Manufacturing method of pressurized sealing system suitable for rotary air preheater

The utility model relates to a pressurized sealing system suitable for a rotary air preheater. The rotary air preheater includes a rotor and a sealing plate arranged on the outer side of the rotor. For the supercharging component, a groove is provided on the side of the sealing plate facing the rotor, one end of the pipe is connected with the inlet flue of the rotary air preheater, and the other end is connected with the groove. The pressurized sealing system of the utility model slots on the sealing plate and introduces pressurized flue gas to form an air curtain between the sealing plate and the rotor, which will not produce serious mechanical contact friction and will not cause the air preheater to drive The current increases, and the system runs stably. While improving the sealing performance, it reduces the wear and fall of the sealing device. The air preheater leakage rate can be ensured to maintain a relatively stable state during the entire operating cycle. The system has high reliability and reduces the maintenance of the unit. cost. Repair and maintenance costs. Repair and maintenance costs.

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