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Method and equipment for testing detergency of marine medium-speed engine lubricating oil

A technology of engine lubricating oil and test method, applied in the direction of using material absorption and weighing, etc., can solve the problems of simulating the working environment of marine internal combustion engines, etc., and achieve the effects of short test period, accurate evaluation results and low cost

Active Publication Date: 2014-09-10
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After searching the relevant documents, there are no domestic and foreign literature reports on the detergency test equipment and test methods of marine lubricating oil that simulate the working environment of marine internal combustion engines and highlight the influence of sulfide and soot on the detergency of oil products

Method used

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  • Method and equipment for testing detergency of marine medium-speed engine lubricating oil

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0020] As shown in the figure, the test equipment for the detergency of lubricating oil for marine medium-speed engines is composed of an oil oxidation container 3, an air supply system, a sealing tester 6, a temperature controller 10, and an oil supply system. The gas supply system includes an oxygen bottle 16, a diesel burner 1 and a sulfur dioxide gas bottle 9. The oil supply system includes an oil storage bottle 11 , a return metering pump 15 and an input metering pump 4 . The oil product oxidation container 3 is made of stainless steel tubes sealed at both ends, and a heater 2 is arranged outside the stainless steel tube, and the heating temperature is controlled by a temperature controller 10 . The top of the stainless steel pipe communicates with the oxygen cylinder 16, the diesel burner 1, the soot filter 5 and the oil storage bottle 11 through the gas pipeli...

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Abstract

The invention relates to a method and equipment for testing the detergency of marine medium-speed engine lubricating oil. The method includes: conducting high temperature oxidation and high temperature coking on heavy diesel-containing test oil, and blowing a sulfur dioxide gas, soot and exhaust gas to an oil film on a test panel during high temperature coking so as to make the test oil form a paint film and carbon deposit on the test panel rapidly. The test equipment mainly consists of an oil oxidation container, a gas supply system, a seal tester, a temperature controller, and an oil supply system. By utilizing the test method and equipment, the simulation test can reach a result equivalent to actual working conditions, detergency performance of the oil product can be truly reflected, the evaluation result is accurate, the test cycle is short, and the cost is low.

Description

technical field [0001] The invention relates to a method for testing the performance of lubricating oil, in particular to a method and equipment for testing the cleaning performance of lubricating oil for marine medium-speed engines. Background technique [0002] There are many kinds of detergency simulation test methods for automotive lubricating oils at home and abroad, such as: plate coke machine test method, inclined plate coke machine test method, heat pipe test method, turntable test method, etc. These test methods It is only by increasing the temperature of the test oil, heating it to form coke, and investigating the condition of coking on the plate surface, without adding exhaust gas. The fuel used in marine internal combustion engines is heavy diesel oil, which contains 2-5% sulfur compounds, and produces SO after combustion. 2 , SO 2 It will adhere to the cylinder wall, deteriorating the quality of lubricating oil, lowering the base value of lubricating oil, and ...

Claims

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Application Information

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IPC IPC(8): G01N5/02
Inventor 于军张德民张杰冯涛刘建新
Owner PETROCHINA CO LTD
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