关于船舶救生筏存放位置的问题

月牙琴湾

船舶救生筏，存在方两层甲板中间，影响船舶夏成时救生筏自由漂浮至水面，使用导向杆是否满足公约要求，导向杆的夹角是否有要求呢？希望大家发表看法交流一下。

sanshandaobojue

When ship collapse 90 degree, it will not afloat automaticly. Give comments, and reject.

qianhongzdh

sanshandaobojue 发表于 2021-7-19 13:46
When ship collapse 90 degree, it will not afloat automaticly. Give comments, and reject.

sounds reasonable

月牙琴湾

sanshandaobojue 发表于 2021-7-19 13:46
When ship collapse 90 degree, it will not afloat automaticly. Give comments, and reject.

有什么确切要求吗，或相关解释没有呢

xjf

如果船正扣呢，会出现什么情况？

sanshandaobojue

SOLAS Chapter IIIPART B REQUIREMENTS FOR SHIPS AND LIFE-SAVING APPLIANCES

SECTION I PASSENGER SHIPS AND CARGO SHIPS

Regulation 13 Stowage of survival craft

1   Each survival craft shall be stowed:

.1   so that neither the survival craft nor its stowage arrangements will interfere with the operation of any other survival craft or rescue boat at any other launching station;

.2   as near the water surface as is safe and practicable and, in the case of a survival craft other than a liferaft intended for throw over board launching, in such a position that the survival craft in the embarkation position is not less than 2 m above the waterline with the ship in the fully loaded condition under unfavourable conditions of trim of up to 10 degrees and listed up to 20 degrees either way, or to the angle at which the ship's weather deck edge becomes submerged, whichever is less;

4.2   Each liferaft or group of liferafts shall be stowed with a float-free arrangement complying with the requirements of paragraph 4.1.6 of the Code so that each floats free and, if inflatable, inflates automatically when the ship sinks.

4.1.6   Float-free arrangements for liferafts

4.1.6.1   Painter system

The liferaft painter system shall provide a connection between the ship and the liferaft and shall be so arranged as to ensure that the liferaft when released and, in the case of an inflatable liferaft, inflated is not dragged under by the sinking ship.

4.1.6.2  Weak link

If a weak link is used in the float-free arrangement, it shall:

.1   not be broken by the force required to pull the painter from the liferaft container;

.2   if applicable, be of sufficient strength to permit the inflation of the liferaft; and

.3   break under a strain of 2.2 ± 0.4 kN.

4.1.6.3   Hydrostatic release units

If a hydrostatic release unit is used in the float-free arrangements, it shall:

.1   be constructed of compatible materials so as to prevent malfunction of the unit. Galvanizing or other forms of metallic coating on parts of the hydrostatic release unit shall not be accepted;

.2   automatically release the liferaft at a depth of not more than 4 m;

.3   have drains to prevent the accumulation of water in the hydrostatic chamber when the unit is in its normal position;

.4   be so constructed as to prevent release when seas wash over the unit;

.5   be permanently marked on its exterior with its type and serial number;

.6   be permanently marked on the unit or identification plate securely attached to the unit, with the date of manufacture, type and serial number and whether the unit is suitable for use with a liferaft with a capacity of more than 25 persons;

.7   be such that each part connected to the painter system has a strength of not less than that required for the painter; and

.8   if disposable, in lieu of the requirement in paragraph 4.1.6.3.6 be marked with a means of determining its date of expiry.

sanshandaobojue

4.1.18 Buoyancy of float-free liferafts test Regulations: LSA Code; MSC.81(70) 1/5.13
Test Procedure Acceptance Criteria Significant Test Data
It should be demonstrated that the liferafts
packed in containers, which are float-free, have
sufficient inherent buoyancy to inflate the liferaft
by means of the actuating line in the event
of the ship sinking. The combination of
equipment and container or valise should be
that which produces the maximum packed
weight.
The liferaft packed in container should have sufficient
inherent buoyancy to inflate the liferaft by means of the
actuating line in the event of the ship sinking.
Comments/Observations
Passed Failed ___________

sanshandaobojue

Usually the statutory requirement is not so detail, but when the Class issue the product certificate they will approval and certify liferaft with storage frame together. the SOLAS required float free when ship sink, look at the pic, it will not float when ship list 90degree. So reject.
If u give more information,  flag& Class, maybe there are more requirement.

留得残荷听雨声

    这是中文网站及中文栏目，在这一股脑的刷英语存在感似乎找错了地方，查了查英语专栏也没见你发帖。说你"二虎"还不承认。
      关于救生阀(气胀式用门字阀 敞开式用竹头筏)安放位置用导杆设计纯属多余，按每舷阀均需满足全船人员之规定，就是考虑船沉水时的各种工况。

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月牙琴湾

留得残荷听雨声 发表于 2021-7-20 16:00
这是中文网站及中文栏目，在这一股脑的刷英语存在感似乎找错了地方，查了查英语专栏也没见你发帖。说你 ...

阀？不用导杆也满足要求？

月牙琴湾

xjf 发表于 2021-7-19 16:57
如果船正扣呢，会出现什么情况？

这种情况还是有道理，正扣还得迅速，但是与上层有无甲板遮挡似乎又没多大关系

留得残荷听雨声

月牙琴湾 发表于 2021-07-20 18:49
阀？不用导杆也满足要求？

    正常设计都会考虑将阀设在艇甲板开敞位置，如不行或可改用托架探出(不超出舷外)或改在主甲板用架子托起来，没见用导向杆的先例。
     静水压力释放器的开启释放压力是1公斤以上(好像是1.5kg)而不是见水就释放。

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sanshandaobojue

留得残荷听雨声 发表于 2021-7-20 16:00
这是中文网站及中文栏目，在这一股脑的刷英语存在感似乎找错了地方，查了查英语专栏也没见你发帖。说你 ...

SOLAS only in English.

sanshandaobojue

留得残荷听雨声 发表于 2021-7-20 19:27
正常设计都会考虑将阀设在艇甲板开敞位置，如不行或可改用托架探出(不超出舷外)或改在主甲板用架子托 ...

bullshit
.2   automatically release the liferaft at a depth of not more than 4 m;