A self-venting multi-pipeometer pressure gauge

Abstract

The invention discloses a self-exhaust type multi-pressure measuring tube manometer, which comprises: more than two pressure measuring tubes; a flow divider connected with more than two pressure measuring tubes; connecting the pressure measuring tubes and the flow divider damping element; an air pump connected to said flow divider. The present invention utilizes the damping element to provide pressure-limited flow-limited gas supply to each pressure-measuring tube, so as to realize the self-exhausting synchronous exhaust function of one pump and multiple tubes. The electric exhaust method is used to fill the blank of the electronically controlled self-exhaust multi-tube manometer in the automatic control system. As a fluid mechanics experiment teaching instrument, the invention innovatively uses the principle of fluid mechanics to solve experimental problems, can stimulate students' interest in learning, inspire students' innovation consciousness, is beneficial to cultivating innovation ability, and has a good teaching effect.

Description

technical field [0001] The invention relates to the field of experimental measurement, in particular to a self-exhausting multi-pressure measuring tube manometer. 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, the piezometric tube is one of the most commonly used pressure measuring instruments in the process of hydraulic and fluid mechanics experiments. It is the simplest type of liquid column pressure gauge. It uses a transparent straight glass tube with a diameter of The lower end of the pipe is sealed with the measuring point through a hose, and the upper end of the pipe is open to the atmosphere. According to the rising height of the liquid column in the pressure pipe, the pressure at that point can be obtain...

AI Technical Summary

Problems solved by technology

The short circuit of the gas circuit causes the pressure on the main channel of the gas circuit to drop suddenly, causing the other pressure measuring tubes to be unable to discharge water, thus failing to achieve the effect of synchronous exhaust

So the self-venting multi-piezometer manometer of one pump and one pipe has only been used by the inventor in the laboratory. It is conceivable that the manometer of 20 pipes will use 20 small air pumps. Can be used occasionally, no promotion and application value

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