关键词: 垃圾焚烧, 超高压, 再热, 汽温, 效率, 一次再热, 炉内, 参数

Abstract: In recent years, the scale of domestic waste incineration projects in China has continued to expand, industry competition has intensified, the superposition of state subsidies and environmental protection requirements have increased, and enterprises need to achieve cost reduction and efficiency through technological innovation. Improving steam parameters, optimizing waste heat utilization efficiency and adopting high speed steam turbine are the key technical paths. Among them, reheat technology in UHV furnace significantly improves power generation efficiency by improving steam parameters, and has become a research hotspot in the field of waste incineration. In this paper, the reheat incineration line in a 1000 t/d ultra-high pressure furnace is taken as an example to analyze its technical scheme and operation effect. The main steam parameter of the project is 13 MPa, 450℃, and a primary intermediate reheating system is adopted. After putting into operation, the power generation per ton of garbage is increased to 555 kWh/t, an increase of 239 kWh/t compared with before the transformation, and the annual income is increased by more than 22 million yuan. The results show that UHP reheating technology can significantly improve the economic and environmental benefits of waste incineration plants.

Key words:

 ')">">  , garbage power generation, Super-High , Pressure, Reheating, steam turbine,  , low speed,  ,

Efficiency')">"> Efficiency, In furnace, argument, Single reheat