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巴特告訴你選擇齒輪泵的要點
來源：巴特計量泵、齒輪泵公司 發(fā)布時間：2013-12-09 13:43:19 瀏覽次數：次
鄭州巴特是一家銷售齒輪泵、計量泵、熔體泵為主的生產廠家。我公司齒輪泵分為單軸驅動齒輪泵、雙軸驅動齒輪泵、針對流動性差的熔體，我們獨有設計的外置潤滑泵很好的決絕這個問題。從加熱方式來說，我公司齒輪泵又分為油加熱齒輪泵，電加熱齒輪泵和傳統(tǒng)水加熱的齒輪泵。我們的主打泵為外嚙合齒輪泵。根據功能性，我們齒輪泵包括基本的一進一出齒輪泵和一進兩處，一進多出的齒輪泵，可以很好的解決產成品小而擠出機輸出量的大的問題。針對熔體問題高的情況，我們也有高溫高壓熔體齒輪泵。更多泵的詳情可咨詢在線QQ或撥打咨詢電話。
下邊，鄭州巴特為您介紹下齒輪泵的選擇要點，助您選擇理想合適的泵。
根據泵選型原則和選型基本條件，具體操作如下：
下邊，鄭州巴特為您介紹下齒輪泵的選擇要點，助您選擇理想合適的泵。
根據泵選型原則和選型基本條件，具體操作如下：
1、根據裝置的布置、地形條件、水位條件、運轉條件，確定選擇臥式、立式和其它型式（管道式、潛水式、液下式、無堵塞式、自吸式、齒輪式等）的泵。
2、根據液體介質性質，確定清水泵，熱水泵還是油泵、化工泵或耐腐蝕泵或雜質泵，或者采用無堵塞泵。
安裝在爆炸區(qū)域的泵，應根據爆炸區(qū)域等級，采用相應的防爆電動機。
3、根據流量大小，確定選單吸泵還是雙吸泵；根據揚程高低，選單級泵還是多級泵，高轉速泵還是低轉速泵（空調泵）、多級泵效率比單級泵低，如選單級泵和多級泵同樣都能用時，首先選用單級泵。
4、確定不銹鋼齒輪泵的具體型號
確定選用什么系列的泵后，就可按大流量，（在沒有大流量時，通?？扇≌Ａ髁康?.1倍作為大流量），取放大5%-10%余量后的揚程這兩個性能的主要參數，在型譜圖或者系列特性曲線上確定具體型號。操作如下：
利用泵特性曲線，在橫坐標上找到所需流量值，在縱坐標上找到所需揚程值，從兩值分別向上和向右引垂線或水平線，兩線交點正好落在特性曲線上，則該泵就是要選的泵，但是這種理想情況一般很少，通常會碰上下列兩種情況：
種：交點在特性曲線上方，這說明流量滿足要求，但揚程不夠，此時，若揚程相差不多，或相差5%左右，仍可選用，若揚程相差很多，則選揚程較大的泵?；蛟O法減小管路阻力損失。
第二種：交點在特性曲線下方，在泵特性曲線扇狀梯形范圍內，就初步定下此型號，然后根據揚程相差多少，來決定是否切割葉輪直徑，
若揚程相差很小，就不切割，若揚程相差很大，就按所需Q、H、，根據其ns和切割公式，切割葉輪直徑，若交點不落在扇狀梯形范圍內，應選揚程較小的泵。選泵時，有時須考慮生產工藝要求，選用不同形狀Q-H特性曲線。
5、泵型號確定后，對水泵或輸送介質的物理化學介質近似水的泵，需再到有關產品目錄或樣本上，根據該型號性能表或性能曲線進行校改，看正常工作點是否落在該泵優(yōu)先工作區(qū)？有效NPSH是否大于（NPSH）。也可反過來以NPSH校改幾何安裝高度？
6、對于輸送粘度大于20mm2/s的液體泵（或密度大于1000kg/m3），一定要把以水實驗泵特性曲線換算成該粘度（或者該密度下）的性能曲線，特別要對吸入性能和輸入功率進行認真計算或較核。
7、確定不銹鋼齒輪泵的臺數和備用率：
對正常運轉的泵，一般只用一臺，因為一臺大泵與并聯工作的兩臺小泵相當，（指揚程、流量相同），大泵效率高于小泵，故從節(jié)能角度講寧可選一臺大泵，而不用兩臺小泵，但遇有下列情況時，可考慮兩臺泵并聯合作：
流量很大，一臺泵達不到此流量。
對于需要有50%的備用率大型泵，可改兩臺較小的泵工作，兩臺備用（共三臺）
對某些大型泵，可選用70%流量要求的泵并聯操作，不用備用泵，在一臺泵檢修時，另一臺泵仍然承擔 生產上70%的輸送。
對需24小時連續(xù)不停運轉的泵，應備用三臺泵，一臺運轉，一臺備用，一臺維修。
8、一般情況下，客戶可提交其選泵的基本條件，由我司給予選型或者推薦更好的泵產品。如果設計院在設計裝置設備時，對泵的型號已經確定，按設計院要求配置。
9、 確定泵的臺數和備用率：
對正常運轉的泵，一般只用一臺，因為一臺大泵與并聯工作的兩臺小泵相當，（指揚程、流量相同），大泵效率高于小泵，故從節(jié)能角度講寧可選一臺大泵，而不用兩臺小泵，但遇有下列情況時，可考慮兩臺泵并聯合作：
流量很大，一臺不銹鋼齒輪泵達不到此流量。
對于需要有50%的備用率大型泵，可改兩臺較小的泵工作，兩臺備用（共三抬）
對某些大型泵，可選用70%流量要求的泵并聯操作，不用備用泵，在一臺泵檢修時，另一抬泵仍然承擔生產上70%的輸送。
對需24小時連續(xù)不停運轉的泵，應備用三臺泵，運轉，一臺備用，一臺維修。
鄭州巴特熔體泵有限公司
主營產品：計量泵、齒輪泵、熔體泵、高溫熔體泵、
熔體齒輪泵、熔體計量泵、化學泵、化工泵。
主要聯系方式：
國內銷售部：0371-67993077 67993177
國外銷售部：0371-61682066 61682088
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