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本文介绍了一种新型的量水设备,其结构型式是以文透里管为主管,喉管上连接一支管与上游水体或进水段接通,支管上安装一旋翼式水表。根据伯努利连续方程原理,即在同一时段内总管流量与支管流量之比是一常数,故可由水表在某一时段内的读数推算出同时段内总的过水量。该量水计具有结构简单、建造容易、造价低、测读简捷、灵敏度高等特点,而且在自由流和淹没流条件下有同一的数值,量水精度达95%以上。
In this paper, a new type of water measuring equipment is introduced. The structure type of the device is dominated by a text pipe, a pipe connected to an upstream water body or water inlet section, and a rotor water meter installed on the branch pipe. According to the Bernoulli continuous equation principle, that is, the ratio of the total flow to the branch flow is constant over the same period, the total amount of over-water in the same period can be calculated from the reading of the water meter in a certain period of time. The water meter has the advantages of simple structure, easy construction, low cost, simple reading and high sensitivity, and has the same numerical value under the conditions of free flow and submerged flow, and the precision of the measuring water reaches more than 95%.