离心泵与其他类型泵相比具有更多的优点,因而在船舶上获得了广泛的应用,如油箱、容器和舱柜的抽空等。在输送液体的过程中,通常泵的吸入侧的静扬程会有所降低。正因如此,储液舱柜中的空气(气体介质)才有可能通过吸入口进入管路,并由于叶轮入口处绝对压力的降低而在离心泵的过流通道内产生气蚀。有很多方法可以用来防止空气进入吸入管路,但是目前只能依据现有的和允许的汽蚀余量值,靠降低流量来避免汽蚀。由于苏联造船界目前还没有能够准确而有效地评价汽蚀余量值的技术设备,只能采用人工调节,因而其精确度只能取决于操作者的技能。这样一来,常 Centrifugal pumps have many advantages over other types of pumps and are therefore widely used on ships such as tanks, tanks and tanks. During delivery of the liquid, the static head of the suction side of the pump is usually reduced. As a result, it is possible for the air (gaseous medium) in the tank to enter the pipeline through the suction port and cause cavitation in the overcurrent channel of the centrifugal pump due to the reduction of absolute pressure at the impeller entrance. There are many ways to prevent air from entering the suction line, but cavitation can now only be avoided by reducing the flow rate based on current and permissible values ​​of NPS. As the Soviet shipbuilding industry currently does not have the technical equipment to accurately and effectively evaluate the value of the NPS, it can only be manually adjusted, so its accuracy can only depend on the skill of the operator. As a result, often