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    在潮湿的气候下埋地管道要注意哪些?
    来源:www.jntchbt.com 日期:2019-10-09 10:36:09

      在潮湿的气候下,空气中的水蒸气在空调管道上冷凝。 通常情况下,隔音效果差的房间会使乘客感到不适或香烟引起肺癌。 管道上的冷凝水最常见于爬行空间和地下室,在这些地方空气更可能具有较高的露点。 但是它也发生在条件空间中,有时甚至在阁楼中。 因此,在潮湿的气候下,尤其是在空调管道的沿海地区,必须小心将管道埋入阁楼保温层中。 让我们仔细看看2018年的国际住宅法规(IRC)和国际能源节约法规(IECC)如何规定如何避免在潮湿气候下的地下管道。

      In humid weather, water vapor in the air condenses on the air conditioning pipeline. Usually, rooms with poor sound insulation can make passengers uncomfortable or cigarettes cause lung cancer. Condensate on pipes is most common in crawling spaces and basements where air is more likely to have higher dew points. But it also happens in conditional spaces, sometimes even in attics. Therefore, in the humid climate, especially in the coastal areas of air conditioning pipelines, it is necessary to carefully bury the pipelines in the attic insulation layer. Let's take a closer look at how the International Residential Code (IRC) and the International Energy Conservation Code (IECC) of 2018 stipulate how to avoid underground pipelines in damp climates.

      管道结露的可能性是潮湿的气候,这是在冷却季节出现的问题。 西方的朋友经常将其管道埋入可渗透的绝缘层(例如玻璃纤维或纤维素)中,不必担心冷凝。 管道中的空气可能低至55°F,但它们的夏季露点通常低于50°F。 没有足够的水蒸气冷凝。

      The possibility of condensation in pipes is humid, which is a problem during the cooling season. Western friends often bury their pipes in permeable insulating layers (such as fiberglass or cellulose) without worrying about condensation. The air in pipes may be as low as 55 degrees F, but their summer dew point is usually less than 50 degrees F. There is not enough steam to condense.

      在潮湿的气候中情况并非如此。 上图显示了南卡罗来纳州希尔顿头岛爬行空间中管道上的冷凝水。 夏季室外露点可以达到80°F,即70年代中期的平均水平。 当55°F的空气通过供气管路时,必须在管道上安装较大R值的良好绝缘材料,以使表面温度保持在露点以上。

      This is not the case in humid climates. The picture above shows condensate from a pipeline in a crawling space on Hilton Head Island, South Carolina. The outdoor dew point in summer can reach 80 degrees F, which is the average level in the mid-1970s. When air of 55 degrees F passes through the gas supply pipeline, good insulating materials with larger R value must be installed on the pipeline to keep the surface temperature above dew point.

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      当供应管处于通风的爬行空间时,很难将表面温度保持在露点以上,因为那里的温度已??经接近露点。 但是,如果通风阁楼的天花板隔热层上方有供气管,则夏季的环境空气温度会高于环境温度。 因此,管子的表面温度最有可能高于露点。 这意味着没有结露。

      When the supply pipe is in a ventilated crawling space, it is difficult to keep the surface temperature above the dew point, because the temperature there is already close to the dew point. However, if there is a supply pipe above the ceiling insulation of the ventilated attic, the ambient air temperature in summer will be higher than the ambient temperature. Therefore, the surface temperature of the tube is most likely to be higher than the dew point. This means no dew.

      但是,如果您将供气管埋入玻璃纤维或纤维素绝缘材料中,以使阁楼空气可以到达管子表面,则所有投注将被取消。 随着在管道顶部建立越来越多的隔热层,隔热套(蒸汽屏障)的表面温度将下降。

      However, if you bury the air supply pipe in glass fibre or cellulose insulation material so that attic air can reach the surface of the pipe, all bets will be cancelled. As more and more insulating layers are built on the top of the pipeline, the surface temperature of the insulating sleeve (steam barrier) will decrease.

      由于阁楼空气渗透到天花板隔热层中,因此内部露点可能与隔热层上方的阁楼空间相同。 另外,如果阁楼通风,则阁楼空气的露点应与室外空气大致相同。 正确? 结果是管道表面温度低于天花板隔热层中的空气露点,这意味着冷凝。

      ? because the loft air penetrates the ceiling insulation, the internal dew point may be the same as the loft space above the insulation. In addition, if the attic is ventilated, the dew point of the attic air should be approximately the same as that of the outdoor air. Correct? The result is that the surface temperature of the pipe is lower than the dew point of the air in the ceiling insulation, which means condensation.

      有时已经证明,在潮湿的气候下,埋在天花板隔热层中的管道会引起冷凝问题。 如果您生活在潮湿的气候中,尤其是在墨西哥湾或大西洋附近,您现在可能有理由在天花板上看到那些神秘的水斑。 也许。 它们也可能来自屋顶泄漏。

      It has sometimes been proved that pipelines buried in the ceiling insulation can cause condensation problems in humid climates. If you live in a humid climate, especially in the Gulf of Mexico or near the Atlantic Ocean, you may now have reason to see those mysterious water spots on the ceiling. Maybe. They may also come from roof leaks.