A detection device and detection method for moisture content in lubricating oil

Abstract

The invention discloses a device for detecting the moisture content of lubricating oil and a detection method thereof. The device comprises a platform, an infrared emission assembly, a light receiving assembly, a signal processing assembly, a signal acquisition and transmission assembly and an external oil conveying pipe, wherein the middle section of the external oil conveying pipe is fixed in the platform, and two ends of the external oil conveying pipe are connected with a lubricating oil pipeline; the light receiving assembly is connected in series with the signal processing assembly and the signal acquisition and transmission assembly in sequence; a super-hydrophilic and super-oleophobic coating layer is coated in a detection region at the bottom of the external oil conveying pipe, so that a super-hydrophilic and super-oleophobic filter film is formed in the detection region. By adopting the super-hydrophilic and super-oleophobic coating layer, when flowing through the detection region of the external lubricating oil pipeline, oil liquid continues to flow through the pipeline under the action of the super-hydrophilic and super-oleophobic filter film, and water droplets permeate the filter film and are gathered in the detection region; therefore, the shortcoming that a detection signal generated by the fact that a single water droplet passes through the detection region is not obvious is overcome; the sensitivity of the detection device is improved, so that a detection result is accurate.

Description

technical field [0001] The invention relates to a real-time on-line detection technology of water content in lubricating oil, in particular to an on-line water content detection method and device in lubricating oil based on infrared absorption of hydrophilic and oleophobic film reflection. Background technique [0002] Lubricating oil is the "blood" of mechanical equipment. It plays an important role in sealing, lubricating, reducing wear, cooling, cleaning, vibration reduction and anticorrosion in mechanical equipment. The life of the lubrication system and the lubrication sub-components is closely related to the cleanliness of the lubricating oil. Among them, the water pollution in the lubricating oil is one of the most common pollutions. The scientific and accurate measurement of the water content is the key to the pollution degree of the lubricating oil at present. The main target of detection. [0003] At present, the methods for detecting the water content of lubricat...

AI Technical Summary

Problems solved by technology

This method has many constraints, such as the measurement value is related to the fluid flow state, the conductivity is related to the liquid ion concentration, etc.

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