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href="http://www.cdcfah.com/cp/second-jxjxysb_crsbje/">傳熱設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-crsbje_qtcrsbpw/">其他傳熱設(shè)備</a>?浙江空氣預(yù)熱器價格推薦咨詢上海板換機(jī)械設(shè)備供應(yīng)</p><div id="yh8mbcl" class="leftbox clearfix"><h1>浙江空氣預(yù)熱器價格推薦咨詢上海板換機(jī)械設(shè)備供應(yīng)</h1><div id="5xeqkld" class="proBig"><div id="zd83jac" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220411145419922/7208407.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ptl78yq" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220411145419922/7208407.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="sw37kbi" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>浙江空氣預(yù)熱器價格,空氣預(yù)熱器</p><p><span>***更新：</span>2020-12-30 13:09:28</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="jsumbsu" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海板換機(jī)械設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>張云周</p><p><span>郵箱: </span>shinfo@shphe.com</p><p><span>電話: </span>15921733465</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.shphe.com</p><p><span>手機(jī): </span>021-57247534</p><p><span>地址: </span>山陽鎮(zhèn)山寧路99號</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="bvsujfc" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="tif8rog" class="box"><p><p> 對于因氨量瞬間過大造成***氫氨堵塞空預(yù)器情況時有發(fā)生，為了預(yù)防空預(yù)器及風(fēng)煙系統(tǒng)的安全、經(jīng)濟(jì)運(yùn)行，應(yīng)該制定定期工作，各單元機(jī)組均應(yīng)按規(guī)定認(rèn)真執(zhí)行。每月20日中班，選取負(fù)荷大于80%階段（250MW、480MW），進(jìn)行兩個小時空預(yù)器升溫工作，A、B兩側(cè)分別進(jìn)行。減小送風(fēng)量（或增大引風(fēng)機(jī)開度）以提高該側(cè)煙溫至160~170℃之間，注意比較高點(diǎn)不能超過170℃（針對布袋除塵器，排煙溫度不可超過180℃。若無此限值，則應(yīng)升高至230℃更佳）。每年10月底至4月初暖風(fēng)器轉(zhuǎn)入運(yùn)位后，升溫期間利用該側(cè)暖風(fēng)器，根據(jù)煙溫變化情況和預(yù)熱器電流變化情況提高送風(fēng)溫度至30~40℃之間，其余時間不用投入暖風(fēng)器。4，浙江空氣預(yù)熱器價格.升溫消除空預(yù)器壓差增大方法及注意事項(xiàng)鍋爐運(yùn)行中，浙江空氣預(yù)熱器價格，預(yù)熱器阻力超過，應(yīng)開始執(zhí)行以下措施：投入該側(cè)暖風(fēng)器，浙江空氣預(yù)熱器價格，根據(jù)煙溫變化情況和預(yù)熱器電流變化情況提高送風(fēng)溫度至30~40℃之間（暖風(fēng)器停運(yùn)期間除外）。減小送風(fēng)量（增大引風(fēng)機(jī)開度）以提高該側(cè)煙溫至160~165℃之間，注意比較高點(diǎn)不能超過170℃（針對布袋除塵器，排煙溫度不可超過180℃，若無此限值，則應(yīng)升高至230℃更佳）。加強(qiáng)預(yù)熱器蒸汽吹灰頻次（投入空預(yù)器蒸汽連續(xù)吹灰），直至阻力下降至（75%以上負(fù)荷）以下。專業(yè)生產(chǎn)板式空氣預(yù)熱器廠家。浙江空氣預(yù)熱器價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江空氣預(yù)熱器價格,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220411145419922/7208407.jpg"></div><p> 供熱溫度不能滿足要求產(chǎn)生原因：①一次側(cè)介質(zhì)流量不足，導(dǎo)致熱側(cè)溫差大，壓降小。②冷側(cè)溫度低，并且冷、熱末端溫度低。③并聯(lián)運(yùn)行的多臺板式換熱器流量分配不均。④換熱器內(nèi)部結(jié)垢嚴(yán)重。處理方法：①增加熱源的流量或加大熱源介質(zhì)管路直徑。②平衡并聯(lián)運(yùn)行的多臺板式換熱器的流量。③拆開板式換熱器清洗板片表面結(jié)垢。[6]板式換熱器主要控制參數(shù)編輯板水加熱器的主要控制參數(shù)為水加熱器的單板換熱面積、總換熱面積、熱水產(chǎn)量、換熱量、傳熱系數(shù)K、設(shè)計壓力、工作壓力、熱媒參數(shù)等。板式換熱器產(chǎn)品選用要點(diǎn)編輯⒈板式換熱器選用控制參數(shù)為換熱器材質(zhì)、工作壓力、設(shè)計溫度等。⒉選用換熱器時，應(yīng)盡量使換熱系數(shù)小的一側(cè)得到大的流速，并且盡量使兩流體換熱面兩側(cè)的換熱系數(shù)相等或相近，提高傳熱系數(shù)。經(jīng)換熱器加熱的流體溫度應(yīng)比換熱器出口壓力下的飽和溫度低10℃，且應(yīng)低于二次水所用水泵的工作溫度。⒊含有泥沙臟物的流體宜經(jīng)過過濾后進(jìn)入換熱器。⒋選用板式換熱器時，溫差較小側(cè)流體的接口處流速不宜過大，應(yīng)能滿足壓力降的要求。⒌對于流量大允許壓力降小的情況應(yīng)選用阻力小的板型，反之，選用阻力大的板型。⒍根據(jù)流體壓力和溫度情況選用可拆卸式或電焊式。湖南空氣預(yù)熱器電話板式空氣預(yù)熱器價格。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江空氣預(yù)熱器價格,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405039599609/9723902.jpg"></div><p> 空預(yù)器吹灰壓力、疏水溫度，脫硝催化劑出口氨逃逸等表計的檢測維護(hù)，保證指示準(zhǔn)確?？疹A(yù)器檢修中要通過校直大軸、修復(fù)密封片、利用新型密封技術(shù)等降低空預(yù)器漏風(fēng)率，提高空預(yù)器出口排煙溫度。C級及以上計劃檢修時，根據(jù)空預(yù)器腐蝕、積灰情況把蓄熱元件拆包徹底清洗，冷、熱端蓄熱元件復(fù)裝時調(diào)換位置使用。部分電廠聘請專業(yè)清洗公司用高壓射流清洗車對空預(yù)器蓄熱元件在不吊出的情況下進(jìn)行沖洗?？疹A(yù)器堵塞嚴(yán)重的，要分析蓄熱元件高度和直徑設(shè)計是否合理，必要時進(jìn)行大通道蓄熱元件換型改造（改成L型直通道），或進(jìn)行空預(yù)器增加直徑改造。投用暖風(fēng)器或熱風(fēng)再循環(huán)系統(tǒng)，將對機(jī)組經(jīng)濟(jì)性產(chǎn)生不利影響，機(jī)組煤耗將上升1-3g/kWh，因此，在冷端綜合溫度（或冷端平均溫度）滿足要求的情況下，應(yīng)及時停用暖風(fēng)器或熱風(fēng)再循環(huán)系統(tǒng)，防止過量投入造成能耗增加。 </p><p> 扭矩臂被固定在頂部結(jié)構(gòu)上的扭矩臂支座內(nèi)。扭矩臂支座通過扭矩臂給驅(qū)動機(jī)構(gòu)一個反作用扭轉(zhuǎn)力矩從而驅(qū)動驅(qū)動軸和轉(zhuǎn)子旋轉(zhuǎn)，而驅(qū)動裝置扭矩臂沿垂直方向可以在扭矩臂支座內(nèi)上下自由移動，以適應(yīng)轉(zhuǎn)子與頂部結(jié)構(gòu)的熱態(tài)漲差。主電機(jī)的非驅(qū)動端設(shè)有鍵連接的輸出軸，以便在維護(hù)時用盤車手柄進(jìn)行手動盤車。減速箱為油浴潤滑。10、底部推力軸承轉(zhuǎn)子由自調(diào)球面滾子推力軸承支撐，底部軸承箱固定在支撐凳板上。轉(zhuǎn)子的全部旋轉(zhuǎn)重量均由推力軸承支撐。底部軸承箱在定位后，將螺栓和定位墊板一起鎖定，并將墊板焊在支撐板上。底部軸承兩側(cè)均設(shè)有防護(hù)網(wǎng)，以防止空預(yù)器正常運(yùn)行時無關(guān)人員靠近轉(zhuǎn)動部位而發(fā)生意外。底部軸承采用油浴潤滑。軸承箱上裝有注油器和油位計，并開有用于安裝測溫元件的1/2”BSP螺紋孔。底部軸承箱下面配有不同厚度的調(diào)整墊片。用于現(xiàn)場調(diào)整轉(zhuǎn)子的上下位置和頂?shù)讖较蛎芊忾g隙的大小。安裝時還應(yīng)適當(dāng)增加墊片數(shù)量用以補(bǔ)償?shù)琢撼休d后的彎曲變形。11、頂部導(dǎo)向軸承頂部導(dǎo)向軸承為球面滾子軸承，安裝在軸套上。軸套裝在轉(zhuǎn)子驅(qū)動軸上，并用鎖緊盤與之固定．導(dǎo)向軸承和軸套的大部分處于頂部軸承箱內(nèi)。頂部承箱兩側(cè)焊有槽形支臂。板式空氣預(yù)熱器每個模塊均自帶外框架。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江空氣預(yù)熱器價格,空氣預(yù)熱器" src="http://tyunfile.71360.com/UploadFile/shbhjxsb/637220405032539062/8800983.jpg"></div><p> 通過調(diào)節(jié)固定在頂部結(jié)構(gòu)上的螺栓和支臂的相對位置來改變轉(zhuǎn)子頂部軸承中心的位置，從而達(dá)到調(diào)整轉(zhuǎn)子中心線位置的目的。頂部軸承支臂與頂部結(jié)構(gòu)用8個鎖緊螺栓和上下墊板定位固足，待頂部軸承位置**終調(diào)整就位后，即可將上述墊板與頂部結(jié)構(gòu)的翼板焊在一起。頂部軸承采用油浴潤滑，潤滑油等級與底部推力軸承相同。頂部軸承箱上有加油孔、注油器、油位計、呼吸器和放油塞。另外還設(shè)有用于安裝測溫元件的1/2”BSP螺紋孔。12、轉(zhuǎn)子密封系統(tǒng)空預(yù)器的密封系統(tǒng)由轉(zhuǎn)子徑向、軸向、環(huán)向以及轉(zhuǎn)子中心筒密封組成。13、徑向密封徑向密封片安裝在轉(zhuǎn)子徑向隔板的上、下緣。密封片由，與6mm厚的低碳鋼壓板一起通過自鎖螺母固定在轉(zhuǎn)子隔板上。所有密封片均設(shè)計呈單片直葉型．徑向密封片用來減小空氣到煙氣的直接漏風(fēng)。14、軸向密封軸向密封片和徑向密封片一起，用于減小轉(zhuǎn)子和密封擋板之間的間隙。軸向密封片由，安裝在轉(zhuǎn)子徑向隔板的垂直外緣處，其冷態(tài)位置的設(shè)定應(yīng)保證鍋爐帶負(fù)荷運(yùn)行以及停爐時無冷風(fēng)時與軸向密封板之間保持**小的密封間隙。軸向密封的固定方式與徑向密封片相同。軸向密封片供貨時兩端均留有修整余量，現(xiàn)場可根據(jù)轉(zhuǎn)子外緣角鋼**終的實(shí)際位置進(jìn)行栽切。板式空氣預(yù)熱器有什么優(yōu)勢？浙江空氣預(yù)熱器價格</p><p style="text-indent:25px">用板式空氣預(yù)熱器回收高溫?zé)煔鉄崮埽A(yù)熱廢氣溫度。浙江空氣預(yù)熱器價格</p><p> 投入暖風(fēng)器或熱風(fēng)再循環(huán)努力控制空預(yù)器綜合冷端溫度不低于目標(biāo)溫度?？疹A(yù)器出口綜合冷端溫度低于目標(biāo)值時，優(yōu)先采用降低磨煤機(jī)出口溫度，適當(dāng)增加一次風(fēng)比例（注意鍋爐燃燒和飛灰含碳量的變化情況），以提高空預(yù)器出口排煙溫度?？疹A(yù)器蒸汽吹灰疏水溫度控制在比吹灰母管壓力對應(yīng)的飽和溫度高5-20℃范圍內(nèi)，空預(yù)器實(shí)際排煙溫度高于目標(biāo)綜合冷端溫度時，取下限，否則取上限。安裝并運(yùn)行脫硝裝置的鍋爐，要防止局部或部分時段噴氨過量引起的氨逃逸量超標(biāo)(≯3ppm)。優(yōu)化鍋爐配風(fēng)，利用煙氣再循環(huán)，防止過氧（必要時根據(jù)CO生成量適度控制低氧）燃燒和爐膛局部溫度過高，減少爐內(nèi)SO3的生成?？疹A(yù)器煙氣側(cè)差壓超過設(shè)計值或空預(yù)器冷端溫度低于目標(biāo)溫度時，應(yīng)增加吹灰頻次，煙氣側(cè)差壓超過，提高空預(yù)器冷端吹灰器彈簧閥后壓力（比較高至）加強(qiáng)吹灰，當(dāng)差壓恢復(fù)正常值范圍內(nèi)，逐漸恢復(fù)正常吹灰壓力，防止吹損蓄熱元件。加強(qiáng)鍋爐暖風(fēng)器、熱風(fēng)再循環(huán)、空預(yù)器扇形板自動調(diào)整裝置設(shè)備的運(yùn)行維護(hù)，保證設(shè)備運(yùn)行良好。暖風(fēng)器、鍋爐受熱面（特別是省煤器）泄漏后要及時隔離或停爐處理。空預(yù)器停爐進(jìn)行水沖洗后，啟動點(diǎn)火前要充分烘干。要加強(qiáng)空預(yù)器進(jìn)出口差壓、溫度。浙江空氣預(yù)熱器價格</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2631082.html</p></div></div></div></div></div><div id="m3w78z3" class="page-right twoColRt"><div id="zi8gx8d" class="box01 margin10 clearfix"><h3><a 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