WO2018190574A1 - Système de traitement d'eau de ballast - Google Patents

Système de traitement d'eau de ballast Download PDF

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Publication number
WO2018190574A1
WO2018190574A1 PCT/KR2018/004063 KR2018004063W WO2018190574A1 WO 2018190574 A1 WO2018190574 A1 WO 2018190574A1 KR 2018004063 W KR2018004063 W KR 2018004063W WO 2018190574 A1 WO2018190574 A1 WO 2018190574A1
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WO
WIPO (PCT)
Prior art keywords
ballast water
main
line
ballast
auxiliary
Prior art date
Application number
PCT/KR2018/004063
Other languages
English (en)
Korean (ko)
Inventor
지석준
김영구
조인태
김창국
이성민
서준우
김민정
이준태
Original Assignee
한라아이엠에스 주식회사
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Application filed by 한라아이엠에스 주식회사 filed Critical 한라아이엠에스 주식회사
Publication of WO2018190574A1 publication Critical patent/WO2018190574A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J4/00—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for
    • B63J4/002—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for for treating ballast water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/70—Treatment of water, waste water, or sewage by reduction
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/008—Originating from marine vessels, ships and boats, e.g. bilge water or ballast water

Definitions

  • the present invention relates to a system for treating ballast water of a ship.
  • the ballast tank system is a method of controlling the amount of ballast water in the ballast tank to reduce the center of gravity of the ship due to the loading and unloading of the cargo and to enable safe navigation.
  • the cargo of the ship is unloaded at the port where the cargo is unloaded. After this, the ship returns with the ballast water from the port where the cargo is unloaded. After that, when loading new cargo, the ballast water is discarded at the loading port, and the cargo is loaded and sailed.
  • ballast water is used as a medium to propagate to other waters such as organisms or pathogens in a specific sea area, and if the ballast water collected in an environment different from that of the sea port is simply discarded, there is a problem of destroying the environment of the sea port. Can be.
  • the present invention is to provide a ballast water treatment system to solve the above problems.
  • the present invention is to provide a ballast water treatment system that can improve the ballast water treatment efficiency of the ballast water treatment system.
  • the present invention provides a system for treating ballast water.
  • a ballast water treatment system and a ballast tank for receiving the ballast water in the inner space;
  • a main ballast water supply line connected to the ballast tank and supplying an external ballast water to the ballast tank;
  • An auxiliary ballast water supply line connected to the main ballast water supply line and supplying a fluid containing an oxidant to the ballast water;
  • a main ballast water discharge line having one end connected to the ballast tank and the other end connected to the main ballast water supply line and discharging the ballast water to the outside in the ballast tank;
  • An auxiliary ballast water discharge line connected to the main ballast water supply line and configured to discharge the ballast water supplied from the main ballast water discharge line and flowing through the main ballast water supply line;
  • And installed in the main ballast water supply line supplied from the ballast water or the ballast tank flowing into the ballast tank from the main ballast water supply line, and flowing through the main discharge line, thereby partially removing the main ballast water supply line.
  • a TRO sensor for measuring an oxidant concentration of the ballast water discharged to the outside, wherein the TRO sensor is installed in the main ballast water supply line, and the auxiliary ballast water discharge line is connected to the auxiliary ballast water supply line.
  • a common pipe through which the ballast water supplied to the ballast tank or the ballast water discharged to the outside from the ballast tank flows may be formed.
  • a branching line flows by branching a portion of the ballast water flowing through the common pipe;
  • An inflow line for supplying a part of the ballast water flowing in the branch line to the TRO sensor;
  • an inflow pump installed in the branch line to supply the ballast water flowing through the branch line to the TRO sensor.
  • the inlet valve is installed in the inlet line; A branch valve installed at the branch line; And a backflow prevention valve positioned at a rear end of the branch valve and preventing a backflow of the ballast water supplied to the common pipe after flowing through the branch line.
  • the discharge line is connected to the TRO sensor, the ballast water flowing into the TRO sensor is discharged; It may further include a storage container connected to the discharge line for storing the ballast water supplied from the discharge line.
  • one end is connected to the discharge line, the other end and the re-inlet line is connected to the common pipe;
  • a chamber installed on the reflow line and temporarily storing the ballast water supplied from the discharge line;
  • a reflow pump installed in the reflow line to supply the ballast water flowing through the discharge line or the ballast water stored in the chamber to the common pipe.
  • the auxiliary discharge valve is installed in the auxiliary ballast discharge line;
  • the main ballast water supply line may further include a main supply valve installed in the front end of the ballast tank.
  • a main supply valve is installed at a point where the main ballast water supply line and the auxiliary ballast water discharge line are connected to regulate a flow rate of the ballast water or the ballast water flowing through the main ballast water supply line. ; And an auxiliary supply valve installed in the auxiliary ballast water supply line to adjust a flow rate of the electrolyzed ballast water supplied to the main ballast water supply line.
  • the filter is installed in the main ballast water supply line to filter the ballast water passing through the main ballast water supply line;
  • An electrolytic cell for electrolyzing the ballast water flowing in the auxiliary supply line;
  • a main pump installed at the front end of the filter in the main ballast water supply line and supplying the ballast water to the ballast tank;
  • an auxiliary pump installed in the auxiliary ballast water supply line to supply the ballast water to the electrolytic cell.
  • the reducing agent supply member may be supplied to the main ballast water discharge line by mixing a reducing agent having a different concentration.
  • the reducing agent supply member when the ballast water is discharged from the common pipe, receives the oxidant concentration value measured by the TRO sensor to adjust the amount of the reducing agent supplied to the main ballast water discharge line. It may further include a controller for adjusting.
  • the auxiliary ballast water supply line may further include a strainer for filtering the ballast water flowing through the auxiliary ballast water supply line.
  • the oxidant concentration of the ballast water flowing into the ballast tank or the ballast water flowing out of the ballast tank is measured by a TRO sensor installed in a common pipe, thereby improving the efficiency of the ballast water treatment system.
  • TRO sensors by measuring the oxidant concentration of the ballast water flowing into the ballast tank or the ballast water flowing out of the ballast tank with a TRO sensor installed in a common pipe, two or more TRO sensors do not provide a ballast The manufacturing cost of the water treatment system can be reduced.
  • FIG. 1 is a view schematically showing a ballast water treatment system according to an embodiment of the present invention.
  • FIG. 2 is a view schematically showing a portion where a common pipe is formed in the ballast water treatment system of FIG. 1.
  • FIG. 3 is a view showing a part of a ballast water treatment system according to another embodiment of the present invention.
  • FIG. 4 is a view illustrating a portion in which a common pipe and a TRO sensor are installed in the ballast processing system of FIG. 1.
  • FIG. 5 is a view schematically showing a configuration used when the ballast water flows into the ballast tank of the ballast water treatment system of FIG.
  • FIG. 6 is a view schematically illustrating a configuration in which ballast water is discharged from a ballast tank in the ballast water treatment system of FIG. 1.
  • FIG. 7 is a view schematically showing a state in which the ballast water flows into the ballast tank and measures the concentration of the oxidant by the TRO sensor in the ballast water treatment system.
  • FIG. 8 is a view schematically showing a state in which the ballast water flows and the concentration of the oxidant by the TRO sensor when the ballast water is discharged from the ballast tank to the outside of the ballast water treatment system.
  • the present invention provides a ballast water treatment system 1 for treating the ballast water flowing into the ballast tank 40 of the ship or the ballast water discharged.
  • the ballast water treatment system 1 may sterilize the ballast water supplied from the port and flow it into the ballast tank 40.
  • the ballast water treatment system 1 may neutralize the ballast water and discharge it to the outside when the ballast water is discharged from the ballast tank 40.
  • ballast water the fluid in the port flowing into the ballast tank 40
  • the ballast water is defined by the term referring to all ballast water supplied from the sea chest.
  • the ballast water is defined in terms of ballast water contained in the ballast tank 40 or ballast water stored in the ballast tank 40 and discharged to the outside.
  • ballast water may be seawater, brackish water or fresh water.
  • the ballast water will be described using seawater as an example.
  • ballast water is not limited to seawater.
  • FIG. 1 is a view schematically showing a ballast water treatment system according to an embodiment of the present invention
  • FIG. 2 is a view schematically showing a portion in which a common pipe is formed in the ballast water treatment system of FIG. 1
  • FIG. 4 is FIG. 1.
  • FIG. 5 is a view illustrating a portion in which a common pipe and a TRO sensor are installed in the ballast treatment system of FIG. 1
  • FIG. 5 is a diagram schematically illustrating a configuration used when the ballast water flows into the ballast tank in the ballast water treatment system of FIG. 1
  • FIG. 1 is a view schematically showing a configuration in which the ballast water of the ballast water treatment system of the present invention is discharged from the ballast tank.
  • the ballast water treatment system 1 is an auxiliary ballast water supply line 10, the main ballast water supply line 20, an auxiliary sea chest 11, an auxiliary pump 12, strainer 15, pressure sensor 14, electrolyzer 16, main sea chest 21, main pump 22, filter 23, TRO sensor 24, ballast tank 40, Main supply valve 41, main ballast water discharge line 50, bypass pipe 60, reducing agent supply member 70, auxiliary ballast water discharge line 80, auxiliary discharge valve 81 and the controller 95 It includes.
  • the auxiliary ballast water supply line 10 receives the ballast water from the auxiliary sea chest 11.
  • the auxiliary ballast water supply line 10 may be located in the ship.
  • the auxiliary ballast water supply line 10 supplies the ballast water to the main ballast water supply line 20 which will be described later.
  • the diameter of the auxiliary ballast water supply line 10 may be provided smaller than the diameter of the main ballast water supply line 20 to be described later.
  • the diameter of the auxiliary ballast water supply line 10 may be provided to be n times smaller than the diameter of the main ballast water supply line 20.
  • n may be one of positive integers greater than one.
  • n may be a positive integer in the range of 7 to 11.
  • the auxiliary ballast water supply line 10 may supply a fluid containing oxidant to the ballast water flowing through the main ballast water supply line 20.
  • the oxidant may supply an oxidant obtained by electrolyzing external ballast water.
  • drugs such as ozone or fungicides.
  • the present invention will be described taking an example of supplying an oxidizing agent obtained by electrolysis of ballast water.
  • the present invention is not limited thereto, and may be applied to a method of supplying chemicals or supplying ozone through a separate device to the auxiliary ballast water supply line 10.
  • the auxiliary ballast water supply line 10 may supply the ballast water electrolyzed in the electrolytic cell 16 to the main ballast water supply line 20.
  • the auxiliary ballast water supply line 10 may supply to the main ballast water supply line 20 ballast water having a sterilant which is electrolyzed to the ballast water passing through the filter 23 to be described later.
  • An auxiliary supply valve 31 may be installed in the auxiliary ballast water supply line 10.
  • the auxiliary supply valve 31 may be installed at the rear end of the electrolytic cell 16 to be described later.
  • the auxiliary supply valve 31 may adjust the amount of ballast water supplied from the auxiliary ballast water supply line 10 to the main ballast water supply line 20.
  • the auxiliary sea chest 11 may introduce external ballast water into the ship.
  • the auxiliary sea chest 11 supplies the ballast water to the auxiliary ballast water supply line 10.
  • the auxiliary sea chest 11 may be installed at the side of the bow or the stern of the ship.
  • the secondary sea chest 11 may be located in the non-explosion-proof area A2 in the ship.
  • the non-explosion-proof area A2 of a ship means the place which is not the explosion-proof area A1 of a ship.
  • the explosion-proof area (A1) of a ship is the area
  • ballast processing system 10 of this invention can be installed in a non-explosion-proof ship.
  • both the first sea chest 11 and the second sea chest 21 may be installed in a non-explosion-proof area.
  • the auxiliary pump 12 may supply the ballast water supplied from the auxiliary sea chest 11 to the electrolytic cell 16.
  • the auxiliary pump 12 may be installed in the auxiliary ballast water supply line 10.
  • the capacity of the auxiliary pump 12 may be provided smaller than the capacity of the main pump 22 described later.
  • the capacity of the auxiliary pump 12 can be provided with a pump according to the diameter of the auxiliary ballast water supply line 10.
  • the auxiliary sea chest 11, the strainer 16, the auxiliary pump 12, the flow rate control unit 13, and the electrolytic cell 16 may be sequentially installed.
  • Pressure sensors 14 may be installed at the front and rear ends of the strainer 6, respectively.
  • the strainer 15 may filter the ballast water flowing through the auxiliary ballast water supply line 10. Strainer 15 can filter large foreign matter in the ballast water.
  • the strainer 15 may be provided as a mesh type wire mesh having a predetermined interval therein.
  • the strainer 15 may be installed in the auxiliary ballast water supply line 10.
  • the strainer 15 may be installed at the front end or the rear end of the auxiliary pump 12.
  • the strainer 15 is provided to filter the foreign matter inside the ballast water flowing in to improve the efficiency of the electrolysis process of the electrolytic cell 16 to be described later.
  • the pressure sensor 14 can measure the pressure of the ballast water.
  • the pressure sensor 14 may be provided in plural. As an example, the pressure sensor 14 may be installed at the front and the rear of the strainer 15, respectively.
  • the pressure sensor 14 may measure the pressure of the ballast water before passing through the strainer 15 and the pressure of the ballast water passing through the strainer 15.
  • the pressure sensor 14 may measure the state of the ballast water before passing through the strainer 15 and the ballast water pressure after passing through, respectively, to filter foreign matter inside the ballast water.
  • the electrolyzer 16 may electrolyze the incoming ballast water.
  • the electrolyzer 16 may electrolyze the ballast water to generate sterilization components.
  • the electrolyzer 16 may produce a bactericidal component, such as sodium hypochlorite.
  • the sterilization component generated through the electrolyzer 16 may then be supplied to the main ballast water supply line 20 to remove microorganisms in the water inside the ballast water flowing through the main ballast water supply line 20.
  • microorganisms are formed inside the ballast water flowing through the main ballast water supply line 20 with oxidants of HOCl, OCl-, HOBr, OBr-, O 3 , and H 2 O 2 formed on the electrode surface of the electrolytic cell 16. Can be removed.
  • the electrolyzer 16 may be installed in the auxiliary ballast water supply line 10.
  • the electrolyzer 16 may be installed at the rear of the strainer 15.
  • the electrolytic cell 16 may have a plurality of electrodes. The spacing of the electrodes of the electrolytic cell 16 may be 2 to 5 mm.
  • the electrolytic cell 16 is installed in the auxiliary ballast water supply line 10 to supply an oxidant.
  • the oxidant may be supplied to the auxiliary ballast water supply line 10 through a device that generates separate ozone or generates or supplies ozone from the outside.
  • the oxidant may be supplied through a device for supplying a separate germicide.
  • the main ballast water supply line 20 receives ballast water from the main sea chest 21.
  • the ballast water of the main ballast water supply line 20 may be supplied to the ballast tank 40 to be described later after passing through the filter 23.
  • the diameter of the main ballast water supply line 20 may be provided larger than the diameter of the auxiliary ballast water supply line 10.
  • the diameter of the main ballast water supply line 20 may be provided n times larger than the diameter of the auxiliary ballast water supply line 10.
  • n may be one of positive integers greater than one.
  • n may be a positive integer in the range of 7 to 11.
  • the main sea chest 21 may introduce external ballast water into the ship.
  • the main sea chest 21 supplies the ballast water to the main ballast water supply line 20.
  • the main sea chest 21 may be installed on the side of the bow or stern of the ship.
  • the main sea chest 21 may be located in the explosion-proof area A1 in the ship.
  • the explosion-proof area A1 of the ship refers to the area in which the explosion may occur in the ship's internal area.
  • the main pump 22 may supply the ballast water supplied from the main sea chest 21 to the electrolytic cell 16.
  • the main pump 22 may be installed in the main ballast water supply line 20.
  • the capacity of the main pump 22 may be provided larger than that of the auxiliary pump 12.
  • the capacity of the main pump 22 may be provided as a pump according to the diameter of the main ballast water supply line 20.
  • the filter 23 may filter the ballast water passing through the main ballast water supply line 20.
  • the filter 23 receives the ballast water and may filter foreign matter inside the ballast water.
  • the filter 23 may have a housing of the filter 23, and may have a ballast water inflow pipe and a ballast water outlet pipe into which the ballast water flows.
  • the filter 23 part may be installed in the filter 23 housing.
  • the filter 23 part may be configured of a protection net, an inner net, and a perforated net to filter foreign substances in the introduced ballast water.
  • the inside of the filter 23 may have a back washing unit having a back washing nozzle for cleaning the inside of the filter 23.
  • the TRO sensor 24 may measure the oxidant concentration of the ballast water flowing in or the ballast water discharged from the ballast tank 40.
  • the TRO sensor 24 may be installed in the main ballast water supply line 20.
  • the TRO sensor 24 may be installed in the common pipe 90 to be described later.
  • the TRO sensor 24 may be installed in the main ballast water supply line 20 adjacent to the ballast tank 40.
  • the TRO sensor 24 may be installed between the connection point P1 of the auxiliary ballast water supply line 10 and the ballast tank 40 of the main ballast water supply line 20.
  • the TRO sensor 24 has a connection point P1 of the auxiliary ballast water supply line 10 of the main ballast water supply line 20 and the auxiliary ballast water discharge line 80 of the main ballast water supply line 20. ) May be installed between the connected point (P2).
  • one TRO sensor 24 may be provided.
  • the oxidant concentration of the ballast water flowing into the ballast tank 40 or the oxidant concentration of the ballast water discharged from the ballast tank 40 may be measured.
  • the common pipe 90 may be provided with one pipe.
  • the common pipe 90 may be part of the main ballast water supply line 20.
  • the common pipe 90 may be a pipe from the point P1 to which the auxiliary ballast water supply line 10 is connected among the main ballast water supply lines 20 to the point P2 connected to the auxiliary ballast water discharge line 80. .
  • the ballast water flowing into the ballast tank 40 may flow through the common pipe 90. Unlike this, the ballast water discharged from the ballast tank 40 may flow through the common pipe 90.
  • the ballast water passing through the filter 23 flows into the common pipe 40 and may flow into the ballast tank.
  • the main supply valve 41 which will be described later, is opened, and the auxiliary discharge valve 81 is kept closed, so that the ballast water does not flow into the auxiliary ballast water discharge line 80 and flows into the ballast tank 40. can do.
  • the ballast water supplied from the ballast tank 40 may be supplied to the common pipe 90.
  • the ballast water flows sequentially from the ballast tank 40 to the main ballast water discharge line 50, the main ballast water supply line 20, the bypass pipe 60 and the main ballast water supply line 20 It is supplied to the common pipe 90, it can be discharged to the outside through the auxiliary ballast water discharge line (90).
  • the main supply valve 41 to be described later is closed, and the auxiliary discharge valve 81 is kept open, so that the ballast water flows into the auxiliary ballast water discharge line 80 and does not flow into the ballast tank 40. Can be.
  • the auxiliary discharge valve 81 and the main supply valve 41 are not provided, and only one main supply valve 81a may be provided.
  • the main supply valve 81a may be provided as a three-way valve.
  • the ballast water passing through the filter 23 flows into the common pipe 90 and may be introduced into the ballast tank 40.
  • the main supply valve 81 to be described later can adjust the flow of the ballast water so that the ballast water does not flow into the auxiliary ballast water discharge line 80, but flows into the ballast tank (40).
  • the ballast water supplied from the ballast tank 40 may be supplied to the common pipe 90.
  • the ballast water flows sequentially from the ballast tank 40 to the main ballast water discharge line 50, the main ballast water supply line 20, the bypass pipe 60 and the main ballast water supply line 20 It is supplied to the common pipe 90, it can be discharged to the outside through the auxiliary ballast water discharge line (90).
  • one TRO sensor 24 By installing one TRO sensor 24 in the common pipe 90, the oxidant concentration of the ballast water flowing into the ballast tank 40 or the ballast water discharged from the ballast tank 40 can be measured at a time. Through this, a plurality of TRO sensors 24 may not be installed, thereby reducing the cost. In addition, one TRO sensor 24 may be provided in the common pipe 90 to efficiently measure the oxidizer concentration of the ballast water. In addition, it is possible to improve the ballast water treatment efficiency of the ballast water treatment system 1 through the above-described configuration.
  • the TRO sensor 24 measures the oxidizer concentration of the ballast water or the ballast water flowing through the common pipe 90.
  • the ballast water treatment system 1 includes a branch line 27, an inflow line 25, an inflow pump 26, an inflow valve 28, a branch valve 29, and a non-return valve 39. It can have
  • a part of the ballast water flowing through the common pipe 90 may flow. It may branch at one end of the branch line 27.
  • the inflow line 25 may supply a part of the ballast water flowing through the branch line 27 to the TRO sensor 24.
  • One end of the inflow line 25 is connected to the branch line 27, the other end may be connected to the TRO sensor 24.
  • the inflow pump 26 can supply a part of the ballast water flowing through the branch line 27 to the TRO sensor 24.
  • Inlet pump 26 may be installed on branch line 27.
  • An inlet valve 28 may be installed in the inlet line 25.
  • Inlet valve 28 may be provided as an on-off valve.
  • the inlet valve 28 may be opened upon supplying ballast water to the TRO sensor 24.
  • a branch valve 29 may be installed in the branch line 27.
  • Branch valve 29 may be provided as an on-off valve.
  • the non-return valve 39 may be installed in the branch line 27.
  • the non-return valve 39 may be installed at the rear end of the branch valve 29.
  • the non-return valve 39 may prevent the backflow of the ballast water supplied to the common pipe 90 after flowing through the branch line 27.
  • the non-return valve 39 may be provided as a check valve.
  • the ballast water treatment system 1 may further comprise a discharge line 35, a storage vessel 38.
  • the discharge line 35 may be connected to the TRO sensor 24.
  • the discharge line 35 may flow through the ballast water passing through the TRO sensor 24.
  • the discharge line 35 may be connected with the storage container 38.
  • the storage container 38 may be connected with the discharge line 35.
  • the storage container 38 may store the ballast water supplied from the discharge line 35.
  • the storage container 38 may have a receiving space therein. Ballast water filled in the storage container 38 may be discarded after purification.
  • the ballast treatment system 1 may further include a reflow line 34, a chamber 37 and a reflow pump 36.
  • the reflow line 34 may be connected to the discharge line 35, and supply the ballast water of the discharge line 35 to the common pipe 90.
  • the reflow line 34 may supply the ballast water passing through the TRO sensor 24 to the common pipe 90.
  • One end of the reflow line 34 may be connected to the discharge line 35, and the other end thereof may be connected to the common pipe 90.
  • the ballast water supplied to the discharge line 35 may be temporarily stored in the chamber 37.
  • Chamber 37 may be installed on refill line 34.
  • the reflow pump 36 may be provided to supply the ballast water flowing through the reflow line 34 or the ballast water stored in the chamber 37 to the common pipe 90.
  • Reflow pump 36 may be installed downstream of chamber 37 of reflow line 34.
  • the ballast tank 40 may have an empty space therein.
  • the internal space may be a space in which ballast water is accommodated.
  • the ballast water may be seawater, brackish water or fresh water.
  • Ballast tank 40 may be located in the vessel.
  • a plurality of ballast tanks 40 may be provided in the ship.
  • the main supply valve 41 may be installed at the front end of the ballast tank 20 of the main ballast water supply line 20.
  • the main supply valve 41 may be provided as an on / off valve.
  • the main supply valve 41 may be opened when the ballast water is supplied from the main ballast water supply line 20 to the ballast tank 40. Alternatively, the main supply valve 41 may be kept closed when discharging the ballast water from the ballast tank 20.
  • the main ballast water discharge line 50 may be connected to the ballast tank 40 to discharge the ballast water in the ballast tank 40 to the outside during deballasting.
  • One end of the main ballast water discharge line 50 may be connected to the ballast tank 40, and the other end thereof may be connected to the rear end of the main pump 22 of the main ballast water supply line 20.
  • one end of the main ballast water discharge line 50 may be connected to the ballast tank 40, and the other end thereof may be connected to the front end of the main pump 22 of the main ballast water supply line 20.
  • the bypass pipe 60 is a pipe in which the ballast water supplied from the main ballast water discharge line 50 moves.
  • the bypass pipe 60 may be branched from the main ballast water supply line 20.
  • the bypass pipe 60 may branch at the front end of the filter 23 of the main ballast water supply line 20.
  • the bypass pipe 60 may be connected to the rear end of the filter 23.
  • the bypass pipe 60 is a pipe for flowing the ballast water supplied from the main ballast water discharge line 50 without passing through the filter 23.
  • the bypass valve 60 may be provided with a first valve 61 and a second valve 62.
  • the first valve 61 may be installed at a connection point between the bypass pipe 60 and the main ballast water supply line 20.
  • the first valve 61 may be installed at the front end of the filter 23.
  • the first valve 61 may be provided as a three-way valve. The first valve 61 may be adjusted so that the ballast water does not flow into the bypass pipe 60 when the ballast water is supplied from the main ballast water supply line 20 to the ballast tank 40. On the contrary, when the ballast water flows out of the ballast tank 40, the ballast water may be adjusted to flow to the bypass pipe 60 without flowing to the filter 23.
  • the second valve 62 may be installed at a connection point between the bypass pipe 60 and the main ballast water supply line 20.
  • the second valve 62 may be installed at the rear end of the filter 23.
  • the first valve 61 may be provided as a three-way valve. The first valve 61 may be adjusted so that the ballast water does not flow into the bypass pipe 60 when the ballast water is supplied from the main ballast water supply line 20 to the ballast tank 40. On the contrary, when the ballast water flows out of the ballast tank 40, the ballast water may be adjusted to flow to the bypass pipe 60 without flowing to the filter 23.
  • a plurality of on / off valves are provided in the main ballast water supply line 20 and the bypass pipe 60 to adjust the flow of the ballast water.
  • the reducing agent supply member 70 may supply a reducing agent to the ballast water discharged from the ballast tank 40.
  • the ballast water in the ballast tank 40 may contain some oxidant. When the ballast water is discharged to the outside, it can be exported by neutralization. To this end, the reducing agent supply member 70 may supply a reducing agent to the ballast water.
  • the reducing agent supply member 70 may be connected to the main ballast water discharge line 50.
  • the reducing agent supply member 70 may supply a reducing agent based on the oxidant concentration of the ballast water flowing into the ballast tank 40 through the main ballast water supply line 20.
  • the reducing agent supply member 70 may supply the reducing agent to the ballast water flowing through the main ballast water discharge line 50 based on the concentration of the oxidant measured by the TRO sensor 24.
  • the reducing agent supply member 70 includes a first reducing agent supply pipe 71, a first reducing agent pump 72, a first reducing agent supply unit 73, a first reducing agent valve 74, a second reducing agent supply pipe 75, and a second reducing agent.
  • a pump 76, a second reducing agent supply unit 77, a second reducing agent valve 78, and a reducing agent control unit 79 are included.
  • the reducing agent supplied from the first reducing agent supply unit 73 may flow in the first reducing agent supply pipe 71.
  • the reducing agent supplied from the first reducing agent supply unit 73 may flow through the first reducing agent supply pipe 71 by the first reducing agent pump 72.
  • the first reducing agent pump 72 may be installed in the first reducing agent supply pipe 71.
  • the first reducing agent supply unit 73 may store a reducing agent of a predetermined concentration.
  • the first reducing agent supply unit 73 may supply a reducing agent to the first reducing agent supply pipe 71.
  • the first reducing agent supply unit 73 may be connected to the first reducing agent supply pipe 71.
  • the first reducing agent valve 74 may be installed in the first reducing agent supply pipe 71.
  • the first reducing agent valve 74 may adjust the flow rate of the reducing agent flowing through the first reducing agent supply pipe 71.
  • the reducing agent supplied from the second reducing agent supply unit 77 may flow in the second reducing agent supply pipe 75.
  • the reducing agent supplied from the second reducing agent supply unit 77 may flow through the second reducing agent supply pipe 75 by the second reducing agent pump 76.
  • the second reducing agent pump 76 may be installed in the second reducing agent supply pipe 75.
  • the second reducing agent supply unit 77 may store a reducing agent having a predetermined second concentration.
  • the reducing agent stored in the second reducing agent supply unit 77 may have a different concentration from that of the reducing agent stored in the first reducing agent supply unit 73.
  • the second reducing agent supply unit 77 may supply a reducing agent to the second reducing agent supply pipe 75.
  • the second reducing agent supply unit 77 may be connected to the second reducing agent supply pipe 75.
  • the second reducing agent valve 78 may be installed in the second reducing agent supply pipe 75.
  • the second reducing agent valve 78 may adjust the flow rate of the reducing agent flowing through the second reducing agent supply pipe 75.
  • the first reducing agent supply unit 73 may store a higher concentration than the second reducing agent supply unit 77, for example, 50% of a reducing agent.
  • the first reducing agent supply unit 73 may store a lower concentration than the second reducing agent supply unit 77, for example, 25% of the reducing agent.
  • the reducing agent may be provided in an aqueous solution of sodium thiosulfate (Na 2 S 2 O 3 ).
  • sodium thiosulfate Na 2 S 2 O 3
  • any reducing agent capable of neutralizing the inside of the ballast water can be applied without limitation.
  • the reducing agent control unit 79 controls the first reducing agent pump 72, the first reducing agent valve 74, the second reducing agent pump 76, and the second reducing agent valve 78 as described above to exchange the reducing agents having different concentrations with each other.
  • the mixture may be supplied to the main ballast water discharge line 50.
  • the reducing agent controller 79 may supply the reducing agent to the main ballast water discharge line 50 based on the oxidant concentration of the ballast water measured by the TRO sensor 24. At this time, the reducing agent control unit 79 may supply the reducing agent of the same flow rate when supplying the reducing agent to the main ballast water discharge line 50, the amount of reducing agent may be supplied at different concentrations.
  • the reducing agent having two different concentrations may be supplied with a reducing agent having the same flow rate according to the concentration of the oxidizing agent of the ballast water, thereby neutralizing the discharged ballast water.
  • the auxiliary ballast water discharge line 80 may discharge the ballast water delivered through the main ballast water discharge line 50 and the bypass pipe 60 to the outside.
  • the auxiliary ballast water discharge line 80 may be connected to the main ballast water supply line 20.
  • the auxiliary ballast water discharge line 80 may be connected to a rear end P2 of a point P1 connected to the auxiliary ballast water supply line 10 of the main ballast water supply line 20.
  • the auxiliary discharge valve 81 may be installed in the auxiliary ballast water supply line 80.
  • the auxiliary discharge valve 81 may be provided as an on / off valve.
  • the auxiliary discharge valve 81 may be provided in an open state when discharging the ballast water from the ballast tank 40.
  • the auxiliary discharge valve 81 may be provided in a closed state when supplying the ballast water from the main ballast water supply line 20 to the ballast tank 40.
  • the auxiliary discharge valve 81 and the main supply valve 41 are not provided, and only one main supply valve 81a may be provided.
  • the main supply valve 81a may be installed at a point P2 to which the main ballast water supply line 20 and the auxiliary ballast water discharge line 80 are connected.
  • the main supply valve 81 may adjust the flow rate of the ballast water or the ballast water flowing through the main ballast water supply line 20.
  • the main supply valve 81 may be provided as a three-way valve.
  • the main supply valve 81 may close a portion connected thereto so that the ballast water does not flow to the auxiliary ballast water discharge line 80 when the ballast water flows into the ballast tank 40.
  • the main supply valve 81 may close a portion connected thereto so that the ballast water does not flow into the ballast tank 40 when the ballast water is discharged.
  • the controller 95 may control the reducing agent supply member 70 by receiving an oxidant concentration value measured by the TRO sensor 24.
  • the controller 95 may receive an oxidant concentration value measured by the TRO sensor 24. Through the measured oxidant concentration value, the controller 95 may control the reducing agent supply member 70 to adjust the amount of the reducing agent supplied to the main ballast water discharge line 50.
  • the controller 95 may receive and transmit an oxidant concentration value to the TRO sensor 24 when the ballast water flows into the ballast tank 40 from the common pipe 90.
  • the controller 95 may adjust the amount of ballast water supplied to the main ballast water supply line 20 by controlling the connection valve 31 based on the oxidant rich value measured by the TRO sensor 24.
  • the oxidant concentration of the ballast water flowing into the ballast tank or the ballast water flowing out of the ballast tank is measured by a TRO sensor installed in a common pipe, thereby improving the efficiency of the ballast water treatment system.
  • TRO sensors by measuring the oxidant concentration of the ballast water flowing into the ballast tank or the ballast water flowing out of the ballast tank with a TRO sensor installed in a common pipe, two or more TRO sensors do not provide a ballast The manufacturing cost of the water treatment system can be reduced.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

L'invention concerne, selon un mode de réalisation, un système de traitement d'eau de ballast, comprenant une conduite d'alimentation en eau de ballast auxiliaire (10), une conduite d'alimentation en eau de ballast principale (20), un caisson de prise d'eau auxiliaire (11), une pompe auxiliaire (12), une crépine (15), un capteur de pression (14), un bain électrolytique (16), un caisson de prise d'eau principal (21), une pompe principale (22), un filtre (23), un capteur TRO (24), un réservoir de ballast (40), une vanne d'alimentation principale (41), une conduite d'évacuation d'eau de ballast principale (50), un tuyau de dérivation (60), un élément d'alimentation en agent réducteur (70), une conduite d'évacuation d'eau de ballast auxiliaire (80), une vanne d'évacuation auxiliaire (81) et un dispositif de commande (95).
PCT/KR2018/004063 2017-04-12 2018-04-06 Système de traitement d'eau de ballast WO2018190574A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0047496 2017-04-12
KR1020170047496A KR101816906B1 (ko) 2017-04-12 2017-04-12 밸러스트수 처리 시스템

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WO2018190574A1 true WO2018190574A1 (fr) 2018-10-18

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CN112078745A (zh) * 2020-08-11 2020-12-15 沪东中华造船(集团)有限公司 一种lng船压载舱强度试验系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010207795A (ja) * 2009-02-16 2010-09-24 Kuraray Co Ltd ろ過ユニットおよびこれを備えたバラスト水製造装置
KR20150076821A (ko) * 2013-12-27 2015-07-07 현대중공업 주식회사 정밀한 tro 농도 측정수단을 구비하는 선박 평형수 처리 장치
KR20150122004A (ko) * 2014-04-22 2015-10-30 삼성중공업 주식회사 밸러스트수 처리 장치
KR20160112601A (ko) * 2015-03-20 2016-09-28 삼성중공업 주식회사 밸러스트수 처리 장치 및 방법
KR20160124688A (ko) * 2015-04-20 2016-10-28 한라아이엠에스 주식회사 멀티제어를 이용한 선박평형수 처리장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010207795A (ja) * 2009-02-16 2010-09-24 Kuraray Co Ltd ろ過ユニットおよびこれを備えたバラスト水製造装置
KR20150076821A (ko) * 2013-12-27 2015-07-07 현대중공업 주식회사 정밀한 tro 농도 측정수단을 구비하는 선박 평형수 처리 장치
KR20150122004A (ko) * 2014-04-22 2015-10-30 삼성중공업 주식회사 밸러스트수 처리 장치
KR20160112601A (ko) * 2015-03-20 2016-09-28 삼성중공업 주식회사 밸러스트수 처리 장치 및 방법
KR20160124688A (ko) * 2015-04-20 2016-10-28 한라아이엠에스 주식회사 멀티제어를 이용한 선박평형수 처리장치

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