GB/T 46084-2025Technical specifications of flame-temperature image detection for coal-fired boiler (English PDF)
燃煤锅炉火焰温度图像检测技术规范
Open the GB/T 46084-2025 preview as PDF
This is a limited preview
Buy now to download the full PDF (24 pages)
Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
August 29, 2025
Implementation date
March 1, 2026
Scope
GB/T 46084-2025 is the English-translated version of 燃煤锅炉火焰温度图像检测技术规范.
GB/T 46084-2025 is the Chinese national standard covering reading the temperature field of a furnace from the flame's own image — the optical access and the cooling of a probe that sits in a boiler, the two-colour or spectral method and its calibration, the resolution and the update rate, the accuracy claimed, and the use of the field to balance combustion. First edition, in force from 1 March 2026. Issued on 29 August 2025, it has been in force since 1 March 2026.
Document preview — GB/T 46084-2025
National Standard of the People's Republic of China
- ICS
- 27.060.30
- Classification
- J 98
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- PrefaceIII
- IntroductionIV
- 1 Scope1
- 2 Normative references1
- 3 Terms and Definitions1
- 4 Basic principles, methods and requirements2
- 5 Composition of flame temperature image detection system3
- 6 Flame temperature image detection system layout and maintenance4
- 7 Flame Image Detector Calibration5
- 8 Flame temperature image detection5
- Appendix A (Informative) Principle of Flame Temperature Image Measurement7
- Appendix B (Informative) Image Storage Capacity Calculation Method14
- Appendix C (Informative) Schematic diagram of the layout of fixed flame temperature image detector16
- Appendix D (Informative) Flame Image Detector Calibration Method18
- Appendix E (Informative) Flame Temperature Image Calculation Method21
- Reference24
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document is proposed and coordinated by the National Technical Committee for Standardization of Boilers and Pressure Vessels (SAT/TC262).
This document was drafted by: China University of Mining and Technology, China Special Equipment Testing and Research Institute, North China Electric Power Research Institute Co., Ltd., Xi'an Thermal Engineering Research Institute Co., Ltd., Huazhong University of Science and Technology, Harbin Boiler Plant Co., Ltd., Dongfang Boiler Co., Ltd. of Dongfang Electric Corporation Co., Ltd., Shanghai Boiler Factory Co., Ltd., Southeast University, Shanghai Power Equipment Complete Design and Research Institute Co., Ltd., Beijing Jingneng Electric Power Co., Ltd.
Co., Ltd., Zhejiang Zheneng Electric Power Co., Ltd., Tianjin China Coal Energy North China Co., Ltd., Hangzhou Zhejiang University Tianyuan Technology Co., Ltd., Baotou No. 3 Thermal Power Plant of Northern United Electric Power Co., Ltd., Yangtze University, and Jiangsu Hanguang Intelligent Technology Co., Ltd.
The main drafters of this document are: Yu Bo, Li Jun, Liu Feng, Zhou Huaichun, Cheng Liang, Zhang Xiangyu, Sun Yipeng, Liu Chengyong, Lou Chun, Wang Fengjun, Ran Shenming, Gao Qin, Xu Chuanlong, Lü Weizhi, Zhao Kai, Liu Hongfang, Liu Jin, Bai Delong, Wang Jingjie, Xie Jia, Du Jun, Wang Zhun, Fang Yibo, Zhou Qiang, Qian Lishu, Liu Fang, Zou Jun, Zhang Yindi, and Zhou Yuanke.
Introduction
Flame temperature image detection is a flame temperature measurement method based on visible light image acquisition and processing, which can realize the flame image in real time.
It can accurately measure the flame temperature and has the advantages of non-contact measurement, real-time measurement of dynamic temperature field, wide temperature measurement range, multiple display modes and and remote monitoring, and is widely used in coal-fired boilers, oil-fired boilers, biomass boilers, waste incinerators, and the steel, chemical, and cement industries.
In recent years, the resolution and temperature measurement accuracy of flame temperature image detection have been continuously improved.
It plays an important role in the fields of flame temperature field measurement, combustion stability monitoring, etc., and is an important tool for realizing the digitalization and intelligence of boiler operation.
The development of flame temperature image detection technology can provide a reference for the research of basic combustion theory, the development of advanced combustion technology, and the combustion control of boilers and industrial furnaces.
Provide basic testing technology support.
Technical specification for flame temperature image detection of coal-fired boilers
1 Scope
This document provides the basic principles of coal-fired boiler flame temperature image detection technology, specifies the detection system hardware and software, layout and maintenance The technical requirements of flame protection, detector calibration, detection, etc. are proposed, and the calculation method of flame image detection is given.
This document is applicable to non-contact temperature image detection of coal-fired boiler flames, oil-fired boilers, biomass boilers, waste incinerators and coal-fired oil-fired boilers.
The non-contact image detection of industrial furnace flame temperature is implemented as a reference.
2 Normative references
GB/T 1576
GB/T 12145
GB/T 13277.1
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 flameimage
The flame radiation is converted into a visible light color image by the imaging element after analog-to-digital conversion.
3.2 flame image RGB value RGB valueofflameimage
The stimulation values of flame radiation in the three primary colors of red, green and blue.
Note. R refers to red, G refers to green, and B refers to blue.
3.3 Flame image imaging element flameimagecomponent
A CCD (charge coupled device) or CMOS (complementary metal oxide semiconductor) sensor to acquire flame images.
3.4
The temperature information image obtained after flame image processing.
3.5
The relative error between the flame image temperature detection value and the actual value.
3.6
Used for verification or calibration of radiation thermometers, with stable temperature control and clear emissivity, and the thermal radiation characteristics are close to the concave shape of a black body
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 24 pages — is available in the English PDF.
Referenced standards
Editions of GB/T 46084
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 46084-2025 | Technical specifications of flame-temperature image detection for coal-fired boiler | current edition | Current |
This page sells the current edition, GB/T 46084-2025. Earlier editions are listed for reference only.
How to Buy GB/T 46084-2025
- 1Add to cart. Click the "Buy GB/T 46084-2025" button on this page. You can add more standards before checkout.
- 2Checkout. Enter your email and billing details. Payment is processed securely by Stripe (cards, Apple Pay, Google Pay supported).
- 3Instant delivery (0–9 sec). Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4Invoice included. A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
GB/T 12145-2016 — Quality criterion of water and steam for power plant and steam-generating equipment
GB/T 1576-2018 — Water quality for industrial boilers
GB/T 15761-1995 — Design and construction rulesfor nuclear island systems of 2×600MW PWR nuclear power plants
Secure payment via Stripe
Payments accepted
GB/T 46084-2025
$425.00