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Intelligent control method for black smoke elimination of venting torch based on image analysis

A venting torch and intelligent control technology, which is applied in the field of petrochemical enterprise venting torch control system, can solve problems such as large combustion-supporting steam flow, reduced equipment life, and black smoke pollution of the environment

Active Publication Date: 2022-08-02
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the experience of technicians, manual control often has problems such as not being timely and the flow rate of combustion-supporting steam being too large or too small. , Reduced equipment life

Method used

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  • Intelligent control method for black smoke elimination of venting torch based on image analysis
  • Intelligent control method for black smoke elimination of venting torch based on image analysis
  • Intelligent control method for black smoke elimination of venting torch based on image analysis

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Experimental program
Comparison scheme
Effect test

Embodiment

[0025] The first step: HD camera selection and image data collection.

[0026] Select but not limited to DS-2TD6236 thermal imaging dual-spectral network mid-mounted PTZ camera from Hikvision Digital Technology Co., Ltd., and use the manufacturer's supporting SDK (Software Development Kit) software to complete the video monitoring and collection of the venting flare combustion scene .

[0027] The second step: Torch image analysis program design and torch black smoke quality calculation. Methods as below:

[0028] ①Extraction of black smoke from the torch burning scene image:

[0029] First, the torch burning scene image needs to be separated in RGB color space. figure 1 As shown in the figure, under the background of clear weather, among the three RGB channels, the black smoke and black scenery of the B channel have the largest difference, and the flame area of ​​the R channel has the most obvious difference from other areas. Therefore, we extract the flame area through t...

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Abstract

The invention discloses an intelligent control method for black smoke elimination of venting torches based on image analysis. The method is based on image analysis technology and intelligent control technology, and applies visible light and infrared light high-definition cameras, upper computer and image analysis software, PLC controller and configuration software. , shoot the image of the torch burning scene through the high-definition camera, transmit the image to the host computer, use the image analysis technology to detect the black smoke quality in MATLAB, and transmit the calculated black smoke quality value to the PLC controller as a feedback value, and finally PLC control The output signal of the device controls the opening of the combustion-supporting steam valve to achieve smoke elimination. The invention obtains the initial value of the opening degree of the combustion-supporting steam electric valve through calculation, and uses the flare gas flow rate as the feedforward value to track the change of the flare gas flow rate in time. Based on image analysis technology, the black smoke quality data is used as a feedback signal, which has great advancement in the efficient combustion of torches and energy saving and emission reduction.

Description

technical field [0001] The invention belongs to a venting torch control system of a petrochemical enterprise, and uses image analysis technology and an intelligent control method to control the flow rate of the venting torch combustion-supporting steam, thereby eliminating black smoke, improving the torch combustion efficiency and reducing energy consumption. Background technique [0002] Vent flares widely exist in the industrial systems of petrochemical plants, oil refineries and other enterprises, and are a special combustion facility to ensure safe production of enterprises. When production accidents such as equipment failure, water outage, gas outage, power outage, fire, and misoperation occur, the production plant will emit a large amount of waste gas. . Therefore, no matter from the perspective of safety or ecological environment, it is inevitable to set up a venting torch system. However, the composition of flare exhaust gas is complex and time-varying, and the flo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G7/06F23G5/50F23L7/00
CPCF23G7/06F23G5/50F23L7/005F23G2207/60F23G2209/14
Inventor 乔俊飞谢晓添顾锞武利
Owner BEIJING UNIV OF TECH