常见通风管道的种类都有哪些。
What are the types of common ventilation ducts.
通风管道用于输送空气(送、回风系统)和排除有害气体(排风系统)。以下是通风管道的几个材质分析：
Ventilation ducts are used to transport air (supply and return air systems) and eliminate harmful gases (exhaust systems). The following are several material analyses of ventilation ducts:
普通冷轧钢板：价格便宜、易腐蚀 ，一般通风用送风、回风、新风、排风、排烟系统。
Ordinary cold-rolled steel plate: It is cheap and prone to corrosion, and generally uses supply air, return air, fresh air, exhaust air, and smoke exhaust systems for ventilation.
镀锌钢板： 耐腐蚀性相比刚办好，但在加工过程中铁皮 对温湿度要求较高场合的送回风系统，超净系统中效过滤，易脱落，油漆不易附着器前和中效至过滤器之间的送风系统。
Galvanized steel plate: For supply and return air systems where the corrosion resistance is relatively good, but the iron sheet has high requirements for temperature and humidity during the processing, the ultra clean system has medium efficiency filtration and is prone to detachment, and the paint is not easy to adhere to the supply air system in front of the filter and between the medium efficiency and the filter.
铝合金板：不起尘、价格贵， 30级净化系统过滤器之后送风系统。
Aluminum alloy plate: dustproof and expensive, with a 30 level purification system filter and air supply system.
硬聚氯乙烯板：表面光滑，不起尘耐腐蚀、价格较贵、易老化 ，过滤器后送风管，表面处理车间排风系统。
Hard polyvinyl chloride board: smooth surface, dust-free, corrosion-resistant, expensive, and prone to aging, with air supply duct after filter and exhaust system in surface treatment workshop.
通风管道在设计阶段，各工种（暖通、给水排水，供电照明与建筑专业）首先应协商好空间分隔，定出每种管道的标高范围。一般情况下不得越出给自己规定的界限。遇有个别管段要越界时应与其他工程协商。
During the design phase of ventilation ducts, various professions (HVAC, water supply and drainage, power supply and lighting, and architecture) should first negotiate space separation and determine the elevation range of each type of duct. Under normal circumstances, one should not exceed the limits set for oneself. When encountering a section that needs to cross the boundary, it is necessary to negotiate with other projects.
保持通风，不仅可以流通空气，更能减型托辊 吸水树脂 天津水处理设备 邯郸断桥铝门窗 唐山防水 检查井模具 沟盖板模具少传染病的传播，对我们的健康有所帮助。以上关于通风管道的介绍，看完之后，希望大家对通风管道能有更多的了解，能够挑选到合适的通风管道。
Maintaining ventilation can not only circulate air, but also reduce the spread of infectious diseases, which is helpful for our health. After reading the above introduction to ventilation ducts, I hope everyone can have a better understanding of ventilation ducts and be able to select suitable ones.