The steel roof ridge vent is a large-scale exhaust and smoke exhaust equipment for a steel structure industrial factory building composed of steel framework, profiled color steel plates, daylighting panels and other components. The working principle of the natural ventilation system is to use the heat generated by indoor production activities or the power generated by the temperature difference between indoor and outdoor to absorb fresh air at the low altitude of the building, and then discharge the dirty air from the vents of the ridge ventilator. 

In the field of traditional steel roof ridge vent design, roof ventilation mainly adopts two structural forms: direct conduction skylight and indirect conduction skylight. In the practical application of ridge vents, direct conduction skylight has the disadvantages of low ventilation efficiency, poor lighting and party feather effects, and insufficient appearance; although indirect conduction air towers are effective in ventilation, daylighting, rain blocking and appearance The shape has been improved, but in the structural design, the air building skeleton needs to be supported by joists, and the ventilating air building skeleton is also used as a purlin, which will make the spacing between the air building skeletons more dense, and the air building production consumables are more, The workload is large, the production cost is handed over, etc., the installation and installation of the gas tower is difficult, and the installation cycle is long.

In terms of structure, the curved gas tower optimizes the skeleton joists of the ridge ventilator in the original structure. The curved structure has better wind resistance and reduces the number of steel skeletons of the smoke vent system. The amount of steel used is greatly reduced, and the roof load is reduced. The safety performance of the plant has been greatly improved.