螺旋风管在通风风管中占据很高的占比。在许多行业拥有广泛的运用。作为一种生产生活中普遍的风管成分，主要用于为某个较为密闭的空间通风换气的作用
Spiral duct takes up a high proportion in the ventilation duct. It is widely used in many industries. As a common air duct component in production and life, it is mainly used for ventilation in a relatively closed space
螺旋风管在通风风管中占据很高的占比。在许多行业拥有广泛的运用。作为一种生产生活中普遍的风管成分，主要用于为某个较为密闭的空间通风换气的作用，也可以用来排液或运输密度较小的轻质物品。它在不同的场合有不同的应用，对于螺旋风管经常暴露在外部环境中，容易遭受风霜雨雪的侵蚀，多采用耐腐蚀的304不锈钢螺旋风管，或者在无腐蚀性气体场景下，为控制成本预算，可加厚板材厚度如1.2/1.5/2.0等厚度，或者加厚镀锌层甚可以做内外三道漆防腐。较理想的设计还是采用304不锈钢螺旋风管。
Spiral duct takes up a high proportion in the ventilation duct. It is widely used in many industries. As a common air duct component in production and life, it is mainly used to ventilate a relatively closed space, and also can be used to discharge liquid or transport light goods with low density. It has different applications in different situations. The spiral air duct is often exposed to the external environment and is vulnerable to the erosion of wind, frost, rain and snow. The corrosion-resistant 304 stainless steel spiral air duct is mostly used, or in the non-corrosive gas scenario, in order to control the cost budget, the thickness of the plate can be thickened, such as 1.2/1.5/2.0, or the thickness of the zinc coating can be thickened, or even the internal and external three layers of paint can be used for corrosion prevention. The ideal design is 304 stainless steel spiral air duct.
螺旋风管清理方式目前主要有三种：
There are three main cleaning methods for spiral air duct:
真空吸污：用相近有手握着式的真空吸污管来实际操作。用软毛刷直接接触管路内腔以废弃物。这类方式须通风风管有很大的检修口使实际操作的工作人员可以尽量够到但这类方式很有可能跳开一部分灰尘和废弃物，由于通风风管不可以产生的负压力标准。而下列几类方式能够产生负压力标准。
Vacuum suction: use a similar hand-held vacuum suction pipe for practical operation. Use a soft brush to directly contact the inner cavity of the pipeline to eliminate waste. This kind of method must have a large access hole for the ventilation duct so that the actual operating staff can reach it as much as possible. However, this kind of method is likely to jump away from some dust and waste, because the negative pressure standard that the ventilation duct cannot produce. The following methods can generate negative pressure standards.
驱动力刷洗：用气动式或是电动式的刷子将污迹刷动，随后废弃物用和汽体清洗同样的方式和方位被吸进真空泵收集器中。这类方式规定尽量得当心不会毁坏隔热保温材料的表面。
Driving force brushing: use pneumatic or electric brush to brush the dirt, and then the waste is sucked into the vacuum pump collector in the same way and direction as the steam cleaning. This kind of method stipulates that we should be careful not to damage the surface of thermal insulation materials.
汽体清洗：这类方式依靠联接到通风风管的装有喷头的塑料软管以运输空气压缩。设计方案喷头促使空气压缩可以把灰尘和废弃物驱逐进去。而被空气压缩干好的废弃物和灰尘则沿着被传真空泵集器皿中。
Steam cleaning: This type of method relies on the plastic hose with nozzle connected to the ventilation duct to transport air for compression. The design of the nozzle enables air compression to expel dust and waste. The waste and dust compressed and dried by the air are transferred to the vacuum pump container along the way.
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