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title="">關(guān)于我們</a>| <a href="/Guestbook/addmsg.html" title="" rel="nofollow">在線(xiàn)咨詢(xún)</a>| <a href="/Article/lists/cateid/4.html" title="">聯(lián)系我們</a> </div> </div> </div>  <div id="i4c2oio" class="logobox layui-clear"> <div id="ak22ogs" class="layui-container layui-row"> <div id="2mgekcg" class="logo layui-col-lg9 layui-col-xs12"> <a href="/" title="馬鞍山市藍辰環(huán)?？萍加邢薰?><img src="/static/Home/images/logo.jpg" alt="馬鞍山市藍辰環(huán)?？萍加邢薰? /></a> <div id="ia8skew" class="head-icon"><span></span></div> </div> <div id="si0gyou" class="logoright float-right layui-hide-xs"> <img src="/static/Home/images/tel.png" alt="" class="float-left"> <div id="aqaeaew" class="media-body"> <p>18856535577</p> <p>18156975788</p> </div> </div> </div> </div> <div class="i2yw2uw" id="nav" class="navbar"> <div id="memucua" class="layui-container navbar-nav"> <ul> <li><a href="/" title="">網(wǎng)站首頁(yè)</a></li> <li><a href="/Article/lists/cateid/1.html" title="">公司簡(jiǎn)介</a></li> <li><a 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screen and (min-width: 320px) and (max-width: 640px) { .article_title {font-size: 16px;} .article_info {font-size: 12px; text-align: center;} } </style> <h3 class="article_title">為什么車(chē)用尿素溶液會(huì )結晶呢？</h3> <div id="62qg4wo" class="article_info"> <div class="s22w2gm" id="baidu_share" class="bdsharebuttonbox layui-hide-xs"><a href="#" class="bds_more" data-cmd="more"></a><a href="#" class="bds_weixin" data-cmd="weixin" title="分享到微信"></a><a href="#" class="bds_qzone" data-cmd="qzone" title="分享到QQ空間"></a><a href="#" class="bds_tsina" data-cmd="tsina" title="分享到新浪微博"></a><a href="#" class="bds_tqq" data-cmd="tqq" title="分享到騰訊微博"></a><a href="#" class="bds_renren" data-cmd="renren" title="分享到人人網(wǎng)"></a></div> 發(fā)布時(shí)間：2020-05-17 19:56:24 瀏覽：<div class="qiu2syy" id='hits' style="display:inline;" src="/Article/hits/id/15.html">737</div> </div> <div id="wmisqsi" class="article_content"> 所謂車(chē)用尿素溶液，是指尿素濃度為32.5%且溶劑為超純水的尿素水溶液，其原料為尿素晶體和超純水。據記者了解，重型卡車(chē)、客車(chē)等柴油車(chē)要達到國四排放標準，在尾氣處理上要選用合適的選擇性催化還原（SCR）系統。而這個(gè)系統，必須依靠尿素溶液對尾氣中的氮氧化物進(jìn)行處理，利用尿素溶液在發(fā)動(dòng)機高溫尾氣氣化后產(chǎn)生的氨，作為柴油機動(dòng)車(chē)輛尾氣選擇性催化還原的還原劑，從而使尾氣中的氮氧化物轉化為無(wú)害的水蒸汽和氮氣，減少排放。因此，車(chē)用尿素可以說(shuō)是重型卡車(chē)、客車(chē)等柴油車(chē)達到國四排放標準的必備產(chǎn)品。<br /> <br /> <span style="white-space:normal;"> </span>我國是全球第二大汽車(chē)市場(chǎng)，其中，重型卡車(chē)保有量為2300多萬(wàn)輛。由此可見(jiàn)，車(chē)用尿素溶液具有較大的市場(chǎng)規模。但是車(chē)用尿素溶液結晶問(wèn)題直是卡友們的困擾，它為什么會(huì )結晶呢？<br /> <br /> <span style="white-space:normal;"> </span>、使用了劣質(zhì)尿素：<br /> <br /> <span style="white-space:normal;"> </span>現在市面上的車(chē)用尿素質(zhì)量參差不齊，些無(wú)良商家為了以低價(jià)來(lái)吸引顧客，用農用尿素或者工業(yè)尿素為原料代替專(zhuān)用高純度車(chē)用尿素原料生產(chǎn)車(chē)用尿素溶液。而些卡友為了省錢(qián)，購買(mǎi)這種劣質(zhì)尿素，長(cháng)期使用，對車(chē)輛的后處理系統有很大的損害，后期的維修成本更高，得不償失。<br /> <br /> <span style="white-space:normal;"> </span>二、尿素溶液不純：<br /> <br /> <span style="white-space:normal;"> </span>車(chē)用尿素液的純凈度是區分尿素液質(zhì)量劣的重要指標。車(chē)用尿素溶液雖然看著(zhù)是透明的液體，但里面含有很多的不溶物，比如縮二脲、縮三脲等，如果這些膠體物質(zhì)含量過(guò)高，會(huì )產(chǎn)生氰尿酸結晶。<br /> <br /> <span style="white-space:normal;"> </span>三、用車(chē)習慣不良:<br /> <br /> <span style="white-space:normal;"> </span>很多卡友在用車(chē)時(shí)，對SCR后系統的維護和保養不到位，所以建議大家：定期更換尿素濾芯，氣驅尿素泵、空氣輔助式尿素泵以及空氣濾芯；尿素罐內部容易積累雜質(zhì)沉淀物和結晶，所以要定期清洗，同時(shí)尿素罐外部也要注意清潔，尤其是罐蓋子周?chē)?，加注尿素時(shí)別讓贓物掉進(jìn)罐里；尿素噴嘴、管路等也會(huì )出現結晶堵塞的現象，建議用戶(hù)根據廠(chǎng)家建議到服務(wù)站作保養、檢查和維護。<br /> <div style="white-space:nowrap;"> <br /> </div></div> <div id="e4uga4y" class="article_editor"> 來(lái)源：本站編輯：超級管理員</div> <div id="mgc242e" class="article_tools"> <a href="javascript:window.print();"><span id="gk22uy2" class="icon-print text-gray"></span> 打印該頁(yè)</a> <a href="javascript:window.close();"><span id="q2yu4wo" class="icon-times-circle text-gray"></span> 關(guān)閉窗口</a> <a href="javascript:;" class="win-backtop"><span id="umwqos4" class="icon-arrow-circle-up text-gray"></span> 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