A device and method for local dry welding of corner regions of underwater installations
By designing a local dry welding device for the corner areas of underwater facilities, and utilizing the sliding connection between the upper and lower shells and the drainage of protective gas, the problem of dead zones in underwater welding was solved, and effective repair of the corner areas was achieved.
CN117066637BActive Publication Date: 2026-05-29SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE CO LTD
- Filing Date
- 2023-08-29
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
Existing underwater local dry welding techniques cannot effectively repair defects and leaks in the corners and surrounding areas of underwater facilities, resulting in welding dead zones.
Method used
A local dry welding device for the corner areas of underwater facilities was designed. By sliding the upper shell and the lower shell together, a closed welding space is formed. The device is filled with watertight welding equipment and protective gas for filling and draining, so as to achieve local dry welding of the corner areas.
Benefits of technology
Effective welding of the edges and corners of underwater facilities and surrounding areas was achieved, solving the problem of welding dead zones and ensuring repair quality and safety.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117066637B_ABST
Abstract
The application provides a local dry welding device and method for a corner area of an underwater facility, and belongs to the technical field of underwater welding. The device comprises an upper shell, a lower shell and a water-tight welding device. The upper shell is in sliding connection with the lower shell, and the water-tight welding device is fixed on the upper shell. The lower shell and the wall surface of the corner area of the underwater facility form a closed welding space. The device can realize welding on the corner and the nearby area, and solves the problem of welding dead zone in the prior art, and the problem that underwater local dry welding cannot be performed on the corner and the nearby area.
Need to check novelty before this filing date? Find Prior Art