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class="mianbao">您現(xiàn)在的位置：<a href="/">首頁</a> > <a href="/article.html">技術(shù)文章</a> > 什么叫爆炸下限%LEL、爆炸上限%UEL、爆炸極限？</div> <div id="gbd9wdnsvu" class="about_con"> <h1 class="newstit">什么叫爆炸下限%LEL、爆炸上限%UEL、爆炸極限？</h1> <div id="gbd9wdnsvu" class="newstime"> <span id="gbd9wdnsvu" class="skim"><em>瀏覽次數(shù)：</em>11586</span><span id="gbd9wdnsvu" class="skimtim"><em>發(fā)布日期：</em>2012-01-05 </span> </div> <p><font face="Verdana"><strong>什么叫爆炸下限%LEL、爆炸上限%UEL、爆炸極限？</strong></font></p><p> </p><p>可燃氣體在空氣中遇明火種爆炸的低濃度，稱為爆炸下限—簡稱%LEL。英文：Lower Explosion Limited。<br />　　可燃氣體在空氣中遇明火種爆炸的高濃度，稱為爆炸上限—簡稱%UEL。英文：Upper Explosion Limited。<br /> 爆炸極限是爆炸下限、爆炸上限的總稱，可燃氣體在空氣中的濃度只有在爆炸下限、爆炸上限之間才會發(fā)生爆炸。低于爆炸下限或高于爆炸上限都不會發(fā)生爆炸。因此，在進行爆炸測量時，報警濃度一般設(shè)定在爆炸下限的25%LEL以下。<br />UEL=Upper Explosion Level 爆炸上限<br />LEL=Lower Explosion Level 爆炸下限</p> <div class="gbd9wdnsvu" id="news_sx"><li id="gbd9wdnsvu" class="sx_left">上一篇：<a href="/Article-81179.html">噪聲計聲級計的選擇及使用方法</a> <br />下一篇：沒有了</li></div> </div> </div> </div> </div> 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