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z-index:11'> <div id='spdv_14502' class='pdv_content' style='overflow:visible;width:100%;'> <div class="pdv_border" style="margin:0;padding:0;height:100%;border:0px solid;background:;"> <div style="height:25px;margin:1px;display:none;background:;"> <div style="float:left;margin-left:12px;line-height:25px;font-weight:bold;color:"> 產品詳情 </div> <div style="float:right;margin-right:10px;display:none"> <a href="-1" style="line-height:25px;color:">更多</a> </div> </div> <div style="padding:0px"> <link href="../../product/templates/css/productcontent.css" rel="stylesheet" type="text/css" /> <script type=text/javascript src="../../product/js/productcontent.js"></script> <div id="productcontent"> <div class="productpics"> <div class="piczone"> <table align="center" cellpadding="0" cellspacing="0"> <tr> <td align="center"> <div id="productview"> <img src="../../product/templates/images/loading.gif" border="0" id="productloading" class="productloading"> </div> </td> </tr> </table> </div> <div id="contentpages"></div> </div> <div class="introzone"> <div id="prodtitle">紫外線殺菌器</div> <div id="prop"></div> <div id="memo" class="memo" style="display:block">紫外線殺菌器</div> </div> <div class="bodyzone"><p style="margin: 0px; padding: 0px; border: 0px; font-family: Arial, 微軟雅黑, Helvetica, sans-serif; line-height: 26px;"><font style="margin: 0px; padding: 0px; font-size: 10.5pt;"> 紫外線殺菌的原理是生物細胞內含有的脫氧核糖核酸（DNA）能吸收240～280nm范圍內的光波，而在對260 nm波長的光波吸收達到目標值，使DNA受到破壞導致細菌死亡。</font></p><div style="margin: 0px; padding: 0px; border: 0px; font-family: Arial, 微軟雅黑, Helvetica, sans-serif; line-height: 26px;"><font style="margin: 0px; padding: 0px; font-size: 10.5pt;">　　紫外線消毒特點是：殺生能力強，接觸時間短；設備簡單，操作管理方便，處理后的水無色、無味、無中毒的危害；不會增加像氯氯殺生時出現的氯離子。然而，紫外線沒有余氯那樣的持續殺生作用，而且汞燈使用壽命短，價格貴，處理水量也小。</font></div><div style="margin: 0px; padding: 0px; border: 0px; font-family: Arial, 微軟雅黑, Helvetica, sans-serif; line-height: 26px;"><font style="margin: 0px; padding: 0px; font-size: 10.5pt;">　　在飲用水生產上應用的紫外線殺菌裝置由低壓汞燈、殼體、電氣裝置組成。通電后可產生波長為254 nm的紫外線。這種波長的紫外線輻射能量應占燈管總輻射能量的80%以上。</font></div><div style="margin: 0px; padding: 0px; border: 0px; font-family: Arial, 微軟雅黑, Helvetica, sans-serif; line-height: 26px;"><font style="margin: 0px; padding: 0px; font-size: 10.5pt;">紫外線殺菌效果的因素主要有燈管的功率，水流速度即水體在殼體內停留時間。水層受輻射的距離。</font></div><div style="margin: 0px; padding: 0px; border: 0px; font-family: Arial, 微軟雅黑, Helvetica, sans-serif; line-height: 26px;"><font style="margin: 0px; padding: 0px; font-size: 10.5pt;">紫外線燈管的功率隨著使用時間的增加其輻射能量隨之降低，殺菌效果下降。燈管使用到2000h，發射強度下降25%左右，使用時間為10000 h，發射強度只有額定的55%左右。為保證產品質量，紫外燈管使用時間到10000 h后應及時調換新燈管。</font></div><div style="margin: 0px; padding: 0px; border: 0px; font-family: Arial, 微軟雅黑, Helvetica, sans-serif; line-height: 26px;"><font style="margin: 0px; padding: 0px; font-size: 10.5pt;">　　應保證供電電壓的穩定經使輻射能量的穩定。</font></div><div style="margin: 0px; padding: 0px; border: 0px; font-family: Arial, 微軟雅黑, Helvetica, sans-serif; line-height: 26px;"><font style="margin: 0px; padding: 0px; font-size: 10.5pt;">　　當水流量一定時，過流面積大，水流速度慢，水體在殼體內有足夠長的停留時間，有利于殺菌。但是，殼體直徑越大，水層厚度也越厚，離燈管的距離也就越遠，殺菌效果也就越差。據資料介紹30W紫外燈對1cm的水層滅菌效率為90%，對4m水層滅菌效率只有40%左右。為保證水體在殼體內有足夠的停留時間，又不致水層過厚，可在殼體內加裝折流板以提高滅菌效果。</font></div><div style="margin: 0px; padding: 0px; border: 0px; font-family: Arial, 微軟雅黑, Helvetica, sans-serif; line-height: 26px;"><font style="margin: 0px; padding: 0px; font-size: 10.5pt;">用紫外線殺菌器，在運行中要注意：</font></div><div style="margin: 0px; padding: 0px; border: 0px; font-family: Arial, 微軟雅黑, Helvetica, sans-serif; line-height: 26px;"><font style="margin: 0px; padding: 0px; font-size: 10.5pt;">（1）紫外線消毒不像氯氣消毒有余氯能保持作用，因而消毒后的水要加強管理，防止再污染。</font></div><div style="margin: 0px; padding: 0px; border: 0px; font-family: Arial, 微軟雅黑, Helvetica, sans-serif; line-height: 26px;"><font style="margin: 0px; padding: 0px; font-size: 10.5pt;">（2）使用紫外線汞燈消毒，燈管點燃后須有5～15min時間。</font></div><div style="margin: 0px; padding: 0px; border: 0px; font-family: Arial, 微軟雅黑, Helvetica, sans-serif; line-height: 26px;"><font style="margin: 0px; padding: 0px; font-size: 10.5pt;">（3）電氣方面要采取措施，以保證燈管的額定功率和電壓穩定，否則點燃功率不足時，將影響殺菌效果。</font></div><div style="margin: 0px; padding: 0px; border: 0px; font-family: Arial, 微軟雅黑, Helvetica, sans-serif; line-height: 26px;"><font style="margin: 0px; padding: 0px; font-size: 10.5pt;">（4）紫外線消毒的設備和管理均較簡單，但目前燈管使用壽命較短、價格較貴。紫外線消毒的應用場所是一些給水量較小的場所和小規模的工業用水的水廠，采用的大都是紫外線低壓汞燈消毒。給水量較大的是采用紫外線高壓汞燈消毒，目前在試用階段，運行中需要精心操作。</font></div> </div> <div class="bzone"> <input type="hidden" id="productid" value="137"> <div id="banzhu" class="banzhu"></div> </div> </div> </div> </div> </div> </div>  <div id='pdv_14698' class='pdv_class' title='產品分類' style='width:195px;height:290px;top:6px;left:10px; 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