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Kitchen smoke exhaust equipment
During the construction of the main structure, holes for the ventilation flue should be reserved according to the location of the design drawings. The size of the holes should be larger than the peripheral dimensions of the components~
. The steel bars in the reserved holes should also be reserved.
Before installation, according to the size of the ventilation flue, hang a vertical line from the top hole to ensure the verticality of the flue installation.
When installing the first floor, first use cement mortar to level the ground. After the first section of the pipe seat is slurred, pour about 10 meters of concrete into the pipe and wait until the concrete has finally set
before installing the upper ventilation flue.
First, place the lower opening of the connector on the upper part of the lower flue partition, and the four sides should also be seated and sealed. The ventilation flue must be supported in layers. Construction practices
After the upper and lower pipes are aligned and seated, the interface of the upper and lower ventilation flues is generally located at the floor, so the steel plates are welded to the embedded steel plates at the root of the pipes and the reserved steel bars are welded to the holes
and supported at On the floor base.
The joint surfaces of the upper and lower sections of the ventilation flue should be coated with polymer cement slurry (glue cement). The joints between the ventilation flue and the floor slab should be roughened in advance
After cleaning, the formwork should be set up and covered with fine stones. Micro-expansion concrete filling.
The concrete surface at the joint should be about lower than the floor surface. After filling the concrete, water is stored on the surface of the concrete for curing.
After cleaning the feet of the ventilation flue, apply two thick coats of polyurethane waterproof coating or pound a steel bar around the feet of the ventilation flue
Apply mud mortar to the concrete water-blocking base surface and smooth it. The water-based surface plastering should be completed before the cement sand facing layer on the floor. The steel bars need to be reserved when the fine stone concrete is pounded and sealed.
Before plastering or finishing, a net should be hung all around the ventilation flue.
For the joint of the ventilation flue between the two floors, the joint surface of the upper and lower ventilation flues should be coated with polymer cement slurry, and then the exposed part of the joint should be wrapped with
galvanized steel mesh and used The steel bars weld the embedded steel plates of the upper and lower pipes.
After the ventilation flue is installed on the roof, the anti-backflow hoods required for different series of products should be installed according to the design requirements.