离心式水泵之所以能抽水,是依靠水泵叶轮的高速旋转,在泵壳内形成低压区,水在大气压力的作用下被吸入水管内。因此离心水泵正常工作的关键条件之一是水泵和进水管不漏气,同时也不吸进空气。特别是用真空泵灌水的大泵,更要注意整个吸水管路不得有任何地方漏气。如果水泵中吸进空气,不仅减少出水量或者不出水,而且造成水泵运行时振动厉害和有杂音。 The reason why the centrifugal pump can pump water is to rely on the high speed rotation of the pump impeller to form a low pressure area in the pump casing. The water is sucked into the water pipe under the action of atmospheric pressure. Therefore, one of the key conditions for the normal operation of the centrifugal pump is that the water pump and the inlet pipe do not leak and do not suck in the air at the same time. Especially with a large pump vacuum pump, but also pay attention to the entire suction pipe may not have any leaks. If the air sucked in the pump, not only reduce the amount of water or no water, but also caused when the pump vibration vibration and noise.