CN102692519A - Multipath liquid sampler - Google Patents
Multipath liquid sampler Download PDFInfo
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- CN102692519A CN102692519A CN201110072062XA CN201110072062A CN102692519A CN 102692519 A CN102692519 A CN 102692519A CN 201110072062X A CN201110072062X A CN 201110072062XA CN 201110072062 A CN201110072062 A CN 201110072062A CN 102692519 A CN102692519 A CN 102692519A
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- liquid
- multipath
- electromagnetic valve
- axostylus axostyle
- solution
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Abstract
The invention discloses a multipath liquid sampler and belongs to the technical field of chemical analysis and quantitative analysis. The multipath liquid sampler can be used for realizing automation of a liquid addition system of an instrument, or automatic quantitative addition of various test solutions in an analysis test. The multipath liquid sampler is characterized in that the multipath liquid sampler can be controlled by a microcomputer; a motor drives a shaft rod to move up and down; a lower end of the shaft rod is provided with a piston; the piston is in a slip fit relationship with an air exhaust cylinder; when the shaft rod moves up, liquid inlet solenoid valves for taken solutions are opened so that the taken solutions orderly pass through the liquid inlet solenoid valves and a multipath block under the action of ambient pressure and then enter into a quantitative tube; and when the shaft rod moves down, the liquid inlet solenoid valves are closed and a liquid outlet solenoid valve is opened so that the taken solution passes through the liquid outlet solenoid valve from a liquid outlet and then is poured into an appointed container and thus solution sampling is finished. The multipath block of the multipath liquid sampler can be communicated with the multiple liquid inlet solenoid valves so that respective taking of a plurality of solutions is realized. The multipath liquid sampler has a simple structure and good stability and can be widely used for an automatic liquid addition system of an instrument and analysis tests.
Description
Technical field
The present invention relates to a kind of multichannel fluid sampling device, belong to the technical field of chemical analysis and quantitative test.
Background technology
The multichannel fluid sampling device is a kind of automatic, contactless, device that can quantitatively pipette various liquid respectively, is used for realizing that instrument and meter adds that automatic ration adds various test solutions in robotization or the analytical test of liquid systems.In the chemical analysis of routine, pipette solution and normally manually pipette, waste time and energy, also possibly cause measuring error, influence is monitoring in real time.Along with the quickening of industrial or agricultural modernization paces, the accuracy of analyzing test data, ageing increasingly high, the traditional hand test can not be satisfied present needs, and this just needs a kind of multichannel fluid sampling device that can adapt to the modern chemical analysis requirement.
Summary of the invention
The objective of the invention is to develop a kind of simple in structure, good stability, can pipette the sampler of multiple solution automatically; Can be widely used in adding liquid systems automatically in the analytical instrument; Solve the subject matter that prior art exists; Reduce labor intensity the accuracy of raising analyzing test data and ageing, the on-line monitoring of realization analytical instrument instrument.
Method principle of the present invention:
Motor drives axostylus axostyle and does motion up or down under the control of single-chip microcomputer, when axostylus axostyle moves upward, the pressure in the pump bowl is reduced, and opens the liquid inlet electromagnetic valve (closing other all solenoid valve simultaneously) of the correspondence of the solution of getting; Ambient pressure is pressing this solution successively through its liquid inlet electromagnetic valve, how logical piece enters into quantity tube, and when reaching volume required, liquid level detector sends signal and gives motor; Let motor stop action, make axostylus axostyle stop upwards operation, close liquid inlet electromagnetic valve; Open liquid outlet electromagnetic valve, simultaneously, the driven by motor axostylus axostyle moves downwards; The solution that extracts is injected in the container of appointment, accomplishes the sampling task of first kind of solution, when second kind of needs extraction or the third solution; As long as open corresponding liquid inlet electromagnetic valve, repeat above-mentioned steps and get final product, realized the sampling work of multiple solution.
Technical parameter of the present invention:
The solution amount that this multichannel fluid sampling device is extracted is decided by the size of pump bowl capacity and quantity tube capacity; At extraction speed 5 ~ 10ml/min, the bore at dress liquid level detector position reaches 0.05ml through detecting its accuracy on the quantity tube when 3 ~ 8mm; The stream bore dia of liquid is at 1 ~ 3mm in many logical pieces; The serviceable life of pump bowl and piston is greater than 10,000 times.
Multichannel fluid sampling device of the present invention comprises:
Motor, axostylus axostyle, piston, pump bowl, web member, quantity tube, liquid level detector, how logical piece, liquid inlet electromagnetic valve, liquid outlet electromagnetic valve.That motor adopts is through, fixedly shaft type or external drive formula linear electric motors, and about 50 pounds thrust can be provided; Axostylus axostyle adopts metal or rigid plastic; Piston adopts the plastics corrosion-resistant, that friction factor is less, and the internal diameter cunning of the size of its diameter and pump bowl is joined; Pump bowl is processed by hard glass or plastics, and its volume size is decided according to the sampling amount of maximum; Web member adopts corrosion resistant plastics; Quantity tube adopts the transparent horminess glass tube of internal diameter greater than 3mm; Liquid level detector can adopt infrared or capacitance principle; Many logical pieces adopt corrosion resistant plastics, and middle liquid flow path diameter is at 1 ~ 3mm, and there is liquid pumping hole the upper end, and there is liquid outlet the lower end, and there are a plurality of inlets in right ends or front; Liquid inlet electromagnetic valve, liquid outlet electromagnetic valve all adopt corrosion resistant miniature electromagnetic valve.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, motor 2, axostylus axostyle 3, piston 4, pump bowl 5,8, web member 6 quantity tubes 7, detector of liquid 9, how logical piece 10, how logical piece upper end liquid pumping hole 11,12, how logical piece inlet 15,16, liquid inlet electromagnetic valve 18, liquid outlet electromagnetic valve 19, liquid outlet 20,21, taken out solution.
Embodiment
According to shown in Figure 1; A kind of multichannel fluid sampling device, it comprises: motor (1), axostylus axostyle (2), piston (3), pump bowl (4), web member (5) (8), quantity tube (6), liquid level detector (7), how logical piece (9), liquid inlet electromagnetic valve (15) (16), liquid outlet electromagnetic valve (18).Motor is connected with axostylus axostyle, and under control of microcomputer, the driven by motor axostylus axostyle moves up and down; Piston is equipped with in the lower end of axostylus axostyle; Join with the pump bowl cunning, the lower end of pump bowl is connected through web member (5) with the upper end of quantity tube, and how logical piece is below quantity tube; Its upper end liquid pumping hole (10) is connected through web member (8) with the lower end of quantity tube; Inlet (11) (12) links to each other with liquid inlet electromagnetic valve (15), (16) respectively, and liquid outlet (19) links to each other with liquid outlet electromagnetic valve (18), and the other end of liquid inlet electromagnetic valve is taken out solution (20) with quilt, (21) link to each other.When axostylus axostyle moved upward, the pressure in the pump bowl reduced, and opens the liquid inlet electromagnetic valve of being got solution; Ambient pressure is pressing this solution successively through the feed liquor battery valve, how logical piece enters into quantity tube, and the size of solution amount is controlled by liquid level detector, when axostylus axostyle moves downward; Close the feed liquor battery valve, open the fluid battery valve, the solution of drawing from liquid outlet; Be injected in the container of appointment through liquid outlet electromagnetic valve, accomplish a kind of sampling process of solution.
Advantage of the present invention and good effect are: realized the automatic sampling of multiple solution, improved analytical test speed, can apply to add liquid systems automatically in the analytical test instrument, realized online detection.
1, moving up and down of axostylus axostyle driven by Electric Machine Control, realized the robotization of sampling.
2, with the liquid level in the liquid level detector control quantity tube, realize by the accurate quantification of drawing liquid body.
3, only entered into quantity tube by the drawing liquid body, do not enter into pump bowl, prevented the corrosion of liquid, prolonged its serviceable life, realized the non-contact type sampling pump bowl.
4, on the how logical piece a plurality of inlets and liquid inlet electromagnetic valve are arranged, realized the sampling respectively of various liquid.
After multichannel fluid sampling device of the present invention applies to the analyzing and testing instrument; Be specially adapted to the continuous on-line monitoring in environmental protection, oil, the chemical industry; Improved the real-time of work efficiency and analyzing test data, to improving the quality of products and Sensitivity of Analytical Method, accuracy have very important and practical meanings and social effect.
Claims (6)
1. multichannel fluid sampling device; It comprises motor (1), axostylus axostyle (2), piston (3), pump bowl (4), web member (5) (8), quantity tube (6), liquid level detector (7), leads to piece (9), liquid inlet electromagnetic valve (15) (16), liquid outlet electromagnetic valve (18) more; It is characterized in that: the liquid pumping hole (10) that leads to piece (9) is connected through web member (8) with the lower end of quantity tube more; Inlet (11), (12) of many logical pieces (9) are connected with liquid inlet electromagnetic valve (15), (16) respectively, and solution (20) or (21) are inhaled in the quantity tube (6) in the motion process that axostylus axostyle (2) makes progress; When reaching volume required; Liquid level detector (7) sends signal and gives motor (1), and axostylus axostyle (2) stops upwards operation, and operation downwards; Close liquid inlet electromagnetic valve simultaneously; Open the liquid outlet electromagnetic valve (18) that links to each other with the liquid outlet (19) of many logical pieces, the solution of drawing is injected in the container of appointment, realize non-contact automatic sampling.
2. multichannel fluid sampling device according to claim 1; It is characterized in that piston set is contained in the lower end of axostylus axostyle; And be placed on composition automatic gas extraction device in the pump bowl, and the lower end of pump bowl is connected through web member (5) with the upper end of quantity tube, and the size of piston and pump bowl internal diameter cunning are joined.
3. multichannel fluid sampling device according to claim 1 is characterized in that there is liquid pumping hole (10) upper end of many logical pieces (9), and left end has inlet (12), and right-hand member has inlet (11), and there is liquid outlet (19) lower end.
4. according to claim 1 or 2 or 3 described multichannel fluid sampling devices, it is characterized in that many logical pieces (9) can also contain more inlet (greater than 2), thereby realize the automatic sampling of multichannel solution (greater than 2 tunnel).
5. multichannel fluid sampling device according to claim 1 is characterized in that on the quantity tube (6) a plurality of liquid level detectors being housed, and realizes the solution sampling of different volumes.
6. multichannel fluid sampling device according to claim 1 is characterized in that moving up and down of axostylus axostyle (2) driven by motor (1), realized robotization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110072062.XA CN102692519B (en) | 2011-03-24 | 2011-03-24 | Multipath liquid sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110072062.XA CN102692519B (en) | 2011-03-24 | 2011-03-24 | Multipath liquid sampler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102692519A true CN102692519A (en) | 2012-09-26 |
| CN102692519B CN102692519B (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201110072062.XA Expired - Fee Related CN102692519B (en) | 2011-03-24 | 2011-03-24 | Multipath liquid sampler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374606A (en) * | 2014-10-30 | 2015-02-25 | 中国船舶工业系统工程研究院 | Jet fuel filter separator integrated sampling device for ship |
| CN106198108A (en) * | 2016-07-20 | 2016-12-07 | 国网山东省电力公司烟台市福山区供电公司 | The method for quantitatively determining of active sulfur and special purpose device in a kind of insulating oil |
| CN107271220A (en) * | 2017-08-17 | 2017-10-20 | 宁夏软件工程院有限公司 | A kind of on-line checking machine quantitative liquid taking device |
Citations (7)
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| EP0259257A2 (en) * | 1986-08-28 | 1988-03-09 | Ciba-Geigy Ag | Process for preparation of samples for analysis |
| US20020086340A1 (en) * | 1996-08-02 | 2002-07-04 | Pandi Veerapandian | Cell flow apparatus and method for real-time measurements of patient cellular responses |
| JP2007504837A (en) * | 2003-05-07 | 2007-03-08 | ノバサイト ファーマシューティカルズ， インコーポレイテッド | Multiple multi-target screening method |
| CN201304338Y (en) * | 2008-11-27 | 2009-09-09 | 上海精密科学仪器有限公司 | Quantitative sampling device |
| CN201607352U (en) * | 2010-02-02 | 2010-10-13 | 泰州科瑞特分析仪器有限公司 | Quantitative sampling device for liquid |
| CN201628636U (en) * | 2009-09-02 | 2010-11-10 | 广州市怡文环境科技股份有限公司 | Accurate liquid extracting and metering device |
| CN202177632U (en) * | 2011-03-24 | 2012-03-28 | 江苏江分电分析仪器有限公司 | Multi-way liquid sampling device |
-
2011
- 2011-03-24 CN CN201110072062.XA patent/CN102692519B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0259257A2 (en) * | 1986-08-28 | 1988-03-09 | Ciba-Geigy Ag | Process for preparation of samples for analysis |
| US20020086340A1 (en) * | 1996-08-02 | 2002-07-04 | Pandi Veerapandian | Cell flow apparatus and method for real-time measurements of patient cellular responses |
| JP2007504837A (en) * | 2003-05-07 | 2007-03-08 | ノバサイト ファーマシューティカルズ， インコーポレイテッド | Multiple multi-target screening method |
| CN201304338Y (en) * | 2008-11-27 | 2009-09-09 | 上海精密科学仪器有限公司 | Quantitative sampling device |
| CN201628636U (en) * | 2009-09-02 | 2010-11-10 | 广州市怡文环境科技股份有限公司 | Accurate liquid extracting and metering device |
| CN201607352U (en) * | 2010-02-02 | 2010-10-13 | 泰州科瑞特分析仪器有限公司 | Quantitative sampling device for liquid |
| CN202177632U (en) * | 2011-03-24 | 2012-03-28 | 江苏江分电分析仪器有限公司 | Multi-way liquid sampling device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374606A (en) * | 2014-10-30 | 2015-02-25 | 中国船舶工业系统工程研究院 | Jet fuel filter separator integrated sampling device for ship |
| CN106198108A (en) * | 2016-07-20 | 2016-12-07 | 国网山东省电力公司烟台市福山区供电公司 | The method for quantitatively determining of active sulfur and special purpose device in a kind of insulating oil |
| CN106198108B (en) * | 2016-07-20 | 2019-01-18 | 国网山东省电力公司烟台市福山区供电公司 | The method for quantitatively determining and dedicated unit of active sulfur in a kind of insulating oil |
| CN107271220A (en) * | 2017-08-17 | 2017-10-20 | 宁夏软件工程院有限公司 | A kind of on-line checking machine quantitative liquid taking device |
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| Publication number | Publication date |
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| CN102692519B (en) | 2015-04-15 |
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