DEGASSING APPARATUS FOR FLEXIBLE JOINT OF HIGH-VOLTAGE DIRECT-CURRENT SUBMARINE CABLE, AND DEGASSING MONITORING SYSTEM AND METHOD THEREFOR - ELECTRIC POWER RES INSTITUTE CHINA SOUTHERN POWER GRID

Title:

DEGASSING APPARATUS FOR FLEXIBLE JOINT OF HIGH-VOLTAGE DIRECT-CURRENT SUBMARINE CABLE, AND DEGASSING MONITORING SYSTEM AND METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2022/237070

Kind Code:

A1

Abstract:

Disclosed in the present invention are a degassing apparatus for a flexible joint of a high-voltage direct-current submarine cable, and a degassing monitoring system and a degassing monitoring method. The degassing apparatus is provided, in a shell, with a degassing cavity used for having a flexible joint placed therein, and is provided, on the shell, with a vacuum pump interface, an exhaust port and two cable interfaces, such that the flexible joint is placed in the degassing cavity of the shell by means of the cable interfaces. A heating module is arranged at the bottom of the shell, a detection end of a temperature detection module is arranged inside the shell, a pressure detection module is arranged outside the shell, and a controller is provided and is connected to the heating module, such that the flexible joint of a cable can be degassed under a preset temperature and pressure values, so as to perform separate degassing processing on the flexible joint, such that the problem of the degassing effect of the flexible joint of the cable not being ideal due to the flexible joint and the cable being placed in degassing chambers under the same degassing condition and being subjected to degassing processing at the same time can be avoided.

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Inventors:

HOU SHUAI (CN)
FU MINGLI (CN)
ZHANG YIFAN (CN)
LI XIAOLIN (CN)
HUI BAOJUN (CN)
ZHU WENBO (CN)
FENG BIN (CN)
WANG QINGHONG (CN)

Application Number:

PCT/CN2021/124842

Publication Date:

November 17, 2022

Filing Date:

October 20, 2021

Export Citation:

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Assignee:

ELECTRIC POWER RES INSTITUTE CHINA SOUTHERN POWER GRID (CN)

International Classes:

H02G1/14; G01D21/02

Foreign References:

CN113346415A	2021-09-03
JPH08168133A	1996-06-25
CN105548825A	2016-05-04
CN205367784U	2016-07-06
CN102426885A	2012-04-25

Attorney, Agent or Firm:

SCIHEAD IP LAW FIRM (CN)

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