空气预热器（Air Preheater）是一种用于加热进入燃烧室之前空气的设备。它通常用于燃煤或燃油的工业锅炉或燃烧系统，以提高能源利用效率和减少污染物的排放。
以下是一篇关于空气预热器的英文范文：
Air Preheater: An Important Component of a Modern Power Plant
Air preheater is a crucial component of a modern power plant, which plays a vital role in improving the overall efficiency of the plant and reducing pollutant emissions. The purpose of air preheater is to warm up the incoming air before it enters the combustion chamber, thereby enhancing the combustion process and reducing the amount of pollutants generated.
In a typical power plant, the air preheater is connected to the exhaust gas system. The hot exhaust gases from the turbine are sent through the air preheater, which absorbs their heat and transfers it to the incoming air. This process results in a more efficient combustion of fuel, leading to lower emissions of harmful gases such as carbon dioxide and nitrogen oxides.
Moreover, air preheater also contributes to improving the overall efficiency of the plant by increasing the temperature of the incoming air. This allows for a more thorough mixing of air with fuel, resulting in better ignition and combustion, leading to increased production capacity and efficiency.
In conclusion, air preheater is an essential component of a modern power plant that plays a crucial role in improving energy efficiency, reducing pollutant emissions, and enhancing overall plant performance.
air preheater 是空气预热器的意思^[1][2]^。
空气预热器是用于提高锅炉热效率的，增加空气温度的预热，可以提高锅炉的热效率，减少排烟温度，增加排烟热量。同时，也降低了排烟黑度，减少对环境的污染^[2]^。
在英文范文里，air preheater 通常被用来描述特定的预热空气或某种设备的热端（端部）空气预热器。
“air preheater”的意思是空气预热器。
在英文范文中的最新变化可能表现为其用途和结构的改变。它通常用于加热烟气和助燃，以提高热效率。此外，随着技术的发展，新型的空气预热器可能由板式、波形、管式等构成，具有高效、耐高温、耐腐蚀、压降低、寿命长等优点。