CN205665192U - Device based on particle separation in micro -fluidic chip lubricating oil - Google Patents
Device based on particle separation in micro -fluidic chip lubricating oil Download PDFInfo
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- CN205665192U CN205665192U CN201620561628.3U CN201620561628U CN205665192U CN 205665192 U CN205665192 U CN 205665192U CN 201620561628 U CN201620561628 U CN 201620561628U CN 205665192 U CN205665192 U CN 205665192U
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- fluidic chip
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- lubricating oil
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Abstract
The utility model discloses a device based on particle separation in micro -fluidic chip lubricating oil, its characterized in that includes: micro -fluidic chip, micro -fluidic chip includes that top -down sets gradually micro -fluidic chip main part and base plate, it is used for waiting to detect the main entrance that fluid flows to be equipped with one in the micro -fluidic chip main part, still be equipped with in the micro -fluidic chip main part and run through the electrode of main entrance lay passageway and many symmetries set up in the separation passageway of main entrance both sides, power module and lays the detection electrode that the electrode was laid in the passageway is linked together, changes detection area electric field strength through adjustment power module voltage swing, micro -injection pump, with main channel tail end communicates with each other for keep waste liquid district vacuum, the led ultraviolet lamp, set up in directly over the micro -fluidic chip. The utility model discloses equipment takes up an area of for a short time, and principle simple and practical nature is strong, can realize the low cost, carry out on -line measuring simply, fast.
Description
Technical field
This utility model relates to separating what different types of metal and metal separated with non-metallic particle from lubricating oil
Technology, a kind of device separated based on granule in micro-fluidic chip lubricating oil.
Background technology
Lubricating oil is widely applied in the middle of plant equipment, and lubricating oil contains substantial amounts of pollutant, wherein with solid
The harm of body pollution thing is the most serious.Metallic particles hardness in solid pollutant is higher, easily causes plant equipment motion portion
The abrasion of part, causes mechanical breakdown.In addition by characteristics such as lubricant oil metal and the material of non-metallic particle, quantity and sizes
Research, can effectively evaluate the duty of plant equipment, simultaneously it is also predicted that the malfunction of this plant equipment.
At present, plant equipment is improved safety in operation, reduce operation and maintenance cost, it is achieved running status detects in real time
Requirement more and more higher.Now, lubricating oil is carried out on-line checking to be just particularly important.The detection technique of online lubricating oil is closed
Key is to detect sensor.Operation principle according to sensor is different, and lubricating oil detects and can be divided into following a few class: optics side
Method, acoustic method, physico-chemical analysis method, on-line ferrograph instrument and other method and the combination between them.This several method is all
There is a respective feature:
It is short that optical means has the detection time, can realize measurement in real time, and device integration is high, and in engineering practice, application is wide
The advantage such as general；But metal all can affect measurement result with the gathering of non-metallic particle, also bubble and moisture, and some is not
The fluid of printing opacity also can limit the actual application of this method.
Acoustic method can distinguish the pollutant such as the granule in lubricating oil, water droplet, and the technical difficulty of this method is to pass
The installation of sensor and the selection of ultrasonic frequency, the vibration that its plant equipment operationally produces simultaneously can reduce the inspection of sensor
Surveying precision, the price of detector is the most costly.
Physico-chemical analysis method refers to utilize detecting instrument to the viscosity of oil sample, flash-point, moisture, acid number, gold in laboratory
Belong to the physical and chemical indexs such as abrasive particle and carry out the method that detection is analyzed.This method accuracy of detection is high, can draw each of lubricating oil respectively
Item performance indications, make comprehensively analysis, thus effectively extend the replacing time limit of lubricating oil.Conventional physics and chemistry analysis of oil instrument has
Viscometer, titrator etc..Due to physico-chemical analysis method detection time length, cost is high, operating process is complicated, be served only for laboratory survey
Amount, is not suitable for the quick online detection to fluid.
On-line ferrograph instrument technology is to utilize magnetic gradient and gravity gradient to separate and metal worn particle by greatly from lubricating oil
The oil liquid detection technology of minispread.It can interpolate that out size and the property type of wear particle in fluid.But quantitatively ferrum spectrum
Having its inaccuracy, Debris Analysis relies primarily on know-how and the practical experience of operator, samples the most representative, makes
Ferrum spectrum also needs, with for a long time, to analyze speed the highest.
Above-mentioned online lubricating oil detection method all also exists certain deficiency, it is impossible to fully meet low cost, quickly,
The testing requirement such as sensitive.
Utility model content
According to technical problem set forth above, and provide a kind of dress separated based on granule in micro-fluidic chip lubricating oil
Put.This utility model mainly utilizes microflow control technique, photoelectric effect principle and electric field action principle, isolates in lubricating oil not
Metal and metal with type separate with non-metallic particle, thus are reached for the oil analysis after separating and provide reference value,
Quickly carry out the purpose of on-line checking.
The technological means that this utility model uses is as follows:
A kind of device separated based on granule in micro-fluidic chip lubricating oil, it is characterised in that including:
Micro-fluidic chip, described micro-fluidic chip includes setting gradually micro-fluidic chip body and substrate from top to bottom；Institute
State micro-fluidic chip body to be provided with one and also set on the main channel that fluid to be detected flows, described micro-fluidic chip body
The electrode running through described main channel is had to lay passage and a plurality of split tunnel being symmetricly set in both sides, described main channel；
Supply module, is connected with being placed in the detecting electrode that described electrode lays in passage, by adjusting supply module
Voltage swing changes detection region electric field intensity；
Micro-injection pump, communicates with described main channel tail end, is used for keeping waste vacuum；
Led uviol lamp, is arranged at the surface of described micro-fluidic chip.
Above-mentioned supply module is mainly used in adjusting electric field intensity, thus ensures to pass through electric field force by the band in fluid
Electric metal granule is separated；Above-mentioned micro-injection pump can be by regulation and control, suction sky at waste liquid hole at a given speed
Gas, makes to keep at waste liquid hole a vacuum.Owing to the pressure in waste liquid hole is compared with the pressure in the sorting hole of his split tunnel
Low, such that it is able to make fluid to be detected successfully flow in main channel, it is ensured that fluid will not flow to split tunnel, for charged gold
The separation of metal particles provides essential condition；Led uviol lamp, it is ensured that whole microfluidic channel is all in the range of exposures of ultraviolet light
In.According to photoelectric effect principle, irradiate lubricating oil sample to be detected, the metallic particles meeting in fluid with the ultraviolet light of certain frequency
Being excited and ejected electron by ultraviolet, thus become positively charged, the electricity that different metallic particles is carried is differentiated, when
When this sample fluid is by detection region, charged metallic particles can be attracted in split tunnel by the effect of electric field force,
And the electric field force suffered by different metallic particles and initial velocity difference, the most different metallic particles can produce different
Movement locus, different split tunnels can be flowed to.Non-metallic particle, the most not by electric field force effect, can keep original
The direction of motion flows to waste liquid hole.Thus complete to separate with non-metallic particle between different metal granule.The frequency irradiating light must
Suitable selection need be carried out, it is ensured that the metallic particles in fluid can be excited, all must protect in whole experimentation simultaneously
Hold illumination.
Further, described main channel includes the feed liquor throwing sample for lubricating oil sample being arranged at end, described main channel
Hole and the waste liquid hole being arranged at described main channel tail end, described main channel is oblong channel.
Further, described detecting electrode is individually positioned in both sides, described main channel, and two described detecting electrodes are specification
Identical cylinder copper rod.
Further, described split tunnel uses two rows to separate by changing the both positive and negative polarity exchange of described detecting electrode
Passage, described split tunnel tail end is provided with sorting hole.Due to different metal granule speed in the electric field and stressing conditions not
With, split tunnel arranges a plurality of, and different metallic particles can be made to flow to different split tunnels, the particular number of split tunnel with
And size can be modified with experimental practical situation.
Compared with prior art, this technology has an advantages below:
1. use micro-fluidic chip as the metallic particles in oil and water separation and non-metallic particle due to this utility model
Detection platform, relevant detection equipment volume is little, and relative to large-scale valuable detection equipment, this utility model has structure letter
The features such as list, processing ease and portability.
2. this utility model is used technology and principle are simple, overcome equipment complicated, and the shortcomings such as efficiency is low are the most micro-
Fluid channel design is easy, has the strongest actual operation.
3. this utility model uses photoelectric effect to excite the metallic particles in fluid, and being that one is the most simple, fast makes
The mode that metallic particles band powers on.
This utility model can realize low cost, simply and rapidly carry out on-line checking for the foregoing reasons, can be at lubricating oil
The fields such as liquid detection are widely popularized.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is
Embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is that this utility model structure based on micro-fluidic chip Metals In Lubricating with non-metallic particle segregation apparatus is shown
It is intended to；
Fig. 2 is the structural representation of the micro-fluidic detection chip of this utility model；
In figure: 1, inlet opening, the 2, first sorting hole, the 3, second sorting hole, the 4, the 3rd sorting hole, the 5, the 4th sorting hole, 6,
5th sorting hole, the 7, the 6th sorting hole, 8, waste liquid hole, the 9, first detecting electrode, the 10, second detecting electrode, 11, supply module,
12, micro-injection pump, 13, micro-fluidic chip body, 14, led uviol lamp, 15, substrate.
Detailed description of the invention
In order to the technical scheme making this utility model be used, purpose and advantage are clearer, below in conjunction with this practicality
This utility model is further described by new embodiment accompanying drawing.Obviously, described embodiment is this utility model one
Divide embodiment rather than whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not having
Make the every other embodiment obtained under creative work premise, broadly fall into the scope of this utility model protection.
A kind of device separated based on granule in micro-fluidic chip lubricating oil, including:
Micro-fluidic chip, described micro-fluidic chip includes setting gradually micro-fluidic chip body 13 and substrate from top to bottom
15；Described micro-fluidic chip body 13 be provided with one for the main channel that fluid to be detected flows, described micro-fluidic chip master
Be additionally provided with on body 13 run through the electrode of described main channel lay passage and a plurality of be symmetricly set in both sides, described main channel point
From passage；Described main channel includes being arranged at throwing the inlet opening 1 of sample for lubricating oil sample and arranging of end, described main channel
In the waste liquid hole 8 of described main channel tail end, described main channel is oblong channel.Described detecting electrode is individually positioned in described master
Passage both sides, two described detecting electrodes are the cylinder copper rod that specification is identical.Described split tunnel is by changing described detection electricity
The both positive and negative polarity exchange of pole uses two rows split tunnel, and described split tunnel tail end is provided with sorting hole.
Supply module 11, is connected with being placed in the detecting electrode that described electrode lays in passage, by adjusting power supply mould
Block 11 voltage swing changes detection region electric field intensity；
Micro-injection pump 12, communicates with described main channel tail end, is used for keeping waste vacuum；
Led uviol lamp 14, is arranged at the surface of described micro-fluidic chip 13.
Embodiment 1
As it is shown in figure 1, be the dress separated with non-metallic particle between Metals In Lubricating granule based on micro-fluidic chip
Put.Main by micro-fluidic chip, copper electrode and additional supply module 11, micro-injection pump 12, the led uviol lamp 14 of suitable frequency
Composition.As in figure 2 it is shown, be micro-fluidic chip body 13 and the structural representation of substrate 15, wherein micro-fluidic chip body 13 by
PDMS (polydimethylsiloxane) material is made, and substrate 15 is made up of PMMA (polymethyl methacrylate), i.e. lucite.
There is between PDMS (polydimethylsiloxane) material and PMMA material good adhesiveness, and there is good chemical inertness.
Having one in micro-fluidic chip body is main channel, is the passage of detection fluid sample；Another is to be symmetricly set on main channel
The split tunnel for the metallic particles in oil and water separation of both sides.
Figure it is seen that be fluid sample inlet opening 1 the most successively, two copper electrode (the first detecting electrodes 9
With the second detecting electrode 10), 6 split tunnels and the corresponding sorting hole of every split tunnel (be respectively the first sorting hole 2,
Second sorting hole the 3, the 3rd sorting hole the 4, the 4th sorting hole the 5, the 5th sorting hole 6 and the 6th sorting hole 7), and it is arranged on main logical
The waste liquid hole 8 of road tail end.
In conjunction with Fig. 1 and Fig. 2, different metal in the fluid based on micro-fluidic chip described in this utility model embodiment is described
With the operation principle of non-metallic particle segregation apparatus between granule:
First the program of micro-injection pump 12 is mixed up so that it is the speed keeping constant is bled in waste liquid hole 8, such waste liquid
Hole 8 will keep low pressure relative to other sorting holes of micro-fluidic chip body 13, forms certain vacuum.Beat led purple simultaneously
The switch of outer lamp 14, during whole detection, led uviol lamp 14 always holding opens state.With pipettor toward fluid sample
Dripping appropriate fluid sample at inlet opening 1, because being now a relative low pressure at waste liquid hole 8, instilling the oil of inlet opening 1
Liquid sample will flow lentamente in main channel.When this fluid sample flows through detection mouth, because the pressure now in sorting hole
Power is higher than waste liquid hole 8, so fluid sample can keep original flow direction, without flowing to split tunnel.Simultaneously by outward
Add supply module 11 and adjust the electric field intensity in detection region, make the charged metal granule in fluid successfully to separate from fluid
Out, simultaneously because the charge number carried of different metallic particles is different, the electric field force that they are subject to also has district
Not, movement locus when therefore they flow to split tunnel is also different, can distinguish metallic particles according to this.And
Non-metallic particle will not be kept the original direction of motion by the effect of electric field force, along with fluid flows to waste liquid hole 8.
This utility model embodiment provide a kind of based between micro-fluidic chip Metals In Lubricating granule with nonmetal
The method and apparatus that grain separates.The method is to put forward based in microflow control technique, photoelectric effect principle and electric field action principle
, used technology and principle are fairly simple, and the equipment of this detection device is fairly simple, it is simple to carry, and the one-tenth of detection
This is low, it is adaptable to on-line checking.Provide for the differentiation between metallic particles and the differentiation of non-metallic particle and metallic particles
A kind of new detection method.
The above, only this utility model preferably detailed description of the invention, but protection domain of the present utility model is not
Being confined to this, any those familiar with the art is in the technical scope that this utility model discloses, according to this practicality
Novel technical scheme and utility model thereof conceive equivalent or change in addition, all should contain at protection model of the present utility model
Within enclosing.
Claims (4)
1. the device separated based on granule in micro-fluidic chip lubricating oil, it is characterised in that including:
Micro-fluidic chip, described micro-fluidic chip includes setting gradually micro-fluidic chip body and substrate from top to bottom；Described micro-
Fluidic chip main body is provided with one and is additionally provided with on the main channel that fluid to be detected flows, described micro-fluidic chip body and passes through
The electrode wearing described main channel lays passage and a plurality of split tunnel being symmetricly set in both sides, described main channel；
Supply module, is connected with being placed in the detecting electrode that described electrode lays in passage, by adjusting supply module voltage
Size changes detection region electric field intensity；
Micro-injection pump, communicates with described main channel tail end, is used for keeping waste vacuum；
Led uviol lamp, is arranged at the surface of described micro-fluidic chip.
The device separated based on granule in micro-fluidic chip lubricating oil the most according to claim 1, it is characterised in that: described
Main channel includes being arranged at throwing the inlet opening of sample for lubricating oil sample and being arranged at described main channel of end, described main channel
The waste liquid hole of tail end, described main channel is oblong channel.
The device separated based on granule in micro-fluidic chip lubricating oil the most according to claim 1, it is characterised in that: described
Detecting electrode is individually positioned in both sides, described main channel, and two described detecting electrodes are the cylinder copper rod that specification is identical.
The device separated based on granule in micro-fluidic chip lubricating oil the most according to claim 3, it is characterised in that: described
Split tunnel uses two rows split tunnel, described split tunnel tail end by changing the both positive and negative polarity exchange of described detecting electrode
It is provided with sorting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620561628.3U CN205665192U (en) | 2016-06-08 | 2016-06-08 | Device based on particle separation in micro -fluidic chip lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620561628.3U CN205665192U (en) | 2016-06-08 | 2016-06-08 | Device based on particle separation in micro -fluidic chip lubricating oil |
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| Publication Number | Publication Date |
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| CN205665192U true CN205665192U (en) | 2016-10-26 |
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| CN201620561628.3U Withdrawn - After Issue CN205665192U (en) | 2016-06-08 | 2016-06-08 | Device based on particle separation in micro -fluidic chip lubricating oil |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066343A (en) * | 2016-06-08 | 2016-11-02 | 大连海事大学 | The method and apparatus separated based on granule in micro-fluidic chip lubricating oil |
| CN108279192A (en) * | 2018-01-29 | 2018-07-13 | 北京市劳动保护科学研究所 | A kind of pellet grain diameter grading device |
| CN108871910A (en) * | 2018-09-13 | 2018-11-23 | 大连海事大学 | Microparticle separator and method in a kind of lubricating oil for inductance detection method |
| CN109289953A (en) * | 2018-11-14 | 2019-02-01 | 哈尔滨工业大学 | Minute yardstick particle separating chips and the method for separating minute yardstick particle using the chip |
| CN109813771A (en) * | 2019-03-14 | 2019-05-28 | 大连海事大学 | A kind of magnetocapacitance ferromagnetism wear particle detection sensor and production method |
-
2016
- 2016-06-08 CN CN201620561628.3U patent/CN205665192U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066343A (en) * | 2016-06-08 | 2016-11-02 | 大连海事大学 | The method and apparatus separated based on granule in micro-fluidic chip lubricating oil |
| CN106066343B (en) * | 2016-06-08 | 2019-02-05 | 大连海事大学 | The method and apparatus separated based on particle in micro-fluidic chip lubricating oil |
| CN108279192A (en) * | 2018-01-29 | 2018-07-13 | 北京市劳动保护科学研究所 | A kind of pellet grain diameter grading device |
| CN108871910A (en) * | 2018-09-13 | 2018-11-23 | 大连海事大学 | Microparticle separator and method in a kind of lubricating oil for inductance detection method |
| CN108871910B (en) * | 2018-09-13 | 2024-01-26 | 大连海事大学 | Device and method for separating microparticles in lubricating oil for inductance detection method |
| CN109289953A (en) * | 2018-11-14 | 2019-02-01 | 哈尔滨工业大学 | Minute yardstick particle separating chips and the method for separating minute yardstick particle using the chip |
| CN109289953B (en) * | 2018-11-14 | 2020-11-27 | 哈尔滨工业大学 | Micro-scale particle separation chip and method for separating micro-scale particles by using same |
| CN109813771A (en) * | 2019-03-14 | 2019-05-28 | 大连海事大学 | A kind of magnetocapacitance ferromagnetism wear particle detection sensor and production method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161026 Effective date of abandoning: 20190205 |