SU1291669A1 - Method of repairing flows in walls of metal linings of hydraulic structure - Google Patents
Method of repairing flows in walls of metal linings of hydraulic structure Download PDFInfo
- Publication number
- SU1291669A1 SU1291669A1 SU853930725A SU3930725A SU1291669A1 SU 1291669 A1 SU1291669 A1 SU 1291669A1 SU 853930725 A SU853930725 A SU 853930725A SU 3930725 A SU3930725 A SU 3930725A SU 1291669 A1 SU1291669 A1 SU 1291669A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- defect
- hole
- welding
- steel
- linings
- Prior art date
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Изобретение относитс к монтажу и ремонту стальных облицовок водоводов ГЭС. Целью изобретени вл етс повышение качества работ при наличии грунтовых вод в затрубном пространстве облицовок. Перед заваркой дефекта в облицовке вблизи дефекта выполн ют отверстие. Местоположение отверсти выбирают таким образом, чтобы выход щие из отверсти вода, а затем пар не мещали сварщику произвести заварку щвом исправл емого дефекта . После заварки дефекта заделывают отверстие стальной конической пробкой со стальным уплотнительным кольцом на ее цилиндрическом конце. Заделку отверсти ведут путем совместной запрессовки пробки с уплотнительным кольцом и последующей обварки по контуру Отверсти . 2 ил.g ND со О5 05 соThe invention relates to the installation and repair of steel linings of hydroelectric conduits. The aim of the invention is to improve the quality of work in the presence of groundwater in the annulus space facing. Before welding a defect in the lining, a hole is made near the defect. The location of the hole is chosen in such a way that the water coming out of the hole, and then the steam, does not allow the welder to brew the defect to be fixed by welding. After welding the defect, the hole is sealed with a steel conical plug with a steel sealing ring at its cylindrical end. Seal the hole lead by joint pressing tube with a sealing ring and subsequent obvarki along the contour Holes. 2 or ..g ND with O5 05 with
Description
Изобретение относитс к монтажу и ремонту стальных облицовок водоводов, включа заделанные в скалу трубопроводы, гидротехнического сооружени , а именно к способу исправлени различных дефектов в сварных стыковых швах и стенках трубо- провода.The invention relates to the installation and repair of steel linings of water conduits, including pipelines embedded in rock, hydraulic structures, and specifically to a method for correcting various defects in butt welds and pipeline walls.
Целью изобретени вл етс повышение качества работ при наличии грунтовых вод в затрубном пространстве облицовок.The aim of the invention is to improve the quality of work in the presence of groundwater in the annulus space facing.
На фиг. 1 изображен фрагмент обли- цовки с дефектом и технологическим отверстием; на фиг. 2 - разрез А-А на фиг. 1 (после исправлени дефекта).FIG. 1 shows a fragment of a lining with a defect and a technological aperture; in fig. 2 shows section A-A in FIG. 1 (after correcting the defect).
Способ исправлени дефектов осуществл етс следуюш,им образом:The method of correction of defects is carried out in the following way:
Обнаруженный дефект подвергают пред- варительной подготовке, содержание которой зависит в каждом конкретном случае от вида дефекта (трещина, раковина и т. п.) и его местоположени (в стенке облицовки или сварном стыке).The detected defect is subjected to preliminary preparation, the content of which depends in each particular case on the type of defect (crack, sink, etc.) and its location (in the wall of the cladding or the welded joint).
Так, например, при обнаружении трещины 1 в стенке 2 облицовки производ т зас- верловку 3 концов трещины, исключа веро тность ее дальнейшего распространени . Затем производ т выборку 4 дефектного металла .For example, when detecting a crack 1 in the wall 2 of the lining, the 3 ends of the crack are filled, excluding the probability of its further propagation. Then a sample of 4 defective metal is sampled.
После этого вблизи исправл емого дефекта сверл т отверстие 5(10-16 мм), местоположение которого выбирают таким, что выход щие из отверсти вода, а затем парThereafter, a hole 5 (10-16 mm) is drilled near the defect to be fixed, the location of which is chosen such that the water leaving the hole and then steam
00
5five
не мешают сварщику произвести заварку швом 6 исправл емого дефекта.do not interfere with the welder to weld the seam 6 of the defect to be fixed.
После заварки дефекта отверстие 5 заделывают стальной конической пробкой 7 со стальным уплотнительным кольцом 8 на цилиндрическом конце путем их совместной запрессовки. В процессе запрессовки уплот- нительное кольцо 8 деформируетс , плотно . заполн зазор между конической пробкой 7 и отверстием 5. Таким образом, обеспечиваетс качественное исправление трещины 1 в стенке 2 облицовки и герметична заделка отверсти 5, обеспечивающа качественное выполнение сварного шва 9 при последующей обварке пробки 7.After welding the defect, the hole 5 is sealed with a steel conical plug 7 with a steel sealing ring 8 on the cylindrical end by means of joint pressing them. In the process of pressing in, the sealing ring 8 is deformed, tight. fill the gap between the conical plug 7 and the hole 5. Thus, high-quality correction of the crack 1 in the wall 2 of the facing is ensured and the sealing of the hole 5 is tight, ensuring high-quality weld seam 9 during the subsequent welding of the plug 7.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU853930725A SU1291669A1 (en) | 1985-06-07 | 1985-06-07 | Method of repairing flows in walls of metal linings of hydraulic structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU853930725A SU1291669A1 (en) | 1985-06-07 | 1985-06-07 | Method of repairing flows in walls of metal linings of hydraulic structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1291669A1 true SU1291669A1 (en) | 1987-02-23 |
Family
ID=21189619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU853930725A SU1291669A1 (en) | 1985-06-07 | 1985-06-07 | Method of repairing flows in walls of metal linings of hydraulic structure |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1291669A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736275A (en) * | 2019-03-08 | 2019-05-10 | 海南蓄能发电有限公司 | A kind of power station diversion pressure steel tube grout sealing structure and its construction method |
-
1985
- 1985-06-07 SU SU853930725A patent/SU1291669A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Руковод щие технические материалы по сварке, термообработке и контролю систем котлов и трубопроводов при монтаже и ремонте оборудовани тепловых электростанций. - М.: Энерги , 1975, с. 195-200 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736275A (en) * | 2019-03-08 | 2019-05-10 | 海南蓄能发电有限公司 | A kind of power station diversion pressure steel tube grout sealing structure and its construction method |
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