【Daily Question】Pump Equipment Technical Exchange Edition 20180211

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Participation: Prize 3 Wealth； Correct answer: Reward of 10 wealth points ； Note: A reward of 10 wealth points will be given for correct answers within 48 hours; this post is valid for 48 hours. Multiple-choice question: A pump without rotating parts is (). A Magnetic drive pump B Hydraulic diaphragm metering pump C Jet pump D Vortex pump Correct answer: C Jet pump. A jet pump, also known as a water jet pump, consists of a nozzle, a suction chamber, a mixing tube, and a diffuser tube as its basic components. It has a simple structure and reliable performance, and is frequently used in water supply and drainage projects. The working principle of a jet pump is to utilize the turbulent diffusion effect of turbulent jets to achieve mass and energy transfer. That is, the faster-working fluid is ejected from the nozzle, where it mixes with the fluid being drawn in within the throat; momentum, heat, and mass are exchanged between the fluid particles or droplets, thereby causing their mass and momentum to become consistent. https://attach01.hcbbs.com/forum/201801/05/235057wnwxbzxb311ikvvz.jpg.thumb.jpg