The function of natural ventilator is to ensure the ventilation and smoke exhaust of the plant, but for some special industries, such as metallurgy, ironmaking, electric power, glass, shipbuilding, manufacturing, machinery and other industries. The temperature of such industrial plants is high, and the ventilation performance is poor, so ventilation and smoke exhaust skylights need to be installed. What are the conditions for smoke vent roof in high-temperature and high-heat workshops?

1. Protection of the natural ventilator's frame

As the temperature of the steel plant can reach 500°C and the ventilation is not smooth, the steel structure factory building under the influence of high temperature for a long time will cause the steel to expand and contract, and the skeleton may be slightly deformed. The smoke vents are mainly composed of external protection panels, FRP daylighting panels, flooding panels, rain panels, daylighting panels, steel structure skeletons, electric opening and closing devices and other accessories. The natural roof ventilation are made of hot-dip galvanized steel sheets. It is pressed to effectively protect the frame of the ventilation, smoke, and lighting skylights.

2. Anti-rust treatment of smoke ventilation

Because the roof smoke vent is installed on the roof of the factory, they are exposed to external sunlight for a long time. The outer guards of the natural vent may be rusted. It will cause the lighting and ventilation skylights to be rusted and cause leakage problems. In order to ensure the service life of smoke vent system, anti-rust treatment is required. The hot-dip galvanized sheet on the surface of the skeleton surface is sprayed or painted with anti-corrosion treatment, which has weather resistance and appearance quality.

3. Rainproof protection of the smoke vent windows

The rainproof board of the smoke exhaust skylight of the factory mainly adopts FRP daylighting board and sunshine board. In order to protect the rainproof board, the surface of the board should be sprayed with a UV layer to prevent ultraviolet rays, which can ensure that the smoke hatch skylight has good anti-corrosion, performance, and prolong the service life of the roof fire vents.