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08:43:48</div> <div id="9jxxvzd" class="proinfo"> <p style="text-align: center; "><img src="/uploads/attach/20210317/6051672674d9c.jpeg"/></p><p style="text-indent: 2em;">板式換熱器清洗公司分享板式換熱器堵塞后怎么辦?板式換熱器的結垢是指在固體表面逐漸儲存的固體物質(zhì)，與不潔凈的流體接觸。結垢對換熱設備的影響主要包括：由于污垢層導熱系數低，增加了傳熱阻力，降低了換熱設備的傳熱效率；當換熱設備表面形成結垢層時(shí)，減少了換熱設備中流體通道的過(guò)流面積，增加了流體通過(guò)設備阻力增加，從而消耗更多的泵功率，增加生產(chǎn)成本。根據結垢層沉積的機制，污垢可分為顆粒污垢、結晶污垢、化學(xué)反應污垢、侵蝕污垢、生物污垢等。</p><p style="text-indent: 2em;">1.顆粒污垢：懸浮在流體上的固體顆粒在換熱表面的儲存。該污垢還包括由于水平換熱表面重力的沉淀層，即所謂的沉淀污垢和其他膠體顆粒。</p><p style="text-indent: 2em;">2.結晶污垢：流體中溶解的無(wú)機鹽在熱交換表面結晶形成的沉積物通常發(fā)生在過(guò)飽和或冷卻時(shí)。典型的污垢，如冷卻水側的碳酸鈣、硫酸鈣和二氧化硅結垢層。</p><p style="text-indent: 2em;">3.化學(xué)反應污垢：傳熱面材料不參與傳熱表面長(cháng)期化學(xué)反應產(chǎn)生的污垢，但可作為化學(xué)反應的催化劑。</p><p style="text-indent: 2em;">4.侵蝕性污垢：侵蝕性流體或含有侵蝕性雜質(zhì)的流體侵蝕換熱表面產(chǎn)生的污垢。通常，侵蝕程度取決于流體中的成分。溫度和處理后的流體的pH值。</p><p style="text-indent: 2em;">5.生物污垢：除海水冷卻裝置外，一般生物污垢均為微生物污垢。它可能產(chǎn)生粘泥，反過(guò)來(lái)又為生物污垢的繁殖提供了前提；這種污垢對溫度非常敏感，在適當的溫度下，生物污垢可以產(chǎn)生相當厚的污垢層。</p><p style="text-indent: 2em;">6.固化污垢：流體在過(guò)冷的換熱表面固化而形成的污垢。例如，當水低于冰點(diǎn)時(shí)，它會(huì )在換熱表面固化成冰。溫度分布的平均值對這種污垢有很大的影響。</p><p style="text-indent: 2em;">板式換熱器堵塞結垢。</p><p style="text-indent: 2em;">1.堵塞</p><p style="text-indent: 2em;">直徑大于1.5~3mm的顆粒和雜物很容易阻擋板通道。板式換熱器的通道間隙較小，導致設備的換熱能力因堵塞而大大降低，嚴重導致設備連續生產(chǎn)。因此，根據需要，在介質(zhì)入口處設置粗濾器或反沖刷裝置，可有效防止板式換熱器堵塞。</p><p style="text-indent: 2em;">2.結垢</p><p style="text-indent: 2em;">在嚴重的情況下，板通道也會(huì )被堵塞。板式換熱器的板設計有大量的支撐點(diǎn)。結垢可降低傳熱設備的傳熱系數，旨在擾流介質(zhì)（使介質(zhì)紊流提高傳熱系數）和承壓支撐。固體雜物容易聚集的副作用是使流體形成局部滯流和自然污垢，介質(zhì)中的鈣鎂離子在相應溫度下沉淀后容易形成蜂窩狀結垢。</p><p><br/></p> </div> <div id="9rrn9ht" class="fenye-cont mt20"> <span>上一篇：<a href="/art/cjwt100.html">分析管式換熱器錯位的原因及處理方法</a></span> <span>下一篇：<a href="/art/zxdt102.html">安徽板式換熱器清洗的方法有哪些</a></span> </div> <div id="ztr915r" class="biaoqian mt30"> <b>標簽:</b> </div> <div id="fvxdf5z" class="textInfo 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id="fjd5z"><tt id="fjd5z"><label id="fjd5z"></label></tt></strong></progress><u id="fjd5z"><acronym id="fjd5z"><dfn id="fjd5z"><thead id="fjd5z"></thead></dfn></acronym></u><legend id="fjd5z"></legend><legend id="fjd5z"><u id="fjd5z"></u></legend><em id="fjd5z"><sup id="fjd5z"></sup></em></div> </html>   <link rel="stylesheet" type="text/css" href="/index/css/right.css"> <script type="text/javascript" src="/index/js/right.js"></script> <style> .kefu-left {background:#4499EE;} /* 風(fēng)格1 */ .kefu-backtop a {background:#4499EE;} /* 風(fēng)格2 */ .suspension .a {background-color:#4499EE;} .suspension .a.active, .suspension .a:hover {background:#4499EE;} </style>  <div id="p5bfxh9" class="suspension layui-hide-xs"> <div id="n5t5vbz" class="suspension-box"> <a href="#" class="a a-service"><i class="i"></i></a> <a href="javascript:;" class="a a-service-phone "><i class="i"></i></a> <a href="javascript:;" class="a a-qrcode"><i class="i"></i></a> <a href="javascript:;" class="a a-top" style="display: block;"><i class="i"></i></a> <div id="9zhh5nn" class="d d-service" style="display: none;"> <i class="arrow"></i> <div id="htzfhjj" class="inner-box"> </div> </div> <div id="znnrrtj" class="d d-service-phone" style="display: none;"> <i class="arrow"></i> <div id="dtpv5rv" class="inner-box"> <div id="jbh5fbd" class="d-service-item layui-clear"> <p>聯(lián)系人：柴義柱</p> <p>固話(huà)：</p> <p>手機：13966658525</p> </div> </div> </div> <div id="bptxzvp" class="d d-qrcode" style="display: none;"> <i class="arrow"></i> <div id="hn5p5r5" class="inner-box"> <div id="lflv51h" class="qrcode-img"><img src="" width="120" height="120" alt=""></div> <p>微信公眾號</p> </div> </div> </div> </div>   <style> .chat1 { position: fixed; bottom: 0; right: 60px; z-index: 9999999; padding: 0 20px; height: 40px; background: #007AFF; color: #fff; text-align: center; line-height: 40px; font-size: 17px; width: 180px; cursor: pointer; } .chat1 i { font-size: 24px; margin-right: 10px; } .chat2 { position: fixed; bottom: 0; right: 60px; z-index: 9999999; box-shadow: rgba(0, 0, 0, 0.16) 0 5px 40px; width: 330px; height: 480px; border-radius: 8px; background: #fff; display: none; } .chat2-title { display: flex; justify-content: space-between; align-items: center; background: #007AFF; height: 60px; line-height: 60px; border-radius: 8px 8px 0 0; padding: 0 15px; color: #fff; } .chat2-title .avatar { display: flex; align-items: center; } .chat2-title .avatar p { font-size: 18px; margin-left: 10px; } .chat2-title .avatar img { width: 40px; height: 40px; border-radius: 100%; } .chat2-text { height: 290px; overflow-y: auto; padding: 15px; position: relative; } .chatText-left { margin: 5px 0; } .chat2-text p { color: #999; } .chat2-text .chatText-desc { border: 1px solid #e1e1e1; border-radius: 3px; padding: 10px; font-size: 13px; line-height: 1.2; display: inline-block; } .chatText-right { margin: 5px 0; text-align: right; } .chat-textarea { border-top: 1px solid #e1e1e1; } .chat-textarea textarea { border: none; width: 100%; padding: 5px; height: 50px; color: #888; font-family: "宋體"; box-sizing: border-box; } .chat-click { float: right; cursor: pointer; } .chat-click span { width: 62px; height: 32px; background: #007AFF; color: #fff; text-align: center; line-height: 32px; display: block; border-radius: 4px; margin: 0 10px 10px 0; } .chatText-right .chatText-desc { background: #007AFF; color: #fff; border: 1px solid #007AFF; } @media only screen and (min-width: 320px) and (max-width: 640px){ .chat1{right:10px;width:24px;height:24px;bottom:1.15rem;border-radius:100%;padding:5px;line-height: 26px;} .chat2{width:100%;height:100vh;right:0;border-radius: 0;} .chat-textarea textarea{height: 120px} } </style> <script> //在線(xiàn)懸浮框 $(".chat1").click(function () { $(".chat2").slideDown(100); $(".chat1").hide(); }); $(".chat2 .chat2-down").click(function () { $(".chat2").slideUp(100); $(".chat1").show(100); }); //調取所有的聊天記錄 $(document).ready(function () { getMsgNum(); }); //請求指定的接口，獲取當前用戶(hù)的所有聊天記錄 function getMsgNum() { $.ajax({ url: "/api/msg/get_meassage.html", type: 'get', dataType: 'json', success: function (data) { var obj = data.data; //判斷回調的數據是否為空，為空的，則data字段不存在，obj為undefined if (obj !== undefined) { $.each(obj, function (name, value) { //用戶(hù)發(fā)送過(guò)的聊天內容 $('#message_list').append('<div id="pfl5lt5" class="chatText-right"><p>' + this.send_time + '</p><div id="fnntbdf" class="chatText-desc">' + this.send_content + '</div></div>'); //客服回復的內容 if (this.reply_time != null && this.reply_content != null) { $('#message_list').append('<div id="lvrbxnb" class="chatText-left"><p>' + this.reply_time + '</p><div id="xrvxjjb" class="chatText-desc">' + this.reply_content + '</div></div>'); } }); } } }); } //回車(chē)觸發(fā)點(diǎn)擊事件，提交聊天記錄 $(document).keyup(function (event) { if (event.keyCode == 13) { sendcontent(); } }); //發(fā)送留言信息 function sendcontent() { //獲取發(fā)送的內容 let send_content = $("#askContent").val().replace(/[\n\r]/g, '<br>'); //發(fā)送內容不為空時(shí)執行發(fā)送請求 if (send_content != "") { //生成隨機數 let num = parseInt(Math.random() * 1000); let sender = `user${num}`; //發(fā)送后清空輸入框 document.getElementById("askContent").value = ""; $.ajax({ url: "/api/msg/sendMessage.html", type: 'post', dataType: 'json', data: { "send_content": send_content, "sender": sender }, success: function (data) { //實(shí)時(shí)追加用戶(hù)發(fā)送的每一條記錄 $('#message_list').append('<div id="jzbd9ln" class="chatText-right"><p>' + data.data[0].send_time + '</p><div id="d5fprpt" class="chatText-desc">' + data.data[0].send_content + '</div></div>'); //延遲回復指定的客服信息 let timeId = setTimeout(function () { $('#message_list').append('<div id="blnptz5" class="chatText-left"><p>' + data.data[0].reply_time + '</p><div id="5v5dvd5" class="chatText-desc">' + data.data[0].reply_content + '</div></div>'); }, 5000); } }); } } //時(shí)間戳轉化成具體的日期2020-08-12 09:15:00 function timestampToTime(timestamp) { var date = new Date();//時(shí)間戳為10位需*1000，時(shí)間戳為13位的話(huà)不需乘1000 var Y = date.getFullYear() + '-'; var M = (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1) + '-'; var D = (date.getDate() < 10 ? '0' + date.getDate() : date.getDate()) + ' '; var h = (date.getHours() < 10 ? '0' + date.getHours() : date.getHours()) + ':'; var m = (date.getMinutes() < 10 ? '0' + date.getMinutes() : date.getMinutes()) + ':'; var s = (date.getSeconds() < 10 ? '0' + date.getSeconds() : date.getSeconds()); strDate = Y + M + D + h + m + s; return strDate; } </script>