CN107796950A - A kind of fast sampling analysis system and sampling and analyzing method - Google Patents
A kind of fast sampling analysis system and sampling and analyzing method Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
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Abstract
A kind of fast sampling analysis system, the system include sampler, negative pressure device, conveyance conduit, separator, sample conveying device and detection means, wherein：The sampler, conveyance conduit, separator and negative pressure device are linked in sequence, the sample conveying device is located at the lower section of separator and detection means, sample conveying device can move between separator and detection means, while the present invention also provides one kind and utilizes the systematic sampling analysis method.The present invention organically combines sampling, sample presentation and detection, micro cutting is locally carried out to sample can just to analyze sample, the shape characteristic of sample itself can be ignored, also can have automaticity height, fast response time, free of contamination advantage without carrying out any pretreatment to testing sample.
Description
Technical field
The present invention relates to Analysis of Metallic Materials technical field, more particularly to a kind of fast sampling analysis system and sampling analysis
Method.
Background technology
With the aggravation of process of industrialization, many fields such as material storage detection, product export detection, waste metal recovery
It is required that analysis system fast and accurately can be analyzed and identified to detection material.
Some uses desktop designs in existing quick analysis system, it is possible to achieve the quick analysis to sample, but
It is that the preparation of sample and sample presentation process are required to be accomplished manually.Due to preparation of the analytical instrument to sample and it is placed with certain want
Ask, so sample preparation and sample presentation process turn into the principal element for influenceing whole analysis time, such result causes to analyze link sheet
The time of body is very short, but the non-cutting time of sample preparation sample presentation is very long, has had a strong impact on the efficiency of quick analysis system.
It is hand-held rapid assay device to also have one kind in quick analysis system, and detecting element is integrated on a handheld device.This
The advantages of sample designs is that sample preparation need not be sampled in advance, directly sample can be detected using hand-held quick analytic instrument device.
The shortcomings that this kind of quick analysis system, is detection device because the limitation of volume can not use powerful detecting element, detection
Ability and precision receive limitation；The sample for having coated layer for surface needs to handle its surface；Set due to hand-held
Standby less stable, affects to the accuracy of detection.
The content of the invention
In view of the analysis of the above, in order to solve the problems, such as that above-mentioned quick analysis system is present, the present invention is intended to provide a kind of
Fast sampling analysis system, solve the problems, such as that the manual sampling sample preparation cycle grows the slow-footed and small low precision of handheld device power.
The purpose of the present invention is mainly achieved through the following technical solutions：
A kind of fast sampling analysis system, the system include sampler, negative pressure device, conveyance conduit, separator, sample presentation
Device and detection means, wherein：The sampler, conveyance conduit, separator and negative pressure device are linked in sequence, the sample conveying device
Positioned at separator and the lower section of detection means.
Further, the sample conveying device includes elephant trunk, sample bin and connecting pipe, the elephant trunk respectively with separator and
Connecting pipe connects, and the sample bin can move in connecting pipe.
Sample conveying device uses Automated Design completely, without manual intervention, has the advantages of automaticity is high.
Further, the system is provided with slug collection device, and the slug collection device is located at connecting pipe tail end
Lower section.
The slug collection device of system tail end can be collected to the sample for completing to discharge after detecting, and then sample is entered
The unified recycling of row, prevents from polluting surrounding enviroment.
Further, the system also includes bleeding device, and the bleeding device is connected with negative pressure device；It is described to diffuse dress
Swarf collector is provided with putting.
The gas isolated in separator enters bleeding device by negative pressure device and carries out filtration, purification, has in bleeding device
Filter, the molecule contained in gas can be filtered, the swarf collector in bleeding device will can filter
Remaining molecule carries out unified recovery, prevents from polluting surrounding enviroment.
Further, it is provided with purge nozzle in the tail end of the sample conveying device and bleeding device；The separator bottom is set
There is back-blowing device.
The purge nozzle of the tail end of sample conveying device can carry out cleaning treatment to sample bin automatically, avoid Remaining debris or hand
Dynamic clean pollutes to next sample.Remaining debris can be blown in swarf collector by the nozzle in bleeding device, be easy to
Subsequently it is uniformly processed.
The back-blowing device of separator bottom, for being purged to separator, it is ensured that the sample chip of residual can be cleared up
Totally, avoid interfering to detecting next time.For the sample that there are coating or coating in surface, when being not required to that superficial layer is entered
During row detection, in the separator the ineffective sample chip of superficial layer can directly remove, without carrying out table
The removal processing of surface layer.
Further, the sampler is removable sampler；The end of sampler is provided with cutting edge.
Sampler in system uses revocable removable design, and hand-held or mechanical arm clamping sampler is sampled,
It is easy to motion and all directions sample collection.Sampler provided with cutting edge only needs locally to carry out sample micro cutting with regard to energy
It is enough that sample is analyzed, the shape characteristic of sample itself can be ignored, can also be without carrying out any pre- place to testing sample
Reason.
Further, the sampler is hollow structure；
Or fume trap cover is provided with around the cutting edge, the material of the fume trap cover is flexible material.
The sampler of hollow structure can coordinate suction function that the sample after collection is sucked into conveyance conduit, and pass through conveying
Pipeline is reached in separator.In addition to using hollow structure, fume trap cover can also be set around cutting edge to the sample after cutting
Product are collected, and the material of fume trap cover is flexible material, can coordinate the shape of sample to be collected, with sample surfaces by certain
Compactness, while fume trap cover keeps a fixed gap with sample surfaces, it is such to be designed to avoid sky from taking out, improve the trapping of sample
Efficiency.
Further, the conveyance conduit is flexible duct.
Conveyance conduit is flexible duct, and flexible duct is designed to coordinate moveable sampler, is easy to sampler
Mobile and collecting work, the two cooperations can be sampled to complex sample, can also to sample specific region progress single or
Multiple sampling operation, single single-point, single multiple spot or multiple multidraw are realized according to sample situation, sample point can be set in advance
Particular/special requirement can not also be had to the shape characteristic of sample, is passed through for surface by carrying out field program according to sample situation by putting
Crossing the material of processing also can fast and accurately be analyzed.
The present invention also provides one kind and utilizes the systematic sampling analysis method, the described method comprises the following steps：
1) cutting edge in sampler treats sample surface by way of rotating or vibrating and carries out cutting sampling, obtains
The sample that need to be detected, the sample are entered in separator under suction function by conveyance conduit；
2) sample carries out gas solid separation in separator, and solid sample is sink to below separator, and gas is from separator
Top enters bleeding device by negative pressure device, and the gas is drained into air after bleeding device filtration, purification, and filtering is residual
The sample bits stayed enter in the swarf collector inside bleeding device；
3) after the solid sample below separator being delivered into the sample bin of sample conveying device by elephant trunk using mechanical system, point
Back-blowing device from device bottom carries out blowback cleaning to separator；The sample bin is delivered to below detection means by connecting pipe
Detected；
4) after the completion of detecting, the sample bin delivers to system tail end by connecting pipe, after collection device is to detection
Sample carry out discharge recovery, complete discharge sample bin by purging cleaning after, separator is back to by connecting pipe
Lower section waits sample presentation next time；
5) after detection is fully completed, sample bits intra-system handoff considered to be worth doing in collector carry out unified recycling.
Sampling, sample presentation, analysis are combined together by this method, not only can reach the convenient of portable detection system but also can be real
Now table tester is accurate, has the advantages of automaticity high response speed is fast.
Further, gas solid separation is carried out using gravitational dust collection mode in the step 2).
This method is needed to detect solid sample, according to filter screen mode, it is also necessary to sample is carried out on filter screen
Secondary acquisition, not only waste time and energy, secondary pollution is also easily caused to sample, in addition with the use of filter screen, collecting efficiency can be by
Gradually decline.Compared with being equipped with the mode of filter screen, gravitational dust collection mode is natural separation, and sample is directly settled down to the bottom of separator
Portion, it can directly gather sample and be detected, it is not necessary to carry out secondary acquisition, avoid polluting, it is not required that the consumptive material such as filter screen, it is economical
Save.
The present invention has the beneficial effect that：
The present invention fast sampling analysis system will sample, sample presentation and detection organically combine, according to sampling-conveying-
The order composition whole system of separation-detection, substitution need sampling, the sample making course being accomplished manually, moveable sampling originally
The convenient of portable detection system can be achieved in the cooperation of device and soft conveyance conduit；Full automatic sample presentation process, without manual intervention
It can complete, improve detection speed；Whole quick analysis process is realized in combination with the quick analysis ability of analytical instrument；Analysis
Sample chip afterwards can carry out unified collection processing, not produce pollution to environment.Sample is locally carried out according to the present invention micro-
The cutting of amount can be just analyzed sample, can ignore the shape characteristic of sample itself, can also be without to testing sample
Any pretreatment is carried out, there is the advantages of high automaticity, fast response time, can be used for point of large complicated metal material
Analysis.
Other features and advantages of the present invention will illustrate in the following description, also, part can become from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and obtained in book, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is only used for showing the purpose of specific embodiment, and is not considered as limitation of the present invention, in whole accompanying drawing
In, identical reference symbol represents identical part.
Fig. 1 is the structural representation of fast sampling analysis system.
Fig. 2 is the structural representation of sample conveying device.
Wherein：1- motion arms, 2- samplers, 3- conveyance conduits, 4- separators, 5- negative pressure devices, 6- bleeding devices, 7- are sent
Sampling device, 7-1- elephant trunks, 7-2- sample bins, 7-3- connecting pipes, 8- detection means, 9- slug collection devices.
Embodiment
The preferred embodiments of the present invention are specifically described below in conjunction with the accompanying drawings, wherein, accompanying drawing forms the application part, and
It is used for the principle for explaining the present invention together with embodiments of the present invention.
The present invention provides a kind of fast sampling analysis system, includes sampler 2, conveyance conduit 3, separator 4, sample conveying device
7 and detection means 8, form whole system according to the order of sampling-conveying-separation-detection.
Sampler 2 is accompanied with cutting edge, and sample surfaces are cut by the action such as rotation；The chip cut exists
Separator 4 is entered by conveyance conduit 3 under negative pressure and carries out gas solid separation, the chip after separation enters sample room by quickly analyzing
Composition.It the advantage is that micro cutting can is locally carried out to sample to be analyzed sample component, ignores sample itself
Shape characteristic without carrying out any processing.The system can be used for the constituent analysis of band large-scale metal material, automaticity
High response speed is fast.
Autosampler includes cutting edge and fume trap cover, and sampler 2 carries cutting edge, by way of rotating or vibrating
Sample surfaces are cut；Chip under cutting is collected by fume trap cover, and fume trap cover is flexible material, with sample surfaces
There is certain compactness, but be not to be attached to sample surfaces completely, but have a fixed gap with sample surfaces, can so improve and catch
Collect efficiency；Fume trap cover is connected with conveyance conduit.In addition to being trapped using fume trap cover, also sampler 2 can be set to hollow structure,
Also the trapping of sample can be carried out.Autosampler, which can be positioned in Multi-freedom-degreemanipulator manipulator, realizes full-automatic sampling, can also
Manual sampling is carried out using hand-held.
Whole system uses negative pressure transportation, pipe leakage can be avoided to cause environment to influence.Chip after collection is in negative pressure
Effect is lower to enter separator 4 by conveyance conduit 3；The one end of separator 4 is connected by negative pressure device 5 with bleeding device 6, another
End is connected with sample conveying device 7；Sample is entered in sample conveying device 7 after being separated with conveying gas in separator 4, the gas of separation
Into bleeding device.The bottom of separator 4 carries blowback nozzle, for being purged to separator 4, it is ensured that sample chip can be clear
Reason is clean, avoids interfering detection, while ineffective sample chip directly can also be removed, such as has plating to surface
For layer or the testing sample of figure layer, if need not be detected to surface, conventional sample collection method needs artificial right
Testing sample surface is pre-processed, and detection work, labor intensive material resources are being sampled after removing skim-coat, and the system can incite somebody to action
After the surface sample of acquisition is purged, the acquisition testing flow of lower floor's sample is directly carried out, without human intervention, is had automatic
Change the advantages of high.All gas is discharged after purification by bleeding device 6.
Sample conveying device 7 includes elephant trunk 7-1, sample bin 7-2 and connecting pipe 7-3, and elephant trunk 7-1 is respectively with separator and being connected
Pipeline 7-3 connections, sample bin 7-2 can be moved in connecting pipe 7-3.Sample bin 7-2 is used for holding consolidating of separating in separator 4
Aspect product, sample move with sample bin 7-2.Connecting pipe 7-3 includes waiting position, detecting position and clean bits, and sample bin 7-2 can be with
Move between three positions, wait position in the lower section of separator 4, detecting position is in the lower section of detection means 8, and clean bits are in scrap
The top of collection device 9, connecting pipe 7-3 clean bits bottom is open.Upon completion of the assays, the energy of slug collection device 9
Enough that sample chip after detection is discharged, the nozzle that the tail end of sample conveying device is provided with purging can enter to sample bin 7-2
Row cleaning treatment, Remaining debris is avoided to pollute next sample.The sample and Remaining debris of discharge enter slug collection
In device 9, uniformly handled, avoid polluting environment.
The quick analytic instruments such as detection means 8 uses but is not limited to Xray fluorescence spectrometer, laser induced breakdown spectrograph
Device.
Sampler is easy to motion and all directions sample collection using hand-held or clamped design in whole system；Conveyance conduit 3
Connection sampler 2 and separator 4, pipeline are easy to sampler 2 to work using flexible design；Other parts are designed using fixed, no
Reliable and stable working environment is provided for whole analysis system simultaneously by volumetric constraint.
Concrete operations are as follows：
(1) sample sends the rear drive of motion arm 1 sampler 2 and sample is sampled；Sampler 2 per se with cutting edge and
Fume trap cover, fume trap cover are connected with conveyance conduit 3；The sample cut down is drawn into conveyance conduit 3 and with pipe by fume trap cover
Road enters separator 4；Wherein motion arm 1 can be Multi-freedom-degreemanipulator manipulator or man-hour manually hand-held；
(2) sample carries out gas solid separation after entering separator 4, and the top of separator 4 is gas discharge outlet, and gas is from floss hole
Bleeding device 6 is entered by negative pressure device 5, the lower section of sample splitter 4 docking sample conveying device 7, the bottom of separator 4 is additionally provided with blowback
Device, invalid sample chip can be cleaned；
(3) gas is pumped by negative pressure device 5, is discharged via bleeding device 6；Bleeding device 6 fills with filtering
Put, the molecule contained in gas can be carried out into filtering prevents from polluting surrounding enviroment；
(4) sample delivers to the lower section of detection means 8 by sample conveying device 7 and carries out analysis of components；Sample conveying device include elephant trunk 7-1,
Sample bin 7-2 and connecting pipe 7-3, measuring samples are entered in sample bin 7-2 by elephant trunk 7-1, and sample bin 7-2 is moved to inspection
Location, detection means 8 are analyzed composition.Sample after detection composition is moved to clean bits, connecting pipe with sample bin 7-2
7-3 clean bits bottom is open, and the purge nozzle above clean bits ejects gases at high pressure and sample bin 7-2 is blown
Sweep；Discarded chip is fallen into slug collection device 9 with gas, and sample bin 7-2, which is back to, waits position, and sample enters next time for wait
Enter, whole process sample bin 7-2 is moved in connecting pipe 7-3 all the time.
(5) connecting pipe 7-3 clean bits docking slug collection device 9, sample is emitted into slug collection after analysis
The processing of the centralized recovery of device 9.
Existing rapid assay device accelerates analysis process in itself merely by analysis method is changed, and the preparation of sample
It is required to be accomplished manually with sample presentation process.In this case sampling sample preparation and sample presentation process turns into the limit for influenceing whole analysis time
Link processed.Compared with existing analytical equipment, quick analysis system of the present invention is the extension to existing quick analytic instrument, is
The integrated automatic sampling of system and sample conveying device substitution need the sampling, sample preparation and sample presentation process being accomplished manually originally, greatly shorten
Whole analysis process, improves efficiency.
Current hand-held quick analytic instrument uses portable design, and flexibly article can be analyzed, but is limited by volume
System detection power can not possibly be too big, and stable support is lacked additionally, due to handheld device, detection efficiency is affected,
There is the sample of coated layer for appearance, handheld device is possibly can not be to its accurate detection.Compared with hand-held quick analytic instrument, this
Large-scale desk-top rapid assay device can be docked by inventing the quick analysis system being related to, and analyze speed and the degree of accuracy all obtain greatly
Lifting.It is especially suitable in the case of there is coated layer on surface because system uses the method for sampling to be detected.
Fast sampling analysis system of the present invention can design it is very compact, coordinate machinery of sampling hand can be with convection current
The sample of waterline carries out comprehensive automatic sampling.Analytical equipment is connected with sampler by flexible pipe, can be according to actual conditions spirit
Arrangement living is not limited by a space.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.
Claims (10)
1. a kind of fast sampling analysis system, it is characterised in that the system includes sampler (2), negative pressure device (5), conveying
Pipeline (3), separator (4), sample conveying device (7) and detection means (8), wherein：The sampler (2), conveyance conduit (3), divide
It is linked in sequence from device (4) and negative pressure device (5), the sample conveying device (7) is located at the lower section of separator (4) and detection means (8).
2. fast sampling analysis system according to claim 1, it is characterised in that the sample conveying device (7) includes elephant trunk (7-
1), sample bin (7-2) and connecting pipe (7-3), the elephant trunk (7-1) are connected with separator and connecting pipe (7-3) respectively, institute
Stating sample bin (7-2) can move in connecting pipe (7-3).
3. fast sampling analysis system according to claim 2, it is characterised in that the system is provided with slug collection device
(9), the slug collection device (9) is located at the lower section of connecting pipe (7-3) tail end.
4. according to fast sampling analysis system any one of claim 1-3, it is characterised in that the system also includes putting
In bulk to put (6), the bleeding device (6) is connected with negative pressure device (5)；Swarf collector is provided with the bleeding device (6).
5. fast sampling analysis system according to claim 4, it is characterised in that the tail end of the sample conveying device (7) and put
In bulk put in (6) is provided with purge nozzle；Separator (4) bottom is provided with back-blowing device.
6. fast sampling analysis system according to claim 5, it is characterised in that the sampler (2) is removable sampling
Device；The end of sampler (2) is provided with cutting edge.
7. fast sampling analysis system according to claim 6, it is characterised in that the sampler (2) is hollow structure；
Or fume trap cover is provided with around the cutting edge, the material of the fume trap cover is flexible material.
8. according to fast sampling analysis system any one of claim 1-7, it is characterised in that the conveyance conduit (3)
For flexible duct.
9. one kind utilizes systematic sampling analysis method any one of claim 1-8, it is characterised in that methods described bag
Include following steps：
1) cutting edge in sampler (2) treats sample surface by way of rotating or vibrating and carries out cutting sampling, obtains
The sample that need to be detected, the sample are entered in separator (4) under suction function by conveyance conduit (3)；
2) sample carries out gas solid separation in the separator (4), and solid sample is sink to below separator (4), and gas is from separation
Bleeding device (6) is entered by negative pressure device (5) above device (4), the gas is after bleeding device (6) filtration, purification, row
Into air, the sample bits of filtration residue enter in the internal swarf collector of bleeding device (6)；
3) solid sample below separator (4) is delivered to the sample of sample conveying device (7) using mechanical system by elephant trunk (7-1)
Behind storehouse (7-2), the back-blowing device of separator (4) bottom carries out blowback cleaning to separator (4)；The sample bin (7-2) passes through
Connecting pipe (7-3) is delivered to below detection means (8) and detected；
4) after the completion of detecting, the sample bin (7-2) delivers to system tail end, slug collection device (9) by connecting pipe (7-3)
Discharge recovery is carried out to the sample after detection, the sample bin (7-2) of discharge is completed after purging cleans, passes through connecting tube
Road (7-3), which is back to below separator (4), waits sample presentation next time；
5) after detection is fully completed, sample bits intra-system handoff considered to be worth doing in collector carry out unified recycling.
10. sampling and analyzing method according to claim 9, it is characterised in that using the side such as gravitational dust collection in the step 2)
Formula carries out gas solid separation.
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| CN201710843773.XA CN107796950B (en) | 2017-09-19 | 2017-09-19 | A kind of fast sampling analysis system and sampling and analyzing method |
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| CN111122213A (en) * | 2018-10-30 | 2020-05-08 | 哈尔滨工业大学 | Disc cutter cutting sampling and air blowing sample type asteroid surface star soil sampler |
| CN111122217A (en) * | 2018-10-30 | 2020-05-08 | 哈尔滨工业大学 | Mechanical terrain-adaptive asteroid surface star soil sampling device |
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| CN111122218A (en) * | 2018-10-30 | 2020-05-08 | 哈尔滨工业大学 | Index disc cutter cutting sampling and pull rope feeding type asteroid surface star soil sampler |
| CN113804511A (en) * | 2020-05-29 | 2021-12-17 | 同方威视技术股份有限公司 | Handheld gas sampling device and gas detection system |
| CN114778869A (en) * | 2022-06-13 | 2022-07-22 | 深圳市帝迈生物技术有限公司 | Sample detection device |
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| CN107796950B (en) | 2019-09-27 |
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