▎ 摘　　要

NOVELTY - The utility model claims an oil smoke filter system, comprising an exhaust cylinder; the head end of the exhaust cylinder is provided with a gas collecting hood, the hood is located above the cooking range; the tail end of the exhaust tube is external wall discharge end; the exhaust tube of the skirt and the outer wall discharge end is orderly provided with an oil through membrane device, oil-smoke separator, modified composite membrane device and the fan, the oil film in the device of the oil film is composed of fibre glass micro-filter film, polytetrafluoroethylene film and polyether sulfone orderly along the lampblack exhausting direction is overlapped in layers; modified composite film modified in the composite film-forming device is comprised of polycarbonate film, graphene oxide-filter membrane, bacterial membrane and multi-wall carbon nano-tube along smoke discharging direction are layered overlapped; the ventilation rate of the oil film and the modified composite film are not less than 30%. oil smoke filtering system claimed by the utility model, the smoke removing efficiency can reach 99.6%, it can be discharged directly, which avoids the cleaning and maintenance of the exhaust system.