Title:
INTERMIXING FEEDWATER SPARGER NOZZLES AND METHODS FOR USING THE SAME IN NUCLEAR REACTORS
Document Type and Number:
WIPO Patent Application WO/2018/182965
Kind Code:
A3
Abstract:
Nozzles mix coolant from different sources together in an outlet to prevent differences in coolant output. Different flow path configurations are useable in the nozzle, including a multiple-path configuration with flows from different sources jacketed or concentrically arranged around flows from other sources. Swirl vanes may be installed in the nozzle to impart mixing or filtering the fluid flow. Diffusers may be used to passively suction or accelerate flow and mixing the same like a jet pump. Nozzles can be combined with filtration systems like trap filters that capture debris based on a momentum difference between the denser debris and fluid. Filters can use magnetic, adhesive, or porous materials to capture debris without blocking a flow path. Filters can be disengaged, such as when clogged, such that coolant flows around the system. Nozzles can be installed on feedwater sparger assemblies in varying manner to distribute coolant from multiple nozzles.
Inventors:
LOEWEN ERIC (US)
SINEATH JAMES (US)
MOLINARO DEAN (US)
DAWN WILLIAM (US)
SPRAGUE ROBIN (US)
MARSHALL THERON (US)
MELITO JOEL (US)
SINEATH JAMES (US)
MOLINARO DEAN (US)
DAWN WILLIAM (US)
SPRAGUE ROBIN (US)
MARSHALL THERON (US)
MELITO JOEL (US)
Application Number:
PCT/US2018/022094
Publication Date:
November 08, 2018
Filing Date:
March 13, 2018
Export Citation:
Assignee:
GE HITACHI NUCLEAR ENERGY AMERICAS LLC (US)
International Classes:
G21C15/18; G21C15/02
Foreign References:
| JP2011237455A | 2011-11-24 | |||
| KR101501463B1 | 2015-03-12 | |||
| US20030118144A1 | 2003-06-26 | |||
| US20130251085A1 | 2013-09-26 | |||
| KR20160146131A | 2016-12-21 |
Other References:
See also references of EP 3602573A4
Attorney, Agent or Firm:
CRAWFORD, Robert, D. et al. (US)
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