通风空调系统中常用的通风管道都有哪些？他们有什么独特性能？日前，网友#陈永宜#给冷菌留言询问关于管道材料方面的问题，今天我们就详细去了解一下吧！
What are the common ventilation ducts in the ventilation and air conditioning system? What are their unique features? Recently, netizen \chenyongyi \!
一、铁皮风管
1、 Iron sheet air duct
1、铁皮风管优点
1. Advantages of iron sheet air duct
1)强度高，能承受3000Pa的风压，可满足高中低压风系统的使用。
1) It has high strength and can bear the wind pressure of 3000pa, which can meet the use of high, medium and low pressure air systems.
2)可现场加工，运输成本低，调整方便，不影响工期。
2) It can be processed on site, with low transportation cost, convenient adjustment and no impact on the construction period.
2、铁皮风管缺点
2. Defects of iron sheet air duct
1)易生锈，使用寿命不长，不利于提高室内空气品质，在潮湿的环境下，使用寿命只有5-7年，而且过4-5年去看风管内部到处是锈迹斑斑。
1) It is easy to rust, and its service life is not long, which is not conducive to improving indoor air quality. In a humid environment, its service life is only 5-7 years, and after 4-5 years, there are rust spots inside the air duct.
2)漏风率高，能耗大。铁皮风管由咬口及法兰连接，其漏风率在10%左右（国家标准允许）。
2) High air leakage rate and large energy consumption. The iron sheet air duct is connected by undercut and flange, and its air leakage rate is about 10% (allowed by national standards).
3)通风噪声大。铁皮风管壁薄，在风速和风压的作用下会产生噪声。
3) High ventilation noise. The iron sheet air duct has a thin wall, which will produce noise under the action of wind speed and pressure.
4)重量大，增加建筑物荷载。铁皮风管每平方米重量在10kg以上。
4) Heavy weight increases the load of the building. The iron sheet air duct weighs more than 10kg per square meter.
5)导热系数高。铁皮风管采用外保温，外保温增加了工程造价，影响了施工工期。如果外保温不到位或受到破损，就会产生冷桥。冷凝水破坏吊顶，会损坏下面的物件。
5) High thermal conductivity. The iron sheet air duct adopts external insulation, which increases the project cost and affects the construction period. If the external insulation is not in place or damaged, a cold bridge will occur. Condensate damages the ceiling and will damage the objects below.
6)制作安装周期长。铁皮风管要采用大型的机械施工，要做咬口和法兰，速度慢。
6) Long manufacturing and installation cycle. The iron sheet air duct shall be constructed by large-scale machinery, with undercut and flange, and the speed is slow.
7)维护成本高。铁皮风管经常要维护，进行防锈处理。
7) High maintenance costs. The iron sheet air duct shall be maintained frequently and treated with rust prevention.
8)不美观。铁皮风管外保温后不平整、不美观。
8) Unsightly. The iron sheet air duct is uneven and unsightly after external insulation.
9)占用吊顶空间。铁皮风管加上法兰高度和保温材料厚度占用了不小的吊顶空间（一般在40-60mm）。
9) Occupy ceiling space. The iron sheet air duct, together with the height of the flange and the thickness of the thermal insulation material, occupies a large ceiling space (generally 40-60mm).
二、铝箔复合玻纤风管
2、 Aluminum foil composite glass fiber air duct
铝箔复合玻纤风管直接用铁皮风管的保温材料-超细玻璃棉制作而成。1992年就有风管（玻纤风管）进入国内市场，虽然经过了十多年的市场运作，但目前市场份额仍然相当小，甚至有份额萎缩的趋势。
Aluminum foil composite glass fiber air duct is directly made of ultra-fine glass wool, the thermal insulation material of iron sheet air duct. In 1992, the air duct (glass fiber air duct) entered the domestic market. Although it has been operated for more than ten years, its market share is still quite small, and even has the trend of shrinking.
1、铝箔复合玻纤风管优点
1. Advantages of aluminum foil composite glass fiber duct
1)吸声。因其直接用超细玻璃棉制作，材质比较松散，有较好的吸声性能。
1) Sound absorption. Because it is directly made of superfine glass wool, the material is relatively loose and has good sound absorption performance.
2)重量轻。每平方米重量3kg左右。
2) Light weight. The weight per square meter is about 3kg.
2、但与铁皮风管相比缺点也很多
2. However, compared with iron sheet air duct, it also has many disadvantages
1)强度差。因直接用超细玻璃棉制作，承压能力差，只能在低压、小风管使用。成品保护要求高，容易被后期的水电和装修工程弄破。不能清洗。
1) Strength difference. Because it is directly made of ultra-fine glass wool, it has poor pressure bearing capacity and can only be used in low-pressure and small air ducts. The finished products have high requirements for protection and are easy to be damaged by later water and electricity and decoration projects. Cannot be cleaned.
2)怕潮湿。超细玻璃棉的吸水率高，如果表面封闭不到位，特别是在开槽后，会吸收大量的水分，降低保温性能和强度。
2) Fear of humidity. Ultra fine glass wool has high water absorption. If the surface is not sealed in place, especially after slotting, it will absorb a lot of water and reduce the thermal insulation performance and strength.
3)纤维易飞散。超细玻璃棉如果表面封闭不到位，特别是在开槽后，会导致纤维飞散，影响人体健康。
3) Fibers are apt to fly away. If the surface of superfine glass wool is not sealed in place, especially after slotting, the fiber will fly away and affect human health.
4)风阻大。表面粗糙度达0.9-1.1mm，一般要求机组功率提高10%，增加能耗。
4) High wind resistance. The surface roughness reaches 0.9-1.1mm. Generally, the unit power is required to be increased by 10% to increase energy consumption.
The above is a detailed introduction about Jinan ventilation duct. I hope it will help you If you have any questions, please contact us We will provide you with professional service http://www.jntfgd.com
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