Metal Random Packing

Metal Triangular Fenske Spiral Ring

Triangular spiral ring packing is a high-efficiency chemical packing, also known as triangular packing, which belongs to Fenske Spiral packing. Because its shape is similar to a spring, it is also called triangular spring packing.The triangular spiral packing is made of metal wire, and the triangular spiral structure is staggered with adjacent coils at a certain angle to form a polygonal end face. This structure greatly increases the specific surface area of the packing.

product details

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Fenske Spiral Applications

Laboratory and Nuclear Industry

Primarily used in laboratories, especially in the nuclear industry, for isotope separation and purification.

Chemical and Environmental Protection

In chemical plants, it is commonly used for absorption, degassing, extraction, and separation operations. In the environmental protection sector, it can be used for waste gas and wastewater treatment, effectively removing harmful substances and pollutants.

Other Industries

It can also be used in oil and gas processing, the food industry, and pharmaceutical processes.

technical parameter

Spec	Tower Diameter (mm)	Theoretical plate (PCS/m)	Material	Operating pressure	Spec
(mm)	Tower Diameter (mm)	Theoretical plate (PCS/m)	Material	Operating pressure	(mm)
1.75×1.75	50	60-70	Benzene, CCl4	Normal pressure	1.75×1.75
2.5×2.5	50	60-70	Benzene, CCl4	Normal pressure	2.5×2.5
3×3	18	50-80	Benzene, CCl4	Normal pressure	3×3
4×4	50	25-40	Benzene, CCl4	Normal pressure	4×4
5×5	50	20-30	Benzene, CCl4	Normal pressure	5×5
6×6	82	14-20	Ammonia	3kg/cm2 absolute pressure	6×6
7×7	82	11~13	Ammonia	3kg/cm2 absolute pressure	7×7
7×7	96	8~10	N-Heptanes, Toluene	Normal pressure	7×7
8×8	82	10~11	Ammonia	3kg/cm2 absolute pressure	8×8

Performance Advantages

High mass transfer efficiency: The unique structural design increases the gas-liquid contact area. In laboratory tests, the theoretical plate count of 3mm φ packing can reach 50-80 per meter, a 20%-30% increase compared to traditional theta-ring packing.

Excellent fluid dynamics: The triangular spiral structure promotes multi-scale vortex formation in the fluid, reducing flow resistance. A retrofit case study at a chemical company showed that the use of triangular spiral packing reduced tower pressure drop by 18%, increased throughput by 12%, and effectively alleviated flooding.

Fouling and corrosion resistance: The unique surface geometry of the packing reduces particle adhesion. Combined with materials such as polypropylene and polytetrafluoroethylene, it can operate stably in acidic and alkaline environments with a pH range of 2-12. In a wet H₂S environment containing Cl⁻ ...

High mechanical strength: With good mechanical strength and wear resistance, it can maintain stable operation for a long time under the impact of high-speed fluid and solid particles, reducing the frequency of maintenance and replacement.