Oil return connecting device

Abstract

The invention relates to the technical field of shipbuilding, and discloses an oil return connecting device. The oil return connecting device comprises a corrugated pipe, a flow guiding pipe, a firstseat plate and a second seat plate; the first seat plate is fixedly arranged on a diesel engine oil sump; a first opening matched with the corrugated pipe is formed in the first seat plate; the secondseat plate is fixedly arranged on a grease storage cabin; a second opening communicating with an oil return hole of the grease storage cabin is formed in the second seat plate; the upper end of the corrugated pipe is fixedly connected with the first seat plate; the lower end of the corrugated pipe is fixedly connected with the second seat plate; the flow guiding pipe is arranged in the corrugatedpipe; the oil inlet end of the flow guiding pipe communicates with an oil draining hole of the diesel engine oil sump; the oil outlet end of the flow guiding pipe communicates with the oil return hole of the grease storage cabin through the second opening; and a filtering net is arranged at the oil inlet end of the flow guiding pipe. The oil return connecting device has the advantages of convenience in assembly, high working efficiency, capability of effectively absorbing vibration produced by a diesel engine, high stability, high safety and long service life.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to an oil return connection device. Background technique [0002] Ships above 10,000 tons are usually equipped with dry lubricated diesel engines as power plants during construction. The lubricating oil circulation storage tank of dry lubricated diesel engine is set independently from the diesel engine. The lubricating oil circulation storage tank of the 10,000-ton marine diesel engine is usually set independently directly under the oil pan of the diesel engine, and the lubricating oil is passed through at least one oil return hole. The finished lubricating oil is collected from the oil pan and returned to the lubricating oil circulation storage tank for recycling. [0003] At present, there are mainly two ways to connect the oil return port of the diesel engine and the lubricating oil circulation storage tank: seamless steel pipe hard connection and rubber skin soft connectio...

AI Technical Summary

Problems solved by technology

The hard connection of seamless steel pipe is simple in structure, easy to manufacture, and low in cost, but the diesel engine will generate vibration and torsion when it is running. Long-term vibration and torsion will easily cause fatigue and rupture of the hard connection interface, resulting in leakage of lubricating oil or sewage into the lubricating oil circulation storage cabin and cause safety accidents; the rubber skin soft connection can well absorb the vibration and torsion generated by the diesel engine when it is running, but the rubber material is easy to age and requires frequent maintenance and replacement. The maintenance and management costs are high, and the maintenance and management are not timely. It is easy to cause oil leakage and cause safety accidents

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