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彭水县城地处乌江河畔,常住人口2万多,年流动人口34万,有饮料、酿造等10多个大小工厂,年需供水141万吨。由于地方电网全系径流式电站,供电能力随水力丰枯而变化。每年枯水期,电源频率不足(45～48赫),导致自来水厂电机转速下降,水泵不能抽到额定扬程,造成全城停水。仅86年10月连续停水达20多天,群众怨声载道,造成不良的影响。饮料等厂因停水停产损失1.2万元(工资),电厂因采取“保水停面”措施(停一大片区乡用电),少收电费损失7万多元.县委把解决这一技术问题交给我会,要求尽快解决。现将解决办法介绍于后。
Pengshui County is located on the banks of the Wujiang River, with a resident population of over 20,000 and an annual floating population of 340,000. There are over 10 plants of various sizes such as beverages and breweries, and 1.41 million tons of water are needed annually. Due to the local grid full-scale run-of-river power station, power supply capacity changes with the abundance of water. Every year in dry season, the power frequency is insufficient (45 ~ 48 Hz), resulting in the decrease of the motor speed of the waterworks. The pump can not be pumped to the rated head, which results in the city’s no-water supply. In October 1986, it stopped watering for more than 20 days in a row, causing mass resentment and bad influence. Beverages and other plants due to stoppage of production loss of 12,000 yuan (salary), power plants due to take “water surface” measures (stop a large area of rural electricity), less electricity loss of more than 70,000 yuan.County to solve this technical problem Give it to me and ask for it as soon as possible. The solution is introduced later.