CN204065040U - A kind of liquid chromatogram mobile phase prior-warning device - Google Patents
A kind of liquid chromatogram mobile phase prior-warning device Download PDFInfo
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- CN204065040U CN204065040U CN201420525211.2U CN201420525211U CN204065040U CN 204065040 U CN204065040 U CN 204065040U CN 201420525211 U CN201420525211 U CN 201420525211U CN 204065040 U CN204065040 U CN 204065040U
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- mobile phase
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- warning device
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Abstract
The utility model discloses a kind of liquid chromatogram mobile phase prior-warning device, primarily of liquid chromatograph and intelligent control system composition, injector, chromatographic column, detecting device and waste liquid bottle that described liquid chromatograph is comprised pump and connected successively by pipeline, the input end of described pump connects mobile phase and holds bottle, and delivery side of pump is connected with the input end of chromatographic column through injector by pipeline; Described intelligent control system comprises temperature sensor, pressure transducer, PLC main frame, PLC module and touch display screen, described PLC module and the grafting of PLC main frame, described temperature sensor and pressure transducer are arranged at mobile phase respectively and hold bottle, the analog signals of temperature sensor and pressure transducer collection is accepted by PLC module, convert digital signal to, send into touch display screen by PLC main frame.The utility model, by monitoring in real time the working temperature of mobile phase and working pressure, avoids mobile phase Yin Wendu to raise or pressure reduces and causes bubble to be overflowed.
Description
Technical field
The utility model relates to technical field of analytical chemistry, is specifically related to a kind of liquid chromatogram mobile phase prior-warning device.
Background technology
Liquid chromatogram mobile phase typically refers to various low boiling point solvent and aqueous solution.Compare with gas chromatography, liquid chromatogram mobile phase not only selectable range is larger, and it is the very important adjustable factor that impact is separated.At present, the mobile phase of conventional liquid chromatograph is divided into polarity class, nonpolar class, volatile class, not volatile class etc., and the solvent bottle holding mobile phase is mostly the unenclosed construction communicated with air, unenclosed construction for conventional non-volatile class neutral mobile phase be not much affected, but for easily to absorb Carbon Dioxide in Air and affect the mobile phase of the aobvious alkalescence of its PH value, volatile mobile phase that organic phase proportion is larger, containing volatile pungency component mobile phase have larger limitation.
For solving the problem, publication number is that the Chinese patent of CN203635201U discloses a kind of phase chromatography-use mobile phase apparatus for placing, this device comprises the wide-necked bottle holding mobile phase, there is the feed tube of detachable connector, the valvular bend pipe of tool, there is the polybag of air intake opening and gas outlet, the bottle stopper that described wide-necked bottle comprises vial body and matches with vial body, bottle stopper have two through holes matched with feed tube and bend pipe respectively, one end that feed tube extend in wide-necked bottle is fixedly connected with sintered glass filter, the valve place of bend pipe is fixedly connected with the air intake opening of polybag, the volume of described polybag is the half of wide-necked bottle volume.This technical scheme has good sealing effectiveness, be applicable to volatile class mobile phase, but because the flat gas being employing polybag is to judge whether mobile phase is finished, judgment accuracy is poor, especially be difficult to judge whether mobile phase is finished when polybag exists leakage or mobile phase produces bubble, also can not produce early warning simultaneously, therefore can not make Real-Time Monitoring to mobile phase.
In order to realize supervision to liquid chromatogram mobile phase and prompting, publication number is that the Chinese patent of CN 202734898 U discloses a kind of supervision alarm set for liquid chromatogram mobile phase, this device arranges Weighing module in the bottom of flowing bottle, flowing bottle is provided with exterior display device, by exterior display device highlight indication contain residual volume and the replacing construction of mobile phase; But when causing mobile phase to produce bubble when temperature or pressure change, display device can not make prompting or early warning, therefore causes system jam, causes unnecessary economic loss.
Utility model content
The purpose of this utility model is the deficiency overcome existing for prior art, provides a kind of liquid chromatogram mobile phase prior-warning device.
The utility model is achieved by following technical solution:
A kind of liquid chromatogram mobile phase prior-warning device, primarily of liquid chromatograph and intelligent control system composition, injector, chromatographic column, detecting device and waste liquid bottle that described liquid chromatograph is comprised pump and connected successively by pipeline, the input end of described pump connects mobile phase and holds bottle, and delivery side of pump is connected with the input end of chromatographic column through injector by pipeline; Described intelligent control system comprises temperature sensor, pressure transducer, PLC main frame, PLC module and touch display screen, described PLC module and the grafting of PLC main frame, described temperature sensor and pressure transducer are arranged at mobile phase respectively and hold bottle, the analog signals of temperature sensor and pressure transducer collection is accepted by PLC module, convert digital signal to, send into touch display screen by PLC main frame.
Further, described mobile phase holds the filtrator being provided with bottom bottle and being connected with pipeline.
Further, described intelligent control system also comprises radiator fan, power light, abnormal pilot lamp and hummer.Indicating fault or warning is carried out by pilot lamp and hummer.
Further, described filtrator adopts sintered glass filter.
Further, described detecting device adopts conductometric detector.
The beneficial effects of the utility model are:
Compared with prior art, working temperature and the working pressure of the utility model by adopting PLC intelligent control system to monitor mobile phase in real time, mobile phase Yin Wendu rising or pressure is avoided to reduce and cause bubble to be overflowed, prevent chance failure from occurring, improve the security of the work of liquid chromatograph, avoid causing unnecessary economic loss.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Wherein in Fig. 1, each several part is:
1-mobile phase holds bottle; 2-pump; 3-injector; 4-chromatographic column; 5-detecting device; 6-computing machine; 7-waste liquid bottle; 8-temperature sensor; 9-pressure transducer; 10-PLC main frame; 11-PLC module; 12-touch display screen; 13-filtrator.
Embodiment
The technical solution of the utility model is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Figure 1, a kind of liquid chromatogram mobile phase prior-warning device described in the utility model, primarily of liquid chromatograph and intelligent control system composition, injector 3, chromatographic column 4, detecting device 5 and waste liquid bottle 7 that described liquid chromatograph is comprised pump 2 and connected successively by pipeline, the input end of described pump 2 connects mobile phase and holds bottle 1, and the output terminal of pump 2 is connected through the input end of injector 3 with chromatographic column 4 by pipeline; Described intelligent control system comprises temperature sensor 8, pressure transducer 9, PLC main frame 10, PLC module 11 and touch display screen 12, described PLC module 11 and PLC main frame 10 grafting, described temperature sensor 8 and pressure transducer 9 are arranged at mobile phase respectively and hold bottle 1, the analog signals of temperature sensor 8 and pressure transducer 9 collection is accepted by PLC module 11, convert digital signal to, touch display screen 12 is sent into by PLC main frame 10, show various running parameter, thus the real-time monitoring realized mobile phase and early warning.
Described detecting device 5 is also connected with computing machine 6.
Adopt technique scheme, when applying, liquid chromatogram mobile phase carries tested sample by chromatographic column 4, and mobile phase is delivered to analysis system with stable flow velocity (or pressure) by pump 2; Testing sample passed through injector 3 by Sample introduction before chromatographic column 4, and mobile phase brings sample into chromatographic column 4; In chromatographic column 4, each component is separated because of the difference of the partition factor in Stationary liquid or absorption affinity size, and flow to detecting device 5 with mobile phase successively; The signal detected is delivered to computing machine 6 and is recorded, processes or preserve by detecting device 5, can calculate the concentration of various component to be measured sample from the data of computing machine 6 record, and by discharging of waste liquid in waste liquid bottle 7.
In actual applications, in solvent, the amount of energy dissolved gas raises with temperature and reduces, and thus when solvent moves to the condition of high temperature from low-temperature condition, then the gas of Excessive lysis can be overflowed in the form of bubbles; Meanwhile, when the dividing potential drop of gas increases, gas meltage in a solvent increases, and the solution reached capacity at elevated pressures is once pressure drop will produce bubble.The technical program is monitored in real time by increasing the temperature and pressure of intelligent control system to mobile phase, to avoid the generation of bubble, its principle of work is: measured temperature and pressure analog signals is delivered to PLC module 11 by temperature sensor 8 and pressure transducer 9 respectively, corresponding digital quantity signal is converted to through PLC module 11, digital quantity signal after PLC main frame 10 reads PLC module 11 conversion is also shown by touch display screen 12, so that user observes the running parameter of mobile phase.Simultaneously user is by having carried out the supervision of the selection of the duty to mobile phase, the setting of running parameter and duty to the operation of touch display screen 12; When the temperature of mobile phase or pressure do not meet setting require time; shut down by PLC control system; fault-signal is also exported to PLC output control circuit and is made indication warning loop works by PLC main frame 10, sends sound and light alarm, the method showing phenomenon of the failure by touch display screen 12 simultaneously and fix a breakdown.
Described mobile phase holds the filtrator 13 being provided with bottom bottle 1 and being connected with pipeline.
Described intelligent control system also comprises radiator fan, power light, abnormal pilot lamp and hummer.Indicating fault or warning is carried out by pilot lamp and hummer.
Described filtrator 13 adopts sintered glass filter.
Described detecting device 5 adopts conductometric detector.
Above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.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 do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., within the protection domain that all should be included in the utility model claim.
Claims (5)
1. a liquid chromatogram mobile phase prior-warning device, primarily of liquid chromatograph and intelligent control system composition, the injector (3) that described liquid chromatograph is comprised pump (2) and connected successively by pipeline, chromatographic column (4), detecting device (5) and waste liquid bottle (7), the input end of described pump (2) connects mobile phase and holds bottle (1), the output terminal of pump (2) is connected through the input end of injector (2) with chromatographic column (4) by pipeline, it is characterized in that: described intelligent control system comprises temperature sensor (8), pressure transducer (9), PLC main frame (10), PLC module (11) and touch display screen (12), described PLC module (11) and PLC main frame (10) grafting, described temperature sensor (8) and pressure transducer (9) are arranged at mobile phase respectively and hold bottle (1), the analog signals that temperature sensor (8) and pressure transducer (9) gather is accepted by PLC module (11), convert digital signal to, touch display screen (12) is sent into by PLC main frame (10).
2. a kind of liquid chromatogram mobile phase prior-warning device according to claim 1, is characterized in that: described mobile phase holds bottle (1) bottom and is provided with the filtrator (13) be connected with pipeline.
3. a kind of liquid chromatogram mobile phase prior-warning device according to claim 1, it is characterized in that: described intelligent control system also comprises radiator fan, power light, abnormal pilot lamp and hummer, carry out indicating fault or warning by pilot lamp and hummer.
4. a kind of liquid chromatogram mobile phase prior-warning device according to claim 2, is characterized in that: described filtrator (13) adopts sintered glass filter.
5. a kind of liquid chromatogram mobile phase prior-warning device according to claim 1, is characterized in that: described detecting device (5) adopts conductometric detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420525211.2U CN204065040U (en) | 2014-09-12 | 2014-09-12 | A kind of liquid chromatogram mobile phase prior-warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420525211.2U CN204065040U (en) | 2014-09-12 | 2014-09-12 | A kind of liquid chromatogram mobile phase prior-warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204065040U true CN204065040U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420525211.2U Expired - Fee Related CN204065040U (en) | 2014-09-12 | 2014-09-12 | A kind of liquid chromatogram mobile phase prior-warning device |
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| CN (1) | CN204065040U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237427A (en) * | 2014-09-12 | 2014-12-24 | 华南理工大学 | Liquid chromatography mobile phase early warning device |
| CN105374265A (en) * | 2015-12-15 | 2016-03-02 | 徐州医学院 | High efficiency liquid chromatograph experiment teaching model and experiment method |
-
2014
- 2014-09-12 CN CN201420525211.2U patent/CN204065040U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237427A (en) * | 2014-09-12 | 2014-12-24 | 华南理工大学 | Liquid chromatography mobile phase early warning device |
| CN104237427B (en) * | 2014-09-12 | 2016-04-13 | 华南理工大学 | A kind of liquid chromatogram mobile phase prior-warning device |
| CN105374265A (en) * | 2015-12-15 | 2016-03-02 | 徐州医学院 | High efficiency liquid chromatograph experiment teaching model and experiment method |
| CN105374265B (en) * | 2015-12-15 | 2018-05-22 | 徐州医学院 | A kind of high performance liquid chromatograph experimental teaching model of cobalt and experimental method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20180912 |