What is the stuffing box of separated bulk for the ship's axis?
1. A sealing device is installed at the bulkhead where the shaft system passes to ensure water tightness.
2. A sealing device installed at the partition wall where the shaft system passes through, to ensure water tightness under the condition of rotation of the shaft system. Also known as a bulkhead stuffing box.
Overview
There are three main types of the stuffing box of separated bulk for the ship's axis: Type A, B type and type C.
Remarks: Type A is suggested for vessels whose bulkhead space is large.
When the bulkhead space is small or there is design requirement, type B and type C can be chosen.
Structure and type:
Type A:
Type B:
Type C:
Main technical parameters:
Technical requirements:
1. Surface quality
The surface of each component of the compartment packing box should not have defects such as scratches, scratches, rust, etc.
The roughness of the outer surfaces of the compartment packing box should not exceed Ra6.3.
2. Dimensional tolerances
The tolerance level of unmarked tolerance dimensions should not be lower than the m level specified in CB/T 1804.
3. Materials and heat treatment
The main component materials of the compartment packing box are shown in the table below.
The main components of the compartment packing box should be made of materials with performance not lower than that specified in the table below.
The components of the packing box body and the packing seat should not have defects such as cracks and bubbles after heat treatment.
