CN107940158A - Fluid filter and its system - Google Patents
Fluid filter and its system Download PDFInfo
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- CN107940158A CN107940158A CN201711298428.9A CN201711298428A CN107940158A CN 107940158 A CN107940158 A CN 107940158A CN 201711298428 A CN201711298428 A CN 201711298428A CN 107940158 A CN107940158 A CN 107940158A
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- Prior art keywords
- pipeline
- tank
- elastomer
- space
- fluid
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
- F16L55/05—Buffers therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/041—Devices damping pulsations or vibrations in fluids specially adapted for preventing vibrations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
- F16L55/05—Buffers therefor
- F16L55/052—Pneumatic reservoirs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The present invention relates to fluid technical field of filtering, more particularly to a kind of fluid filter and its system.The fluid filter includes filtering tank and elastomer；The filtering tank has space in tank；The elastomer is arranged in the tank in space；When space reaches certain pressure value in the tank, the volume of the elastomer can be compressed；The top or bottom of the filtering tank are provided with into pipeline and outflow pipeline；It is described to be connected respectively with space in the tank with the outflow pipeline into pipeline.The fluid filtering system includes hydraulic pump and fluid filter；The outlet end connection fluid filter of the hydraulic pump enters pipeline.It is an object of the invention to provide fluid filter and its system, to solve the higher technical problem of fluid pulsation existing in the prior art.
Description
Technical field
The present invention relates to fluid technical field of filtering, more particularly to a kind of fluid filter and its system.
Background technology
In current life production, various fluid piping systems are using extensive, such as machinery hydraulic system, fuel system, cold
But water system etc..
Liquid flows in pipeline usually needs to use hydraulic pump, due to the operation principle and liquid of hydraulic pump itself
Difficult compression property, working fluid can produce high frequency periodic pulsation.This pulsation can be propagated along pipeline, and produced alternating force and made pipe
Road and the annex that it is connected produce vibration, and strong vibration can make pipeline fittings and their coupling part loosen or break
Split, cause fluid piping system failure.This vibration can also result in zero of the equipment having higher requirements to flow pulsation
Part vibrates, so as to directly affect equipment precision.Develop in particular with hydraulic technique to high speed, high pressure and high-power direction, liquid
Pulsation in pressure system becomes one of an important factor for hindering hydraulic technique progress and the security of the lives and property.
Therefore, the application provides a kind of new fluid filter and its system regarding to the issue above, to reduce the arteries and veins of fluid
It is dynamic.
The content of the invention
It is an object of the invention to provide fluid filter and its system, to solve fluid pulsation existing in the prior art
Higher technical problem.
Fluid filter provided by the invention, including filtering tank and elastomer；The filtering tank has space in tank；
The elastomer is arranged in the tank in space；When space reaches certain pressure value in the tank, the elasticity
The volume of body can be compressed；
The top or bottom of the filtering tank are provided with into pipeline and outflow pipeline；It is described to enter pipeline and the stream
Go out pipeline to connect with space in the tank respectively.
Alternatively, it is described into pipeline and/or the outflow pipeline is connected with being located at the muffler in space in the tank；
It is alternatively, described into pipeline and/or the outflow pipeline is connected with being located at the elbow in space in the tank.
Alternatively, the muffler is pore type silencer.
Alternatively, the channel cross-sectional area of the muffler not less than it is described into pipeline or it is described outflow pipeline passage cut
1.1 times of area.
Alternatively, before compression the elastomer volume for the volume in space in the tank 30%-90%；
The volume of the elastomer is the 1%-80% of the volume in space in the tank after compression；
The volume of the elastomer is more than the volume of the elastomer after compression before compression.
Alternatively, the filtering tank includes tank body and the filtering lid fastened with tank body sealing；
The filtering lid is provided with described into pipeline and the outflow pipeline.
Alternatively, it is described to be symmetrical arranged into pipeline with the outflow pipeline；And the pipeline that enters includes being sequentially communicated
First, which enters sub- pipeline and second, enters sub- pipeline；It is described first enter sub- pipeline and it is described second enter sub- pipeline in 80 °-
100 ° of settings；
It is described into pipeline and 60% of described outflow the distance between pipeline not less than the filtering cover length.
Alternatively, the top of the filtering tank or bottom are provided with the make-up gas pipe connected with space in the tank
Road；Wherein, the make-up gas pipeline and the both ends for being located at the filtering tank into pipeline.
Alternatively, the material of the elastomer is rubber, plastics or silica gel；
The filtering tank is in cylinder, rectangular column, spherical or irregular shape；
The elastomer is in cylinder, rectangular column, spherical or irregular shape；
The elastomer is solid or hollow body；
The quantity of the elastomer is one or more.
Fluid filtering system provided by the invention, including hydraulic pump and the fluid filter；The hydraulic pump goes out
The connection fluid filter in liquid end enters pipeline.
Beneficial effects of the present invention：
Fluid filter provided by the invention and its system, by being arranged at the elastomer in space in tank, and space in tank
The volume of elastomer can be compressed when reaching certain pressure value, so that space has vibration absorption ability in tank, it is empty in tank to improve
Between vibration absorbing performance, namely can be come the vibrational energy of the fluid in space in tourie by the compressibility of elastomer；Passing through will
The same end of filtering tank is arranged on into pipeline and outflow pipeline, can be with farthest to ensure to enter pipeline and outflow pipeline
Flow into the fluid contact in space in tank；Specific as follows, pulsating fluid flows into space in tank by entering pipeline, with space in tank
Pressure rise to operating pressure, the air in space and elastomer are compressed to the bullet in space in certain space, or tank in tank
Property body be compressed to certain volume, the pulsation of fluid obtains good release, then through flowing out space in pipeline outflow tank, so that pole
The big pulsation for reducing or substantially eliminating fluid.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in describing below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
Put, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the first structure schematic diagram of fluid filter provided in an embodiment of the present invention；
Fig. 2 is the second structure diagram of fluid filter provided in an embodiment of the present invention；
Fig. 3 is the 3rd structure diagram of fluid filter provided in an embodiment of the present invention；
Fig. 4 is the structure diagram of the filtering tank of fluid filter provided in an embodiment of the present invention.
Icon：100- filters tank；Space in 110- tanks；120- enters pipeline；121- first enters sub- pipeline；122- second
Into sub- pipeline；130- flows out pipeline；131- first flows out sub- pipeline；132- second flows out sub- pipeline；140- tank bodies；150- is filtered
Ripple lid；200- elastomers；300- mufflers.
Embodiment
Technical scheme is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, belong to the scope of protection of the invention.
In the description of the present invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Easy to describe the present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Embodiment
Referring to shown in Fig. 1-Fig. 4, a kind of fluid filter is present embodiments provided；Fig. 1-Fig. 3 is provided in this embodiment
The first structure schematic diagram of fluid filter is to the 3rd structure diagram；The unimplanted fluid in space in the tank of Fig. 1 and Fig. 2, Fig. 3's
Space has been injected into the air and elastomer in space in fluid and compressed tanks in tank.Fig. 4 is the knot of filtering tank provided in this embodiment
Structure schematic diagram.
Referring to shown in Fig. 1-Fig. 4, fluid filter provided in this embodiment, applied to fluid circuit, such as mechanical-hydraulic system
The fluid circuits such as system, fuel system, cooling water system；The equipment having higher requirements to flow pulsation is applied especially to, such as machinery
The hydrostatic slideway and hydraulic static spindle applied in hydraulic system on Ultraprecision Equipment.
The fluid filter includes filtering tank 100 and elastomer 200；Filtering tank 100 has space 110 in tank.
Elastomer 200 is arranged in tank in space 110；When space 110 reaches certain pressure value in tank, elastomer 200
Volume can be compressed.
The top of tank 100 or bottom is filtered to be provided with into pipeline 120 and outflow pipeline 130；Into pipeline 120 and stream
Go out pipeline 130 to connect with space in tank 110 respectively.
Fluid filter described in the present embodiment, by being arranged at the elastomer 200 in space 110 in tank, and space in tank
The volume of 110 elastomers 200 when reaching certain pressure value can be compressed, so that space 110 has vibration absorption ability in tank, to carry
The vibration absorbing performance in space 110 in tall can, namely can be come the fluid in space in tourie 110 by the compressibility of elastomer 200
Vibrational energy；The same end of filtering tank 100 is arranged on by the way that pipeline 120 and outflow pipeline 130 will be entered, with maximum
Ensure to enter pipeline 120 and flow out pipeline 130 and can contact with flowing into the fluid in space 110 in tank；Specific as follows, pulsating fluid leads to
Cross into pipeline 120 and flow into space 110 in tank, as the pressure rise in space 110 in tank is to operating pressure, space 110 in tank
Air and elastomer 200 be compressed to the elastomer 200 in space 110 in certain space, or tank and be compressed to certain volume,
The pulsation of fluid obtains good release, then flows out space 110 in tank through flowing out pipeline 130, so that greatly reduction or basic
Eliminate the pulsation of fluid.
In the prior art, hydraulic oil by hydraulic pressure pumping action, becomes highly pressurised liquid and is flowed in pipeline, then pass through in fuel tank
Valve body is controlled to corresponding executive component, is then refluxed for fuel tank；Wherein, the executive component such as oil cylinder of valve body control, cooling
Set, oily hydrostatic spindle, oily hydrostatic slideway etc..Because of the difficult compressibility of liquid and the pulsating nature of hydraulic pump, when hydraulic oil leads in fuel tank
When crossing hydraulic pressure pumping action and becoming highly pressurised liquid and flowed in pipeline, highly pressurised liquid can often produce high frequency periodic pulsation, in hydraulic pressure
Fluid filter is set between pump and valve body, or fluid filter is set between the executive component that valve body and valve body control,
Greatly can reduce or substantially eliminate the pulsation of highly pressurised liquid, thus improve to a certain extent valve body control perform member
The equipment precision such as the stability of part and oily hydrostatic spindle, oily hydrostatic slideway.
In the alternative of the present embodiment, disappear into pipeline 120 and/or outflow pipeline 130 with being located at space 110 in tank
Sound device 300 connects；That is, it is connected into pipeline 120 with the muffler 300 positioned at space 110 in tank, alternatively, outflow pipeline 130
With in tank the muffler 300 in space 110 be connected, alternatively, into pipeline 120 and outflow pipeline 130 respectively with tank
The muffler 300 in space 110 connects.By the damping function of muffler 300, with the arteries and veins for further reducing or eliminating fluid
It is dynamic, further to reduce the vibration of fluid and noise.In addition, muffler 300 can also send out the fluid for flowing therethrough into pipeline 120
Dissipate, jet impulse of the high-pressure fluid to elastomer 200 is avoided, so as to ensure that high-pressure fluid will not be to elasticity to a certain extent
Body 200 causes impact failure.
It is alternatively possible to replace muffler 300 with elbow；That is, into pipeline 120 and/or outflow pipeline 130 with
The elbow connection in space 110 in tank.That is, it is connected into pipeline 120 with the elbow positioned at space 110 in tank, alternatively, outflow
Pipeline 130 with the tank elbow in space 110 be connected, alternatively, into pipeline 120 and flow out pipeline 130 respectively with positioned at tank
The elbow connection in interior space 110.By elbow to change the flow direction of fluid, the pulsation of fluid is reduced to a certain extent, and then
Reduce vibration and the noise of fluid.In addition, elbow can also avoid flowing therethrough into the high-pressure fluid of pipeline 120 to elastomer 200
Jet impulse, so as to ensure that high-pressure fluid will not cause impact failure to elastomer 200 to a certain extent.Alternatively,
Elbow is porous elbow；The flow direction of fluid is damped and changed by porous elbow, to increase fluid path lengths, with certain journey
The pulsation of fluid is reduced on degree, and then reduces vibration and the noise of fluid..
In the alternative of the present embodiment, muffler 300 is pore type silencer.Pore type silencer for example can be to disappear
The housing of sound device 300 has multiple bloops.Such as the thickness of the housing of muffler 300 is the metal sheet less than 1mm, thin
Many micropores are bored on metallic plate, the aperture of these micropores is generally less than 0.5mm, and punching rate is between 30%-90%, to form height
Damping, lower resistance absorbing element.
Alternatively, the inner walls of muffler 300 are fixedly installed multiple protrusions, further to reduce or eliminate fluid
Pulsation, further to reduce the vibration of fluid and noise.
Alternatively, the channel cross-sectional area of muffler 300 is not less than into pipeline 120 or flows out the channel cross-section of pipeline 130
Long-pending 1.1 times.For example, the channel cross-sectional area of muffler 300 is into pipeline 120 or the channel cross-sectional area for flowing out pipeline 130
1.1 times, 1.2 times, 1.25 times, 1.4 times or 1.5 times etc..By setting the channel cross-sectional area of muffler 300 with entering pipeline 120
Or the ratio relation between the channel cross-sectional area of outflow pipeline 130, so that the performance muffler of muffler 300 is optimal, so as to reduce
The performance of fluid pulsation is more excellent.
In the alternative of the present embodiment, the volume of elastomer 200 is the 30%- of the volume in space 110 in tank before compression
90%；For example, the volume of elastomer 200 is 30%, 40%, 55%, 75% or 90% of the volume in space 110 in tank before compression
Deng.
The volume of elastomer 200 is the 1%-80% of the volume in space 110 in tank after compression；For example, elastomer after compression
200 volume is 1%, 20%, 30%, 45%, 65% or 80% etc. of the volume in space 110 in tank.
The volume of elastomer 200 is more than the volume of elastomer 200 after compression before compression.
In the alternative of the present embodiment, filtering tank 100 includes tank body 140 and the filtering lid fastened with the sealing of tank body 140
150；By the way that filtering tank 100 is arranged to tank body 140 and filtering lid 150, in order to filter the production and processing of tank 100.Alternatively,
Between filtering lid 150 and tank body 140 company is sealed by one or more kinds of modes in sealing ring, gasket or fluid sealant
Connect；Further, tank body 140 and/or filtering lid 150 are provided with seal groove, and a part for sealing ring or gasket is arranged on
In seal groove.
Filtering lid 150 is provided with into pipeline 120 and outflow pipeline 130；Pipeline 120 will be entered and outflow pipeline 130 is set
Put on filtering lid 150, to simplify the processing technology of filtering tank 100, reduce the production and processing cost of filtering tank 100；At the same time also
The assembly precision of filtering lid 150 and tank body 140 can be improved.
Alternatively, filtering lid 150 can be connected through a screw thread with tank body 140, can also be connected by screw, be welded, riveting
Connect, pin connection etc. mode connect.
Alternatively, standard pipe thread is arranged into the mouth of pipe of pipeline 120, to be connected with Standard tubing fittings.
Alternatively, the mouth of pipe for flowing out pipeline 130 is arranged to standard pipe thread, to be connected with Standard tubing fittings.
Referring to shown in Fig. 2 and Fig. 3, in the alternative of the present embodiment, symmetrically set into pipeline 120 and outflow pipeline 130
Put；It can be exchanged to enter pipeline 120 with outflow pipeline 130, i.e.,：, can be according to actual operating conditions during using filtering tank 100
Pipeline 120 will be entered to use as outflow pipeline 130, outflow pipeline 130 into pipeline 120 as using, to improve filtering tank
The 100 convenient performances used.
Alternatively, it is shown in Figure 4, include being sequentially communicated first into the entrance of sub- pipeline 121 and second into pipeline 120
Sub- pipeline 122；First, which enters sub- pipeline 121 and second, enters sub- pipeline 122 in 80 ° of -100 ° of settings；Correspondingly, outflow pipeline
130 include being sequentially communicated the sub- pipeline 132 of the sub- outflow of pipeline 131 and second of the first outflow；The sub- pipeline 131 of first outflow and second
Go out sub- pipeline 132 to set in 80 ° -100 °.By that will enter pipeline 120, outflow pipeline 130 sets at a right angle or approximate right angle
Design, to change the flow direction of fluid, to reduce the pulsation of fluid to a certain extent, and then reduce the vibration of fluid and make an uproar
Sound.
Alternatively, it is not less than the 60% of filtering 150 length of lid into the distance between pipeline 120 and outflow pipeline 130, with
It is supplied to pulsating fluid and elastomer 200, seals the more sufficient energy exchange space of gas up for safekeeping, so that pulsating fluid is with sealing gas up for safekeeping
Body and elastomer have larger contact area, so as to make pulsating wave to a certain extent by elastomer and seal gas up for safekeeping and fully inhale
Receive.Into pipeline 120 and outflow the distance between pipeline 130 for example not less than filtering 150 length of lid 60%, 75%, 80%,
88% or 90% etc..
Alternatively, the both sides of the bottom of filtering tank 100 are arranged on into pipeline 120 and outflow pipeline 130, alternatively, into
Pipeline 120 and outflow pipeline 130 are arranged on the both sides of filtering lid 150, to flow through the pulsating fluid path in space 110 in tank foot
It is enough long, so that pulsating fluid has larger contact area with sealing gas and elastomer up for safekeeping, so as to make pulsating wave to a certain extent
By elastomer and seal gas up for safekeeping and fully absorb.
Gas and elastomer have good compressibility, by being arranged in tank the elastomer in space and being sealed up for safekeeping by fluid
The gas positioned at top, with absorb flow into tank in space fluid vibrational energy.Increase elastomer and seal gas and stream up for safekeeping
The contact area of body, can improve the vibration absorbing performance in space in tank.In the alternative of the present embodiment, the top of tank 100 is filtered
Or bottom is provided with the make-up gas pipeline (not shown) connected with space in tank 110；Wherein, make-up gas pipeline with
Into pipeline 120 positioned at the both ends of filtering tank 100.That is, when make-up gas pipeline is positioned at the top of filtering tank 100, into
Enter pipeline 120 and flow out pipeline 130 positioned at the bottom of filtering tank 100；When make-up gas pipeline is positioned at the bottom of filtering tank 100,
Into pipeline 120 and outflow pipeline 130 positioned at the top of filtering tank 100.By make-up gas pipeline, with to space in tank 110
Supplement the gases such as air, nitrogen；To ensure in filtering tank 100 at work, there is the gas for being used for absorbing fluid pulsation all the time
Body space, so that the pulsation of fluid obtains good release.For example, in specific working environment, fluid dissolved air, nitrogen
Deng the gas in space 110 in tank, the gas in space 110 in tank is made to fade away, by make-up gas pipeline make-up gas, with true
The top of fluid is protected all the time there are gas, to improve the reduction of fluid filter pulsation performance.
Alternatively, the valve for control piper break-make is provided with make-up gas pipeline.
In the alternative of the present embodiment, the material of elastomer 200 is rubber, plastics or silica gel, and elastomer 200 may be used also
Think other elastic materials.Alternatively, the material of elastomer 200 is one in acidproof, alkaline-resisting, oil resistant, water-fast and resistance to oxidation etc.
The material of kind or multiple performance.
Alternatively, elastomer 200 is hollow or solid.Alternatively, elastomer 200 is rubber balloon.
In the alternative of the present embodiment, filtering tank 100 is in cylinder, rectangular column, spherical or irregular shape；Filtering
Tank 100 can also be other shapes.
In the alternative of the present embodiment, elastomer 200 is in cylinder, rectangular column, spherical or irregular shape；Elasticity
Body 200 can also be other shapes.
Alternatively, by varying the wall thickness of filtering tank 100, a series of arteries and veins such as low pressure, middle pressure or high pressure be can be designed that
Dynamic fluid filter.
In the present embodiment, pulsating fluid, which passes through, to be entered pipeline 120 and flows into the tank of filtering tank 100 in space 110, by with
The muffler 300 connected into pipeline 120, which diverges, to be come, and jet impulse will not be caused to elastomer 200, with space in tank
To operating pressure, air and elastomer 200 in tank in space 110 are compressed to certain space, pass in and out in tank for 110 pressure rises
The liquid in space 110 reaches balance.Air and elastomer 200 in tank in space 110 have good compressibility, the arteries and veins of fluid
It is dynamic sufficiently to be discharged herein, when the fluid outflow of muffler 300 that warp is connected with outflow pipeline 130 again filters tank 100, pulsation
Substantially it has been eliminated or most of pulsation has been eliminated substantially.
Fluid filter design structure described in the present embodiment is simple, can be pressed by varying size design different flow is different
The compressibility of a series of products such as power, elastomer 200 and air is very good, passes through the compressibility of elastomer 200 and air
It is preferable to absorb the effect of the pulsating vibration of fluid.
The present embodiment also provides a kind of fluid filtering system, including hydraulic pump and fluid filter；The outlet end of hydraulic pump
Connect fluid filter enters pipeline.The fluid filtering system is by using fluid filter, with greatly reduction or basic
The pulsation of high-pressure fluid is eliminated, so as to improve stability and oily hydrostatic spindle, oily hydrostatic slideway of system etc. to a certain extent
Equipment precision.
The fluid filtering system has the advantages that the advantages of fluid filter, the fluid filter herein no longer
Repeated description.
It is illustrated below in order to clearly understand the present embodiment：
Hydrostatic slideway and hydrostatic spindle in Ultraprecision Equipment need high pressure oil, and hydraulic station pressurizes through hydraulic pump and provides hydraulic pressure
Oil；Difficult compressibility and hydraulic pump works principle based on fluid, hydraulic oil can all produce larger pressure pulse wave；And hydraulic oil
Slight pressure fluctuation can all cause vibration equipment, influence equipment precision, therefore the hydrostatic slideway in Ultraprecision Equipment and static pressure master
The pressure of hydraulic oil of the axis to being provided through hydraulic pump is steadily more demanding.
This experiment uses the super precision lathe that certain company develops, and is two secondary hydrostatic slideways on its marble lathe bed, slips
It is hydraulic static spindle on plate.
When being supplied to hydrostatic slideway hydraulic oil through hydraulic pump, the operating pressure of hydraulic oil is 3.4MPa, using liquid
The special high-frequency pressure sensor detection hydraulic oil of pressure detecting, and in oscilloscope display.Oil liquid pressure 0-4MPa is turned by signal
Change corresponding oscillograph 0-5000 persons of outstanding talent volt display.Experiment display, is not accessed before fluid filter, and pressure oscillation is shown in oscillograph
It is shown as 400 millivolts or so；The connecting fluid wave filter between hydraulic pump and hydrostatic slideway, pressure oscillation are shown in oscillograph
It is shown as 10 millivolts or so.Experiment shows that fluid filter is significantly reduced or substantially eliminated and is supplied to hydrostatic slideway hydraulic oil
Pulsation.
Wherein, the show value of the oscillograph of connecting fluid wave filter is smaller, however not excluded that clutter caused by disturbing factor is covered
Measured value.Disturbing factor is, for example,：Oscillograph instrument is to want electricity consumption in itself, testing ground also have hydraulic pump motor electricity consumption,
Device systems electricity consumption；Voltage has fluctuation, and various electric appliances have electromagnetic interference, these factors can all influence oscilloscope display
Value.Through overtesting, when hydraulic pump shuts down, hydraulic oil does not have pressure oscillation completely, and the person of outstanding talent's volt of oscilloscope display 10 left and right is fluctuated,
And frequency is very high, it is mainly electromagnetic interference that can speculate the disturbing factor, and actual pressure fluctuation measured value in theory should
Far smaller than 10 person of outstanding talent's volts, or even close to zero.
The thermostatic hydraulic oil tank that liquid hydrostatic spindle motor is cooled down, its hydraulic pulsation clearly, liquid
Hydrostatic spindle motor can cause the obvious vibration of hydraulic static spindle when cooling down, in the external fluid of the outlet end of thermostatic hydraulic oil tank
After wave filter, hydraulic static spindle does not vibrate substantially；Experiment shows that fluid filter is significantly reduced or substantially eliminated
The pulsation of the hydraulic oil of thermostatic hydraulic oil tank outflow.
In addition, also being tested respectively with cooling water system in fuel oil, experiment scene is quiet with providing liquid through hydraulic pump
Press the scene of guide rail hydraulic oil similar, be not repeated herein；Result of the test show fluid filter can significantly reduce or
Substantially eliminate the pulsation of fluid.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution described in foregoing embodiments, either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of fluid filter, it is characterised in that including filtering tank and elastomer；The filtering tank has space in tank；
The elastomer is arranged in the tank in space；When space reaches certain pressure value in the tank, the elastomer
Volume can be compressed；
The top or bottom of the filtering tank are provided with into pipeline and outflow pipeline；It is described to enter pipeline and the effuser
Road is connected with space in the tank respectively.
2. fluid filter according to claim 1, it is characterised in that described to enter pipeline and/or the outflow pipeline
It is connected with the muffler in the space in the tank；
It is alternatively, described into pipeline and/or the outflow pipeline is connected with being located at the elbow in space in the tank.
3. fluid filter according to claim 2, it is characterised in that the muffler is pore type silencer.
4. fluid filter according to claim 2, it is characterised in that the channel cross-sectional area of the muffler is not less than institute
State the channel cross-sectional area into pipeline or the outflow pipeline 1.1 times.
5. fluid filter according to claim 1, it is characterised in that the volume of the elastomer is the tank before compression
The 30%-90% of the volume in interior space；
The volume of the elastomer is the 1%-80% of the volume in space in the tank after compression；
The volume of the elastomer is more than the volume of the elastomer after compression before compression.
6. fluid filter according to claim 1, it is characterised in that it is described filtering tank include tank body and with the tank body
Seal the filtering lid fastened；
The filtering lid is provided with described into pipeline and the outflow pipeline.
7. fluid filter according to claim 6, it is characterised in that the entrance pipeline and the outflow pipeline are symmetrical
Set；And the entrance pipeline includes being sequentially communicated first into sub- pipeline and the second sub- pipeline of entrance；Described first enters son
Pipeline and described second enters sub- pipeline in 80 ° of -100 ° of settings；
It is described into pipeline and 60% of described outflow the distance between pipeline not less than the filtering cover length.
8. fluid filter according to claim 1, it is characterised in that the top or bottom of the filtering tank are provided with
The make-up gas pipeline connected with space in the tank；Wherein, the make-up gas pipeline and the pipeline that enters are positioned at described
Filter the both ends of tank.
9. fluid filter according to claim 1, it is characterised in that the material of the elastomer for rubber, plastics or
Person's silica gel；
The filtering tank is in cylinder, rectangular column, spherical or irregular shape；
The elastomer is in cylinder, rectangular column, spherical or irregular shape；
The elastomer is solid or hollow body；
The quantity of the elastomer is one or more.
10. a kind of fluid filtering system, it is characterised in that filtered including hydraulic pump and claim 1-9 any one of them fluid
Ripple device；The outlet end connection fluid filter of the hydraulic pump enters pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711298428.9A CN107940158A (en) | 2017-12-08 | 2017-12-08 | Fluid filter and its system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711298428.9A CN107940158A (en) | 2017-12-08 | 2017-12-08 | Fluid filter and its system |
Publications (1)
| Publication Number | Publication Date |
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| CN107940158A true CN107940158A (en) | 2018-04-20 |
Family
ID=61946349
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711298428.9A Pending CN107940158A (en) | 2017-12-08 | 2017-12-08 | Fluid filter and its system |
Country Status (1)
| Country | Link |
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| CN (1) | CN107940158A (en) |
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| CN108953826A (en) * | 2018-09-14 | 2018-12-07 | 东莞市爱思康生物科技有限公司 | A kind of fluid path isolation damper applied to board-washing machine |
| CN113002745A (en) * | 2021-02-02 | 2021-06-22 | 中国船舶重工集团公司第七一九研究所 | Noise elimination cooler and ship cooling system |
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