管道清水泵@房山管道清水泵@管道清水泵6寸口径

At present, the solution is to regularly replace lubricating oil, wear parts and regular cleaning of the hydraulic cavity. Strict mid-open pump operating procedures. Pump start-up and parking should be strictly in accordance with the requirements of the operation. At the start, 0 output pump, when the pump outlet has a certain pressure, the voltage regulator can be filled with nitrogen. Avoid the diaphragm debation caused by nitrogen filling, prevent the diaphragm rupture, improve the pump output, to proceed slowly, when stopping the pump, should also slowly reduce the output of the pump. Focus on checking lubricant oil level, machine pump sound, outlet pressure, nitrogen buffer tank pressure and so on. Regular replacement of the pump body diaphragm, nitrogen buffer tank diaphragm, in order to effectively prevent the simultaneous damage of two pumps caused by the occurrence of catalyst suspension. The mechanical seal is also called the End seal, which produces the appropriate compb force on the contact surface of the rotating dynamic ring and static ring by the pressure of the spring and the sealing medium, so that the two ends are tightly fitted. The end side maintains a very thin layer of oil film, the media through the resistance is very large, to prevent liquid leakage.

本系列泵是单级、双吸、水平中开式离心泵，适用于汲送清水和无腐蚀性的液体。介质温度80℃。轴承体通人冷却水后，可输送130℃以下的热水。改变密封环、轴套和叶轮的材质，可以输送含有泥沙的浑水。改变承压零件的材质，可以提高泵的进口压力.泵的轴封一般采用软填料密封，如有特殊要求，也可改装机械密封。从电机方向看泵，泵为逆时针旋转，按用户要求，也可改为顺时针旋转。jdhuiquan4.13

管道清水泵@房山管道清水泵@管道清水泵6寸口径

故效率总是小于1的。目前国内中开泵中多数型号的效率一般在70-80％左右，少数大流量型号的效率在90%左右。影响中开泵效率的主要原因在于泵内存在的能量损失，这些损失主要是机械损失，水力损失和容积损失。机械损失主要是叶轮外表面与液体的磨擦损失（即圆盘摩擦损失）以及离心泵轴承，轴封上的摩擦损失，水力损失主要是液体在泵内运动速度和方向的变化引起的冲击损失。中开泵效率是指泵的有效功率和轴功率的比值旋涡损失等，液体与泵内各流道壁面的磨擦损失以及液体运动的内部磨擦损失，容积损失主要是泵内高压液体向低压区泄露回流造成的损失，包括密封环泄漏损失，平衡机构泄漏损失和级间泄漏损失。通过不同可以使中开泵的效率和汽蚀性能得到很好的提升当然在进行效率和汽蚀性能改造的同时。

根据水泵行业规定，Sh型与S型两大系列中开泵并存，直至统一设计出新型泵代替这两个系列时为止。本产品主要用于工厂、矿山、城市、电站给水农用排涝灌溉、各种水利工程用泵和采暖空调系统等场合

[二]性能范围：
流量Q112m3/h-6460m3/h,扬程H9m-140m，允许进口压力≤0.3Mpa(用户在订货时须标明进口压力值)。