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Centrifugal pumps are a sub-class of dynamic axisymmetric work-absorbing turbomachinery. Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational energy typically comes from an engine or electric motor. The fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller, flowing radially outward into a diffuser or volute chamber (casing), from where it exits.
Centrifugal pumps are a sub-class of dynamic axisymmetric work-absorbing turbomachinery. Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational energy typically comes from an engine or electric motor. The fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller, flowing radially outward into a diffuser or volute chamber (casing), from where it exits.
Common uses include water, sewage, petroleum and petrochemical pumping. The reverse function of the centrifugal pump is a water turbine converting potential energy of water pressure into mechanical rotational energy.
How it works:
Like most pumps, a centrifugal pump converts mechanical energy from a motor to energy of a moving fluid. A portion of the energy goes into kinetic energy of the fluid motion, and some into potential energy, represented by fluid pressure (hydraulic head) or by lifting the fluid, against gravity, to a higher altitude.
The transfer of energy from the mechanical rotation of the impeller to the motion and pressure of the fluid is usually described in terms of centrifugal force, especially in older sources written before the modern concept of centrifugal force as a fictitious force in a rotating reference frame was well articulated. The concept of centrifugal force is not actually required to describe the action of the centrifugal pump.
The outlet pressure is a reflection of the pressure that applies the centripetal force that curves the path of the water to move circularly inside the pump. On the other hand, the statement that the “outward force generated within the wheel is to be understood as being produced entirely by the medium of centrifugal force” is best understood in terms of centrifugal force as a fictional force in the frame of reference of the rotating impeller; the actual forces on the water are inward, or centripetal, since that is the direction of force needed to make the water move in circles. This force is supplied by a pressure gradient that is set up by the rotation, where the pressure at the outside, at the wall of the volute, can be taken as a reactive centrifugal force. This was typical of nineteenth and early twentieth century writings, mixing the concepts of centrifugal force in informal descriptions of effects, such as those in the centrifugal pump.
Applications: CLV series vertical centrifugal pump is our newly developed product driven by a marine motor. It is widely used for transporting fresh water, seawater, condensate, oils and saline water. The transported medium shall not contain…
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CWX Series marine self-priming vortex pump divided into the bracket and no bracket two. The pump is the two level structures of pump cover and the outer diaphragm: a centrifugal wheel — first stage; the outer…
CLZ Series marine vertical self-priming centrifugal pump, has the advantages of small volume, light weight, good self-priming performance, convenient installation and operation, etc.. Applicable to all kinds of ships for bilge pump, ballast pump, fire pump,…
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Trasnsfer seawater, fresh wate, the tempreture is not higher than 80°c, and it is applocable for cooling and sanitary engineering
CL Series marine vertical centrifugal pumps are used at cabin bottom to cool water and fight fire.It is able to carry sea water under 80 degrees. Fresh water and other nonerroding liquid. The pump rotates anticlockwise…
1.Transport pure water 2.Water supply and drainage in industries and cities 3.Boost water-feeding for tall building 4.Fire-fighting water supply boost 5.Irrigation
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This series of pumps for stainless steel centrifugal pump. The pump shaft and motor shaft for the same root, the so-called altogether shaft type. Applicable to ship water supply system, pressure boiler water supply, and the…
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