CN216900398U - Rotary valve, sample loading device and chromatography experimental system - Google Patents
Rotary valve, sample loading device and chromatography experimental system Download PDFInfo
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- CN216900398U CN216900398U CN202123433557.9U CN202123433557U CN216900398U CN 216900398 U CN216900398 U CN 216900398U CN 202123433557 U CN202123433557 U CN 202123433557U CN 216900398 U CN216900398 U CN 216900398U
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Abstract
The utility model discloses a rotary valve, a sample loading device and a chromatography experimental system.
Description
Technical Field
The utility model relates to the technical field of experimental equipment, in particular to a rotary valve, a sample loading device and a chromatography experimental system.
Background
The chromatographic equipment is an analytical instrument for separation by utilizing the difference between the physicochemical properties of each component in a mixture and the difference between the distribution degree and the flow speed of each substance through a chromatographic column.
When a chromatographic device is used for analyzing a sample, a sample loading system is generally required to perform sample loading operation, and when the sample type is more than one, for example, the sample type is two or more, the sample loading system is quite complex, a plurality of valves are required to be matched, and even an operator is required to perform manual operation to complete sample loading.
The structure of the current sample loading system is complex, and the operation is complex.
Therefore, how to simplify the sample loading system is a technical problem that those skilled in the art are always concerned about.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a rotary valve, a sample loading device and a chromatography experimental system which have simple structures and are easy to operate.
The utility model provides a rotary valve, which comprises a first valve body and a second valve body which can rotate relatively; the first valve body is provided with a connecting surface and a first matching surface, and the connecting surface is provided with a first interface to a seventh interface; the mating surface has first to seventh openings corresponding to the first to seventh ports and communicating through the interior of the first valve body;
the second valve body is provided with a first flow passage, a second flow passage, a third flow passage and a fourth flow passage, and the flow passages are not communicated with each other;
the second valve body can rotate to a first position, a second position, a third position and a fourth position at least relative to the first valve body;
when the second valve body is located at the first position, the first opening is communicated with the fourth opening through the third flow passage; the second opening is communicated with the fifth interface through the first flow passage;
when the second valve body is at the second position, the first opening is communicated with the third opening through the fourth flow passage, and the sixth opening is communicated with the fourth opening through the third flow passage; the second opening is communicated with the fifth opening through the second flow passage;
when the second valve body is in the third position, the second opening communicates with a fourth opening through the third flow passage; the first opening is communicated with a fifth opening through the second flow passage;
when the second valve body is in the fourth position, the second opening communicates with a sixth opening through the first flow passage, and the third opening communicates with a seventh opening through the fourth flow passage.
According to the rotary valve provided by the utility model, the four flow channels are arranged on the second valve body 2, so that at least the works of sample loading, sample ring loading, pipeline waste liquid cleaning and the like of the first power part and the second power part can be realized, the system structure is greatly simplified, manual operation is not needed, and the experimental efficiency is improved.
Optionally, the second valve body has a second mating surface arranged opposite to the first mating surface, and the first mating surface and the second mating surface are in sealed rotation fit; the first flow channel, the second flow channel, the third flow channel and the fourth flow channel are all groove-shaped flow channels arranged on the second matching surface.
Optionally, the third flow channel is a radially extending groove-shaped flow channel, the third flow channel is at least partially located at a rotation center of the second matching surface, the fourth opening portion is located at a rotation center of the first matching surface, and the first flow channel and the second flow channel are at least partially symmetrical with respect to the third flow channel.
Optionally, the first flow channel and the second flow channel are arc-shaped groove sections with the same diameter, and a distance from the outer end of the third flow channel to the rotation center of the second matching surface is greater than or equal to the radius of the arc-shaped groove sections.
Optionally, the fourth flow channel is a linear groove segment, and the extending directions of the fourth flow channel and the third flow channel are perpendicular.
Optionally, when the valve body rotates from the first position to the second position, the counterclockwise rotation angle of the second valve body ranges from 120 ° to 140 °;
or, when the valve body rotates from the first position to the third position, the second valve body rotates anticlockwise by an angle ranging from 80 degrees to 100 degrees;
alternatively, the second valve body rotates counterclockwise by an angle ranging from 30 ° to 50 ° from the first position to the fourth position.
Optionally, the connecting surface is further provided with an eighth interface and a ninth interface, and correspondingly, the first mating surface is provided with an eighth opening and a ninth opening which are communicated with the eighth interface and the ninth interface one by one;
when the second valve body is at the first position, the eighth opening is also communicated with the sixth opening through the fourth flow passage, and the third opening is communicated with the ninth opening through the second flow passage;
the eighth opening also communicates with a seventh opening through the first flow passage when the second valve body is in the second position;
when the second valve body is in the third position, the eighth opening is also communicated with a ninth opening through a fourth flow passage;
the first opening also communicates with a ninth opening through the second flow passage when the second valve body is in the fourth position.
In addition, the utility model also provides a sample loading device, which comprises a first power part, a second power part, a sample ring and the rotary valve, wherein the first power part and the second power part can provide fluid medium flowing power; the outlet of the first power component is connected with the first interface of the rotary valve, the outlet of the second power component is connected with the second interface of the rotary valve, the two ends of the sample ring are respectively connected with the third interface and the sixth interface, the fifth interface and the seventh interface are respectively communicated with an external corresponding waste liquid pipeline, and the fourth interface is used for connecting a downstream chromatography pipeline.
Furthermore, the utility model also provides a sample loading device, which comprises a first power part, a second power part, a sample ring and the rotary valve, wherein the first power part and the second power part can provide fluid medium flow power; the outlet of the first power component is connected with the second interface of the rotary valve, the outlet of the second power component is connected with the first interface of the rotary valve, the two ends of the sample ring are connected with the ninth opening and the seventh opening, the third interface, the fifth interface and the sixth interface are respectively communicated with corresponding waste liquid pipelines outside, and the fourth interface is used for connecting downstream chromatography pipelines.
In addition, the utility model also provides a chromatography experimental system and the sample loading device.
The sample loading device and the chromatography experimental system of the present invention have the rotary valve according to any one of the above embodiments, and therefore the sample loading device and the chromatography experimental system also have the above-described technical effects of the rotary valve.
Drawings
FIG. 1 is a schematic diagram of a rotary valve according to an embodiment of the present invention; the figure shows a perspective view of the main structure of the rotary valve, wherein the dotted line is the main structure of the second valve body;
FIG. 2 is a schematic view of a first valve body of the rotary valve of FIG. 1;
FIG. 3 is a schematic structural view of a second valve body of the rotary valve of FIG. 1;
FIG. 4 is a block diagram of a chromatography experimental system with a first valve body in a first position according to an embodiment of the present invention;
FIG. 5 is a block diagram of a chromatography assay system with a second valve body in a second position according to an embodiment of the utility model;
FIG. 6 is a block diagram of a chromatography assay system with a second valve body in a third position according to an embodiment of the utility model;
FIG. 7 is a block diagram of a chromatography assay system with the second valve body in a fourth position according to an embodiment of the utility model.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
The technical scheme and technical effects of the rotary valve are described continuously by taking the example that the rotary valve is connected to a chromatography experimental system and used as a sample loading valve. Of course, it should be understood by those skilled in the art that the rotary valve provided herein may be applied to other technical fields.
Referring to fig. 1 to 7, fig. 1 is a schematic structural diagram of a rotary valve according to an embodiment of the present invention; there is shown a perspective view of the principal structure of the rotary valve with the dotted line being the principal structure of the second valve body; FIG. 2 is a schematic view of a first valve body of the rotary valve of FIG. 1; FIG. 3 is a schematic structural view of a second valve body of the rotary valve of FIG. 1; FIG. 4 is a block diagram of a chromatography experimental system with a first valve body in a first position according to an embodiment of the present invention; FIG. 5 is a block diagram of a chromatography assay system with a second valve body in a second position according to an embodiment of the utility model; FIG. 6 is a block diagram of a chromatography assay system with a second valve body in a third position according to an embodiment of the utility model; FIG. 7 is a block diagram of a chromatography assay system with the second valve body in a fourth position according to an embodiment of the utility model.
The utility model provides a chromatographic experimental system, which at least comprises a detection device 700, a control valve 500, a chromatographic column 600 and a sample loading device. The specific structure of the detection device and the pumping means is not described herein, but this does not hinder the understanding of the solution herein by the person skilled in the art.
The structure of the detecting device 700 for analyzing the sample liquid is not specifically described herein, and refer to the prior art.
The sample loading device provided by the utility model further comprises a rotary valve, a first power part 100 and a second power part 200. The first power unit 100 and the second power unit 200 are mainly used for providing power for the sample liquid to flow in the pipeline, and the first power unit 100 and the second power unit 200 may be pumps, and the number of the pumps may be determined according to specific situations. For simplicity of description of the technical solution, the present application defines the first power component 100 as a system pump and the second power component 200 as a sample pump. Of course, the number of the first power components 100 and the second power components 200 is not limited to that described herein, and may be in other forms.
The rotary valve provided by the utility model comprises a first valve body 1 and a second valve body 2 which can rotate relatively, namely, the second valve body 2 can rotate around the rotation central axes of the first valve body and the second valve body. Usually, the second valve body 2 can be partially located inside the first valve body 1, that is, the first valve body 1 has an inner cavity, and the second valve body 2 can be partially or completely located in the inner cavity of the first valve body 1, and the first valve body 1 and the second valve body 2 are rotated in a circumferential matching manner. The outer shapes of the first valve body 1 and the second valve body 2 can be designed according to needs, and are not particularly limited herein.
Of course, the second valve body 2 can also be located completely outside the first valve body 1.
In this embodiment, the first valve body 1 has a connecting surface 10 and a first mating surface 11, wherein the connecting surface 10 is provided with a first interface E1, a second interface E2, a third interface E3, a fourth interface E4, a fifth interface E5, a sixth interface E6 and a seventh interface E7, and the first mating surface 11 of the first valve body 1 is provided with a first opening K1, a second opening K2, a third opening K3, a fourth opening K4, a fifth opening K5, a sixth opening K6 and a seventh opening K7 corresponding to the first interface to the seventh interface, and is respectively communicated with the first interface E1, the second interface E2, the third interface E3, the fourth interface E4, the fifth interface E5, the sixth interface E6 and the seventh interface E7 through the inside of the first valve body 1. The passages communicating the ports and the corresponding openings in the first valve body 1 may be the same or different, and the drawings herein show embodiments in which the passages 1a have substantially the same shape.
As can be seen from the above description, the interface on the connection surface 10 is mainly used for connection with external pipes. The connecting surface 10 is typically the outer surface of the first valve body. Each interface may be disposed at a suitable position on the connection surface 10 of the first valve body 1, as long as it can be reliably connected with other components, and the interfaces of each interface unit may be identified for the reliability of the connection pipeline and the improvement of the connection efficiency.
The second valve body 2 is provided with a first flow passage S1, a second flow passage S2, a third flow passage S3, and a fourth flow passage L, which are non-conductive with each other; that is, the flow passages are independent of each other.
The second valve body 2 in the present application is rotatable relative to the first valve body 1 at least to a first position, a second position, a third position and a fourth position.
Taking a rotary valve as a sample loading valve as an example, in the first embodiment, the connection relationship of the components in the sample loading device is as follows: the outlet of the system pump is connected with the first interface of the rotary valve through a pipeline, the outlet of the sample pump is connected with the second interface E2 of the rotary valve through a pipeline, the two ends of the sample ring are respectively connected with the third interface E3 and the sixth interface E6, the fifth interface E5 and the seventh interface E7 are used for being communicated with an external corresponding waste liquid pipeline, and the fourth interface E4 is used for being connected with a downstream chromatography pipeline and is connected with the control valve through a chromatography pipeline.
Referring to fig. 4, when the second valve body 2 is located at the first position, the first opening K1 is communicated with the fourth opening K4 through the third flow passage L1, and the flow path of the fluid is: the system pump, E1-L1-K4-E4-control valve, i.e. the system pump can now act as a sample pump, pumping fluid into the interior of the control valve.
When the second valve body 2 is at the first position, the second opening K2 communicates with the fifth port through the first flow passage S1, and the flow path of the fluid is: the sample pump-E2-K2-S1-K5-E5, so that the sample pump is communicated with the external pipeline connected to the fifth port K5, and at the moment, the sample pump can pump the corresponding liquid to the external pipeline connected to the fifth port K5 along the above flow path, for example, the sample pump can clean the pipeline and the pipeline of which the rotary valve is connected between the second port E2 and the fifth port E5.
In summary, when the second valve body 2 is in the first position, the system pump can be used as a sample loading pump, and the sample pump can be used as a waste liquid cleaning pump.
For a rotary valve provided with the eighth port and the eighth opening communicating through the inside of the first valve body 1, and the ninth port and the ninth opening K9 communicating therewith, when the second valve body 2 is in the first position, the eighth opening K8 also communicates with the sixth opening K6 through the fourth flow passage L2, and the sixth opening K6 communicates with the ninth opening K9 through the second flow passage S2, and the flow paths of the flow passages are: E8-K8-L2-K6-E6-sample ring-E3-K3-S2-K-E9, where the component connected to the eighth interface (e.g., syringe, etc.) can load the sample ring, which further increases the sample ring loading flexibility and facilitates the loading requirements for smaller sample volumes.
Referring to fig. 5, when the second valve body is at the second position, the first opening K1 communicates with the third opening K3 through the fourth flow passage L2, and the sixth opening K6 communicates with the fourth opening K4 through the third flow passage L1, and the flow path of the fluid is: system pump-K1-L2-K3-E3-sample loop-E6-K6-L1-K4-E4-control valve, when system pump is in the loading state to sample loop; meanwhile, the second opening K2 communicates with the fifth opening K5 through the second flow passage S2, and the flow path of the flow passage is: sample pump-E2-K2-S2-K5-E5, such that the sample pump can perform waste cleaning on the channel between the second port and the second opening, the channel between the fifth opening and the fifth port, and the second flow channel.
That is, when the second valve body 2 is in the second position, the system pump can load the sample ring, and the sample pump can also communicate with the waste tube through the rotary valve.
Of course, in the second position, the eighth opening K8 is also communicated with the seventh opening K7 through the first flow channel S12, that is, the pipeline between the eighth port E8 and the seventh port E7 is communicated through the first flow channel S12, so that the external connection member connected to the eighth port E8 and the seventh port E7 can be used to clean the communication path with waste liquid.
Referring to fig. 6, when the second valve body 2 is at the third position, the second opening K2 is communicated with the fourth opening K4 through the third flow passage L1, and the flow path of the flow passage is: the sample pump E2-K2-L1-K4-E4-control valve, the sample pump is communicated with the inlet of the control valve through the rotary valve at the moment, and can provide fluid medium for the control valve, so that the sample loading function is achieved. When the second valve body 2 is in the third position, the first opening K1 is also simultaneously communicated with the fifth opening K5 through the second flow channel S2, that is, at this time, the system pump is communicated with an external pipeline connected to the fifth port E5 through a rotary valve, and the system pump can be used to perform steps such as waste liquid flushing on the flow channel.
With the rotary valve provided with the eighth port and the ninth port, when the second valve body 2 is in the third position, the eighth opening K8 also communicates with the ninth opening K9 through the fourth flow passage L2, functioning as described above.
Referring to fig. 7, when the second valve body is at the fourth position, the second opening K2 is communicated with the sixth opening K6 through the first flow passage S1, and the third opening K3 is communicated with the seventh opening K7 through the fourth flow passage L2, and the flow paths of the flow passages are: the sample pump-E2-K2-S1-K6-E6-sample ring-E3-K3-L2-K7-E7, the sample pump is communicated with the sample ring through the rotary valve to play a role in quantitatively loading the sample ring, and redundant samples flow out from the seventh interface after passing through the rotary valve.
For the rotary valve with the eighth port and the ninth port, when the second valve body 2 is located at the fourth position, the first opening K1 is also communicated with the ninth opening K9 through the second flow channel S2, and the system pump can perform operations such as waste liquid cleaning on the pipeline on the flow channel.
In the second embodiment, the rotary valve can be connected with other components in the sample loading device by exchanging the connection interfaces of the first power unit 100 and the second power unit 200, and the fourth interface is used for connecting with the downstream chromatography pipeline, compared with the first embodiment, the most important difference is that the interfaces of the sample ring and the external waste liquid pipe are different from the above embodiment, the two ends of the sample ring are connected with the ninth opening K9 and the seventh opening K7, and the third interface E3, the fifth interface E5 and the sixth interface E6 are respectively used for communicating with the external waste liquid pipe. The working states of the first power component, the second power component for sample loading, waste liquid cleaning and the like can be still realized by rotating the second valve body 2, and the specific details are not described herein.
Of course, the eighth port K8 may also be connected to a third power unit, which is also capable of loading the sample loop.
According to the rotary valve provided by the utility model, the four flow channels are arranged on the second valve body 2, so that at least the works of sample loading, sample ring loading, waste liquid cleaning of a pipeline and the like of the first power part and the second power part can be realized, the system structure is greatly simplified, manual operation is not needed, and the experiment efficiency is improved.
In addition, the eighth port E8 and the ninth port E9 are added to the first valve body 1, so that the purposes of loading the sample ring and cleaning waste liquid by a third power component can be added, and the use flexibility of the rotary valve is improved.
In one embodiment, the second valve body 2 has a second mating surface 21 disposed opposite to the first mating surface 11, and the first mating surface 11 and the second mating surface 21 are in sealed rotation engagement; the first flow channel S1, the second flow channel S2, the third flow channel S3 and the fourth flow channel L1 are all groove-shaped flow channels which are arranged on the second matching surface 21, the opening of each groove-shaped flow channel faces the first matching surface 11, the groove-shaped flow channel is simple in forming process, and forming cost of the second valve body is reduced. The groove-shaped flow channel can be formed in an injection molding integrated forming mode or a machining mode and the like.
In this embodiment, the third flow channel L1 is a radially extending groove-shaped flow channel, the third flow channel L1 is at least partially located at the rotation center of the second mating surface, and the fourth opening is partially located at the rotation center of the first mating surface, so that the fourth opening and the third flow channel can be always opposite to each other and kept communicated with each other during the rotation. The first flow path S1 and the second flow path S2 are at least partially groove-segment symmetric with respect to the third flow path L1. The drawings show an exemplary embodiment in which the first flow path S1 and the second flow path S2 are symmetrical with respect to the third flow path L1.
In this embodiment, the first flow path S1 and the second flow path S may be arc-shaped groove segments with the same diameter, and the first flow path S1 and the second flow path S2 are spaced apart by a certain distance. The distance from the outer end portion of the third flow passage L1 to the center of rotation of the second mating face is greater than or equal to the radius of the arc-shaped groove section. The distances from the other openings except the fourth opening on the first valve body 1 to the rotation center of the first valve body are substantially equal and are less than or equal to the distance from the outer end part of the third flow passage L1 to the rotation center thereof, which is favorable for the communication between the third flow passage L1 and the corresponding position opening. Of course, each opening may have a long strip structure, thereby improving the reliability of communication.
In this embodiment, the length of arc groove section can be decided according to specific product, and the arc groove section has certain arc length along circumference, all can keep switching on of corresponding connecting line like this in certain rotation angle, can compensate the influence of processing and assembly error, improves the reliability of rotating valve work.
In this embodiment, the fourth flow passage L2 is a straight groove segment, and the extending directions of the fourth flow passage L2 and the third flow passage L1 are perpendicular.
In the above embodiments, the counterclockwise rotation angle of the second valve body ranges from 120 ° to 140 ° when the second valve body rotates from the first position to the second position; any number within the range is possible, such as 120 °, 135 °, 140 °, or the like.
The second valve body rotates from the first position to the third position in a counterclockwise angle range of 80-100 degrees; may be any value within the range, such as 80, 90, or 100, and the like
The second valve body rotates in a range of 30 DEG to 50 DEG counterclockwise from the first position to the fourth position. Any number within the range is possible, such as 30 °, 55 °, or 50 °, among others.
The above rotation angle can be determined according to the position of each flow channel and opening, which is not listed herein.
In the above embodiments, the first port E1 to the ninth port E9 of the first valve body are located on the same cross section of the first valve body, which is convenient for processing, and of course, the first port E1 to the ninth port E9 may also be located on different cross sections of the first valve body, so that the connection pipe may be identified for convenience.
As mentioned above, the chromatography experimental system can also comprise at least one chromatography column and any one of the above-mentioned loading devices, the working ports of each chromatography column are connected with the ports of the control valve, and the control valve can realize that each chromatography column is in the bypass state, the positive flow state and the reverse flow state. The specific structure of the control valve is not described herein in greater detail.
The chromatographic test system and the sample loading device of the present invention have the above-described rotary valve according to any of the above-described embodiments, and therefore the chromatographic test system and the sample loading device also have the above-described technical effects of the above-described rotary valve.
The rotary valve, the sample loading device and the chromatography experimental system provided by the utility model are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A rotary valve characterized by comprising a first valve body and a second valve body which are relatively rotatable; the first valve body is provided with a connecting surface and a first matching surface, and the connecting surface is provided with a first interface to a seventh interface; the first matching surface is provided with a first opening to a seventh opening which correspond to the first interface to the seventh interface and are communicated through the interior of the first valve body;
the second valve body is provided with a first flow passage, a second flow passage, a third flow passage and a fourth flow passage, and the flow passages are not communicated with each other;
the second valve body can rotate to a first position, a second position, a third position and a fourth position at least relative to the first valve body;
when the second valve body is located at the first position, the first opening is communicated with the fourth opening through the third flow passage; the second opening is communicated with the fifth interface through the first flow passage;
when the second valve body is at the second position, the first opening is communicated with the third opening through the fourth flow passage, and the sixth opening is communicated with the fourth opening through the third flow passage; the second opening is communicated with the fifth opening through the second flow passage;
when the second valve body is in the third position, the second opening communicates with a fourth opening through the third flow passage; the first opening is communicated with a fifth opening through the second flow passage;
when the second valve body is in the fourth position, the second opening communicates with a sixth opening through the first flow passage, and the third opening communicates with a seventh opening through the fourth flow passage.
2. The rotary valve of claim 1, wherein the second valve body has a second mating surface disposed opposite the first mating surface, the first mating surface and the second mating surface being in sealing rotational engagement; the first flow channel, the second flow channel, the third flow channel and the fourth flow channel are all groove-shaped flow channels arranged on the second matching surface.
3. A rotary valve as claimed in claim 2, wherein said third flow passage is a radially extending channel-type flow passage, said third flow passage being at least partially located at a center of rotation of said second mating surface, said fourth opening portion being located at a center of rotation of said first mating surface, said first flow passage and said second flow passage being at least partially symmetrical about said third flow passage.
4. The rotary valve of claim 3, wherein the first and second flow passages are arcuate groove segments of the same diameter, and the distance from the outer end of the third flow passage to the center of rotation of the second mating surface is greater than or equal to the radius of the arcuate groove segments.
5. A rotary valve as claimed in claim 3, wherein said fourth flow passage is a straight channel section, and both said fourth flow passage and said third flow passage extend in a perpendicular direction.
6. The rotary valve of claim 1 wherein the counterclockwise rotation of the second valve body from the first position to the second position is in the range of 120 ° to 140 °;
or, when the valve body rotates from the first position to the third position, the second valve body rotates anticlockwise by an angle ranging from 80 degrees to 100 degrees;
alternatively, the second valve body rotates counterclockwise by an angle ranging from 30 ° to 50 ° from the first position to the fourth position.
7. A rotary valve according to any of claims 1 to 6, wherein the connecting surface is further provided with an eighth port and a ninth port, and correspondingly the first mating surface is provided with an eighth opening and a ninth opening in one-to-one communication with the eighth port and the ninth port;
when the second valve body is at the first position, the eighth opening is communicated with the sixth opening through the fourth flow passage, and the third opening is communicated with the ninth opening through the second flow passage;
the eighth opening also communicates with a seventh opening through the first flow passage when the second valve body is in the second position;
when the second valve body is in the third position, the eighth opening is also communicated with a ninth opening through a fourth flow passage;
the first opening also communicates with a ninth opening through the second flow passage when the second valve body is in the fourth position.
8. A sample loading device comprising a first power component, a second power component, a sample ring, and a rotary valve according to any one of claims 1 to 7, wherein the first power component and the second power component are each capable of providing fluid medium flow power; the outlet of the first power component is connected with the first interface of the rotary valve, the outlet of the second power component is connected with the second interface of the rotary valve, the two ends of the sample ring are respectively connected with the third interface and the sixth interface, the fifth interface and the seventh interface are respectively communicated with an external corresponding waste liquid pipeline, and the fourth interface is used for connecting a downstream chromatography pipeline.
9. A sample loading device comprising a first power component, a second power component, a sample ring, and the rotary valve of claim 7, wherein the first power component and the second power component are each capable of providing fluid medium flow power; the outlet of the first power component is connected with the second interface of the rotary valve, the outlet of the second power component is connected with the first interface of the rotary valve, the two ends of the sample ring are connected with the ninth opening and the seventh opening, the third interface, the fifth interface and the sixth interface are respectively communicated with an external corresponding waste liquid pipeline, and the fourth interface is used for connecting a downstream chromatography pipeline.
10. A chromatographic assay system comprising the loading device of claim 8 or 9.
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| CN202123433557.9U CN216900398U (en) | 2021-12-30 | 2021-12-30 | Rotary valve, sample loading device and chromatography experimental system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184723A (en) * | 2021-12-30 | 2022-03-15 | 泰渡生物科技(苏州)有限公司 | Rotary valve, sample loading device and chromatography experimental system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184723A (en) * | 2021-12-30 | 2022-03-15 | 泰渡生物科技(苏州)有限公司 | Rotary valve, sample loading device and chromatography experimental system |
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