Aluminum alloy hull exhaust pipe cabin penetrating structure
An exhaust pipe and aluminum alloy technology, which is applied in ship propulsion, ship parts, ship construction, etc., can solve problems such as electrochemical corrosion and thermal conductivity differences, so as to improve safety, eliminate reliability and durability, and reduce costs Effect
Pending Publication Date: 2021-01-08
FUJIAN SOUTHEAST SHIPBUILDING
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Problems solved by technology
[0003] In order to overcome the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide an aluminum alloy ship hull exhaust pipe piercing structure, which can avoid the problems of electrochemical corrosion and thermal conductivity differences caused by welding between different materials
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[0028] In order to describe the technical content, achieved goals and effects of the present invention in detail, the following descriptions will be made in conjunction with the embodiments and accompanying drawings.
[0029] Please refer to figure 1 with figure 2 As shown, an aluminum alloy hull exhaust pipe penetrating structure of the present invention includes an exhaust pipe, a cooling shell, mounting parts, connectors and bulkheads;
[0030] The cooling shell is arranged around the exhaust pipe along the circumference of the exhaust pipe, the material of the cooling shell and the material of the bulkhead are both aluminum alloy, and the cooling shell and the bulkhead are welded and connected;
[0031] The cooling shell is indirectly connected to the mounting part through a connector, the material of the mounting part and the exhaust pipe is steel, and the mounting part is welded to the exhaust pipe;
[0032] The cavity formed by the cooling shell, the connecting piece...
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The invention relates to the technical field of ship equipment, in particular to an aluminum alloy hull exhaust pipe cabin penetrating structure which comprises an exhaust pipeline, a cooling shell, amounting piece, a connecting piece and a cabin wall. The cooling shell is arranged around the exhaust pipeline in the circumferential direction of the exhaust pipeline, the cooling shell and the cabin wall are both made of aluminum alloy, and the cooling shell is connected with the cabin wall in a welded mode. The cooling shell is indirectly connected with the mounting piece through the connecting piece. According to the aluminum alloy hull exhaust pipe cabin penetrating structure, the structural design that the same materials are connected in a welded mode and different materials are indirectly connected is adopted, and a cooling cavity formed by the connecting structure is matched to cool all components and connecting positions, so that the influence of the heat conductivity differenceon the reliability and durability of a diesel engine exhaust structure is eliminated, the maintenance cost is reduced, and the safety of the exhaust pipe cabin penetrating structure is improved.
Description
technical field [0001] The invention relates to the technical field of ship equipment, in particular to an aluminum alloy hull exhaust pipe piercing structure. Background technique [0002] The diesel engine exhaust type of the ship includes passing the exhaust pipe of the diesel engine through the side wall of the engine room, and then exhausting the hot gas out of the hull through a dry exhaust structure or a wet exhaust structure. At present, the material of the side wall of the engine room is aluminum alloy or steel, and the exhaust pipe of the diesel engine is generally made of steel. When the side wall of the engine room is made of aluminum alloy, there are certain difficulties in welding the exhaust pipe of the diesel engine and the side wall of the engine room. Welding between materials is prone to electrochemical corrosion and differences in thermal conductivity, which will affect the reliability and durability of the exhaust structure of the diesel engine, which wi...
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IPC IPC(8): B63H21/32
CPCB63H21/32
Inventor 邱正凤
Owner FUJIAN SOUTHEAST SHIPBUILDING