1.窜水的原因 经理论分析与实际试验证明,水泵叶轮背面与泵壳的间隙太大就会窜水。 一般叶轮的正面有六个主叶片,背面有六个背叶片,背叶片的作用就是防止窜水。被主叶片甩到外圆上的水,绕过叶轮外国与壳体之间的间隙跑到叶轮背面,又被背叶片向外甩,以防止水的上窜。但如果背面 1. The reason of channeling water The theoretical analysis and practical tests show that the back of the pump impeller and the pump casing is too large will channeling water. The general impeller has six main leaves on the front, six back leaves on the back, the back leaves the role is to prevent channeling water. Was the main leaves thrown to the water on the outer circle, bypassing the gap between the impeller foreign and shell ran to the back of the impeller, and was thrown back leaves out to prevent the water channeling. But if the back