What considerations should be taken into account during the downscaling process?
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Explore what considerations should be taken into account during the purification process, and how to shorten the purification time?
During the purification process, every time a valve is operated, it is necessary to wait for a change in purity before proceeding to the next step
Adjust the valves in a proactive manner, with precise operation; take further action only after responding to the operating conditions.
The purification process must be carried out simultaneously with the accumulation of liquid; when the liquid is basically in normal condition, the purity level is also essentially determined. The valve should be set at roughly the same opening position as before shutdown, which will naturally ensure the desired purity. Additionally, the valve must move slowly and in a rhythmic manner
If it is a low-load operation, the liquid nitrogen throttle valve can be adjusted directly to the normal position. In the case of high-load operation, the liquid nitrogen throttle valve should be activated when the liquid level reaches 80% of the normal level. The adjustment process must be carried out slowly, and the purity of the night sky should be checked at intervals after each adjustment until it reaches around 38%