Green and low-carbon boiler technology: an important force to promote energy transformation and envi

Green and low-carbon boiler technology: an important force to promote energy transformation and envi

With the severe challenges of global climate change and the increasing awareness of environmental protection, green and low-carbon boiler technology has become the key to promoting energy transformation and achieving sustainable development goals. Boilers, as important energy conversion equipment, are widely used in industries such as electricity, heating, petrochemicals, chemicals, steel and non-ferrous metals. Their energy efficiency and emission levels directly affect energy consumption and environmental pollution. Therefore, the development of green and low-carbon boiler technology is not only a response to the needs of national policies, but also an inevitable choice for enterprises to enhance their competitiveness and achieve sustainable development.

1. Characteristics of green and low-carbon boiler technology

Green and low-carbon boiler technology takes energy conservation and emission reduction as its core goals, and adopts advanced technologies and equipment to achieve efficient utilization and environmental protection during boiler operation. These technologies mainly include high-efficiency heat exchange technology, circulating fluidized bed technology, low-nitrogen combustion technology and intelligent control technology.
High-efficiency heat exchange technology: By optimizing the internal structure of the boiler, improving the heat transfer efficiency, and achieving efficient use of fuel. For example, the use of high-efficiency heat exchangers such as spiral finned tubes or composite tube bundles can significantly improve the heat exchange effect and reduce fuel consumption and carbon emissions.
Circulating fluidized bed technology: Utilizes the buoyancy and gravity of granular materials to achieve full combustion of coal. This technology has the advantages of high combustion efficiency, low smoke and nitrogen oxide emissions, and is one of the important technologies for green, environmentally friendly and energy-saving boilers.
Low nitrogen combustion technology: Reduces the generation of nitrogen oxides by adjusting the oxygen and fuel supply ratio during the combustion process. Energy-saving boilers using this technology can not only improve combustion efficiency, but also significantly reduce nitrogen oxide emissions, achieving the goal of green, environmentally friendly and energy-saving.
Intelligent control technology: Automatically adjust parameters such as fuel supply, air volume and exhaust temperature according to actual heat load requirements to achieve efficient operation of the boiler and energy conservation. This technology helps to improve the automation and intelligence level of the boiler and reduce operating costs.

2. Application examples of green and low-carbon boiler technology

Built-in waste heat boiler in the main flue of the sintering machine in the steel plant: This technology arranges the waste heat boiler heat exchange surface in the main flue of the sintering machine to recover the high-temperature waste heat generated during the sintering process and generate superheated steam for production or power generation. This technology not only reduces the exhaust temperature of the main flue, achieves the purpose of energy saving and consumption reduction, but also improves energy utilization efficiency. For example, the built-in waste heat boiler project of the main flue of the sintering machine of Liuzhou Iron and Steel Company saves about 6,160 tons of standard coal annually, with good economic and environmental benefits.
Condensing waste heat recovery boiler: The exhaust temperature of traditional boilers is high, and the water vapor in the flue gas is still in an overheated state, and the latent heat of vaporization is not fully utilized. The condensing waste heat recovery boiler improves the thermal efficiency by lowering the exhaust temperature and fully recovering the sensible heat in the flue gas and the latent heat of condensation of water vapor. At the same time, condensed water can also be recycled, further saving water resources.

3. Development trend of green and low-carbon boiler technology

Diversified energy utilization: With the adjustment of energy structure and the development of new energy, green and low-carbon boiler technology will pay more attention to the utilization of diversified energy. For example, in areas rich in solar energy resources, thermal storage boilers coupled with solar energy can be developed; in areas rich in industrial waste heat, waste heat boilers can be used preferentially.
Intelligence and automation: With the rapid development of information and intelligent technology, green and low-carbon boiler technology will pay more attention to the improvement of intelligence and automation levels. By installing distributed control systems and monitoring information service platforms, real-time monitoring and optimization adjustment of boiler operation data can be realized to improve the operating efficiency and safety of boilers.
Standardization and normalization: In order to promote the widespread application and standardized development of green and low-carbon boiler technology, the country will formulate and improve relevant standards and specifications. This will help improve the design and manufacturing level, operation and management level, and energy conservation and environmental protection level of boilers, and promote the transformation and upgrading and high-quality development of the boiler industry.
In summary, green and low-carbon boiler technology is an important force in promoting energy transformation and environmental friendliness. By adopting advanced technology and equipment, optimizing boiler design and management, and strengthening policy support and supervision, the energy efficiency and environmental protection level of boilers can be continuously improved, making positive contributions to achieving sustainable development goals.

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