CN220188435U - Automatic mobile phase replacing device of liquid chromatograph - Google Patents
Automatic mobile phase replacing device of liquid chromatograph Download PDFInfo
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- CN220188435U CN220188435U CN202321428266.7U CN202321428266U CN220188435U CN 220188435 U CN220188435 U CN 220188435U CN 202321428266 U CN202321428266 U CN 202321428266U CN 220188435 U CN220188435 U CN 220188435U
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- mobile phase
- level sensor
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- 239000007788 liquid Substances 0.000 title claims abstract description 134
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 114
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims abstract description 102
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 230000001502 supplementing effect Effects 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims 1
- 239000012266 salt solution Substances 0.000 description 15
- 239000000243 solution Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
The utility model discloses an automatic mobile phase replacement device of a liquid chromatograph, which comprises a mobile phase container, wherein the mobile phase container is provided with a mobile low liquid level sensor and a mobile high liquid level sensor, the mobile phase container is communicated with a storage container through a liquid inlet pipe, a delivery pump is arranged on the liquid inlet pipe, the storage container is communicated with a configuration container through a supplementing pipe, and the supplementing pipe is provided with a supplementing pump; the configuration container is communicated with a methanol storage tank, an acetonitrile storage tank, a saline solution storage tank and a water storage tank through pipelines, the tail ends of the pipelines are detachably connected with a filtering device, and a methanol electric valve, a methanol pump and a methanol flowmeter are sequentially arranged on the pipelines of the methanol storage tank along the conveying direction of the pipelines. Can be automatically supplemented without manual operation, and the degree of automation is improved.
Description
Technical Field
The utility model relates to the technical field of liquid chromatographs, in particular to an automatic mobile phase replacing device of a liquid chromatograph.
Background
There is no automatic mobile phase replacing device in the market at present. In the detection of the liquid chromatograph, due to improper calculation of the volume, the phenomenon of running out of the mobile phase is easy to occur, the influence on the pump is reflected in that continuous piston movement can cause serious friction and heating, the sealing ring is excessively worn, the influence on the chromatographic column is caused by collapse of internal packing, and the chromatographic column is scrapped.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art, and particularly creatively provides an automatic mobile phase replacement device for a liquid chromatograph, which can be automatically supplemented without manual operation, thereby improving the degree of automation.
In order to achieve the above purpose, the utility model provides an automatic mobile phase replacement device of a liquid chromatograph, comprising a mobile phase container, wherein the mobile phase container is provided with a mobile low liquid level sensor and a mobile high liquid level sensor, the liquid level output end of the mobile low liquid level sensor is connected with the mobile low liquid level signal input end of a singlechip, the liquid level output end of the mobile high liquid level sensor is connected with the mobile high liquid level signal input end of the singlechip, the mobile phase container is communicated with a storage container through a liquid inlet pipe, a delivery pump is arranged on the liquid inlet pipe, the drive input end of the delivery pump is connected with the delivery drive output end of the singlechip, the storage container is provided with a storage low liquid level sensor and a storage high liquid level sensor, the liquid level output end of the storage low liquid level sensor is connected with the storage low liquid level signal input end of the singlechip, and the liquid level output end of the storage high liquid level sensor is connected with the storage high liquid level signal input end of the singlechip;
the storage container is communicated with the configuration container through a supplementing pipe, a supplementing pump is arranged on the supplementing pipe, a driving input end of the supplementing pump is connected with a supplementing driving output end of the singlechip, the configuration container is provided with a stirring device, a configuration low liquid level sensor and a configuration high liquid level sensor, a liquid level output end of the configuration low liquid level sensor is connected with a configuration low liquid level signal input end of the singlechip, and a liquid level output end of the configuration high liquid level sensor is connected with a configuration high liquid level signal input end of the singlechip;
the configuration container is communicated with mobile phase configuration liquid storage tanks through pipelines, each mobile phase configuration liquid storage tank is sequentially provided with an electric valve, a pump and a flowmeter along the conveying direction of each mobile phase configuration liquid storage tank, the tail ends of the pipelines are detachably connected with a filtering device, all electric valve driving input ends are connected with a singlechip valve driving output end, all pump driving input ends are connected with a singlechip pump driving output end, and all flowmeter signal output ends are connected with a singlechip flow signal input end.
In the scheme, the method comprises the following steps: the mobile phase configuration liquid storage tank comprises a methanol storage tank, an acetonitrile storage tank, a saline solution storage tank and a water storage tank, wherein a methanol electric valve, a methanol pump and a methanol flowmeter are sequentially arranged on a pipeline of the methanol storage tank along the conveying direction of the pipeline, the detection output end of the methanol flowmeter is connected with the methanol flow signal input end of the singlechip, the driving input end of the methanol electric valve is connected with the driving output end of the methanol valve of the singlechip, and the driving input end of the methanol pump is connected with the methanol conveying driving output end of the singlechip;
an acetonitrile electric valve, an acetonitrile pump and an acetonitrile flowmeter are sequentially arranged on a pipeline of the acetonitrile storage tank along the conveying direction of the pipeline, the detection output end of the acetonitrile flowmeter is connected with the input end of an acetonitrile flow signal of the single-chip microcomputer, the driving input end of the acetonitrile electric valve is connected with the driving output end of the acetonitrile valve of the single-chip microcomputer, and the driving input end of the acetonitrile pump is connected with the acetonitrile conveying driving output end of the single-chip microcomputer;
the salt solution electric valve, the salt solution pump and the salt solution flowmeter are sequentially arranged on a pipeline of the salt solution storage tank along the conveying direction of the salt solution electric valve, the detection output end of the salt solution flowmeter is connected with the salt solution flow signal input end of the single-chip microcomputer, the driving input end of the salt solution electric valve is connected with the driving output end of the salt solution valve of the single-chip microcomputer, and the driving input end of the salt solution pump is connected with the salt solution conveying driving output end of the single-chip microcomputer;
the water storage tank is characterized in that a water electric valve, a water pump and a water flow meter are sequentially arranged on a pipeline of the water storage tank along the conveying direction of the pipeline, a detection output end of the water flow meter is connected with a water flow signal input end of the single-chip microcomputer, a driving input end of the water electric valve is connected with a driving output end of the water valve of the single-chip microcomputer, and a driving input end of the water pump is connected with a water conveying driving output end of the single-chip microcomputer.
In the scheme, the method comprises the following steps: the filter device comprises a feeding pipe, threads are arranged on the outer side wall of the starting end of the feeding pipe, internal threads are arranged on the inner side wall of the tail end of the pipeline, the feeding pipe and the pipeline are connected together through threads, the threaded connection is adopted, the assembly efficiency is improved, and the disassembly is simple.
In the scheme, the method comprises the following steps: the filter device comprises a shell, be equipped with a plurality of filtration pores on the shell, the multilayer filter media has been laid in proper order to interior from outside on the casing inside wall, and the cavity is left at the middle part of casing, the inlet pipe stretches into in the cavity, can be to dispersing the form and filter, improves filterable speed, ensures the filter effect.
In the scheme, the method comprises the following steps: the low liquid level sensor that flows, the high liquid level sensor that flows, store low liquid level sensor, store high liquid level sensor, dispose low liquid level sensor and dispose high liquid level sensor and be photoelectric type liquid level sensor, and all set up outside corresponding container, avoid being corroded by the solution, can ensure simultaneously again to the detection of solution liquid level.
In the scheme, the method comprises the following steps: the initial ends of the supplementing pipe and the liquid inlet pipe are also provided with a filtering device, so that the filtering effect is further ensured.
In the scheme, the method comprises the following steps: the stirring device is an airflow vortex stirring device, the stirring effect is good, the stirring device cannot be corroded, and the service life is prolonged.
In summary, the beneficial effects of the utility model are as follows: the liquid can be automatically supplemented and configured, the automation is improved, the labor cost is saved, the working efficiency is improved, and unmanned management is realized as much as possible. The solution can be automatically configured by the arranged configuration container and the pipeline connected with the configuration container, so that the solution is configured manually, the proportioning accuracy is high, and the labor cost is saved. The storage container is arranged as a transit container for replenishing the solution to be replenished according to the required volume of the mobile phase container. The filter equipment that can dismantle the setting can take off it and regularly wash, improves the filter effect. The stirring device can stir the solution added in the configuration container, and the stirring device is uniform in mixing and meets the requirements.
Drawings
FIG. 1 is a system diagram of the present utility model;
fig. 2 is a schematic structural view of the filtering apparatus.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
As shown in fig. 1 and 2, an automatic mobile phase exchange device for a liquid chromatograph includes a mobile phase container 1, wherein the mobile phase container 1 is provided with a low mobile liquid level sensor 1b and a high mobile liquid level sensor 1a. The liquid level output end of the flow low liquid level sensor 1b is connected with the flow low liquid level signal input end of the single chip microcomputer 8, and the liquid level output end of the flow high liquid level sensor 1a is connected with the flow high liquid level signal input end of the single chip microcomputer 8. The mobile phase container 1 is communicated with the storage container 2 through a liquid inlet pipe 1c, a conveying pump 1d is arranged on the liquid inlet pipe 1c, and a driving input end of the conveying pump 1d is connected with a conveying driving output end of the singlechip 8.
The storage container 2 is provided with a storage low liquid level sensor 2b and a storage high liquid level sensor 2a, wherein the liquid level output end of the storage low liquid level sensor 2b is connected with the storage low liquid level signal input end of the single chip microcomputer 8, and the liquid level output end of the storage high liquid level sensor 2a is connected with the storage high liquid level signal input end of the single chip microcomputer 8.
The storage container 2 communicates with the arrangement container 3 through a replenishment pipe 2c, and a replenishment pump 2d is provided in the replenishment pipe 2 c. The driving input end of the supplementary pump 2d is connected with the supplementary driving output end of the singlechip 8, and the configuration container 3 is provided with a stirring device 10, a configuration low liquid level sensor 3b and a configuration high liquid level sensor 3a. The liquid level output end of the configuration low liquid level sensor 3b is connected with the single chip microcomputer 8 to configure a low liquid level signal input end, and the liquid level output end of the configuration high liquid level sensor 3a is connected with the single chip microcomputer 8 to configure a high liquid level signal input end. Wherein, agitating unit 10 is air current vortex agitating unit 10, and stirring effect is good, can not corrode the device again, improves life.
The configuration container 3 is communicated with a plurality of mobile phase configuration liquid storage tanks through pipelines, the mobile phase configuration liquid storage tanks comprise, but are not limited to, a methanol storage tank 4, an acetonitrile storage tank 5, a saline solution storage tank 6 and a water storage tank 7, and the tail ends of the pipelines are detachably connected with a filtering device 9. The pipeline of the methanol storage tank 4 is sequentially provided with a methanol electric valve 4a, a methanol pump 4b and a methanol flowmeter 4c along the conveying direction. The detection output end of the methanol flowmeter 4c is connected with the methanol flow signal input end of the single-chip microcomputer 8, the driving input end of the methanol electric valve 4a is connected with the driving output end of the methanol valve of the single-chip microcomputer 8, and the driving input end of the methanol pump 4b is connected with the methanol conveying driving output end of the single-chip microcomputer 8. And the volume of both the disposition container 3 and the storage container 2 is larger than the volume of the mobile phase container 1.
An acetonitrile electric valve 5a, an acetonitrile pump 5b and an acetonitrile flowmeter 5c are sequentially arranged on a pipeline of the acetonitrile storage tank 5 along the conveying direction. The detection output end of the acetonitrile flowmeter 5c is connected with the input end of an acetonitrile flow signal of the single-chip microcomputer 8, the driving input end of the acetonitrile electric valve 5a is connected with the driving output end of the acetonitrile valve of the single-chip microcomputer 8, and the driving input end of the acetonitrile pump 5b is connected with the driving output end of the acetonitrile conveying of the single-chip microcomputer 8.
The salt solution electric valve 6a, the salt solution pump 6b and the salt solution flowmeter 6c are sequentially arranged on the pipeline of the salt solution storage tank 6 along the conveying direction. The detection output end of the saline solution flowmeter 6c is connected with the saline solution flow signal input end of the single-chip microcomputer 8, the driving input end of the saline solution electric valve 6a is connected with the driving output end of the saline solution valve of the single-chip microcomputer 8, and the driving input end of the saline solution pump 6b is connected with the saline solution conveying driving output end of the single-chip microcomputer 8.
The pipeline of the water storage tank 7 is sequentially provided with a water electric valve 7a, a water pump 7b and a water flow meter 7c along the conveying direction. The detection output end of the water flowmeter 7c is connected with the water flow signal input end of the single chip microcomputer 8, the driving input end of the water valve 7a is connected with the driving output end of the water valve of the single chip microcomputer 8, and the driving input end of the water pump 7b is connected with the water conveying driving output end of the single chip microcomputer 8.
Wherein, filter equipment 9 includes casing and inlet pipe 9a, is equipped with the screw thread on the lateral wall at inlet pipe 9a top, is equipped with the internal thread on the inside wall at pipeline end, and inlet pipe 9a passes through threaded connection with the pipeline together, adopts threaded connection, improves assembly efficiency, and it is simple to dismantle. Be equipped with a plurality of filtration pore 9b on the casing, laid the multilayer filter media in proper order from outside to interior on the casing inside wall, and leave the cavity in the middle part of casing, in the cavity was stretched to the inlet pipe 9a end, can be to dispersing the form and filter, improved filterable speed, guarantee filter effect.
In order to further ensure the filtering effect, the filtering is more comprehensive, and the starting ends of the supplementing pipe 2c and the liquid inlet pipe 1c are also provided with a filtering device 9.
The low liquid level sensor 1b flows, the high liquid level sensor 1a flows, the low liquid level sensor 2b stores, the high liquid level sensor 2a stores, the low liquid level sensor 3b is configured and the high liquid level sensor 3a is configured to be photoelectric liquid level sensors, and the photoelectric liquid level sensors are arranged outside corresponding containers, so that corrosion caused by solution is avoided, and meanwhile, the detection of the liquid level of the solution can be guaranteed.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. An automatic mobile phase replacement device of a liquid chromatograph, which is characterized in that: the mobile phase container (1) is provided with a low-flow liquid level sensor (1 b) and a high-flow liquid level sensor (1 a), the liquid level output end of the low-flow liquid level sensor (1 b) is connected with the low-flow liquid level signal input end of a single chip microcomputer (8), the liquid level output end of the high-flow liquid level sensor (1 a) is connected with the high-flow liquid level signal input end of the single chip microcomputer (8), the mobile phase container (1) is communicated with a storage container (2) through a liquid inlet pipe (1 c), a conveying pump (1 d) is arranged on the liquid inlet pipe (1 c), the driving input end of the conveying pump (1 d) is connected with the conveying driving output end of the single chip microcomputer (8), the storage container (2) is provided with a low-storage liquid level sensor (2 b) and a high-storage liquid level sensor (2 a), the liquid level output end of the low-storage sensor (2 b) is connected with the low-level signal input end of the single chip microcomputer (8), and the liquid level output end of the high-storage liquid level sensor (2 a) is connected with the high-level signal input end of the single chip microcomputer (8);
the storage container (2) is communicated with the configuration container (3) through a supplementing pipe (2 c), a supplementing pump (2 d) is arranged on the supplementing pipe (2 c), a driving input end of the supplementing pump (2 d) is connected with a supplementing driving output end of the single chip microcomputer (8), the configuration container (3) is provided with a stirring device (10), a configuration low liquid level sensor (3 b) and a configuration high liquid level sensor (3 a), a liquid level output end of the configuration low liquid level sensor (3 b) is connected with a configuration low liquid level signal input end of the single chip microcomputer (8), and a liquid level output end of the configuration high liquid level sensor (3 a) is connected with a configuration high liquid level signal input end of the single chip microcomputer (8);
the configuration container (3) is communicated with mobile phase configuration liquid storage tanks through pipelines, each mobile phase configuration liquid storage tank is sequentially provided with an electric valve, a pump and a flowmeter along the conveying direction of each mobile phase configuration liquid storage tank, the tail ends of the pipelines are detachably connected with a filtering device (9), all electric valve driving input ends are connected with a singlechip valve driving output end, all pump driving input ends are connected with a singlechip pump driving output end, and all flowmeter signal output ends are connected with a singlechip flow signal input end.
2. The automatic mobile phase replacement device for a liquid chromatograph according to claim 1, wherein: the mobile phase configuration liquid storage tank comprises a methanol storage tank (4), an acetonitrile storage tank (5), a saline solution storage tank (6) and a water storage tank (7), wherein a methanol electric valve (4 a), a methanol pump (4 b) and a methanol flowmeter (4 c) are sequentially arranged on a pipeline of the methanol storage tank (4) along the conveying direction of the pipeline, a detection output end of the methanol flowmeter (4 c) is connected with a methanol flow signal input end of a singlechip (8), a driving input end of the methanol electric valve (4 a) is connected with a methanol valve driving output end of the singlechip (8), and a driving input end of the methanol pump (4 b) is connected with a methanol conveying driving output end of the singlechip (8);
an acetonitrile electric valve (5 a), an acetonitrile pump (5 b) and an acetonitrile flowmeter (5 c) are sequentially arranged on a pipeline of the acetonitrile storage tank (5) along the conveying direction of the pipeline, the detection output end of the acetonitrile flowmeter (5 c) is connected with the acetonitrile flow signal input end of the single chip microcomputer (8), the driving input end of the acetonitrile electric valve (5 a) is connected with the driving output end of the acetonitrile valve of the single chip microcomputer (8), and the driving input end of the acetonitrile pump (5 b) is connected with the acetonitrile conveying driving output end of the single chip microcomputer (8);
a saline solution electric valve (6 a), a saline solution pump (6 b) and a saline solution flowmeter (6 c) are sequentially arranged on a pipeline of the saline solution storage tank (6) along the conveying direction, the detection output end of the saline solution flowmeter (6 c) is connected with the saline solution flow signal input end of the single chip microcomputer (8), the driving input end of the saline solution electric valve (6 a) is connected with the driving output end of the saline solution valve of the single chip microcomputer (8), and the driving input end of the saline solution pump (6 b) is connected with the saline solution conveying driving output end of the single chip microcomputer (8);
the water storage tank is characterized in that a water electric valve (7 a), a water pump (7 b) and a water flow meter (7 c) are sequentially arranged on a pipeline of the water storage tank (7) along the conveying direction of the pipeline, a detection output end of the water flow meter (7 c) is connected with a water flow signal input end of the single chip microcomputer (8), a driving input end of the water electric valve (7 a) is connected with a water valve driving output end of the single chip microcomputer (8), and a driving input end of the water pump (7 b) is connected with a water conveying driving output end of the single chip microcomputer (8).
3. The automatic mobile phase replacement device for a liquid chromatograph according to claim 1, wherein: the filtering device (9) comprises a feeding pipe (9 a), threads are arranged on the outer side wall of the starting end of the feeding pipe (9 a), internal threads are arranged on the inner side wall of the tail end of the pipeline, and the feeding pipe (9 a) is connected with the pipeline through threads.
4. A mobile phase automatic changing device for liquid chromatograph according to claim 3, characterized in that: the filtering device (9) comprises a shell, a plurality of filtering holes (9 b) are formed in the shell, a plurality of layers of filtering materials are sequentially paved on the inner side wall of the shell from outside to inside, a cavity is reserved in the middle of the shell, and the feeding pipe (9 a) stretches into the cavity.
5. The automatic mobile phase replacement device for a liquid chromatograph according to claim 1, wherein: the low liquid level sensor (1 b) flows, the high liquid level sensor (1 a) flows, the low liquid level sensor (2 b) is stored, the high liquid level sensor (2 a) is stored, the low liquid level sensor (3 b) is configured, and the high liquid level sensor (3 a) is configured, is all photoelectric liquid level sensors, and is arranged outside the corresponding container.
6. A mobile phase automatic changing device for liquid chromatograph according to claim 3, characterized in that: the starting ends of the supplementing pipe (2 c) and the liquid inlet pipe (1 c) are also provided with a filtering device (9).
7. The automatic mobile phase replacement device for a liquid chromatograph according to claim 1, wherein: the volume of the configuration container (3) and the storage container (2) is larger than that of the mobile phase container (1).
8. The automatic mobile phase replacement device for a liquid chromatograph according to claim 1, wherein: the stirring device (10) is an airflow vortex type stirring device (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321428266.7U CN220188435U (en) | 2023-06-05 | 2023-06-05 | Automatic mobile phase replacing device of liquid chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321428266.7U CN220188435U (en) | 2023-06-05 | 2023-06-05 | Automatic mobile phase replacing device of liquid chromatograph |
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| Publication Number | Publication Date |
|---|---|
| CN220188435U true CN220188435U (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321428266.7U Active CN220188435U (en) | 2023-06-05 | 2023-06-05 | Automatic mobile phase replacing device of liquid chromatograph |
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| CN (1) | CN220188435U (en) |
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2023
- 2023-06-05 CN CN202321428266.7U patent/CN220188435U/en active Active
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