CN105805093A - Full-band filtering, magnetized, adsorption, rotary magnetic field and centrifugal oil filtering system - Google Patents

Abstract

The invention relates to a full-band filtering, magnetized, adsorption, rotary magnetic field and centrifugal oil filtering system. The full-band filtering, magnetized, adsorption, rotary magnetic field and centrifugal oil filtering system is characterized in that a filter, a U-shaped particle separation module, an oil return barrel and an outer barrel are sequentially arranged on a bottom plate; the filter is connected with the U-shaped particle separation module, and adopts a full-band filter; the U-shaped particle separation module comprises a U-shaped pipe; a temperature control module, a magnetization module, a mechanical centrifugal module, a first adsorption module, a rotary magnetic field centrifugal module, a second adsorption module and a demagnetization module are sequentially arranged on the U-shaped pipe; the upper part of the U-shaped particle separation module is connected with the upper part of the oil return barrel through an oil return barrel oil inlet pipe; an inner barrel is arranged in the outer barrel, and is arranged on an end cover; a spiral channel is accommodated in the inner barrel, and is connected with the U-shaped particle separation module through an inner barrel oil inlet pipe; the inner barrel oil inlet pipe is located in the oil return barrel oil inlet pipe; and a filter element is arranged on the inner wall of the inner barrel. The full-band filtering, magnetized, adsorption, rotary magnetic field and centrifugal oil filtering system has the multiple advantages that the filter performance is good; the applicability and integrity are high; the service life is long; and the like.

Description

With full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system

[technical field]

The present invention relates to a kind of hydraulic oil filtration system, be specifically related to the filtering of a kind of full frequency band, magnetization, absorption, rotating excitation field and centrifugal oil filtering system, belong to technical field of hydraulic equipment.

[background technology]

Statistics both domestic and external show, the fault nearly 70%～85% of hydraulic system causes due to oil contamination.Solid particle is then the pollutant the most general in oil contamination, damaging effect is maximum.The hydraulic system fault caused by solid grain contamination accounts for the 70% of gross contamination fault.In particulate pollutant in hydraulic system oil liquid, metal filings accounting is between 20%～70%.Adopt an effective measure the solid grain contamination filtering in fluid, be the key of Pollution Control in Hydraulic System, be also the Reliable guarantee of system safety operation.

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

But, the high pressure filter that existing hydraulic system uses has the disadvantage that the cleannes of fluid are required different by (1) all kinds of Hydraulic Elements, the size of the solid particle in fluid is also different, need for this diverse location in hydraulic system that multiple dissimilar wave filter are installed, thus bring cost and the problem installing complexity；(2) filter in hydraulic system mainly adopts cake filtration mode, during filtration, filtrate is perpendicular to filter element surface flowing, trapped solid particle forms filter cake progressive additive, and the rate of filtration is also gradually reduced therewith until filtrate stops flowing out, and reduces the service life of filter element.

Therefore, for solving above-mentioned technical problem, a kind of innovation of necessary offer with full frequency band filter, magnetization, absorption, rotating excitation field and centrifugal oil filtering system, 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 are high, long service life with full frequency band filter, magnetization, absorption, rotating excitation field and centrifugal oil filtering system.

For achieving the above object, the technical scheme that the present invention takes is: with full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system, it includes base plate, wave filter, U-shaped separation of particles 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 module, oil returning tube, outer barrel are sequentially placed on base plate；Described wave filter includes input pipe, shell, outlet tube, corrugated tube, elastic thin-wall and colloid damping layer；Wherein, described input pipe is connected to one end of shell, and itself and a hydraulic oil inlet are docked；Described outlet tube is connected to the other end of shell, and it extends in shell, and and U-shaped separation of particles module docking；Described elastic thin-wall is installed in shell along the radial direction of shell；Described input pipe, outlet tube and elastic thin-wall are collectively forming a K mode filter；The resonance cavity volume of cylinder is formed between described elastic thin-wall and shell；Described elastic thin-wall axially uniformly have some conical damping holes, conical damping hole connection resonance cavity volume；Described corrugated tube is wound on outside resonance cavity volume in the shape of a spiral, inserts pipe with resonance cavity volume by multiple tapers and connects；Described corrugated tube is connected by some arms between respectively enclosing, and arm is provided with switch；Described corrugated tube and resonance cavity volume composition plug-in type spiral isomery cascaded H mode filter；Described U-shaped separation of particles module includes a U-tube, and U-tube is sequentially installed with temperature control module, magnetized module, mechanical centrifugal module, the first adsorption module, the centrifugal module of rotating excitation field, the second adsorption module and demagnetization module；Connecting above through an oil returning tube oil inlet pipe of described U-shaped separation of particles module and oil returning tube；Described inner core is placed in outer barrel, and it is installed on end cap by a top board and some bolts；Described helical flow path is contained in inner core, is 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 oil inlet pipe, and extends into the central authorities of U-shaped separation of particles module, its diameter less than oil returning tube oil inlet pipe diameter, and and oil returning tube oil inlet pipe be coaxially disposed；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 a hydraulic oil oil-out.

The present invention is further arranged to full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system: the axis of described input pipe and outlet tube is not on the same axis；The described wider place of conical damping hole opening is positioned at resonance cavity volume, and its taper angle is 10 °；Described taper is inserted the wider place of tube opening and is positioned at corrugated tube, and its taper angle is 10 °；Described taper is inserted the position of pipe and conical damping hole and is mutually staggered；The internal layer of described colloid damping layer and outer layer respectively outer layer elastic thin-wall and internal layer elastic thin-wall, connected by some pillars are fixing between outer layer elastic thin-wall and internal layer elastic thin-wall；Being filled with the pure water adding antifreezing agent in interlayer between described outer layer elastic thin-wall and internal layer elastic thin-wall, pure water inner suspension has Bio-sil；Described colloid damping 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.

The present invention is further arranged to full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system: described temperature control module includes heater, cooler and temperature sensor；Described heater adopts the lubricating oil heater of the Chongqing gold letter with 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 adopts platinum resistance temperature sensor.

The present invention is further arranged to full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system: 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 is coated 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.

The present invention is further arranged to full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system: described mechanical centrifugal module adopts the centrifugal module of eddy flow；The centrifugal module of described eddy flow 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 it is highly 0.4 times of tube wall diameter, and length is 1.8 times 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 present invention is further arranged to full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system: described first adsorption module and the second adsorption module all adopt the adjacent type absorbing ring of homopolarity, and the adjacent type absorbing ring of this homopolarity 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 the intermediate point of reverse solenoid adjacent and forward solenoid and reverse solenoid axis.

The present invention is further arranged to full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system: described first adsorption module and the second adsorption module all adopt the adjacent type absorbing ring of homopolarity of charged hammer, and the adjacent type absorbing ring of homopolarity of this charged hammer includes aluminium ring shape pipeline, forward solenoid, reverse solenoid, irony magnetic conduction cap, dividing plate, electric shock hammer and electric magnet；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 the intermediate point of reverse solenoid adjacent and forward solenoid and reverse solenoid axis；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 knock aluminium ring shape inner-walls of duct.

The present invention is further arranged to full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system: the centrifugal module of described rotating excitation field includes aluminum matter pipeline, iron shell, three-phase symmetric winding, flange and three-phase symmetrical current module；Described three-phase symmetric winding is wound on outside aluminum matter pipeline；Described iron shell is coated on aluminum matter pipeline；Described flange welding is at the two ends of aluminum matter pipeline；Described three-phase symmetrical current module connects described three-phase symmetric winding.

The present invention is further arranged to full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system: 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；Described overflow valve is provided with an oil drain out, and this oil drain out is connected to a fuel tank by pipeline.

The present invention is also configured to full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system: 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 an automatically controlled check-valves；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 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 operationally not vibrate, to improve strainability；Hydraulic oil realizes the separation of solid particle in U-shaped separation of particles module, make solid particle in fluid to vessel wall motion, at U-shaped separation of particles module outlet place, fluid rich in the near-wall of solid particle passes through to be back to fuel tank after oil returning tube oil inlet pipe enters oil returning tube, only then enter inner core by inner core oil inlet pipe containing the fluid of the pipeline center of the little particle diameter microgranule of trace and carry out high-precision filtration, improve the service life of filter element, reduce filtering cost and complexity；The fluid entering inner core oil inlet pipe flows into the helical flow path of inner core in the way of tangential influent stream, inner tube wall is filter element, then filtrate is close to filter core flow under the influence of centrifugal force, filtrate is parallel to the surface of filter element and quickly flows, hydraulic oil after filtration is then perpendicular to cartridge surface direction and flows out to urceolus, the microgranule of cartridge surface is implemented to sweep stream effect by this cross flow filter type, inhibit the increase of filter cake thickness, it is deposited on the pollution granule bottom inner core and regularly can be discharged to oil returning tube by automatically controlled check-valves, thus improving filter element service life.

2., by controlling temperature and the magnetic field intensity of hydraulic oil, make the force-magnetized bulky grain that is gathered into of the granule in fluid, and promote colloidal particles decomposition to melt；Efficient absorption is formed by adsorption module；Utilize rotating excitation field by the molecule " separation " in fluid and to gather near-wall, catch molecule with adsorbent equipment；By degaussing gear, residual particles demagnetization avoided harm 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, it is necessary to multipair forward and reverse coil to and by different size of electric current, and current values can digital setting online.

[accompanying drawing explanation]

Fig. 1 is the structural representation with full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system of the present invention.

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

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

Fig. 4 is the H mode filter frequency characteristic constitutional diagram of single H mode filter and series connection.Wherein, solid line is single H mode filter frequency characteristic.

Fig. 5 is the structural representation of K mode filter.

Fig. 6 is the cross sectional representation of elastic thin-wall.

Fig. 7 is the Longitudinal cross section schematic of colloid damping layer.

Fig. 8 is the schematic diagram of the U-shaped separation of particles module in Fig. 1.

Fig. 9 is the structural representation of the magnetized module in Fig. 8.

Figure 10 is the structural representation of the winding in Fig. 9.

Figure 11 is the circuit diagram of the magnetizing current output module in Fig. 9.

Figure 12 is the structural representation that first adsorption module (the second adsorption module) of Fig. 8 is the adjacent type absorbing ring of homopolarity.

Figure 13 is the structural representation of the adjacent type absorbing ring of homopolarity that the first adsorption module (the second adsorption module) in Fig. 8 is charged hammer.

Figure 14 is the structural representation of the centrifugal module of the rotating excitation field in Fig. 8.

Figure 15 is the horizontal schematic diagram of the mechanical centrifugal module of Fig. 8.

Figure 16 is the radial direction schematic diagram of the mechanical centrifugal module of Fig. 8.

[detailed description of the invention]

Refer to shown in Figure of description 1 to accompanying drawing 16, the present invention is the filtering of a kind of full frequency band, magnetization, absorption, rotating excitation field and centrifugal oil filtering system, and it is made up of several parts such as base plate 6, wave filter 8, U-shaped separation of particles module 3, oil returning tube 7, inner core 15, helical flow path 17, filter element 18, outer barrel 19 and end caps 25.Wherein, described wave filter 8, U-shaped separation of particles module 2, oil returning tube 7, outer barrel 19 are sequentially placed on base plate 6.

Described wave filter 8 is for inputting hydraulic oil, and the fluctuation pressure of the high, medium and low frequency range that can decay in hydraulic system, and suppresses flowed fluctuation.Described wave filter 8 is made up of several parts such as input pipe 81, shell 89, outlet tube 811, corrugated tube 83, elastic thin-wall 87 and colloid damping layers 88.

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 is connected to the other end of shell 89, and it extends in shell 89, and itself and U-shaped separation of particles module 3 are docked.Described elastic thin-wall 87 is installed in shell 89 along the radial direction of shell.The axis of described input pipe 81 and outlet tube 811 not on the same axis, so can improve the filter effect of more than 10%.

Described input pipe 81, outlet tube 811 and elastic thin-wall 87 are collectively forming a K mode filter, thus hydraulic system high frequency pressure pulsations of decaying.The filter transmission coefficient obtained after processing by lumped-parameter method is:

$\mathrm{\γ}=\frac{{\left|Z\right|}^2}{{\left|Z\right|}^2+{\left(\frac{2\mathrm{\ρ}a}{{\mathrm{\πd}}_2^2}\right)}^2}$

Velocity of sound ρ fluid density d in a medium₂Plug-in type outlet tube diameter Z characteristic impedance.

From above formula, K mode filter is similar with the electric capacity effect in circuit.When the pressure pulse wave of different frequency is by this wave filter, transmission coefficient is different with frequency.Frequency is more high, then transmission coefficient is more little, and this shows that the pressure pulse wave of high frequency is decayed more severe when device after filtering, thus serving the effect eliminating high frequency pressure pulsations.

The design principle of described K mode filter is as follows: when in pipeline, the fluctuating frequency of pressure is higher, and pressure oscillation acts on convection cell on fluid and produces pinch effect.When the flow of change enters K mode filter cavity volume by input pipe, liquid stream exceedes average discharge, and the cavity volume of expansion can absorb unnecessary liquid stream, and releases liquid stream when lower than average discharge, thus absorption pressure pulsation energy.

Described elastic thin-wall 87 weakens hydraulic system medium-high frequency pressure fluctuation by being forced to mechanical vibration.The elastic thin-wall natural frequency obtained after processing by lumped-parameter method 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 of elastic thin-wall 87 is generally high than the natural frequency of H mode filter, and its attenuation band is also wide than H mode filter.In relatively wide frequency band range, pressure fluctuation is had good attenuating by elastic thin-wall.Meanwhile, the elastic thin-wall radius in the filter construction of the present invention is bigger and relatively thin, and its natural frequency is closer to Mid Frequency, it may be achieved 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, Double-pipe plug-in type cavity volume wave filter is more weak to the damping capacity of pressure oscillation, flow into the periodically pulsing pressure continuous action of Double-pipe plug-in type cavity volume on the inside and outside wall of elastic thin-wall, owing to having between inside and outside wall, pillar is fixing to be connected, inside and outside elastic thin-wall does periodic vibration by the frequency of fluctuation pressure simultaneously, this forced vibration consumes the pressure fluctuation energy of fluid, thus realizing the filtering of Mid Frequency pressure.From the principle of virtual work, potential energy and kinetic energy sum when elastic thin-wall consumes the ability of fluid pulsation pressure energy with its forced vibration are directly related, in order to improve Mid Frequency filtering performance, the radial design of elastic thin-wall is much larger than pipe radius, and the thickness of thin-walled is less, representative value is less than 0.1mm.

Further, the resonance cavity volume 85 of cylinder is formed between described elastic thin-wall 87 and shell 89.Described elastic thin-wall 87 axially uniformly have some conical damping holes 86, to ensure all to realize plug-in type connection in series-parallel filtering in the scope of whole wave filter.Conical damping hole 86 connection resonance cavity volume 85.The described wider place of conical damping hole opening is positioned at resonance cavity volume, and its taper angle is 10 °, and for broadening frequency filtering scope, the wave filter natural angular frequency obtained after processing by lumped-parameter method is:

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

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

Described corrugated tube 83 is wound on outside resonance cavity volume 85 in the shape of a spiral, inserts pipe 82 with resonance cavity volume 85 by multiple tapers and connects.Described taper insert the wider place of pipe 82 opening be positioned at corrugated tube 83, its taper angle be 10 ° for broadening frequency filtering scope.Described taper is inserted the position of pipe 82 and conical damping hole 86 and is mutually staggered.Described corrugated tube 83 is connected by some arms 810 between respectively enclosing, and arm 810 is provided with switch 84.Described corrugated tube 83 and resonance cavity volume 85 form plug-in type spiral isomery cascaded H mode filter.

As shown in Figure 4, cascaded H mode filter has 2 natural angular frequencies, better at crest place filter effect, is then substantially free of filter effect at trough place；Plug-in type spiral isomery cascaded H mode filter have employed corrugated tube 83 structure of spiral isomery, corrugated tube itself has elasticity, and when the flow of hydraulic system and pressure fluctuation are through corrugated tube, fluid media (medium) causes hydraulic pressure-spring system vibration, offset Wave energy, thus playing filter action；Meanwhile, the connection of the some arms 810 between each circle corrugated tube 83 or disconnection, cause interference and the superposition of ripple, thus changing the frequency characteristic of cascaded H mode filter；The quantity of reasonable arrangement filter parameter and connection arm and position, can make the trough of the frequency characteristic of cascaded H mode filter raise, make wave filter have good filtering performance at whole medium and low frequency Duan Jun, it is achieved the entire spectrum filtering of medium and low frequency section.

The inner side of described elastic thin-wall 87 is provided with colloid damping layer 88.The internal layer of described colloid damping layer 88 and outer layer respectively outer layer elastic thin-wall 81 and internal layer elastic thin-wall 82, connected by some pillars 814 are fixing between outer layer elastic thin-wall 81 and internal layer elastic thin-wall 82.Being filled with the pure water 816 adding antifreezing agent in interlayer between outer layer elastic thin-wall 81 and internal layer elastic thin-wall 82, pure water 816 inner suspension has Bio-sil 815.Described colloid damping layer 88 is connected with shell 89 near one end of outlet tube 811；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 81 with internal layer elastic thin-wall 82 spacing is only small and is connected by pillar 814 is fixing, when pressure fluctuation acts perpendicularly to thin-walled, inside and outside wall produces to be close to consistent deformation, and colloid damping layer thickness is kept approximately constant, and pressure fluctuation is not had damping action；The flow pulsation in 817 sensation level directions of piston of colloid damping layer 88, when flow pulsation strengthens, piston 817 pressurized makes colloid damping layer shrink, and squeezing action makes the water in colloid damping layer 88 be entered micron order central void by nanoscale transfer passage；When flow pulsation weakens, piston 817 is by back-pressure, and now colloid damping layer expands, and the water in colloid damping layer is discharged from central void through passage.In the process, due to the mechanics effect of silica gel 815 microchannel sorption, channel surface molecular scale roughness effect and chemistry heterogeneous body effect, piston follows the interfactial work that colloid damping layer shrinks and does " gas-liquid-solid " border in expansion process, thus flow systolic implementation is decayed, it is a parallel R mode filter substantially.This wave filter is in that relative to the advantage of general liquid condenser: it is decayed flow pulsation by the mode of the interfactial work on " gas-liquid-solid " border, a large amount of mechanical energy can be absorbed when not producing heat, and energy expenditure does not rely on piston speed, extinction efficiency is obviously improved.

The present invention can also the pulsation decay of solid line operating mode self-adaptive pressure.When hydraulic system working conditions change, both executive component stopped suddenly or ran, and when the opening of valve changes, can cause that the characteristic impedance of pipe-line system is undergone mutation, so that former pipeline pressure also changes therewith with the curve of change in location in time, then the position of pressure peak also changes.Owing to the axial length of the wave filter of the present invention is designed as more than system main pressure pulsation wavelength, and the cavity volume length of plug-in type spiral isomery cascaded H mode filter of wave filter, the length of K mode filter and the length of elastic thin-wall and wave filter axial length equal, it is ensured that pressure peak position is constantly in the effective range of wave filter；And the conical damping hole 86 of plug-in type spiral isomery cascaded H mode filter is opened on elastic thin-wall 87, it is uniformly distributed in the axial direction, corrugated tube 83 and the taper insertion pipe resonated between cavity volume 85 that spiral isomery is wound around axially are being uniformly distributed, make pressure peak change in location on the performance of wave filter almost without impact, it is achieved thereby that operating mode adaptive-filtering function.Considering that three kinds of filter structure axial dimensions and wave filter are suitable, this bigger size also ensure that hydraulic filter possesses stronger pressure fluctuation damping capacity.

The method that the pressure fluctuation restraining device adopting the present invention carries out hydraulic pulsation filtering is as follows:

1), hydraulic fluid enters K mode filter by input pipe, and the cavity volume of expansion absorbs unnecessary liquid stream, completes the filtering of high frequency pressure pulsations；

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

3), by plug-in type spiral isomery cascaded H mode filter, insert pipe by conical damping hole, taper and fluid produces resonance, 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 connection in series-parallel H mode filter length, filter length and elastic thin-wall 87 length are equal with filter length, pressure peak position is made to be 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, magnetized module 33, mechanical centrifugal module the 38, first adsorption module 34, centrifugal module the 36, second adsorption module 37 of rotating excitation field and demagnetization module 35.

Described temperature control module 32 main purpose is to provide magnetization temperature 40-50 DEG C of the best for magnetized module 33, also has the effect of fluid viscosity reduction concurrently simultaneously, and it includes heater, cooler and temperature sensor.Described heater adopts the lubricating oil heater of the Chongqing gold letter with temperature detection.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, adopts 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.Described temperature sensor adopts platinum resistance temperature sensor.

Described magnetized module 33 realizes the force-magnetized of metallic particles, and makes micron-sized metallic particles aggregate into bulky grain, it is simple to subsequent adsorbtion separates.Magnetized module 32 it is also required to provide non-uniform magnetic-field simultaneously, the colloidal particles in hydraulic oil carries out magnetization and decomposes, the microgranule making colloid particulate breakup be less grain size, pollution abatement.

Described magnetized module 33 is made up of aluminum matter pipeline 331, some windings 332, iron shell 333, flange 334 and some magnetizing current output modules 335.Wherein, described aluminum matter pipeline 331 makes fluid flow there through and is subject to magnetization treatment, and the pcrmeability of aluminum is very low, it is possible to make to obtain in pipeline 331 higher magnetic field intensity.

Described some windings 332 are rotating around, outside aluminum matter pipeline 331, being made up of the copper wire coating insullac that diameter is about 1.0mm.Each winding 332 is all independent from setting, is controlled by corresponding magnetizing current output module 335 respectively, and wherein electric current needs different according to system.Separate owing to often enclosing winding 332, its exit can cause the electric current loop that this coil forms not to be real " circle ", but has individual breach, and this can cause the radial distribution of aluminum matter pipeline 331 internal magnetic field uneven, thus affecting 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, it is therefore an objective in order to produce the magnetic field in same polarity direction and to make up the magnetic field that breach causes unbalanced simultaneously.Size of current in positive winding and inverse winding is equal.Aluminum matter pipeline 331 axis direction is arranged with multipair forward and reverse winding, by different electric currents, in order to form 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.Described flange 334 is 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 the feature of digital potentiometer real time modifying resistance, it is achieved the real-time control of non-uniform magnetic-field.The circuit theory diagrams of described magnetizing current output module 335 can referring to accompanying drawing 5, and the digital potentiometer of its use is AD5206, has the defeated of 6 passages.Amplifier AD8601 and metal-oxide-semiconductor 2N7002 achieves the output of high-precision voltage follow by negative feedback.Constant High-current output have employed the amplifier OPA549 of the high voltage of Texas Instrument (TI), big electric current.

Described mechanical centrifugal module 38 makes the magnetization aggregated particles in fluid be thrown toward tube wall under the action of the centrifugal.Described mechanical centrifugal module 38 selects eddy flow to be centrifuged module 38, the centrifugal module 38 of this eddy flow adopts 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 and axis angled, 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 centrifugal device 38 is made up of several parts such as eddy flow tube wall the 381, first flow deflector the 382, second flow deflector 383, motor 384 and flow transducers 385.

Wherein, described first flow deflector 382 is provided with 3, these 3 first flow deflectors 382 are uniformly distributed along tube wall 381 inner periphery every 120 °, and its laying angle (angle between the first flow deflector 382 and eddy flow tube wall 381) is set to 18 °, to ensure best tangential flowing.Described second flow deflector 383 is identical with the first flow deflector 382 structure, after it is arranged on the first flow deflector 382, and and the first flow deflector 382 stagger 60 ° and be connected in tube wall 381, 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 equally again according to actual separation effect, laying angle gradually increases.Described motor 384 connects and drives the first flow deflector 382 and the second flow deflector 383, to regulate laying angle, thus better centrifugal effect can be obtained, knows and makes flow deflector 382,383 adapt to different operating modes.Described flow transducer 385 is arranged on the central authorities in tube wall 381, by the numerical analysis cyclonic separation effect of reading flow quantity sensor 385, and controlling motor 384 accordingly, motor 384 regulates the laying angle of each flow deflector 382,383, to obtain separating effect more.

Further, the long limit of described first flow deflector 382 is connected with tube wall 381, and minor face 383 extends along the axis of tube wall 381；For reducing resistance, its leading edge frustrates into obtuse；For avoiding streaming, trailing edge is processed into wing；It is highly 0.4 times of tube wall 381 diameter, makes the spiral flow of formation have bigger intensity；Length is 1.8 times of tube wall 381 diameter, to ensure the bigger sphere of action to fluid.

Described first adsorption module 34 is for adsorbing the big microgranule of magnetic polymeric after mechanical centrifugal module 38 is centrifugal, it can adopt the adjacent type absorbing ring of homopolarity, and the adjacent type absorbing ring of this homopolarity is made up of parts such as aluminium ring shape pipeline 341, forward solenoid 342, reverse solenoid 343 and irony magnetic conduction caps 344.Wherein, described forward solenoid 342 and reverse solenoid 343 are respectively arranged in aluminium ring shape pipeline 341, and both are connected with electric current in opposite direction so that forward solenoid 342 and reverse solenoid 343 adjacent produce 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 solenoid 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, adjacent forward solenoid 342, reverse solenoid 343 are connected with electric current in opposite direction so that forward solenoid 342, reverse solenoid 343 adjacent produce like pole；Meanwhile, aluminium ring shape pipeline 341 can improve magnetic circuit, strengthens the magnetic field intensity at inner-walls of duct place, strengthens irony magnetic conduction cap 344 and granule is caught absorbability.Each forward solenoid 342, reverse solenoid 343 electric current can be different with concentration and change according to the size of granule, to obtain optimal adsorption performance.

Further, the adjacent type absorbing ring of homopolarity that described first adsorption module 34 may be used without charged hammer, the adjacent type absorbing ring of homopolarity of this charged hammer is made up of parts such as aluminium ring shape pipeline 341, forward solenoid 342, reverse solenoid 343, irony magnetic conduction cap 344, dividing plate 345, electric shock hammer 346 and electric magnet 347.Wherein, described forward solenoid 342 and reverse solenoid 343 are respectively arranged in aluminium ring shape pipeline 341, and both are connected with electric current in opposite direction so that forward solenoid 342 and reverse solenoid 343 adjacent produce 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 solenoid 342 and reverse solenoid 343 adjacent and forward solenoid 342 and the intermediate point of reverse solenoid 343 axis.Described electric shock hammer 346 and electric magnet 347 are between dividing plate 345.Described electric magnet 347 connects and can promote electric shock hammer 346, makes electric shock hammer 346 knock 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 solenoid 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 produce like pole；Meanwhile, aluminium ring shape pipeline 341 can improve magnetic circuit, strengthens the magnetic field intensity at inner-walls of duct place, strengthens irony magnetic conduction cap 344 and granule is caught absorbability.Each forward solenoid 342, reverse solenoid 343 electric current can be different with concentration and change according to the size of granule, to obtain optimal adsorption performance.And by the setting of the hammer 346 that shocks by electricity, it is prevented that granule, at irony magnetic conduction cap 344 place bulk deposition, affects adsorption effect.Now, control electric shock hammer 346 by electric magnet 347 and knock the inwall of pipeline 341 so that adsorbed granule scatter to both sides.Meanwhile, when cleaning pipeline 341, knocking of electric shock hammer 346 can also improve cleaning performance.

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

The centrifugal module 36 of described rotating excitation field utilizes the centrifugal small magnetization granule not adsorbed by the first adsorbent equipment 34 of rotating excitation field, and it is made up of aluminum matter pipeline 361, iron shell 362, three-phase symmetric winding 363, flange 364 and three-phase symmetrical current module 365.Described three-phase symmetric winding 363 is wound on outside aluminum matter pipeline 361.Described iron shell 362 is coated on aluminum matter pipeline 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 of the centrifugal module 36 of described rotating excitation field is as follows: not adsorbed small magnetization granule enters the centrifugal module 36 of rotating excitation field, three-phase symmetrical current module 365 makes to flow through in three-phase symmetric winding 363 three-phase symmetrical electric current, this electric current produces rotating excitation field in aluminum matter pipeline 361, magnetized particles is subject to the effect of magnetic field force under rotating excitation field effect, and spirally advance under this force, simultaneously to vessel wall motion.Therefore, regulating magnetic field intensity can make the granule in fluid " separation " from fluid out, be gathered in aluminum matter pipeline 361 near-wall, it is simple to subsequent adsorbtion is caught.

Described second adsorbent equipment 37 is identical with described first adsorbent equipment 34 structure, and function is also identical with the mechanism of action, and it can adsorb the granule that the centrifugal module 36 in rotated magnetic field separates further.

Described demagnetization module 35 gives magnetized particles demagnetization, it is prevented that residual magnetism microgranule enters hydraulic circuit by oil returning tube oil inlet pipe, and sensitive to pollution Hydraulic Elements cause damage.

Connecting above through an oil returning tube oil inlet pipe 22 of described U-shaped separation of particles module 3 and oil returning tube 7；After being processed by U-shaped separation of particles module 3, the fluid of U-tube 31 near-wall, rich in aggregated particles, is back to fuel tank after entering oil returning tube 7 by oil returning tube oil inlet pipe 22.

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, and it is installed on end cap 25 by a top board 13 and some bolts 21.Described helical flow path 17 is contained in inner core 15, is connected by an inner core oil inlet pipe 12 between itself and U-shaped separation of particles module 3, specifically, and described inner core oil inlet pipe 12 and the tangent connection of helical flow path 17.The fluid of U-tube 31 pipeline center only containing the little particle diameter microgranule of trace, enters inner core 15 by inner core oil inlet pipe 12 and realizes high-precision filtration, separates thus realizing solid particle.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 and oil returning tube oil inlet pipe 22 be coaxially disposed.

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, and 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, is discharged by the hydraulic oil filtered by hydraulic oil oil-out 5.

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

It addition, traditional filter mainly adopts cake filtration mode, during filtration, filtrate is perpendicular to filter element surface flowing, trapped solid particle forms filter cake progressive additive, the rate of filtration is also gradually reduced therewith, until filtrate stops flowing out, reduces the service life of filter element.In this present invention, carry the filtrate of little particle diameter microgranule from inner core oil inlet pipe 12 in the way of tangential influent stream, flow into the helical flow path 17 of inner core 15, 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, filtrate is parallel to the surface of filter element 18 and quickly flows, hydraulic oil after filtration 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 is called cross flow and filters.The microgranule being gathered in filter element 18 surface is applied with shearing and sweeps stream effect by the quickly flowing of filtrate, thus inhibiting the increase of filter cake thickness, make rate of filtration near constant, filter pressure without raising with the passing of time, service life of filter element thus increase substantially.Accumulation along with filtration time, it is deposited on the pollution granule bottom inner core 15 inverted round stage to be stepped up, the rate of filtration slowly declines, in inner core 15, unfiltered filtrate rises along the hollow cylinder 16 at center, now, pressure difference indicator 14 works, monitor 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 under differential pressure action, to be discharged to oil returning tube 7 by inner core oil exit pipe 23 containing the filtrate of more pollution granule bottom inner core 15, avoid bottom filter element 18 blockage to worsen, thus extending filter element 18 service life.

Adopt the processing step that backflow force feed is processed by above-mentioned oil-filtering apparatus as follows:

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

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

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

4), magnetization aggregated particles is centrifugal in mechanical centrifugal module 38；

5), being adsorbed the magnetic polymeric microgranule in oil return by the first adsorption module 34, the centrifugal module 36 of rotating excitation field is delivered in oil return afterwards；

6), the centrifugal module 36 of rotating excitation field utilizes rotating excitation field to separate the magnetic microparticles not adsorbed, and the second adsorption module 37 is delivered in oil return afterwards；

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

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

9), the fluid of U-shaped separation of particles module 3 near-wall is back to fuel tank after entering oil returning tube 7 by oil returning tube oil inlet pipe 22 afterwards, and the fluid of the pipeline center containing the little particle diameter microgranule of trace then enters inner core 15 by inner core oil inlet pipe 12 and carries out high-precision filtration；

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

11), 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, and any amendment of making within all spirit in this creation and principle, equivalent replacement, improvement etc., should be included within the protection domain of this creation.

Claims (10)

1. with full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system, it is characterised in that: include base plate, wave filter, U-shaped separation of particles 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 module, oil returning tube, outer barrel are sequentially placed on base plate；Described wave filter includes input pipe, shell, outlet tube, corrugated tube, elastic thin-wall and colloid damping layer；Wherein, described input pipe is connected to one end of shell, and itself and a hydraulic oil inlet are docked；Described outlet tube is connected to the other end of shell, and it extends in shell, and and U-shaped separation of particles module docking；Described elastic thin-wall is installed in shell along the radial direction of shell；Described input pipe, outlet tube and elastic thin-wall are collectively forming a K mode filter；The resonance cavity volume of cylinder is formed between described elastic thin-wall and shell；Described elastic thin-wall axially uniformly have some conical damping holes, conical damping hole connection resonance cavity volume；Described corrugated tube is wound on outside resonance cavity volume in the shape of a spiral, inserts pipe with resonance cavity volume by multiple tapers and connects；Described corrugated tube is connected by some arms between respectively enclosing, and arm is provided with switch；Described corrugated tube and resonance cavity volume composition plug-in type spiral isomery cascaded H mode filter；Described U-shaped separation of particles module includes a U-tube, and U-tube is sequentially installed with temperature control module, magnetized module, mechanical centrifugal module, the first adsorption module, the centrifugal module of rotating excitation field, the second adsorption module and demagnetization module；Connecting above through an oil returning tube oil inlet pipe of described U-shaped separation of particles module and oil returning tube；Described inner core is placed in outer barrel, and it is installed on end cap by a top board and some bolts；Described helical flow path is contained in inner core, is 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 oil inlet pipe, and extends into the central authorities of U-shaped separation of particles module, its diameter less than oil returning tube oil inlet pipe diameter, and and oil returning tube oil inlet pipe be coaxially disposed；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 a hydraulic oil oil-out.

2. as claimed in claim 1 with full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system, it is characterised in that: the axis of described input pipe and outlet tube is not on the same axis；The described wider place of conical damping hole opening is positioned at resonance cavity volume, and its taper angle is 10 °；Described taper is inserted the wider place of tube opening and is positioned at corrugated tube, and its taper angle is 10 °；Described taper is inserted the position of pipe and conical damping hole and is mutually staggered；The internal layer of described colloid damping layer and outer layer respectively outer layer elastic thin-wall and internal layer elastic thin-wall, connected by some pillars are fixing between outer layer elastic thin-wall and internal layer elastic thin-wall；Being filled with the pure water adding antifreezing agent in interlayer between described outer layer elastic thin-wall and internal layer elastic thin-wall, pure water inner suspension has Bio-sil；Described colloid damping 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 full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system, it is characterised in that: described temperature control module includes heater, cooler and temperature sensor；Described heater adopts the lubricating oil heater of the Chongqing gold letter with 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 adopts platinum resistance temperature sensor.

4. as claimed in claim 1 with full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system, it is characterised in that: 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 is coated 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 full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system, it is characterised in that: described mechanical centrifugal module adopts the centrifugal module of eddy flow；The centrifugal module of described eddy flow 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 it is highly 0.4 times of tube wall diameter, and length is 1.8 times 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.

6. as claimed in claim 1 with full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system, it is characterized in that: described first adsorption module and the second adsorption module all adopt the adjacent type absorbing ring of homopolarity, and the adjacent type absorbing ring of this homopolarity 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 the intermediate point of reverse solenoid adjacent and forward solenoid and reverse solenoid axis.

7. as claimed in claim 1 with full frequency band filtering, magnetization, absorption, rotating excitation field and centrifugal oil filtering system, it is characterized in that: described first adsorption module and the second adsorption module all adopt the adjacent type absorbing ring of homopolarity of charged hammer, the adjacent type absorbing ring of homopolarity of this charged hammer includes aluminium ring shape pipeline, forward solenoid, reverse solenoid, irony magnetic conduction cap, dividing plate, electric shock hammer and electric magnet；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 the intermediate point of reverse solenoid adjacent and forward solenoid and reverse solenoid axis；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 knock aluminium ring shape inner-walls of duct.

8. described in claim 1 with full frequency band filter, magnetization, absorption, rotating excitation field and centrifugal oil filtering system, it is characterised in that: the centrifugal module of described rotating excitation field includes aluminum matter pipeline, iron shell, three-phase symmetric winding, flange and three-phase symmetrical current module；Described three-phase symmetric winding is wound on outside aluminum matter pipeline；Described iron shell is coated on aluminum matter pipeline；Described flange welding is at the two ends of aluminum matter pipeline；Described three-phase symmetrical current module connects described three-phase symmetric winding.

9. described in claim 1 with full frequency band filter, magnetization, absorption, rotating excitation field and centrifugal oil filtering system, it is characterised in that: 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；Described overflow valve is provided with an oil drain out, and this oil drain out is connected to a fuel tank by pipeline.

10. described in claim 1 with full frequency band filter, magnetization, absorption, rotating excitation field and centrifugal oil filtering system, it is characterized in that: the bottom of described inner core is rounding mesa-shaped, 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 check-valves；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 is installed on end cap；Described inner core oil inlet pipe and the tangent connection of helical flow path.