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class="hotkw_search"> <div id="p29ptw8" class="hotkw_left"><span>熱門關(guān)鍵詞：</span>COD恒溫加熱器,紅外測油儀,COD檢測儀,多參數(shù)水質(zhì)檢測儀,水質(zhì)硫化物酸化吹氣儀,BOD測定儀,土壤有機碳恒溫加熱器,液液萃取器,COD消解回流儀,水質(zhì)采樣器</div> <div id="p29ptw8" class="search_right"> <form action="/products.html" method="post" onsubmit="return checkFrom(this);"> <div id="p29ptw8" class="sc_ipt"><input type="text" name="keyword" placeholder="請輸入產(chǎn)品名稱" maxlength="50" /></div> <div id="p29ptw8" class="sc_btn"><input type="submit" value="搜索" /></div> <div id="p29ptw8" class="clear"></div> </form> </div> <div id="p29ptw8" class="clear"></div> </div> </div>  <script src="http://www.chem17.com/mystat.aspx?u=sunde17"></script>  <div id="p29ptw8" class="ly_crumb"> <img src="/skins/342860/images/crumb_icon.png" /><p>當(dāng)前位置：<a href="/">首頁</a> > <a href="/article.html">技術(shù)文章</a> > <span>尚德COD恒溫加熱器加熱不均（不沸騰）問題自檢及處理方法</span></p> </div>   <div id="p29ptw8" class="ly_NyNewsdetail"> <h1 class="NyNewsdetail_title">尚德COD恒溫加熱器加熱不均（不沸騰）問題自檢及處理方法</h1> <div id="p29ptw8" class="NyNewsdetail_tips">更新時間：2018-08-01 點擊次數(shù)：4958</div> <div id="p29ptw8" class="NyNewsdetail_con"> <p><strong><span style="font-family:宋體"><span style="font-size:14.0pt">一、</span></span></strong><strong><span style="font-size:14.0pt">COD</span></strong><strong><span style="font-family:宋體"><span style="font-size:14.0pt">恒溫加熱器加熱不均（不沸騰）問題自檢及處理方法：</span></span></strong></p><p><span style="font-size:14.0pt">1</span><span style="font-family:宋體"><span style="font-size:14.0pt">、原理上來說，加熱模塊為整體鋁材質(zhì)，鋁的導(dǎo)熱性能是很好的，整個加熱模塊溫場的均勻性一般不會超過±</span></span><span style="font-size:14.0pt">2</span><span style="font-family:宋體"><span style="font-size:14.0pt">℃。</span></span></p><p><span style="font-size:14.0pt">2</span><span style="font-family:宋體"><span style="font-size:14.0pt">、加熱模塊中央有溫度計孔，請將量程適合的水銀溫度計（</span></span><span style="font-size:14.0pt">300</span><span style="font-family:宋體"><span style="font-size:14.0pt">℃以上）插入測溫孔中，測量實際溫度是否達(dá)到設(shè)定的溫度。</span></span></p><p><span style="font-size:14.0pt">3</span><span style="font-family:宋體"><span style="font-size:14.0pt">、如果單獨某個或某些加熱孔，出現(xiàn)不沸騰的情況，請檢查該加熱孔是否有溶液或者試劑灑落，加熱后導(dǎo)致結(jié)晶粘在加熱孔內(nèi)壁上，致使加熱管不能接觸到加熱孔底部或孔壁。這種情況，應(yīng)在設(shè)備*冷卻的情況下，進行清理。</span></span></p><p><span style="font-size:14.0pt">4</span><span style="font-family:宋體"><span style="font-size:14.0pt">、不同批次的加熱管外徑可能會有差別，檢查一下加熱管的尺寸是否可以緊貼加熱孔。</span></span></p><p><span style="font-size:14.0pt">5</span><span style="font-family:宋體"><span style="font-size:14.0pt">、不沸騰的加熱孔，可更換另外的加熱管進行實驗，觀察是否沸騰，從而確認(rèn)是不是加熱管導(dǎo)致的。</span></span></p><p><span style="font-size:14.0pt">6</span><span style="font-family:宋體"><span style="font-size:14.0pt">、不同的水樣，因其成分不同，密度和表面張力的不同，加熱時確實可能會出現(xiàn)不沸騰的情況，遇到時，可提高加熱溫度，或者仍在該溫度下加熱消解，一般</span></span><span style="font-size:14.0pt">2</span><span style="font-family:宋體"><span style="font-size:14.0pt">小時加熱都可*消解。</span></span></p> </div> <div 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