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A self-checking device for dynamic response characteristics of liquid flowmeter

A liquid flowmeter and dynamic response technology, which is applied in the direction of liquid/fluid solid measurement, measuring device, test/calibration volume flow, etc., can solve the problem of few evaluation methods of flowmeter dynamic response characteristics, and achieve simple structure and wide applicability , the effect of convenient operation

Active Publication Date: 2019-05-21
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Although scholars at home and abroad have carried out theoretical analysis of the dynamic characteristics of different flowmeters and developed various instruments for measuring dynamic flow, when such flowmeters are used in industry, it is still necessary to conduct research on their dynamic response characteristics. Evaluation or verification, but there are still few methods for evaluating the dynamic response characteristics of flowmeters in the industry

Method used

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  • A self-checking device for dynamic response characteristics of liquid flowmeter
  • A self-checking device for dynamic response characteristics of liquid flowmeter
  • A self-checking device for dynamic response characteristics of liquid flowmeter

Examples

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Embodiment 1

[0030] Such as figure 1 As shown, this embodiment includes

[0031] A liquid storage tank 1, the liquid storage tank 1 is used to store and provide single-phase liquid;

[0032] An electric reciprocating pump 2, the electric reciprocating pump 2 is connected to the liquid storage tank 1, and is used to drive the single-phase liquid in the pipeline;

[0033] A flow regulating valve A4, the flow regulating valve A4 is connected to the electric reciprocating pump 2, and is used to regulate the flow of the fluid in the main line;

[0034] A fast switch valve 3, the fast switch valve 3 is connected in parallel with the flow regulating valve A4, and is used to regulate the dynamic change of the fluid flow;

[0035] The flow meter 6 to be tested is connected in series with the flow regulating valve A4 for detecting the dynamic flow rate of the fluid to be tested, and the fast switching valve 3, the flow regulating valve A4 and the flow meter 6 to be tested are Constitute the test ...

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Abstract

The invention discloses a self-inspection device for dynamic response characteristics of a liquid flowmeter, which includes a liquid storage tank, an electric reciprocating pump, a flow regulating valve, a fast switching valve, a pressure reducing valve, a data acquisition module, a flowmeter to be tested and a computer; The reasonable configuration of the regulating valve and the fast switching valve produces an adapted periodic oscillating flow, and then evaluates its dynamic response characteristics based on the amplitude distortion judgment method based on the steady-state maximum, minimum flow and dynamic pulsation amplitude measured by the flowmeter itself, to achieve automatic purpose of inspection.

Description

technical field [0001] The invention relates to the technical field of dynamic flow measurement, in particular to a self-checking device for dynamic response characteristics of a liquid flow meter. Background technique [0002] Fluid flow measurement widely exists in modern science and engineering fields such as aviation and navigation, petroleum industry and nuclear energy. With the expansion of application fields and the advancement of science and technology, there is an urgent need for the measurement of dynamic flow. Dynamic flow refers to the superimposition of periodic or random fluctuations on steady flow. Existing flowmeters, such as electromagnetic flowmeters, differential pressure flowmeters, ultrasonic flowmeters, turbine flowmeters, etc., are generally suitable for steady-state conditions. When measuring dynamic flow, the dynamic response characteristics of the flowmeter need to be considered. If the dynamic response is slow and the response time is long, the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F25/00
CPCG01F25/10
Inventor 熊挺闫晓昝元峰
Owner NUCLEAR POWER INSTITUTE OF CHINA
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