On July 25, 2024, Beijing Allinby Technology Co., Ltd. demonstrated its acoustic technology based acoustic temperature measurement solution jointly developed with North China Electric Power University at the seminar on the application of new technologies for thermal power transformation under the dual-carbon target in 2024 in Hefei, Anhui province. This solution aims to promote the green and low-carbon transformation of the thermal power industry and contribute to the realization of the dual-carbon goal.

According to the 2024-2025 Energy Conservation and Carbon Reduction Action Plan issued by The State Council on May 29, 2024, strengthening the clean and efficient use of coal and promoting the low-carbon transformation and construction of coal power have become an important part of the national strategy. As a key field of energy supply, the transformation of thermal power industry has far-reaching significance for the energy revolution.

At the seminar, Shen Guoqing, expert advisor of Beijing Allinby Bay, deputy director of the Academic Affairs Office of North China Electric Power University and doctoral supervisor, delivered a keynote speech and introduced in detail the "Application of combustion temperature field visualization system based on sound sensing technology". He pointed out that thermal power flexible depth peak regulation is an inevitable choice to serve the national dual-carbon strategy, and acoustic temperature measurement solutions are one of the key technologies in this transition process. The solution has formed a complete set of acoustic sensing and diagnosis technology of high temperature field in the furnace with completely independent intellectual property rights, filling the gap in the field in China, with non-contact, high-precision monitoring, real-time online monitoring and early warning and intelligent management.

The high-precision monitoring capability of the acoustic temperature measurement solution can achieve the path temperature accuracy of less than 1%, the temperature measurement resolution is 0.1℃ at normal temperature, and the temperature measurement resolution is 3℃ at hot state, which provides reliable temperature monitoring data for the power plant. The visual interface can present the combustion intensity, flame eccentricity coefficient and isotherm diagram of the furnace section in real time, and realize intelligent management. Data show that after the adoption of this scheme, the boiler long-term optimization operation, can improve the combustion efficiency of 0.5%, the unit power supply coal consumption can be reduced by at least 0.5g/kWh, while reducing carbon dioxide emissions, installed capacity of 600MW coal-fired power plant, annual carbon dioxide emission reduction of not less than 260,000 tons.

At present, the furnace temperature measurement solution of Beijing Allinby Technology has been successfully applied to a number of domestic power plants, including National Energy Group, Huadian Group and so on. The person in charge of the company said that in the future, it will not only continue to optimize the acoustic temperature measurement program, but also explore acoustic array positioning, acoustic agglomeration, voicing recognition and other acoustic innovation technologies to provide effective support for real-time monitoring of the status of power station equipment, and help the innovative development of key areas such as green low-carbon transformation, intelligent operation and maintenance of the thermal power industry.