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发明公开
CN104833246A 一种余热回收热管的制作工艺 无效 - 撤回

一种余热回收热管的制作工艺
摘要：
超导热管是余热回收装置的主要热传导元件，与普通的热交换器有着本质的不同。热管余热回收装置的换热效率可达98％以上，这是普通热交换器无法比拟的。热管余热回收装置体积小，只是普通热交换器的1/3。本发明解决其技术问题所采用的技术方案是：一种余热回收热管的制作工艺，主要包括化学清洗、机械加工，惰性气体保护焊、管壳的检漏、高真空的获得、封口测试等主要过程。其中管子清洗液的配方，总的来讲是经过化学除油(或碱洗除油)、酸洗除锈除垢两个过程。
摘要（英）：

A superconducting heat pipe is the main heat transfer element of a waste heat recovery device, and is fundamentally different from ordinary heat exchangers. The heat exchange efficiency of a heat pipe waste heat recovery device can reach more than 98%, which is unmatched by ordinary heat exchangers. The heat pipe waste heat recovery device has a small size, only 1/3 of that of an ordinary heat exchanger. To solve the technical problems, the invention adopts the following technical scheme: a waste heat recovery heat pipe making technology mainly comprises the steps of chemical cleaning, mechanical processing, inert gas protection welding, tube shell leakage detection, high vacuum acquisition, sealing test, and the like. The formulation of tube cleaning fluid is completed by two processes: chemical degreasing (oil removal through alkaline cleaning), and rust and scale removal through acid pickling.

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