旋风管是用金属带料卷制成螺旋形咬缝的薄壁管，圆形，无焊接，不漏气，不漏水，多用于送风和散装物料输送，代替传统的白铁管（即手工咬缝铁管）。是风管的一种，全机制，直管无需手工敲打。其主要用途如下：(1) 送风，包括通气，如送鲜风和排气，这个范围较广，如工厂车间，生产场地空气，由于有害气体产生需要排出室外，又需要把室外空气输送至室内。这时就要使用流量大而压力小的空气输送管道，螺旋风管就比较适用，一般情况下使用镀锌铁管，有腐蚀性及特别潮湿场所使用不锈钢管。(2) 送冷风。常见的是中央空调的管道，这种管道需要加保温材料。螺旋风管可内贴保温材料，外表看来美观。(3) 排油烟。饭店、酒楼、宾馆的厨房均有大量油烟产生，需要排出，使用圆形的风管就是油烟囱。在这里，螺旋风管该叫做油烟管。(4) 除尘。有些工厂生产车间很多尘埃，需要专门的除尘装置，流量较大的管道，可使用螺旋风管。(5) 散装物料输送。有些工厂的生产过程中，需要输送松散的颗粒，特别是比重不大的如发泡塑料粒之类的使用螺旋风管造价低、效果好。
The whirlwind pipe is a thin-walled tube made of spiral bite seam with metal tape, round, no welding, no air leakage, no water leakage, more used for air supply and bulk material transportation, instead of the traditional white iron pipe (that is, hand bite iron pipe). It is a kind of air duct, full mechanism, straight pipe without manual knocking. Its main uses are as follows: (1) air supply, including ventilation, such as fresh air and exhaust, such a wide range, such as factory workshop, production site air, due to harmful gas production needs to discharge outdoor, and the need to transport outdoor air to the room. At this time, the use of large flow and pressure small air transportation pipeline, the spiral pipe is more applicable, in general, the use of galvanized iron pipe, corrosive and special wet places to use stainless steel pipe. (2) send a cold wind. The central air-conditioning pipe is often used. This kind of pipeline needs to add thermal insulation materials. The spiral duct can be attached with thermal insulation material and looks beautiful. (3) exhaust fume. There are a lot of fumes in restaurants, restaurants and hotel kitchens, which need to be discharged. The circular duct is the chimney. Here, the spiral wind pipe should be called the oil smoke tube. (4) dust removal. Some factories have a lot of dust in their workshops, and special dust removal devices are needed. (5) bulk material delivery. In the production process of some factories, it is necessary to transport loose particles, especially the small proportion, such as foam plastic particles, such as the use of spiral pipes, low cost, good effect.
