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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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>江蘇管道離心泵水泵,離心泵</p><p><span>***更新：</span>2020-12-20 11:05:47</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="3hppnsk" 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="vjkbqgq" class="page-proshow02"><p class="title">詳細說明</p><div id="slmxdny" class="box"><p><p> 已知吸入管路的全部阻力為，當?shù)卮髿鈮簽椤?04Pa，液體在吸入管路中的動壓頭可忽略。試計算：1輸送20℃清水時離心泵的安裝。2改為輸送80℃水時離心泵的安裝高度。解：1輸送20℃清水時泵的安裝高度。已知：Hs=Hf0-1=u12/2g≈0當?shù)卮髿鈮簽椤?04Pa，與泵出廠時的實驗條件基本相符，所以泵的安裝高度為Hg=m。2輸送80℃水時泵的安裝高度輸送80℃水時，不能直接采用泵樣本中的Hs值計算安裝高度，需按下式對Hs時行換算，即Hs1=Hs+Ha－－Hυ－已知Ha=×104Pa≈10mH2O，由附錄查得80℃水的飽和蒸汽壓為。Hv=×103Pa=mH2OHs1=－－將Hs1值代入式中求得安裝高度Hg=Hs1－Hf0-1=－－Hg為負值，表示泵應安裝在水池液面以下，至少比液面低單級雙吸離心泵單級雙吸離心泵為新型節(jié)能水泵，同等用能條件下，其運行效率可高出原水泵近20%1.結構緊湊外形美觀，穩(wěn)定性好，便于安裝。2.運行平穩(wěn)優(yōu)化設計的雙吸葉輪使軸向力減小到zui低限度，且有優(yōu)異水力性能的葉型，并經(jīng)精密鑄造，泵殼內表面及葉輪表面極其光華具有的抗汽蝕性能和率。3.軸承選用SKF及NSK軸承保證運行平穩(wěn)，噪音低，使用壽命長。4.軸封選用BURGMANN機械密封或填料密封，江蘇管道離心泵水泵。能保證8000小時運行無泄漏，江蘇管道離心泵水泵，江蘇管道離心泵水泵。5.安裝形式裝配時不需調整。江蘇地區(qū)定做離心泵——靖江市瑞鑫泵業(yè)有限公司。江蘇管道離心泵水泵</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇管道離心泵水泵,離心泵" src="https://tyunfile.71360.com/WaterMark/UploadFile/jjsrxby/637261969178349610/4186371.png"></div><p> 或啟動過后不久)將非常明顯。如果需質量保證，應咨詢電動機生產(chǎn)商或電動機維修店，如與美國電氣設備維修協(xié)會(EASA)合作的店。f.軟底腳——安裝支座(通常在電動機上，但也在無整體支座的泵上)不在同一平面內時會出現(xiàn)這一問題，是出現(xiàn)相對頻繁的導致振動的問題。由于支座在下方固定，框架扭轉時，振動產(chǎn)生。這可能且確實已經(jīng)在鑄型電動機上發(fā)生且在初期很難確定，因為共振將在整個機械以及管道內(通常)傳送。軟底腳通常出現(xiàn)在啟動時或維護后?？紤]到其頻率，除非其他振動引起的問題可以很容易地確定，建議在故障排查程序的早期檢查軟底腳。檢查安裝可使用度標指示的方法。另一種常用的簡易方法則是輕輕解開壓緊螺栓(一次解一個)并檢查振動是否減少或消除。如果發(fā)現(xiàn)振動或螺栓解開過當，加墊片并重新校準就可以糾正。如果螺栓為解開狀態(tài)，則應進行標記以防日后忘記對其進行緊固。g.不平衡聯(lián)軸器——不能與未對準的情況混淆，聯(lián)軸器本身極少出現(xiàn)不平衡的情況。實際上在四極速度時絕不會出現(xiàn)不平衡，在兩極速度時出現(xiàn)的頻率也不高。當排除所有引起振動的原因后應適當進行不平衡問題的調查。雖然重新平衡聯(lián)軸器有可能實現(xiàn)，但整套更換通常將更經(jīng)濟實惠。江蘇管道離心泵水泵離心泵銷售廠家就找靖江市瑞鑫泵業(yè)有限公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇管道離心泵水泵,離心泵" src="https://tyunfile.71360.com/WaterMark/UploadFile/jjsrxby/637261969163437500/4474754.png"></div><p> 然后從葉片的端部被甩出進入泵殼內的蝸室或擴散管（或導輪）。當液體流到擴散管時，由于液流的斷面積漸漸擴大，流速減慢，將一部分動能轉化為靜能頭，使壓力上升，從排出管壓出。與此同時，在葉輪中心由于液體被甩出產(chǎn)生了局部真空，因而吸液池內的液體在液面壓力作用下就從吸入管源源不斷地被吸入泵內。葉輪連續(xù)旋轉，將液體不斷地由吸液池送往高位槽或壓力容器。離心泵工作原理示意圖離心泵工作原理演示離心泵能輸送液體是依靠高速旋轉的葉輪使液體受到離心力的作用，故名為離心泵。圖1-15所示為離心泵裝置，離心泵進出管線上的管路附件，對泵的正常操作作用很大，底閥是一個止回閥，它的作用是保證啟動前往泵內灌的液體不會由吸入管流走。濾網(wǎng)則可防止吸液池內的雜物進入管道或泵殼造成堵塞。離心泵啟動時，若泵體和吸入管內沒有液體，它是沒有抽吸液體的能力的，因為它的吸人口和排出口是相通的，葉輪中無液體而只有空氣時，由于空氣的密度比液體的密度小得多，不論葉輪怎樣高速旋轉，葉輪進口都不能達到吸液所需要的真空度，即產(chǎn)生的離心力就很小，因而在葉輪中心區(qū)所形成的低壓不足以將吸液池（貯槽）內的液體吸人泵內，而不能吸液。</p><p> 工作點 </p> <p> 離心泵的特性曲線是泵本身固有的特性，它與外界使用情況無關。但是，一旦泵被安排在一定的管路系統(tǒng)中工作時，其實際工作情況就不僅與離心泵本身的特性有關，而且還取決于管路的工作特性。所以，要選好和用好離心泵，就還要同時考慮到管路的特性。 </p> <p> 在特定管路中輸送液體時，管路所需壓頭He隨著流量Qe的平方而變化。將此關系繪在坐標紙上即為相應管路特性曲線。 </p> <p> 若將離心泵的特性曲線與其所在管路特性曲線繪于同一坐標紙上，如上圖所示，此兩線交點M稱為泵的工作點。選泵時，要求工作點所對應的流量和壓頭既能滿足管路系統(tǒng)的要求，又正好是離心泵所提供的，即Q = Qe，H = He。離心泵廠家，歡迎您的來電——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="江蘇管道離心泵水泵,離心泵" src="https://tyunfile.71360.com/UploadFile/jjsrxby/637261023311718750/3083681.png"></div><p> 將需要增加NPSH或排空現(xiàn)有系統(tǒng)內的攜入空氣。c.腐蝕和沖蝕——雖然腐蝕和沖蝕問題極易被視為"內部問題"，但是其根源在于為泵的抽送能力選擇材料時的不當。腐蝕或沖蝕產(chǎn)生的損壞可能毀壞葉輪或頸環(huán)，導致機械的振動超出限度。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MTBF。d.葉輪的不平衡——按照ISO標準1940/1，葉輪應該切割到大運行速度時的恰當直徑并實現(xiàn)動態(tài)平衡()，該平衡級允許轉速為1800時每盎司泵輪重量產(chǎn)生(轉速為3600時為)。如果在現(xiàn)有泵上切割葉輪，按照標準平衡葉輪時出現(xiàn)初始故障或重新平衡失敗將導致振動超出可接受的范圍。這一點在各種大、小機械上均很重要，因為已建立的標準考慮了機械的總質量以及葉輪對振動產(chǎn)生的影響。的解決方法是拆掉葉輪重新進行平衡。e.電動機轉動元件的不平衡——這是一種少見的制造缺點。有關電動機平衡測試要求請見美國電氣制造業(yè)協(xié)會(NEMA)的標準MG-12007第1節(jié)第7部分。通常情況下，被確定為電動機轉子不平衡(通過斷開電動機并由其自行運轉)的問題實際上是曲軸或軸承故障問題，該內容已在本文其他部分進行討論。電動機旋轉部分的不平衡實際上在啟動時。靖江市瑞鑫泵業(yè)有限公司歡迎您來電咨詢。南京耐酸離心泵功率</p><p style="text-indent:25px">江蘇地區(qū)銷售離心泵——靖江市瑞鑫泵業(yè)有限公司。江蘇管道離心泵水泵</p><p> 二、安裝高度Hg計算允許吸上真空高度Hs是指泵入口處壓力p1可允許達到的zui大真空度，而實際的允許吸上真空高度Hs值并不是根據(jù)式計算的值，而是由泵制造廠家實驗測定的值，此值附于泵樣本中供用戶查用。位應注意的是泵樣本中給出的Hs值是用清水為工作介質，操作條件為20℃及及壓力為×105Pa時的值，當操作條件及工作介質不同時，需進行換算。1、輸送清水，但操作條件與實驗條件不同，可依下式換算Hs1=Hs+Ha－－Hυ－2輸送其它液體當被輸送液體及反派人物條件均與實驗條件不同時，需進行兩步換算：*步依上式將由泵樣本中查出的Hs1；第二步依下式將Hs1換算成H?s2、汽蝕余量Δh對于油泵型號，計算安裝高度時用汽蝕余量Δh來計算，即泵允許吸液體的真空度，亦即泵允許的安裝高度，單位用米。用汽蝕余量Δh由油泵樣本中查取，其值也用20℃清水測定。若輸送其它液體，亦需進行校正，詳查有關書籍。吸程=標準大氣壓（）-汽蝕余量-安全量（）標準大氣壓能壓管路真空高度。例如：某泵必需汽蝕余量為，求吸程Δh？解：Δh=從安全角度考慮，泵的實際安裝高度值應小于計算值。當計算之Hg為負值時，說明泵的吸入口位置應在貯槽液面之下。例2-3某離心泵從樣本上查得允許吸上真空高度Hs=。江蘇管道離心泵水泵</p><p style="text-indent:25px">靖江市瑞鑫泵業(yè)有限公司是一家靖江市瑞鑫泵業(yè)有限公司主要是一家經(jīng)營泵、閥門、耐熱耐磨鋼制品、電力機械、冶金機械、化工機械、礦山機械、制藥**設備、機械零部件制造、加工、銷售。的一家公司。（依法須經(jīng)批準的項目，經(jīng)相關部門批準后方可開展經(jīng)營活動）的公司，致力于發(fā)展為創(chuàng)新務實、誠實可信的企業(yè)。靖江瑞鑫泵業(yè)擁有一支經(jīng)驗豐富、技術創(chuàng)新的專業(yè)研發(fā)團隊，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)始終以本分踏實的精神和必勝的信念，影響并帶動團隊取得成功。靖江瑞鑫泵業(yè)始終關注機械及行業(yè)設備市場，以敏銳的市場洞察力，實現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: 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