How does the enamel tube air preheater realize self-protection
1. The main motor of the air preheater trips, and the auxiliary motor starts automatically;
2, air preheater guide, support bearing oil filter differential pressure ≥0.05MPa alarm;
3. The circulating temperature of the supporting bearing oil is less than 45ºC, and the supporting bearing oil pump is interlocked and stopped;
4. The circulating temperature of the guide bearing oil is less than 50ºC, and the guide bearing oil pump interlocks and stops;
5. The main motor of the air preheater on this side is running. It is forbidden to close the air preheater outlet secondary air electric door and the air preheater inlet flue gas baffle.