专注通风管道加工·排烟罩

1. Colored steel fiberglass composite pipe with seamless processing technology.

内管无缝加工

Seamless processing of inner tube

内管无缝加工工艺，采用一次性成型工艺，整个内管为一个整体，无胶水粘合，不会产生胶水、玻纤脱落现像，整体防火等级达到不燃A1级，可适用于防排烟系统。

The seamless processing process of the inner tube adopts one-time molding process. The whole inner tube is a whole, without glue bonding, without glue and glass fiber falling off. The overall fire rating reaches incombustible A1, which is applicable to the smoke control system.

2、镀锌铁皮管道。

2. Galvanized iron sheet pipe.

根据标准GB8624-2006中镀锌铁皮的防火性能为A1级，所以镀锌铁皮适用于防排烟系统。

According to the national standard GB8624-2006, the fire resistance of galvanized sheet iron is Grade A1, so galvanized sheet iron is suitable for smoke control system.

3、不锈钢管道。

3. Stainless steel pipe.

油烟气体含碳氢化合物、氮氧化物、醛、酮、烃、脂肪酸、醇、芳香族化合物、内酯、杂环化合物等，与水分结合可生成碳酸、亚硝酸、硝酸、盐酸等强腐蚀酸。

Fume gas contains hydrocarbons, nitrogen oxides, aldehydes, ketones, hydrocarbons, fatty acids, alcohols, aromatic compounds, lactones, heterocyclic compounds, etc., which can be combined with water to form strong corrosive acids such as carbonic acid, nitrite, nitric acid, hydrochloric acid, etc.

不锈钢具有耐酸碱特性，就以304不锈钢为例，在空气中的年腐蚀率小于0.01mm，在类似于排油烟等复杂环境中使用的年腐蚀率小于0.02mm。理论上讲304不锈钢在排油烟管上的应用只需有0.6MM即可保证使用30年以上。

Stainless steel has the characteristics of acid and alkali resistance. Take 304 stainless steel as an example, the annual corrosion rate in the air is less than 0.01 mm, and the annual corrosion rate in complex environments such as lampblack exhaust is less than 0.02 mm. Theoretically speaking, the application of 304 stainless steel in the oil smoke exhaust pipe can be guaranteed to last for more than 30 years with only 0.6MM.

与镀锌钢板比较，保温性能好、其热传导率是镀锌钢板的1/3；不锈钢材料十分光滑；粗糙度只有镀锌钢板的粗糙度的1/5，不易附着油污;

Compared with galvanized steel sheet, it has good thermal insulation performance and its thermal conductivity is 1/3 of that of galvanized steel sheet; Stainless steel material is very smooth; The roughness is only 1/5 of that of galvanized steel plate, and it is not easy to attach oil stains;