CN110864139B - Column position valve - Google Patents
Column position valve Download PDFInfo
- Publication number
- CN110864139B CN110864139B CN201911211634.0A CN201911211634A CN110864139B CN 110864139 B CN110864139 B CN 110864139B CN 201911211634 A CN201911211634 A CN 201911211634A CN 110864139 B CN110864139 B CN 110864139B
- Authority
- CN
- China
- Prior art keywords
- groove
- valve head
- rotor
- valve
- main body
- 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.)
- Active
Links
Images
Classifications
-
- 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
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a column position valve, which comprises a valve seat, a rotor and a valve head, wherein the valve head is fixed on the valve seat; the valve head is provided with an inlet, an outlet and a plurality of pairs of interfaces, the plurality of pairs of interfaces are distributed on the same circumference, and each pair of interfaces is connected with the same chromatographic column; the rotor has first groove, second groove and third groove, and first groove is located between second groove and the third groove, and first groove is the linear type structure, and the main part in second groove and the main part in third groove are the arc line type structure, and the main part in second groove and the main part in third groove distribute on same circumference, and the distance phase-match between the import and the export on circumference and the valve head. The invention can simultaneously realize the switching among 2 random chromatographic columns, the chromatographic column bypass and the switching between the positive phase and the negative phase of the chromatographic columns, avoid the manual disassembly and assembly of pipelines and improve the working efficiency.
Description
Technical Field
The invention relates to the technical field of structures, in particular to a column position valve.
Background
The liquid phase chromatographic instrument is an instrument which firstly separates a mixture and then analyzes, identifies or prepares the mixture by utilizing the difference of the distribution ratio of the mixture between liquid and solid or immiscible two liquids. When analyzing or preparing a sample by using a liquid chromatography instrument, a plurality of chromatographic columns are connected by using a column position valve, and the following functions are required to be realized: 1. switching between any 2 of the plurality of chromatography columns; 2. a chromatography column bypass, i.e. the flow path does not pass through the chromatography column; 3. switching between the positive phase and the negative phase of the chromatographic column, namely, exchanging the inlet and the outlet of the chromatographic column.
However, the column position valve in the prior art has a single style, cannot realize the above three functions at the same time, and only 2 or more than 2 valves are connected in series, which increases the cost and complicates the operation; or the pipeline is replaced through manual disassembly and assembly, so that the use efficiency is influenced.
Disclosure of Invention
The invention provides a column position valve, which aims to overcome the defect that the column position valve in the prior art cannot realize three functions at the same time.
The invention provides a column position valve, which comprises a valve seat, a rotor and a valve head, wherein the valve head is fixed on the valve seat;
wherein the valve head has an inlet, an outlet and a plurality of pairs of ports distributed on the same circumference, each pair of ports being connected to the same chromatographic column; the rotor is provided with a first groove, a second groove and a third groove, the first groove is positioned between the second groove and the third groove, the first groove is of a linear structure, the main body part of the second groove and the main body part of the third groove are of arc-shaped structures, the main body part of the second groove and the main body part of the third groove are distributed on the same circumference, and the circumference is matched with the distance between an inlet and an outlet on the valve head.
Alternatively, the inlet and outlet ports on the valve head are each connected to a first groove on the rotor when the valve head and rotor are in a first positional relationship.
Optionally, when the valve head and the rotor are in the second positional relationship, the inlet on the valve head is connected to the second groove on the rotor, the outlet on the valve head is connected to the third groove on the rotor, and the two ports on the valve head connected to the same chromatographic column are respectively connected to the second groove and the third groove on the rotor.
Optionally, the second slot comprises a first edge portion and a second edge portion, the first edge portion and the second edge portion are respectively connected with the main body portion of the second slot, and the main body portion of the second slot is located between the first edge portion and the second edge portion;
the third groove comprises a third edge and a fourth edge, the third edge and the fourth edge are respectively connected with the main body part of the third groove, and the main body part of the third groove is positioned between the third edge and the fourth edge;
wherein one end of the first edge portion, one end of the second edge portion, one end of the third edge portion and one end of the fourth edge portion are distributed on the same circumference.
Optionally, when the valve head and the rotor are in the second positional relationship, two ports on the valve head connected to the same chromatographic column are respectively connected to one end of the first edge portion and one end of the third edge portion.
Optionally, the first edge portion and the second edge portion are symmetrical with respect to the main body portion of the second slot, and the third edge portion and the fourth edge portion are symmetrical with respect to the main body portion of the third slot.
Optionally, the diameter of the circumference on which the main body portion of the second groove and the main body portion of the third groove are located is equal to the distance between the inlet and the outlet on the valve head.
According to the invention, by setting the shape and position of the diversion trench on the rotor, one column position valve can be simultaneously connected with more than 2 chromatographic columns, and the switching among any 2 chromatographic columns, the chromatographic column bypass and the switching between the positive phase and the negative phase of the chromatographic column can be simultaneously realized, so that the switching is convenient, the manual disassembly and assembly of pipelines are avoided, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a column position valve in an embodiment of the invention;
FIG. 2 is a schematic diagram of a valve head of a column position valve according to an embodiment of the present invention;
FIG. 3 is a schematic view of a rotor of a spool valve in an embodiment of the present invention;
FIG. 4 is a schematic view of a combination of a valve head and a rotor of a column position valve in an embodiment of the invention;
FIG. 5 is a schematic diagram of the connection between the valve head of the column position valve and the external pipeline in the embodiment of the invention;
FIG. 6 is a schematic forward view of a chromatography column in an embodiment of the invention;
FIG. 7 is a schematic reverse view of a chromatography column in an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a column position valve, which comprises a valve seat, a rotor (also called a valve core) and a valve head (also called a stator), wherein the valve head is fixed on the valve seat, the rotor is arranged in an accommodating space formed by the valve head and the valve seat, and the rotor is rotatably connected with the valve head. The column position valve also comprises a motor, the motor is connected with the rotor, and the valve core and the valve head are sealed.
In addition, if the spool valve is a manual valve, the spool valve further includes a handle connected to the rotor.
As shown in fig. 2 and 3, which are respectively block diagrams of a valve head and a rotor in an embodiment of the present invention; as shown IN fig. 4, the valve head and rotor assembly of the embodiment of the present invention (the threaded hole of the stator head adapter is omitted here, and only the bottom of the valve head aperture is shown) has an inlet IN, an outlet OUT, and multiple pairs of ports (a1 port-B1, a2 port-B2 port, A3 port-B3 port, a4 port-B4 port, and a5 port-B5 port) distributed on the same circumference, each pair of ports being connected to the same column.
Specifically, as shown in fig. 5, a connection diagram of a valve head of a column position valve and an external pipeline is shown, S1-S5 are 5 chromatographic columns, a1 port and a B1 port are respectively connected with a chromatographic column S1, a2 port and a B2 port are respectively connected with a chromatographic column S2, A3 port and a B3 port are respectively connected with a chromatographic column S3, a4 port and a B4 port are respectively connected with a chromatographic column S4, and a5 port and a B5 port are respectively connected with a chromatographic column S5.
IN addition, as shown IN fig. 3, the rotor has a first groove, a second groove and a third groove, the first groove is located between the second groove and the third groove, the first groove is IN a linear structure, the main body part of the second groove and the main body part of the third groove are IN an arc-linear structure, and the main body part of the second groove and the main body part of the third groove are distributed on the same circumference, which matches the distance between the inlet IN and the outlet OUT on the valve head. The rotor in this embodiment is a moving part that is connected to a motor or handle.
Specifically, the diameters of the circumferences IN which the main body portions of the second groove and the third groove of the rotor IN the embodiment of the present invention are located are equal to the distance between the inlet IN and the outlet OUT on the valve head.
Further, the second groove of the rotor in the embodiment of the present invention includes a first edge portion and a second edge portion, the first edge portion and the second edge portion are respectively connected to the main body portion of the second groove, and the main body portion of the second groove is located between the first edge portion and the second edge portion.
Correspondingly, the third slot of the rotor comprises a third edge portion and a fourth edge portion, which are connected with the main body portion of said third slot, respectively, and which are located between the third edge portion and the fourth edge portion.
Wherein, one end of the first edge portion, one end of the second edge portion, one end of the third edge portion and one end of the fourth edge portion are distributed on the same circumference. The first and second edge portions are symmetrical with respect to the main body portion of the second slot, and the third and fourth edge portions are symmetrical with respect to the main body portion of the third slot.
Based on the above connection relationship, when the valve head and the rotor are in the first position relationship, the inlet and the outlet on the valve head are respectively connected with the first groove on the rotor, as shown in fig. 4. At this point, the spool valve is IN a bypass state, i.e., solvent flows IN from the inlet IN on the valve head, through the first slot on the rotor, and OUT the outlet OUT on the valve head.
When the valve head and the rotor are IN a second positional relationship, as shown IN fig. 6 and 7, an inlet IN on the valve head is connected with a second groove on the rotor, an outlet OUT on the valve head is connected with a third groove on the rotor, and two ports on the valve head connected with the same chromatographic column are respectively connected with the second groove and the third groove on the rotor.
Specifically, when the valve head and the rotor are in the second positional relationship, two ports on the valve head, which are connected to the same chromatographic column, are respectively connected to one end of the first edge portion and one end of the third edge portion.
As shown IN fig. 6, it is a schematic forward view of the chromatographic column S3 IN the embodiment of the present invention, that is, the solvent flows IN from the inlet IN of the valve head, flows through the second groove on the rotor, flows through the port A3 of the valve head, reaches the inlet of the chromatographic column S3, flows through the chromatographic column S3, reaches the port B3 of the valve head from the outlet of the chromatographic column S3, then flows OUT from the outlet OUT of the chromatographic column through the third groove on the rotor, and the sequence is: IN-A3-S3-B3-OUT.
As shown IN fig. 6, the reverse schematic diagram of the chromatographic column S3 IN the embodiment of the present invention is shown, that is, the solvent flows IN from the inlet IN of the valve head, flows through the second groove on the rotor, flows through the port B3 of the valve head, reaches the inlet of the chromatographic column S3, flows through the chromatographic column S3, reaches the port A3 of the valve head from the outlet of the chromatographic column S3, then flows OUT from the outlet OUT of the chromatographic column through the third groove on the rotor, and the sequence is: IN-B3-S3-A3-OUT.
The other column front and back sides are similar to the column S3, and only the angle of rotation of the rotor is different. The above figures of the embodiments of the present invention take 5 columns as an example, but the scope of the present invention is not limited to 5 columns.
According to the embodiment of the invention, by setting the shape and the position of the diversion trench on the rotor, one column position valve can be simultaneously connected with more than 2 chromatographic columns, and the switching among any 2 chromatographic columns, the chromatographic column bypass and the switching between the positive phase and the negative phase of the chromatographic columns can be simultaneously realized, so that the switching is convenient, the manual disassembly and assembly of pipelines are avoided, and the working efficiency is improved.
The steps of a method described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A column position valve is characterized by comprising a valve seat, a rotor and a valve head, wherein the valve head is fixed on the valve seat, the rotor is arranged in an accommodating space formed by the valve head and the valve seat, and the rotor is rotatably connected with the valve head;
wherein the valve head has an inlet, an outlet and a plurality of pairs of ports distributed on the same circumference, each pair of ports being connected to the same chromatographic column; the rotor is provided with a first groove, a second groove and a third groove, the first groove is positioned between the second groove and the third groove, the first groove is of a linear structure, the main body part of the second groove and the main body part of the third groove are of an arc-shaped structure, the main body part of the second groove and the main body part of the third groove are distributed on the same circumference, the circumference is matched with the distance between an inlet and an outlet on the valve head, the second groove comprises a first edge part and a second edge part, the first edge part and the second edge part are respectively connected with the main body part of the second groove, the main body part of the second groove is positioned between the first edge part and the second edge part, the third groove comprises a third edge part and a fourth edge part, and the third edge part and the fourth edge part are respectively connected with the main body part of the third groove, and the main body part of the third groove is positioned between the third edge part and the fourth edge part, and the first groove is not communicated with the interface.
2. The spool valve of claim 1, wherein the inlet and outlet ports on said valve head are respectively connected to the first groove on said rotor when said valve head is in the first positional relationship with said rotor.
3. The column position valve of claim 1, wherein when the valve head is in a second positional relationship with the rotor, the inlet port on the valve head is connected to a second groove on the rotor, the outlet port on the valve head is connected to a third groove on the rotor, and the two ports on the valve head connected to the same chromatographic column are connected to the second groove and the third groove on the rotor, respectively.
4. The spool valve of claim 3, wherein an end of said first rim portion and an end of said second rim portion and an end of said third rim portion and an end of said fourth rim portion are disposed on a common circumference.
5. The column position valve of claim 4, wherein two ports on the valve head that are connected to the same chromatography column are connected to one end of the first rim portion and one end of the third rim portion, respectively, when the valve head and the rotor are in the second positional relationship.
6. The spool valve of claim 4, wherein the first edge portion and the second edge portion are symmetrical with respect to the main body portion of the second slot, and the third edge portion and the fourth edge portion are symmetrical with respect to the main body portion of the third slot.
7. The spool valve of claim 1, wherein the diameter of the circumference in which the main body portion of the second groove and the main body portion of the third groove are located is equal to the distance between the inlet and outlet ports on the valve head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911211634.0A CN110864139B (en) | 2019-12-02 | 2019-12-02 | Column position valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911211634.0A CN110864139B (en) | 2019-12-02 | 2019-12-02 | Column position valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110864139A CN110864139A (en) | 2020-03-06 |
| CN110864139B true CN110864139B (en) | 2021-10-26 |
Family
ID=69657041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911211634.0A Active CN110864139B (en) | 2019-12-02 | 2019-12-02 | Column position valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110864139B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115698702A (en) | 2020-05-22 | 2023-02-03 | 沃特世科技公司 | Multi-sample channel device for liquid chromatography |
| EP4244613A1 (en) * | 2021-01-26 | 2023-09-20 | Waters Technologies Corporation | Rotary valve having bypass state |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633182A (en) * | 2015-02-16 | 2015-05-20 | 苏州赛谱仪器有限公司 | Column-position valve |
| CN204477386U (en) * | 2015-02-16 | 2015-07-15 | 苏州赛谱仪器有限公司 | Post position valve |
| CN209229069U (en) * | 2018-11-21 | 2019-08-09 | 苏州赛谱仪器有限公司 | A kind of single-column selector valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3084420B1 (en) * | 2013-12-19 | 2018-10-17 | GE Healthcare Bio-Sciences AB | Chromatography system comprising a rotary valve and a feed recirculation flow path |
| EP3084421B1 (en) * | 2013-12-19 | 2019-02-27 | GE Healthcare Bio-Sciences AB | Chromatography system comprising rotary valves and a feed recirculation flow path |
-
2019
- 2019-12-02 CN CN201911211634.0A patent/CN110864139B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633182A (en) * | 2015-02-16 | 2015-05-20 | 苏州赛谱仪器有限公司 | Column-position valve |
| CN204477386U (en) * | 2015-02-16 | 2015-07-15 | 苏州赛谱仪器有限公司 | Post position valve |
| CN209229069U (en) * | 2018-11-21 | 2019-08-09 | 苏州赛谱仪器有限公司 | A kind of single-column selector valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110864139A (en) | 2020-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110864139B (en) | Column position valve | |
| AU2008217771B2 (en) | Rotation valve for sample injection | |
| AU2008217770B2 (en) | Selection valve | |
| EP3084421B1 (en) | Chromatography system comprising rotary valves and a feed recirculation flow path | |
| JP4913470B2 (en) | High performance liquid chromatograph using flow path switching valve and analysis method | |
| US8656955B2 (en) | Rotary column selector valve | |
| EP3084420B1 (en) | Chromatography system comprising a rotary valve and a feed recirculation flow path | |
| CN106461623B (en) | Method and valve in continuous chromatography system | |
| US10113995B2 (en) | Multi-position, micro-fluidic valve assembly with multiple radial grooves to enable individual or combined flows | |
| EP2888595A1 (en) | Versatile rotary valve | |
| CN104279159B (en) | High torque (HT) rotation motor | |
| WO2016128316A1 (en) | Means and methods for minimizing swept and dead volumes in chromatographic applications | |
| CN202601431U (en) | Electrical switching device | |
| CN211513510U (en) | Quantitative ring and chromatographic column combined device | |
| CN211374641U (en) | PH electrode flow-through cell and back pressure valve combined device | |
| CN216692271U (en) | Backpressure pH integrated valve module | |
| CN211536629U (en) | Chromatographic column and column selection valve combined device | |
| CN110864138A (en) | Switching valve | |
| CN111157662A (en) | Multi-column rotary valve and chromatograph | |
| CN209432756U (en) | A kind of selector valve and liquid-chromatography apparatus | |
| CN212180705U (en) | Column selection valve and chromatographic column combined device | |
| US20230408456A1 (en) | Circulating multidimensional liquid chromatography and application thereof | |
| CN214473049U (en) | Sample introduction chromatography device based on four-column selector valve | |
| CN217112206U (en) | Multi-column connection system | |
| CN216870473U (en) | Chromatography experiment system and rotary valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220301 Address after: 310053 room 10007, 1f, No. 6899, Wentao Road, Puyan street, Binjiang District, Hangzhou, Zhejiang Patentee after: Zhejiang Jinyi Shengshi Biological Engineering Co.,Ltd. Address before: 102208 room 1011, 10 / F, block a, Longyu center, building 1, yard 1, Longyu middle street, Huilongguan town, Changping District, Beijing Patentee before: BEIJING HUACHUANG JINGKE BIOTECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |