What are the characteristics of a fully premixed surface combustion engine?

2024/07/24

What are the characteristics of a fully premixed surface combustion engine?
The fully premixed surface combustion engine is widely used in vertical boilers. This type of combustion engine thoroughly mixes gas and air before entering the combustion chamber, making combustion more complete, improving combustion efficiency, and reducing the release of harmful gases. It is currently one of the more advanced gas combustion technologies on the market, and the pollutant emissions can fully meet the national standard emissions. So, what are the characteristics of the fully premixed surface combustion engine? Today, let’s talk together.
1. Due to the fine pores and certain thickness of the medium in the furnace head of the metal fiber burner, the temperature difference between the inner and outer surfaces of the medium is large, and the tempering tendency of the metal fiber burner is lower, making it safe and reliable.
2. At lower output, the metal fiber burner can adopt radiation heat transfer method, which can increase the efficiency of heat exchange.
3. It has a smaller thermal inertia, so it heats up and cools faster, reaches infrared in a very short time, and has a sensitive temperature control response.
4. Due to the compact structure of premixed flames, this advantage can be utilized in the design of combustion chambers to reduce their size.
5. Convenient to obtain a large proportion of power adjustment range. Stable combustion can be achieved at a thermal intensity of 100-15000 kW/m2.
6. The traditional high-pressure jet gas burner adopts diffusion combustion, while the metal fiber burner adopts a fully premixed surface combustion method. In the case of a small excess air coefficient, the combustion is more complete, resulting in high thermal efficiency and low CO emissions.
7. The metal fiber burner significantly reduces combustion noise, thus reducing flue noise, making it particularly suitable for use in residential areas.
8. The flame of the metal fiber burner is short and uniform, without the local high temperature zone of traditional jet burners, and the flame hole intensity is low, resulting in a significant reduction in NOx production.
The fully premixed surface combustion engine is not limited to vertical boilers, but can be used in many boilers. After all, the application of this advanced gas combustion technology will definitely occupy a market share in the future.

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