centrifugal pump is normally classified on the basis of the|between bearing pump vs overhung : exporters Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational energy typically comes from an engine or electric motor. They are a sub-class of dynamic axisymmetric work-absorbing turbomachinery. The fluid enters the pump impeller along or near to the rotating axis and is accelerated by the imp… This article presents results from research whose purpose is to determine the impact of two main factors on the operational efficiency of a double-entry centrifugal pump. .A volute is a curved funnel that increases in area as it approaches the discharge port. The volute of a centrifugal pump is the casing that receives the fluid being pumped by the impeller, maintaining the velocity of the fluid through to the diffuser. As liquid exits the impeller it has high kinetic energy and the volute directs this flow through to the discharge. As the fluid travels along the volute i.
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There are two main families of pumps: centrifugal and positive displacement pumps. In comparison to the latter, centrifugal pumps are usually specified for higher flows and for pumping lower viscosity liquids, down to 0.1 cP. In some chemical plants, 90% of the pumps in use will be centrifugal pumps.
In general, centrifugal pumps can be classified in three distinct ways: by structural features, function, and specific speed. Understanding the classification of centrifugal pumps is crucial for selecting the right pump for a specific application. This article will delve into the different categories of centrifugal pumps based on various criteria, providing insights into the types, functions, and characteristics of these essential pieces of equipment.
Centrifugal pumps can be classified based on the manner in which fluid flows through the pump. The manner in which fluid flows through the pump is determined by the design of the pump casing and the impeller.
Type of Pumps Classification
Centrifugal pumps can be classified into various types based on different criteria. One common classification is based on the number of impellers the pump has. Single-stage pumps have only one impeller, while multi-stage pumps have multiple impellers stacked in series. Single-stage pumps are suitable for applications where low to moderate pressure is required, while multi-stage pumps are used for higher pressure applications.
Another classification criterion is based on the orientation of the pump shaft. Horizontal pumps have a shaft that is parallel to the ground, while vertical pumps have a shaft that is perpendicular to the ground. Vertical pumps are often used in applications where space is limited, as they have a smaller footprint compared to horizontal pumps.
Pumps Classification Chart
The following chart provides an overview of the classification of centrifugal pumps based on different criteria:
| Classification Criteria | Types of Pumps |
|------------------------------|------------------------------------------------------|
| Number of Impellers | Single-stage, Multi-stage |
| Shaft Orientation | Horizontal, Vertical |
| Design Configuration | Axial Split, Radially Split |
| Bearing Arrangement | Between Bearing, Overhung |
| Application | Water Pumps, Chemical Pumps, Oil Pumps |
Different Types of Centrifugal Pumps
Centrifugal pumps can be further classified based on their design configuration. Axial split pumps have a casing that is split along the axis of the pump, allowing for easier maintenance and repair. Radially split pumps, on the other hand, have a casing that is split perpendicular to the axis of the pump. Each design configuration has its advantages and is chosen based on the specific requirements of the application.
Another important classification criterion is the bearing arrangement of the pump. Between bearing pumps have bearings located between the impeller and the motor, providing better support and stability. Overhung pumps, on the other hand, have bearings located at one end of the pump shaft. The choice between a between bearing pump and an overhung pump depends on factors such as the operating conditions, load capacity, and maintenance requirements.
Classification of Centrifugal Pump
Centrifugal pumps can also be classified based on their application. Water pumps are used for various water-related applications, such as irrigation, drainage, and water supply. Chemical pumps are designed to handle corrosive and abrasive fluids, making them suitable for chemical processing plants and industrial applications. Oil pumps are specifically designed for handling oil and petroleum products, making them essential in the oil and gas industry.
Centrifugal Pump Labelled Diagram
A labelled diagram of a centrifugal pump can provide a visual representation of its components and how they work together to pump fluid. The main components of a centrifugal pump include the impeller, casing, suction pipe, discharge pipe, and motor. The impeller is the rotating component that imparts energy to the fluid, while the casing directs the flow of the fluid through the pump. The suction pipe is connected to the inlet of the pump, while the discharge pipe is connected to the outlet. The motor provides the power to drive the pump.
Between Bearing Pump vs Overhung
The choice between a between bearing pump and an overhung pump depends on various factors. Between bearing pumps are typically more robust and can handle higher loads and pressures compared to overhung pumps. They are also more stable and have a longer service life. However, between bearing pumps are more complex in design and require more maintenance. Overhung pumps, on the other hand, are simpler in design and easier to install and maintain. They are suitable for applications where space is limited and the load capacity is lower.
Axial vs Radially Split Pump
Axial split pumps and radially split pumps differ in the orientation of the casing split. Axial split pumps have a casing that is split along the axis of the pump, allowing for easier access to the internal components for maintenance and repair. Radially split pumps have a casing that is split perpendicular to the axis of the pump, providing better structural integrity and resistance to internal pressure. The choice between an axial split pump and a radially split pump depends on factors such as the operating conditions, maintenance requirements, and ease of access to internal components.
Performance Characteristics of Centrifugal Pump
The performance characteristics of a centrifugal pump are crucial in determining its efficiency and effectiveness in a specific application. Some key performance characteristics include:
- Flow Rate: The rate at which the pump can deliver fluid, measured in gallons per minute (GPM) or cubic meters per hour (m3/h).
- Head: The height to which the pump can lift the fluid, measured in feet or meters.
- Efficiency: The ratio of the pump's output power to its input power, expressed as a percentage.
- NPSH (Net Positive Suction Head): The minimum pressure required at the pump suction to prevent cavitation.
- Power Consumption: The amount of power consumed by the pump to operate, measured in kilowatts (kW) or horsepower (HP).
Classification of Centrifugal Pump Centrifugal pumps are classified in …
After centrifugal pump performance test, the results are checked with the rated conditions or guaranteed point. The acceptable tolerance range is based on applicable pump . See more
centrifugal pump is normally classified on the basis of the|between bearing pump vs overhung