In flue gas desulfurization systems, alongside durable spiral nozzles, Vortex Nozzles represent another essential category of atomization components. Their unique internal structure delivers finer atomization and superior mass transfer efficiency, playing an irreplaceable role in specific process stages.

1. Working Principle & Design Features

A vortex nozzle typically consists of a nozzle body, a vortex chamber (or swirl insert), and an orifice disc. Pressurized liquid enters the nozzle and is directed by the vortex chamber, generating high-speed rotational motion and intense centrifugal force. As the liquid exits through the precision-machined orifice, it instantly disperses into extremely fine droplets, creating a highly effective hollow cone spray with excellent atomization.

Its core features include:

• Fine & Uniform Atomization: Produces droplets with a small average diameter and a large specific surface area, significantly increasing the contact area with the flue gas.

• High Mass Transfer Efficiency: The fine droplets facilitate rapid chemical reactions (e.g., SO₂ absorption), improving desulfurization efficiency.

• Compact Design & Wide Flow Range: Flow rate and spray angle can be adjusted over a wide range by changing the vortex insert and orifice disc with different bore sizes.

2. Detailed Technical Specifications

The following table outlines the technical parameters and flow characteristics at low pressure for selected vortex nozzle sizes:

*Note: "6分" is commonly equivalent to 3/4" NPT. Different outlet bores correspond to different flow rates, allowing for precise selection based on actual process requirements (e.g., liquid-to-gas ratio).*

3. Core Material Properties (Reaction Bonded Process)

To meet the demanding requirements for wear and corrosion resistance in harsh environments, the critical components of our high-end vortex nozzles are made from specialty ceramic material produced via the Reaction Bonding process. This material offers exceptional comprehensive performance, ensuring long-term operational reliability and stability:

4. Comparison with Spiral Nozzles & Application Focus

• Wear Resistance: Vortex nozzles can also be manufactured from wear-resistant materials like silicon carbide. However, under extreme slurry abrasion, the absolute service life of their internal precision components (e.g., swirl inserts) may be slightly lower compared to the simpler design of spiral nozzles. Therefore, material selection (e.g., high-purity alumina, silicon carbide) is critical. The aforementioned reaction-bonded material provides an excellent wear-resistant substrate.

• Application Focus:

  • Spiral Nozzles: Primarily used in slurry spray levels, handling highly abrasive limestone/gypsum slurries with high solids content. They emphasize clog resistance and extreme wear durability.

  • Vortex Nozzles: Often employed for process water spray, mist eliminator washing, or in absorption stages requiring extremely fine atomization. Their superior atomization enhances absorption efficiency, reduces water consumption, and ensures uniform washing coverage.

5. Primary Application Scenarios

1. Mist Eliminator Washing Systems in Wet Scrubbers: Provides even, fine water spray for effective cleaning of demister blades, preventing scaling and blockage.

2. Flue Gas Quenching & Conditioning: Cools high-temperature flue gas rapidly before it enters a scrubber or baghouse.

3. Precision Chemical Absorption Stages: Delivers optimal atomization for processes requiring maximum gas-liquid contact efficiency.

4. Other Industrial Scrubbing & Waste Gas Treatment Applications.

Conclusion

The vortex nozzle is the ideal choice for applications demanding high-quality atomization and superior mass transfer efficiency. Through precise selection, high-performance reaction-bonded ceramic materials, and quality manufacturing, it can significantly enhance the overall performance and cost-effectiveness of flue gas purification systems. Together with spiral nozzles, they form a complementary and reliable core foundation for efficient environmental protection equipment.

For assistance in selecting the right nozzle for your system or to obtain a customized solution, please feel free to contact our technical team.