加氢反应炉空气预热系统改用热管预热器后，炉子热效率提高了约3%。
After the air preheater system of hydrogenated reaction furnace changes into heat tube preheater, the heat efficiency of furnace increases about 3%.
容克式空气预热器是热力发电厂、钢铁和化工行业回收余热，提高换热效率的重要设备。
Ljungstrom air preheater is important equipment to recover waste heat and improve heat exchange efficiency for thermal power plant, steel industry and chemical industry.
空气预热器的热交换效率对整个锅炉的热效率影响很大。
Heater exchanger efficiency of air preheater was important influence of heat efficiency on the boiler.
采用回转式空气预热器的热回收系统，可以使加热炉热效率保持在86%以上。
Heat recovery system with revolving air preheater can keep the heat efficiency above 86%.
在含氧体积分数为36%以内提高空气预热温度和含氧浓度，可明显地提高热效率，降低钢坯的氧化烧损。
Under oxygen concentration 36% the higher air temperature and the higher oxygen concentration are, the higher heat efficiency is and the less oxidation loss is obviously.
预热预分解系统的气固两相流中，颗粒、颗粒特征及运动规律是影响预热系统热效率的重要因素。
Particle in the gas and solid two- phase flow of precalcining system, particle characteristic and moving rule are important factors that influence heat system efficiency.
针对预热器级数、漏风系数对双系列热效率的影响展开研究，其规律对新型预热器系统的开发具有指导意义。
The effects of preheater stage and air-leakage coefficient on bi-series thermal efficiency are also researched, its regular patterns are of guide to the development of new type of preheater system.
管式加热炉采用“冷进料、热油预热空气”以提高热效率，受到了广泛的注意。
Heaters with feed and air preheated by hot flue gas and hot residue oil respectively have attracted extensive attention.
锅炉采用三盘管结构，烟气三回程，设计紧凑，节能空间，增加空气预热器时热效率最高可达92%以上。
Triple coil structure is adopted for the boiler with three-pass smoke and flue, compact design and energy-saving space. The air pre-heater is added to enhance the heating efficiency up to 92% or more.
锅炉采用三盘管结构，烟气三回程，设计紧凑，节能空间，增加空气预热器时热效率最高可达92%以上。
Triple coil structure is adopted for the boiler with three-pass smoke and flue, compact design and energy-saving space. The air pre-heater is added to enhance the heating efficiency up to 92% or more.
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