中开双吸泵@石景山中开双吸泵@中开双吸泵300S32

In order to achieve the purpose of sealing, while the dynamic ring and static ring has a lubrication effect. The medium-open pump is regularly inspected during operation. The characteristics of the use of mechanical seals in medium-open pumps 1, the main advantage of the mechanical seal of the medium open pump is that the seal is reliable in a long life cycle, the leakage is very few, the effect is long, generally can use about 5 years, the maintenance cycle is long. However, the mechanical seal structure is complex, the manufacturing and installation precision is high, the lattice is high, the technical request to the maintenance personnel is high. Therefore, it is very important to ensure the reliable operation of mechanical seals and extend the service life of mechanical seals. Of course, the price sealed with seasoning is cheap, the technical requirements are relatively low. The problem that the mechanical seal of medium open pump is easy to occur in the process of use, the main problem that the mechanical seal is easy to occur is the leakage amount is very poor and the temperature is too high. Touch the mechanical seal cover with your hand, and if you can't stay on it, it means the temperature is too high. Leakage per side should not exceed 60 drops of/min, if linear flow, it indicates that the amount of leakage is too large, can determine whether to observe the operation;

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

中开双吸泵@石景山中开双吸泵@中开双吸泵300S32

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，不可忽略对中开泵可靠性方面的要求，总之通过我们的努力要获得一款效率高汽蚀性能好，运行可靠稳定的好泵。中开泵的首要零件有：泵体，泵盖，叶轮，双吸密封环，轴套，轴承等。除轴的资料为优质碳素钢外，其馀多为铸铁制成。泵体与泵盖构成叶轮的作业室。

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)。