pumps its advantages disadvantages and applications

Pumps

1. PUMPS PRESENTED BY M. JEEVAN PRASAD Assistant Production Engineer

2. CONTENTS Introduction Parts of Pump Components of Pump Performance characteristics of a Pump Classification of Pumps Selections factors to consider Applications Advantages Disadvantages

3. INTRODUCTION Definition: A Pump is a mechanical device used to transfer different fluids from one position to another. Pump is a hydraulic device that lifts a fluid from a low level to a high level and moves it from a low-pressure area to a high-pressure area . Pumps transfer fluids by converting the mechanical energy of the fluid into pressure energy (hydraulic energy). Pumps typically consist of three main parts: a housing , an impeller , and a motor . The housing is the pump’s mainframe , which supports the impeller and contains the pumped fluid . The impeller is a rotating set of blades that helps move the fluid through the pump. The motor provides the power needed to rotate the impeller and create suction.

4. Parts of a Pump Design

5. Components of a Pump 1. Impeller The impeller is the most important and central part of pump design. It is responsible for producing the pumping action that moves water or other fluids through the system. The impeller’s shape, size, and design determine how well a pump will perform. 2. Shaft The shaft is another important pump part, as it transmits power from the motor to the moving parts inside the pump housing. Most pumps have either a simple straight shaft or an offset shaft to optimize performance. 3. Casing The casing houses all of the internal components of a pump and forms its outermost shell. Casing designs vary depending on whether they are dry-pit pumps or submersible pumps, but both types should be designed for optimal functionality and performance.

6. Components of a Pump 4. Sealing The seal is a vital part of any pump design because it helps protect the internal components from damage or overheating by preventing water from entering the shaft housing area. Different seals are used based on the pump design and pump application. 5. Bearings The bearings are important pump parts that allow the rotating shaft to turn smoothly while transferring power to other moving parts within the system. Modern pumps typically use either ball bearings or roller bearings, which vary in their durability, efficiency, and other properties. 6. Couplings The coupling serves as an intermediary between the motor and pump shaft , allowing them to rotate together without slipping or producing too much vibration or noise. Couplings are usually made from plastic, rubber, or metal and come in various shapes and sizes, depending on their application.

7. Components of a Pump 7. Suction Nozzle The suction nozzle is what draws water into the pump housing so that it can be pressurized and moved through the system. Most nozzles have a specific shape to optimize flow rate , efficiency , and other performance characteristics, but they are also highly customizable for different applications. 8. Discharge Nozzle The discharge nozzle is responsible for controlling the direction and velocity of the pressurized water being pumped out of the system, which directly affects how much force will be applied to whatever needs to be moved by the pump. 9. Check Valve An important pump part, the Check Valve, is a special one-wave valve that stops water or other fluid from flowing back into the pump housing after discharge. This is an important safety feature that protects the pump from damage and ensures that it continues to operate correctly.

8. Components of a Pump 10. Strainer The strainer is a device that helps remove solid particles from the water or the fluid before they can enter and damage the pump components. It is typically located near the pump’s inlet so that water must pass through it before entering the system. The size and quality of the strainer play an essential role as it guards the pump. The auxiliary pump parts include: the inlet and outlet check valves, the recirculation valve, the priming valve, and the pressure relief valve. These parts are essential for ensuring that the pump operates properly and efficiently.

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