Technical features of pressurized sealing system of rotary air preheater

Technical characteristics:

1. A pressurized sealing system suitable for a rotary air preheater, the rotary air preheater comprising a rotor and a sealing plate arranged on the outer side of the rotor, characterized in that: the adding The pressure-sealing system includes a pipeline, a pressure-increasing component arranged on the pipeline, a groove is formed on the side of the sealing plate facing the rotor, and one end of the pipeline is connected to the rotary air The inlet flue of the heat exchanger is communicated, and the other end is communicated with the groove. 2. The pressurized sealing system suitable for a rotary air preheater according to claim 1, wherein the sealing plate comprises a radial sealing plate arranged on the radial surface of the rotor, An axial sealing plate arranged on the axial surface of the rotor, the radial sealing plate and the axial sealing plate are both provided with the groove, and the other end of the pipe is connected with a plurality of branch pipes , The pipe is communicated with the groove on the radial sealing plate and the axial sealing plate through the branch pipe. 3. The pressurized sealing system suitable for a rotary air preheater according to claim 2, wherein the groove on the radial sealing plate extends along the radial direction of the rotor, The groove on the axial sealing plate extends along the axial direction of the rotor. 4. The pressurized sealing system suitable for a rotary air preheater according to claim 1, wherein the groove on the sealing plate includes a first groove and a second groove, and the first groove Located in the middle of the sealing plate, the second groove is closer to the flue gas side passage of the rotor than the first groove. 5. The pressurized sealing system suitable for rotary air preheaters according to claim 1, characterized in that: the pressurized sealing system further comprises a sealing bellows, and the sealing bellows is arranged on the sealing bellows. The side of the plate facing away from the rotor, and the pipe is communicated with the groove through the sealing bellows. 6. The pressurized sealing system suitable for rotary air preheaters according to claim 5, characterized in that: the other end of the pipe is connected with a plurality of branch pipes, and each branch pipe passes through the The sealing bellows is communicated with the groove. 7. The pressurized sealing system suitable for rotary air preheaters according to claim 1, characterized in that: the sealing system further comprises an entrance regulating door, and the entrance regulating door is located in the pressurizing Between the component and the inlet flue of the rotary air preheater. 8. The pressurized sealing system suitable for a rotary air preheater according to claim 1, wherein there is a gap between the sealing plate and the rotor, and a seal is provided on the rotor. The height of the sealing element is not greater than the height of the gap. 9. The pressurized sealing system suitable for a rotary air preheater according to claim 1, wherein the rotor has a plurality of airflow channels, and the airflow channels are arranged between adjacent airflow channels. The sealing plate is provided with the groove. 10. The pressurized sealing system suitable for a rotary air preheater according to claim 4 or 9, wherein only one pressurizing component is provided.

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