为什么要对通风管道防腐保温？

发布人：http://www.sftfgd.com   发布时间：2021-06-10 11:21:26

众所周知，通风管道的基本用途就是送新风和排气，将有害气体排出室外，把室外新鲜空气送室内。在使用安装时需要做好防腐保温，那这样做有什么必要性呢？ 让我们跟着通风管道厂家一起了解一下：

As we all know, the basic purpose of ventilation pipe is to supply fresh air and exhaust, to discharge harmful gases out of the room, to send outdoor fresh air indoors. In the use and installation of the need to do a good job of anti-corrosion insulation, then what is the need to do so? Let's follow the ventilation duct manufacturers to understand:

一般情况下使用镀锌铁管，有腐蚀性及特别潮湿的场所使用不锈钢管。当周围环境空气湿度较大时，风道外壁需做防腐蚀、防锈处理。对输送高温、高湿气体的风道内壁宜喷刷磷化底漆或其他耐蚀涂料。在风道输送高温气体或低温空气时，风道外壁应做保温(保冷)处理下。

Generally, galvanized iron pipe is used, and stainless steel pipe is used in corrosive and especially humid places. When the ambient air humidity is high, the outer wall of the air duct should be treated with anti-corrosion and anti rust treatment. Phosphating primer or other corrosion-resistant coating should be sprayed on the inner wall of air duct conveying high temperature and humidity gas. When conveying high-temperature gas or low-temperature air in the air duct, the outer wall of the air duct should be insulated (cold insulation).

输送高温气体风管的保温目的，一是防止管道内空气的热损失(出现在冬季集中空调系统);另外是防止在输送废热蒸汽或高温气体时阻止热量散发到房间内而使室温升高，又可防止人接触风道而被烫伤。而在夏季往往因输送气体的温度低于周围环境的空气露点温度时，管道外壁会产生结露现象。这对集中空调系统的风道会加大冷量损失，同时凝结水滴会污染吊顶和墙地面，因此也应该进行保冷隔热处理。

The purpose of heat preservation of air duct conveying high temperature gas is to prevent heat loss of air in the duct (in winter central air conditioning system); In addition, it can prevent the room temperature from rising due to the heat emission to the room when conveying waste heat steam or high temperature gas, and prevent people from being scalded by contacting the air duct. In summer, when the temperature of the transported gas is lower than the dew point temperature of the surrounding air, condensation will occur on the outer wall of the pipeline. This will increase the cooling loss of the air duct of the central air conditioning system, and at the same time, the condensate droplets will pollute the ceiling and the wall floor, so the cold insulation treatment should also be carried out.

上述就是通风管道防腐保温的原因，只有进行防腐才能在之后的使用中减少腐蚀的现象，所以我们要注意这些方面，尽量保证在之后的使用中更加的顺利，效果更好。

The above is the reason for the anti-corrosion and heat preservation of ventilation pipes. Only by anti-corrosion can we reduce the corrosion phenomenon in the later use, so we should pay attention to these aspects, and try our best to ensure that the later use is more smooth and the effect is better.