The main uses of spiral air duct are as follows:

（1）送风，包括通风，如新风和排风，这个范围很广，如工厂车间、生产现场的空气，由于有害气体需要排到室外，也需要将室外空气输送到室内。这时我们要用大流量小压力的空气输送管，螺旋式空气输送管比较合适，一般用镀锌铁管，尤其是有腐蚀性和潮湿的地方用不锈钢河北螺旋风管。

(1) Air supply, including ventilation, such as fresh air and exhaust, covers a wide range, such as the air in factory workshops and production sites. Because harmful gases need to be discharged outdoors, it is also necessary to transport outdoor air indoors. At this time, we need to use air conveying pipes with large flow and low pressure. Spiral air conveying pipes are more suitable. Galvanized iron pipes are generally used, especially corrosive and humid Local stainless steel spiral air duct.

（2）送冷空气。比较常见的是中yang空调管道，这种管道需要添加保温材料。螺旋风管可贴保温材料，外形美观。

(2) Supply cold air. The more common is the medium Yang air conditioning pipe, which needs to add thermal insulation material. The spiral air duct can be pasted with thermal insulation material, with beautiful appearance.

（3）餐厅、餐厅、酒店的厨房有很多油烟，需要排放，使用环形风管就是油烟筒。在这里，螺旋管应称为油烟管。

(3) There is a lot of oil fume in the kitchen of restaurants, restaurants and hotels, which needs to be discharged. The circular air duct is the oil fume drum. Here, the spiral pipe should be called the oil fume pipe.

（4）除尘。有些工厂的生产车间粉尘较多，需要专门的除尘装置。对于风量大的管道，可采用螺旋风管。

(4) Dust removal. There is a lot of dust in the production workshops of some factories, so special dust removal devices are required. Spiral air ducts can be used for pipes with large air volume.

（5）散装物料搬运。有些工厂在生产过程中，松散的颗粒需要运输，尤其是比例小的，如泡沫塑料颗粒，采用螺旋风管，成本低，效果好。

(5) bulk material handling. In some factories, loose particles need to be transported during production. Especially small proportion, such as foam plastic particles, adopts spiral air pipes, which has low cost and good effect.

螺旋风管的九个优点是：

The nine advantages of spiral duct are:

1）兼容性好，标准化程度高；

1) Good compatibility and high degree of standardization;

2）强烈的紧张；

2) Intense tension;

3）通风损失小；

3) Small ventilation loss;

4）工厂检查方便；

4) Convenient factory inspection;

5）反平衡外压（负压）程序；

5) Counter balance external pressure (negative pressure) procedure;

6）材料保存；

6) Material preservation;

7）安装成本低；

7) Low installation cost;

8）整体安装布局美观；

8) The overall installation layout is beautiful;

9）方便日常保养和清洁。

9) Convenient for daily maintenance and cleaning.

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