LSS Natural Gas Fired Condensing Steam Boiler

Product Introduction and Feature
Introduction to Ultra-Low NOx Condensing Steam Boiler-Ultra-Low NOx Combustion Technology

Advanced water-cooled, fully-premixed ultra-low NOx combustion technology:
Fully premixed combustion involves pre-mixing the gas with air in a mixer. The mixed gas is then sent into the water-cooled combustion head installed inside the boiler. The combustion head ignites and releases heat, allowing the flame to form a flat combustion surface, with a flame length generally not exceeding 10cm. Inside the combustion, there is a flow of heat medium water that cools the flame and reduces its temperature, thereby suppressing the synthesis of NOx and achieving ultra-low nitrogen emissions.

Technical Features and Advantages:
Blue Flame (Flameless) Combustion with efficient heat transfer:
According to the wave-particle duality theory, shorter wavelengths provide greater heat transfer capabilities. With the same radiation surface, the heat transfer of blue flame (water-cooled, fully-premixed combustion) far exceeds that of red flame (conventional diffusion combustion).

Short Flame Combustion:
The combustion flame length is uniform, ranging from 0.35 MW to 100 MW, and is less than 0.1m. The combustion space is significantly smaller than that of traditional diffusion combustion, greatly reducing the overall size of hot water units (smaller unit footprint).

Working Principle
Sino-creation Ultra-Low Nitrogen Gas Condensing Steam Boiler:
This boiler adopts self-developed, water-cooled, premixed combustion technology, resulting in a short flame. It does not have the conventional furnace structure found in regular boilers. The flue gas is single-pass and equipped with a flue gas condenser, effectively recovering the waste heat from flue gas. This design combines the large evaporation heating surface of fire tube boilers with the heat transfer surface of water tube boilers, achieving a unique structure. Through a closed condensate water recovery system, high-temperature condensate water is directly sent back to the boiler for reuse, fully utilizing the heat energy in flue gas. It combines the sensible heat and latent heat of the flue gas heat, achieving heat recovery and utilization of high-temperature condensate water from the source. This approach not only saves fuel costs and operating expenses but also improves the overall boiler efficiency, meeting the requirements of
ultra-low nitrogen emissions. The operation becomes safer, more energy-efficient, and environmentally friendly compared to traditional diffusion combustion methods.