The utility model relates to the technical field of
fire damper installation, in particular to a
fire damper structure at a hospital firewall, which comprises a floor, the top of the floor is fixedly connected with a non-combustible material for heat preservation, the bottom of the floor is fixedly connected with a hanging bracket, the bottom of the hanging bracket is fixedly connected with an air
pipe, the bottom of the floor is fixedly connected with a fixing ring, and the air
pipe extends into the fixing ring.
Cement mortar is fixedly connected between the fixing ring and the air
pipe, a through-wall pipe is fixedly connected to the side face of the air pipe, the side end of the through-wall pipe extends into the fixing ring, a fireproof valve is installed in the air pipe, and an access door is movably connected to the bottom of the air pipe; the air pipe and the fixing ring can be sealed together through sealing of
cement mortar, the installation quality of the air pipe is improved, meanwhile, when the interior of the air pipe is damaged, the air pipe can be overhauled through the inspection opening and the access door, heat preservation of the air pipe and
flame retardance of the air pipe can be achieved through the arranged non-combustible material for heat preservation, and the service life of the air pipe is prolonged. And the protection effect on the air pipe is improved.