Title:
COUPLING DEVICE, AND METHOD FOR FLUSHING SAME
Document Type and Number:
WIPO Patent Application WO/2023/134912
Kind Code:
A1
Abstract:
Disclosed is a self-closing emergency coupling and detachment device for transporting cryogenic fluid, comprising two fluid transport pipes (2, 3) that extend in a longitudinal direction and each comprise, at a connection end, a valve mechanism (4, 6, 8; 5, 7, 9) configured to automatically close the pipe when the connection ends are separated and allow the pipe to be opened when the connection ends are coupled together, the device (1) further comprising an outer tube (10, 11) that is arranged around each transport pipe (2, 3) and delimits a vacuum space for thermally insulating the transport pipe (2, 3), the device (1) being configured to delimit a defined sealed dead volume (24) between the coupled connection ends, characterized in that the device (1) comprises a system for draining the dead volume (24), the draining system being provided with a fluid circuit (30, 26) that is fluidically connected to the dead volume (24).
Inventors:
COLEIRO GAETAN (FR)
BIZEL LOUIS (FR)
PENNEC YANN (FR)
BIZEL LOUIS (FR)
PENNEC YANN (FR)
Application Number:
PCT/EP2022/082954
Publication Date:
July 20, 2023
Filing Date:
November 23, 2022
Export Citation:
Assignee:
AIR LIQUIDE (FR)
International Classes:
F16L23/12; B67D1/00; F16L29/04; F16L39/00; F16L59/18
Foreign References:
| EP3581839A1 | 2019-12-18 | |||
| US20090123221A1 | 2009-05-14 | |||
| EP3321229A1 | 2018-05-16 | |||
| JPS6091889U | 1985-06-22 | |||
| US20090261578A1 | 2009-10-22 |
Attorney, Agent or Firm:
DE CUENCA, Emmanuel (FR)
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