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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>蘇州耐酸離心泵效率,離心泵</p><p><span>***更新：</span>2021-01-19 09:05:56</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="kurya8s" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">靖江市瑞鑫泵業(yè)有限公司</a></p><p><span>聯(lián)系人：</span>王宇琳</p><p><span>郵箱: </span>www17768716667@163.com</p><p><span>電話: </span>17768716667</p><p><span>傳真: </span>0523_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0523-84326878</p><p><span>地址: </span>新橋鎮(zhèn)水三村巴五圩14號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="gqnf2l7" class="page-proshow02"><p class="title">詳細說明</p><div id="2tfctkm" class="box"><p><p> 改變泵的轉(zhuǎn)速 </p> <p> 改變泵的轉(zhuǎn)速實質(zhì)上是改變泵的特性曲線。泵原來轉(zhuǎn)速為n，工作點為M，如下圖所示，若把泵的轉(zhuǎn)速提高到n1，蘇州耐酸離心泵效率，泵的特性曲線 H——Q往上移，工作點由M移至M1，流量由QM加大到QM1。若把泵的轉(zhuǎn)速降至n2，工作點移至M2，流量降至QM2。 </p> <p> 這種調(diào)節(jié)方法需要變速裝置或價格昂貴的變速原動機，且難以做到連續(xù)調(diào)節(jié)流量，蘇州耐酸離心泵效率，蘇州耐酸離心泵效率，故化工生產(chǎn)中很少采用。 </p> <p> 用閥門調(diào)節(jié)流量迅速方便，且流量可以連續(xù)變化，適合化工連續(xù)生產(chǎn)的特點。所以應(yīng)用十分廣。缺點是閥門關(guān)小時，阻力損失加大，能量消耗增多，很不經(jīng)濟。靖江市瑞鑫泵業(yè)有限公司——給您質(zhì)量服務(wù)。蘇州耐酸離心泵效率</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州耐酸離心泵效率,離心泵" src="https://tyunfile.71360.com/WaterMark/UploadFile/jjsrxby/637261969247363281/978912.png"></div><p> 離心泵停止運轉(zhuǎn)后的要求 </p> <p> 離心泵停止運轉(zhuǎn)后應(yīng)關(guān)閉泵的人口閥門，待泵冷卻后再依次關(guān)閉附屬系統(tǒng)的閥門。 </p> <p> 高溫泵停車應(yīng)按設(shè)備技術(shù)文件的規(guī)定執(zhí)行，停車后應(yīng)每偏20一30min盤車半圈，直到泵體溫度降至50℃為止。 </p> <p> 低溫泵停車時，當無特殊要求時，泵內(nèi)應(yīng)經(jīng)常充滿液體；吸入閥和排出閥應(yīng)保持常開狀態(tài)；采用雙端面機械密封的低溫泵，液位控制器和泵密封腔內(nèi)的密封液應(yīng)保持泵的灌漿壓力。 </p> <p> 輸送易結(jié)晶，易凝固，易沉淀等介質(zhì)的泵，停泵后應(yīng)防止堵塞，并及時用清水或其他介質(zhì)沖洗泵和管道。 </p> <p> 排出泵內(nèi)積存的液體，防止銹蝕和凍裂。徐州污水離心泵效率靖江市瑞鑫泵業(yè)有限公司——質(zhì)量服務(wù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州耐酸離心泵效率,離心泵" src="https://tyunfile.71360.com/WaterMark/UploadFile/jjsrxby/637261653946699218/2958278.png"></div><p> 離心泵功率與效率 </p> <p> 泵在運轉(zhuǎn)過程中由于存在種種損失，使泵的實際（有效）壓頭和流量均較理論值為低，而輸入泵的功率較理論值為高，設(shè) </p> <p> H______ 泵的有效壓頭，即單位量液體在重力場中從泵獲得的能量，m； </p> <p> Q ______ 泵的實際流量，m3/s； </p> <p> ρ ______ 液體密度，kg/ m3； </p> <p> Ne______ 泵的有效功率，即單位時間內(nèi)液體從泵處獲得的機械能，W。 </p> <p> 有效功率可寫成 Ne = QHρg </p> <p> 由電機輸入離心泵的功率稱為泵的軸功率，以N表示。有效功率與軸功率之比定義為泵的總效率η，即 </p> <p> η=Ne/N </p><p> 但在處理泵的振動問題時卻通常是首先考慮的因素。引起振動的這一類原因的主要原因包括：a.臨界轉(zhuǎn)速問題——這類問題實際上在以全速運行的臥式泵內(nèi)是不存在的：生產(chǎn)商已對泵進行了設(shè)計，因此其臨界轉(zhuǎn)速將高出高轉(zhuǎn)速。("臨界轉(zhuǎn)速"指激起旋轉(zhuǎn)設(shè)備自然頻率的理論角速度。旋轉(zhuǎn)速度達到自然頻率時便發(fā)生振動和共振。)在立式泵(如具有各類長度和轉(zhuǎn)頭的立式渦輪機)內(nèi)，臨界轉(zhuǎn)速應(yīng)在制造之前予以考慮。在臥式泵內(nèi)，臨界轉(zhuǎn)速通常由超速、缺少管道支撐件或未考慮的多泵組引起。(缺少管道支撐件時，管道實際上成為了"泵的一部分"，且系統(tǒng)的臨界轉(zhuǎn)速與泵的臨界轉(zhuǎn)速不同。)這與下文將討論的外部原因引起的問題相類似。可采用兩種方法糾正臨界轉(zhuǎn)速問題，將振動減少至可接受水平：1.改變泵的自然頻率，這一操作應(yīng)咨詢泵生產(chǎn)商或在其協(xié)助下進行。屬于常用方法。2.改變轉(zhuǎn)速(針對VFD系統(tǒng)時尤為有用)。通過臨界轉(zhuǎn)速"鎖定"或加速以預(yù)防機械運轉(zhuǎn)。b.嚴重氣濁——氣濁達到一定嚴重程度時(由NPSH或攜入的空氣引起)，內(nèi)爆的能量將引起整個裝置急劇振動。當然，隨著氣濁的繼續(xù)，泵輪材料將被腐蝕，振動也進一步加劇。合理選用泵則可避免此類情況出現(xiàn)，但隨著系統(tǒng)老化以及管道改變這類情況仍可發(fā)生。江蘇離心泵——靖江市瑞鑫泵業(yè)有限公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州耐酸離心泵效率,離心泵" src="https://tyunfile.71360.com/WaterMark/UploadFile/jjsrxby/637261969387871094/4291998.png"></div><p> 在石油、化工領(lǐng)域，使用**多的離心泵國際標準是API610、ISO5199和ANSIB73.1M/B73.2M等，國內(nèi)標準是GB3215和GB5656/T。 </p> <p> 1.1API610 </p> <p> API，是美國石油協(xié)會(AmericanPetroleumInstitute)的簡稱。出版API610標準的目的是為了提供一份采購規(guī)范，以便于離心泵的制造和采購。 </p> <p> 1.2 ISO5199 </p> <p> ISO是國際標準化組織的簡稱。ISO5199 Technical Specification for Centrifugal Pumps , ClassⅡ(離心泵技術(shù)規(guī)范Ⅱ級),主要依據(jù)是德國的DIN標準。 </p> <p> 1.3 ASMEB73.1M/B73.2M </p> <p> ASME是美國機械工程師協(xié)會(TheAmericanSocietyofMechanicalEngineers)的簡稱。江蘇口碑好離心泵——靖江市瑞鑫泵業(yè)有限公司。徐州污水離心泵效率</p><p style="text-indent:25px">江蘇供應(yīng)離心泵——靖江市瑞鑫泵業(yè)有限公司。蘇州耐酸離心泵效率</p><p> 技術(shù)參數(shù)：流量，揚程，泵送液體溫度范圍，系統(tǒng)承壓，軸功率蘇州耐酸離心泵效率</p> 離心泵可廣用于電力、冶金、煤炭、建材等行業(yè)輸送含有固體顆粒的漿體。如火電廠水力除灰、冶金選礦廠礦漿輸送、洗煤廠煤漿及重介輸送等。離心泵工作時，泵需要放在陸地上，吸水管放在水中，還需要灌泵啟動。泥漿泵和液下離心泵由于受到結(jié)構(gòu)的限制，工作時電機需要放在水面之上，泵放入水中，因此必須固定，否則，電機掉到水中會導(dǎo)致電機報廢。而且由于長軸長度一般固定，所以泵安裝使用較麻煩，應(yīng)用的場合受到很多的限制。<span style="display:none;"></span><p style="text-indent:25px">靖江市瑞鑫泵業(yè)有限公司主要經(jīng)營范圍是機械及行業(yè)設(shè)備，擁有一支專業(yè)技術(shù)團隊和良好的市場口碑。靖江瑞鑫泵業(yè)致力于為客戶提供良好的cz型化工流程泵，za型石油化工流程泵，ZE型石油化工流程泵，WFB型無密封自控自吸泵，一切以用戶需求為中心，深受廣大客戶的歡迎。公司將不斷增強企業(yè)重點競爭力，努力學(xué)習(xí)行業(yè)知識，遵守行業(yè)規(guī)范，植根于機械及行業(yè)設(shè)備行業(yè)的發(fā)展。靖江瑞鑫泵業(yè)秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實”的經(jīng)營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2915712.html</p></div></div></div></div></div><div id="mkp7lnk" class="page-right twoColRt"><div id="auwtqxz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3pm3xzb" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="qvsevce" class="recomPic 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