The ventilation duct can convey fresh air and exhaust gas, discharge harmful gas outdoors, and convey outdoor fresh air indoors. Usually, the flow of the ventilation duct system is very large, so in order to save costs, it is appropriate to use ventilation ducts with small resistance. Galvanized iron pipes are generally used, and stainless steel air ducts are used in corrosive or particularly humid places.

應用：

Application:

一、空調(diào)系統(tǒng)：通風管道可貼保溫材料，表面美觀。

1、 Air conditioning system: the ventilation pipe can be pasted with thermal insulation materials, and the surface is beautiful.

二、排煙系統(tǒng)：酒店、餐廳、酒店廚房多產(chǎn)生油煙，需求排出，宜采用通風管道，強度好，經(jīng)濟實用。

2、 Smoke exhaust system: The hotel, dining room and hotel kitchen often produce lampblack, which needs to be discharged. Therefore, it is advisable to use ventilation ducts with good strength and economy.

三、除塵系統(tǒng)：除塵裝置的收集和運輸，可以運用通風管道。

3、 Dust removal system: ventilation pipe can be used for collection and transportation of dust removal device.

四、散裝運輸：空氣運輸系統(tǒng)的種類、幾種細小松散的材料粒子，可采用通風管道運輸，成本低，效果好。

4、 Bulk transportation: the type of air transportation system and several small and loose material particles can be transported by ventilation pipes, with low cost and good effect.

注意事項：

matters needing attention:

沈陽通風管道

Shenyang ventilation pipeline

地下室通風方式合理設置排風管和排風口，用于普通排風，火災時兼作排煙管道和排煙口。地下一層考慮到來自車道的自然吸氣，其他樓層的普通送風系統(tǒng)兼作火災時的補風系統(tǒng)。避免管道內(nèi)的空氣熱損失，同時妨礙熱量向房間內(nèi)散熱，使室溫上升，不要接觸風道造成燙著。

The ventilation mode of the basement shall be reasonably equipped with exhaust pipes and air outlets for ordinary ventilation, and shall also serve as smoke exhaust pipes and outlets in case of fire. The natural air intake from the driveway is considered in the basement, and the ordinary air supply system of other floors is also used as the air supplement system in case of fire. Avoid the air heat loss in the pipeline, and prevent the heat from radiating to the room, so that the room temperature rises. Do not touch the air duct to cause scalding.

房屋在建造初期設計各管道的位置，裝通風管道將保障人們的生活質(zhì)量，但時間一長，就會生銹，產(chǎn)生老化的表象，所以高層建筑的管理者也要經(jīng)常整理管道，注意延長運用壽命。某些特殊的通風管道：可能會選擇防銹涂料進行防銹保護，但在使用涂料時，須將配管整理干凈，均勻涂抹涂料進行防銹。

In the early stage of building, the location of each pipe shall be designed, and the installation of ventilation pipes will ensure the quality of people's life. However, as time goes on, it will rust and produce the appearance of aging. Therefore, the managers of high-rise buildings should also regularly sort out the pipes and pay attention to extending the service life. Some special ventilation pipes: antirust coating may be selected for antirust protection, but when coating is used, the piping must be cleaned and evenly coated for antirust.