Title:
DEVICE FOR ROBOTICALLY INTERNALLY INSULATING A WELDED PIPELINE JOINT
Document Type and Number:
WIPO Patent Application WO/2020/256589
Kind Code:
A3
Abstract:
The invention relates to pipeline construction and can be used for internally insulating a welded joint between pipes with an internal protective coating. A device for internally insulating a welded pipeline joint comprises a sealing assembly (10) including a cylindrical housing and a cylindrical working member coaxially fastened thereon and configured for radial expansion upon the generation of excess pressure in a cavity thereof. Inside the housing are a sealing compound feed assembly (12), a dosing device for components of the sealing compound, which is formed by a piston assembly (11), and a pneumatic control assembly (13). In the dosing device, working cavities for each component of the sealing compound are connected to the sealing compound feed assembly (12). The elastic working member is configured with a conduit for feeding sealing compound into an annular gap in the region of a welded joint, said conduit being connected to the compound feed assembly (12), and with a conduit for pumping air out of said annular gap. The pneumatic control assembly (13) is designed to be capable of controlling the functioning of the dosing device and of the sealing compound feed assembly (12) and of generating excess air pressure in the cavity of the working member of the sealing assembly (10).
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Inventors:
CHUIKO ALEKSANDR GEORGIEVICH (RU)
CHUIKO ANASTASIA ALEKSANDROVNA (RU)
CHUIKO ANASTASIA ALEKSANDROVNA (RU)
Application Number:
PCT/RU2020/000384
Publication Date:
March 18, 2021
Filing Date:
July 27, 2020
Export Citation:
Assignee:
CHUIKO ALEKSANDR GEORGIEVICH (RU)
International Classes:
F16L58/02; B05C7/08; F16L13/02; F16L101/16
Domestic Patent References:
| WO2008077369A2 | 2008-07-03 |
Foreign References:
| US4780072A | 1988-10-25 | |||
| RU2677913C1 | 2019-01-22 |
Attorney, Agent or Firm:
PILISHKINA, Liudmila Stanislavovna (RU)
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