发明名称 |
RAPPER DEVICE |
摘要 |
<p>A method and a rapper device for cleaning a heat exchange surface in a pressure vessel. The rapper device includes a striker rod which has one end contacting the heat exchange surface in the pressure vessel and one end projecting out of the pressure vessel via a passage opening. The rapper device also includes an impacting device for impacting the projecting end of the striker rod. A section of the striker rod is slideably supported in a pressure chamber adjacent the passage opening. The pressure chamber is connected to a sealing gas supply maintaining the pressure in the pressure chamber at a higher level than the pressure in the pressure vessel. A bellows defines a pressure chamber around at least a section of the striker rod.</p> |
申请公布号 |
EP2356394(B1) |
申请公布日期 |
2013.02.20 |
申请号 |
EP20090764249 |
申请日期 |
2009.12.02 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
HEITMANN, ALFONS;VON KOSSAK-GLOWCZEWSKI, THOMAS PAUL |
分类号 |
F28G7/00;B08B7/02;F28G15/00 |
主分类号 |
F28G7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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