WO2019003380A1 - バラスト水処理装置 - Google Patents
バラスト水処理装置 Download PDFInfo
- Publication number
- WO2019003380A1 WO2019003380A1 PCT/JP2017/023926 JP2017023926W WO2019003380A1 WO 2019003380 A1 WO2019003380 A1 WO 2019003380A1 JP 2017023926 W JP2017023926 W JP 2017023926W WO 2019003380 A1 WO2019003380 A1 WO 2019003380A1
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- WIPO (PCT)
- Prior art keywords
- ballast water
- exhaust pipe
- internal pressure
- hydrogen
- air
- Prior art date
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Classifications
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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
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- 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
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- 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
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- 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 ballast water treatment apparatus that kills microorganisms present in seawater taken by a ship as ballast water from a sea area at a port of call.
- the ship sinks and stabilizes until the draft when loaded.
- the propeller screw is also designed to be submerged. Therefore, when the cargo is not loaded, due to the buoyancy, it is too floating and the stability of the ship and the immersion depth of the propeller screw can not be secured. Therefore, a cargo ship or the like who has unloaded a load draws seawater in the port of call and stores it in the hull, thereby bringing the draft line closer to the loaded status of the load. The seawater taken in at this time is called ballast water.
- Ballast water is transported to the next port of call as a ship "weight" and released with the loading of the load. In other words, it will bring the marine life of the previous port area to the next port area. In this way, moving organisms from one place to another is likely to lead to the destruction or pollution of the local ecosystem brought up by nature. Therefore, the International Maritime Organization (IMO) has adopted the Ballast Water Management Convention (the International Convention for the Control and Management of Ballast Water and Sediment), which sets standards for the amount of organisms contained in discharged ballast water.
- IMO International Maritime Organization
- the number of organisms (mainly zooplankton) of 50 ⁇ m or more contained in ballast water discharged from ships is less than 10 in 1 m 3 and the number of organisms (mainly phytoplankton) between 10 ⁇ m and 50 ⁇ m is less Less than 10 in 1 mL, less than 1 cfu in 100 mL of toxin-producing Vibrio cholerae, less than 250 cfu in 100 mL of E. coli, and less than 100 cfu in 100 mL of enterococci.
- cfu (colony forming unit) is a colony forming unit.
- microorganisms in seawater taken as ballast water need to be killed.
- Methods for killing microorganisms in seawater include physically and mechanically killing aquatic organisms, heat killing aquatic organisms, injecting chemicals into ballast tanks, or generating chlorine-based substances, etc. And the like to kill aquatic organisms.
- Patent Document 1 discloses a structure in which seawater introduced from one end with a cylindrical electrode is desalinated and discharged from the other end.
- one electrode (cathode side) has a through hole, and the other electrode is formed of a cylindrical outer surface without a hole. Then, at the other (anode side) electrode facing the hole, a generation point of sodium hypochlorite is provided.
- sodium hypochlorite is generated by electrolyzing ballast water (seawater) taken in, and the microbe is killed.
- the ballast water treatment apparatus Since the ballast water treatment apparatus is disposed inside the ship, it is installed in a narrow place. Therefore, the distance between adjacent devices is very close.
- a rectifier is disposed as a voltage source for applying a voltage to the electrodes in the electrolytic cell, and there is a sufficient risk that sparks may fly. Then, if there is a flammable gas around it, an explosion will easily occur.
- ballast water treatment apparatus a method for safely treating hydrogen gas is required.
- Patent Document 2 As the treatment of hydrogen, there is one disclosed in Patent Document 2.
- Patent Document 2 as a technology enabling safe and economical dilution of hydrogen gas generated during electrolysis, it is selected from nitrogen, carbon dioxide, and a noble gas which are inert to hydrogen and do not contain oxygen.
- the hydrogen concentration in the gas to be treated is diluted to a predetermined value or less (for example, less than the explosion limit) by mixing the gas to be treated with at least one of the components as the main component, and then diluted A technique is disclosed that further dilutes the gas to be treated by mixing it with air.
- a direct current power supply 102 is connected to the electrolytic cell 101, and a current value by the direct current power supply 102 is measured by an ammeter 103.
- An exhaust pipe 104 for discharging gas generated by electrolysis is connected to the electrolytic cell 101, and a mixer 105 is interposed in the exhaust pipe 104, and a nitrogen supply pipe 106 is connected to the mixer 105. It is connected.
- a flow rate regulator 107 is interposed in the nitrogen supply pipe 106.
- the flow rate regulator 107 can be controlled by the control unit 108, and the control unit 108 controls the flow rate regulator 107 based on the measurement result by the ammeter 103 to control nitrogen in the nitrogen supply pipe 106.
- the flow rate can be adjusted.
- a mixer 109 is interposed downstream of the mixer 105 in the exhaust pipe 104, and an air supply pipe 110 is connected to the mixer 109.
- An exhaust duct 111 for discharging the mixed gas is connected to the exhaust side of the mixer 109.
- ballast water treatment device When this method is applied to hydrogen treatment generated by a ballast water treatment system, a large amount of nitrogen is required. For example, a tanker has a loading capacity of several thousand tons to several hundred thousand tons. This is because the ballast water treatment device needs to treat ballast water that meets its load capacity.
- the ballast water treatment apparatus is installed in a narrow place inside the ship. Therefore, the distance between adjacent devices is very close.
- a rectifier is disposed as a voltage source for applying a voltage to the electrodes in the electrolytic cell, and there is a sufficient risk that sparks may fly. Then, if there is a flammable gas around it, an explosion will easily occur.
- the present invention has been conceived in view of the above problems, and hydrogen can be safely diluted and exhausted even in a ship in which the electrolytic cell and the voltage source are compactly installed, and the surrounding flammable
- the present invention provides a ballast water treatment apparatus capable of preventing gas explosion.
- the ballast water treatment apparatus is An electrolytic cell having a ballast water inlet, a ballast water outlet, a hydrogen exhaust pipe, and an electrode disposed therein; A voltage source for applying a DC voltage to the electrodes; An internal pressure vessel containing the electrolytic cell and the voltage source; A blower for sending air to the internal pressure container; And an exhaust pipe connected to the internal pressure vessel, The hydrogen exhaust pipe is in communication with the exhaust pipe above the internal pressure vessel.
- ballast water treatment apparatus In the ballast water treatment apparatus according to the present invention, a large amount of air is sent by a blower into the internal pressure vessel (internal pressure explosion-proof), and the generated hydrogen flowing into the exhaust pipe from the internal pressure vessel is mixed and diluted in a short time. Hydrogen gas can be diluted.
- FIG. 4 is an enlarged view of the vicinity of the electrolytic cell of FIG. 3 and a voltage source. It is piping sectional drawing (conceptual view) of a dilution point. It is a figure which shows the other form of a ballast water treatment apparatus. It is a figure which shows an example of a hydrogen processing apparatus.
- ballast water treatment apparatus according to the present invention will be described with reference to the drawings.
- the following description describes some embodiments of the ballast water treatment apparatus according to the present invention, and the present invention is not limited to the following description. That is, the following embodiments can be modified without departing from the spirit of the present invention.
- the upstream side and the downstream side indicate the supply side and the discharge side in the flow of air or ballast water.
- the ballast water treatment apparatus 1 includes an electrolytic cell 10, an electrode 12, a voltage source 14, an internal pressure vessel 16, a blower 18, an exhaust pipe 20 and a hydrogen exhaust pipe 22. Further, the control unit 30 and the hydrogen gas concentration meter 24 may be further included. Since the electrode 12 is actually disposed in the electrolytic cell 10, it can not be seen from the outside. It has shown in the conceptual diagram in order to demonstrate a structure.
- the electrolytic cell 10 is provided with a ballast water inlet 10i and a ballast water outlet 10o, and a certain amount of ballast water is supplied and discharged by a ballast water pipe 50 connected thereto.
- ballast water pipe 50 on the side where the ballast water flows into the electrolytic cell 10 is taken as the inflow side ballast water pipe 50i
- ballast water pipe 50 on the side where the ballast water flows out from the electrolytic cell 10 is the outflow side ballast water pipe It will be 50 o.
- a valve 52 o may be disposed in the outflow side ballast water pipe 50 o.
- the valve 52 o regulates the outflow amount of ballast water and regulates the amount of ballast water stored in the electrolytic cell 10.
- FIG. 2 the cross-sectional enlarged view of the electrolytic vessel 10 is shown.
- the ballast water is stored to a depth at which at least a portion of the electrode 12 described later is submerged. Then, in the electrolytic cell 10, two regions of a portion Ba of ballast water and a space portion BR on the water surface Bf are formed.
- the upper surface 10 u of the electrolytic cell 10 is preferably formed in a conical shape. This is because hydrogen generated by the electrolysis of seawater (ballast water) is lighter than air and can be recovered without leakage if the upper surface 10 u of the electrolytic cell 10 is formed in a pyramidal shape.
- a cone shape means the shape to which a cross-sectional area becomes small gradually toward the vertex provided above the bottom face. Further, the shape of the side surface of the pyramidal shape is not particularly limited.
- a hydrogen exhaust pipe 22 is provided on the top surface 10 u of the electrolytic cell 10. It is for discharging the generated hydrogen gas. If the top surface 10 u of the electrolytic cell 10 is formed in a pyramidal shape, the hydrogen exhaust pipe 22 may be disposed at the apex portion 10 t of the pyramidal shape. This is because hydrogen gas is accumulated in this portion.
- one or more electrodes 12 are disposed. Moreover, the electrodes 12 are disposed so as not to contact each other. This is to apply a voltage to the ballast water stored in the electrolytic cell 10. Chlorine is generated from the anode 12a (anode) to form hypochlorous acid in the ballast water. On the other hand, hydrogen gas is generated at the cathode 12c (cathode).
- a voltage source 14 for supplying a voltage to the electrode 12 is disposed.
- the voltage source 14 includes at least a rectifier (not shown). In ships, alternating current is generated by a generator, but the ballast water treatment apparatus 1 requires a direct current voltage.
- the voltage source 14 is connected to an AC wiring 14s that supplies AC electricity from a generator 54 (see FIG. 1).
- electrolysis of seawater is performed in the electrolytic cell 10, and an electric current also flows. In that sense, it may be rephrased as a power source. Also, supplying may be said to supply DC power.
- an internal pressure vessel 16 is formed to surround the electrolytic cell 10 and the voltage source 14.
- the internal pressure vessel 16 accommodates the electrolytic cell 10 and the voltage source 14.
- the internal pressure vessel 16 is airtight and has structural strength against internal pressure. This is because the internal pressure vessel 16 is used at a positive pressure (a pressure higher than atmospheric pressure) inside.
- the pressure resistance to the internal pressure is not particularly limited, as long as the internal pressure can withstand a pressure of about 1 to 1.5 atm. If the pressure resistance is too high, the weight of the internal pressure container 16 itself becomes heavy.
- passing portions of the ballast water piping 50 connected to the ballast water inlet 10i and the ballast water outlet 10o of the electrolytic cell 10 are respectively a passing portion 60i and a passing portion 60o.
- a passing portion 62 of the hydrogen exhaust pipe 22, and a passing portion 64 of the AC wiring 14s are respectively shielded.
- the internal pressure container 16 is provided with an air inlet 16ai and an air outlet 16ao.
- An air pipe 56 is connected to each of them.
- the air piping 56 connected to the air inlet 16ai is an inlet air piping 56i
- the air piping 56 connected to the air outlet 16ao is an outlet air piping 56o. That is, the inlet air pipe 56i and the outlet air pipe 56o are connected to the air inlet 16ai and the air outlet 16ao.
- the outlet of the blower 18 is connected to the inflow side air piping 56i.
- the air from the blower 18 is blown into the internal pressure vessel 16 through the inflow side air piping 56i.
- the outflow side air piping 56 o is called an exhaust pipe 20.
- the exhaust pipe 20 is installed so as to pass from the air outlet 16ao to the upper part or the upper part of the internal pressure vessel 16. And in the upper part of the internal pressure container 16, it installs in the piping state which has a perpendicular
- the exhaust pipe 20 has a vertical installation area 20 v at the upper part of the internal pressure vessel 16.
- the vertical installation area 20v is preferably a portion where the exhaust pipe 20 is installed so that the air flowing in the exhaust pipe 20 flows vertically from the bottom to the top in the gravity direction.
- a portion where air flowing in the exhaust pipe 20 flows upward from below in the gravity direction may be referred to as a vertical installation area 20v.
- the hydrogen exhaust pipe 22 taken out of the internal pressure vessel 16 via the passage portion 62 is connected to the vertical installation area 20v. Since hydrogen is lighter than air, it tends to ascend within the vertical installation area 20v. Thereby, the hydrogen in the hydrogen exhaust pipe 22 is mixed and diluted with the air in the exhaust pipe 20.
- a connection point between the hydrogen exhaust pipe 22 and the exhaust pipe 20 is called a dilution point 26. Further, a hydrogen gas concentration meter 24 is installed downstream of the dilution point 26.
- a branch point 10ad of the air outlet may be provided inside the internal pressure container 16 of the air inlet 16ai.
- a bypass pipe 56ib for feeding air from the branch point 10ad to the space portion BR above the water surface Bf (see FIG. 2) in the electrolytic cell 10 is provided. By providing the bypass pipe 56ib, the hydrogen gas can be diluted from the generation source.
- the ballast water treatment apparatus 1 may be equipped with the control part 30 which controls the whole.
- the control unit 30 is connected to at least a hydrogen gas concentration meter 24, a blower 18 and a voltage source 14.
- an input / output device 32 may be connected which instructs the control unit 30 to display the current state.
- Control unit 30 receives signal Shc from hydrogen gas concentration meter 24.
- the control unit 30 also outputs an instruction signal Cb for controlling the operating state to the blower 18.
- Control unit 30 also outputs an instruction signal Cp for controlling the operating state to voltage source 14.
- the inflow ballast water pipe 50i may be provided with a valve 52i, and the control unit 30 may output an instruction signal Cv for controlling the opening and closing of the valve 52i.
- FIG. 4 The structure of the ballast water treatment apparatus 2 is shown in FIG. In FIG. 4, the enlarged view of electrolyzer 11 vicinity is shown.
- the same elements as in FIGS. 1 and 2 are denoted by the same reference numerals.
- the upper surface 10u of the electrolytic cell 10 is formed in a conical shape, and the hydrogen exhaust pipe 22 is extended therefrom. In such a type, when the flow velocity of the ballast water flowing through the ballast water piping 50 is low, it operates properly.
- the space portion BR of the electrolytic cell 10 is filled with the ballast water.
- ballast water ascends in the hydrogen exhaust pipe 22 and may rise to the exhaust pipe 20. Therefore, when the flow velocity of ballast water is high, it is necessary to configure so as not to form the space portion BR in the electrolytic cell 10.
- the hydrogen exhaust pipe 22 is not in communication with the electrolytic cell 11, but is in communication with the expansion pipe 11e provided at the ballast water outlet 11o of the electrolytic cell 11. .
- the ballast water is discharged into the expansion pipe 11 e at the portion which has left the electrolytic cell 11, so that the flow velocity is reduced. Therefore, the gas which flowed out of the electrolytic vessel 11 is stored in the upper part of the expansion tube 11e. This gas is hydrogen.
- the exhaust pipe 20 since the air passing through the exhaust pipe 20 has a flow velocity, at the dilution point 26, the exhaust pipe 20 has a negative pressure with respect to the hydrogen exhaust pipe 22, and hydrogen gas in the hydrogen exhaust pipe 22 can be sucked. .
- the ballast water treatment apparatus 1 having the above configuration will be described.
- the untreated ballast water live microorganisms remain
- the inflow side ballast water piping 50 i passing through the passing portion 60 i of the internal pressure vessel 16.
- Flows into the electrolytic cell 10 or the electrolytic cell 11: the same applies hereinafter).
- ballast water in the electrolytic cell 10 is discharged from a ballast water outlet 10o (or a ballast water outlet 11o: the same hereinafter) as the amount flowing in from the ballast water inlet 10i (or the ballast water inlet 11i: the same applies hereinafter).
- ballast water outlet 10o or a ballast water outlet 11o: the same hereinafter
- ballast water inlet 11i the same applies hereinafter.
- the blower 18 continues to deliver a predetermined amount of air into the internal pressure vessel 16.
- the inside of the internal pressure vessel 16 is stabilized in a positive pressure state.
- the flammable gas does not flow into the internal pressure vessel 16 from the outside of the internal pressure vessel 16 and the danger of ignition or explosion of the voltage source 14 causing the ignition. Can be avoided.
- the voltage source 14 is installed on the air inlet 16ai side from the hydrogen exhaust pipe 22, since the air flow is generated from the air inlet 16ai to the air outlet 16ao in the internal pressure vessel 16, The voltage source 14 serving as the ignition source is always sprayed with fresh air, and the safety is enhanced.
- the connection point 14 a and the connection point 14 b are the portions where sparks are most likely to fly.
- the voltage source 14 may be disposed between the air inlet 16ai and the air outlet 16ao, and may face the air inlet 16ai.
- voltage source 14 converts an AC voltage supplied from generator 54 outside internal pressure vessel 16 by AC wiring 14 s to a DC voltage by the rectifier, and electrode 12 in electrolytic cell 10. Supply to each.
- the ballast water is electrolyzed in the electrolytic cell 10 by the electrode 12 to become treated ballast water. As a result, hydrogen gas is generated from the cathode 12c.
- the generated hydrogen gas H 2 is accumulated in the upper part BRu of the electrolytic cell 10. Since the upper portion of the electrolytic cell 10 has a pyramidal shape, the hydrogen gas rises toward the top portion 10t. Here, when air is introduced into the electrolytic cell 10 from the bypass pipe 56ib, hydrogen H 2 is also diluted with the air Air in the electrolytic cell 10.
- the hydrogen gas concentration in the hydrogen exhaust pipe 22 from the space portion BR can be reduced, and the safety can be further enhanced.
- the flow velocity of the ballast water is reduced, so hydrogen is stored on the upper surface of the enlarged tube 11e.
- the flow velocity in the expansion tube 11 e is preferably 1.2 m / s or less.
- the air from the air outlet 16ao of the internal pressure vessel 16 passes through the exhaust pipe 20, passes through the vertical installation area 20v, and passes through the dilution point 26. Since the air passing through the dilution point 26 has a flow velocity, negative pressure is applied to the hydrogen exhaust pipe 22 and the hydrogen gas in the hydrogen exhaust pipe 22 is sucked.
- the cross-sectional area of the exhaust pipe 20 at the dilution point 26 is set narrower than the cross-sectional area of the exhaust pipe 20 before and after that, the flow velocity of air at the dilution point 26 becomes faster and the suction at the dilution point 26 The power can be increased. Furthermore, the pressure in the internal pressure container 16 can also be raised.
- FIG. 5 is a conceptual view of a cross section of the exhaust pipe 20 and the hydrogen exhaust pipe 22 in the vicinity of the dilution point 26.
- FIG. 5 shows the case where the exhaust pipe 20 is arranged vertically, as shown in FIG. 3, even if the exhaust pipe 20 is arranged horizontally, the air passing through the dilution point 26 has a flow velocity Because the hydrogen exhaust pipe 22 has a negative pressure, the hydrogen gas in the hydrogen exhaust pipe 22 is sucked. If the cross-sectional area is narrowed at the dilution point 26, the hydrogen in the hydrogen exhaust pipe 22 can be absorbed more.
- the hydrogen gas generated in the electrolytic cell 10 is sucked into the air flowing through the exhaust pipe 20 and diluted. Further, the degree of dilution of hydrogen gas is measured by a hydrogen gas concentration meter 24.
- the control unit 30 knows the value of the hydrogen gas concentration meter 24 by the signal Shc. Then, when this value becomes larger than the predetermined value, the instruction signal Cp is immediately output to the voltage source 14 and the voltage supply to the electrode 12 is stopped. In other words, the hydrogen gas concentration in the air of the exhaust pipe 20 is measured by the hydrogen gas concentration meter 24, and the voltage source 14 is stopped when the hydrogen gas concentration reaches a predetermined value or more. At this time, the valve 52i may be closed by the instruction signal Cv to stop the flow of ballast water into the electrolytic cell 10. However, the blower 18 is operated continuously.
- this predetermined value is set lower than the lower explosion limit concentration of hydrogen, the hydrogen concentration in the air downstream of the dilution point 26 can be maintained lower than the lower explosion limit concentration. If there is a margin for the explosion lower limit concentration by setting a predetermined value, control may be performed to lower the applied voltage instead of stopping the voltage source 14. This is because the amount of hydrogen generation is reduced. In addition, an alarm may be displayed through the input / output device 32 when the predetermined value is exceeded.
- the processing flow rate of the electrolytic cell 10 is 600 m 3 / h.
- the theoretical hydrogen gas generation amount is 58.68 L / min. If the air volume of the blower 18 is 6 m 3 / min, the hydrogen gas concentration after dilution (after passing the dilution point 26) can be 0.98 vol%. Since the lower explosion concentration of hydrogen is 4 vol% (volume concentration), it can be seen that it can be diluted to a sufficiently low concentration.
- FIG. 6 shows another embodiment of the ballast water treatment apparatus according to the present invention.
- a baffle plate 16d is provided between the voltage source 14 and the electrolytic cell 10, and the internal pressure vessel 16 accommodates the compartment 16A for accommodating the voltage source 14 and the electrolytic cell 10. Divided into two sections of the section 16B. However, the two compartments are communicated by the gap 16dr of the baffle plate 16d.
- the flow of air from the blower 18 flows from the section 16A in which the voltage source 14 is stored to the section 16B in which the electrolytic cell 10 is stored, and flows toward the exhaust pipe 20. Therefore, the hydrogen gas never flows from the electrolytic cell 10, which is a hydrogen generation source, toward the voltage source 14, which is a ignition source, thereby further enhancing the safety.
- the sections 16A and 16B are physically separated from each other, and the sections may be separate internal pressure containers, and the sections may be connected by an air guide tube or the like.
- the air guide tube corresponds to the gap 16dr.
- the ballast water treatment apparatus kills microorganisms by electrolyzing ballast water.
- hydrogen gas generated in the process can be exhausted while being diluted to the explosion limit concentration or less, it can be operated safely.
- ballast water treatment apparatus can be suitably used for ships and submarines using ballast water.
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Abstract
Description
バラスト水流入口とバラスト水流出口と水素排気管を有し、内部に電極が配置された電解槽と、
前記電極に直流電圧を印加する電圧源と、
前記電解槽と前記電圧源を収納する内圧容器と、
前記内圧容器に空気を送るブロアと、
前記内圧容器に接続された排気管とを含み、
前記水素排気管は、前記内圧容器より上方で前記排気管に連通されることを特徴とする。
10、11 電解槽
10u 上面
10t 頂点部分
10i、11i バラスト水流入口
10o、11o バラスト水流出口
10ad 分岐点
11e 拡大管
12 電極
12a 陽極
12c 陰極
14 電圧源
14a 接続点
14b 接続点
14s 交流配線
16 内圧容器
16ai 空気流入口
16ao 空気流出口
16A 区画
16B 区画
16d 邪魔板
16dr 隙間
18 ブロア
20 排気管
20v 垂直設置領域
22 水素排気管
24 水素ガス濃度計
26 希釈点
30 制御部
32 入出力装置
50 バラスト水配管
50i 流入側バラスト水配管
50o 流出側バラスト水配管
52i バルブ
52o バルブ
54 発電機
56 空気配管
56i 流入側空気配管
56o 流出側空気配管
56ib バイパス管
60i、60o、62、64 通過部分
Ba バラスト水の部分
Bf 水面
BR 空間部分
BRu 上部
101 電解セル
102 直流電源
103 電流計
104 排気管
105 混合器
106 窒素供給管
107 流量調整計
108 制御部
109 混合器
110 空気供給管
111 排気ダクト
Claims (8)
- バラスト水流入口とバラスト水流出口と水素排気管を有し、内部に電極が配置された電解槽と、
前記電極に直流電圧を印加する電圧源と、
前記電解槽と前記電圧源を収納する内圧容器と、
前記内圧容器に空気を送るブロアと、
前記内圧容器に接続された排気管とを含み、
前記水素排気管は、前記内圧容器より上方で前記排気管に連通されるバラスト水処理装置。 - 前記排気管には、
前記水素排気管が連通されている地点より下流側に水素ガス濃度計が配置されており、
前記水素ガス濃度計の出力に基づいて前記電圧源の運転を停止させる制御部をさらに有する請求項1に記載されたバラスト水処理装置。 - 前記排気管は前記内圧容器より上方で垂直成分を有する垂直設置領域を有し、
前記水素排気管は、前記垂直設置領域で前記排気管に連通される請求項1に記載されたバラスト水処理装置。 - 前記水素排気管が連通している地点の前記排気管は、内径が前記地点の前後より狭く形成されている請求項1に記載されたバラスト処理装置。
- 前記ブロアからの空気を前記電解槽中に送り込むバイパス管を有する請求項1に記載されたバラスト処理装置。
- 前記内圧容器は、前記電圧源を収納する区画と、前記電解槽を収納する区画にわかれている請求項1に記載されたバラスト処理装置。
- 前記電解槽の上部は錐型を有し、前記水素排気管は前記錐型の頂点に連通されている請求項1に記載されたバラスト水処理装置。
- 前記内圧容器は、前記ブロアからの空気が吹き込まれる空気流入口と、前記排気管が連結する空気流出口を有し、前記電圧源は、前記空気流入口から前記空気流出口の間に配置され、なおかつ前記空気流入口と正対する請求項1に記載されたバラスト水処理装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020207002480A KR102187152B1 (ko) | 2017-06-29 | 2017-06-29 | 밸러스트수 처리 장치 |
JP2019526061A JP6624481B2 (ja) | 2017-06-29 | 2017-06-29 | バラスト水処理装置 |
PCT/JP2017/023926 WO2019003380A1 (ja) | 2017-06-29 | 2017-06-29 | バラスト水処理装置 |
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CN110877658A (zh) * | 2019-11-15 | 2020-03-13 | 沪东中华造船(集团)有限公司 | 一种用于排放压载水电解氢气的管路系统及船舶 |
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JPH1138578A (ja) * | 1997-07-24 | 1999-02-12 | Fuji Photo Film Co Ltd | 感光材料処理装置 |
JP2007229577A (ja) * | 2006-02-28 | 2007-09-13 | Mitsubishi Heavy Ind Ltd | 液体の無害化処理方法とその装置及びこの装置をそなえた船舶 |
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JP2014100699A (ja) * | 2012-10-25 | 2014-06-05 | Shikoku Instrumentation Co Ltd | 危険物施設に設置可能なマイクロ波化学反応装置 |
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JP6624481B2 (ja) | 2019-12-25 |
KR102187152B1 (ko) | 2020-12-04 |
KR20200015794A (ko) | 2020-02-12 |
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