CN102749365A - Calibration method in on-line detection for moisture content of lubricating oil - Google Patents
Calibration method in on-line detection for moisture content of lubricating oil Download PDFInfo
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- CN102749365A CN102749365A CN2012102658863A CN201210265886A CN102749365A CN 102749365 A CN102749365 A CN 102749365A CN 2012102658863 A CN2012102658863 A CN 2012102658863A CN 201210265886 A CN201210265886 A CN 201210265886A CN 102749365 A CN102749365 A CN 102749365A
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- lubricating oil
- oil
- calibration method
- moisture content
- water cut
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Abstract
The invention provides a calibration method in on-line detection for the moisture content of lubricating oil, so as to be capable of accurately measuring the low moisture content of the lubricating oil. Two auxiliary pipelines are connected with a lubricating oil supply pipeline in parallel, wherein a capacitive sensor is arranged on one auxiliary pipeline and used for measuring the moisture content of the lubricating oil; a storage tank is arranged in the other auxiliary pipeline; and a standard oil sample is contained in the storage tank and used for calibrating.
Description
Technical field
The present invention relates to a kind of to lubricating oil water cut on-line measuring device enforcement Calibration Method.
Background technology
At present; The capacitance measurements that adopt in the lubricating oil moisture measurement, capacitance measurement method are to utilize that the water percentage difference causes that specific inductive capacity changes in the oil product more, when the capacitance type sensor medium is oil product; Just cause its electric capacitance change, can measure the water percentage of oil product.To receive character (viscosity, wax, colloid), the external condition influences such as (temperature, pressure, flow states) of oil product in this measuring method use; Current measuring methods facts have proved it also is feasible to the method that latter's (external condition) adopts compensation usually; But the former influence of (influencing the character of oil product) is not all added consideration, and the change of institute's oil product specific inductive capacity of surveying will influence measuring accuracy when in lubricated article use, changing the trade mark, and especially measurement more can cause bigger error to the lubricating oil low water content.
The shortcoming of prior art: on-the-spot self calibration is not arranged in the various measurement mechanisms, can not real time calibration or compensation when the survey oil product changes.
Summary of the invention
The object of the invention: provide a kind of lubricating oil water cut on-line measuring device is implemented Calibration Method, so that can accurately measure to low water content in the lubricating oil.
In order to realize the object of the invention, intend the technical method below adopting:
In the lubricant oil feeding pipe road and connect two auxiliary pipings; Capacitance type sensor wherein is set on the subsidiary conduit to be used as measuring the lubricating oil water cut in the oil supply pipe; And a logical storage tank in another subsidiary conduit, the standard oil sample of placing the lubricating oil that uses in the storage tank is so that calibration usefulness.On preceding (measure with) subsidiary conduit, oil well pump is installed so that oil pumping usefulness before and after the calibration.
Then the specific inductive capacity of capacitance type sensor medium is also different because of the SAE number difference in actual use, and is non-linear shape relation, therefore in design, will demarcate in advance each trade mark lubricating oil.Staking-out work has: add the different water yields in every kind of standard sample; Determine corresponding water cut; Confirm the corresponding relation of actual water percentage of different trade mark lubricating oil and measured value; Be stored in form in the storer of measuring system, during actual measurement the water percentage that records gone out measured value through computation of table lookup.In using at ordinary times, through the compensation for calibrating errors SYSTEMATIC ERRORS OF INSTRUMENTATION SYSTEMS.
Characteristics of the present invention: through to measuring the standard oil sample with the importing lubricating oil that uses in the auxiliary piping, online detection is calibrated to the lubricating oil water cut, can accurately measure low water content in the lubricating oil.
Description of drawings
Fig. 1 is the structural representation of the inventive method.
1-threeway among the figure, 2-operation valve, 3-operation valve, 4-threeway, 5-operation valve, 6-capacitance type sensor measuring system, 7-standard oil sample storage tank, 8-pump, 9-operation valve, 10-threeway.
Embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
Its principle of work is following: lubricating oil is through the main pipeline oil supply that supplies at ordinary times; When need are measured the lubricating oil water cut; Open the by- pass valve control 3 and 9 of the subsidiary conduit that capacitance type sensor is housed, close the main pipeline control valve door 2 that supplies simultaneously, flow of lubricant can be measured the lubricating oil water cut through measuring subsidiary conduit.When need are calibrated, open the main pipeline control valve door 2 that supplies, close simultaneously and measure with subsidiary conduit by-pass valve control 3; Open on the pipeline oil well pump 8 lubricating oil on the pipeline of finding time, close again and measure, open subsidiary conduit by-pass valve control 5 of another placement standard oil sample this moment with subsidiary conduit by-pass valve control 9; Through oil well pump 8 with storage tank 7 in the standard oil sample import to measure subsidiary conduit, the capacitance type sensor medium is the standard oil sample, measure this moment electric capacity with calculate water cut; The value of this value and standard oil sample is demarcated; Oil well pump 8 reverse pressures push back standard oil sample storage tank 7 with the standard oil sample, and closing control valve 5 is accomplished proof work.
This calibrating installation is simple in structure, and the standard oil sample can be changed flexibly, and is easy to use.
Claims (2)
1. can accurately implement Calibration Method for one kind, it is characterized in that lubricating oil water cut on-line measuring device:
In the lubricant oil feeding pipe road and connect two auxiliary pipings, capacitance type sensor wherein is set as measuring lubricating oil water cut usefulness in the oil supply pipe on the subsidiary conduit, and places the standard oil sample of the lubricating oil that uses in another subsidiary conduit so that calibrate usefulness.
2. a kind of can using so that calibrate according to claim 1 accurately to the storage tank of the standard oil sample of the placement lubricating oil that uses is arranged in the lubricating oil water cut on-line measuring device enforcement Calibration Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102658863A CN102749365A (en) | 2012-07-27 | 2012-07-27 | Calibration method in on-line detection for moisture content of lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102658863A CN102749365A (en) | 2012-07-27 | 2012-07-27 | Calibration method in on-line detection for moisture content of lubricating oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102749365A true CN102749365A (en) | 2012-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012102658863A Pending CN102749365A (en) | 2012-07-27 | 2012-07-27 | Calibration method in on-line detection for moisture content of lubricating oil |
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| CN (1) | CN102749365A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333222A (en) * | 2017-01-20 | 2018-07-27 | 舍弗勒技术股份两合公司 | Workpiece and lubricant water content monitoring method and system thereof, and determining method and device |
| CN110567836A (en) * | 2019-08-06 | 2019-12-13 | 河南中烟工业有限责任公司 | method and system for rapidly checking and determining tobacco shred online moisture meter |
| CN113884543A (en) * | 2021-09-27 | 2022-01-04 | 西安浩宇腾飞电子科技有限公司 | Crude oil water content analyzer and analysis method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02226059A (en) * | 1989-02-27 | 1990-09-07 | New Cosmos Electric Corp | Calibration of reading of dissolved gas of display means for measuring apparatus for concentration |
| CN1195401A (en) * | 1995-09-07 | 1998-10-07 | 微动公司 | Viscosimeter calibration system and method of operating same |
| CN101907594A (en) * | 2010-06-11 | 2010-12-08 | 中国石油天然气股份有限公司 | Wellhead crude oil water content on-line measuring device |
| CN202693512U (en) * | 2012-02-28 | 2013-01-23 | 中国计量学院 | Lubrication oil water content online detection calibrating device |
-
2012
- 2012-07-27 CN CN2012102658863A patent/CN102749365A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02226059A (en) * | 1989-02-27 | 1990-09-07 | New Cosmos Electric Corp | Calibration of reading of dissolved gas of display means for measuring apparatus for concentration |
| CN1195401A (en) * | 1995-09-07 | 1998-10-07 | 微动公司 | Viscosimeter calibration system and method of operating same |
| CN101907594A (en) * | 2010-06-11 | 2010-12-08 | 中国石油天然气股份有限公司 | Wellhead crude oil water content on-line measuring device |
| CN202693512U (en) * | 2012-02-28 | 2013-01-23 | 中国计量学院 | Lubrication oil water content online detection calibrating device |
Non-Patent Citations (1)
| Title |
|---|
| 陈卫民: "油品含水率在线测量系统的研究", 《中国优秀博硕士学位论文全文数据库（硕士）工程科技II辑》, no. 03, 15 September 2004 (2004-09-15), pages 71 - 73 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333222A (en) * | 2017-01-20 | 2018-07-27 | 舍弗勒技术股份两合公司 | Workpiece and lubricant water content monitoring method and system thereof, and determining method and device |
| CN110567836A (en) * | 2019-08-06 | 2019-12-13 | 河南中烟工业有限责任公司 | method and system for rapidly checking and determining tobacco shred online moisture meter |
| CN110567836B (en) * | 2019-08-06 | 2022-07-26 | 河南中烟工业有限责任公司 | Method and system for rapidly checking and determining tobacco shred online moisture meter |
| CN113884543A (en) * | 2021-09-27 | 2022-01-04 | 西安浩宇腾飞电子科技有限公司 | Crude oil water content analyzer and analysis method |
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Application publication date: 20121024 |