Device and method for detecting high temperature viscosity of oil
An oil and viscosity technology, which is applied in the field of devices for detecting high temperature viscosity of oil, can solve the problems of poor oil test reproducibility and inability to obtain ideal test results, and achieves simple test methods, high measurement accuracy, and reproducibility. bad effect
Pending Publication Date: 2019-04-26
HUANGSHAN UNIV
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Problems solved by technology
[0007] The current oil standard kinematic viscosity test in my country is only carried out to 100°C. For oil kinematic viscosity at temperatures higher than 100°C (especially higher than 130°C), in view of the sealing performance of domestic testing instruments and the recurrence of oil testing at high temperatures Due to problems such as poor performance, ideal test results are often not obtained.
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[0046] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0047] like figure 1 As shown, a device for detecting high-temperature viscosity of oil includes a measuring pipeline system, a constant temperature bath system and a data acquisition system.
[0048]The constant temperature bath system includes a first constant temperature furnace 1 , a second constant temperature furnace 2 , a third constant temperature furnace 3 , a fourth constant temperature furnace 4 and a fifth constant temperature furnace 5 . The constant temperatures of the first, second, third, fourth, and fifth constant temperature furnaces are respectively set to 25°C, 70°C, 80°C, 90°C, and 100°C. The first constant temperature furnace 1 is a water bath furnace, the second constant temperature furnace 2, the third constant temperature furnace 3, the fourth constant temperature furnace 4, and the fifth constant temperature...
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The invention provides a device and method for detecting the high temperature viscosity of oil. The device comprises a measuring pipeline system, a constant temperature bath system and a data acquisition system; the constant temperature bath system comprises first, second, third, fourth and fifth constant temperature furnaces, each of the furnaces is provided with capillary helical tubes immersedor buried in working media of the constant temperature furnaces, the measuring pipeline system comprises a constant current pump, a globe valve, a filter, a back pressure valve, a cooling device and aliquid collector, the data acquisition system includes a thermocouple, a pressure difference transmitter, a data acquisition device and an industrial control computer, and the detection method comprises the steps of obtaining the motion viscosity of oil at 70, 80, 90 and 100 DEG C by a pressure difference comparing relationship between water and the oil, and according to the motion viscosity of the oil at 70, 80 , 90 and 100 DEG C, calculating the motion viscosity of the oil at a high temperature. The device and method can obtain the oil high temperature viscosity more reliably.
Description
technical field [0001] The invention relates to the technical field of oil detection, in particular to a device and method for detecting high-temperature viscosity of oil. Background technique [0002] Oil testing, also known as oil testing, is a test for performance indicators of various vehicle fuels, lubricating oils, greases, and automobile production and processing media. [0003] Viscosity arises from the internal friction of a liquid. When the oil moves relative to each other under the action of external force, the resistance generated between the oil molecules prevents the oil from flowing smoothly, and the resistance is called viscosity. Viscosity measurement methods are divided into two categories: absolute viscosity and relative viscosity. Among them, absolute viscosity is divided into dynamic viscosity and kinematic viscosity. Kinematic viscosity is one of the important indicators of lubricating oil. If the viscosity is too high, the power of the generator wil...
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IPC IPC(8): G01N11/08
CPCG01N11/08G01N2011/002
Inventor 姚婷李鹤胡建强杨宏伟孙秉康张猛
Owner HUANGSHAN UNIV