ARTICLE · 1113056

插套式贯穿件(舷侧处原理说明及概念设计)

发布时间：2026-10-02 10:00:54 最近访问：2026-10-02 10:00:55

In shipbuilding terminology, a definition of spigot type is commonly used for the pipe penetration through the bulkhead or side shell.

在造船术语中，止口式（插套式）一般指穿过舱壁或舷侧外板的管道通舱件。

To understand the meaning of spigot type is necessary because of most pipe penetrations on ship leading to side shell is critical points which may cause delaying the launching schedule due to the wrong design and fabrication.

理解止口式的定义十分必要：船舶上大部分通向舷侧外板的管道通舱件属于关键节点，一旦设计、制造出错，将导致下水节点延期。

Initially, in mean of closing appliance, when holes for pipes or duct passages are cut in the wrong place by mistake, they are to be closed. The standard closing methods are as follows :

首先从封堵构件角度说明：若管道或通风管开孔位置误开，需要对开孔进行封堵。标准封堵方法如下：

Insert plate, doubling plate and spigot嵌入板、复板及止口板

The thickness of these closing plates is to be the same thickness or more as the cropped plate.上述封堵板的厚度应不小于被割除母材板的厚度。

In the case of newbuildings, doubling plates are not desirable because the doubling plate projects from the surface with bad appearance.新造船项目一般不推荐采用复板，原因是复板突出于板面，外观较差。

a) For longitudinal strength membersa）纵向强力构件

When the diameter of the incorrectly cut hole is less than 75 mm, the hole is either to be enlarged to 75 mm and a spigot provided or enlarged to 300 mm or more in diameter and a new plate inserted.

若误开孔孔径小于 75mm，需将孔扩至 75mm 并加装止口板；或将孔径扩至 300mm 及以上，采用镶入新板方式修复。

After welding external surface beads are to be ground down to a smooth finish.

焊接完成后，外表面焊道需打磨平整。

**Typical Spigot Insert type in shipbuilding (Hole diameter ~ 75mm)**

b) Other membersb）其他构件

The diameter of the incorrectly cut hole is to be enlarged to minimum 200 mm and a new plate inserted or a doubling plate applied.

误开孔孔径应扩至最小 200mm，采用镶入新板或加装复板方式修复。

Giving with an example from BV-Rule requirement of pipe penetration to side shell:

以下举例引用法国船级社（BV）关于舷侧外板管道通舱件的规范要求：

As interpretation, spigot passing, mean that the pipe passes through the plate with out gap or have a spigot passing through the opening.

止口式贯穿，指管子无间隙穿过板件，或是通过止口件穿过开孔。

The clearance between the spigot and the edge of the opening is to be uniform for the whole periphery of the opening and is not to exceed 2 mm (max 4mm) as general.

止口件与开孔边缘之间的间隙需沿开孔全周均匀分布，一般不大于 2mm（最大 4mm）。

Please give your evaluation for the actual product on the right side by your opinions.

请根据你的判断，对右侧实物样品作出评估。

Summary:

From above description, now we can see that the important of spigot passing type which can reduce the failure of structure integrity on strength longitudinal main structures by keeping the gap between hole and pipe as small as possible.

综合上述说明可知：止口式贯穿件的关键作用，是通过将开孔与管子之间的间隙控制至最小，降低纵向主强力构件发生结构完整性失效的风险。