1.Impeller peripheral installation guide, so that the liquid in the pump has high energy conversion efficiency. Guide is located in the periphery of the impeller with fixed blade ring. The bending direction of the bending direction of these blades and impeller blade on the contrary, the bending angle coincides with the flowing direction of the liquid from the impeller to guide the liquid in the pump shell channel smoothly change the direction of the minimum energy loss, dynamic pressure can be converted to high pressure energy efficiency.
2.Back on the balance hole to eliminate the axial thrust. The liquid pressure left around the impeller has been high, some will seep into the front and rear rear impeller, impeller entrance for low pressure liquid, resulting in the impeller axial thrust to the side of the pump entrance. This is easy to cause the impeller and pump shell contact wear, severe vibration can also be produced. The balance hole causes a part of the high pressure liquid to leak into the low pressure area, and the pressure difference between the front and the back of the impeller is reduced. But it will also lead to lower pump efficiency.
3. The seal device to ensure the normal and efficient operation of centrifugal pump. Centrifugal pump in the work is the pump shaft rotation and shell does not move, during which the ring gap if not to seal or seal is not good, then the outside air will penetrate the impeller center of low pressure area, so that the pump flow rate, efficiency decreased. Serious when the flow is zero - gas tie. Generally, mechanical seal or packing seal can be used to realize the seal between the shaft and the casing.
Centrifugal is the manifestation of the inertia of the object. For example, the water droplets on the umbrella, when the umbrella slowly rotating, water droplets will follow the umbrella rotation, which is due to the friction between the umbrella and water droplets as a result of the force to the water droplets. But if the umbrella turns to speed, the friction is not enough to make the water drop in the circle, then the water drop will move away from the umbrella. Like a piece of rope pulling the stones to do a circular motion, if the speed is too fast, the rope will be broken, the stones will fly out. This is the so-called centrifugal pump is based on the principle of design. High speed rotation of the impeller blades to drive water rotation, the water thrown out, so as to achieve the purpose of conveying.
