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1. 发明申请

US20150008195A1 METHOD FOR WASHING A FILTER HAVING AT LEAST TWO LAYERS OF FILTERING MEDIA, IN PARTICULAR FOR FILTERING SEAWATER, AND EQUIPMENT FOR IMPLEMENTING SAID METHOD 有权
标题翻译：用于洗涤具有至少两个过滤介质的过滤器，特别是用于过滤海水的方法和用于实施所述方法的设备
公开(公告)号：US20150008195A1
公开(公告)日：2015-01-08
申请号：US14376051
申请日：2013-01-19
申请人： DEGREMONT
发明人： Gerard Flores
IPC分类号： B01D24/46
CPC分类号： B01D24/4631 , B01D23/16 , B01D23/20 , B01D23/24 , B01D24/12 , B01D24/14 , B01D24/4636 , B01D24/4869 , B01D2101/04 , B01D2201/08 , B01D2201/081 , B01D2201/087
摘要： The invention relates to a method for washing a filter (F) having at least two layers of filtering media (4, 5) for raw water containing components having a tendency to form cakes (M), in particular for seawater, the layers of filtering media being supported by a base (6) comprising pass-through openings and provided with nozzles (6a) enabling air and/or wash water to be injected, the raw water flowing through the layers from top to bottom and the treated water being recovered at the lower portion of the filter, and which comprises at least one spillway (D) at the upper portion thereof for collecting the wash water. The method includes the following series of steps: a) the raw water intake (2) is closed, followed by the filtration outlet valve (13), the filter is depressurized, and the filter cake is broken; b) the water level in the filter is lowered; c) only pressurized air is blown into the lower portion of the filter, said air passing through the layers of the filter from bottom to top and causing the cakes to be reduced to particles, in particular by means of friction; d) rinsing is carried out from bottom to top using only water, the water rinsing time being sufficiently short to ensure that the water level stops below the level of the upper edge of the wash water collection spillway; e) the filter water is emptied once again by discharging same from the lower portion of the filter; f) steps c), d) and e) are repeated at least once, and a final rinsing is carried out by injecting a quantity of backwashing water through the bottom portion of the filter, which is then discharged from the upper portion of the filter via a pipe (14).
摘要翻译：本发明涉及一种用于清洗具有至少两层过滤介质（4,5）的过滤器（F）的方法，所述过滤介质（4,5）用于含有具有形成蛋糕（M），特别是用于海水的趋势的组分的含水过滤层介质由包括通过开口的基部（6）支撑，并且设置有能够喷射空气和/或洗涤水的喷嘴（6a），所述原水从上到下流过层，并且处理的水在过滤器的下部，并且在其上部包括至少一个溢流道（D），用于收集洗涤水。该方法包括以下一系列步骤：a）原水入口（2）关闭，然后过滤出口阀（13），过滤器减压，滤饼破碎; b）过滤器中的水位降低; c）只有加压空气吹入过滤器的下部，所述空气通过过滤器的层从底部到顶部，并且特别是通过摩擦将蛋糕还原成颗粒; d）仅使用水进行从底部到顶部的漂洗，水的冲洗时间足够短以确保水位停止在洗涤水收集溢流道的上边缘的水平以下; e）通过从过滤器的下部排出过滤水再次排空过滤水; f）步骤c），d）和e）至少重复一次，并且通过将一定量的反冲洗水通过过滤器的底部进行最后的冲洗，然后从过滤器的底部排出，通过管道（14）。

2. 发明授权

US09295929B2 Method for washing a filter having at least two layers of filtering media, in particular for filtering seawater, and equipment for implementing said method 有权
标题翻译：用于洗涤具有至少两层过滤介质，特别是用于过滤海水的过滤器的方法，以及用于实现所述方法的设备
公开(公告)号：US09295929B2
公开(公告)日：2016-03-29
申请号：US14376051
申请日：2013-01-29
申请人： DEGREMONT
发明人： Gerard Flores
IPC分类号： B01D24/16 , B01D24/48 , B01D24/00 , B01D24/12 , B01D24/46 , B01D24/14
CPC分类号： B01D24/4631 , B01D23/16 , B01D23/20 , B01D23/24 , B01D24/12 , B01D24/14 , B01D24/4636 , B01D24/4869 , B01D2101/04 , B01D2201/08 , B01D2201/081 , B01D2201/087
摘要： The invention relates to a method for washing a filter (F) having at least two layers of filtering media (4, 5) for raw water containing components having a tendency to form cakes (M), in particular for seawater, the layers of filtering media being supported by a base (6) comprising pass-through openings and provided with nozzles (6a) enabling air and/or wash water to be injected, the raw water flowing through the layers from top to bottom and the treated water being recovered at the lower portion of the filter, and which comprises at least one spillway (D) at the upper portion thereof for collecting the wash water. The method includes the following series of steps: a) the raw water intake (2) is closed, followed by the filtration outlet valve (13), the filter is depressurized, and the filter cake is broken; b) the water level in the filter is lowered; c) only pressurized air is blown into the lower portion of the filter, said air passing through the layers of the filter from bottom to top and causing the cakes to be reduced to particles, in particular by means of friction; d) rinsing is carried out from bottom to top using only water, the water rinsing time being sufficiently short to ensure that the water level stops below the level of the upper edge of the wash water collection spillway; e) the filter water is emptied once again by discharging same from the lower portion of the filter; f) steps c), d) and e) are repeated at least once, and a final rinsing is carried out by injecting a quantity of backwashing water through the bottom portion of the filter, which is then discharged from the upper portion of the filter via a pipe (14).
摘要翻译：本发明涉及一种用于清洗具有至少两层过滤介质（4,5）的过滤器（F）的方法，所述过滤介质（4,5）用于含有具有形成蛋糕（M），特别是用于海水的趋势的组分的含水过滤层介质由包括通过开口的基部（6）支撑，并且设置有能够喷射空气和/或洗涤水的喷嘴（6a），所述原水从上到下流过层，并且处理的水在过滤器的下部，并且在其上部包括至少一个溢流道（D），用于收集洗涤水。该方法包括以下一系列步骤：a）原水入口（2）关闭，然后过滤出口阀（13），过滤器减压，滤饼破碎; b）过滤器中的水位降低; c）只有加压空气吹入过滤器的下部，所述空气通过过滤器的层从底部到顶部，并且特别是通过摩擦将蛋糕还原成颗粒; d）仅使用水进行从底部到顶部的漂洗，水的冲洗时间足够短以确保水位停止在洗涤水收集溢流道的上边缘的水平以下; e）通过从过滤器的下部排出过滤水再次排空过滤水; f）步骤c），d）和e）至少重复一次，并且通过将一定量的反冲洗水通过过滤器的底部进行最后的冲洗，然后从过滤器的底部排出，通过管道（14）。

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