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.

应用：

Application:

一、空调系统：通风91在线视频观看可贴保温材料，表面美观。

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

二、91影视在线污污污系统：酒店、餐厅、酒店厨房多产生油烟，需求排出，宜采用通风91在线视频观看，强度好，经济实用。

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、除尘系统：除尘装置的收集和运输，可以运用通风91在线视频观看。

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

四、散装运输：空气运输系统的种类、几种细小松散的材料粒子，可采用通风91在线视频观看运输，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.

注意事项：

matters needing attention:

沈阳通风91在线视频观看

Shenyang ventilation pipeline

地下室通风方式合理设置排风管和排风口，用于普通排风，火灾时兼作91影视在线污污污91在线视频观看和91影视在线污污污口。地下一层考虑到来自车道的自然吸气，其他楼层的普通送风系统兼作火灾时的补风系统。避免91在线视频观看内的空气热损失，同时妨碍热量向房间内散热，使室温上升，不要接触风道造成烫着。

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.

房屋在建造初期设计各91在线视频观看的位置，装通风91在线视频观看将保障人们的生活质量，但时间一长，就会生锈，产生老化的表象，所以高层建筑的管理者也要经常整理91在线视频观看，注意延长运用寿命。某些特殊的通风91在线视频观看：可能会选择防锈涂料进行防锈保护，但在使用涂料时，须将配管整理干净，均匀涂抹涂料进行防锈。

In the early stage of building, the locations 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.