Apparatus for removing and installing a recirculation pump in a pressure housing
US5577084A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 8, 1995 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | May 8, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An apparatus for removing and installing a reactor component, such as a circulating pump, by remote operation. The apparatus includes a handling mechanism for transporting various interchangeable containers and tools along a path between a position on top of the suppression pool and a position overlying the reactor component. The handling mechanism has a yoke assembly adapted to receive and support the trunnions of any container or tool, lifting screws for raising and lowering the yoke assembly and an arcuate rack mounted on the shield wall for rotating the yoke assembly around the circumference of the shield wall. A transition collar is latched onto the pump pressure housing. The transition collar has a valve at the top for closing off its interior. Seals arranged between the transition collar and pressure housing to ensure water-tightness. A quick disconnect flange is provided to facilitate coupling of an upper flange on the transition collar to a flange of the interchangeable container or tool carried by the handling mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.