how to calculate the air volume of the oil fume purifier

what is a fume purifier

oil fume purifier is a device that can separate and adsorb harmful gases and particulate matter in oil fume through certain technical means to purify the air. it is widely used in restaurants, restaurants, kitchens and other places where food processing is required. it can not only reduce the indoor fume concentration and ensure the clean air in the room, but also maintain the hygiene of food and improve production efficiency. the oil fume purifier generally includes three parts: a filtration system, an information transmission system and a storage system.

how to calculate air volume of oil fume purifier

the air volume calculation methods of oil fume purifiers generally include volume method, layer method, cigarette butt area method and wind tunnel method. the volumetric method is often used in simplified chimney exhaust units. according to the theoretical principle of gas thermodynamics, the flue resistance coefficient is first calculated based on the ratio of the area of ​​the exhaust port and the cross-sectional area of ​​the chimney, and then the friction resistance and resistance loss of the pipe are calculated based on parameters such as the length of the flue and the diameter of the pipe. this method is relatively simple, but there are few factors to consider, so the results are not accurate enough.

layer number method and cigarette butt area method

the number of layers is a method of calculating the air volume of the oil fume purifier using the principle of layer-by-layer superposition of pipelines. it mainly includes two forms: static method and dynamic method. among them, static method requires the area of ​​each part of the pipeline, the length of the pipeline, the operating status of the fan, and other parameters, which are suitable for places with relatively stable process flow. the dynamic law directly detects flow by placing a series of inclined pipe pieces on the pipe. the cigarette butt area method calculates the average wind speed of the cigarette butt through the cross-sectional area of ​​the cigarette butt and the flow rate of the flue, and then calculates the air volume of the oil fume purifier through data transformation.

the application of wind tunnel method

the wind tunnel method is the most advanced method of calculating air volume of oil fume purifiers. this method uses the gas after entering the wind tunnel to be blocked by a series of slits and measured by measuring devices, thereby obtaining parameters such as gas flow rate, air pressure and temperature in the wind tunnel, and then calculates the air volume of the fume purifier through the formula. since the sensor technology used in the wind tunnel method is relatively advanced, it can solve various problems in gas flow well, and the final results are also relatively accurate.

summarize

the air volume of the oil fume purifier is an important indicator to ensure the purification effect. in the actual production process, we can choose different air volume calculation methods according to the specific situation to ensure the accuracy and reliability of the calculation results. at the same time, in order to maintain the normal operation of the oil fume purifier, we also need to regularly maintain and clean it, and replace the high-efficiency filter inside the oil fume purifier in time to improve purification efficiency.