Anti-freezing method suitable for polar sailing ship

Abstract

The invention discloses an anti-freezing method suitable for a polar sailing ship. The anti-freezing method is characterized in that the anti-freezing manner for pipelines is a mixed composition manner formed by combining adjoining-pipe anti-freezing structure heating, heat preservation materials, a residue discharging method and a gas drying method; the anti-freezing manner for mechanical compartments and liquid tanks is a mixed composition manner formed by combining steam heating, electric heating, electric heaters and the heat preservation materials; the anti-freezing manner for equipment is a mixed composition manner formed by combining heating and enclosed protection; the anti-freezing manner for channels is formed by the electric heating and the enclosed protection or a mixed combination of the electric heating and the enclosed protection. The method disclosed by the invention has the advantages that on the consideration of pipeline systems, the mechanical compartments, the liquid tanks, the equipment and the channels and the like, various important systems and equipment of the polar sailing ship are effectively guaranteed to normally operate in severe environments, such as low air temperature, low water temperature and the like, and functions of various compartments and channels are not influenced, therefore the polar sailing ship is guaranteed to safely sail in cold sea areas.

Description

technical field [0001] The invention belongs to the design field of polar navigation ships, and in particular relates to an antifreeze method suitable for polar navigation ships. Background technique [0002] When a ship sails in the polar region, due to the extremely low ambient temperature, various ship systems will be affected. For example: the ballast water in the ballast tank will freeze on the surface of the ballast water due to the extremely low ambient temperature, causing the cabin structure to be damaged due to excessive positive and negative pressure during ballast discharge; the fire hydrants of the fire protection system are arranged in In the exposure area, when the outside temperature is extremely low, the fire hydrant will be covered by ice and snow, so that it cannot be put into use immediately when fire fighting is required; It cannot be started smoothly in the indoor environment; the mooring equipment cannot be operated after it is covered by ice and snow...

AI Technical Summary

Problems solved by technology

For example: the ballast water in the ballast tank will freeze on the surface of the ballast water due to the extremely low ambient temperature, causing the cabin structure to be damaged due to excessive positive and negative pressure during ballast discharge; the fire hydrants of the fire protection system are arranged in In the exposure area, when the outside temperature is extremely low, the fire hydrant will be covered by ice and snow, so that it cannot be put into use immediately when fire fighting is required; Unable to start smoothly in the indoor environment; the mooring equipment cannot be operated after being covered by ice and snow

In cold temperatures, the escape routes may be covered by ice and snow, making normal passage impossible; the doors and windows may be blocked by ice and snow, so that personnel cannot enter and exit, etc., which poses a great threat to the safe navigation of polar ships

Images