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The restaurant kitchen exhausts smoke. Can it be discharged into underground pipes?

No, because the specific gravity of flue gas is light, it will not go down at all, but will float up. Environmental impact assessment and environmental protection bureau clearly stipulates that catering enterprises must have legal and qualified smoke exhaust pipes, and it is forbidden to remove smoke exhaust pipes through sewers.

Extended information: Precautions for kitchen smoke exhaust

Wind direction considerations Generally, when considering kitchen smoke exhaust, we should pay attention to the wind direction, and we should do a good job in the selection of exhaust outlets. You can have a basic understanding of the local wind direction, see how to install the smoke exhaust position more appropriately, and avoid problems such as oil fume backflow, which will affect your actual home comfort and hygiene.

Pipe layout

All kinds of pipes are used in kitchen smoke exhaust, so it is necessary to have a comprehensive understanding when setting the layout. Note that according to the space size and layout of the self-kitchen, the auxiliary flue should be reserved first, the main flue runs through the stairs, and the auxiliary flue generally exists independently, so there must be a clear division when setting.

location selection

location considerations should also be paid attention to when installing smoke exhaust pipes in the kitchen. In order to ensure good smoke exhaust effect, it is suggested that the pipes in the kitchen should not be too long, and the shorter the better. If the pipeline is too long, it will directly lead to the accumulation of oil smoke, which is difficult to discharge, and it will flow back indoors, which will have poor smoke exhaust effect and lead to a strong smell of oil smoke at home.

Change valves frequently

There are many matters needing attention in the installation of smoke exhaust pipes in the kitchen, such as frequent replacement of check valves, in order to have better smoke exhaust effect. In fact, the check valve is also to protect the smoke exhaust pipe, so that the smoke exhaust effect is more obvious, and users can also have better home comfort and obvious smoke exhaust effect.

Reference: Flue-Baidu Encyclopedia