Time: 2022-05-25 Views: 1879 times
First, note when restarting:
1, the air compressor should slowly increase the pressure to prevent a sudden rise in pressure。
2. If the regenerated molecular sieve adsorber has been blown and is about to end, you can manually switch to using the regenerated molecular sieve adsorber。
3. When the regeneration system of the molecular sieve adsorber is adjusted to normal process conditions, and the moisture of the molecular sieve analysis point is less than 1PPm, the air is slowly introduced into the air separation tower。
2. Operation when power supply is restored;
1. Check and confirm the valve switch status of the equipment with interlocking shutdown。
2. Check and confirm the alarm chain items of the air separation device。Re-check and confirm the chain control of power failure。
3. Start the molecular sieve adsorber according to the procedures。Continue to complete the process before the shutdown。If the downtime is long (more than 24h), the molecular sieve adsorber should be cycled for one cycle。
4, according to the length of the shutdown time, the hot end temperature of the main heat exchanger and the main cold liquid level, according to the rules to determine the starting steps of the air separation equipment, and then start。