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    • 7. 发明公开
    • SEAWATER AMOUNT CONTROL APPARATUS FOR SCRUBBER, SEAWATER AMOUNT CONTROL METHOD FOR SCRUBBER AND ALKALI AMOUNT CONTROL APPARATUS
    • 用于洗涤器和碱处理量控制装置的洗涤器的海水量控制装置,海水量控制方法
    • EP3170546A1
    • 2017-05-24
    • EP14897727.5
    • 2014-07-18
    • Fuji Electric Co., Ltd.
    • TAKAHASHI, KuniyukiINUI, Takashi
    • B01D53/50B01D53/77
    • B01D53/346B01D53/1412B01D53/1481B01D53/30B01D53/501B01D53/502B01D53/504B01D53/507B01D53/78B01D53/92B01D2251/304B01D2251/604B01D2252/1035B01D2257/302B01D2258/01B01D2259/4566F01N3/04F01N2570/04F01N2590/02F23J15/04F23J2215/20F23J2219/40F23J2900/15041Y02T10/20
    • An object of the present invention is to achieve stable operation by supplying an appropriate amount of seawater to a scrubber in such a manner that the sulfur oxide concentration in the exhaust gas after processing does not exceed a limit value, and to reduce the measurement frequency of the alkalinity. The amount-of-seawater control device for a scrubber includes: a minimum-amount-of-seawater converter (61) which calculates a minimum amount of seawater which is a minimum amount of seawater necessary for an absorption reaction of the sulfur oxide by the seawater, from an engine output and a sulfur content of fuel oil; an amount-of-seawater correction converter (68) which calculates a corrected amount of seawater which is an amount of seawater at which the sulfur oxide contained in the exhaust gas discharged from the scrubber is equal to or less than a set value; a summing element (69) which calculates a set amount of seawater by summing the minimum amount of seawater and the corrected amount of seawater; a pump control device (70) which implements control such that seawater corresponding to the set seawater amount is supplied to the scrubber; and an alkalinity setting device (81) which sets the alkalinity of the seawater in accordance with traveled waters. The amount of seawater supplied to the scrubber is adjusted on the basis of the alkalinity.
    • 本发明的目的在于,通过向处理后的排气中的硫氧化物浓度不超过极限值的方式向洗涤器供给适量的海水,从而使测定频率降低 碱度。 用于洗涤器的海水量控制装置包括:最小海水量转换器(61),其计算海水的最小量,所述最小海水量是通过所述海水吸收反应所需的最小海水量 海水,来自发动机输出和燃料油的硫含量; 海水量修正转换器(68),其计算从所述洗涤器排出的废气中所含的硫氧化物为设定值以下的海水量即海水的修正量; 求和元件(69),其通过求和最小海水量和校正海水量来计算设定海水量; 泵控制装置(70),其进行控制以使与所设定的海水量对应的海水被供给至洗涤器; 和根据行驶的水设定海水的碱度的碱度设定装置(81)。 供应到洗涤器的海水量基于碱度进行调整。