Setting structure of air supplying manifold and cleaning method of filter and filtering membrane module

空气供给集管的设置结构、过滤装置、过滤膜组件的清洗方法

Abstract

本发明提供一种空气供给集管的设置结构、过滤装置、过滤膜组件的清洗方法,其可以在开始吹气泡清洗时同时且均匀地对多个过滤膜组件供给空气而进行均匀的清洗,可以省略设置用于防止原液流入到空气供给集管内的逆止阀等。一种空气供给集管(6)的设置结构,在清洗过滤膜组件(2)的过滤膜时,用于向作为该过滤膜组件(2)的下部配管的原液供给支管(3a)内供给空气,其特征在于,从空气供给集管(6)的下部周壁面向下方垂下有与该空气供给集管(6)相连通且借助连接管(7)与作为过滤膜组件(2)下部配管的原液供给支管(3a)相连接的空气供给支管(6a)。
The invention provides a cleaning method for a setting structure, a filter device, filter film assemblies of an air supply header, which can uniformly supply air to a plurality of filter film assemblies for the uniform cleaning while starting cleaning by blowing bubble, and can save a check valve provided for preventing a stock solution from flowing into the air supply header. The setting structure of an air supply header (6) is used for supplying air to the interior of a stock solution supply branch pipe (3a) that is as lower portion piping of the filter film assemblies (2) when cleaning filter films of the filter film assemblies (2), and is characterized in that an air supply branch pipe (6a), which is communicated with the air supply header (6) and is connected with, by means of a connecting pipe (7), the stock solution supply branch pipe (3a) that is as the lower portion piping of the filter film assemblies (2), hangs downwards from lower portion wall faces of the an air supply header (6).

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