CN206862947U - A kind of aircraft engine oil chip detection and analysis integrated design device - Google Patents
A kind of aircraft engine oil chip detection and analysis integrated design device Download PDFInfo
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- CN206862947U CN206862947U CN201720802534.5U CN201720802534U CN206862947U CN 206862947 U CN206862947 U CN 206862947U CN 201720802534 U CN201720802534 U CN 201720802534U CN 206862947 U CN206862947 U CN 206862947U
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- chip detection
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- adsorbent equipment
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Abstract
A kind of aircraft engine oil chip detection and analysis integrated design device, are related to aircraft engine oil monitoring.Provided with chip detection sensor and magnetic field type adsorbent equipment, the chip detection sensor uses cylindrical type capacitance sensor, and the cylindrical type capacitance sensor is provided with inner core and outer core, and inner core is connected with outer core by coaxial flange；The magnetic field type adsorbent equipment is made up of coaxial inner wall, coaxial outer and external electrical magnet, is active connection between coaxial inner wall and coaxial outer；The chip detection sensor and magnetic field type adsorbent equipment are bolted in the pipeline for being directly integrated in Aero-Engine Lubrication System.Realize the real time on-line monitoring to aircraft engine oil.Ski-jump takeoff is one of important component of aero-engine health control, and the raising for the reduction of aero-engine operation cost, security, reliability is provided and effectively benefited.
Description
Technical field
Aircraft engine oil monitoring is the utility model is related to, is detected more particularly, to a kind of aircraft engine oil chip
With analyzing integrated design device.
Background technology
As typical complication system, the structure of aero-engine is extremely complex, and is on active service in high temperature, the severe ring of high speed
Under border, not only it is easier to that various mechanical failures occur, and performance degradation easily occurs for critical component.Therefore, aero-engine
Health status directly affect the flight safety and operation cost of aircraft.In order to improve the security of engine military service process and can
By property, it is pre- that three key airline companies sky manufacturers of engines GE, Luo Luo and Pu Hui have started progressively application and trouble diagnosis on the engine
Survey and health control technology, are gradually converted from traditional periodic maintenance to condition maintenarnce.According to engine health control skill
The difference of art object-oriented, it specifically can be divided into four direction：Towards gas circuit, towards oil system, towards vibrational system
And towards unit body life time.
Aircraft engine oil is in addition to playing lubrication and cooling function, also as each caused by engine scuffing or destruction
The transportation media at kind bits end.Engine can constantly generate less than 10 μm of bits end in normal course of operation, if bits end is more than 10 μ
During m, then mean there may be abnormal conditions, and continuing to run with engine, species, the size of caused chip particle
It can be continuously increased, ([1] Srinidhi Murali, Xingao Xia, Ashish untill power failure
V.Jagtiani,Joan Carletta,Jiang Zhe.Capacitive Coulter counting:detection of
metal wear particles in lubricant using a microfluidic device[J].Smart
Materials and Structures,2009,18(3):037001).On the other hand, these chips also result in the property of lubricating oil
It can degenerate, lose lubricating function.Therefore, lubricating oil is monitored, not only can effectively diagnoses engine rotating components
State of wear, and predictable lubricating oil performance change, support is provided for engine performance change, condition based maintenance, prevents to dash forward
Right failure ([2] Matthew Appleby, Fred K.Choy, Li Du, Jiang Zhe.Oil debris and
viscosity monitoring using ultrasonic and capacitance/inductance measurements
[J].Lubrication Science,2013,25(8):507-524)。
The physical distribution structure of engine health monitoring systems mainly has：Mobile system and ground subsystem, this is also determined
Realize two kinds of different approaches of ski-jump takeoff, online ski-jump takeoff and offline ski-jump takeoff.
At present, the most ripe off-line method in aircraft engine oil monitoring field is analytic ferrographic method and spectra methods,
But ferrograph analyzer involves great expense with spectroanalysis instrument, equipment is complicated, analysis time length；The online ski-jump takeoff developed
Method has ultrasonic method, magnetic field method, capacitance method, resonance method etc., where a kind of independent application of method has its limitation, by magnetic field method
Combine with capacitance method, high measurement accuracy, low cost, low the advantages that disturbing, be simple in construction, being easily integrated can be achieved.
Online ski-jump takeoff is based on the sensing system being integrated in engine oil system, by detecting in real time
Contained chip in lubricating oil, judges whether mechanical engine members break down, and is the important means for realizing engine health control
One of, be advantageous to improve engine reliability of operation, security, reduce maintenance cost.
The content of the invention
The purpose of this utility model is to provide need not do any variation to aero-engine, and implementation is simple, cost
A kind of cheap aircraft engine oil chip detection and analysis integrated design device.
The utility model is provided with chip detection sensor and magnetic field type adsorbent equipment, and the chip detection sensor is using circle
Column type capacitance sensor, the cylindrical type capacitance sensor are provided with inner core and outer core, and inner core is connected with outer core by coaxial flange；Institute
State magnetic field type adsorbent equipment to be made up of coaxial inner wall, coaxial outer and external electrical magnet, be between coaxial inner wall and coaxial outer
Activity connection；The chip detection sensor and magnetic field type adsorbent equipment, which are bolted, is directly integrated in aero-engine cunning
In the pipeline of oil system.
The coaxial outer of the magnetic field type adsorbent equipment can use non-conductive material, to avoid magnetic field shielding phenomenon from producing
Raw, the coaxial inner wall of the magnetic field type adsorbent equipment, which can use, has adhesion material, and the detrital grain of deposition is fixed；
The external magnet can use electromagnet, feedback control break-make of the electromagnet by EEC according to chip detection sensor, external magnet
Rotated around coaxial outer, realize chip uniform deposition in the purpose of coaxial inner wall.
The inner core and outer core of the cylindrical type capacitance sensor use conductive material, such as copper, and two as electric capacity
Pole, inner core and outer core realize connection using coaxial flange.
The chip detection sensor and magnetic field type adsorbent equipment, configuration is simple, can quickly, be easily integrated in aviation
On engine.
The chip detection sensor is cylindrical type capacitance sensor, and the detection of lubricating oil chip can be achieved, and chip enters lubricating oil
Lubricating oil can be polluted so that the dielectric constant of itself changes, feeding back to capacitor makes measured value change.
The outer wall both ends of the magnetic field type adsorbent equipment are thin, middle thick, and lubricating oil flows into from side taper end, even from point midway
Speed enters outer wall middle-end, now by gravity and magneticaction, the also influence of viscous resistance, magnetic force, gravity in deposition process
It is all y direction with viscous resistance action direction, is equivalent to one and makes a concerted effort, this makes a concerted effort to give the acceleration of chip one.Different sizes are broken
Bits make different with joint efforts because magnetic force is different, and acceleration is also different, and outer wall middle-end radius is fixed, the detrital deposit time because
This is different, because horizontal velocity is constant, so different size chips are due to the difference of sedimentation time, so that detrital deposit is in
Existing chainlike distribution.
During the horizontal velocity difference of the lubricating oil flowing, detrital deposit present position is different, and flow velocity can cause big chi slowly excessively
Very little detrital deposit position is excessively near, and flow velocity is too fast may to be made outside detrital deposit to magnetic field type adsorbent equipment, and the big I of flow velocity is according to magnetic
Field formula adsorbent equipment interlude radius, length is different and changes.
Design method of the present utility model is as follows：
1) chip detection sensor and magnetic field type chip adsorbent equipment are integrated in Aero-Engine Lubrication System, got dirty
The lubricating oil of dye carries out chip detection by chip detection sensor, and the chip detection sensor realizes data acquisition；
2) by the data feedback that chip detection sensor gathers into EEC (electronic engine management system), EEC controls are inhaled
The work of adsorption device, the chip contained in lubricating oil is adsorbed, and detrital deposit is fixed；
3) during aircraft maintenance down, adsorbent equipment is taken out, the chip on adsorbent equipment is analyzed and can determine whether machinery in engine
The whether faulty generation of part.
The utility model utilizes electric capacity and magnetization theory, and lubricating oil is by cylindrical type capacitance sensor, via the dielectric of lubricating oil
Constant change feedback, obtains the variable quantity of lubricating oil quality；Again by adsorbent equipment, ferromagnetic debris is attracted to be adsorbed in dress by magnetic force
Inwall is put, by inwall adhesion material, realizes fixed deposition of the chip on inwall.
The utility model has the advantages that：
1) cylindrical type capacitance sensor in the utility model, the chip content in aircraft engine oil can be examined
Survey, measured value feeds back to EEC and can control adsorbent equipment whether to work, and also can determine whether lubricating oil performance change degree, and judging whether should
Renewal of oil.
2) lubricating oil chip adsorbent equipment part of the present utility model, can inhale to the chip in aircraft engine oil
Attached fixation, and the effect of uniform chainlike distribution deposition is realized, can be to mechanical engine members by observing detrital deposit result
Wear the analysis anticipation on difinite quality.
3) simple system, easy to operate, the utility model detects lubricating oil chip with analytical integration in set of device, and
Special device is not required to without complex component, during operation, it is simple and easy to do.
4) integrated level is high, can quickly and easily be integrated in Aero-Engine Lubrication System：Designed lubricating oil chip detection point
Integral method is analysed, only need to be in the original oil system of aero-engine without carrying out design of part transformation to aero-engine
Light and handy widget is added, is easily integrated, and function is complete.
The utility model realizes aircraft engine oil detection and analysis integrated design, realizes to aero-engine
The real time on-line monitoring of lubricating oil.Ski-jump takeoff is one of important component of aero-engine health control, will be that aviation is sent out
The reduction of motivation operation cost, the raising of security, reliability, which provides, effectively benefits.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of the utility model chip detection sensor.
Fig. 3 is the utility model magnetic field type adsorbent equipment schematic diagram.
Embodiment
With reference to the accompanying drawings and examples, the utility model is described in further detail.
As shown in Figures 1 to 3, the utility model embodiment is provided with chip detection sensor and magnetic field type adsorbent equipment, described
Chip detection sensor uses cylindrical type capacitance sensor, and the cylindrical type capacitance sensor is provided with inner core 5 and outer core 4, inner core 5
Connected with outer core 4 by coaxial flange；The magnetic field type adsorbent equipment is by 3 groups of coaxial inner wall 1, coaxial outer 2 and external electrical magnet
Into being active connection between coaxial inner wall 1 and coaxial outer 2；The chip detection sensor and magnetic field type adsorbent equipment pass through
Bolt connection is directly integrated in Aero-Engine Lubrication System A pipeline.
The coaxial outer of the magnetic field type adsorbent equipment can use non-conductive material, to avoid magnetic field shielding phenomenon from producing
Raw, the coaxial inner wall of the magnetic field type adsorbent equipment, which can use, has adhesion material, and the detrital grain of deposition is fixed；
The external magnet can use electromagnet, feedback control break-make of the electromagnet by EEC according to chip detection sensor, external magnet
Rotated around coaxial outer, realize chip uniform deposition in the purpose of coaxial inner wall.
The inner core and outer core of the cylindrical type capacitance sensor use conductive material, such as copper, and two as electric capacity
Pole, inner core and outer core realize connection using coaxial flange.
Design method of the present utility model is as follows：
First, chip detection sensor and magnetic field type chip adsorbent equipment are integrated in Aero-Engine Lubrication System,
Detection sensor is cylindrical type capacitance sensor, and because the lubricating oil containing chip is contaminated, now the dielectric constant of lubricating oil will
Difference, the difference are fed back in cylindrical type apacitance sensor measurements with the dielectric constant of pollution-free lubricating oil, measured value number
According to being transferred in EEC, EEC is based on whether this control adsorbent equipment works.
Then, lubricating oil is flowed into magnetic field type chip adsorbent equipment, if now ferromagnetic debris amount exceedes setting threshold in lubricating oil
Value, adsorbent equipment external electromagnetic Tie Tong electricity work, magnetizes chip in lubricating oil, produces magnetic force, by the traction of magnetic force, detrital deposit is arrived
On adsorbent equipment inwall, because inwall has adhesion, the chip of deposition can be fixed.Because external magnet uniformly revolves
Turn, chip uniform deposition can be made to be fixed on inwall.
The inside and outside wall of adsorbent equipment barrel connects for activity, when engine maintenance down, can take out inwall, leads to
The quantity and size of observation inwall institute dislodged debris are crossed, can determine whether engine interior mechanical part breaks down.
The utility model is described in further detail by taking ski-jump takeoff technology and Fig. 1~3 as an example below.
Aircraft engine oil chip detection described in the utility model and the structure of analysis integrated design device embodiment
Schematic diagram is as shown in figure 1, main realize that function for the online lubricating oil chip detection of aero-engine and analysis, realizes that lubricating oil chip is examined
Brake device is as shown in Fig. 2 realize that lubricating oil chip analytic function device is as shown in Figure 3.
The realization of lubricating oil chip on-line checking function is using dielectric constant capacitance principle is become, as shown in Fig. 2 being designed to a circle
Column type capacitance sensor, its outer core and inner core use conductive material, such as copper, inner core radius 1mm, length 40mm,
The inside and outside anode-cathode distance of core two is 3mm, and outer core thickness is 1mm, and inside and outside core realizes connection using coaxial flange.When contaminated oil flow
During through capacitance sensor, the dielectric constant for now having received the lubricating oil of pollution has been changed compared to pollution-free lubricating oil dielectric constant
Become, feed back on capacitance sensor, i.e., measured capacitance changes, and transmitting measured values can determine whether out in lubricating oil into EEC
Contained amount of debris, so as to control magnetic field type chip adsorbent equipment to work.
The magnetization principle that the realization of lubricating oil chip analytic function utilizes, as shown in figure 3, magnetic field type adsorbent equipment outer wall uses
Non-conductive material, magnetic field shielding phenomenon can be avoided；Inwall uses the material with adhesion, so as to be deposited on inwall
Chip is fixed；External magnet uses electromagnet form, and by EEC control circuit break-makes, magnetic field intensity caused by magnet is 1T, outside
Portion's magnet is at the uniform velocity rotated with 200r/min rotating speed, chip uniform deposition is fixed on inwall.
Magnetic field type adsorbent equipment outer wall is the tubular structure that both ends are thin, centre is thick, and inwall is embedded in the interlude of outer wall；Two is thin
End radius is 4mm, and length 15mm, interlude radius is 10mm, length 45mm.During work, lubricating oil flows into from side taper end,
With horizontal velocity VxEnter outer wall middle-end from point midway, now by gravity FgWith magnetic force Fc, also have stickiness resistance in deposition process
Power Fn, magnetic force, gravity and viscous resistance composite force are y direction F, and the acceleration for giving chip is aF, outer wall middle-end radius is
R, detrital deposit time isHorizontal velocity is constant, and due to different size chips, its F difference of making a concerted effort is larger, therefore
Different size chips due to the difference of sedimentation time, can homogenous linear be deposited on adsorbent equipment inwall.As horizontal velocity VxNo
Meanwhile detrital deposit present position is different, flow velocity can make it that large scale detrital deposit position is excessively near slowly excessively, thus use flow velocity for
1m/s。
In summary, the utility model combination lubricating oil chip on-line checking is with analyzing in one, and device is simple, is easy to collect
Into available for aircraft engine oil health monitoring.
Claims (2)
1. a kind of aircraft engine oil chip detection and analysis integrated design device, it is characterised in that detect and pass provided with chip
Sensor and magnetic field type adsorbent equipment, the chip detection sensor use cylindrical type capacitance sensor, and the cylindrical type electric capacity passes
Sensor is provided with inner core and outer core, and inner core is connected with outer core by coaxial flange；The magnetic field type adsorbent equipment is by coaxial inner wall, coaxial
Outer wall and external electrical magnet composition, are active connection between coaxial inner wall and coaxial outer；The chip detection sensor and magnetic
Field formula adsorbent equipment is directly integrated in the pipeline of Aero-Engine Lubrication System by bolt.
2. a kind of aircraft engine oil chip detection exists with analysis integrated design device, its feature as claimed in claim 1
Electromagnet is used in the external magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720802534.5U CN206862947U (en) | 2017-07-05 | 2017-07-05 | A kind of aircraft engine oil chip detection and analysis integrated design device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720802534.5U CN206862947U (en) | 2017-07-05 | 2017-07-05 | A kind of aircraft engine oil chip detection and analysis integrated design device |
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| Publication Number | Publication Date |
|---|---|
| CN206862947U true CN206862947U (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720802534.5U Expired - Fee Related CN206862947U (en) | 2017-07-05 | 2017-07-05 | A kind of aircraft engine oil chip detection and analysis integrated design device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328828A (en) * | 2017-07-05 | 2017-11-07 | 厦门大学 | Aircraft engine oil chip is detected and analysis integrated design method and device |
| CN110715886A (en) * | 2019-10-29 | 2020-01-21 | 南京航空航天大学 | Oil wear debris online monitoring method based on optical low-coherence imaging |
| CN112666339A (en) * | 2019-10-16 | 2021-04-16 | 中国石油化工股份有限公司 | Online analysis system and method for lubricating oil of unit oil station |
-
2017
- 2017-07-05 CN CN201720802534.5U patent/CN206862947U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328828A (en) * | 2017-07-05 | 2017-11-07 | 厦门大学 | Aircraft engine oil chip is detected and analysis integrated design method and device |
| CN112666339A (en) * | 2019-10-16 | 2021-04-16 | 中国石油化工股份有限公司 | Online analysis system and method for lubricating oil of unit oil station |
| CN110715886A (en) * | 2019-10-29 | 2020-01-21 | 南京航空航天大学 | Oil wear debris online monitoring method based on optical low-coherence imaging |
| CN110715886B (en) * | 2019-10-29 | 2020-09-01 | 南京航空航天大学 | Oil wear debris online monitoring method based on optical low-coherence imaging |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180109 Termination date: 20180705 |