CN207964744U - Monitoring system for liquid chromatographic system - Google Patents
Monitoring system for liquid chromatographic system Download PDFInfo
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- CN207964744U CN207964744U CN201820366815.5U CN201820366815U CN207964744U CN 207964744 U CN207964744 U CN 207964744U CN 201820366815 U CN201820366815 U CN 201820366815U CN 207964744 U CN207964744 U CN 207964744U
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Abstract
The utility model discloses a kind of monitoring systems for liquid chromatographic system, the liquid chromatographic system at least has liquid transmission pipeline, the mobile phase container for holding mobile phase and the waste liquid collection vessel for holding waste liquid, it includes sensor group and monitoring device, and the sensor group has at least one of liquid level sensor, line-pressure sensor, leakage sensor and air bubble sensor；The monitoring device includes signal acquiring board, and the signal acquiring board is connected with the signal output end of the respective sensor in sensor group, so that the monitoring device is used to receive the corresponding information of respective sensor feedback.The utility model can monitor liquid chromatographic system mobile phase height of liquid level during the experiment and/or waste liquid height of liquid level and/or whether have situations such as leakage and/or loine pressure and/or bubble generate in real time, the generation phenomenon for avoiding accident in experimentation improves safety and the efficiency of liquid chromatographic system.
Description
Technical field
The utility model is related to a kind of monitoring systems for liquid chromatographic system.
Background technology
Currently, in liquid chromatogram experiment, the accidents such as mobile phase solvent liquid level is relatively low, waste liquid bottle is full often seriously affect
The experiment of operator results even in the failure of experiment, the loss of sample；Pipeline liquid leakage, pipeline superpressure can lead to important device
The damage of part generates safety accident；The generation of bubble can influence the accuracy etc. of experimental data in pipeline.
The Chinese patent of Publication No. CN203705405U is authorized to disclose a kind of liquid chromatographic system, the sensor
It need to be placed in each solvent bottle for needing to detect, be judged using voltage sensitive sensor or photosensitive sensor, it is pre- to carry out
It is alert；This method that sensor is placed in organic solvent is comparatively laborious, while being wanted to the sensor material in merging organic solvent
The problems such as asking higher, needing to consider corrosivity, service life, in addition, lacking monitoring hand to other experimental factors in system
Section.
Invention content
Technical problem to be solved in the utility model is to overcome the deficiencies of existing technologies, and is provided a kind of for liquid chromatogram
The monitoring system of system, it can monitor liquid chromatographic system mobile phase height of liquid level during the experiment and/or useless in real time
Liquid height of liquid level and/or whether there is situations such as leakage and/or loine pressure and/or bubble generate, avoids accident in experimentation
Generation phenomenon, improve safety and the efficiency of liquid chromatographic system.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of prison for liquid chromatographic system
Examining system, the liquid chromatographic system at least have liquid transmission pipeline, the mobile phase container for holding mobile phase and
Waste liquid collection vessel for holding waste liquid, it includes：
There is liquid level sensor, line-pressure sensor, leakage sensor and bubble to pass for sensor group, the sensor group
At least one of sensor；Wherein, the liquid level sensor is used to acquire liquid level letter of the mobile phase in mobile phase container
The liquid level information of breath and/or acquisition waste liquid in waste liquid collection vessel, the line-pressure sensor is for acquiring liquid conveying
Pressure information in pipeline, the leakage sensor are used to acquire the leakage letter in liquid chromatographic system fluid path on an at least position
Breath, the air bubble sensor are used to acquire the bubble information of the liquid in liquid chromatographic system fluid path in an at least position；
Monitoring device, the monitoring device include signal acquiring board, and the signal acquiring board is corresponding in sensor group
The signal output end of sensor is connected, so that the monitoring device is used to receive the corresponding information of respective sensor feedback.
Further for can corresponding information be more than corresponding threshold value when, warning reminding user, the monitoring device
Further include alarm appliance, the control signal of the alarm appliance is connected with the control output end of the signal acquiring board, so as to
The signal acquiring board controls the work of alarm appliance according to the corresponding information that respective sensor is fed back.
A kind of signal acquiring board specific constructive form is further provided, the signal acquiring board is correspondingly provided with liquid level
At least one of observation circuit, pipeline pressure monitor circuit, leakage observation circuit, bubble observation circuit；Correspondingly, the liquid
The signal output end of level sensor is connected with the level monitoring circuit, the signal output end of the line-pressure sensor and institute
It states pipeline pressure monitor circuit to be connected, the signal output end of the leakage sensor is connected with leakage observation circuit, the bubble
The signal output end of sensor is connected with bubble observation circuit.
Further, further include chromatograph host, the signal acquiring board and color for the monitoring system of liquid chromatographic system
Spectrometer main-machine communication connects, so that the signal acquiring board sends the corresponding information that respective sensor is fed back to chromatograph master
Machine, the signal acquiring board are connected with the chromatograph host by RS232 communication modes or wireless network mode.
Further provide a kind of concrete structure of liquid chromatographic system, the liquid chromatographic system also have infusion pump,
Mixing chamber, chromatographic column and pylon module, detector cell and component collection device, the input end of the infusion pump are stretched by pipeline
Enter in the mobile phase container, the outlet of the infusion pump is connected with the import of mixing chamber, the outlet of the mixing chamber
It is connected with the entrance of chromatographic column and pylon module, the outlet of the chromatographic column and pylon module and the import phase of detector cell
Even, the group sub-export of the detector cell is connected with component collection device, and the waste liquid outlet of the detector cell passes through pipe
Road is stretched into the waste liquid collection vessel.
Further, the liquid level sensor includes mobile phase liquid level sensor and waste liquid liquid level sensor, the mobile phase
Liquid level sensor is for acquiring liquid level information of the mobile phase in mobile phase container；The waste liquid liquid level sensor is for adopting
Collect liquid level information of the waste liquid in waste liquid collection vessel.
Waste liquid level sensing is avoided further for avoiding mobile phase liquid level sensor from being directly placed into mobile phase solvent neutralization
Device is directly placed into waste liquid, and the mobile phase liquid level sensor is vapour-pressure type liquid level sensor, and the input end of the infusion pump is logical
Crossing piping connection has the liquid inlet suction strainer head stretched into mobile phase container, the liquid passage inlet of the mobile phase liquid level sensor
It is connected on liquid inlet suction strainer head, the waste liquid liquid level sensor is vapour-pressure type liquid level sensor, and the detector cell gives up
Liquid outlet has the waste liquid suction strainer head for stretching into waste liquid collection vessel, the liquid passage inlet of the waste liquid liquid level sensor by piping connection
It is connected on waste liquid suction strainer head.
Further, the liquid that the line-pressure sensor is connected between the outlet of infusion pump and the import of mixing chamber is defeated
It send in pipeline.
Further, the leakage sensor is connected in infusion pump or in mixing chamber.
Further, the air bubble sensor includes being mounted on the entrance of detector cell to enter detector list to monitor
The detector cell import air bubble sensor of the bubble information of liquid in member and/or mounted on the exit of infusion pump to supervise
Survey the infusion pump outlets air bubble sensor of the bubble information of the liquid come out from infusion pump outlets.
After using above-mentioned technical proposal, this monitoring system is monitored in liquid chromatographic system in real time using corresponding sensor
Situation occur, signal acquiring board acquire respective sensor real-time monitor value, can between signal acquiring board and chromatograph host
To use RS232 communication modes or wireless communication mode, the data of monitoring are sent to chromatograph host into line number in real time
The alarm threshold value of each sensor can be preset according to operations, the signal acquiring boards such as processing, meanwhile, which can also lead to
Chromatograph host is crossed to modify through RS232 communication modes or wireless communication mode；In addition, this monitoring system carries alarm
Part when sensor gathered data reaches threshold value when certain road, can clearly remind user's alarm content.
Description of the drawings
Fig. 1 is the arrangement schematic diagram of the monitoring system for liquid chromatographic system of the utility model；
Fig. 2 is the control principle drawing of the monitoring system for liquid chromatographic system of the utility model.
Specific implementation mode
In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model.
As shown in Figure 1, 2, a kind of monitoring system for liquid chromatographic system, the liquid chromatographic system at least have liquid
Body transfer pipeline, the mobile phase container 1 for holding mobile phase and the waste liquid collection vessel 8 for holding waste liquid, it is wrapped
It includes：
Sensor group, the sensor group have liquid level sensor, line-pressure sensor 4, leakage sensor 10 gentle
It steeps in sensor；Liquid level sensor, line-pressure sensor 4, leakage sensor 10 and air bubble sensor can be arranged one with
On, in the present embodiment, liquid level sensor is provided with 2, and line-pressure sensor 4 is provided with 1, and leakage sensor 10 is arranged
There is 1, air bubble sensor is provided with 2, and but not limited to this；
Wherein, the line-pressure sensor 4 is used to acquire the pressure information in liquid transmission pipeline, the leakage sensing
Device 10 is used to acquire the leakage information in liquid chromatographic system fluid path on an at least position, and the air bubble sensor is used for collection liquid
The bubble information of liquid in phase chromatographic system fluid path in an at least position, in the present embodiment, one of liquid level sensor
For acquiring liquid level information of the mobile phase in mobile phase container 1；Another liquid level sensor exists for acquiring waste liquid
Liquid level information in waste liquid collection vessel 8；
Monitoring device, the monitoring device include signal acquiring board 14, the signal acquiring board 14 in sensor group
The signal output end of respective sensor is connected, so that the monitoring device is used to receive the corresponding information of respective sensor feedback.
As shown in Fig. 2, the monitoring device further includes alarm appliance, the control signal of the alarm appliance and the letter
The control output end of number collection plate 14 is connected, the corresponding information control fed back according to respective sensor so as to the signal acquiring board 14
The work of alarm appliance processed；Wherein, alarm appliance can be intelligent sound warning device.
As shown in Fig. 2, the signal acquiring board 14 be correspondingly provided with level monitoring circuit, pipeline pressure monitor circuit,
Leakage observation circuit, bubble observation circuit；Correspondingly, the signal output end of the liquid level sensor and the level monitoring circuit
It is connected, the signal output end of the line-pressure sensor 4 is connected with the pipeline pressure monitor circuit, the leakage sensor
10 signal output end is connected with leakage observation circuit, signal output end and the bubble observation circuit phase of the air bubble sensor
Even.
As shown in Fig. 2, the monitoring system for liquid chromatographic system further includes chromatograph host, the signal acquiring board 14
It is connect with chromatograph main-machine communication, so that the signal acquiring board 14 sends the corresponding information that respective sensor is fed back to chromatography
Instrument host；Specifically, the signal acquiring board 14 passes through RS232 communication modes or wireless network mode with the chromatograph host
It is connected.
As shown in Figure 1, the present embodiment enumerates a kind of liquid chromatographic system of typical structure, the liquid chromatographic system is in addition to tool
There are liquid transmission pipeline, the mobile phase container 1 for holding mobile phase and the waste liquid collection vessel 8 for holding waste liquid
Outside, also there is infusion pump 3, mixing chamber 5, chromatographic column and pylon module 6, detector cell 7 and component collection device 12, it is described defeated
The input end of liquid pump 3 is stretched by pipeline in the mobile phase container 1, the outlet of the infusion pump 3 and mixing chamber 5 into
Mouth is connected, and the outlet of the mixing chamber 5 is connected with the entrance of chromatographic column and pylon module 6, the chromatographic column and pylon module 6
Outlet be connected with the import of detector cell 7, the group sub-export of the detector cell 7 is connected with component collection device 12,
The waste liquid outlet of the detector cell 7 is stretched by pipeline in the waste liquid collection vessel 8.In mobile phase container 1
Mobile phase flows to mixing chamber 5 by infusion pump 3, enters in detector cell 7 using chromatographic column and pylon module 6, according to color
Spectrum analysis determines that collected component enters in component collection device 12, does not need group and is diverted into waste liquid collection vessel 8.
As shown in Figure 1, in the present embodiment, one of liquid level sensor is mobile phase liquid level sensor, the flowing
Phase liquid level sensor is for acquiring liquid level information of the mobile phase in mobile phase container 1, specifically, the mobile phase liquid level
Sensor is vapour-pressure type liquid level sensor, and the input end of the infusion pump 3 stretches into mobile phase container 1 by piping connection
In liquid inlet suction strainer head 2, the liquid passage inlet of the mobile phase liquid level sensor is connected on liquid inlet suction strainer head 2；
As shown in Figure 1, in the present embodiment, another liquid level sensor is waste liquid liquid level sensor；The waste liquid liquid
Level sensor is for acquiring liquid level information of the waste liquid in waste liquid collection vessel 8；Specifically, the waste liquid liquid level sensor is gas
Pressure type liquid level sensor, the waste liquid outlet of the detector cell 7 have the waste liquid for stretching into waste liquid collection vessel 8 by piping connection
The liquid passage inlet of suction strainer head 9, the waste liquid liquid level sensor is connected on waste liquid suction strainer head 9.Two above vapour-pressure type liquid level
Sensor is to obtain real-time level by A/D conversion conversions by monitoring real-time air pressure, then by real-time air pressure.
As shown in Figure 1, the line-pressure sensor 4 is connected between the outlet of infusion pump 3 and the import of mixing chamber 5
In liquid transmission pipeline, the line-pressure sensor 4 monitors the pressure in liquid transmission pipeline in real time, ensures security of system
And ensure the safe pressure of the important devices such as pump, pipeline.
As shown in Figure 1, the leakage sensor 10 is arranged in infusion pump 3, can also be arranged in mixing chamber 5, institute
Leakage sensor 10 is stated in addition to being arranged other than two above position, remaining in liquid chromatographic system is can also be provided at and is easy leakage
Place.
As shown in Figure 1, in the present embodiment, one of air bubble sensor is the entrance mounted on detector cell 7
To monitor the detector cell import air bubble sensor 11 for the bubble information for entering the liquid in detector cell 7, bubble passes
Sensor uses ultrasonic detection method, is detected to the bubble in pipeline；Detector cell import can be read in chromatographic column host
Air bubble sensor 11 transmit bubble information, the extinction spectrogram in experimentation is analyzed, to bubble generate influence into
Row algorithm process, another air bubble sensor are to be come out mounted on the exit of infusion pump 3 to monitor from infusion pump 3
Liquid bubble information infusion pump outlets air bubble sensor 13, infusion pump outlets air bubble sensor 13 is to the pipe after infusion pump
Road air-tightness is monitored, if there is bubble, be may remind the user that and is checked pipeline air-tightness.
The monitoring system of the present embodiment includes following monitoring function：Level monitoring function, leakage monitoring function, bubble monitoring
Function, pipeline pressure monitor function and other monitoring functions, certain its can also have other monitoring functions, for example system temperature
Spend monitoring function, humidity detection function etc..
This monitoring system monitors the situation in liquid chromatographic system using corresponding sensor and occurs in real time, signal acquiring board
The real-time monitor value of 14 acquisition respective sensors, may be used RS232 communication parties between signal acquiring board 14 and chromatograph host
The data of monitoring are sent to chromatograph host and carry out the operations such as data processing by formula or wireless communication mode in real time, described
Signal acquiring board 14 can preset the alarm threshold value of each sensor, meanwhile, which can also be passed through by chromatograph host
RS232 communication modes or wireless communication mode are modified；In addition, this monitoring system carries alarm appliance, when certain road sensor
When gathered data reaches threshold value, user's alarm content can be clearly reminded.
Particular embodiments described above, the technical issues of the utility model is solved, technical solution and advantageous effect into
It has gone further description, it should be understood that the foregoing is merely specific embodiment of the utility model, and has not had to
In limitation the utility model, within the spirit and principle of the utility model, any modification, equivalent substitution and improvements done
Deng should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of monitoring system for liquid chromatographic system, the liquid chromatographic system at least has liquid transmission pipeline, uses
In the mobile phase container (1) for holding mobile phase and waste liquid collection vessel (8) for holding waste liquid, which is characterized in that it
Including：
Sensor group, the sensor group have liquid level sensor, line-pressure sensor (4), leakage sensor (10) gentle
Steep at least one of sensor；Wherein, the liquid level sensor is for acquiring mobile phase in mobile phase container (1)
The liquid level information of liquid level information and/or acquisition waste liquid in waste liquid collection vessel (8), the line-pressure sensor (4) are used for
The pressure information in liquid transmission pipeline is acquired, the leakage sensor (10) is for acquiring in liquid chromatographic system fluid path at least
Leakage information on one position, the air bubble sensor are used to acquire the liquid in liquid chromatographic system fluid path in an at least position
Bubble information；
Monitoring device, the monitoring device include signal acquiring board (14), in the signal acquiring board (14) and sensor group
The signal output end of respective sensor is connected, so that the monitoring device is used to receive the corresponding information of respective sensor feedback.
2. the monitoring system according to claim 1 for liquid chromatographic system, it is characterised in that：The monitoring device is also
Including alarm appliance, the control signal of the alarm appliance is connected with the control output end of the signal acquiring board (14), with
Toilet states the work that signal acquiring board (14) controls alarm appliance according to the corresponding information that respective sensor is fed back.
3. the monitoring system according to claim 2 for liquid chromatographic system, it is characterised in that：The signal acquiring board
(14) it is correspondingly provided in level monitoring circuit, pipeline pressure monitor circuit, leakage observation circuit, bubble observation circuit extremely
Few one kind；Correspondingly, the signal output end of the liquid level sensor is connected with the level monitoring circuit, and the loine pressure passes
The signal output end of sensor (4) is connected with the pipeline pressure monitor circuit, the signal output end of the leakage sensor (10)
It is connected with leakage observation circuit, the signal output end of the air bubble sensor is connected with bubble observation circuit.
4. the monitoring system according to claim 1 for liquid chromatographic system, it is characterised in that：Further include chromatograph master
Machine, the signal acquiring board (14) connect with chromatograph main-machine communication, so that the signal acquiring board (14) is by respective sensor
The corresponding information of feedback sends chromatograph host to, and the signal acquiring board (14) is logical by RS232 with the chromatograph host
Letter mode or wireless network mode are connected.
5. the monitoring system according to claim 1 for liquid chromatographic system, it is characterised in that：The liquid chromatogram system
System also has infusion pump (3), mixing chamber (5), chromatographic column and pylon module (6), detector cell (7) and component collection device
(12), the input end of the infusion pump (3) is stretched by pipeline in the mobile phase container (1), the infusion pump (3)
Outlet is connected with the import of mixing chamber (5), outlet and chromatographic column and the entrance phase of pylon module (6) of the mixing chamber (5)
Even, the outlet of the chromatographic column and pylon module (6) is connected with the import of detector cell (7), the detector cell (7)
Group sub-export is connected with component collection device (12), and the waste liquid outlet of the detector cell (7) stretches into described give up by pipeline
In liquid collection vessel (8).
6. the monitoring system according to claim 5 for liquid chromatographic system, it is characterised in that：The liquid level sensor
Including mobile phase liquid level sensor and waste liquid liquid level sensor, the mobile phase liquid level sensor is being flowed for acquiring mobile phase
Liquid level information in phase container (1)；The waste liquid liquid level sensor is for acquiring waste liquid in waste liquid collection vessel (8)
Liquid level information.
7. the monitoring system according to claim 6 for liquid chromatographic system, it is characterised in that：The mobile phase liquid level
Sensor is vapour-pressure type liquid level sensor, and the input end of the infusion pump (3) stretches into mobile phase by piping connection and holds appearance
The liquid passage inlet of liquid inlet suction strainer head (2) in device (1), the mobile phase liquid level sensor is connected to liquid inlet suction strainer head (2)
On, the waste liquid liquid level sensor is vapour-pressure type liquid level sensor, and the waste liquid outlet of the detector cell (7) is connected by pipeline
It is connected to the waste liquid suction strainer head (9) for stretching into waste liquid collection vessel (8), the liquid passage inlet of the waste liquid liquid level sensor is connected into useless
On liquid suction strainer head (9).
8. the monitoring system according to claim 5 for liquid chromatographic system, it is characterised in that：The loine pressure passes
Sensor (4) is connected in the liquid transmission pipeline between the outlet of infusion pump (3) and the import of mixing chamber (5).
9. the monitoring system according to claim 5 for liquid chromatographic system, it is characterised in that：The leakage sensor
(10) setting is in infusion pump (3) or in mixing chamber (5).
10. the monitoring system according to claim 5 for liquid chromatographic system, it is characterised in that：The bubble sensing
Device includes being mounted on the entrance of detector cell (7) to monitor the bubble information for entering the liquid in detector cell (7)
Detector cell import air bubble sensor (11) and/or mounted on the exit of infusion pump (3) to monitor from infusion pump (3)
The infusion pump outlets air bubble sensor (13) of the bubble information of the liquid of outlet out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820366815.5U CN207964744U (en) | 2018-03-16 | 2018-03-16 | Monitoring system for liquid chromatographic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820366815.5U CN207964744U (en) | 2018-03-16 | 2018-03-16 | Monitoring system for liquid chromatographic system |
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| CN207964744U true CN207964744U (en) | 2018-10-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103367A (en) * | 2019-12-20 | 2020-05-05 | 刘仲 | Liquid chromatography mobile phase bottle with liquid drying recognition device |
| CN114624377A (en) * | 2021-03-09 | 2022-06-14 | 浙江福立分析仪器股份有限公司 | Liquid leakage double-monitoring alarm protection system and method for liquid chromatograph |
-
2018
- 2018-03-16 CN CN201820366815.5U patent/CN207964744U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103367A (en) * | 2019-12-20 | 2020-05-05 | 刘仲 | Liquid chromatography mobile phase bottle with liquid drying recognition device |
| CN114624377A (en) * | 2021-03-09 | 2022-06-14 | 浙江福立分析仪器股份有限公司 | Liquid leakage double-monitoring alarm protection system and method for liquid chromatograph |
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