Novel method and device for detecting evaporation loss of lubricating oil

A technology of evaporation loss and lubricating oil, which is applied in the direction of weighing by removing certain components to achieve accurate measurement results, reduce injury to measurement personnel, and overcome pollution problems.

Inactive Publication Date: 2010-11-24
NORTH DALIAN ANALYTICAL INSTR
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  • Abstract
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Problems solved by technology

[0004] In order to solve the above problems, the purpose of this invention is to provide a new method and device for measuring the evaporation loss of lubricating oil, which replaces the existing Noack me

Method used

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  • Novel method and device for detecting evaporation loss of lubricating oil
  • Novel method and device for detecting evaporation loss of lubricating oil
  • Novel method and device for detecting evaporation loss of lubricating oil

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Embodiment Construction

[0023] The present invention combines the flexible heating body with the ceramic flat heating body, uses PID fuzzy control, quickly heats the sample to the actual test temperature within the time T, and can maintain the temperature control accuracy of 245.2±0.5°C until the test is completed, specifically The method steps are as follows:

[0024] 1. Prepare other necessary test conditions stipulated by the "Noack" method, including: weighing the sample, connecting the pipeline, preparing the evaporating dry pot, adjusting the vacuum degree, and connecting to the thermostat;

[0025] 2. Put the evaporating dry pot into the flexible heating body, ensure that the flexible heating body wraps the dry pot tightly, and the bottom of the dry pot should be in good contact with the flat high-efficiency heating body;

[0026] 3. At the beginning of the test, the temperature control system automatically controls the heating rate of the sample to ensure that it reaches 245.2±0.5°C within th...

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Abstract

The invention discloses a novel method and a novel device for detecting the evaporation loss of lubricating oil and provides a flexible heating body for replacing a 'Wood's alloy' heating body mode adopted in the conventional Noack method. The device for detecting the evaporation loss of the lubricating oil adopted in the invention comprises the flexible heating body, a ceramic flat plate heating body, an evaporation boiler, a sealing cover, a sensor inserting device and a temperature sensor, wherein the boiler bottom of the evaporation boiler tightly contacts the ceramic flat plate heating body, a side wall of a shell of the evaporation boiler is wrapped by a layer of the flexible heating body, and the top of the evaporation boiler is provided with the sealing cover; the sealing cover is provided with the sensor inserting device; and the temperature sensor is inserted into or pulled out of the evaporation boiler from the sensor inserting device. The novel method and the novel device solve the problem of pollution generated during the detection, reduce damages to natural environment and human bodies and reduce detection cost.

Description

technical field [0001] The invention relates to a new method and device for detecting the evaporation loss of lubricating oil. Background technique [0002] The evaporation of lubricating oil during use will cause the amount of lubricating oil in the lubricating system to gradually decrease, which will eventually affect the oil supply. Therefore, evaporation loss is a very important indicator in the quality inspection of lubricating oil. Lubricating oil manufacturers and research departments must be equipped with this kind of testing equipment to evaluate the quality of oil products. [0003] At present, the method for detecting the evaporation loss of lubricating oil is: Noack method, in accordance with the "Noack method", in the detection process, a heavy metal "Wood alloy" (Alloy Wood), which contains bismuth, Lead, tin, cadmium and other metals have a low melting point between 60°C and 70°C. The method stipulates that the evaporative dry pan containing the oil sample sh...

Claims

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Application Information

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IPC IPC(8): G01N5/04
Inventor 许鸣宇崔长军王开元宋吉胜
Owner NORTH DALIAN ANALYTICAL INSTR
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