First, the kitchen smoke exhaust pipe installation frequently asked questions
The kitchen exhaust pipe is like the stomach of the whole exhaust system. If the design and installation are unreasonable, it will often lead to poor smoke exhaust and unsatisfactory fume purification effect.
1. Ventilation area of main exhaust pipe
There are main and auxiliary smoke exhaust pipes, the main flue runs through the whole building, and the auxiliary flue is relatively independent. According to some experienced masters, the wind speed of the main flue of the smoke exhaust pipeline is controlled within 15m/s, but in most cases when the kitchen smoke exhaust pipeline is installed, due to the insufficient ventilation area of the main flue, the wind speed in the pipe is above 15m/s, and the smoke is not smooth.
2. Ventilation cross-sectional area of pipeline
Usually, when the kitchen smoke exhaust pipeline is installed, because the pipeline passes through the building beam, the ventilation cross-sectional area of the pipeline becomes smaller, which leads to poor airflow in the pipeline.
3. Debris accumulated in the exhaust pipe
When the kitchen smoke exhaust pipeline is installed, one section of the pipeline will be lower than the whole smoke exhaust pipeline because it needs to pass through the building beam or avoid the pipeline of other equipment, which will make the oil-water mixture or other sundries more likely to accumulate in the front and lower sections of the pipeline, resulting in flue blockage.
4. Poor smoke at low altitude
Because the kitchens in commercial places are mainly located on the first floor, and the kitchen fumes from different floors are discharged through the same main pipe, the kitchen on the floor near the exit will have a better smoke exhaust effect, while the kitchen on the lower floor will have a relatively poor smoke exhaust effect.
Second, the kitchen smoke exhaust pipe installation content
Select the installation location. Whether the installation location of kitchen smoke exhaust pipeline is good or not depends on the length of the pipeline. If it is the installation of smoke exhaust pipes in domestic kitchens, some owners will let the master pull the pipes very long for the sake of beauty. In fact, in this way, it is easy to keep the fumes in the pipeline from being discharged.
2. Install the ventilation pipe. When installing ventilation pipes, first find the elevation, drill holes in the wall with an electric drill, cooperate with the reserved bracket holes, and bury the hanger; Level and align the assembled air duct, and then fix it with fastening bolts. If ventilation and smoke exhaust pipes are installed, they should be separated. The ventilation direction and location of the two are different. The air quality of the former is better than that of the latter, so the same pipe cannot be used. Generally, there are two kinds of ventilation pipes: circular and rectangular. In the case of circular pipes, the average diameter will be used.
Although the installation of kitchen smoke exhaust pipes is basically operated by professionals, it is harmless to know the relevant knowledge before supervision. For example, the installation length of the kitchen smoke exhaust pipe mentioned above is generally less than 15m, and the slope is more than 2%. The person in charge knows this knowledge, which is helpful to reconfirm on site and reduce the possibility of problems in the later stage.