发明公开
- 专利标题： METHOD AND DEVICE FOR INSERTION OF A RIGID PIG INTO A FLOW PIPE
- 专利标题（中）： 方法和设备，用于将刚性现猪流在管道
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申请号： EP01274017.1申请日： 2001-12-21
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公开(公告)号： EP1363749A1公开(公告)日： 2003-11-26
- 发明人: RESENDE DE ALMEIDA, Alcino
- 申请人： Petroleo Brasileiro S.A. - PETROBAS
- 申请人地址： Avenida Republica do Chile no 65 CEP 20035-900-Rio de Janeiro RJ BR
- 专利权人： Petroleo Brasileiro S.A. - PETROBAS
- 当前专利权人： Petroleo Brasileiro S.A. - PETROBAS
- 当前专利权人地址： Avenida Republica do Chile no 65 CEP 20035-900-Rio de Janeiro RJ BR
- 代理机构： Roberts, Mark Peter
- 优先权： GB0105009 20010228
- 国际公布： WO02076642 20021003
- 主分类号： B08B9/04
- IPC分类号： B08B9/04 ; B08B9/20 ; B08B7/04 ; G05D11/00
摘要：
There is disclosed a method and a device to allow a 'rigid' pig to pass into an undersea flow pipe in which a hollow flow-constricting device is in use. According to the invention the device is provided with a first pipe branch and a second pipe branch. The first pipe branch is provided with a hollow flow-constricting device in it and both first and second pipe branches are provided with shut-off valves, whereby the flow can be diverted to the second pipe branch thereby enabling a rigid pig to pass into such second pipe branch, when necessary.
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