The new type of marine fire door has the characteristics of light weight, firmness, turbulence resistance, flame retardant, sound insulation, heat insulation, fire prevention and high strength, which is conducive to installation and beautiful appearance. Marine fire doors are mainly cabin fire doors on ships. The marine fire door comprises a fire door frame and a fire door panel. One side of the fire door panel is hinged with one side of the fire door frame, and the other side is provided with a door lock and a handle. The utility model is characterized in that the fire door panel is provided with an escape opening, and the escape opening is provided with an air grid type small door panel. One side of the air grid type small door panel is hinged with the corresponding side of the escape port, and the other side is provided with a bolt for closing or opening the air grid type small door panel.

The following points shall be paid attention to during the installation of marine fire doors:

1) Single wall enclosure: the reinforcement method is to be directly installed in the top and bottom groove, so the thickness of the door frame is suitable for the width of the top and bottom groove. After installation, the top and bottom groove shall be reinforced with self tapping screws to ensure the position of the fire door.

2) Triple wall: it usually appears in the part with steel wall inside the ship. There are two layers of composite rock wool board inside and outside. Reinforcement is to fix the fire door by welding when the composite rock wool board is not installed.

3) Double enclosure wall: it usually appears in places such as the cab. There is a composite cotton board on one side and a steel enclosure wall on the other side. The installation is reinforced by screws and nuts around.