Liquid chromatograph-mass spectrometer waste liquid recovery device

By combining a multi-rotating rod reverse stirring design with a diverter nozzle, the problem of detergent dispersion in the waste liquid recovery device of the liquid chromatography-mass spectrometry (LC-MS) instrument was solved, achieving rapid and automated waste liquid treatment.

CN223915195UActive Publication Date: 2026-02-17SUZHOU XUHUI TESTING CO LTD

Patent Information

Application Number
CN202422565388.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-23
Publication Date
2026-02-17
Estimated Expiration
2034-10-23

AI Technical Summary

Technical Problem

Existing liquid chromatography-mass spectrometry (LC-MS) waste liquid recovery devices can only stir in one direction, which prevents the cleaning agent from being dispersed when it enters the mixing tank, resulting in a slow waste liquid treatment speed.

Method used

It adopts a design with multiple rotating rods and stirring rods rotating in opposite directions, combined with a diversion pipe and nozzle to disperse the cleaning agent into the mixing tank, and achieves rapid mixing of waste liquid and cleaning agent through a drive component. It is equipped with a liquid level sensor and an alarm to facilitate timely addition of cleaning agent.

Benefits of technology

It enables rapid mixing of cleaning agents and waste liquid, improving waste liquid treatment efficiency, and ensures automation and timeliness of the treatment process through level sensors and alarms.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a liquid chromatograph-mass spectrometer waste liquid recovery device which comprises a base, a liquid chromatograph-mass spectrometer main body is arranged at the top of the base, a first conveying assembly is arranged on the left side of the liquid chromatograph-mass spectrometer main body, and a stirring barrel is arranged on the left side of the liquid chromatograph-mass spectrometer main body through the first conveying assembly; a driving assembly is arranged at the top of the stirring barrel, a rotating rod is arranged in the stirring barrel through the driving assembly, a stirring rod is fixedly installed on the surface of the rotating rod, a supporting plate is fixedly installed on the left side of the stirring barrel, a storage box is fixedly installed at the top of the supporting plate, and a second conveying assembly is arranged in the stirring barrel. A shunting pipe is arranged on the right side of the stirring barrel through a second conveying assembly, and a spray head is fixedly mounted at the bottom of the shunting pipe. The cleaning agent can enter the waste liquid dispersedly, and the waste liquid and the cleaning agent are stirred in multiple directions, so that the cleaning agent can be mixed with the waste liquid more quickly, and the waste liquid can be treated more quickly.
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Description

Technical Field

[0001] This utility model relates to the field of instrument and equipment technology, and in particular to a waste liquid recovery device for a liquid chromatography-mass spectrometry (LC-MS) instrument. Background Technology

[0002] Liquid chromatography-mass spectrometry (LC-MS) is an analytical instrument that combines liquid chromatography and mass spectrometry. It leverages the high separation capability of liquid chromatography with the high selectivity and sensitivity of mass spectrometry to analyze and detect complex samples. LC-MS separates the sample from the mobile phase in the mass spectrometer and ionizes it. Then, the mass spectrometer separates the ion fragments according to their mass number, ultimately producing a mass spectrum.

[0003] Liquid chromatography-mass spectrometry (LC-MS) is mainly used in drug metabolism and pharmacokinetics research, clinical pharmacology research, natural drug development research, newborn screening, identification of proteins and peptides, residue analysis, toxicology analysis, environmental analysis, as well as in industries such as public security, environmental protection, food, tap water, and health and epidemic prevention.

[0004] Chinese patent application publication number CN217093131U discloses a waste liquid recovery device for a liquid chromatography-mass spectrometry (LC-MS) instrument. The device includes an LC-MS instrument body with a first inlet at its left end. One end of the first inlet is connected to a water pump, and one end of the water pump is connected to a water pipe. One end of the water pipe is connected to a water inlet. A base is installed at the bottom of a support column, and a water outlet is located at the bottom of a mixing tank. One end of the water outlet is connected to a second electrically controlled valve, and a flexible hose is attached to the bottom of the second electrically controlled valve. Although this device can recover and treat waste liquid, it can only stir in one direction, and the cleaning agent enters the mixing tank in one place and cannot disperse throughout the tank, resulting in a slow waste liquid treatment speed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a waste liquid recovery device for a liquid chromatography-mass spectrometry (LC-MS) instrument, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A liquid chromatography-mass spectrometry (LC-MS) waste liquid recovery device includes a base, a LC-MS main body mounted on top of the base, a first conveying assembly on the left side of the LC-MS main body, a stirring tank mounted on the left side of the LC-MS main body via the first conveying assembly, a driving assembly on top of the stirring tank, and multiple rotating rods mounted inside the stirring tank via the driving assembly. A stirring rod is fixedly mounted on the surface of each rotating rod. A support plate is fixedly mounted on the left side of the stirring tank, and a storage tank is fixedly mounted on top of the support plate. An inlet is located on top of the storage tank. A second conveying assembly is located inside the stirring tank, and a diversion pipe is mounted on the right side of the stirring tank via the second conveying assembly, located inside the stirring tank. A nozzle is fixedly mounted at the bottom of the diversion pipe. A transparent plate is fixedly mounted on the left side of the storage tank, an adjusting assembly on top of the storage tank, a level sensor mounted inside the storage tank via the adjusting assembly, an alarm fixedly mounted on the left side of the storage tank, and a controller fixedly mounted on the front of the storage tank.

[0008] Preferably, the first delivery component includes a first infusion tube disposed on the left side of the main body of the liquid chromatography-mass spectrometry instrument, a first delivery pump is fixedly installed at the left end of the first infusion tube, a second infusion tube is fixedly installed on the left side of the first delivery pump, and the second infusion tube is connected to the stirring tank.

[0009] Preferably, the drive assembly includes a drive motor disposed on the top of the mixing tank, a rotating shaft fixedly mounted on the output end of the drive motor, a first gear fixedly mounted on the surface of the rotating shaft, a second gear meshing on the surface of the first gear, and the second gear being fixedly connected to the rotating rod.

[0010] Preferably, the second conveying assembly includes a suction pipe disposed inside the mixing tank, a second conveying pump is fixedly installed at the top of the suction pipe, and a connecting pipe is fixedly installed at the top of the second conveying pump, the connecting pipe being connected to the diversion pipe.

[0011] Preferably, the adjustment assembly includes a mounting plate disposed on the top of the storage tank, an electric push rod fixedly mounted on the inner wall of the mounting plate, a movable rod fixedly mounted on the output end of the electric push rod, the movable rod being slidably connected to the storage tank, and the movable rod being fixedly connected to the liquid level sensor.

[0012] Preferably, a support column is fixedly installed at the bottom of the mixing tank, the support column is fixedly connected to the base, and there are multiple support columns.

[0013] Preferably, a drain pipe is fixedly installed at the bottom of the mixing tank, and a control valve is provided on the drain pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The liquid chromatography-mass spectrometry (LC-MS) waste liquid recovery device uses a first conveying component to transport the waste liquid from the LC-MS main body to a mixing tank, and a second conveying component to transport the cleaning agent from the storage tank to a distribution pipe. After being split by the distribution pipe, the waste liquid is dispersed and sprayed into the mixing tank from the nozzle. At the same time, the drive component causes the rotating rod to rotate in the opposite direction, which in turn causes the stirring rod to rotate in the opposite direction, thus stirring the waste liquid and cleaning agent in the mixing tank. This allows the cleaning agent to mix with the waste liquid more quickly, thereby facilitating faster waste liquid treatment.

[0016] 2. The liquid level sensor of this liquid chromatography-mass spectrometry (LC-MS) waste liquid recovery device triggers an alarm when the liquid level sensor fails to detect the liquid level, thus reminding staff to add cleaning agent in a timely manner. The height of the liquid level sensor can be adjusted by the adjustment component, which allows for better setting of the remaining amount of cleaning agent in the storage tank when the alarm is triggered. Attached Figure Description

[0017] Figure 1 This is a three-dimensional perspective view of the present invention;

[0018] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a right sectional view of the structure of this utility model;

[0021] Figure 5 This is a schematic diagram of a partial structure of the present invention.

[0022] In the diagram: 1. Base; 2. Main body of the LC-MS instrument; 3. First infusion tube; 4. First delivery pump; 5. Second infusion tube; 6. Stirring tank; 7. Drive motor; 8. Rotating shaft; 9. First gear; 10. Second gear; 11. Rotating rod; 12. Stirring rod; 13. Support plate; 14. Storage tank; 15. Liquid inlet; 16. Suction tube; 17. Second delivery pump; 18. Connecting pipe; 19. Diverter pipe; 20. Nozzle; 21. Transparent plate; 22. Mounting plate; 23. Electric push rod; 24. Movable rod; 25. Liquid level sensor; 26. Alarm; 27. Controller; 28. Support column; 29. ​​Drain pipe; 30. Control valve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1-5 A liquid chromatography-mass spectrometry (LC-MS) waste liquid recovery device includes a base 1, a LC-MS main body 2 on the top of the base 1, a first conveying assembly on the left side of the LC-MS main body 2, and a stirring tank 6 on the left side of the LC-MS main body 2 via the first conveying assembly. Support columns 28 are fixedly installed at the bottom of the stirring tank 6 and are fixedly connected to the base 1. Multiple support columns 28 are provided to ensure stable support of the stirring tank 6. The first conveying assembly includes a first infusion pipe 3 located on the left side of the LC-MS main body 2, with a first... A first transfer pump 4 has a second infusion pipe 5 fixedly installed on its left side. The second infusion pipe 5 is connected to a stirring tank 6 to facilitate the transfer of waste liquid from the main body 2 of the liquid chromatography-mass spectrometry instrument to the stirring tank 6. A drive assembly is provided on the top of the stirring tank 6. A rotating rod 11 is provided inside the stirring tank 6 through the drive assembly. The rotating rod 11 is rotatably connected to the stirring tank 6, and there are multiple rotating rods 11. A stirring rod 12 is fixedly installed on the surface of the rotating rod 11. A support plate 13 is fixedly installed on the left side of the stirring tank 6. A storage tank 14 is fixedly installed on the top of the support plate 13. The top of the storage tank 14 is provided with an inlet valve. The mixing tank 6 has a liquid inlet 15 and a second conveying assembly inside. A diversion pipe 19 is located on the right side of the mixing tank 6 via the second conveying assembly, inside the mixing tank 6. A nozzle 20 is fixedly installed at the bottom of the diversion pipe 19. A transparent plate 21 is fixedly installed on the left side of the storage tank 14. An adjusting assembly is located on the top of the storage tank 14. A liquid level sensor 25 is installed inside the storage tank 14 via the adjusting assembly. An alarm 26 is fixedly installed on the left side of the storage tank 14. A controller 27 is fixedly installed on the front side of the storage tank 14. A drain pipe 29 is fixedly installed at the bottom of the mixing tank 6. Equipped with a control valve 30, this liquid chromatography-mass spectrometry (LC-MS) waste liquid recovery device transports the waste liquid from the LC-MS main body 2 to the mixing tank 6 via a first conveying component, and the cleaning agent from the storage tank 14 to the diversion pipe 19 via a second conveying component. After being diverted by the diversion pipe 19, the waste liquid is dispersed and sprayed into the mixing tank 6 from the nozzle 20. At the same time, the drive component causes the rotating rod 11 to rotate in the opposite direction, which in turn causes the stirring rod 12 to rotate in the opposite direction, thus stirring the waste liquid and cleaning agent in the mixing tank 6. This allows the cleaning agent to mix with the waste liquid more quickly, thereby facilitating faster waste liquid treatment.

[0025] according to Figure 4 and Figure 5As shown, the second delivery assembly includes a suction pipe 16 disposed inside the mixing tank 6. A second delivery pump 17 is fixedly installed at the top of the suction pipe 16, and a connecting pipe 18 is fixedly installed at the top of the second delivery pump 17. The connecting pipe 18 is connected to the diversion pipe 19. The second delivery pump 17 delivers the cleaning agent from the storage tank 14 from the suction pipe 16 to the connecting pipe 18, and then into the diversion pipe 19. After being diverted by the diversion pipe 19, it is sprayed into the mixing tank 6 from the nozzle 20, which facilitates the cleaning agent to be more dispersed into the waste liquid. The drive assembly includes... A drive motor 7 is installed at the top of the mixing tank 6. A rotating shaft 8 is fixedly installed at the output end of the drive motor 7. A first gear 9 is fixedly installed on the surface of the rotating shaft 8. A second gear 10 is meshed on the surface of the first gear 9. The second gear 10 is fixedly connected to the rotating rod 11. The drive motor 7 causes the rotating shaft 8 to rotate, which in turn causes the first gear 9 to rotate, and the second gear 10 to rotate in the opposite direction at the same time. This causes the rotating rod 11 to rotate in the opposite direction at the same time, and the mixing rod 12 to rotate in the opposite direction at the same time, so that the waste liquid and cleaning agent can be mixed more quickly.

[0026] according to Figure 3 As shown, the adjustment assembly includes a mounting plate 22 disposed on the top of the storage tank 14. An electric push rod 23 is fixedly installed on the inner wall of the mounting plate 22. A movable rod 24 is fixedly installed on the output end of the electric push rod 23. The movable rod 24 is slidably connected to the storage tank 14 and is fixedly connected to the liquid level sensor 25. The height of the liquid level sensor 25 can be adjusted by the adjustment assembly, so as to better set the amount of cleaning agent remaining in the storage tank 14 when the alarm is triggered.

[0027] All electrical components mentioned in this article are connected to 220V AC mains power, and the main controller can be a conventional known device such as a computer for control.

[0028] In use: Cleaning agent can be added to the storage tank 14 through the inlet 15. The controller 27 activates the electric push rod 23, causing the movable rod 24 to move up and down, which in turn moves the liquid level sensor 25 up and down until it reaches the appropriate height. The controller 27 then activates the first transfer pump 4, transferring waste liquid from the main body 2 of the liquid chromatography-mass spectrometry (LC-MS) instrument to the second transfer pipe 5 via the first transfer pipe 3. The waste liquid then enters the stirring tank 6. The controller 27 then activates the second transfer pump 17, drawing waste liquid from the storage tank 14 through the suction pipe 16. The cleaning agent is delivered to the connecting pipe 18, and then enters the diversion pipe 19. After being diverted by the diversion pipe 19, it is sprayed into the mixing tank 6 from the nozzle 20. At the same time, the controller 27 controls the drive motor 7 to start, causing the rotating shaft 8 to rotate, causing the first gear 9 to rotate, causing the second gear 10 to rotate in the opposite direction, causing the rotating rod 11 to rotate in the opposite direction, and causing the stirring rod 12 to rotate in the opposite direction, thus stirring the waste liquid and cleaning agent in the mixing tank 6. When the liquid level sensor 25 does not detect the liquid level, the controller 27 controls the alarm 26 to sound an alarm.

[0029] In summary, this liquid chromatography-mass spectrometry (LC-MS) waste liquid recovery device, through the first conveying component, transports the waste liquid in the LC-MS main body 2 to the mixing tank 6, and through the second conveying component, transports the cleaning agent in the storage tank 14 to the diversion pipe 19. After being diverted by the diversion pipe 19, the waste liquid is dispersed and sprayed into the mixing tank 6 from the nozzle 20. At the same time, through the driving component, the rotating rod 11 rotates in the opposite direction, causing the stirring rod 12 to rotate in the opposite direction as well, thereby stirring the waste liquid and cleaning agent in the mixing tank 6. This facilitates faster mixing of the cleaning agent and the waste liquid, thus enabling faster waste liquid treatment and solving the problems mentioned in the background art.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid waste recovery device for a liquid chromatograph, comprising a base (1), characterised in that, The base (1) top is provided with liquid chromatograph main body (2), the liquid chromatograph main body (2) left side is provided with first conveying assembly, the liquid chromatograph main body (2) left side is provided with stirring barrel (6) through first conveying assembly, the stirring barrel (6) top is provided with drive assembly, the stirring barrel (6) inside is provided with rotating rod (11) through drive assembly, the rotating rod (11) is rotatably connected with stirring barrel (6), and the number of rotating rod (11) is multiple, the rotating rod (11) surface is fixedly installed with stirring rod (12), the stirring barrel (6) left side is fixedly installed with support plate (13), the support plate (13) top is fixedly installed with storage box (14), the storage box (14) top is provided with liquid inlet (15), the stirring barrel (6) inside is provided with second conveying assembly, the stirring barrel (6) right side is provided with shunt pipe (19) through second conveying assembly, and shunt pipe (19) is located in the stirring barrel (6) inside, the shunt pipe (19) bottom is fixedly installed with spray head (20), the storage box (14) left side is fixedly installed with transparent plate (21), the storage box (14) top is provided with adjusting assembly, the storage box (14) inside is provided with liquid level sensor (25) through adjusting assembly, the storage box (14) left side is fixedly installed with alarm (26), the storage box (14) front side is fixedly installed with controller (27). 2.The liquid chromatography-mass spectrometry waste liquid recovery device according to claim 1, characterized in that, The first conveying assembly includes a first infusion tube (3) disposed on the left side of the liquid chromatograph main body (2), a first infusion tube (3) is fixedly installed with a first infusion tube (3) on the left side of the first infusion pump (4), and the second infusion tube (5) is fixedly installed with a second infusion tube (5) on the left side of the first infusion pump (4). The second infusion tube (5) is communicated with the stirring barrel (6). 3.The liquid chromatography-mass spectrometry waste liquid recovery device of claim 1, wherein, The drive assembly includes a drive motor (7) disposed on the top of the stirring barrel (6), a drive motor (7) is fixedly installed with a rotating shaft (8) on the output end, a first gear (9) is fixedly installed on the surface of the rotating shaft (8), and a second gear (10) is fixedly installed on the surface of the first gear (9). The second gear (10) is fixedly connected with the rotating rod (11).

4. The device according to claim 1, wherein, The second conveying assembly includes a liquid suction tube (16) disposed in the stirring barrel (6), a second conveying pump (17) is fixedly installed on the top end of the liquid suction tube (16), a connecting pipe (18) is fixedly installed on the top of the second conveying pump (17), and the connecting pipe (18) is communicated with the shunt pipe (19).

5. The device according to claim 1, wherein, The adjusting assembly includes a mounting plate (22) disposed on the top of the storage box (14), an electric push rod (23) is fixedly installed on the inner wall of the mounting plate (22), an activity rod (24) is fixedly installed on the output end of the electric push rod (23), and the activity rod (24) is slidably connected with the storage box (14). The activity rod (24) is fixedly connected with the liquid level sensor (25).

6. The device according to claim 1, wherein, The stirring barrel (6) bottom is fixedly installed with support column (28), the support column (28) is fixedly connected with the base (1), and the number of support column (28) is multiple.

7. The device according to claim 1, wherein, The stirring barrel (6) is fixedly installed with a liquid discharge pipe (29) at the bottom, and the liquid discharge pipe (29) is provided with a control valve (30).

Citation Information

Patent Citations

  • Liquid chromatograph-mass spectrometer waste liquid recovery device

    CN217093131U

Cited By

  • LC-MS combined mass spectrometer sample injection processing device and working method thereof

    CN122238544A