CN105866199A - Online wearing particulate monitoring device based on electrification, electric ring adsorption and adjacent capacitance - Google Patents

Abstract

The invention relates to an online wearing particulate monitoring device based on electrification, electric ring adsorption and adjacent capacitance. A temperature control module, an electrification module, an electric-field centrifugation module, a mechanical centrifugation module, an adsorption module, an adjacent capacitance particulate monitoring module and a demagnetization module of the online wearing particulate monitoring device are connected in sequence. An oil inlet is arranged at one end of the temperature control module. The adsorption module specifically refers to a homopolar adjacent adsorption ring. The online wearing particulate monitoring device has the advantages that an adjacent capacitance sensor technology based on capacitance fringe effect is introduced, and non-invasion and unrestraint monitoring of wearing particulates is achieved; the wearing particulates in the oil are magnetized and polymerized into large particles through the electrification module, the electric-field centrifugation module and the mechanical centrifugation module, and the large particles move to the neighborhood of a tube wall to be adsorbed by the adsorption module, so that the strength of output monitoring signals of an adjacent capacitance sensor is improved; through the temperature control module and the reasonable design of the electrode plate layer structure of the adjacent capacitance sensor, noise is inhibited, and overall performance of the adjacent capacitance sensor monitoring device is optimized.

Description

By electrification, the absorption of automatically controlled ring and the wear particle on-Line Monitor Device of adjacent capacitor

[technical field]

The present invention relates to the wear particle on-line monitoring equipment in a kind of fluid pressure line fluid, be specifically related to a kind of electrification, the absorption of automatically controlled ring and the wear particle on-Line Monitor Device of adjacent capacitor, belong to hydraulic system technical field.

[background technology]

Wear particle in hydraulic system oil liquid not only can make kinematic pair produce abrasive wear but also the relative motion of kinematic pair can be made to be obstructed and cause control component actuation malfunctioning.Statistics both domestic and external show, hydraulic machinery 70% fault is derived from the particle contamination of fluid.Therefore, the wear particle in fluid is carried out on-line monitoring and has become one of important channel reducing abrasion and hydraulic system fault.

Capacitance sensor is applied to the pollution monitoring of machine fluid because it is easy to make, with low cost.Patent documentation 1(Chinese invention patent Authorization Notice No. CN101435788B) disclose a kind of online oil liquid monitoring sensor based on dielectric constant measurement and system thereof, the sensor of this invention includes bearing and is fixed on three poles of inside, three poles constitute differential cylindrical capacitor, the minor variations of sensor capacitance value can be monitored, thus the anti-minor variations pushing away fluid dielectric constant, and then realize the enforcement to contamination level of oil liquid and monitor.Sensor pole in this monitoring method is immersed in fluid, causes the change of fluid fluidised form, have impact on certainty of measurement；Fluid can form deposition oil film on sensor pole surface, not only causes certainty of measurement to decline, and the most also brings sensor to clean problem.

Document 2(Zhao Xin pool etc., Wuhan Univ. of Water Conservancy and Electric Power's journal, 1999(3)) disclosing a kind of Probe with Capacitor Sensor Used in Oil Monitoring, this probe is made up of a cylindrical glass pipe and the two halves circular electrode being close to this pipe outer wall, and it is substantially parallel plate capacitor sensor.This capacitance sensor excitation pole plate is retrained by conduit under fluid pressure diameter with receiving polar plate spacing, and owing to conduit under fluid pressure diameter is relatively large, this transducer sensitivity is not ideal enough.

Therefore, for solving above-mentioned technical problem, adsorbing and the wear particle on-Line Monitor Device of adjacent capacitor, to overcome described defect of the prior art with electrification, automatically controlled ring of a kind of innovation of necessary offer.

[summary of the invention]

For solving above-mentioned technical problem, it is an object of the invention to provide a kind of electrification, the absorption of automatically controlled ring and the wear particle on-Line Monitor Device of adjacent capacitor, its use non-invasive metering system, to measured without restrictive, signal is strong and highly sensitive, low cost, environmental suitability are strong in monitoring.

For achieving the above object, the technical scheme that the present invention takes is: by electrification, the absorption of automatically controlled ring and the wear particle on-Line Monitor Device of adjacent capacitor, it includes that temperature control module, electrification module, electric field are centrifuged module, mechanical centrifugal module, adsorption module, adjacent capacitor particulate matter monitoring module and demagnetization module；Wherein, described temperature control module, electrification module, electric field are centrifuged module, mechanical centrifugal module, adsorption module, adjacent capacitor particulate matter monitoring module and demagnetization module and are sequentially connected with；One end of described temperature control module is provided with fluid entrance；Described adsorption module uses homopolarity adjacent type absorbing ring；Described homopolarity adjacent type absorbing ring includes aluminium ring shape pipeline, forward solenoid, reverse solenoid and irony magnetic conduction cap；Described forward solenoid and reverse solenoid are respectively arranged in aluminium ring shape pipeline, and both are connected with electric current in opposite direction so that forward solenoid and reverse solenoid adjacent produce like pole；Described irony magnetic conduction cap is arranged on the inwall of aluminium ring shape pipeline, and it is positioned at forward solenoid and reverse solenoid adjacent and forward solenoid and the intermediate point of reverse solenoid axis.

The wear particle on-Line Monitor Device with electrification, the absorption of automatically controlled ring and adjacent capacitor of the present invention is further arranged to: described temperature control module includes heater, cooler and temperature sensor；Described heater uses the lubricating oil heater of the Chongqing gold letter of band temperature detection；Remover for surface evaporation type air cooling selected by described cooler, and the finned tube of cooler selects KLM type finned tube；Temperature sensor uses platinum resistance temperature sensor.

The wear particle on-Line Monitor Device with electrification, the absorption of automatically controlled ring and adjacent capacitor of the present invention is further arranged to: described electrification module includes some electrodes and an electrode controller；Described some electrodes are respectively connecting to electrode controller, and by electrode controller control.

The wear particle on-Line Monitor Device with electrification, the absorption of automatically controlled ring and adjacent capacitor of the present invention is further arranged to: described electric field is centrifuged module and includes positive plate, minus plate, insulating tape and pole plate controller；Wherein, described positive plate and minus plate are in being oppositely arranged, and described insulating tape is between positive plate, minus plate, and by positive plate and minus plate electrical isolation；Described pole plate controller is electrically connected on positive plate and minus plate.

The wear particle on-Line Monitor Device with electrification, the absorption of automatically controlled ring and adjacent capacitor of the present invention is further arranged to: described mechanical centrifugal module uses tangential influent stream centrifugal device, vortex generator centrifugal device, liquid whild-wind generator centrifugal device, elbow type pipe cyclone or eddy flow to be centrifuged module.

The wear particle on-Line Monitor Device with electrification, the absorption of automatically controlled ring and adjacent capacitor of the present invention is further arranged to: described eddy flow is centrifuged module and includes eddy flow tube wall, the first flow deflector, the second flow deflector, motor and flow transducer；Wherein, described first flow deflector is provided with 3, and these 3 first flow deflectors are uniformly distributed along tube wall inner periphery every 120 °, and its laying angle is set to 18 °；Described second flow deflector and the first flow deflector structure are identical, after it is arranged on the first flow deflector, and and the first flow deflector stagger 60 ° and be connected in tube wall, its laying angle is set to 36 DEG C；The long limit of described first flow deflector is connected with tube wall, and minor face extends along the axis of tube wall；Its leading edge frustrates into obtuse, and trailing edge is processed into wing, and its height is 0.4 times of tube wall diameter, 1.8 times of a length of tube wall diameter；Described motor connects and drives the first flow deflector and the second flow deflector, to regulate laying angle；Described flow transducer is arranged on the central authorities in tube wall.

The wear particle on-Line Monitor Device with electrification, the absorption of automatically controlled ring and adjacent capacitor of the present invention is further arranged to: described adjacent capacitor particulate matter monitoring module includes organic glass inner wall, ground shield, reception pole plate, excitation pole plate and outer wall；Wherein, described machine glass inner wall, ground shield and outer wall in tubular construction, and successively from-inner-to-outer arrange；The thickness of described machine glass inner wall is 0.5mm, and dielectric constant is 2.5；The dielectric constant of described ground shield is 1.5-2.5, and thickness is 1 to 2 times of outer wall thickness；Described reception pole plate, excitation pole plate are embedded in ground shield, and are positioned at outside machine glass inner wall；Described reception pole plate, excitation pole plate all use Peano curve structure pole plate layer, are provided with sealing coat between the two；The width of described sealing coat is 0.8-1 times of lucite inner wall thickness.

The wear particle on-Line Monitor Device with electrification, the absorption of automatically controlled ring and adjacent capacitor of the present invention is further arranged to: one end of described demagnetization module is provided with fluid outlet, and it is made up of remanent magnetism sensor and demagnetizer.

The wear particle on-Line Monitor Device with electrification, the absorption of automatically controlled ring and adjacent capacitor of the present invention is also configured to: it includes an ECU, described remanent magnetism sensor, demagnetizer, heater, cooler, temperature sensor, electrification module, electric field are centrifuged module, mechanical centrifugal module, adsorption module and adjacent capacitor particulate matter monitoring module and are all electrically connected on ECU, and by ECU control.

Compared with prior art, there is advantages that

1. present invention introduces adjacent capacitive sensors based on electric capacity edge effect, by wear particle is electrified, aggregates into bulky grain and centrifugal absorption is magnetized into tube wall to improve granule density, increase the dielectric constant of tube wall surface fluid, greatly improve sensor output signal strength the ingenious contradiction solving signal intensity and the conflict of penetration depth index.

2. in pole plate layer designs, introduce efficient frontier length and baroque Peano curve structure.In this Peano curve structure pole plate layer, the curve of excitation pole plate, reception pole plate and isolation pole plate composition can travel through all of point in square pole plate layer, obtains a curve being full of whole square pole plate sheaf space.In the case of pole plate aspect is long-pending fixing, this structure has the longest efficient frontier, maximum polar plate area and labyrinth, obtains optimum signal intensity with this.There is not been reported for this technology path.

3. the fluid pressure line wear particle monitoring technology route that temperature control module, electrification module, electric field are centrifuged module, mechanical centrifugal module, adsorption module, adjacent capacitor particulate matter monitoring module combine, both ensure that monitoring reliability, the overall performance simultaneously making again monitoring system is optimum.

[accompanying drawing explanation]

Fig. 1 is the structural representation of the wear particle on-Line Monitor Device using electrification, the absorption of automatically controlled ring and adjacent capacitor of the present invention.

Fig. 2 is the structure chart of the electrification module in Fig. 1.

Fig. 3-1 is the structural representation that the electric field in Fig. 1 is centrifuged module.

Fig. 3-2 is the connection diagram that the electric field in Fig. 1 is centrifuged module.

Fig. 4-1 is the schematic diagram of the tangential influent stream centrifugal device in Fig. 1.

Fig. 4-2 is the schematic diagram of the vortex generator centrifugal device in Fig. 1.

Fig. 4-3 is the schematic diagram of the elbow type pipe cyclone centrifugal device in Fig. 1.

Fig. 5-1 is the horizontal schematic diagram that the eddy flow in Fig. 1 is centrifuged module.

Fig. 5-2 is the radial direction schematic diagram that the eddy flow in Fig. 1 is centrifuged module.

Fig. 6 be the adsorbent equipment in Fig. 1 be the structural representation of homopolarity adjacent type absorbing ring.

Fig. 7-1 is the radial direction semi-cutaway of the adjacent capacitor particulate matter monitoring module in Fig. 1.

Fig. 7-2 is the transverse cross-sectional view of the adjacent capacitor particulate matter monitoring module in Fig. 1.

Fig. 7-3 is receiving pole plate and encouraging the schematic diagram of pole plate in Fig. 7-1.

Fig. 7-4 is the partial enlarged drawing in Fig. 7-3 at A.

Fig. 8 is the connection diagram of ECU.

[detailed description of the invention]

Refer to shown in Figure of description 1 to accompanying drawing 8, the present invention is a kind of electrification, the absorption of automatically controlled ring and the wear particle on-Line Monitor Device of adjacent capacitor, and it is centrifuged several parts such as module 3, mechanical centrifugal module 4, adsorption module 5, adjacent capacitor particulate matter monitoring module 6 and demagnetization module 8 and ECU10 is formed by temperature control module 1, electrification module 2, electric field.Wherein, described temperature control module 1, electrification module 2, electric field are centrifuged module 3, mechanical centrifugal module 4, adsorption module 5, adjacent capacitor particulate matter monitoring module 6 and demagnetization module 8 and are sequentially connected with.

One end of described temperature control module 1 is provided with fluid entrance 8, and for by defeated for hydraulic oil people's device, it is made up of heater, cooler and temperature sensor.This temperature control module 1 main purpose is to provide optimal magnetization temperature about 42 DEG C for magnetizing assembly.Meanwhile, temperature is as topmost environment noise, and different temperature can cause the fluid dielectric constant in fluid pressure line that notable change occurs, and keeps temperature constant that adjacent capacitive sensors can be avoided to be affected by temperature noise.

Described heater is electric heater, can use the lubricating oil heater of the Chongqing gold letter of band temperature detection own.Cooler can be selected for remover for surface evaporation type air cooling, the advantage having water-cooled and air cooling concurrently, good heat dissipation effect, uses light pipe, and fluid resistance is little；Cooler fin type is high wing, and finned tube selects KLM type finned tube, good heat-transfer, and thermal contact resistance is little, and fin and pipe contact area are big, and closely, firmly, it is good to bear cold and hot sudden turn of events ability, and fin root weather-resistant performance is high in laminating；The bank of tubes number optimum of air cooler is 8.Temperature sensor uses platinum resistance temperature sensor.

Referring to shown in Figure of description 2, described electrification module 2 makes wear particle charged, and it includes tube wall 21, some electrodes 22 and an electrode controller 23.Wherein, described some electrodes 22 are installed on tube wall 21, and it is respectively connecting to electrode controller 23.The fluid being adjusted to most preferably magnetize temperature carries metal particle entrance electrification module 2, applies voltage by electrode controller 23 to electrode 22, so that the wear particle in fluid is charged near electrode 22.

Referring to shown in Figure of description 3-1 and 3-2, described electric field is centrifuged module 3 makes the wear particle in hydraulic oil realize initial centrifugation, and it includes positive plate 31, minus plate 32, insulating tape 33 and pole plate controller 34.Wherein, described positive plate 31 and minus plate 32 are in being oppositely arranged, and described insulating tape 33 is between positive plate 31, minus plate 32, and by positive plate 31 and minus plate 32 electrical isolation；Described pole plate controller 34 is electrically connected on positive plate 31 and minus plate 34.

Charged wear particle flows into electric field froth breaking module 3 with fluid with speed V, electric field is centrifuged the positive plate 31 of module 3, minus plate 32 is controlled by pole plate controller 34, produce the uniform electric field vertical with speed V direction, the most charged wear particle in electric field is centrifuged module 3 by being perpendicular to the acting on of electric field force of velocity attitude, making charged particle do parabolic motion to pole plate under this force, charged corpuscle adsorbs other microgranule along the direction of motion and forms polymeric macroparticle.This parabolic motion specifically refers to charged corpuscle and moves along a straight line axially following fluid, radially then do at the uniform velocity or variable motion under electric field force effect, change electric field intensity by pole plate controller and can change movement velocity, make charged polymeric bulky grain preliminary motion to near-wall.

Refer to Figure of description 4-1 to shown in accompanying drawing 5-2, described mechanical centrifugal module 4 makes fluid under the action of the centrifugal, the magnetized particles that quality is bigger is thrown toward cavity wall, bubble in fluid is then shifted at the central axis of pipeline under centrifugal action, and it can be selected for tangential influent stream centrifugal device, vortex generator centrifugal device, liquid whild-wind generator centrifugal device, elbow type pipe cyclone centrifugal device and eddy flow and is centrifuged module.

Refer to Figure of description 5-1 to shown in accompanying drawing 5-2, described eddy flow is centrifuged module 4 and uses the mode of energy loss, its design principle is as follows: arrange the flow deflector of the distortion of certain altitude and length in the duct, and make blade face tangent line angled with axis, fluid can be made to produce spiral flow in pipes because pipe flow border changes, this spiral flow can be analyzed to the circumferential flow around pipe axle and axial straight flowing, and the particulate matter carried in fluid produces off-axis alignment heart screw.This eddy flow is centrifuged module 4 and is made up of several parts such as eddy flow tube wall the 41, first flow deflector the 42, second flow deflector 43, motor 44 and flow transducers 45, and described motor 44 and flow transducer 45 are electrically connected to ECU10.

Wherein, described first flow deflector 42 is provided with 3, and these 3 first flow deflectors 42 are uniformly distributed along tube wall 41 inner periphery every 120 °, and its laying angle (angle between the first flow deflector 42 and eddy flow tube wall 41) is set to 18 °, to ensure optimal tangential flowing.Described second flow deflector 43 is identical with the first flow deflector 42 structure, after it is arranged on the first flow deflector 42, and and the first flow deflector 42 stagger 60 ° and be connected in tube wall 41, its laying angle is set to 36 DEG C, for reducing resistance and strengthening the intensity of circumferential flow.It addition, the 3rd or more flow deflector can be arranged the most again according to actual separation effect, laying angle gradually increases.Described motor 44 connects and drives the first flow deflector 42 and the second flow deflector 43, to regulate laying angle, thus can obtain more preferable centrifugal effect, knows and makes flow deflector 42,43 adapt to different operating modes.Described flow transducer 45 is arranged on the central authorities in tube wall 41, the ECU10 numerical analysis cyclonic separation effect by reading flow quantity sensor 45, and controlling motor 44 accordingly, motor 44 regulates the laying angle of each flow deflector 42,43, to obtain more separating effect.

Further, the long limit of described first flow deflector 42 is connected with tube wall 41, and minor face 43 extends along the axis of tube wall 41；For reducing resistance, its leading edge frustrates into obtuse；For avoiding streaming, trailing edge is processed into wing；Its height is 0.4 times of tube wall 41 diameter, makes the spiral flow of formation have bigger intensity；1.8 times of a length of tube wall 41 diameter, to ensure the bigger sphere of action to fluid.

Referring to shown in Figure of description 6, described adsorption module 5 is gathered in the big microgranule of polymerization of near-wall after mechanical centrifugal module 4 is centrifugal for absorption.When described adsorption module 5 uses homopolarity adjacent type absorbing ring, this homopolarity adjacent type absorbing ring is made up of parts such as aluminium ring shape pipeline 51, forward solenoid 52, reverse solenoid 53 and irony magnetic conduction caps 54.Wherein, described forward solenoid 52 and reverse solenoid 53 are respectively arranged in aluminium ring shape pipeline 51 and by ECU10 control, and both are connected with electric current in opposite direction so that forward solenoid 52 and reverse solenoid 53 adjacent produce like pole.Described irony magnetic conduction cap 54 is arranged on the inwall of aluminium ring shape pipeline 51, and it is positioned at forward solenoid 52 and reverse solenoid 53 adjacent and forward solenoid 52 and the intermediate point of reverse solenoid 53 axis.

The design principle of described homopolarity adjacent type absorbing ring is as follows: have the energization solenoid of multiple ribbon core, adjacent solenoid coil to be connected with electric current in opposite direction inside absorbing ring so that forward solenoid and reverse solenoid adjacent produce like pole.Simultaneously, irony magnetic conduction cap it is provided with at the absorbing ring inwall of forward solenoid and reverse solenoid adjacent and forward solenoid and reverse solenoid axis intermediate point, parallel with absorbing ring axis in strip, the shell of absorbing ring is paramagnetism aluminum matter outer tube wall, this set is conducive to improving magnetic circuit, strengthen the magnetic field intensity at absorbing ring inwall, strengthen the capture absorbability to granule.Each solenoid current is directly controlled by ECU, can be different with concentration and change, to obtain optimal adsorption performance according to the size of granule.After having adsorbed, ECU controls electric magnet power-off, and paramagnetism aluminum matter pipeline loses magnetism, and is attached to magnetic polymeric bulky grain on inner-walls of duct and enters adjacent capacitor particulate matter monitoring module with fluid along tube wall.

Refer to Figure of description 7-1 to shown in accompanying drawing 7-4, wear particle situation in described adjacent capacitor particulate matter monitoring module 6 on-line monitoring fluid pressure line.Described adjacent capacitor particulate matter monitoring module 6 is made up of lucite inwall 61, ground shield 62, reception pole plate 63, excitation several parts such as pole plate 64 and outer wall 65.Wherein, described machine glass inner wall 61, ground shield 62 and outer wall 65 in tubular construction, and successively from-inner-to-outer arrange.

The thickness of described machine glass inner wall 61 is 0.5mm, and dielectric constant is the dielectric constant about about 2.1 of 2.5(hydraulic oil), and the dielectric constant of hydraulic oil is close, therefore edge capacitance is fixed value；When lucite inner wall surface piles with magnetization polymeric macroparticle, magnetization polymeric macroparticle, hydraulic oil form mixed dielectric with lucite inwall, sensors edges electric capacity is acted on jointly, the dielectric constant of magnetization polymeric macroparticle is typically larger than 10, it is the several times of the dielectric constant of hydraulic oil and lucite inwall, enough cause the significant change of capacitance sensor edge capacitance, therefore may utilize the change of adjacent capacitive sensors capacitance, thus the anti-minor variations pushing away fluid dielectric constant, and then realize the enforcement to wear particle and monitor.

Adjacent capacitive sensors performance based on electric capacity edge effect depends primarily on penetration depth (penetration depth of electric field line), signal intensity (size of capacitance) and noise suppressed, measurement sensitivity (to change in voltage or the sensitivity of electric field change) and the measurement dynamic range of sensor.The capacitance that existing adjacent capacitive sensors measurement obtains is the faintest, and usually pF level is the least, the most worse to the measurement effect of the medium of the low-ks such as metal particle, therefore promotes sensor output signal strength particularly critical.Meanwhile, signal intensity and penetration depth two indices are conflicting, and this is also that this sensor performance promotes difficult point.

Adjacent capacitive sensors signal intensity and sensor plate area, the distance between polar plate spacing, and sensor and object under test, the dielectric constant of determinand suffers from the biggest relation.Assemble in lucite inner wall surface through magnetization polymerization, centrifugal and adsorption treatment wear particle, the increase of amounts of particles causes the increase of fluid dielectric constant, the particle diameter that aggregation of particles brings increases the increase also making fluid dielectric constant, magnetize simultaneously and also have the function increasing dielectric constant, three acts on simultaneously, has been greatly reinforced signal intensity；And owing to granule is close to organic glass inner wall surface, penetration depth is required almost nil, also solves index collision problem.

Owing to adjacent capacitive sensors output signal strength is the faintest, noise is notable on the impact of measurement result.Generally noise is mainly derived from two aspects, the noise of sensor self and environment noise.Devising ground shield for this to reduce sensor self-noise, the dielectric constant of ground shield 62 is 1.5-2.5, and shielding thickness is preferred, to ensure to measure sensitivity between being 1 to 2 times of adjacent capacitive sensors outer wall 65 thickness.

Described reception pole plate 63, excitation pole plate 64 are embedded in ground shield 62, and are positioned at outside machine glass inner wall 61, form gap magnetic field 66 between the two, are used for detecting aggregated particles 67.Described reception pole plate 63, excitation pole plate 64 all use efficient frontier length and baroque Peano curve structure pole plate layer.In this Peano curve structure pole plate layer, excitation pole plate 63, the curve of reception pole plate 64 composition can travel through all of point in square pole plate layer, obtain a curve being full of whole square pole plate sheaf space.In the case of pole plate aspect is long-pending fixing, this structure has the longest efficient frontier, maximum polar plate area and labyrinth, adds effective polar plate area and pole plate edge, adds sensors edges capacitance, reduce the requirement to external interface circuit sensitivity.Thus can obtain optimum signal intensity, sensor excitation pole plate uses curved edge to it also avoid high sensitivity and the unstability of pole plate corner with receiving pole plate.Further, described reception pole plate 63, excitation pole plate 64 are provided with sealing coat 69 between the two；0.8-1 times that width is lucite inner wall thickness of described sealing coat 69, it effectively can will receive pole plate 63, encourage pole plate 64 to isolate.

One end of described demagnetization module 7 is provided with fluid outlet 9, and it is made up of remanent magnetism sensor and demagnetizer.Due to the existence of hysteresis, after ferromagnetic material is magnetized into saturation, even if cancelling externally-applied magnetic field, the magnetic induction in material still returns less than zero point, needs externally-applied magnetic field demagnetization.In order to prevent magnetic microparticles from entering hydraulic circuit, sensitive to pollution Hydraulic Elements cause damage, and described demagnetization module 7 controls the demagnetization intensity of demagnetizer according to the detected value of demagnetizer exit remanent magnetism sensor.The demagnetization method herein used is electromagnetism demagnetization, and method is the opposing magnetic field by add suitable so that the magnetic induction in material comes back to zero point, and magnetic field intensity or electric current must invert in order and gradually reduce.

Referring to shown in Figure of description 8, described wear particle on-Line Monitor Device farther includes described ECU10, the PIC16F877 of its optional Microchip company.Described remanent magnetism sensor, demagnetizer, heater, cooler, temperature sensor, electrification module 2, electric field are centrifuged module 3, mechanical centrifugal module 4, adsorption module 5 and adjacent capacitor particulate matter monitoring module 6 and are all electrically connected on ECU10, and by ECU10 control.

Wear particle in using above-mentioned wear particle on-Line Monitor Device to have hydraulic pressure is monitored and is included following method:

1), the fluid in fluid pressure line carries wear particle and passes through temperature control module, controls oil liquid temperature by temperature control module constant at 42 DEG C；

2), the fluid being adjusted to most preferably magnetize temperature carries wear particle entrance electrification module 2, and electrification module 2 makes the wear particle in fluid charged；

3), charged wear particle is initial centrifugation in electric field is centrifuged module 3, makes charged polymeric granule preliminary motion to near-wall；

4), mechanical centrifugal module 4 carries out secondary centrifuging to charged wear particle, makes charged polymeric granule move further into near-wall；

5), adsorption module 5 adsorbs the magnetization polymer particle being gathered in near-wall after mechanical centrifugal module 4 is centrifugal；Adsorption module 5 power-off afterwards, makes the magnetic polymeric bulky grain being attached on tube wall enter adjacent capacitor particulate matter monitoring module 6 with fluid along tube wall；

6), by wear particle situation in adjacent capacitor particulate matter monitoring module 6 on-line monitoring fluid pressure line；

7), demagnetization module 7 gives magnetized particles demagnetization, prevents magnetic microparticles from entering hydraulic circuit, and sensitive to pollution Hydraulic Elements cause damage.

Above detailed description of the invention is only the preferred embodiment of this creation, and not in order to limit this creation, all any modification, equivalent substitution and improvement etc. done within this spirit created and principle, within should be included in the protection domain of this creation.

Claims (9)

1. by electrification, the absorption of automatically controlled ring and the wear particle on-Line Monitor Device of adjacent capacitor, it is characterised in that: include that temperature control module, electrification module, electric field are centrifuged module, mechanical centrifugal module, adsorption module, adjacent capacitor particulate matter monitoring module and demagnetization module；Wherein, described temperature control module, electrification module, electric field are centrifuged module, mechanical centrifugal module, adsorption module, adjacent capacitor particulate matter monitoring module and demagnetization module and are sequentially connected with；One end of described temperature control module is provided with fluid entrance；Described adsorption module uses homopolarity adjacent type absorbing ring；Described homopolarity adjacent type absorbing ring includes aluminium ring shape pipeline, forward solenoid, reverse solenoid and irony magnetic conduction cap；Described forward solenoid and reverse solenoid are respectively arranged in aluminium ring shape pipeline, and both are connected with electric current in opposite direction so that forward solenoid and reverse solenoid adjacent produce like pole；Described irony magnetic conduction cap is arranged on the inwall of aluminium ring shape pipeline, and it is positioned at forward solenoid and reverse solenoid adjacent and forward solenoid and the intermediate point of reverse solenoid axis.

Electrification the most as claimed in claim 1, the absorption of automatically controlled ring and the wear particle on-Line Monitor Device of adjacent capacitor, it is characterised in that: described temperature control module includes heater, cooler and temperature sensor；Described heater uses the lubricating oil heater of the Chongqing gold letter of band temperature detection；Remover for surface evaporation type air cooling selected by described cooler, and the finned tube of cooler selects KLM type finned tube；Temperature sensor uses platinum resistance temperature sensor.

Electrification the most as claimed in claim 1, the absorption of automatically controlled ring and the wear particle on-Line Monitor Device of adjacent capacitor, it is characterised in that: described electrification module includes some electrodes and an electrode controller；Described some electrodes are respectively connecting to electrode controller, and by electrode controller control.

Electrification the most as claimed in claim 1, the absorption of automatically controlled ring and the wear particle on-Line Monitor Device of adjacent capacitor, it is characterised in that: described electric field is centrifuged module and includes positive plate, minus plate, insulating tape and pole plate controller；Wherein, described positive plate and minus plate are in being oppositely arranged, and described insulating tape is between positive plate, minus plate, and by positive plate and minus plate electrical isolation；Described pole plate controller is electrically connected on positive plate and minus plate.

Electrification the most as claimed in claim 1, the absorption of automatically controlled ring and the wear particle on-Line Monitor Device of adjacent capacitor, it is characterised in that: described mechanical centrifugal module uses tangential influent stream centrifugal device, vortex generator centrifugal device, liquid whild-wind generator centrifugal device, elbow type pipe cyclone or eddy flow to be centrifuged module.

Electrification the most as claimed in claim 5, the absorption of automatically controlled ring and the wear particle on-Line Monitor Device of adjacent capacitor, it is characterised in that: described eddy flow is centrifuged module and includes eddy flow tube wall, the first flow deflector, the second flow deflector, motor and flow transducer；Wherein, described first flow deflector is provided with 3, and these 3 first flow deflectors are uniformly distributed along tube wall inner periphery every 120 °, and its laying angle is set to 18 °；Described second flow deflector and the first flow deflector structure are identical, after it is arranged on the first flow deflector, and and the first flow deflector stagger 60 ° and be connected in tube wall, its laying angle is set to 36 DEG C；The long limit of described first flow deflector is connected with tube wall, and minor face extends along the axis of tube wall；Its leading edge frustrates into obtuse, and trailing edge is processed into wing, and its height is 0.4 times of tube wall diameter, 1.8 times of a length of tube wall diameter；Described motor connects and drives the first flow deflector and the second flow deflector, to regulate laying angle；Described flow transducer is arranged on the central authorities in tube wall.

Electrification the most as claimed in claim 1, the absorption of automatically controlled ring and the wear particle on-Line Monitor Device of adjacent capacitor, it is characterised in that: described adjacent capacitor particulate matter monitoring module includes organic glass inner wall, ground shield, reception pole plate, excitation pole plate and outer wall；Wherein, described machine glass inner wall, ground shield and outer wall in tubular construction, and successively from-inner-to-outer arrange；The thickness of described machine glass inner wall is 0.5mm, and dielectric constant is 2.5；The dielectric constant of described ground shield is 1.5-2.5, and thickness is 1 to 2 times of outer wall thickness；Described reception pole plate, excitation pole plate are embedded in ground shield, and are positioned at outside machine glass inner wall；Described reception pole plate, excitation pole plate all use Peano curve structure pole plate layer, are provided with sealing coat between the two；The width of described sealing coat is 0.8-1 times of lucite inner wall thickness.

Electrification the most as claimed in claim 1, the absorption of automatically controlled ring and the wear particle on-Line Monitor Device of adjacent capacitor, it is characterised in that: one end of described demagnetization module is provided with fluid outlet, and it is made up of remanent magnetism sensor and demagnetizer.

Electrification the most as claimed in claim 1, the absorption of automatically controlled ring and the wear particle on-Line Monitor Device of adjacent capacitor, it is characterized in that: it farther includes an ECU, described remanent magnetism sensor, demagnetizer, heater, cooler, temperature sensor, electrification module, electric field are centrifuged module, mechanical centrifugal module, adsorption module and adjacent capacitor particulate matter monitoring module and are all electrically connected on ECU, and by ECU control.