Marine integrated oil throwing tool pipe and using method

By designing an integrated marine oil injection tooling pipe and butterfly valve control system, seamless switching of the main lubricating oil pipeline and online cleanliness monitoring were achieved, solving the problems of long operation cycles and secondary pollution in traditional methods, and improving construction efficiency and real-time cleanliness assessment.

CN121251968APending Publication Date: 2026-01-02JIANGNAN SHIPYARD (GRP) CO LTD
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Patent Information

Application Number
CN202511401630.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-28
Publication Date
2026-01-02

AI Technical Summary

Technical Problem

Traditional main lubricating oil pipeline flushing methods have long operation cycles, high risk of secondary contamination due to pipeline disassembly and reconnection, and lack real-time cleanliness monitoring methods, making it impossible to ensure that the oil cleanliness meets the standards.

Method used

An integrated marine oil injection tooling pipe was designed, including an oil inlet, an oil outlet, an explosion-proof door temporary pipe assembly, and a three-way temporary pipe assembly. Combined with butterfly valve control, it achieves seamless switching between external and internal oil injection. It is also equipped with an online particle size measurement component to monitor the lubricating oil cleanliness in real time.

Benefits of technology

It reduced pipeline adjustment time, prevented secondary pollution, enabled real-time monitoring and evaluation of lubricating oil cleanliness, shortened construction time, and increased shipbuilding speed.

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Abstract

According to the integrated oil feeding tool pipe for the ship and the using method, after the integrated oil feeding tool pipe is installed at a time, in the whole oil feeding period, a temporary pipeline does not need to be adjusted, switching between oil feeding outside a machine and oil feeding inside the machine can be achieved through control over a butterfly valve, the pipeline adjusting time can be shortened by 3-4 days, and the oil feeding efficiency is improved. And the risk that the pipeline and the flushing oil are polluted again in the pipeline adjusting process is prevented. Meanwhile, on-line granularity measuring equipment is additionally arranged, lubricating oil particles can be measured in real time, the trend change of the granularity and data printing are observed through the measuring equipment, the time for taking an oil sample and then testing a report in the past is shortened, incorrect measurement caused by pollution of the oil sample is also prevented, and the measuring accuracy is improved. Meanwhile, the oil throwing data of the main engine of each ship can be stored through the application of an online granularity measurement and storage function, later data query and summarization are facilitated, the total construction time of oil throwing of the main engine is shortened through the application of pipeline integration and measurement equipment, and meanwhile the ship building speed is increased.
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