原文传递
Causes and Control of Corrosion in Buried-Conduit Heat Distribution Systems; Final rept
| 题名： | Causes and Control of Corrosion in Buried-Conduit Heat Distribution Systems; Final rept |
| 作者： | Meyers, J. R.; Segan, E. G. |
| 关键词： | Buried objects; Carbon dioxide; Cathodic protection; Coatings; Conduits; Corrosion; Dissolving; Distribution; Environments; Exposure(General); Failure; Heat transmission; Military facilities; Oxygen; Pipes; Soils; Solutions(Mixtures); Steel; Surface finishing; Surfaces; Water |
| 摘要： | Heat distribution systems using buried conduit are extremely vulnerable to premature failure due to corrosion. The objective of this work was to evaluate the causes and determine methods of controlling corrosion in these systems. Heat distribution systems at several military installations were studied to identify common problems. This research indicated that corrosion can be mitigated by (1) reducing the amounts of dissolved carbon dioxide and oxygen developing specifications that limit the amounts of leachable aggressive species in insulation, (2) using properly designed cathodic protection systems, and (3) using properly selected and applied surface coatings. The systems that use buried steel conduit are extremely vulnerable to premature failure due to corrosion because they contain four surfaces that can be exposed to aggressive environments. The inside surface of carrier pipes can be corroded by the products conveyed; the outside surface of the carrier pipes and the inside surface of the steel conduits/casings can be corroded by aggressive, aqueous solutions leached from the insulation; and the outside surface of the steel conduits can be corroded by aggressive soils. |
| 总页数： | 42p |
| 报告类型： | 科技报告 |
相关文献
- Effects of Leak Detection/Location on Underground Heat Distribution System (UHDS) Life Cycle Costs: A Probabilistic Model; Final rept
- Common causes of material degradation in buried piping
- Common Causes of Material Degradation inBuried Piping (U)
- Guidance for Manhole Rehabilitation in Army Underground Heat Distribution Systems; Final rept
- Evaluation of Techniques for Locating Leaks in Underground Heat Distribution Systems; Final rept.
- Corrosion Problems In the Canadian Maritime Forces
检索历史
应用推荐
