在深冷流程中尤其是空气分离设备中广泛地运用螺旋式横流热交换器,这种热交换器一般都是用紫铜管制造的.管子分数层绕于中心管上,外面由用铜板作的外筒包紧.高压气体或液体在管内流过,而低压气体横向流经管外空间,方向与管子相切.曾出版过许多研究管外空间给热问题的文章. Spiral cross-flow heat exchangers are widely used in cryogenic processes, and particularly in air separation plants, which are typically made from a copper tube with a tube fraction layered around a central tube and a copper plate The high pressure gas or liquid flows through the tube while the low pressure gas flows laterally through the space outside the tube in a direction tangential to the tube A number of articles have been published to investigate the problem of heat transfer outside the tube.