Detailed Explanation of 20 Different Pump Types(10)

                 Detailed Explanation of 20 Different Pump Types(10)

10、 Vortex pump

Performance characteristics:

Advantages:

The W-type single-stage direct connected vortex pump is used for suction and delivery of clean water or liquids with physical and chemical properties similar to water. The liquid temperature does not exceed 60 degrees Celsius and is commonly used in boiler feedwater matching. It has a wide range of applications in shipbuilding, textile, chemical, metallurgical, machinery manufacturing, aquaculture, fixed fire pressure stabilization, heat exchanger groups, agricultural remote sprinkler irrigation and other departments. The characteristics of small volume and light weight of vortex pumps have great advantages in ship installations. Having self-priming ability or achieving self-priming with the help of simple devices. It has a steep head characteristic curve, therefore, it is insensitive to pressure fluctuations in the system. Some vortex pumps can achieve gas-liquid mixed flow. This is of great significance for pumping volatile liquids containing gases and high-temperature liquids with high vaporization pressure.

The structure of the vortex pump is simple, and the casting and processing technology are easy to implement. Some vortex pump parts can also use non-metallic materials, such as plastic, nylon molded impellers, etc.

Disadvantages: 1. Low efficiency, up to 55%, most vortex pumps have an efficiency of 20-40%, which hinders their development towards high power. The cavitation performance of the vortex pump is poor. Three vortex pumps cannot be used to pump media with high viscosity. As the viscosity of the liquid increases, the head and efficiency of the pump will sharply decrease, and the viscosity of the medium will be limited to within 114 cSt. The strict requirements for radial and axial clearances between the impeller and pump body of a vortex pump pose certain difficulties for machining and assembly processes. The medium being pumped is limited to pure liquids. When solid particles are present in the liquid, wear can cause an increase in axial and radial clearances, which can reduce the performance of the pump or cause the vortex pump to malfunction.