舱盖怎么维护保养才能水密并且在检察中不被记录缺陷

舱盖怎么维护保养才能水密并且在检察中不被记录缺陷

（图纸配合实际操作记录和照片）

HATCH COVER MAINTENANCE

作者：赵立帅

Weathertight : in any sea condition, water will not penetrate into the vessel

风雨密：在任何海况条件下，水都不会进入结构之内

Watertight: capable of preventing the passage of water through the structure under a head of water for which the surrounding structure is designed.

水密：在设计水压力下，任何方向水均不能通过该结构。

试验水压Pressure: not less than 2kg/cm2

冲水距离Distance: 1-1.5m

这个实验建议留有照片并且存档 RIGHTSHIP 的检查项目 有图有真相更有说服力

packing damaged  胶条损坏

compression bar damaged 压条损坏

locator problem?  限位的问题

bearing pad problem 支撑块的问题

cleat problem?  压紧器的问题

drain chocked/broken  泄水通道堵塞或破裂        

泄放孔堵塞 

泄放管 破损

盖子丢失

球破损

压紧器是PSC检查的重点项目 风暴舱的压紧器和普通货舱压紧器有区别 在申请备件时候要特别注意

3.BEARING PAD 支撑块  磨损的支撑块会导致橡胶条加速磨损永久变形

4.COMPRESSION BAR 水密压条（压板）

六．开舱的注意事项要打印出来并且张贴在甲板办公室 开舱培训记录要存档    

              SAFETY INSTRUCTIONS

FOR OPENING/CLOSING OF HATCH COVERS  

1. Opening or closing of Hatch Covers should be carried out only with Chief Officer’s  or Master’s approval 开关舱必须经过船长大副同意

2.  A Deck Officer must always be present to check and supervise the opening and closing of the hatch covers.开关舱必须有驾驶员在场

3. Minimum 3 persons are required for opening-closing of hatch covers:至少三人参与开关舱

1 Person (Bosun) to drive the covers;水头负责开关舱操作       

1 Person to oversee and supervise (Deck Officer);驾驶员负责掌控全局

1 Person to check all is clear at the other side of the hatch to the controls and report positively before the covers are moved (A/B). 一般AB负责观察周围情况并且实时报告

The three crew members should stand in positions where they have a good view of all of the hatch covers and the comings and can see if there are any problems, obstructions and see the cleats, wheels, hydraulics etc. 三名船员要站在合适的位置观察整个舱盖包括舱口围 液压管 滚轮 压紧器 发现任何问题及时停止

If it is necessary, and need more crew members - then it is OOW decision based on his assessment of the risks and the nature of the hatch covers, and the conditions at the time. 

根据现场情况可以增加人手

4.  Hatch covers stoppers MUST NEVER BE REMOVED if crew members are still working on or near hatch covers / track ways. 如果还有人在附近工作 不允许移掉STOPPER

5.  Hatch covers wheel stoppers MUST NEVER BE REMOVED until any sweeping is completed. The pins should be removed by the crew member(s) doing the sweeping.