清水灌溉泵@青龙清水灌溉泵@清水灌溉泵12SH-28
Side can be started. Pump commissioning should meet the following requirements: The pump should be in the specified speed and operating range of operation, continuous commissioning time should not be less than 30min, the pump water supply should be normal, water temperature and water supply pressure should be in line with the requirements of the manufacturer; The temperature rise of the bearing should not be higher than 30 ℃, and the connection should be strict. 4 No leakage phenomenon, there should be no abnormal sound and vibration in operation, after the commissioning, should be released in the pump water, and then use water to rinse the pump clean. S series of open pumps can be basically supplied to factories, cities, power stations, water conservancy projects and so on can be used as drainage or feed pumps, but also for farmland irrigation. For the transport of water without solid particles or physical, chemical properties similar to water other liquids, the transmission of the medium temperature of 0℃~80℃, allowing the import pressure. In the water treatment industry, the S-series Open pump is an extremely important equipment. The Operation safety of the open pump in the S series directly affects the normal operation of the water treatment process.
S、SH单级双吸中开式离心泵产品特点1、密封系统:可供选用的机械密封、填料密封其冷却润滑均采用内循环;2、流量大、效率高:双吸叶轮,具有流量大、效率高等特点;3、可更换的轴套:轴套作为易损件,起到保护轴,提高泵的使用寿命;4、密封环:密封环作为易损件,起到提高泵的效率、延长泵的使用寿命的特点。S、SH单级双吸中开式离心泵产品用途
清水灌溉泵@青龙清水灌溉泵@清水灌溉泵12SH-28
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。
S、SH单级双吸中开式离心泵概述
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