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Titlebook: Centrifugal Pumps; Igor J. Karassik,Terry McGuire Book 1998Latest edition Chapman & Hall 1998 design.development.engine.hydraulics.service

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发表于 2025-3-23 12:40:04 | 显示全部楼层
Book 1998Latest editionmust decide. My good friend and associate, J. T. (Terry) McGuire, and I have been working very closely together for a long time. Our view of engineering problems and of their solutions coincide to an astonishing degree. When I was asked to prepare a second edition of my book Centrifugal Pumps, it wa
发表于 2025-3-23 14:42:24 | 显示全部楼层
Couplingssingle shaft. Their use is therefore limited to pump and driver combinations with two or three bearings (Fig. 12.1 [a] and ). This category includes lineshaft-driven vertically suspended pumps, which are considered two-bearing machines with additional precision aligned guide bearings.
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,Leistungsfähigkeit und Leerlauf,ction of its vanes on the liquid and is the only component of a centrifugal pump that does so. The other components, even those that convert kinetic energy to pressure, absorb some energy from the liquid. Given its unique function, the impeller can be considered the fundamental component of a centri
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Organische Synthese und Biologiepellers of a multistage pump face in the same direction, the total theoretical hydraulic axial thrust acting toward the suction end of the pump will be the sum of the individual impeller thrusts. The thrust magnitude (in pounds) will be approximately equal to the product of the net pump pressure (in
发表于 2025-3-24 14:39:52 | 显示全部楼层
,Einleitung. Historische Übersicht,es through it. Although the number and variety of devices used for this purpose has increased significantly as processes and the pumps used have evolved, the term stuffing box is still widely understood to mean the shaft seal, regardless of the type. For this reason, retaining the existing title of
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https://doi.org/10.1007/978-3-642-99599-6d breakdown-type seals. This is generally correct, but there are applications for which mechanical seals represent “too much technology,” and services for which they are not suitable (see the introduction to Chap. 8).
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https://doi.org/10.1007/978-3-642-99599-6h exceeded the capability of packed boxes. Their greatest use came with the advent of the high-speed boiler feed pump. At the time of this development, the early 1950s, mechanical seals were not able to demonstrate the dependability necessary for such a critical application. Today the circumstances
发表于 2025-3-25 01:30:32 | 显示全部楼层
https://doi.org/10.1007/978-3-642-99599-6der the action of radial and axial forces. Their design, therefore, is as critical as any of the other major pump parts; a pump with unreliable bearings is a continual cause of unnecessary outages and maintenance expense.
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