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src="https://tyunfile.71360.com/UploadFile/jjsrxby/637261023335927735/1616540.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7z8pmel" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jjsrxby/637261023335927735/1616540.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3fht33j" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海耐酸離心泵功率,離心泵</p><p><span>***更新：</span>2021-01-23 07:05:02</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="y7rxpct" 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(jī): </span>0523-84326878</p><p><span>地址: </span>新橋鎮(zhèn)水三村巴五圩14號(hào)</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="mld7oiu" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="mb8hzqx" class="box"><p><p> 是一種較快的止回閥；多瓣旋啟式止回閥適用與大口徑管路.2.泵出口止回閥的安裝①旋啟式止回閥一般安裝在水平管道上：對(duì)于口徑DN~80mm的止回閥，上海耐酸離心泵功率，也可安裝在垂直或向上傾斜的管道上。②直通式升降式止回閥應(yīng)安裝在水平管道上；立式升降式止回閥必須安裝在垂直管道上，介質(zhì)為自下而上流動(dòng)。③由于止回閥容易損壞，上海耐酸離心泵功率，因此，應(yīng)靠近泵出口安裝止回閥，在止回閥上部設(shè)有切斷閥(一般用球閥或閘閥)，方便檢修。④為便于止回閥拆卸前泄壓，對(duì)于止回閥本身不帶放凈閥的，應(yīng)在止回閥與切斷閥之間加裝泄壓用放凈閥。3.防止水力沖擊對(duì)止回閥密封面損壞的保護(hù)措施止回閥的設(shè)置,起到了防止物料倒流，避免泵葉輪遭受液擊的作用。但就止回閥本身而言,設(shè)置不當(dāng),會(huì)造成水擊所產(chǎn)生的閥瓣對(duì)閥座的突然撞擊，損及止回閥密封面。因此，應(yīng)采取以幾點(diǎn)保護(hù)措施。1、對(duì)于泵出口設(shè)置>80mm的旋啟式止回閥，應(yīng)采用水平安裝方式，以減弱閥瓣回座及產(chǎn)生的撞擊。2，上海耐酸離心泵功率、對(duì)于泵出口止回閥口徑>=150mm的管路，應(yīng)在止回閥前后設(shè)置旁路，防止閥前壓力上升過(guò)高，對(duì)止回閥密封面造成的損害。3、對(duì)泵排出管路起點(diǎn)和終點(diǎn)壓力較高管路，不允許設(shè)置旁路的，可采取以下措施。設(shè)置安全閥以代替旁路閥。其作用與旁路閥相似。江蘇離心泵——靖江市瑞鑫泵業(yè)有限公司。上海耐酸離心泵功率</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海耐酸離心泵功率,離心泵" src="https://tyunfile.71360.com/UploadFile/jjsrxby/637261023335927735/1616540.png"></div><p> 但在處理泵的振動(dòng)問(wèn)題時(shí)卻通常是首先考慮的因素。引起振動(dòng)的這一類原因的主要原因包括：a.臨界轉(zhuǎn)速問(wèn)題——這類問(wèn)題實(shí)際上在以全速運(yùn)行的臥式泵內(nèi)是不存在的：生產(chǎn)商已對(duì)泵進(jìn)行了設(shè)計(jì)，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(dá)到自然頻率時(shí)便發(fā)生振動(dòng)和共振。)在立式泵(如具有各類長(zhǎng)度和轉(zhuǎn)頭的立式渦輪機(jī))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(shí)，管道實(shí)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(wèn)題相類似。可采用兩種方法糾正臨界轉(zhuǎn)速問(wèn)題，將振動(dòng)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(jìn)行。屬于常用方法。2.改變轉(zhuǎn)速(針對(duì)VFD系統(tǒng)時(shí)尤為有用)。通過(guò)臨界轉(zhuǎn)速"鎖定"或加速以預(yù)防機(jī)械運(yùn)轉(zhuǎn)。b.嚴(yán)重氣濁——?dú)鉂徇_(dá)到一定嚴(yán)重程度時(shí)(由NPSH或攜入的空氣引起)，內(nèi)爆的能量將引起整個(gè)裝置急劇振動(dòng)。當(dāng)然，隨著氣濁的繼續(xù)，泵輪材料將被腐蝕，振動(dòng)也進(jìn)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。上海耐酸離心泵功率江蘇地區(qū)專業(yè)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="上海耐酸離心泵功率,離心泵" src="https://tyunfile.71360.com/WaterMark/UploadFile/jjsrxby/637261969387871094/4291998.png"></div><p> 離心泵功率與效率 </p> <p> 泵在運(yùn)轉(zhuǎn)過(guò)程中由于存在種種損失，使泵的實(shí)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(chǎng)中從泵獲得的能量，m； </p> <p> Q ______ 泵的實(shí)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(shí)間內(nèi)液體從泵處獲得的機(jī)械能，W。 </p> <p> 有效功率可寫(xiě)成 Ne = QHρg </p> <p> 由電機(jī)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> 02流量不足故障分析：電動(dòng)機(jī)轉(zhuǎn)速不夠；螺桿。或齒輪）與泵套磨損；安全閥損壞或標(biāo)定過(guò)低。解決方法：確定電機(jī)額定轉(zhuǎn)速是否符合設(shè)計(jì)要求，檢查電制電壓是否滿足電機(jī)要求；更換相關(guān)部件。重新標(biāo)定安全閥，使之達(dá)到設(shè)計(jì)要求。若損壞，更換或維修。03壓力波動(dòng)大故障分析：吸入管路漏氣；泵螺桿與泵套不同心；安全閥沒(méi)有標(biāo)定好，或工作壓力過(guò)大，使安全法時(shí)開(kāi)時(shí)閉。解決方法：檢查管路并維修好；檢修調(diào)整或更換；重新標(biāo)定安全閥或降低工作壓力。04機(jī)械密封漏油故障分析：機(jī)械密封損壞；密封壓蓋未壓平；裝配位置不對(duì)。解決方法：更換機(jī)械密封；調(diào)整密封壓蓋；重新按技術(shù)要求裝配。05泵過(guò)熱故障分析：泵螺桿與泵套配合太緊；機(jī)械密封回油孔堵塞；介子溫度過(guò)高。解決方法：檢查調(diào)整泵螺桿與泵套間隙，必要的話，要更換部件；疏通回油孔；采取必要的措施，降低介子溫度。06泵振動(dòng)大故障分析：泵與電動(dòng)機(jī)不同心；泵內(nèi)有空氣；螺桿與泵套不同心或間隙大；安裝高度過(guò)高，泵內(nèi)產(chǎn)生氣蝕。解決方法：調(diào)整位置，重新對(duì)中；檢查吸入管路，排除漏氣部位；檢修調(diào)整或更換；降低安裝高度。靖江市瑞鑫泵業(yè)有限公司——?dú)g迎您的來(lái)電詳詢。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海耐酸離心泵功率,離心泵" src="https://tyunfile.71360.com/WaterMark/UploadFile/jjsrxby/637261653946699218/2958278.png"></div><p> 離心泵按安裝高度分類 </p> <p> 自灌式離心泵：泵軸低于吸水池池面，啟動(dòng)時(shí)不需要灌水，可自動(dòng)啟動(dòng)。 </p> <p> 吸入式離心泵（非自灌式離心泵）：泵軸高于吸水池池面。啟動(dòng)前，需要先用水灌滿泵殼和吸水管道，然后驅(qū)動(dòng)電機(jī)，使葉輪高速旋轉(zhuǎn)運(yùn)動(dòng)，水受到離心力作用被甩出葉輪，葉輪中心形成負(fù)壓，吸水池中水在大氣壓作用下進(jìn)入葉輪，又受到高速旋轉(zhuǎn)的葉輪作用，被甩出葉輪進(jìn)入壓水管道。 </p> <p> 根據(jù)用途也可進(jìn)行分類，如油泵、水泵、凝結(jié)水泵、排灰泵、循環(huán)水泵等。上海地區(qū)離心泵定制廠家——靖江市瑞鑫泵業(yè)有限公司。常州臥式離心泵維修</p><p style="text-indent:25px">江蘇定制離心泵——靖江市瑞鑫泵業(yè)有限公司。上海耐酸離心泵功率</p><p> 安裝原因：基礎(chǔ)螺栓松脫、校調(diào)的水平度沒(méi)有調(diào)整好，在離心泵工作之前，要檢查一下其基礎(chǔ)螺栓是否有松動(dòng)的現(xiàn)象，以及離心泵的安裝是否水平。這些也會(huì)造成離心泵在工作的時(shí)候發(fā)生振動(dòng)的情況。 </p> <p> 離心泵內(nèi)有異物。在離心泵工作之前，要檢查下泵內(nèi)部，由于長(zhǎng)期使用，在離心泵的內(nèi)部可能存在一些例如水中的雜草等異物。 </p> <p> 由于長(zhǎng)時(shí)間的使用造成離心泵內(nèi)部的氣蝕穿孔。 </p> <p> 離心泵的設(shè)計(jì)方面存在不合理的情況，例如零件大小尺寸等問(wèn)題。不過(guò)這種情況相對(duì)較少。離心泵在出廠之前，都會(huì)在車(chē)間內(nèi)部進(jìn)行多次的檢測(cè)工作，以保證出廠離心泵的合格率。上海耐酸離心泵功率</p><p style="text-indent:25px">靖江市瑞鑫泵業(yè)有限公司總部位于新橋鎮(zhèn)水三村巴五圩14號(hào)，是一家靖江市瑞鑫泵業(yè)有限公司主要是一家經(jīng)營(yíng)泵、閥門(mén)、耐熱耐磨鋼制品、電力機(jī)械、冶金機(jī)械、化工機(jī)械、礦山機(jī)械、制藥**設(shè)備、機(jī)械零部件制造、加工、銷售。的一家公司。（依法須經(jīng)批準(zhǔn)的項(xiàng)目，經(jīng)相關(guān)部門(mén)批準(zhǔn)后方可開(kāi)展經(jīng)營(yíng)活動(dòng)）的公司。靖江瑞鑫泵業(yè)擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供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(wú)密封自控自吸泵。靖江瑞鑫泵業(yè)不斷開(kāi)拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺(tái)，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。靖江瑞鑫泵業(yè)創(chuàng)始人王宇琳，始終關(guān)注客戶，創(chuàng)新科技，竭誠(chéng)為客戶提供良好的服務(wù)。</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/2972846.html</p></div></div></div></div></div><div id="7yfcevh" class="page-right twoColRt"><div id="hrjldkh" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lamolsp" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img 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