There are special requirements for the design of dining room ventilation. Special norms are explained by the high level of humidity and temperature, the presence in the air of impurities from detergents used when washing dishes. Ventilation provides not only comfort for employees, but also safety, because the abundance of oils and fats, coupled with high air temperatures, create a fire hazardous environment. Therefore, it is necessary to calculate the ventilation of the canteen system inflow - outflow.
Dishwasher ventilation in the dining room
In a dishwasher, very humid air, which, penetrating into colder rooms, provokes the formation of condensation, including detergents. In this regard, galvanized air ducts quickly fail. The ventilation project for the dining room provides for the use of stainless steel or aluminum pipes, which are mounted on an area of 7 meters from the hood.
Ventilation of the brewhouse in the dining room
A lot of heat, grease and sometimes soot are generated here. Therefore, it is necessary to include a powerful hood in the ventilation project of the dining room. An important point in the design of dining room ventilation is the shape and size of the hood. As a rule, it is not chosen by specialists in this field, therefore, the efficiency of the hood can be reduced.
Since the air ducts in the dining room can be very hot, they should be insulated from walls and flammable surfaces.
When designing the ventilation of canteens in the workplaces of personnel, mobile spraying installations are installed, evaporating the smallest droplets of water and enhancing the effect of ventilation.
To prevent hot air and steam from entering the visitors' room from the brewhouse, the ventilation system in the dining room is equipped with air curtains without changing the air temperature. In some cases, air pressure is created in the dining room. For this, the power of the air flow entering the hall is set higher than the power of the air removed from the room. This creates excess pressure to prevent the spread of kitchen odors into the dining area.
Features of the dining room ventilation system
When calculating ventilation in the dining room, it is necessary to take into account the need to keep the systems clean. For this, the ventilation system in the dining room is equipped with additional filters, as well as:
- Grease separators;
- Drainage fixtures;
- Viewing windows to check the cleanliness of the air ducts;
- All flange gaskets are made of non-grease-absorbing materials;
- Duct walls should be easy to clean and free from ribs.
