Flame temperature field particle gas concentration field measurement method based on hyperspectral image

A hyperspectral image and flame temperature technology, applied in the field of measurement based on the furnace flame image, to achieve the effect of measuring more flame parameters, short calculation time, and simple equipment

Active Publication Date: 2018-06-15
ZHEJIANG UNIV
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current research on field parameter reconstruction based on flame images mainly focuses on the reconstruction of temperature field and the influence of particles.
Since the image obtained by the traditional

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flame temperature field particle gas concentration field measurement method based on hyperspectral image
  • Flame temperature field particle gas concentration field measurement method based on hyperspectral image
  • Flame temperature field particle gas concentration field measurement method based on hyperspectral image

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038]First of all, it should be noted that the various calculation methods used in the present invention, if not explicitly stated, are knowledge content known or mastered by those skilled in the art, such as least square decomposition, Tikhonov regularization method or truncated singular value Decomposition algorithms, optical reciprocity theorem, methods based on inverse ray tracing, line-by-line calculation methods or statistical narrow-band models, etc. Because it does not belong to the key explanation content of the present invention, it will not be described in detail.

[0039] The present invention simultaneously measures flame three-dimensional temperature field, particle concentration field and gas concentration field online based on hyperspectral images, and the method includes the following steps:

[0040] (1) Using the imaging system constructed by the front-end lens, liquid crystal tunable filter, optical delay lens and CCD camera, the radiation image information...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a combustion process measurement technology and provides a flame temperature field particle gas concentration field measurement method based on a hyperspectral image. The method comprises building a hyperspectral flame imaging system, acquiring spatial and spectral radiation image information of flame, building a model and an algorithm according to a flame radiation transfer process and a reverse ray tracing process, calculating a flame temperature, a particle concentration and a gas concentration through the hyperspectral image of flame, and simultaneously reconstructing a flame three-dimensional temperature field, a particle concentration field and a gas concentration field. Compared with the traditional colorful camera, the measurement method can acquire the spatial and spectral projection data of flame and rebuild the mold through a reverse ray tracing method, has short calculation time, realizes online real-time monitoring of flame and has the characteristics of more flame measurement parameters, simple device, short treatment process and real-time online monitoring of flame state change.

Description

technical field [0001] The invention relates to a combustion process measurement technology, in particular to a measurement method based on a furnace flame image. Background technique [0002] Combustion involves various types of complex multiphase flow and chemical reaction systems. It is a process of high temperature, high pressure, multi-objective, multi-constraint, and mutual coupling. The spatial distribution of key parameters such as temperature and concentration is directly related to whether the energy utilization process is Safety, economy and cleanliness are important ways to achieve safe operation of combustion equipment and energy saving and emission reduction. In particular, large coal-fired boilers have the characteristics of large space size and complex environment, and the three-dimensional distribution measurement of key parameters in the combustion process is challenging. Taking a 1,000MW pulverized coal combustion supercritical boiler as an example, the b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N21/31
CPCG01N21/31
Inventor 王飞谢正超严建华池涌黄群星倪明江岑可法
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap