CN101825559A - Automatic sample injection device - Google Patents
Automatic sample injection device Download PDFInfo
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- CN101825559A CN101825559A CN 201010170825 CN201010170825A CN101825559A CN 101825559 A CN101825559 A CN 101825559A CN 201010170825 CN201010170825 CN 201010170825 CN 201010170825 A CN201010170825 A CN 201010170825A CN 101825559 A CN101825559 A CN 101825559A
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Abstract
The invention relates to an automatic sample injection device, which comprises a reagent cistern used for storing reagent to be reacted, a sample cistern connected with a water extracting device and used for storing sample solutions, a sample mixing cistern used for caching the reagent to be reacted and the sample solution which are prepared according to a certain proportion, an extracting device which extracts the reagent to be reacted and the sample solution respectively to the sample mixing cistern, and an automatic sample injection control unit used for controlling the extracting device, wherein the extracting device comprises a first peristaltic pump used for extracting the reagent to be reacted in the reagent cistern, a second peristaltic pump used for extracting the sample solution in the sample cistern, and an injection pump connected with the sample mixing cistern, the injection pump realizes the discharge of the liquid in the sample mixing cistern by being pushed back and forth in the sample mixing cistern, the sample mixing cistern and/or the injection pump are/is provided with approach detection modules used for detecting the distance between the sample mixing cistern and the injection pump, and the approach detection modules are connected with the automatic sample injection control unit. The invention has accurate and reliable sample discharge results, and the operation is relatively simple.
Description
Technical field
The present invention relates to a kind of automatic sampling apparatus, particularly a kind of water body that is used for carries out the water sample of online automatic detection and the automatic sampling apparatus of reagent to trace chemical elements.
Background technology
For ease of in marine biogeochemistry research, carrying out routine monitoring, the researchist progressively will be transferred to the scene from the laboratory to the analysis of chemical element in the seawater, at present, in the laboratory in the water body in the colorimetric analysis process of tincture the input mode of water sample and reagent be hand sampling, artificial control sample mix course of reaction and reaction time, this method must have the staff to get involved, the unsuitable on-line analysis that is used for on-the-spot chemical element.For the on-site on-line measurement instrument, all sample introductions and hybrid reaction process all must be to finish automatically under unmanned situation about participating in, auto injection and hybrid reaction process are guaranteed reliability, the repeatability and stable of the measurement result of measuring instrument realizing that robotization accurately controlled the sample introduction ratio of sample and reagent simultaneously.
Chinese patent CN101477034 discloses a kind of online high-spectrum monitoring instrument of water trace element, automatic sample handling system wherein comprises automatic sampling apparatus and control circuit thereof, described automatic sampling apparatus comprises: sample cell, the reagent pond, three-way connection, three-way solenoid valve, sample mix pool device and associated drives control device, according to the control program of setting in the control circuit, make the reagent in the water sample of sample cell and reagent pond inject the sample mix pond of sample mix pool device respectively through three-way connection and three-way solenoid valve by peristaltic pump, injection pump head by the sample mix pool device is sent into pick-up unit by three-way solenoid valve and is carried out trace element and nutritive salt colorimetric analysis test having reacted biased sample in the biased sample pond again, has solved in the water body in the trace element and the on-the-spot on-line automatic colorimetric observation process of nutritive salt sample and reagent accurate proportioning automatically, the technical barrier of sample introduction and hybrid reaction.
Yet in the above-mentioned automatic sample handling system, in the time the liquid in the sample mix device need being discharged, the method that rotating speed by stepper motor and time match realizes, the maximum drawback of this method is exactly a safety inadequately, and very strict to the requirement of rotating speed and time, if rotating speed and time parameter cooperate be not very appropriate the time, just cause the liquid row in the sample mix device not thorough easily, or cause the sample mix device to damage, during using at the scene, this has very big potential safety hazard.
Summary of the invention
At the shortcoming of prior art, the purpose of this invention is to provide the automatic sampling apparatus that a kind of discharge opeing is thorough, prevent the internal components damage.
For achieving the above object, technical scheme of the present invention is: a kind of automatic sampling apparatus, it comprises the reagent pond of depositing question response reagent, the sample cell of depositing sample solution that connects the water body draw-out device, be used for the sample mix pond of buffer memory in the question response reagent and the sample solution of a ratio proportioning, respectively question response reagent and sample solution are extracted to the draw-out device in sample mix pond and be used to control the auto injection control module of draw-out device, this draw-out device comprises first peristaltic pump that is used to extract reagent pond question response reagent, be used for second peristaltic pump of draw samples pond sample solution and the syringe pump that is connected with the sample mix pond, this syringe pump is by promoting the discharge of realization to liquid in the sample mix pond back and forth in the sample mix pond, this sample mix pond and/or syringe pump be provided be used to survey distance between sample mix pond and the syringe pump near detecting module, this is connected with the auto injection control module near detecting module.
Should near detecting module comprise be located on the sample mix pond near switch and be located at detection piece on the syringe pump, this surveys piece at syringe pump during near the sample mix pond, can with touch mutually near switch.
This syringe pump comprise the piston that is plugged in the sample mix pond, the piston handle that is connected with piston end, injection pump head and be plugged in the injection pump head and the screw mandrel that can reciprocatingly move and with terminal the 3rd stepper motor that is connected of screw mandrel, screw mandrel is connected with the piston handle and also can drives the piston handle and reciprocatingly move; This detection piece is located on the piston handle, or is located on the handle anchor clamps that are enclosed within the piston handle outer.
This auto injection control module comprises the monitoring module of real-time monitoring near the detecting module state, and when detecting syringe pump and turn to the sensitive surface in sample mix pond, the auto injection control module sends steering order, stops syringe pump and rotates.
The present invention compared with prior art has following advantage and beneficial effect:
The present invention by be provided with on sample mix pond and/or the syringe pump be used to survey distance between sample mix pond and the syringe pump near detecting module, in the time the liquid in the sample mix pond need being discharged, as long as survey near the state of detecting module just can be accurately, the stock layout process and the stock layout result of reliable control device, it is also relative simple a lot of to operate, avoided the liquid row in the sample mix pond not thorough, or the defective that causes the sample mix pond to be damaged.
Description of drawings
Fig. 1 is the structural representation of automatic sampling apparatus of the present invention;
Fig. 2 is the principle schematic of auto injection control module of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described in detail.
As shown in Figure 1, the invention discloses a kind of automatic sampling apparatus, it comprises the reagent pond 20 of depositing question response reagent, the sample cell of depositing sample solution 21 that connects the water body draw-out device, be used for the sample mix pond 31 of buffer memory in the question response reagent and the sample solution of a ratio proportioning, respectively question response reagent and sample solution are extracted to the draw-out device in sample mix pond 31 and be used to control the auto injection control module of draw-out device, this draw-out device comprises first peristaltic pump that is used to extract reagent pond 20 question response reagent, be used for second peristaltic pump of draw samples pond 21 sample solutions and the syringe pump that is connected with sample mix pond 31, this syringe pump is by promoting the discharge of realization to liquid in the sample mix pond 31 back and forth in sample mix pond 31, this sample mix pond 31 and/or syringe pump be provided be used to survey distance between sample mix pond 31 and the syringe pump near detecting module, this is connected with the auto injection control module near detecting module.
Should near detecting module comprise be located on the sample mix pond 31 near switch 46 and be located at detection piece 47 on the syringe pump, this surveys piece 47 at syringe pump during near sample mix pond 31, can with touch mutually near switch 46.Be fixed near on the switch fixed mount 48 near switch 46, be located in the sample mix pond 31 near switch fixed mount 48.
This syringe pump comprise the piston that is plugged in the sample mix pond 31, the piston handle 32 that is connected with piston end, injection pump head 28 and be plugged in the injection pump head 28 and the screw mandrels 29 that can reciprocatingly move and with screw mandrel 29 terminal the 3rd stepper motors 25 that are connected, screw mandrel 29 is connected with piston handle 32 and also can drives piston handle 32 and reciprocatingly move; This detection piece 47 is located on the piston handle 32, or is located on the handle anchor clamps 33 that are enclosed within piston handle 32 outsides.
As shown in Figure 2, this auto injection control module comprises the monitoring module 49 of real-time monitoring near the detecting module state, and when detecting syringe pump and turn to the sensitive surface in sample mix pond 31, the auto injection control module sends steering order, stops syringe pump and rotates.
This automatic sampling apparatus also comprises a pure water pond 22, and this second peristaltic pump is the binary channels peristaltic pump, and this pure water pond 22 is connected with the input end of second peristaltic pump, and the second wriggling delivery side of pump is connected with sample mix pond 31 and long path liquid core sample cell respectively.
First peristaltic pump is made of first stepper motor 23 and single channel Wriggling Pump Head 26, and wherein, the rotating shaft of the rotating shaft of first stepper motor 23 and single channel Wriggling Pump Head 26 is fixed together;
Second peristaltic pump is made of second stepper motor 24 and binary channels Wriggling Pump Head 27, and wherein, the rotating shaft of the rotating shaft of second stepper motor 24 and binary channels Wriggling Pump Head 27 is fixed together;
Syringe pump comprise the piston that is plugged in the sample mix pond 31, the piston handle 32 that is connected with piston end, injection pump head 28 and be plugged in the injection pump head 28 and the screw mandrels 29 that can reciprocatingly move and with screw mandrel 29 terminal the 3rd stepper motors 25 that are connected, screw mandrel 29 is connected with piston handle 32 and also can drives piston handle 32 and reciprocatingly move.
The a end of second three-way solenoid valve 39 is connected to the b end of three-way connection 43, and a end of three-way connection 43 is by second two-way electromagnetic valve 40, and the c of pass joint 43 end is connected to sample mix pond 31, the second two-way electromagnetic valves 40 and also is connected with the waste water draw-out device.
This auto injection control module also comprises the step motor drive module U2 that is used to drive three stepper motors rotations, be used to drive the driver U3 of first, second three- way solenoid valve 37,39 and 38,40 actions of first, second two-way electromagnetic valve, connect the processor U1 of step motor drive module U2 and driver U3.
In the time the liquid in the sample mix pond 31 need being discharged, if survey near the state of switch 46 just can be accurately, the stock layout process and the stock layout result of control device reliably, operate also relative simply a lot.When the liquid in the needs discharge sample mix pond 31, send the instruction that control the 3rd stepper motor 25 is turned left with certain speed to step motor drive module U2, step motor drive module U2 drives the injection pump head that is attached thereto according to instruction driving the 3rd stepper motor 25 and rotates in the mode of appointment, sample in the biased sample pond 31 is discharged, in this process, this auto injection control module is by the state of the real-time monitoring of monitoring module near switch, when monitoring module 49 detects the detection piece 47 that is installed on the handle anchor clamps 33 and is close to sensitive surface near switch 46, this auto injection control module sends steering order immediately, stops to inject pump head and rotates.
Claims (9)
1. automatic sampling apparatus, it comprises the reagent pond (20) of depositing question response reagent, the sample cell of depositing sample solution (21) that connects the water body draw-out device, be used for the sample mix pond (31) of buffer memory in the question response reagent and the sample solution of a ratio proportioning, respectively question response reagent and sample solution are extracted to the draw-out device of sample mix pond (31) and be used to control the auto injection control module of draw-out device, this draw-out device comprises first peristaltic pump that is used to extract reagent pond (20) question response reagent, be used for second peristaltic pump of draw samples pond (21) sample solution and the syringe pump that is connected with sample mix pond (31), this syringe pump is by promoting the discharge of realization to liquid in sample mix pond (31) back and forth in sample mix pond (31), it is characterized in that, this sample mix pond (31) and/or syringe pump be provided be used to survey distance between sample mix pond (31) and the syringe pump near detecting module, this is connected with the auto injection control module near detecting module.
2. automatic sampling apparatus according to claim 1, it is characterized in that, should near detecting module comprise be located on the sample mix pond (31) near switch (46) and be located at detection piece (47) on the syringe pump, this surveys piece (47) at syringe pump during near sample mix pond (31) sensitive surface, can with touch mutually near switch (46).
3. automatic sampling apparatus according to claim 2, it is characterized in that, this syringe pump comprise the piston that is plugged in the sample mix pond (31), the piston handle (32) that is connected with piston end, injection pump head (28) and be plugged in the injection pump head (28) and the screw mandrel (29) that can reciprocatingly move and with terminal the 3rd stepper motor (25) that is connected of screw mandrel (29), screw mandrel (29) is connected with piston handle (32) and also can drives piston handle (32) and reciprocatingly move; This detection piece (47) is located on the piston handle (32), or is located on the handle anchor clamps (33) that are enclosed within piston handle (32) outside.
4. according to each described automatic sampling apparatus of claim 1 to 3, it is characterized in that, this auto injection control module comprises the monitoring module (49) of real-time monitoring near the detecting module state, when detecting syringe pump and turn to the sensitive surface in sample mix pond (31), the auto injection control module sends steering order, stops syringe pump and rotates.
5. automatic sampling apparatus according to claim 4, it is characterized in that, this automatic sampling apparatus (6) also comprises a pure water pond (22), this second peristaltic pump is the binary channels peristaltic pump, this pure water pond (22) is connected with the input end of second peristaltic pump, and the second wriggling delivery side of pump is connected with sample mix pond (31) and long path liquid core sample cell (3) respectively.
6. automatic sampling apparatus according to claim 5, it is characterized in that: reagent pond (20) be installed in first peristaltic pump on first peristaltic pump tube (34) an end with communicate, the a end of another termination second four-way connection (42) of first peristaltic pump tube (34), the b end of sample cell (21) and first four-way connection (41), the d of first four-way connection (41) end be installed in second peristaltic pump on the end of second peristaltic pump tube (35) of a passage communicate, the other end of second peristaltic pump tube (35) links to each other with a end of first three-way solenoid valve (37), the a end of first four-way connection (41) links to each other with the b end of first three-way solenoid valve (37), the c end of first three-way solenoid valve (37) links to each other with the b end of second four-way connection (42), the d end of second four-way connection (42) is connected to the c end of second three-way solenoid valve (39), pure water pond (22) be installed in second peristaltic pump on the end of the 3rd peristaltic pump tube (36) of another passage communicate, the other end of the 3rd peristaltic pump tube (36) is connected to the c end of second four-way connection (42) by first two-way electromagnetic valve (38), the other end of the 3rd peristaltic pump tube (36) also is connected to the b end and the long path liquid core sample cell (6) of second three-way solenoid valve (39) respectively, and a end of second three-way solenoid valve (39) is connected to sample mix pond (31).
7. automatic sampling apparatus according to claim 6, it is characterized in that: first peristaltic pump is made of first stepper motor (23) and single channel Wriggling Pump Head (26), wherein, the rotating shaft of the rotating shaft of first stepper motor (23) and single channel Wriggling Pump Head (26) is fixed together;
Second peristaltic pump is made of second stepper motor (24) and binary channels Wriggling Pump Head (27), and wherein, the rotating shaft of the rotating shaft of second stepper motor (24) and binary channels Wriggling Pump Head (27) is fixed together;
Syringe pump comprise the piston that is plugged in the sample mix pond (31), the piston handle (32) that is connected with piston end, injection pump head (28) and be plugged in the injection pump head (28) and the screw mandrel (29) that can reciprocatingly move and with terminal the 3rd stepper motor (25) that is connected of screw mandrel (29), screw mandrel (29) is connected with piston handle (32) and also can drives piston handle (32) and reciprocatingly move.
8. automatic sampling apparatus according to claim 7 is characterized in that: a end of second three-way solenoid valve (39) also is connected with the waste water draw-out device by second two-way electromagnetic valve (40).
9. automatic sampling apparatus according to claim 7, it is characterized in that: this auto injection control module also comprises the step motor drive module (U2) that is used to drive three stepper motors rotations, be used to drive the driver (U3) of first, second three-way solenoid valve (37,39) and first, second two-way electromagnetic valve (38,40) action, connect the processor (U1) of step motor drive module (U2) and driver (U3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010170825XA CN101825559B (en) | 2010-05-04 | 2010-05-04 | Automatic sample injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010170825XA CN101825559B (en) | 2010-05-04 | 2010-05-04 | Automatic sample injection device |
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| CN101825559A true CN101825559A (en) | 2010-09-08 |
| CN101825559B CN101825559B (en) | 2012-01-04 |
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| CN201010170825XA Active CN101825559B (en) | 2010-05-04 | 2010-05-04 | Automatic sample injection device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102564809A (en) * | 2010-12-03 | 2012-07-11 | 阿尔法韦士曼公司 | Automated aseptic liquid collection workstations and collection devices therefore |
| CN102778435A (en) * | 2012-08-03 | 2012-11-14 | 无锡创晨科技有限公司 | Heavy metal online monitoring instrument adopting proximity switch |
| CN103207099A (en) * | 2013-03-25 | 2013-07-17 | 苏州聚阳环保科技有限公司 | Stepping motor based automatic sampling system |
| CN103575924A (en) * | 2012-08-08 | 2014-02-12 | 深圳中科强华科技有限公司 | Blood sample delivery system |
| CN104297497A (en) * | 2013-07-16 | 2015-01-21 | 成都深迈瑞医疗电子技术研究院有限公司 | Blood analytic method, control device and blood cell analyzing instrument |
| US10668484B2 (en) | 2016-07-22 | 2020-06-02 | Alfa Wassermann, Inc. | Fluid handling systems and method for ultracentrifuges |
| CN111504716A (en) * | 2020-06-09 | 2020-08-07 | 浙江瀚陆海洋科技有限公司 | Ocean profile continuous water sampling device |
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| CN101082629A (en) * | 2007-07-04 | 2007-12-05 | 南京大学 | Liquid automatically quantificationally continuously sampling device |
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| JP2004286604A (en) * | 2003-03-24 | 2004-10-14 | Horiba Ltd | Spray chamber apparatus of icp analyzing equipment |
| CN101082629A (en) * | 2007-07-04 | 2007-12-05 | 南京大学 | Liquid automatically quantificationally continuously sampling device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564809A (en) * | 2010-12-03 | 2012-07-11 | 阿尔法韦士曼公司 | Automated aseptic liquid collection workstations and collection devices therefore |
| US9664597B2 (en) | 2010-12-03 | 2017-05-30 | Alfa Wassermann, Inc. | Liquid collection methods and apparatuses for detecting virus deactivation |
| CN102778435A (en) * | 2012-08-03 | 2012-11-14 | 无锡创晨科技有限公司 | Heavy metal online monitoring instrument adopting proximity switch |
| CN103575924A (en) * | 2012-08-08 | 2014-02-12 | 深圳中科强华科技有限公司 | Blood sample delivery system |
| CN103575924B (en) * | 2012-08-08 | 2015-07-01 | 深圳中科强华科技有限公司 | Blood sample delivery system |
| CN103207099A (en) * | 2013-03-25 | 2013-07-17 | 苏州聚阳环保科技有限公司 | Stepping motor based automatic sampling system |
| CN104297497A (en) * | 2013-07-16 | 2015-01-21 | 成都深迈瑞医疗电子技术研究院有限公司 | Blood analytic method, control device and blood cell analyzing instrument |
| CN104297497B (en) * | 2013-07-16 | 2016-02-24 | 成都深迈瑞医疗电子技术研究院有限公司 | Blood analysis method, control device and blood cell analyzer |
| US10668484B2 (en) | 2016-07-22 | 2020-06-02 | Alfa Wassermann, Inc. | Fluid handling systems and method for ultracentrifuges |
| CN111504716A (en) * | 2020-06-09 | 2020-08-07 | 浙江瀚陆海洋科技有限公司 | Ocean profile continuous water sampling device |
| WO2021248517A1 (en) * | 2020-06-09 | 2021-12-16 | 浙江瀚陆海洋科技有限公司 | Continuous ocean profile water sampling apparatus |
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| CN101825559B (en) | 2012-01-04 |
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