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Dynamic response characteristic self-checking device of fluid flowmeter

A liquid flow meter, dynamic response technology, applied in liquid/fluid solid measurement, measurement device, test/calibration volume flow, etc. The effect of wide applicability

Active Publication Date: 2016-09-28
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Dynamic response characteristic self-checking device of fluid flowmeter
  • Dynamic response characteristic self-checking device of fluid flowmeter
  • Dynamic response characteristic self-checking device of fluid flowmeter

Examples

Experimental program
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Embodiment 1

[0030] like 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 pip...

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Abstract

The invention discloses a dynamic response characteristic self-checking device of a fluid flowmeter. The device comprises a fluid storage tank, an electric reciprocating pump, a flow control valve, a fast switching valve, a pressure-reducing valve, a data acquisition module, a to-be-measured flowmeter, and a computer. Through rational configuration of the flow control valve and the fast switching valve, adaptive periodic oscillation flow is generated, and maximum and minimum flow in a steady state and dynamic pulse amplitude measured by the flowmeter are used, based on an amplitude distortion determination method, dynamic response characteristic of the flowmeter is assessed, so as to achieve an objective of self-checking.

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 Applications(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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