我国“水法”公布实施以后,要求各工、矿等用水单位进行用水计量,按量收费,目前各地在征收水费中,一般是以水泵的名牌或电耗推算出流量。有些水泵因年久失修效率低,流量输出与实际不符,也有一些使用电磁、超声波等流量计,但工作水体不宜有较大的含沙量。且仪器造价高,使用、管理、检修等技术要求也高,维修不方便,需采用交流电等。经调研国外有关量水仪表的资料表明,早在二十年代美、德、苏、日等国,已使用江河流速仪进行测量。迄今仍属主要的流量计测仪表。这种仪器的优点是:结构简单、可靠,可长期使用,且造价低。我所研制的HL-1型浑水流 After the promulgation of the “Water Law” in our country, all units, mines and other water units are required to measure the water consumption according to the quantity. At present, water charges are collected from all over the country, and the flow rate is usually calculated based on the brand name or power consumption of the pump. Some pumps due to disrepair inefficient, flow output and the actual discrepancies, there are some use of electromagnetic, ultrasonic and other flow meters, but the working water should not have a greater sediment concentration. And high cost of equipment, use, management, maintenance and other technical requirements are high, inconvenient maintenance, the need to use AC. According to the survey data from foreign countries about water meters, it has been used in the United States, Germany, the Soviet Union and Japan as early as the 1920s to measure with the current meter. So far is still the main flow meter. The advantages of this instrument are: simple structure, reliable, long-term use, and low cost. I developed HL-1 type muddy water flow