Research On The Plate Kitchen Fume Purification

Kitchen fume pollution has become one of the three major pollution problems in large and medium-sized cities. The Hazards of kitchen fumes include detriment impacts upon the sanitation of circumstances and visual health brought by viscous oil materials which are more volatile, the organic compound materials for secondary air pollution, and a wide range of chemical components with lung toxicity, immune toxicity, carcinogenicity and reproductive toxicity, which have severe effects on the human body.Current domestic and international research on kitchen fumes and existing fume purifying methods is reviewed in this paper. The defects of available purification practice are analyzed, a new design of kitchen fume purifying plate is proposed from the perspective of the Molecular Collision Theory and the characteristics of cooking fumes, and the theoretical removal efficiency of the plate is calculated in accordance with the Molecular Collision Theory. Based on this, a purification efficiency test platform for the kitchen fume plate purifier is built according to Trial Technology Requirements for Cooking Fume Purifying Equipment in Catering Industry and Specifications for Monitoring Technology, a test is designed within the limits of laboratory conditions and testing equipment. The impact of the wind speed inside the plate, the length and plate spacing of the purifier on kitchen fume removal efficiency is studied, for the purpose of testing the clean-plate purification theory, laying a solid laboratory research foundation for the actual effects of the theory in treating kitchen fumes, and providing a theoretical basis and experimental data for the kitchen fume purification process. Constrained by the duration of the test and laboratory conditions, this study is confined to the following work:(1) Build a purification efficiency test platform for the kitchen fume plate purifier according to Trial Technology Requirements for Cooking Fume Purifying Equipment in Catering Industry and Specifications for Monitoring Technology;(2) Choose the weight and ultraviolet spectrophotometry to detect the concentration of kitchen fumes, determine the standard wavelength in UV spectrophotometry, and produce the standard curve;(3) Test the impact of the wind speed inside the plate, the length and plate spacing of the purifier on kitchen fume removal efficiency;(4) Explain the difference between the calculated and measured kitchen fume removal efficiency values of the plate cleaner. The experimental results show that the wind speed inside the plate, the length and plate spacing of the purifier and several other parameters do have impact on kitchen fume removal efficiency.