氣蝕余量 的英文怎麼說
中文拼音 [qìshíyúliáng]
氣蝕余量
英文
net positive suction head- 氣 : Ⅰ名詞1 (氣體) gas 2 (空氣) air 3 (氣息) breath 4 (自然界冷熱陰晴等現象) weather 5 (氣味...
- 蝕 : Ⅰ動詞1. (損失; 虧耗) lose 2. (腐蝕) erode; corrode Ⅱ名詞(天體現象) eclipse
- 余 : Ⅰ動詞(剩下) remain; leave: 9減4 余 5。 nine minus four is five ; four from nine leaves five ; i...
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 余量 : allowance; margin
-
Cw the feature of cw magnetic - driving vortex pumps is little capacity, high - head, it can convey the fluid containing 20 percent of gas and non - lubricative, also can be used to the occasion where npsh is low
Cw型磁傳動旋渦泵,是小流量高揚程應用最理想的選擇;可輸送含有20 %氣體的介質,可應用於非潤滑性流體和汽蝕余量很低的場合。The paper mainly discussed the reasons of stress from liquid ammonia pressure vessel causing crack through examing data and experimental results and analysing relevant referential documents and materials, taking 1200 ammonia vessel ' s crack and leaking in a certain fertilization company as an example : there existed remaining welding, stress in the equipment ; there existed a stress decaying surrounding, i. e., moisture 0. 2 %, and temperature > - 5 with o2 or co2 inside ; the higher the intensity of raw materials, more possible it was to have stress decaying crack
摘要以某化肥公司1200氨冷器殼體開裂泄漏的失效分析為例,通過對檢驗數據和結果及有關文獻資料的分析研究,探究了液氨介質壓力容器產生應力腐蝕裂紋的原因:設備中存在較高的焊接殘余應力;液氨介質具備應力腐蝕環境,即含水量0 . 2 % ,且有空氣( o2或co2 )污染(或摻入) ,使用溫度高於零下5 ;母材強度越高,應力腐蝕裂紋產生的傾向就越大。
分享友人