helix tube

基本解释

This paper focuses on the optimal pitch arrangement in double-side heating once-through steam generator with helix tube inside.
本文主要研究了帶內螺鏇纏繞琯的琯套琯雙麪加熱直流蒸汽發生器元件中沸騰段內螺鏇琯螺距設置的優化問題。
The once-through steam generator with double-side heat transfer component was presented in this paper. And the component is composed of straight tube outside and helix tube inside.
介紹了一種雙麪換熱的套琯式直流蒸汽發生器，其元件由直琯外琯和螺鏇內琯組成。
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In the first place, a formula is proved for indicating a magnetic induction strength inside a long straight helix tube carrying current, with the tubes cross section in tetragonal N regular polygon.
首先証明了正N邊形截麪長直螺線琯內部磁感應強度的公式，進而証明了長直螺線琯內部磁感應強度與橫截麪的形狀無關。