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Method and system for detecting flow rate of high-temperature molten fluid

A technology of fluid flow rate and high-temperature melting, which is applied in liquid/fluid solid measurement, measurement flow/mass flow, measurement capacity, etc., and can solve the problem of low detection accuracy of molten fluid flow rate

Active Publication Date: 2020-04-24
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The method and system for detecting the flow velocity of high-temperature molten fluid provided by the present invention solve the existing technical problem that the detection accuracy of the flow velocity of molten fluid with high temperature, high speed, and high light is not high

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  • Method and system for detecting flow rate of high-temperature molten fluid
  • Method and system for detecting flow rate of high-temperature molten fluid
  • Method and system for detecting flow rate of high-temperature molten fluid

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Embodiment 1

[0088] refer to figure 1 , the method for detecting the flow rate of a high-temperature molten fluid provided in Embodiment 1 of the present invention includes:

[0089] Step S101, collecting video streams of high-temperature and high-speed molten fluid;

[0090] Step S102, decomposing the video stream into time-ordered frame image sequences, and extracting the molten fluid region of interest in the frame image sequences;

[0091] Step S103, extracting the molten fluid profile of the molten fluid region of interest;

[0092] Step S104, extracting feature blocks of the outline of the molten fluid, and obtaining the flow velocity of the molten fluid based on the feature blocks, specifically, the feature blocks are ripples or shadows that appear during the high-speed outflow of the high-temperature molten fluid.

[0093] The method for detecting the flow velocity of the high-temperature molten fluid provided by the embodiment of the present invention collects the video stream o...

Embodiment 2

[0096] refer to figure 2 , the method for detecting the flow rate of a high-temperature molten fluid provided in Embodiment 2 of the present invention, comprising:

[0097] Step S201, collecting video streams of high-temperature and high-speed molten fluid.

[0098] Specifically, in the embodiment of the present invention, a video stream of high-temperature and high-speed melting fluid is collected by a high-speed camera.

[0099] Step S202, decomposing the video stream into time-ordered frame image sequences, and extracting the molten fluid region of interest in the frame image sequences.

[0100] Specifically, in this embodiment, after the video stream information of the high-temperature and high-speed melting fluid object is collected by a high-speed camera; Fluid region; then, image enhancement operation is performed on the region of interest and the contour of the molten fluid feature block is extracted by a single-pixel contour extraction module to obtain a binary fra...

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Abstract

The invention discloses a method and system for detecting the flow velocity of a high-temperature molten fluid. By collecting a video stream of a high-temperature and high-speed molten fluid, the video stream is decomposed into a time-ordered frame image sequence, and the molten fluid of interest in the frame image sequence is extracted. area, extract the molten fluid profile of the molten fluid area of ​​interest, extract the feature block of the molten fluid profile, and obtain the flow velocity of the molten fluid based on the feature block, which solves the problem of the current detection accuracy of the molten fluid with high temperature, high speed, and high light. High-temperature, high-speed, high-gloss melting can be achieved by using non-invasive acquisition of high-frame-rate video streams of high-temperature molten fluid outflow, and by accurately tracking and locating small target salient feature blocks on the molten fluid in real time. Fluid flow rate detection process. The method and the system have the advantages of high accuracy, strong stability, long period, are suitable for high-temperature or super-high-speed flowing fluids, and have low investment costs and the like.

Description

technical field [0001] The invention mainly relates to the technical field of high-temperature molten fluid flow velocity detection, in particular to a high-temperature molten fluid flow velocity detection method and system. Background technique [0002] In the metallurgical industry, ferrous metals and non-ferrous metals are mostly extracted from ores or concentrates by pyrometallurgy under high temperature conditions, and crude metals or metal concentrates and slags in molten state are produced from high-temperature closed reaction furnaces. High-speed outflow, such as molten iron flowing out of the blast furnace taphole in the iron and steel industry process, matte out of the reverberatory furnace in the pyrometallurgical copper smelting process, crude zinc out of the smelting furnace in the pyrometallurgy process of zinc smelting, etc. The change trend of the pressure in the reaction furnace is an important indicator to characterize whether the reaction furnace is runnin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/32G06K9/46G06K9/62G06T7/507G06T7/73G01F1/7086G06V10/25G06V10/42G06V10/44
CPCG06T7/507G06T7/73G06V20/40G06V10/25G06V10/44G01F1/7086G06F18/22G01F1/712G06T7/248G01F25/10G06V10/42Y02P10/20G06T7/80G01F15/00G06T2207/10016G06V20/49
Inventor 蒋朝辉何磊陈致蓬桂卫华潘冬阳春华谢永芳张海峰
Owner CENT SOUTH UNIV
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