通风管道是一种用于空气流通和降低有害气体浓度的市政基础设施，广泛应用于餐饮、宾馆、工农业等行业。在生活中，我们随处可见通风管道，通风管道的重要性不言而喻。由于通风管道的生产成本较高，管道的维护越来越受到人们的重视
Ventilation duct is a municipal infrastructure for air circulation and reducing the concentration of harmful gases, which is widely used in catering, hotels, industry and agriculture and other industries. In life, we can see ventilation ducts everywhere, and the importance of ventilation ducts is self-evident. Due to the high production cost of ventilation pipes, people pay more and more attention to the maintenance of pipes
冷热绝缘
Cold and hot insulation
冬季(保温):防止管道内空气的热量流失;
Winter (insulation): prevent the heat loss of the air in the pipeline;
输送余热蒸汽或高温气体时，热量会散发到空间中，室内温度会升高;
When transporting waste heat steam or high-temperature gas, heat will be emitted into the space, and the indoor temperature will rise;
防止接触风管时烫伤;
Prevent scalding when contacting the air duct;
夏天(保冷):因为运输天然气的温度低于周围环境的温度,冷凝可能发生在管道的外壁,这将增加冷却损失的空调系统的风道,冷凝液滴会污染天花板和墙上,所以要做好冷保温处理。
Summer (cold insulation): because the temperature of natural gas transported is lower than that of the surrounding environment, condensation may occur on the outer wall of the pipeline, which will increase the cooling loss of the air duct of the air conditioning system, and condensate droplets will pollute the ceiling and wall, so cold insulation treatment should be done well.
另外，风管输送气体时，对风管进行除锈，刷防锈漆，对含尘气体喷涂防损保护层。当环境空气湿度较大时，风管外壁应进行防腐、防锈处理。只有防腐保温(冷保温)才能减少后期使用过程中的腐蚀现象。
In addition, when the air duct is conveying gas, the air duct shall be derusted, painted with antirust paint, and the dusty gas shall be sprayed with a loss prevention protective layer. When the ambient air humidity is high, the outer wall of the air duct should be treated with anti-corrosion and rust prevention. Only anti-corrosion insulation (cold insulation) can reduce the corrosion phenomenon in the later use process.
如何防止腐蚀?
How to prevent corrosion?
俗话说“三层内三层外”，其实这不是开玩笑!
As the saying goes, "three layers inside and three layers outside", in fact, this is not a joke!
喷涂防腐工艺真的需要面漆6次才能达到防腐!
Spraying anti-corrosion process really needs 6 times of finish paint to achieve anti-corrosion!
综上所述，只有进行防腐、保温、冷保温，才能在以后的使用过程中减少腐蚀现象。
To sum up, only by carrying out anti-corrosion, thermal insulation and cold insulation can we reduce corrosion in the later use process.
The above is a detailed introduction about the ventilation ducts in Jinan. 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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