Dynamic seal test device for cryogenic fluid medium

US11333571B2 · kind B2 · utility

Assignee

• Dalian University of Technology · CN

Inventors

• Yongqing Wang · 东风镇, CN
• Lingsheng HAN · 东风镇, CN
• Kuo Liu · Dalian, CN
• Fanze KONG · 东风镇, CN
• Haibo Liu · 东风镇, CN
• Yongquan Gan · 东风镇, CN
• Minghua Dai · Plymouth, US

Key dates

• Filing date: Sep 16, 2019
• Grant date: May 17, 2022
• Expiry date: Sep 16, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G01M3/36
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention provides a dynamic seal test device for cryogenic fluid medium. The dynamic seal test device includes stator unit, rotor unit, slipway, servo motor unit and sensors. The tested seal is installed inside the stator, and the thermal insulation stator and vacuum rotor together form a dynamic seal test structure. The seals and shaft sleeves can be flexibly replaced, which is beneficial to study the influence of different seal types, structure, and seal land configurations on the sealing performance. The servo motor provides power for the rotor and controls the rotation speed. The device greatly improves the thermal insulation capacity to avoid the gasification for the cryogenic fluid medium induced by the heat transfer from environment so that ensuring the stability of the test device.