20.Different Types of Pumps-classification ,application

 

 

Different Types of Pumps

Classification of Pumps | Different Types of Pumps:- As an a chemical engineer or a process

engineer or as a project engineer it is very important to have all information about pumps.

Pumps is a very big chapter which can not covered in one article.We will try to give more

information on pumps.like what is pump ,what are the different tapes of pumps , classification

of pumps ,dynamic pumps,centrifugal pumps,axial flow pumps , radial flow pumps .

 

Now we can start this article with a simple question .

What is pump ?

Pump is a mechanical machine or a device which transfer the liquid/water/fluid/gas from

one place to another place .

 

It is a mechanical machine which transfer the liquid by using mechanical,electrical,

centrifugal force.

 

In Centrifugal pump,it use electrical energy (motor use electrical energy ), the it converts

in to mechanical energy

 

 

This article includes ,Classification of Pumps , Different Types of Pumps,Centrifugal pumps ,

types of centrifugal pumps ,axial flow pumps ,radial flow pumps ,screw pumps,application

of pumps.

 

Classification of Pumps

Now we can study about what are the different types of pumps.There two basic and main

types of pumps .Pumps can be dived in to two types according to there application and method of use for
displacement of pumps.

 

1) Centrifugal Pumps

2) Positive displacement pumps

 

Classification of Pumps

We study only basic about it , and in next some articles ,we will study in deep about each topic

.

Centrifugal Pumps

Centrifugal pump is largely  used industrial pump.This is mostly used or largely used in industry as well as in

normal use like use in house ,agriculture etc.We can called it as industrial pump .

We can called it as agriculture pump.This type of pump is use for circulation of cooling water in cooling system.

This types of pump contain a impeller in its casing this impeller rotation create a centrifugal force. To design a centrifugal pump we need to select a diameter of impeller as well as MOC of impeller as per process requirements .A pump manufacture will decide the diameter of pump as per client requirement .

 

It is mechanical device which is designed to lift the liquids from one place another place .
This Pump use mostly for water lifting in household use and cooling water circulation in
industry .This pumps is used for solvent , reaction mass , feed transfer in chemical industry . To choose the right pump as per your process you have to idea about transfer fluid properties , like temperature ,pressure ,viscosity , density and solid content too. If solid content is more than 2 % then we cant use centrifugal pump .For solid content having more than 2 percent you have to with gear pump. 

Working Principle Centrifugal pumps

 

This pump use electric energy of motor. Electric energy convert in to rotation energy and

rotational energy in to Centrifugal force .When we start the motor , motor use electric energy ,

motor convert electric energy in to rotation energy using impeller, impeller rotates vane along with him .This rotating impeller rotate liquid along with him. Then liquid go out to the pumps through discharge nozzle .

 

Centrifugal pumps can be further classify as bellows .

1) Axial Flow Pumps
2) Radial Flow Pumps
4) Horizontal Centrifugal Pumps
5) Vertical Centrifugal Pumps
6) Fire Pumps
7) Submersible Pumps

Classification of Pumps | Different Types of Pumps

Axial Flow Pumps ( Type of Pump)

This pump is specially design fir high flow rate .This pump is operates at low pressure .

In axial pump ,liquids inter in to the pumps casing through suction nozzle, then rotate by impeller

and finally discharge to discharge nozzle.

 

Radial Flow Pumps

it is one of the main type of pump,out of different types of pumps. In axial direction pumps ,flow is axial. But in radial direction pumps flow is radially .Due to direction of flow is radial , this pumps called as radially direction pumps .This is one of the most important types of Centrifugal pumps.

Horizontal Centrifugal Pumps

 

In this type of pumps ,motor and pumps are in horizontal.shaft of motor is in horizontal position.
This is cost effective pump. most of the centrifugal pump are horizontal in arrangement. This pump is best for high flow rate. if you want high flow rate then you can use this type of centrifugal pumps.

Vertical Centrifugal Pumps

 

This is also one of the main type of pump.(Classification of Pumps) Arrangement of such kind of pump is vertical so it called as vertical centrifugal pumps .This pump also named as Cantilever pump.Shaft position in this type is vertical to ground level.It gives low flow rate than horizontal centrifugal pump.

Single Stage Centrifugal Pumps

 

This type of pumps contain only one impeller.This types of pumps is suitable for flow rate of low to moderate.(type of pump )

Multi Stage Centrifugal Pumps

 

This type of centrifugal pumps contains numbers of impeller .Instead of using one large impeller we can use number of impeller in series .

 

Submersible Centrifugal Pumps

This are mainly design for bore-hole.This pump contain a hermetically sealed motor. This is Multistage centrifugal pump.

 

Booster Pumps

 

This pump is mainly use for fire hydrant system. The main work of it is boost the pressure in the system . (classification of pumps)

Mono-Block Pumps

A mono-block pump is a main type centrifugal pump , in which motor and pump are build together .
This types of pumps not contain any type of coupling .

This type of pump specially used for eater transfer in society. 

Hope above article is enough to clear your concept.Above article clear basic details about what are the different types pumps , what is centrifugal pump, how c it work , types ,components of .

For Centrifugal pump it is very important to calculate net positive suction head (NPSH) .There are two types of NPSH , one is net positive suction head available and second is net positive suction head required.To know how to calculate NPSH available refer our article ” NPSH of pump “

script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js">

Components of centrifugal pump

To select a pump for your process as per your requirements it is very important to know about what are the components of a centrifugal pumps.The main components are casing ,impeller ,vane,shaft,mechanical seal ,coupling ,eye

Types of Impeller

There are three types of impeller .

• Open Impeller
• Close Impeller
• Semi open impeller

Semi open Impeller

Closed Impeller

open Impeller

Positive displacement pumps

In next article we will study in details about it . There three types of Positive displacement pumps

1) Rotary Type
2) Gear Type
3) Reciprocating type

Selection of pump

we have different types of pumps , out of that pump(type of pump) how can we choose desired pump

as per our requirement.

followings are some useful tips for selections of pumps .

 

1) Viscosity -for viscosity having range 1 to 15 cp you can choose ,centrifugal pump.

– For viscosity above than 15 cp you have to choose ,gear pump ,lobe pump or

screw pump.

 

If liquid contains some percentage of solid then don’t use Centrifugal pump .

 

Pump Safety

 

Pump Safety is very important .if we are using centrifugal pump the we need to do some following things .

1) Strainer in suction of pump- It is necessary to prevent big particle any type metal part or wood part(type of pump) .

2) NRV – Non retirn valve is necessary to prevent back pressure on vanes of pump.

External Links  ,

• types of pumps ppt (type of pump)

  types of pumps pdf

  classification of pumps

  types of centrifugal pumps

  types of pumps in plumbing

  pump types chart

  reciprocating pump

  types of pumps used in chemical industry

  Join our Free online Course on Pump

Date -31-05-2020 , Time -17:00 IST
Click Here
Topic: Industrial Pumps
Time: May 31, 2020 05:00 PM Mumbai, Kolkata, New Delhi
Meeting ID: 718 4173 9221
Password: 9eV784
(Classification of Pumps in fluid mechanics)

Some use full facts about pumps are as follows.

Classification of pumps,Different Types of Pumps.Pump ,classification of pumps ppt ,types of centrifugal pumps ,types of pumps and their applications .What is pump ,industrial pump types ,type of pump in hindi ,pump category.This is useful for ,Types of centrifugal pumps,different types of pumps pdf. Types of pumps for liquid . Types of pumps in Tamil.classification of pumps pdf .

.

Frequently Asked Question on pump used in chemical industry

What is the role of pumps in the chemical industry?

Pumps in the chemical industry are used to transport fluids, such as chemicals, solvents, and process liquids, from one location to another within a facility or between different processes.

What types of pumps are commonly used in the chemical industry?

Common types of pumps used in the chemical industry include centrifugal pumps, positive displacement pumps (such as reciprocating pumps and rotary pumps), and specialized pumps designed for specific chemical processes.

How are centrifugal pumps beneficial in the chemical industry?

Centrifugal pumps are widely used in the chemical industry due to their ability to handle a wide range of flow rates and pressures, as well as their simplicity, efficiency, and reliability.

What are positive displacement pumps, and why are they used in the chemical industry?

Positive displacement pumps deliver a fixed volume of fluid with each cycle of operation. They are commonly used in the chemical industry when precise flow control, high pressure, or handling viscous fluids is required.

What factors should be considered when selecting a pump for chemical industry applications?

Factors to consider include the type of fluid being pumped, flow rate requirements, pressure conditions, temperature compatibility, corrosion resistance, material compatibility, and the specific process requirements.

What safety precautions should be followed when operating chemical pumps?

Safety precautions include proper grounding, ensuring the pump is compatible with the fluid being pumped, following proper installation and maintenance procedures, and adhering to industry-specific safety standards.

How can pump efficiency be optimized in the chemical industry?

Pump efficiency can be optimized by selecting the right pump type for the application, maintaining proper pump speed and impeller size, reducing system resistance through proper piping design, and ensuring regular maintenance and inspections.

What maintenance practices are important for chemical industry pumps?

Regular maintenance practices include monitoring pump performance, checking for leaks, inspecting and replacing worn-out parts, lubrication, aligning the pump and motor, and following manufacturer-recommended maintenance intervals.

What are the common causes of pump failure in the chemical industry?

Common causes of pump failure include cavitation, corrosion, mechanical wear, improper installation, overheating, electrical issues, and running the pump outside of its operating range.

How can cavitation in chemical pumps be prevented?

Cavitation can be prevented by ensuring the pump is properly sized and matched to the system requirements, maintaining sufficient NPSH (Net Positive Suction Head), and using features such as inducers or pump impeller modifications.

What is the importance of pump material selection in the chemical industry?

Pump material selection is crucial in the chemical industry to ensure compatibility with the fluids being handled, resistance to corrosion or chemical attack, and to maintain the integrity and longevity of the pump.

How are pumps used in handling hazardous chemicals in the industry?

Pumps used in handling hazardous chemicals are designed with additional safety features, such as leak detection systems, double mechanical seals, and containment chambers, to minimize the risk of spills or leaks.

Can pumps in the chemical industry handle high-temperature fluids?

Yes, pumps designed for the chemical industry can handle high-temperature fluids. They are often constructed with heat-resistant materials and equipped with proper insulation or cooling systems.

How can pump efficiency be monitored in the chemical industry?

Pump efficiency can be monitored by measuring parameters such as flow rate, pressure, power consumption, and comparing them to the pump’s performance curves or using advanced monitoring systems that provide real-time data.