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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="cro3ujq" 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>南京工業(yè)離心泵參數(shù),離心泵</p><p><span>***更新：</span>2021-01-23 04:08:32</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="mlxu2qs" 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="nce2ary" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="mgik7ho" class="box"><p><p> h.機(jī)械容差——即使單個(gè)部件的容差值在生產(chǎn)商規(guī)范所規(guī)定的范圍內(nèi)，機(jī)械容差仍可引起機(jī)械內(nèi)的振動(dòng)。簡(jiǎn)言之，南京工業(yè)離心泵參數(shù)，泵組裝的零件越多，(在其他條件相同的情況下)容差"累計(jì)"使機(jī)械產(chǎn)生振動(dòng)的風(fēng)險(xiǎn)越大。單個(gè)部件在檢查時(shí)可能在規(guī)范(通常為ASME/)允許的范圍內(nèi)，南京工業(yè)離心泵參數(shù)。由于這樣一個(gè)事實(shí)的存在，即采用可能產(chǎn)生問題的已加工部件查找并確定其他可能問題，上述情況將變得更為復(fù)雜。精確度和垂直狀態(tài)的檢查將難于在實(shí)地準(zhǔn)確測(cè)量，但是這是確定問題的途徑。i.在另一方面，如果容差直接涉及轉(zhuǎn)動(dòng)部件，則機(jī)械容差引起的振動(dòng)將易于診斷，南京工業(yè)離心泵參數(shù)。"失圓"或"失方"的加工部件可能導(dǎo)致在其他部件內(nèi)出現(xiàn)束縛或磨削。參考下文"外部原因?qū)е抡駝?dòng)"中的內(nèi)容，區(qū)別機(jī)械容差與管道校準(zhǔn)問題。j.機(jī)械松動(dòng)——為了便于討論，本文中的機(jī)械松動(dòng)*指螺母和螺栓沒有恰當(dāng)進(jìn)行緊固的情況。單獨(dú)的螺帽在裝配時(shí)可能沒有緊固或在運(yùn)輸和安裝過程中出現(xiàn)松動(dòng)。所有外部螺帽在運(yùn)輸和安裝時(shí)應(yīng)解開。生產(chǎn)商每次就裝配提出建議時(shí)，所有外部螺帽應(yīng)緊固并在隨后進(jìn)行定期緊固(對(duì)于大多數(shù)機(jī)械，建議每年緊固一次)。內(nèi)部原因引起的振動(dòng)為了便于進(jìn)行論述，本文中"內(nèi)部原因"指機(jī)器內(nèi)部的原因，不論是在泵的外部或內(nèi)部。江蘇地區(qū)訂制離心泵——靖江市瑞鑫泵業(yè)有限公司。南京工業(yè)離心泵參數(shù)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京工業(yè)離心泵參數(shù),離心泵" src="https://tyunfile.71360.com/WaterMark/UploadFile/jjsrxby/637261969522871094/6781059.png"></div><p> 振動(dòng)將加劇。如果缺點(diǎn)不是很嚴(yán)重，則調(diào)整基板和墊片可以進(jìn)行糾正。直聯(lián)泵在進(jìn)行維修之后常出現(xiàn)這種情況，這并非偶然現(xiàn)象。如果鑄鐵(優(yōu)先)或鋼沒有使用"底基層"，則使用所有螺紋埋于混凝土中的部件將電動(dòng)機(jī)直接與地面相貼，在頂上使用螺母以緊固泵。由于這種裝置無法使用"后拉式結(jié)構(gòu)"，通常需切削所有螺紋以便于移除泵的旋轉(zhuǎn)部件和電動(dòng)機(jī)。這些螺紋很少更換，泵也不會(huì)直接與地面相接。振動(dòng)和過早失效可能發(fā)生。c.系統(tǒng)共振——由于每一個(gè)系統(tǒng)都存在一些共振頻率，因此泵內(nèi)的"可接受振動(dòng)"將有可能導(dǎo)致系統(tǒng)頻率振動(dòng)，放大共振頻率，從而加劇泵內(nèi)的振動(dòng)。這可能導(dǎo)致部件出現(xiàn)故障。與臨界轉(zhuǎn)速相似，需調(diào)整管道以解決這一問題。結(jié)論過量振動(dòng)易于發(fā)現(xiàn)且能引起重大故障發(fā)生。確定振動(dòng)產(chǎn)生的原因尤為重要，以便進(jìn)行有效糾正。由于大多數(shù)振動(dòng)產(chǎn)生的原因?yàn)橥獠吭蚧蛐?zhǔn)問題，因此應(yīng)著重關(guān)注確定較長(zhǎng)使用期限和較低壽命周期成本的調(diào)查。上海耐酸離心泵功率江蘇口碑好離心泵——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="南京工業(yè)離心泵參數(shù),離心泵" src="https://tyunfile.71360.com/WaterMark/UploadFile/jjsrxby/637261653946699218/2958278.png"></div><p> 將需要增加NPSH或排空現(xiàn)有系統(tǒng)內(nèi)的攜入空氣。c.腐蝕和沖蝕——雖然腐蝕和沖蝕問題極易被視為"內(nèi)部問題"，但是其根源在于為泵的抽送能力選擇材料時(shí)的不當(dāng)。腐蝕或沖蝕產(chǎn)生的損壞可能毀壞葉輪或頸環(huán)，導(dǎo)致機(jī)械的振動(dòng)超出限度。需分析泵的抽送能力才能解決這一問題。即使受沙礫沖蝕較厲害，仍需按照步驟更換材料以根除問題或延長(zhǎng)MTBF。d.葉輪的不平衡——按照ISO標(biāo)準(zhǔn)1940/1，葉輪應(yīng)該切割到大運(yùn)行速度時(shí)的恰當(dāng)直徑并實(shí)現(xiàn)動(dòng)態(tài)平衡()，該平衡級(jí)允許轉(zhuǎn)速為1800時(shí)每盎司泵輪重量產(chǎn)生(轉(zhuǎn)速為3600時(shí)為)。如果在現(xiàn)有泵上切割葉輪，按照標(biāo)準(zhǔn)平衡葉輪時(shí)出現(xiàn)初始故障或重新平衡失敗將導(dǎo)致振動(dòng)超出可接受的范圍。這一點(diǎn)在各種大、小機(jī)械上均很重要，因?yàn)橐呀⒌臉?biāo)準(zhǔn)考慮了機(jī)械的總質(zhì)量以及葉輪對(duì)振動(dòng)產(chǎn)生的影響。的解決方法是拆掉葉輪重新進(jìn)行平衡。e.電動(dòng)機(jī)轉(zhuǎn)動(dòng)元件的不平衡——這是一種少見的制造缺點(diǎn)。有關(guān)電動(dòng)機(jī)平衡測(cè)試要求請(qǐng)見美國(guó)電氣制造業(yè)協(xié)會(huì)(NEMA)的標(biāo)準(zhǔn)MG-12007第1節(jié)第7部分。通常情況下，被確定為電動(dòng)機(jī)轉(zhuǎn)子不平衡(通過斷開電動(dòng)機(jī)并由其自行運(yùn)轉(zhuǎn))的問題實(shí)際上是曲軸或軸承故障問題，該內(nèi)容已在本文其他部分進(jìn)行討論。電動(dòng)機(jī)旋轉(zhuǎn)部分的不平衡實(shí)際上在啟動(dòng)時(shí)。</p><p> 07運(yùn)行超負(fù)荷故障分析：介子黏度過大；排除管路堵塞。螺桿與泵套產(chǎn)生嚴(yán)重摩擦。解決方法：將介子適當(dāng)升溫；停泵，疏通排出管路；檢修或更換相關(guān)部件。計(jì)量泵和電動(dòng)往復(fù)泵的常見故障及解決方法01泵不排液或泵排液后中斷故障分析：電動(dòng)機(jī)不轉(zhuǎn)動(dòng)；吸入管堵塞或吸入閥門未開；吸入管路漏氣。吸入閥或排出閥損壞或密封不嚴(yán)；補(bǔ)油系統(tǒng)的油有雜質(zhì)，密封不嚴(yán)；電動(dòng)機(jī)轉(zhuǎn)速不足或不穩(wěn)；吸入液面太低。解決方法：檢查電源、線路及電動(dòng)機(jī)；檢查吸入管、過濾器，打開吸入閥；檢查吸入管路，封堵；維修吸入閥或排出閥，必要時(shí)更換；換干凈的油；檢查配電電制與電壓，穩(wěn)定電動(dòng)機(jī)轉(zhuǎn)速；調(diào)整吸入液面。02流量不足故障分析：吸入管太長(zhǎng)，彎路太多；隔膜腔內(nèi)殘存空氣；補(bǔ)液閥或隔膜腔等處漏氣漏液；安全法、補(bǔ)償閥動(dòng)作不正常；柱塞填料處泄漏嚴(yán)重。解決方法：加粗吸入管，減少?gòu)澛?；重新灌液，排除氣體；找出泄漏部件并檢修封嚴(yán)；重新調(diào)節(jié)安全閥和補(bǔ)償閥；調(diào)節(jié)填料壓蓋或更換新填料函。03泵壓力不夠故障分析：吸入閥、排出閥損壞；隔膜處或排出管接頭密封不嚴(yán)。解決方法：更換新閥；找出泄漏部件，檢修、封嚴(yán)。04計(jì)量精度降低故障分析：柱塞零點(diǎn)漂移。解決方法：重新調(diào)整柱塞零點(diǎn)。江蘇地區(qū)正規(guī)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="南京工業(yè)離心泵參數(shù),離心泵" src="https://tyunfile.71360.com/UploadFile/jjsrxby/637261023558720704/9336477.png"></div><p> 實(shí)際使用效果表明，密封元件失效**多的部位是動(dòng)，靜環(huán)的端面，離心泵機(jī)封動(dòng)，靜環(huán)端面出現(xiàn)龜裂是常見的失效現(xiàn)象，主要原因有： </p> <p> 安裝時(shí)密封面間隙過大，沖洗液來不及帶走摩擦副產(chǎn)生的熱量；沖洗液從密封面間隙中漏走，造成端面過熱而損壞。 </p> <p> 液體介質(zhì)汽化膨脹，使兩端面受汽化膨脹力而分開，當(dāng)兩密封面用力貼合時(shí)，破壞潤(rùn)滑膜從而造成端面表面過熱。 </p> <p> 液體介質(zhì)潤(rùn)滑性較差，加之操作壓力過載，兩密封面追蹤轉(zhuǎn)動(dòng)不同步。例如高轉(zhuǎn)速泵轉(zhuǎn)速為20445r/min，密封面中心直徑為7cm，泵運(yùn)轉(zhuǎn)后其線速度高達(dá)75 m/s，當(dāng)有一個(gè)密封面滯后不能追蹤旋轉(zhuǎn)，瞬時(shí)高溫造成密封面損壞。 </p> <p> 密封沖洗液孔板或過濾網(wǎng)堵塞，造成水量不足，使機(jī)封失效。 </p> <p> <br /> 江蘇地區(qū)口碑好離心泵生產(chǎn)廠家——靖江市瑞鑫泵業(yè)有限公司。上海耐酸離心泵功率</p><p style="text-indent:25px">離心泵廠家——靖江市瑞鑫泵業(yè)有限公司供應(yīng)。南京工業(yè)離心泵參數(shù)</p><p> 離心泵的出口止回閥作用與選型離心泵出口的止回閥的作用就是防止出口管路中的液體倒流形成水錘造成泵內(nèi)葉輪損傷。止回閥的安裝與泵的多少無關(guān),止回閥主要為了在泵停止運(yùn)行后,防止液體回流,使泵倒轉(zhuǎn),從而造成損壞泵的事件,并且為了防止液體倒流對(duì)其他儲(chǔ)罐等的損壞(從高位罐倒流會(huì)造成罐補(bǔ)抽壞).因此好加上止回閥.如果能保證停泵前先關(guān)閉出口閥,且出口閥不內(nèi)漏或損壞.也可以不安止回閥.1.泵出口止回閥門"止回閥的選型一般的泵站工程情況，對(duì)于泵出口止回閥的選擇，應(yīng)遵循以下原則；對(duì)泵出口管路口徑較小的管路，即DN≤50mm時(shí)，應(yīng)選用升降式止回閥。對(duì)泵出口管路口徑DN＞50mm的管路，應(yīng)選用旋啟式止回閥旋啟式止回閥可以水平或垂直安裝。旋啟式止回閥閥瓣繞轉(zhuǎn)軸作旋轉(zhuǎn)運(yùn)動(dòng)，其流體阻力一般小于升降式止回閥，它適用于較大口徑的場(chǎng)合，安裝位置不受限制，通常安裝于水平管路，它適用與較大口徑的場(chǎng)合。根據(jù)閥瓣的數(shù)目可分為單瓣旋啟式、雙瓣旋啟式及多瓣旋啟式三種。單瓣旋啟式止回閥一般使用與中等口徑的場(chǎng)合。大口徑管路選用單瓣旋啟式止回閥時(shí)，為減小水錘壓力，好采用能減小水錘壓力的緩閉止回閥。雙瓣旋啟式止回閥適用與大中口徑管路。對(duì)夾雙瓣旋啟式止回閥結(jié)構(gòu)小、重量輕。南京工業(yè)離心泵參數(shù)</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、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)部門批準(zhǔn)后方可開展經(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型無密封自控自吸泵。靖江瑞鑫泵業(yè)致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶產(chǎn)品上的貼心，為用戶帶來良好體驗(yàn)。靖江瑞鑫泵業(yè)始終關(guān)注機(jī)械及行業(yè)設(shè)備市場(chǎng)，以敏銳的市場(chǎng)洞察力，實(shí)現(xiàn)與客戶的成長(zhǎng)共贏。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2968860.html</p></div></div></div></div></div><div id="b2a87nu" class="page-right twoColRt"><div id="lfrjvce" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="jdpmt7x" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img 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