风管的用途
The purpose of the air duct


普通通风系统：用于一般建筑物的通风换气，对风管厚度的要求相对较低。
Ordinary ventilation system: used for ventilation and air exchange in general buildings, with relatively low requirements for duct thickness.


排烟系统：用于火灾排烟，要求风管具有较高的耐火性和耐高温性能，厚度需适当增加。
Smoke exhaust system: used for fire smoke exhaust, requiring air ducts to have high fire resistance and high temperature resistance, and the thickness should be appropriately increased.


洁净室系统：用于无尘环境，风管需具有较高的密封性和耐腐蚀性，厚度选择需根据洁净等级确定。
Cleanroom system: used in dust-free environments, the air ducts need to have high sealing and corrosion resistance, and the thickness selection should be determined according to the cleanliness level.


工业排风系统：用于化工、冶金等腐蚀性环境，风管需具备更强的耐腐蚀性和机械强度。
Industrial exhaust system: used in corrosive environments such as chemical and metallurgical industries, air ducts need to have stronger corrosion resistance and mechanical strength.


工作环境
working environment


腐蚀性环境：在化工、海洋等腐蚀性较强的环境中，不锈钢风管需选择更厚的材料以延长使用寿命。
Corrosive environment: In highly corrosive environments such as chemical and marine industries, stainless steel ducts need to be made of thicker materials to extend their service life.


高温环境：在高温环境中，风管需具备良好的耐热性能，厚度需根据温度范围确定。
High temperature environment: In high temperature environments, air ducts need to have good heat resistance, and the thickness should be determined according to the temperature range.


潮湿环境：在潮湿环境中，风管需选择更厚的材料以防止锈蚀。
Damp environment: In damp environments, thicker materials should be selected for air ducts to prevent rusting.


压力等级
pressure rating


低压系统：压力范围在500Pa以下，对风管厚度的要求较低。
Low pressure system: The pressure range is below 500Pa, and the requirement for air duct thickness is relatively low.


中压系统：压力范围在500Pa至1500Pa之间，风管厚度需适当增加。
Medium pressure system: The pressure range is between 500Pa and 1500Pa, and the thickness of the air duct needs to be appropriately increased.


高压系统：压力范围在1500Pa以上，风管需选择更厚的材料以确保强度和密封性。
High pressure system: The pressure range is above 1500Pa, and thicker materials need to be selected for the air ducts to ensure strength and sealing.