基于全生命周期成本的温石汤泵站节能运行策略

Energy-Saving Operation Strategy for Wen Shitang Pumping Station Based on Life Cycle Cost

摘要:

文章以胶东调水工程关键节点——温石汤泵站为对象,将全生命周期成本管理理论(Life Cycle Cost,LCC)应用于泵站节能运行策略制定中,针对泵站电费占比超63.8%、设备老化加剧等突出问题,构建"技术-经济"一体化分析框架,系统剖析能耗结构与LCC分布,明确运行能耗成本占主导(65%)。基于此,从设备、运行与管理三个层面提出集成化节能策略:推广高效永磁电机与调速系统数字化改造,如在浆液循环泵和凝结水泵上的应用所示;开发基于分时电价与机组组合优化的智能调度系统,以实现更高效的能源使用;建立预防性维护与LCC信息化管理体系,以提高设备运行效率和降低维护成本。实践表明,此项策略实现年节电量126万kW·h,全生命周期成本现值降低约530万元,为大型泵站实现安全、低碳与经济运行提供了可复制的技术路径与管理范式。

Abstract:

Taking Wen Shitang Pumping Station, a key node of the Water Diversion Project to Jiaodong Area, as the research object, this paper applies the Life Cycle Cost (LCC) theory to formulate energy-saving operation strategies for the pumping station. A techno-economic integrated analytical framework is established to address prominent problems including electricity charges accounting for over 63.8% of total costs and worsening equipment aging. The paper systematically analyzes energy consumption structure and LCC distribution, and identifies that operational energy cost dominates with a proportion of 65%. On this basis, integrated energy-saving strategies are proposed from equipment, operation and management dimensions: promoting digital transformation with high-efficiency permanent magnet motors and speed regulation systems, as demonstrated by applications in slurry circulating pumps and condensate pumps; developing an intelligent dispatching system based on time-of-use electricity price and unit combination optimization to achieve higher energy efficiency; establishing a preventive maintenance and LCC information management system to improve equipment operational efficiency and reduce maintenance costs. Practices show that the proposed strategies achieve an annual electricity saving of 1.26 million kW·h and reduce the present value of life cycle cost by approximately CNY 5.3 million, offering a replicable technical route and management paradigm for safe, low-carbon and economical operation of large-scale pumping stations.