Centrifugal pumps and pipeline pumps are two different types of pumps commonly used in industrial production, and there are some obvious differences in their structure, working principle and use occasions.
1. Structural differences.
The centrifugal pump is mainly composed of impeller, pump casing, shaft seal and other parts, among which the impeller is the core component of the centrifugal pump, which generates centrifugal force by rotation to throw the liquid out of the center of the impeller and flow out through the pump casing. The pipeline pump is mainly composed of inlet and outlet pipes, pump casings, impellers and other parts, and the inlet and outlet pipelines are the parts connecting the pump and the pipeline, which play the role of guiding the water flow.
Second, the working principle is different.
The working principle of centrifugal pump is to use the centrifugal force generated by the rotation of the impeller to throw the liquid out of the center of the impeller and flow through the pump casing to the outlet pipeline. During the rotation of the impeller, the energy generated when the liquid is thrown out will prompt the liquid to accelerate its flow, resulting in a certain pressure and flow rate. The working principle of the pipeline pump is to introduce the liquid into the pump casing through the inlet and outlet pipes, and then generate energy through the rotation of the impeller to make the liquid flow out of the outlet pipe.
Third, the use of different occasions.
Centrifugal pumps are mainly used to transport liquids, such as water, oil, acid and alkali liquids, etc., and are suitable for liquid transportation and circulation in various industrial production processes. Pipeline pumps are mainly used to transport liquids from pipelines to other equipment or systems, such as material transportation in chemical production and water circulation in water treatment.
Fourth, the performance parameters are different.
The flow rate and head of a centrifugal pump are its main performance parameters, the flow rate refers to the amount of liquid passing through the pump per unit time, and the head refers to the pressure difference that the pump can produce. The performance parameters of the pipeline pump mainly include flow, head, power, etc., in which the flow rate and head are similar to centrifugal pumps, but the power of the pipeline pump is usually smaller, because its role is mainly to transport liquids from the pipeline to other equipment or systems.
Fifth, the selection basis is different.
In industrial production, the selection of the right centrifugal pump or pipeline pump needs to be selected according to the actual needs. For the selection of centrifugal pumps, parameters such as the nature of the liquid, flow rate and head, as well as the efficiency and reliability of the pump, need to be considered. For the selection of pipeline pumps, it is necessary to consider the size of the inlet and outlet pipes, the nature of the liquid, the flow rate and head and other parameters, as well as the installation and use environment of the pump.
In short, centrifugal pumps and pipeline pumps are two different types of pumps, and there are obvious differences between them in terms of structure, working principle and use occasions. In industrial production, it is necessary to select the right pump type according to the actual needs and carry out the corresponding selection work.