To provide ballast water treatment equipment which comprises a filter and enables reduction of load on the filter during the initial passing-through of water.SOLUTION: According to the present invention, ballast water treatment equipment 1 is provided which clarifies ballast water, and includes: a filter device 2; clarification lines L2, L3, L5; differential pressure detection means 27; and control means 4. The filter device 2 clarifies water with a filter 21. The clarification lines L2, L3, L5 are the lines which pass through the filter device 2. The differential pressure detection means 27 detects the differential pressure ΔP between the primary pressure and the secondary pressure of the filter 21. The control means 4 performs the initial water passing through mode M2 which is performed in an initial stage where water passing through to the clarification lines L2, L3, L5 is started and the normal water passing through mode M3 which is performed after the initial water passing through mode M2 by switching the modes. The control means 4 determines an abnormality when the differential pressure ΔP becomes equal to or larger than the normal differential pressure threshold P3 in the normal water passing through mode M3, and determines an abnormality when the differential pressure ΔP becomes equal to or larger than the initial differential pressure threshold P2 being smaller than the normal differential pressure threshold P3 in the initial water passing through mode M2.SELECTED DRAWING: Figure 6
【課題】初期通水時におけるフィルタへの負荷を低減することの可能なバラスト水処理装置を提供する。【解決手段】本発明によれば、バラスト水を浄化処理するバラスト水処理装置1であって、濾過装置2と、浄化ラインL2,L3,L5と、差圧検知手段27と、制御手段4とを備えており、濾過装置2は、フィルタ21により水を浄化するよう構成され、浄化ラインL2,L3,L5は、濾過装置2を通るラインであり、差圧検知手段27は、フィルタ21の一次圧と二次圧の差圧ΔPを検知するよう構成され、制御手段4は、浄化ラインL2,L3,L5への通水を開始した初期に実行する初期通水モードM2と、当該初期通水モードM2の後に実行する通常通水モードM3とを切り替えて実行するよう構成され、制御手段4は、通常通水モードM3では、差圧ΔPが通常差圧閾値P3以上となった場合に異常と判断し、初期通水モードM2では、差圧ΔPが通常差圧閾値P3よりも小さい初期差圧閾値P2以上となった場合に異常と判断する、バラスト水処理装置1が提供される。【選択図】図6
BALLAST WATER TREATMENT EQUIPMENT
バラスト水処理装置
2024-09-30
Patent
Electronic Resource
Japanese
BALLAST WATER TREATMENT DEVICE AND BALLAST WATER TREATMENT METHOD
European Patent Office | 2019
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