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复合相变换热器在用作大幅度降低锅炉排烟温度的同时 ,又能使尾部受热面壁温保持较高温度 ,是一种彻底消除因受热面结露而造成低温腐蚀的高效节能设备。江西锅炉厂生产的 JG2 5 -3.82 / 45 0 -W 型锅炉是第一台采用复合相变换热空气预热器循环流化床锅炉 ,已在福建凤竹集团有限公司运行。在运行中 ,锅炉的热工技术性能良好。表 1
The composite phase change heat exchanger can effectively reduce the temperature of the boiler exhaust smoke while maintaining the wall temperature of the rear heated surface at a high temperature. It is a highly efficient and energy-saving device that completely eliminates the low-temperature corrosion caused by condensation on the heating surface. JG2 5 -3.82 / 45 0 -W boilers produced by Jiangxi Boiler Factory are the first circulating fluidized bed boilers with composite phase change hot air preheater and have been operated in Fujian Fengzhu Group Co., Ltd. In operation, the thermal performance of the boiler is good. Table 1