Centrifugal pump is a common type of power pump used for transporting liquids or gases. Here are some common types of centrifugal pumps:
Single stage centrifugal pump:
A single-stage centrifugal pump has only one centrifugal wheel and is suitable for low-pressure and low flow applications.
he so-called single-stage refers to a pump with only one stage impeller, and single suction refers to water being sucked in from one side of the impeller. This type of pump generally has a small flow rate and is mostly classified as a small pump. The structural feature is that the impeller is fixed at one end of the shaft, and the bearing supporting its weight is located at the other end of the shaft, acting like a cantilever beam, so it is also called a cantilever centrifugal pump. The rotating parts of the pump include the impeller, pump shaft, bearings, couplings, etc. The fixed parts include the pump body, bearing bracket, inlet and outlet of the pump, etc.
Single stage single suction centrifugal pump is a commonly used water pump in agriculture. Compared with other centrifugal pumps, its head is high, flow rate is small, structure is simple, and it is easy to use. Single stage single suction centrifugal pump, used for conveying clean water or other liquids with physical and chemical properties similar to water, with a temperature not exceeding 80 ℃. Features such as high efficiency, energy saving, reliable performance, and easy installation and use. At the same time, suitable hot water, high temperature, and corrosive chemical pumps and oil pumps are derived based on different usage temperatures, media, and other factors.
Multi stage centrifugal pump:
Multi stage centrifugal pumps have two or more centrifugal wheels, which can provide higher pressure and are suitable for high-pressure or long-distance transportation applications.
Multi stage pumps can be used in many industrial sectors such as petroleum, chemical, machinery, mining, light industry, medicine, and food. In many industrial production processes, such as vacuum filtration, vacuum water intake, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum rehydration, and vacuum degassing, multi-stage pumps are widely used. The application of water ring pumps is increasing due to their ability to remove flammable and explosive gases, as well as gases containing dust and water.
Vertical centrifugal pump:
The axis of a vertical centrifugal pump is vertical and is suitable for applications that require lifting liquids from low to high, such as drainage systems or water treatment plants.
When floor space is extremely valuable and performance is crucial, vertical centrifugal pumps provide a solution.
In wet pit environments, vertical centrifugal pumps do not require bearings or sealing devices below the waterline. The use of vortex impellers allows for the passage of any solid that can enter the inlet and greatly reduces particle degradation.
In addition, the concentric casing design greatly reduces shaft cycle deviation and brings efficient slurry processing.
Horizontal centrifugal pump:
The axis of the horizontal centrifugal pump is horizontal and suitable for general liquid transportation and industrial applications.
The working principle of a transverse centrifugal pump is to introduce water or liquid into the impeller through the inlet, generate pressure under the action of centrifugal force, and discharge it from the outlet. Its flow rate and head are both small, making it suitable for conveying media with low flow rates.
Vortex pump:
A vortex pump is a special type of centrifugal pump with a vortex impeller, suitable for treating liquids containing solid particles, such as sewage treatment or sludge pumps.
The impeller of the vortex pump is a uniformly thick disk with many radial small blades on both sides of its outer edge. There is a circular flow channel with equal cross-section on the pump casing corresponding to the blade, and the entire flow channel is divided into suction and discharge sides by a tongue, which are respectively connected to the suction and discharge pipelines of the pump. When the liquid in the pump rotates together with the impeller, a certain centrifugal force is generated, which is thrown outward into the annular flow channel in the pump casing and forced to flow back under the restriction of the flow channel shape. It then enters another flow channel from the root of the blade again.
Vortex pumps can transport highly volatile and gas containing liquids, but should not be used to transport thicker liquids with viscosity greater than 7 Pa · s and unclean liquids containing solid particles.
Crankshaft bend centrifugal pump:
A crankshaft bend centrifugal pump is a centrifugal pump used for transporting high-temperature or corrosive liquids. It has a bent crankshaft design that can reduce the length and vibration of the pump.
The above are just some common types of centrifugal pumps. In practical applications, there are various specialized centrifugal pumps, such as chemical centrifugal pumps, sludge pumps, cooling water pumps, etc. Choose the appropriate type of centrifugal pump according to specific needs.
