Method for detecting whether diesel oil in diesel oil pump leaks into lubricating oil

A lubricating oil and diesel pump technology, applied in the field of analytical chemistry, can solve problems such as not particularly effective and timely methods, metal wear, unstable metal ion content, etc., and achieve the effect of improving specificity and stability
CN106526022AActive Publication Date: 2017-03-22SGS STANDARD TECHNICAL SERVICES SHANGHAI CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SGS STANDARD TECHNICAL SERVICES SHANGHAI CO LTD
Publication Date
2017-03-22

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Abstract

The invention belongs to the technical field of analytical chemistry and relates to a method for detecting whether diesel oil in a diesel oil pump leaks into lubricating oil. The method comprises 1) adding a fluorescent probe compound into diesel oil, 2) determining whether diesel oil pump lubricating oil contains the fluorescent probe compound through a liquid chromatography fluorescence detector combined method, and 3) according to the detection result of the step 2, determining whether the diesel oil leaks into the lubricating oil and determining the content of the fluorescent probe compound. Compared with the prior art, the method comprises adding the fluorescent probe compound into diesel oil in advance and regularly monitoring the fluorescent probe compound content.The diesel and lubricating oil do not contain the fluorescent probe compound and the fluorescent agent is stable at a high temperature so that the fluorescent agent is suitable for the diesel engine high temperature operating environment, and the method has high specificity and stability and is suitable for rapid monitoring of leakage of diesel oil in the diesel oil pump into the lubricating oil.
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Description

[0001] [technical field]

[0002] The invention belongs to the technical field of analytical chemistry, in particular to a method for detecting whether diesel oil in a diesel pump leaks into lubricating oil.

[0003] [Background technique]

[0004] Diesel pump is an important part of diesel engine, but poor sealing or poor sealing performance during use is a big problem faced by diesel pumps. Due to poor sealing, the diesel in the diesel pump will leak out of the diesel pump, and the lubricating oil will Mixing, resulting in poor lubrication performance, serious wear and tear of the diesel pump, resulting in a larger amount of diesel leakage, which not only seriously affects the performance of diesel locomotives, but also greatly increases energy consumption and wastes energy. Therefore, it is necessary to monitor in time whether the diesel pump is well sealed during operation and whether the diesel oil leaks into the lubricating oil.

[0005] The methods for monitoring whethe...

Claims

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