CN102147404A - Online monitoring method and device of pollution degree of lubricant - Google Patents
Online monitoring method and device of pollution degree of lubricant Download PDFInfo
- Publication number
- CN102147404A CN102147404A CN2010106130231A CN201010613023A CN102147404A CN 102147404 A CN102147404 A CN 102147404A CN 2010106130231 A CN2010106130231 A CN 2010106130231A CN 201010613023 A CN201010613023 A CN 201010613023A CN 102147404 A CN102147404 A CN 102147404A
- Authority
- CN
- China
- Prior art keywords
- piston
- lubricant
- oil
- cylinder body
- piston rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an online monitoring method and 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 monitoring method and apparatus of lubricating oil, relate to lubricating oil and pollute the on-line monitoring field.
Background technology:
The operating condition that lubricating oil is good, important assurance can be provided for the safe operation of equipment, because the equipment operation operating mode is extremely complicated, internal and external factor all can exert an influence and causes early stage hidden trouble of equipment at any time system and equipment, as the extraneous or inner water that produces 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 online lubricated monitoring system can be to lubricated and monitoring in real time of equipment operation operating mode and analysis, for equipment maintenance provides reliable foundation.Therefore, the operating mode of real time on-line monitoring lubricating system and wear condition can in time be found the initial failure sign, take appropriate measures to prevent the generation of major accident.This also is " preventive maintenance " or " diagnostic monitoring " measure of advocating in the world at present.At present, mainly be to come the fluid status monitoring to the monitoring of hydraulic lubricant oil, yet examining report have bigger hysteresis quality by regular sampling analysis, can not reflect actual operating mode.
Along with the increase of industry member to the monitoring and diagnosis technical need, to the part analysis of existing lubricant dustiness detection technique both at home and abroad, existing oil contamination analyzing detecting method and technology mainly contain flash spotting, electrical measuring method, analytical comparison and alluvial method, they have following characteristics: detect principle, method is various, the equipment complexity, the cost height, assay method is loaded down with trivial details.
Publication number CN 101539565A " a kind of oil pollution monitoring device of hydraulic system " and publication number CN 101533003A " device for monitoring oil contamination " disclose a kind of device for monitoring oil contamination, are separately installed with pressure transducer in the import and the outlet of filtrator; The output terminal of this pressure transducer is connected with two interfaces of microcontroller respectively.This invention is embedded in the hydraulic system, can be in the course of work of hydraulic system on-line monitoring go out the pollution level of fluid, use microprocessor to the oil liquid pressure signal gather, storage and signal Processing, and functions such as realization demonstration, storage, printing and wireless transmission, the shortcoming of this device is that the size that detects dustiness relies on its employed filtrator, causes sensing range limited; Processing and installation are inconvenient, the manufacturing cost height.
Summary of the invention:
The purpose of this invention is to provide a kind of lubricant pollution degree monitoring method and device, this device can on-line monitoring the pollution level of fluid, overcome deficiencies such as existing device for monitoring oil contamination equipment complexity, cost height and assay method be loaded down with trivial details.
The technical solution adopted for the present invention to solve the technical problems is: the form that adopts the 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, separation by 15 μ m pollutant input ports, particle diameter is isolated in the left chamber greater than 15 μ m pollutants, then detects the piston left side by entering 5 μ m pollutants smoothly less than 15 μ m pollutants; In like manner particle diameter is isolated in this chamber greater than 5 μ m pollutants, then detects in the chamber, a piston left side by entering 5 μ m pollutants smoothly less than 5 μ m pollutants; Stretch out corresponding displacement according to entering flow rate of lubricating oil promotion corresponding piston bar in each cavity volume, detect each displacement by the displacement transducer that is arranged on each piston rod place, set up database with the process experiment and compare, can draw corresponding oil contamination value.
The invention has the beneficial effects as follows, adopt gap (with the corresponding grain size 5 μ m of ISO4406 standard, the 15 μ m) form in piston and hole, being blocked according to the gap causes that piston stretches out the relation that displacement is directly proportional with dustiness, detects the class of pollution of fluid thus, simple in structure.Utilize experiment to set up database, can make different types of lubricating oil not be subjected to the fluid Effect on Performance in the testing process of this invention, test result is more reliable; This invention utilization is provided with the mode of pressure transducer at oil-in and oil-out, the motion state that can show fluid in the testing process in real time, by certain control strategy, database under the corresponding experiment parameter condition rationally is provided, the influence of the operational factor of fluid in the 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, can be in system work process on-line monitoring go out the class of pollution of fluid, realize functions such as demonstration, storage, printing, reduce the influence of human factor to testing result.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Among the figure 1---oil-in, 2---the cylinder body of composite piston cylinder, 3---detect piston greater than 15 μ m pollutants, 4---15 μ m pollutants detect piston, 5---5 μ m pollutants detect piston, 6---5 μ m pollutants detect piston rod, and 7---15 μ m pollutants detect piston rod, and 8---detect piston rod greater than 15 μ m pollutants, 9---displacement transducer, 10---data acquisition processing device, 11---fuel-displaced pressure transducer, 12---oil-out, 13,14---the fluid path, 15---5 μ m pollutant input ports, 16---15 μ m pollutant input ports, 17---the input pressure sensor.
Embodiment:
Below in conjunction with embodiment, further specify 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 pollutants detect piston rod 6,15 μ m pollutants detect piston rod 7, detect piston rod 8 greater than 15 μ m pollutants, 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 is provided with displacement transducer, sets out hydraulic fluid port 12 at the cylinder body right-hand member of composite piston cylinder, 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, 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, particle diameter moves to right greater than the pollutant promotion detection piston 3 of 15 μ m, enters data acquisition processing device 10 by the displacement transducer output data that detects piston rod 8; Particle diameter enters the left chamber of detecting piston 3 less than the pollutant of 15 μ m by 15 μ m pollutant input ports 16, under the effect of oil pressure, particle diameter moves to right greater than the pollutant promotion detection piston 4 of 5 μ m, enters data acquisition processing device 10 by the displacement transducer output data that detects piston rod 7; In like manner, under the effect of oil pressure, particle diameter moves to right less than the pollutant promotion detection piston 5 of 5 μ m, enters data acquisition processing device 10 by the displacement transducer output data that detects piston rod 6; The bottom, right side of detecting piston 4 and inner detection piston 5 thereof at the pollutant of 5 μ m is provided with fluid path 13,14, is convenient to the piston-retraction action; Utilization is provided with the mode of pressure transducer 17,11 at oil-in 1 and oil-out 12, the motion state that can show fluid in the testing process in real time, 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 monitoring method and apparatus of a kind of lubricating oil provided by the invention can make the class of pollution of testing result with the canonical form output fluid of the corresponding grain size 5 μ m of ISO4406 standard, 15 μ m, and is simple in structure.The motion state that can show fluid in the testing process in real time, by certain control strategy, database under the corresponding experiment parameter condition rationally is provided, can make different types of lubricating oil in the testing process of this invention, not be subjected to the influence of the operational factor of fluid in fluid performance, the testing process, improve detection accuracy; By data acquisition process, can be in system work process on-line monitoring go out the class of pollution of fluid, realize functions such as demonstration, storage, printing, reduce the influence of human factor to testing result.
Claims (3)
1. the dustiness on-line monitoring method and apparatus of a lubricating oil, mainly by oil-in, the cylinder body of composite piston cylinder, be provided with 15 μ m in the cylinder body, the detection piston and the piston rod of 5 μ m pollutant input ports, offer the fluid path in the right side of inner carrier, the key position of each piston rod is provided with displacement transducer, and data acquisition, disposal system and control system are formed, it is characterized in that: the cylinder body right-hand member at the 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. according to the dustiness on-line monitoring method and apparatus of the described a kind of lubricating oil of claim 1, it is characterized in that being provided with in the cylinder body of described composite piston cylinder the detection piston of 15 μ m, 5 μ m pollutant input ports, described each piston is provided with piston rod, and three kinds of pistons and piston rod are mutually nested.
3. according to the dustiness on-line monitoring method and apparatus of the described a kind of lubricating oil of claim 1, it is characterized in that 5 μ m pollutants detection piston and the inner bottom, piston right side of detecting in the 15 μ m pistons is provided with the fluid path, be convenient to the withdrawal of piston.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102147404A true CN102147404A (en) | 2011-08-10 |
| CN102147404B CN102147404B (en) | 2014-04-09 |
Family
ID=44421776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010613023.1A Expired - Fee Related CN102147404B (en) | 2010-12-27 | 2010-12-27 | Online monitoring method and device of pollution degree of lubricant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102147404B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535477A (en) * | 2014-12-23 | 2015-04-22 | 重庆工商大学 | Novel oil pollution degree online monitoring device |
| CN105158114A (en) * | 2015-10-22 | 2015-12-16 | 廊坊立邦涂料有限公司 | Method for evaluating pollution of automobile-coating-site ground chain lubricating oil to automobile body water-based paint |
| CN105445193A (en) * | 2015-12-17 | 2016-03-30 | 华南理工大学 | Reflection type oil fluid monitoring probe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
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 |
Non-Patent Citations (2)
| Title |
|---|
| 刘混举: "煤矿现场油液污染度的测定", 《中国设备工程》, no. 7, 31 July 1997 (1997-07-31) * |
| 张贤明等: "油液的污染度评价及其测试技术", 《汽轮机技术》, vol. 49, no. 1, 28 February 2007 (2007-02-28) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535477A (en) * | 2014-12-23 | 2015-04-22 | 重庆工商大学 | Novel oil pollution degree online monitoring device |
| CN104535477B (en) * | 2014-12-23 | 2017-03-15 | 重庆工商大学 | New contamination level of oil liquid on-Line Monitor Device |
| CN105158114A (en) * | 2015-10-22 | 2015-12-16 | 廊坊立邦涂料有限公司 | Method for evaluating pollution of automobile-coating-site ground chain lubricating oil to automobile body water-based paint |
| 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 |
| CN105445193A (en) * | 2015-12-17 | 2016-03-30 | 华南理工大学 | Reflection type oil fluid monitoring probe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102147404B (en) | 2014-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201034909Y (en) | On-line oil-liquid polluting automatic detection device | |
| CN106194900B (en) | A kind of hydraulic reciprocating sealing dynamic property detection means and design | |
| CN101799359B (en) | Failure monitoring and predicting method and system of power equipment | |
| CN104006034B (en) | Hydraulic servo variable-load loading test bench | |
| CN205103247U (en) | Real triaxial rock core holder | |
| CN100376886C (en) | Axial plunger pump piston shoe auxiliary lubrication characteristic test device | |
| CN201837574U (en) | Wind power generation on-line oil analysis device based on magnetic conductivity | |
| CN104374662B (en) | Experimental machine for evaluating friction and wear properties in hydraulic valve core and valve body | |
| CN201547476U (en) | Lubrication system monitoring and diagnosis device | |
| CN102175579B (en) | Device for monitoring pollution degree of lubricating oil particles according to vibration characteristic | |
| CN101798957A (en) | Failure diagnosis method of power equipment | |
| CN1815176A (en) | Piezoelectric sensor for on-line monitoring liquid viscosity and grain amount and measuring method | |
| CN101624908A (en) | Method for detecting working condition of pumping well | |
| CN202041527U (en) | Online monitoring device for pollution degree of lubricating oil | |
| CN100559181C (en) | The online test method of chain cloth performance and device | |
| CN102147404B (en) | Online monitoring method and device of pollution degree of lubricant | |
| CN112666339A (en) | Online analysis system and method for lubricating oil of unit oil station | |
| CN102830085A (en) | Detection device for engine oil performance of engine | |
| CN102628826A (en) | Oil concentration rapid detection apparatus for oily sewage | |
| CN101793892A (en) | On-line detection method of oil contamination in hydraulic system | |
| CN2901296Y (en) | Oil-liquid elasticity modulus detector based on volume elasticity modules definition | |
| CN201697739U (en) | Guide rail type detector for measuring screw bolt pretightening force | |
| CN106442245A (en) | Initiative detection device for oil pollution degree | |
| CN105242027A (en) | True triaxial core holder | |
| CN203490233U (en) | Oil liquid pollution inspection system based on computer control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
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 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20181227 |