Centrifugal, Reciprocating and Rotary Pumps

Accredited:

Accreditation number :Lan 129

1 CPD Credit

In the chemical process industry, the trend is to build larger plants with larger, more reliable, single component equipment.  This leads to many processes in the chemical industry depending on the transportation of solids, liquids and gas from one location to another over various distances.  For example, the transportation might be from storage to processing units or from one factory site to another.

Pumps are the tool used for the transportation of liquids.  Therefore the first three units focus on the following types of pumps:

• Centrifugal pumps
• Reciprocating pumps
• Rotary pumps

A pump adds energy to the fluid to be transported and energy moves the liquid from one point to another.

Generally, pumps are divided into two classes, namely the dynamic pressure types which include centrifugal pumps and the positive displacement types which include reciprocating and rotary pumps.

For each pump type, the following aspects will be discussed:

• Types of pumps
• Components
• Advantages and disadvantages
• Applications

Unit four focuses on gas transport equipment such as fans, blowers, ventilations.

In the following sections, we will look at the different types of compressors, their applications and advantages and disadvantages.  Compressors are mainly used for the transportation of gases.

In the compressor units, we will focus on:

• Dynamic compressors
• Reciprocating compressors
• Rotary compressors

The compressor not only adds energy to the gas but it also compresses the gas which aids in the transportation of the gas.

Generally compressors are also divided into two classes, namely the dynamic pressure types which include the centrifugal and axial compressors and the positive displacement types which include reciprocating and rotary compressors.

For each compressor type, the following aspects will be discussed:

• Types of compressor
• Components
• Advantages and disadvantages
• Applications

After the compressors, we concentrate on equipment used to transfer solids such as various conveyors, chutes and bucket elevators.

In the drive equipment section, we look at electric motors, turbines and internal combustion motors used for the above mentioned transfer equipment.

The next section discusses auxilliary equipment such as drives, clutches, couplings, bins and hoppers.

Then we give you an introduction to various faults and malfunctions with regards to the transfer equipment

Lastly safety is will be looked at.  This includes general safety and safety equipment as well as pump and conveyor safety.