JP5562186B2 - Circulation system for ship ballast water - Google Patents

Description

  The present invention relates to a circulation system for ship ballast water, and more particularly to a ship ballast treatment water circulation system in a ship having a water treatment device for sterilizing ballast water.

Conventionally, a ship has been provided with a ballast tank in order to adjust the buoyancy of the load and maintain the stability of the hull during navigation. Drainage from the ballast tank is performed. For this reason, aquatic organisms (including microorganisms) contained in the taken-in seawater are drained to a place different from the intake place, causing the destruction of the ecosystem. Therefore, in the diplomatic meeting of the International Maritime Organization (IMO), the “Convention for the Regulation and Management of Ship Ballast Water and Sediment” (hereinafter referred to as “Ballast Management Convention”) has been adopted.
And receiving this, the invention which disinfects seawater physically or chemically at the time of water intake is disclosed (for example, refer patent documents 1 and 2).

Japanese Patent Laid-Open No. 2003-200156 (page 4-6, FIG. 1) JP 2006-314902 A (page 5-6, FIG. 1)

The invention disclosed in Patent Document 1 generates a shear region in seawater containing fines, destroys and kills microorganisms by the shear phenomenon, and the invention disclosed in Patent Document 2 It makes injection easier and kills aquatic organisms and bacteria by ozone. In any case, sterilized seawater is injected into the ballast tank, so even if it is drained at a port other than the sea where the water is taken (hereinafter sometimes referred to as “foreign country”), the ecosystem will not be destroyed. .
However, the seawater used to clean the cargo hold (hereinafter referred to as “cleaning seawater”) and the seawater sprayed on the cargo (hereinafter referred to as “fireproof seawater”) to prevent spontaneous combustion of cargo (such as coal). May remain in cargo holds and cargo hold bilge reservoirs. For this reason, if the remaining water is drained to a place different from the place of water intake, the ecosystem will be destroyed.
In order to prevent the destruction of the ecosystem, a separate water treatment device is required to sterilize the seawater for washing and fireproofing separately from water injection for the ballast tank, making it difficult to secure installation space. At the same time, there is a problem that the manufacturing cost increases.

  The present invention solves such a problem, and without adding a new water treatment device for washing seawater and fireproof seawater, it is possible to sterilize washing seawater and fireproof seawater, An object of the present invention is to provide a circulation system for ballast-treated water of a ship, which can replace seawater stopped in a part of piping with ballast-treated water that is seawater that has passed through a water treatment device.

(1) A ship ballast treatment water circulation system according to the present invention includes a ballast seawater suction box, a ballast pump, a water treatment device, a ballast tank, a fire fighting / bilge pump, a cargo hold, and a stern. A vessel having a water tank,
A pipe provided with an on-off valve for sequentially connecting the ballast seawater suction box, the ballast pump, the water treatment device, and the ballast tank;
A pipe provided with an on-off valve for sequentially connecting the ballast tank, the ballast pump, and the ballast discharge port;
A branch point provided in a pipe connecting the water treatment device and the ballast tank, a pipe provided with an on-off valve for sequentially connecting the fire fighting / bilge system pump and the cargo hold;
A pipe provided with an on-off valve for sequentially connecting the cargo hold, the fire fighting / bilge system pump and the fire fighting / bilge system discharge port;
A branch point provided in a pipe connecting the water treatment device and the ballast tank, and a pipe provided with an on-off valve connecting the stern aquarium;
A pipe provided with an on-off valve for sequentially connecting the stern aquarium, the firefighting / bilge system pump and the firefighting / bilge system outlet;
A branch point provided in a pipe connecting the firefighting / bilge system pump and the cargo hold and a pipe provided with an on-off valve connecting the ballast tank;
It is characterized by having.

(2) It also has a ballast eductor, a fire and bilge system eductor, and a fire and bilge system seawater inlet,
A branch point provided in a pipe connecting the ballast pump and the water treatment device, and a pipe provided with an on-off valve connecting the drive side of the ballast eductor;
A pipe provided with an on-off valve for connecting the suction side of the ballast tank and the ballast eductor;
A pipe provided with an on-off valve for connecting the discharge side of the ballast system eductor and the ballast system drain; and
A pipe provided with an on-off valve for connecting the firefighting / bilge system seawater inlet and the upstream side of the firefighting / bilge system pump;
A branch point provided in a pipe connecting the downstream side of the firefighting / bilge system pump and the cargo hold and a pipe provided with an on-off valve connecting the driving side of the firefighting / bilge system eductor;
A pipe provided with an on-off valve for connecting the cargo hold and the suction side of the fire fighting / bilge system eductor;
A pipe provided with an open / close valve for connecting the discharge side of the fire fighting / bilge system eductor and the fire fighting / bilge system drainage port;
It is characterized by having.

(3) Further, in the above (2), there is provided a pipe provided with an on-off valve for connecting the discharge side of the fire fighting / bilge system eductor and the ballast tank.
(4) Further, in any one of the above (1) to (3), the water treatment device is characterized in that one or both of the aqueous organisms and bacteria contained in the seawater are killed.

According to the ship ballast treatment water circulation system of the present invention, the following effects can be obtained.
(I) Seawater that has passed through the water treatment device (referred to as “ballast treated water” in the present invention) is stored in the ballast tank and the stern aquarium, and the ballast treated water stored in the ballast tank is poured into the cargo hold. Therefore, it is possible to prevent the seawater taken in the intake area (including the sea area) different from the drainage area from being discharged as it is (untreated without passing through the water treatment device). This eliminates the need to install extra water treatment equipment to treat the seawater injected into the stern aquarium or cargo hold, thus reducing the cost of new construction of ships that comply with the Ballast Management Convention and complying with the Ballast Management Convention. The degree of freedom of remodeling to a compatible ship is increased, and remodeling can be promoted.

(Ii) Since the ballast-type eductor and the fire fighting / bilge-type eductor are provided, drainage from the ballast tank and the cargo hold is accelerated.
(Iii) Further, the fire fighting / bilge system eductor can be driven (driven) by the ballast treated water stored in the ballast tank, and the bilge accumulated in the cargo hold can be quickly transferred to the ballast tank.
(Iv) Furthermore, since the water treatment device kills one or both of the aquatic organisms and bacteria contained in the seawater, a ship that complies with the ballast management convention is newly constructed or converted to a vessel that complies with the ballast management convention. be able to.

BRIEF DESCRIPTION OF THE DRAWINGS The ship explaining the circulation system of the ballast process water of the ship which concerns on Embodiment 1 of this invention is shown, (a) is a cross-sectional view, (b) is a longitudinal cross-sectional view, (c) is a longitudinal section near a hull outer plate. Plan view. The piping diagram which shows the structure of the circulation system of the ballast process water of the ship which concerns on Embodiment 1 of this invention. The piping diagram which shows the structure of the circulation system of the ballast process water of the ship which concerns on Embodiment 2 of this invention. It is an Example of Embodiment 2, Comprising: The piping diagram which shows the water injection to a ballast tank. It is an Example of Embodiment 2, and is a piping diagram showing drainage of ballast treated water. It is an Example of Embodiment 2, Comprising: The piping diagram which shows replacement operation | movement of a ballast piping system. It is an Example of Embodiment 2, and is a piping diagram showing water injection into the stern aquarium. It is an Example of Embodiment 2, Comprising: The piping diagram which shows the waste_water | drain from a stern water tank. It is an Example of Embodiment 2, Comprising: The piping diagram which shows the water injection to a cargo hold. It is an Example of Embodiment 2, Comprising: The piping diagram which shows the water injection to a cargo hold. It is an Example of Embodiment 2, Comprising: The piping diagram which shows the drainage of the bilge of a cargo hold. It is an Example of Embodiment 2, Comprising: The piping diagram which shows the drainage of the bilge of a cargo hold. It is an Example of Embodiment 2, Comprising: The piping diagram which shows replacement operation | movement of a fire fighting and bilge piping system. It is an Example of Embodiment 2, Comprising: The piping diagram which shows the transfer to the ballast tank of a bilge. It is an Example of Embodiment 2, Comprising: The piping diagram which shows the transfer to the ballast tank of a bilge.

[Embodiment 1]
(Ship)
1 and 2 are diagrams for explaining a circulation system for ballast-treated water of a ship according to Embodiment 1 of the present invention. FIG. 1 (a) is a transverse sectional view showing the ship, and FIG. ) Is a longitudinal sectional view near the central axis showing the ship, FIG. 1C is a longitudinal sectional view near the hull outer plate showing the ship, and FIG. 2 is a piping diagram showing the configuration of the circulation system of the ballast water of the ship. is there.
In FIG. 1, a ship 1 is provided with a plurality of ballast tanks 40 along the starboard 1 a and the portside 1 b, and a plurality of cargo holds 60 are provided in the center in the width direction of the hull in a state sandwiched between the ballast tanks 40. Yes. A double bottom space 1d is provided between the cargo hold 60 and the ship bottom 1c, and the cargo hold bilge for storing the pool water (same as bilge) in the cargo hold 60 in the double bottom space 1d. A reservoir 61 is disposed. The stern 1e is provided with a stern aquarium 70.
FIG. 1 schematically shows a ship, and the shape (including aspect ratio) and size (including the relative size of the cargo hold 60), the quantity, etc. of the ballast tank 40 and the like are as follows. The present invention is not limited to the illustrated form.

(Vessel ballast water circulation system)
In FIG. 2, a ship 1 is equipped with a circulation system (hereinafter referred to as “circulation system”) 2 for the ballast treated water of the ship. The circulation system 2 includes a ballast piping system 2b, a fire fighting / bilge piping system 2c, ,have.
In FIG. 2 and the following description, a “two-digit code (for example,“ jk ”) is attached to a branch point of each member and each pipe forming the circulation system 2, and a member or a branch point (for example,“ jk ”). ") And a pipe that joins a member or a branch point (for example," mn ") with a" four-digit code (for example, "jkmn") ", and the pipe (for example," jkmn "or" mnjk ") A subscript “v” is attached to the on-off valve installed in (for example, “jkmnv” or “mnjkv”).
Moreover, FIG. 2 shows a structure to the last, and the length of piping (relative length of each piping) and the position (distance with a member or a branch point) of the on-off valve installed in piping are as follows. The present invention is not limited to the illustrated form.

(Ballast piping system)
The ballast piping system 2b is a piping system for storing ballast treated water in the ballast tank 40 or draining the ballast treated water stored in the ballast tank 40 to the outside of the ship.
That is, it has a ballast pump 20 for taking in seawater and a water treatment device 30 for sterilizing seawater. Then, from the seawater intake box (same as the seawater intake) 11 provided in the ship 1, from the ballast tank 40, the water intake piping that reaches the ballast tank 40 via the ballast pump 20 and the water treatment device 30, A drainage piping system that reaches the discharge port provided in the ship 1 via the ballast pump 20.

(Intake operation to ballast tank)
Intake of seawater into the ballast tank 40 is performed by opening the on-off valve 1120v installed in the pipe 1120 connecting the seawater suction box 11 and the ballast pump 20 to the pipe 2030 connecting the ballast pump 20 and the water treatment device 30. The installed on-off valve 2030v is opened, and the on-off valves 3031v, 3141v, 4041v installed in the pipes 3031, 3141, 4041 connecting the water treatment device 30 and the ballast tank 40 are opened, and the ballast pump 20 and the water treatment are The device 30 is operated.
At this time, the on-off valve 4121v installed in the piping 4121 connecting the ballast tank 40 and the ballast pump 20 constituting the drainage piping system, and the piping 2212 connecting the ballast pump 20 and the discharge port 12 are installed. The open / close valve 2212v and the open / close valve 3162v installed in the pipe 3162 connecting the ballast pipe system 2b and the fire fighting / bilge pipe system 2c are all closed.
In addition, the on-off valve 4041v is installed for each of the plurality of ballast tanks 40, and only the on-off valve 4041v corresponding to the ballast tank 40 that takes water is opened.

(Draining operation from the ballast tank)
The drainage from the ballast tank 40 stored in the ballast tank 40 to the outside of the ship is installed in pipes 4041 and 4121 that connect the ballast tank 40 and the ballast pump 20 constituting the drainage pipe. The on-off valves 2212v installed in the pipes 2212 connecting the on-off valves 4041v and 4121v and the ballast pump 20 and the discharge port 12 are opened, and the ballast pump 20 is operated.
At this time, the on-off valves 3141v, 1120v, and 2030v are closed.
The on-off valve 4041v is such that only the on-off valve 4041v corresponding to the ballast tank 40 to be drained is opened.

(Replacement of ballasted water from seawater stopped in piping)
After the water intake to the ballast tank 40 is finished, the seawater before passing through the water treatment device 30 is stopped in the pipes 1120 and 2030 between the seawater suction box 11 and the water treatment device 30. Therefore, after the water intake is completed, the untreated seawater is discharged into the water area where the water has been taken by the ballasted water. If it does so, when discharging ballast treated water in a foreign country, it will be prevented that this untreated seawater is discharged to the sea area of a foreign country, and environmental conservation can be aimed at.
That is, the “drainage operation from the ballast tank” is executed for a predetermined relatively short time.

(Firefighting / bilge piping system)
The fire fighting / bilge piping system 2c injects (spreads) the ballast treated water stored in the ballast tank 40 into the cargo hold 60 to prevent spontaneous ignition or clean the cargo hold, or collects it in the cargo hold bilge reservoir 61. Injected water (hereinafter referred to as “bilge”) is discharged to the outside of the ship or transferred to the ballast tank, and the ballast water is supplied to the stern tank 70 or stored in the stern tank 70. And a pipe for discharging the ballast-treated water to the outside of the ship.
That is, water injection piping from the ballast tank 40 to the cargo hold via the fire fighting / bilge pump 50, and the discharge port 14 or the ballast tank 40 from the cargo hold bilge reservoir 61 via the fire fighting / bilge pump 50. And drainage piping.

(Water supply operation to the stern aquarium)
The supply of ballast treated water to the stern aquarium 70 is to supply seawater taken from the seawater suction box 11 in the ballast piping system 2b to the stern tank 70 of the fire fighting / bilge piping system 2c via the water treatment device 30. It is.
That is, the on-off valves 1120v, 2030v, 3031v, 3162v, and 6270v are opened, the ballast pump 20 and the water treatment device 30 are operated, and the water taken in from the seawater suction box 11 is supplied to the ballast pump 20 and the water treatment device 30. To the stern aquarium 70.
At this time, the on-off valves 4121v, 2212v, 3141v of the ballast piping system 2b and the on-off valves 6162v, 6250v of the fire fighting / bilge piping system 2c are all closed.
Note that the water supply operation to the stern aquarium may be performed simultaneously with the “water intake operation to the ballast tank”.

  Further, after the water intake to the stern aquarium 70 is finished, the “drainage operation from the ballast tank” is executed for a predetermined relatively short time, and the piping 1120 between the seawater suction box 11 and the water treatment device 30 is executed. The seawater stopped at 2030 is discharged, and the seawater is replaced with ballast-treated water.

(Draining operation from the stern tank to the outside of the ship)
In the draining operation from the stern tank 70 to the outside of the ship, the on-off valves 6270v, 6250v, 5114v are opened and the fire fighting / bilge pump 50 is operated. At this time, the on-off valves 6162v, 3162v, 5260v, 5240v are closed.

(Water injection operation to cargo hold)
Injecting ballast-treated water into the cargo hold 60 includes on-off valves 4041v, 3141v, 3162v, 6250v installed in pipes 4041, 3141, 3162, 6250 connecting the ballast tank 40 and the fire fighting / bilge system pump 50, fire fighting, An on-off valve 5260v installed in a pipe 5260 connecting the bilge pump 50 and the cargo hold 60 (more precisely, a pipe 5260 branched from the pipe 5052 connected to the firefighting / bilge pump 50 at a branch point 52); , And the fire fighting / bilge pump 50 is operated.
At this time, the open / close valve 6162v installed in the pipe 6162 connected to the cargo hold, the open / close valve 5114v installed in the pipe 5114 connecting the fire fighting / bilge pump 50 and the discharge port 14, and the pipe 6270 connected to the stern aquarium 70. Both the on-off valve 6270v installed in the pipe and the on-off valve 3031v installed in the pipe 3031 connected to the water treatment apparatus 30 are closed.
The on-off valve 5260v is installed for each of the cargo holds 60, and only the on-off valve 5260v corresponding to the cargo hold 60 to which water is poured is opened.

(Drainage operation from the cargo hold bilge reservoir to the outside of the ship)
Drainage from the bilge cargo bilge reservoir 61 to the outside of the ship is provided by on-off valves 6162v and 6250v installed in pipes 6162 and 6250 connecting the cargo bilge reservoir 61 and the fire fighting / bilge pump 50, and the fire fighting / bilge system. The fire fighting / bilge pump 50 is operated by opening the on-off valve 5114v installed in the pipe 5114 connecting the pump 50 and the discharge port 14.
At this time, the open / close valve 6270v installed in the pipe 6270 connected to the stern aquarium 70, the open / close valve 3162v installed in the 3162 connected to the ballast tank 40, the open / close valve 5260v installed in the pipe 5260 connected to the cargo hold 60, The on-off valve 5240v installed at 5240 connected to the ballast tank 40 is closed.
The on-off valve 6162v is such that only the on-off valve 6162v corresponding to the cargo hold bilge reservoir 61 to be drained is opened.

(Transfer operation from cargo hold bilge reservoir to ballast tank)
Bilge transfer from the cargo hold bilge reservoir 61 to the ballast tank 40 includes on-off valves 6162v and 6250v installed in pipes 6162 and 6250 connecting the cargo hold bilge reservoir 61 and the fire fighting / bilge system pump 50, and the fire fighting / bilge system. The fire-fighting / bilge-type pump 50 is operated by opening the on-off valve 5240v installed in the pipe 5240 connecting the pump 50 and the ballast tank 40.
At this time, the on-off valves 3162v, 6270v, 5114v, and 5260v are closed.
Note that the opening / closing valve 6162v and the opening / closing valve 5240v are such that only the opening / closing valve 6162v corresponding to the cargo hold bilge reservoir 61 to be drained and only the opening / closing valve 5240v corresponding to the ballast tank 40 to be received are opened.

As described above, according to the circulation system 2, since only the ballast treated water that has passed through the water treatment device 30 is discharged into the foreign waters, it is possible to thoroughly implement the ballast management treaty and to protect the environment. It becomes possible.
In addition, the format of the water treatment apparatus 30 is not limited, and may be either a physical process or a chemical process. Further, the type of the on-off valve 1120v or the like is not limited, and may be one that is opened and closed by mechanical force (including one that is remotely operated) or one that is opened and closed by human power.
Further, the above is shown in a form in which the respective pipes are aggregated. However, the present invention is not limited to this, and according to each of the above-described operations, a separate piping suitable for the operation or a separate fire fighting / billing machine is provided. It may be a system pump. Therefore, the number of branch points and on-off valves is not limited. Furthermore, the case where there is no stern aquarium 70 may be sufficient.

[Embodiment 2]
(Vessel ballast water circulation system)
FIG. 3 is a configuration diagram for explaining a circulation system for ballast water of a ship according to Embodiment 2 of the present invention. In addition, the same code | symbol is attached | subjected to the part which is the same as that of Embodiment 1, or an equivalent part, and one part description is abbreviate | omitted.
In FIG. 3, a circulation system (hereinafter referred to as “circulation system”) 3 of a ship's ballast treated water is mounted, and the circulation system 3 is formed of a ballast piping system 3 b and a fire fighting / bilge piping system 3 c. Yes. The ballast piping system 3b is provided with a ballast system eductor 80 for quickly and efficiently discharging ballast treated water to the outside of the ship. The firefighting / bilge piping system 3c includes a cargo hold bilge 61 and a stern. A fire-fighting / bilge-type eductor 90 is installed to expedite and efficiently discharge bilge and ballast-treated water from the aquarium 70 to the outboard.

(Ballast piping system)
In the ballast piping system 3b, a ballast system eductor 80 is installed in parallel with the piping 2324 connecting the ballast pump 20 and the discharge port 12.
That is, the pipe 2380 branches from the pipe 2324 at the branch point 23, and the pipe 2380 is connected to the drive side (drive side) of the ballast eductor 80.
Further, the pipe 4121 connecting the ballast tank 40 and the ballast pump 20 is branched at the branch point 42, and the pipe 4280 is connected to the suction side of the ballast eductor 80.
Further, the pipe 8024 connected to the discharge side of the ballast eductor 80 is connected to the pipe 2422 at the branch point 24.

(Draining operation from the ballast tank)
The drainage of the ballast treated water stored in the ballast tank 40 operates the ballast pump 20 with the on-off valves 1120v, 2380v, 8024v, and 2212v open and the on-off valves 2324v and 2030v closed. When the on-off valves 4041v and 4280v installed in the pipes 4041 and 4280 connecting the ballast tank 40 and the ballast eductor 80 are opened, the ballast treated water stored in the ballast tank 40 is discharged by the ballast eductor 80. It is aspirated strongly and discharged rapidly out of the ship.
At this time, the on-off valve 3141v installed in the pipe 3141 connected to the fire fighting / bilge piping system 3c and the on-off valve 4121v installed in the pipe 4121 (the pipe 4121 between the branch point 42 and the branch point 21) are closed. ing.

(Replacement of ballasted water from seawater stopped in piping)
After draining the ballast tank 40, the pipes 1120, 2023, 2380, 8024, 2422, and 2212 from the seawater suction box 11 to the discharge port 12 via the ballast eductor 80 are sucked from the seawater suction box 11. Seawater (not passing through the water treatment device 30) is stopped. Therefore, after the water intake is completed, in order to discharge the untreated seawater into the sea area where the water has been taken in with the ballast treated water, it is stored in the ballast tank 40 on the drive side of the ballast system eductor 80 for a predetermined relatively short time. Supply the treated ballast water.
That is, the on-off valves 4041v, 4121v, 2380v, 8024v, and 2212v are opened, the on-off valves 3141v, 4280v, 2030v, 2324v, and 1120v are closed, the ballast pump 20 is operated, and the stopped seawater is supplied to the ballast tank 40. The stored ballast-treated water is discharged out of the ship, and the seawater is replaced with the ballast-treated water.

(Firefighting / bilge piping system)
The fire fighting / bilge piping system 3c connects the pipe 1350 connecting the seawater suction box 13 provided in the ship 1 (not shown) and the fire fighting / bilge pump 50, and the fire fighting / bilge pump 50 and the discharge port 14. A fire fighting / bilge-type eductor 90 is installed in parallel with the piping 5053.
That is, the pipe 5053 is branched from the pipe 5390 at the branch point 53, and the pipe 5390 is connected to the drive side (drive side) of the fire fighting / bilge system eductor 90.
Further, the pipe 6250 is branched from the pipe 6390 at the branch point 63, and the pipe 6390 is connected to the suction side of the fire fighting / bilge system eductor 90.
Further, the pipe 9054 connected to the discharge side of the fire fighting / bilge system eductor 90 is connected to the pipe 5451 at the branch point 54.

(Drainage operation from the cargo hold bilge reservoir to the outside of the ship)
For drainage from the cargo hold bilge reservoir 61 to the outside of the ship, the on-off valves 1350v, 5390v, 9054v, 5114v are opened, the on-off valves 6250v, 5260v, 5354v are closed, and the fire fighting / bilge system pump 50 is operated. And if the on-off valves 6162v and 6390v installed in the pipes 6162 and 6390 are opened, the bilge (ballast treated water) stored in the cargo hold bilge reservoir 61 is strongly sucked by the fire fighting / bilge system eductor 90, It is quickly discharged out of the ship. At this time, the on-off valves 3162v and 6270v and the on-off valve 6250v installed in the pipe 6250 (the pipe 6250 between the branch point 63 and the branch point 55) are closed.

(Replacement of ballasted water from seawater stopped in piping)
Pipes 1350, 5053, 5390, 9054, 5451, 5114 from the seawater suction box 13 to the discharge port 14 through the firefighting / bilge eductor 90 after the drainage of the cargo hold bilge reservoir 61 to the outside of the ship is completed. The seawater sucked from the seawater suction box 13 (not passing through the water treatment device 30) is stopped. Therefore, after the water intake is completed, in order to discharge the untreated seawater to the sea area where the water has been taken in by the ballast-treated water, the drive side (drive side) of the firefighting / bilge system eductor 90 is used for a predetermined relatively short time. Ballast treated water stored in the ballast tank 40 is supplied.
That is, in the ballast piping system 3b, the on-off valves 4041v, 3141v, 3162v are opened, and the on-off valves 3031v, 4121v, 4280v, 5240v are closed. In the fire fighting / bilge piping system 3c, the on-off valves 6250v, 5390v, 9054v, 5114v are opened, and the on-off valves 6162v, 6270v, 1350v, 5354v, 5260v, 6390v are closed.

  As described above, according to the circulation system 3, only the ballast treated water that has passed through the water treatment device 30 is discharged into the foreign waters in the same manner as the circulation system 2 (Embodiment 1). It is possible to ensure thorough implementation and to preserve the environment. Furthermore, since the ballast-type eductor 80 or the fire fighting / bilge-type eductor 90 can be drained out of the ship, the drainage operation can be speeded up and made efficient.

[Example]
(Vessel ballast water circulation system)
4 to 15 are examples of the circulation system 3 shown in the second embodiment and are piping diagrams showing how to flow ballast treated water. In the figure, ballast-treated water or seawater is flowing through a pipe indicated by a thick solid line.
In this example, the function of the fire fighting / bilge pump 50 in the second embodiment is shared by the fire fighting / bilge pump 50b and the fire fighting / miscellaneous pump 50z. The arrangement is different from that in the second embodiment.
In order to simplify the explanation and the drawings, the reference numerals of the on-off valves are different from those in the second embodiment, and the reference numerals are omitted for the piping.

(Water injection to ballast tank)
In FIG. 4, when the seawater sucked from the seawater suction box 11 is injected into the ballast tank 40 via the ballast pump (same as the ballast pump) 20 and the ballast water treatment device (same as the water treatment device) 30, (Same as on-off valve) 21v, 19v, 17v, 14v, 24v, 25v are opened, and valves 20v, 18v, 16v, 13v, 12v, 26v, 15v, 33v are closed.

(Drainage from ballast tank)
In FIG. 5, when the ballast treated water stored in the ballast tank 40 is discharged out of the ship using a ballast eductor (same as the ballast eductor) 80, the valves 21v, 19v, 17v, 16v, 13v, 12v are Open the valve 20v, 18v, 14v, 24v, 33v and supply seawater to the drive unit of the ballast eductor 80. Further, the valve 15v is opened, the valve 25 is closed, and the ballast treated water is sucked from the ballast tank 40 to the ballast eductor 80.
In order to discharge the ballast treated water stored in the ballast tank 40 to the outside of the ship without using the ballast eductor 80, the valves 21v, 33v, 18v, 16v, 13v, 24v, 15v, 25v are closed, 20v, 19v, 17v, 14v, 12v may be opened and the ballast pump 20 may be operated.

(Replacement of seawater parked in the pipe to the ballast water treatment system)
In FIG. 6, if the valves 33v, 19v, 17v, 16v, 13v and 12v are open, the valves 21v, 20v, 18v, 14v, 24v, 15v and 25v are closed and the ballast pump 20 is operated, It is possible to discharge the seawater that has stopped in the piping from 11 to the discharge through the ballast eductor 80 to the outside of the ship and replace the seawater stopped in the piping with ballast-treated water.

(Water injection to stern aquarium)
In FIG. 7, when the seawater sucked from the seawater suction box 11 is injected into the stern aquarium 70 via the ballast pump 20 and the ballast water treatment device 30, the valves 21, 19, 17v, 14v, 24v, 26v, 32v are The valve 20v, 33v, 18v, 16v, 13v, 12v, 25v, 6v, 7v is closed.

(Drainage from the stern aquarium to the outside of the ship)
In FIG. 8, in order to drain the ballast treated water stored in the stern aquarium 70 to the outside of the ship using the fire fighting / miscellaneous pump 50z, the valves 32v, 7v, 9v, 8v, 22v, 2v are opened and the valve 26v is opened. , 30v, 10v, 11v, 28v, 29v, 6v, 5v, 4v are closed, and the fire fighting / miscellaneous pump 50z is operated.

(Injection of ballast water into the cargo hold through ballast water treatment equipment)
In FIG. 9, in order to inject seawater sucked from the seawater suction box 11 into the cargo hold 60 via the ballast water treatment device 30, valves 21v, 19v, 17v, 14v, 24v, 26v, 7v, 9v, 8v 5v is opened, the valves 20v, 18v, 16v, 13v, 12v, 25v, 33v, 6v, 30v, 10v, 11v, 28v, 29v, 22v, 32v are closed, and the fire fighting / miscellaneous pump 50z is operated.

(Injection of ballast water into cargo hold)
In FIG. 10, in order to inject the ballast water stored in the ballast tank 40 into the cargo hold 60 by the fire fighting / miscellaneous pump 50z, the valves 25v, 26v, 7v, 9v, 8v, 5v are opened, the valves 15v, 18v, 20v, 33v, 24v, 32v, 6v, 30v, 10v, 11v, 28v, 29v, and 22v are closed.

(Drainage from cargo hold bilge reservoir to bilge outboard)
In FIG. 11, in order to drain the bilge stored in the cargo hold bilge reservoir 61 to the outside of the ship, the valves 10v, 28v, 22v and 2v are opened and the valves 3v, 9v, 8v and 11v are opened using the fire fighting / bilge pump 50b. 29v, 6v, 5v, 4v are closed.
In FIG. 12, the valves 11v, 28v, 22v, 4v, and 1v are opened to drain the bilge stored in the cargo hold bilge reservoir 61 to the outside of the ship by the bilge eductor (same as the fire fighting / bilge system eductor) 90. The valves 30v, 8v, 9v, 10v, 29v, 5v, 6v and 2v are closed, and the seawater sucked from the seawater suction box 13 is supplied to the drive side (drive side) of the bilge eductor 90 by the fire fighting / bilge pump 50b. Then, the valve 3v is opened and the bilge eductor 90 sucks the bilge stored in the cargo hold bilge reservoir 61.

(Replacement of seawater stopped in piping before and after the fire and bilge pump)
In FIG. 13, if the seawater supplied to drive the bilge eductor 90 is stopped in the pipe, there is a risk of polluting the environment when discharging bilge or the like out of the ship in a foreign country. Therefore, immediately after the bilge eductor 90 stops, the seawater stopped in the pipe by the ballast treated water is discharged out of the ship.
That is, the valves 25v, 26v, 7v, 30v, 28v, 22v, 4v, 1v are opened, and the valves 15v, 18v, 20v, 33v, 24v, 32v, 6v, 8v, 9v, 10v, 11v, 29v, 5v, 2v, 23v and 3v are closed and the fire and bilge pump 50b is operated.

(Transportation of cargo bilge storage bilge to ballast tank)
In FIG. 14, in order to transfer the bilge stored in the cargo hold bilge reservoir 61 to the ballast tank 40, the valves 10v, 28v, 29v are opened and the valves 3v, 8v, 9v, 11v are opened using the fire fighting / bilge pump 50b. , 6v, 5v, 22v are closed.
In FIG. 15, in order to drive the bilge eductor 90 with the ballast treated water and transfer the bilge stored in the cargo hold bilge reservoir 61 to the ballast tank 40, valves 25v, 26v, 7v, 9v, 28v, 22v, 4v and 23v are opened, the valves 15v, 18v, 20v, 33v, 24v, 32v, 6v, 30v, 10v, 8v, 11v, 29v, 5v, 2v, and 1v are closed, and the ballast water is fired from the ballast tank 40. The bilge pump 50b supplies to the drive side of the bilge eductor 90, the valve 3v is opened and the bilge eductor 90 sucks the bilge stored in the cargo hold bilge reservoir 61 and transfers it to the ballast tank 40 together with the ballast treated water.

  According to the present invention, since it is possible to sterilize cleaning seawater, fireproof seawater or eductor driving water without adding a new water treatment device, it is possible to implement the ballast management convention at low cost. Without being limited to a cargo ship, it can be widely used as a ballast-treated water circulation system for various ships.

DESCRIPTION OF SYMBOLS 1 Ship 1a Starboard 1b Port 1c Ship bottom 1d Double bottom space 1e Stern 2 Circulation system (Embodiment 1)
2b Ballast piping system 2c Fire fighting / bilge piping system 3 Circulation system (Embodiment 2)
3b Ballast piping system 3c Fire fighting / bilge piping system 11 Seawater suction box 12 Discharge port 13 Seawater suction box 14 Discharge port 20 Ballast pump 30 Water treatment device 40 Ballast tank 50 Fire fighting / bilge system pump 60 Cargo hold 61 Cargo hold bilge reservoir 70 Stern aquarium 80 Ballast eductor 90 Fire and bilge eductor 50b Fire and bilge pump 50z Fire and miscellaneous pump

Claims (4)

It is a circulation system for ship ballast water in a ship having a ballast seawater suction box, a ballast pump, a water treatment device, a ballast tank, a firefighting / bilge pump, a cargo hold, and a stern aquarium. And
A pipe provided with an on-off valve for sequentially connecting the ballast seawater suction box, the ballast pump, the water treatment device, and the ballast tank;
A pipe provided with an on-off valve for sequentially connecting the ballast tank, the ballast pump, and the ballast discharge port;
A branch point provided in a pipe connecting the water treatment device and the ballast tank, a pipe provided with an on-off valve for sequentially connecting the fire fighting / bilge system pump and the cargo hold;
A pipe provided with an on-off valve for sequentially connecting the cargo hold, the fire fighting / bilge system pump and the fire fighting / bilge system discharge port;
A branch point provided in a pipe connecting the water treatment device and the ballast tank, and a pipe provided with an on-off valve connecting the stern aquarium;
A pipe provided with an on-off valve for sequentially connecting the stern aquarium, the firefighting / bilge system pump and the firefighting / bilge system outlet;
A branch point provided in a pipe connecting the firefighting / bilge system pump and the cargo hold and a pipe provided with an on-off valve connecting the ballast tank;
A system for circulating ballast water of a ship characterized by comprising: It has a ballast eductor, a fire and bilge system eductor, and a fire and bilge system seawater inlet.
A branch point provided in a pipe connecting the ballast pump and the water treatment device, and a pipe provided with an on-off valve connecting the drive side of the ballast eductor;
A pipe provided with an on-off valve for connecting the suction side of the ballast tank and the ballast eductor;
A pipe provided with an on-off valve for connecting the discharge side of the ballast system eductor and the ballast system drain; and
A pipe provided with an on-off valve for connecting the firefighting / bilge system seawater inlet and the upstream side of the firefighting / bilge system pump;
A branch point provided in a pipe connecting the downstream side of the firefighting / bilge system pump and the cargo hold and a pipe provided with an on-off valve connecting the driving side of the firefighting / bilge system eductor;
A pipe provided with an on-off valve for connecting the cargo hold and the suction side of the fire fighting / bilge system eductor;
A pipe provided with an open / close valve for connecting the discharge side of the fire fighting / bilge system eductor and the fire fighting / bilge system drainage port;
The ballast treated water circulation system for a ship according to claim 1, wherein   The system for circulating ballast water in a ship according to claim 2, further comprising a pipe provided with an on-off valve for connecting the discharge side of the fire fighting / bilge-type eductor and the ballast tank.   The said water treatment apparatus kills one or both of the aquatic organisms or bacteria contained in seawater, The circulation system of the ballast-treated water of the ship in any one of the Claims 1 thru | or 3 characterized by the above-mentioned.

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