Recently, the installation of a steam-powered feed-water pump group for Inner Mongolia Hongdaxinghe 2×350MW cogeneration unit project undertaken by the 15th Metallurgical Company was completed.
The steam-driven feedwater pump group is mainly composed of a small steam turbine, a main pump, and a front-mounted pump. It can be commonly referred to as a “small steam turbine†or a “small turbine,†and its main purpose is to provide the boiler with desalinated water and provide the boiler with a water supply amount of no. Less than 30% of traffic and design headroom. The installation of the steam-powered water pump group lays the foundation for the large closure of the turbine. It is understood that the company's 2# unit is equipped with a 2×50% steam-operated speed-regulating feed pump. The normal working steam source of the steam-driven feed-water pump steam turbine uses the four-stage extraction of the main steam turbine. The auxiliary and start-up steam sources use auxiliary steam. , Reheat and cold steam is used as the steam source of the steam turbine water-feed pump turbine at low load.
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