Asphalt ship cargo pipeline cabin-penetrating sealing device

Abstract

The invention relates to an asphalt ship cargo pipeline cabin-penetrating sealing device. The asphalt ship cargo pipeline cabin-penetrating sealing device comprises a deck and a cargo oil pipe, the deck is provided with a through hole, the cargo oil pipe penetrates through the through hole, the upper end of the deck is provided with a sealing base ring arranged outside the cargo oil pipe in a sleeving mode, the lower end of the sealing base ring is welded to the upper end face of the deck, a lower flange is connected outside the upper end of the sealing base ring in a sleeving mode, the upper end of the lower flange is provided with an upper flange arranged outside the cargo oil pipe in a sleeving mode, the upper flange is connected with the lower flange through a bolt, the upper end face of the upper flange is provided with a step hole, graphite packing located in the step hole is arranged between the upper flange and the cargo oil pipe, a sealing press lid located at the upper end of the graphite packing is arranged outside the cargo oil pipe in a sleeving mode, the lower end of the sealing pressing lid abuts against the upper end of the graphite packing, and the sealing pressing lid is fixedly connected with the upper end of the upper flange. The asphalt ship cargo pipeline cabin-penetrating sealing device is simple in structure and convenient to manufacture and install, through the adoption of the structure and the graphite packing, the cargo oil pipe and the deck are not in any contact, the cargo oil pipe can freely flow during thermal expansion, very good sealing performance is achieved, liquid is effectively prevented from entering a cargo cabin, and the service life is prolonged.

Description

technical field [0001] The invention relates to a sealing device, in particular to a cargo pipeline penetration sealing device of an asphalt ship. Background technique [0002] An asphalt carrier refers to a ship that mainly transports asphalt (petroleum asphalt, coal tar asphalt, etc.) cargo system. During the construction of an asphalt ship, cargo oil pipes often need to pass through the deck. When the liquid asphalt of the asphalt ship flows through the cargo oil pipes, it will inevitably cause a large thermal expansion of the pipes. The traditional cargo oil pipes on the main deck The opening form largely determines that the thermal expansion of the cargo oil pipe cannot be eliminated in time. Long-term work will cause cracks in the weld of the cargo oil pipe, causing damage to the deck, and the heat of the cargo oil pipe will be transferred to the deck, reducing the sealing performance. , the cabin is prone to water ingress. Contents of the invention [0003] In vi...

AI Technical Summary

Problems solved by technology

During the construction of an asphalt ship, cargo oil pipes often need to pass through the deck. When the liquid asphalt of the asphalt ship flows through the cargo oil pipes, it will inevitably cause a large thermal expansion of the pipes. The traditional cargo oil pipes on the main deck The opening form largely determines that the thermal expansion of the cargo oil pipe cannot be eliminated in time. Long-term work will cause cracks in the weld of the cargo oil pipe, causing damage to the deck, and the heat of the cargo oil pipe will be transferred to the deck, reducing the sealing performance. , the cabin is prone to water ingress

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