CN102147404B - Online monitoring method and device of pollution degree of lubricant - Google Patents
Online monitoring method and device of pollution degree of lubricant Download PDFInfo
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- CN102147404B CN102147404B CN201010613023.1A CN201010613023A CN102147404B CN 102147404 B CN102147404 B CN 102147404B CN 201010613023 A CN201010613023 A CN 201010613023A CN 102147404 B CN102147404 B CN 102147404B
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Abstract
The invention discloses an online monitoring device of pollution degree of lubricant. The online monitoring device of pollution degree of lubricant mainly comprises an oil inlet, a cylinder body of a composite piston cylinder and a data collecting, processing and controlling system, wherein detecting pistons respectively provided with a pollutant input port the particle size of which is 15 or 5 Mum are arranged in the cylinder body; each piston is provided with a piston rod; three pistons and the piston rods are nested with each other; an oil channel is arranged on the right end surface of the internal piston; a displacement sensor is arranged at the key position of each piston rod; an oil outlet is arranged at the right end of the cylinder body of the composite piston cylinder; pressure sensors are arranged at the oil inlet and the oil outlet; electrical connectors of the displacement sensors and the pressure sensors are respectively connected to a terminal plate of the data collecting and processing device; and the data collecting, processing and controlling system can detect the result online in real time and output the pollution degree of the lubricant by the standard form of particle size of 5 Mum and 15 Mum corresponding to the ISO4406 standard. The online monitoring device has a simple structure, is not influenced by the lubricant performances and the operating parameters of the lubricant in the detecting process, has accurate and reliable detection result, and reduces the influence of personal factors on the system.
Description
Technical field:
The present invention relates to a kind of dustiness on-Line Monitor Device of lubricating oil, relate to lubricating oil and pollute on-line monitoring field.
Background technology:
The operating condition that lubricating oil is good, can provide important guarantee for the safe operation of equipment, because equipment operating condition is extremely complicated, internal and external factor all can exert an influence and cause early stage hidden trouble of equipment system and equipment at any time, as the extraneous or inner water producing with pollutant is assembled in a short time or increase suddenly; Gear, the premature wear fault of bearing; These can not monitor by conventional periodic inspection, and lubricated monitoring system can be to lubricated and equipment operating condition Real-Time Monitoring and analysis, for equipment maintenance provides reliable foundation online.Therefore, the operating mode of real time on-line monitoring lubricating system and wear condition, can find initial failure sign in time, takes appropriate measures to prevent the generation of major accident.This is also " preventive maintenance " or " diagnostic monitoring " measure of advocating in the world at present.At present, to the monitoring of hydraulic lubricant oil, be mainly to come fluid status monitoring by regular sampling analysis, yet examining report have larger hysteresis quality, can not reflect actual operating mode.
Along with the increase of industry member to monitoring and diagnosis technical need, analysis to the domestic and international existing lubricant pollution degree detection technique of part, existing oil contamination analysis detection method and technology mainly contain flash spotting, electrical measuring method, analytical comparison and alluvial method, they have following Some features: detect principle, method is various, equipment is complicated, cost is high, and assay method is loaded down with trivial details.
Publication number CN101539565A " a kind of oil pollution monitoring device of hydraulic system " and publication number CN101533003A " device for monitoring oil contamination " disclose a kind of device for monitoring oil contamination, in import and the outlet of filtrator, are separately installed with pressure transducer; The output terminal of this pressure transducer is connected with two interfaces of microcontroller respectively.This invention is embedded in hydraulic system, can be in the course of work of hydraulic system on-line monitoring go out the pollution level of fluid, application microprocessor to oil liquid pressure signal gather, storage and signal process, and realize the functions such as demonstration, storage, printing and wireless transmission, the size that the shortcoming of this device is to detect dustiness relies on the filtrator that it uses, and causes sensing range limited; Processing and installation are inconvenient, and manufacturing cost is high.
Summary of the invention:
The object of this invention is to provide a kind of lubricant pollution degree monitoring device, this device can on-line monitoring the pollution level of fluid, the deficiency such as overcome that existing device for monitoring oil contamination equipment is complicated, cost is high and assay method is loaded down with trivial details.
The technical solution adopted for the present invention to solve the technical problems is: the form that adopts composite piston cylinder, lubricating oil to be detected is flowed to the oil-in of this invention by certain pressure, enter in the left side cavity volume of piston cylinder, by the separation of 15 μ m pollutant input ports, particle diameter is greater than 15 μ m pollutants and is isolated in left chamber, is less than 15 μ m pollutants smoothly by entering 5 μ m pollutant monitoring piston left sides; In like manner particle diameter is greater than 5 μ m pollutants and is isolated in this chamber, is less than 5 μ m pollutants smoothly by entering in the 5 left chambeies of μ m pollutant monitoring piston; According to the flow that enters lubricating oil in each cavity volume, promote corresponding piston rod and stretch out corresponding displacement, by being arranged on the displacement transducer of each piston rod key aspect, detect each displacement, compare with process experiment building database, can draw corresponding oil contamination value.
The invention has the beneficial effects as follows, adopt gap (grain size 5 μ ms, the 15 μ ms corresponding with the ISO4406 standard) form in piston and hole, according to gap, be blocked and cause that piston stretches out the relation that displacement is directly proportional to dustiness, detect thus the class of pollution of fluid, simple in structure.Utilize experiment building database, can make different types of lubricating oil in the testing process of this invention, not be subject to the impact of fluid performance, test result is more reliable; This invention utilization arranges the mode of pressure transducer at oil-in and oil-out, the motion state that can show in real time fluid in testing process, by certain control strategy, database under corresponding experiment parameter condition is rationally provided, the impact of the operational factor of fluid in testing process is reduced, improve detection accuracy; At the key position of each piston rod, corresponding displacement transducer is installed, pass through data acquisition process, the class of pollution that can on-line monitoring goes out fluid in system work process, realizes the functions such as demonstration, storage, printing, reduces the impact of human factor on testing result.
accompanying drawing explanation:
Fig. 1 is structural representation of the present invention.
In figure 1---oil-in, 2---the cylinder body of composite piston cylinder, 3---be greater than 15 μ m pollutant monitoring pistons, 4---15 μ m pollutant monitoring pistons, 5---5 μ m pollutant monitoring pistons, 6---5 μ m pollutant monitoring piston rods, 7---15 μ m pollutant monitoring piston rods, 8---be greater than 15 μ m pollutant monitoring piston rods, 9---displacement transducer, 10---data acquisition processing device, 11---fuel-displaced pressure transducer, 12---oil-out, 13, 14---fluid path, 15---5 μ m pollutant input ports, 16---15 μ m pollutant input ports, 17---input pressure sensor.
embodiment:
Below in conjunction with embodiment, further illustrate the present invention.
Embodiment as shown in Figure 1, the present invention mainly comprises: oil-in 1, the cylinder body 2 of composite piston cylinder, be provided with the detection piston 3 of 15 μ m pollutant input ports 16, be provided with the detection piston 4 of 5 μ m pollutant input ports 15, detect piston 5, 5 μ m pollutant monitoring piston rods 6, 15 μ m pollutant monitoring piston rods 7, be greater than 15 μ m pollutant monitoring piston rods 8, three kinds of pistons and piston rod are mutually nested, at piston 3, fluid path 13 is offered in 4 right side, 14, the key position of each piston rod arranges displacement transducer, cylinder body right-hand member at composite piston cylinder sets out hydraulic fluid port 12, oil inlet and outlet setting pressure sensor 11, 17, the electrical connector of displacement and pressure transducer is connected on the terminal strip of data acquisition processing device 10.
This invention is in parallel with lubricating oil system to be detected, the lubricating oil with certain pressure is transported in the left cavity of composite piston cylinder 2 by oil-in 1, under the effect of oil pressure, the pollutant promotion detection piston 3 that particle diameter is greater than 15 μ m moves to right, and by detecting the displacement transducer output data of piston rod 8, enters data acquisition processing device 10; The pollutant that particle diameter is less than 15 μ m enters the left chamber of detecting piston 3 by 15 μ m pollutant input ports 16, under the effect of oil pressure, the pollutant promotion detection piston 4 that particle diameter is greater than 5 μ m moves to right, and by detecting the displacement transducer output data of piston rod 7, enters data acquisition processing device 10; In like manner, under the effect of oil pressure, the pollutant promotion detection piston 5 that particle diameter is less than 5 μ m moves to right, and by detecting the displacement transducer output data of piston rod 6, enters data acquisition processing device 10; Bottom, right side at the pollutant monitoring piston 4 of 5 μ m and the detection piston 5 of inside thereof arranges fluid path 13,14, is convenient to piston-retraction action; Utilization arranges the mode of pressure transducer 17,11 at oil-in 1 and oil-out 12, the motion state that can show in real time fluid in testing process, by certain control strategy, data under the experiment parameter condition of reasonable correspondence are provided, set up the displacement relation database of particle diameter and each piston rod, can draw corresponding oil contamination value.
The dustiness on-Line Monitor Device of a kind of lubricating oil provided by the invention, can make testing result with the class of pollution of the canonical form output fluid of ISO4406 standard corresponding grain size 5 μ m, 15 μ m, simple in structure.The motion state that can show in real time fluid in testing process, by certain control strategy, database under corresponding experiment parameter condition is rationally provided, can make different types of lubricating oil in the testing process of this invention, not be subject to the impact of the operational factor of fluid in fluid performance, testing process, improve detection accuracy; By data acquisition process, the class of pollution that can on-line monitoring goes out fluid in system work process, realizes the functions such as demonstration, storage, printing, reduces the impact of human factor on testing result.
Claims (2)
1. the dustiness on-Line Monitor Device of a lubricating oil, mainly by oil-in, the cylinder body of composite piston cylinder, the nested detection piston that is provided with 15 μ m pollutant input ports successively from outside to inside in described cylinder body, be provided with the detection piston of 5 μ m pollutant input ports and detect piston, each piston is provided with piston rod, at the detection piston that is provided with 15 μ m pollutant input ports, fluid path is offered in the right side that is provided with the detection piston of 5 μ m pollutant input ports, on each piston rod, displacement transducer is set, and data acquisition, disposal system and composition of the control system, it is characterized in that: the cylinder body right-hand member at composite piston cylinder sets out hydraulic fluid port, oil inlet and outlet setting pressure sensor, the electrical connector of displacement and pressure transducer is connected on the terminal strip of data acquisition processing device.
2. a kind of dustiness on-Line Monitor Device of lubricating oil according to claim 1, it is characterized in that being provided with in the cylinder body of described composite piston cylinder 15 μ m pollutant input ports detection piston rod, be provided with the detection piston rod of 5 μ m pollutant input ports and detect piston rod, three kinds of described piston rods are mutually nested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010613023.1A CN102147404B (en) | 2010-12-27 | 2010-12-27 | Online monitoring method and device of pollution degree of lubricant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010613023.1A CN102147404B (en) | 2010-12-27 | 2010-12-27 | Online monitoring method and device of pollution degree of lubricant |
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| Publication Number | Publication Date |
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| CN102147404A CN102147404A (en) | 2011-08-10 |
| CN102147404B true CN102147404B (en) | 2014-04-09 |
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| CN201010613023.1A Expired - Fee Related CN102147404B (en) | 2010-12-27 | 2010-12-27 | Online monitoring method and device of pollution degree of lubricant |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535477B (en) * | 2014-12-23 | 2017-03-15 | 重庆工商大学 | New contamination level of oil liquid on-Line Monitor Device |
| CN105158114B (en) * | 2015-10-22 | 2018-03-20 | 廊坊立邦涂料有限公司 | The evaluation method that ground chain lubricant in painting dressing automobiles scene pollutes to vehicle body water paint |
| CN105445193B (en) * | 2015-12-17 | 2018-09-14 | 华南理工大学 | A kind of reflective oil liquid monitoring probe |
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| JP2004053537A (en) * | 2002-07-24 | 2004-02-19 | Nitto Kogyo Co Ltd | Oil contamination degree inspection system, oil contamination inspection test paper and oil contamination measuring device |
| CN1877323A (en) * | 2006-06-27 | 2006-12-13 | 燕山大学 | Oil liquid pollution on-line monitoring device |
| US7241621B2 (en) * | 2001-11-30 | 2007-07-10 | Exxonmobil Research And Engineering Company | Method for determining residual fuel and insolubles contamination in used marine engine lubricants using UV-visible spectroscopy and chemometrics |
| CN201034909Y (en) * | 2007-01-24 | 2008-03-12 | 贾瑞清 | On-line oil-liquid polluting automatic detection device |
| CN101539565A (en) * | 2009-04-28 | 2009-09-23 | 西安建筑科技大学 | Oil pollution monitoring device of hydraulic system |
| CN202041527U (en) * | 2010-12-27 | 2011-11-16 | 重庆工商大学 | Online monitoring device for pollution degree of lubricating oil |
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2010
- 2010-12-27 CN CN201010613023.1A patent/CN102147404B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7241621B2 (en) * | 2001-11-30 | 2007-07-10 | Exxonmobil Research And Engineering Company | Method for determining residual fuel and insolubles contamination in used marine engine lubricants using UV-visible spectroscopy and chemometrics |
| JP2004053537A (en) * | 2002-07-24 | 2004-02-19 | Nitto Kogyo Co Ltd | Oil contamination degree inspection system, oil contamination inspection test paper and oil contamination measuring device |
| CN1877323A (en) * | 2006-06-27 | 2006-12-13 | 燕山大学 | Oil liquid pollution on-line monitoring device |
| CN201034909Y (en) * | 2007-01-24 | 2008-03-12 | 贾瑞清 | On-line oil-liquid polluting automatic detection device |
| CN101539565A (en) * | 2009-04-28 | 2009-09-23 | 西安建筑科技大学 | Oil pollution monitoring device of hydraulic system |
| CN202041527U (en) * | 2010-12-27 | 2011-11-16 | 重庆工商大学 | Online monitoring device for pollution degree of lubricating oil |
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| 刘混举.煤矿现场油液污染度的测定.《中国设备工程》.1997,(第7期), |
| 张贤明等.油液的污染度评价及其测试技术.《汽轮机技术》.2007,第49卷(第1期), |
| 油液的污染度评价及其测试技术;张贤明等;《汽轮机技术》;20070228;第49卷(第1期);60-62，65 * |
| 煤矿现场油液污染度的测定;刘混举;《中国设备工程》;19970731(第7期);24-26 * |
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Application publication date: 20110810 Assignee: Science and Technology Development General Company of Chongqing Technology and Business University Assignor: Chongqing Technology and Business University Contract record no.: 2016500000012 Denomination of invention: Online monitoring device for pollution degree of lubricating oil Granted publication date: 20140409 License type: Common License Record date: 20160608 |
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