External-pressure second-level vibration-isolating cabin-penetrating connecting pipe for ship

The invention discloses an external-pressure second-level vibration-isolating cabin-penetrating connecting pipe for a ship. The connecting pipe comprises a connecting pipe body, a connecting pipe assembly and composite pressure-welding flanges, wherein the connecting pipe assembly penetrates through the connecting pipe body, and two ends of the connecting pipe assembly are fixed to the connectingpipe body through the composite pressure-welding flanges. According to the external-pressure second-level vibration-isolating cabin-penetrating connecting pipe for the ship, the influence of bulkheadvibration on a pipeline can be relieved, and meanwhile the influence of pipeline vibration on a bulkhead can be relieved; and vibration noise can be lowered by more than 7-10 decibels. 本发明公开了一种船用外压二级隔振通舱接管，包括接管本体、接管总成与复合压接法兰，所述接管总成穿过所述接管本体，所述接管总成的两端通过复合压接法兰固定于接管本体上。本发明的船用外压二级隔振通舱接管既能减轻舱壁的振动对管路的影响，同时也能减轻管路振动对舱壁的影响。本发明可减轻振动噪音7～10个分贝以上。