Types of pumps pdf file

In this article we will learn about the working of various types of rotary pumps, i. Mukesh sahdev, associate content writer presented at the chemical engineers resource page. Bore hole and wells where the water source is many meters below ground level. Pumps and pumping system bureau of energy efficiency 1 syllabus pumps and pumping system. Click here to download classification of pumps pdf. They are also used for chemical transfer, dewatering underground coal mines, food manufacturing or where the liquid being pumped has a high solids content. Centrifugal pumps can also be constructed in a manner that results in two distinct volutes, each receiving the liquid that is discharged from a 180.

Pumps of this type are called double volute pumps they may also be referred to a split volute pumps. Many turbomachines contain some type of housing or casting that surrounds the rotating blades or rotor, thus forming a n internal flow passageway through. Positive displacement pumps can be of reciprocating and rotary type. The two main types are the piston pump and the rotaryvane pump. The fluid that that flows through the clearances in the pump from the discharge to the suction of the pump. They can perform many different functions, including moving a fluid from one location to another, recirculating a fluid in a closed system, such as in a.

Pumps can be classified into three major groups according to the method they use to move. Often, several different types meet the same service requirements. Types of pumps pumps come in a vast array of shapes and sizes and in a great range of designs. Both are able to exhaust gas at atmospheric pressure and their typical main characteristics are. Types positive displacement pumps a lobe pump a positive displacement pump causes a fluid to move by trapping a fixed amount of it then forcing displacing that trapped volume into the discharge. Each time the pump spins, a specific amount of water is moved. These pumps are not selfpriming, as there is a great deal of clearance between the rotating and. Positive displacement pumps allow liquid to flow into an open cavity trap the liquid in the pump transport liquid from the suction to discharge port mechanically force liquid out of the pump.

Request pdf pump types a small, electrically powered pump a large, electrically driven pump electropump for waterworks near the hengsteysee, germany. Airoperated and mechanical as the name suggested, airoperated diaphragm pumps aka aod pumps or aodd pumps are powered solely by air making them suitable for dangerous and tough environments. Generally used for low pressure, highvolume, flow applications. A pump is a device that moves fluids liquids or gases, or sometimes slurries, by mechanical action, typically converted from electrical energy into hydraulic energy. What links here related changes upload file special pages permanent link. Many factors go into determining which type of pump is suitable for an application. Gear pumps a simple type of rotary pump where the liquid is. Centrifugal pumps develop pressure by increasing the velocity of the liquid liquid is literally flung out of the cutwater.

They can also be used in the same applications as straight centrifugal pumps. Basics concepts of operation, maintenance, and troubleshooting, part i by. The rotational energy typically comes from an engine or electric motor. Centrifugal pumps are the most widely used type of pump for the transfer of liquids. Pumps are used to add energy to fluids gases, liquids, or slurries in order to produce flow or increase pressure. In the previous article we learned about the various characteristics, main parts and special features of the rotary pumps. Carries fluid from one location to another, relatively at low pressure 1721 bar. Pressure relief valves that are usually fitted to the delivery side of the pump to provide safety protection against high pressures also limit maximum pressures possible. Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow.

Selfpriming centrifugal pumps are unique because they can lift liquids as high as 15, 20 or even 25 from ponds, underground tanks, pits, rivers, etc. The fact of the matter is that there are three types of problems mostly encountered with centrifugal pumps. Centrifugal pumps use centrifugal force through the rotation of the pump impeller to draw fluid into the intake of the pump and force it through the discharge section via. Types, performance evaluation, efficient system operation, flow control strategies and energy conservation opportunities 6. Centrifugal pumps are the most common types of pumps used in the oil and gas industry.