Overview of traditional range hoods

The traditional range hoods are all ceiling-mounted designs, and the installation height is generally about 700mm, while the fan power of its mainstream models is mostly between 200250W, so the effective suction radius is about 400mm, so the pot surface is completely in its Outside the suction range of the fan, the oil smoke will naturally spread around when it is generated from the pot surface. If you want to pump cleanly, from the principle of aerodynamics, it only has to lower the height and let the effective radius of suction cover the surface of the pot. Naturally, 99 percent of the suction effect can be achieved, but this is obviously impossible. After cooking, it is not difficult to find after careful analysis that this ceiling design is the root cause of the uncleanness of traditional hoods.

Traditional range hoods use oil filters in terms of oil fume filtration. There are one layer, two layers or multiple layers, and the filter holes are square, diamond, round, etc. The purpose is to hope that the oil fume will be blocked by the filter screen, but from the use of so many years, the effect of this solution is very poor. Even if the filter is as small as {{0}}.01 square centimeters, 37 percent of the fumes cannot be blocked. The filter holes of most hoods on the market are about 0.04 square centimeters, so they are almost discharged directly. The result is that the inner wall of the hood is polluted. This causes a large amount of uneven oil accumulation on the impeller of the fan, and the rotation of the fan loses its dynamic balance, so the suction effect will naturally become worse and worse, and the mechanical noise will become larger and larger. In short, there is no effective purification function, which is the rapid decline of the efficiency of traditional hoods. The third: due to the defects of its ceiling design and the lack of effective purification methods, in order to ensure the short-term suction effect, its power is generally high (mainstream models are all Between 200W and 250W), it is obviously very power-hungry.

Because there is no effective purification method, a large amount of oil is accumulated in the fan and the machine cavity, which is very difficult to clean. Generally, professionals are required to complete it. Sometimes the effect is worse after cleaning, which is time-consuming and labor-intensive.