鍋爐除塵器按清灰方式分類-河北眾明環?？萍加邢薰?/title> <meta name="keywords" content=""> <meta name="description" content=""> <link href="/template/170044/index/css/css.css" rel="stylesheet" type="text/css" /> <script src="/template/170044/index/js/jquery.js"></script> <script src="/template/170044/index/js/jquery.SuperSlide.2.1.js"></script> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head> <body> <div style="position:fixed;left:-9000px;top:-9000px;"><th id="z17xx"><var id="z17xx"><strike id="z17xx"><th id="z17xx"></th></strike></var></th><address id="z17xx"></address><progress id="z17xx"></progress><thead id="z17xx"><ins id="z17xx"></ins></thead><var id="z17xx"><video id="z17xx"></video></var><dl id="z17xx"><progress id="z17xx"></progress></dl><menuitem id="z17xx"></menuitem><address id="z17xx"></address><cite id="z17xx"><span id="z17xx"></span></cite><dl 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text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">隨著社會的發展，環保行業的不斷創新，鍋爐除塵器也日益受到追捧，鍋爐除塵器是鍋爐及工業生產中的常用配套設備。鍋爐在使用的過程中不可避免地產生粉塵和煙氣，鍋爐除塵器就是把鍋爐中的粉塵從煙氣中分離出來，從而減少降低排入大氣層中的煙塵量，并且有利于進一步對煙氣進行脫硫脫硝處理。鍋爐除塵器是改善環境污染，提高空氣質量的重要環保設備。鍋爐除塵器的應用迅速普及，由于其除塵效率高，設備損耗小，設備在高溫，處理煙氣量大，設備維護費用低等優點，得到了相關廠家廣泛的應用。鍋爐除塵器設有旁路煙道，當鍋爐啟動時，開啟旁路煙道，以防止點火時投油燃燒不好，油粘在濾袋上，遇明火將濾袋燒毀。當鍋爐發生事故排煙溫度超過濾袋允許溫度時，開啟旁路。該系列除塵器還設有檢漏裝置，由多個探頭，一臺濁度儀組成，根據煙的濁度判斷濾袋是否泄漏；同時在灰斗設有空氣炮。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">鍋爐除塵器防止糊袋有哪方法：糊袋的主要原因是水或油在濾袋部粉層的黏結，為了避免造成糊袋，投運之初對除塵器進行預噴涂后，除塵器PLC將控制除塵器在煙氣跨越水露點前運行旁路；點爐投油時運行旁路；運行之中煙溫過低、投；由時開啟旁通；鍋爐大量爆管時開啟旁路通道。鍋爐除塵器由灰斗、中箱體、上箱體、進出風管、濾袋與框架、噴吹裝置、排料機構、電控系統等部分組成，中箱體可為分室或分組結構。工作時，含塵氣體由進氣口進入灰斗通過濾袋時，塵氣得以分離，粉塵阻流在布袋外表面，凈氣則經過濾袋進入上箱體，再經上箱體上部出口、由風機排出。粉塵積附在濾袋內表面，且不斷增厚，使收塵器的阻力不斷上升。當控制柜時間繼電給出清灰信號時，脈沖閥按事先設定的程序逐排啟動電磁脈沖閥，脈沖閥得到信號后，瞬間釋放壓縮空氣，并引射周圍空氣形成強大的氣流對布袋進行反向清灰，清除附在濾袋外表面的粉塵，粉塵在重力的作用下沉入灰斗料倉，由卸灰閥排出。清灰結束后，濾袋又進入過濾狀態。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">清灰是燃煤鍋爐除塵器能長期持續工作的決定性要素。清灰的基本要求是從濾袋上迅速而均勻地剝落沉積的粉塵，同時通常又要求能保持一定的一次粉塵層，并且不損傷濾袋和消耗較少的動力。清灰方式的特征是燃煤鍋爐除塵器分類的主要依據。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">鍋爐除塵器按清灰方式的不同可分為：機械振動式、逆氣流清灰式、脈沖噴吹式、氣環反吹式及復合清灰式。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">1.機械式振打：利用機械裝置振打或搖動懸吊濾袋的框架，使濾袋產生振動而清落積灰。它包括人工振打、機械振打和高頻振動等方式。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">水平方向振打，通常在上部振打，也可在中部振打。垂直方向振打，也可利用偏心輪高速旋轉造成較高頻率的振動取得。前者清灰效果較好，但對濾袋(特別是袋口連接處)損壞較嚴重；后者清灰強度較弱。但對濾袋損害較輕。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">振動清灰時要求停止過濾，因而常常將除塵設備分隔成若干袋窒，順次逐室清灰，以保持除塵設備的連續運轉。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">2.逆氣流清灰：逆氣流清灰是利用與過濾氣流相反的氣流，使濾袋產生變形并使之產生振動而使粉塵層脫落。反向氣流的作用只是引起附著于濾袋表面的粉塵脫落的原因之一，更主要的是濾袋變形導致粉塵層脫落。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">逆氣流清灰也多采用分室工作制，利用閥門自動開閉。逐室地產生反向氣流。反向氣流可由系統主風機供給，或由專設的反吸(吹)風機供給。逆氣流清灰在整個濾袋上的氣流分布較均勻，振動不劇烈，對濾袋的損傷較小，但清灰作用較弱，因而允許的過濾風速較低。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">某些逆氣流清灰裝置設有產生脈動作用的機械結構(如自動開、閉閥門)，便可給反向氣流以脈動作用，從而會增加清灰能力。若采用部分濾袋逐次清灰時，則不采用分室結構。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">3.脈沖噴吹清灰：將壓縮空氣在極短的時間內(不超過0.2s)高速噴入濾袋，同時誘導數倍于噴射氣量的空氣，使濾袋由袋口至底部產生急劇的膨脹和沖擊振動，產生很強的清落積灰的作用。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">在濾袋袋口大多裝有引射器加強誘導作用，也有不裝引射器，直接利用袋口起引射作用的。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">根據脈沖噴吹氣流與凈化氣流前方向異同，有逆噴與順噴兩種方式。逆噴式為兩股氣流方向相反，凈化后的氣流由袋口排出；順噴式為兩股氣流方向一致，凈化后的氣流由濾袋底部排出。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">噴吹時，因為是依次逐排地對濾袋清灰，而且噴吹時間很短，被清灰的濾袋雖然不起過濾作用，但其占總濾袋的比例很小，幾乎可以將過濾看作是連續的，因此通常不采取分室結構。脈沖噴吹清灰作用很強，而且其強度和頻率都可以調節，清灰效果很好，可以允許采用較高過濾風速。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">脈沖噴吹清灰也有做成分室結構，稱作氣箱脈沖噴吹。其特點是將濾袋分成若干組，將濾袋上方的凈氣箱按各組分隔形成分室，袋口不設引射器。清灰時，關閉排氣口閥門，從一側向分室噴射脈沖氣流，氣流從分室進入濾袋，達到清灰目的，清灰按室順序逐步進行。</p><p style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); text-transform: none; line-height: 40px; text-indent: 28px; letter-spacing: normal; font-family: 微軟雅黑; font-size: 17px; font-style: normal; font-weight: 500; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">4.噴嘴反吹清灰：一個帶狹縫的圓環或平板噴嘴設置在濾袋的外側與高壓風機管道相接。噴嘴貼近濾袋的表面作上下或左右往復運動，由其上正對濾布表面的狹縫噴出高速氣流，清除附著于濾袋內側的粉塵層。此時濾袋的其余部分仍處于全負荷運行中，這種清灰方式可使除塵器保持連續運行。</p><p></p></div> <div class="page">上一篇：沒有了<br/>下一篇：沒有了</p></div> </div> </div> </div> <div class="footerbg"> <div class="footer"> <div class="left"> <p>TEL：15632773191</p><p><a target="_blank"><font color="#ffffff">備案號：冀ICP備19008641號-1</font></a></p><p> 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