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發布時間：2021-05-27</div> <div class="inside_rnewcon"> <div>　　<strong>小型河涌水質自動監測站</strong>是由水質分析單元、采水單元、配水單元、數據采集控制傳輸單元、輔助單元和小型站房等組成?？梢愿鶕煌枨蠼M成網絡化的水質自動監測系統，可按設定采樣周期對水質進行自動監測采用定制的可移動式檢測倉，無需建設固定站房，建設周期短，可實現便捷搬遷;小型水站占地少、易征地，體積小、能耗低，外型美觀、與環境協調，建設投資少，適合高密度推廣應用。<br /> </div><div>　　可自動在線監測水體中的氨氮、總磷、高錳酸鹽指數、BOD5、常規四參數等水質參數及水文參數;主要用于監測各級行政區域交界、目標管理水域及其他重要水域斷面的水質污染狀況，及時掌握主要流域重點斷面水體的水質污染狀況，預警、預報重大或流域性水質污染事故，解決跨行政區域的水體污染事故糾紛，監督污染物總量控制制度落實情況。<br /> </div><div>　　我們在地表水小型河涌水質自動監測站的技術方案中有學習到工藝設計、布局設計等。那么在取水工藝設計中它又包含其他的一些步驟設計，本章將要介紹的是管路、管路清洗的設計。<br /> </div><div>　　一、管路設計<br /> </div><div>　　取水單元采用雙泵雙管路設計，兩條管路交替運行，互為備份，通過管道中的壓力傳感器可以判斷取水管路的運行狀況。采水過程中，系統實時監測總管路上設置的壓力傳感器壓力值，當壓力不足時，系統自動切換至另外一路取水管路。<br /> </div><div>　　為了方便水樣比對實驗的采水，在預處理單元前、后合適位置，管路設置三通，安裝手動閥門，作為手動取水口。<br /> </div><div>　　二、管路清洗設計<br /> </div><div>　　在取水結束時，管內的剩余水能夠自動通過電動球閥排空。在系統長期使用后，管路內必定會滋生藻類，所以在設計時要充分考慮到此問題，不讓藻類有生存環境。系統配置清洗管路接口，系統定期自動打開臭氧發生器，配合自來水和壓縮空氣，通過控制總管路及配水管路的電動閥門，可分別對外部采水管路和內部配水進行反沖洗，以防止管路堵塞，并達到對管路的除藻作用。</div> </div> <div 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