Silencing air pressure relief system

The invention discloses a silencing air pressure relieving system in the technical field of air pressure relieving devices. The silencing air pressure relieving system comprises a silencing pipe, one end of the silencing pipe is connected with an expanding pipe, one end of the expanding pipe is connected with an air inlet pipe, a plurality of silencing plates are fixedly connected into the silencing pipe, and middle holes are formed in the middles of the silencing plates. High-speed air flow is guided into the expanded pipe through the air inlet pipe, the expanded pipe expands the volume, then the air flow speed is slowed down, air flow noise is reduced, when air enters the silencing pipe, the air flow disturbs and slows down among the multiple silencing plates, sound is absorbed, noise is reduced, the multiple silencing holes in the multiple silencing plates are used for further silencing, and the silencing effect is improved. The first connecting plate and the second connecting plate are supported and insta