CN105971986A - Oil filter system adopting full-band filtering, magnetization and adsorption - Google Patents

Abstract

The invention relates to an oil filter system adopting full-band filtering, magnetization and adsorption. The oil filter system is characterized in that a filter, a U-shaped particle separation module, an oil return cylinder and an outer cylinder are sequentially arranged on a bottom plate; the filter is connected with the U-shaped particle separation module; the U-shaped particle separation module comprises a U-shaped tube; a temperature control module, a magnetization module, an adsorption module and a demagnetization module are mounted on the U-shaped tube; the U-shaped particle separation module is connected with the oil return cylinder through an oil return cylinder oil inlet tube; an inner cylinder is arranged in the outer cylinder and is mounted on an end cover; a spiral runner is accommodated in the inner cylinder, and is connected with the U-shaped particle separation module though an inner cylinder oil inlet tube; the inner cylinder oil inlet tube is positioned in the oil return cylinder oil inlet tube, and extends to the center of the U-shaped particle separation module; a filter element is arranged on the inner wall of the inner cylinder; and a hydraulic oil outlet is formed in the bottom of the outer cylinder. The oil filter system has the advantages that the filtration performance is good, the adaptability and integration are high, the service life is long, and the like.

Description

A kind of oil filtering system using full frequency band filtering, magnetizing and adsorb

[technical field]

The present invention relates to a kind of hydraulic oil filtration system, be specifically related to a kind of to use full frequency band filtering, magnetize and adsorb Oil filtering system, 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 in (1) hydraulic system because of hydraulic pump Periodically oil extraction mechanism brings flow pulsation and pressure fluctuation, makes the filter element in wave filter operationally produce forced vibration, fall Low strainability；(2) cleannes of fluid are required different by all kinds of Hydraulic Elements, the particle diameter of the solid particle in fluid Size is the most different, needs for this diverse location in hydraulic system to install multiple dissimilar wave filter, thus brings Cost and the problem installing complexity；(3) filter in hydraulic system mainly uses cake filtration mode, and during filtration, filtrate is hung down Directly flowing in filter element surface, trapped solid particle forms filter cake progressive additive, the rate of filtration the most gradually under Fall, until filtrate stops flowing out, reduces the service life of filter element.

Therefore, for solving above-mentioned technical problem, the employing full frequency band of a kind of innovation of necessary offer filters, magnetizes and inhale Attached 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 Height, service life length use full frequency band filtering, the oil filtering system that magnetizes and adsorb.

For achieving the above object, the technical scheme that the present invention takes is: a kind of use full frequency band filtering, magnetize and adsorb Oil filtering system, it 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 shell One end, itself and hydraulic oil inlet docking；Described outlet tube is connected to the other end of shell, itself and U-shaped separation of particles module pair Connect；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 one K-type wave filter；The resonance cavity volume of cylinder is formed between described elastic thin-wall and shell；The axial of described elastic thin-wall goes up 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, and Resonance cavity volume inserts pipe 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 Including a U-tube, U-tube is sequentially installed with temperature control module, magnetized module, 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；The bottom of said tub is provided with a hydraulic oil oil-out.

The present invention uses full frequency band filtering, magnetizes and the oil filtering system that adsorb is further arranged to: described input pipe with The axis of outlet tube is the most 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 °；Pipe is inserted in described taper and taper hinders Mutually stagger in the position in Buddhist nun hole；The internal layer of described colloid damping layer and outer layer are respectively outer layer elastic thin-wall and internal layer Thin Elastic Wall, 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 bullet It is filled with, in interlayer between property thin-walled, the pure water adding antifreezing agent, in pure water, is suspended with Bio-sil；Described colloid damps 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 oil filtering system using full frequency band to filter, magnetize and adsorb of the present invention is further arranged to: described temperature control module Including heater, cooler and temperature sensor；Described heater uses the lubricating oil heating of the Chongqing gold letter of band temperature detection Device；Remover for surface evaporation type air cooling selected by described cooler, and the finned tube of cooler selects KLM type finned tube；Temperature sensor uses Platinum resistance temperature sensor.

The oil filtering system using full frequency band to filter, magnetize and adsorb of the present invention is further arranged to: described magnetized module Including aluminum matter pipeline, some windings, iron shell, flange and some magnetizing current output modules；Wherein, described some windings Rotating around outside aluminum matter pipeline, each winding is made up of positive winding and inverse winding；Described iron shell is coated on aluminum matter pipeline；Institute State the flange welding two ends at aluminum matter pipeline；Each magnetizing current output module is connected to a winding.

The oil filtering system using full frequency band to filter, magnetize and adsorb of the present invention is further arranged to: described adsorption module Concrete employing homopolarity adjacent type absorbing ring, this homopolarity adjacent type absorbing ring includes aluminium ring shape pipeline, forward solenoid, reverse spiral shell Spool and irony magnetic conduction cap；Described forward solenoid and reverse solenoid are respectively arranged in aluminium ring shape pipeline, Liang Zhetong There is electric current in opposite direction so that forward solenoid and reverse solenoid adjacent produce like pole；Described irony magnetic conduction cap Being arranged on the inwall of aluminium ring shape pipeline, it is positioned at forward solenoid and reverse solenoid adjacent and forward solenoid Intermediate point with reverse solenoid axis.

The oil filtering system using full frequency band to filter, magnetize and adsorb of the present invention is further arranged to: described adsorption module The concrete homopolarity adjacent type absorbing ring using charged hammer, the homopolarity adjacent type absorbing ring of this charged hammer includes aluminium ring shape pipe Road, forward solenoid, reverse solenoid, irony magnetic conduction cap, dividing plate, electric shock hammer and electric magnet；Described forward solenoid is with anti- Being respectively arranged in aluminium ring shape pipeline to solenoid, both are connected with electric current in opposite direction so that forward solenoid is with 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 and reverse solenoid adjacent and forward solenoid and the intermediate point of reverse solenoid axis；Described dividing plate is positioned at Between forward solenoid and reverse solenoid；Described electric shock hammer and electric magnet are between dividing plate；Described electric magnet connects and energy Promote electric shock hammer, make electric shock hammer tap aluminium ring shape inner-walls of duct.

The oil filtering system using full frequency band to filter, magnetize and adsorb of the present invention is further arranged to: described oil returning tube Bottom 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, this row Hydraulic fluid port is connected to a fuel tank by pipeline.

The oil filtering system using full frequency band to filter, magnetize and adsorb of the present invention is further arranged to: the end of described inner core Portion 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 oil filtering system using full frequency band to filter, magnetize and adsorb of the present invention is further arranged to: in described inner core Centre be vertically provided with a hollow cylinder, hollow cylinder be arranged over pressure difference indicator, this pressure difference indicator is installed on end cap；Institute State inner core oil inlet pipe and the tangent connection of helical flow path.

The oil filtering system using full frequency band to filter, magnetize and adsorb of the present invention is also configured to: the precision of described filter element is 1-5 micron.

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 flows into the helical flow path of inner core in the way of tangential influent stream, and inner tube wall is filter element, then filtrate is the tightest Patch 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 stream Going 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 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 improve filter element and use the longevity Life.

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 is the structural representation of the oil filtering system using full frequency band to filter, magnetize and adsorb 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-type wave 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 be the adsorption module of Fig. 8 be the structural representation of homopolarity adjacent type absorbing ring.

Figure 13 be the adsorption module in Fig. 8 be the structural representation of the homopolarity adjacent type absorbing ring of charged hammer.

[detailed description of the invention]

Refer to shown in Figure of description 1 to accompanying drawing 13, the present invention be a kind of use full frequency band filtering, magnetize and adsorb Oil filtering system, its 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, filter element 18, Several parts compositions such as outer barrel 19 and end cap 25.Wherein, described wave filter 8, U-shaped separation of particles module 2, oil returning tube 7, outer barrel 19 It is 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, corrugated tube 83, elastic thin-wall 87 And several parts such as colloid damping layer 88 composition.

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, it extends in shell 89, and itself and U-shaped separation of particles module 3 are docked.Described Thin Elastic Wall 87 is installed in shell 89 along the radial direction of shell.The axis of described input pipe 81 and outlet tube 811 the most on the same axis, this Sample 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-type wave filter, thus hydraulic pressure system of decaying System high frequency pressure pulsations.The filter transmission coefficient obtained after processing by lumped-parameter method is:

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

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

From above formula, K-type wave filter is similar with the electric capacity effect in circuit.The pressure pulse wave of different frequency is by being somebody's turn to do During wave filter, transmission coefficient is different with frequency.Frequency is the highest, then transmission coefficient is the least, and this shows the pressure pulse wave of high frequency Decay the most severe when device after filtering, thus serve the effect eliminating high frequency pressure pulsations.

The design principle of described K-type wave filter is as follows: when in pipeline, the fluctuating frequency of pressure is higher, pressure oscillation acts on stream On body, convection cell produces pinch effect.When the flow of change enters K-type wave filter cavity volume by input pipe, liquid stream exceedes averagely Flow, the cavity volume of expansion can absorb unnecessary liquid stream, and releases liquid stream when less than average discharge, thus absorption pressure pulsating energy Amount.

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, Double-pipe plug-in type cavity volume Wave filter is more weak to the damping capacity of pressure oscillation, flows into the periodically pulsing pressure continuous action of Double-pipe plug-in type cavity volume at bullet Property thin-walled inside and outside wall on, owing to having between inside and outside wall, pillar is fixing to be connected, and inside and outside elastic thin-wall is simultaneously by the frequency of fluctuation pressure Rate does periodic vibration, and this forced vibration consumes the pressure fluctuation energy of fluid, thus realizes the filtering of Mid Frequency pressure.By void Merit principle understands, and the ability that elastic thin-wall consumes fluid pulsation pressure energy is straight with potential energy during its forced vibration and kinetic energy sum Connecing relevant, 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 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 Thin Elastic Some conical damping holes 86 are uniformly had, to ensure all can realize plug-in type in the range of whole wave filter in the axial direction of wall 87 Connection in series-parallel filters.Conical damping hole 86 connection resonance cavity volume 85.The described wider place of conical damping hole opening is positioned at resonance cavity volume, Its taper angle is 10 °, for broadening frequency filtering scope, the wave filter natural angular frequency obtained after processing by lumped-parameter method For:

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

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, and resonance cavity volume 85 inserts pipe 82 by multiple tapers Connection.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 model Enclose.Described taper is inserted the position of pipe 82 and conical damping hole 86 and is mutually staggered.Described corrugated tube 83 passes through some between respectively enclosing Arm 810 connects, and arm 810 is provided with switch 84.Described corrugated tube 83 and resonance cavity volume 85 form plug-in type spiral isomery string Connection H mode filter.

As shown in Figure 4, cascaded H mode filter has 2 natural angular frequencies, and at crest, filter effect is preferable, and at trough Place does not has filter effect the most substantially；The corrugated tube 83 that have employed spiral isomery in plug-in type spiral isomery cascaded H mode filter is tied Structure, corrugated tube itself has elasticity, when flow and the pressure fluctuation of hydraulic system cause liquid through corrugated tube, fluid media (medium) Pressure-spring system vibrates, and offsets Wave energy, thus plays filter action；Meanwhile, the some arms between each circle corrugated tube 83 The connection of 810 or disconnection, cause interference and the superposition of ripple, thus change the frequency characteristic of cascaded H mode filter；Reasonable arrangement is filtered Ripple device parameter and the connection quantity of arm and position, can make the trough of the frequency characteristic of cascaded H mode filter raise, make filtering Device has 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.Internal layer and the outer layer of described colloid damping layer 88 divide Not Wei outer layer elastic thin-wall 81 and internal layer elastic thin-wall 82, if by the Heavenly Stems and Earthly Branches between outer layer elastic thin-wall 81 and internal layer elastic thin-wall 82 Post 814 is fixing to be connected.It is filled with in interlayer between outer layer elastic thin-wall 81 and internal layer elastic thin-wall 82 and adds the pure of antifreezing agent Water 816, is suspended with Bio-sil 815 in pure water 816.Described colloid damping layer 88 is near one end of outlet tube 811 and shell 89 are connected；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 the least and is connected, at pressure by pillar 814 is fixing When 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, to pressure Power pulsation does not has damping action；The flow pulsation in 817 sensation level directions of piston of colloid damping layer 88, flow pulsation strengthens Time, piston 817 pressurized makes colloid damping layer shrink, and squeezing action makes the water in colloid damping layer 88 by nanoscale transfer passage Enter micron order central void；When flow pulsation weakens, piston 817 is by back-pressure, and now colloid damping layer expands, colloid damping layer In water from central void through passage discharge.In the process, due to mechanics effect, the channel table of silica gel 815 microchannel sorption The roughness effect of face molecular scale and chemistry heterogeneous body effect, piston follow colloid damping layer shrink and expansion process is done " gas- Liquid-solid " interfactial work on border, thus flow systolic implementation is decayed, its substantially parallel R mode filter.This filtering Device is relative to the advantage of general liquid condenser: it is decayed flow by the way of the interfactial work on " gas-liquid-solid " border 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, decay effect Rate 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 components Suddenly stop or running, and when the opening of valve changes, the characteristic impedance of pipe-line system can be caused to undergo mutation, so that former pipe Pressure curve with change in location in time in road changes the most therewith, then the position of pressure peak also changes.Due to the present invention The axial length of wave filter be designed as pulsing wavelength, and the plug-in type spiral isomery series connection of wave filter more than system main pressure The cavity volume length of H mode filter, the length of K-type wave filter and the length of elastic thin-wall and wave filter axial length are equal, it is ensured that Pressure peak position is constantly in the effective range of wave filter；And plug-in type spiral isomery cascaded H mode filter Conical damping hole 86 is opened on elastic thin-wall 87, is uniformly distributed in the axial direction, the corrugated tube 83 of spiral isomery winding and resonance Taper between cavity volume 85 is inserted pipe and is axially being uniformly distributed so that pressure peak change in location to the performance of wave filter almost without Impact, it is achieved thereby that operating mode adaptive-filtering function.Suitable in view of three kinds of filter structure axial dimensions and wave filter, this Bigger size also ensure that hydraulic filter possesses stronger pressure fluctuation damping capacity.

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

1), hydraulic fluid enters K-type wave filter by input pipe, and the cavity volume of expansion absorbs unnecessary liquid stream, completes high frequency pressure The filtering of power pulsation；

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 spiral isomery cascaded H mode filter, insert pipe by conical damping hole, taper and fluid produces Raw resonance, consumes pulsation energy, completes 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, Double-pipe plug-in type filter length and elastic thin-wall 87 length are equal with filter length, make pressure spike Value 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 33, adsorption module 34 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 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 aluminum Matter circulating line 341, both are connected with electric current in opposite direction so that forward solenoid 342 and reverse solenoid 343 adjacent produce Raw 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 With 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, the homopolarity adjacent type absorbing ring that described adsorption module 34 may be used without charged hammer, this charged hammer Homopolarity adjacent type absorbing ring by aluminium ring shape pipeline 341, forward solenoid 342, reverse solenoid 343, irony magnetic conduction cap 344, dividing plate 345, the parts such as hammer 346 and electric magnet 347 that shock by electricity form.Wherein, described forward solenoid 342 and reverse helical Pipe 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 reverse Solenoid 343 adjacent produces like pole.Described irony magnetic conduction cap 344 is arranged on the inwall of aluminium ring shape pipeline 341, its 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 electric shock 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 adsorption module 34 is designed to U-shaped, and when fluid enters U-shaped absorption pipeline, granule is at gravity, the work of centrifugal force Under with, to side, tube wall moves, and plus magnetic field force effect, moves radially speed and accelerates, and the efficiency of granular absorption is improved； Fluid leave U-shaped absorption pipeline rise time, making a concerted effort so that the diagonally lower direction motion of granule, prolongation of gravity and magnetic field force The numerical density time, improve the efficiency of granular absorption.

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 2, is provided with an automatically controlled set screw 9 bottom this overflow valve 2；Described Overflow valve 2 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 2, thus realizes solid particle by particle Footpath shunting filtering.Herein, oil returning tube 7 and overflow valve 2 serve aforesaid macrofiltration, thus save filter number, fall Low system cost and complexity.The automatically controlled set screw 9 of overflow valve 2 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 oil-filtering apparatus 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), hydraulic oil enters the temperature control module 32 of U-shaped separation of particles module 3, regulates oil temperature to by temperature control module 32 Good magnetization temperature 40-50 DEG C, enters magnetized module 33 afterwards；

3), make the metallic particles in fluid be magnetized in magnetic field by magnetized module 33, and make micron-sized metal Grain aggregates into bulky grain；Enter adsorption module 34 afterwards；

4), the magnetic polymeric microgranule in oil return is adsorbed by adsorption module 34；Enter demagnetization module 35 afterwards；

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

6), the fluid of U-shaped separation of particles module 3 near-wall refluxes after entering oil returning tube 7 by oil returning tube oil inlet pipe 22 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 and carries out high-precision Spend filter；

7), 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；

8), 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. one kind uses full frequency band filtering, the oil filtering system that magnetizes and adsorb, 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 microgranule divide It is sequentially placed on base plate from module, oil returning tube, outer barrel；Described wave filter includes input pipe, shell, outlet tube, corrugated tube, elasticity Thin-walled and colloid damping layer；Wherein, 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 extends in shell, and and U-shaped separation of particles module docking；Described elastic thin-wall Radial direction along shell is installed in shell；Described input pipe, outlet tube and elastic thin-wall are collectively forming a K-type wave filter；Described The resonance cavity volume of cylinder is formed between elastic thin-wall and shell；Some tapers resistance is uniformly had in the axial direction of described elastic thin-wall Buddhist nun hole, conical damping hole connection resonance cavity volume；Described corrugated tube is wound on outside resonance cavity volume in the shape of a spiral, and resonance cavity volume is by many Pipe connection is inserted in individual taper；Described corrugated tube is connected by some arms between respectively enclosing, and arm is provided with switch；Described corrugated tube With resonance cavity volume composition plug-in type spiral isomery cascaded H mode filter；Described U-shaped separation of particles module includes a U-tube, U-shaped Temperature control module, magnetized module, adsorption module and demagnetization module it is sequentially installed with on pipe；Described U-shaped separation of particles module and return The top of oil cylinder is connected by an oil returning tube oil inlet pipe；Described inner core is placed in outer barrel, if it is by a top board and bolt stem It is installed on end cap；Described helical flow path is contained in inner core, by an inner core oil inlet pipe between itself and U-shaped separation of particles module Connect；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, and its diameter is little In oil returning tube oil inlet pipe diameter, and it is coaxially disposed with oil returning tube oil inlet pipe；Described filter element is arranged on the inwall of inner core；Outside described The bottom of bucket is provided with a hydraulic oil oil-out.

2. the oil filtering system using full frequency band filtering, magnetizing and adsorb as claimed in claim 1, it is characterised in that: 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 is positioned at resonance cavity volume, its cone Degree 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 insert pipe and Mutually stagger in the position of conical damping hole；The internal layer of described colloid damping layer and outer layer are respectively outer layer elastic thin-wall and internal layer bullet Property thin-walled, 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 interior It is filled with, in interlayer between layer elastic thin-wall, the pure water adding antifreezing agent, in pure water, is suspended with 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. the oil filtering system using full frequency band filtering, magnetizing and adsorb as claimed in claim 1, it is characterised in that: 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.

4. the oil filtering system using full frequency band filtering, magnetizing and adsorb as claimed in claim 1, it is characterised in that: 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.

5. the oil filtering system using full frequency band filtering, magnetizing and adsorb as claimed in claim 1, it is characterised in that: described suction Attached module specifically use homopolarity adjacent type absorbing ring, this homopolarity adjacent type absorbing ring include 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, Both are connected with electric current in opposite direction so that forward solenoid and reverse solenoid adjacent produce like pole；Described irony Magnetic conduction cap is arranged on the inwall of aluminium ring shape pipeline, and it is positioned at forward solenoid and reverse solenoid adjacent and forward Solenoid and the intermediate point of reverse solenoid axis.

6. the oil filtering system using full frequency band filtering, magnetizing and adsorb as claimed in claim 1, it is characterised in that: described suction Attached module specifically uses the homopolarity adjacent type absorbing ring of charged hammer, and the homopolarity adjacent type absorbing ring of this charged hammer includes aluminum matter Circulating line, forward solenoid, reverse solenoid, irony magnetic conduction cap, dividing plate, electric shock hammer and electric magnet；Described forward helical Pipe 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 Like pole is produced with reverse solenoid adjacent；Described irony magnetic conduction cap is arranged on the inwall of aluminium ring shape pipeline, its position In forward solenoid and reverse solenoid adjacent and forward solenoid and the intermediate point of reverse solenoid axis；Described every Plate is between forward solenoid and reverse solenoid；Described electric shock hammer and electric magnet are between dividing plate；Described electric magnet is even Connect and electric shock hammer can be promoted, making electric shock hammer tap aluminium ring shape inner-walls of duct.

7. the oil filtering system using full frequency band filtering, magnetizing and adsorb as claimed in claim 1, it is characterised in that: 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.

8. the oil filtering system using full frequency band filtering, magnetizing and adsorb as claimed in claim 1, it is characterised in that: 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.

9. the oil filtering system using full frequency band filtering, magnetizing and adsorb as claimed in claim 1, it is characterised in that: in described Cylinder center upright be provided with a hollow cylinder, hollow cylinder be arranged over pressure difference indicator, this pressure difference indicator is installed on end Cover；Described inner core oil inlet pipe and the tangent connection of helical flow path.

10. the oil filtering system using full frequency band filtering, magnetizing and adsorb as claimed in claim 1, it is characterised in that: described filter The precision of core is 1-5 micron.