CN102830083A - Rapid testing method of oil replacement for heavy-load diesel engine lubricating oil - Google Patents
Rapid testing method of oil replacement for heavy-load diesel engine lubricating oil Download PDFInfo
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- CN102830083A CN102830083A CN2012102766548A CN201210276654A CN102830083A CN 102830083 A CN102830083 A CN 102830083A CN 2012102766548 A CN2012102766548 A CN 2012102766548A CN 201210276654 A CN201210276654 A CN 201210276654A CN 102830083 A CN102830083 A CN 102830083A
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Abstract
The invention relates to a rapid testing method of oil replacement for heavy-load diesel engine lubricating oil. The rapid testing method is characterized by comprising the following particular steps of: taking an oil sample of 100mL around of engine oil from an oil scale guide pipe, wherein because a heavy-load diesel engine is a national III heavy-load diesel engine developed autonomously by the first auto work, after the matched business car drives for certain mileage, and when whether oil is required to be replaced is detected, the heavy-load diesel engine is at the idle turning state; detecting the engine oil oxidation value by utilizing a full-automatic oxidation value determining meter by adopting an infrared spectrum method, and generating the detection result. Oxidation value is an index of the anti-oxidation performance of the engine lubricating oil, the infrared spectrum is adopted, and the absorbance of carbonyl group in 1720cm<-1> in the difference spectrum can analyze the variation situation of oxide generated by the engine lubricating oil caused by high-temperature oxidation in the vehicle using process; and the replacement period of the engine lubricating oil is determined through the analysis of the oxidation value, not only can the oil be used economically, but also the engine can be ensured to run well.
Description
Technical field
The present invention relates to a kind of heavy-duty diesel engine lubricating oil method for quickly detecting of changing oil, particularly relate to state's III heavy-duty diesel engine lubricating oil method for quickly detecting of changing oil, belong to the technical field of lubricant applications.
Background technology
Because lubricating oil is in use, can aged deterioration gradually, when its performance changes, should in time change oil in the time of can not playing normal lubrication.
All the time; It is that the drain period of recommending with automobile production producer vehicle instructions is a standard that China's user vehicle is changed principle to engine oil, carry out and change oil on schedule, but there are many problems in this criterion of changing oil in practical application; As because of actual service conditions different; When the vehicle that has had arrived with reference to the drain period, engine oil each item performance index were all normal, changed engine oil this moment and certainly will cause the lubricating oil waste; The vehicle that has is not before arriving with reference to the drain period, and some performance index of engine oil are the value of reaching capacity, continues this moment to use, and certainly will cause damage to a certain degree to engine.
Summary of the invention
The object of the present invention is to provide a kind of heavy-duty diesel engine lubricating oil method for quickly detecting of changing oil, is the replacement cycle of judging engine oil through the analysis of oxidation value, can be economical with oil, can guarantee that again engine running is good.
Technical scheme of the present invention is achieved in that the heavy-duty diesel engine lubricating oil method for quickly detecting of changing oil, and it is characterized in that concrete detection step:
1) heavy-duty diesel engine is state's III heavy-duty diesel engine of a vapour independent development; After the commercial car of its coupling is gone certain mileage; Need to detect in the time of whether need changing oil, it is under the idle state, from the oil scale conduit, get about engine oil oil sample 100 mL;
2) adopt infra-red sepectrometry, utilize full-automatic oxidation value analyzer detection of engine oil oxidation value, the concrete operations step is following:
A. double-click full-automatic oxidation value analyzer function software shortcut icon at computer desktop,, can get into the instrumentation interface if instrument is online and be in open state;
B. behind the working procedure, get into log-in interface, click login option, get into main interface;
C. begin to detect before the oil sample, click the Methods button of Star below, access method is selected the interface;
D. in the check box on the Hydraulic-Version3 option left side, click, green check mark pattern occurs, click the Activate button then, activate institute's choosing method;
E. click the Star button, get into editing interface, can edit the information of doing sample;
F. the sample message composed gets into next step; After cleaning the detector crystal surface, closure detector is clicked next step, places sample at the detector place, edits the sample title this moment; The spectrogram district is for placing the infrared spectrogram of sample;
G. click next step, instrument begins test sample, and detection gets into the test results report interface after accomplishing automatically;
H. click " Details ", can check spectrogram, click " Data Handling ", the data processing interface occurs with testing result;
I. current testing result of checking is added in the spectrogram storehouse, click " Add To A Library ", the interface occurs, click " Browse ", in the Libraries file, select library file " Oil Library " back to click and open;
J. in the interface, click " Add To A Library ", current detection result just is added in the spectrogram storehouse.In " Match Text " option hurdle, import title before adding, so that distinguish different oil products;
K. spectrogram contrast operation: choose earlier the testing result that will check, get into the data processing interface, click " Re-Analyze " option, open the interface, in method base, find " Engine-Library search.a2m " file, and choose; Choose and click " Re-Analyze " after the method, the interface occurs, click " Details ", spectrogram contrast interface appears in option, and red spectral line is the testing result of current selected, and blue spectral line is the spectral line that is used as contrast in the spectrogram storehouse of software default; The tabulation of below, interface is existing result in the spectrogram storehouse, selects different result in the spectrogram storehouse, can carry out the spectral line comparison to arbitrary result in current results and the spectrogram storehouse;
Testing result generates: check the file of selecting institute will generate report in the interface in the spectrogram result, click " Report " option, computing machine is the form of generation PDF automatically, reports out oxidation value in the form automatically; Utilize the infrared spectrum principle, when with a branch of infrared light (having continuous wavelength) irradiation one material, the molecule of this material will absorb a part of luminous energy, and it is become another kind of energy, i.e. the vibrational energy of molecule and rotational energy; Therefore if its light that sees through is carried out chromatic dispersion with monochromator, just can obtain the dark-coloured bands of a spectrum of a band.If with wavelength or wave number is horizontal ordinate, be ordinate with percentage absorptivity or transmitance, note these bands of a spectrum, just obtained the infrared spectrogram of this material;
Oxidation value is an index of engine oil antioxygenic property, and it is to adopt infrared spectrum, 1720cm in the difference spectrum
-1The absorbance log of place carbonyl group stretching vibration can be analyzed the oxide situation of change that engine oil generates because of high-temperature oxydation in the vehicle use;
3), judge whether employed engine oil changes oil according to engine oil oxidation value numerical value;
4), then should change oil if oxidation value is higher than 0.8A/0.1mm.
Good effect of the present invention is to combine user's service test, and according to real road situation and means of transportation, regulation mileage acquisition test oil sample at first carries out the oxidation value analysis to the test oil sample of being gathered, and judges whether employed engine oil changes oil.If oxidation value is higher than 0.8A/0.1mm, the expression degree of oxidation that draws oil sample is serious, should change oil, and avoids damaging because of the quality of lubrication oil decay causes engine.
Embodiment
Below in conjunction with embodiment the present invention is done further description:
Embodiment 1:
CA4252P21K22T1E tractor truck (1# car) analysis result that draws oil sample is seen table 1.
The technical requirement of contrast GB/T 7607-2010 " diesel engine oil criteria for changing oil ", what this tractor adopted is CH-4 15W-40 diesel engine oil, judges according to the criteria for changing oil of CH-4 in the table 2, needn't change oil.
Table 2 is seen in the technical requirement of GB/T 7607-2010 " diesel engine oil criteria for changing oil ".
But see that from the actual operating state of CA4252P21K22T1E tractor truck (1# car) oil consumption is high, through engine is opened and inspect, find that piston deposit is more, other situation is normal, is judged to be that used engine oil oxidation causes.Get the testing result of engine oil from table 1 and can find out that oxidation value reaches 0.81A/0.1mm.
Conclusion: this tractor truck should be changed oil at 43924 kilometers.
Embodiment 2:
CA4252P21K22T1E tractor truck (2# car) analysis result that draws oil sample is seen table 3.
See that from the actual operating state of CA4252P21K22T1E tractor truck (2# car) oil consumption is normal, through engine is opened and inspect, situation is normal.Can find out (this tractor adopt be CH-4 15W-40 diesel engine oil) from the testing result that table 3 is got engine oil, oxidation value reaches 0.80A/0.1mm, judges according to the criteria for changing oil of CH-4 in the table 2, needn't change oil.
Conclusion: this tractor truck is in the normal range at 20032 kilometers oil properties.
Embodiment 3:
CA4252P21K22T1E tractor truck (3# car) analysis result that draws oil sample is seen table 4.
See that from the actual operating state of CA4252P21K22T1E tractor truck (3# car) oil consumption is normal, through engine is opened and inspect, situation is normal.Can find out (this tractor adopt be CH-4 15W-40 diesel engine oil) from the testing result that table 4 is got engine oil, oxidation value reaches 0.31A/0.1mm, judges according to the criteria for changing oil of CH-4 in the table 2, needn't change oil.
Conclusion: this tractor truck is in the normal range at 32226 kilometers oil properties.
Claims (1)
1. the heavy-duty diesel engine lubricating oil method for quickly detecting of changing oil is characterized in that concrete detection step:
Heavy-duty diesel engine is state's III heavy-duty diesel engine of a vapour independent development; After the commercial car of its coupling is gone certain mileage; Need to detect in the time of whether need changing oil, it is under the idle state, from the oil scale conduit, get about engine oil oil sample 100 mL;
Adopt infra-red sepectrometry, utilize full-automatic oxidation value analyzer detection of engine oil oxidation value, the concrete operations step is following:
Double-click full-automatic oxidation value analyzer function software shortcut icon at computer desktop,, can get into the instrumentation interface if instrument is online and be in open state;
Behind the working procedure, get into log-in interface, click login option, get into main interface;
Begin to detect before the oil sample, click the Methods button of Star below, access method is selected the interface;
In the check box on the Hydraulic-Version3 option left side, click, green check mark pattern occurs, click the Activate button then, activate institute's choosing method;
Click the Star button, get into editing interface, can edit the information of doing sample;
The sample message composed gets into next step; After cleaning the detector crystal surface, closure detector is clicked next step, places sample at the detector place, edits the sample title this moment; The spectrogram district is for placing the infrared spectrogram of sample;
Click next step, instrument begins test sample, and detection gets into the test results report interface after accomplishing automatically;
Click " Details ", can check spectrogram, click " Data Handling ", the data processing interface occurs with testing result;
Current testing result of checking is added in the spectrogram storehouse, click " Add To A Library ", the interface occurs, click " Browse ", in the Libraries file, select library file " Oil Library " back to click and open;
In the interface, click " Add To A Library ", current detection result just is added in the spectrogram storehouse;
In " Match Text " option hurdle, import title before adding, so that distinguish different oil products;
The spectrogram contrast operation: choose earlier the testing result that will check, get into the data processing interface, click " Re-Analyze " option, open the interface, in method base, find " Engine-Library search.a2m " file, and choose; Choose and click " Re-Analyze " after the method, the interface occurs, click " Details ", spectrogram contrast interface appears in option, and red spectral line is the testing result of current selected, and blue spectral line is the spectral line that is used as contrast in the spectrogram storehouse of software default; The tabulation of below, interface is existing result in the spectrogram storehouse, selects different result in the spectrogram storehouse, can carry out the spectral line comparison to arbitrary result in current results and the spectrogram storehouse;
Testing result generates: check the file of selecting institute will generate report in the interface in the spectrogram result, click " Report " option, computing machine is the form of generation PDF automatically, reports out oxidation value in the form automatically; Utilize the infrared spectrum principle, when with a branch of infrared light (having continuous wavelength) irradiation one material, the molecule of this material will absorb a part of luminous energy, and it is become another kind of energy, i.e. the vibrational energy of molecule and rotational energy; Therefore if its light that sees through is carried out chromatic dispersion with monochromator, just can obtain the dark-coloured bands of a spectrum of a band;
If with wavelength or wave number is horizontal ordinate, be ordinate with percentage absorptivity or transmitance, note these bands of a spectrum, just obtained the infrared spectrogram of this material;
Oxidation value is an index of engine oil antioxygenic property, and it is to adopt infrared spectrum, 1720cm in the difference spectrum
-1The absorbance log of place carbonyl group stretching vibration can be analyzed the oxide situation of change that engine oil generates because of high-temperature oxydation in the vehicle use;
According to engine oil oxidation value numerical value, judge whether employed engine oil changes oil;
If oxidation value is higher than 0.8A/0.1mm, then should change oil.
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| CN2012102766548A CN102830083A (en) | 2012-08-06 | 2012-08-06 | Rapid testing method of oil replacement for heavy-load diesel engine lubricating oil |
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| CN2012102766548A CN102830083A (en) | 2012-08-06 | 2012-08-06 | Rapid testing method of oil replacement for heavy-load diesel engine lubricating oil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954225A (en) * | 2016-05-13 | 2016-09-21 | 常熟理工学院 | Method and device for judging lubricating oil replacement cycle of diesel engine |
| CN105987886A (en) * | 2015-02-03 | 2016-10-05 | 中国石油化工股份有限公司 | Method for determining hydrocracking tail oil property by near-infrared spectroscopy |
| CN106526022A (en) * | 2016-11-09 | 2017-03-22 | 通标标准技术服务(上海)有限公司 | Method for detecting whether diesel oil in diesel oil pump leaks into lubricating oil |
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| CN101782512A (en) * | 2010-03-31 | 2010-07-21 | 中国人民解放军总后勤部油料研究所 | Method for rapidly measuring physical and chemical quality indexes of in-use lubricating oil |
-
2012
- 2012-08-06 CN CN2012102766548A patent/CN102830083A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782512A (en) * | 2010-03-31 | 2010-07-21 | 中国人民解放军总后勤部油料研究所 | Method for rapidly measuring physical and chemical quality indexes of in-use lubricating oil |
Non-Patent Citations (3)
| Title |
|---|
| 冯心凭等: "用差示红外光谱法测定旧汽油机油中氧化值和硝化值", 《石油与天然气化工》, vol. 31, no. 3, 31 December 2002 (2002-12-31), pages 154 - 157 * |
| 徐金龙等: "基于红外光谱技术的柴油机油氧化降解换油指标研究", 《润滑油》, vol. 26, no. 4, 31 August 2011 (2011-08-31), pages 37 - 41 * |
| 王超华等: "用红外光谱确定柴油机润滑油的更换周期", 《天然气工业》, vol. 17, no. 3, 31 May 1997 (1997-05-31), pages 83 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987886A (en) * | 2015-02-03 | 2016-10-05 | 中国石油化工股份有限公司 | Method for determining hydrocracking tail oil property by near-infrared spectroscopy |
| CN105987886B (en) * | 2015-02-03 | 2019-11-15 | 中国石油化工股份有限公司 | The method of near infrared ray hydrocracking tail oil property |
| CN105954225A (en) * | 2016-05-13 | 2016-09-21 | 常熟理工学院 | Method and device for judging lubricating oil replacement cycle of diesel engine |
| CN106526022A (en) * | 2016-11-09 | 2017-03-22 | 通标标准技术服务(上海)有限公司 | Method for detecting whether diesel oil in diesel oil pump leaks into lubricating oil |
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Application publication date: 20121219 |