Shutter blade for ship

Abstract

The invention discloses a shutter blade for a ship. The blade comprises a first folded plate, a second folded plate, a third folded plate and a first sealing strip, wherein the second folded plate and the first folded plate are oppositely combined to form a cavity between the second folded plate and the first folded plate, and two ends of the cavity are sealed through the third folded plate and / or the first sealing strip. The first sealing strip comprises a deformable head part and a clamping part which extends and protrudes from the deformable head part, the end part of the clamping part is bent to form a groove-shaped groove, and the clamping part of the first sealing strip is attached to the second folded plate or the third folded plate and enables the edge of the second folded plate or the third folded plate to be clamped and plugged in the groove-shaped groove. When the shutter blade is mounted in a double-layer shutter, after the double-layer shutter is closed, an inner closed space and an outer closed space can be formed, the hollow high-temperature-resistant sealing strip is extruded in the closed space, bidirectional sealing performance is achieved, the tightness of the shutter is greatly improved, and the sealing form is novel.

Description

technical field [0001] The invention relates to the technical field of ship building, in particular to a ship shutter blade. Background technique [0002] At present, most of the external ventilation louvers used in ship air-conditioning and ventilation systems are single-layer weathertight. When encountering heavy wind and rain, in order to prevent wind and rain from invading the interior of the ventilation system, the louvers can only be closed, and they do not have higher airtightness after closing. It cannot block nuclear, biological and chemical pollutants. This kind of single-layer weathertight louver can't withstand the high-temperature tail gas attack after the missile is launched many times in the missile area of ​​the ship, and the louver blade is easy to deform, which affects the tightness of the louver after it is closed. Contents of the invention [0003] In view of this, the present invention provides a marine shutter blade to solve the above-mentioned probl...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the external ventilation louvers used in ship air-conditioning and ventilation systems are single-layer weather-tight. When encountering heavy wind and rain, in order to prevent wind and rain from invading the ventilation system, the louvers can only be closed, and they do not have higher airtightness after closing. Unable to block nuclear, biological and chemical pollutants

This kind of single-layer weathertight louvers can't withstand the high-temperature tail gas attack after missile launches for many times in the missile area of ​​the ship, and the louver blades are easy to deform, which affects the tightness of the louvers after they are closed.

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