我国的中小型火力发电厂,多数采用自然循环式的中压(3.82兆帕)锅炉。这些锅炉的蒸发量多为35～130吨/时,设计结构较为简单,影响运行的因素较多,一般说来运行参数不甚稳定,若操作不当,容易发生减温器损坏或其它事故,不利于电厂运行安全。 影响锅炉运行稳定的因素很多,而发电厂汽 China’s small and medium-sized thermal power plants, most of the natural circulation of medium voltage (3.82 MPa) boiler. The evaporation of these boilers are mostly 35 to 130 tons / hour, the design structure is relatively simple, affecting the operation of many factors, in general, the operating parameters are not stable, if improper operation, prone to desuperheater damage or other accidents, not Conducive to the safe operation of power plants. Many factors affect the stability of boiler operation, while the power plant steam