A manufacturing process of a fire-resistant breathing unit for ships

Abstract

The invention discloses a manufacturing technology of a flame-retardant breathing unit for ships. A manufacturing technology of a flame-retardant core layer of a flame-retardant assembly comprises operation steps as follows: A) the diameter of the flame-retardant core layer is determined according to the requirement of the ventilation volume of a pipeline; B) the flame-retardant core layer is manufactured as follows: 1) wavy mesh belts are manufactured by the aid of a mold; 2) flat-plate-shaped mesh belts are manufactured by the aid of a mold; 3) one wavy mesh belt and one flat-plate-shaped mesh belt are closely wound to form one core layer and cannot be loosened, and the surface of the core layer is flat, smooth and free of burrs; sizes of pores in the core layers of the flame-retardant core layer are completely uniform and consistent, and blockage is avoided; 4) the two core layers are combined into the flame-retardant core layer, and a runner in one core layer and a runner in the other core layer are arranged to form an angle; 5) all the pores of the flame-retardant core layer are required to be unblocked. With the technology, a breathing accessory of an oil compartment has a breathing function and a flame-retardant function, the pressure in the oil compartment is kept in a certain range in usual, and the oil compartment is protected.

Description

technical field [0001] The invention belongs to the technical field of ship parts and relates to a manufacturing process of a fire-resistant breathing unit for ships. Background technique [0002] With the development of the economy and the needs of national defense support, the number of naval ships is increasing, and the technical protection and safety precautions are becoming more and more important. Therefore, the Navy Equipment Department has put forward the requirements for the optimization and improvement of ship equipment. According to article 541.6.8 of GJB4000-2000 "General Rules for Ships", "Each oil tank should be installed with a stop valve or other isolation measures before entering the general venting device", CB / T3650-94 "Design Principles of Oil Tank Venting System" 3.2 .3 Clause stipulation: "When a combined system is adopted, an isolation device shall be set up between each cargo tank and the common main pipe"; the fire arresting device of the prior art ca...

AI Technical Summary

Problems solved by technology

According to article 541.6.8 of GJB4000-2000 "General Rules for Ships", "Each oil tank should be installed with a stop valve or other isolation measures before entering the general venting device", CB / T3650-94 "Design Principles of Oil Tank Venting System" 3.2 .3 Clause stipulation: "When a combined system is adopted, an isolation device shall be set up between each liquid cargo tank and the common main pipe"; when the fire arresting device of the prior art is in operation, the normal breathing of the oil tank cannot be guaranteed

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