Vortex pump is for pumping water or similar physical and chemical properties of liquid water by using liquid temperature does not exceed 60, commonly used in boiler water supply facilities, in shipbuilding, textile, chemical industry, metallurgy, machinery manufacturing, aquaculture, fixed fire protection, heat exchange unit, agricultural and other departments are far from Cheng Penguan wide application.
The small volume and light weight of the vortex pump have great superiority in the ship's equipment.
Self priming is achieved by self priming or by means of a simple device.
With a steep descending head characteristic curve, it is insensitive to pressure fluctuations in the system.
Some vortex pumps can be used for the mixture of steam and liquid. High temperature has important significance for the liquid pumping gas containing volatile liquid and vapor pressure is very high.
Vortex pump structure is simple, casting and processing technology is easy to achieve, some of the vortex pump parts can also use non-metallic materials, such as plastic, nylon molded impeller and so on.
Disadvantages and uses of vortex pump
1, the efficiency is low, the maximum is not more than 55%, the efficiency of most of the vortex pumps is at 20-40%, which prevents it from developing to the high power direction.
The cavitation performance of the 2 vortex pump is poor.
3 vortex pump can not be used for pumping viscous media. Because with the increase of liquid viscosity, the pump lift and efficiency will be drastically reduced, the viscosity of the medium is limited to 114 centistokes.
The requirements of the radial clearance and axial clearance between the impeller of the 4 vortex pump and the pump body are more difficult for the processing and assembly process.
5 pumping medium is only limited to the pure liquid. When a solid particle is contained in a liquid, the performance of the pump is reduced or the whirlpool pump can not work because of the increase of the axial and radial clearance caused by wear.
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