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求教坛子里各位技术大拿
现入级BV小拖船项目,研读了其舱底水系统图,有些不解:
此类型小拖轮一定需要舱底应急吸口吗?查看了总重小于500T的BV规范,没有发现此要求;
后查阅了常用的BV钢制船规范,叙述如下:a) The emergency bilge suction is to be led directly from
the drainage level of the machinery space to a main circulating
(or cooling) pump and fitted with a non-return
valve.
b) In ships where, in the opinion of the Society, the main
circulating (or cooling) pump is not suitable for this purpose,
the emergency bilge suction is to be led from the
largest available independent power driven pump to the
drainage level of the machinery space. Such a pump is
not to be a bilge pump. Its capacity when the emergency
suction is operating is to be at least equal to the
required capacity of each bilge pump as determined in
[6.7.4].
对此描述有些不解 a. 主循环泵是指哪些泵?b. 在什么情况下主循环泵不适合这个用途?c. independent power driven pump 是什么意思? 主机驱动的泵算吗?该船的主冷却水泵同时也是机舱最大的泵就是主机端驱动的,故现在的设计是应急吸口连在此泵上面,各位认为可否?
另,应急吸口的排舷可以是经过其他设备的排舷管吗?还是应设计成独立的出舷管? 此船的设计是: 通过某冷却器排出舷外。
欢迎各位指教
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