【摘要】 排烟余热利用于热力循环是为了节能。它与一般以水蒸汽为工质的余热发电相比,具有循环效率高、节能效果显著和偿还期相对较短的特点。其节能效益取决于气水热交换器在热系统中的联结方法,及其运行参数的选择。根据龙口工程,它能使排烟温度大约降低30℃,循环热经济性提高达1.3％。更多还原

【Abstract】 Stack gas heat can be used in a power plant cycle for energy-saving. A power cycle with stack gas heat utilization is characterized by its higher cycle effi- ciency, greater energy-saving capability and relatively shorter period of repayment in comparison with the usual steam power plant with waste heat recovery, Its energy-saving capability depends on how the gas/water heat exchanger is integrated into the cycle and on how the operating parameters of the exchanger are chosen. According to experience gained in Longkou project, the stack gas temperature is reduced by about 30℃, thereby increasing the thermal economy of the cycle by about 1.3%.更多还原