Process and plant for protecting water pipeworks from corrosion
US5051281A · kind A · utility
Inventors
Key dates
| Filing date | Feb 6, 1989 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | Feb 6, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/08
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Plant for treating water from a first pipe to protect the internal walls of a pipework, including a storage tank (R) for powdered lime, a loop (2) for bleeding water from the first pipe (1), a lime saturator (S) located on the loop (2), and structure (3, 4, 5) for adding powdered lime from the storage tank (R) into the saturator (S). The loop (2) includes, upstream of the saturator (S), relative to the direction of water flow, a decarbonator (D) fed with water which is to be treated. A second pipe (6, 2) which connects the outlet of the saturator (S) with the first pipe (1) includes a loop (7) for recycling a part of the material from the saturator (S) to the decarbonator (D). The structure for adding powdered lime includes a pipe (5) which receives the powdered lime and which connects the outlet of the decarbonator (D) with the inlet of the saturator (S).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.