Core Technology Analysis of Scroll Compressors: End-Face Sealing Strips

Ⅰ. Core Functions​

1. ​Blocking Internal Leakage​

   • Seals micro-axial gaps between orbiting and fixed scroll wraps, preventing backflow of high-pressure gas to low-pressure chambers.

   • Reduces volumetric efficiency loss by 5%-15%, directly improving COP/EER.

​Ⅱ. Structural Design & Materials​

​Ⅲ. Self-Adaptive Sealing Principle​

1. ​Initial Preload: 0.1mm minimum protrusion provides baseline sealing force.

2. ​Pressure-Activated Sealing: Gas pressure dynamically forces scrolls axially toward strips (sealing force ∝ system pressure).

​Ⅳ. Key Performance Requirements​

• ​Wear Resistance: Service life >100,000 hrs @ linear speed >2m/s.

• ​Anti-Cold Flow: Withstands plastic deformation under >20MPa pressure.

​Ⅴ. Failure Modes & Maintenance​

​Ⅵ. Impact on Compressor Performance​

• ​5-15% efficiency gain​ via leakage reduction.

• ​>5dB noise reduction​ by eliminating gas blow-by.

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