which a lubrication system is applied and a power generation device using seawater of the ship.

According to one aspect of the present invention, a power generation device using seawater of a ship, comprising: a through-pipe portion formed through a lower portion of a hull so that seawater flows into the interior; And a power generation device using seawater of a ship including a turbine unit installed on the through-pipe portion to generate electric energy may be provided.

The turbine unit may include a vertical shaft that is installed vertically in the longitudinal direction of the through pipe and rotates in both directions in order to generate electricity regardless of the flow direction of seawater flowing into the through pipe.

In addition, at least a portion of the through pipe portion may be disposed below the sea level.

In addition, the through pipe portion may be formed on at least one of the port side, starboard side, or ship bottom of the hull.

In addition, a mesh-type filter installed at both ends of the through-pipe in the longitudinal direction to filter foreign substances in seawater; and a backwashing line for removing foreign substances from the filter by supplying compressed air into the through-pipe part.

In addition, the backwashing line may be branched from a compressed air supply line for supplying compressed air to the bottom surface of the hull.

In addition, the main pipe having a hollow pipe shape and integrally formed with the turbine unit; and a pair of extension pipes connected to the front and rear ends of the main pipe and having openings through which seawater is introduced or discharged.

In addition, the opening may be formed such that its cross-sectional area gradually increases in a direction away from the main pipe.

In addition, it may further include an on-off valve installed on each of the pair of extension pipes to block the inflow of seawater into the main pipe.

In addition, the backwashing line may be connected to the pair of extension pipes, respectively, and disposed between the filter and the on-off valve.

In addition, the turbine unit is rotated by the flow of seawater inside the main pipe and turbine blades for transmitting rotational force to the vertical shaft; and a generator connected to the vertical shaft to generate electric energy by rotation of the turbine blades.

According to another aspect of the present invention, a ship to which an air lubrication system for reducing frictional resistance of a hull is applied, comprising: an ALS compressor installed in an inner space of the hull to generate compressed air; a compressed air supply line for supplying compressed air to the bottom surface of the hull; And a ship including the generator and an air lubrication system using electrical energy generated in the turbine unit as a power source for driving the ALS compressor may be provided.

The turbine unit may be provided for maintenance inside a machine room (Machinery room) of the hull.

The present invention includes a turbine unit that generates electrical energy using seawater flow and uses the electrical energy generated by the turbine unit as a power source for an air lubrication system, thereby having an advantageous effect in terms of operating cost of the ship.

In addition, the openings at both ends of the through-piping portion where the turbine unit is installed are provided in a cone radial structure with a gradually increasing cross-sectional area, thereby minimizing resistance due to seawater flow or damage to the hull, and seawater inflow and discharge into the through-pipe portion. This may have a facilitating effect.

In addition, by installing a mesh-type filter at both ends of the through-pipe portion, it is possible to prevent foreign substances in seawater from entering the turbine unit.

In addition, by providing a backwashing line branching from the compressed air supply line of the air lubrication system, a backwashing operation for removing foreign substances stuck in the filter may be possible.

In addition, it is possible to prevent damage to the turbine unit during filter backwashing by installing an on-off valve on each of the extension pipes, and to have the effect of enabling maintenance of the turbine unit inside a machinery room.

1 is a view schematically showing the configuration of a ship to which an air lubrication system according to an embodiment of the present invention is applied.
2 is a schematic side cross-sectional view of the generator shown in FIG. 1;
Figure 3 is a view schematically showing the front view of the bow side of the ship to which the air lubrication system according to an embodiment of the present invention is applied.
FIG. 4 is an enlarged view of the opening shown in FIG. 3 .
5 is a view showing a part of a power generation device using seawater of a ship to which an air lubrication system according to an embodiment of the present invention is applied, separated.
Figure 6 is a view showing various modifications of the turbine unit shown in Figure 5;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, in adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings.

In describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

In addition, although preferred embodiments of the present invention will be described below, the technical idea of the present invention is not limited or limited thereto and can be modified and implemented in various ways by those skilled in the art.

1 is a schematic plan view showing the configuration of a ship to which an air lubrication system according to an embodiment of the present invention is applied, FIG. 2 is a schematic side cross-sectional view of the power generation device shown in FIG. 1, FIG. Is a view schematically showing the front view of the bow side of the ship to which the air lubrication system according to an embodiment of the present invention is applied.

In addition, FIG. 4 is an enlarged view of the opening shown in FIG. 3, and FIG. 5 is a view separately showing a part of a power generation device using seawater of a ship to which an air lubrication system according to an embodiment of the present invention is applied, Figure 6 is a view showing various modifications of the turbine unit shown in Figure 5;

The ship of this embodiment may be provided with (or applied to) an air lubrication system (ALS) for reducing frictional resistance of the hull during operation of the ship by spraying compressed air on the bottom surface of the hull.

Referring to FIG. 1, a ship to which an air lubrication system according to an embodiment of the present invention is applied is for reducing the frictional resistance of the ship by spraying compressed air on the bottom surface of the ship, and the inner space of the hull (H) An ALS compressor 10 installed in and generating compressed air, a compressed air supply line 30 connected to the ALS compressor 10 and supplying compressed air generated by the ALS compressor 10 to the bottom of the ship, and an ALS compressor ( It may include a plurality of air chambers 50 for spraying the compressed air generated in 10) to the surface of the ship bottom.

A ship to which an air lubrication system according to an embodiment of the present invention is applied can generate compressed air by driving the ALS compressor 10, and a plurality of By supplying compressed air to the air chamber 50 of the ship, it is possible to reduce the frictional resistance of the hull (H) through the air layer formed on the surface of the ship bottom.

In this embodiment, a plurality of air injection holes (not shown) may be formed in each of the plurality of air chambers 50 to inject air to the bottom surface of the ship.

Referring to FIG. 1, the ALS compressors 10 of this embodiment are provided as a pair and are provided in each of a plurality of air chambers 50 disposed on the port side and the starboard side of the hull H. Although it is shown that it is configured to supply compressed air, the present invention is not limited thereto, and the number and installation structure of the ALS compressor 10 depends on the size of the ship, that is, the inner space of the hull or the required operating speed, or the ALS compressor ( 10) can be applied in various ways considering the capacity or performance.

In this embodiment, a first valve 31 and a cooler 33 may be installed on the compressed air supply line 30 .

The first valve 31 may serve to control compressed air generated by the ALS compressor 10 to be supplied to the bottom of the ship during ship operation, and the cooler 33 serves to cool the compressed air supplied to the bottom of the ship. can be done

Here, the first valve 31 may be preferably installed between the ALS compressor 10 and the cooler 33 on the compressed air supply line 30 .

As shown in FIG. 1, a vessel to which an air lubrication system according to an embodiment of the present invention is applied includes a plurality of auxiliary supply lines 70 connected in parallel to a compressed air supply line 30, and a plurality of auxiliary supplies. Each of the lines 70 may further include a plurality of chamber connection lines 90 connected to the plurality of air chambers 50 in parallel.

The plurality of air chambers 50 may be connected in parallel to each of the plurality of auxiliary supply lines 70 to form one or more groups, and each of the plurality of auxiliary supply lines 70 includes a second valve 71 and a flow meter. (73) can be installed.

The second valve 71 is for controlling the flow rate supplied from the auxiliary supply line 70 to the chamber connection line 90, and may be installed on the auxiliary supply line 70 on the downstream side of the flow meter 73. .

In addition, similar to the plurality of auxiliary supply lines 70, a third valve 91 and a flow meter (unsigned) may be installed in each of the plurality of chamber connection lines 90.

Although not shown in the drawings, the air lubrication system of this embodiment further includes an outboard discharge line 35 for discharging compressed air branched from the compressed air supply line 30 and supplied to the plurality of air chambers 50 outboard. On the outboard discharge line 35, a blow-off valve for controlling the discharge of the compressed air generated by the ALS compressor 10 to the outside of the hull H when the ship is anchored or turning (Unsigned) may be additionally installed.

Here, the outboard discharge line 35 may be installed on the upstream side of the plurality of air chambers 50, and is preferably installed on the downstream side of the cooler 33 on the compressed air supply line 30. can

A ship to which an air lubrication system according to an embodiment of the present invention is applied can supply compressed air to a plurality of air chambers 50 through an ALS compressor 10 fmf, and air bubbles are formed on the bottom surface of the ship. It may have the effect of reducing the frictional resistance of the hull (H) by forming an air layer through.

Here, when the ALS compressor 10 is continuously driven to form a stable air layer on the surface of the bottom of the ship, a considerable amount of energy is inevitably consumed.

Specifically, air lubrication that requires a large amount of power to drive the ALS compressor 10 in order to spray compressed air on the bottom surface of a ship and reduces power consumption by reducing frictional resistance acting on the hull (H) Some of the effects of the system can be offset.

In other words, as much power is consumed due to the continuous operation of the large-capacity compressor as much as the amount of power saved by forming air bubbles on the surface of the bottom of the ship and reducing the frictional resistance acting on the hull (H) during ship operation, the energy efficiency of the ship is low. will lose

The present invention reduces the frictional resistance generated during the operation of the ship by supplying compressed air to the bottom surface of the ship, and generates electric energy using the flow of seawater, which can be used as a power source for operating the air lubrication system It is intended to provide a power generation device 100 for a ship.

As shown in FIGS. 1 and 2, the power generation device 100 using seawater of a ship according to an embodiment of the present invention is for generating electrical energy required for the operation of an air lubrication system using the flow of seawater. As a result, a through-pipe part 110 formed through the bottom of the hull H so that seawater can flow into the inside, and a turbine unit 130 installed on the through-pipe part 110 to generate electrical energy can include

The penetrating pipe 110 provides a passage through which seawater flows in and out during operation of the ship, and may be placed anywhere where it is easy to install depending on the shape of the ship. (Starboard), or may be formed on at least one of the bottom (bottom).

Here, although it may be preferable that the through pipe 110 is provided parallel to the keel of the ship, it does not necessarily have to be made of a straight pipe, and at least part of it may be made of a curved pipe according to the line.

In addition, at least a portion of the through-pipe part 110 may be disposed below the sea level, and more specifically, it is located below the draft required during operation (or operation) of the ship (see FIG. 2) It may be desirable to be

The through pipe part 110 of this embodiment has a hollow pipe shape and is connected to the main pipe 111 in which the turbine unit 130 is integrally formed, and the front and rear ends of the main pipe 111, so that seawater is introduced or discharged. It may be made of a pair of extension pipes 113 having an opening 115 to become.

Here, the main pipe 111 and the pair of extension pipes 113 may be flange-coupled to each other.

Specifically, as shown in FIGS. 1 to 3 and 5 at both ends of the main pipe 111 in the longitudinal direction, pipe flanges 111a having an expanded diameter may be formed, and a pair of extension pipes 113 ) Corresponds to the pipe flange 111a, coupling flanges 113a for coupling with the main pipe 111 may be formed, respectively.

The openings 115 respectively provided at both ends of the through pipe 110 in the longitudinal direction, that is, the pair of extension pipes 113, may serve as an inlet through which seawater flows in or an outlet through which seawater is discharged. And, depending on the flow direction of seawater, their roles can be changed.

The opening 115 of this embodiment may have a cone-shaped radial structure by forming a cross-sectional area gradually increasing in a direction away from the main pipe 110.

That is, in the power generation device 100 using seawater of a ship according to an embodiment of the present invention, the opening 115 serving as the inlet or outlet of seawater is provided in a cone radial structure, so that resistance due to the flow of seawater or the hull It is possible to minimize the damage of (H), and it may have an effect of facilitating the inflow and discharge of seawater into the through pipe part 110.

Referring to FIG. 4, the opening 115 is shown to be provided in a cross-sectional structure symmetrical in the left and right or up and down directions, but the present invention is not limited thereto, and the opening 115 of this embodiment is installed in a ship. It may be made of a left-right or up-down asymmetric cross-sectional structure in consideration of the position or shape of the ship.

That is, the opening 115 of this embodiment may have a circular or elliptical cross section, but the shape of the opening 115 is not particularly limited, and the inflow of seawater into the through pipe 110 is easy and the resulting hull (H) can be provided in various forms as long as the damage can be minimized.

The turbine unit 130 is for generating electrical energy using the flow of seawater, and can generate electrical energy by converting the flow of seawater flowing into the through pipe 110 into rotational motion or reciprocating motion.

The turbine unit 130 of this embodiment may be a vertical axial type turbine capable of self-generation regardless of the direction of seawater flow and capable of generating power using tidal current even during reverse propulsion or anchoring.

Specifically, the turbine unit 130, as shown in Figure 5, may include a vertical axis (vertical axis) 131 installed perpendicular to the longitudinal direction of the main pipe 111, the vertical axis 131 is , In order to improve energy generation efficiency (or energy collection efficiency), it may be desirable to be provided so as to be able to rotate in both directions according to the flow direction of seawater.

That is, in the turbine unit 130 of the present embodiment, the vertical axis 131 and the flow direction of the seawater are perpendicular to each other, and power generation is possible regardless of the flow direction of the seawater flowing into the through-pipe part 110, and relatively It can have an effect that can be operated even at a low flow rate.

On the other hand, the turbine unit 130 is rotated by the flow of seawater inside the main pipe 111 and is connected to a turbine blade 133 that transmits rotational force to the vertical shaft 131 and the vertical shaft 131 It may further include a generator (Generator) 135 that generates electrical energy by rotation of the turbine blades 133.

As shown in FIG. 6, the turbine blade 133 is Darrieus (see FIG. 6 (a) to (c)), Gorlov (see FIG. 6 (d)), or It can be made in various known shapes such as Savonius (see (e) in FIG. 6), and can be selected and applied in the most efficient shape that can generate power not only during ship operation but also by current during reverse propulsion or anchoring. .

The generator 135 may generate electrical energy by rotation of the turbine blades 133 provided inside the through pipe 110, and the electrical energy generated by the generator 135 is used to operate the air lubrication system. It can be used as a power source.

As described above, in the past, it was difficult to expect a perfect energy saving effect because a large amount of power was consumed to drive the compressor, but in this embodiment, electricity is generated through the flow of naturally occurring seawater By generating energy and using it as a power source for operating the ALS compressor 10, it is possible to increase the effectiveness of the air lubrication system through self-generation during ship operation.

That is, the generator 100 of this embodiment uses the electric energy generated in the turbine unit 130 as a power source for the ALS compressor 10 operated during the ship's operation, thereby supplying separate power for the air lubrication system. Since this becomes unnecessary, it can have a beneficial effect in terms of the operating cost of the ship.

In addition, since the air lubrication system is a system that is required only during the operation of the ship, and the power generation device 100 of this embodiment can expect maximum power generation during the operation of the ship, the interaction between the air lubrication system and the power generation device 100 As a result, energy saving efficiency can be increased.

In this embodiment, the electrical energy generated by the generator 135 can be directly used as a power source for the ALS compressor 10 of the air lubrication system, but power is supplied via a battery (not shown) provided in the hull H. It may be desirable to configure to enable this to maintain a stable power supply.

Referring back to FIGS. 1 and 2, a mesh type filter 117 for filtering foreign substances in seawater is additionally installed at both ends in the longitudinal direction of the through pipe part 110, and the turbine unit due to foreign substances in seawater ( 130) can be prevented.

On the other hand, this mesh-type filter 117 needs to be cleaned periodically because foreign matter may adhere to the surface over time and the filtration efficiency may decrease.

In the power generation device 100 using seawater of a ship according to an embodiment of the present invention, a backwashing line 150 for removing foreign substances from a filter 117 by supplying compressed air into the through pipe 110 can include more.

The backwashing line 150 performs a backwashing operation, that is, sprays compressed air in the opposite direction of the seawater flowing into the through pipe 110 to remove foreign substances caught in the filter 117. can do.

In this embodiment, it may be considered that a separate compressor is provided to supply compressed air to the backwashing line 150, but the frictional resistance of the hull (H) is reduced by using compressed air in the ship of this embodiment. Since an air lubrication system is applied for this, it is configured to supply compressed air from the ALS compressor 10 that generates compressed air of the air lubrication system to the backwashing line 150, so that equipment additionally installed inside the hull (H) want to minimize

In other words, it is preferable that the backwashing line 150 of this embodiment is connected to the ALS compressor 10 and branched off from the compressed air supply line 30 for supplying compressed air to the bottom surface of the hull H. can

The backwashing line 150 is branched from the compressed air supply line 30, more specifically, the downstream side of the cooler 33, and the compressed air generated in the ALS compressor 10 is passed into the extension pipe 113. It can be configured to supply.

In this embodiment, an isolation valve 119 may be installed in each of the pair of extension pipes 113 to block (or control) the inflow of seawater into the main pipe 111, The backwashing line 150 branching from the compressed air supply line 30 may be connected to a pair of extension pipes 113 connected to the front and rear ends of the main pipe 110, respectively.

Here, the backwashing line 150 is connected to a pair of extension pipes 113, respectively, and may be disposed between the filter 117 and the on-off valve 119, and is close to the main pipe 111. can be located

That is, through the backwashing line 150 branching from the compressed air supply line 30 of the air lubrication system, a backwashing operation for removing foreign substances stuck in the filter 117 may be possible, and during the backwashing operation, the opening and closing By operating the valve 119 to block the inflow of compressed air or seawater into the main pipe 111, damage to the turbine unit 130 can be prevented.

In the power generation device 100 using seawater of a ship according to an embodiment of the present invention, the main pipe 111 integrally formed with the turbine unit 130 is flanged with a pair of extension pipes 113, and the pair By providing the on-off valve 119 on each of the extension pipes 113 of the turbine unit 130, when the turbine unit 130 is broken or damaged, or when inspected, the inside of the hull (H) rather than the dry dock (Drydock), more specifically, the machine room of the ship (Machinery room) (not shown) may have the effect of enabling maintenance (maintenance).

That is, in the power plant 100 of the present embodiment, when the efficiency of the turbine unit 130 is low, maintenance, inspection, and management of the turbine unit 130 are possible even during the operation of the ship, so that the ship's OPEX (Operating Expenditure ) can also be advantageous in terms of savings.

In this embodiment, on the backwashing line 150, to block the backwashing line 150 according to the high-speed operation of the ship or other needs, to adjust so that sufficient compressed air can be supplied to the plurality of air chambers 50 A control valve 151 may be installed.

Here, the control valve 151 may be preferably located close to the branching point of the backwashing line 150 from the compressed air supply line 30 .

A ship to which an air lubrication system according to an embodiment of the present invention is applied includes a turbine unit that generates electrical energy using seawater flow and uses the electrical energy generated by the turbine unit as a power source for the air lubrication system. can have a favorable effect in terms of operating costs.

In addition, the openings at both ends of the through-piping portion where the turbine unit is installed are provided in a cone radial structure with a gradually increasing cross-sectional area, thereby minimizing resistance due to seawater flow or damage to the hull, and seawater inflow and discharge into the through-pipe portion. This may have a facilitating effect.

In addition, by installing a mesh-type filter at both ends of the through-pipe portion, it is possible to prevent foreign substances in seawater from entering the turbine unit.

In addition, by providing a backwashing line branching from the compressed air supply line of the air lubrication system, a backwashing operation for removing foreign substances stuck in the filter may be possible.

In addition, it is possible to prevent damage to the turbine unit during filter backwashing by installing an on-off valve on each of the extension pipes, and to have the effect of enabling maintenance of the turbine unit inside a machinery room.

The ship to which the air lubrication system according to an embodiment of the present invention is applied is any of a ship including an LNG Carrier (LNGC) and an LNG Regasification Vessel (RV) and a special ship including an LNG Floating Storage and Regasification Unit (FSRU) can be one

The above description is merely an example of the technical idea of the present invention, and those skilled in the art can make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. will be.

Therefore, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. .

In addition, the protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

100: power generation device
110: through piping
111: main piping
113: extension pipe
115: opening
117: filter
119: Isolation valve
130: turbine unit
131: Vertical axis
133: Turbine blade
135: Generator
150: Backwashing line
151: Control valve
10: ALS compressor
30: compressed air supply line
31: first valve
33: Cooler
35: outboard discharge line
50: Air chamber
70: auxiliary supply line
71: second valve
73: Flowmeter
90: chamber connection line
91: third valve
H: Hull

Claims (12)

As a power generation device using seawater from a ship,
A through-pipe part formed through the lower part of the hull so that seawater can flow in and flow therein; and
It includes a turbine unit installed on the through-pipe portion to generate electrical energy,
The turbine unit includes a vertical shaft that is installed perpendicular to the longitudinal direction of the through pipe and rotates in both directions in order to generate power regardless of the flow direction of seawater flowing into the through pipe,
Mesh-type filters installed at both ends of the through-pipe in the longitudinal direction to filter foreign substances in seawater; and
Further comprising a backwashing line for removing foreign substances from the filter by supplying compressed air to the inside of the through pipe,
The backwashing line is a ship branching from a compressed air supply line for supplying compressed air to the bottom surface of the hull to supply compressed air from an ALS compressor that generates compressed air using electric energy generated by the generator. A power plant using seawater from According to claim 1,
At least a portion of the through pipe portion is a power generation device using seawater of a ship disposed below the sea level. According to claim 2,
The power generation device using the seawater of the ship formed on at least one of the port side, starboard side, or bottom of the ship through the pipe portion. delete delete According to claim 1,
The through pipe part,
A main pipe having a hollow pipe shape and integrally formed with the turbine unit; and
A power generation device using seawater of a ship including a pair of extension pipes connected to the front and rear ends of the main pipe and having an opening for introducing or discharging seawater. According to claim 6,
The opening is a power generation device using seawater of a ship in which a cross-sectional area is gradually increased in a direction away from the main pipe. According to claim 6,
Power generation device using seawater of a ship further comprising an on-off valve installed on each of the pair of extension pipes to block the inflow of seawater into the main pipe. According to claim 8,
The backwashing line is connected to the pair of extension pipes, respectively, and is disposed between the filter and the on-off valve. According to claim 6,
The turbine unit,
Turbine blades rotated by the flow of seawater inside the main pipe and transmitting rotational force to the vertical shaft; and
A generator using seawater of a ship further comprising a generator connected to the vertical shaft to generate electric energy by rotation of the turbine blade. As a ship to which an air lubrication system is applied to reduce the frictional resistance of the hull,
An ALS compressor installed in the inner space of the hull to generate compressed air;
a compressed air supply line for supplying compressed air to the bottom surface of the hull; and
Including a power generation device using seawater according to claim 1,
Using the electrical energy generated in the turbine unit as a power source for driving the ALS compressor,
Mesh-type filters are installed at both ends of the through-pipe part in which the turbine unit is installed in order to prevent foreign matter in seawater from entering the turbine unit,
Compressed air is supplied to the bottom surface of the hull to supply compressed air from the ALS compressor that generates compressed air using electric energy generated by the power generation device so that a backwashing operation for removing foreign substances stuck in the filter is possible. A vessel with an air lubrication system including a backwashing line branching off from the compressed air supply line for supplying. According to claim 11,
The turbine unit is applied with an air lubrication system that is provided for maintenance inside the machine room (Machinery room) of the hull.

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