What Is The Head Of The Slurry Pump? How To Calculate It?

According to the design principle of the slurry pump, the slurry pump is a type of centrifugal pump, so we can refer to the concept and calculation of the centrifugal pump head.Definition of slurry pump head The head of a centrifugal pump, also known as the pressure head of a pump, refers to the height at which the water pump can raise water, and can be understood as the energy obtained by a unit weight of fluid through the pump.The head size of the pump depends on the pump structure (such as the size of the impeller diameter, the bending condition of the blade, etc., and the rotation speed).At present, accurate calculations of the pump pressure head cannot be made in theory. It is generally measured by experimental methods to obtain the performance curve of the pump, and then the slurry pump selection calculation is performed based on the performance curve of the pump.The head, flow rate and power of the water pump are important parameters for examining the performance of the water pump.Note: The lift of a centrifugal pump is different from the lifting height (lifting height). The lifting height of the pump refers to the vertical height where the pump sends liquid from a low place to a high place.Only when the pump's inlet and outlet containers are at 0.1MP, the inlet and outlet pipe diameters are the same and the pipeline resistance is negligible, will the pump's head be equal to the lifting height.How to calculate the head of the slurry pump?Answer: The energy obtained by liquid per unit weight through the pump is called the head.The head of the pump includes the suction range, which is approximately the pressure difference between the pump outlet and inlet.H\u003d(p2-p1)/\u0026rho;g+(c2^2-c1^2)/2g+z2-z1　　Where H\u0026mdash;\u0026mdash;Head, m;　　p1, p2\u0026mdash;\u0026mdash;Pressure of liquid at the inlet and outlet of the pump, Pa;　　　c1, c2\u0026mdash;\u0026mdash;Flow rate of fluid at the inlet and outlet of the pump, m/s;　　z1, z2\u0026mdash;\u0026mdash;Inlet and outlet height, m;　　\u0026rho;\u0026mdash;\u0026mdash;Liquid density, kg/m3;　g\u0026mdash;\u0026mdash;Graining acceleration, m/s2.The pressure of the pump is expressed in P, and the unit is Mpa (megapas), H\u003dP/\u0026rho;. If P is 1kg/cm2, then H\u003d(lkg/cm2)/(1000kg/m3)　　H\u003d(1kg/cm2)/(1000kg/m3)\u003d(10000kg/m2)/1000kg/m3\u003d10m1Mpa\u003d10kg/c m2,H\u003d(P2-P1)/\u0026rho; (P2\u003doutlet pressure P1\u003dinlet pressure)　　The head of the centrifugal pump is based on the center line of the impeller and is composed of two parts.The vertical height from the center line of the water pump impeller to the water source surface, that is, the height where the water pump can suck water, is called the water suction head, abbreviated as the suction head; the vertical height from the center line of the water pump impeller to the water outlet surface, is the height where the water pump can suck water, is called the pressurized water head, abbreviated as the pressure stroke.That is: water pump head \u003d water suction head + pressurized water head It should be pointed out that the head marked on the nameplate refers to the head that the water pump itself can generate, and it does not contain the loss of head caused by frictional resistance of the pipeline water flow.When choosing a water pump, be careful not to ignore it.Otherwise, you will not be able to pump water.Pump head \u003d net head + head loss. Purchase head refers to the height difference between the suction point of the water pump and the high control point, such as pumping water from a clean water tank and sending it to a high water tank.A clean head refers to the height difference between the suction port of the clean water pool and the water tank at a high place.