Safety manhole cover for ship and use method thereof

Abstract

The invention discloses a safety manhole cover for a ship and a use method thereof and belongs to the technical field of ship equipment. The safety manhole cover for the ship comprises a cover plate,a pair of handles, a sealing ring and a rubber sealing ring used for sealing, wherein the pair of handles is hinged to the cover plate; multiple connecting bolts distributed in the form of an annulararray are connected between the cover plate and the sealing ring; a heating groove is dug in one end, far away from the cover plate, of the sealing ring; an electric heating plate is mounted in the heating groove; a heat conducting net sleeves the electric heating plate; the sealing ring is in contact with the rubber sealing ring; a heat insulating mounting plate is fixedly connected to the lowerend of the electric heating plate; a circuit board is arranged in the heat insulating mounting plate; a single chip microcomputer is embedded on the circuit board; the single chip microcomputer is electrically connected with the circuit board; and multiple temperature sensors are mounted in the sealing ring. The safety manhole cover for the ship can be automatically adjusted for temperature changenear the rubber sealing ring; the rubber sealing ring can be automatically heated when the temperature is lower so that an optimal use temperature is always kept; and the sealing safety at the manhole cover is obviously enhanced.

Description

technical field [0001] The invention relates to the technical field of ship equipment, and more specifically relates to a safety manhole cover for ships and a method for using the same. Background technique [0002] Manhole refers to the opening structure used for personnel to enter and exit equipment for installation, maintenance and safety inspection. It is mainly composed of short tube joints (or short pipes), flanges and manhole covers with handles. See "Inspection Holes" for the required number of manholes and their minimum size. Manhole materials include carbon steel and stainless steel. Manholes are divided into normal pressure manholes and pressure manholes according to pressure conditions; Oval and rectangular manholes, rectangular manholes are only suitable for normal pressure equipment; manholes are divided into horizontal and vertical installation manholes according to the installation position; Common type and quick opening type, the structure and size of the m...

AI Technical Summary

Problems solved by technology

[0003] The existing safety manhole covers for ships use rubber sealing rings to ensure the tightness of the joints. Once there is a problem with the sealing and water leakage occurs, it will pose a huge hidden danger to the safe driving of the ship. The temperature of large ships when driving at sea Generally very low, especially near the north and south poles, and the performance of rubber will be directly denatured at a low temperature below -55 degrees, and the sealing performance cannot be maintained, and there is a huge potential safety hazard

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