The vanes function the same as the volute and are mostly used in segmented multistage pumps. In a multistage centrifugal pump, the vanes are loaded into the middle section with the partition.
The guide vanes can be divided into radial guide vanes and flow passage guide vanes according to their structural forms. The positive guide vanes and the negative guide vanes of the flow guide vanes are cast together, and there is a continuous flow passage in the middle, so that the liquid flows in the continuous flow passage, and it is difficult to form dead angles and sudden diffusion, the speed changes are relatively uniform, and the hydraulic performance is better. But the structure is complicated.
Centrifugal pump is a piece of rotary equipment that converts kinetic energy into the pressure head of the liquid. External power from electric motor or diesel generator drives pump impeller. Fluid enters into the impeller, and by centrifugal force, it exits from the tip of the impeller.
The guide vanes provide a gradually increasing area of flow leading to decrease of kinetic energy and increase of pressure energy. A pump with such receiving guide vanes is called a turbine pump. The angles of the guide vanes at their receiving tips are such that the water enters the guides without shock.
Post time: 2021/5/27 14:49:57 Hits：164