CN212060100U - Multi-column rotary valve and chromatograph - Google Patents
Multi-column rotary valve and chromatograph Download PDFInfo
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- CN212060100U CN212060100U CN202020201458.4U CN202020201458U CN212060100U CN 212060100 U CN212060100 U CN 212060100U CN 202020201458 U CN202020201458 U CN 202020201458U CN 212060100 U CN212060100 U CN 212060100U
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- 239000012530 fluid Substances 0.000 claims abstract description 45
- 210000005056 cell body Anatomy 0.000 claims description 33
- 238000009826 distribution Methods 0.000 claims description 4
- 238000004587 chromatography analysis Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Abstract
The utility model discloses a many column positions rotary valve and chromatograph. The multi-spool rotary valve comprising: a stator and a rotor; the stator is provided with a fluid inlet hole, a fluid outlet hole and 2N chromatographic column connecting holes which are uniformly distributed in the circumference; wherein N is a positive integer greater than 1. A chromatograph comprises the multi-column-position rotary valve. The utility model has the advantages that: the selection of a plurality of components is realized on the same valve, and the fluid can bypass, flow forwards and flow backwards through the components, so that more automatic operation can be realized in chromatographic analysis work.
Description
Technical Field
The utility model relates to a chromatograph field, concretely relates to many column positions rotary valve.
Background
Multiple chromatographic columns are often used on the chromatograph and need to be switched frequently, and liquid passing through the chromatographic columns often needs to be changed in direction to back flush the chromatographic columns and does not pass through the chromatographic columns, so that the quick change of system fluid is facilitated. The conventional approach is to require 2 (1 reversing valve and 1 multi-column valve) or 3 valves (1 reversing valve and 2 selector valves) to achieve these functions.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a rotary valve realizes the switching of many posts (2 and above) on a valve to can realize the bypass to the part, positive current and palirrhea function. The operation is convenient, the dead volume is avoided, the number of valves is reduced, and the failure rate and the use cost of the system are reduced.
In order to solve the technical problem, the utility model provides a many post positions rotary valve, include: a stator and a rotor;
the stator is provided with a fluid inlet hole, a fluid outlet hole and 2N chromatographic column connecting holes which are uniformly distributed in the circumference; wherein N is a positive integer greater than 1;
the fluid inlet holes and the fluid outlet holes are symmetrically distributed around the center of the stator, and the distance from the fluid inlet holes and the fluid outlet holes to the center of the stator is R2; the distance from the 2N chromatographic column connecting holes to the center of the stator is R1, wherein R1 is greater than R2;
a first stator groove body and a second stator groove body are arranged on one surface of the stator facing the rotor;
the first stator groove body and the second stator groove body are symmetrically distributed around the center of the stator, the distances from the first stator groove body and the second stator groove body to the center of the stator are R1, the included angles formed by the starting point and the stopping point of the first stator groove body and the second stator groove body and the center of the stator are D1, and D1 is smaller than 360/(2N +2) degrees;
the rotor is in fluid seal with the stator, the rotor is coaxial with the stator, the rotor can rotate relative to the stator, and a first rotor groove body and a second rotor groove body are arranged on one surface of the rotor facing the stator;
the first cell body of rotor with rotor second cell body centers on the central symmetric distribution of rotor, the first cell body of rotor with rotor second cell body is the arc cell body that the central angle is 180 degrees, the first cell body of rotor with rotor second cell body arrives the distance at the center of rotor is R2, the first cell body of rotor with the both ends of rotor second cell body all extend to with the center of rotor is centre of a circle and on the radius is the circumference of R1, the extension of the first cell body of rotor with the contained angle of the extension of rotor second cell body is D1.
In one embodiment, N is 3.
In one embodiment, N is 2.
In one embodiment, R2 is half of R1.
In one embodiment, D1 is equal to 180/(2N + 2).
In one embodiment, the first stator slot is a circular arc slot.
In one embodiment, the stator second slot is a circular arc slot.
In one embodiment, the first stator slot is a straight slot.
In one embodiment, the stator second slot is a straight slot.
A chromatograph comprises the multi-column-position rotary valve.
The utility model has the advantages that:
the selection of a plurality of components is realized on the same valve, and the fluid can bypass, flow forwards and flow backwards through the components, so that more automatic operation can be realized in chromatographic analysis work.
Drawings
Fig. 1 is a schematic view of a stator in a multi-position rotary valve according to the present invention.
Fig. 2 is a schematic view of the rotor in the multi-position rotary valve of the present invention.
Fig. 3 is a schematic diagram of the bypass realized by the multi-column position rotary valve of the present invention.
Fig. 4, 5 and 6 are schematic diagrams of the multi-column rotary valve of the present invention for achieving positive and reverse flow of different chromatography column components, respectively.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
A multi-spool rotary valve comprising: a stator and a rotor;
the stator is provided with a fluid inlet hole, a fluid outlet hole and 2N chromatographic column connecting holes which are uniformly distributed in the circumference; wherein N is a positive integer greater than 1; (it will be understood that the uniform circumferential distribution herein means uniform distribution of the angles formed by the fluid inlet holes, the fluid outlet holes and the 2N connecting holes of the chromatographic column with the center of the stator)
The fluid inlet holes and the fluid outlet holes are symmetrically distributed around the center of the stator, and the distance from the fluid inlet holes and the fluid outlet holes to the center of the stator is R2; the distance from the 2N chromatographic column connecting holes to the center of the stator is R1, wherein R1 is greater than R2;
a first stator groove body and a second stator groove body are arranged on one surface of the stator facing the rotor;
the first stator groove body and the second stator groove body are symmetrically distributed around the center of the stator, the distances from the first stator groove body and the second stator groove body to the center of the stator are R1, the included angles formed by the starting point and the stopping point of the first stator groove body and the second stator groove body and the center of the stator are D1, and D1 is smaller than 360/(2N +2) degrees;
the rotor and the stator are in fluid seal (namely, fluid between the rotor and the stator cannot flow out from a gap between the rotor and the stator), the rotor and the stator are coaxial, the rotor can rotate relative to the stator, and one surface of the rotor, facing the stator, is provided with a first rotor groove body and a second rotor groove body;
the first cell body of rotor with rotor second cell body centers on the central symmetric distribution of rotor, the first cell body of rotor with rotor second cell body is the arc cell body that the central angle is 180 degrees, the first cell body of rotor with rotor second cell body arrives the distance at the center of rotor is R2, the first cell body of rotor with the both ends of rotor second cell body all extend to with the center of rotor is centre of a circle and on the radius is the circumference of R1, the extension of the first cell body of rotor with the contained angle of the extension of rotor second cell body is D1.
In one embodiment, N is 3.
In one embodiment, N is 2.
In one embodiment, R2 is half of R1.
In one embodiment, D1 is equal to 180/(2N + 2).
In one embodiment, the first stator slot is a circular arc slot.
In one embodiment, the stator second slot is a circular arc slot.
In one embodiment, the first stator slot is a straight slot.
In one embodiment, the stator second slot is a straight slot.
A chromatograph comprises the multi-column-position rotary valve.
The following describes a specific application scenario of the present invention:
a method for changing the direction of flow path and a rotary valve, particularly a three-position valve, is provided with three chromatographic column components C1, C2 and C3, including a stator and a rotor. The driving rotor can adopt various driving devices, and can be a stepping motor in common.
The stator is shown in fig. 1, with 8 holes in the stator, evenly distributed at an angle of 45 degrees, with ports (1a,2a,3a,1b,2b,3b) for the connection of the components (i.e. the column connection ports described above) on the circumference of diameter R1, inlets (a) and outlets (b) for the fluid (i.e. fluid inlet ports, fluid outlet ports described above) on the circumference of R2, and 2 slots (C4 and C5) on the circumference of R1 of the stator, the start and stop of which forms an angle of D1 degrees (0 degrees from the centre of the circle)0<D1<450In this case 22.50For example).
The rotor is shown in fig. 2, and has 2 slots (C6 and C7 in fig. 2), wherein the semicircular slots are located on the circumference of R2 and coincide with R2 of the stator. The two ends of the groove respectively extend to the circumference of R1(R1 is consistent with R1 of the stator). The included angle of the extension part is D1 degrees (0)0<D1<450In this case 22.50For example), the rotor is drivingThe movable device rotates under the action of the movable device and can rotate to different positions.
The inlet of the fluid is connected with the port a of the stator, the outlet of the fluid is connected with the port b of the stator, the component C1 is respectively connected with the port 1a and the port 1b of the stator, the component C2 is respectively connected with the port 2a and the port 2b of the stator, the component C3 is respectively connected with the port 3a and the port 3b of the stator, the motor drives the rotor to rotate to the position 1 (as shown in figure 3, the position is temporarily considered that the rotor is at 0 degree), at the moment, the fluid enters from the port a, passes through the grooves C6 and C7 of the rotor and the grooves C4 and C5 of the stator respectively, and flows out from the port b. This state is a bypass state, and fluid does not pass through components C1, C2, and C3.
When the rotor rotates 45 degrees clockwise (with the initial position 1 as a reference point), and reaches the position 2 (as shown in the left side of fig. 4), the fluid enters from the port a of the stator, flows out from the port 1a after passing through the groove of the rotor, passes through the component C1 from top to bottom, flows into the valve from the port 1b of the stator, and flows out of the valve from the port b of the stator after passing through the groove of the rotor. This state is positive flow through component C1. When the rotor rotates 22.5 degrees clockwise (with the initial position 1 as a reference point) to the position 3 (as shown on the right side of fig. 4), the fluid enters from the port a of the stator, flows out from the port 1b after passing through the groove of the rotor, passes through the component C1 from bottom to top, flows into the valve from the port 1a of the stator, and flows out of the valve from the port b of the stator after passing through the groove of the rotor. This condition is reversed flow through block C1.
When the rotor rotates 90 degrees clockwise (using the initial position 1 as a reference point) to the position 4 (as shown in the left side of fig. 5), the fluid enters from the port a of the stator, flows out from the port 2a after passing through the groove of the rotor, passes through the component C2 from top to bottom, flows into the valve from the port 2b of the stator, and flows out of the valve from the port b of the stator after passing through the groove of the rotor. This state is positive flow through component C2. When the rotor rotates clockwise 67.5 degrees (taking the initial position 1 as a reference point) to the position 5 (as shown on the right side of fig. 5), the fluid enters from the port a of the stator, flows out from the port 2b after passing through the groove of the rotor, passes through the component C2 from bottom to top, flows into the valve from the port 2a of the stator, and flows out of the valve from the port b of the stator after passing through the groove of the rotor. This condition is reversed flow through block C2.
When the rotor rotates 135 degrees clockwise (with the initial position 1 as a reference point), and reaches the position 6 (as shown in the left side of fig. 6), the fluid enters from the port a of the stator, flows out from the port 3a after passing through the groove of the rotor, passes through the component C3 from top to bottom, flows into the valve from the port 3b of the stator, and flows out of the valve from the port b of the stator after passing through the groove of the rotor. This state is positive flow through component C3. When the rotor rotates clockwise 112.5 degrees (with the initial position 1 as a reference point) to position 7 (as shown on the right side of fig. 6), the fluid enters from the port a of the stator, flows out from the port 3b after passing through the groove of the rotor, passes through the component C3 from bottom to top, flows into the valve from the port 3a of the stator, and flows out of the valve from the port b of the stator after passing through the groove of the rotor. This condition is reversed flow through block C3.
By performing the above steps, 3 parts of positive flow, reverse flow or bypass of the fluid respectively can be realized. When bypassing, the fluid will pass through all the grooves, thereby avoiding dead volume and avoiding fluid residue.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (10)
1. A multi-spool rotary valve comprising: a stator and a rotor;
the stator is provided with a fluid inlet hole, a fluid outlet hole and 2N chromatographic column connecting holes which are uniformly distributed in the circumference; wherein N is a positive integer greater than 1;
the fluid inlet holes and the fluid outlet holes are symmetrically distributed around the center of the stator, and the distance from the fluid inlet holes and the fluid outlet holes to the center of the stator is R2; the distance from the 2N chromatographic column connecting holes to the center of the stator is R1, wherein R1 is greater than R2;
a first stator groove body and a second stator groove body are arranged on one surface of the stator facing the rotor;
the first stator groove body and the second stator groove body are symmetrically distributed around the center of the stator, the distances from the first stator groove body and the second stator groove body to the center of the stator are R1, the included angles formed by the starting point and the stopping point of the first stator groove body and the second stator groove body and the center of the stator are D1, and D1 is smaller than 360/(2N +2) degrees;
the rotor is in fluid seal with the stator, the rotor is coaxial with the stator, the rotor can rotate relative to the stator, and a first rotor groove body and a second rotor groove body are arranged on one surface of the rotor facing the stator;
the first cell body of rotor with rotor second cell body centers on the central symmetric distribution of rotor, the first cell body of rotor with rotor second cell body is the arc cell body that the central angle is 180 degrees, the first cell body of rotor with rotor second cell body arrives the distance at the center of rotor is R2, the first cell body of rotor with the both ends of rotor second cell body all extend to with the center of rotor is centre of a circle and on the radius is the circumference of R1, the extension of the first cell body of rotor with the contained angle of the extension of rotor second cell body is D1.
2. The multi-spool rotary valve of claim 1 wherein N is 3.
3. The multi-spool rotary valve of claim 1 wherein N is 2.
4. The multi-spool rotary valve of claim 1 wherein R2 is one half of R1.
5. The multi-spool rotary valve of claim 1 wherein D1 is equal to 180/(2N + 2).
6. The multi-column rotary valve of claim 1, wherein the first slot of the stator is an arc slot.
7. The multi-column rotary valve of claim 1, wherein the stator second slot is an arc slot.
8. The multi-position rotary valve of claim 1, wherein the first slot of the stator is a linear slot.
9. The multi-position rotary valve of claim 1, wherein the stator second slot is a linear slot.
10. A chromatograph comprising a multi-position rotary valve according to claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020201458.4U CN212060100U (en) | 2020-02-24 | 2020-02-24 | Multi-column rotary valve and chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020201458.4U CN212060100U (en) | 2020-02-24 | 2020-02-24 | Multi-column rotary valve and chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212060100U true CN212060100U (en) | 2020-12-01 |
Family
ID=73533255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020201458.4U Withdrawn - After Issue CN212060100U (en) | 2020-02-24 | 2020-02-24 | Multi-column rotary valve and chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212060100U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157662A (en) * | 2020-02-24 | 2020-05-15 | 苏州英赛斯智能科技有限公司 | Multi-column rotary valve and chromatograph |
| CN114113430A (en) * | 2021-11-30 | 2022-03-01 | 泰渡生物科技(苏州)有限公司 | Chromatography experiment system and rotary valve |
-
2020
- 2020-02-24 CN CN202020201458.4U patent/CN212060100U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157662A (en) * | 2020-02-24 | 2020-05-15 | 苏州英赛斯智能科技有限公司 | Multi-column rotary valve and chromatograph |
| CN111157662B (en) * | 2020-02-24 | 2024-07-19 | 苏州英赛斯智能科技有限公司 | Multi-column rotary valve and chromatograph |
| CN114113430A (en) * | 2021-11-30 | 2022-03-01 | 泰渡生物科技(苏州)有限公司 | Chromatography experiment system and rotary valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: Building 101, Building 13, No. 998 Pangnan Road, Jiangling Street, Wujiang District, Suzhou City, Jiangsu Province, 215000 Patentee after: SUZHOU YINGSAISI INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: 215000 No. 99, yunchuang Road, Wujiang Economic and Technological Development Zone, Suzhou, Jiangsu Patentee before: SUZHOU YINGSAISI INTELLIGENT TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20201201 Effective date of abandoning: 20240719 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20201201 Effective date of abandoning: 20240719 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |