Views: 3 Author: Site Editor Publish Time: 2018-11-01 Origin: Site
Definition: Terminology for slurry pump
If we want to know the application of a slurry pump well, we have to know some terminology first. Now let's learn them together,
Affinity Laws
A mathematical relationship between head, flow and power, which enables pump performance to be determined as the speed or impeller diameter is altered.
Capacity
The volume of liquid to be transported in a unit time.
Concentration by mass
The solids present in a two-phase mixture expressed as a percentage of the mass of the total mixture.
Concentration by volume
The solids present in a two-phase mixture expressed as a percentage of the volume of the total mixture.
Density
The mass of a fluid as expressed in its mass per unit volume (kg/m3).
Efficiency
The ratio of energy delivered by the pump to the energy supplied to the pump shaft, expressed as a percentage.
Flow
Alternative terminology for capacity, quantity or volume to be pumped.
Fines
A fraction or portion of the mixture, which is represented by a small screen sizing.
Friction
The resistance to flow normally associated with pipes and fittings which is a function of the pipe diameter and the rate of charge of flow.
Velocity
Rate of flow in a given direction, e.g. m/sec.
Stuffing Box
A portion of the casing through which the shaft extends which holds packing material to prevent leakage.
System Head Curve
A curve showing the relationship between the total head required by the system to produce a given flow.
Net positive suction head. The total suction head in absolute units at the impeller centerline less the absolute vapour pressure of the liquid.
Packing
A lubricated fiber type material used to provide a seal around the portion of the shaft in the stuffing box.
