发明公开
- 专利标题: LIFTING APPARATUS
- 专利标题(中): 起重设备
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申请号: EP13718044.4申请日: 2013-04-18
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公开(公告)号: EP2838831A1公开(公告)日: 2015-02-25
- 发明人: BECK, Leigh , BOSWORTH, Philip , WOOD, Eddie
- 申请人: Helix Energy Solutions (UK) Limited
- 申请人地址: Johnstone House 52-54 Rose Street Aberdeen AB10 1ND GB
- 专利权人: Helix Energy Solutions (UK) Limited
- 当前专利权人: Helix Energy Solutions (UK) Limited
- 当前专利权人地址: Johnstone House 52-54 Rose Street Aberdeen AB10 1ND GB
- 代理机构: Shanks, Andrew
- 优先权: GB201206805 20120418
- 国际公布: WO2013156777 20131024
- 主分类号: B66C13/02
- IPC分类号: B66C13/02 ; B66C13/04
摘要:
A lifting method comprising supporting a payload (20) using a first lifting apparatus (18); and activating an emergency lifting apparatus (14) to raise the payload a predetermined distance in response to an emergency signal. The emergency lifting apparatus is configured to be activated to lift the payload a predetermined distance in response to an emergency activation signal. The method and apparatus are particularly useful in the event of a failure of the first lifting apparatus: the emergency lifting apparatus may be activated to lift the payload a relatively small distance sufficient to clear adjacent structures. This may be particularly advantageous in offshore operations, where the first lifting apparatus is supported on a floating vessel which will experience heave.
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