D450-60*10多级泵 离心泵 清水泵;D450-60*

D450-60*10多级泵 离心泵 清水泵;D450-60*10-----型号:D450-60*10/250D60*10 流量:360-450-540立方米/小时(m?/E);扬

程:615.3-583.8-547.5米(m);电机功率:1120KW;转速:1480转/分
钟(r/min);电机型号:Y5002-4效率:69.8-75-78%;轴功率:864.9KW;必

需汽蚀余量:3-4.6-5.6米(m)D450-60*10离心清水泵;D450-60*10D450-60*10;D450-60*10;D450-60*10--------型号:D450-60*10(泵带单底);进口口径:250毫米(mm);出口口径:250毫米(mm);泵带底座体

积:5.53277835立方米(m?);泵带单底重量:3750公斤(Kg);泵带电机总长:5331毫米(mm);宽(含泵

进口突出部分):925毫米(mm);高:1110毫米(mm).D450-60*10离心清水泵;D450-60*10D450-60*10;D450-60*10;D450-60*10质保承诺：本厂产品全部按行业标准生厂和检验。凡本厂产品在正常使用的情况下,整机的保质期为出厂后12个月内,易损件的保质期为出厂后6个月内,机械密封的保质期为出厂后3个月内。D450-60*10离心清水泵;D450-60*10D450-60*10;D450-60*10;D450-60*10常见的渗漏原因及解决办法：      由于压力产生的渗漏
　　(1) 高压和压力波造成的机械密封渗漏

　　由于弹簧比压力及总比压设计过大和密封腔内压力超过3MPa 时，会使密封端面比压过大，液膜难以形成，密封端面磨损严重，发热量增多，造成密封面热变形。
　　对策：在装配机封时，弹簧压缩量一定要按规定进行，不允许有过大或过小的现象，高压条件下的机械密封应采取措施。为使端面受力合理，尽量减小变形，可采用硬质合金、陶瓷等耐压强度高的材料，并加强冷却的润滑措施，选用可*的传动方式，如键、销等。
　　(2) 真空状态运行造成的机械密封渗漏

　　泵在起动、停机过程中，由于泵进口堵塞，抽送介质中含有气体等原因，有可能使密封腔出现负压，密封腔内若是负压，会引起密封端面干摩擦，内装式机械密封会产生漏气(水) 现象，真空密封与正压密封的不同点在于密封对象的方向性差异，而且机械密封也有其某一方向的适应性。
　　对策：采用双端面机械密封，这样有助于改善润滑条件，提高密封性能。

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