渣浆泵试运行包含哪几方面
1.启动
1)开启轴封水,将压力调整到规定值;
2)将进口阀门完全开启;泥沙机渣浆泵
3)开启注水阀门向泵内注水(倒灌泵不需注水);
4)将出口阀门开度调整到1/4;泥沙机渣浆泵
5)启动机组。待转速正常后,开启出口压力表,若压力正常稳定,即可缓慢开启出口阀门,直到完全开启或满足工况要求为止。泥沙机渣浆泵
注意:在全开出口阀门的状态下启动泵会造成电机超载;采用关小进口阀门控制流量会造成泵汽蚀,应该避免。
2.运转
正常运转后,应观察以下几项内容:
泵的流量、扬程(出、入口压力)是否稳定并符合工艺要求;
电流是否稳定;
机组是否有异常声响,噪声是否过大;
轴封泄漏是否正常(滴渗);
机械密封规格尺寸≤50mm,
泄漏量≤3ml/h。
机械密封规格尺寸>50mm,泄漏量≤5ml/h。
轴承温升35。C,zui高温度不得大于75°;
振动值应保持在规定范围之内。
3.停泵
①停泵前应抽送30分钟清水,以清洗泵及管内的介质。
②关闭泵出口阀门。
③停机,并关闭相应轴封水及冷却水。
④关闭泵进口阀门。
注意:juebu允许在出口阀门全开的状态下停
通常在工厂给出的特性曲线上还标明推荐使用的性能区段,AH150-80耐磨抽沙泵zjw工业进料泵,称为该泵的工作范围。泵的实际工作点由泵的曲线与泵的装置特性曲线的交点来确定。选择和使用泵泥沙机渣浆泵,应使泵的工作点落在工作范围内,以保证运转经济性和安全。同一台泵输送粘度不同的液体时,其特性曲线也会改变。通常,泵制造厂所给的特性曲线大多是指输送清洁冷水时的特性曲线。
Generally, the characteristiccurve given by the factory also indicates the recommendedperformance section, which is called the working range of the pump.The actual working point of the pump is determined by theintersection of the curve of the pump and the device characteristiccurve of the pump. The selection and use of
the parameter values respectively, and draw a curve to expressthem. These curves are called the characteristic curve of the pump.Each pump has a specific characteristic curve, which is provided bythe pump manufact泥沙机渣浆泵urer. Generally, the characteristic curvegiven by the factory also indicates the recommended performancesection, which is called the working range of the pump. The actualworking point of the pump is determined by the intersection of thecurve of the pump and the device characteristic curve of the pump.When selectin
g clean cold water. For the powerpump, with the increase of liquid viscosity, the head andefficiency decrease, and the shaft power increases, so泥沙机渣浆泵in in
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