Nuclear-reactor steam-generator shut-off valve
US4096881A · kind A · utility
7Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1975 |
| Grant date | Jun 27, 1978 |
| Priority date | — |
| Expiry date | Jun 26, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7769
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a nuclear reactor installation, a live-steam line leading from each steam generator through the containment, is equipped with a fast-acting valve. If the pressure in the generator rises the valve operates as a safety valve and releases up to one-half of the aperture cross section of the valve, so that there is no danger of damage to the steam generators. According to the invention, the valve is operated for this purpose by two pistons by means of steam. The invention is of interest particularly for light-water reactors, e.g., pressurized-water reactors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.