Radioactivity reduction method of a nuclear power plant and a nuclear power plant reduced in radioactivity
US4927598A · kind A · utility
14Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1988 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | Sep 6, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The primary cooling water in a primary cooling water recirculation path of a nuclear power plant is heated and recirculated in the presence of beryllium, and a film of nickel ferrite and/or cobalt ferrite is formed on the surface of pipings and various apparatus and devices connecting with the primary cooling water. The beryllium is injected in the form of beryllium ion into the primary cooling water, or is disposed in the form of beryllium or beryllium-containing alloy in the piping and/or the various apparatus and devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.