CN106840958A - A kind of in-use automotive oil dilution degree fast appraisement method and its test device - Google Patents
A kind of in-use automotive oil dilution degree fast appraisement method and its test device Download PDFInfo
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- CN106840958A CN106840958A CN201710151035.9A CN201710151035A CN106840958A CN 106840958 A CN106840958 A CN 106840958A CN 201710151035 A CN201710151035 A CN 201710151035A CN 106840958 A CN106840958 A CN 106840958A
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- machine oil
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- graduated cylinder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/14—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference
- G01N7/16—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference by heating the material
Abstract
The invention discloses a kind of in-use automotive oil dilution degree fast appraisement method and its test device, it is V0 in-use automotive machine oil to be segmented with graduated cylinder and access overall accumulated amount, volume is V1 after heating condensation, the amount V1 of the liquid being condensed out accesses the amount V0 of machine oil divided by the segmentation from in-use automotive, obtain being detected the dilution factor that the ratio between the dilution factor R of machine oil, i.e. R=V1/V0, the two volumes R represents detected machine oil, numerical value is bigger, and dilution factor is higher；The present invention not only solves the problems, such as that existing use chromatography detection machine oil dilution factor needs the expensive gas chromatograph of configuration rates, and solving the problems, such as that spotting method precision is low, poor repeatability, the method for finally solving existing patent quick detection oil dilution ratio has that titration time is long, difficulty in computation is big, specific aim.
Description
Technical field
The invention belongs to in-use automotive oil dilution degree detection technique field, and in particular to a kind of in-use automotive oil dilution degree is fast
Fast evaluation method and its test device.
Background technology
Gasoline in-cylinder direct-jet technology has the advantages that oil spout phase, and flexibly controllable, explosion pressure is high, Instantaneous Phase speed is fast,
Direct spray petrol engine in cylinder has become the main flow in current automobile market.During gasoline cylinder injection, inevitably have
Part fuel oil is collided on cylinder wall, so that the machine oil film viscosity for touching gasoline reduction and then inflow oil on cylinder wall
Drain pan, ultimately results in oil dilution, engine is sufficiently lubricated, with the greater risk for damaging engine.Automobile
More than industry when machine oil excess dilution is reduced by the way of regulation course or time change machine oil engine damage risk, exist
Excessively the suspicion of maintenance, causes huge waste.
At present, for oil dilution detection frequently with chromatography and spotting method, wherein chromatography needs gas chromatograph,
Expensive, general enterprises are powerless to be born；And spot rule is the problems such as there are low precision, poor repeatability, it is impossible to meet car enterprise
Detection evaluation with Automobile Service unit to in-use automotive oil dilution degree.Therefore, continue to set up it is a set of being capable of simple and quick evaluation machine oil
The method and apparatus of dilution factor.
Patent No. 201510274785.6, patent name is announced for " a kind of method of quick detection oil dilution ratio "
A kind of use buret is put to the drop of machine oil solution type determined volume, and duration is put come computer oil sample sheet by measuring drop
Thinner ratio.The method needs the titration time of the multiple standard matching criterion oil samples of extra titration, is then fitted titration time and matches somebody with somebody
The polynomial equation formula than between, finally puts time substitution Fitting equations, so as to calculate dilution ratio by the drop of target oil sample.Should
Although method operating process is simple, there are problems that titration time is long, difficulty in computation is big, specific aim, it is impossible to large area
Promote.
The content of the invention
The present invention provides a kind of in-use automotive oil dilution degree fast appraisement method, and the present invention not only solves existing use color
Spectrometry detection machine oil dilution factor needs the expensive gas chromatograph problem of configuration rates, and it is low, heavy to solve spotting method precision
Renaturation difference problem, finally solve existing patent quick detection oil dilution ratio method exist titration time it is long, calculate
The problems such as difficulty is big, specific aim is poor.
The present invention is achieved through the following technical solutions：
A kind of in-use automotive oil dilution degree fast appraisement method, it is characterised in that：The evaluation method comprises the following steps；
1）It is segmented with graduated cylinder and accesses a certain amount of in-use automotive machine oil, and machine oil is poured into cucurbit, records machine oil cumulative volume amount
It is V0；
2）Cucurbit equipped with machine oil in step 1 is heated, bottleneck is sealed with bottle stopper, distillated the conduit in hole and condenser
It is connected；
3）At 260 DEG C, the low boiling range composition such as moisture, gasoline in machine oil is heated evaporation and forms high cucurbit heating-up temperature stabilization
Warm steam enters conduit, and the liquefaction under the cooling effect of condenser pipe of conduit high temperature steam forms drop into graduated cylinder；
4）When entering in graduated cylinder there is no liquid in step 3 conduit, stop heating cucurbit；
5）The amount of liquid, is denoted as V1 in the graduated cylinder of read step 4；
6）The amount V1 of step 5 accesses the amount V0 of machine oil divided by step 1 segmentation, can obtain being detected the dilution factor R, i.e. R=of machine oil
The ratio between V1/V0, the two volumes R represents the dilution factor of detected machine oil, and numerical value is bigger, and dilution factor is higher.
Further Technological improvement plan is the present invention：
Graduated cylinder when in-use automotive machine oil is accessed, answer static more than 1 hour by automobile in the step 1, access machine oil beginning section, in
Section, latter end access equivalent machine oil respectively, and oil level is accessed every time can produce after oil dilution point in more than 100ml with that should be eliminated
The influence of layer.
Further Technological improvement plan is the present invention：
It is enhancing repeatability in the step 3, temperature should try one's best and be constant at 260 DEG C.
Further Technological improvement plan is the present invention：
In the step 4, flowed out there is no drop to be judged to no drop by dripping within 1min there is no liquid in conduit
Drip.
Further Technological improvement plan is the present invention：
Machine oil totality accumulated amount is the amount V1 of liquid in V0 and step graduated cylinder in the step 1, is accurate to 0.1ml.
The present invention is achieved through the following technical solutions：
The test device includes heating furnace, conduit, condenser pipe, air deflector, graduated cylinder；The heating-up temperature of heating furnace is revolved by temperature control
Button is controlled, and cucurbit is placed on heating furnace and is heated, and the oral area of cucurbit is provided with bottle stopper carries out sealing prevents from steaming
Vapour is overflowed, and the mouth that distillates of cucurbit is connected by catheter stopper with conduit, and conduit produces liquid after steam is cooled down by condenser pipe
Graduated cylinder is flowed into by air deflector, is fixed by air deflector plug between conduit and air deflector；Condenser pipe is inclined by test tube clamp
It is fixed on iron stand.
Further Technological improvement plan is the present invention：
The condenser pipe is controlled at 25 °~30 ° with the angle of inclination of iron stand.
Further Technological improvement plan is the present invention：
The cooling liquid inlet in condenser pipe lower position connects cooling water by glue head, in condenser pipe higher position
Be expelled directly out for the cooling water of outflow by rubber tube 14 by cooling liquid outlet.
The present invention compared with prior art, with following obvious advantage：
The present invention is mainly what the low boiling range composition such as water, gasoline was designed according to the composition that machine oil is diluted in in-use automotive, tests
Method carries out the test of oil dilution degree by only needing simple machine, and the testing time is short, operating process is simple, automation journey
Spending height, and measure result with gas chromatograph has preferable correlation.
Brief description of the drawings
Fig. 1 is the structural representation of oil dilution degree device for quick testing of the present invention；
In accompanying drawing, the list of parts representated by each label is as follows：1st, heating furnace, 2, temperature control knob, 3, cucurbit, 4, bottle
Plug, 5, catheter stopper, 6, conduit, 7, test tube clamp, 8, condenser pipe, 9, air deflector plug, 10, air deflector, 11, graduated cylinder, 12, iron stand,
13rd, cooling liquid inlet glue head, 14, sebific duct.
Specific embodiment
In order that technological means of the invention, creation characteristic, reached purpose and effect are easy to understand, with reference to tool
Body is illustrated and example, and the present invention is expanded on further.
As shown in figure 1, the heating-up temperature of heating furnace 1 is controlled by temperature control knob 2, cucurbit 3 is placed on heating furnace 1
On heated, the oral area of cucurbit 3 is provided with bottle stopper 4 carries out sealing prevents steam from overflowing, and cucurbit 3 distillates mouth by leading
Pipe close 5 is connected with conduit 6, and conduit 6 produces liquid to flow into graduated cylinder 11 by air deflector 10 after steam is cooled down by condenser pipe 8,
It is fixed by air deflector plug 9 between conduit 7 and air deflector 10；Condenser pipe 8 is inclined by test tube clamp 7 and is fixed on iron stand 12
On, angle of inclination is controlled at 25 °~30 °, and the cooling liquid inlet in the lower position of condenser pipe 8 is by the first 13 connection cooling of glue
Be expelled directly out for the cooling water of outflow by rubber tube 14 by water, the cooling liquid outlet in condenser pipe higher position.
In-use automotive oil dilution degree is carried out below with the said equipment to be tested, its step includes：
1）The in-use automotive machine oil of 100ml is accessed respectively in beginning section, stage casing, latter end using graduated cylinder, and machine oil is poured into cucurbit,
Record machine oil cumulative volume amount is V0=300ml；
2）Cucurbit equipped with machine oil in step 1 is placed in heating furnace and is heated, bottleneck is sealed with bottle stopper, distillate hole with
Conduit in condenser pipe is connected；
3）Heating furnace heating-up temperature is stable at 260 DEG C, the low boiling range composition such as moisture, gasoline in machine oil is heated evaporation and is formed
High-temperature steam enters conduit, and the liquefaction under the cooling effect of condenser pipe of the high-temperature steam of conduit is formed during drop instills graduated cylinder；
4）When being flowed out there is no liquid in conduit, heating furnace is closed, stop heating cucurbit；
5）The amount of liquid in graduated cylinder is read, V1=32.2ml is denoted as；
6）The amount V0 of machine oil is accessed divided by the segmentation from in-use automotive with the amount V1 of the liquid being condensed out, obtains being detected the dilute of machine oil
Degree of releasing R, i.e. R=V1/V0=10.7%.
To being tested same sample using gas chromatograph, it is 9.3% to obtain oil dilution degree, the two difference 1.4%.
The private car and a taxi of 7000km for randomly selecting traveling 3000km after new car, replacing are maintained are carried out as above
Step is tested and gas chromatograph test, and test result contrast is as follows：
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned implementation method, also including by with
Upper technical characteristic is combined constituted technical scheme.It should be pointed out that for those skilled in the art,
Under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as this hair
Bright protection domain.
Claims (8)
1. a kind of in-use automotive oil dilution degree fast appraisement method, it is characterised in that：The evaluation method comprises the following steps：
1）It is segmented with graduated cylinder and accesses a certain amount of in-use automotive machine oil, and machine oil is poured into cucurbit, records machine oil cumulative volume amount
It is V0；
2）Cucurbit equipped with machine oil in step 1 is heated, bottleneck is sealed with bottle stopper, distillated the conduit in hole and condenser
It is connected；
3）At 260 DEG C, the low boiling range composition such as moisture, gasoline in machine oil is heated evaporation and forms high cucurbit heating-up temperature stabilization
Warm steam enters conduit, and the liquefaction under the cooling effect of condenser pipe of conduit high temperature steam forms drop into graduated cylinder；
4）When entering in graduated cylinder there is no liquid in step 3 conduit, stop heating cucurbit；
5）The amount of liquid, is denoted as V1 in the graduated cylinder of read step 4；
6）The amount V1 of step 5 accesses the amount V0 of machine oil divided by step 1 segmentation, can obtain being detected the dilution factor R, i.e. R=of machine oil
The ratio between V1/V0, the two volumes R represents the dilution factor of detected machine oil, and numerical value is bigger, and dilution factor is higher.
2. a kind of in-use automotive oil dilution degree fast appraisement method according to claim 1, it is characterised in that：The step
Graduated cylinder when in-use automotive machine oil is accessed, answer static more than 1 hour by automobile in 1, is accessing beginning section, stage casing, the latter end difference of machine oil
Equivalent machine oil is accessed, oil level is accessed every time in more than 100ml, should can produce the influence of layering after oil dilution to eliminate.
3. a kind of in-use automotive oil dilution degree fast appraisement method according to claim 1 and 2, it is characterised in that：It is described
It is enhancing repeatability in step 3, temperature should try one's best and be constant at 260 DEG C.
4. a kind of in-use automotive oil dilution degree fast appraisement method according to claim 1 and 2, it is characterised in that：It is described
In step 4, flowed out there is no drop to be judged to that no drop drips by dripping within 1min there is no liquid in conduit.
5. a kind of in-use automotive oil dilution degree fast appraisement method according to claim 1 and 2, it is characterised in that：It is described
Machine oil totality accumulated amount is the amount V1 of liquid in V0 and step graduated cylinder in step 1, is accurate to 0.1ml.
6. a kind of test device according to any in-use automotive oil dilution degree fast appraisement method of claim 1 to 5, it is special
Levy and be：The test device includes heating furnace, conduit, condenser pipe, air deflector, graduated cylinder；The heating-up temperature of heating furnace is by temperature
Control knob is controlled, and cucurbit is placed on heating furnace and is heated, and the oral area of cucurbit is provided with bottle stopper to carry out sealing anti-
Only steam is overflowed, and the mouth that distillates of cucurbit is connected by catheter stopper with conduit, and conduit is produced after by condenser pipe, steam is cooled down
Liquid flows into graduated cylinder by air deflector, is fixed by air deflector plug between conduit and air deflector；Condenser pipe passes through test tube clamp
Inclination is fixed on iron stand.
7. the test device of in-use automotive oil dilution degree fast appraisement method according to claim 6, it is characterised in that：It is described
Condenser pipe is controlled at 25 °~30 ° with the angle of inclination of iron stand.
8. the test device of in-use automotive oil dilution degree fast appraisement method according to claim 7, it is characterised in that：It is described
Cooling liquid inlet in condenser pipe lower position connects cooling water by glue head, and the coolant in condenser pipe higher position goes out
Be expelled directly out for the cooling water of outflow by rubber tube 14 by mouth.
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Cited By (5)
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| CN110095381A (en) * | 2019-05-20 | 2019-08-06 | 安徽江淮汽车集团股份有限公司 | Oil dilution degree detection device and detection method |
| CN110907185A (en) * | 2019-11-16 | 2020-03-24 | 重庆长安汽车股份有限公司 | Engine oil dilution test method |
| CN111207928A (en) * | 2020-02-20 | 2020-05-29 | 重庆长安汽车股份有限公司 | Engine oil emulsification and engine oil dilution comprehensive verification method |
| CN112179804A (en) * | 2020-09-29 | 2021-01-05 | 哈尔滨东安汽车动力股份有限公司 | Supercharged engine oil dilution evaluation method |
| CN113418818A (en) * | 2021-06-16 | 2021-09-21 | 一汽奔腾轿车有限公司 | Engine oil dilution measuring method of high-pressure direct injection gasoline engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110095381A (en) * | 2019-05-20 | 2019-08-06 | 安徽江淮汽车集团股份有限公司 | Oil dilution degree detection device and detection method |
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| CN111207928A (en) * | 2020-02-20 | 2020-05-29 | 重庆长安汽车股份有限公司 | Engine oil emulsification and engine oil dilution comprehensive verification method |
| CN112179804A (en) * | 2020-09-29 | 2021-01-05 | 哈尔滨东安汽车动力股份有限公司 | Supercharged engine oil dilution evaluation method |
| CN113418818A (en) * | 2021-06-16 | 2021-09-21 | 一汽奔腾轿车有限公司 | Engine oil dilution measuring method of high-pressure direct injection gasoline engine |
| CN113418818B (en) * | 2021-06-16 | 2022-12-16 | 一汽奔腾轿车有限公司 | Method for measuring dilution of high-pressure direct injection gasoline engine oil |
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Effective date of registration: 20200916 Address after: No.1, Meicheng Road, economic and Technological Development Zone, Huai'an City, Jiangsu Province, 223000 Patentee after: Huai'an Kechuang Intellectual Property Operation Co.,Ltd. Address before: 223005 Jiangsu city in Huaian Province, while the economic and Technological Development Zone, Road No. 1 Patentee before: HUAIYIN INSTITUTE OF TECHNOLOGY |
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Effective date of registration: 20201214 Address after: 211600 No. 47, Jianshe Road, Jinhu County, Jiangsu, Huaian Patentee after: Jinhu comprehensive inspection and Testing Center Address before: No.1, Meicheng Road, economic and Technological Development Zone, Huai'an City, Jiangsu Province, 223000 Patentee before: Huai'an Kechuang Intellectual Property Operation Co.,Ltd. |