CN203908856U - Automatic online micro sample diluting and mixing device - Google Patents
Automatic online micro sample diluting and mixing device Download PDFInfo
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- CN203908856U CN203908856U CN201420335731.7U CN201420335731U CN203908856U CN 203908856 U CN203908856 U CN 203908856U CN 201420335731 U CN201420335731 U CN 201420335731U CN 203908856 U CN203908856 U CN 203908856U
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- 238000007865 diluting Methods 0.000 title abstract 4
- 239000012895 dilution Substances 0.000 claims description 60
- 238000010790 dilution Methods 0.000 claims description 60
- 239000007788 liquid Substances 0.000 claims description 19
- 239000012528 membrane Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000011002 quantification Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 230000005587 bubbling Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004587 chromatography analysis Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000012898 sample dilution Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- -1 but Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
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Abstract
The utility model provides an automatic online micro sample diluting and mixing device. The device comprises a constant flow pump, a first multiposition switch valve, a second multiposition switch valve, a third multiposition switch valve, a mixer, a six-way valve and a quantification pipe, wherein the first multiposition switch valve comprises a first main port and three first switch ports; the second multiposition switch valve comprises a second main port and four second switch ports; the third multiposition switch valve comprises a third main port and two third switch ports; the quantification pipe and two first switch ports are respectively connected on the six-way valve; the constant flow pump is connected between the first main port and the third main port; the mixer is connected between one third switch port and the second main port; the remaining first switch port is connected with one second switch port; a plug is arranged at the other second switch port. The device achieves improvement of the universality of the automatic online micro sample diluting and mixing device and meets the diluting and mixing requirements of automatic online samples.
Description
Technical field
The utility model relates to chromatographic analysis device, relates in particular to a kind of automatic on-line micro-example dilution mixing device.
Background technology
Chromatograph application chromatography is carried out qualitative and quantitative analysis to material, and studies the physics of material, the instrument of chemical characteristic.Chromatograph in use, generally need to first inject quantitative sample, and then injects dilution according to extension rate sample is diluted.Generally, after sample mixes with dilution, need to mix processing, in prior art, conventionally adopt following two kinds of modes: mode one, in the mode stirring, sample and dilution be mixed; The mode of mode two, employing bubbling mixes sample and dilution.Above-mentioned two kinds of modes all can mix fully to heavy dose of sample and dilution, but, dilution for automatic on-line micro-example mixes, the concentration of component is in ppb ~ ppm level, its sample size is only between 10 ~ 200 μ L, for example, due to seldom (: 300 times of the Sample Dilutions of 10 μ L) of the dosage of collected specimens, self volume of its corresponding mixer is just very little.For mode one, due to the small volume of mixer, have no idea to stir in mixer at all; And for mode two, the restriction bubbling effect that is subject on the one hand mixer space is poor, on the other hand, the contained pollutant of air that bubbling uses will affect the measuring accuracy of sample.As from the foregoing, mixer of the prior art cannot meet the dilution mixing requirement of automatic on-line sample.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of automatic on-line micro-example dilution mixing device is provided, in solution prior art, mixer cannot meet the defect of the dilution mixing requirement of automatic on-line sample, realize the dilution mixing requirement that automatic on-line micro-example dilution mixing device meets automatic on-line sample, improve mixing uniformity.
The technical scheme that the utility model provides is that a kind of automatic on-line micro-example dilution mixing device, comprises constant flow pump, the first multi-position switching valve, the second multi-position switching valve, the 3rd multi-position switching valve, mixer, six-way valve and quantity tube; Described the first multi-position switching valve comprises that the first master port and three select with described the first master port the first port switching being communicated with, described the second multi-position switching valve comprises that the second master port and four select with described the second master port the second port switching being communicated with, and described the 3rd multi-position switching valve comprises that the 3rd master port and two select with described the 3rd master port the 3rd port switching being communicated with; The two-port of described quantity tube and two described the first port switchings are connected on described six-way valve, between described the first master port and described the 3rd master port, be connected with constant flow pump, wherein described in one, between the 3rd port switching and described the second master port, be connected with described mixer, residue one described in the first port switching with wherein described in one the second port switching be connected, described in another, the second port switching is provided with plug.
Further, described mixer comprises mixing tube, is provided with inlet and liquid outlet on described mixing tube, and described inlet is connected with described the 3rd multi-position switching valve, and described liquid outlet is connected with described the second master port.
Further, on described mixing tube, be also provided with air inlet/outlet, on described air inlet/outlet, be provided with waterproof ventilated membrane.
Further, described mixer comprises flexible pouch, is provided with inlet and liquid outlet in described flexible pouch, and described inlet is connected with described the 3rd multi-position switching valve, and described liquid outlet is connected with described the second master port.
Further, described plug seals up the second port switching described in another.
Further, described plug is also provided with air inlet/outlet, on described air inlet/outlet, is provided with waterproof ventilated membrane.
Further, described six-way valve is six-way injection valve; Or, described six-way valve comprises two two transfer valves, described two transfer valves comprise that master port and two select with described master port the port switching being communicated with, described quantity tube is connected between two described master ports, described the first multi-position switching valve and the wherein corresponding connection of the described port switching of two transfer valves described in.
The automatic on-line micro-example dilution mixing device that the utility model provides, by adopting quantity tube quantitatively to measure micro-sample, because the volume of quantity tube is fixed, can high precision measure accurately micro-sample, mix and adopt constant flow pump to dilute, constant flow pump plays sample introduction in the course of the work, dilution and three kinds of effects of mixing, constant flow pump is by setting its working time and flow, can set accurately the dilution of multiple to sample, and in the time mixing, drive the mixed liquor of sample and dilution to circulate between mixer and constant flow pump by constant flow pump, can make sample and dilution mix fully, and, in mixed process, can not exert an influence to the content of material of mixed liquor itself, can effectively meet the requirement that low dose of sample mixes in the mixer of small volume, realize the dilution mixing requirement that online micro-example dilution commingled system meets automatic on-line sample, improve mixing uniformity.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the utility model automatic on-line micro-example dilution mixing device embodiment mono-in sample introduction state;
Fig. 2 is the structural representation of the utility model automatic on-line micro-example dilution mixing device embodiment mono-in diluted state;
Fig. 3 is the structural representation of the utility model automatic on-line micro-example dilution mixing device embodiment mono-in admixture;
Fig. 4 is the structural representation of the utility model automatic on-line micro-example dilution mixing device embodiment bis-;
Fig. 5 is the structural representation of mixer in the utility model automatic on-line micro-example dilution mixing device.
Embodiment
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment mono-
As shown in Figure 1, the present embodiment automatic on-line micro-example dilution mixing device, comprises constant flow pump 1, the first multi-position switching valve 2, the second multi-position switching valve 3, the 3rd multi-position switching valve 7, mixer 4, six-way valve 8, quantity tube 5 and constant flow pump 1; The first multi-position switching valve comprises that the first master port 21 and three select with the first master port 21 the first port switching 22,23,24 being communicated with, the second multi-position switching valve 3 comprises that the second port switching 32,33,34,35, the three multi-position switching valves 7 that the second master port 31 and four and the second master port 31 are selected to be communicated with comprise that the 3rd master port 71 and two select with the 3rd master port 71 the 3rd port switching 72,73 being communicated with; Two-port constant flow pump 1, the first port switching 22 and first port switching 23 of quantity tube 5 are connected on six-way valve 8, between the first master port 21 and the 3rd master port 71, be connected with constant flow pump 1 in turn, wherein between one the 3rd port switching 72 and the second master port 31, be connected with mixer 4, remain the first port switching 24 and be connected with one second port switching 35 wherein, another second port switching 33 is provided with plug 331.
Particularly, the present embodiment automatic on-line micro-example dilution mixing device can effectively carry out the sample introduction of micro-example, the quantity tube 5 connecting on six-way valve 8 can be designed to set micro-volume as required, and adopt constant flow pump 1 to extract sample in quantity tube 5 and outside dilution, by setting working time and the flow of constant flow pump 1, the multiple that can accurately Sample Dilution be set, thus realize high-precision fluid transport.Constant flow pump 1 in the present embodiment has three kinds of functions: sample introduction, dilution and mixing.Concrete, first, as shown in Figure 1, six-way valve 8 is communicated with the first port switching 23 of sample, quantity tube 5 and the first multi-position switching valve 2, the first master port 21 is connected with the first port switching 23, and the 3rd master port 71 is connected with the 3rd port switching 73, and constant flow pump 1 starts, in quantity tube 5, will fill sample, complete sample introduction operation; Then, as shown in Figure 2, six-way valve 8 is communicated with the first port switching 22 of dilution, quantity tube 5 and the first multi-position switching valve 2, the first master port 21 and being communicated with the first port switching 22, the second master port 31 is connected with the second port switching 33 that is connected with plug 331, the 3rd master port 71 is connected with the 3rd port switching 72, and constant flow pump 1 can extract sample and the dilution in quantity tube 5 by the first port switching 22, and the mixed liquor of sample and dilution is transported in mixer 4; Finally, as shown in Figure 3, the first master port 21 and being communicated with the first port switching 24, the second master port 31 is communicated with the second port switching 35, the 3rd master port 71 is connected with the 3rd port switching 72, between constant flow pump 1 and mixer 4, forms circulation stream, and constant flow pump 1 moves to drive mixed liquor to circulate, mixed liquor, circulating in process, makes sample fully mix with dilution.When the present embodiment automatic on-line micro-example dilution mixing device can meet common sample introduction dilution mixing, can also well meet the dilution mixing requirement of automatic on-line micro-example.
In addition, after the sample in mixer 4 and dilution mix, the second master port 31 is selected to be communicated with the second port switching 32, and constant flow pump 1 just can be transported to the mixed liquor mixing in analytical instrument.Simultaneously, constant flow pump 1 can also enter into mixer 4 in the identical mode of above-mentioned mixed process by cleaning fluid and clean, after mixer 4 cleans up, the second master port 31 selects to be communicated with the second port switching 34, on the 3rd port switching 34, be connected with waste liquid barrel 6, the cleaning fluid in mixer 4 flow in waste liquid barrel 6 automatically.Meanwhile, the 3rd port switching is also connected with waste liquid barrel 6, and in the time of sample introduction, too much sample enters into waste liquid barrel 6.
The present embodiment automatic on-line micro-example dilution mixing device, by adopting quantity tube quantitatively to measure micro-sample, because the volume of quantity tube is fixed, can high precision measure accurately micro-sample, mix and adopt constant flow pump to dilute, constant flow pump plays sample introduction in the course of the work, dilution and three kinds of effects of mixing, constant flow pump is by setting its working time and flow, can set accurately the dilution of multiple to sample, and in the time mixing, drive the mixed liquor of sample and dilution to circulate between mixer and constant flow pump by constant flow pump, can make sample and dilution mix fully, and, in mixed process, can not exert an influence to the content of material of mixed liquor itself, can effectively meet the requirement that low dose of sample mixes in the mixer of small volume, realize the dilution mixing requirement that online micro-example dilution commingled system meets automatic on-line sample, improve mixing uniformity.
Embodiment bis-
The present embodiment automatic on-line micro-example dilution mixing device is based on above-described embodiment one, difference is: as shown in Figure 4, mixer 4 comprises mixing tube 41, on mixing tube 41, be provided with inlet 42 and liquid outlet 43, inlet 42 is connected with the 3rd multi-position switching valve 7, and liquid outlet 43 is connected with the second master port 31.Concrete, mixer 4 is mainly made up of mixing tube 41, constant flow pump 1 is injected into dilution in mixing tube 41, and in dilution, for mixing material being injected in mixing tube 41 of making that constant flow pump 1 can be happy, plug 331 is also provided with air inlet/outlet (not shown), on described air inlet/outlet, be provided with waterproof ventilated membrane (not shown), dilution is injected in the process of mixing tube 41 at constant flow pump 1, air in mixing tube 41 is discharged through the air inlet/outlet of plug 331, and owing to being provided with waterproof ventilated membrane, can avoid leak of liquid in mixing tube 41 to outside.Preferably, on mixing tube 41, be also provided with air inlet/outlet (not shown), on air inlet/outlet, be provided with waterproof ventilated membrane 44.Concrete, waterproof ventilated membrane 44 has the function of ventilative and waterproof, because the liquid outlet 43 of mixing tube 41 is connected with second port switching 33 with plug 331 by the second master port 31, plug 331 now seals up the second port switching 33 completely, make the second port switching 33 airtight also waterproof, at constant flow pump 1, sample and dilution are transported in the process of mixing tube 41, pressure in waterproof ventilated membrane 44 energy balance mixing tubes 41, to guarantee that constant flow pump 1 moves smoothly, simultaneously, waterproof ventilated membrane 44 can effectively filter and enter into the contained pollutant of mixing tube 41 gases, guarantee the measuring accuracy of sample.
Embodiment tri-
The present embodiment automatic on-line micro-example dilution mixing device is based on above-described embodiment one, difference is: mixer comprises flexible pouch, in flexible pouch, be provided with inlet and liquid outlet, inlet is connected with the 3rd multi-position switching valve 7, and liquid outlet is connected with the second master port 31.Concrete, mixer adopts the mode of flexible pouch, due to flexible pouch deformable, thereby the variation that can adapt to according to the number of flexible pouch internal mix liquid, at constant flow pump 1, sample and dilution are transported in the process of mixing tube 41 guaranteeing, constant flow pump 1 can move smoothly, and plug 331 now seals up the second port switching 33 completely, makes the second port switching 33 airtight also waterproof.In addition, because flexible pouch is hermetically sealed, do not have the impact of environmental contaminants, guarantee the measuring accuracy of sample.
Embodiment tetra-
The present embodiment automatic on-line micro-example dilution mixing device is based on above-described embodiment one, and difference is: as shown in Figure 4, six-way valve 8 is six-way injection valve.Or as shown in Figure 1, six-way valve 8 comprises that 81,82, two transfer valves 81,82 of two two transfer valves comprise that master port (not shown) and two select with master port the port switching (not shown) being communicated with, quantity tube 5 is connected between two master ports; The first multi-position switching valve 2 and the wherein corresponding connection of port switching of one or two transfer valve 82.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the each embodiment technical scheme of the utility model.
Claims (7)
1. an automatic on-line micro-example dilution mixing device, is characterized in that, comprises constant flow pump, the first multi-position switching valve, the second multi-position switching valve, the 3rd multi-position switching valve, mixer, six-way valve and quantity tube; Described the first multi-position switching valve comprises that the first master port and three select with described the first master port the first port switching being communicated with, described the second multi-position switching valve comprises that the second master port and four select with described the second master port the second port switching being communicated with, and described the 3rd multi-position switching valve comprises that the 3rd master port and two select with described the 3rd master port the 3rd port switching being communicated with; The two-port of described quantity tube and two described the first port switchings are connected on described six-way valve, between described the first master port and described the 3rd master port, be connected with constant flow pump, wherein described in one, between the 3rd port switching and described the second master port, be connected with described mixer, residue one described in the first port switching with wherein described in one the second port switching be connected, described in another, the second port switching is provided with plug.
2. automatic on-line micro-example dilution mixing device according to claim 1, it is characterized in that, described mixer comprises mixing tube, on described mixing tube, be provided with inlet and liquid outlet, described inlet is connected with described the 3rd multi-position switching valve, and described liquid outlet is connected with described the second master port.
3. automatic on-line micro-example dilution mixing device according to claim 2, is characterized in that, is also provided with air inlet/outlet on described mixing tube, on described air inlet/outlet, is provided with waterproof ventilated membrane.
4. automatic on-line micro-example dilution mixing device according to claim 1, it is characterized in that, described mixer comprises flexible pouch, in described flexible pouch, be provided with inlet and liquid outlet, described inlet is connected with described the 3rd multi-position switching valve, and described liquid outlet is connected with described the second master port.
5. according to the automatic on-line micro-example dilution mixing device described in claim 3 or 4, it is characterized in that, described plug seals up the second port switching described in another.
6. automatic on-line micro-example dilution mixing device according to claim 2, is characterized in that, described plug is also provided with air inlet/outlet, on described air inlet/outlet, is provided with waterproof ventilated membrane.
7. automatic on-line micro-example dilution mixing device according to claim 1, is characterized in that, described six-way valve is six-way injection valve; Or, described six-way valve comprises two two transfer valves, described two transfer valves comprise that master port and two select with described master port the port switching being communicated with, described quantity tube is connected between two described master ports, described the first multi-position switching valve and the wherein corresponding connection of the described port switching of two transfer valves described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420335731.7U CN203908856U (en) | 2014-06-23 | 2014-06-23 | Automatic online micro sample diluting and mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420335731.7U CN203908856U (en) | 2014-06-23 | 2014-06-23 | Automatic online micro sample diluting and mixing device |
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| CN203908856U true CN203908856U (en) | 2014-10-29 |
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| CN201420335731.7U Expired - Lifetime CN203908856U (en) | 2014-06-23 | 2014-06-23 | Automatic online micro sample diluting and mixing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062169A (en) * | 2014-06-23 | 2014-09-24 | 青岛普仁仪器有限公司 | Automatic online micro-scale sample dilution and mixing device and mixing method |
-
2014
- 2014-06-23 CN CN201420335731.7U patent/CN203908856U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062169A (en) * | 2014-06-23 | 2014-09-24 | 青岛普仁仪器有限公司 | Automatic online micro-scale sample dilution and mixing device and mixing method |
| CN104062169B (en) * | 2014-06-23 | 2017-03-15 | 青岛普仁仪器有限公司 | A kind of automatic on-line micro-example dilution mixing device and mixed method |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20141029 |