CN105971983A - Filter method utilizing working condition self-adaptive filtering, magnetization, adsorption and rotating magnetic field - Google Patents

Abstract

The invention relates to a filter method utilizing working condition self-adaptive filtering, magnetization, adsorption and a rotating magnetic field. The filter method is characterized in that the pressure/flow pulsation of hydraulic oil is reduced through a filter, and a working condition self-adaptive filter is adopted; solid particles are separated through a U-shaped particle separation module, the solid particles in the oil move towards a tube wall, the oil at the tube wall enters an oil return cylinder through an oil return cylinder oil inlet tube and flows back to an oil tank, and the oil which contains a trace of small-particle size particles and is in the center of a pipeline enters an inner cylinder through an inner cylinder oil inlet tube to be subjected to high-precision filtering, so that the service life of a filter element is prolonged; the oil entering the inner cylinder oil inlet tube flows into a spiral runner of the inner cylinder in a tangential flowing manner, the inner cylinder wall is the filter element, a filtrate flows tightly close to the filter element under the action of centrifugal force and quickly flows parallel to the surface of the filter element, and the filtered hydraulic oil flows into an outer cylinder in the direction vertical to the surface of the filter element; and pollutant particles depositing at the bottom of the inner cylinder can be regularly discharged into the oil return cylinder through an electrically controlled check valve, so that the service life of the filter element is prolonged.

Description

With operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field

[technical field]

The present invention relates to a kind of hydraulic oil filtering method, be specifically related to one operating mode adaptive-filtering, magnetize, adsorb and The filter method of rotating excitation field, belongs to technical field of hydraulic equipment.

[background technology]

Statistics both domestic and external show, the fault of hydraulic system about 70%～85% is owing to oil contamination causes 's.Solid particle is then the pollutant the most universal in oil contamination, damaging effect is maximum.The liquid caused by solid grain contamination The pressure system failure accounts for the 70% of gross contamination fault.In particulate pollutant in hydraulic system oil liquid, metal filings accounting exists Between 20%～70%.Adopt an effective measure the solid grain contamination filtering in fluid, be the pass of Pollution Control in Hydraulic System Key, is also the Reliable guarantee of system safety operation.

Filter is the key element that hydraulic system filters solid grain contamination.Solid particle pollution in hydraulic oil Thing, outside the precipitable a part of larger particles of oil removal box, filters mainly by oil-filtering apparatus.Especially high pressure filtering device, mainly It is used for filtering the hydraulic oil of flow direction control valve and hydraulic cylinder, to protect the Hydraulic Elements of this kind of contamination resistance difference, therefore to liquid The cleannes of force feed require higher.

But, the high pressure filter that existing hydraulic system uses has the disadvantage that (1) all kinds of Hydraulic Elements are to fluid Cleannes require different, the size of the solid particle in fluid is the most different, for this need in hydraulic system Diverse location install multiple dissimilar wave filter, thus bring cost and install complexity problem；(2) hydraulic system In filter mainly use cake filtration mode, during filtration filtrate be perpendicular to filter element surface flowing, trapped solid Microgranule forms filter cake progressive additive, and the rate of filtration is gradually reduced the most therewith until filtrate stops flowing out, and reduces filter element Service life.

Therefore, for solve above-mentioned technical problem, the use operating mode adaptive-filtering of a kind of innovation of necessary offer, magnetization, Absorption and the filter method of rotating excitation field, to overcome described defect of the prior art.

[summary of the invention]

For solving above-mentioned technical problem, it is an object of the invention to provide a kind of strainability good, adaptability and integration Height, service life length with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field.

For achieving the above object, the technical scheme that the present invention takes is: with operating mode adaptive-filtering, magnetizes, adsorb and revolves Turn the filter method in magnetic field, it is characterised in that: it uses a kind of Rose Box, and this Rose Box includes base plate, wave filter, U-shaped microgranule Separation module, oil returning tube, inner core, helical flow path, filter element, outer barrel and end cap；Wherein, described wave filter, U-shaped separation of particles mould Block, oil returning tube, outer barrel are sequentially placed on base plate；Described wave filter includes input pipe, shell, outlet tube, elastic thin-wall, plug-in type H mode filter and plug-in type cascaded H mode filter；Described input pipe is connected to one end of shell, itself and a hydraulic oil inlet Docking；Described outlet tube is connected to the other end of shell, and itself and U-shaped separation of particles module are docked；Described elastic thin-wall is along shell Radial direction be installed in shell；Described input pipe, outlet tube and elastic thin-wall are collectively forming a c-type cavity volume wave filter；Described bullet Property thin-walled and shell between form resonance series cavity volume I, resonance series cavity volume II and parallel resonance cavity volume；Described resonance series Separated by an elastic baffle between cavity volume I and resonance series cavity volume II；Uniformly have some in the axial direction of described elastic thin-wall Conical damping hole；Uniformly having some tapers in the axial direction of described elastic baffle and insert pipe, pipe connection series connection is inserted in described taper Resonance cavity volume I and resonance series cavity volume II；Described plug-in type H mode filter is positioned at parallel resonance cavity volume, and itself and taper damp Hole is connected；Described plug-in type cascaded H mode filter is positioned at resonance series cavity volume I and resonance series cavity volume II, and it also and is bored Shape damping hole is connected；Described plug-in type H mode filter and plug-in type cascaded H mode filter are axially symmetrical set, and form Plug-in type connection in series-parallel H mode filter；Described U-shaped separation of particles module includes a U-tube, and U-tube is sequentially installed with temperature control mould Block, magnetized module, the first adsorption module, rotating excitation field are centrifuged module, the second adsorption module and demagnetization module；Described U-shaped micro- The top of grain separation module and oil returning tube is connected by an oil returning tube oil inlet pipe；Described inner core is placed in outer barrel, and it is by a top If plate and bolt stem are installed on end cap；Described helical flow path is contained in inner core, logical between itself and U-shaped separation of particles module Cross an inner core oil inlet pipe to connect；Described inner core oil inlet pipe is positioned at oil returning tube oil inlet pipe, and extends into U-shaped separation of particles module Central authorities, its diameter is less than oil returning tube oil inlet pipe diameter, and is coaxially disposed with oil returning tube oil inlet pipe；Described filter element is arranged on inner core On inwall, its precision is 1-5 micron；The bottom of said tub is provided with a hydraulic oil oil-out；

It comprises the steps:

1), the fluid in fluid pressure line passes through wave filter, the arteries and veins of the high, medium and low frequency range in filter attenuation hydraulic system Dynamic pressure, and suppression flowed fluctuation；

2), backflow force feed enters the temperature control module of U-shaped separation of particles module, by temperature control module regulation oil temperature to optimal Magnetization temperature 40-50 DEG C, enter magnetized module afterwards；

3), by magnetized module, oil return is magnetized, make micron-sized metallic particles aggregate into bulky grain, deliver to afterwards First adsorption module；

4), by the magnetic polymeric microgranule in the first adsorption module absorption oil return, oil return afterwards is delivered to rotating excitation field and is centrifuged Module；

5), rotating excitation field is centrifuged module and utilizes rotating excitation field to separate unadsorbed magnetic microparticles, and oil return afterwards delivers to second Adsorption module；

6), the magnetic polymeric microgranule in the second adsorption module second adsorption oil return；

7), magnetic particle magnetic is eliminated by demagnetization module；

8), the fluid of the most U-shaped separation of particles module near-wall refluxes after entering oil returning tube by oil returning tube oil inlet pipe To fuel tank, the fluid of the pipeline center containing trace small particle microgranule then enters inner core by inner core oil inlet pipe and carries out high-precision spending Filter；

9), the fluid carrying small particle microgranule flows into the helical flow path of inner core in the way of tangential influent stream, and fluid is centrifugal It is close to filter core flow under the effect of power, and carries out high-precision filtration；

10), the fluid after high-precision filtration enters urceolus, and is discharged by the hydraulic oil oil-out bottom urceolus.

The present invention with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field is further: described defeated Enter the axis of pipe and outlet tube the most on the same axis；The described wider place of conical damping hole opening be positioned at resonance series cavity volume I and In parallel resonance cavity volume, its taper angle is 10 °；Described taper is inserted the wider place of tube opening and is positioned at resonance series cavity volume II, its Taper angle is 10 °；Described taper is inserted the position of pipe and conical damping hole and is mutually staggered；The inner side of described elastic thin-wall is provided with one Colloid damping layer；The internal layer of described colloid damping layer and outer layer are respectively outer layer elastic thin-wall and internal layer elastic thin-wall, outer layer bullet Property thin-walled and internal layer elastic thin-wall between connected by some pillars are fixing；Between described outer layer elastic thin-wall and internal layer elastic thin-wall Interlayer in be filled with the pure water adding antifreezing agent, be suspended with Bio-sil in pure water；Described colloid damping layer is near output One end of pipe is connected with shell；Described colloid damping layer is provided with a piston near one end of outlet tube.

The present invention with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field is further: described temperature Control module includes heater, cooler and temperature sensor；Described heater uses the lubrication of the Chongqing gold letter of band temperature detection Oil heater；Remover for surface evaporation type air cooling selected by described cooler, and the finned tube of cooler selects KLM type finned tube；Temperature sensing Device uses platinum resistance temperature sensor.

The present invention with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field is further: described magnetic Change module and include aluminum matter pipeline, some windings, iron shell, flange and some magnetizing current output modules；Wherein, if described Dry winding is rotating around outside aluminum matter pipeline, and each winding is made up of positive winding and inverse winding；Described iron shell is coated on aluminum matter pipe On road；Described flange welding is at the two ends of aluminum matter pipeline；Each magnetizing current output module is connected to a winding.

The present invention with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field is further: described One adsorption module and the second adsorption module all use homopolarity adjacent type absorbing ring, this homopolarity adjacent type absorbing ring to include aluminium ring shape Pipeline, forward solenoid, reverse solenoid and irony magnetic conduction cap；Described forward solenoid and reverse solenoid be respectively arranged in In aluminium ring shape pipeline, both are connected with electric current in opposite direction so that forward solenoid and reverse solenoid adjacent produce same Property magnetic 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 present invention with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field is further: described One adsorption module and the second adsorption module all use the homopolarity adjacent type absorbing ring of charged hammer, and the homopolarity of this charged hammer is adjacent Type absorbing ring includes aluminium ring shape pipeline, forward solenoid, reverse solenoid, irony magnetic conduction cap, dividing plate, electric shock hammer and electromagnetism Ferrum；Described forward solenoid and reverse solenoid are respectively arranged in aluminium ring shape pipeline, and both are connected with electric current in opposite direction, Forward solenoid and reverse solenoid adjacent is made to produce like pole；Described irony magnetic conduction cap is arranged in aluminium ring shape pipeline Inwall on, it is positioned at forward solenoid and reverse solenoid adjacent and forward solenoid and reverse solenoid axis Intermediate point；Described dividing plate is between forward solenoid and reverse solenoid；Described electric shock hammer and electric magnet are between dividing plate； Described electric magnet connects and can promote electric shock hammer, makes electric shock hammer tap aluminium ring shape inner-walls of duct.

The present invention with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field is further: described rotation Turn magnetic field to be centrifuged module and include aluminum matter pipeline, iron shell, three-phase symmetric winding, flange and three-phase symmetrical current module；Institute State three-phase symmetric winding to be wound on outside aluminum matter pipeline；Described iron shell is coated on aluminum matter pipeline；Described flange welding is in aluminum matter The two ends of pipeline；Described three-phase symmetrical current module connects described three-phase symmetric winding.

The present invention with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field is further: described time The bottom of oil cylinder is provided with an overflow valve, is provided with an automatically controlled set screw bottom this overflow valve；Described overflow valve is provided with an oil extraction Mouthful, this oil drain out is connected to a fuel tank by pipeline.

The present invention with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field is further: in described The bottom of cylinder is rounding mesa-shaped, and it is connected by an inner core oil exit pipe and oil returning tube, and inner core oil exit pipe is provided with an automatically controlled non-return Valve.

The present invention with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field is also: described inner core Center upright is provided with a hollow cylinder, hollow cylinder be arranged over pressure difference indicator, this pressure difference indicator is installed on end cap； Described inner core oil inlet pipe and the tangent connection of helical flow path.

Compared with prior art, there is advantages that

1. pulsed by the pressure/flow of filter attenuation hydraulic oil, make filter element not vibrate, to improve Strainability；Hydraulic oil realizes the separation of solid particle in U-shaped separation of particles module, makes the solid particle in fluid to tube wall Motion, at U-shaped separation of particles module outlet, the fluid rich in the near-wall of solid particle is entered by oil returning tube oil inlet pipe Fuel tank it is back to, in only the fluid of the pipeline center containing trace small particle microgranule is then entered by inner core oil inlet pipe after oil returning tube Cylinder carries out high-precision filtration, improves the service life of filter element, reduces filtering cost and complexity；Enter inner core oil inlet pipe Fluid in the way of tangential influent stream, flow into the helical flow path of inner core, inner tube wall is filter element, then filtrate is under the influence of centrifugal force Being close to filter core flow, filtrate is parallel to the surface of filter element and quickly flows, and the hydraulic oil after filtration is then perpendicular to cartridge surface direction Flowing out to urceolus, the microgranule of cartridge surface is implemented to sweep stream effect by this cross flow filter type, it is suppressed that the increasing of filter cake thickness Add, be deposited on the pollution granule bottom inner core and regularly can be discharged to oil returning tube by automatically controlled check-valves, thus improve filter element and use Life-span.

2., by controlling the temperature of hydraulic oil and magnetic field intensity, make that the granule in fluid is force-magnetized is gathered into bulky grain, And promote colloidal particles decomposition to melt, form efficient absorption by adsorption module, by degaussing gear, residual particles demagnetization is kept away Exempt to endanger Hydraulic Elements, so that solid particle is gathered into bulky grain and moves to near-wall in fluid.

3. the generation of non-uniform magnetic-field that magnetization needs, need multipair forward and reverse coil to and pass through different size of electric current, And current values can numeral set online.

[accompanying drawing explanation]

Fig. 1 be the present invention with operating mode adaptive-filtering, magnetize, adsorb and the structural representation of Rose Box of rotating excitation field Figure.

Fig. 2 is the structural representation of the wave filter in Fig. 1.

Fig. 3 is the profile in Fig. 2 along A-A.

Fig. 4 is plug-in type H mode filter schematic diagram in Fig. 3.

Fig. 5 is plug-in type cascaded H mode filter schematic diagram in Fig. 3.

Fig. 6 is plug-in type H mode filter and plug-in type cascaded H mode filter frequency characteristic constitutional diagram.Wherein, solid line is slotting Enter formula cascaded H mode filter frequency characteristic.

Fig. 7 is plug-in type connection in series-parallel H mode filter frequency characteristic figure.

Fig. 8 is the structural representation of c-type cavity volume wave filter.

Fig. 9 is the cross sectional representation of elastic thin-wall.

Figure 10 is the Longitudinal cross section schematic of colloid damping layer.

Figure 11 is the schematic diagram of the U-shaped separation of particles module in Fig. 1.

Figure 12 is the structural representation of the magnetized module in Figure 11.

Figure 13 is the structural representation of the winding in Figure 12.

Figure 14 is the circuit diagram of the magnetizing current output module in Figure 12.

Figure 15 is the structural representation that the first adsorption module (the second adsorption module) is homopolarity adjacent type absorbing ring of Figure 11.

Figure 16 is the homopolarity adjacent type absorbing ring that the first adsorption module (the second adsorption module) is charged hammer in Figure 11 Structural representation.

Figure 17 is the structural representation that the rotating excitation field in Figure 11 is centrifuged module.

[detailed description of the invention]

Referring to shown in Figure of description 1 to accompanying drawing 17, the present invention is one operating mode adaptive-filtering, magnetizes, adsorbs With the Rose Box of rotating excitation field, it is by base plate 6, wave filter 8, U-shaped separation of particles module 3, oil returning tube 7, inner core 15, helical flow path 17, several parts such as filter element 18, outer barrel 19 and end cap 25 composition.Wherein, described wave filter 8, U-shaped separation of particles module 2, oil return Cylinder 7, outer barrel 19 are sequentially placed on base plate 6.

Described wave filter 8 is for inputting hydraulic oil, and the pulsation pressure of the high, medium and low frequency range that can decay in hydraulic system Power, and suppression flowed fluctuation.Described wave filter 8 is by input pipe 81, shell 89, outlet tube 811, elastic thin-wall 87, plug-in type H type Several parts compositions such as wave filter 812 and plug-in type cascaded H mode filter 813.

Wherein, described input pipe 81 is connected to one end of shell 89, and itself and a hydraulic oil inlet 1 are docked；Described outlet tube 811 other ends being connected to shell 89, itself and U-shaped separation of particles module 3 are docked.Described elastic thin-wall 87 is pacified along the radial direction of shell It is loaded in shell 89.The axis of described input pipe 81 and outlet tube 811 the most on the same axis, so can improve more than 10% Filter effect.

Described input pipe 81, outlet tube 811 and elastic thin-wall 87 are collectively forming a c-type cavity volume wave filter, thus liquid of decaying Pressure system high-frequency pressure fluctuation.The filter transmission coefficient obtained after processing by lumped-parameter method is:

$\mathrm{\γ}=\frac{1}{1+{(\frac{2\mathrm{\π}f}{Z}\·\frac{S_V{L}_V}{S_{I}a})}^2}$

Velocity of sound L in a medium_VC-type cavity volume length S_VC-type cavity volume volume Z characteristic impedance

γ transmission coefficient f pressure oscillation frequency S_IInput pipe cross-sectional area.

From above formula, when the pressure pulse wave of different frequency is by this wave filter, transmission coefficient is different with frequency.Frequently Rate is the highest, then transmission coefficient is the least, and this shows that the pressure pulse wave of high frequency is decayed the most severe when device after filtering, thus rises Arrive the effect eliminating high frequency pressure pulsations.

The design principle of described c-type cavity volume wave filter is as follows: when in pipeline, the fluctuating frequency of pressure is higher, the pressure of fluctuation Act on convection cell on fluid and produce pinch effect.When the flow of change enters c-type cavity volume by input pipe 81, liquid stream exceedes Average discharge, the cavity volume of expansion can absorb unnecessary liquid stream, and releases liquid stream when less than average discharge, thus absorption pressure arteries and veins Energy.

Described elastic thin-wall 87 weakens hydraulic system medium-high frequency pressure fluctuation by being forced to mechanical vibration.By lumped parameter The elastic thin-wall natural frequency that method obtains after processing is:

$f_m=\frac{k^{2}h}{2{\mathrm{\πR}}^2}\·\sqrt{\frac{E}{12\mathrm{\ρ}(1+\mathrm{\η})(1-{\mathrm{\μ}}^2)}}$

K elastic thin-walled structures coefficient h elastic thin-wall thickness R elastic thin-wall radius

The mass density of the Young's modulus ρ elastic thin-wall of E elastic thin-wall

The Poisson's ratio of the current-carrying factor mu elastic thin-wall of η elastic thin-wall.

Substitute into actual parameter, above formula is carried out simulation analysis it is found that the natural frequency generally ratio H type of elastic thin-wall 87 The natural frequency of wave filter is high, and its attenuation band is also wide than H mode filter.In relatively wide frequency band range, elastic Thin-walled has good attenuating to pressure fluctuation.Meanwhile, the elastic thin-wall radius in the filter construction of the present invention is bigger And relatively thin, its natural frequency, closer to Mid Frequency, can realize the effective attenuation to the medium-high frequency pressure fluctuation in hydraulic system.

The design principle of described elastic thin-wall 87 is as follows: when producing intermediate frequency pressure fluctuation in pipeline, c-type cavity volume is to pressure wave Dynamic damping capacity is more weak, flows into the periodically pulsing pressure continuous action of wave filter c-type cavity volume inside and outside elastic thin-wall 87 On wall, elastic thin-wall 87 does periodic vibration by the frequency of fluctuation pressure, and this forced vibration consumes the pressure fluctuation energy of fluid Amount, thus realize the filtering of Mid Frequency pressure.From the principle of virtual work, elastic thin-wall consumes the ability of fluid pulsation pressure energy Directly related with potential energy during its forced vibration and kinetic energy sum, in order to improve Mid Frequency filtering performance, the radius of elastic thin-wall Being designed much larger than pipe radius, and the thickness of thin-walled is less, representative value is less than 0.1mm.

Further, resonance series cavity volume I84, resonance series cavity volume are formed between described elastic thin-wall 87 and shell 89 II83 and parallel resonance cavity volume 85, described cavity volume 83,84,85 is across whole wave filter, it is hereby achieved that bigger resonance Cavity volume volume, strengthens attenuating.By an elastic baffle between described resonance series cavity volume I84 and resonance series cavity volume II5 810 separate.Uniformly having some conical damping holes 86 in the axial direction of described elastic thin-wall 87, described conical damping hole 86 opening is relatively Wide place is positioned at resonance series cavity volume I84 and parallel resonance cavity volume 85, and its taper angle is 10 °.Described elastic baffle 810 axial On uniformly have some tapers insert pipe 82, described taper insert pipe 82 connect resonance series cavity volume I84 and resonance series cavity volume II83.Described taper is inserted the wider place of pipe 82 opening and is positioned at resonance series cavity volume II83, and its taper angle is 10 °, described taper Mutually stagger in the position inserting pipe 82 and conical damping hole 86.

Described plug-in type H mode filter 812 is positioned at parallel resonance cavity volume 85, and it is connected with conical damping hole 86.Press The wave filter natural angular frequency that lumped-parameter method obtains after processing is:

${\mathrm{\ω}}_r=a\sqrt{\frac{S}{L(V-LS)}}(rad/s)---\left(1\right)$

Velocity of sound L damping hole long S damping hole cross-sectional area V parallel resonance cavity volume volume in a medium.

Described plug-in type cascaded H mode filter 813 is positioned at resonance series cavity volume I84 and resonance series cavity volume II83, its Also it is connected with conical damping hole 86.After processing by lumped-parameter method, two natural angular frequencies of wave filter are:

${\mathrm{\ω}}_1=\frac{\sqrt{\mathrm{\π}}a}{\sqrt{2}\sqrt{k_1+k_2+\sqrt{{\[k_1-k_2\]}^2+\frac{4{(V_4-\frac{1}{4}{{\mathrm{\πd}}_3}^2{l}_3)}^2{l}_1{l}_3}{d_1^2{d}_3^2}}}}---\left(2\right)$

${\mathrm{\ω}}_2=\frac{\sqrt{\mathrm{\π}}a}{\sqrt{2}\sqrt{k_1+k_2-\sqrt{{\[k_1-k_2\]}^2+\frac{4{(V_4-\frac{1}{4}{{\mathrm{\πd}}_3}^2{l}_3)}^2{l}_1{l}_3}{d_1^2{d}_3^2}}}}---\left(3\right)$

Wherein:

$k_1=\frac{l_1(V_2+V_4-\frac{1}{4}{{\mathrm{\πd}}_1}^2{l}_1-\frac{1}{4}{{\mathrm{\πd}}_3}^2{l}_3)}{{d_1}^2}$

$k_2=\frac{(V_4-\frac{1}{4}{{\mathrm{\πd}}_3}^2{l}_3)l_3}{{d_3}^2}$

Velocity of sound l in a medium₁The long d of damping hole₁Damping hole diameter l₃Insert pipe range

d₃Insert pipe diameter V₂Resonance series cavity volume 1 volume V₄Resonance series cavity volume 2 volume.

Described plug-in type H mode filter 812 and plug-in type cascaded H mode filter 813 are axially symmetrical set, and form slotting Enter formula connection in series-parallel H mode filter, for broadening frequency filtering scope and make overall structure more compact.The present invention divides at circumferentially interface The multiple plug-in type connection in series-parallel H mode filters (only depicting 2 in figure) of cloth, separate with dividing plate 820 each other.

By Fig. 6 plug-in type H mode filter and plug-in type cascaded H mode filter frequency characteristic and formula (1) (2) (3) Finding, plug-in type cascaded H mode filter has 2 natural angular frequencies, and at crest, filter effect is preferable, the most basic at trough There is no filter effect；Plug-in type H mode filter has 1 natural angular frequency, and at crest, filter effect is preferable equally, and at trough Place does not has filter effect the most substantially；Select suitable filter parameter, make the natural angular frequency of plug-in type H mode filter just fall Between 2 natural angular frequencies of plug-in type cascaded H mode filter, as it is shown in fig. 7, both define in certain frequency range The natural reonant frequency peak value of 3 next-door neighbours, in this frequency range, no matter the fluctuating frequency of pressure is at crest or at trough All can guarantee that preferable filter effect.Multiple plug-in type connection in series-parallel H mode filters constitute bank of filters both can cover whole in Low-frequency range, it is achieved the entire spectrum filtering of medium and low frequency section.

Further, the inner side of described elastic thin-wall 87 is provided with colloid damping layer 88.Described colloid damping layer 88 interior Layer and outer layer are respectively outer layer elastic thin-wall 871 and internal layer elastic thin-wall 872, outer layer elastic thin-wall 871 and internal layer elastic thin-wall Connected by some pillars 814 are fixing between 872.Fill in interlayer between outer layer elastic thin-wall 871 and internal layer elastic thin-wall 872 There is the pure water 816 adding antifreezing agent, in pure water 816, be suspended with Bio-sil 815.Described colloid damping layer 88 is near outlet tube One end of 811 is connected with shell 89；Described colloid damping layer 88 is additionally provided with a piston 817 near one end of outlet tube 811.

Due to outer layer elastic thin-wall 871 with internal layer elastic thin-wall 872 spacing is the least and is connected, in pressure by pillar 814 is fixing When power pulsation acts perpendicularly to thin-walled, inside and outside wall produces and is close to consistent deformation, and colloid damping layer thickness is kept approximately constant, right Pressure fluctuation does not has damping action；The flow pulsation in 817 sensation level directions of piston of colloid damping layer 88, flow pulsation increases Qiang Shi, piston 817 pressurized makes colloid damping layer shrink, and squeezing action makes the water in colloid damping layer 88 logical by nanoscale conveying Road enters micron order central void；When flow pulsation weakens, piston 817 is by back-pressure, and now colloid damping layer expands, and colloid damps Water in Ceng is discharged through passage from central void.In the process, due to mechanics effect, the passage of silica gel 815 microchannel sorption The roughness effect of surface molecular yardstick and chemistry heterogeneous body effect, piston is followed colloid damping layer and is shunk and do in expansion process The interfactial work on " gas-liquid-solid " border, thus flow systolic implementation is decayed, its substantially parallel R mode filter.Should Wave filter is relative to the advantage of general liquid condenser: it is decayed by the way of the interfactial work on " gas-liquid-solid " border Flow pulsation, can absorb a large amount of mechanical energy in the case of not producing heat, and energy expenditure does not relies on piston speed, declines Decreasing effect rate is obviously improved.

Described wave filter can also the pulsation decay of solid line operating mode self-adaptive pressure.When hydraulic system working conditions change, both performed Element stops suddenly or runs, and when the opening of valve changes, the characteristic impedance of pipe-line system can be caused to undergo mutation, so that Former pipeline pressure curve with change in location in time changes the most therewith, then the position of pressure peak also changes.Due to this The axial length of the wave filter of invention is designed as more than system main pressure pulsation wavelength, and the plug-in type connection in series-parallel H of wave filter The cavity volume length of mode filter group, the length of c-type cavity volume wave filter and the length of elastic thin-wall 87 and wave filter axial length phase Deng, it is ensured that pressure peak position is constantly in the effective range of wave filter；And conical damping hole 86 is opened in Thin Elastic On wall 87, being uniformly distributed in the axial direction, the taper uniformly having multiple identical parameters in the axial direction of elastic baffle 810 is inserted Pipe 82, conical damping hole 86 and taper are inserted pipe 82 position and are mutually staggered so that the pressure peak change in location property to wave filter Can have little to no effect, it is achieved thereby that operating mode adaptive-filtering function.In view of three kinds of filter structure axial dimensions and filtering Device is suitable, and this bigger size also ensure that hydraulic filter possesses stronger pressure fluctuation damping capacity.

The method that above-mentioned wave filter carries out hydraulic pulsation filtering is as follows:

1), hydraulic fluid enters c-type cavity volume wave filter by input pipe, and the cavity volume of expansion absorbs unnecessary liquid stream, completes height The filtering of pressure fluctuation frequently；

2), by elastic thin-wall 87 forced vibration, consume the pressure fluctuation energy of fluid, complete the filter of intermediate frequency pressure fluctuation Ripple；

3), by plug-in type connection in series-parallel H mode filter group, insert pipe by conical damping hole, taper and fluid produces altogether Shake, consume pulsation energy, complete the filtering of low frequency pulsation；

4), the axial length of wave filter is designed as more than hydraulic system main pressure pulsation wavelength, and plug-in type string is also Connection H mode filter length, c-type cavity volume filter length and elastic thin-wall 87 length are equal with filter length, make pressure peak Position is constantly in the effective range of wave filter, it is achieved the filtering of pressure fluctuation when system condition changes.

Described U-shaped separation of particles module 3 includes a U-tube 31, and U-tube 31 is sequentially installed with temperature control module 32, magnetization Module the 33, first adsorption module 34, rotating excitation field are centrifuged module the 36, second adsorption module 37 and demagnetization module 35.

Described temperature control module 32 main purpose is to provide optimal magnetization temperature 40-50 DEG C, also for magnetized module 33 simultaneously Having the effect of fluid viscosity reduction concurrently, it includes heater, cooler and temperature sensor.Described heater uses band temperature detection The lubricating oil heater of Chongqing gold letter.Described 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, heat transfer Performance is good, 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, fin in laminating Root weather-resistant performance is high；The bank of tubes number optimum of air cooler is 8.Described temperature sensor uses platinum resistance temperature sensing Device.

Described magnetized module 33 realizes the force-magnetized of metallic particles, and makes micron-sized metallic particles aggregate into big Grain, it is simple to subsequent adsorbtion separates.Magnetized module 32 it is also required to provide non-uniform magnetic-field simultaneously, enters the colloidal particles in hydraulic oil Row magnetization is decomposed, the microgranule making colloid particulate breakup be smaller particle size, pollution abatement.

Described magnetized module 33 is by aluminum matter pipeline 331, some windings 332, iron shell 333, flange 334 and some magnetic Galvanic current output module 335 forms.Wherein, described aluminum matter pipeline 331 makes fluid flow there through and by magnetization treatment, and aluminum Pcrmeability the lowest, can make pipeline 331 obtains higher magnetic field intensity.

Described some windings 332, rotating around outside aluminum matter pipeline 331, are coated insulation by the copper wire of a diameter of about 1.0mm Paint is made.Each winding 332 is all separate setting, is controlled by corresponding magnetizing current output module 335 respectively, Qi Zhong electricity Flow and need different according to system.Separate owing to often enclosing winding 332, its exit can cause the electric current that this coil forms Ring is not real " justifying ", but has individual breach, and this can cause the radial distribution of aluminum matter pipeline 331 internal magnetic field uneven, thus Affect magnetic efficiency.For solving this problem, the often circle winding 332 of this creation is all made up of positive winding 336 and inverse winding 337, mesh Be to produce the magnetic field in same polarity direction and to make up the magnetic field that breach causes unbalanced simultaneously.In positive winding and inverse winding Size of current is equal.Aluminum matter pipeline 331 axis direction is arranged with multipair forward and reverse winding, by different electric currents, in order to shape Become the non-uniform magnetic-field of aforementioned claim.

Described iron shell 333 is coated on aluminum matter pipeline 331, and the material of irony can mask most magnetic flux.Institute State flange 334 and be welded on the two ends of aluminum matter pipeline 331, and by flange flange 334 in U-tube 20.

Each magnetizing current output module 335 is connected to a winding 332, and it utilizes digital potentiometer real time modifying resistance Feature, it is achieved the real-time control of non-uniform magnetic-field.The circuit theory diagrams of described magnetizing current output module 335 can be found in accompanying drawing 5, Its digital potentiometer used is AD5206, has the defeated of 6 passages.Amplifier AD8601 and metal-oxide-semiconductor 2N7002 are real by negative feedback Show the output of high-precision voltage follow.Constant High-current output have employed the high voltage of Texas Instrument (TI), the fortune of big electric current Put OPA 549.

Described first adsorption module 34 is for adsorbing the big microgranule of magnetic polymeric after magnetized module 33 magnetizes, and it can use Homopolarity adjacent type absorbing ring, this homopolarity adjacent type absorbing ring is by aluminium ring shape pipeline 341, forward solenoid 342, reverse solenoid 343 and the parts such as irony magnetic conduction cap 344 composition.Wherein, described forward solenoid 342 and reverse solenoid 343 are respectively arranged In aluminium ring shape pipeline 341, both are connected with electric current in opposite direction so that forward solenoid 342 and reverse solenoid 343 are adjacent Place produces like pole.Described irony magnetic conduction cap 344 is arranged on the inwall of aluminium ring shape pipeline 341, and it is positioned at forward helical Pipe 342 and reverse solenoid 343 adjacent and forward solenoid 342 and the intermediate point of reverse solenoid 343 axis.

The design principle of described homopolarity adjacent type absorbing ring is as follows: energising forward solenoid 342, reverse solenoid 343, phase Adjacent forward solenoid 342, reverse solenoid 343 are connected with electric current in opposite direction so that forward solenoid 342, reverse helical Pipe 343 adjacent produces like pole；Meanwhile, aluminium ring shape pipeline 341 can improve magnetic circuit, strengthens the magnetic field at inner-walls of duct Intensity, strengthens the irony magnetic conduction cap 344 capture absorbability to granule.Each forward solenoid 342, reverse solenoid 343 electric current Can be different with concentration and change, to obtain optimal adsorption performance according to the size of granule.

Further, described first adsorption module 34 may be used without the homopolarity adjacent type absorbing ring of charged hammer, and this is charged The homopolarity adjacent type absorbing ring of hammer is by aluminium ring shape pipeline 341, forward solenoid 342, reverse solenoid 343, irony magnetic conduction The parts compositions such as cap 344, dividing plate 345, electric shock hammer 346 and electric magnet 347.Wherein, described forward solenoid 342 and reverse spiral shell Spool 343 is respectively arranged in aluminium ring shape pipeline 341, and both are connected with electric current in opposite direction so that forward solenoid 342 is with anti- Like pole is produced to solenoid 343 adjacent.Described irony magnetic conduction cap 344 is arranged on the inwall of aluminium ring shape pipeline 341, It is positioned at forward solenoid 342 and reverse solenoid 343 adjacent and forward solenoid 342 and reverse solenoid 343 axis Intermediate point.Described electric shock hammer 346 and electric magnet 347 are between dividing plate 345.Described electric magnet 347 connects and can promote electricity Hammer 346, makes electric shock hammer 346 percussion aluminium ring shape pipeline 342 inwall.

The design principle of the homopolarity adjacent type absorbing ring of described charged hammer is as follows: energising forward solenoid 342, reverse spiral shell Spool 343, adjacent forward solenoid 342, reverse solenoid 343 are connected with electric current in opposite direction so that forward solenoid 342, reverse solenoid 343 adjacent produces like pole；Meanwhile, aluminium ring shape pipeline 341 can improve magnetic circuit, strengthens pipeline Magnetic field intensity at inwall, strengthens the irony magnetic conduction cap 344 capture absorbability to granule.Each forward solenoid 342, reverse spiral shell Spool 343 electric current can be different with concentration and change, to obtain optimal adsorption performance according to the size of granule.And by electric shock The setting of hammer 346, prevents granule bulk deposition at irony magnetic conduction cap 344, affects adsorption effect.Now, by electric magnet 347 Control the inwall of electric shock hammer 346 percussion pipeline 341 so that adsorbed granule scatter to both sides.Meanwhile, pipeline is being cleaned When 341, the percussion of electric shock hammer 346 can also improve cleaning performance.

Described first adsorption module 34 is designed to U-shaped, and when fluid enters U-shaped absorption pipeline, granule is at gravity, centrifugal force Effect under, to side, tube wall moves, and plus magnetic field force effect, moves radially speed and accelerates, and the efficiency of granular absorption is able to Improve；Fluid leave U-shaped absorption pipeline rise time, transport so that the direction that granule is diagonally lower gravity and magnetic field force with joint efforts Dynamic, extend the numerical density time, improve the efficiency of granular absorption.

Described rotating excitation field is centrifuged module 36 and utilizes the centrifugal small magnetic not adsorbed by the first adsorbent equipment 34 of rotating excitation field Changing granule, it is by aluminum matter pipeline 361, iron shell 362, three-phase symmetric winding 363, flange 364 and three-phase symmetrical current-mode Block 365 forms.Described three-phase symmetric winding 363 is wound on outside aluminum matter pipeline 361.Described iron shell 362 is coated on aluminum matter pipeline On 361.Described flange 364 is welded on the two ends of aluminum matter pipeline 361.Described three-phase symmetrical current module 365 connects described three-phase Symmetric winding 363.

The operation principle that described rotating excitation field is centrifuged module 36 is as follows: small magnetization granule not to be adsorbed enters rotary magnetic The centrifugal module 36 in field, three-phase symmetrical current module 365 makes to flow through in three-phase symmetric winding 363 three-phase symmetrical electric current, and this electric current exists Producing rotating excitation field in aluminum matter pipeline 361, magnetized particles is acted on by magnetic field force under rotating excitation field effect, and in this power Spirally advance under effect, simultaneously to vessel wall motion.Therefore, regulation magnetic field intensity can make the granule in fluid from fluid " separate " out, be gathered in aluminum matter pipeline 361 near-wall, it is simple to subsequent adsorbtion captures.

Described second adsorbent equipment 37 is identical with described first adsorbent equipment 34 structure, and function is the most identical with the mechanism of action, It can adsorb rotated magnetic field further and be centrifuged the granule that module 36 separates.

Described demagnetization module 35 gives magnetized particles demagnetization, prevents residual magnetism microgranule from entering hydraulic pressure by oil returning tube oil inlet pipe Loop, sensitive to pollution Hydraulic Elements cause damage.

The top of described U-shaped separation of particles module 3 and oil returning tube 7 is connected by an oil returning tube oil inlet pipe 22；By U-shaped micro- After grain separation module 3 processes, the fluid of U-tube 31 near-wall, rich in aggregated particles, is entered back by oil returning tube oil inlet pipe 22 It is back to fuel tank after oil cylinder 7.

The bottom of described oil returning tube 7 is provided with an overflow valve 8, is provided with an automatically controlled set screw 9 bottom this overflow valve 8；Described Overflow valve 8 is provided with an oil drain out 10, and this oil drain out 10 is connected to a fuel tank 11 by pipeline 20.

Described inner core 15 is placed in outer barrel 19, if it is installed on end cap 25 by a top board 13 and bolt stem 21.Institute State helical flow path 17 to be contained in inner core 15, connected by an inner core oil inlet pipe 12 between itself and U-shaped separation of particles module 3, tool Saying of body, described inner core oil inlet pipe 12 and the tangent connection of helical flow path 17.The fluid of the U-tube 31 pipeline center only granule Han trace Footpath microgranule, enters inner core 15 by inner core oil inlet pipe 12 and realizes high-precision filtration, thus realize solid particle and separate.Further , described inner core oil inlet pipe 12 is positioned at oil returning tube oil inlet pipe 22, and extends into the central authorities of U-shaped separation of particles module 3, its diameter Less than oil returning tube oil inlet pipe 22 diameter, and it is coaxially disposed with oil returning tube oil inlet pipe 22.

Further, the bottom of described inner core 15 is rounding mesa-shaped, and it is connected by an inner core oil exit pipe 23 and oil returning tube 7 Connecing, inner core oil exit pipe 23 is provided with an automatically controlled check-valves 24.The center upright of described inner core 15 is provided with a hollow cylinder 16, hollow Cylinder 16 be arranged over pressure difference indicator 14, this pressure difference indicator 14 is installed on end cap 25.

Described filter element 18 is arranged on the inwall of inner core 15, and its precision is 1-5 micron.

The bottom of said tub 19 is provided with a hydraulic oil oil-out 5, the hydraulic oil that will have been filtered by hydraulic oil oil-out 5 Discharge.

In the present invention, owing to U-shaped separation of particles module 3 is to solid particle separation of polymeric effect in fluid, at U-shaped microgranule In the fluid in separation module 3 exit, the fluid at the center only small particle microgranule Han trace, this part fluid is from inner core oil inlet pipe 12 It is flowed into inner core 15 and carries out high-precision filtration；And the fluid of near-wall is rich in aggregated particles, this part fluid passes through oil returning tube Oil inlet pipe 22 enters oil returning tube 7, then flows back to fuel tank 11 through the oil drain out 10 of overflow valve 8, thus realizes solid particle by particle Footpath shunting filtering.Herein, oil returning tube 7 and overflow valve 8 serve aforesaid macrofiltration, thus save filter number, fall Low system cost and complexity.The automatically controlled set screw 9 of overflow valve 8 is used for regulating oil pressure relief, is adjusted to by its pressure slightly Less than pressure at filtering outlet, to ensure inner core 15 filtering traffic.

It addition, traditional filter mainly uses cake filtration mode, during filtration, filtrate is perpendicular to filter element surface stream Dynamic, trapped solid particle forms filter cake progressive additive, and the rate of filtration is gradually reduced the most therewith, until filtrate stops stream Go out, reduce the service life of filter element.In this present invention, carry the filtrate of small particle microgranule from inner core oil inlet pipe 12 Flowing into the helical flow path 17 of inner core 15 in the way of tangential influent stream, inner core 15 wall of helical duct 17 side is high-precision filter element 18, filtrate is close to filter element 18 surface under the influence of centrifugal force, and filtrate is parallel to the surface of filter element 18 and quickly flows, after filtration Hydraulic oil is then perpendicular to filter element 18 surface direction and flows out to urceolus 19, and the direction of the two flowing is orthogonal staggered, therefore claims it Filter for cross flow.The quickly flowing of filtrate is applied with shearing to the microgranule being gathered in filter element 18 surface and sweeps stream effect, thus presses down Having made the increase of filter cake thickness so that rate of filtration near constant, filter pressure also will not raise with the passing of time, filter element Service life thus increase substantially.Along with the accumulation of filtration time, it is deposited on the pollution granule bottom inner core 15 inverted round stage Being stepped up, the rate of filtration slowly declines, and in inner core 15, unfiltered filtrate rises along the hollow cylinder 16 at center, now, and pressure Difference indicator 14 works, and monitors the change of its pressure, that is the stopping state of filter element 18 bottom inner core 15, if exceeding threshold value, then Regulate automatically controlled set screw 9 and reduce oil pressure relief, and open check-valves 24 simultaneously, make bottom inner core 15 containing more pollution granule Filtrate is discharged to oil returning tube 7 by inner core oil exit pipe 23 under differential pressure action, it is to avoid bottom, filter element 18 blockage deteriorates, from And extend filter element 18 service life.

The processing step using above-mentioned Rose Box to process backflow force feed is as follows:

1), the fluid in fluid pressure line passes through wave filter 8, the high, medium and low frequency range that wave filter 8 is decayed in hydraulic system Fluctuation pressure, and suppression flowed fluctuation；

2), backflow force feed enters the temperature control module 32 of U-shaped separation of particles module 3, regulates oil temperature by temperature control module 32 To optimal magnetization temperature 40-50 DEG C, enter magnetized module 33 afterwards；

3), by magnetized module 33, oil return is magnetized, make micron-sized metallic particles aggregate into bulky grain, send afterwards To the first adsorption module 34；

4), adsorbed the magnetic polymeric microgranule in oil return by the first adsorption module 34, oil return afterwards deliver to rotating excitation field from Core module 36；

5), rotating excitation field is centrifuged module 36 and utilizes rotating excitation field to separate unadsorbed magnetic microparticles, and oil return afterwards delivers to the Two adsorption modules 37；

6), the magnetic polymeric microgranule in the second adsorption module 37 second adsorption oil return；

7), magnetic particle magnetic is eliminated by demagnetization module 35；

8) after, the fluid of the most U-shaped separation of particles module 3 near-wall enters oil returning tube 7 by oil returning tube oil inlet pipe 22 Being back to fuel tank, the fluid of the pipeline center containing trace small particle microgranule then enters inner core 15 by inner core oil inlet pipe 12 to be carried out High-precision filtration；

9), the fluid carrying small particle microgranule flows into the helical flow path 17 of inner core 15 in the way of tangential influent stream, and fluid exists It is close to filter core flow under the effect of centrifugal force, and carries out high-precision filtration；

10), the fluid after high-precision filtration enters urceolus 19, and is discharged by the hydraulic oil oil-out 5 bottom urceolus 19.

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

Claims (10)

1., with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field, it is characterised in that: it uses a kind of mistake Filter box, this Rose Box include base plate, wave filter, U-shaped separation of particles module, oil returning tube, inner core, helical flow path, filter element, outer barrel with And end cap；Wherein, described wave filter, U-shaped separation of particles module, oil returning tube, outer barrel are sequentially placed on base plate；Described wave filter bag Include input pipe, shell, outlet tube, elastic thin-wall, plug-in type H mode filter and plug-in type cascaded H mode filter；Described input Pipe is connected to one end of shell, itself and hydraulic oil inlet docking；Described outlet tube is connected to the other end of shell, and it is with U-shaped Separation of particles module is docked；Described elastic thin-wall is installed in shell along the radial direction of shell；Described input pipe, outlet tube and elasticity Thin-walled is collectively forming a c-type cavity volume wave filter；Resonance series cavity volume I, resonance series is formed between described elastic thin-wall and shell Cavity volume II and parallel resonance cavity volume；Between described resonance series cavity volume I and resonance series cavity volume II by an elastic baffle every Open；Some conical damping holes are uniformly had in the axial direction of described elastic thin-wall；If uniformly having in the axial direction of described elastic baffle Pipe is inserted in dry taper, and pipe connection resonance series cavity volume I and resonance series cavity volume II is inserted in described taper；Described plug-in type H type is filtered Ripple device is positioned at parallel resonance cavity volume, and it is connected with conical damping hole；Described plug-in type cascaded H mode filter is positioned at series connection altogether Shaking in cavity volume I and resonance series cavity volume II, it is also connected with conical damping hole；Described plug-in type H mode filter and plug-in type Cascaded H mode filter is axially symmetrical set, and forms plug-in type connection in series-parallel H mode filter；Described U-shaped separation of particles module bag Include a U-tube, U-tube is sequentially installed with temperature control module, magnetized module, the first adsorption module, rotating excitation field are centrifuged module, Two adsorption modules and demagnetization module；The top of described U-shaped separation of particles module and oil returning tube is by an oil returning tube oil inlet pipe even Connect；Described inner core is placed in outer barrel, if it is installed on end cap by a top board and bolt stem；Described helical flow path is contained in In inner core, connected by an inner core oil inlet pipe between itself and U-shaped separation of particles module；Described inner core oil inlet pipe is positioned at oil returning tube and enters In oil pipe, and extending into the central authorities of U-shaped separation of particles module, its diameter is less than oil returning tube oil inlet pipe diameter, and and oil returning tube enter Oil pipe coaxial is arranged；Described filter element is arranged on the inwall of inner core, and its precision is 1-5 micron；The bottom of said tub is provided with one Hydraulic oil oil-out；

It comprises the steps:

1), the fluid in fluid pressure line passes through wave filter, the pulsation pressure of the high, medium and low frequency range in filter attenuation hydraulic system Power, and suppression flowed fluctuation；

2), backflow force feed enters the temperature control module of U-shaped separation of particles module, by temperature control module regulation oil temperature to optimal magnetic Change temperature 40-50 DEG C, enter magnetized module afterwards；

3), by magnetizing assembly, oil return is magnetized, make micron-sized metallic particles aggregate into bulky grain, deliver to first afterwards Adsorption module；

4), by the magnetic polymeric microgranule in the first adsorption module absorption oil return, oil return afterwards is delivered to rotating excitation field and is centrifuged module；

5), rotating excitation field is centrifuged module and utilizes rotating excitation field to separate unadsorbed magnetic microparticles, and the second absorption is delivered in oil return afterwards Module；

6), the magnetic polymeric microgranule in the second adsorption module second adsorption oil return；

7), magnetic particle magnetic is eliminated by demagnetization module；

8), the fluid of the most U-shaped separation of particles module near-wall is back to oil after entering oil returning tube by oil returning tube oil inlet pipe Case, the fluid of the pipeline center containing trace small particle microgranule then enters inner core by inner core oil inlet pipe and carries out high-precision filtration；

9), the fluid carrying small particle microgranule flows into the helical flow path of inner core in the way of tangential influent stream, and fluid is at centrifugal force It is close to filter core flow under effect, and carries out high-precision filtration；

10), the fluid after high-precision filtration enters urceolus, and is discharged by the hydraulic oil oil-out bottom urceolus.

2. as claimed in claim 1 with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field, its feature It is: the axis of described input pipe and outlet tube is the most on the same axis；The described wider place of conical damping hole opening is positioned at series connection In resonance cavity volume I and parallel resonance cavity volume, its taper angle is 10 °；Described taper is inserted the wider place of tube opening and is positioned at resonance series In cavity volume II, its taper angle is 10 °；Described taper is inserted the position of pipe and conical damping hole and is mutually staggered；Described elastic thin-wall Inner side be provided with colloid damping layer；The internal layer of described colloid damping layer and outer layer are respectively outer layer elastic thin-wall and internal layer is elastic Thin-walled, is connected by some pillars are fixing between outer layer elastic thin-wall and internal layer elastic thin-wall；Described outer layer elastic thin-wall and internal layer It is filled with the pure water adding antifreezing agent in interlayer between elastic thin-wall, in pure water, is suspended with Bio-sil；Described colloid hinders Buddhist nun's layer is connected with shell near one end of outlet tube；Described colloid damping layer is provided with a piston near one end of outlet tube.

3. as claimed in claim 1 with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field, its feature It is: described temperature control module includes heater, cooler and temperature sensor；Described heater uses the Chongqing of band temperature detection The lubricating oil heater of Jin Hong；Remover for surface evaporation type air cooling selected by described cooler, and the finned tube of cooler selects KLM type fin Pipe；Temperature sensor uses platinum resistance temperature sensor.

4. as claimed in claim 1 with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field, its feature It is: described magnetized module includes aluminum matter pipeline, some windings, iron shell, flange and some magnetizing current output modules； Wherein, described some windings are rotating around outside aluminum matter pipeline, and each winding is made up of positive winding and inverse winding；Described iron shell bag It is overlying on aluminum matter pipeline；Described flange welding is at the two ends of aluminum matter pipeline；Each magnetizing current output module is connected to a winding.

5. as claimed in claim 1 with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field, its feature It is: described first adsorption module and the second adsorption module all use homopolarity adjacent type absorbing ring, this homopolarity adjacent type absorbing ring Including aluminium ring shape pipeline, forward solenoid, reverse solenoid and irony magnetic conduction cap；Described forward solenoid and reverse helical Pipe is 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 produces like pole；Described irony magnetic conduction cap is arranged on the inwall of aluminium ring shape pipeline, and it is positioned at forward solenoid With reverse solenoid adjacent and forward solenoid and the intermediate point of reverse solenoid axis.

6. as claimed in claim 1 with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field, its feature Being: described first adsorption module and the second adsorption module all use the homopolarity adjacent type absorbing ring of charged hammer, this band shocks by electricity The homopolarity adjacent type absorbing ring of hammer includes aluminium ring shape pipeline, forward solenoid, reverse solenoid, irony magnetic conduction cap, dividing plate, electricity Hammer and electric magnet；Described forward solenoid and reverse solenoid are respectively arranged in aluminium ring shape pipeline, both sides of being connected with To contrary electric current 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, it is positioned at forward solenoid and reverse solenoid adjacent and forward solenoid and anti- To the intermediate point of solenoid axis；Described dividing plate is between forward solenoid and reverse solenoid；Described electric shock hammer and electromagnetism Ferrum is between dividing plate；Described electric magnet connects and can promote electric shock hammer, makes electric shock hammer tap aluminium ring shape inner-walls of duct.

7. described in claim 1 with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field, its feature exists In: described rotating excitation field is centrifuged module and includes aluminum matter pipeline, iron shell, three-phase symmetric winding, flange and three-phase symmetrical electricity Flow module；Described three-phase symmetric winding is wound on outside aluminum matter pipeline；Described iron shell is coated on aluminum matter pipeline；Described flange welds It is connected on the two ends of aluminum matter pipeline；Described three-phase symmetrical current module connects described three-phase symmetric winding.

8. described in claim 1 with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field, its feature exists In: the bottom of described oil returning tube is provided with an overflow valve, is provided with an automatically controlled set screw bottom this overflow valve；Set on described overflow valve Having an oil drain out, this oil drain out is connected to a fuel tank by pipeline.

9. described in claim 1 with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field, its feature exists In: the bottom of described inner core is rounding mesa-shaped, and it is connected by an inner core oil exit pipe and oil returning tube, and inner core oil exit pipe is provided with one Automatically controlled check-valves.

10. described in claim 1 with operating mode adaptive-filtering, magnetize, adsorb and the filter method of rotating excitation field, its feature exists In: the center upright of described inner core is provided with a hollow cylinder, hollow cylinder be arranged over pressure difference indicator, this pressure difference indicator It is installed on end cap；Described inner core oil inlet pipe and the tangent connection of helical flow path.