濮阳市引黄供水一级泵房最佳运行方案的确定

OPTIMAL OPERATION SCHEME OF THE FIRST STAGE PUMPING STATION OF YELLOW RIVER WATER DIVERTING IN PUYANG CITY, HENAN PROVINCE

濮阳市引黄供水一期工程供水量为6万m^3/d,二期工程全部建成将形成12万m^3/d的供水规模.黄河水通过一级泵房自流供水2万m^3/d,随着城市需水量不断增加,一级泵房必须部分时间启泵供水.作者通过对一级泵房和输水管路的水流阻力计算,提出四种不同的运行方案,并比较了四种方案的经济效益.目前一级泵房按最经济的Ⅰ方案运行,与原运行方案相比,每年节电67.06万kW·h.

The capacity of Yellow River water diverting project to Puyang city in Henan province, North China, is 60 thousand cubic meters per day for the first phase and will increase to 120 thousand cubic meters per day when its second phase is completed. 20 thousand cubic meters of water per day are supplied gravitationally via the first pumping station from Yellow River to the city. However along with the increasing of urban water demand, the first pumping station has to start sometimes. so an optimal operation scheme must be adopted essentially. Four selectable plans of pumping station operation were proposed by the author based on hydraulic calculation of water transportation line and the first pumping station as well as the benefit comparison of this four plans. Now the first pumping station has been operated on the optimal scheme and 670. 5 thousand kWh of energy per year have been saved than the past.