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English Translations » 【工业泵圈】 » 【Daily Question】Pump Equipment Technical Exchange Edition 20

【Daily Question】Pump Equipment Technical Exchange Edition 20180305

2018-03-05View Original

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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 centrifugal pump was originally designed with a rotational speed of n1=1450 r/min, a flow rate of Q1=100 m3/h, and a head of H1=60 m. Calculate the approximate flow rate and head when using a motor with a rotational speed of 2900 r/min A 200m3/h, 240m B 100m3/h, 240m C 200m3/h, 120m D 100m3/h, 120m Correct answer: A Flow rate is proportional to rotational speed, while head is proportional to the square of rotational speed. https://attach01.hcbbs.com/forum/201801/05/235057wnwxbzxb311ikvvz.jpg.thumb.jpg
Reply #22018-03-05
A 200m3/h, 240m
Reply #32018-03-05
A 200m3/h, 240m
Reply #42018-03-05
A 200m3/h, 240m
Reply #52018-03-05
A 200m3/h, 240m
Reply #62018-03-05
A 200m3/h, 240m

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Translated at 2026-07-21 03:32:30

Original: https://bbs.hcbbs.com/thread-1934734-1-1.html

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