| 摘要 |
The present invention discloses a rotary gas-gas heat exchanger with an axial isolating sealed cabin (9) of a leak-free sealing system. The rotary gas-gas heat exchanger comprises: a shell (2); a rotor, which is arranged in said shell (2) and is driven to rotate with respect to said shell (2); a sealing system, which is arranged between said shell (2) and a spindle of said rotor, and divides the space between said shell (2) and the spindle of said rotor (1) into an original flue gas circulation zone and a clean flue gas circulation zone. Said sealing system comprises: a sealing system body, and isolating sealed sections (5) which are arranged in the gap between said shell (2) and an outer periphery of said rotor (1). There are four isolating sealed sections (5). Said sealing system body has two ends which are opposite with each other in the radial direction of the rotor (1). The isolating sealed sections (5) are arranged in a paired manner at both sides of each of said two ends. An intermediate region of each pair of isolating sealed sections (5) communicates with a fan. In the heat exchanger of the present invention, the air leakage rate between the original flue gas circulation zone and the clean flue gas circulation zone is only 0.1-0.4%, which surpasses the leading level in the world. |
