火电汽轮机组热电解耦技术研究

Thermal decoupling technology of thermal power steam turbine unit

针对供热机组受传统"以热定电"运行模式限制,单机调峰能力低(最大仅有50%),无法满足深度调峰的问题,以国电集团西北地区所辖火电供热机组的实际运行情况为出发点,结合汽轮机组节能诊断及机组改造经验,提出了高、低压旁路联合供热,低压缸切缸运行两种热电解耦技术方案,通过比选得出两种技术方案的优缺点及适用范围。

Aiming at the problem that the heating supply units were restricted by the traditional operation mode of which the electricity was determined by the thermal, so the single unit peaking capability is poor（the maximum is only 50% ） and the deep peaking adjustment cannot be satisfied, from the practical operation of thermal power heating supply units controlled by the northwest area of state power group, combining with the energy saving diagnosis and improvement experience of the turbo-generators, two kinds of thermal decoupling technology schemes were proposed which high and low pressure bypass combined with heating supply technology and low pressure cylinder cut through the cylinder, finally the advantages and disadvantages were obtained through the comparison of two kinds of schemes, as well as the scope of application.