To provide accurately injecting ballast water treatment chemicals into ship's ballast water and reducing the size and cost of dosing equipment.SOLUTION: A flowmeter 2 for measuring the flow rate of ballast water flowing in the ballast piping 1, a dosing piping 6 including a dosing pump 7A for injecting a ballast water treatment chemical into the ballast piping 1 from the medication tank 5, and ballast water treatment Vessel ballast water treatment dosing system comprising a TRO meter 4 for measuring TRO concentration of ballast water to which a drug is added, and a control device 9A for outputting a dosing signal based on the measurement values of the flow meter 2 and the TRO meter 4. A flow control valve 10 is provided on the downstream side of the chemical feed pump 7A of the chemical feed pipe 6. A medicine return pipe 11 branched from the medicine injection pipe 6 between the medicine injection pump 7A and the flow control valve 10 and having a tip connected to the medicine tank 5 or the upstream side of the medicine injection pump of the medicine injection pipe is provided . The controller 9A outputs a chemical injection signal for controlling the opening degree of the flow control valve 10.SELECTED DRAWING: Figure 1
【課題】船舶バラスト水へのバラスト水処理薬剤の薬注を的確に行うと共に、薬注装置の小型化、コストダウンを図る。【解決手段】バラスト配管1内を流れるバラスト水の流量を測定する流量計2と、薬剤タンク5からバラスト水処理薬剤をバラスト配管1内に注入する、薬注ポンプ7Aを備える薬注配管6と、バラスト水処理薬剤が添加されたバラスト水のTRO濃度を測定するTRO計4と、流量計2とTRO計4の測定値に基づいて薬注信号を出力する制御装置9Aを備える船舶バラスト水処理用薬注装置。薬注配管6の薬注ポンプ7Aの下流側に流量制御弁10が設けられている。薬注ポンプ7Aと流量制御弁10との間の薬注配管6から分岐して先端が薬剤タンク5又は薬注配管の薬注ポンプの上流側に連結された薬剤返送配管11が設けられている。制御装置9Aは、流量制御弁10の開度を制御する薬注信号を出力する。【選択図】図1
VESSEL BALLAST WATER TREATMENT CHEMICAL FEEDER AND VESSEL BALLAST WATER TREATMENT DEVICE HAVING THE SAME
船舶バラスト水処理用薬注装置及びそれを備えた船舶バラスト水処理装置
2019-04-18
Patent
Electronic Resource
Japanese
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