Partial pipe flow calibration device

Abstract

The invention provides a partial pipe flow calibration device and relates to the technical field of flow measurement. The partial pipe flow calibration device includes a first water storage tank, a second water storage tank, a water pump, a connecting pipe and a simulated partial pipe; The water outlet of the pipeline is set corresponding to the second water storage tank; the water pump is used to control the water output of the first water storage tank, and an opening is set on the pipeline for simulating a partly filled pipe, and a flow probe to be measured is installed on the opening, and the second water storage tank is used to receive Simulate the water outlet of the partially full pipe, so that the recorded data of the measured flow probe can be compared with the total water volume of the second storage tank. It solves the technical problems that the calibration method is complicated and difficult to operate in the prior art. The invention simulates the use environment of the partial pipe flowmeter, compares the total water volume of the second water storage tank with the data of the measured flow probe, and determines the accuracy of the measured flow probe.

Description

technical field [0001] The invention relates to the technical field of flow measurement, in particular to a partial pipe flow calibration device. Background technique [0002] With the development of science and technology, there is an increasing demand for liquid level monitoring in municipal and water conservancy fields such as rainwater, sewage, reclaimed water, rivers, lakes, and roads. In recent years, the country has paid more and more attention to the liquid level measurement and monitoring data of urban rivers and drainage pipes. Flow measurement is now widely used flowmeter, flowmeter variety, can be divided into rotameter, throttling flowmeter, slit flowmeter, volumetric flowmeter, electromagnetic flowmeter, ultrasonic flowmeter and so on. Many flowmeters require that the liquid in the pipeline fills the cross section of the pipeline, and the flow rate of the liquid passing through the flowmeter is obtained by different methods. However, under some specific condi...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a non-full pipe flow calibration device to solve the technical problems in the prior art that the calibration method of the open channel flowmeter is complicated and the operation amount of the construction personnel is increased.

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