CN105840589A - Filtering device adopting magnetization and adsorption and used for hydraulic system - Google Patents
Filtering device adopting magnetization and adsorption and used for hydraulic system Download PDFInfo
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- CN105840589A CN105840589A CN201610315622.2A CN201610315622A CN105840589A CN 105840589 A CN105840589 A CN 105840589A CN 201610315622 A CN201610315622 A CN 201610315622A CN 105840589 A CN105840589 A CN 105840589A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
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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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- 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
- F15B21/042—Controlling the temperature of the fluid
Abstract
The invention relates to a filtering device adopting magnetization and adsorption and used for a hydraulic system. A U-shaped particle separation module, an oil returning barrel and an outer barrel of the filtering device are sequentially arranged on a bottom plate. The U-shaped particle separation module is provided with a hydraulic oil inlet and comprises a U-shape pipe. A temperature control module, a magnetization module, an adsorption module and a demagnetization module are sequentially arranged on the U-shaped pipe. The upper portion of the U-shaped particle separation module and the upper portion of the oil returning barrel are connected through an oil returning barrel oil inlet pipe. The inner barrel is arranged in the outer barrel and installed on an end cover through a top plate and a plurality of bolts. A spiral runner is contained in the inner barrel and connected with the U-shaped particle separation module through an inner barrel oil inlet pipe. The inner barrel oil inlet pipe is located in the oil returning barrel oil inlet pipe and extends into the center of the U-shaped particle separation module. A filter element is arranged on the inner wall of the inner barrel. A hydraulic oil outlet is formed in the bottom of the outer barrel. The filtering device has the multiple beneficial effects that the filtering performance is good, adaptability and integrity are high, and the service life is long.
Description
[technical field]
The present invention relates to a kind of hydraulic oil filter, be specifically related to a kind of liquid using magnetization and absorption
Pressure system defecator, belongs to technical field of hydraulic equipment.
[background technology]
Statistics both domestic and external show, the fault of hydraulic system about 70%～85% is due to oil
Liquid pollution causes.Solid particle is then the pollutant the most universal in oil contamination, damaging effect is maximum.
The hydraulic system fault caused by solid grain contamination accounts for the 70% of gross contamination fault.In hydraulic system
In particulate pollutant in fluid, metal filings accounting is between 20%～70%.Adopt an effective measure
Filter the solid grain contamination in fluid, be the key of Pollution Control in Hydraulic System, be also system peace
The Reliable guarantee of row for the national games.
Filter is the key element that hydraulic system filters solid grain contamination.Solid in hydraulic oil
Particulate pollutant, outside the precipitable a part of larger particles of oil removal box, filters mainly by oil-filtering apparatus.
Especially high pressure filtering device, is mainly used to filter flow direction control valve and the hydraulic oil of hydraulic cylinder, to protect
Protect the Hydraulic Elements of this kind of contamination resistance difference, therefore the cleannes of hydraulic oil are required higher.
But, the high pressure filter that existing hydraulic system uses has the disadvantage that (1) all kinds of liquid
The cleannes of fluid are required different by pressure element, and the size of the solid particle in fluid is the most each
Differ, need for this multiple dissimilar wave filter to be installed, thus at the diverse location of hydraulic system
Bring cost and the problem installing complexity；(2) filter in hydraulic system mainly uses filter cake
Filter type, during filtration, filtrate is perpendicular to filter element surface flowing, and trapped solid particle is formed
Filter cake progressive additive, the rate of filtration is gradually reduced the most therewith until filtrate stops flowing out, and reduces
The service life of filtering element.
Therefore, for solving above-mentioned technical problem, the employing magnetization of a kind of innovation of necessary offer and suction
Attached hydraulic system defecator, to overcome described defect of the prior art.
[summary of the invention]
For solving above-mentioned technical problem, it is an object of the invention to provide a kind of strainability good, adapt to
Property and integration high, service life length use magnetization and the hydraulic system defecator of absorption.
For achieving the above object, the technical scheme that the present invention takes is: a kind of use magnetization and absorption
Hydraulic system defecator, it 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 is sequentially placed on base plate；Described U-shaped separation of particles module is provided with a hydraulic oil inlet, its bag
Include a U-tube, U-tube is sequentially installed with temperature control module, magnetized module, adsorption module and disappears
Magnetic 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 spiral shell
Eddy flow road is contained in inner core, is connected by an inner core oil inlet pipe between itself and U-shaped separation of particles module；
Described inner core oil inlet pipe is positioned at oil returning tube oil inlet pipe, and extends into the central authorities of U-shaped separation of particles module,
Its diameter is less than oil returning tube oil inlet pipe diameter, and is coaxially disposed with oil returning tube oil inlet pipe；Described filter element sets
Put on the inwall of inner core；The bottom of said tub is provided with a hydraulic oil oil-out.
The hydraulic system defecator using magnetization and absorption of the present invention is further arranged to: described
Temperature control module includes heater, cooler and temperature sensor；Described heater uses band temperature detection
The lubricating oil heater of Chongqing gold letter；Described cooler selects remover for surface evaporation type air cooling, cooler
Finned tube select KLM type finned tube；Temperature sensor uses platinum resistance temperature sensor.
The hydraulic system defecator using magnetization and absorption of the present invention is further arranged to: described
Magnetized module includes that aluminum matter pipeline, some windings, iron shell, flange and some magnetizing currents are defeated
Go out module；Wherein, described some windings are rotating around outside aluminum matter pipeline, and each winding is by positive winding and inverse
Winding forms；Described iron shell is coated on aluminum matter pipeline；Described flange welding is at aluminum matter pipeline
Two ends；Each magnetizing current output module is connected to a winding.
The hydraulic system defecator using magnetization and absorption of the present invention is further arranged to: described
Adsorption module specifically uses homopolarity adjacent type absorbing ring, this homopolarity adjacent type absorbing ring to include aluminium ring shape
Pipeline, forward solenoid, reverse solenoid and irony magnetic conduction cap；Described forward solenoid is with reverse
Solenoid is respectively arranged in aluminium ring shape pipeline, and both are connected with electric current in opposite direction so that forward
Solenoid and reverse solenoid adjacent produce like pole；Described irony magnetic conduction cap is arranged in aluminium ring
On the inwall of shape pipeline, it is positioned at forward solenoid and reverse solenoid adjacent and forward helical
Pipe and the intermediate point of reverse solenoid axis.
The hydraulic system defecator using magnetization and absorption of the present invention is further arranged to: described
Adsorption module specifically uses the homopolarity adjacent type absorbing ring of charged hammer, and the homopolarity of this charged hammer is adjacent
Type absorbing ring include 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
In shape pipeline, both are connected with electric current in opposite direction so that forward solenoid and reverse solenoid are adjacent
Place produces like pole；Described irony magnetic conduction cap is arranged on the inwall of aluminium ring shape pipeline, and it is positioned at
In forward solenoid and reverse solenoid adjacent and forward solenoid and reverse solenoid axis
Between point；Described dividing plate is between forward solenoid and reverse solenoid；Described electric shock hammer and electric magnet
Between dividing plate；Described electric magnet connects and can promote electric shock hammer, makes electric shock hammer tap aluminium ring shape
Inner-walls of duct.
The hydraulic system defecator using magnetization and absorption of the present invention is further arranged to: described
The bottom of oil returning tube is provided with an overflow valve, is provided with an automatically controlled set screw bottom this overflow valve；Described excessive
Stream valve is provided with an oil drain out, and this oil drain out is connected to a fuel tank by pipeline.
The hydraulic system defecator using magnetization and absorption of the present invention is further arranged to: described
The bottom of 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
It is provided with an automatically controlled check-valves.
The hydraulic system defecator using magnetization and absorption of the present invention is further arranged to: described
The center upright of 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.
The hydraulic system defecator using magnetization and absorption of the present invention is further arranged to: described
Inner core oil inlet pipe and the tangent connection of helical flow path.
The hydraulic system defecator using magnetization and absorption of the present invention is also configured to: described filter element
Precision be 1-5 micron.
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 in fluid
Solid particle is to vessel wall motion, at U-shaped separation of particles module outlet, rich in the tube wall of solid particle
Neighbouring fluid is by being back to fuel tank after oil returning tube oil inlet pipe entrance oil returning tube, and the only granule Han trace
The fluid of the pipeline center of footpath microgranule then enters inner core by inner core oil inlet pipe and carries out high-precision filtration, carries
In the high service life of filter element, reduce filtering cost and complexity；Enter the fluid of inner core oil inlet pipe
Flowing into the helical flow path of inner core in the way of tangential influent stream, inner tube wall is filter element, then filtrate is at centrifugal force
Effect under be 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 cartridge surface
Microgranule is implemented to sweep stream effect, it is suppressed that the increase of filter cake thickness, is deposited on the pollution granule bottom inner core
Regularly can be discharged to oil returning tube by automatically controlled check-valves, thus improve filter element service life.
2., by controlling temperature and the magnetic field intensity of hydraulic oil, make the force-magnetized gathering of the granule in fluid
Become bulky grain, and promote colloidal particles decomposition to melt, form efficient absorption by adsorption module, pass through
Residual particles demagnetization is avoided endangering Hydraulic Elements by degaussing gear, so that solid particle is assembled in fluid
Bulky grain is become to move to near-wall.
3. the generation of non-uniform magnetic-field that magnetization needs, need multipair forward and reverse coil to and by different greatly
Little electric current, and current values can numeral setting online.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the hydraulic system defecator using magnetization and absorption of the present invention
Figure.
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 magnetized module in Fig. 2.
Fig. 4 is the structural representation of the winding in Fig. 3.
Fig. 5 is the circuit diagram of the magnetizing current output module in Fig. 3.
Fig. 6 be the adsorption module of Fig. 2 be the structural representation of homopolarity adjacent type absorbing ring.
Fig. 7 be the adsorption module in Fig. 2 be the structural representation of the homopolarity adjacent type absorbing ring of charged hammer
Figure.
[detailed description of the invention]
Referring to shown in Figure of description 1 to accompanying drawing 7, the present invention is that a kind of employing magnetizes and absorption
Hydraulic system defecator, it is by base plate 6, U-shaped separation of particles module 3, oil returning tube 7, inner core
15, several parts such as helical flow path 17, filter element 18, outer barrel 19 and end cap 25 composition.
Wherein, described U-shaped separation of particles module 2, oil returning tube 7, outer barrel 19 are sequentially placed into base plate 6
On.Described U-shaped separation of particles module 3 is provided with one for being passed through the hydraulic oil inlet 1 of hydraulic oil,
It includes a U-tube 31, U-tube 31 is sequentially installed with temperature control module 32, magnetized module 33,
Adsorption module 34 and demagnetization module 35.
Described temperature control module 32 main purpose is to provide optimal magnetization temperature for magnetized module 33
40-50 DEG C, the most also having the effect of fluid viscosity reduction concurrently, it includes heater, cooler and temperature sensing
Device.Described heater uses the lubricating oil heater of the Chongqing gold letter of band temperature detection.Described cooler
Can be selected for remover for surface evaporation type air cooling, the advantage having water-cooled and air cooling concurrently, good heat dissipation effect, use light
Pipe, fluid resistance is little；Cooler fin type is high wing, and finned tube selects KLM type finned tube, passes
Good in thermal property, thermal contact resistance is little, and fin is big with pipe contact area, and laminating closely, firmly, is born
Cold and hot sudden turn of events ability is good, and fin root weather-resistant performance is high；The bank of tubes number optimum of air cooler is 8.
Described temperature sensor uses platinum resistance temperature sensor.
Described magnetized module 33 realizes the force-magnetized of metallic particles, and makes micron-sized metallic particles
Aggregate into bulky grain, it is simple to subsequent adsorbtion separates.Magnetized module 32 it is also required to provide non-homogeneous simultaneously
Magnetic field, carries out magnetization and decomposes the colloidal particles in hydraulic oil, and making colloid particulate breakup is smaller particle
The microgranule of size, pollution abatement.
Described magnetized module 33 is by aluminum matter pipeline 331, some windings 332, iron shell 333, method
Orchid 334 and some magnetizing current output modules 335 form.Wherein, described aluminum matter pipeline 331 makes
Fluid flows there through and by magnetization treatment, and the pcrmeability of aluminum is the lowest, can make in pipeline 331
Obtain higher magnetic field intensity.
Described some windings 332 are rotating around outside aluminum matter pipeline 331, by a diameter of about 1.0mm
Copper wire coating insullac is made.Each winding 332 is all separate setting, respectively by corresponding magnetic
Galvanic current output module 335 controls, and wherein electric current needs different according to system.Due to often enclose around
Organizing 332 separate, the electric current loop that its exit can cause this coil to form is not real " justifying ",
But having individual breach, this can cause the radial distribution of aluminum matter pipeline 331 internal magnetic field uneven, thus shadow
Ring magnetic efficiency.For solving this problem, the often circle winding 332 of this creation is all by positive winding 336 and inverse
Winding 337 forms in order to produce the magnetic field in same polarity direction and make up what breach caused simultaneously
Magnetic field is unbalanced.Size of current in positive winding and inverse winding is equal.In aluminum matter pipeline 331 axis side
Upwards it is arranged with multipair forward and reverse winding, by different electric currents, in order to form the non-homogeneous of aforementioned claim
Magnetic field.
Described iron shell 333 is coated on aluminum matter pipeline 331, and the material of irony can mask big portion
The magnetic flux divided.Described flange 334 is welded on the two ends of aluminum matter pipeline 331, and by flange flange 334
In U-tube 20.
Each magnetizing current output module 335 is connected to a winding 332, and it utilizes digital potentiometer real
The feature of Shi Xiugai resistance, it is achieved the real-time control of non-uniform magnetic-field.Described magnetizing current output module
The circuit theory diagrams of 335 can be found in accompanying drawing 5, and its digital potentiometer used is AD5206, has 6
Passage defeated.Amplifier AD8601 and metal-oxide-semiconductor 2N7002 achieve high-precision electricity by negative feedback
Pressure follows output.Constant High-current output have employed the high voltage of Texas Instrument (TI), the fortune of big electric current
Put OPA 549.
Described adsorption module 34 is used for the absorption big microgranule of magnetic polymeric after magnetized module 33 magnetizes,
It can use homopolarity adjacent type absorbing ring, this homopolarity adjacent type absorbing ring by aluminium ring shape pipeline 341,
The parts compositions such as forward solenoid 342, reverse solenoid 343 and irony magnetic conduction cap 344.Wherein,
Described forward solenoid 342 and reverse solenoid 343 are respectively arranged in aluminium ring shape pipeline 341, and two
Person is connected with electric current in opposite direction so that forward solenoid 342 and reverse solenoid 343 adjacent produce
Raw like pole.Described irony magnetic conduction cap 344 is arranged on the inwall of aluminium ring shape pipeline 341, its
It is positioned at forward solenoid 342 and reverse solenoid 343 adjacent and forward solenoid 342 and anti-
Intermediate point to solenoid 343 axis.
The design principle of described homopolarity adjacent type absorbing ring is as follows: energising forward solenoid 342, reversely
Solenoid 343, adjacent forward solenoid 342, reverse solenoid 343 are connected with electricity in opposite direction
Stream so that forward solenoid 342, reverse solenoid 343 adjacent produce like pole；Meanwhile,
Aluminium ring shape pipeline 341 can improve magnetic circuit, strengthens the magnetic field intensity at inner-walls of duct, strengthens irony
The magnetic conduction cap 344 capture absorbability to granule.Each forward solenoid 342, reverse solenoid 343
Electric current can be different with concentration and change, to obtain optimal adsorption performance according to the size of granule.
Further, the homopolarity adjacent type absorbing ring that described adsorption module 34 may be used without charged hammer,
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, electric shock hammer 346 and electric magnet 347
Form Deng parts.Wherein, described forward solenoid 342 and reverse solenoid 343 are respectively arranged in aluminum
Matter circulating line 341, both are connected with electric current in opposite direction so that forward solenoid 342 is with reverse
Solenoid 343 adjacent produces like pole.Described irony magnetic conduction cap 344 is arranged in aluminium ring shape pipe
On the inwall in road 341, its be positioned at forward solenoid 342 and reverse solenoid 343 adjacent and
Forward solenoid 342 and the intermediate point of reverse solenoid 343 axis.Described electric shock hammer 346 and electromagnetism
Ferrum 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 forward solenoid
342, reverse solenoid 343, adjacent forward solenoid 342, reverse solenoid 343 are connected with direction
Contrary electric current so that forward solenoid 342, reverse solenoid 343 adjacent produce like pole；
Meanwhile, aluminium ring shape pipeline 341 can improve magnetic circuit, strengthens the magnetic field intensity at inner-walls of duct, increases
The strong irony magnetic conduction cap 344 capture absorbability to granule.Each forward solenoid 342, reverse helical
Pipe 343 electric current can be different with concentration and change, to obtain best adsorption according to the size of granule
Energy.And by the setting of electric shock hammer 346, prevent granule bulk deposition at irony magnetic conduction cap 344,
Affect adsorption effect.Now, controlled in electric shock hammer 346 percussion pipeline 341 by electric magnet 347
Wall so that adsorbed granule scatter to both sides.Meanwhile, when cleaning pipeline 341, electric shock hammer
The percussion of 346 can also improve cleaning performance.
Described adsorption module 34 is designed to U-shaped, and when fluid enters U-shaped absorption pipeline, granule exists
Gravity, centrifugal force effect under, to side, tube wall moves, and plus magnetic field force effect, moves radially
Speed is accelerated, and the efficiency of granular absorption is improved；When fluid leaves the rising of U-shaped absorption pipeline,
Gravity and magnetic field force make a concerted effort so that granule diagonally under direction motion, when extending numerical density
Between, improve the efficiency of granular absorption.
Described demagnetization module 35 gives magnetized particles demagnetization, prevents residual magnetism microgranule from being entered by oil returning tube
Oil pipe enters hydraulic circuit, and sensitive to pollution Hydraulic Elements cause damage.
An oil returning tube oil inlet pipe 22 is passed through in the top of described U-shaped separation of particles module 3 and oil returning tube 7
Connect；By U-shaped separation of particles module 3 process after, the fluid of U-tube 31 near-wall rich in
Aggregated particles, is back to fuel tank after entering oil returning tube 7 by oil returning tube oil inlet pipe 22.
The bottom of described oil returning tube 7 is provided with an overflow valve 8, is provided with an automatically controlled tune bottom this overflow valve 8
Joint screw 9；Described overflow valve 8 is provided with an oil drain out 10, and this oil drain out 10 is by pipeline 20 even
It is connected to a fuel tank 11.
Described inner core 15 is placed in outer barrel 19, if it is installed by a top board 13 and bolt stem 21
On end cap 25.Described helical flow path 17 is contained in inner core 15, itself and U-shaped separation of particles mould
Connected by an inner core oil inlet pipe 12 between block 3, specifically, described inner core oil inlet pipe 12 and spiral shell
The tangent connection in eddy flow road 17.The fluid of the U-tube 31 pipeline center only small particle microgranule Han trace is logical
Cross inner core oil inlet pipe 12 to enter inner core 15 and realize high-precision filtration, thus realize solid particle and separate.
Further, described inner core oil inlet pipe 12 is positioned at oil returning tube oil inlet pipe 22, and extends into U-shaped micro-
The central authorities of grain separation module 3, its diameter is less than oil returning tube oil inlet pipe 22 diameter, and enters with oil returning tube
Oil pipe 22 is coaxially disposed.
Further, the bottom of described inner core 15 is rounding mesa-shaped, and it passes through an inner core oil exit pipe 23
Connecting with oil returning tube 7, inner core oil exit pipe 23 is provided with an automatically controlled check-valves 24.Described inner core 15
Center upright is provided with a hollow cylinder 16, hollow cylinder 16 be arranged over pressure difference indicator 14, should
Pressure difference indicator 14 is installed on end cap 25.
Described filter element 18 is arranged on the inwall of inner core 15, and its precision is 1-5 micron.
The bottom of said tub 19 is provided with a hydraulic oil oil-out 5, is incited somebody to action by hydraulic oil oil-out 5
The hydraulic oil filtered is discharged.
In the present invention, due to U-shaped separation of particles module 3, solid particle separation of polymeric in fluid is made
With, in the fluid in U-shaped separation of particles module 3 exit, the fluid at the center only small particle Han trace
Microgranule, this part fluid is flowed into inner core 15 from inner core oil inlet pipe 12 and carries out high-precision filtration；And manage
Fluid near wall is rich in aggregated particles, and this part fluid enters oil return by oil returning tube oil inlet pipe 22
Cylinder 7, then flow back to fuel tank 11 through the oil drain out 10 of overflow valve 8, thus realize solid particle by particle
Footpath shunting filtering.Herein, oil returning tube 7 and overflow valve 8 serve aforesaid macrofiltration, thus save
Save filter number, reduce system cost and complexity.The automatically controlled set screw 9 of overflow valve 8
For regulating oil pressure relief, its pressure is adjusted to slightly below pressure at filtering outlet, to ensure inner core
15 filtering traffics.
It addition, traditional filter mainly uses cake filtration mode, during filtration, filtrate is perpendicular to filter
Element surface flows, and trapped solid particle forms filter cake progressive additive, and the rate of filtration is the most therewith
It is gradually reduced, until filtrate stops flowing out, reduces the service life of filter element.In this present invention
In, carry in the filtrate of small particle microgranule flows in the way of tangential influent stream from inner core oil inlet pipe 12
The helical flow path 17 of cylinder 15, inner core 15 wall of helical duct 17 side is high-precision filter element 18, filter
Liquid is close to filter element 18 surface under the influence of centrifugal force, and filtrate is parallel to the surface of filter element 18 and quickly flows
Dynamic, the hydraulic oil after filtration is then perpendicular to filter element 18 surface direction and flows out to urceolus 19, the two stream
Dynamic direction is orthogonal staggered, therefore is called cross flow and filters.The quickly flowing of filtrate is to being gathered in
The microgranule on filter element 18 surface is applied with shearing and sweeps stream effect, thus inhibits the increase of filter cake thickness,
Making rate of filtration near constant, filter pressure also will not raise with the passing of time, making of filter element
With the life-span thus increase substantially.Along with the accumulation of filtration time, it is deposited at the bottom of inner core 15 inverted round stage
The pollution granule in portion is stepped up, and the rate of filtration slowly declines, unfiltered filtrate edge in inner core 15
The hollow cylinder 16 at center rises, and now, pressure difference indicator 14 works, and monitors the change of its pressure,
That is the stopping state of filter element 18 bottom inner core 15, if exceeding threshold value, then regulate automatically controlled set screw
9 reduce oil pressure relief, 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 deteriorate, thus extend filter element 18 service life.
Use above-mentioned oil-filtering apparatus that backflow is pressed with the processing step of process as follows:
1), backflow force feed enters the temperature control module 32 of U-shaped separation of particles module 3, by temperature control mould
Block 32 regulates oil temperature to optimal magnetization temperature 40-50 DEG C, enters magnetized module 33 afterwards；
2), make the metallic particles in fluid be magnetized in magnetic field by magnetized module 33, and make micro-
The metallic particles of meter level aggregates into bulky grain；Enter adsorption module 34 afterwards；
3), the magnetic polymeric microgranule in oil return is adsorbed by adsorption module 34；Enter demagnetization mould afterwards
Block 35；
4), magnetic particle magnetic is eliminated by demagnetization module 35；
5), the fluid of U-shaped separation of particles module 3 near-wall is entered back by oil returning tube oil inlet pipe 22
Being back to fuel tank after oil cylinder 7, the fluid of the pipeline center containing trace small particle microgranule then passes through inner core
Oil inlet pipe 12 enters inner core 15 and carries out high-precision filtration；
6) fluid, carrying small particle microgranule flows into the spiral flow of inner core 15 in the way of tangential influent stream
Road 17, 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 19, and by the hydraulic oil bottom urceolus 19
Oil-out 5 is discharged.
Above detailed description of the invention is only the preferred embodiment of this creation, not in order to limit this wound
Make, all any modification, equivalent substitution and improvement etc. done within this spirit created and principle,
Within should be included in the protection domain of this creation.
Claims (10)
1. the hydraulic system defecator using magnetization and absorption, 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, and U-tube is sequentially installed with temperature control module, magnetized 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；The bottom of said tub is provided with a hydraulic oil oil-out.
2. the hydraulic system defecator using magnetization and absorption as claimed in claim 1, it is characterised in that: described temperature control module includes heater, cooler and temperature sensor；Described heater uses the lubricating oil heater of the Chongqing gold letter of band temperature detection；Remover for surface evaporation type air cooling selected by described cooler, and the finned tube of cooler selects KLM type finned tube；Temperature sensor uses platinum resistance temperature sensor.
3. the hydraulic system defecator using magnetization and absorption as claimed in claim 1, it is characterised in that: described magnetizing assembly includes aluminum matter pipeline, some windings, iron shell, flange and some magnetizing current output modules；Wherein, described some windings are rotating around outside aluminum matter pipeline, and each winding is made up of positive winding and inverse winding；Described iron shell is coated on aluminum matter pipeline；Described flange welding is at the two ends of aluminum matter pipeline；Each magnetizing current output module is connected to a winding.
4. the hydraulic system defecator using magnetization and absorption as claimed in claim 1, it is characterized in that: described adsorption module specifically uses homopolarity adjacent type absorbing ring, this homopolarity adjacent type absorbing ring to include aluminium ring shape pipeline, forward solenoid, reverse solenoid and irony magnetic conduction cap；Described forward solenoid and reverse solenoid 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.
5. the hydraulic system defecator using magnetization and absorption as claimed in claim 1, it is characterized in that: described adsorption module specifically 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.
6. the hydraulic system defecator using magnetization and absorption as claimed 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.
7. the hydraulic system defecator using magnetization and absorption as claimed 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.
8. the as claimed in claim 1 hydraulic system defecator using magnetization and absorption, 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.
9. the hydraulic system defecator using magnetization and absorption as claimed in claim 1, it is characterised in that: described inner core oil inlet pipe and the tangent connection of helical flow path.
10. the hydraulic system defecator using magnetization and absorption as claimed in claim 1, it is characterised in that: the precision of described filter element is 1-5 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315622.2A CN105840589A (en) | 2016-05-12 | 2016-05-12 | Filtering device adopting magnetization and adsorption and used for hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315622.2A CN105840589A (en) | 2016-05-12 | 2016-05-12 | Filtering device adopting magnetization and adsorption and used for hydraulic system |
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| Publication Number | Publication Date |
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| CN105840589A true CN105840589A (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610315622.2A Withdrawn CN105840589A (en) | 2016-05-12 | 2016-05-12 | Filtering device adopting magnetization and adsorption and used for hydraulic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916162A (en) * | 2018-08-14 | 2018-11-30 | 广东水利电力职业技术学院（广东省水利电力技工学校） | A kind of hydraulic oil impurity collector |
-
2016
- 2016-05-12 CN CN201610315622.2A patent/CN105840589A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916162A (en) * | 2018-08-14 | 2018-11-30 | 广东水利电力职业技术学院（广东省水利电力技工学校） | A kind of hydraulic oil impurity collector |
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Application publication date: 20160810 |