来源：http://writinginbold.com 日期：2021-09-16 发布人：jntfgd
The middle of the ventilation duct and the oil fume exhaust duct belong to the pipeline, but the key difference is in the main purpose. The oil fume exhaust duct is used as the pipeline to remove smoke and dust, and the key function of the ventilation duct is the exhaust and smoke exhaust system, which is common in one or several rooms or machinery and equipment. The differences between them are mainly reflected in their characteristics.
After the installation of the air duct, ensure that the surface is clean and free of other residues, and the ventilation air duct located outdoors must be snow proof, waterproof and rainproof. When crossing the regeneration deformation joint, the ventilation air duct must be added with waterproof casing according to the design scheme, and the gap between the ventilation air duct and waterproof casing must be blocked with filler carefully. What are their characteristics? How can we fully prepare for the work? The design scheme of ventilation duct system software in Shandong Province, what matters must be paid attention to in the transportation and maintenance of ventilation duct, the main purpose of ventilation duct, etc. The key functions of ventilation duct mentioned therein include natural ventilation, smoke exhaust system, transportation and other main purposes.
Shandong ventilation duct
The cross section of the sequential flue is composed of two side-by-side rectangular frame exhaust ducts, which vertically pass through the regeneration buildings. The secondary flue is provided with an air inlet connecting the range hood in each floor of the house. The secondary flue of the ventilation pipeline in Shandong Province meets with the main flue at a certain distance from the air inlet, and the main flue layer is provided with a supplementary air outlet. The basic principle is that the smoke and dust is sent into the secondary flue according to the range hood, and the oil smoke is raised for a certain distance by the driving force of the range hood and the buoyancy of the oil smoke temperature and water, and then into the main flue and discharged out of the flat roof.
It is composed of a simple rectangular frame exhaust pipe, which vertically passes through the houses on each floor of regeneration. An air inlet connected with the range hood is reserved in the houses on each floor, and an air outlet is used to supplement qi and blood. The basic principle is that each layer of smoke and dust will be discharged into the flue under the promotion of the range hood. Because of the effect of smoke and dust temperature, it will cause the buoyancy of rising water in the flue and discharge the smoke and dust from the vent out of the flat roof.