立式多级凝结水泵.doc

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1、立式多级凝结水泵立式多级凝结泵概述：立式多级凝结水泵是我公司引进日本日立制作所设计、制造技术发展起来的系列产品，适用大型火力发电厂的凝结水泵，包括有100、125（145）、200、300、600、1000MW汽轮发电机组用的各种规格。也可用作抽送物理、化学性质类似于清水的其它液体的高吸程用泵，液体的温度不超过80℃。立式多级凝结泵参数范围：流量Q170~2400m3/s扬程H69~346m立式多级凝结泵型号说明：B640（Ⅰ、Ⅱ、Ⅲ）-5B－初段双吸螺旋形（第二段为单吸）导叶式离心冷凝泵640－泵导叶名义直径mm；I－泵轴向密封采用机械密封；Ⅱ－泵本体承受轴向推力

2、；Ⅲ－泵本体承受轴向推力、泵轴向密封采用机械密封；5－泵的级数立式多级凝结泵结构型式：凝结水泵为立式外简形，有三种结构形式；（1）A型-初段双吸导叶式多级离心冷凝泵（2）B型-初段双吸螺旋形导叶式多级离心冷凝泵（3）C型-初段双吸螺旋形斜流式多级冷凝泵泵机组安装形式为直联安装，轴向力由电动机承受，也可由泵本体承受。泵轴向密封为填料密封，也可以采用机械密封。立式多级凝结泵旋转方向：从电动机往泵看，泵逆时针方向旋转立式多级凝结泵主要零件材质：外简体：Q235－A/不锈钢叶轮：不锈钢。密封环：ZG2Cr13。轴：45钢壳体：QT450-10立式多级凝结泵成套范围：成套供应

3、泵，立式电动机。参数型号流量Q扬程H转速n轴功率Pa配带电动机效率η必须汽蚀余量泵口径泵重功率型号进口出口m3/hmr/minkwkw%mmmmmTA450-3A450-4A450-5A450-6A450-7A450-8180180180180180180971201611932262531480148014801480148014806681.7109.6131.4153.8172.275110132150185200YLST280-4YLST355-4YLST355-4YLST355-4YLST355-4YLST355-472727272727221.71.71

4、.71.71.73503503503503503502002002002002002003.53.63.73.83.94A460-2A460-3A460-4A460-5A460-6A460-7A460-820020020020020020020069104138173207242276148014801480148014801480148052.978.7104.4130.9156.6183208.87590132160185220250YLST280-4YLST280-4YLST355-4YLST355-4YLST355-4YLST355-4YLST355-471

5、7272727272722.12.11.81.81.81.81.83503503503503503503502002002002002002002003.94.054.24.354.54.654.8A480-2A480-3A480-4A480-5A480-6A480-72302302302302302307411114818522326014801480148014801480148064.495.2127158.7191.3223.175112160185220250YLST280-4YLST355-4YLST355-4YLST355-4YLST355-4YLST

6、355-47273737373732.22.21.91.91.91.93503503503503503502502502502502502504.264.444.624.804.985.16A490-2A490-3A490-4A490-5A490-6A490-72502502502502502507911915819823727714801480148014801480148074.7111147.4182.8221258.390132185220250300YLST280-4YLST355-4YLST355-4YLST355-4YLST355-4YLST355-4

7、7273737373732.42.42.12.12.12.14004004004004004002502502502502502504.755.35.65.96.2B440-3B440-4B440-5B440-6B440-7B440-8B440-9B440-10290290290290290290290290771041311581842112372641480148014801480148014801480148076102.7129.3156181.6208.3234260.690132150185220250280315YLST280-4YLST355-4