CN105889205A - Oil filtering method adopting electrification, separation and adsorption for hydraulic system - Google Patents
Oil filtering method adopting electrification, separation and adsorption for hydraulic system Download PDFInfo
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- CN105889205A CN105889205A CN201610311489.3A CN201610311489A CN105889205A CN 105889205 A CN105889205 A CN 105889205A CN 201610311489 A CN201610311489 A CN 201610311489A CN 105889205 A CN105889205 A CN 105889205A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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Abstract
The invention relates to an oil filtering method adopting electrification, separation and adsorption for a hydraulic system. The oil filtering method is characterized in that the separation of solid particles is realized by a U-shaped particle separating module, so that the solid particles in oil move towards a pipe wall; at an outlet of the U-shaped particle separating module, oil which is rich in the solid particles and is near the pipe wall enters an oil return cylinder through an oil feeding pipe of an oil return cylinder module and then reflows to an oil tank; oil containing trace particles with small particle sizes in the center of a pipeline enters an inner cylinder through an oil feeding pipe of the inner cylinder for high-precision filtering, so that the service life of a filter element is prolonged, and the filtering cost and the complexity are reduced; the oil entering the oil feeding pipe of the inner cylinder flows into a spiral flow channel of the inner cylinder in a tangent flow inlet mode; the inner cylinder wall is the filter element; filtrate flows in a mode of tightly attaching to the filter element under the action of a centrifugal force, and quickly flows in parallel to the surface of the filter element; filtered hydraulic oil flows out of an outer cylinder in a direction perpendicular to the surface of the filter element; and contamination particles deposited at the bottom of the inner cylinder are discharged out to the oil return cylinder through an electrical control check valve, thereby prolonging the service life of the filter element.
Description
[technical field]
The present invention relates to a kind of hydraulic oil filtering method, be specifically related to a kind of use electrification,
Separate and the hydraulic system oil strain method of absorption, belong to technical field of hydraulic equipment.
[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
Electrification, the hydraulic system oil strain method separating and adsorbing, of the prior art to overcome
Described defect.
[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 using electrification, separate and adsorb of length in service life
Hydraulic system oil strain method.
For achieving the above object, the technical scheme that the present invention takes is: a kind of employing electrification,
Separating and the hydraulic system oil strain method of absorption, it uses a kind of oil filter, this oil strain
Device includes base plate, U-shaped separation of particles module, oil returning tube, inner core, helical flow path, filter
Core, outer barrel and end cap；Wherein, described U-shaped separation of particles module, oil returning tube, outer
Bucket is sequentially placed on base plate；Described U-shaped separation of particles module is provided with a hydraulic oil inlet,
It includes a U-tube, and U-tube is sequentially installed with electrification module, separation module, suction
Attached module and demagnetization module；The top of described U-shaped separation of particles module and oil returning tube is passed through
One oil returning tube oil inlet pipe connects；Described inner core is placed in outer barrel, its by a top board and
If bolt stem is installed on end cap；Described helical flow path is contained in inner core, and it is with U-shaped
Connected by an inner core oil inlet pipe between separation of particles module；Described inner core oil inlet pipe is positioned at
In oil returning tube oil inlet pipe, and extending into the central authorities of U-shaped separation of particles module, 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 sets
Putting on the inwall of inner core, its precision is 1-5 micron；The bottom of said tub is provided with one
Hydraulic oil oil-out；
It comprises the steps:
1), backflow force feed enters the electrification module of U-shaped separation of particles module, makes fluid
In particulate matter charged, deliver to separation module afterwards；
2), make the charged corpuscle in fluid to pipe under the effect of external force by segregation apparatus
Wall is polymerized, and adsorbent equipment is delivered in oil return afterwards；
3), by the magnetic polymeric microgranule in adsorption module absorption oil return, oil return afterwards is sent
To demagnetization module；
4), magnetic particle magnetic is eliminated by demagnetization module；
5), the fluid of the most U-shaped separation of particles module near-wall passes through oil returning tube oil-feed
Pipe enters and is back to fuel tank after oil returning tube, and the pipeline center containing trace small particle microgranule
Fluid then enters inner core by inner core oil inlet pipe and carries out high-precision filtration；
6) fluid, carrying small particle microgranule flows into the spiral shell of inner core in the way of tangential influent stream
Eddy flow road, fluid is close to filter core flow under the influence of centrifugal force, and is carried out high accuracy mistake
Filter；
7), the fluid after high-precision filtration enters urceolus, and by the hydraulic pressure bottom urceolus
Oil oil-out is discharged.
The hydraulic system oil strain method electrifying, separate and adsorbing that uses of the present invention enters one
Step is: described electrification module includes some electrodes and an electrode controller；Described some
Electrode is installed in U-tube, and it is respectively connecting to electrode controller.
The hydraulic system oil strain method electrifying, separate and adsorbing that uses of the present invention enters one
Step is: described separation module uses uniform magnetic field separation module, this uniform magnetic field splitting die
Block 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 relatively setting
Put；Said two magnetic pole is respectively and electrically connected on magnetic pole controller.
The hydraulic system oil strain method electrifying, separate and adsorbing that uses of the present invention enters one
Step is: described separation module uses rotating excitation field separation module, this rotating excitation field splitting die
Block includes aluminum matter pipeline, iron shell, three-phase symmetric winding and three-phase symmetrical current-mode
Block；Described three-phase symmetric winding is wound on outside aluminum matter pipeline；Described iron shell is coated on aluminum
On matter pipeline；Described three-phase symmetrical current module connects described three-phase symmetric winding.
The hydraulic system oil strain method electrifying, separate and adsorbing that uses of the present invention enters one
Step is: 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；Its
In, described aluminum matter helical pipe is arranged in solenoid；Described solenoid and helical management and control
Circuit processed is electrically connected with.
The hydraulic system oil strain method electrifying, separate and adsorbing that uses of the present invention enters one
Step is: described adsorption module uses homopolarity adjacent type absorbing ring, and the adjacent type of this homopolarity adsorbs
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, both
It is 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, its position
In forward solenoid and reverse solenoid adjacent and forward solenoid and reverse helical
The intermediate point of pipe axis.
The hydraulic system oil strain method electrifying, separate and adsorbing that uses of the present invention enters one
Step is: described adsorption module uses the homopolarity adjacent type absorbing ring of charged hammer, and this is charged
The homopolarity adjacent type absorbing ring of hammer includes aluminium ring shape pipeline, forward solenoid, reversely
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 in opposite direction
Electric current so that forward solenoid and reverse solenoid adjacent produce like pole；Institute
Stating irony magnetic conduction cap to be arranged on the inwall of aluminium ring shape pipeline, it is positioned at forward solenoid
With reverse solenoid adjacent and forward solenoid and the centre of reverse solenoid axis
Point；Described dividing plate is between forward solenoid and reverse solenoid；Described electric shock hammer and
Electric magnet is between dividing plate；Described electric magnet connects and can promote electric shock hammer, makes electric shock
Hammer taps aluminium ring shape inner-walls of duct.
The hydraulic system oil strain method electrifying, separate and adsorbing that uses of the present invention enters one
Step is: the bottom of described oil returning tube is provided with an overflow valve, is provided with an electricity bottom this overflow valve
Control set screw；Described overflow valve is provided with an oil drain out, and this oil drain out is by pipeline even
It is connected to a fuel tank.
The hydraulic system oil strain method electrifying, separate and adsorbing that uses of the present invention is also:
The bottom of described inner core is rounding mesa-shaped, and it is connected by an inner core oil exit pipe and oil returning tube,
Inner core oil exit pipe is provided with an automatically controlled check-valves；The center upright of described inner core is provided with
Heart cylinder, hollow cylinder be arranged over pressure difference indicator, this pressure difference indicator is installed on
On end cap；Described inner core oil inlet pipe and the tangent connection of helical flow path.
Compared with prior art, there is advantages that
1. 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 the oil filter for hydraulic system using electrification, separating and adsorb of the present invention
Structural representation.
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 adsorption module in Fig. 2 be the structural representation of homopolarity adjacent type absorbing ring.
Fig. 8 be the adsorption module in Fig. 2 be the homopolarity adjacent type absorbing ring of charged hammer
Structural representation.
[detailed description of the invention]
Refer to shown in Figure of description 1 to accompanying drawing 8, the present invention be a kind of use electrification,
Separating and the oil filter for hydraulic system of absorption, it is by base plate 6, U-shaped separation of particles mould
Block 3, oil returning tube 7, inner core 15, helical flow path 17, filter element 18, outer barrel 19 and
Several parts compositions such as 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 33, adsorption module 34 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
Fl=qvB
The viscous drag that charged particle is subject to is
Fd=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
The charged particle of distance tube wall farthest moves to the time t at tube wall2Can be by following formula
Solve
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
Fl=qvB
The viscous drag that charged particle is subject to is
Fd=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
Charged particle on conduit axis moves to the time t at tube wall2Can be solved by following formula
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
Fl=qvB
The viscous drag that charged particle is subject to is
Fd=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
Charged particle on conduit axis moves to the time t at tube wall2Can be solved by following formula
Magnetic field intensity within solenoid can be approximately constant
Regulation I so that t1>t2, i.e. can reach separating effect.
Described adsorption module 34 is for adsorbing the magnetic polymeric after separated module 33 separates
Big microgranule, it can use homopolarity adjacent type absorbing ring, and this homopolarity adjacent type absorbing ring is by aluminum
Matter circulating line 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 solenoid 343
Being respectively arranged in aluminium ring shape pipeline 341, both are connected with electric current in opposite direction so that
Forward solenoid 342 and reverse solenoid 343 adjacent produce like pole.Described ferrum
Matter magnetic conduction cap 344 is arranged on the inwall of aluminium ring shape pipeline 341, and it is positioned at forward spiral shell
Spool 342 and reverse solenoid 343 adjacent and forward solenoid 342 and reversely
The intermediate point of 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, the adjacent type of homopolarity that described adsorption module 34 may be used without charged hammer
Absorbing ring, the homopolarity adjacent type absorbing ring of this charged hammer by aluminium ring shape pipeline 341,
Forward solenoid 342, reverse solenoid 343, irony magnetic conduction cap 344, dividing plate 345,
The parts compositions such as electric shock hammer 346 and electric magnet 347.Wherein, described forward solenoid
342 and reverse solenoid 343 be respectively arranged in aluminium ring shape pipeline 341, both sides of being connected with
To contrary electric current so that forward solenoid 342 and reverse solenoid 343 adjacent produce
Raw like pole.Described irony magnetic conduction cap 344 is arranged in the interior of aluminium ring shape pipeline 341
On wall, it is positioned at forward solenoid 342 and reverse solenoid 343 adjacent, Yi Jizheng
To solenoid 342 and the intermediate point of reverse solenoid 343 axis.Described electric shock hammer 346
With electric magnet 347 is 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 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 adsorption module 34 is designed to U-shaped, when fluid enters U-shaped absorption pipeline,
Granule gravity, centrifugal force effect under, to side, tube wall moves, plus magnetic field force
Effect, moves radially speed and accelerates, and the efficiency of granular absorption is improved；Fluid from
Open U-shaped absorption pipeline when rising, gravity and magnetic field force make a concerted effort so that granule diagonally under
Direction motion, extend the numerical density time, improve the efficiency of granular absorption.
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 adsorbent equipment 34 is delivered in oil return afterwards；
3), the magnetic polymeric microgranule in oil return, oil return afterwards are adsorbed by adsorption module 34
Deliver to demagnetization module 35；
4), magnetic particle magnetic is eliminated by demagnetization module 35；
5), 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；
6) 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；
7), 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. the hydraulic system oil strain method using electrification, separating and adsorb, it is characterised in that: it uses a kind of oil filter, and this oil filter includes 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, and U-tube is sequentially installed with electrification module, separation module, 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；
It comprises the steps:
1), backflow force feed enters the electrification module of U-shaped separation of particles module, makes the particulate matter in fluid charged, delivers to separation module afterwards；
2), making the charged corpuscle in fluid be polymerized to tube wall under the effect of external force by segregation apparatus, adsorbent equipment is delivered in oil return afterwards；
3), by the magnetic polymeric microgranule in adsorption module absorption oil return, demagnetization module is delivered in oil return afterwards；
4), magnetic particle magnetic is eliminated by demagnetization module；
5), the fluid of the most U-shaped separation of particles module near-wall is back to fuel tank after entering oil returning tube by oil returning tube oil inlet pipe, and the fluid of the pipeline center containing trace small particle microgranule then enters inner core by inner core oil inlet pipe and carries out high-precision filtration；
6), the fluid carrying small particle microgranule flows into the helical flow path of inner core in the way of tangential influent stream, and fluid is close to filter core flow under the influence of centrifugal force, and is carried out high-precision filtration；
7), the fluid after high-precision filtration enters urceolus, and is discharged by the hydraulic oil oil-out bottom urceolus.
The hydraulic system oil strain method using electrification the most as claimed in claim 1, separating and adsorb, it is characterised in that: described electrification module includes some electrodes and an electrode controller；Described some electrodes are installed in U-tube, and it is respectively connecting to electrode controller.
The hydraulic system oil strain method using electrification the most as claimed in claim 1, separating and adsorb, it is characterised 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.
The hydraulic system oil strain method using electrification the most as claimed in claim 1, separating and adsorb, 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.
The hydraulic system oil strain method using electrification the most as claimed in claim 1, separating and adsorb, 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.
The hydraulic system oil strain method using electrification the most as claimed in claim 1, separating and adsorb, it is characterized in that: described adsorption module uses 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.
The hydraulic system oil strain method using electrification the most as claimed in claim 1, separating and adsorb, it is characterized in that: described adsorption module uses the homopolarity adjacent type absorbing ring of charged hammer, 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 hydraulic system oil strain method using electrification, separating and adsorb described in claim 1, 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.
9. the hydraulic system oil strain method using electrification, separating and adsorb described in claim 1, it is characterised in that: the bottom of described inner core is rounding mesa-shaped, and it is connected by an inner core oil exit pipe and oil returning tube, and inner core oil exit pipe is provided with an automatically controlled check-valves.
10. use electrification, the hydraulic system oil strain method that separates and adsorb described in claim 1, it is characterised in that: 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.
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| CN201610311489.3A CN105889205A (en) | 2016-05-12 | 2016-05-12 | Oil filtering method adopting electrification, separation and adsorption for hydraulic system |
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| CN201610311489.3A CN105889205A (en) | 2016-05-12 | 2016-05-12 | Oil filtering method adopting electrification, separation and adsorption for hydraulic system |
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