论文部分内容阅读
低温液体输送的一个主要问题是管路接头的密封。在长期连续输送的场合,管路及其接头通常都需要绝热,固定管路的接头一般不容易发生泄漏故障。在短期输送时,例如在两个杜瓦容器之间转注低温液体,管路接头要经常连接和拆卸,这种管路接头应便于操作,安全可靠。现用的低温管路接头都要用搬手或其他工具才能进行连接和拆卸,操作使用不便。典型的低温管路接头通常都采用结构复杂的复式密封,使用波纹管或其他补偿另件,所用的密
A major problem with cryogenic liquid delivery is the sealing of the pipe connections. In long-term continuous delivery of the occasion, the pipeline and its joints are usually required insulation, fixed pipeline joints are generally not prone to leakage failure. In the case of short-term transport, eg transfer of cryogenic liquid between two Dewar vessels, the plumbing connections shall be connected and disassembled frequently, and the plumbing connections shall be easy and safe to operate. Current low-temperature pipe joints are to be used to move or other tools to connect and disassemble, the use of inconvenience. Typical low-temperature pipe joints are usually complex double-sealed structure, the use of bellows or other compensation components, the use of the secret