What types of exhaust hoods are there?

The exhaust hood plays a very important role in the kitchen exhaust ventilation system. If it is designed reasonably and installed in accordance with the specifications, the best control effect can be obtained with a smaller exhaust volume, and high efficiency can be achieved, which can greatly reduce the operating costs. The exhaust hood can be divided into five types. Let's take a look at the five types with SHINELONG editor! Analysis of the types and principles of exhaust hoods 1) All closed pollution sources are enclosed in the hood. Its advantages are small exhaust volume, which can effectively control harmful substances and is not affected by ambient airflow, but it affects the operation. It is important for occasions with high control requirements to eliminate gases or smoke that are more harmful. It is widely used in automated production equipment in food factories or central kitchens. Automatic continuous electric fryers and automatic continuous baking equipment exhaust smoke inside closed production lines. 2) Cabinet exhaust hoods The cabinet exhaust hood has one side open for manual operation, and the other sides are closed. The open side maintains a certain suction speed to ensure that harmful substances in the cabinet do not overflow. It is mainly used for ventilation of polluted gases such as chemical experimental workbenches. 3) External suction hood The external suction hood is located near the smoke source, and the smoke is sucked into the hood by the suction effect of the hood mouth. It has little impact on production operations and is easy to install and maintain, but it increases the suction of surrounding air, has a large exhaust volume, reduces efficiency, and has a relatively poor effect on controlling harmful substances. It is mainly used in occasions where the pollution source cannot be sealed due to process or operating conditions. External suction hoods include side suction hoods, lower suction hoods, etc. 4) Receiving exhaust hood The hood of the receiving exhaust hood is directly facing the direction of movement of the smoke flow, aligning with the direction of movement of the pollution source to control the diffusion of smoke. The kitchen bucket-type hanging exhaust hood is to accept naturally lifted smoke. 5) Blowing and suction exhaust hood The blowing and suction exhaust hood is composed of a suction hood and an exhaust airflow. It has strong resistance to external airflow disturbances, good control effects, and does not affect process operations, but requires the addition of a blowing duct structure. It is mainly used to improve the exhaust effect, or for occasions where it is difficult to control smoke by suction alone due to environmental conditions, the suction hood is far away from the smoke source or there is airflow disturbance nearby. The above is only a simple classification based on the structure of the exhaust hood. According to the position relationship between the exhaust hood and the waste source, the kitchen exhaust hood can also be divided into upper suction type, side suction type, and lower suction type. In summary: the five types of exhaust hoods shared by the SHINELONG editor, I believe that everyone has a certain understanding of the exhaust hood, and choosing the one that suits you is the best. Today's sharing stops here! If you want to know more related information, pay attention to the SHINELONG official website, and the editor will share information with you from time to time.