【Mechanical Equipment Technology Exchange Edition】Mechanical Equipment 【Daily Question】20201107
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This post was last edited by wyr261 on 2020-11-7 08:30. Positive displacement pumps are a type of chemical pump; (A) does not belong to positive displacement pumps. A. Centrifugal pump B. Screw pump C. Reciprocating pump D. Piston pump. For the daily quiz in the rotating equipment category, please reply within 3 days.:victory: Rewards range from 5 to 15 points depending on the response; those who can provide detailed answers will receive additional rewards. All forum members are welcome to participate actively and help promote the development of the forum! ! !
This post was last edited by Wang Meng_ZEFZ on 2020-11-7 08:32. A. Centrifugal pumps and vane pumps: These are pumps that use a rotating impeller inside to transport liquid. Depending on the structure of the pump blades, there are centrifugal pumps, axial flow pumps, vortex pumps, etc. Positive displacement pumps: They transport liquids by utilizing the periodic variation of the pump’s working volume. They are divided into reciprocating pumps (piston pumps, plunger pumps, diaphragm pumps, etc.) and rotary pumps (gear pumps and screw pumps, etc.).