航天发射场低温容器管道设计

DESIGN OF CRYOGENIC VESSELS PIPE FOR SPACE LAUNCH SITE

低温容器管道受力复杂,同时也是容器结构薄弱部件。为确保航天发射场低温容器安全、可靠的运行,针对航天发射场低温容器使用特点,提出低温容器管道设计内容(包括结构要求,主要管道功能分析及验算,管道柔性计算及结果判定)。以DN50管道方案设计为例,运用分析软件对管道进行应力分析,从管道占用空间、管道应力值及管道对容器接管处的作用力三方面进行比较,提出增加管道柔性的措施。鉴于航天发射场低温容器管道设计的重要性和复杂性,建议采取措施,确保管道结构合理、可靠。

The forces of cryogenic vessels pipes are complicated. The pipes also are the weak parts of cryogenic ves-sel. In order to ensure the cryogenic vessels of space launching site operate safely and reliably,this paper presents the de-sign contents (including the structural requirements,the main analysis and checking on pipeline function,the flexible pipe-line computing and result determination) according to the using feature of the cryogenic vessels of space launching site. For an example of the design of a pipe with 50mm diameter,the pipe stress analysis was conducted by analysis software. It is proposed to increase the flexibility of the pipe according to the comparisons among the pipe occupation space,the pipe stress value and the force producing by the pipe to cryogenic vessel nozzles. Base on the importance and the complexity of the pipe design for the cryogenic vessels of space launching site,it is suggested to take measure to ensure the pipe struc-ture reasonable and reliable.