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    • 4. 发明授权
    • Photographic processing apparatus
    • 摄影处理设备
    • US5802416A
    • 1998-09-01
    • US881834
    • 1997-06-25
    • Anthony EarleLeslie Wells
    • Anthony EarleLeslie Wells
    • G03D3/00G03D3/02G03D3/06
    • G03D3/02G03D3/06
    • Described herein is a countercurrent multi-tank washing stage (10) for photographic processing apparatus which comprises a first washing tank (500), a last washing tank (100) and at least one intermediate washing tank (200, 300, 400), each washing tank having a recirculation system (102, 202, 302, 402, 502) associated therewith. The first washing tank (500) is positioned upstream from the last washing tank (100). Each of the last washing tank (100) and the intermediate washing tanks (200, 300, 400) is fluidly connected to the recirculation system of an adjacent upstream washing tank (200, 300, 400, 500). Level sensors (112, 114, 212, 214, 312, 314, 412, 414, 512) are provided in each of the washing tanks (100, 200, 300, 400, 500) to control an operating level (116, 216, 316, 416, 516) of washing solution in each of the tanks (100, 200, 300, 400, 500) and a fill level (118, 218, 318, 418) in the last and intermediate tanks (100, 200, 300, 400). Fresh washing solution is added to the last washing tank (100) in response to signals from the level sensors (112, 212, 312, 412, 512) when the operating level falls below the level. Sensors (114, 214, 314, 414) at the fill level (118, 218, 318, 418) are used to control the transfer of solution from the last washing tank (100) via the recirculation systems (102, 202, 302, 402) to the tank(s) where the operating level has fallen. Sensors (110, 210, 310, 410, 510) are also provided in the recirculation systems (102, 202, 302, 402, 502) for sensing the conductivity of the washing solution and hence controlling the filling of the tanks (100, 200, 300, 400, 500) in response to conductivity values over a predetermined limit.
    • 本文描述了一种用于照相处理设备的逆流多槽洗涤台(10),其包括第一洗涤槽(500),最后一个洗涤槽(100)和至少一个中间洗涤槽(200,300,400),每个 洗涤槽具有与其相关联的再循环系统(102,202,302,402,502)。 第一洗涤槽(500)位于最后一个洗涤槽(100)的上游。 最后一个洗涤槽(100)和中间洗涤槽(200,300,400)中的每一个流体地连接到相邻的上游洗涤槽(200,300,400,500)的再循环系统。 液位传感器(112,114,212,214,312,314,412,414,512)设置在每个洗涤槽(100,200,300,400,500)中以控制操作水平(116,216,212) 每个储罐(100,200,300,400,500)中的洗涤溶液和最后一个和中间罐(100,200,300)中的填充水平(118,218,318,418)的清洁溶液(316,316,516) ,400)。 当操作水平低于水平面时,响应于来自液位传感器(112,212,312,412,512)的信号,将新鲜的洗涤溶液添加到最后的洗涤槽(100)中。 填充水平(118,218,318,418)的传感器(114,214,314,414)用于控制经由再循环系统(102,202,302,414)从最后一个洗涤槽(100)的溶液的转移, 402)到运行水平下降的水箱。 传感器(110,210,310,410,510)也设置在再循环系统(102,202,302,402,502)中,用于感测洗涤溶液的电导率并因此控制罐(100,200)的填充 ,300,400,500),其响应于超过预定极限的电导率值。