side valve head 中文意思是什麼

side valve head 解釋
側置氣門氣缸蓋
  • side : n 1 (左右上下等的)邊,側面;(事物內外等的)面,方面;(人、物等的)旁,旁邊。2 〈數〉(三角形...
  • valve : n 1 【機械工程】閥,活門,舌門;汽門。2 【解剖學;動物學】瓣,瓣膜;(貝)殼瓣;【植物;植物學】...
  • head : n 1 頭,頭部,首。2 頭腦,才能;智力,想像力,理解力。3 前部,上部;頂端,尖突部;船長;(書頁等...
  1. One side, groovy cast steel flap valves increase the head loss, waste electricity, the other side, when flap valves close, it always delay time because of it ' s low proportion. the bump load seriously threaten the safety of pumping station. through the research and development of flap valve used in the renovation practices in the design of air - filled floating flap valve in no. 1 chuhe pumping station of anhui province, the working characteristics and design methods of air - filled floating flap valve are studied in this paper

    但在拍門運行使用的同時,又時常暴露出一些缺陷,主要有:一是常規的鑄鐵或鑄鋼拍門加大了流道的水頭損失,特別是對于裝機容量較大的排澇泵站,其電能損耗相當可觀;二是拍門在自重下下落關閉時,往往由於過多考慮水頭損失導致浮重過小而延誤閉門時間,致使水體倒灌,再因緩沖裝置失靈導致閉門時門體對門框撞擊力很大,嚴重危及站身安全。
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