Typical centrifugal pump impeller left and volute right. Types, performance evaluation, efficient system operation, flow control strategies and energy conservation opportunities 6. Diaphragm pumps a diaphragm pump is a plungertype of pump, similar in operation to the fuel pump in your car. But, in actual operation, we find that 300 m3hr is sufficient. A twostage pump can be thought of as two separate pumps built into a single casing. Many turbomachines contain some type of housing or. Figure 12 reciprocating positive displacement pump operation. The fdny uses 2stage pumpers and 3stage pumpers highpressure. A rotating component comprised of an impeller and a shaft ii. Detailed descriptions of the pump types commonly used in water. The operating manual of any centrifugal pump often starts with a general statement. A stationary component comprised of a casing, casing cover, and bearings.
Types, performance evaluation, efficient system opera tion, flow. Centrifugal pumps enjoy widespread application partly due to their ability to operate over a wide range of flow rates and pump heads. Review different pump types commonly used understand the difference between centrifugal pumps and positive displacement pumps understand the working principle of the tuthill. Centrifugal pumps are the most common type of pumps found in doe facilities. The positive displacement pump is commonly used to feed chemicals into the water or to move heavy suspension, such as sludge. Every pump operators basic equation by paul spurgeon continuing education course to earn continuing education credits, you must successfully complete the course examination. 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. Pumps and pumping system bureau of energy efficiency 1 syllabus pumps and pumping system. We aim to clear up the confusion in the classification of pumps. This can be operated by many energy resources which include manual operation, electricity, engine, wind power and many more, day to day life to industrial. The volume is constant given each cycle of operation. Often a centrifugal pump is equipped with a radial vaned di. On the up stroke, the suction valve opens and water.
This type of pump is not suitable for continuous operation or process operation. 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. Centrifugal pumps develop pressure by increasing the velocity of the liquid liquid is literally flung out of the cutwater. Fundamentals of fluid mechanics chapter 12 pumps and. Operation, maintenance and monitoring basics daniel kernan manager monitoring and control group, itt executive summary pumps are at the heart of most industrial processes, and the second most common machine in the world. Centrifugal pumps types of centrifugal pumps dultmeier. With seemingly endless variety of pump sizes and types on the market, it can be confusing. Click here to download classification of pumps pdf.
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