Centrifugal pump is a common fluid conveying equipment, which is widely used in industrial production and civil fields. It sucks in the liquid by the centrifugal force of the rotating impeller and transports it through the pipeline. Centrifugal pump has the advantages of simple structure, small size, stable operation and high efficiency, and is widely used in different projects.

The main components of centrifugal pump include pump body, impeller, bearing and sealing device. The pump body is the main bearing component of the centrifugal pump, which is generally welded by cast iron or steel plate, and has good rigidity and pressure resistance. The impeller is the core part of the centrifugal pump, which generates centrifugal force through rotation to suck in and deliver the liquid. The impeller is usually made of cast iron, stainless steel or copper, which has high wear resistance and corrosion resistance. Bearings and sealing devices play an important role in the normal operation of centrifugal pumps. They can reduce leakage and friction and ensure the stability and life of the pump.

The working principle of the centrifugal pump is to use the rotation of the impeller to generate centrifugal force, so that the liquid generates a pressure difference, so as to realize the transportation of the liquid. When the pump is started, the motor drive shaft rotates the impeller, and the liquid is sucked into the pump body and pushed to the outlet by the centrifugal force of the impeller. The output flow and head of the centrifugal pump depend on the diameter of the impeller, the speed and the inlet and outlet position of the impeller. Under normal circumstances, the output flow of a centrifugal pump decreases with the increase of the head, which is the so-called flow characteristic curve.

Centrifugal pumps are widely used in industrial production. It is often used to transport water, oil, chemicals, sewage and other different kinds of liquids. In water supply projects, centrifugal pumps are used to provide domestic water, industrial water and fire fighting water. In the petrochemical industry, centrifugal pumps are used to transport crude oil, refined oil products and chemical solutions. In sewage treatment projects, centrifugal pumps are used to discharge and transport sewage, wastewater and sludge. In addition, centrifugal pumps are also widely used in agricultural irrigation, construction engineering, ships and marine engineering and other fields.

In short, as an important fluid conveying equipment, centrifugal pump has the advantages of simple structure, stable operation and high efficiency, and is widely used in various fields. With the continuous development of science and technology, the performance and efficiency of centrifugal pumps will continue to improve, providing reliable support for the smooth progress of various projects.