CN109541094A - A kind of selector valve and liquid-chromatography apparatus - Google Patents
A kind of selector valve and liquid-chromatography apparatus Download PDFInfo
- Publication number
- CN109541094A CN109541094A CN201811510703.3A CN201811510703A CN109541094A CN 109541094 A CN109541094 A CN 109541094A CN 201811510703 A CN201811510703 A CN 201811510703A CN 109541094 A CN109541094 A CN 109541094A
- Authority
- CN
- China
- Prior art keywords
- groove body
- stream
- hole
- rotor
- flow path
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/20—Injection using a sampling valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
- F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/20—Injection using a sampling valve
- G01N2030/201—Injection using a sampling valve multiport valves, i.e. having more than two ports
Abstract
The invention discloses a kind of selector valves, comprising: stator is provided with centre bore on axle center, and circumferentially there are five stream holes for setting around centre bore；Rotor and stator Fluid Sealing, can relative stator rotation, rotor is provided with the first groove body towards stator on one side, second groove body and third groove body, one end of first groove body extends to the axle center of rotor, the other end can be connected to any stream hole, second groove body and third groove body can connect two adjacent stream holes of any serial number, one end distance second groove body of first groove body far from centre bore is equal to the spacing of two adjacent stream holes of serial number close to the length of first groove body one end, second groove body and the gap length of third groove body end adjacent to each other are equal to the spacing of two adjacent stream holes of serial number, the switching of flow path may be implemented in the application, when chromatographic column is contributed to suitable stream hole, the switching of chromatographic column bypass and flow path state may be implemented.
Description
Technical field
The present invention relates to valve body fields, and in particular to one kind selects valve and liquid-chromatography apparatus.
Background technique
High performance liquid chromatograph device is affine using distribution coefficient, the adsorption capacity of various substances to be separated in two-phase etc.
The difference of ability is come the instrument that utilizes after being separated ultraviolet equal detectors to be detected.High performance liquid chromatography in application,
Be frequently necessary to using high flow rate rinse-system but cannot pass through chromatographic column, or need back flush chromatographic column to chromatographic column into
Row activation, it is often necessary to chromatographic column be removed, pipeline is reconnected.It is inconvenient for operation, and because pipeline often dismounts, hold
Chromatographic column easy to damage and other connection attachmentes.
Selector valve is often used in liquid chromatogram, but cannot realize color by individual selector valve in the prior art
The function that spectrum column is switched in bypass and flow path, it usually needs multiple selector valves, which carry out in parallel or crossfire, can just make chromatography
The problem of column is switched in bypass and flow path state, and the above problem is this field urgent need to resolve.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of a kind of selector valves that can be realized switching flow path bypass condition.
In order to solve the above technical problem, the present invention provides scheme be: a kind of selector valve, comprising:
Stator is provided with centre bore on axle center, and around the centre bore, circumferentially there are five stream hole, five streams for setting
Road hole is respectively as follows: first flow path hole, second flow path hole, third stream hole, the 4th stream hole and the 5th stream hole, the stream hole
Distance to the centre bore is all the same, the stream hole successively spaced set in order；
Rotor, with the stator Fluid Sealing, the rotor and the stator are coaxial, and the rotor can be relatively described fixed
Son rotation, the rotor are provided with the first groove body, the second groove body and third groove body towards the stator on one side,
One end of first groove body extends to the axle center of the rotor, and the other end of first groove body is with the rotor
Rotation can be connected to any stream hole,
Second groove body and the third groove body can connect described in adjacent two of any serial number with rotor rotation
Stream hole,
The described one end of first groove body far from the centre bore is apart from second groove body close to first groove body one end
Length be equal to the spacing of adjacent two stream holes of serial number,
Second groove body and the gap length of third groove body end adjacent to each other are equal to adjacent two of serial number
The spacing of the stream hole.
Further, the first groove body being arranged radially along the rotor, the length of first groove body is equal to institute
State centre bore to any stream hole length.
Further, second groove body ties up straight line groove body, the length of second groove body is equal to the two of arbitrary neighborhood
The spacing of a stream hole.
Further, the third groove body is straight line groove body, the length of the third groove body is equal to the two of arbitrary neighborhood
The spacing of a stream hole.
Further, the spacing between the first flow path hole and the 5th stream hole is adjacent greater than any serial number
Spacing between two stream holes.
A kind liquid-chromatography apparatus, including above-mentioned selector valve are further provided into the application
Sample introduction pipeline is connect with the centre bore of the selector valve；And
Chromatographic column, both ends are connect with the second flow path hole and the 4th stream hole respectively；And
Sample outlet pipe road is connect with the third stream hole；
Bypass line is connected to the first flow path hole and the 5th stream hole respectively.
Further, the sample outlet pipe Lu Yuyi detector connection, the sample introduction pipeline are connect with a topping-up pump.
Beneficial effects of the present invention: the application includes five stream holes and a centre bore, and is made by the first groove body
Heart hole is connect with any stream hole, and the adjacent stream hole of serial number is connected with third groove body by the second groove body, so as to reality
The switching of existing flow path, when using third stream hole as outlet, when centre bore is as injection port, by connecing pipeline or chromatographic column
Enter two stream holes adjacent with injection port, chromatographic column or pipeline then may be implemented by rotor in bypass condition and flow path
The switching of state.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the first embodiment of selector valve；
Fig. 2 is the rotor stereoscopic schematic diagram of the first embodiment of selector valve；
Fig. 3 is the overlay schematic diagram of the first embodiment of selector valve；
Fig. 4 is the overall schematic of liquid-chromatography apparatus；
Fig. 5 is three kinds of working state schematic representations of liquid-chromatography apparatus；
Fig. 6 is the schematic diagram of second of embodiment of selector valve；
Figure label explanation: stator 100, centre bore 110, first flow path hole 121, second flow path hole 122, third stream hole
123, the 4th stream hole 124, the 5th stream hole 125, rotor 200, the first groove body 210, the second groove body 220, third groove body 230,
Sample introduction pipeline 3, chromatographic column 4, sample outlet pipe road 5, bypass line 6, detector 7, topping-up pump 8.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As depicted in figs. 1 and 2, a kind of selector valve, including stator 100 and rotor 200.
As shown in Fig. 1 to Fig. 3 and Fig. 5, stator 100 includes surface and inner face, is offered on the axle center on 100 surface of stator
Hole 110 centered on the through-hole of inner face is extended to, is that the void for being located at 100 surface of stator is established in the center of circle with the centre bore 110
Quasi- circle, then opens up a stream hole every length d1 on the circumference of the imaginary circles, opening up five stream holes altogether is respectively first
Stream hole 121, second flow path hole 122, third stream hole 123, the 4th stream hole 124 and the 5th stream hole 125, wherein first-class
Spacing d2 of the road hole 121 apart from the 5th stream hole 125 can be identical as d1 or different with d1, in this application, excellent
The d2 of choosing is greater than d1.
As shown in Fig. 2, rotor 200 and 100 Fluid Sealing of stator, the rotor 200 and the stator 100 are coaxial,
The rotor 200 can be rotated relative to the stator 100, specifically, the rotation of rotor 200 can be driven by power source, be moved
Power source can be but not limited to motor, and the rotor 200 is provided with the first groove body 210, second towards the stator 100 on one side
Groove body 220 and third groove body 230.
Wherein, as shown in Fig. 2, one end of the first groove body 210 extends to the axle center of the rotor 200, first groove body
210 other end can be connected to any stream hole with the rotor 200 rotation, and in this application, the first groove body 210 is straight
Wire casing, length is identical as the radius of imaginary circles, it should be understood that the groove body is also possible to curved groove or arc groove.
Wherein, as shown in Fig. 1 to Fig. 3 and Fig. 5, the second groove body 220 and third groove body 230 are rotated with the rotor 200,
When rotor 200 turns to different location, the second groove body 220 and third groove body 230 can connect adjacent two streams of any serial number
Lu Kong, wherein second groove body 220 and the gap length of the third groove body 230 end adjacent to each other are adjacent with serial number
Two stream holes spacing d1 it is identical, in this way be arranged and can guarantee in rotor 200 when rotating to a certain position, the second slot
Body 220 and third groove body 230 can simultaneously turn on two pairs of adjacent stream holes and form two flow paths not intervened mutually.
It should be understood that the second groove body 220 and third groove body 230 may each be straight line groove body or arc groove body, such as Fig. 3
Shown, when the second groove body 220 is straight line groove body, the length of second groove body 220 is equal to the adjacent flow path of any two serial number
The spacing in hole, Fig. 5 shows the second groove body of one kind and third groove body is the embodiment of arc groove.
And since d2 is greater than d1 in the application, no matter rotor 200 rotates to any, the second groove body 220 and third groove body 230
First flow path hole 121 can not all be connected with the 5th stream hole 125, can guarantee do not connecting first by other pipelines in this way
In the case where stream hole 121 and the 5th stream hole 125, first flow path hole 121 and second flow path hole 122 remain disconnection shape
State, so as to which bypass is preferably arranged.
In order to make it easy to understand, the application is illustrated the working condition of the fluid valve, the application can be turned by rotation
Son 200, controls the on-off between the on-off and adjacent stream hole between different stream holes and centre bore 110, to realize
The switching of flow path and the effect for bypassing flow path, the application can at least be switched in following three kinds of working conditions,
Centre bore 110 is connected to by one: the first groove body 210 of state with third stream hole 123, forms the first access；Second slot
5th stream hole 125 is connected to form alternate path by body 220 with the 4th stream hole 124.
Centre bore 110 is connected to by two: the first groove body 210 of state with first flow path hole 121, forms the first access；Second slot
Second flow path hole 122 is connected to form alternate path by body 220 with third stream hole 123；Third groove body 230 is by the 5th stream hole
125 are connected to form third path with the 4th stream hole 124.
Centre bore 110 is connected to by three: the first groove body 210 of state with second flow path hole 122, forms the first access；Second slot
Third stream hole 123 is connected to form alternate path by body 220 with the 4th stream hole 124.
The application heart hole 110 in use is used as import that will commutate when third stream hole 123 is as outlet
Or the both ends for the pipeline for switching bypass is needed to be connected to second flow path hole 122 and the 4th stream hole 124, by state
One, it is switched between state two and state three, so as to realize the bypass and commutation to the pipeline.
On the basis of the above, the application in order to facilitate understanding, the application further provide a kind of flow path selection valve in color
Application in phase liquid spectrum, as shown in figure 4, a kind of liquid-chromatography apparatus, including selector valve above-mentioned, sample introduction pipeline 3, chromatographic column 4,
Sample outlet pipe road 5.
Wherein, sample introduction pipeline 3 is connect with the centre bore 110 of the selector valve；The both ends of chromatographic column 4 are respectively with described second
Stream hole 122 and the 4th stream hole 124 connection；Sample outlet pipe road 5 is connect with third stream hole 123；Bypass line 6 is for connecting
Connect first flow path hole 121 and the 5th stream hole 125.
The sample introduction pipeline 3 is connect with a topping-up pump 8, by liquid pump to 3 injected sample of sample introduction pipeline, the sample outlet pipe road
5 connect with a detector 7, are detected by the sample that detector 7 can flow out sample outlet pipe road 5.
The working condition of the liquid-chromatography apparatus is illustrated below, firstly, Vavle switching will be selected as shown in Fig. 5 (a)
To state one, sample is directly flowed into sample outlet pipe road 5 from sample introduction pipeline 3 at this time, and chromatographic column 4 is in bypass；
As shown in Fig. 5 (b), selector valve is switched to state two, sample forward direction flows into chromatographic column 4 at this time；
As shown in Fig. 5 (c), selector valve is switched to state three, sample reversely flows into chromatographic column 4 at this time.
Above-mentioned liquid-chromatography apparatus is cooperated by the selector valve with the application, so that switching be selected to make chromatographic column 4
In bypassing or be linked into chromatographic column 4 in sample flow path, and flow direction of the fluid in chromatographic column 4 can be switched.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (7)
1. a kind of selector valve, comprising:
Stator is provided with centre bore on axle center, and around the centre bore, circumferentially there are five stream hole, five stream holes for setting
Successively are as follows: first flow path hole, second flow path hole, third stream hole, the 4th stream hole and the 5th stream hole, the stream hole to institute
The distance for stating centre bore is all the same, the stream hole successively equidistant (d1) setting in order；
Rotor, with the stator Fluid Sealing, the rotor and the stator are coaxial, and the rotor can the relatively described stator turn
Dynamic, the rotor is provided with the first groove body, the second groove body and third groove body towards the stator on one side,
One end of first groove body extends to the axle center of the rotor, and the other end of first groove body is rotated with the rotor
It can be connected to any stream hole,
Second groove body and the third groove body are rotated with the rotor can connect two adjacent flow paths of any serial number
Hole,
The described one end of first groove body far from the centre bore is apart from second groove body close to the length of first groove body one end
Degree is equal to the spacing (d1) of two adjacent stream holes of serial number,
Second groove body and the gap length of third groove body end adjacent to each other are equal to described in adjacent two of serial number
The spacing (d1) of stream hole.
2. liquid-chromatography apparatus as described in claim 1, which is characterized in that first groove body is set along the radial direction of the rotor
It sets, the length of first groove body is equal to the centre bore to the length of any stream hole.
3. liquid-chromatography apparatus as described in claim 1, which is characterized in that second groove body ties up straight line groove body, and described the
The length of two groove bodies is equal to the spacing (d1) of two stream holes of arbitrary neighborhood.
4. liquid-chromatography apparatus as described in claim 1, which is characterized in that the third groove body is straight line groove body, described the
The length of three groove bodies is equal to the spacing (d1) of two stream holes of arbitrary neighborhood.
5. liquid-chromatography apparatus as described in claim 1, which is characterized in that the first flow path hole and the 5th stream hole
Between spacing (d2) be greater than the spacing (d1) between adjacent two stream holes of any serial number.
6. a kind of liquid-chromatography apparatus, including such as selector valve described in any one of claim 1 to 5；And
Sample introduction pipeline is connect with the centre bore of the selector valve；And
Chromatographic column, both ends are connect with the second flow path hole and the 4th stream hole respectively；And
Sample outlet pipe road is connect with the third stream hole；
Bypass line is connected to the first flow path hole and the 5th stream hole respectively.
7. liquid-chromatography apparatus as claimed in claim 6, which is characterized in that the sample outlet pipe Lu Yuyi detector connection, institute
Sample introduction pipeline is stated to connect with a topping-up pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811510703.3A CN109541094A (en) | 2018-12-11 | 2018-12-11 | A kind of selector valve and liquid-chromatography apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811510703.3A CN109541094A (en) | 2018-12-11 | 2018-12-11 | A kind of selector valve and liquid-chromatography apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109541094A true CN109541094A (en) | 2019-03-29 |
Family
ID=65853367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811510703.3A Pending CN109541094A (en) | 2018-12-11 | 2018-12-11 | A kind of selector valve and liquid-chromatography apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109541094A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864138A (en) * | 2019-11-26 | 2020-03-06 | 北京华创精科生物技术有限公司 | Switching valve |
| CN114235898A (en) * | 2021-12-14 | 2022-03-25 | 苏州英赛斯智能科技有限公司 | Multi-position rotary valve |
| CN114352768A (en) * | 2020-09-28 | 2022-04-15 | 青岛海尔电冰箱有限公司 | Electric switching valve, refrigerating system and refrigerator |
| CN114518426A (en) * | 2022-03-03 | 2022-05-20 | 宁波艾纯生物科技有限公司 | Sample injection valve |
| CN117028619A (en) * | 2023-10-07 | 2023-11-10 | 深圳市恒永达科技股份有限公司 | Switching valve for analysis device, exhaust method, and analysis device |
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| CN104676047A (en) * | 2015-02-16 | 2015-06-03 | 苏州赛谱仪器有限公司 | Injection valve |
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| CN209432756U (en) * | 2018-12-11 | 2019-09-24 | 苏州英赛斯智能科技有限公司 | A kind of selector valve and liquid-chromatography apparatus |
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| CN110864138A (en) * | 2019-11-26 | 2020-03-06 | 北京华创精科生物技术有限公司 | Switching valve |
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| CN114352768B (en) * | 2020-09-28 | 2024-01-05 | 青岛海尔电冰箱有限公司 | Refrigerating system and refrigerator |
| CN114235898A (en) * | 2021-12-14 | 2022-03-25 | 苏州英赛斯智能科技有限公司 | Multi-position rotary valve |
| CN114518426A (en) * | 2022-03-03 | 2022-05-20 | 宁波艾纯生物科技有限公司 | Sample injection valve |
| CN114518426B (en) * | 2022-03-03 | 2023-11-03 | 宁波艾纯生物科技有限公司 | Sample injection valve |
| CN117028619A (en) * | 2023-10-07 | 2023-11-10 | 深圳市恒永达科技股份有限公司 | Switching valve for analysis device, exhaust method, and analysis device |
| CN117028619B (en) * | 2023-10-07 | 2024-01-23 | 深圳市恒永达科技股份有限公司 | Switching valve for analysis device, exhaust method, and analysis device |
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