REACTOR COOLANT PUMP WITH BACK BLADES

PURPOSE: A nuclear reactor coolant pump is provided to prevent a thermal shock from being added to a pump axis by smoothly recirculating cooled and lubricated seal water to an inner space of a pump casing by generating an enough differential pressure in a gap of an impeller top surface. CONSTITUTION...

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Bibliographische Detailangaben
Hauptverfasser:	CHU, SUNG MIN, BANG, SANG YOUN, PARK, HWA GYU
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BLASTING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PHYSICS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE: A nuclear reactor coolant pump is provided to prevent a thermal shock from being added to a pump axis by smoothly recirculating cooled and lubricated seal water to an inner space of a pump casing by generating an enough differential pressure in a gap of an impeller top surface. CONSTITUTION: A nuclear reactor coolant pump prevents a coolant of high pressure and high temperature from flowing back and prevents a pump axis from being transformed by a thermal shock by forming a back blade part (131) in the top surface of an impeller or in the corresponding surface, increasing a differential pressure between outsides, rapidly discharging and circulating seal water into an inner space of a pump casing.