一、前言 冶金厂矿生产用水流量较大,可达每小时数千立方米,且通常不经净化处理,水中混有泥沙、浮游生物、纤维性杂质等,致使许多种现行流量计难于长时间连续稳定运行、准确计量。为此必须研究解决生产用水的计量问题。 我们针对有些场合生产用水在一段沟道内(例如泉水沟、回水沟、贮水池进水沟、污水排放沟等)流动的生产实况,研制了沟 First, the foreword Metallurgical factories and mines produce large flow of water, up to several thousand cubic meters per hour, and usually without purification, mixed with sediment, plankton, fibrous impurities, resulting in many kinds of current flow meter is difficult for a long time Continuous and stable operation, accurate measurement. To this end, we must study and solve the measurement of production water. We have developed ditches for the production flow of production water in some channels (such as spring ditches, return ditches, water storage ditches, sewage discharge ditches, etc.) on some occasions