Online measurement device for fineness of boiler coal powder on basis of image processing

A pulverized coal fineness and image processing technology, applied in the direction of measuring devices, particle size analysis, instruments, etc., can solve the problems of not meeting the real-time adjustment needs of boilers, high maintenance costs, long measurement cycles, etc., and achieve the effect of real-time online measurement

Pending Publication Date: 2017-08-18
广州敏远能源科技有限公司
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Problems solved by technology

This sampling off-line method has a long measurement cycle and high maintenance costs, and cannot meet the real-time adjustment needs of the boiler

Method used

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  • Online measurement device for fineness of boiler coal powder on basis of image processing
  • Online measurement device for fineness of boiler coal powder on basis of image processing

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[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only illustrative illustrations of the present invention, and are not intended to limit it in any way.

[0025] like figure 1 As shown, the present invention provides an online measuring device for fineness of boiler coal based on image processing, and the preferred embodiment includes: a constant velocity sampling part 2 for boiler pulverized coal, which is used for circulating constant velocity sampling of pulverized coal in the pulverized coal pipe; image online The measuring part 3 is used to obtain the sampled pulverized coal image and analyze it to obtain fineness parameters.

[0026] The boiler pulverized coal constant velocity sampling unit 2 is installed on the pulverized coal pipe 1 as follows: the curved sampling pipe 201 is installed on the pulverized coal pipe 1 th...

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Abstract

The invention provides an online measurement device for the fineness of boiler coal powder on the basis of image processing. The online measurement device comprises a boiler-coal-powder constant-speed sampling part and an image online-measurement part, wherein the boiler-coal-powder constant-speed sampling part is used for carrying out circulating constant-speed sampling on coal powder in a coal powder pipe; the image online-measurement part is used for obtaining a sampled coal powder image and analyzing to obtain fineness parameters. In the constant-speed sampling part, the coal powder in the coal powder pipeline forms negative pressure due to the ejecting action of compressed air in an ejector, enters a measurement section via a sampling pipe to finish sampling, and then enters a powder returning pipe by the ejecting action to realize circular sampling. In a pressure testing and processing unit, an air-flow control unit controls a compressed-air flow value to realize constant-speed sampling of the coal powder by measuring a total pressure value and a static pressure value of a measuring point in the coal powder pipe. In the image online-measurement part, a light source irradiates a measurement area, an image of coal powder particles is obtained by an imaging unit through a lens, and is transmitted to the image processing unit for processing by a communication cable to obtain the fineness of the coal powder, so that online measurement of the fineness is realized, and data support is provided for the need of real-time adjustment of a boiler.

Description

technical field [0001] The invention relates to a thermal testing device and method, in particular to a pulverized coal testing device and method. Background technique [0002] In order to improve the economy of power plant boiler operation, it is necessary to reasonably control the fineness of coal pulverized into the furnace. If the pulverized coal is too fine, the combustion will be incomplete, which will reduce the efficiency of the boiler; if the pulverized coal is too fine, it will increase the power consumption of the coal mill and reduce the dust removal effect. Therefore, the fineness of pulverized coal should be determined after comprehensive consideration of the requirements for pulverized coal fineness of the combustion coal type and the operating costs of coal mills. In the process of boiler combustion adjustment and operation, the fineness of pulverized coal should be measured, and the commissioning and operating personnel should be guided to adjust the operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/02
CPCG01N15/0227
Inventor 廖欲元何渊张少荣杨斌郭浩然
Owner 广州敏远能源科技有限公司
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