CN104698488B - The apparatus and system of liquid and foam in a kind of probe gas transfer conduit - Google Patents
The apparatus and system of liquid and foam in a kind of probe gas transfer conduit Download PDFInfo
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- CN104698488B CN104698488B CN201310667551.9A CN201310667551A CN104698488B CN 104698488 B CN104698488 B CN 104698488B CN 201310667551 A CN201310667551 A CN 201310667551A CN 104698488 B CN104698488 B CN 104698488B
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Abstract
The present invention relates to the apparatus and system of liquid and foam in a kind of probe gas transfer conduit, the device includes first gas transfer conduit, sensor, flow channel switching valve, second gas transfer conduit, liquid transfer tube road and control unit, the first gas transport pipeline gas outlet is connected with the flow channel switching valve air inlet, the gas outlet of the flow channel switching valve is connected with the air inlet of the second gas transfer conduit, and the liquid outlet of the flow channel switching valve is connected with the liquid transfer tube road inlet；The sensor is arranged in the first gas transfer conduit, the sensor and the flow channel switching valve are electrically connected between the control unit respectively, the detection device is used for gas-detecting device, the gas generator gas outlet of the gas-detecting device is connected with the first gas transfer conduit air inlet, the second gas transfer conduit gas outlet is connected with the detector of the gas-detecting device, and the liquid transfer tube road liquid outlet is connected with waste liquid cup.
Description
Technical field
The present invention relates to the gas delivery system field of atom spectrum alanysis instrument, more particularly to a kind of probe gas
The apparatus and system of liquid and foam in transfer conduit.
Background technology
Trace and ultra trace total metalses and morphological analysis instrument of the AFS as elements such as arsenic, mercury,
It has been widely used in the fields such as food security, environmental monitoring, running water, geological prospecting, metallurgy and scientific research.Atomic fluorescence light
During spectrometer analysis, potassium borohydride reacts after being mixed with the acid in sample, generates gaseous material, the hydrogen of element to be measured
With other materials；The gaseous material and hydrogen of the element to be measured of generation pass through gas-liquid under the carrying of carrier gas in gas-liquid separator
Separate after removing vapor, into atomizer.Hydrogen is ignited above atomizer, forms hydrogen flame.Element to be measured
Gaseous material ground state atom is generated in hydrogen flame, ground state atom generates atomic fluorescence under the radiation of light source, for photoelectricity examine
Examining system is received, so as to reach the purpose of quantitative detection.
During atomic fluorescence analysis, gas-liquid separation and atomization are two extremely critical links, gas-liquid separator
Connected between atomizer by silicone rubber tube.In some cases, the company of being also possible between gas-liquid separator and atomizer
It is connected to buffer.By the development of nearly 40 years, atomic fluorescence analysis technique made significant progress, gas-liquid separation technology and atom
Change technology also obtain larger progress.However, it is desirable to, it is noted that following problems are never resolved：
(1) atomic fluorescence connects meeting in the silicone rubber tube between gas-liquid separator and atomizer after long-play
There are a large amount of Water vapor condensations into water droplet, hinder the transmission of gas, completely plugged pipeline is even understood when serious, has influence on analysis result
Reliability.
(2) for the higher sample solution of the content of organic matter, a large amount of foams can be formed in gas-liquid separator, without
The gas-liquid separator of defoaming function design then can not limit foam carry substantial amounts of liquid atomizer entered by connecting line,
Eventually result in atomizer and be in the presence of that short circuit and pollution etc. are seriously damaged.
(3) for needing the gas-liquid separator of peristaltic pump pumps waste liquid, the aging of peristaltic pump pump line is inevitable
The problem of.When pump line aging, waste liquid because can not extract out and entrance and also relatively conventional the problem of damage atomizer in time.
(4) it is combined in atomic fluorescence and liquid chromatogram, when realizing Elemental Speciation Analysis, reverse ion is separation to chromatography
One of the most frequently used method of element morphology.The ion-pairing agent that reverse ion is mainly used chromatography, such as alkyl sulfate
With quaternary ammonium salt etc., during steam reacts, a large amount of foams can be formed, connection gas-liquid separator and original can be blocked when serious
Gas transport pipeline between sonization device, the accuracy of impact analysis result.
The content of the invention
The technical problem to be solved in the present invention is to provide liquid in a kind of probe gas transfer conduit and foam to improve instrument
The apparatus and system of device analysis result accuracy and instrument service life.
For the above-mentioned purpose, the device of liquid and foam in a kind of probe gas transfer conduit of the present invention, it is characterised in that：
First gas transfer conduit, sensor, flow channel switching valve, second gas transfer conduit, liquid transfer tube road and control unit, institute
State first gas transfer conduit gas outlet with the flow channel switching valve air inlet to be connected, the gas outlet of the flow channel switching valve and institute
The air inlet for stating second gas transfer conduit is connected, the liquid outlet of the flow channel switching valve and liquid transfer tube road inlet
It is connected；The sensor is arranged in the first gas transfer conduit, the sensor and the flow channel switching valve respectively with
It is electrically connected between described control unit.
Wherein also include the buzzer or/and LED being connected with described control unit.
Wherein described sensor is ultrasonic detector.
Wherein described first gas transfer conduit, second gas transfer conduit and the material on liquid transfer tube road be silica gel,
Any one in polytetrafluoroethylene (PTFE), polyvinylidene fluoride, polyether-ether-ketone, quartz or glass.
Wherein described first gas transfer conduit, the second gas transfer conduit and liquid transfer tube road internal diameter are
1~10mm, a length of 10~500mm.
Wherein described flow channel switching valve is any one in two-bit triplet type medium isolating valve, pinch valve or selector valve.
Wherein also include the communication interface being connected with described control unit.
It is a kind of also to include including the system of liquid and foamite system in the probe gas transfer conduit, the detection system
Gas-detecting device and waste liquid cup, the gas generator gas outlet of the gas-detecting device and the first gas transfer conduit
Air inlet is connected, and the second gas transfer conduit gas outlet is connected with the detector of the gas-detecting device, described
Liquid transfer tube road liquid outlet is connected with the waste liquid cup.
It is a kind of also to include including the system of liquid and foamite system in the probe gas transfer conduit, the detection system
Gas-detecting device and waste liquid cup, the gas generator gas outlet of the gas-detecting device and the first gas transfer conduit
Air inlet is connected, and the second gas transfer conduit gas outlet is connected with the detector of the gas-detecting device, described
Liquid transfer tube road liquid outlet is connected with the waste liquid cup, and the analytical instrument of the communication interface and the gas-detecting device is whole
Side controller is connected.
Wherein described gas-detecting device is AFS, and the gas-liquid separator of the AFS goes out
Gas port is connected with the first gas transfer conduit air inlet, the second gas transfer conduit gas outlet and the atomic fluorescence
The ionizer of spectrometer is connected, and liquid transfer tube road liquid outlet is connected with the waste liquid cup, the communication interface and institute
The terminal control unit for stating AFS is connected.
The invention difference from existing technology is that the present invention achieves following technique effect：
1st, the present apparatus can liquid and foam that may be present effectively in Measurement atom XRF gas transport pipeline,
So as to avoid the blocking of pipeline and thus caused analytical error and mistake, prevented foam or liquid enter rear class equipment from
And the pollution or damage brought, thus for extending device longevity, ensureing that the reliable etc. of analysis result has important meaning.
2nd, the present apparatus can be also used for atomic absorption spectrophotometer, inductive coupling plasma emission spectrograph, carbon sulphur
The analytical instrument such as analyzer, the potential risk that liquid enters detector is effectively eliminated, improve instrument reliability of operation.
The invention will be further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the structural representation of the device of liquid and foam in probe gas transfer conduit of the present invention；
Fig. 2 is the structural representation that the present invention is used for AFS.
Description of reference numerals：1- air inlets；2- first gas transfer conduits；3- sensors；4- shells；5- streams switch
Valve；6- second gas transfer conduits；7- liquid transfer tubes road；The normal gas outlets of 8-；The urgent liquid outlets of 9-；10- control units；
11- buzzers；12-LED；13- communication interfaces；14- detection devices；15- liquid feeding pumps；16- four-ways；17- gas-liquid separators；18-
Waste liquid cup；19- atomizers；20- general control systems.
Embodiment
Below in conjunction with drawings and examples, the technical characteristic above-mentioned and other to the present invention and advantage are made in more detail
It is bright.
The detection device 14 of liquid and foam in gas transport pipeline of the present invention, including air inlet 1, first gas transfer tube
Road 2, sensor 3, shell 4, flow channel switching valve 5, second gas transfer conduit 6, it is liquid transfer tube road 7, normal gas outlet 8, tight
Anxious liquid outlet 9, control unit 10, buzzer 11, LED12（Light emitting diode）With communication interface 13, air inlet 1 include A1 ends and
A2 ends, flow channel switching valve 5 include B1 ends, B2 ends and B3 ends, and normal gas outlet 8 includes C1 ends and C2 ends, and urgent liquid outlet 9 includes
D1 ends and D2 ends；The A1 ends of air inlet 1 are connected with the gas outlet of gas-liquid separator 17, and A2 ends pass through first gas transfer conduit 2
It is connected with the B1 ends of flow channel switching valve 5；Sensor 3 is arranged in first gas transfer conduit 2；Second gas transfer conduit 6
Both ends connect the B2 ends of flow channel switching valve 5 and the C1 ends of normal gas outlet 8 respectively；The both ends on liquid transfer tube road 7 connect respectively
The B3 ends of flow channel switching valve 5 and the D1 ends of urgent liquid outlet 9；The C2 ends of normal gas outlet 8 are connected with atomizer 19；Promptly go out
The D2 ends of liquid mouth 9 are connected with waste liquid cup 18；Sensor 3, flow channel switching valve 5, buzzer 11, LED12, communication interface 13 and control
Pass through electrical connection between unit 10；All devices are encapsulated in shell 4.
Detection device 14 is used in AFS in use, its course of work is as follows as Fig. 2 works as：
Gas transport pipeline between the gas-liquid separator 17 and atomizer 19 of AFS is replaced with into spy
Device 14 is surveyed, the gas outlet of gas-liquid separator 17 is connected with the A1 ends of detection device 14, the C2 ends of detection device 14 and atomization
Device 19 is connected, and the D2 ends of detection device 14 are connected with waste liquid cup 18, the communication interface 13 and atomic fluorescence spectrophotometry of detection device 14
The analytical instrument terminal control unit of the general control system 20 of instrument passes through electrical connection.
After being powered to general control system 20, control unit 10 is in real-time monitor state；Now flow channel switching valve 5 is in disconnected
Electricity condition, B1 ends connect with B2 ends, and B1 ends and B3 ends disconnect, and two passages of the liquid feeding pump 15 of AFS are taken out respectively
Take sample solution and KBH4Solution produces steam generation reaction after being mixed to four-way 16, generate the gaseous material and liquid of element to be measured
Body enters gas-liquid separator 17 under the carrying of argon gas, the gaseous material of element to be measured after the gas-liquid separation of gas-liquid separator 17
Successively the A1 ends of the air inlet 1 Jing Guo detection device 14 and A2 ends, first gas transfer conduit 2, flow channel switching valve 5 B1 ends and
B2 ends, the tunnel of second gas transfer tube 6, the C1 ends and C2 ends of normal gas outlet 8, into the progress atomization of atomizer 19 and finally
Detection.
If liquid or foam are carried in the gas after the separation of gas-liquid separator 17, when liquid or foam enter the first gas
After in body transfer conduit 2, sensor 3（Such as ultrasonic detector, working frequency is 0.5~500MHz, operating voltage is 1.5~
12V, minimum detection precision are 1~100 μ L foam or liquid）Detecting has liquid or foam in first gas transfer conduit 2,
Signal is fed back to control unit 10 by sensor 3, and control unit 10 is powered to flow channel switching valve 5, now the B1 of flow channel switching valve 5
End and B2 ends disconnect, and B1 ends connect with B3 ends, now gas carrying of liquids or foam the B1 ends through flow channel switching valve 5, B3 successively
End, liquid transfer tube road 7, the D1 ends and D2 ends of urgent liquid outlet 9, into waste liquid cup 18；Control unit 10 controls buzzing simultaneously
Device 11 sends the sound of pulsed, LED12 send flicker optical signal, to AFS general control system 20 point
Analyzer device terminal control unit sends " this analysis result is invalid " notice, and the software interface of AFS is analyzed this
As a result engineering noise mark, analysis process pause are given.Now, analysis personnel should observe gas transport pipeline, fix a breakdown manually.
After analysis personnel fix a breakdown, reset operation is carried out to control device 14 by general control system 20, to " this point
Analyse result it is invalid " sample carry out duplicate measurements, complete " this analysis result is invalid " sample duplicate measurements after, continue it is next
The analysis process of individual sample.
The material of the first gas transfer conduit 2 is silica gel, polytetrafluoroethylene (PTFE), polyvinylidene fluoride, polyether-ether-ketone, stone
Any of English, glass.
The first gas transfer conduit, the second gas transfer conduit and liquid transfer tube road internal diameter be 1~
10mm, a length of 10~500mm, depend on the circumstances internal diameter and length.
The flow channel switching valve is any of two-bit triplet type medium isolating valve, pinch valve, selector valve.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, it all should fall into the protection domain of claims of the present invention determination.
Claims (8)
- A kind of 1. device of liquid and foam in probe gas transfer conduit, it is characterised in that：Including first gas transfer conduit, Sensor, flow channel switching valve, second gas transfer conduit, liquid transfer tube road and control unit, the first gas transfer tube Road gas outlet is connected with the flow channel switching valve air inlet, the gas outlet of the flow channel switching valve and the second gas transfer tube The air inlet on road is connected, and the liquid outlet of the flow channel switching valve is connected with liquid transfer tube road inlet；The sensor It is described for detecting liquid and foam in the first gas transfer conduit in the first gas transfer conduit Sensor and the flow channel switching valve are electrically connected between described control unit respectively；Wherein, in addition to described control unit the buzzer or/and LED being connected；Wherein, the sensor is ultrasonic detector.
- 2. the device of liquid and foam in probe gas transfer conduit according to claim 1, it is characterised in that：Described One gas transport pipeline, second gas transfer conduit and the material on liquid transfer tube road are silica gel, polytetrafluoroethylene (PTFE), gather inclined difluoro Any one in ethene, polyether-ether-ketone, quartz or glass.
- 3. the device of liquid and foam in probe gas transfer conduit according to claim 1, it is characterised in that：Described One gas transport pipeline, the second gas transfer conduit and liquid transfer tube road internal diameter are 1~10mm, a length of 10~ 500mm。
- 4. the device of liquid and foam in probe gas transfer conduit according to claim 1, it is characterised in that：The stream Road switching valve is any one in two-bit triplet type medium isolating valve, pinch valve or selector valve.
- 5. the device of liquid and foam in probe gas transfer conduit according to claim 1, it is characterised in that：Also include The communication interface being connected with described control unit.
- 6. a kind of be including the device of liquid and foam in the probe gas transfer conduit as any one of claim 1-4 System, it is characterised in that：The system also includes gas-detecting device and waste liquid cup, the gas generator of the gas-detecting device Gas outlet is connected with the first gas transfer conduit air inlet, and the second gas transfer conduit gas outlet is examined with the gas The detector for surveying device is connected, and liquid transfer tube road liquid outlet is connected with the waste liquid cup.
- 7. a kind of system for including the device of liquid and foam in probe gas transfer conduit as claimed in claim 5, its feature It is：The system also includes gas-detecting device and waste liquid cup, the gas generator gas outlet of the gas-detecting device with The first gas transfer conduit air inlet is connected, the second gas transfer conduit gas outlet and the gas-detecting device Detector is connected, and liquid transfer tube road liquid outlet is connected with the waste liquid cup, the communication interface and the gas The analytical instrument terminal control unit of detection means is connected.
- 8. the system of the device of liquid and foam in probe gas transfer conduit according to claim 7, it is characterised in that： The gas-detecting device is AFS, the gas-liquid separator gas outlet of the AFS and described the One gas transport pipeline air inlet is connected, the second gas transfer conduit gas outlet and the ion of the AFS Change device to be connected, liquid transfer tube road liquid outlet is connected with the waste liquid cup, the communication interface and the atomic fluorescence light The terminal control unit of spectrometer is connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310667551.9A CN104698488B (en) | 2013-12-10 | 2013-12-10 | The apparatus and system of liquid and foam in a kind of probe gas transfer conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310667551.9A CN104698488B (en) | 2013-12-10 | 2013-12-10 | The apparatus and system of liquid and foam in a kind of probe gas transfer conduit |
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| Publication Number | Publication Date |
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| CN104698488A CN104698488A (en) | 2015-06-10 |
| CN104698488B true CN104698488B (en) | 2018-01-09 |
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| CN108318380B (en) * | 2018-01-02 | 2021-01-26 | 京东方科技集团股份有限公司 | Fluid detection device |
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| CN203148750U (en) * | 2013-01-25 | 2013-08-21 | 北京瑞利分析仪器有限公司 | Micro gas-liquid separation system for portable atomic fluorescence spectrometer |
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2013
- 2013-12-10 CN CN201310667551.9A patent/CN104698488B/en active Active
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| CN1625671A (en) * | 2002-01-28 | 2005-06-08 | 关口株式会社 | Industrial combustion equipment for disposing waste water, and waste water disposal method using the equipment |
| JP5255439B2 (en) * | 2007-01-10 | 2013-08-07 | アークレイ株式会社 | Method for confirming performance of optical detector and standard reagent used therefor |
| CN202033291U (en) * | 2011-03-01 | 2011-11-09 | 北京瑞利分析仪器有限公司 | Liquid driving sampling device capable of realizing steam reaction under constant voltage and constant current |
| CN203148750U (en) * | 2013-01-25 | 2013-08-21 | 北京瑞利分析仪器有限公司 | Micro gas-liquid separation system for portable atomic fluorescence spectrometer |
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Effective date of registration: 20210903 Address after: 100094 160 Beiqing Road, Haidian District, Beijing Patentee after: BEIJING BEIFEN-RUILI ANALYTICAL INSTRUMENT (Group) Co.,Ltd. Address before: 100016, A5 building, No. 9 East Jiuxianqiao Road, Beijing, Chaoyang District Patentee before: BEIJING RAYLEIGH ANALYTICAL INSTRUMENT Co.,Ltd. |
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