CN103808911A - Lubricating oil detection device - Google Patents
Lubricating oil detection device Download PDFInfo
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- CN103808911A CN103808911A CN201310664593.7A CN201310664593A CN103808911A CN 103808911 A CN103808911 A CN 103808911A CN 201310664593 A CN201310664593 A CN 201310664593A CN 103808911 A CN103808911 A CN 103808911A
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Abstract
The invention discloses a lubricating oil detection device. The device comprises a detection circuit, a detection pipeline and sensors which are arranged on the detection pipeline and are coupled with the detection circuit, wherein the sensors comprise an abrasive particle sensor, a humidity sensor and a quality sensor; lubricating oil to be detected flows through the detection pipeline; the abrasive particle sensor is configured to detect oil abrasive particles of the lubricating oil; the humidity sensor is configured to detect the humidity of the lubricating oil; the quality sensor is configured to detect the oil quality of the lubricating oil; the detection circuit is configured to respectively obtain oil abrasive particle data, oil humidity data and oil quality data from the abrasive particle sensor, the humidity sensor and the quality sensor, and output a detection result according to the obtained data. With the adoption of the technical scheme, the information of the abrasive particles, water, oil products in the lubricating oil can be comprehensively known, so that operating and maintaining of equipment are facilitated, and the cost is reduced.
Description
Technical field
The present invention relates to plant equipment detection field, particularly, relate to a kind of lubricating oil pick-up unit.
Background technology
The operation of plant equipment need to be lubricated.Lubricating oil is the most frequently used lubricant.There are vital impact in use and the life-span of good lubricating oil product confrontation plant equipment.The standard of weighing lubricating oil quality can comprise a series of parameter, and some of them parameter (as moisture) has important impact to lubricating oil quality.For example, if the moisture in lubricating oil is too high, can cause emulsification of lubricant, lose lubricating ability, and reduce greatly lubricant life, and then the life-span of aggravation equipment wearing reduction plant equipment.Therefore,, if find in time the variation of lubricant parameter, just can avoid the appearance of the problems referred to above.
On the other hand, owing to directly contacting with the part in plant equipment, the wear particle of some parts can enter into lubricating oil, and like this, lubricating oil just becomes the important carrier of the mechanical failure such as wearing and tearing information.Therefore, the parameter of lubricating oil is detected to the Non-Destructive Testing that can realize plant equipment, thus for diagnosis plant equipment fault foundation is provided.
In prior art, the technology that lubricating oil is detected is mainly divided into offline inspection technology and online measuring technique.Wherein, offline inspection technology mainly comprises the laboratory methods such as analyzing iron spectrum, optical density sampling analysis, grain count.The advantage of these technology is to make accurately qualitative and quantitative test to lubricating oil, and shortcoming is to need offline inspection, and the information to lubricating oil and analysis that cannot be real-time be especially not suitable for as difficult testing environments of sampling such as wind-powered electricity generation units.Offline inspection technology mostly needs testing staff to possess higher professional knowledge simultaneously, is therefore difficult to use in actual production field, can only serve as the detection means in laboratory; Online measuring technique mainly contains oil residue detection, viscosity measurements, water content detection etc.Although online measuring technique of the prior art can be made comparatively accurately and measuring some physical and chemical parameter of lubricating oil.But on-line monitoring technique of the prior art only can carry out single analysis to the quality of lubricating oil.Cannot obtain the failure condition of lubrication state and plant equipment.
For the problems referred to above, in prior art, there is no good solution.
Summary of the invention
The object of this invention is to provide a kind of equipment, this equipment can carry out on-line monitoring to the many kinds of parameters of lubricating oil.
To achieve these goals, the invention provides a kind of lubricating oil pick-up unit, this device comprises: testing circuit, signal piping and on described signal piping, arrange with the coupling of described testing circuit with lower sensor: abrasive particle sensor, humidity sensor and quality sensor, wherein the lubricating oil to be detected described signal piping of flowing through; Described abrasive particle sensor is configured to detect the oil liquid abrasive grain of described lubricating oil; Described humidity sensor is configured to detect the fluid humidity of described lubricating oil; Described quality sensor is configured to detect the Oil Quality of described lubricating oil; And described testing circuit is configured to obtain oil liquid abrasive grain data, fluid humidity data and Oil Quality data from described abrasive particle sensor, described humidity sensor and described quality sensor respectively, and according to obtained data output detections result.
Alternatively, described signal piping is in parallel with lubrication oil circulation pipeline.
Alternatively, described humidity sensor is set up and is connected in described signal piping.
Alternatively, described quality sensor is set up and is connected in described signal piping.
Alternatively, described humidity sensor and described quality sensor are arranged on the bottom of place signal piping.
Alternatively, in described signal piping, there is surplus valve.
Alternatively, in described signal piping, there is throttling valve.
Alternatively, described abrasive particle sensor is inductance type abrasive particle sensor or ultrasonic type abrasive particle sensor.
Alternatively, described testing circuit comprises sensor driver element, sensing data acquiring unit and data analysis unit, and wherein said sensor driver element is configured to provide power drives to described abrasive particle sensor and described quality sensor; Described sensing data acquiring unit is configured to obtain oil liquid abrasive grain data, fluid humidity data and Oil Quality data from described abrasive particle sensor, described humidity sensor and described quality sensor respectively; And described data analysis unit is configured to analyze data the output detections result that described sensing data acquiring unit obtains.
Alternatively, this device is also included in the valve body that described signal piping two ends arrange.
Pass through technique scheme, utilize the abrasive particle sensor, humidity sensor and the quality sensor that on signal piping, arrange, realize the analysis of the combination property to lubricating oil, especially by the obtaining of the abrasive particle information in lubricating oil, the diagnosing malfunction analysis of the part failure information by carrying in lubricating oil of having realized to plant equipment.Realize information overall understandings such as abrasive particle in lubricating oil, moisture, oil products, be conducive to the operation maintenance to equipment, reduced costs.
Other features and advantages of the present invention are described in detail the embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for instructions, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is according to the composition structural representation of a kind of lubricating oil pick-up unit of embodiment of the present invention;
Fig. 2 is the abrasive particle sensor fixing structure schematic diagram that can implement in the pick-up unit shown in Fig. 1;
Fig. 3 is the mounting structure for moisture sensor schematic diagram that can implement in the device shown in Fig. 1;
Fig. 4 is the quality sensor mounting structure schematic diagram that can implement in the device shown in Fig. 1;
Fig. 5 is according to the structural representation of signal piping in the pick-up unit of embodiment of the present invention; And
Fig. 6 is according to the composition schematic diagram of testing circuit in the pick-up unit of embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.Describe as an example of the lubricating oil detection to gear case example below.
Fig. 1 is according to the composition structural representation of a kind of lubricating oil pick-up unit of embodiment of the present invention.As shown in Figure 1, a kind of lubricating oil pick-up unit 100 that embodiment of the present invention provides, comprise: testing circuit 101, signal piping 102 and on described signal piping 102, arrange with described testing circuit 101 be coupled with lower sensor: abrasive particle sensor 103, humidity sensor 104 and quality sensor 105, wherein the lubricating oil to be detected described signal piping 102 of flowing through; Described abrasive particle sensor 103 is configured to detect the oil liquid abrasive grain of described lubricating oil; Described humidity sensor 104 is configured to detect the fluid humidity of described lubricating oil; Described quality sensor 105 is configured to detect the Oil Quality of described lubricating oil; And described testing circuit 101 is configured to obtain oil liquid abrasive grain data, fluid humidity data and Oil Quality data from described abrasive particle sensor 103, described humidity sensor 104 and described quality sensor 105 respectively, and according to obtained data output detections result.
Pass through technique scheme, utilize in upper abrasive particle sensor, humidity sensor and the quality sensor arranging of signal piping (or oil pipe), realize the analysis of the combination property to lubricating oil, especially by the obtaining of the abrasive particle information in lubricating oil, the diagnosing malfunction analysis of the part failure information by carrying in lubricating oil of having realized to plant equipment.Realize information overall understandings such as abrasive particle in lubricating oil, moisture, oil products, be conducive to the operation maintenance to equipment, reduced costs.
Mounting means and the action principle of the sensor using in the lubricating oil pick-up unit 100 that below, 2-4 provides embodiment of the present invention by reference to the accompanying drawings describe.
Fig. 2 is the abrasive particle sensor fixing structure schematic diagram that can implement in the pick-up unit shown in Fig. 1.As shown in Figure 2, can be induction abrasive particle sensor according to the abrasive particle sensor 103 of embodiment of the present invention, utilize electromagnetic induction principle for example, to detect quantity and the size of the mechanical abrasive particle existing in the lubricating oil abrasive particle of gear (, from).Abrasive particle sensor 103 can comprise for example, around (, being wound around) for example, drive coil 21 and inductive coil 22 on lubricating oil signal piping (, abrasive particle sensor pipeline).The pumping signal of self-detection circuit 101 (for example in the future, sine wave signal) pass into drive coil 21 and make it produce distributed magnetic field, metal worn particle in lubricating oil produces eddy current and affects the distribution of electromagnetic field because electromagnetic eddy effect makes abrasive particle, and inductive coil 22 detects the variation of magnetic flux.Wherein, the abrasive particle in lubricating oil can be ferromagnetism or nonferromagnetic.In the time thering is the lubricating oil of metal worn particle and flow through inductive coil 22, can judge the size of abrasive particle in lubricating oil according to the induction current size occurring in inductive coil 22.Inductive coil 22 also can be connected with testing circuit 101, provide excitation collection signal to utilize abrasive particle sensor 103 to realize with cordless by circuit board like this and obtain oil liquid abrasive grain data, for further judging that the operation of plant equipment and failure condition provide data foundation.In embodiment, the pipeline of abrasive particle sensor 103 can be threaded connection mode and is connected in signal piping 102 or is connected among the oil circuit of drawing from oil pipe.For the ease of installation and removal, on the oil pipe of sensor both sides, valve body 20(can be installed for example, ball valve), can time closing in installation of sensors and dismounting, be convenient to technician equipment is safeguarded.In different embodiments, abrasive particle sensor 103 can be ultrasonic type abrasive particle sensor.
Fig. 3 is the mounting structure for moisture sensor schematic diagram that can implement in the device shown in Fig. 1.Lubricating oil fluid humidity sensor 104 can directly see through tube wall insertion and be arranged on signal piping.Humidity sensor 104, should fully contact with lubricating oil in use (for example,, in dip lubrication oil) can detect the moisture in lubricating oil.In a preferred embodiment, humidity sensor 104 is placed in to the BOP of place signal piping, so that the probe segment of sensor is all dipped among lubricating oil all the time.Can valve body 20(be set for example at the entrance of signal piping, ball valve), time to close in installation of sensors and dismounting, be convenient to technician and safeguard.Humidity sensor 104 can directly be connected with testing circuit 101, and detection signal is transferred to the signal processing circuit in testing circuit 101.According to the detection data of humidity sensor 104, thereby can know moisture deduction emulsification of lubricating oils situation and the serviceable life in lubricating oil.
Fig. 4 is the quality sensor mounting structure schematic diagram that can implement in the device shown in Fig. 1.As shown in Figure 4, quality sensor 105 can be directly sees through tube wall to be inserted and be arranged in signal piping 102, can valve body 20(be set for example at the entrance of signal piping, ball valve), to close during with dismounting at installation of sensors, be convenient to technician and safeguard.Quality sensor 105 can directly be connected with testing circuit 101, and testing circuit 101 can provide to it driving voltage of 5V, and quality sensor 105 can transfer to detection signal the signal processing circuit in testing circuit 101.The lubricating oil pick-up unit providing by embodiment of the present invention, can on-line monitoring gear box lubricating oil quality by quality sensor 105, can directly and simultaneously measure the many kinds of parameters such as viscosity, density, specific inductive capacity and temperature of fluid, for maintenance and fault handling provide foundation.
In the above-described embodiment, signal piping 102 can be the part in lubrication oil circulation loop.For the ease of installing and using, in a preferred embodiment, signal piping 102 can be the pipeline in parallel with lubrication oil circulation pipeline.The structure of the signal piping 102 below in conjunction with accompanying drawing 5 to example describes.
Fig. 5 is according to the structural representation of signal piping in the pick-up unit of embodiment of the present invention.As shown in Figure 5, in the signal piping 102 in the pick-up unit of embodiment of the present invention, can comprise surplus valve 51, throttling valve 52 and tensimeter 53.Wherein, surplus valve 51 and throttling valve 52 can form protection loop, and the lubricating oil of the sensor that prevents from flowing through exceedes specified pressure and the nominal flow rate of sensor.Wherein surplus valve 51 can be micro-pressure surplus valve.Before being installed, lubricating oil pick-up unit 100 surplus valve 51 can be opened to the pressure in pipeline is adjusted under the rated insulation voltage value of lubricating oil pick-up unit 100.In a preferred embodiment, pressure can be adjusted to 80 percent of rated insulation voltage value.Rated insulation voltage value can be the specified withstand voltage of minimum of each sensor.By the flow velocity of lubricating oil in the whole signal piping 102 of throttling valve 52 capable of regulating, guarantee image data correct under the nominal flow rate of abrasive particle sensor 103.Two ends at signal piping 102 for example can arrange valve body 20(, ball valve), like this, if tensimeter 53 readings exceed default value in the time that lubricating oil pick-up unit 100 is worked, can take oil-break to check measure to whole device.
In embodiment, can comprise multiple unit modules according to the testing circuit 102 of embodiment of the present invention.In one embodiment, testing circuit 102 can comprise: sensor driver element, sensing data acquiring unit and data analysis unit, wherein said sensor driver element can be configured to provide power drives (for example, pumping signal) to described abrasive particle sensor and described quality sensor; Described sensing data acquiring unit can be configured to obtain oil liquid abrasive grain data, fluid humidity data and Oil Quality data from described abrasive particle sensor, described humidity sensor and described quality sensor respectively; And described data analysis unit can be configured to analyze data the output detections result that described sensing data acquiring unit obtains.The composition of the testing circuit 102 below in conjunction with accompanying drawing 6 to example describes.
Fig. 6 is according to the composition schematic diagram of testing circuit in the pick-up unit of embodiment of the present invention.As shown in Figure 6, testing circuit 102 can comprise power supply voltage regulation unit.Above-mentioned sensor driver element can obtain power from power supply voltage regulation unit, to produce sine wave by sine-wave generator and deliver to abrasive particle sensor 103 after power drive, deliver to quality sensor 105 simultaneously by DC converting and after power drive, and be 5V voltage driving data analytic unit by DC converting.Sensing data acquiring unit can comprise the data acquisition circuit, amplifying circuit and the analog to digital conversion circuit that are connected with each sensor.Data analysis unit can comprise processor, storer and data I/O interface (for example, RS485 interface).Testing circuit as shown in Figure 6, can realize that sensor drives, sensing data obtains, sensing data analysis and output detections result be to functions such as storer or host computers.By unified circuit, each different sensor is carried out to power drive, comprise simple alternating current driving and direct drive, saved installing space, simplified the process that sensor is installed respectively.
By technical scheme provided by the invention, can the integrated data of (for example, gear case) lubricating oil fluid abrasive particle, humidity, oil product be gathered and be analyzed, greatly improve the accuracy rate to Fault Diagnosis of Gear Case, superior performance.
By the detection of the ferromagnetism in lubricating oil fluid and non ferromagnetic debris, and carry out statistical analysis, can for example, carry out accurately location and wear trend analysis to the trouble unit in plant equipment (, gear case).
Wherein, by the analysis to liquid water content in gear box lubricating oil fluid, can understand in time the failure degree of lubricating oil.By the analysis to gear case lubrication qualities, can understand the degradation of fluid.The signal of multiple sensors is carried out to synthetical collection analysis, unification stores and uploads, be conducive to the information of lubricating oil to make comprehensive diagnosis, can at utmost make and accurately gather and analyze fluid information, save maintenance cost, guarantee the good operation of gear case, can really realize foreseeability maintenance.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a lubricating oil pick-up unit, is characterized in that, this device comprises:
Testing circuit, signal piping and on described signal piping, arrange with the coupling of described testing circuit with lower sensor: abrasive particle sensor, humidity sensor and quality sensor, wherein
The lubricating oil to be detected described signal piping of flowing through;
Described abrasive particle sensor is configured to detect the oil liquid abrasive grain of described lubricating oil;
Described humidity sensor is configured to detect the fluid humidity of described lubricating oil;
Described quality sensor is configured to detect the Oil Quality of described lubricating oil; And
Described testing circuit is configured to obtain oil liquid abrasive grain data, fluid humidity data and Oil Quality data from described abrasive particle sensor, described humidity sensor and described quality sensor respectively, and according to obtained data output detections result.
2. device according to claim 1, is characterized in that, described signal piping is in parallel with lubrication oil circulation pipeline.
3. device according to claim 1, is characterized in that, described humidity sensor is set up and is connected in described signal piping.
4. device according to claim 1, is characterized in that, described quality sensor is set up and is connected in described signal piping.
5. according to the device described in claim 3 or 4, it is characterized in that, described humidity sensor and described quality sensor are arranged on the bottom of place signal piping.
6. device according to claim 1, is characterized in that, in described signal piping, has surplus valve.
7. device according to claim 1, is characterized in that, in described signal piping, has throttling valve.
8. device according to claim 1, is characterized in that, described abrasive particle sensor is inductance type abrasive particle sensor or ultrasonic type abrasive particle sensor.
9. device according to claim 1, is characterized in that, described testing circuit comprises sensor driver element, sensing data acquiring unit and data analysis unit, wherein
Described sensor driver element is configured to provide power drives to described abrasive particle sensor and described quality sensor;
Described sensing data acquiring unit is configured to obtain oil liquid abrasive grain data, fluid humidity data and Oil Quality data from described abrasive particle sensor, described humidity sensor and described quality sensor respectively; And
Described data analysis unit is configured to analyze data the output detections result that described sensing data acquiring unit obtains.
10. device according to claim 1, is characterized in that, this device is also included in the valve body that described signal piping two ends arrange.
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| CN201310664593.7A CN103808911A (en) | 2013-12-09 | 2013-12-09 | Lubricating oil detection device |
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Cited By (8)
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| CN105954225A (en) * | 2016-05-13 | 2016-09-21 | 常熟理工学院 | Method and device for judging lubricating oil replacement cycle of diesel engine |
| CN108843778A (en) * | 2018-07-02 | 2018-11-20 | 昆明理工大学 | A kind of wind-driven generator wheel-box lubricating oil on-line control system and its control method |
| CN109163871A (en) * | 2018-11-09 | 2019-01-08 | 天地科技股份有限公司上海分公司 | Flitting rocker arm comprehensive state parameter on-line monitoring device |
| CN109184848A (en) * | 2018-08-28 | 2019-01-11 | 中国北方发动机研究所(天津) | A kind of distribution independent lubricating engine test plant |
| CN110017367A (en) * | 2019-04-17 | 2019-07-16 | 重庆长安汽车股份有限公司 | The intelligent monitor system of automobile transmission lubrication oil |
| CN113109287A (en) * | 2021-03-17 | 2021-07-13 | 杭州兰亮网络科技有限公司 | Detection method for obtaining image processing oil quality by additionally arranging sensor |
| CN113390750A (en) * | 2021-04-30 | 2021-09-14 | 郑州轻工业大学 | Detection equipment and detection method for lubricating oil in gear box |
| CN113720999A (en) * | 2020-05-20 | 2021-11-30 | 上海圣克赛斯液压股份有限公司 | Lubricating system oil cleanliness on-line monitoring device and wind driven generator |
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| CN105954225A (en) * | 2016-05-13 | 2016-09-21 | 常熟理工学院 | Method and device for judging lubricating oil replacement cycle of diesel engine |
| CN108843778A (en) * | 2018-07-02 | 2018-11-20 | 昆明理工大学 | A kind of wind-driven generator wheel-box lubricating oil on-line control system and its control method |
| CN108843778B (en) * | 2018-07-02 | 2021-09-14 | 昆明理工大学 | On-line control system and control method for gear box lubricating oil of wind driven generator |
| CN109184848A (en) * | 2018-08-28 | 2019-01-11 | 中国北方发动机研究所(天津) | A kind of distribution independent lubricating engine test plant |
| CN109184848B (en) * | 2018-08-28 | 2020-10-09 | 中国北方发动机研究所(天津) | Distributed independent lubrication engine test device |
| CN109163871A (en) * | 2018-11-09 | 2019-01-08 | 天地科技股份有限公司上海分公司 | Flitting rocker arm comprehensive state parameter on-line monitoring device |
| CN110017367A (en) * | 2019-04-17 | 2019-07-16 | 重庆长安汽车股份有限公司 | The intelligent monitor system of automobile transmission lubrication oil |
| CN113720999A (en) * | 2020-05-20 | 2021-11-30 | 上海圣克赛斯液压股份有限公司 | Lubricating system oil cleanliness on-line monitoring device and wind driven generator |
| CN113109287A (en) * | 2021-03-17 | 2021-07-13 | 杭州兰亮网络科技有限公司 | Detection method for obtaining image processing oil quality by additionally arranging sensor |
| CN113390750A (en) * | 2021-04-30 | 2021-09-14 | 郑州轻工业大学 | Detection equipment and detection method for lubricating oil in gear box |
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