发明授权
- 专利标题： PROCEDE DE REHABILITATION DE CANALISATIONS DE FLUIDE, NOTAMMENT D EAU POTABLE.
- 专利标题（英）： Method for restoring fluid pipes, particularly for drinking water
- 专利标题（中）： 方法修复流体管道，特别是饮用水
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申请号： EP05717524.2申请日： 2005-02-01
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公开(公告)号： EP1714070B1公开(公告)日： 2008-03-05
- 发明人: BORDIGNON, Jacques , FERRIER, Thierry , DARAS, Serge
- 申请人： Lyonnaise Des Eaux France
- 申请人地址： 18 Square Edouard VII 75009 Paris FR
- 专利权人： Lyonnaise Des Eaux France
- 当前专利权人： Lyonnaise Des Eaux France
- 当前专利权人地址： 18 Square Edouard VII 75009 Paris FR
- 代理机构： Michardière, Bernard
- 优先权： FR0401478 20040213
- 国际公布： WO2005088182 20050922
- 主分类号： F16L55/165
- IPC分类号： F16L55/165
摘要：
A method for restoring fluid pipes produced by the end-to-end coupling of reinforced concrete pipes (1, 2) comprising a thin sheet metal core (3, 4) and reinforcing sleeves (5, 6) at each end thereof. According to the method, the joints are restored from the inside of the pipe by stripping the inside of the joints, welding a joint in the form of a metal sleeve (10) onto the resulting stripped pipe portion (9), positioning bonded joints between respective ones of a plurality of welded joints, and repointing the joints with fresh cement to fill the previously stripped portion (9).
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