翻译活动讨论（1）？ 看到大家讨论的认真又热烈，本人也来尝试一下： liquid transfer from other vessels, tank trucks, and tank cars may be aided or accomplished entirely by pressurization of the supply vessel with a gas, but the receiving tank may counter a flow surge at the end of the transfer due to vapor breakthrough. depending on the pre-existing pressure and free head space in the receiving tank, the additional gas volume may be sufficient to overpressure the tank. the controlling case is a transfer that fills the receiving tank so that little head space remains to absorb the pressure surge. a similar situation can be encountered during line pigging if a vapor chaser is used after the pigging device. 从别的容器、汽车槽车、油罐车中输出液体时，可以辅助地采用或完全采用用气体给供液容器充压的方法实现，但是接受容器在输送结束时由于（充压）气体的涌入而受到冲击。凭借在接受罐里已有压力和顶部的自由空间，这些附加的气体体积足以使接受罐超压。控制这种情形的措施就是在充装接受罐的输送过程中，在接受罐的顶部保留一个小的空间来吸收这个压力的冲击。 类似的情形是在管线的清理过程中遇到的、在清管设备后面使用的气体驱动。查看更多
第1天
关注盖德视界
添加小助手
