The letdown back-pressure regulating valve maintains pressure in the section of letdown upstream or the letdown heat exchanger to prevent the letdown liquidflashing to steam.
下泄背压控制阀维持下泄流上游段或下泄热交换器处的压力，防止压力过低引起流体汽化。
2
The flashing losses of liquid oxygen is decreased by modifying liquid oxygen flowing paths, thus improving the economic bene fits.
通过改进液氧的流路，降低了液氧闪蒸损失，提高了经济效益。
3
The control schemes for the solvent heat exchange section include the single-loop fixed value control for the pressure in the flashing tank and that for the liquid level of the flashing tank.