发明名称 |
PROCESS AND DEVICE FOR COMPRESSING BY HAMMERING A TUBE OF A STEAM GENERATOR SET IN A TUBE PLATE |
摘要 |
To carry out a hammer-compression of a steam-generator tube 1, a high-velocity gas stream laden with particles of a granulometry of between 50 and 500 mu m is directed onto the inner surface of the tube 1 in the transitional zone 7 of this tube between its deformed part on the inside of the tube plate 2 and the non-deformed part. The gas jet is directed onto the inner surface of the tube 1 in radial directions and over the entire periphery of this tube. The mass flow rate of the particles is higher than 0.010 kg/sec. The device comprises a flexible sleeve 20 movable within a casing 16, 18 fastened sealingly under the tube plate 2 around the tube 1. An injection nozzle 21 and a guide means 22 are arranged at the end of the sleeve 20 receiving the particle-laden gas. <IMAGE> |
申请公布号 |
ZA8508519(B) |
申请公布日期 |
1986.06.25 |
申请号 |
ZA19850008519 |
申请日期 |
1985.11.06 |
申请人 |
FRAMATOME |
发明人 |
CLAUDE BIANCHI;YVES FOURNIER;PAUL JACQUIER |
分类号 |
B21D31/06;B21D39/06;B24C3/32;C21D7/06;F16L58/00;F28F9/16 |
主分类号 |
B21D31/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|