Ventilation ducts are generally divided into three types of materials: white iron (galvanized) ventilation ducts, fiberglass ventilation ducts, and composite material ventilation ducts;

1、净化空调系统用通风管道 【镀锌版、不锈钢】

1. Ventilation ducts for purification air conditioning systems [galvanized version, stainless steel]

2、系统用通风管道【镀锌板、彩钢保温板】

2. Ventilation ducts for central systems [galvanized sheet, color steel insulation board]

3、环境控制系统用风管【镀锌板、不锈钢】

3. Air ducts for environmental control systems [galvanized sheet, stainless steel]

4、工业通风系统用风管【钢板、镀锌板】

4. Air ducts for industrial ventilation systems [steel plates, galvanized sheets]

无机玻璃钢通风管道

Inorganic fiberglass ventilation ducts

无机玻璃钢通风管道又称为玻镁风管，是以改性菱镁水泥为胶结料，掺入有机或无机填充料，并用中碱玻璃纤维布进行增强而制成的一种管材。具有不燃烧、耐腐蚀、强度高和重量轻等特点，被广泛应用于宾馆、饭店、大型商场、写字楼的空调工程以及矿井通风、工厂排烟、除尘等工程。在建筑工程、地下工程及工业厂房的通风中，它已经完全取代了不耐燃的有机玻璃钢通风管，并在逐步取代防腐性能差的镀锌铁皮通风管。尤其是在湿度大的地下工程和长江以南地区，它的优越性更为显著。

Inorganic fiberglass ventilation ducts, also known as glass magnesium ducts, are a type of pipe material made from modified magnesite cement as a binder, mixed with organic or inorganic fillers, and reinforced with medium alkali glass fiber cloth. It has the characteristics of non combustion, corrosion resistance, high strength, and light weight, and is widely used in the air conditioning engineering of hotels, restaurants, large shopping malls, office buildings, as well as mine ventilation, factory smoke exhaust, dust removal and other engineering. In the ventilation of building engineering, underground engineering, and industrial factories, it has completely replaced the non combustible organic glass reinforced plastic ventilation pipes, and is gradually replacing the galvanized iron sheet ventilation pipes with poor anti-corrosion performance. Especially in underground projects with high humidity and areas south of the Yangtze River, its advantages are even more significant.

分类

classification

根据国家建筑材料行业标准JC646-1996标准的规定，无机玻璃钢通风管道按用途分为P类管和D类管两种。P类管主要用于公共建筑、人防工程及一般需要安装通风及空调设施的工业厂房和矿井等，作通风管、排烟管和排尘管；D类管则主要用作住宅建筑的通风管、排油烟管。

According to the national building materials industry standard JC646-1996, inorganic fiberglass ventilation pipes are divided into two types according to their purpose: P-type pipes and D-type pipes. P-type pipes are mainly used in public buildings, civil air defense projects, and industrial factories and mines that generally require the installation of ventilation and air conditioning facilities, as ventilation pipes, smoke exhaust pipes, and dust exhaust pipes; Class D pipes are mainly used as ventilation pipes and oil fume exhaust pipes in residential buildings.

产品质量等级

Product quality level

根据无机玻璃钢通风管道的物理力学性能和外观质量，无机玻璃钢通风管道分为一级品和合格品两个等级。

According to the physical and mechanical properties and appearance quality of inorganic fiberglass ventilation pipes, they are divided into two levels: first level products and qualified products.

产品规格

Product specifications

无机玻璃钢通风管道的尺寸主要由设计单位根据工程需要的通风量进行设计，也可根据客户的具体要求设计。

The size of inorganic fiberglass ventilation ducts is mainly designed by the design unit based on the ventilation volume required by the project, and can also be designed according to the specific requirements of the customer.

无机玻璃钢通风管道的外形分圆形和矩形两种截面。管道的长一般为2～3m，如果圆形管直径和矩形管的边长大于1.5m时，管段长度可适当缩短。管段之间的连接方式有两种：一是法兰连接，一是承插式连接

The appearance of inorganic fiberglass ventilation ducts can be divided into two sections: circular and rectangular. The length of a pipeline is generally 2-3m. If the diameter of a circular pipe and the side length of a rectangular pipe are greater than 1.5m, the length of the pipe section can be appropriately shortened. There are two connection methods between pipe sections: flange connection and socket connection