管孔

管孔是管板或管箱上精密加工的圆柱形开口，作为换热管的安装点。这些孔保持精确的对齐、间距和密封面，以确保管子正确插入、机械支撑和流体密封，从而维持换热系统的热效率和结构完整性。

管孔为管子提供固定位置，使其插入并通过胀接或滚压固定，形成紧密的机械密封，防止管程和壳程之间的流体泄漏，同时允许热量通过管壁高效传递。

Tube holes provide fixed positions for tubes to be inserted and expanded/rolled into place, creating a tight mechanical seal that prevents fluid leakage between tube-side and shell-side compartments while allowing efficient heat transfer through the tube walls.