发明名称 |
Water Jet Peening Apparatus and Water Jet Peening Method |
摘要 |
In a water jet peening apparatus, a high-pressure under-water pump is installed on an upper end of a casing and an injection nozzle drive mechanism equipped with an injection nozzle is attached to the casing. A high-pressure hose whose one end is connected to the high-pressure under-water pump is disposed in the casing and the other end of the high-pressure hose is connected to the injection nozzle. The casing is seated at an upper end of a control rod drive mechanism housing and the high-pressure under-water pump is driven. The high-pressure water pressurized by the high-pressure under-water pump is supplied to the injection nozzle through the high-pressure hose in the casing and is jetted toward the weld portion between the control rod drive mechanism housing and a stub tube. The time required for a water jet peening operation can be shortened. |
申请公布号 |
US2014233689(A1) |
申请公布日期 |
2014.08.21 |
申请号 |
US201414180608 |
申请日期 |
2014.02.14 |
申请人 |
Hitachi-GE Nuclear Energy, Ltd. |
发明人 |
SAITO Noboru;HATOU Hisamitsu;KUROSAWA Koichi;YOSHIKUBO Fujio;MORINAKA Ren;KIMURA Ryuji |
分类号 |
G21C19/00 |
主分类号 |
G21C19/00 |
代理机构 |
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代理人 |
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主权项 |
1. A water jet peening apparatus comprising:
a casing; a high-pressure under-water pump installed on said casing; an injection nozzle to which water pressurized by said high-pressure under-water pump is supplied; and an injection nozzle moving apparatus installed in said casing for moving said injection nozzle. |
地址 |
Hitachi-shi JP |