Vortex Seal Strip: Revolution in Fluid Sealing for High-Speed Rotating Equipment

Vortex Seal Strip

In high-end equipment sectors such as aero-engines, hydrogen compressors, and semiconductor vacuum systems, the vortex seal strip achieves nanoscale fluid control at rotating interfaces through precision logarithmic spiral geometry. Test data confirms:

Critical speed: 42,000 rpm
Helium leakage rate: ≤1.5×10⁻⁷ Pa·m³/s
Friction power loss: 19% of mechanical seals

I. Core Structure & Working Principle

1. Three-Layer Functional Design

Component	Material System	Performance Parameter
Spiral Groove Base	Ni-based superalloy (GH4169)	CTE: 3.8×10⁻⁶/K (20-800°C)
Seal Strip Array	Graphene-modified PI (PI/Gr)	Flexural strength: 452MPa @300°C
Radial Compensation	Belleville Springs (17-7PH SS)	Preload gradient: 50±3 N/mm

2. Dynamic Sealing Mechanism

Reverse Pressure Generation: Coriolis effect in spiral grooves creates 1:12 pressure ratio
Nano Gas Film Barrier: 0.5-3μm gap maintains 10⁸ N/m³ gas film stiffness
Self-Cleaning: Clears 99.2% of >5μm particles at >200m/s linear velocity

II. Performance Breakthroughs

1. Extreme Condition Adaptability

Parameter	Range	Validation Case
Temperature Range	-253°C to 850°C	CJ-1000A Engine (2500 thermal cycles)
Speed Capacity	42,000 rpm	NASA-Glenn Test Certification

2. Zero Contamination Guarantee

Medium	Leakage Rate	Certification
He	≤1.5×10⁻⁷ Pa·m³/s	ASME PTC 19.1
H₂	3.2×10⁻⁹ mol/(m·s)	ISO 15848-1

3. Energy Efficiency & Maintenance Revolution

Metric	Mechanical Seal	Vortex Seal Strip	Improvement
Friction Loss	35.2 kW	6.8 kW	↓80.7%
Cooling Water	8.5 L/min	0	100% savings
Maintenance Cycle	3 months	24 months	↑700%

III. Industrial Application Parameters

Application Field	Linear Velocity (m/s)	Pressure Range	Service Life
Aero-Engines	420	0.2-3.5 MPa	25,000 hours
Hydrogen Compressors	280	0.8-2.0 MPa	40,000+ hours
EUV Lithography Vacuum	9.5	<10⁻⁵ Pa	Lifetime maintenance-free

Technical Conclusion: Redefining Boundaries of Rotating Seals

The vortex seal strip achieves three revolutionary advances through geometric topology and materials science:

Conquers Physical Limits: Covers -253°C to 850°C, withstands 42,000 rpm
Ensures Purity: Molecular-level sealing (He leakage ≤1.5×10⁻⁷ Pa·m³/s)
Reinvents Efficiency: 80.7% friction reduction, eliminates cooling systems (saves 4,500 tons water/year/unit)

When SpaceX's Raptor engine operates at 1,056 rad/s, this micron-scale spiral line defends the frontiers of advanced engineering with nanoscale precision.

[DLSEALS kindly Reminder] Sealing issues? Turn to DLSEALS! As a sealing component manufacturer, we specialize in customizing sealing components, providing a full range of services from design, research and development, production, testing, and more. If you have more information you'd like to know, feel free to contact us directly. DLSEALS's product experts are dedicated to serving you!

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Vortex Seal Strip: Revolution in Fluid Sealing for High-Speed Rotating Equipment

​I. Core Structure & Working Principle​

​II. Performance Breakthroughs​

​III. Industrial Application Parameters​

​Technical Conclusion: Redefining Boundaries of Rotating Seals​

I. Core Structure & Working Principle

II. Performance Breakthroughs

III. Industrial Application Parameters

Technical Conclusion: Redefining Boundaries of Rotating Seals