CN203908853U - Automatic online micro-sample diluting and mixing system - Google Patents

Automatic online micro-sample diluting and mixing system Download PDF

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Publication number
CN203908853U
CN203908853U CN201420335591.3U CN201420335591U CN203908853U CN 203908853 U CN203908853 U CN 203908853U CN 201420335591 U CN201420335591 U CN 201420335591U CN 203908853 U CN203908853 U CN 203908853U
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China
Prior art keywords
port
automatic
dilution
constant flow
switching
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Withdrawn - After Issue
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CN201420335591.3U
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Chinese (zh)
Inventor
曲新聪
侯倩慧
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QINGDAO PUREN INSTRUMENT CO Ltd
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QINGDAO PUREN INSTRUMENT CO Ltd
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Abstract

The utility model provides an automatic online micro-sample diluting and mixing system. The system comprises a constant flow pump, a first multiposition switch valve, a second multiposition switch valve, a mixer, a six-way valve, a quantification pipe and a sample injection pump, wherein the first multiposition switch valve comprises a first main port and two first switch ports selectively communicated with the first main port; the second multiposition switch valve comprises a second main port and four second switch ports selectively communicated with the second main port; the two ends of the quantification pipe and an inlet of the sample injection pump are connected on the six-way valve; the constant flow pump and the mixer are connected between the first main port and the second main port in sequence; one first switch port is connected with the six-way valve; the other first switch port is connected with one second switch port; a plug is arranged at the end of the other second switch port. The system achieves improvement of the universality of the automatic online micro-sample diluting and mixing system and meets the diluting and mixing requirements of automatic online samples.

Description

A kind of automatic on-line micro-example dilution commingled system
Technical field
The utility model relates to chromatographic analysis device, relates in particular to a kind of automatic on-line micro-example dilution commingled system.
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 commingled system 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 commingled system 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 commingled system, comprises constant flow pump, the first multi-position switching valve, the second multi-position switching valve, mixer, six-way valve, quantity tube and sampling pump; Described the first multi-position switching valve comprises that the first master port and two select with described the first master port the first port switching being communicated with, and 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; The two-port of described quantity tube and the import of described sampling pump are connected on described six-way valve, between described the first master port and described the second master port, be connected with constant flow pump and mixer in turn, wherein described in one, the first port switching is connected with described six-way valve, described in another 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 constant flow pump, 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 constant flow pump, 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 described sampling pump respectively with corresponding connection of described port switching of two transfer valves described in one wherein.
The automatic on-line micro-example dilution commingled system 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 in the course of the work dilution and mixes two kinds of effects, 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 commingled system embodiment mono-in sample introduction state;
Fig. 2 is the structural representation of the utility model automatic on-line micro-example dilution commingled system embodiment mono-in diluted state;
Fig. 3 is the structural representation of the utility model automatic on-line micro-example dilution commingled system embodiment mono-in admixture;
Fig. 4 is the structural representation of the utility model automatic on-line micro-example dilution commingled system embodiment bis-;
Fig. 5 is the structural representation of mixer in the utility model automatic on-line micro-example dilution commingled system.
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 commingled system, comprises constant flow pump 1, the first multi-position switching valve 2, the second multi-position switching valve 3, mixer 4, six-way valve 8, quantity tube 5 and sampling pump 7; The first multi-position switching valve comprises that the first port switching 22,23, the second multi-position switching valves 3 that the first master port 21 and two and the first master port 21 are selected to be communicated with comprise that the second master port 31 and four select with the second master port 31 the second port switching 32,33,34,35 being communicated with; The import of the two-port of quantity tube 5 and sampling pump 7 is connected on six-way valve 8, between the first master port 21 and the second master port 31, be connected with constant flow pump 1 and mixer 4 in turn, wherein one first port switching 22 is connected with six-way valve 8, another first port switching 23 is connected with one second port switching 35 wherein, and another second port switching 33 is provided with plug 331.
Particularly, the present embodiment automatic on-line micro-example dilution commingled system can effectively be carried 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, while carrying out sample introduction by sampling pump 7, as shown in Figure 1, six-way valve 8 is communicated with sample, quantity tube 5 and sampling pump 7 streams, in quantity tube 5, will fill sample.And adopt constant flow pump 1 to extract sample in quantity tube 5 and outside dilution, and 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 two kinds of functions: dilution and mixing.Concrete, first, as shown in Figure 2, six-way valve 8 is communicated with dilution, quantity tube 5 and the first multi-position switching valve 2 streams, 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, 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; Then, as shown in Figure 3, the first master port 21 and being communicated with the first port switching 23, the second master port 31 is communicated with the second port switching 35, between constant flow pump 1 and mixer 4, form circulation stream, constant flow pump 1 moves to drive mixed liquor to circulate, and mixed liquor, circulating in process, makes sample fully mix with dilution.When the present embodiment automatic on-line micro-example dilution commingled system 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 outlet of sampling pump 7 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 commingled system, 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 in the course of the work dilution and mixes two kinds of effects, 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 commingled system is based on above-described embodiment one, difference is: as shown in Figure 5, mixer 4 comprises mixing tube 41, is provided with inlet 42 and liquid outlet 43 on mixing tube 41, inlet 42 is connected with constant flow pump 1, 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 commingled system is based on above-described embodiment one, and difference is: mixer comprises flexible pouch, is provided with inlet and liquid outlet in flexible pouch, and inlet is connected with constant flow pump 1, 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 commingled system 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 sampling pump 7 respectively with corresponding connection of port switching of one or two transfer valve 82 wherein.
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 commingled system, is characterized in that, comprises constant flow pump, the first multi-position switching valve, the second multi-position switching valve, mixer, six-way valve, quantity tube and sampling pump; Described the first multi-position switching valve comprises that the first master port and two select with described the first master port the first port switching being communicated with, and 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; The two-port of described quantity tube and the import of described sampling pump are connected on described six-way valve, between described the first master port and described the second master port, be connected with constant flow pump and mixer in turn, wherein described in one, the first port switching is connected with described six-way valve, described in another 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 commingled system according to claim 1, it is characterized in that, described mixer comprises mixing tube, is provided with inlet and liquid outlet on described mixing tube, described inlet is connected with described constant flow pump, and described liquid outlet is connected with described the second master port.
3. automatic on-line micro-example dilution commingled system 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 commingled system according to claim 1, it is characterized in that, described mixer comprises flexible pouch, is provided with inlet and liquid outlet in described flexible pouch, described inlet is connected with described constant flow pump, and described liquid outlet is connected with described the second master port.
5. according to the automatic on-line micro-example dilution commingled system 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 commingled system 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 commingled system 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 described sampling pump respectively with corresponding connection of described port switching of two transfer valves described in one wherein.
CN201420335591.3U 2014-06-23 2014-06-23 Automatic online micro-sample diluting and mixing system Withdrawn - After Issue CN203908853U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104062168A (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 system and mixing method
CN110354580A (en) * 2019-07-28 2019-10-22 高云芝 A method of filtering on-line conversion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104062168A (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 system and mixing method
CN110354580A (en) * 2019-07-28 2019-10-22 高云芝 A method of filtering on-line conversion

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Granted publication date: 20141029

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C25 Abandonment of patent right or utility model to avoid double patenting