Pumps Types - Types of Pump - Classification of Pumps - Different Types of Pump

Summary

This video script explains the function and types of pumps, which are devices moving liquids or gases through mechanical action. It details the components of a pump, including the inlet, casing, and outlet, and distinguishes between Positive Displacement Pumps that move fluid by trapping and displacing it, and Dynamic Pumps that impart velocity and pressure to the fluid. The script further categorizes pumps into rotary, reciprocating, and linear types, and discusses various dynamic pump classes like centrifugal, axial flow, mixed flow, and radial flow pumps, along with special types like cantilever, jet, and turbine pumps.

Takeaways

• 🌀 A pump is a device that moves liquids or gases through mechanical action, with an inlet, casing, and outlet.
• 💧 The suction side of the pump has the lowest liquid pressure, where liquid enters the pump.
• 🏢 The casing's purpose is to contain the liquid and house the pump's internal parts during operation.
• 🚀 The discharge side of the pump has the highest liquid pressure, where liquid exits the pump.
• 🔄 The type of component inside the pump determines its category: Positive Displacement Pump or Dynamic Pump.
• 🔄 Positive Displacement Pumps move fluid by trapping and displacing a fixed volume, such as in gear, screw, and rotary vane pumps.
• 🌀 Dynamic Pumps, also known as Kinetic pumps, impart velocity and pressure to fluid through an impeller, converting velocity into pressure.
• 🔄 Rotary-Type Positive Displacement Pumps require close clearances and operate at slow, steady speeds to prevent erosion.
• 🔄 Reciprocating-Type Positive Displacement Pumps use pistons, plungers, or diaphragms with valves to move fluid in a controlled direction.
• 🌀 Centrifugal Pumps generate flow and pressure dynamically through an impeller and volute or casing.
• 🌐 Special Pumps, such as Cantilever, Jet, and Turbine Pumps, are defined by unique characteristics and applications.

Q & A

What are the main components of a pump?

The main components of a pump include the inlet, casing, and outlet. The inlet is where the liquid enters, the casing contains the liquid and internal parts during operation, and the outlet is where the liquid exits the pump.

What is the function of the casing in a pump?

The casing in a pump serves to contain the liquid inside the pump during operation. It also houses all of the pump's internal parts, ensuring that the liquid is directed correctly through the system.

How does a Positive Displacement Pump work?

A Positive Displacement Pump works by trapping a fixed amount of fluid and forcing or displacing that trapped volume into a discharge pipe or system. This type of pump typically uses an expanding cavity on the suction side and a decreasing cavity on the discharge side.

What distinguishes a Dynamic Pump from a Positive Displacement Pump?

Dynamic Pumps impart velocity and pressure to the fluid as it moves through or past the pump impeller, converting some of that velocity into additional pressure. This contrasts with Positive Displacement Pumps, which move fluid by trapping and displacing fixed volumes.

What are the three types of Rotary-Type Positive Displacement Pumps?

The three types of Rotary-Type Positive Displacement Pumps are gear pumps, screw pumps, and vane pumps.