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除霧器噴嘴

除霧器噴嘴是沖刷體系中重要的部件.關于各款的噴嘴,廊坊市廊青環保工程技術有限公司在工程使用之前都進行可行性剖析,在模仿的環境中進行噴灑散布剖析、噴發沖擊力丈量、噴灑液滴尺度剖析、噴灑視點丈量和資料磨損實驗,經過樹立數學模型挑選噴嘴的噴發壓力和噴發視點,以及相鄰噴嘴的較佳距離,以到達較優的沖刷作用.


沖刷水壓過低,沖刷作用差,易發生結垢現象;沖刷水壓過高則易添加煙氣帶水,并會下降波形板的使用年限.沖刷水壓力應依據沖刷噴嘴的特征和沖刷噴嘴與除霧器之間的距離(一般為0.4~0.8m)等要素決議.一般情況下下層除霧器的沖刷水壓應高于上層除霧器,除霧器頂風面的沖刷水壓高于順風面的沖刷水壓.有時為了節省本錢、簡化控制體系,也常選取根本相同的沖刷水壓(≥0.2MPa).


沖刷掩蓋率是指沖刷水對除霧器斷面的掩蓋程度.依據不同工況條件,沖刷掩蓋率一般選取200~300.定不能留有沖刷死角和盲區,不然易形成結垢現象.一般條件下,噴嘴的噴灑投影面的外圍沖刷力較弱,應該考慮有沖刷堆疊,以保杰出的沖刷作用.


除霧器沖刷周期指除霧器每次沖刷的時刻距離.沖刷不宜過于頻頻,不然會導致煙氣帶水量加劇;一起沖刷距離也不能太長,不然易發生結垢現象.除霧器沖刷周期依據煙氣特征及吸收劑情況斷定,一般應不大于2小時.


除霧器沖刷水量一方面應滿意除霧器本身沖刷作用的要求,另一方面還需考慮體系水平衡的要求.有時需求選用大水量短時刻沖刷,有時則要小水量長時刻沖刷,詳細沖水量可由工況條件斷定.


在規劃除霧器沖刷體系時要考慮的要素有:沖刷面挑選、沖刷水壓力、沖刷強度、噴嘴視點、沖刷頻率、沖刷水水質等.除霧器噴嘴具有1/2寸 3/4英寸 1英寸的噴嘴外螺紋尺度,合適大多數常見的管道,并具有多種流量和噴發視點可供挑選,以滿意各需求.


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