一种高温热管真空固态充装装置和方法

By using a vacuum solid-state filling device and method, the problems of contamination and oxidation in the filling of high-temperature heat pipes have been solved, and efficient and automated working fluid filling and welding have been achieved. This method is suitable for the mass production of easily oxidized high-temperature alloy heat pipes, thereby improving the quality of heat pipe products and production efficiency.

CN122009605BActive Publication Date: 2026-07-17NUCLEAR POWER INSTITUTE OF CHINA

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NUCLEAR POWER INSTITUTE OF CHINA
Filing Date
2026-04-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing high-temperature heat pipe filling processes suffer from problems such as easy contamination of the working fluid, low filling efficiency, and difficulty in achieving high-temperature filling of easily oxidized pipe materials. Especially in application scenarios above 900℃, traditional methods are difficult to avoid oxidation risks and are costly.

Method used

Design a high-temperature heat pipe vacuum solid-state filling device, including a vacuum chamber system, a working fluid filling mechanism, a multi-station rotating mechanism, a laser welding mechanism, and a measurement and control system. The device enables automated and batch operation of working fluid filling and pipe end sealing in a high-purity, high-vacuum environment. The multi-station rotating mechanism operates in parallel, and the laser welding technology is combined to ensure the sealing quality.

Benefits of technology

It enables automated, batch filling of easily oxidized high-temperature alloy heat pipes with solid alkali metal working fluid in a vacuum environment, eliminating the risks of oxidation and contamination, improving filling efficiency and sealing quality, and is suitable for the mass production of high-temperature heat pipes in the fields of nuclear energy and energy storage.

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Abstract

本发明属于高温热管制造技术领域,具体涉及一种高温热管真空固态充装装置和方法。本发明中,工质充装机构、多工位旋转机构置于真空舱系统内,工质充装机构用于精确计量固态碱金属工质,并将定量工质输送进热管管壳内,多工位旋转机构实现热管及其端盖轴向移动、热管及其端盖自身周向旋转、整体绕着机构中心轴线旋转,以及热管加热处理;激光焊接机构与测控系统置于真空舱系统外,测控系统与其余系统通过相应信号线缆相连接,激光焊接机构用于焊接热管管壳与端盖。本发明能够在真空环境下对易氧化高温合金高温热管进行自动化、批量化的固态碱金属工质充装和密封,适用于核能、储能中高温热管的批量化、精细化充装。
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