201002443 六、發明說明： 【發明所屬的技術領域】 本發明，是關於水處理裝置供水配管的洗淨方法’尤 其是關於，對於用來將含有很多有機物、微生物容易繁殖 的有機物含有水予以過濾處理，的過瀘裝置等的水處理裝 置供水配管予以有效率地洗淨的方法。 【先前技術】 過濾裝置，是在過濾器內充塡有砂子、無烟煤等的濾 材而形成的濾床，捕捉SS等的雜質而將其去除，過濾裝 置的運轉，通常是交互進行：將過濾生水通過以得到處理 水的過濾運轉、以及將逆洗水導入過濾器，將被濾床所捕 捉的sS等排出的逆洗處理（例如，專利文獻1)。 在這種過濾裝置，在將含有很多有機物且微生物容易 繁殖的生水進行過瀘處理的情況，在生水中所含有而被濾 床所捕捉的微生物、或在濾床繁殖的微生物，會藉由逆洗 處理被洗淨除去。 可是，在從生水槽到過濾器之間的生水的供水配管上 ，已經附著、繁殖的微生物，並不能藉由逆洗處理將其洗 淨去除，時間經過而微生物繁殖的結果，會讓供水配管封 閉、或者附著在配管的微生物會結塊而流入到過濾器。配 管的封閉會是重大的問題，當從配管剝離的微生物塊流入 過濾器時，由於其比重接近濾材，所以很難藉由平常的逆 洗處理將其排出。而且，因爲積聚於過濾器的微生物所產 -5- 201002443 生的黏性物質與濾材，會形成泥球，結果，會導致濾床封 閉、或因爲濾材的短通路而導致過濾性能降低。 爲了解決這些問題，習知方式是將具有殺菌效果的藥 劑注入生水，以防止微生物繁殖。並且定期進行維修作業 ，進行配管洗淨、過瀘器的濾材更換。 [專利文獻1] 曰本特許第3 4603 24號公報 在以往利用藥劑所進行的殺菌處理，需要進行藥品的 注入量調整、補充等、繁雜的日常作業，因爲要處理有害 的藥品，所以從作業環境的角度來看並不適合，需要花費 藥品成本，尤其如果處理的水量變多的話藥劑費用也會很 多，由於藥劑有可能混入到過濾處理水，所以在利用過濾 處理水時需要設置將藥劑去除的手段、或者在藥劑洗淨後 需要用大量的水進行沖洗洗淨，會有上述的問題，實用性 並不好。 在定期的維修作業的配管洗淨或過濾器的濾材更換， 由於需要停止過濾裝置的運轉，所以在運轉效率方面並不 好。而因此其作業量或濾材成本會有問題。 於是希望有一種將過濾器的供水配管洗淨的方法，不 用利用藥品進行殺菌、或不用將過濾裝置的運轉停止的維 修作業。 在專利文獻1所記載的方法，是組合了 ：空氣逆洗處 理、利用鹼及/或酸所進行的逆洗處理，來進行的，除了 需要鹼及/或酸之外，逆洗用水是朝逆流方向流動於過瀘 -6 - 201002443 器內，而從過濾器排出，所以還是無法洗淨供水配管。 關於上述供水配管的洗淨的問題，並不限於過濾裝置 ，像離子交換器、軟水器、活性碳塔，在實際使用上藉由 內部的離子交換樹脂或活性碳等的水處理材來達成過濾功 能，定期或因應需要進行逆洗處理的所有裝置，都有共通 的問題。 【發明內容】 本發明的目的，是要解決上述習知的問題，提供一種 水處理裝置供水配管的洗淨方法，能將過濾裝置等的水處 理裝置的供水配管充分洗淨，即使是用來處理微生物容易 繁殖的有機物含有水的情況，仍能長期且穩定地持續進行 處理。 本發明的水處理裝置供水配管的洗淨方法，是具有： 在內部充塡有水處理材，定期性或因應需要進行逆洗處理 的水處理裝置主體、將生水供給到該水處理裝置主體的供 水配管、從該水處理裝置主體將處理水取出的處理水配管 、將逆洗用水供給到該水處理裝置主體的逆洗用水配管、 以及與該供水配管連接而用來將逆洗用排水排出到系統外 的逆洗用排水配管，其特徵爲：藉由下述步驟：將空氣混 合水供給到較該逆洗用排水配管與該供水配管的該連接部 更上游側，將該空氣混合水經由上述連接部從上述逆洗用 排水配管排出的空氣洗淨步驟、以及之後將逆洗用水供給 到該水處理裝置主體，將來自該水處理裝置主體的逆洗用 201002443 排水，經過上述連接部從上述逆洗用排水配管排出的逆洗 步驟，來將該供水配管洗淨。 在本發明，上述空氣洗淨步驟的對於上述供水配管的 空氣注入量，爲該供水配管的每單位剖面積1 cm2爲4〜 1 0 L / m i η，該空氣洗淨步驟的洗淨時間’能夠是以下述式 子（I)計算出的基準時間Τ(分鐘）的三倍以上（第2發明）。 Τ = { SxLxO.OO 1 /W } …·（I) (S爲供水配管的剖面積（c m2)，L爲空氣混合水流動的供 水配管的長度（cm)，W爲洗淨時的通水量（L/min))。 在上述逆洗步驟之後，也可進行：經由上述供水配管 將生水供給到上述水處理裝置主體，將來自該水處理裝置 主體的流出水排出到系統外的最終洗淨步驟（第3發明）。 並且，也可進行：將空氣混合水供給到處理水配管然 後將其排出到系統外的處理水配管空氣洗淨步驟（第4發 明）。 在具有：將來自處理水配管的處理水予以儲存的處理 水槽、以及將該處理水槽內的處理水作爲逆洗用水來供給 到水處理裝置主體的逆洗用水配管的情況，在逆洗步驟之 前’也可進行：將空氣混合水供給到逆洗用水配管然後將 其排出到系統外的逆洗用水配管空氣洗淨步驟（第5發明） ’在該情況，如果裝置的構造是在水處理裝置主體的處理 水排出口附近將逆洗用水配管連接於處理水配管的話，則 -8- 201002443 也可進行：使空氣混合水，從逆洗用水配管起，經過逆洗 用水配管與處理水配管的連接部，朝處理水流通方向流通 到處理水配管’然後排出到系統外的逆洗用水配管及處理 水配管空氣洗淨步驟（第6發明）。 在本發明，列舉出如下的構造來作爲水處理裝置主體 (第7〜10發明）。 (1) 在內部充塡有濾材來作爲水處理材的過濾器。 (2) 在內部充塡有離子交換樹脂來作爲水處理材的離子 交換塔。 (3 )在內部充塡有離子交換樹脂來作爲水處理材的軟水 器。 (4)在內部充塡有活性碳來作爲水處理材的活性碳塔。 本發明的水處理裝置供水配管的洗淨方法，例如可以 適用於：將有機物含有水作爲生水的水處理裝置的供水配 管的洗淨（第1 1發明）。 在本發明的水處理裝置供水配管的洗淨方法，在空氣 洗淨步驟，以空氣混合水，將較供水配管的逆洗用排水配 管的連接部更上游側予以洗淨，將附著在配管內壁等的微 生物等的污染物質有效率地洗淨剝離，則能將其從逆洗用 排水配管排出到系統外。在該空氣洗淨步驟，空氣混合水 只流到供水配管的逆洗用排水配管的連接部，從該連接部 到水處理裝置主體爲止的供水配管不會被洗淨。從該連接 部到水處理裝置主體爲止的配管長度較短，將該部分洗淨 的需要性較低，在空氣洗淨時剝離的微生物等的雜質會流 -9- 201002443 入到該部分，更可能流入到水處理裝置主胃。 在本發明，在該空氣洗淨步驟後，藉由進行：將逆洗 用水供給到該水處理裝置主體，將來自該水處理裝置主體 的逆洗用排水，經過上述連接部從上述逆洗用排水配管排 出的逆洗步驟，則能將該過濾器主體與上述連接部之間的 供水配管或水處理裝置主體內予以洗淨，則即使當空氣洗 淨時剝離的微生物等的污染物質流入到該部分，也能有效 地將其經過逆洗用排水配管排出到系統外。 在本發明，空氣洗淨步驟的對於上述供水配管的空氣 注入量，爲供水配管的每單位剖面積lcm2爲4〜lOL/min ，空氣洗淨步驟的洗淨時間，能夠是以下述式子（I)計算出 的基準時間T(分鐘）的三倍以上，藉此能進行更有效率的 洗淨，能獲得更好的洗淨效果（第2發明）。 T = { SxLxO.OOl/W } ... (I) (S爲供水配管的剖面積（cm2)，L爲空氣混合水流動的供 水配管的長度（cm) ’ w爲洗淨時的通水量（L/min))。 在逆洗步驟之後’藉由進行：經由供水配管將生水供 給到水處理裝置主體’將來自該水處理裝置主體的流出水 排出到系統外的最終洗淨步驟，藉此在洗淨後再開始運轉 時，可以獲得高品質的處理水（第3發明）。 定期性或因應需要’藉由進行：將空氣混合水供給到 處理水配管然後將其排出到系統外的處理水配管空氣洗淨 -10- 201002443 步驟，則可將處理水配管的微生物等的污染物質剝離洗淨 (第4發明）。 在具有：將來自處理水配管的處理水予以儲存的處理 水槽、以及將該處理水槽內的處理水作爲逆洗用水來供給 到水處理裝置主體的逆洗用水配管的情況，在逆洗步驟之 前，藉由進行：將空氣混合水供給到逆洗用水配管然後將 其排出到系統外的逆洗用水配管空氣洗淨步驟，則可將逆 洗用水配管的微生物等的污染物質剝離洗淨，能夠防止逆 洗用水配管內的污染物質與逆洗用水，在逆洗步驟一起流 入到水處理裝置主體內（第5發明）。 在該逆洗用水配管的洗淨步驟，使空氣混合水，從逆 洗用水配管起，經過逆洗用水配管與處理水配管的連接部 ，流通到處理水配管，然後排出到系統外，藉此則能與逆 洗用水配管一起將處理水配管洗淨（第6發明）。 【實施方式】 以下參考圖面來詳細說明本發明的實施方式。 在本發明，將用來進行水處理裝置的供水配管的空氣 洗淨的步驟稱爲「空氣洗淨步驟1」，將用來進行水處理 裝置的處理水配管或逆洗用水配管的空氣洗淨的步驟稱胃 「空氣洗淨步驟2」或「空氣洗淨步驟3」。 [實施方式1] 首先，參考第1圖〜第5圖來說明本發明實施方式的 -11 - 201002443 一個例子。 第1圖〜第5圖’是顯示本發明的水處理裝置供水配 管的洗淨方法的實施方式的過濾裝置的系統圖，其中第2 圖是本發明的空氣洗淨步驟1(供水配管空氣洗淨步驟）的 顯示圖，第3圖是本發明的空氣洗淨步驟2(逆洗用配管及 處理水配管空氣洗淨步驟）的顯示圖，第4圖是本發明的 逆洗步驟的顯示圖，第5圖是本發明的最終洗淨步驟的顯 示圖。在第2圖〜第5圖’流體流通的配管，相較於流體 沒有流通的配管，是以較粗的實線顯示。流體流通的閥則 是塗黑顯示。 在第1圖〜第5圖中，1是生水槽，2是過濾器，3是 處理水槽，P!是生水泵浦，P2是逆洗用泵浦，\^、V7是 空氣入口閥，V2是過濾入口閥，V3是過濾出口閥，V4是 逆洗用出口閥，V5是逆洗用入口閥，v6、V8是洗淨出口 閥，V9是處理水槽入口閥。11〜23表示配管。Χι〜x5表 示配管連接部。 空氣注入配管16’設置在生水泵浦Pi的排出部附近 ’通常空氣注入配管16與供水配管12的連接部Xi、與 生水泵浦P !的排出部的配管距離爲5 0 c m以下。將逆洗用 排水排出的配管（逆洗用排水配管）1 7與供水配管1 2的連 接部X2、與過濾器2的生水導入口 2A的配管距離’也就 是配管13的長度，通常爲20〜200cm左右。 空氣注入配管2 1，設置在逆洗用泵浦P2的排出部附 近，通常空氣注入配管21與逆洗用水配管19的連接部 -12- 201002443 χ4、與逆洗用泵浦p2的排出部的配管距離爲50cm以下。 而逆洗用配管1 9與處理水配管1 5的連接部X3、與過濾 器2的處理水排出口 2 B的配管距離’也就是配管1 4的長 度通常爲20〜200cm左右’逆洗用水配管19設置在處理 水配管之中的過濾器2的處理水排出口 2B附近。將逆洗 用水配管1 9及處理水配管1 5的洗淨排水予以排出的配管 (洗淨排水配管）22與處理水配管15的連接部X5、與處理 水槽3的處理水入口 3 A的配管距離，也就是配管23的長 度，通常爲50〜500cm左右。 並不限於第1圖〜第5圖的過濾裝置，在任何水處理 裝置，空氣注入配管，是以讓空氣不進入泵浦的方式，連 接在泵浦的排出側。 當生水的過濾運轉時，將過濾入口閥V2、過濾出口 閥V3、及處理水槽入口閥V9開啓’將其他閥關閉，使生 水泵浦Pi作動，使逆洗用泵浦P2停止，將生水槽1內的 生水，經過配管1 1、配管1 2、及配管1 3而導入到過濾器 2，進行過濾處理，將過濾處理水經過配管1 4、配管1 5及 配管2 3而導入到處理水槽3。 藉由持續進行該過濾運轉，會因爲系統內的髒汚，產 生讓壓力損失增加，或其他缺失的情況，或者持續進行預 定過濾運轉後，定期以下述的（1)〜（7)順序進行洗淨。 (1)空氣洗淨步驟（供水配管空氣洗淨步驟）（第2圖） 生水泵浦Pi保持運轉，將空氣入口閥Vi及逆洗用出 -13- 201002443 口閥v4開啓，將過濾出口閥V3及處理水槽入口閥V9關 閉（也就是只有空氣入口閥V!、過瀘入口閥V2及逆洗用出 口閥v4開啓，其他閥關閉），從空氣注入配管1 6 ’將壓縮 空氣注入到供水配管1 2，讓生水與空氣的氣液混合流體流 動於供水配管】2進行空氣洗淨，將洗淨排水從配管1 7排 出。 在該空氣洗淨步驟1，生水是以與在平常過濾運轉時 相等的流量流動於供水配管1 2內，而由設置在生水泵浦 P !附近的空氣注入配管1 6所吹入的空氣與生水會成爲混 合流體，藉由讓其流動於供水配管1 2內，則在配管1 2內 產生紊流，將附著於配管1 2的內壁的微生物等的污染物 予以剝離去除。而包含該剝離的微生物塊等的雜質的氣液 混合流’通過過爐入口閥 V 2，並且流入到局部配管13， 而藉由使逆洗用出口閥v4開啓，使其他閥部v3、v5、v6 關閉，則幾乎不會進入到過濾器2內，從配管1 7排出到 系統外。 藉由該空氣洗淨步驟，將供水配管之中，上述的連接 部X2的上游側的配管1 2予以空氣洗淨。 該空氣洗淨步驟1的空氣混合水用的洗淨水，並不限 於生水，也可以是過濾處理水、或其他系統的水。 (2)停歇步驟1 在上述空氣洗淨步驟1之後，也可立刻實施下次的洗 淨步驟，也可隔介著停歇步驟。有無停歇步驟並不會特別 -14- 201002443 影響洗淨效果。 當進行停歇步驟時，將所有閥部關閉，且使生水泵浦 Pl、逆洗用栗浦P2停止。 (3)空氣洗淨步驟2(逆洗用水配管以及處理水配管空氣洗 淨步驟）（第3圖） 在本實施方式的過濾裝置，處理水流通的處理水配管 或逆洗用水配管，也可能會有不像供水配管那麼嚴重的微 生物繁殖、或污染物質附著，尤其附著於逆洗用水配管的 污染物質當逆洗處理時剝離而流入到過濾器2，會成爲二 次污染的原因。 因此，針對於處理水配管、以及當將處理水用爲逆洗 用水時的逆洗用水配管，也以空氣混合水進行空氣洗淨， 將污染物質剝離去除，排出系統外較佳。 因此，在該空氣洗淨步驟2，爲了以空氣混合水將逆 洗用水配管19與處理水配管15予以洗淨，將空氣入口閥 V7及逆洗用入口閥V5、過濾出口閥V3、洗淨出口閥V8 開啓，將其他閥部關閉，使逆洗用泵浦P2作動（生水泵浦 P!停止），從空氣注入配管21，將壓縮空氣注入到逆洗用 水配管1 9，將經過配管1 8所輸送的來自處理水槽3的處 理水與空氣的氣液混合流體，從逆洗用配管1 9經過連接 部X3流動到處理水配管1 5進行空氣洗淨，藉由配管22 將洗淨排水排出到系統外。 在該空氣洗淨步驟2，來自處理水槽3的處理水，雖 -15- 201002443 然是以與後述逆洗用步驟的流量相同的流量，流動於逆洗 用水配管19及處理水配管15內，而由設置在逆洗用泵浦 P2附近的空氣注入配管2 1所吹入的空氣與處理水，會成 爲混合流體’而流動於逆洗用水配管1 9及處理水配管1 5 內，藉此在配管19、15內產生紊流，將附著在配管19、 1 5的內壁的微生物等的污染物予以剝離去除。包含該剝離 的微生物塊等的雜質的氣液混合流，雖然進一步流入到局 部配管23’而藉由將設置在處理水槽入口附近的處理水槽 入口閥V 9關閉，則幾乎不會進入到處理水槽3內，藉由 配管22排出到系統外。 藉由該空氣洗淨步驟2，將逆洗用水配管之中，連接 部X4與連接部X3之間的部分的逆洗用水配管1 9、處理水 配管之中，連接部X3與連接部X5之間的部分的處理水配 管1 5予以空氣洗淨。 在上述空氣洗淨步驟2中，雖然無法將逆洗用水配管 之中，逆洗用栗浦P2的上游側的配管1 8予以洗淨，而藉 由將逆洗用泵浦P2盡量接近處理水槽3的處理水出口 3 B ，而可以使配管的非洗淨部幾乎消失。可是，當配管15 的長度爲數m(l〜5m)左右時，在配管15的處理水槽3附 近設置洗淨液體導入手段，在較該洗淨液體導入手段更靠 近處理水槽側設置閥部，則可以在從數天到數週期間進行 一次左右的洗淨處理。 針對連接部x3與過濾器2的處理水排出口 2B之間的 配管14，配管14的長度最大限度爲20〜200cm左右’其 -16- 201002443 間即使成爲非洗淨部也不會有問題。 问樣地’針對連接部X5與處理水槽3的處理水入口 3A之間的配管23 ’也將連接部X5設置在處理水入口 3A 附近’藉由將配管23的長度設爲5〇〇cin以下，最好設爲 1 0 0〜2 0 0 c m，則可以使非洗淨部幾乎消失。 來自逆洗用水配管19的空氣混合水，雖然可能從連 接邰X3流入到局部配管14，而藉由將過濾入口閥γ2與逆 洗用出口閥V 4關閉’則幾乎不會流入到過濾器2內。 該空氣洗淨步驟2’爲了防止逆洗用水配管內的污染 物質當逆洗步驟時流入到過濾器2內，而在逆洗步驟之前 實施，而只要是在逆洗步驟之前，在上述空氣洗淨步驟1 之前或之後都可以。 雖然該空氣洗淨步驟2也可以與空氣洗淨步驟1同時 進行，而通常是分別進行。 在上述空氣洗淨步驟2，雖然是將逆洗用水配管與處 理水配管同時進行空氣洗淨，而也可將逆洗用水配管與處 理水配管分別進行洗淨。 例如，將空氣入口閥乂7及逆洗用入口閥V5、洗淨出 口閥v6開啓，將其他閥部關閉，使逆洗用泵浦P2作動（生 水泵浦Pi停止），使來自於空氣注入配管21的壓縮空氣與 來自處理水槽3的處理水的氣液混合流體流動於逆洗用水 配管1 9進行空氣洗淨，藉由使洗淨排水經過連接部X3 ’ 從配管20排出到系統外，則能只洗淨逆洗用水配管1 9。 針對處理水配管，如後述的實施方式2的空氣洗淨步 -17- 201002443 驟2，預先設置有用來將空氣注入到處理水配管15的空氣 注入配管，將該空氣注入配管的空氣入口閥、過濾入口閥 V2、過濾出口閥V3、及洗淨出口閥V8開啓，將其他閥部 關閉，讓生水泵浦P!作動，逆洗用泵浦P2停止，將生水 經過配管12及配管13導入到過濾器2，使來自過濾器2 的處理水與空氣的氣液混合流體流動於配管1 5，藉由從配 管2 2排出到系統外，則能進行處理水配管1 5的空氣洗淨 〇 可是在該情況，只對於上述逆洗用水配管的洗淨處理 ，在逆洗步驟之前進行較佳，而只對於上述處理水配管的 洗淨，在進行過用來將供水配管1 3洗淨的逆洗步驟之後 進行較佳，並且也可在後述的最終洗淨步驟後進行。 該空氣洗淨步驟2的空氣混合水用的洗淨水，並不限 於處理水，也可是生水或其他系統的水。 該空氣洗淨步驟2不是一定要的，可以適當省略。也 就是說，生水的供水配管’會有在生水槽1內繁殖的微生 物塊（泥球）流入，所以必須進行較頻繁的洗淨處理’而生 水的過濾處理水所流通的處理水配管或逆洗用水配管’並 沒有像生水的供水配管這樣的微生物繁殖的問題。因此’ 用來進行逆洗用水配管或處理水配管的洗淨的空氣洗淨步 驟2，相較於用來進行生水的供水配管的洗淨的上述空氣 洗淨步驟1及後述的逆洗步驟’即使洗淨頻率較低也可以 ，也可因爲處理水的水質而予以省略。 -18- 201002443 (4) 停歇步驟2 在上述空氣洗淨步驟2之後，立刻實施逆洗步驟也可 以，也可隔介有停歇步驟。有無停歇步驟，對於洗淨效果 沒有特別的影響。 在進行停歇步驟的情況，將所有閥部關閉，並且將生 水泵浦Pi、逆洗用泵浦p2停止。 (5) 逆洗步驟（第4圖） 如上述，在空氣洗淨步驟1，雖然可進行供水配管12 部分的剝離洗淨，可是除了無法進行：對於供水配管之中 ，逆洗用排水配管1 7的連接部X2的下游側的配管1 3部 分的洗淨，而且可能空氣洗淨時的洗淨水與剝離的微生物 等一起有一部分流入到，該配管13部分或過濾器2內的 入口部分。 於是，在本發明，在進行過上述空氣洗淨步驟1、2 或空氣洗淨步驟1之後，進行逆洗步驟，將過濾器2內及 配管1 3部分予以洗淨。 在逆洗步驟，將逆洗用入口閥V5、及逆洗用出口閥 V4開啓，將其他閥部關閉，使逆洗用泵浦p2作動，使生 水泵浦P i停止’使處理水槽3內的處理水經過配管1 8、 配管1 9及配管1 4逆流到過濾器2，將逆洗用排水經過配 管1 3及配管1 7排出到系統外。 藉此’將過濾器2內及在空氣洗淨步驟1無法洗淨的 配管1 3部分予以洗淨’而能將污染物排出到系統外。 -19- 201002443 (6) 停歇步驟3 在上述逆洗步驟後，立刻再開始進行過濾運轉也可以 ，在進行過後述的最終洗淨步驟之後’再開始過濾運轉也 可以，在過濾運轉或最終洗淨步驟之間隔介有停歇步驟也 可以。 有無停歇步驟，對於洗淨效果沒有特別的影響。當進 行停歇步驟時’將所有閥部關閉’並且使生水泵浦P1、逆 洗用泵浦P2停止。 (7) 最終洗淨步驟（第5圖） 當進行最終洗淨處理時，將過濾入口閥 V2及洗淨出 口閥v6開啓，將其他閥部關閉，使生水泵浦P i作動，使 逆洗用泵浦P2停止，將生水槽1內的生水經過配管1 1、 配管12、及配管13導入到過濾器2，經過配管14、配管 20及配管1 7而排出到系統外。 在第1圖〜第5圖，用來將洗淨排水排出的配管20， 雖然連接於逆洗用排水配管17，而該配管20，也可不與 逆洗用排水配管1 7連接，直接將洗淨排水排出。 該最終洗淨處理雖然不是一定需要，而藉由進行該最 終洗淨處理，則可以將殘留於過濾器2的出口側的污染物 (在逆洗步驟從濾材剝離的污染物）予以排出。在該最終洗 淨處理的洗淨水，除了生水以外，也可以使用過濾處理水 、或其他系統的處理水。 -20- 201002443 在經過上述一連串的洗淨步驟之後’再使過濾入口閥 v2與過瀘出口閥V3開啓’將其他閥部關閉’使生水泵浦 Pi作動，使逆洗用泵浦P2停止’再開始進行生水的過濾 運轉。 [實施方式2] 接著參考第6圖〜第10圖來說明本發明的實施方式 的其他例子。 第6圖〜第10圖，是顯示本發明的水處理裝置供水 配管的洗淨方法的實施方式的過濾裝置的系統圖，其中’ 第7圖是本發明的空氣洗淨步驟1 (供水配管空氣洗淨步驟 )的顯示圖，第 8圖是本發明的空氣洗淨步驟2(處理水配 管空氣洗淨步驟）的顯示圖，第9圖是本發明的逆洗步驟 的顯示圖，第1 〇圖是本發明的最終洗淨步驟的顯示圖。 在第7圖〜第1 〇圖，流體所流通的配管，是以相較於流 體沒有流通的配管更粗的實線來顯示。而流體流動的閥部 是塗黑顯示。 第6圖〜第10圖所示的過濾裝置，其與第1圖〜第5 圖所示的過濾裝置不同之處在於，不是處理水，是以來自 系統外的自來水、工業用水等的清淨度較高的水來進行逆 洗處理，而設置有逆洗用水配管1 9、逆洗用入口閥V5、 及逆洗用泵浦P2，其他是以相同構造組成。 在第6圖〜第10圖，與第1圖〜第5圖所示的構件 達到相同功能的構件是用相同圖號表示。 -21 - 201002443 該過濾裝置，生水的過濾處理、空氣洗淨步驟1 (第7 圖）、逆洗步驟（第9圖）及最終洗淨步驟（第10圖），是與 第1圖〜第5圖所示的過濾裝置的空氣洗淨步驟1(第2圖 )、逆洗步驟（第4圖）及最終洗淨步驟（第5圖）同樣地實施 〇 於是針對空氣洗淨步驟1、逆洗步驟及最終洗淨步驟 省略說明，以下，參考第8圖，針對用來進行處理水配管 的空氣洗淨的空氣洗淨步驟2加以說明。 在本實施方式的過濾裝置，在逆洗用水配管，是工業 用水、自來水等的微生物不會繁殖的水流過，所以針對逆 洗用水配管19不需要進行空氣洗淨。 於是，在空氣洗淨步驟2，將過濾入口閥V2、過濾出 口閥V3、空氣入口閥V7及洗淨出口閥V8開啓，將其他閥 部關閉，使生水泵浦P!作動（逆洗用泵浦P2停止），從空 氣注入配管21，將壓縮空氣注入到處理水配管15，並且 將生水槽1內的生水經過配管11、配管12及配管13，導 入到過濾器2，將來自配管14的處理水與空氣的氣液混合 流體流動於處理水配管1 5進行空氣洗淨，藉由將洗淨排 水從配管22排出到系統外，來將處理水配管1 5內的污染 物質剝離去除而排出到系統外。 在本實施方式，空氣洗淨步驟2，並不一定需要在逆 洗步驟之前進行，在逆洗步驟之後進行也可以。而在空氣 洗淨步驟1之前進行也可以，在最終洗淨步驟之後進行也 可以。而與實施方式1同樣地，該空氣洗淨步驟2可以適 -22- 201002443 當省略，使用於空氣洗淨的水’並不限於生水，工業用水 等的來自系統外的水也可以。 [實施方式3] 接著，參考第11圖〜第17圖來說明本發明的實施方 式的其他例子。 第11圖〜第17圖顯示本發明的水處理裝置供水配管 的洗淨方法的實施方式，是具備有過濾器與陽離子交換塔 的水處理裝置的系統圖，其中，第12圖是本發明的空氣 洗淨步驟1(供水配管空氣洗淨步驟）的顯示圖，第13圖是 本發明的空氣洗淨步驟2(過濾處理水配管空氣洗淨步驟） 的顯示圖，第14圖是本發明的逆洗步驟的顯示圖，第15 圖是本發明的最終洗淨步驟1的顯示圖，第16圖是本發 明的最終洗淨步驟2的顯示圖，第1 7圖是本發明的空氣 洗淨步驟3(陽離子交換處理水配管空氣洗淨步驟）的顯示 圖。 在第1 2圖〜第1 7圖，流體所流通的配管，是以相較 於流體沒有流通的配管更粗的實線來顯示。而流體流動的 闕部則塗黑顯示。 在第11圖〜第17圖顯示的水處理裝置，是在第6圖 〜第10圖所示的過濾裝置的後段又設置有陽離子交換塔4 ,針對過濾裝置，是作成與第6圖〜第U圖所示相同的 構造，對於達到相同功能的構件用相同的圖號表示。 P3是離子交換塔4的逆洗用泵浦，V12是洗淨出 -23- 201002443 口閥，v1G是陽離子交換入口閥，v13是逆洗用入口閥’ v14是空氣入口閥，V15是陽離子交換出口閥。 24〜31表示配管，X6〜X8表示配管連接部。 配管連接部與陽離子交換塔4的導入口 4A之間的 配管距離，也就是配管23的長度通常是20〜200cm左右 ，配管連接部Xs與處理水槽3的處理水入口 3 A之間的配 管距離，也就是配管27的長度通常爲50〜500cm左右。 逆洗用水配管30與陽離子交換處理水配管的連接部 X6、與陽離子交換塔4的陽離子交換處理水排出口 4B的 配管距離，也就是配管24的長度通常爲20〜20 Ocra左右 ，逆洗用水配管30，是設置在：陽離子交換處理水配管之 中的陽離子交換塔4的處理水排出口 4B的附近。並且用 來將陽離子交換處理水配管26的洗淨排水予以排出的配 管（洗淨排水配管）28與處理水配管26的連接部X8、與處 理水槽3的處理水入口 3 A的配管距離，也就是配管2 7的 長度，通常爲50〜500cm左右。 將空氣注入配管31與陽離子交換處理水配管的連接 部X 7，設置在逆洗用水配管3 0與處理水配管2 4的連接 部X6附近的方式，與配管25的長度無關而可以進行空氣 洗淨。 當生水的水處理運轉時，將過濾入口閥 V2及過濾出 口閥V3、陽離子交換入口閥V1Q及陽離子交換出口閥V15 開啓，將其他閥部關閉，使生水栗浦P1作動，使逆洗用 泵浦P 2、p 3停止，將生水槽1內的生水經過配管1 1、配 -24- 201002443 管12、及配管1 3導入到過濾器2進行過濾處理，將過濾 處理水再經過配管14、配管15、及配管23導入到陽離子 交換塔4進行陽離子交換處理，將陽離子交換處理水經過 配管24、配管25、配管26及配管27導入到處理水槽3。 藉由持續進行該水處理運轉，而因爲系統內的髒污導 致壓力損失增大、或產生其他缺失的情況，或者在持續進 行預定的過濾運轉之後，定期用以下（1)〜（7)的順序來進 行洗淨。 (1)空氣洗淨步驟1(供水配管空氣洗淨步驟）（第12圖） 與第1圖〜第10圖所示的過濾裝置的空氣洗淨步驟1 同樣地，生水泵浦P >維持運轉’將空氣入口閥V,及逆洗 用出口閥v4開啓，將過濾出口閥V3、陽離子交換入口閥 Vio、陽離子交換出口閥V15及處理水槽入口閥V9關閉（也 就是只將空氣入口閥Vi、及過濾入口閥V2與逆洗用出口 閥v4開啓，將其他閥部關閉）’從空氣注入配管1 6，將壓 縮空氣注入到供水配管12 ’讓生水與空氣的氣液混合流體 流動於供水配管1 2進行空氣洗淨，將洗淨排水從配管1 7 排出。 在該空氣洗淨步驟’生水是以與平1常的過濾運轉時相 同的流量流動於供水配管1 2內’由設置在生水栗浦P 1附 近的空氣注入配管16所吹入的空氣與生水會成爲混合流 體，藉由流動於供水配管12內’而在配管12內產生紊流 ，將附著在配管1 2的內壁的微生物等的 '污染物予以剝離 -25- 201002443 去除。包含該剝離去除的微生物塊等的雜質的氣液混合流 ，會通過過濾入口閥V2 ’流入到局部配管1 3，而藉由將 逆洗用出口閥V4開啓，將其他閥部v3、v5、v6關閉，則 幾乎不會進入到過濾器2內，從配管1 7排出到系統外。 藉由該空氣洗淨步驟，將過濾器2的供水配管之中， 上述的連接部X2的上游側的配管1 2予以空氣洗淨。該空 氣洗淨步驟1的空氣混合水用的洗淨水，並不限於生水， 也可以使用過濾處理水、或其他系統的水。 (2) 停歇步驟1 在上述空氣洗淨步驟1之後，立刻實施下次步驟也可 以，隔介著停歇步驟也可以。有無停歇步驟對洗淨效果沒 有特別影響。 當進行停歇步驟時，將所有閥部關閉，並且使生水泵 浦Pi、逆洗用泵浦p2、p3停止。 (3) 空氣洗淨步驟2(過濾處理水配管空氣洗淨步驟）（第13 圖） 在空氣洗淨步驟2，與第6圖〜第1〇圖所示的過爐裝 置的空氣洗淨步驟2同樣地，將過濾入口閥v2、過濾出 口閥V3、空氣入口閥V7、陽離子交換入口閥VlQ、及洗淨 出口閥V8開啓’將其他閥部關閉，使生水泵浦Pl作動（逆 洗用泵浦P2、P3停止），從空氣流入配管21，將壓縮空氣 注入到處理水配管1 5，並且將生水槽1內的生水經過配管 -26- 201002443 11、配管12、及配管13，而導入到過濾器2，將來自配管 1 4的處理水與空氣的空氣混合水流動於處理水配管1 5進 行空氣洗淨，藉由將洗淨排水從配管22排出，將過濾處 理水配管1 5內的污染物質剝離去除而排出到系統外。 該空氣洗淨步驟2，不一定要在逆洗步驟1之前進行 ，在逆洗步驟1之後進行也可以。在空氣洗淨步驟1之前 進行也可以，在最終洗淨步驟之後進行也可以。而與實施 方式2同樣地，該空氣洗淨步驟2可以適當省略。 (4 )停歇步驟2 在上述空氣洗淨步驟2之後，立刻實施下次洗淨步驟 也可以，隔介著停歇步驟也可以。有無停歇步驟對洗淨效 果沒有特別影響。 當進行停歇步驟時，將所有閥部關閉，並且使生水泵 浦P!、逆洗用泵浦P2、P3停止。 (5)逆洗步驟（第14圖） 在空氣洗淨步驟1，雖然可以進行過濾器2的供水配 管1 2部分的剝離洗淨，而除了無法進行：供水配管之中 ，逆洗用排水配管1 7的連接部x2的下游側的配管1 3部 分的洗淨之外，還可能讓空氣洗淨時的洗淨水，與剝離的 微生物等一起局部流入到該配管13部分或過濾器2內的 入口部分。 同樣地，在空氣洗淨步驟2，對於成爲陽離子交換塔 -27- 201002443 可 的 、2 及 出 I 、 水 水 配 22 洗 能 處 繁 13 換 略 的 4的供水配管的過濾處理水配管1 5部分的剝離洗淨雖然 以進行，而該配管之中，連接部X5的下游側的配管23 部分則無法進行洗淨。 於是在本發明，在進行過上述的空氣洗淨步驟1 或空氣洗淨步驟1之後’進行逆洗步驟，將過濾器2內 配管13、23部分及陽離子交換塔4內予以洗淨。 在逆洗步驟中，將逆洗用入口閥V5、v13及逆洗用 口閥v4、v8開啓，將其他閥部關閉，使逆洗用泵浦P: P3作動，讓生水泵浦P 1停止，使來自系統外的逆洗用 ，經過配管19及配管14逆流到過濾器2，將逆洗用排 經過配管1 3及配管1 7排出到系統外。將逆洗用水經過 管3 0、24逆流到陽離子交換塔4，經過配管23及配管 排出到系統外。 藉此，將過濾器2內及陽離子交換塔4內與在空氣 淨步驟1、2沒有洗淨的配管1 3、2 3部分予以洗淨’而 將污染物排出到系統外。 上述過濾器2的逆洗處理與陽離子交換塔4的逆洗 理，也可同時進行，也可分別進行。當分別進行時’哪 個處理先進行都可以。 配管23及陽離子交換塔4，是讓與生水相較爲生物 殖的問題較少的過濾處理水流通，所以不需要像配管 或過濾器2那樣頻繁地進行空氣洗淨，所以該陽離子交 塔4及成爲該供水配管的配管23的逆洗處理可適當省 、或者也可以用較配管13或過濾器2的逆洗處理更少 -28- 201002443 頻率來進行。 (6) 停歇步驟3 在上述逆洗步驟之後，立刻再開始進行過濾運轉也可 以，在進行過後述的最終洗淨步驟1、2或空氣洗淨步驟3 之後，再開始進行水處理運轉也可以，在水處理運轉或後 述的洗淨步驟之間隔介有停歇步驟也可以。 有無停歇步驟對洗淨效果沒有特別影響。當進行停歇 步驟時，將所有的閥部關閉，並且使生水泵浦Pi、逆洗用 栗浦P 2、P 3停止。 (7) 最終洗淨步驟1 ' 2 (第1 5圖、第1 6圖） 當進行過濾器2的最終洗淨時，與第1圖〜第1 〇圖 的過濾裝置的情況同樣地，將過濾入口閥 V2及洗淨出口 閥V6開啓，將其他閥部關閉，使生水泵浦P!作動，讓逆 洗用泵浦P2、P3停止，將生水槽1內的生水經過配管i ! 、配管1 2及配管1 3導入到過瀘器2，經過配管14、配管 20及配管1 7而排出到系統外（第1 5圖）。 當進行陽離子交換塔4的最終洗淨處理時，將過濾人 口閥V2及過濾出口閥V3與陽離子交換入口閥V]Q及洗淨 出口閥V!2開啓，將其他閥部關閉，使生水泵浦P,作動， 讓逆洗用泵浦P2、P3停止，將生水槽1內的生水經過配 管11、配管12及配管13導入到過濾器2，又經過配管14 '配管15'及配管23’導入到陽離子交換塔4後，經過 -29- 201002443 配管24、配管29、及配管22排出到系統外。 在經過上述一連串的洗淨步驟之後，再將過濾入口閥 V2及過濾出口閥V3與陽離子交換入口閥Vl()及陽離子交 換出口閥V ! 5開啓，將其他閥部關閉，使生水泵浦P !作動 ，使逆洗用泵浦P 2、P 3停止’再開始進行生水的水處理 運轉。 在如陽離子交換塔的充塡有陽離子交換樹脂的離子交 換塔，藉由塔內的陽離子交換樹脂將微生物繁殖所需要的 微量金屬離子去除，所以針對離子交換塔以後的配管，不 會有微生物繁殖的問題。於是，針對離子交換塔的離子交 換處理水流通的配管，並不需要特別進行空氣洗淨，而也 不是完全沒有微生物繁殖的可能性，所以也可以因應需要 ，或者以較其他洗淨步驟更低的洗淨頻率，針對離子交換 塔以後的配管進行空氣洗淨。 第1 1圖〜第1 7圖所示的水處理裝置，設置有空氣注 入配管31，當將陽離子交換處理水配管進行空氣洗淨時， 如弟17圖所不，將過爐入口閥V2、過減出口閥V3、陽離 子交換入口閥Vlt)、陽離子交換出口閥V15、空氣入口閥 V μ、及洗淨出口閥VM開啓，將其他閥部關閉，使生水 泵浦Pi作動（讓逆洗用泵浦P2、P3停止），將生水槽1內 的生水經過配管1 1、配管1 2、及配管1 3導入到陽離子交 換塔4，將來自配管24、25的陽離子交換處理水，與來自 空氣注入配管31的空氣一起成爲空氣混合水通過配管26 ’藉此將陽離子交換處理水配管2 6進行空氣洗淨，將洗 -30- 201002443 淨排水從配管2 8排出到系統外。 當進行該陽離子交換處理水配管26的空氣洗淨時， 也不限於將來自生水槽1的生水進行過濾處理及陽離子交 換處理所得到的處理水，也可使用來自系統外的工業用水 等的水來進行空氣洗淨，而用處理水槽3內的水來進行空 氣洗淨也可以。 空氣注入配管3 1是連接於逆洗用水配管3 0 ’以使用 來自系統外的水的空氣混合水來將陽離子交換處理水配管 予以洗淨也可以。 [空氣洗淨條件] 在將過濾器或陽離子交換塔等的水處理裝置的供水配 管予以洗淨的上述空氣洗淨步驟1，空氣的注入量太少的 話，微生物的剝離效果會很小，爲了獲得足夠的洗淨效果 ，而需要將空氣洗淨步驟增長，會讓運轉效率降低，並且 排水量增加而並不適合。可是，如果要增加空氣注入量的 話，則爲了注入壓縮空氣要將壓縮機等的裝置大型化，消 耗電力會增加等，而有損經濟性。於是’空氣注入量、空 氣洗淨步驟的洗淨時間，希望調整成：除了可抑制洗淨成 本之外，還可獲得較好的洗淨效果。 在本發明的空氣洗淨步驟1 ’空氣的注入量’爲洗淨 對象的供水配管的每單位剖面積1cm2爲4〜l〇L/min’最 好是4〜5L/min，空氣洗淨步驟的洗淨時間，能夠是以下 述式子（I)計算出的基準時間T(分鐘）的三倍以上較佳。 -31 - 201002443 Τ = { SxLxO.OO 1 /w } ... (I) (S爲供水配管的剖面積（cm2)，L爲空氣混合水流動的供 水配管的長度（第1圖的供水配管12的長度）（crn)，W爲洗 淨時的通水量（L/min))。 空氣注入量少於上述範圍的話’無法得到足夠的洗淨 效果，太多的話則經濟性不佳。 洗淨時間如果小於上述基準時間τ的三倍’則無法得 到足夠的洗淨效果。可是洗淨時間太長的話又不好’所以 洗淨時間爲上述基準時間τ的五倍以下較佳。 空氣洗淨時的通水速度，通常爲0·5〜2m/s左右，空 氣洗淨時的通水量會因爲配管的剖面積而不同。 針對用來進行逆洗用水配管或處理水配管的空氣洗淨 處理的空氣洗淨步驟2、3的空氣洗淨條件’這些配管不 像供水配管有微生物繁殖的問題’相較於供水配管的空氣 洗淨條件，用洗淨力較低的洗淨條件也可以’用與空氣洗 淨步驟1的洗淨條件相同的條件來進行也可以° 例如，在本發明的空氣洗淨步驟2、3 ’空氣的注入量 ，爲洗淨對象的逆洗用水配管或處理水配管的每單位剖面 積lem2爲4〜lOL/min ’空氣洗淨步驟的洗淨時間’能夠 是以下述式子（1，）計算出的基準時間T 1 (分鐘）的三倍以上 較佳。 -32- 201002443 τ' = { S'xL’xO.OOl/W1 } ... (Γ) (s'爲逆洗用水配管或處理水配管的剖面積（cm2)，爲空氣 混合水流動的逆洗用水配管或處理水配管的長度（第1圖的配 管19、15的長度）（cm)，W1爲洗淨時的通水量（L’/min))。 空氣注入量少於上述範圍的話，無法得到足夠的洗淨 效果，太多的話則經濟性不佳。 洗淨時間如果小於上述基準時間的三倍，則無法得 到足夠的洗淨效果。可是洗淨時間太長的話又不好，所以 洗淨時間爲上述基準時間Τ’的五倍以下較佳。 空氣洗淨時的通水速度’通常爲〇·5〜2m/s左右，空 氣洗淨時的通水量會因爲配管的剖面積而不同。 [各洗淨步驟的時間] 本發明的上述空氣洗淨步驟1〜3、逆洗步驟、以及因 應需要進行的最終洗淨步驟、停歇步驟的具體時間，雖然 沒有特別限制，而通常以下述時間來進行較佳。 空氣洗淨步驟1: 1〜10分鐘 空氣洗淨步驟2、3: 1〜10分鐘 逆洗步驟：5〜15分鐘 停歇步驟：5分鐘以下 最終洗淨步驟：5〜1 0分鐘 [水處理裝置的處理對象生水] -33- 201002443 該本發明的水處理裝置供水配管的洗淨方法’對於微 生物容易繁殖’包含有機物較多的排水’尤其是包含微生 物的營養鹽的磷及/或氮的排水，來進行處理的水處理裝 置的供水配管的洗淨很有效’而所適用的有機物含有排水 的水質，例如列舉出下述的水質。 <有機物含有排水水質> 有機物濃度：〇·1〜l〇〇mg/L(as TOC) SS 濃度：0〜l〇mg/L 磷濃度：0.1〜l〇〇〇mg/L(as P) 氮濃度·· 〇· 1 〜20mg/L(as N) [水處理裝置] 在本發明作爲洗淨對象的水處理裝置的構造等並沒有 特別限制，只要是水處理裝置具備有：在內部充塡有水處 理材，定期性或因應需要進行逆洗處理的水處理裝置主體 、及其逆洗機構的話，藉由將空氣注入配管連接到供水配 管，或者藉由將空氣注入配管連接到處理水配管，都能夠 有效地使用。 對於水處理裝置主體的通水方向並沒有特別限制，不 管是向上流方式或向下流方式都可以。 而水處理材，除了砂子、無烟煤、惰性樹脂之外，還 可使用廢離子交換樹脂等的各種濾材，而離子交換樹脂或 活性碳也可以。 -34- 201002443 適用本發明的水處理裝置供水配管的洗淨方法的水處 理裝置的水處理裝置主體，例如下述的構造，而並不是限 定爲這些構造。 (1) 在內部充墳有作爲水處理材的濾材的過濾器。 (2) 在內部充塡有作爲水處理材的離子交換樹脂的離子 交換塔。 (3) 在內部充塡有作爲水處理材的離子交換樹脂的軟水 器。 (4) 在內部充塡有作爲水處理材的活性碳的活性碳塔。 [實施例] 以下列舉出實驗例及實施例來更具體地說明本發明。 [實驗例1] 爲了調查：空氣洗淨時的空氣注入量、通水量、空氣 洗淨時間、與供水配管的長度的關係，進行實驗將有機物 含有水通水到15A的透明氯乙烯配管（剖面積1.8cm2)，以 兩天一次的頻率注入空氣進行空氣洗淨。有機物含有排水 的通水量爲定量的 8_3L/min，而空氣注入量與注入時間（ 空氣洗淨步驟的時間）則進行各種變更。 該實驗進行兩個月之後，在與空氣注入點相距5m、 1 5m、3 0m的各點，以目視方式觀察配管內壁的微生物的 附著狀況，如果認爲沒有附著微生物而得到充分的洗淨效 果的話則評價爲「〇」’認爲有附著微生物而洗淨效果不 -35- 201002443 足夠的話則評價爲「χ」’而以表1〜3顯示結果。 從表1〜3可以看出’用來獲得充分的空氣洗淨效果 的空氣注入量或空氣洗淨時間，具有其下限，針對洗淨時 間，Τ= {配管剖面積（1.8cm2)x配管長度（50〇cm、1 500cm 或 3000cm)x0_001+通水量（8.3L/min)}(分鐘）的三倍以上 較佳。 [表1] _與空氣注入點相隔的距離(5m) 空氣洗淨步驟時間(秒） 20 40 60 80 空氣注入量 (L/min/cm) 2 X X X 〇 4 〇 _ • 6 _ • 8 - • 10 - - - _ [表2] _與空_^注入點相隔的距離（15m) 空氣洗淨步驟時間(秒） 20 40 60 80 空氣注入量 (L/min/cm) 2 _ • 一 X 4 X X 〇 〇 6 X 〇 _ 8 〇 • 10 - - - -36- 201002443 【寸概】 最終洗淨 i 10分鐘 τπτ~> τττΤ^ S EO fife mz7 τπ1^ ΠΕ2 nE. Si ΰτϊ~> ΓΤΤΚ no nH 運轉 停止 第5圖 停歇3 i 5分鐘 mt7 HII^ ttTn 跟 ΠΙΖ^ eE ss EZ7 nw □o γττΝγ L停止 停止 逆洗 10分鐘 EH EZ3 hlEI EZ2 mT7 Si w mr? TnN mz7 mr^ EZ7 tnN 停止 [運轉 第4圖 停歇2 5分鐘 mo mT? EZJ Sr S m〇 mT? BZ2 τπΤ7 E trrr^ ΠΓ7 mN 停止 停止 空氣洗淨2 5分鐘 HIZ^ ΓττΤ^ ΕΓ2 Ee Si si ΠΙΖ7 τττΤ^ mn E5 Si K 停止 運轉 第3圖 停歇1 1分鐘 ΠΖ2 mR nn? E& IDZZJ EE nz^ mT? ΠΙΤ~> mN eo rnr^ nenj Eh no 停止 停止 空氣洗淨1 5分鐘 Si nnn ΠΤΠΝ ΠΙΖ7 γττγ7 ΠΙΓ^ Si ΙΠΓ7 mi^ me IE2 nrP 運轉 停止 第2圖 步驟名稱 步驟時間 空氣入口閥Vi 過濾入口閥v2 過濾出口閥v3 逆洗用入口閥V5 逆洗用出口閥v4 洗淨出口閥v6 空氣入口閥v7 洗淨出口閥V8 生水泵浦Pi 逆洗用泵浦p2 圖面 -38- 201002443 [表3] 與空氣注入點相隔的距離（30m) 空氣洗淨步驟時間(秒） 20 40 60 80 100 120 空氣注入量 (L/min/cm) 2 _ - _ _ X 4 _ X X X 〇 6 _ X 〇 _ _ 8 • 〇 _ 10 〇 - - - _ - [實施例1] 在將下述水質的過濾生水進行過濾處理的第1圖的過 濾裝置（濾材：無烟煤），以下述表4顯示的時序圖來進行 泵浦與閥的開閉，生水的過濾運轉是以每兩天一次的頻率 來進行：空氣洗淨步驟1、停歇步驟1、空氣洗淨步驟2、 停歇步驟2、逆洗步驟、停歇步驟3、及最終洗淨步驟的 一連串的洗淨處理。 <過濾生水水質> 有機物濃度：5mg/L(as TOC) SS 濃縮：lmg/L 磷濃度：5 00mg/L(as P) 氮濃度：5mg/L(as N) -37- 201002443 供水配管的剖面積爲1 . 8cm2，空氣混合水通過的供水 配管的長度（配管12的長度）爲500cm，非空氣洗淨部的供 水配管的長度（配管13的長度）爲20cm ’過濾時的通水量 爲2L/min，空氣注入量爲4L/min，逆洗處理時通水量爲 2L/min(基準時間T爲0.45分鐘）。 逆洗用配管的剖面積爲1 .8cm2，處理水配管的剖面積 爲1.8cm2，空氣混合水通過的逆洗用供水配管及處理水配 管的長度（配管19及配管15的總計長度）爲500cm，非空 氣洗淨部的處理水配管1 4的長度爲1 0 cm，配管2 3的長 度爲5cm，空氣洗淨步驟2的處理水通水量爲2L/min，空 氣注入量爲4L/min(基準時間Τ’爲0.45分鐘）。 結果’在持續了 6個月的運轉之後，認爲在供水配管 沒有微生物附著、繁殖的情形，可以持續穩定運轉。 本發明使用了特定的實施方式來詳細說明，而習知技 藝者了解可在不偏離本發明的技術思想與範圍的情形進行 各種變更。 本申請案是根據2008年3月21日申請的日本專利申請 案（日本特願2008-073918)，藉由引用來沿用其全體內容。 【圖式簡單說明】 第1圖是顯币本發明的水處理裝置供水配管的洗淨方 法的實施方式的過濾裝置的系統圖。 第2圖是第1圖的過濾裝置的空氣洗淨步驟〗（供水配 管空氣洗淨步驟）的說明圖。 -39- 201002443 第3圖是第1圖的過濾裝置的空氣洗淨步驟2(逆洗用 配管及處理水配管空氣洗淨步驟）的說明圖。 第4圖是第1圖的過濾裝置的逆洗步驟的說明圖。 第5圖是第1圖的過濾裝置的最終洗淨步驟的說明圖。 第6圖是顯示本發明的水處理裝置供水配管的洗淨方 法的其他實施方式的過濾裝置的系統圖。 第7圖是第6圖的過濾裝置的空氣洗淨步驟1 (供水配 管空氣洗淨步驟）的說明圖。 第8圖是第6圖的過濾裝置的空氣洗淨步驟2(處理水 配管空氣洗淨步驟）的說明圖。 第9圖是第6圖的過濾裝置的逆洗步驟的說明圖。 第10圖是第6圖的過濾裝置的最終洗淨步驟的說明 圖。 第1 1圖是顯示本發明的水處理裝置供水配管的洗淨 方法的其他實施方式的水處理裝置的系統圖。 第1 2圖是第1 1圖的水處理裝置的空氣洗淨步驟1 (供 水配管空氣洗淨步驟）的說明圖。 第13圖是第11圖的水處理裝置的空氣洗淨步驟2 (過 濾處理水配管空氣洗淨步驟）的說明圖。 第14圖是第11圖的水處理裝置的逆洗步驟的說明圖 〇 第1 5圖是第1 1圖的水處理裝置的最終洗淨步驟1的 說明圖。 第1 6圖是第1 1圖的水處理裝置的最終洗淨步驟2的 -40- 201002443 說明圖。 第1 7圖是第1 1圖的水處理裝置的空氣洗淨步驟3 (陽 離子交換處理水配管空氣洗淨步驟）的說明圖。 【主要元件符號說明】 1 :生水槽 2 :過濾器 3 :處理水槽 4 :陽離子交換塔 1 1 :配管 1 2 :供水配管 1 3 :配管 1 4 :配管 1 5 :處理水配管 1 6 :空氣注入配管 1 7 :逆洗用排水配管 18 :配管 1 9 :逆洗用水配管 20 :配管 21 :空氣注入配管 22 :配管 2 3 :配管 24 :處理水配管 2 5 :配管 -41 - 201002443 26 :陽離子交換處理水配管 27 :配管 28 :洗淨排水配管 3 0 :逆洗用水配管 3 1 :空氣注入配管 P1 :生水栗浦 p2 :逆洗用栗浦 P3 :逆洗用泵浦 V!:空氣入口閥 V 2 :過濾入口閥 V 3 :過濾出口閥 v4 :逆洗用出口閥 V 5 :逆洗用入口閥 V 6 :洗淨出口閥 V 7 :空氣入口閥 V 8 :洗淨出口閥 V 9 :處理水槽入口閥 v1():陽離子交換入口閥 V j !、V ! 2 :洗淨出口閥 V J 3 :逆洗用入口閥 v14 :空氣入口閥 v15:陽離子交換出口閥 X 1〜X 5 :連接部 x6〜x8 :配管連接部 -42 -201002443 6. TECHNOLOGICAL FIELD OF THE INVENTION [Technical Field] The present invention relates to a method for cleaning a water supply pipe of a water treatment device, in particular, for filtering water containing organic matter containing a large amount of organic matter and easily multiplying microorganisms. The water treatment device of the water treatment device such as the sputum device is used to efficiently clean the water supply pipe. [Prior Art] A filter device is a filter bed formed by filtering a filter such as sand or anthracite in a filter to remove impurities such as SS and remove it. The operation of the filter device is usually performed interactively: filtering The raw water is subjected to a filtration operation in which the treated water is obtained, and a backwashing water is introduced into the filter to discharge the sS or the like captured by the filter bed (for example, Patent Document 1). In such a filtration device, in the case where the raw water containing a large amount of organic matter and the microorganisms are easily propagated, the microorganisms contained in the raw water and captured by the filter bed or the microorganisms which are propagated in the filter bed are used by The backwashing treatment is washed and removed. However, on the water supply pipe from the raw water tank to the raw water between the filters, the microorganisms that have been attached and propagated cannot be washed and removed by the backwashing treatment, and the result of the microbial growth after the passage of time will allow the water supply. The microorganisms that are closed by the piping or attached to the piping will agglomerate and flow into the filter. The sealing of the piping is a major problem. When the microbial block peeled off from the pipe flows into the filter, it is difficult to discharge it by the usual backwashing process because its specific gravity is close to the filter material. Moreover, mud particles are formed due to the viscous material and the filter material produced by the microorganisms accumulated in the filter, and as a result, the filter bed is closed, or the filtration performance is lowered due to the short passage of the filter medium. In order to solve these problems, a conventional method is to inject a sterilizing agent into raw water to prevent microbial growth. The maintenance work is carried out on a regular basis, and the piping is cleaned and the filter material of the filter is replaced. [Patent Document 1] Japanese Patent No. 3, 4, 603, 241, in the conventional sterilizing treatment by a chemical, it is necessary to perform a complicated daily operation such as adjustment and replenishment of the amount of the medicine to be injected, and it is necessary to handle harmful chemicals. The environmental point of view is not suitable, and it costs a lot of medicines. In particular, if the amount of water to be treated is increased, the cost of the medicine will be large. Since the medicine may be mixed into the filtered water, it is necessary to remove the medicine when using the filtered water. The method or the need to rinse with a large amount of water after the chemical is washed may cause the above problems, and the utility is not good. The piping cleaning of the regular maintenance work or the filter material replacement of the filter is not good in terms of operation efficiency because it is necessary to stop the operation of the filter unit. Therefore, there is a problem with the amount of work or the cost of the filter material. Therefore, there is a need for a method of cleaning the water supply pipe of the filter without sterilizing with a drug or stopping the operation of the filter device. The method described in Patent Document 1 is carried out by combining an air backwashing treatment and a backwashing treatment with an alkali and/or an acid, and the backwashing water is used in addition to the alkali and/or acid. The flow in the countercurrent direction flows through the 泸-6 - 201002443 and is discharged from the filter, so the water supply pipe cannot be washed. The problem of cleaning the water supply pipe is not limited to a filtration device, such as an ion exchanger, a water softener, or an activated carbon column, and is actually filtered by a water treatment material such as an internal ion exchange resin or activated carbon. All devices that function, periodically or in response to backwashing, have common problems. SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a method for cleaning a water supply pipe of a water treatment device, which can sufficiently clean a water supply pipe of a water treatment device such as a filter device, even if it is used for In the case where the organic matter which is easily propagated by the microorganisms contains water, the treatment can be continued for a long period of time and stably. In the method for cleaning a water supply pipe of a water treatment device according to the present invention, the water treatment device is filled with a water treatment material, and the main body of the water treatment device is periodically or in need of backwashing, and the raw water is supplied to the main body of the water treatment device. a water supply pipe, a treated water pipe for taking out the treated water from the water treatment device main body, a backwashing water pipe for supplying the backwash water to the water treatment device main body, and a water supply pipe for connection to the backwashing drain The backwashing drain pipe that is discharged to the outside of the system is characterized in that the air mixed water is supplied to the upstream side of the connection portion of the backwashing drain pipe and the water supply pipe, and the air is mixed. The air is removed from the backwashing drain pipe through the connection portion, and the backwash water is supplied to the water treatment device main body, and the backwashing water is discharged from the water treatment device main body 201002443 through the connection. The water supply pipe is washed by a backwashing step of discharging the backwashing drain pipe. In the present invention, the air injection amount to the water supply pipe in the air cleaning step is 4 to 10 L / mi η per unit sectional area of the water supply pipe, and the washing time of the air washing step is ' It can be three times or more the reference time Τ (minute) calculated by the following formula (I) (second invention). Τ = { SxLxO. OO 1 /W } (I) (S is the cross-sectional area (c m2) of the water supply pipe, L is the length (cm) of the water supply pipe through which the air mixed water flows, and W is the water flow amount at the time of washing (L/min) )). After the backwashing step, a final washing step of supplying raw water to the water treatment device main body through the water supply pipe and discharging the effluent water from the main body of the water treatment device to the outside of the system may be performed (third invention) . Further, a treatment water pipe cleaning step (fourth invention) in which the air-mixed water is supplied to the treated water pipe and then discharged to the outside of the system may be performed. In the case where the treatment water tank for storing the treated water from the treated water pipe and the treated water in the treated water tank are supplied as backwash water to the backwashing water pipe of the water treatment device main body, before the backwashing step 'There may be a step of supplying the air-mixed water to the backwashing water pipe and discharging it to the backwashing water pipe outside the system (the fifth invention) 'in this case, if the device is constructed in the water treatment device When the backwashing water pipe is connected to the treated water pipe in the vicinity of the treated water discharge port of the main body, -8-201002443 can also be carried out: the air mixed water is used, and the backwashing water pipe and the treated water pipe are passed from the backwashing water pipe. The connection unit flows to the treatment water pipe in the direction of the flow of the treated water, and then discharges the backwash water pipe and the treated water pipe air washing step outside the system (the sixth invention). In the present invention, the following structure is exemplified as the main body of the water treatment apparatus (the seventh to tenth inventions). (1) A filter is used as a filter for the water treatment material. (2) An ion exchange column which is internally filled with an ion exchange resin as a water treatment material. (3) A water softener filled with an ion exchange resin as a water treatment material. (4) An activated carbon column which is internally filled with activated carbon as a water treatment material. The method of cleaning the water supply pipe of the water treatment device of the present invention can be applied, for example, to the cleaning of the water supply pipe of the water treatment device in which the organic matter contains water as raw water (the first invention). In the cleaning method of the water supply pipe of the water treatment device according to the present invention, in the air cleaning step, the water is mixed with water, and the connection portion of the backwashing drainage pipe of the water supply pipe is washed further upstream, and is adhered to the pipe. When a pollutant such as a wall or the like is efficiently washed and peeled off, it can be discharged from the backwashing drain pipe to the outside of the system. In the air washing step, the air-mixed water flows only to the connection portion of the backwashing drain pipe of the water supply pipe, and the water supply pipe from the connection portion to the water treatment device main body is not washed. The length of the pipe from the connection portion to the main body of the water treatment device is short, and the necessity of cleaning the portion is low, and impurities such as microorganisms which are peeled off during air cleaning flow into the portion, and more May flow into the main stomach of the water treatment device. In the present invention, after the air washing step, the backwashing water is supplied to the water treatment device main body, and the backwashing water from the water treatment device main body is passed through the connecting portion from the backwashing In the backwashing step of draining the drain pipe, the water supply pipe or the water treatment device main body between the filter main body and the connecting portion can be cleaned, and even if the air is washed, the contaminated substances such as microorganisms which are peeled off flow into the body. This part can also be effectively discharged to the outside of the system through the backwashing drainage pipe. In the present invention, the air injection amount to the water supply pipe in the air cleaning step is 4 to 1 OL/min per unit sectional area of the water supply pipe, and the cleaning time of the air cleaning step can be expressed by the following formula ( I) The calculated reference time T (minutes) is three times or more, whereby more efficient washing can be performed, and a better washing effect can be obtained (second invention). T = { SxLxO. OOl/W } . . . (I) (S is the sectional area of the water supply pipe (cm2), L is the length (cm) of the water supply pipe through which the air mixed water flows, and w is the amount of water (L/min) at the time of washing. After the backwashing step, by doing: The raw water is supplied to the water treatment device main body via the water supply pipe, and the effluent water from the main body of the water treatment device is discharged to the final washing step outside the system. By using this, after washing and then starting operation, High-quality treated water can be obtained (third invention). Periodically or in response to the need to: The air-mixed water is supplied to the treated water piping and then discharged to the treated water piping outside the system to clean the air. -10- 201002443 Procedure, Then, the contaminant such as microorganisms in the water pipe can be peeled off and washed (fourth invention). Has: a treatment tank for storing treated water from a treated water pipe, And the case where the treated water in the treatment tank is supplied as backwash water to the backwashing water pipe of the water treatment apparatus main body, Before the backwashing step, By doing: The air-mixed water is supplied to the backwashing water pipe and then discharged to the backwashing water pipe air cleaning step outside the system. Then, the pollutants such as microorganisms in the backwashing water pipe can be peeled off and washed. It can prevent the pollutants in the backwashing water pipe and the backwashing water, The backwashing step is carried into the main body of the water treatment apparatus (the fifth invention). In the washing step of the backwashing water pipe, Mix the air with water, From the backwashing water piping, a connection portion between the backwashing water pipe and the treated water pipe, Circulate to the treatment water piping, Then drained out of the system, Thereby, the treated water pipe can be washed together with the backwashing water pipe (the sixth invention). [Embodiment] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present invention, The step of washing the air for supplying the water supply pipe of the water treatment device is referred to as "air cleaning step 1". The step of washing the air for treating the water pipe or the backwashing water pipe of the water treatment device is called "air washing step 2" or "air washing step 3". [Embodiment 1] First, An example of -11 - 201002443 of the embodiment of the present invention will be described with reference to Figs. 1 to 5 . 1 to 5 are system diagrams showing a filter device according to an embodiment of a method for cleaning a water supply pipe of a water treatment device according to the present invention. 2 is a display view of the air washing step 1 (water supply pipe air washing step) of the present invention, Fig. 3 is a view showing the air washing step 2 (the step of cleaning the backwashing pipe and the air washing step of the treated water pipe). Figure 4 is a view showing the backwashing step of the present invention, Fig. 5 is a view showing the final washing step of the present invention. In Fig. 2 to Fig. 5, the piping for fluid circulation, Compared to piping in which the fluid does not flow, It is displayed in a thicker solid line. The fluid flow valve is blacked out. In Figures 1 to 5, 1 is a raw water tank, 2 is the filter, 3 is to handle the sink, P! Is a raw water pump, P2 is a backwash pump, \^, V7 is an air inlet valve, V2 is a filter inlet valve, V3 is a filter outlet valve, V4 is the backwashing outlet valve, V5 is an inlet valve for backwashing. V6, V8 is a wash outlet valve, V9 is the treatment tank inlet valve. 11 to 23 indicate piping. Χι~x5 indicates the piping connection. The air injection pipe 16' is provided in the vicinity of the discharge portion of the raw water pump Pi, 'the connection portion Xi of the normal air injection pipe 16 and the water supply pipe 12, With raw water pump P! The piping distance of the discharge portion is 50 cm or less. The connection portion X2 of the piping for draining the backwash (backwashing drain pipe) 17 and the water supply pipe 1 2 The pipe distance ‘ from the raw water inlet 2A of the filter 2 is the length of the pipe 13, Usually about 20~200cm. Air injection pipe 2 1, Set near the discharge of the backwash pump P2, Usually, the connection portion between the air injection pipe 21 and the backwash water pipe 19 is -12-201002443 χ4. The piping distance from the discharge portion of the backwashing pump p2 is 50 cm or less. The connection portion X3 of the backwashing pipe 19 and the treated water pipe 15 is The distance from the pipe to the treated water discharge port 2 B of the filter 2, that is, the length of the pipe 14 is usually about 20 to 200 cm, and the backwashing water pipe 19 is disposed in the treated water discharge port of the filter 2 in the treated water pipe. Near 2B. The connection portion X5 between the piping (washing drainage pipe) 22 and the treated water pipe 15 for discharging the washing water of the backwashing water pipe 1 and the treated water pipe 15 The piping distance from the treated water inlet 3 A of the treatment tank 3, That is, the length of the pipe 23, Usually about 50~500cm. It is not limited to the filtering device of Fig. 1 to Fig. 5, In any water treatment unit, Air injection piping, Is to let the air not enter the pump, Connected to the discharge side of the pump. When the raw water is filtered, Will filter the inlet valve V2 Filter outlet valve V3, And handle the sink inlet valve V9 open' to close the other valves, Make the raw pump Pi act, Stop the backwash pump P2, Raw water in the raw water tank 1, After piping 1 1 Piping 1 2 And the pipe 13 is introduced into the filter 2, Filtering, Filtering the treated water through the piping 1 4 The pipe 15 and the pipe 2 3 are introduced into the treatment tank 3. By continuing this filtering operation, Because of the dirt inside the system, Produce an increase in pressure loss, Or other missing situations, Or after continuing the predetermined filtration operation, The cleaning is carried out in the order of (1) to (7) described below. (1) Air washing step (water supply piping air washing step) (Fig. 2) The raw water pump Pi is kept running. Open the air inlet valve Vi and backwash with -13- 201002443 port valve v4, The filter outlet valve V3 and the treatment tank inlet valve V9 are closed (that is, only the air inlet valve V! , After the inlet valve V2 and the backwashing outlet valve v4 are opened, Other valves are closed), Injecting compressed air into the water supply pipe 1 2 from the air injection pipe 16' Let the gas-liquid mixed fluid of raw water and air flow through the water supply pipe. 2 Clean the air. The washing drain is discharged from the piping 17. In the air washing step 1, The raw water flows into the water supply pipe 1 2 at a flow rate equal to that during normal filtration operation. And by setting the pump P in the raw water pump! The air blown into the nearby air injection pipe 16 and the raw water become a mixed fluid. By letting it flow into the water supply pipe 12, Then turbulence is generated in the pipe 12, Contaminants such as microorganisms adhering to the inner wall of the pipe 12 are peeled off. And the gas-liquid mixed flow containing the impurities of the exfoliated microorganism block or the like passes through the furnace inlet valve V 2 , And flowing into the local piping 13, And by opening the backwashing outlet valve v4, Make other valve parts v3, V5, V6 is closed, Will almost never enter the filter 2, It is discharged from the piping 17 to the outside of the system. By the air washing step, In the water supply piping, The pipe 1 2 on the upstream side of the above-described connecting portion X2 is air-washed. The air washing step 1 is used to wash water for the air mixed water, Not limited to raw water, It can also be filtered to treat water, Or other system of water. (2) Stopping step 1 After the above air washing step 1, The next cleaning step can also be carried out immediately. It is also possible to separate the steps. There are no stopping steps and it will not be special -14- 201002443 affecting the washing effect. When the stop step is performed, Close all valves, And make the water pump Pl, Backwashing stops with Lipu P2. (3) Air washing step 2 (step of backwashing water pipe and treated water pipe air washing) (Fig. 3) In the filtering device of the present embodiment, a treatment water pipe for treating water circulation or a backwash water pipe, There may also be microbes that are not as serious as water supply pipes, Or contaminated matter, In particular, the contaminant adhering to the backwashing water pipe is peeled off during the backwashing treatment and flows into the filter 2, Will be the cause of the second pollution. therefore, For treating water piping, And a backwashing water pipe when the treated water is used as backwashing water, Air is also washed with air mixed water. Peel off the pollutants, It is better to discharge outside the system. therefore, In the air washing step 2, In order to wash the backwashing water pipe 19 and the treated water pipe 15 with air mixed water, Air inlet valve V7 and backwashing inlet valve V5, Filter the outlet valve V3, The cleaning outlet valve V8 is opened, Close the other valves, Make the backwash pump P2 (steam pump P! stop), Injecting the pipe 21 from the air, Injecting compressed air into the backwashing water pipe 1.9 a gas-liquid mixed fluid of treated water and air from the treatment tank 3 conveyed through the pipe 18, Air is washed from the backwashing pipe 1 through the connecting portion X3 to the treated water pipe 15 for air washing. The washing drain is discharged to the outside of the system by the pipe 22. In the air washing step 2, The treated water from the treatment tank 3, Although -15-201002443 is the same flow rate as the flow rate of the backwashing step described later, Flowing in the backwashing water pipe 19 and the treated water pipe 15, The air blown into the pipe 21 by the air provided in the vicinity of the backwashing pump P2 and the treated water, Flowing into the backwashing water pipe 1 9 and the treated water pipe 1 5 as a mixed fluid Thereby in the piping 19, Turbulence is generated within 15 Will be attached to the pipe 19, Contaminants such as microorganisms on the inner wall of 15 are peeled off. a gas-liquid mixed flow containing impurities such as the exfoliated microorganism block, Although it flows further into the partial piping 23' and closes the treatment tank inlet valve V9 provided near the inlet of the treatment tank, Will almost never enter the treatment tank 3, It is discharged to the outside of the system by the piping 22. By the air cleaning step 2, In the backwashing water piping, a backwashing water pipe of a portion between the connecting portion X4 and the connecting portion X3, Processing water piping, The treated water pipe 15 of the portion between the connecting portion X3 and the connecting portion X5 is air-washed. In the above air washing step 2, Although it is impossible to pipe the backwash water, Washing the pipe 1 8 on the upstream side of the chestnut P2 with backwashing, By using the backwashing pump P2 as close as possible to the treated water outlet 3 B of the treatment tank 3, Moreover, the non-washing portion of the pipe can be almost eliminated. but, When the length of the pipe 15 is about several m (1 to 5 m), A washing liquid introduction means is provided in the vicinity of the treatment tank 3 of the piping 15, The valve portion is disposed closer to the water tank side than the washing liquid introduction means. It is possible to perform a left and right washing process from several days to several weeks. The piping 14 between the connection portion x3 and the treated water discharge port 2B of the filter 2, The length of the pipe 14 is at most about 20 to 200 cm. There is no problem even if it is a non-washing portion between -16 and 201002443. In the case of the pipe 23' between the connection portion X5 and the treated water inlet 3A of the treatment tank 3, the connection portion X5 is also disposed near the treated water inlet 3A. By setting the length of the pipe 23 to 5 〇〇 cin or less , It is best to set it to 1 0 0~2 0 0 c m, Then, the non-washing portion can be almost eliminated. Air mixed water from the backwashing water pipe 19, Although it is possible to flow from the connection 邰X3 to the partial piping 14, On the other hand, the filter inlet valve γ2 and the backwashing outlet valve V 4 are closed, and there is almost no flow into the filter 2. This air washing step 2' prevents the pollutants in the backwashing water pipe from flowing into the filter 2 when the backwashing step is performed. And before the backwashing step, As long as it is before the backwashing step, It can be done before or after the above air washing step 1. Although the air washing step 2 can also be performed simultaneously with the air washing step 1, It is usually done separately. In the above air washing step 2, Although the backwashing water pipe is treated with the water pipe at the same time, the air is washed. Alternatively, the backwashing water piping and the treatment water piping may be separately washed. E.g, The air inlet valve 乂7 and the backwashing inlet valve V5, The cleaning outlet valve v6 is opened, Close the other valves, The backwashing pump P2 is actuated (the raw water pump Pi stops), The compressed air from the air injection pipe 21 and the gas-liquid mixed fluid from the treated water of the treatment tank 3 are flowed to the backwashing water pipe 1 9 for air washing. By discharging the washing drain through the connecting portion X3' from the pipe 20 to the outside of the system, It is possible to wash only the backwashing water pipe 1 9 . For treating water piping, The air washing step -17-201002443 step 2 of the second embodiment to be described later, An air injection pipe for injecting air into the treatment water pipe 15 is provided in advance. Injecting the air into the air inlet valve of the pipe, Filter inlet valve V2 Filter the outlet valve V3, And the cleaning outlet valve V8 is opened, Close the other valves, Let the water pump P! Actuate, Backwashing with pump P2 stops, The raw water is introduced into the filter 2 through the pipe 12 and the pipe 13, The gas-liquid mixed fluid of the treated water and the air from the filter 2 is caused to flow to the pipe 15 . By discharging from the pipe 2 2 to the outside of the system, It is possible to perform air cleaning of the treated water pipe 15 〇 However, in this case, Only for the washing treatment of the above-mentioned backwashing water piping, Better before the backwashing step, And only for the washing of the above-mentioned treated water piping, Preferably, after the backwashing step for washing the water supply pipe 13 is performed, Further, it may be carried out after the final washing step described later. The air washing step 2 is a mixture of washing water for the air, Not limited to treating water, It can also be raw water or other system water. This air cleaning step 2 is not necessary, Can be omitted as appropriate. That is to say, The raw water supply pipe 'has a microbial (mud ball) that is propagated in the raw water tank 1 and flows into it. Therefore, it is necessary to perform a relatively frequent cleaning process, and the treated water pipe or the backwash water pipe circulated by the raw water filtration treatment water does not have the problem of microorganisms such as water supply pipes for raw water. Therefore, the cleaning air cleaning step 2 for performing the backwashing water pipe or the treated water pipe, The air washing step 1 and the back washing step hereinafter described as a cleaning of the water supply pipe for producing raw water may be performed even if the washing frequency is low. It can also be omitted because of the quality of the treated water. -18- 201002443 (4) Stop step 2 After the above air cleaning step 2, It is also possible to carry out the backwashing step immediately. There is also a stop step. There are no steps to stop, There is no particular effect on the cleaning effect. In the case of a stop step, Close all valves, And will pump the Pi, Backwashing is stopped with pump p2. (5) Backwashing step (Fig. 4) As mentioned above, In the air cleaning step 1, Although the stripping of the water supply pipe 12 can be performed, However, except for the inability to: For water supply piping, The pipe 1 3 on the downstream side of the connection portion X2 of the backwashing drain pipe 1 is washed, In addition, there may be a part of the washing water in the air washing, and some of the microorganisms that have been peeled off, etc. The portion of the pipe 13 or the inlet portion of the filter 2. then, In the present invention, In the above air cleaning step 1, 2 or after air cleaning step 1, Carry out the backwashing step, The inside of the filter 2 and the piping 13 are washed. In the backwashing step, The backwashing inlet valve V5, And the backwashing outlet valve V4 is opened, Close the other valves, Make the backwash pump p2, Stopping the raw water pump P i 'to pass the treated water in the treatment tank 3 through the pipe 18 The pipe 1 9 and the pipe 1 4 flow back to the filter 2, The backwashing drain is discharged to the outside of the system through the pipe 13 and the pipe 17. By this, the portion of the pipe 1 in the filter 2 and the air washing step 1 which cannot be washed is cleaned, and the pollutants can be discharged outside the system. -19- 201002443 (6) Stop step 3 After the above backwashing step, It is OK to start the filtration operation immediately. It is also possible to restart the filtration operation after the final cleaning step described later. It is also possible to have a stop step at intervals between the filtration operation or the final cleaning step. There are no steps to stop, There is no particular effect on the cleaning effect. When the stop step is carried out, 'turn all valves off' and make the water pump P1 The reverse wash pump P2 stops. (7) Final cleaning step (Fig. 5) When the final cleaning process is performed, The filter inlet valve V2 and the purge outlet valve v6 are opened. Close the other valves, Make the raw water pump P i act, Stop the backwash pump P2, Raw water in the raw water tank 1 passes through the pipe 1 1 Piping 12, And the pipe 13 is introduced into the filter 2, After piping 14, The piping 20 and the piping 17 are discharged to the outside of the system. In Figures 1 to 5, a pipe 20 for discharging the washing drainage, Although connected to the backwashing drain pipe 17, And the piping 20, It is also possible not to be connected to the backwashing drainage pipe 17 . Directly drain the washing drain. The final cleaning process is not necessarily required, And by performing the final cleaning process, Then, the contaminants remaining on the outlet side of the filter 2 (contaminants peeled off from the filter material in the backwashing step) can be discharged. In the final washing treatment of the washing water, In addition to raw water, You can also use filtration to treat water, Or other systems of treated water. -20- 201002443 After the series of washing steps described above, the filtration inlet valve v2 and the over-exhaust valve V3 are opened again to close the other valve portions to activate the raw water pump Pi. The backwashing pump P2 is stopped and the raw water filtration operation is resumed. [Embodiment 2] Next, another example of the embodiment of the present invention will be described with reference to Figs. 6 to 10 . Figure 6 ~ Figure 10, It is a system diagram showing a filtration device of an embodiment of a method for cleaning a water supply pipe of a water treatment device according to the present invention. Wherein the seventh drawing is a display diagram of the air washing step 1 (water supply pipe air washing step) of the present invention, Figure 8 is a view showing the air washing step 2 (the water pipe cleaning step of the treated water pipe) of the present invention, Figure 9 is a view showing the backwashing step of the present invention, Fig. 1 is a view showing the final washing step of the present invention. In Figure 7 ~ Figure 1, a pipe through which the fluid flows, It is shown by a thicker solid line than a pipe that does not flow through the fluid. The valve portion of the fluid flow is blackened. The filtering device shown in Figures 6 to 10, It differs from the filter device shown in Figures 1 to 5 in that Not treating water, Is the tap water from outside the system, Backwashing is carried out with high-purity water such as industrial water. And a backwashing water pipe is provided. Backwashing inlet valve V5, And backwashing pump P2, Others are composed of the same structure. In Figure 6 to Figure 10, The members that achieve the same functions as those of the members shown in Figs. 1 to 5 are denoted by the same reference numerals. -21 - 201002443 The filter device, Raw water filtration treatment, Air cleaning step 1 (Fig. 7), Backwashing step (Fig. 9) and final washing step (Fig. 10), It is the air cleaning step 1 (Fig. 2) of the filter device shown in Figs. 1 to 5, The backwashing step (Fig. 4) and the final washing step (Fig. 5) are carried out in the same manner. Backwashing step and final washing step the following, Refer to Figure 8, The air cleaning step 2 for cleaning the air for treating the water piping will be described. In the filtration device of the present embodiment, In the backwashing water piping, Is industrial water, Water that does not propagate by microorganisms such as tap water flows, Therefore, it is not necessary to perform air washing for the backwashing water pipe 19. then, In the air cleaning step 2, Will filter the inlet valve V2 Filter the outlet valve V3, The air inlet valve V7 and the cleaning outlet valve V8 are opened. Close the other valves, Make a raw water pump P! Actuation (backwash with pump P2 stopped), Injecting the pipe 21 from the air, Injecting compressed air into the treated water pipe 15, And the raw water in the raw water tank 1 passes through the pipe 11, Piping 12 and piping 13, Imported to filter 2, The gas-liquid mixture of the treated water from the pipe 14 and the air flows through the treated water pipe 15 to perform air washing. By discharging the washing and draining water from the piping 22 to the outside of the system, The contaminant in the treated water pipe 15 is peeled off and discharged to the outside of the system. In the present embodiment, Air cleaning step 2, It does not necessarily need to be done before the reverse washing step, It is also possible to carry out after the backwashing step. It can also be done before the air cleaning step 1. It can also be done after the final washing step. In the same manner as in the first embodiment, The air cleaning step 2 can be adapted to -22-201002443 when omitted, The water used for air washing is not limited to raw water. It is also possible to use water from outside the system such as industrial water. [Embodiment 3] Next, Other examples of the embodiment of the present invention will be described with reference to Figs. 11 to 17 . 11 to 17 show an embodiment of a method of cleaning a water supply pipe of a water treatment device according to the present invention, It is a system diagram of a water treatment unit equipped with a filter and a cation exchange tower. among them, Fig. 12 is a view showing the air washing step 1 (water supply pipe air washing step) of the present invention, Figure 13 is a view showing the air washing step 2 (the step of cleaning the water for filtration treatment). Figure 14 is a display diagram of the backwashing step of the present invention, Figure 15 is a view showing the final cleaning step 1 of the present invention, Figure 16 is a view showing the final cleaning step 2 of the present invention. Fig. 17 is a view showing the air washing step 3 (the cation exchange water pipe air washing step) of the present invention. In Figures 1 2 to 1 7 , a pipe through which the fluid flows, It is shown by a thicker solid line than a pipe in which the fluid does not flow. The crotch of the fluid flow is blacked out. The water treatment device shown in Figures 11 to 17 shows The cation exchange tower 4 is further disposed in the rear stage of the filtering device shown in FIGS. 6 to 10, For the filter device, It is constructed in the same manner as shown in Fig. 6 to Fig. U. Components that achieve the same function are represented by the same figure number. P3 is a backwashing pump of the ion exchange column 4, V12 is washed out -23- 201002443 mouth valve, v1G is a cation exchange inlet valve, V13 is an inlet valve for backwashing' v14 is an air inlet valve, V15 is a cation exchange outlet valve. 24 to 31 indicate piping, X6 to X8 indicate piping connections. The piping distance between the piping connection portion and the introduction port 4A of the cation exchange tower 4, That is, the length of the pipe 23 is usually about 20 to 200 cm. The piping distance between the piping connection portion Xs and the treated water inlet 3 A of the treatment tank 3, That is, the length of the pipe 27 is usually about 50 to 500 cm. a connection portion of the backwashing water pipe 30 and the cation exchange treated water pipe X6, The distance from the cation exchange treatment water discharge port 4B of the cation exchange column 4, That is, the length of the pipe 24 is usually about 20 to 20 Ocra. Backwash water piping 30, Is set at: The vicinity of the treated water discharge port 4B of the cation exchange column 4 in the cation exchange treated water pipe. In addition, the connection portion X8 between the pipe (washing drainage pipe) 28 and the treated water pipe 26 for discharging the washing drainage of the cation exchange water pipe 26 is used. The piping distance from the treated water inlet 3 A of the treatment tank 3, That is, the length of the pipe 27, Usually about 50~500cm. The air is injected into the connection portion of the pipe 31 and the cation exchange treated water pipe X 7 The method is provided in the vicinity of the connection portion X6 of the backwashing water pipe 30 and the treated water pipe 24, Air cleaning can be performed regardless of the length of the pipe 25. When the raw water is processed, Filter inlet valve V2 and filter outlet valve V3, The cation exchange inlet valve V1Q and the cation exchange outlet valve V15 are opened, Close the other valves, Let the raw water Lipu P1 act, Make the backwash pump P 2 p 3 stops, Raw water in the raw water tank 1 passes through the pipe 1 1 With -24- 201002443 tube 12, And the pipe 1 3 is introduced into the filter 2 for filtration treatment, Filtration of treated water through the piping 14, Piping 15, And the piping 23 is introduced into the cation exchange column 4 for cation exchange treatment. The cation exchange treated water is passed through the pipe 24, Piping 25, The piping 26 and the piping 27 are introduced into the treatment tank 3. By continuing the water treatment operation, And because the dirt in the system leads to increased pressure loss, Or create other missing situations, Or after continuing the scheduled filtration operation, Periodically, the following steps (1) to (7) are used for washing. (1) Air washing step 1 (water supply pipe air washing step) (Fig. 12) Similarly to the air washing step 1 of the filter device shown in Figs. 1 to 10, Raw water pump P > Keep running 'put the air inlet valve V, And backwashing is opened with the outlet valve v4, Will filter the outlet valve V3, Cation exchange inlet valve Vio, The cation exchange outlet valve V15 and the treatment tank inlet valve V9 are closed (that is, only the air inlet valve Vi, And the filter inlet valve V2 and the backwashing outlet valve v4 are opened, The other valve parts are closed) The compressed air is injected into the water supply pipe 12' to allow the gas-liquid mixed fluid of the raw water and the air to flow to the water supply pipe 1 2 for air washing. The washing drain is discharged from the piping 17 . In the air washing step, the raw water flows in the water supply pipe 1 2 at the same flow rate as in the normal filtration operation, and the air is blown by the air injection pipe 16 provided in the vicinity of the raw water pump P 1 . It will become a mixed fluid with raw water. Turbulence is generated in the pipe 12 by flowing in the water supply pipe 12, The 'contaminants of microorganisms and the like attached to the inner wall of the pipe 12 are stripped off -25-201002443. a gas-liquid mixed flow containing impurities such as the microbial block removed by the peeling off, It flows into the local piping 13 by filtering the inlet valve V2'. And by opening the backwashing outlet valve V4, Will other valve parts v3, V5, V6 is closed, Will almost never enter the filter 2, It is discharged from the piping 17 to the outside of the system. By the air washing step, In the water supply pipe of the filter 2, The piping 1 2 on the upstream side of the above-described connecting portion X2 is air-washed. The air washing water for washing the air in the step 1 is Not limited to raw water, It is also possible to use filtration to treat water, Or other system of water. (2) Stop step 1 After the above air washing step 1, You can also implement the next step immediately. It is also possible to have a stop step. The presence or absence of a stop step has no particular effect on the cleaning effect. When the stop step is performed, Close all valves, And make the raw water pump Pi, Backwash pump p2 P3 stops. (3) Air cleaning step 2 (filtering water piping air cleaning step) (Fig. 13) In air cleaning step 2, Similarly to the air washing step 2 of the furnace apparatus shown in Figs. 6 to 1 , Will filter the inlet valve v2 Filter the outlet valve V3, Air inlet valve V7, Cation exchange inlet valve VlQ, And wash the outlet valve V8 to open 'close the other valve parts, Make the raw water pump Pl actuate (reverse pump P2 P3 stops), Flowing into the pipe 21 from the air, Injecting compressed air into the treated water pipe 15 5, And the raw water in the raw water tank 1 is passed through the piping -26-201002443 11, Piping 12, And piping 13, And import to filter 2, The air mixed with the treated water from the pipe 14 and the air is flowed to the treated water pipe 15 for air washing. By discharging the washing drain from the pipe 22, The contaminant in the filtration treatment water pipe 15 is peeled off and discharged to the outside of the system. The air cleaning step 2, It does not have to be done before the backwashing step 1, It is also possible to carry out after the backwashing step 1. It can also be done before the air cleaning step 1. It is also possible to carry out after the final washing step. In the same manner as in the second embodiment, This air washing step 2 can be omitted as appropriate. (4) Stopping step 2 After the above air washing step 2, Immediately implement the next washing step. It is also possible to have a stop step. The presence or absence of a stop step has no particular effect on the cleaning effect. When the stop step is performed, Close all valves, And make the raw water pump P! , Backwashing pump P2 P3 stops. (5) Backwashing step (Fig. 14) In the air washing step 1, Although the peeling of the portion of the water supply pipe 1 2 of the filter 2 can be performed, And except that it can't be done: In the water supply piping, In addition to the cleaning of the piping 1 3 on the downstream side of the connection portion x2 of the backwashing drain pipe 17 It is also possible to wash the air when the air is washed. The portion of the inlet portion of the pipe 13 or the inlet portion of the filter 2 is partially flowed together with the exfoliated microorganism or the like. Similarly, In the air cleaning step 2, For the cation exchange tower -27- 201002443, 2 and I, Water, water, water, water, water, water, water, water, water, water, water, water, water, water, water And in the piping, The portion of the pipe 23 on the downstream side of the connecting portion X5 cannot be cleaned. Thus in the present invention, After performing the air cleaning step 1 or the air cleaning step 1 described above, the backwashing step is performed, The pipe 2 in the filter 2, Part 23 and the cation exchange column 4 are washed. In the backwashing step, The backwashing inlet valve V5, V13 and backwash valve v4, V8 is on, Close the other valves, Make the backwash pump P: P3 action, Let the raw water pump P 1 stop, To make backwashing from outside the system, After the pipe 19 and the pipe 14 flow back to the filter 2, The backwashing row is discharged to the outside of the system through the piping 13 and the piping 17. Wash the backwash water through the tube 30. 24 countercurrent to the cation exchange column 4, It is discharged to the outside of the system through piping 23 and piping. With this, In the filter 2 and in the cation exchange column 4 and in the air net step 1, 2 unwashed piping 1 3, 2 Part 3 is washed' and the pollutants are discharged outside the system. The backwashing treatment of the above filter 2 and the reverse washing of the cation exchange column 4, Can also be done at the same time, It can also be done separately. When it is performed separately, which process can be performed first. Piping 23 and cation exchange tower 4, It is a filtration treatment water that has less problem of biological growth than raw water. Therefore, it is not necessary to perform air washing as frequently as the piping or the filter 2, Therefore, the backwashing treatment of the cation delivery tower 4 and the piping 23 serving as the water supply piping can be appropriately saved. Alternatively, it may be performed with a frequency of less than -28-201002443 compared with the backwashing of the pipe 13 or the filter 2. (6) Stop step 3 After the above backwashing step, It is also possible to start the filtration operation immediately. The final cleaning step 1, which will be described later, is performed. 2 or after air cleaning step 3, It is also possible to start the water treatment operation again. The step of stopping the water treatment operation or the washing step described later may be performed. The presence or absence of a stop step has no particular effect on the cleaning effect. When the stop step is performed, Close all the valves, And make the raw water pump Pi, Backwashing Lipu P 2 P 3 stops. (7) Final cleaning step 1 ' 2 (Fig. 5, Figure 6 6) When the final cleaning of the filter 2 is performed, Similarly to the case of the filter device of the first to the first drawings, The filter inlet valve V2 and the purge outlet valve V6 are opened. Close the other valves, Make a raw water pump P! Actuate, Let the reverse wash pump P2 P3 stops, The raw water in the raw water tank 1 passes through the piping i! , The pipe 1 2 and the pipe 1 3 are introduced into the filter 2, After piping 14, The piping 20 and the piping 17 are discharged to the outside of the system (Fig. 15). When the final cleaning treatment of the cation exchange column 4 is performed, Filter the human valve V2 and the filter outlet valve V3 with the cation exchange inlet valve V]Q and the purge outlet valve V! 2 open, Close the other valves, Make a raw water pump P, Actuate, Let the backwash pump P2 P3 stops, The raw water in the raw water tank 1 passes through the pipe 11, The pipe 12 and the pipe 13 are introduced into the filter 2, After the piping 14' piping 15' and the piping 23' are introduced into the cation exchange tower 4, After -29- 201002443 piping 24, Piping 29, And the piping 22 is discharged to the outside of the system. After the series of washing steps described above, Filter inlet valve V2 and filter outlet valve V3 with cation exchange inlet valve Vl () and cation exchange outlet valve V! 5 open, Close the other valves, Make a raw water pump P! Actuate Make the backwash pump P 2 P 3 stops and restarts the water treatment of raw water. In an ion exchange column filled with a cation exchange resin such as a cation exchange column, The trace metal ions required for microbial propagation are removed by the cation exchange resin in the column, Therefore, for the piping after the ion exchange tower, There is no problem with microbial reproduction. then, The piping for treating the water in the ion exchange column, Does not require special air cleaning, And there is no possibility of microbial reproduction at all. So you can also respond to your needs. Or at a lower cleaning frequency than other cleaning steps, The pipe after the ion exchange column is air-washed. The water treatment device shown in Figures 1 1 to 17 An air injection pipe 31 is provided, When the cation exchange treated water pipe is air-washed, As the brother 17 is not, Passing the furnace inlet valve V2 Excessively reducing the outlet valve V3, Yang ion exchange inlet valve Vlt), Cation exchange outlet valve V15, Air inlet valve V μ, And the washing outlet valve VM is opened, Close the other valves, Make the raw water pump Pi act (let the backwash pump P2 P3 stops), Raw water in the raw water tank 1 passes through the pipe 1 1 Piping 1 2 And the piping 13 is introduced into the cation exchange tower 4, Will come from the piping 24, 25 cation exchange treatment water, The air mixed with the air from the air injection pipe 31 is air-mixed, and the cation exchange water pipe 26 is air-cleaned by the pipe 26'. Discharge -30-201002443 net drain from piping 28 to the outside of the system. When the air of the cation exchange treatment water pipe 26 is washed, It is not limited to the treated water obtained by subjecting the raw water from the raw water tank 1 to filtration treatment and cation exchange treatment. It is also possible to use air from industrial water outside the system for air washing. It is also possible to perform air washing by treating the water in the water tank 3. The air injection pipe 31 may be connected to the backwashing water pipe 3 0 ' to wash the cation exchange water pipe using air mixed water from the outside of the system. [Air cleaning condition] The air cleaning step 1 of cleaning the water supply pipe of the water treatment device such as a filter or a cation exchange column, If the amount of air injected is too small, The peeling effect of microorganisms will be small, In order to get enough cleaning effect, And need to increase the air cleaning steps, Will make the operation efficiency lower, And the displacement is increased and it is not suitable. but, If you want to increase the amount of air injected, In order to inject compressed air, a device such as a compressor is enlarged. Consumption of electricity will increase, etc. It is detrimental to economics. So, the amount of air injected, Washing time of the air washing step, I hope to adjust to: In addition to inhibiting the cost of cleaning, A better cleaning effect can also be obtained. In the air cleaning step 1 of the present invention, the 'injection amount of air' is 1 cm 2 per unit sectional area of the water supply pipe to be cleaned, and is preferably 4 to 5 L/min', preferably 4 to 5 L/min. Washing time of the air washing step, It is preferable that it is three times or more the reference time T (minute) calculated by the following formula (I). -31 - 201002443 Τ = { SxLxO. OO 1 /w } . . . (I) (S is the sectional area (cm2) of the water supply pipe, L is the length of the water supply pipe through which the air mixed water flows (the length of the water supply pipe 12 in Fig. 1) (crn), and W is the amount of water flowing during washing ( L/min)). If the amount of air injected is less than the above range, a sufficient washing effect cannot be obtained, and if too much, the economy is not good. If the washing time is less than three times the above reference time τ, a sufficient washing effect cannot be obtained. However, if the washing time is too long, it is not good. Therefore, it is preferable that the washing time is five times or less of the above reference time τ. The water passing rate at the time of air washing is usually about 0.5 to 2 m/s, and the amount of water flowing in the air washing differs depending on the sectional area of the piping. Air cleaning conditions for air cleaning steps 2 and 3 for air cleaning treatment of backwash water piping or treated water piping 'These pipings do not have the problem of microbial growth in the water supply piping' compared to the air of the water supply piping The washing conditions may be carried out under the same conditions as the washing conditions of the air washing step 1 by the washing conditions having a low washing power. For example, in the air washing steps 2, 3' of the present invention. The amount of air to be injected is 4 to 1 OL/min per unit sectional area lem2 of the backwashing water pipe or the treated water pipe to be cleaned. 'The washing time of the air washing step' can be expressed by the following formula (1,) It is preferable to calculate three times or more of the reference time T 1 (minutes). -32- 201002443 τ' = { S'xL’xO. OOl/W1 } . . . (Γ) (s' is the cross-sectional area (cm2) of the backwashing water pipe or the treated water pipe, and is the length of the backwashing water pipe or the treated water pipe through which the air mixed water flows (the length of the pipes 19 and 15 in Fig. 1) (cm), W1 is the amount of water (L'/min) at the time of washing. If the amount of air injected is less than the above range, sufficient washing effect cannot be obtained, and if too much, the economy is not good. If the washing time is less than three times the above reference time, sufficient washing effect cannot be obtained. However, if the washing time is too long, it is not good, so the washing time is preferably five times or less of the above reference time Τ'. The water passing speed at the time of air washing is usually about 5 to 2 m/s, and the amount of water flowing when air is washed differs depending on the sectional area of the piping. [Time of each washing step] The specific conditions of the air washing steps 1 to 3, the back washing step, and the final washing step and the stopping step to be performed according to the present invention are not particularly limited, but usually the following times It is better to do it. Air washing step 1: 1~10 minutes air washing step 2, 3: 1~10 minutes back washing step: 5~15 minutes stop step: 5 minutes or less final cleaning step: 5~1 0 minutes [water treatment device -33- 201002443 The washing method of the water supply pipe of the water treatment device of the present invention 'is easy to multiply microorganisms', and contains a large amount of drainage of organic matter, especially phosphorus and/or nitrogen containing nutrient salts of microorganisms. It is effective to wash the water supply pipe of the water treatment device to be treated, and the water to be applied contains the water quality of the drainage. For example, the following water quality is listed. <organic matter contains drainage water quality> Organic matter concentration: 〇·1~l〇〇mg/L (as TOC) SS concentration: 0~l〇mg/L Phosphorus concentration: 0.1~l〇〇〇mg/L (as P Nitrogen concentration: 〇·1 to 20 mg/L (as N) [Water treatment device] The structure of the water treatment device to be cleaned in the present invention is not particularly limited, and the water treatment device is provided internally: The water treatment device main body and the backwashing mechanism, which are filled with the water treatment material at regular intervals or in need of backwashing, are connected to the water supply pipe by the air injection pipe, or are connected to the treatment by the air injection pipe. Water piping can be used effectively. The water passing direction of the main body of the water treatment device is not particularly limited, and may be either an upward flow mode or a downward flow mode. In addition to sand, anthracite, and inert resin, various water filters such as waste ion exchange resins may be used as the water treatment material, and ion exchange resins or activated carbon may be used. -34-201002443 The water treatment device main body of the water treatment device to which the water treatment device water supply device of the present invention is applied is, for example, the following structure, and is not limited to these structures. (1) A filter that is used as a filter material for water treatment materials. (2) An ion exchange column filled with an ion exchange resin as a water treatment material. (3) A water softener filled with an ion exchange resin as a water treatment material. (4) An activated carbon column filled with activated carbon as a water treatment material. [Examples] The present invention will be more specifically described below by way of Experimental Examples and Examples. [Experimental Example 1] In order to investigate the relationship between the air injection amount, the water supply amount, the air washing time, and the length of the water supply pipe during the air washing, an experiment was conducted to pass the organic material containing water to a transparent vinyl chloride pipe of 15 A. The area is 1.8 cm2), and air is injected at a frequency of once every two days for air washing. The water content of the organic matter containing the drainage is a quantitative amount of 8_3 L/min, and the air injection amount and the injection time (the time of the air washing step) are variously changed. Two months after the experiment was carried out, the adhesion of the microorganisms on the inner wall of the pipe was visually observed at each point 5 m, 15 m, and 30 m from the air injection point, and if it was considered that the microorganism was not attached, it was sufficiently washed. In the case of the effect, it is evaluated as "〇", and it is considered that there is attached microorganism and the washing effect is not -35-201002443. If it is sufficient, the evaluation is "χ" and the results are shown in Tables 1 to 3. It can be seen from Tables 1 to 3 that the air injection amount or air cleaning time for obtaining a sufficient air cleaning effect has a lower limit, and for the cleaning time, Τ = {pipe sectional area (1.8 cm 2 ) x piping length (50 〇cm, 1 500 cm or 3000 cm) x0_001 + water flow rate (8.3 L/min)} (minutes) is preferably more than three times. [Table 1] _ Distance from air injection point (5m) Air cleaning step time (seconds) 20 40 60 80 Air injection amount (L/min/cm) 2 XXX 〇4 〇_ • 6 _ • 8 - • 10 - - - _ [Table 2] _ Distance from the empty _^ injection point (15m) Air cleaning step time (seconds) 20 40 60 80 Air injection amount (L/min/cm) 2 _ • One X 4 XX 〇〇6 X 〇 _ 8 〇• 10 - - - -36- 201002443 [Inch] Final wash i 10 minutes τπτ~> τττΤ^ S EO fife mz7 τπ1^ ΠΕ2 nE. Si ΰτϊ~> ΓΤΤΚ no nH Operation stopFig. 5 Stop 3 i 5 minutes mt7 HII^ ttTn Follow ΠΙΖ^ eE ss EZ7 nw □o γττΝγ L Stop stop backwashing 10 minutes EH EZ3 hlEI EZ2 mT7 Si w mr? TnN mz7 mr^ EZ7 tnN Stop [Run Figure 4 Stop 2 5 minutes mo mT? EZJ Sr S m〇mT? BZ2 τπΤ7 E trrr^ ΠΓ7 mN Stop and stop air cleaning 2 5 minutes HIZ^ ΓττΤ^ ΕΓ2 Ee Si si ΠΙΖ7 τττΤ^ mn E5 Si K Stop operation 3Fig. 1 1 minute ΠΖ 2 mR nn? E& IDZZJ EE nz^ mT? ΠΙΤ~> mN eo rnr^ nenj Eh no Stop the air Washing for 15 minutes Si nnn ΠΤΠΝ ΠΙΖ7 γττγ7 ΠΙΓ^ Si ΙΠΓ7 mi^ me IE2 nrP Operation stop Fig. 2 Step name Step time Air inlet valve Vi Filter inlet valve v2 Filter outlet valve v3 Backwash inlet valve V5 Backwash outlet Valve v4 Washing outlet valve v6 Air inlet valve v7 Washing outlet valve V8 Raw water pump Pi Backwashing pump p2 Drawing-38- 201002443 [Table 3] Distance from air injection point (30m) Air washing Step time (seconds) 20 40 60 80 100 120 Air injection amount (L/min/cm) 2 _ - _ _ X 4 _ XXX 〇 6 _ X 〇 _ _ 8 • 〇 _ 10 〇 - - - _ - [Implementation Example 1] The filtration device (filter material: anthracite) of Fig. 1 in which the filtered raw water of the following water is filtered, the opening and closing of the pump and the valve are performed in the timing chart shown in Table 4 below, and the raw water is filtered. The operation is performed at a frequency of once every two days: a series of washings of the air washing step 1, the stopping step 1, the air washing step 2, the stopping step 2, the back washing step, the stopping step 3, and the final washing step. deal with. <Filter raw water quality> Organic matter concentration: 5 mg/L (as TOC) SS Concentration: lmg/L Phosphorus concentration: 500 mg/L (as P) Nitrogen concentration: 5 mg/L (as N) -37- 201002443 Water supply The cross-sectional area of the pipe is 1.8 cm2, the length of the water supply pipe through which the air-mixed water passes (the length of the pipe 12) is 500 cm, and the length of the water supply pipe of the non-air washing portion (the length of the pipe 13) is 20 cm. The amount of water was 2 L/min, the amount of air injected was 4 L/min, and the amount of water flowing during the backwashing treatment was 2 L/min (the reference time T was 0.45 minutes). The cross-sectional area of the backwashing pipe is 1.8 cm2, the cross-sectional area of the treated water pipe is 1.8 cm2, and the length of the backwashing water supply pipe and the treated water pipe through which the air mixed water passes (the total length of the pipe 19 and the pipe 15) is 500 cm. The length of the treated water pipe 14 in the non-air washing portion is 10 cm, the length of the pipe 23 is 5 cm, the water flowing through the air washing step 2 is 2 L/min, and the air injection amount is 4 L/min ( The reference time Τ ' is 0.45 minutes). As a result, after the operation for 6 months, it is considered that the water supply pipe can continue to operate stably without microorganisms adhering and multiplying. The present invention has been described in detail with reference to the specific embodiments thereof, and it is understood by those skilled in the art that various changes can be made without departing from the spirit and scope of the invention. The present application is based on the entire contents of the Japanese Patent Application No. 2008-073918, filed on March 21, 2008. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a system diagram of a filter device according to an embodiment of a method for cleaning a water supply pipe of a water treatment device according to the present invention. Fig. 2 is an explanatory view of an air washing step (water supply pipe air washing step) of the filter device of Fig. 1. -39- 201002443 Fig. 3 is an explanatory diagram of the air washing step 2 (the backwashing pipe and the treated water pipe air washing step) of the filter device of Fig. 1 . Fig. 4 is an explanatory view of a backwashing step of the filter device of Fig. 1. Fig. 5 is an explanatory view showing a final washing step of the filtering device of Fig. 1. Fig. 6 is a system diagram showing a filter device according to another embodiment of the method for cleaning the water supply pipe of the water treatment device of the present invention. Fig. 7 is an explanatory view of the air washing step 1 (water supply pipe air washing step) of the filtering device of Fig. 6. Fig. 8 is an explanatory view of the air washing step 2 (the processing water piping air washing step) of the filtering device of Fig. 6. Fig. 9 is an explanatory view of a backwashing step of the filter device of Fig. 6. Fig. 10 is an explanatory view showing a final washing step of the filtering device of Fig. 6. Fig. 1 is a system diagram showing a water treatment device according to another embodiment of a method of cleaning a water supply pipe of a water treatment device according to the present invention. Fig. 1 is an explanatory view of the air washing step 1 (water supply pipe air washing step) of the water treatment device of Fig. 1 . Fig. 13 is an explanatory view showing an air washing step 2 (cleaning water pipe air washing step) of the water treatment device of Fig. 11. Fig. 14 is an explanatory view of a backwashing step of the water treatment apparatus of Fig. 11 and Fig. 15 is an explanatory view of a final washing step 1 of the water treatment apparatus of Fig. 11. Fig. 16 is an explanatory diagram of -40 - 201002443 of the final cleaning step 2 of the water treatment apparatus of Fig. 11. Fig. 17 is an explanatory diagram of the air washing step 3 (the cation charging water pipe air washing step) of the water treatment device of Fig. 1 . [Description of main component symbols] 1 : Raw water tank 2 : Filter 3 : Treatment tank 4 : Cation exchange tower 1 1 : Pipe 1 2 : Water supply pipe 1 3 : Pipe 1 4 : Pipe 1 5 : Process water pipe 1 6 : Air Injection pipe 17: Backwashing drain pipe 18: Pipe 1 9 : Backwashing water pipe 20 : Pipe 21 : Air injection pipe 22 : Pipe 2 3 : Pipe 24 : Process water pipe 2 5 : Pipe - 41 - 201002443 26 : Cation exchange treatment water piping 27 : piping 28 : Washing drainage piping 3 0 : Backwashing water piping 3 1 : Air injection piping P1 : Raw water Lipu p2 : Backwashing Lipu P3 : Backwashing pump V!: Air inlet valve V 2 : Filter inlet valve V 3 : Filter outlet valve v4 : Backwashing outlet valve V 5 : Backwashing inlet valve V 6 : Washing outlet valve V 7 : Air inlet valve V 8 : Washing outlet valve V 9 : treatment tank inlet valve v1 (): cation exchange inlet valve V j !, V ! 2 : washing outlet valve VJ 3 : backwashing inlet valve v14 : air inlet valve v15: cation exchange outlet valve X 1 to X 5: Connection part x6 to x8: piping connection part - 42 -