CN104330508A - Intelligent automatic switching multi-channel gas chromatography column connection device - Google Patents
Intelligent automatic switching multi-channel gas chromatography column connection device Download PDFInfo
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- CN104330508A CN104330508A CN201410608200.5A CN201410608200A CN104330508A CN 104330508 A CN104330508 A CN 104330508A CN 201410608200 A CN201410608200 A CN 201410608200A CN 104330508 A CN104330508 A CN 104330508A
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Abstract
The invention provides an intelligent automatic switching multi-channel gas chromatography column connection device which comprises a fixed base, a plurality of gas chromatography columns, a control panel and two multi-channel gas chromatography column connectors, wherein the control panel is provided with a display screen; the multi-channel gas chromatography column connectors are respectively provided with a plurality of fluid channels, are capable of switching the fluid channels by rotation so as to enable fluid to flow through the different gas chromatography columns, and are arranged on the top and at the bottom of the fixed base; the control panel is connected with the two multi-channel gas chromatography column connectors through circuit and is used for controlling the multi-channel gas chromatography column connectors to switch the fluid channels; the gas chromatography columns are connected between the corresponding fluid channels of the two multi-channel gas chromatography column connectors in parallel by chromatographic column connecting pipes. When the intelligent automatic switching multi-channel gas chromatography column connection device is used for replacing the gas chromatography columns, the gas chromatography columns do not need to be manually demounted and installed again, and sample injection of the different gas chromatography columns can be controlled by automatic switching through one key; the plurality of gas chromatography columns are convenient to wash and maintain at fixed period, and the device is simple to operate, low in manufacturing cost and easy to popularize.
Description
Technical field
The invention belongs to laboratory analytical instrument field, particularly relate to a kind of intelligent automatic switchover hyperchannel gas chromatographic column coupling arrangement.
Background technology
Gas chromatograph utilizes chromatographic column to be first separated by potpourri, then utilizes detecting device to detect the component separated successively.The diameter of chromatographic column is several millimeters, is wherein filled with solid adsorbent or liquid flux, and the adsorbent of filling or solvent are called Stationary liquid.Corresponding with Stationary liquid also has a mobile phase.Mobile phase is a kind of gas do not reacted with sample and Stationary liquid, is generally nitrogen or hydrogen.Sample to be analyzed injects mobile phase on chromatographic column top, and mobile phase enters chromatographic column with sample, therefore mobile phase is also called carrier gas.Carrier gas is flow through chromatographic column with certain flow rate continuously in analytic process; Sample then just injects again and again, often injects and once obtains an analysis result.It is difference based on macroscopic property that sample is separated in the chromatography column.Stationary liquid and each component in sample have different affinity (be that absorption affinity different to gas-solid chromatography (GSC) instrument, be different solubility to gas-liquid partition chromatography instrument).When carrier gas with sample continually by chromatographic column time, the large component of affinity in the chromatography column translational speed is slow because affinity to mean that greatly Stationary liquid holds its strength large.Then moving that affinity is little is fast.Different component is separated through chromatographic column and enters detecting device successively, and detecting device provides a corresponding signal to each component entered.Registering instrument shows as peak one by one, is called chromatographic peak.Maximum value on chromatographic peak is the foundation of qualitative analysis, and the area that chromatographic peak covers then depends on the content of corresponding component, therefore peak area is the foundation of quantitative test.After a blend sample is injected, the curve obtained by registering instrument record, is called chromatogram.Analyze chromatogram and just can obtain qualitative analysis and quantitative analysis results.
Current gas chromatograph is all only equipped with the connector of single chromatographic column, and the frequent analysis in laboratory often needs the gas chromatographic column often using different model in testing, all need manual teardown to reinstall during replacing at every turn, both be unfavorable for the use of chromatographic column, also inconvenience carries out flushing maintenance to chromatographic column.
Summary of the invention
For above-mentioned technical matters, the present invention is intended to solve the problems of the technologies described above at least to a certain extent, there is provided a kind of when often using the chromatographic column of different model, without the need to all needing manual teardown to reinstall the intelligence automatic switchover hyperchannel gas chromatographic column coupling arrangement of chromatographic column at every turn.
The present invention is achieved by the following technical solution:
Intelligence automatic switchover hyperchannel gas chromatographic column coupling arrangement, comprise fixed pedestal, multiple gas chromatographic column, also comprise the control panel with display screen and two there are many fluid passages and make fluid flow through the hyperchannel chromatographic column coupling arrangement of different gas chromatographic columns by rotating switch fluids passage, described hyperchannel chromatographic column coupling arrangement is arranged at fixed pedestal top and bottom respectively, described control panel is connected with two hyperchannel chromatographic column coupling arrangement circuit respectively and switches hyperchannel chromatographic column coupling arrangement switch fluids passage for controlling, described gas chromatographic column is connected between the corresponding fluid passage of two hyperchannel chromatographic column coupling arrangements in parallel by chromatographic column connecting pipe.
Further, described hyperchannel chromatographic column coupling arrangement comprises the outer stator of the tubular be fixedly installed, be arranged at the column internal layer rotor of the endoporus of outer stator and the inner hole wall rotary seal with outer stator rotationally, top joint, follower gear, the drive motor be connected with control panel circuit, the fixing fluid passage that many connect gas chromatographic column is disposed radially in described outer stator, a L shape actuation fluid passage is provided with in described internal layer rotor, described actuation fluid passage upper end is connected with top joint, lower end is docked with corresponding fixing fluid channel seal after internal layer rotor turns predetermined angular, form complete fluid passage, described follower gear is fixedly installed on internal layer rotor upper end coaxially, described drive motor to be driven with follower gear by driving gear and is connected.
Further, described internal layer rotor is provided with on outer stator the graticule that aligns, and apparatus surface has graticule for characterizing handoff procedure actuation fluid passage and fixing fluid passage whether complete matching.
Further, described drive motor is stepper motor or servomotor, possesses function electric impulse signal being converted to angular displacement, applies a pulse signal by control panel to it, and drive motor just rotates a fixing angle according to the direction set.Pilot angle displacement can be carried out by gating pulse number, thus reach the object of accurately location.
Control panel is mainly used in drive motor input electric impulse signal, the corresponding each passage of display screen of control panel shows Digital ID, double mouse click tracking cross is only needed in correspondence numerically during use, now will send fixed number electric impulse signal to drive motor and control drive motor rotation, switch fluids passage makes fluid flow through the chromatographic column of corresponding digital number.
Hyperchannel chromatographic column coupling arrangement is mainly used in switching flow passage and makes sample introduction end be connected to different chromatographic columns, internal layer rotor can rotate, only has one with the actuation fluid passage of its synchronous axial system, actuation fluid passage top is interface, for connecting chromatographic apparatus port input, actuation fluid channel end is connected to the fixing fluid passage of outer stator.Internal layer rotor top is provided with follower gear, is meshed with the driving gear of drive motor, controls drive motor drive internal layer rotor rotation fixed angle to reach the object of switch fluids passage by control panel.Top joint and internal layer rotor are connected to each other, but top joint non rotating in internal layer rotor turns process, and ensure internal layer rotor, that outer stator frequently rotates channel seal in handoff procedure is good.Outer stator interior is provided with multiple fixing fluid passage and is composed of digital number, and the inner, fixing fluid passage can be connected with the actuation fluid passage of internal layer rotor, fixes outer end, fluid passage as interface for connecting gas chromatographic column.This device is formed by Precision Machining, thus it is good to ensure that internal layer rotor frequently rotates channel seal in handoff procedure.
Fixed pedestal is mainly used in the fixed installation of drive motor and conductive track thereof, hyperchannel chromatographic column coupling arrangement, gas chromatographic column.
Compared with prior art, present invention achieves a kind of separate unit gas chromatograph and connect multiple gas chromatographic column, manual teardown is not needed to reinstall when changing gas chromatographic column, auto-changeover control sample introduction flows into the intelligence automatic switchover hyperchannel gas chromatographic column coupling arrangement of different gas chromatographic column, changing when using chromatographic column only needs a key to switch, without manual teardown, new chromatographic column is installed, multiple gas chromatographic column is daily is simultaneously fixed on pedestal, conveniently periodic flushing maintenance is carried out to gas chromatographic column, frequently gas chromatographic column is removed and installed when greatly reducing laboratory testing analysis, this device is simple to operate, cheap, be easy to promote, the analysis meeting laboratory chromatographic instrument uses.
Accompanying drawing explanation
Fig. 1 is the system architecture schematic diagram of the embodiment of the present invention.
Fig. 2 is hyperchannel chromatographic column coupling arrangement structural representation in the embodiment of the present invention.
Shown in figure be: 1-hyperchannel chromatographic column coupling arrangement; 2-fixed pedestal; 3-gas chromatographic column; 4-chromatographic column connecting pipe; 5-conductive track; 7-control panel; 8-drive motor; 9-internal layer rotor; 10-top joint; 11-aligns graticule; The outer stator of 12-; 13-actuation fluid passage; 14-fixes fluid passage; 15-follower gear.
Embodiment
Be described in further detail goal of the invention of the present invention below in conjunction with the drawings and specific embodiments, embodiment can not repeat one by one at this, but therefore embodiments of the present invention are not defined in following examples.
As shown in Figures 1 and 2, a kind of intelligent automatic switchover hyperchannel gas chromatographic column coupling arrangement, comprise fixed pedestal 2, multiple gas chromatographic column 3, also comprise the control panel 7 with display screen and two there are many fluid passages and make fluid flow through the hyperchannel chromatographic column coupling arrangement 1 of different gas chromatographic columns 3 by rotating switch fluids passage, described hyperchannel chromatographic column coupling arrangement 1 is arranged at fixed pedestal 2 top and bottom respectively, described control panel 7 is connected with two hyperchannel chromatographic column coupling arrangement 1 circuit respectively and switches hyperchannel chromatographic column coupling arrangement 1 switch fluids passage for controlling, described gas chromatographic column 3 is connected between the corresponding fluid passage of two hyperchannel chromatographic column coupling arrangements 1 in parallel by chromatographic column connecting pipe 4.
Described hyperchannel chromatographic column coupling arrangement 1 comprises the outer stator 12 of the tubular be fixedly installed, be arranged at the column internal layer rotor 9 of the endoporus of outer stator 12 and the inner hole wall rotary seal with outer stator 12 rotationally, top joint 10, follower gear 15, the drive motor 8 be connected with control panel 7 circuit, the fixing fluid passage 14 that six connect gas chromatographic column 3 is disposed radially in described outer stator 12, a L shape actuation fluid passage 13 is provided with in described internal layer rotor 9, described actuation fluid passage 13 upper end is connected with top joint 10, lower end seals with corresponding fixing fluid passage 14 and docks after internal layer rotor 9 rotates predetermined angular, form complete fluid passage, described follower gear 15 is fixedly installed on internal layer rotor 9 upper end coaxially, described drive motor 8 to be driven with follower gear 15 by driving gear and is connected.
Described internal layer rotor 9 is provided with on outer stator 12 graticule 11 that aligns.
Described drive motor 8 is stepper motor or servomotor, and the present embodiment selects servomotor, and precision is high.
Transmission gear ratio between drive motor 8 and hyperchannel chromatographic column coupling arrangement and the kind of drive need the number according to fluid passage and design, and the Digital ID number on display screen is consistent with the number of fixing fluid passage 14.
Use front installation: six roots of sensation gas chromatographic column 3 is connected to fixed pedestal 2(Fig. 1 according to accompanying drawing 1) on, and corresponding for gas chromatographic column 3 model and the corresponding digital number that is installed on fixed pedestal 2 are registered.
Use procedure: determine to test gas chromatographic column 3 model used, mouse moves tracking cross in required gas chromatographic column 3 correspondence numerically, double left button mouse click sends the pulse signal of predetermined quantity to drive motor 8, and after drive motor 8 drives internal layer rotor 9 to rotate to an angle, switch fluids passage makes fluid circulate in this gas chromatographic column 3.
Whole process greatly reduces the process frequently removing and installing gas chromatographic column 3 in analytical test process above; Pillar can be maintained by periodic flushing standby time at gas chromatographic column 3 simultaneously, substantially prolongs the serviceable life of gas chromatographic column 3.
The above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (4)
1. an intelligent automatic switchover hyperchannel gas chromatographic column coupling arrangement, comprise fixed pedestal (2), multiple gas chromatographic column (3), it is characterized in that: also comprise the control panel (7) with display screen and two there are many fluid passages and make fluid flow through the hyperchannel chromatographic column coupling arrangement (1) of different gas chromatographic columns (3) by rotating switch fluids passage, described hyperchannel chromatographic column coupling arrangement (1) is arranged at fixed pedestal (2) top and bottom respectively, described control panel (7) is connected with two hyperchannel chromatographic column coupling arrangement (1) circuit respectively and switches hyperchannel chromatographic column coupling arrangement (1) switch fluids passage for controlling, described gas chromatographic column (3) is connected between the corresponding fluid passage of two hyperchannel chromatographic column coupling arrangements (1) in parallel by chromatographic column connecting pipe (4).
2. intelligent automatic switchover hyperchannel gas chromatographic column coupling arrangement according to claim 1, it is characterized in that: described hyperchannel chromatographic column coupling arrangement (1) comprises the outer stator (12) of the tubular be fixedly installed, be arranged at the column internal layer rotor (9) of the endoporus of outer stator (12) and the inner hole wall rotary seal with outer stator (12) rotationally, top joint (10), follower gear (15), the drive motor (8) be connected with control panel (7) circuit, the fixing fluid passage (14) that many connect gas chromatographic column (3) is disposed radially in described outer stator (12), L shape actuation fluid passage (13) is provided with in described internal layer rotor (9), described actuation fluid passage (13) upper end is connected with top joint (10), lower end seals with corresponding fixing fluid passage (14) and docks after internal layer rotor (9) rotates predetermined angular, form complete fluid passage, described follower gear (15) is fixedly installed on internal layer rotor (9) upper end coaxially, described drive motor (8) to be driven with follower gear (15) by driving gear and is connected.
3. intelligent automatic switchover hyperchannel gas chromatographic column coupling arrangement according to claim 2, is characterized in that: described internal layer rotor (9) is provided with the graticule that aligns (11) with on outer stator (12).
4. the intelligence automatic switchover hyperchannel gas chromatographic column coupling arrangement according to any one of claims 1 to 3, is characterized in that: described drive motor (8) is stepper motor or servomotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410608200.5A CN104330508B (en) | 2014-10-31 | 2014-10-31 | Intelligence automatic switchover multichannel gas chromatographic column attachment means |
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| CN201410608200.5A CN104330508B (en) | 2014-10-31 | 2014-10-31 | Intelligence automatic switchover multichannel gas chromatographic column attachment means |
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| CN104330508A true CN104330508A (en) | 2015-02-04 |
| CN104330508B CN104330508B (en) | 2016-10-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940353A (en) * | 2017-04-28 | 2017-07-11 | 中国科学院电子学研究所 | Many sensing chromatogram detectors and its detection method |
| CN109100459A (en) * | 2018-10-10 | 2018-12-28 | 兰州东立龙信息技术有限公司 | A kind of chromatography block |
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| US3964513A (en) * | 1975-04-08 | 1976-06-22 | Hoffmann-La Roche Inc. | Rotating sampling valve |
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| CN101446361A (en) * | 2007-10-29 | 2009-06-03 | 气体产品与化学公司 | Rotary valve |
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2014
- 2014-10-31 CN CN201410608200.5A patent/CN104330508B/en not_active Expired - Fee Related
Patent Citations (10)
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| US3964513A (en) * | 1975-04-08 | 1976-06-22 | Hoffmann-La Roche Inc. | Rotating sampling valve |
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| US6207049B1 (en) * | 1999-07-30 | 2001-03-27 | Agilent Technologies, Inc. | Multichannel capillary column |
| CN101617225A (en) * | 2007-02-22 | 2009-12-30 | 通用电气健康护理生物科学股份公司 | Selector valve |
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| CN102190704A (en) * | 2010-03-17 | 2011-09-21 | 中国科学院过程工程研究所 | Protein chromatography system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940353A (en) * | 2017-04-28 | 2017-07-11 | 中国科学院电子学研究所 | Many sensing chromatogram detectors and its detection method |
| CN109100459A (en) * | 2018-10-10 | 2018-12-28 | 兰州东立龙信息技术有限公司 | A kind of chromatography block |
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| CN104330508B (en) | 2016-10-05 |
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