Title:
配管の漏れを検出するための装置
Document Type and Number:
Japanese Patent JP6636621
Kind Code:
B2
Abstract:
This invention relates to the sphere of main pipelines used for hot water supply, specifically to devices for electric surveillance control and water heat carrier leakage detection on atomic electric power station pipelines and can be applied for operation of heat insulated pipes with a protective casing. This invention is aimed at accuracy gain in leakage detection for thermally insulated pipes covered with a protective casing composed of several sectors. The aim is reached through pipeline leakage detection device with a metal protective casing installed coaxially on a metal pipe 2 with a radial clearance 1, where casing is performed as a joint of, for example, four arch shaped metal sheets 4 bent across the pipe 2. Sheets 4 straight line edges 7 are joined with one another by means of a dielectric washer 8, and sheets 4 arch shaped edges 9 are joined with one another by means of a dielectric ring 10. Ring 10 flanks 15 and 16 have ring grooves 17 and 18 on them for sheets 10 arch shaped edges 9 installation. Across each sheet 10 arch shaped edge 9 there are lamels shaped electric connectors 21 installed in ring grooves 17 and 18 for sheet 4 arch shaped edge 9 fixation. Electric connector terminals 30 are fastened on the ring 10 external surface 22 and are separately connected to each lamel 21. Measurement instrument 33 is connected to a metal pipe 2 contact terminal 31 by means of electric cords 32 and to the ring 10 contact terminals 30 for thermal insulation 3 in a radial clearance 1 for measurements of electric resistance. Maintenance simplification provides a techno-economic effect for thermal insulated pipelines covered with a protective casing. 1 independent claim of claims, 3 dependant clams of claims, 8 figures.
Inventors:
Post Nikov Boris Alexevich
Kazachikova Genaida Semionovna
Mishin Evgeny Borisovic
Nikitina Elena Alexandrovna
Kazachikova Genaida Semionovna
Mishin Evgeny Borisovic
Nikitina Elena Alexandrovna
Application Number:
JP2018515756A
Publication Date:
January 29, 2020
Filing Date:
May 25, 2016
Export Citation:
Assignee:
JOINT STOCK COMPANY ATOMENERGOPROEKT
International Classes:
G01M3/16; F16L55/00; F16L59/147; F17D5/06; G01M3/18
Domestic Patent References:
| JP48050790A | ||||
| JP56012531A | ||||
| JP58221143A | ||||
| JP50019484U |
Foreign References:
| US4332170 |
Attorney, Agent or Firm:
Patent business corporation Nakajima intellectual property integrated office