Water tank outflow volume measurement device

Abstract

The invention discloses a water tank outflow volume measurement device. The water tank outflow volume measurement device comprises an experiment water tank, a liquid-gas conversion pressure measurement cylinder, a fluid differential pressure sensor and a microcomputer, wherein one side wall of the experiment water tank is provided with an outflow port; the liquid-gas conversion pressure measurement cylinder is arranged inside the experiment water tank, the bottom of the liquid-gas conversion pressure measurement cylinder is communicated with the inside space of the experiment water tank, the side wall of the liquid-gas conversion pressure measurement cylinder is provided with a gas outlet water drainage port, and the upper edge of the gas outlet water drainage port is flush with the middle axis horizontal plane of the outflow port; the fluid differential pressure sensor is connected with the liquid-gas conversion pressure measurement cylinder and is used for detecting the differential pressure between compressed air inside the liquid-gas conversion pressure measurement cylinder and external air; the microcomputer is connected with the fluid differential pressure sensor and is used for converting the differential pressure detected by the fluid differential pressure sensor into the outflow of the outflow port. The water tank outflow volume measurement device can conveniently and accurately measure the jet flow volume of orifices in a momentum experiment instrument and orifices and pipe mouths in a pipe mouth experiment instrument in a hydromechanics fundamental experiment in a digitalized mode.

Description

technical field [0001] The invention relates to the field of experimental measurement, in particular to a flow measuring device based on the flow of an orifice and a nozzle type water tank based on the acting water head. Background technique [0002] Hydraulics and Fluid Mechanics is a major professional basic course for many majors in engineering colleges. Modern hydraulics is based on the three pillars of experiment, theory and calculation. Therefore, experiment is an indispensable content in the teaching process. Among them, orifice and nozzle outflow is one of the important learning contents in this teaching field. Holes are opened on the vertical wall of the container, and the flow phenomenon that the fluid flows out through the orifice is called orifice outflow. The outflow condition can be the outflow under a constant water head or the outflow under a variable water head, it can be in the air, or it can be Flow into the fluid of the same medium. Install a short tub...

AI Technical Summary

Problems solved by technology

[0005] The market and public technical information show that there are many kinds of modern measuring devices and invention patents related to the measurement of liquid flow in pipelines and open channels, but there is no better high flow rate for orifice nozzles under low pressure water head of desktop experimental instruments. Precision digital real-time measuring device

Images