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1982年6月,我站选择了温州市欧海县国营三溪机电灌溉站,进行以提高机组装置效率(以下简称效率),降低能源单耗为目的的技术改造试点。该站地处温、瑞、平原水网地区,平均扬程3米,有固定机埠39处,流动船机26只,灌溉农田约5万亩,配用水泵有8～12吋的混流泵,离心泵和少量的轴流泵,额定扬程4.5～17米,配套单机容量7～14瓩。其中大多数是50年代的产品,经过20年运行,设备陈旧,效率低。1982年实测,效率最大为37.1%,最小为16.9％,平均为25.9％。由此可见,技术改造工作,非常必要。目前技术改造任务已基本完成,有关改造前后技术经济指标对比列表如下:
In June 1982, I selected the State-run Sanxi Electromechanical Irrigation Station in Ouhai County of Wenzhou City to carry out pilot projects of technological transformation with the aim of improving unit efficiency (hereinafter referred to as efficiency) and energy consumption reduction. The station is located in Wen, Rui, plain water network area, the average lift of 3 meters, a fixed port 39, 26 mobile ship, irrigation farmland of about 50000 acres, with a pump with 8 ~ 12 inch mixed flow pump, Centrifugal pump and a small amount of axial flow pump, rated head 4.5 to 17 meters, supporting stand-alone capacity of 7 to 14 瓩. Most of these products are from the 1950s. After 20 years of operation, the equipment is old and inefficient. Measured in 1982, the maximum efficiency of 37.1%, a minimum of 16.9%, an average of 25.9%. This shows that it is necessary to carry out technological transformation. At present, the task of technological transformation has been basically completed. The comparison of technical and economic indicators before and after the transformation is as follows: