JP2010013098A - Ballast treatment water supply ship - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ballast treatment water supply ship for supplying a ship having no ballast water treatment device with clean ballast water (ballast treatment water) in which aquatic organisms and bacteria are previously sterilized into predetermined values or lower. <P>SOLUTION: The ballast treatment water supply ship 11 has a water intake means for taking ballast water, and a treatment device 4 for sterilizing aquatic organisms and bacteria in the ballast water taken by the water intake means, but its has no storage tank for storing treated water treated by the treatment device 4. It includes a supply means for supplying the treated water treated by the treatment device 4, and an inspection system for sampling the ballast treatment water after treated by the treatment device and inspecting the existing number of the aquatic organisms and the bacteria. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a ballast-treated water supply ship, and more particularly, to supply clean ballast water (ballast-treated water) in which aquatic organisms and bacteria have been previously killed to a ship that does not have a ballast water treatment device. The present invention relates to a ballast treated water supply ship that can be used.

  Ballast water drained from cargo ships such as container ships is mixed with aquatic organisms and bacteria that live in the port where the water was taken. As a result, the destruction of ecosystems, such as the replacement of existing species with species that did not originally live in the sea, has become serious.

  Against this background, a convention for the regulation and management of ship ballast water and sediment (hereinafter referred to as the Convention) was adopted at the diplomatic meeting of the International Maritime Organization (IMO), and the obligation to implement ballast water management. Is scheduled to be applied from 2009 and after construction ships.

For this reason, it is required that the ship can drain clean ballast water that satisfies the convention.
JP 2004-160437 A (Configuration of ozone treatment) JP 2003-200156 A (Structure of slit plate) US Pat. No. 6,125,778 (configuration in which ozone gas is injected into the ballast tank)

  In order to be able to drain clean ballast water that satisfies the convention from the ship, a processing device is installed in the ship to kill the aquatic organisms and bacteria in the water so that they are below the specified value. A method of treating ballast water during water intake is conceivable.

  However, in the case of an existing ship, since existing piping and devices take up space, it may be difficult to secure a space for newly installing a processing apparatus inside the ship.

  Moreover, the treatment of ballast water by the treatment device is usually performed in the process of water injection or drainage of ballast water, but since the water injection and drainage of ballast water is performed only when entering or leaving the port, the treatment device also enters the port. It will only operate at the time of departure or departure from the port, and the actual operation period is only a very short time, so it is necessary to secure a space for installing a new processing equipment inside the ship and to perform further repair work. Compared to this, a lot of labor, time and cost are required, and there is a problem that becomes a big burden for the owner of the existing ship.

  Also, in view of the current situation in which a large amount of ballast water is being discharged at the ports of each country before the above convention is applied, aquatic organisms and bacteria are sometimes discharged from ships regardless of the time when the convention is applied. Needless to say, it is desirable to drain clean ballast water that has been killed until the value falls below a predetermined value.

  Therefore, the present invention supplies clean ballast water (ballast treated water) that has been killed in advance until the aquatic organisms and bacteria fall below a predetermined value to a ship that does not have a ballast water treatment apparatus. It is an object to provide a ballast-treated water supply ship that can be used.

  Other problems of the present invention will become apparent from the following description.

  The above problems are solved by the following inventions.

(Claim 1)
A storage tank for storing the treated water treated by the treatment device, comprising: water intake means for taking in the ballast water; and a treatment device for killing aquatic organisms and bacteria in the ballast water taken by the water intake means. There is no ballast treatment water supply ship
Supply means for supplying treated water treated by the treatment device;
A ballast-treated water supply ship comprising an inspection system for sampling the ballast-treated water after being treated by the treatment device and examining the survival number of aquatic organisms and bacteria.

(Claim 2)
The said supply means supplies the treated water processed by the said processing apparatus which kills the aquatic organisms and bacteria in ballast water to a supply object ship, The ballast treated water supply ship of Claim 1 characterized by the above-mentioned.

(Claim 3)
3. The ballast treatment according to claim 1, wherein the supply unit includes a treated water supply pipe provided with a plurality of hose connection ports having different diameters and / or a plurality of hose connection ports having different connection structures. Water supply ship.

(Claim 4)
The said hose connection port is arranged in the said treated water supply pipe | tube toward both the starboard side and port side of a ship body, The ballast treated water supply ship in any one of Claims 1-3 characterized by the above-mentioned.

(Claim 5)
The treatment apparatus includes ozone injection means for injecting ozone into the ballast water taken by the water intake means to kill aquatic organisms and bacteria, and surplus ozone in the ballast water into which ozone has been injected by the ozone injection means. It has a deaeration means to deaerate, The ballast processing water supply ship in any one of Claims 1-4 characterized by the above-mentioned.

(Claim 6)
The treatment apparatus includes a slit plate that kills aquatic organisms and bacteria by a shearing force generated when the ballast water taken by the water intake means is passed through a slit-shaped opening. The ballast processing water supply ship in any one of 1-5.

(Claim 7)
The said supply means supplies treated water to this supply object ship by the hose connected between the intake pipes provided in the said supply object ship, The any one of Claims 1-6 characterized by the above-mentioned. Ballast processing water supply ship.

  According to the present invention, clean ballast water (ballast treated water) that has been killed in advance until the aquatic organisms and bacteria fall below a predetermined value is supplied to a ship that does not have a ballast water treatment device. A ballast-treated water supply ship that can be provided can be provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view showing a part of an example of a ballast treated water supply ship according to the present invention.

  Inside the hull 2 of the ballast-treated water supply ship 1, a processing device 4 for processing ballast water taken from a sea chest 3 provided near the bottom of the ship, and ballast water processed by the processing device 4 are stored. A storage tank 5 is provided. Reference numeral 21 denotes a navigation screw.

  Here, seawater, fresh water, etc. are used for ballast water, and seawater is preferably used in the present invention. Such ballast water includes zooplankton, phytoplankton, aquatic organisms such as microorganisms and bacteria such as Escherichia coli that inhabit the taken water area.

  The treatment device 4 only needs to be able to kill aquatic organisms and bacteria in the ballast water taken from the sea chest 3 to the extent that the convention is satisfied. For example, heat, ultrasonic waves, ultraviolet rays, silver ions, electricity, etc. Physical treatment method used, mechanical treatment method using filtration, shearing force, cavitation, etc., chemical treatment method using ozone, oxygen removal, chlorine, etc., a combination of these two or more treatment methods A processing method etc. are mentioned.

  An example of the processing apparatus 4 preferable in the present invention will be described with reference to FIG. 2, but the processing apparatus 4 is not limited to what is illustrated.

  FIG. 2 is a block diagram showing an example of the treatment device 4, 41 is a filter, 42 is a water intake pump, 43 is a treatment line, 44 is an ozone mixing device, 45 is an ozone generator, 46 is a slit plate, and 47 is deaerated. A tank 48 is an exhaust ozone decomposing apparatus.

  By the operation of the water intake pump 42, ballast water is taken into the processing device 4 from the sea chest 3, and in the process of being transferred through the processing line 43, processing for killing aquatic organisms and bacteria is performed.

  The filter 41 is provided to remove impurities from the ballast water introduced into the processing device 4 by the operation of the water intake pump 42. Since the aquatic organisms and bacteria are killed by the ozone injection by the subsequent ozone mixing device 44 and the slit plate 46, the filter 41 only needs to remove relatively large contaminants such as underwater dust.

  The ozone mixing device 44 mixes the ozone generated by the ozone generator 45 into the ballast water transferred through the treatment line 43 by the operation of the water intake pump 42 to strongly aquatic aquatic organisms and bacteria in the ballast water. Chemically killed by action. Here, although the example using the gas-liquid mixing apparatus (ozone injector) which gas-liquid mixes the ballast water and ozone in the processing line 43 is shown as the ozone mixing apparatus 44, ozone of predetermined concentration is shown in ballast water. If it can mix, it will not specifically limit. For example, a static mixer such as a static mixer or a line mixer can be used.

  The ozone generator 45 includes, for example, a compressor 451, an oxygen generator 452, and an ozone generator 453, and ozone generated through the oxygen generator 452 and the ozone generator 453 passes through an ozone supply line 454 by the compressor 451. The ozone mixing device 44 is supplied with ozone of a predetermined concentration in the ballast water.

  The slit plate 46 passes ballast water mixed with ozone by the ozone mixing device 44 at a high pressure, and mechanically destroys and kills aquatic organisms and bacteria in the ballast water by the shearing force generated at that time. To do.

  Details of the slit plate 46 are shown in FIGS.

  3 is a cross-sectional view showing the slit plate 46 in the processing line 43, and FIG. 4 is a cross-sectional view taken along line (iv)-(iv) in FIG. 3. As shown in FIG. Is disposed so as to block the entire flow path of the processing line 43.

  A plurality of slit-shaped openings 461 are formed in the slit plate 46. The opening width of the opening 461 is set to a width that can sufficiently exert the effect of destroying aquatic organisms and bacteria in the ballast water by a shearing force, and is preferably 200 μm to 500 μm. Thereby, aquatic organisms of about 10 μm can be killed by a shearing phenomenon that occurs when ballast water is passed.

  Ballast water transferred through the treatment line 43 is pumped at a high pressure toward the slit plate 46 by the operation of the water intake pump 42. The pumped ballast water tries to pass through the slit-like opening 461 of the slit plate 46 in a turbulent state, and a shear phenomenon occurs when passing through the opening 461, thereby destroying aquatic organisms and bacteria in the ballast water. And killed.

  In order to exhibit the effect of destruction and killing due to the shearing force, the slit plate 46 is preferably attached in a direction orthogonal to the flow direction of the ballast water.

  In addition, although the slit plate 46 is attached intimately in the processing line 43, although not shown, it is preferable that the slit plate 46 is interposed in the processing line 43 by a flange or the like so that it can be easily removed and cleaned.

  The shape of the plurality of slit-like openings 461 formed in the slit plate 46 is preferably a long and narrow rectangular shape as illustrated in FIG. The number of the openings 461 is not particularly limited, and is appropriately set according to the pressure loss of the ballast water and the occurrence of the shear phenomenon.

  Although all the openings 461 may be formed to have the same length, as shown in FIG. 5, the center portion may be long and the end portion may be shortened according to the cross-sectional shape of the processing line 43. Good.

  Further, the shape of each opening 461 is not limited to a linear shape, and may be formed in a curved shape such as an arc as shown in FIG.

  Furthermore, the number of slit plates 46 disposed in the processing line 43 is not limited to one, and a plurality of sheets (46A, 46B) may be disposed at intervals as shown in FIG. . The number of sheets is not particularly limited as long as it is plural.

  When a plurality of slit plates 46A and 46B are provided, it is preferable that the width, size, number, and shape of the openings 461 of the slit plates 46A and 46B are made different. It is also preferable to arrange the openings 461 of the adjacent slit plates 46A and 46B differently, for example, so that the length directions of the openings 461 of the slit plates 46A and 46B are orthogonal to each other. By these, a shear phenomenon can be exhibited more effectively and the destruction and killing effects of aquatic organisms and bacteria in the ballast water can be further improved.

  The ballast water after passing through the slit plate 46 is sent to the deaeration tank 47, and undissolved surplus ozone in the ballast water is deaerated. In the deaeration tank 47, partition walls 471 standing from the bottom of the tank to the front of the tank ceiling and partition walls 472 extending from the tank ceiling to the front of the tank bottom alternately The ballast water is formed in parallel, and the upward flow path and the downward flow path are alternately formed. As a result, the ballast water introduced into the deaeration tank 47 alternately passes through the upward flow path and the downward flow path, and in the process, surplus ozone mixed in the form of bubbles in the ballast water is removed from the ballast water. It is removed and stored in the exhaust ozone chamber 473 at the upper part of the tank.

  Exhaust ozone accumulated in the exhaust ozone chamber 473 is sent from the deaeration tank 47 to the exhaust ozone decomposing device 48 where it is decomposed and discharged, for example, from the deck to the outside of the ship.

  In this way, the ballast water that has passed through the treatment device 4 becomes clean ballast water (ballast treatment water) that has been killed so that aquatic organisms and bacteria are below a predetermined value.

  In the embodiment shown in FIG. 2, ozone is mixed in the ballast water by the ozone mixing device 44 and then processed by passing through the slit plate 46. However, the present invention is not limited to this, and the slit plate 46 is allowed to pass. You may comprise so that ozone may be mixed with the later ballast water by the ozone mixing apparatus 44, and may be processed.

  Ballast water treated by passing through the treatment device 4 is sent to the storage tank 5 and stored in the storage tank 5. In the stored ballast water, since excess ozone is removed by the deaeration tank 47, there is no problem of corroding the tank.

  Ballast treated water stored in the storage tank 5 is supplied to inject water into a ballast tank of a ship (supply target ship) such as a container ship anchored at a port. For this reason, a supply pump 6 is provided in the hull 1 to take in the ballast treated water from the storage tank 5 and supply it to the ship to be supplied, and the treated water supply line 7 is activated by the operation of the supply pump 6. It comes to be supplied through. One end of the treated water supply line 7 is extended on the deck 22 to form a treated water supply pipe 8 so that the ballast treated water in the storage tank 5 can be supplied from the deck 22 to the supply target ship.

  The treated water supply line 7 is provided with a flow rate adjusting valve 9 and a flow meter 10.

  FIG. 8 is a perspective view showing details of the treated water supply pipe 8.

  The treated water supply pipe 8 is connected to the treated water supply line 7 in the hull 2, and stands on the rising pipe 81 standing on the deck 22 and on the starboard side and port side of the hull 2 from the upper end of the rising pipe 81. The horizontal pipe 82 branched so as to cross the deck 22 and two vertical pipes 83 branched from the vicinity of both ends of the horizontal pipe 82 and extending in parallel toward the bow side.

  Hose connection ports 84 to 87 that open toward the starboard side and the port side of the hull 2 are provided at both ends of the horizontal pipe 82 and in the middle of each vertical pipe 83, respectively. The hose connection ports 84 to 87 are opened and closed by opening / closing valves 841 to 871, respectively.

The hose connection ports 84 to 87 do not have the same diameter, but include ones having different diameters. Here, the diameter gradually decreases as it goes from the hose connection port 84 to the hose connection port 87, and is arranged so as to be symmetrical on the starboard side and the port side. For this reason, it is connectable with the connection part of the hose of several types of diameters. Further, since the starboard side and the port side are arranged so as to be bilaterally symmetric, they are connected to the connecting portions of the hose having a plurality of calibers on both the starboard side and the port side of the ballast treated water supply ship 1. Is possible. However, the diameters of all the hose connection ports 84 to 87 on the starboard side and the port side may be different. The number of hose connection ports may be different on the starboard side and the port side.

  When the connection part of the hose on the supply target ship side has various structures, the plurality of hose connection ports provided in the treated water supply pipe 8 correspond to the structure of the connection part of the hose on the ship side. Thus, the structures of the connecting portions may be different.

  In addition, the treated water supply pipe 8 is provided with a plurality of hose connection ports having different diameters and a plurality of hose connection ports having different structures of the connection portions, and can correspond to connection portions of hoses having various diameters and various structures. You may comprise as follows.

  FIG. 9 shows a state in which the ballast treated water is supplied to the supply target ship by the ballast treated water supply ship 1.

  After laying the ballast treated water supply ship 1 on the supply target ship 100 that requires clean ballast water, the supply target is supplied to any of the hose connection ports provided in the treated water supply pipe 8 of the ballast treated water supply ship 1. A water intake hose 101 extending from the ship 100 side is connected.

  In the supply target ship 100, a water intake pipe 103 having a water intake hose 101 is provided in a hull 102, and the water intake pipe 103 takes in ballast water from a sea chest 105 by a sub water injection line 104 provided in the hull 102. The ballast treated water from the ballast treated water supply ship 1 is poured into a ballast tank (not shown) by the operation of the ballast pump 107 provided in the main water poured line 106. It is like that.

  The supply amount of ballast treated water from the ballast treated water supply ship 1 to the supply target ship 100 is adjusted by a flow rate adjusting valve 9 provided in the treated water supply line 7 as shown in FIG.

  Selection of the ballast water injection source in the supply target ship 100 such as whether the ballast water is injected from the sea chest 105 or supplied from the ballast-treated water supply ship 1 is performed by an on-off valve 108 provided in the main injection line 106. This is performed by selective opening / closing control of an opening / closing valve 109 provided in the auxiliary water injection line 104.

  As described above, since the ballast water can be poured into the ballast tank of the supply target ship 100 by the ballast treated water supply ship 1, the supply target ship 100 is provided with the intake pipe 103 having the intake hose 101. Is connected to the existing main water injection line 106 via the on-off valves 108 and 109, so that a large-scale renovation work as in the case of newly installing a treatment apparatus can be eliminated.

  As shown in FIG. 1, the treated water supply line 7 is provided with a flow meter 10 and can measure the flow rate of the supplied ballast treated water. As shown in FIG. 1, for example, in the steering chamber of the ballast water supply ship 1, a display unit 10 a that displays information such as an integrated flow rate and an estimated supply completion time based on the measurement result of the flow meter 10 is provided. .

  Accordingly, a necessary amount of ballast water can be supplied to the supply target ship 100, and the information can be confirmed by the display unit 10a. Further, it is possible to charge according to the measurement result of the flow meter 10. Such billing information is also displayed on the display unit 10a.

  In the above aspect, the ballast treated water treated by the treatment device 4 is stored in the storage tank 5, and the ballast treated water in the storage tank 5 is supplied to the supply target ship 100. According to this aspect, since the ballast treated water can be generated and stored, for example, the ballast treated water is generated and prepared in advance according to a schedule such as a port call time of the supply target ship 100 and a cargo handling work. It can be quickly supplied when necessary.

  In addition, by sampling the ballast treated water in the storage tank 5 to determine whether the supplied ballast treated water is clean ballast treated water in which aquatic organisms and bacteria have been killed to the extent that the convention is satisfied. It is also possible to check and confirm in advance. Therefore, it can be shown to the supply target ship 100 based on the sampling result that the aquatic organisms and bacteria are clean ballast treated water that has been killed so as to become a predetermined value or less. Ballast treated water can be provided.

  Further, even if the processing capacity of the processing device 4, that is, the amount of ballast processing water generated through the processing device 4 is smaller than the water intake capacity of the ballast pump 107 of the supply target ship 100, it is generated and stored in advance. By supplying the ballast treated water in the storage tank 5, the ballast treated water can be supplied with a supply amount corresponding to the water intake capacity of the ballast pump 107 of the supply target ship 100.

  However, the present invention is not limited to the one having the storage tank 5 as described above, and the storage tank may not necessarily be provided like the ballast treated water supply ship 11 shown in FIG. In this case, the ballast treated water supply ship 11 can be configured to supply the ballast treated water discharged from the treatment apparatus 4 to the supply target ship 100 as it is from the treated water supply pipe 8. 10, the same reference numerals as those in FIG. 1 denote the same components, and detailed description thereof will be omitted here.

  According to this aspect, since the ballast treated water supply ship 11 does not need to store ballast treated water therein, the treatment device 4, the supply pump 6, the treated water supply line 7, and the treated water supply pipe 8 can be installed. Compared to the case of having a storage tank, it is possible to provide a compact ship as compared with the case of having a storage tank, and there is an advantage that a ballast-treated water supply ship having high mobility can be provided in a narrow harbor.

  In the case of the ballast treated water supply ship 11 that does not have such a storage tank, the treatment effect is confirmed by sampling the ballast treated water after being treated by the treatment device 4 and examining the number of living aquatic organisms and bacteria. It is preferable to provide an inspection system for performing the inspection so that the inspected ballast water can be supplied to the ship 100 to be supplied.

  In any of the ballast treated water supply ships 1 and 11, the treatment device 4, the supply pump 6, and the treated water supply line 7 may be installed on the deck 22.

  Further, the supply of ballast treated water from the ballast treated water supply ships 1 and 11 is not limited to a mode in which a hose extending from the supply target ship side is connected to the treated water supply pipe 8. For example, although not shown, instead of the configuration of the treated water supply pipe 8 included in the ballast treated water supply ships 1 and 11, or in addition to the treated water supply pipe 8, ballast treated water sent from the treated water supply line 7 is supplied. A hose for supplying to the target ship may be provided, and the hose may be extended to the supply target ship so as to be connectable to a water intake or the like on the ship side.

  Furthermore, as another embodiment of the processing device 4, a membrane device such as an MF membrane or a UF membrane that can be removed by filtering aquatic organisms and bacteria can be used. Further, as shown in FIG. 2, an ozone mixing device 44, an ozone generator 45, and a degassing tank 47 may be arranged at the subsequent stage of the membrane device to perform ozone injection and excess ozone deaeration.

  The ballast treated water supply ships 1 and 11 described above are examples of ships that can navigate independently by the screw 21, but the present invention is not limited to this. Therefore, the present invention may be a barge ship that does not have an engine for autonomous navigation.

The side view which partially cuts and shows the ballast process water supply ship which concerns on this invention Configuration diagram showing an example of a processing apparatus Sectional view showing slit plate in processing line (Iv)-(iv) cross-sectional view of FIG. Sectional drawing which shows the other example of opening of a slit board Sectional drawing which shows the further another example of opening of a slit board Sectional drawing which shows the other example of the slit board in a processing line Perspective view showing details of treated water supply pipe The figure which shows a mode that ballast processing water is supplied to a ship with a ballast processing water supply ship The side view which cuts and shows the ballast processing water supply ship which concerns on another aspect partially

DESCRIPTION OF SYMBOLS 1, 11: Ballast treatment water supply ship 2: Hull 21: Screw 22: Deck 3: Sea chest 4: Treatment device 41: Filter 42: Intake pump 43: Treatment line 44: Ozone mixing device 45: Ozone generator 451: Compressor 452: Oxygen generator 453: Ozone generator 454: Ozone supply line 46, 46A, 46B: Slit plate 461: Opening 47: Degassing tank 471, 472: Partition wall 473: Exhaust ozone chamber 48: Exhaust ozone decomposition device 5: Storage tank 6: Supply pump 7: Treated water supply line 8: Treated water supply pipe 81: Rising pipe 82: Horizontal pipe 83: Vertical pipe 84-87: Hose connection port 841-871: Open / close valve 9: Flow rate adjusting valve 10: Flow meter 10a: Display unit

Claims (7)

A storage tank for storing the treated water treated by the treatment device, comprising: water intake means for taking in the ballast water; and a treatment device for killing aquatic organisms and bacteria in the ballast water taken by the water intake means. There is no ballast treatment water supply ship
Supply means for supplying treated water treated by the treatment device;
A ballast-treated water supply ship comprising an inspection system for sampling the ballast-treated water after being treated by the treatment device and examining the survival number of aquatic organisms and bacteria.   The said supply means supplies the treated water processed by the said processing apparatus which kills the aquatic organisms and bacteria in ballast water to a supply object ship, The ballast treated water supply ship of Claim 1 characterized by the above-mentioned.   3. The ballast treatment according to claim 1, wherein the supply unit includes a treated water supply pipe provided with a plurality of hose connection ports having different diameters and / or a plurality of hose connection ports having different connection structures. Water supply ship.   The said hose connection port is arranged in the said treated water supply pipe | tube toward both the starboard side and port side of a ship body, The ballast treated water supply ship in any one of Claims 1-3 characterized by the above-mentioned.   The treatment device includes ozone injection means for injecting ozone into the ballast water taken by the water intake means to kill aquatic organisms and bacteria, and surplus ozone in the ballast water injected with ozone by the ozone injection means. It has a deaeration means to deaerate, The ballast processing water supply ship in any one of Claims 1-4 characterized by the above-mentioned.   The treatment apparatus includes a slit plate that kills aquatic organisms and bacteria by a shearing force generated when the ballast water taken by the water intake means is passed through a slit-shaped opening. The ballast processing water supply ship in any one of 1-5.   The said supply means supplies treated water to this supply object ship by the hose connected between the intake pipes provided in the said supply object ship, The claim 1 characterized by the above-mentioned. Ballast treatment water supply ship.

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