CN101806692A - On-line monitoring plant for ferromagnetic grains in engine oil - Google Patents
On-line monitoring plant for ferromagnetic grains in engine oil Download PDFInfo
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- CN101806692A CN101806692A CN 201010125666 CN201010125666A CN101806692A CN 101806692 A CN101806692 A CN 101806692A CN 201010125666 CN201010125666 CN 201010125666 CN 201010125666 A CN201010125666 A CN 201010125666A CN 101806692 A CN101806692 A CN 101806692A
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Abstract
The invention discloses an on-line monitoring plant for ferromagnetic grains in engine oil, which is characterized by comprising a sensor unit, an electronic storage and control unit and a display unit, wherein the sensor unit is installed in the oil duct to be tested and adapts to the diameter of the oil duct to be tested; the electronic storage and control unit and the display unit are installed outside the oil duct to be tested; the sensor unit is connected with the electronic storage and control unit through a common cable; the electronic storage and control unit is connected with the display unit through an RS232 or RS422/485 series interface in common industry standard; and the display unit displays the detection values of the ferromagnetic grains in the engine oil in the on-line monitored oil duct. The plant can work in the environment of extreme temperature and vibrations, has the advantages of simple structure, convenient operation and high monitoring and response speed, and can realize prewarning of equipment failures in time. The plant is beneficial to determining the residual life of lubricating oil, optimizing the oil change period and reducing the possibility of accidents. The plant has significant economic value and is of great importance for environmental protection.
Description
Technical field
The present invention relates to a kind of on-Line Monitor Device of Wear Condition of Machinery; Particularly relate to a kind of on-line monitoring plant for ferromagnetic grains in engine oil, the invention belongs to plant equipment abrasive particle on-Line Monitor Device technical field.
Background technology
Wearing and tearing are one of principal elements of component of machine inefficacy, and in the failure mode of machine parts, the wear out failure form accounts for more than 70%.The state of abrasive particle, the bulk information that is implying the plant equipment running status can in time reflect the wearing and tearing current situation and development trend of equipment, simultaneously, also is the diagnostic device fault, carries out predictive maintenance, equipment is improved the important evidence of design.
The detection of abrasive particle generally is divided into two classes in the plant equipment fluid: off-line and online detection.Offline inspection is as spectral analysis, analyzing iron spectrum, scanning electron microscope, power spectrum etc.; Online detection has: online abrasive particle counter, abrasive particle analyzer etc., as: the hyperchannel abrasive particle counter of U.S. HIAC/ROYCO company, can survey the abrasive particle of 1～100 μ m, the another kind of product of the said firm---laser scanning sensor can be surveyed the abrasive particle of 0.25～25 μ m size; A kind of model that Canada GasTops company produces is the big abrasive particle sensor of Metal SCAN; The Tskuso Sato of Japan and the people such as M.Linzer of the U.S. are developing the technology that another kind utilizes laser detection ferrous metal abrasive particle.China Xi'an Communications University also utilizes the online method that detects the ferrous metal abrasive particle of iron spectrum in development.
Traditional lubricating oil status monitoring is meant the breadboard physicochemical analysis technology of utilizing, the lubricating oil sample that machinery and equipment is being used is carried out analysis-by-synthesis, obtain the information of equipment lubrication and wear condition, and the development of predict device wear process in view of the above, in time find fault or trouble-saving generation.Online lubricating oil status monitoring, then be under the situation of the normal operation of equipment, by the physical-chemical parameters of online use lubricating oil is monitored in real time, particularly to the real-time monitoring of state of the abrasive grain, the operating mode of determining apparatus, the unusual parts and the intensity of anomaly of diagnostic device, thereby, the generation of major accident, maintenance and repair are targetedly avoided in realization.In addition, monitor in real time, can help to understand the abrasion mechanism of friction pair in the plant equipment, lubrication mechanism, the wear out failure type is determined lubricating oil residual life etc., so that determine rational break-in standard and oil draining period.At present, China still belongs to blank at " online ferromagnetism state of the abrasive grain and lubricating oil monitoring " instrument manufacture view, rare in the world with quasi-instrument be in still that volume is big, technical sophistication, range of application be little, expensive state.In addition, fluid on-line monitoring technique complexity, it is big to implement difficulty, at present, does not also obtain to use widely at industrial circle.
Summary of the invention
Technical matters to be solved by this invention is, overcomes the prior art defective, solves the technical barrier of plant equipment abrasive particle on-line monitoring, and a kind of oil circuit inner engine oil on-line monitoring plant for ferromagnetic grains is provided.
The technical solution adopted in the present invention is: a kind of on-line monitoring plant for ferromagnetic grains in engine oil, comprise, be installed in the oil circuit to be measured and the suitable sensor unit of oil circuit caliber to be measured, be installed in electronics storage and the control module and the display unit of oil circuit to be measured outside, described sensor unit interconnects with control module by common cable and the storage of described electronics, the storage of described electronics interconnects with described display unit with the RS232 or the RS422/485 series interfaces of control module by the industrial general standard, the detected value of described display unit demonstration on-line monitoring oil circuit inner engine oil ferromagnetic particle.
Described sensor unit comprises, a powerful permanent magnet, and an electromagnet and a travel switch are when being or or 1-1/4 at 3/8 o'clock at 3/4 o'clock with the suitable oil circuit caliber of described sensor unit.
Described electronics storage and control module, comprise, reset circuit, signal input circuit, single-chip microcomputer, warning circuit, display circuit, power module, serial communication modular and high-power adjustable voltage output module, described reset circuit is connected with described single-chip microcomputer, after described signal input circuit receives the original signal of described sensor, import described single-chip microcomputer, the output of described single-chip microcomputer is electrically connected with described warning circuit, display circuit, power module, serial communication modular and high-power adjustable voltage output module respectively.
What described display unit adopted is one of following three kinds of structures:
1) be installed in the combination of industrial display unit (IDU) and high performance personal computer in the firm cabinet, described industrial display unit (IDU) uses dull and stereotyped touch-screen, and color LCD shows, built-in computer monitoring software unit;
2) independent Pentium PC that operates under Windows 98 or the Windows XP operating system;
3) industrial DCS controller that receives, translates and show monitoring information by the RS485 interface able to programme.
The invention has the beneficial effects as follows: this device can be worked under extreme temperature and vibration environment, and is simple in structure, easy to use, and the monitoring response speed is fast, in time realizes the early warning of equipment failure; Help to determine the residual life of lubricating oil, optimize the drain period, the minimizing accident takes place; Not only have great economic worth, but also significant to environmental protection.
Description of drawings
Fig. 1 is an oil circuit inner engine oil on-line monitoring plant for ferromagnetic grains block scheme;
Fig. 2 is an oil circuit inner engine oil on-line monitoring plant for ferromagnetic grains synoptic diagram;
Fig. 3 is the block scheme of electronics storage and control unit circuit;
Fig. 4 is the main program flow chart of electronics storage and control unit circuit;
Fig. 5 is the interrupt routine process flow diagram of electronics storage and control unit circuit;
Fig. 6 is the interior ferromagnetic particle mass distribution curve of the oil circuit of monitoring.
Among the figure:
A: the plant equipment of setting needs the threshold line of overhaul
B: the threshold line that the plant equipment of setting is repaiied in needing
A1: the trend that the plant equipment of setting need be paid close attention to
B1: the trend of the general wearing and tearing of the plant equipment of setting
Embodiment
Below, with embodiment the present invention is described in further detail in conjunction with the accompanying drawings.
Fig. 1 is an oil circuit inner engine oil on-line monitoring plant for ferromagnetic grains block scheme; Fig. 2 is an oil circuit inner engine oil on-line monitoring plant for ferromagnetic grains synoptic diagram; As shown in Figure 1 and Figure 2, on-line monitoring plant for ferromagnetic grains in engine oil, comprise, be installed in the oil circuit to be measured and suitable sensor unit, the electronics storage that is installed in oil circuit to be measured outside and control module and the display unit of oil circuit caliber to be measured, sensor unit interconnects with control module by common cable and electronics storage, electronics storage interconnects with display unit with the RS232 or the RS422/485 series interfaces of control module by the industrial general standard, the detected value of display unit demonstration on-line monitoring oil circuit inner engine oil ferromagnetic particle.
The present invention adopts the mgnetic observations principle, and the ferromagnetism abrasive particle in the oil circuit is carried out the metering of real-time mass accumulation, and stores according to the time period of setting, and counts variation tendency by the electronics storage with control module.Fig. 6 is the interior ferromagnetic particle mass distribution curve of the oil circuit of monitoring; As shown in Figure 6, the plant equipment that is provided with needs the threshold line a of overhaul, the threshold line b that the plant equipment that is provided with is repaiied in needing, the trend a1 that the plant equipment that is provided with need be paid close attention to, the curve of E, F point-to-point transmission just, the trend b1 of the general wearing and tearing of the plant equipment of setting is when the ferromagnetism abrasive particle quality of accumulating in the plant equipment lubricating system oil circuit surpasses preset threshold, or when the too fast increase of sensitization time section mass accumulation, this device is reported to the police at once.This device is widely used in fields such as industry, traffic, navigation and aviation.
For example: the degree of injury of wearing terrains such as rolling bearing, engine piston cylinder, and between wearing terrain is discharged into ferromagnetic particle quality in the lubricating system oil circuit, have relevance consumingly.This device is by the semi-invariant of ferromagnetism abrasive particle in the monitoring oil circuit, any abnormal occurrence occurs, send preliminary warning, if when the semi-invariant of ferromagnetism abrasive particle arrives pre-set threshold in the oil circuit to the operator, this device sends an alerting signal, and indication has tangible wearing terrain damage to occur.Before warning, sensor is the semi-invariant of ferromagnetism abrasive particle in collecting oil circuit all the time, therefore, white space can not occur monitoring.The electronics storage of this device and the output signal of control module can reduce machine power rapidly or cut off equipment operation fully.This device can be worked under extreme temperature and vibration environment.This device can show in display unit, the gross mass of ferromagnetic particle in the oil circuit, the demonstration of the histogram form of ferromagnetic particle quality, the state parameter of this device, warning and alerting signal.
The critical component of this device is the on-line sensor unit in the lubricating system oil circuit.Sensor unit comprises, a powerful permanent magnet, and an electromagnet and a travel switch, sensor unit is directly installed in the oil circuit of equipment lubrication system, reduces being as the criterion with the pressure that does not cause oil circuit.The oil circuit caliber suitable with sensor unit has three kinds of oil circuit caliber sizes optional: promptly, 3/8 o'clock, the specified pipe diameter when 3/4 o'clock and 1-1/4.During the ferromagnetism abrasive particle, magnetic force will change in powerful permanent magnet is collected the oil circuit of equipment lubrication system.Utilize the size of the online detection magnetic force of electromagnet timesharing that the ferromagnetism abrasive particle in the oil circuit to be measured is sampled, adopt permanent magnet to collect the iron particle, magnetic force is strong.The only interior in short-term energising of electromagnet can not generated heat substantially.By accumulation progressively, to measure at times, measurement data accurately, reliably can not produce cumulative errors.Sensor is connected near the signal input circuit that is installed in electronics storage and the control module monitored equipment by common cable.
Fig. 3 is the block scheme of electronics storage and control unit circuit; As shown in Figure 3, electronics storage and control module configuration 12 or 24VDC power supply.Electronics storage and control module comprise reset circuit, signal input circuit, single-chip microcomputer, warning circuit, display circuit, power module, serial communication modular and high-power adjustable voltage output module, reset circuit is electrically connected with single-chip microcomputer, after the original signal of signal input circuit receiving sensor, the input single-chip microcomputer, the output of single-chip microcomputer is electrically connected with warning circuit, display circuit, power module, serial communication modular and high-power adjustable voltage output module respectively.Power module is the integrated circuit supply voltage of 3.3V and 5V with 12V or 24VDC Vehicular accumulator cell voltage transitions; Reset circuit provides reset function for single-chip microcomputer; Warning circuit provides beep and LED flash to show warning; Serial communication modular can realize that single-chip microcomputer communicates by letter with computer by serial; High-power adjustable voltage output module provides the linear adjustable voltage of 9～17V for solenoid valve; Display circuit is responsible for and will is recorded to such an extent that data, chart show; The electronics storage is electrically connected with display unit mutually with the RS232 or the RS422/485 series interfaces of control module by industrial standard, monitor by the ferromagnetic particle quality in the display unit lubricating system oil circuit, the present situation information and the warning and the warning message of display device wear data and this device, make operating personnel just pay close attention to developing perhaps imminent machinery and equipment operational failure.
Fig. 4 is the main program flow chart of electronics storage and control unit circuit; Fig. 5 is the interrupt routine process flow diagram of electronics storage and control unit circuit; As Fig. 4, shown in Figure 5, the electronics storage with the flow process of control module single chip circuit master routine is, when program begins, close interrupt routine earlier, after then electromagnet being cut off the power supply (0V) and delaying time 5 minutes, make the supply voltage of electromagnet begin to increase progressively with the 0.1V step-length from 9V, do you judge whether adhesive of electromagnet? if electromagnet is adhesive, record this moment, electromagnet supply voltage value and after the time was opened interrupt routine, otherwise the program of the electromagnet outage (0V) and the 5 minutes sections of delaying time is carried out in continuation; Electronics storage with the interrupt routine flow process of control module single chip circuit is, enter interrupt routine after, judging has the request of demonstration? when judging that there is the request of demonstration the outside, order single-chip microcomputer display circuit shows the working hours one voltage histogram of electromagnet; Does continuing to judge have the alarming value of reaching when judging that the outside does not show request? when judgement has the alarming value of reaching, drive buzzer, indicator light circuit work; When judgement does not reach alarming value, proceed to judge the zero clearing request of writing down? when judging that there is record zero clearing request in the external world, drive magnetic carries out zero clearing to record after continuing 5 minutes power (15V); When judging that the external world does not write down the zero clearing request, open interruption, interrupt returning.
Warning and alarm threshold value are controlled by programming in electronics storage and control module, and change according to the difference of monitored part of appliance.When sensor unit detects unusual ferromagnetism abrasive particle quality, will send a caution signal to operating personnel.The setting of alarm threshold value is the time that need detect in detail and keep in repair equipment downtime, for example, and one month, or a season, or half a year, 1 year etc.
Electronics storage and control module, to carrying out temperature compensation from the original signal of sensor, convert and being stored, make the good reproducibility of Monitoring Data, it is exported to pattern displaying unit the required data message about detected granular mass in the oil circuit of equipment lubrication system is provided.In case utilize the size of electromagnet timesharing on-line monitoring magnetic force to be detected, this information is just transmitted and is recorded in the storer of electronics storage and control module.Storer can guarantee still can preserve data under the situation of outage.Inquiry is controlled by display unit, can carry out time keeping to Monitoring Data successively, and the variation tendency of video data.During by display unit inquiry Monitoring Data, according to the rank of this device to the warning and the warning of the running status of machinery and equipment, data are carried out trend analysis after, definite system is carried out fault diagnosis and reparation.Software package and IBM-PC machine compatibility that this device, display unit uses, and require to move more than 98 or under the Windows XP operating system at Windows.According to different plant equipment, the state parameter of this device is different, and the input of state parameter also is open.
When watching the information of this device, that is, what display unit adopted can be one of following three kinds of structures:
1) be installed in the combination of industrial display unit (IDU) and high performance personal computer in the firm cabinet, industrial display unit (IDU) uses dull and stereotyped touch-screen, and color LCD shows, built-in computer monitoring software unit;
2) independent Pentium PC that operates under Windows 98 or the Windows XP operating system;
3) industrial DCS controller that receives, translates and show monitoring information by the RS485 interface able to programme.
The system of display unit installs, and the installation of typical this device software of multisensor can be finished in one or two working days by machinery and electronic technology personnel.Complete erecting tools can be used for multiple applied environment.Installation can be finished in minimum 8 hour stop time.Also can ask the on-site service personnel of high qualification that technical support is provided.
This apparatus structure is simple, and is easy to use, and response is fast, and price is low; Be used for the state-detection and the fault diagnosis of mechanical system, any abnormal phenomena occurs, system can tentatively warn to the operator, in case reach certain threshold value in advance, this device provides an alerting signal, and indication has tangible wearing terrain damage; The output signal that this device provides, also can be in device controller programmed process so that reduce machine power rapidly or cut off equipment operation fully; Can under extreme temperature and vibration environment, work; And, help to determine the residual life of lubricating oil, optimize the drain period, the minimizing accident takes place, and not only has great economic worth, and, significant to environmental protection.
It is worthy of note; protection scope of the present invention is not limited to above-mentioned instantiation mode, according to basic fundamental design of the present invention, as long as those of ordinary skills need not through creative work; the embodiment that can associate all belongs to protection scope of the present invention.
Claims (4)
1. on-line monitoring plant for ferromagnetic grains in engine oil, it is characterized in that, comprise, be installed in the oil circuit to be measured and the suitable sensor unit of oil circuit caliber to be measured, be installed in electronics storage and the control module and the display unit of oil circuit to be measured outside, described sensor unit interconnects with control module by common cable and the storage of described electronics, the storage of described electronics interconnects with described display unit with the RS232 or the RS422/485 series interfaces of control module by the industrial general standard, the detected value of described display unit demonstration on-line monitoring oil circuit inner engine oil ferromagnetic particle.
2. on-line monitoring plant for ferromagnetic grains in engine oil according to claim 1, it is characterized in that, described sensor unit, comprise, a powerful permanent magnet, an electromagnet and a travel switch are when being or or 1-1/4 at 3/8 o'clock at 3/4 o'clock with the suitable oil circuit caliber of described sensor unit.
3. on-line monitoring plant for ferromagnetic grains in engine oil according to claim 1, it is characterized in that, described electronics storage and control module, comprise, reset circuit, signal input circuit, single-chip microcomputer, warning circuit, display circuit, power module, serial communication modular and high-power adjustable voltage output module, described reset circuit is connected with described single-chip microcomputer, after described signal input circuit receives the original signal of described sensor, import described single-chip microcomputer, the output of described single-chip microcomputer is respectively with described warning circuit, display circuit, power module, serial communication modular and high-power adjustable voltage output module are electrically connected.
4. according to claim 1 or 2 or 3 described on-line monitoring plant for ferromagnetic grains in engine oil, it is characterized in that what described display unit adopted is one of following three kinds of structures:
1) be installed in the combination of industrial display unit (IDU) and high performance personal computer in the firm cabinet, described industrial display unit (IDU) uses dull and stereotyped touch-screen, and color LCD shows, built-in computer monitoring software unit;
2) independent Pentium PC that operates under Windows 98 or the Windows XP operating system;
3) industrial DCS controller that receives, translates and show monitoring information by the RS485 interface able to programme.
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| CN 201010125666 CN101806692B (en) | 2010-03-17 | 2010-03-17 | On-line monitoring plant for ferromagnetic grains in engine oil |
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| CN 201010125666 CN101806692B (en) | 2010-03-17 | 2010-03-17 | On-line monitoring plant for ferromagnetic grains in engine oil |
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| CN101806692A true CN101806692A (en) | 2010-08-18 |
| CN101806692B CN101806692B (en) | 2012-10-24 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279144A (en) * | 2011-04-06 | 2011-12-14 | 沈怡茹 | Oiliness online detecting device for lubricating oil |
| CN102853241A (en) * | 2012-05-31 | 2013-01-02 | 南京工业大学 | Slewing bearing wearing extent on-line measurement and lubricating grease automatic filling-up method |
| CN104596896A (en) * | 2013-10-31 | 2015-05-06 | 杨飞帆 | Direct-reading-type ferrograph operation system |
| CN105699265A (en) * | 2016-03-29 | 2016-06-22 | 北京至感传感器技术研究院有限公司 | Method and device for detecting ferromagnetic grains in liquid oil |
| CN108008453A (en) * | 2017-11-23 | 2018-05-08 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of turbine oil system metal filings on-line monitoring system |
| CN109142188A (en) * | 2018-09-12 | 2019-01-04 | 重庆宗申创新技术研究院有限公司 | A kind of oil pump filter screen life detecting device and detection method |
| CN109470605A (en) * | 2018-11-02 | 2019-03-15 | 大连海事大学 | A kind of inductance type oil liquid detection sensor |
| CN110926999A (en) * | 2019-12-12 | 2020-03-27 | 天津大学仁爱学院 | Machine oil ferromagnetic metal particle on-line measuring device |
| CN110954314A (en) * | 2019-12-18 | 2020-04-03 | 北京昊鹏智能技术有限公司 | Equipment wear prediction method and device |
| CN112709924A (en) * | 2020-12-28 | 2021-04-27 | 国家电投集团广西兴安风电有限公司 | Bearing lubricating grease control method and device and storage medium |
| CN113439011A (en) * | 2018-12-12 | 2021-09-24 | 比卡尔喷嘴责任有限公司 | Sander with system for controlling loading of abrasive material |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279144A (en) * | 2011-04-06 | 2011-12-14 | 沈怡茹 | Oiliness online detecting device for lubricating oil |
| CN102853241A (en) * | 2012-05-31 | 2013-01-02 | 南京工业大学 | Slewing bearing wearing extent on-line measurement and lubricating grease automatic filling-up method |
| CN102853241B (en) * | 2012-05-31 | 2015-08-19 | 南京工业大学 | A kind of pivoting support wear extent on-line checkingi and lubricating grease automatic filling method |
| CN104596896A (en) * | 2013-10-31 | 2015-05-06 | 杨飞帆 | Direct-reading-type ferrograph operation system |
| CN105699265A (en) * | 2016-03-29 | 2016-06-22 | 北京至感传感器技术研究院有限公司 | Method and device for detecting ferromagnetic grains in liquid oil |
| CN108008453A (en) * | 2017-11-23 | 2018-05-08 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of turbine oil system metal filings on-line monitoring system |
| CN109142188A (en) * | 2018-09-12 | 2019-01-04 | 重庆宗申创新技术研究院有限公司 | A kind of oil pump filter screen life detecting device and detection method |
| CN109470605A (en) * | 2018-11-02 | 2019-03-15 | 大连海事大学 | A kind of inductance type oil liquid detection sensor |
| CN109470605B (en) * | 2018-11-02 | 2021-02-12 | 大连海事大学 | Inductance type oil detection sensor |
| CN113439011A (en) * | 2018-12-12 | 2021-09-24 | 比卡尔喷嘴责任有限公司 | Sander with system for controlling loading of abrasive material |
| CN113439011B (en) * | 2018-12-12 | 2024-03-01 | 比卡尔喷嘴责任有限公司 | Sand blaster with system for controlling loading of abrasive material |
| CN110926999A (en) * | 2019-12-12 | 2020-03-27 | 天津大学仁爱学院 | Machine oil ferromagnetic metal particle on-line measuring device |
| CN110926999B (en) * | 2019-12-12 | 2022-04-05 | 天津大学仁爱学院 | Machine oil ferromagnetic metal particle on-line measuring device |
| CN110954314A (en) * | 2019-12-18 | 2020-04-03 | 北京昊鹏智能技术有限公司 | Equipment wear prediction method and device |
| CN112709924A (en) * | 2020-12-28 | 2021-04-27 | 国家电投集团广西兴安风电有限公司 | Bearing lubricating grease control method and device and storage medium |
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