LR 规范疑问

阅读模式 · 发表于 2017-7-24 16:51

本帖最后由匿名于 2017-7-24 16:51 编辑

2.9.2. Welded sleeve joints are not to be used in the following locations:

Bilge pipes in way of deep tanks.
Cargo oil piping outside of the cargo area for bow or stern loading/discharge.
Air and sounding pipes passing through cargo tanks.

请问此条款的Deep tanks 指的是那些舱，以油船为例吧？

阿斯特 · 发表于 2017-7-24 19:00

前几天搞过这事，LR现场船检给的解释是--凡是船体结构围成的储液舱室都算，所以舱底水穿过压载舱的一段舱内改成法兰连接了（集装箱船边空仓来的舱底水）

江海直达 · 发表于 2017-7-24 19:41

本帖最后由江海直达于 2017-7-24 19:43 编辑

阿斯特发表于 2017-7-24 19:00
前几天搞过这事，LR现场船检给的解释是--凡是船体结构围成的储液舱室都算，所以舱底水穿过压载舱的一段舱内 ...

法兰连接的话，浸没在压载水舱内，出故障概率不是更大一些？
问题是，舱底水管能许可穿越压载水舱？穿越燃油储存舱？

AHTS-PSV · 发表于 2017-7-25 08:35

Deep tank: A tank extending from the bottom or inner bottom up to or higher than the lowest deck.

发表于 2017-7-25 08:47

AHTS-PSV 发表于 2017-7-25 08:35
Deep tank: A tank extending from the bottom or inner bottom up to or higher than the lowest deck.

请问货油舱隔离空仓(从内底板一直到主甲板）算不算Deep tank?

AHTS-PSV · 发表于 2017-7-25 09:07

匿名者发表于 2017-7-25 08:47
请问货油舱隔离空仓(从内底板一直到主甲板）算不算Deep tank?

从定义上即可区分。

Tank: Generic term for spaces intended to carry liquid, such as, sea water, fresh water, oil, liquid cargo, etc.

Cofferdam: An isolating space between two adjacent steel bulkhead or decks. The minimumdistance between the two bulkheads or decks should be sufficient for safeaccess and inspection. In order to meet the single failure principle, in theparticular case when a corner-to-corner situation occurs, this principle may bemet by welding a diagonal plate across the corner (see figure of regulation4.5.1 in the appendix). No cargo, wastes or other goods should be contained incofferdams.

Cofferdam may be a void space or a ballast space.

Thefollowing spaces may also serve as cofferdams: oil fuel tanks as well as cargopump rooms and pump rooms not having direct connection to the machinery space,passage ways and accommodation spaces. The clear spacing of cofferdam bulkheadsis not to be less than 600 mm.

[规范类] LR 规范疑问