CN105909601A - Filtering device based on electrification, separation, adsorption and rotating magnetic field and used for hydraulic system - Google Patents

Abstract

The invention relates to a filtering device based on electrification, separation, adsorption and a rotating magnetic field and used for a hydraulic system. According to the filtering device, a U-shaped particle separation module, an oil return cylinder and an outer bucket are sequentially arranged on a base plate; a hydraulic oil inlet is formed in the U-shaped particle separation module, the U-shaped particle separation module comprises a U-shaped pipe, and an electrification module, a separation module, a first adsorption module, a rotating magnetic field centrifugation module, a second adsorption module and a demagnetization are sequentially installed on the U-shaped pipe; the U-shaped particle separation module is connected with the upper portion of the oil return cylinder through an oil inlet pipe of the oil return cylinder; an inner cylinder is arranged in the outer bucket and installed on an end cover through a top plate and a plurality of bolts; a spiral passageway is contained in the inner cylinder and connected with the U-shaped particle separation module through an oil inlet pipe of the inner cylinder; the oil inlet pipe of the inner cylinder is located in the oil inlet pipe of the oil return cylinder and extends into the center of the U-shaped particle separation module; and a filter element is arranged on the inner wall of the inner cylinder. The filtering device based on electrification, separation has the advantages of being good in filtering performance, high in adaptability and integrity, long in service life and the like.

Description

Employing electrifies, separates, adsorbs and the hydraulic system defecator of rotating excitation field

[technical field]

The present invention relates to a kind of hydraulic oil filter, be specifically related to a kind of use electrification, Separate, adsorb and the hydraulic system defecator of rotating excitation field, belong to hydraulic test skill Art field.

[background technology]

Statistics both domestic and external show, the fault of hydraulic system about 70%～85% Owing to oil contamination causes.Solid particle is then the most universal in oil contamination, harm The pollutant that effect is maximum.The hydraulic system fault caused by solid grain contamination accounts for always Pollute the 70% of fault.In particulate pollutant in hydraulic system oil liquid, metal filings Accounting is between 20%～70%.The solid particle filtering in fluid of adopting an effective measure is dirty Dye thing, is the key of Pollution Control in Hydraulic System, is also the reliable guarantor of system safety operation Card.

Filter is the key element that hydraulic system filters solid grain contamination.Hydraulic oil In solid grain contamination, outside the precipitable a part of larger particles of oil removal box, mainly by Oil-filtering apparatus filters.Especially high pressure filtering device, is mainly used to filter traffic organising Valve and the hydraulic oil of hydraulic cylinder, to protect the Hydraulic Elements of this kind of contamination resistance difference, because of The cleannes of hydraulic oil are required higher by this.

But, the high pressure filter that existing hydraulic system uses has the disadvantage that (1) The cleannes of fluid are required different by all kinds of Hydraulic Elements, the solid particle in fluid Size the most different, for this need hydraulic system diverse location install many Individual dissimilar wave filter, thus brings cost and the problem installing complexity；(2) Filter in hydraulic system mainly uses cake filtration mode, and during filtration, filtrate is perpendicular to Filter element surface flows, and trapped solid particle forms filter cake progressive additive, mistake Filtering velocity degree is gradually reduced the most therewith until filtrate stops flowing out, and reduces making of filter element Use the life-span.

Therefore, for solving above-mentioned technical problem, the employing of a kind of innovation of necessary offer Electrify, separate, adsorb and the hydraulic system defecator of rotating excitation field, existing to overcome There is the described defect in technology.

[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, the employing of length in service life electrifies, separate, adsorb and The hydraulic system defecator of rotating excitation field.

For achieving the above object, the technical scheme that the present invention takes is: a kind of employing electrification, Separating, adsorb and the hydraulic system defecator of rotating excitation field, it includes base plate, U Type separation of particles module, oil returning tube, inner core, helical flow path, filter element, outer barrel and end Lid；Wherein, described U-shaped separation of particles module, oil returning tube, outer barrel are sequentially placed into base plate On；Described U-shaped separation of particles module is provided with a hydraulic oil inlet, and it includes that one is U-shaped Pipe, U-tube is sequentially installed with electrification module, separation module, the first adsorption module, Rotating excitation field is centrifuged module, the second adsorption module and demagnetization module；Described U-shaped microgranule divides Connected by an oil returning tube oil inlet pipe from the top of module and oil returning tube；Described inner core is placed in In outer barrel, if it is installed on end cap by a top board and bolt stem；Described spiral flow Road 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 U-shaped microgranule The central authorities of separation module, its diameter is less than oil returning tube oil inlet pipe diameter, and enters with oil returning tube Oil pipe coaxial is arranged；Described filter element is arranged on the inwall of inner core, and its precision is that 1-5 is micro- Rice；The bottom of said tub is provided with a hydraulic oil oil-out.

The employing of the present invention electrifies, separate, adsorb and the hydraulic system of rotating excitation field was used Filter device is further arranged to: described electrification module includes some electrodes and an electrode control Device processed；Described some electrodes are installed on the first oil return pipe, and it is respectively connecting to electrode control Device processed.

The employing of the present invention electrifies, separate, adsorb and the hydraulic system of rotating excitation field was used Filter device is further arranged to: described separation module uses uniform magnetic field separation module, should Uniform magnetic field separation module includes aluminum matter pipeline, two magnetic poles and magnetic pole controller；Its In, said two magnetic pole is separately positioned on aluminum matter pipeline, the polarity phase of these two magnetic poles Instead, and in being oppositely arranged；Said two magnetic pole is respectively and electrically connected on magnetic pole controller.

The employing of the present invention electrifies, separate, adsorb and the hydraulic system of rotating excitation field was used Filter device is further arranged to: described separation module uses rotating excitation field separation module, should Rotating excitation field separation module include aluminum matter pipeline, iron shell, three-phase symmetric winding and Three-phase symmetrical current module；Described three-phase symmetric winding is wound on outside aluminum matter pipeline；Described ferrum Matter shell is coated on aluminum matter pipeline；Described three-phase symmetrical current module connects described three-phase Symmetric winding.

The employing of the present invention electrifies, separate, adsorb and the hydraulic system of rotating excitation field was used Filter device is further arranged to: described separation module uses helical pipe magnetic field separation module, This helical pipe magnetic field separation module includes aluminum matter helical pipe, solenoid and solenoid Control circuit；Wherein, described aluminum matter helical pipe is arranged in solenoid；Described helical Pipe and solenoid control circuit are electrically connected with.

The employing of the present invention electrifies, separate, adsorb and the hydraulic system of rotating excitation field was used Filter device is further arranged to: described first adsorption module and second is inhaled adsorption module and used Homopolarity adjacent type absorbing ring, this homopolarity adjacent type absorbing ring includes aluminium ring shape pipeline, just To solenoid, reverse solenoid and irony magnetic conduction cap；Described forward solenoid is with reverse Solenoid is respectively arranged in aluminium ring shape pipeline, and both are connected with electric current in opposite direction, Forward solenoid and reverse solenoid adjacent is made to produce like pole；Described irony is led Magnetic cap is arranged on the inwall of aluminium ring shape pipeline, and it is positioned at forward solenoid and reverse spiral shell Spool adjacent and forward solenoid and the intermediate point of reverse solenoid axis.

The employing of the present invention electrifies, separate, adsorb and the hydraulic system of rotating excitation field was used Filter device is further arranged to: described first adsorption module and second is inhaled adsorption module and used The homopolarity adjacent type absorbing ring of charged hammer, the homopolarity adjacent type absorbing ring of this charged hammer Including aluminium ring shape pipeline, forward solenoid, reverse solenoid, irony magnetic conduction cap, every Plate, electric shock hammer and electric magnet；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 Like pole is produced with reverse solenoid adjacent；Described irony magnetic conduction cap is arranged in aluminum matter On the inwall of circulating line, its be positioned at forward solenoid and reverse solenoid adjacent, with And forward solenoid and the intermediate point of reverse solenoid axis；Described dividing plate is positioned at forward spiral shell Between spool and reverse solenoid；Described electric shock hammer and electric magnet are between dividing plate；Institute State electric magnet connect and electric shock hammer can be promoted, make electric shock hammer tap aluminium ring shape inner-walls of duct.

The employing of the present invention electrifies, separate, adsorb and the hydraulic system of rotating excitation field was used Filter device is further arranged to: described rotating excitation field is centrifuged module and includes aluminum matter pipeline, ferrum Matter 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；Institute State the flange welding two ends at aluminum matter pipeline；Described three-phase symmetrical current module connects described Three-phase symmetric winding.

The employing of the present invention electrifies, separate, adsorb and the hydraulic system of rotating excitation field was used Filter device is further arranged to: the bottom of described oil returning tube is provided with an overflow valve, this overflow An automatically controlled set screw it is provided with bottom 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 employing of the present invention electrifies, separate, adsorb and the hydraulic system of rotating excitation field was used Filter device is also configured to: the bottom of described inner core is rounding mesa-shaped, and it is arranged by an inner core Oil pipe and oil returning tube connect, and inner core oil exit pipe is provided with an automatically controlled check-valves；Described inner core Center upright be 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 company of helical flow path Connect.

Compared with prior art, there is advantages that

1. hydraulic oil realizes the separation of solid particle in U-shaped separation of particles module, makes Solid particle in fluid is to vessel wall motion, at U-shaped separation of particles module outlet, rich The fluid of the near-wall containing solid particle returns after entering oil returning tube by oil returning tube oil inlet pipe Flowing to fuel tank, the only fluid of the pipeline center containing trace small particle microgranule then passes through inner core Oil inlet pipe enters inner core and carries out high-precision filtration, improves the service life of filter element, reduces Filtering cost and complexity；Enter the fluid of inner core oil inlet pipe in the way of tangential influent stream Flowing into the helical flow path of inner core, inner tube wall is filter element, then filtrate is under the influence of centrifugal force Being close to filter core flow, filtrate is parallel to the surface of filter element and quickly flows, the hydraulic pressure after filtration Oil is then perpendicular to cartridge surface direction and flows out to urceolus, and this cross flow filter type is to filter The microgranule of wicking surface is implemented to sweep stream effect, it is suppressed that the increase of filter cake thickness, in being deposited on Pollution granule bottom Tong regularly can be discharged to oil returning tube by automatically controlled check-valves, thus carries High filter element service life.

2. by control hydraulic oil temperature and to electrode apply voltage make in fluid Grain material charged polymeric, and promote colloidal particles decomposition to melt；Formed by adsorption module Efficient absorption；Utilize rotating excitation field that the molecule in fluid " is separated " and gathered Near-wall, captures molecule with adsorbent equipment；By degaussing gear to residual particles Demagnetization is avoided endangering Hydraulic Elements, so that solid particle is gathered into bulky grain fortune in fluid Move near-wall.

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

[accompanying drawing explanation]

Fig. 1 is that the employing of the present invention electrifies, separates, adsorbs and the hydraulic pressure system of rotating excitation field The structural representation of system defecator.

Fig. 2 is the schematic diagram of the U-shaped separation of particles module in Fig. 1.

Fig. 3 is the structural representation of the electrification module in Fig. 2.

Fig. 4 be the separation module in Fig. 2 be the structural representation of uniform magnetic field separation module.

Fig. 5 be the separation module in Fig. 2 be the structural representation of rotating excitation field separation module.

Fig. 6 be the separation module in Fig. 2 be that the structure of helical pipe magnetic field separation module is shown It is intended to.

Fig. 7 be the first adsorption module (the second adsorption module) in Fig. 2 be that homopolarity is adjacent The structural representation of type absorbing ring.

Fig. 8 be the first adsorption module (the second adsorption module) in Fig. 2 be charged hammer The structural representation of homopolarity adjacent type absorbing ring.

Fig. 9 is the structural representation that the rotating excitation field in Fig. 2 is centrifuged module.

[detailed description of the invention]

Refer to shown in Figure of description 1 to accompanying drawing 9, the present invention be a kind of use electrification, Separating, adsorb and the hydraulic system defecator of rotating excitation field, it is by base plate 6, U Type 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 U-shaped separation of particles module 2, oil returning tube 7, outer barrel 19 are put successively On base plate 6.Described U-shaped separation of particles module 3 is provided with one for being passed through hydraulic oil Hydraulic oil inlet 1, it includes a U-tube 31, U-tube 31 is sequentially installed with Electrification module 32, separation module the 33, first adsorption module 34, rotating excitation field centrifugal mold Block the 36, second adsorption module 37 and demagnetization module 35.

Described electrification module 32 makes the metallic particles material in fluid charged, and it is by some electricity Pole 321 and an electrode controller 322 form.Described some electrodes 321 are installed on U On type pipe 31, it is respectively connecting to electrode controller 252.Described electrode controller 322 It is electrically connected with and applies voltage to electrode 321, make the particulate matter in fluid charged.

Described separation module 33 makes the particle charge that quality is bigger gather and is incorporated in centrifugal masterpiece Getting rid of under with to cavity wall, it can use uniform magnetic field separation module, rotating excitation field separation module Or helical pipe magnetic field separation module.

When described separation module 33 uses uniform magnetic field separation module, it is by aluminum matter pipeline 331, two magnetic poles 332 and magnetic pole controller 333 form.Wherein, said two magnetic Pole 332 is separately positioned on aluminum matter pipeline 331, the opposite polarity of these two magnetic poles 332, And in being oppositely arranged.Said two magnetic pole 332 is respectively and electrically connected to magnetic pole controller 333 On.

The design principle of described uniform magnetic field separation module 33 is as follows: charged particle is with speed V flows into uniform magnetic field separation module 33, two magnetic poles of uniform magnetic field separation module 33 332 produce the uniform magnetic field vertical with speed V direction, according to left hand rule, the most charged Granule is perpendicular to velocity attitude and magnetic direction in uniform magnetic field separation module 33 The effect of Loulun magnetism, this power does not change the speed of charged particle, and it only changes charged The direction of motion of granule, makes charged particle under this force to aluminum matter pipeline 331 Vessel wall motion, so that the granule in fluid " separates " out from fluid, to tube wall Assemble, it is simple to subsequent adsorbtion captures.Owing to fluid has certain viscosity, granule is to pipe Wall motor process is also acted on by viscous drag.In order to ensure separating effect, need Regulation magnetic field intensity B make distance tube wall farthest granule can be when the effect of separation module In move at tube wall, quantitative analysis is as follows:

Assuming that particle mass is m, speed is v, and magnetic field intensity is B, and carried charge is q, A diameter of D of separation module, a length of L, then:

Acting on the Loulun magnetism on charged particle is

F_l=qvB

The viscous drag that charged particle is subject to is

F_d=6 π η r v

The radius v band of η hydraulic pressure oil viscosity r charged particle Electricity particle velocity

It not general, it is assumed that the granule in fluid has reached stable state when entering separation module, Then charged particle can be approximated by the time of separation module and represent with following formula

$t_1=\frac{L}{v}$

The charged particle of distance tube wall farthest moves to the time t at tube wall₂Can be by following formula Solve

$D=\frac{mg}{qB-6\mathrm{\π}\mathrm{\η}r}t-{\left(\frac{mg}{qB-6\mathrm{\π}\mathrm{\η}r}\right)}^2(1-e^{-\frac{qB-6\mathrm{\π}\mathrm{\η}r}{m}t})$

Regulation B so that t₁>t₂, i.e. can reach separating effect.

When described separation module 33 uses rotating excitation field separation module, it is by aluminum matter pipeline 331, iron shell 334, three-phase symmetric winding 335 and three-phase symmetrical current module 336 Form Deng parts.Described three-phase symmetric winding 335 is wound on outside aluminum matter pipeline 331.Described Iron shell 334 is coated on aluminum matter pipeline 335.Described three-phase symmetrical current module 336 Connect described three-phase symmetric winding 335.

The design principle of described rotating excitation field separation module 33 is as follows: charged particle is with speed V flows into rotating excitation field separation module 33, and three-phase symmetrical current module 336 makes three-phase symmetrical Flowing through three-phase symmetrical electric current in winding 335, this electric current produces rotation in aluminum matter pipeline 331 Turning magnetic field, charged particle is perpendicular to velocity attitude and magnetic field under rotating excitation field effect The effect of the Loulun magnetism in direction, this power does not change the speed of charged particle, and it only changes The direction of motion of charged particle, makes charged particle the most spirally advance, And to vessel wall motion.Reasonable adjusting magnetic field intensity can make the granule in fluid from fluid " separate " out, be gathered in near-wall, it is simple to subsequent adsorbtion captures.Due to fluid Having certain viscosity, granule is also acted on by viscous drag during vessel wall motion. In order to ensure separating effect, need to make the microgranule on aluminum matter pipeline 331 axis separating Moving in the action time of module at tube wall, quantitative analysis is as follows:

Assuming that particle mass is m, speed is v, and magnetic field intensity is B, and carried charge is q, A diameter of D of separation module, a length of L, then:

Acting on the Loulun magnetism on charged particle is

F_l=qvB

The viscous drag that charged particle is subject to is

F_d=6 π η r v

The radius v band of η hydraulic pressure oil viscosity r charged particle Electricity particle velocity

Assuming that the granule in fluid has reached stable state, then charged particle when entering separation module Can be approximated by the time of separation module and represent with following formula

$t_1=\frac{L}{v}$

Charged particle on conduit axis moves to the time t at tube wall₂Can be solved by following formula

$\frac{D}{2}=\frac{mg}{qB-6\mathrm{\π}\mathrm{\η}r}t-{\left(\frac{mg}{qB-6\mathrm{\π}\mathrm{\η}r}\right)}^2(1-e^{-\frac{qB-6\mathrm{\π}\mathrm{\η}r}{m}t})$

Regulation B so that t₁>t₂, i.e. can reach separating effect.

When described separation module 33 uses helical pipe magnetic field separation module, it is by aluminum matter spiral shell Coil road 338, solenoid 339 and solenoid control circuit 336 form.Wherein, Described aluminum matter helical pipe 338 is arranged in solenoid 339.Described solenoid 339 He Solenoid control circuit 336 is electrically connected with.

The design principle of described helical pipe magnetic field separation module 33 is as follows: carry charged The fluid of grain advances along aluminum matter helical pipe 338, thus produces at pipeline exit and have The eddy flow of certain spin direction, the charged particle of heavier mass rotates along with fluid, from The effect of mental and physical efforts is lower produces the radial motion to tube wall；Simultaneously as aluminum matter helical pipe The Way in of 338 is vertical, with speed v with the axial magnetic field direction of energization solenoid 339 The charged particle entering aluminum matter helical pipe 338 is acted on by Loulun magnetism, hangs down in direction Straight in magnetic direction and the Way in of aluminum matter helical pipe 338.Loulun magnetism makes charged Granule is spinned forward travel in pipeline, due to the entrance side of aluminum matter helical pipe 338 To with magnetic direction close to vertical, charged particle mainly rotates in a circumferential direction motion, and fluid The most unaffected, thus realize granule " separation " from fluid, in order to realize granule Absorption.For ensureing " separation " effect, need to make the microgranule energy on aluminum matter conduit axis Moving within the action time of separation module at tube wall, quantitative analysis is as follows:

Assuming that particle mass is m, speed is v, and carried charge is q, aluminum matter helical pipe A diameter of D, the number of turn of aluminum matter helical pipe is n, the Way in of aluminum matter helical pipe Being θ with the angle in the axial magnetic field direction of energization solenoid, the solenoid number of turn is N, electricity Stream is I, and magnetic field intensity is B, and permeability of vacuum is μ₀, then:

Acting on the Loulun magnetism on charged particle is

F_l=qvB

The viscous drag that charged particle is subject to is

F_d=6 π η r v

The radius v band of η hydraulic pressure oil viscosity r charged particle Electricity particle velocity

Charged particle can be approximated by the time of separation module and represent with following formula

$t_1=\frac{qBnD}{2\mathrm{\π}mvcos\mathrm{\θ}}$

Charged particle on conduit axis moves to the time t at tube wall₂Can be solved by following formula

$\frac{D}{2}=vsin\mathrm{\θ}\frac{m}{qB+6\mathrm{\π}\mathrm{\η}r}(1-e^{-\frac{qB+6\mathrm{\π}\mathrm{\η}r}{m}t})$

Magnetic field intensity within solenoid can be approximately constant

$I=\frac{B}{\mathrm{\μ}N}$

Regulation I so that t₁>t₂, i.e. can reach separating effect.

Described first adsorption module 34 is for adsorbing the magnetic after separated module 33 separates Being polymerized big microgranule, it can use homopolarity adjacent type absorbing ring, this homopolarity adjacent type absorbing ring By aluminium ring shape pipeline 341, forward solenoid 342, reverse solenoid 343 and irony Magnetic conduction cap 344 parts such as grade 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, Forward solenoid 342 and reverse solenoid 343 adjacent is made to produce like pole.Institute Stating irony magnetic conduction cap 344 to be arranged on the inwall of aluminium ring shape pipeline 341, it is just positioned at To 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 It is connected with electric current in opposite direction so that forward solenoid 342, reverse solenoid 343 phase Like pole is produced at Lin；Meanwhile, aluminium ring shape pipeline 341 can improve magnetic circuit, adds Magnetic field intensity at big inner-walls of duct, strengthens irony magnetic conduction cap 344 and inhales the capture of granule Attached ability.Each forward solenoid 342, reverse solenoid 343 electric current can be according to granule Size is different with concentration and changes, to obtain optimal adsorption performance.

Further, described first adsorption module 34 may be used without the homopolarity phase of charged hammer Adjacent type absorbing ring, the homopolarity adjacent type absorbing ring of this charged hammer is by aluminium ring shape pipeline 341, forward solenoid 342, reverse solenoid 343, irony magnetic conduction cap 344, dividing plate 345, the parts composition such as electric shock hammer 346 and electric magnet 347.Wherein, described forward spiral shell Spool 342 and reverse solenoid 343 are respectively arranged in aluminium ring shape pipeline 341, both It is connected with electric current in opposite direction so that forward solenoid 342 and reverse solenoid 343 phase Like pole is produced at Lin.Described irony magnetic conduction cap 344 is arranged in aluminium ring shape pipeline 341 Inwall on, its be positioned at forward solenoid 342 and reverse solenoid 343 adjacent, with And forward solenoid 342 and the intermediate point of reverse solenoid 343 axis.Described electric shock hammer 346 and electric magnet 347 between dividing plate 345.Described electric magnet 347 connects and energy Promote electric shock hammer 346, make 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 is just To solenoid 342, reverse solenoid 343, adjacent forward solenoid 342, reverse spiral shell Spool 343 is 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 intensity at inner-walls of duct, strengthens irony magnetic conduction cap 344 to granule Capture absorbability.Each forward solenoid 342, reverse solenoid 343 electric current can root Size and concentration according to granule are different and change, to obtain optimal adsorption performance.And By the setting of electric shock hammer 346, prevent granule bulk deposition at irony magnetic conduction cap 344, Affect adsorption effect.Now, electric shock hammer 346 percussion pipeline is controlled by electric magnet 347 The inwall of 341 so that adsorbed granule scatter to both sides.Meanwhile, pipe is being cleaned During road 341, the percussion of electric shock hammer 346 can also improve cleaning performance.

Described first adsorption module 34 is designed to U-shaped, enters U-shaped adsorption tube at fluid During road, granule gravity, centrifugal force effect under, to side, tube wall moves, and is adding Magnetic field force effect, moves radially speed and accelerates, and the efficiency of granular absorption is improved；? Fluid leaves U-shaped absorption pipeline when rising, making a concerted effort so that granule edge of gravity and magnetic field force Direction motion obliquely, extends the numerical density time, improves the effect of granular absorption Rate.

Described rotating excitation field is centrifuged module 36 and utilizes rotating excitation field centrifugal not by the first absorption Device 34 absorption small magnetization granule, its by aluminum matter pipeline 361, iron shell 362, Three-phase symmetric winding 363, flange 364 and three-phase symmetrical current module 365 form. Described three-phase symmetric winding 363 is wound on outside aluminum matter pipeline 361.Described iron shell 362 It is coated on aluminum matter pipeline 361.Described flange 364 is welded on the two of aluminum matter pipeline 361 End.Described three-phase symmetrical current module 365 connects described three-phase symmetric winding 363.

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

Described second adsorbent equipment 37 is identical with described first adsorbent equipment 34 structure, merit Can be the most identical with the mechanism of action, it can adsorb rotated magnetic field further and be centrifuged module 36 The granule separated.

Described demagnetization module 35 gives magnetized particles demagnetization, prevents residual magnetism microgranule from passing through back Oil cylinder oil inlet pipe enters hydraulic circuit, and sensitive to pollution Hydraulic Elements cause damage.

The top of described U-shaped separation of particles module 3 and oil returning tube 7 is entered by an oil returning tube Oil pipe 22 connects；After being processed by U-shaped separation of particles module 3, U-tube 31 tube wall Neighbouring fluid, rich in aggregated particles, enters oil returning tube 7 by oil returning tube oil inlet pipe 22 After be back to fuel tank.

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

Described inner core 15 is placed in outer barrel 19, if it is by top board 13 and a bolt stem 21 are installed on end cap 25.Described helical flow path 17 is contained in inner core 15, itself and Connected by an inner core oil inlet pipe 12 between U-shaped separation of particles module 3, specifically, Described inner core oil inlet pipe 12 and the tangent connection of helical flow path 17.U-tube 31 pipeline center The fluid only small particle microgranule Han trace, enter inner core 15 by inner core oil inlet pipe 12 real Existing high-precision filtration, thus realize solid particle and separate.Further, described inner core enters Oil pipe 12 is positioned at oil returning tube oil inlet pipe 22, and extends into U-shaped separation of particles module 3 Central authorities, its diameter be less than oil returning tube oil inlet pipe 22 diameter, and and oil returning tube oil inlet pipe 22 are coaxially disposed.

Further, the bottom of described inner core 15 is rounding mesa-shaped, and it is arranged by an inner core Oil pipe 23 and oil returning tube 7 connect, 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, the top of hollow cylinder 16 Being provided with 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, fuel-displaced by hydraulic oil The hydraulic oil that mouth 5 will filter is discharged.

In the present invention, due to U-shaped separation of particles module 3, solid particle in fluid is divided From polymerization, in the fluid in U-shaped separation of particles module 3 exit, the oil at center The liquid only small particle microgranule Han trace, this part fluid is flowed into inner core from inner core oil inlet pipe 12 15 carry out high-precision filtration；And the fluid of near-wall is rich in aggregated particles, this part oil Liquid enters oil returning tube 7, then the oil drain out 10 through overflow valve 8 by oil returning tube oil inlet pipe 22 Flow back to fuel tank 11, thus realize solid particle by grain diameter shunting filtering.Herein, return Oil cylinder 7 and overflow valve 8 serve aforesaid macrofiltration, thus save filter Number, reduces system cost and complexity.The automatically controlled set screw 9 of overflow valve 8 is used for Regulation oil pressure relief, is adjusted to slightly below pressure at filtering outlet by its pressure, to ensure Inner core 15 filtering traffic.

It addition, traditional filter mainly uses cake filtration mode, during filtration, filtrate is hung down Directly flowing in filter element surface, trapped solid particle forms filter cake progressive additive, The rate of filtration is gradually reduced the most therewith, until filtrate stops flowing out, reduces filter element Service life.In this present invention, carry small particle microgranule from inner core oil inlet pipe 12 Filtrate in the way of tangential influent stream, flow into the helical flow path 17 of inner core 15, helical duct Inner core 15 wall of 17 sides is high-precision filter element 18, and filtrate is the tightest Patch filter element 18 surface, 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, the two flowing Direction is orthogonal staggered, therefore is called cross flow and filters.The quickly flowing of filtrate is to poly- The collection microgranule on filter element 18 surface is applied with shearing and sweeps stream effect, thus inhibits filter cake thick The increase of degree so that rate of filtration near constant, filter pressure also will not stream in time Die and raise, service life of filter element thus increase substantially.Along with tiring out of filtration time Long-pending, it is deposited on the pollution granule bottom inner core 15 inverted round stage and is stepped up, the rate of filtration is delayed Slow decline, in inner core 15, unfiltered filtrate rises along the hollow cylinder 16 at center, this Time, pressure difference indicator 14 works, and monitors the change of its pressure, that is bottom inner core 15 The stopping state of filter element 18, if exceeding threshold value, then regulates automatically controlled set screw 9 and reduces excessive Flowing pressure, and open check-valves 24 simultaneously, make bottom inner core 15 containing more pollution granule Filtrate under differential pressure action, be discharged to oil returning tube 7 by inner core oil exit pipe 23, it is to avoid Bottom filter element 18 blockage deteriorates, thus extends filter element 18 service life.

Use above-mentioned oil filter that backflow is pressed with the processing step of process as follows:

1), backflow force feed enters the electrification module 32 of U-shaped separation of particles module 3, makes Particulate matter in fluid is charged, delivers to separation module 33 afterwards；

2), by segregation apparatus 33 make the charged corpuscle in fluid under the effect of external force to Tube wall is polymerized, and the first adsorbent equipment 34 is delivered in oil return afterwards；

3), the magnetic polymeric microgranule in oil return is adsorbed by the first adsorption module 34, afterwards Oil return is delivered to rotating excitation field and is centrifuged module 36；

4), rotating excitation field is centrifuged module 36 to utilize rotating excitation field to separate unadsorbed magnetization micro- Grain, the second adsorption module 37 is delivered in oil return afterwards；

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

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

7), the fluid of the most U-shaped separation of particles module 3 near-wall is entered by oil returning tube Oil pipe 22 is back to fuel tank after entering oil returning tube 7, and contains the pipeline of trace small particle microgranule The fluid at center then enters inner core 15 by inner core oil inlet pipe 12 and carries out high-precision filtration；

8) fluid, carrying small particle microgranule flows into inner core 15 in the way of tangential influent stream Helical flow path 17, fluid is close to filter core flow under the influence of centrifugal force, and is carried out height Precision filters；

9), the fluid after high-precision filtration enters urceolus 19, and by bottom urceolus 19 Hydraulic oil oil-out 5 discharge.

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

Claims (10)

1. employing electrifies, separates, adsorbs and the hydraulic system defecator of rotating excitation field, it is characterised in that: include base plate, U-shaped separation of particles module, oil returning tube, inner core, helical flow path, filter element, outer barrel and end cap；Wherein, described U-shaped separation of particles module, oil returning tube, outer barrel are sequentially placed on base plate；Described U-shaped separation of particles module is provided with a hydraulic oil inlet, and it includes a U-tube, U-tube is sequentially installed with electrification module, separation module, the first adsorption module, rotating excitation field are centrifuged module, the second adsorption module and demagnetization module；The top of described U-shaped separation of particles module and oil returning tube is connected by an oil returning tube oil inlet pipe；Described inner core is placed in outer barrel, if it is installed on end cap by a top board and bolt stem；Described helical flow path is contained in 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, and its diameter is 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.

Use electrification the most as claimed in claim 1, separate, adsorb and the hydraulic system defecator of rotating excitation field, it is characterised in that: described electrification module includes some electrodes and an electrode controller；Described some electrodes are installed on the first oil return pipe, and it is respectively connecting to electrode controller.

Use electrification the most as claimed in claim 1, separate, adsorb and the hydraulic system defecator of rotating excitation field, it is characterized in that: described separation module uses uniform magnetic field separation module, and this uniform magnetic field separation module includes aluminum matter pipeline, two magnetic poles and magnetic pole controller；Wherein, said two magnetic pole is separately positioned on aluminum matter pipeline, the opposite polarity of these two magnetic poles, and in being oppositely arranged；Said two magnetic pole is respectively and electrically connected on magnetic pole controller.

Use electrification the most as claimed in claim 1, separate, adsorb and the hydraulic system defecator of rotating excitation field, it is characterized in that: described separation module uses rotating excitation field separation module, and this rotating excitation field separation module includes aluminum matter pipeline, iron shell, three-phase symmetric winding 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 three-phase symmetrical current module connects described three-phase symmetric winding.

Use electrification the most as claimed in claim 1, separate, adsorb and the hydraulic system defecator of rotating excitation field, it is characterized in that: described separation module uses helical pipe magnetic field separation module, and this helical pipe magnetic field separation module includes aluminum matter helical pipe, solenoid and solenoid control circuit；Wherein, described aluminum matter helical pipe is arranged in solenoid；Described solenoid and solenoid control circuit are electrically connected with.

Use electrification the most as claimed in claim 1, separate, adsorb and the hydraulic system defecator of rotating excitation field, it is characterized in that: described first adsorption module and second is inhaled adsorption module and used homopolarity adjacent type absorbing ring, and this homopolarity adjacent type absorbing ring includes aluminium ring shape pipeline, forward solenoid, reverse solenoid and irony magnetic conduction cap；Described forward solenoid and reverse solenoid are respectively arranged in aluminium ring shape pipeline, and both are connected with electric current in opposite direction so that forward solenoid and reverse solenoid adjacent produce like pole；Described irony magnetic conduction cap is arranged on the inwall of aluminium ring shape pipeline, and it is positioned at forward solenoid and reverse solenoid adjacent and forward solenoid and the intermediate point of reverse solenoid axis.

Use electrification the most as claimed in claim 1, separate, adsorb and the hydraulic system defecator of rotating excitation field, it is characterized in that: described first adsorption module and second is inhaled adsorption module and used the homopolarity adjacent type absorbing ring of charged hammer, and the homopolarity adjacent type absorbing ring 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 reverse solenoid adjacent and forward solenoid and the intermediate point of 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 tap aluminium ring shape inner-walls of duct.

8. the employing described in claim 1 electrifies, separates, adsorbs and the hydraulic system defecator of rotating excitation field, it is characterised in that: described rotating excitation field is centrifuged module and 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. the employing described in claim 1 electrifies, separates, adsorbs and the hydraulic system defecator of rotating excitation field, 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. the employing described in claim 1 electrifies, separates, adsorbs and the hydraulic system defecator of rotating excitation field, 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.