As the saying goes, "Food is the most important thing for the people." Chinese cooking is not only technically exquisite, but also pays attention to the harmony and unity of color, aroma, taste, shape and beauty of food. There are 42 traditional Chinese cooking techniques: stir-fry, stir-fry, stir-fry, deep-fry, boil, pan-fry, paste, roast, simmer, stew, steam, braise, boil, braising, braising, mixing, pickling, roasting, baking, braising, smoking, Wind, bake, roll, smooth, simmer, blanche, rinse, roll, soup, sauce, soak, spell, freeze, buckle, drunk, bad, crispy, sweet, drawn, honey sauce, frosted, etc. Then the problem of cooking fumes in the kitchen is particularly important, affecting every household. Below we mainly analyze the working principles, pros and cons of 5 commonly used oil fume purifiers, hoping to help you choose a product that suits you.
The first mechanical oil fume purifier: main uses: kitchen low-altitude emissions, high-altitude emissions, large-scale industrial dust removal. There are three types: centrifugal type, filter type, and partition type. Principle: Oil smoke is introduced through the air inlet. Large particles, oil droplets and impurities collide with the fire protection net due to inertia and are adsorbed and filtered. This greatly reduces the concentration of oil pollution after the oil mist passes through the pretreatment section. At the same time, the pretreatment section has automatic oil separation. Function, impurities will also be intercepted, mainly used for large particles of oil pollution. Disadvantages: The effect on small particles is not obvious.
The second type of wet oil fume purifier：It mainly uses water spray to filter the oil mist in the flue gas. The water curtain is charged and in contact with the oil fume, it is adsorbed by the water droplets due to electrostatic action. Water droplets have small particles and high electrical charge, so they have a significant effect on adsorbing sub-micron oil smoke particles. The water mist charge is not the oil fume charge, and has the characteristics of low voltage and low energy consumption. Suitable for oil fume control in catering industry. Disadvantages: The circulating water system needs to be cleaned frequently, otherwise the water curtain will not form but intermittent water droplets or water columns.
The third type of photocatalytic oil fume purifier：Principle: Ultraviolet light decomposes oil fume molecules. Photolysis and oxidation oil fume purification technology uses ultraviolet light - C-band light to change the molecular chain of oil. At the same time, this ultraviolet light reacts with oxygen in the air to produce ozone. Ozone cold-burns oil molecules to generate water and ozone. At the same time, the peculiar smell in the flue is also eliminated. Disadvantages: Oil fumes are easily wrapped up after long-term use and require regular cleaning.
The fourth type of compound oil fume purifier：The composite type mainly uses electrostatic oil fume purification equipment combined with wet type or activated carbon, mechanical type, etc. Principle: The oil fume is sucked into the electrostatic oil fume purifier by the fan. The larger oil mist droplets and oil dirt particles are trapped on the guide plate due to mechanical collision. Then, after passing through the high-voltage electrostatic field, the oil fume gas is ionized and the oil mist is charged. Most of them are degraded and carbonized. The remaining tiny oil particles are collected on the polar plate under the action of the electric field force of the adsorption electric field and the air flow, and flow to the oil collection pan under its own gravity and then discharged. Finally, the micron-sized oil mist is degraded by the electric field into carbon dioxide and water and is discharged. Due to the high voltage, the air in the electric field produces ozone, which can remove odors.
The fifth type of electrostatic oil fume purifier：The electrostatic oil fume purifier uses the electrons emitted by the cathode in a high-voltage electric field and the negative ions generated by the electrons to collide with air molecules to capture the oil fume particles and charge the oil fume particles. The electric field is then used to make the charged oil fume particles adsorbed by the anode. In order to achieve the purpose of removing oil smoke. According to the shape of the electric field plate in the electrostatic oil fume purification equipment, the electrostatic type is divided into two types: honeycomb type and plate line type.
Post time: Dec-27-2023