Corrosion-resistant water jacket exhaust pipe

Abstract

The invention discloses a corrosion-resistant water jacket exhaust pipe which comprises an outer pipe, an inner pipe, a water inlet connector, a water outlet connector, air inlet connectors, an exhaust connector and liquid suction assemblies. The inner pipe is coaxially arranged in the outer pipe; one end of the water inlet connector and one end of the water outlet connector extend into the outer pipe and communicate with a cooling water cavity located between the outer pipe and the inner pipe; one ends of the exhaust connector and the plurality of air inlet connectors are respectively communicated with an air cavity in the inner pipe; the other ends of the exhaust connector and the plurality of air inlet connectors are arranged to outwards penetrate out of the outer pipe; the plurality of liquid suction assemblies are respectively arranged in the air cavity of the inner pipe; each liquid suction assembly comprises liquid suction cotton and a net bag; each net bag is wrapped outside the corresponding liquid suction cotton; and the corrosion resistance of the inner pipe can be effectively improved, so that the service life is prolonged.

Description

【Technical field】 [0001] The invention relates to the technical field of water jacket exhaust pipes, in particular to the technical field of corrosion-resistant water jacket exhaust pipes. 【Background technique】 [0002] The water jacket exhaust pipe is an important part of a high-power marine engine, usually including an air cavity and a cooling water cavity. When working, each cylinder of the diesel engine sends high-temperature exhaust gas into the supercharger along the air cavity, and the cooling water cavity surrounded by the air cavity continuously absorbs heat to reduce the temperature. [0003] Gasoline contains not only hydrocarbons, but also a variety of other compounds. After combustion in the cylinder, the exhaust gas finally discharged contains carbon monoxide, sulfur dioxide, hydrocarbons, nitrogen oxides, and particulate matter in addition to water vapor and carbon dioxide. Therefore, when the exhaust gas passes through the air cavity and is cooled, it will ...

AI Technical Summary

Problems solved by technology

On the one hand, pitting will gradually expand in the depth direction until the material rusts through. On the other hand, when the pinholes corroded by the condensate are densely distributed, the corrosion products will cover the surface of the air cavity, which will cause flaky peeling on the surface of the air cavity. Phenomenon that needs to be resolved urgently

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