Chemical digestion treatment system and control method thereof

Abstract

The present application discloses a chemical digestion treatment system and a control method thereof, which relates to the field of detection technology and can realize the addition of not only a single chemical reagent but also multiple chemical reagents. The chemical digestion treatment system includes a mounting frame, a sampling device, a driving device, a cleaning tank, and a first waste liquid tank. The driving device is arranged on the mounting frame and connected to the sampling device, and is used to drive the sampling device to move relative to the mounting frame; the cleaning tank is located below the driving device and is used to hold a cleaning liquid, and the cleaning liquid is used to clean the sampling device; the first waste liquid tank is located below the driving device and is used to hold waste liquid.

Description

Technical Field

[0001] The present application relates to the field of detection technology, and in particular to a chemical digestion treatment system and a control method thereof. Background Art

[0002] Currently, chemical digestion processes involve the use of numerous organic and inorganic chemical reagents that are harmful to the human body. Because sampling devices can automatically sample, compared to manual sampling methods using auxiliary equipment such as pipettes and straws, they can reduce human contact with reagents and mitigate the harmful effects of reagents on the human body. Therefore, sampling devices are increasingly used in environmental laboratories.

[0003] However, the sampling device in the related art cannot achieve simultaneous sampling of multiple reagents, and its application scenarios are limited. Summary of the Invention

[0004] The embodiments of the present application provide a chemical digestion treatment system and a control method thereof, which are used to solve the problem of limited application scenarios of the chemical digestion treatment system.

[0005] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0006] In the first aspect, the present application provides a chemical digestion treatment system, including a mounting frame, a sampling device, a driving device, a cleaning tank and a first waste liquid tank, the driving device is arranged on the mounting frame, the driving device is connected to the sampling device, and is used to drive the sampling device to move relative to the mounting frame; the cleaning tank is located below the driving device, the cleaning tank is used to hold cleaning liquid, and the cleaning liquid is used to clean the sampling device; the first waste liquid tank is located below the driving device, and the first waste liquid tank is used to hold waste liquid.

[0007] The chemical digestion treatment system in the present application is provided with a cleaning tank and a first waste liquid tank, and the sampling device can extract the cleaning liquid in the cleaning tank and discharge the cleaning liquid into the first waste liquid tank. In this way, the sampling device can be cleaned during the experiment, and different chemical reagents can be sampled through the cleaned sampling device. It can be possible to sample a variety of different chemical reagents while avoiding cross contamination between different chemical reagents, so that chemical reagents with complex proportions can be added during the experiment. Therefore, the chemical digestion treatment system in the present application can not only realize the addition of a single chemical reagent, but also realize the addition of multiple chemical reagents, expanding the application scenarios of the chemical digestion treatment system.

[0008] In a possible implementation of the first aspect, the cleaning tank includes a first cavity and a second cavity, the first cavity having a first inlet, a first open port and an overflow port, the first inlet being connected to a liquid supply device for the cleaning liquid, and the first open port facing the driving device; the second cavity being connected to the overflow port, and the second cavity having a first outlet for discharging the liquid in the second cavity.

[0009] In this way, during the experiment, the cleaning liquid in the first cavity can be kept flowing, so that the cleaning liquid in the first cavity can continuously overflow into the second cavity, so that the chemical reagents and other impurities remaining in the first cavity can be discharged in time, thereby ensuring the cleanliness of the cleaning liquid in the first cavity and thus ensuring the cleaning effect.

[0010] In one possible implementation of the first aspect, the first inlet is located at the bottom of the first cavity. This allows the cleaning liquid to flow upward into the first cavity, increasing the impact force of the cleaning liquid flowing into the first cavity. This allows dirt (e.g., residual reagents, etc.) in the first cavity to be evenly mixed with the cleaning liquid. Alternatively, the cleaning liquid can be carried to a higher position as the water rises, facilitating discharge of the dirt along with the cleaning liquid. This effectively prevents dirt from accumulating in the first cavity, thereby improving the cleanliness of the cleaning liquid in the first cavity.

[0011] In one possible implementation of the first aspect, the second cavity includes a second opening, which faces the drive device. This allows the component to be cleaned to be inserted into the second cavity through the second opening and initially cleaned using the liquid within the second cavity. This fully utilizes the liquid within the second cavity, enabling multiple cleanings. This not only increases the number of cleaning cycles, thereby improving cleaning effectiveness, but also helps reduce and conserve cleaning fluid usage.

[0012] In one possible implementation of the first aspect, there are multiple first cavities. For example, the multiple first cavities can be arranged circumferentially around the first outlet. This allows for multiple, multi-stage cleaning of the sampling device, further improving the cleaning effect.

[0013] In one possible implementation of the first aspect, the second cavity surrounds the outer circumference of the first cavity. This allows for greater flexibility in the placement of the overflow port, and allows the overflow port to be designed as a closed ring, which helps increase the area of ​​the overflow port, thereby increasing the speed at which the liquid in the first cavity overflows into the second cavity and shortening the replacement cycle of the cleaning liquid in the first cavity.

[0014] In a possible implementation of the first aspect, an anti-corrosion layer is provided on at least a portion of the inner wall surface of the second cavity, which can protect the cleaning tank and prevent the cleaning tank from being corroded.

[0015] In a possible implementation of the first aspect, an anti-corrosion layer is provided on at least a portion of the inner wall surface of the first cavity, thereby further improving the anti-corrosion effect of the cleaning tank.

[0016] In one possible implementation of the first aspect, the cleaning tank includes an outer shell and an inner shell. The outer shell includes a first side panel and a first bottom panel. The first side panel is cylindrical, and the first bottom panel is fixed to the first side panel. The inner shell is cylindrical and fixed to the first bottom panel. At least a portion of the inner shell is separated from the first side panel. A first cavity is located within the inner shell, and a second cavity is defined between the first side panel, the first bottom panel, and the inner shell. In this manner, the first cavity is defined between the inner shell and the first bottom panel, and the first bottom panel can be reused as the bottom panel of the first cavity. This simplifies the structure of the cleaning tank, reduces material usage, and reduces the cost of the cleaning tank.

[0017] In one possible implementation of the first aspect, the cleaning tank further comprises a raised portion located on a side of the first bottom plate facing away from the inner shell. The raised portion is hollowed out to form a third cavity, which is connected to the first outlet and has a second outlet. The raised portion may partially protrude from the surface of the first bottom plate facing away from the inner shell. This allows liquid in the second cavity to flow through the first outlet to the lower third cavity, facilitating the emptying of the liquid in the second cavity and preventing liquid from remaining in the second cavity. This helps prevent contaminants from corroding the cleaning tank and helps extend the service life of the cleaning tank.

[0018] In one possible implementation of the first aspect, the raised portion includes a second bottom plate and a second side panel, the second bottom plate being opposite and spaced apart from the first bottom plate; the second side panel surrounds the periphery of the first outlet and is connected between the first and second bottom plates; and the cleaning tank further includes a connecting plate connected between the first side panel and the second bottom plate. In this manner, the cleaning tank can be supported on the supporting plate, the first loading rack, the second loading rack, or the workbench via the connecting plate and the second bottom plate, thereby improving the support stability of the cleaning tank and preventing it from tipping over.

[0019] In one possible implementation of the first aspect, the cleaning tank is an integrally formed part. This simplifies the processing of the cleaning tank, omitting assembly steps, and simultaneously improves the connection strength between the inner shell and the outer shell, as well as the sealing performance of each cavity (e.g., the first cavity, the second cavity, the third cavity, etc.).

[0020] In one possible implementation of the first aspect, the sampling device includes a sampling needle, an injection needle, and a first connecting tube, wherein the first connecting tube is connected between the outlet of the sampling needle and the inlet of the injection needle; and the drive device includes a first drive assembly and a second drive assembly, wherein the first drive assembly is connected to the sampling needle and is used to drive the sampling needle to move relative to a mounting frame, and the second drive assembly is connected to the injection needle and is used to drive the injection needle to move relative to the mounting frame. In this way, the first drive assembly and the second drive assembly can respectively drive the movement of the sampling needle and the injection needle, thereby decoupling the movement of the sampling needle and the injection needle, enabling sampling of a variety of different chemical reagents and facilitating reducing the movement stroke of the sampling needle and the injection needle during the sampling process.

[0021] In one possible implementation of the first aspect, the sampling device includes a flow control pump having a first pump port and a second pump port, the first pump port being connected to an outlet of the sampling needle, and the second pump port being connected to an inlet of the injection needle. This improves sampling accuracy, thereby improving the accuracy of the chemical digestion process and ensuring the accuracy of subsequent chemical testing.

[0022] In a possible implementation of the first aspect, the first drive assembly includes a first drive unit, a second drive unit, and a third drive unit. The first drive unit is connected to the sampling needle, and the first drive unit is used to drive the sampling needle to move relative to the mounting frame along a first direction; the second drive unit is connected to the first drive unit, and the second drive unit is used to drive the first drive unit to move relative to the mounting frame along a second direction, so as to drive the sampling needle to move along the second direction; the third drive unit is connected to the first drive unit and the sampling needle, and the third drive unit is used to drive the sampling needle to move relative to the mounting frame along a height direction of the mounting frame, and the third drive unit can move with the first drive unit; wherein the first direction intersects with the second direction, and the first direction and the second direction are both perpendicular to the height direction of the mounting frame.

[0023] In this way, the sampling needle can be driven by the first driving unit and the second driving unit to move along a plane perpendicular to the height of the mounting frame (for example, the XY plane), so that the sampling needle can be moved to above the first container at different positions, and the sampling needle can be driven by the third driving unit to move in the up and down directions, so that the sampling needle can be extended into the first container to extract the chemical reagent in the first container.

[0024] In one possible implementation of the first aspect, the first drive unit further includes a first drive rod, a first drive member, and a first movable member. The first drive rod extends in a first direction; the first drive member is connected to the first drive rod and is configured to drive the first drive rod to rotate about its own axis; the first movable member is threadedly engaged with the first drive rod, and the sampling needle is connected to the first movable member. In this manner, the first drive rod and the first movable member can form a screw-nut structure. When the first drive member drives the first drive rod to rotate, the first movable member can move in the first direction, thereby driving the sampling needle to move in the first direction. This simple structure is easy to control.

[0025] In one possible implementation of the first aspect, the first drive unit further includes a first limiting rod, the first limiting rod being parallel to and spaced apart from the first drive rod, and the first movable member slidingly engaging with the first limiting rod. In this manner, the first limiting rod can guide the movement direction of the first movable member, thereby preventing the first movable member from rotating relative to the first bracket and improving the smoothness of the movement of the first movable member, thereby enabling the sampling needle to move smoothly in the first direction.

[0026] In a possible implementation of the first aspect, there are multiple first drive units, and the multiple first drive units include two first drive units arranged in a first direction; a first moving member of one of the two first drive units arranged in the first direction is slidably engaged with a first drive rod of the other first drive unit; and a first moving member of the other first drive unit of the two first drive units arranged in the first direction is slidably engaged with the first drive rod of the one first drive unit.

[0027] In this way, the first driving rod of one of the two first driving units can be reused as the first limiting rod of the other first driving unit. The first limiting rod of one of the two first driving units can be reused as the first driving rod of the other first driving unit. As a result, the two first driving units arranged in the first direction can share two rods, which on the one hand helps to reduce the number of parts of the first driving assembly and can simplify the structure of the first driving assembly; on the other hand, it also helps to simplify the assembly process of the first driving assembly and improve assembly efficiency; on yet another hand, it also helps to reduce the space occupied by the first driving rod and the first limiting rod, thereby reducing the overall space occupied by the first driving assembly.

[0028] In a possible implementation of the first aspect, the second drive unit includes a second drive rod, a second drive member and a second movable member, the second drive rod extends along the second direction; the second drive member is fixed to the mounting bracket, the second drive member is connected to the second drive rod, and the second drive member is used to drive the second drive rod to rotate around the second drive rod's own axis; the second movable member is threadedly engaged with the second drive rod, and the first drive unit is connected to the second movable member.

[0029] In this way, the second drive rod and the second movable member can be formed into a screw-nut structure. When the second drive member drives the second drive rod to rotate, the second movable member can move in the second direction relative to the second bracket, thereby driving the first drive unit and the sampling needle to move in the first direction. The structure is simple and easy to control.

[0030] In a possible implementation of the first aspect, the third drive unit includes a third drive member fixed to the first movable member, wherein the third drive member has a telescopic shaft that can be extended and retracted along the height direction of the mounting frame, and the sampling needle is connected to the telescopic shaft. The structure is simple and easy to implement.

[0031] In one possible implementation of the first aspect, the chemical digestion system includes an ultrasonic water bath located below the second drive assembly. This facilitates control of the reaction temperature and improves the mixing efficiency and degree of the chemical reagents, thereby increasing reaction accuracy and shortening reaction time.

[0032] In one possible implementation of the first aspect, the chemical digestion treatment system includes a delivery pump for pumping cleaning fluid into a cleaning tank; a control device, and at least one of the sampling device, the delivery pump, and the drive device is electrically connected to the control device. This enables automated control of the chemical digestion treatment system, reduces the complexity and labor intensity of manual operations, and improves detection speed, accuracy, and efficiency. This allows for a truly zero-contact chemical reagent process throughout the entire detection and analysis process, achieving a green experimental process and significantly protecting the health and safety of personnel.

[0033] In the second aspect, the present application provides a control method for a chemical digestion treatment system in any of the above-mentioned technical solutions, the control method comprising: controlling a sampling device to add a first reagent to a target container; cleaning the sampling device: controlling the sampling device that has extracted the first reagent to extract the cleaning liquid in the cleaning tank, and discharging the cleaning liquid in the sampling device to a first waste liquid tank.

[0034] In this way, during the experiment, the sampling device can be automatically cleaned, and different chemical reagents can be sampled through the cleaned sampling device. Under the premise of avoiding cross contamination between different chemical reagents, sampling of multiple different chemical reagents can be achieved, so that chemical reagents with complex proportions can be added during the experiment.

[0035] In one possible implementation of the second aspect, the control method of the chemical digestion treatment system further includes controlling the cleaned sampling device to add a second reagent to the target container. In this way, sampling of multiple different chemical reagents can be achieved while avoiding cross contamination between different chemical reagents.

[0036] In a possible implementation of the second aspect, the cleaning tank includes a first cavity and a second cavity, the first cavity having a first inlet, a first open port, and an overflow port, the first inlet being connected to a liquid supply device for the cleaning liquid, and the first open port facing a drive device; the second cavity being connected to the overflow port, and the second cavity having a first outlet for discharging liquid from the second cavity; a delivery pump being provided between the first cavity and the liquid supply device, the delivery pump being used to pump cleaning liquid into the cleaning tank; cleaning the sampling device, including: pumping cleaning liquid into the first cavity through the delivery pump, and keeping the delivery pump in an open state; and controlling the sampling device to extract liquid from the first cavity for cleaning. In this way, the cleaning liquid in the first cavity can maintain a fluid state, and impurities such as chemical reagents remaining in the first cavity can be discharged in a timely manner, thereby ensuring the cleanliness of the cleaning liquid in the first cavity and thus ensuring the cleaning effect.

[0037] In one possible implementation of the second aspect, before controlling the sampling device to draw liquid from the first cavity for cleaning, the method further includes: controlling the sampling device to draw liquid from the second cavity for cleaning. In this way, the component to be cleaned can be inserted into the second cavity through the second opening and initially cleaned using the liquid in the second cavity. This fully utilizes the liquid in the second cavity and allows for multiple cleanings. This not only increases the number of cleaning cycles, thereby improving cleaning effectiveness, but also helps reduce the amount of cleaning fluid used, thereby conserving cleaning fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of a chemical digestion treatment system provided in some embodiments of the present application;

[0039] Figure 2 for Figure 1 Schematic diagram of the assembly of the mounting frame and drive device in the chemical digestion treatment system shown;

[0040] Figure 3 for Figure 1 A schematic diagram of a sampling device in a chemical digestion treatment system is shown;

[0041] Figure 4 for Figure 1 A schematic diagram of the assembly of the first drive assembly and the first bracket in the chemical digestion treatment system shown;

[0042] Figure 5 for Figure 1 A perspective view of a first drive assembly in the chemical digestion treatment system;

[0043] Figure 6 for Figure 5 A cross-sectional view of the first drive assembly shown at line AA;

[0044] Figure 7 for Figure 5 A cross-sectional view of the first drive assembly shown at line BB;

[0045] Figure 8 for Figure 5 The schematic diagram of the assembly of the third drive unit, the sampling needle and the first moving member in the first drive assembly is shown;

[0046] Figure 9 for Figure 1 The schematic diagram of the chemical digestion treatment system shown is hidden behind the cover;

[0047] Figure 10 for Figure 9 A perspective view of a cleaning tank in the chemical digestion treatment system is shown;

[0048] Figure 11 for Figure 10 The cross-sectional view of the cleaning tank shown is at line CC;

[0049] Figure 12-14 A diagram of a setting interface of a human-machine interface provided in some embodiments of the present application;

[0050] Figure 15 This is a control flow chart of a chemical digestion treatment system provided in some embodiments of the present application.

[0051] Reference numerals:

[0052] Chemical digestion treatment system 100; exhaust pipe G1;

[0053] Box body 10; carrying plate 11; cover 12; support leg 13;

[0054] Mounting frame 20; first bracket 21; first frame 211; first support rod 2111; second support rod 2112; third support rod 2113; fourth support rod 2114; first connecting member 2115; second connecting member 2116; first carrier 212; limiting slot C1; second bracket 22; second frame 221; second carrier 222;

[0055] Sampling device 30; sampling needle 31; injection needle 32; first connecting pipe 33; flow control pump 34; pump body 341; controller 342;

[0056] Driving device 40; first driving assembly 41; first driving unit 411; first driving rod 4111; first driving member 4112; first output shaft 4112a; first moving member 4113; first threaded hole K1; first limiting hole K2; first limiting rod 4114; second driving unit 412; second driving rod 4121; second driving member 4122; second output shaft 4122a; second moving member 4123; second limiting rod 4124; third driving unit 413; third driving member 4131; telescopic shaft 4131a; fixing member 4132; first through hole K3; second through hole K4;

[0057] a second drive assembly 42;

[0058] Cleaning device 50; cleaning tank 51; anti-corrosion layer 510; outer shell 511; first side panel 5111; first bottom plate 5112; inner shell 512; raised portion 513; second side panel 5131; second bottom plate 5132; connecting plate 514; first cavity Q1; first inlet Q11; first open port Q12; overflow port Q13; second cavity Q2; first outlet Q21; second open port Q22; third cavity Q3; second outlet Q31; first waste liquid tank 52; second waste liquid tank 53; liquid supply device 54; cleaning liquid manufacturing equipment 541; cleaning liquid storage tank 542; delivery pump 543; delivery pipe 55;

[0059] First container 61; second container 62;

[0060] Ultrasonic water bath 70;

[0061] Control compartment 80; transparent observation window 81; control panel 82. DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0063] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being more preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0064] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0065] In the description of the embodiments of this application, "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0066] In the embodiments of the present application, directional terms such as "top", "bottom", "up", "down", "inside", "outside", and "height" may be defined including but not limited to the orientation relative to the schematic placement of the components in the drawings. It should be understood that these directional terms may be relative concepts, which are used for relative description and clarification, and may change accordingly according to changes in the orientation of the components in the drawings.

[0067] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship remains unchanged after the connection. "Rotational connection" means that the two are connected to each other and can rotate relative to each other after the connection. "Sliding connection" means that the two are connected to each other and can slide relative to each other after the connection. "Transmission connection" means that the movement of one component can be transmitted to the other component, and the connection method between the two components includes but is not limited to at least one of the connection methods such as rotation connection, sliding connection, gear meshing transmission connection, sprocket transmission connection, and cam mechanism transmission connection.

[0068] In the description of the embodiments of the present application, the terms "parallel", "perpendicular", and "facing the same direction" include the situations described and situations similar to the situations described, and the range of the similar situations is within the acceptable deviation range. For example, "parallel" includes absolute parallelism and approximately parallelism, where the acceptable deviation range of approximately parallelism can be, for example, a deviation within 10°; "perpendicular" includes absolute perpendicularity and approximately perpendicularity, where the acceptable deviation range of approximately perpendicularity can also be, for example, a deviation within 10°. "Facing the same direction" includes absolutely the same direction and approximately the same direction, where the acceptable deviation range of approximately the same direction can be, for example, a deviation within 10°.

[0069] For ease of understanding, before giving a detailed introduction to the chemical digestion treatment system and the control method thereof in the embodiments of the present application, the relevant terms involved in the embodiments of the present application are first explained.

[0070] Chemical digestion: This refers to the process of using chemical reagents to convert the target substance in a sample into a testable form. For example, chemical digestion can involve treating a sample chemically to destroy organic matter, dissolve particulate matter, and oxidize the analyte to a single, high-valent state or convert it into an ionic state that is easier to analyze.

[0071] Chemical reagent: a relative standard substance used for chemical research and component analysis.

[0072] Currently, during chemical digestion, sampling of organic and inorganic chemical reagents involves manual sampling and automatic sampling. Manual sampling involves workers using auxiliary equipment such as pipettes and straws. Automatic sampling involves sampling using a sampling device.

[0073] Manual sampling has low sampling efficiency, long cycle time, and it is difficult to ensure the consistency of multiple samplings. In addition, during the manual sampling process, workers will inevitably come into contact with chemical reagents that are harmful to the human body, affecting their health.

[0074] Automatic sampling can reduce workers' contact time with chemical reagents and reduce the impact of chemical reagents on workers' health. In addition, automatic sampling has high sampling efficiency and short cycle time, which helps to ensure the consistency of multiple sampling. Therefore, the application of sampling devices in environmental protection laboratories is becoming more and more extensive.

[0075] However, the sampling device in the related art can only realize automatic sampling of a single reagent, and cannot realize sampling of multiple different chemical reagents, and the application scenarios are limited.

[0076] In order to realize automatic sampling of multiple chemical reagents, an embodiment of the present application provides a chemical digestion treatment system, which integrates a sampling device and a cleaning device. After the sampling of a single chemical reagent is completed by the sampling device, the sampling device can be automatically cleaned by the cleaning device, and then different chemical reagents can be sampled by the cleaned sampling device. Under the premise of avoiding cross contamination between different chemical reagents, the sampling of multiple different chemical reagents can be realized, so that chemical reagents with complex proportions can be added during the chemical digestion process.

[0077] The chemical digestion treatment system 100 in the embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0078] See also Figure 1 , Figure 1 This is a schematic diagram of a chemical decomposition treatment system 100 provided in some embodiments of the present application. The chemical decomposition treatment system 100 includes a box 10, a mounting frame 20, a sampling device 30, a driving device 40 and a cleaning device 50.

[0079] The box 10 is used to provide assembly space for other components of the chemical digestion treatment system 100, and can provide a sealed reaction space to prevent the exhaust gas generated during the chemical digestion process from being directly discharged into the laboratory, which is beneficial to prevent the staff from inhaling the exhaust gas, thereby ensuring the health of the staff and improving the environmental protection level of the laboratory (such as an environmental protection laboratory).

[0080] The housing 10 is generally cubical in shape. For ease of description, an XYZ coordinate system is established for the housing 10. Specifically, the height of the housing 10 is defined as the Z-axis, the length of the housing 10 is defined as the X-axis, and the width of the housing 10 is defined as the Y-axis. It is understood that the coordinate system of the chemical digestion treatment system 100 can be flexibly configured according to actual needs and is not specifically limited here. Furthermore, in other embodiments, the housing 10 may also be cylindrical, elliptical, or similar in shape.

[0081] See also Figure 1 The housing 10 includes a supporting plate 11 and a cover 12. The supporting plate 11 is used to provide support for structures such as the mounting frame 20 and the cleaning device 50. The supporting plate 11 is generally plate-shaped. For example, the supporting plate 11 can be rectangular, circular, or elliptical.

[0082] The housing 12 is mounted on the support plate 11, and a space is defined between the housing 12 and the support plate 11 to accommodate the mounting bracket 20, the sampling device 30, the drive device 40, the cleaning device 50, and the like. In some embodiments, at least a portion of the housing 12 is transparent. Specifically, a portion of the housing 12 is transparent, or the entire housing 12 is transparent. This facilitates observation of the experimental conditions within the housing 10, facilitates timely detection of any anomalies during the experiment, and ensures the safety of the experiment.

[0083] In order to facilitate the staff to perform experimental operations, a portion of the cover 12 can form a door body ( Figure 1 (not shown) for opening or closing the assembly space. For example, the door body can be a sliding door, a folding door or a swing door.

[0084] In some embodiments, see Figure 1The chemical digestion treatment system 100 also includes an exhaust pipe G1. One end of the exhaust pipe G1 communicates with the assembly space within the housing 10, and the other end can communicate with an exhaust gas treatment device. Alternatively, the other end of the exhaust pipe G1 can communicate with the atmosphere outside the laboratory. This allows the exhaust pipe G1 to promptly discharge the exhaust gas generated during the chemical digestion process, preventing the exhaust gas from polluting the air within the laboratory.

[0085] Please continue reading Figure 1 In some embodiments, the box 10 may further include a support leg 13, one end of which may be supported on a workbench ( Figure 1 The housing 10 is supported on a supporting surface (e.g., a table or the ground) (not shown), and the other ends of the support legs 13 are connected to the support plate 11. In this way, the support legs 13 can separate the support plate 11 from the supporting surface, thereby creating a heat dissipation space between the support plate 11 and the supporting surface. This facilitates heat exchange between the housing 10 and the air, accelerates heat dissipation within the housing 10, prevents heat accumulation within the housing 10, and improves the safety of the chemical digestion process.

[0086] In order to improve the support stability, there can be multiple support legs 13, and the multiple support legs 13 are spaced apart and arranged in the circumferential direction of the supporting plate 11. For example, Figure 1 In the embodiment shown, there are four supporting legs 13. In other embodiments, there may be two, three, five or more supporting legs 13.

[0087] Of course, it is understood that in some other embodiments, the housing 10 may not include the support legs 13. In this case, the housing 10 may be supported on a workbench by means of the support plate 11. For another example, in some other embodiments, the cover 12 may be placed over the workbench, with the cover 12 and the workbench forming an assembly space. In this case, the workbench may serve as the support plate 11. For another example, in some other embodiments, the chemical digestion treatment system 100 may not include the housing 10. In this case, the mounting frame 20, sampling device 30, and other structures may be placed in a fume hood in the laboratory or directly on the workbench.

[0088] See also Figure 2 , Figure 2 for Figure 1 The figure shows an assembly diagram of the mounting frame 20 and the drive device 40 and other structures in the chemical digestion treatment system 100. The mounting frame 20 is used to provide an installation base for the drive device 40 and other structures. The mounting frame 20 can be supported on the supporting plate 11.

[0089] The mounting frame 20 may include a first bracket 21 and a second bracket 22. The height direction of the first bracket 21 is parallel to the Z-axis direction. In some embodiments, the first bracket 21 includes a first frame 211 and a first carrier 212. For example, the first frame 211 may be formed as a rectangular frame. Of course, the shape of the first frame 211 is not limited to this.

[0090] Specifically, the first frame 211 includes a first support rod 2111, a second support rod 2112, a third support rod 2113, and a fourth support rod 2114, which are sequentially spaced apart along the circumference of the carrier plate 11. The first support rod 2111 and the second support rod 2112 can be spaced apart in the first direction e1, and the third support rod 2113 and the fourth support rod 2114 can be spaced apart in the first direction e1. The second support rod 2112 and the third support rod 2113 can be spaced apart in the second direction e2, and the first support rod 2111 and the fourth support rod 2114 can be spaced apart in the second direction e2.

[0091] The first direction e1 intersects the second direction e2, and both the first direction e1 and the second direction e2 are perpendicular to the height direction of the first bracket 21. In some embodiments, the first direction e1 and the second direction e2 may be perpendicular. For example, the first direction e1 may be parallel to the X-axis direction, and the second direction e2 may be parallel to the Y-axis direction. Of course, it is understood that in other embodiments, the first direction e1 may be parallel to the X-axis direction, and the second direction e2 may be parallel to the Y-axis direction. Alternatively, the first direction e1 may intersect with the X-axis direction.

[0092] See also Figure 2 The first frame 211 further includes a first connecting member 2115 and a second connecting member 2116. The first connecting member 2115 and the second connecting member 2116 can both be in the shape of an elongated strip. The two ends of the first connecting member 2115 are respectively connected to two of the first support rod 2111, the second support rod 2112, the third support rod 2113, and the fourth support rod 2114. The two ends of the second connecting member 2116 are respectively connected to the other two of the first support rod 2111, the second support rod 2112, the third support rod 2113, and the fourth support rod 2114. The first connecting member 2115 and the second connecting member 2116 can be parallel or cross-shaped.

[0093] For example, see Figure 2The two ends of the first connecting member 2115 can be connected to the first support rod 2111 and the fourth support rod 2114 respectively, and the two ends of the second connecting member 2116 can be connected to the second support rod 2112 and the third support rod 2113 respectively. The first connecting member 2115 and the first support rod 2111 can be connected by fasteners, welding, clamping, etc., or the first connecting member 2115 and the first support rod 2111 can also be integrally formed. The connection method between the first connecting member 2115 and the fourth support rod 2114, the connection method between the second connecting member 2116 and the second support rod 2112, and the connection method between the second connecting member 2116 and the third support rod 2113 can all be designed with reference to the connection method between the first connecting member 2115 and the first support rod 2111, and will not be repeated here.

[0094] In this way, the first support rod 2111, the second support rod 2112, the third support rod 2113, and the fourth support rod 2114 can be connected into a whole through the first connecting member 2115 and the second connecting member 2116, which facilitates the transportation and assembly of the first bracket 21. At the same time, the first connecting member 2115 and the second connecting member 2116 can also act as reinforcing ribs, thereby improving the structural strength of the first frame 211 and ensuring the support stability of the first bracket 21.

[0095] The first carrier 212 is relatively fixed to the first frame 211. The first carrier 212 can be connected to at least one of the first frame 211 and the carrier plate 11. For example, in some embodiments, the first carrier 212 can be connected to a first connector 2115 and a second connector 2116. The first carrier 212 and the first connector 2115 can be connected by fasteners, welding, snap-fitting, or the like. Alternatively, the first connector 2115 and the first carrier 212 can be integrally formed. The connection method between the first carrier 212 and the second connector 2116 can be designed with reference to the connection method between the first carrier 212 and the second connector 2116.

[0096] For example, in some other embodiments, the first carrier 212 may also be connected to at least two of the first support rod 2111, the second support rod 2112, the third support rod 2113, and the fourth support rod 2114. In this case, the first frame 211 may not include at least one of the first connecting member 2115 and the second connecting member 2116.

[0097] The first carrier 212 is used to carry a first container 61. The first container 61 is used to hold a chemical reagent. The chemical reagent can be in liquid form. There may be multiple first containers 61, and the chemical reagents in different first containers 61 may be the same or different. For example, the first container 61 may include at least one of a reagent bottle, a test tube, and a beaker. The material of the first container 61 may be glass, plastic, ceramic, stainless steel, etc. The first container 61 may be a wide-mouth bottle or a narrow-mouth bottle. The specific material and type of the first container 61 can be selected based on the storage requirements of the chemical reagent.

[0098] In some embodiments, the first carrier 212 is plate-shaped. To limit the position of the first container 61, the first carrier 212 is provided with a limiting slot C1, into which a portion of the first container 61 can be snapped. The number of limiting slots C1 can be multiple. This can further stabilize the position of the first container 61, helping to prevent the first container 61 from tipping over during the experiment, thereby preventing chemical reagents from spilling from the first container 61 and improving the safety of the chemical digestion process.

[0099] In some embodiments, the height of the first carrier 212 is adjustable. That is, the position of the first carrier 212 in the Z-axis direction is adjustable. For example, the first frame 211 may have multiple locking positions for fixing the first carrier 212, and the multiple locking positions are arranged in the height direction of the first frame 211 (for example, Figure 2 In this way, the application range of the chemical digestion treatment system 100 can be expanded, so that the first containers 61 of different heights can all meet the experimental requirements of the chemical digestion process, and are conducive to improving sampling efficiency.

[0100] For example, during the experimental preparation process, the first sample carrier 212 can be fixed to an appropriate locking position according to actual needs to adjust the height of the first sample carrier 212 to meet the experimental requirements. After the experiment begins, the first sample carrier 212 and the first frame 211 can be relatively fixed to prevent the first container 61 from tipping over during the experiment.

[0101] It is understood that in other embodiments, the first carrier 212 and the first frame 211 may also be relatively fixed. In other words, the height of the first carrier 212 is not adjustable. The first carrier 212 is a fixed carrier. This also ensures the positional stability of the first container 61 and prevents the first container 61 from tipping over.

[0102] In some embodiments, see Figure 1The first carrier 212 is spaced apart from the carrier plate 11. It is understood that in other embodiments, the first carrier 212 may also be disposed on the carrier plate 11. Alternatively, in other embodiments, the first bracket 21 may not include the first carrier 212. In this case, the first container 61 may be placed on the carrier plate 11.

[0103] See also Figure 2 The second bracket 22 includes a second frame 221 and a second carrier 222. The structure of the second frame 221 can be the same as that of the first frame 211. In this way, the structure of the mounting frame 20 can be simplified, which is conducive to improving the production efficiency of the mounting frame 20.

[0104] The second carrier 222 is used to hold the second container 62. The second carrier 222 can be mounted on the second frame 221. The sample to be tested and the chemical reagent can react in the second container 62. In some embodiments, the second container 62 is a test tube, and the second carrier 222 is a test tube rack. Of course, in other embodiments, the second container 62 can also be a reaction bottle such as a round-bottom flask, a flat-bottom flask, an Erlenmeyer flask, a distillation flask, or a titration bottle.

[0105] In order to ensure the reaction temperature and speed up the reaction rate, please refer to Figure 1 Combined with Figure 2 The chemical digestion system 100 also includes an ultrasonic water bath 70. The ultrasonic water bath 70 utilizes ultrasonic vibrations to perform laboratory operations such as cleaning, mixing, or cell disruption. The ultrasonic water bath 70 may include a water bath, an ultrasonic generator, and a temperature controller. At least a portion of the ultrasonic water bath 70 may be located below the second carrier 222. During the chemical digestion process, the second container 62 may be placed in the water bath of the ultrasonic water bath 70.

[0106] The ultrasonic generator generates high-frequency electrical energy, which is converted into ultrasonic vibrations by a transducer. This allows the reagents in the second container 62 to be evenly mixed, which helps to increase the rate and uniformity of the chemical reaction. The temperature controller adjusts the temperature of the water in the water bath and maintains it constant, thus facilitating control of the reaction temperature.

[0107] When the ultrasonic water bath 70 is operating, the high-frequency current generated by the ultrasonic generator is converted into ultrasonic vibrations by the transducer. These vibrations are transmitted through the water medium, generating a large number of tiny bubbles (called "cavitation bubbles"). These bubbles grow rapidly and violently collapse under the action of the vibrations, generating local high pressure and temperature of up to several thousand atmospheres, as well as microjets with speeds of up to several hundred kilometers per hour, which effectively mix the solution.

[0108] In some embodiments, the second carrier 222 is height-adjustable in the Z-axis direction. This facilitates adjusting the height of the second container 62 immersed in the water bath to ensure smooth reaction, and also facilitates easy placement and removal of the second container 62, thereby improving experimental efficiency.

[0109] See also Figure 2 In some embodiments, the first support 21 and the second support 22 are spaced apart. This helps increase the distance between the first container 61 and the second container 62, thereby preventing the gas volatilized after the sample in the second container 62 reacts from contaminating the chemical reagent in the first container 61, ensuring the purity of the chemical reagent in the first container 61, and thus improving the accuracy of the chemical digestion process.

[0110] It is understood that, in other embodiments, the first bracket 21 and the second bracket 22 may also be connected together. Alternatively, the first bracket 21 and the second bracket 22 may be formed as an integral structure.

[0111] The sampling device 30 can be used to transfer the chemical reagent from the first container 61 to the second container 62 to facilitate addition and mixing of the chemical reagent. Multiple sampling devices 30 can be provided. For example, there can be two, three, four, five, or more sampling devices 30. This improves sampling efficiency and shortens the sampling cycle.

[0112] In some embodiments, see Figure 3 , Figure 3 for Figure 1 The schematic diagram of the sampling device 30 in the chemical digestion treatment system 100 is shown. The sampling device 30 includes a sampling needle 31, an injection needle 32, and a first connecting tube 33. The first connecting tube 33 is connected between the outlet of the sampling needle 31 and the inlet of the injection needle 32. The sampling needle 31 can be used to extract chemical reagents from the first container 61, and the injection needle 32 can be used to add chemical reagents to the second container 62. Specifically, the chemical reagent extracted by the sampling needle 31 can be transported to the injection needle 32 through the first connecting tube 33 and then added to the second container 62 by the injection needle 32.

[0113] The first connecting tube 33 may be a flexible tube or elastically deformable. For example, the first connecting tube 33 may be made of rubber, plastic, silicone, or the like. These materials are highly corrosion-resistant and have good bending properties, thereby extending the service life of the sampling device 30.

[0114] It should be noted that the first connecting pipe 33 can be bent freely. During assembly, the first connecting pipe 33 can be bent into a certain shape according to assembly requirements. Therefore, the shape of the first connecting pipe 33 is not affected by the Figure 3 restrictions.

[0115] In some embodiments, at least a portion of the first connecting tube 33 extends in a serpentine manner. Specifically, the stretched length of the first connecting tube 33 is greater than the distance between the inlet of the sampling needle 31 and the outlet of the injection needle 32. This allows the first connecting tube 33 to be redundantly positioned between the sampling needle 31 and the injection needle 32, allowing it to deform with the movement of the sampling needle 31 and the injection needle 32. This reduces tensile stress on the first connecting tube 33 and prevents breakage and leakage.

[0116] To improve the accuracy of chemical addition, refer to Figure 3 The sampling device 30 also includes a flow control pump 34. This pump provides suction power for the sampling needle 31 to extract the chemical reagent from the first container 61. It also controls the flow rate and flow velocity of the extracted chemical reagent, thereby controlling the amount of chemical reagent added. For example, the flow control pump 34 can be a peristaltic pump. Peristaltic pumps offer high flow regulation accuracy, are compact, and lightweight, improving sampling accuracy and facilitating easy installation.

[0117] Of course, the type of the flow control pump 34 is not limited to this. In other embodiments, the flow control pump 34 can also be a diaphragm pump, a gear pump, a plunger pump, a screw pump, an electromagnetic pump, a proportional pump, etc., as long as it can achieve flow control and quantitative sampling of chemical reagents.

[0118] See also Figure 3 The flow control pump 34 includes a pump body 341 and a controller 342. The controller 342 is electrically connected to the pump body 341. The controller 342 can be used to control the opening and closing of the pump body 341 and can be used to adjust the speed of the pump body 341, thereby controlling the flow rate and flow velocity. For example, the controller 342 can be a programmable logic controller (PLC).

[0119] In this embodiment, the controller 342 may be a unit independent of the pump body 341. In other embodiments, the controller 342 may also be integrated into the pump body 341.

[0120] In some embodiments, see Figure 1The chemical digestion treatment system 100 also includes a control chamber 80, and the flow control pump 34 can be arranged in the control chamber 80. The control chamber 80 can be arranged in the box body 10. Exemplarily, the control chamber 80 can be arranged on the top of the second bracket 22. Alternatively, the control chamber 80 can also be arranged on the top of the first bracket 21. The control chamber 80 can provide protection for the flow control pump 34 such as waterproofing, dustproofing, and anti-collision, and can effectively protect the flow control pump 34, which is conducive to extending the service life of the flow control pump 34; on the other hand, it can also make the layout in the box body 10 more neat and orderly.

[0121] In order to observe the working condition of the flow control pump 34, please refer to Figure 1 The control chamber 80 has a transparent observation window 81. Furthermore, the control chamber 80 is also provided with a control panel 82, through which the staff can send commands to the flow control pump 34 to control the opening and closing of the flow control pump 34 and adjust the flow rate.

[0122] The driving device 40 is used to drive the sampling device 30 to move relative to the mounting frame 20, so that the sampling device 30 can move to a target position to complete operations such as sampling and cleaning.

[0123] In some embodiments, see Figure 2 The drive device 40 includes a first drive assembly 41 and a second drive assembly 42. The first drive assembly 41 can be mounted on the first bracket 21 and is used to drive the sampling needle 31 to move relative to the first bracket 21, so that the sampling needle 31 can move to the target position. The second drive assembly 42 can be mounted on the second bracket 22 and is used to drive the injection needle 32 to move relative to the second bracket 22, so that the injection needle 32 can move to the target position.

[0124] See also Figure 4-Figure 5 , Figure 4 for Figure 1 The schematic diagram of the assembly of the first driving component 41 and the first bracket 21 in the chemical digestion treatment system 100 is shown. Figure 5 for Figure 1 A perspective view of the first driving assembly 41 in the chemical digestion treatment system 100 is shown. The first driving assembly 41 includes a first driving unit 411, a second driving unit 412 and a third driving unit 413.

[0125] The first drive unit 411 is connected to the sampling needle 31 and is used to drive the sampling needle 31 to move in a first direction e1 relative to the first support 21. The second drive unit 412 is connected to the first drive unit 411 and is used to drive the first drive unit 411 to move in a second direction e2 relative to the first support 21, thereby driving the sampling needle 31 to move in the second direction e2. The third drive unit 413 is connected to the first drive unit 411 and the sampling needle 31 and is used to drive the sampling needle 31 to move in a height direction of the first support 21. The third drive unit 413 can move together with the first drive unit 411.

[0126] In this way, the first driving unit 411 and the second driving unit 412 can drive the sampling needle 31 to move along a plane perpendicular to the Z-axis direction (that is, the XY plane), so that the sampling needle 31 can move to above the first container 61 at different positions, and the third driving unit 413 can drive the sampling needle 31 to move in the up and down directions, so that the sampling needle 31 can extend into the first container 61 to extract the chemical reagent in the first container 61.

[0127] In some embodiments, see Figure 5 The first drive unit 411 includes a first drive rod 4111, a first drive member 4112, and a first moving member 4113. The first drive rod 4111 extends along a first direction e1. The first drive member 4112 is connected to the first drive rod 4111 and is configured to drive the first drive rod 4111 to rotate about its own axis. The axis of the first drive rod 4111 extends along the first direction e1.

[0128] Illustratively, the first driving member 4112 includes a first output shaft 4112a, to which the first driving rod 4111 is connected. When the first driving member 4112 is in operation, the first output shaft 4112a rotates relative to the first bracket 21, thereby driving the first driving rod 4111 to rotate. The first driving member 4112 may be a motor. For example, the first driving member 4112 may be a stepper motor, a servo motor, or the like. This allows for precise positioning of the sampling needle 31.

[0129] In order to drive the first moving member 4113 to move back and forth along the first direction e1, the first driving member 4112 is a bidirectional motor. Of course, in other embodiments, the first driving member 4112 can be a unidirectional motor. In this case, the first moving member 4113 can be moved back and forth by two first driving members 4112 with opposite directions.

[0130] The first moving member 4113 is threadedly engaged with the first driving rod 4111. The sampling needle 31 is connected to the first moving member 4113. For details, please refer to Figure 6 , Figure 6 for Figure 5A cross-sectional view of the first drive assembly 41 taken along line AA is shown. The first movable member 4113 has a first threaded hole K1, which is threadably connected to the first drive rod 4111. In this way, the first drive rod 4111 and the first movable member 4113 can form a screw-nut structure. When the first drive member 4112 drives the first drive rod 4111 to rotate, the first movable member 4113 can move in the first direction e1, thereby driving the sampling needle 31 in the first direction e1. This simple structure is easy to control.

[0131] In some embodiments, see Figure 5 and Figure 6 The first driving unit 411 further includes a first limiting rod 4114, which is arranged parallel to and spaced apart from the first driving rod 4111. For example, the first limiting rod 4114 and the first driving rod 4111 may be arranged in the height direction of the first bracket 21. In other embodiments, the first limiting rod 4114 and the first driving rod 4111 may also be arranged in the second direction e2.

[0132] The first moving member 4113 is slidably engaged with the first limiting rod 4114. For example, see Figure 6 The first movable member 4113 is provided with a first limiting hole K2, which is passed through the first limiting rod 4114. Thus, the first limiting hole K2 cooperates with the first limiting rod 4114 to guide the movement direction of the first movable member 4113. This not only prevents the first movable member 4113 from rotating relative to the first bracket 21, but also improves the stability of the movement of the first movable member 4113, allowing the sampling needle 31 to move smoothly along the first direction e1.

[0133] It is understandable that in other embodiments, the first drive unit 411 and the sampling needle 31 can also achieve transmission through at least one of a rotational connection, a sliding connection, a gear meshing transmission connection, a sprocket transmission connection, and a cam mechanism transmission connection, as long as the first drive unit 411 can drive the sampling needle 31 to move relative to the first bracket 21 along the first direction e1.

[0134] See also Figure 5 Combined with Figure 7 , Figure 7 for Figure 5 The first drive assembly 41 is shown in a cross-sectional view taken along line BB. The second drive unit 412 includes a second drive rod 4121, a second driving member 4122, and a second movable member 4123. The second drive rod 4121 extends along a second direction e2. The second driving member 4122 is connected to the second drive rod 4121 and is configured to drive the second drive rod 4121 to rotate about its own axis. The axis of the second drive rod 4121 extends along the second direction e2.

[0135] For example, see Figure 7 The second driving member 4122 has a second output shaft 4122a, and the second driving rod 4121 is connected to the second output shaft 4122a. When the second driving member 4122 is in operation, the second output shaft 4122a can rotate relative to the first bracket 21, thereby driving the second driving rod 4121 to rotate. The second driving member 4122 can be fixed to the first frame 211.

[0136] The second driving member 4122 may be a motor. For example, the second driving member 4122 may be a stepping motor, a servo motor, etc. The second driving member 4122 may be a unidirectional single motor or a bidirectional motor.

[0137] The second movable member 4123 is threadedly engaged with the second drive rod 4121, and the first drive unit 411 is connected to the second movable member 4123. Exemplarily, the first drive member 4112 and the first limiting rod 4114 are both connected to the first movable member 4113. The second movable member 4123 and the first movable member 4113 can be arranged in the first direction e1. In this way, the second drive rod 4121 and the second movable member 4123 can be formed into a screw-nut structure. When the second drive member 4122 drives the second drive rod 4121 to rotate, the second movable member 4123 can move relative to the second bracket 22 along the second direction e2, thereby driving the first drive unit 411 and the sampling needle 31 to move along the first direction e1. The structure is simple and easy to control.

[0138] In some embodiments, see Figure 5 Combined with Figure 7 The second driving unit 412 includes a second limiting rod 4124, which is arranged parallel to and spaced apart from the second driving rod 4121. For example, the second limiting rod 4124 and the second driving rod 4121 can be arranged in the height direction of the first bracket 21. In other embodiments, the second limiting rod 4124 and the second driving rod 4121 can also be arranged in the first direction e1.

[0139] The second movable member 4123 is slidably engaged with the second limiting rod 4124. The connection between the second movable member 4123 and the second limiting rod 4124 can be designed with reference to the connection between the first movable member 4113 and the first limiting rod 4114, and will not be described in detail here. In this way, the second limiting rod 4124 can guide the movement direction of the second movable member 4123. On the one hand, this can prevent the second movable member 4123 from rotating relative to the first bracket 21, and on the other hand, it can improve the smoothness of the movement of the second movable member 4123, allowing the sampling needle 31 to move smoothly along the second direction e2.

[0140] In some embodiments, see Figure 4-Figure 5 There are multiple first drive units 411, and the multiple first drive units 411 correspond one-to-one to the multiple sampling needles 31. Exemplarily, there are four first drive units 411 and four sampling needles 31. The multiple first drive members 4112 in the multiple first drive units 411 are arranged along the circumference of the first bracket 21. In this way, each first drive unit 411 can move along the first direction e1 through the sampling needle 31 corresponding to it, and the movements of different sampling needles 31 are decoupled from each other and do not interfere with each other. Therefore, different sampling needles 31 can work simultaneously, which is conducive to improving sampling efficiency and meeting the sampling requirements of different chemical reagents.

[0141] On this basis, in order to simplify the structure of the first driving component 41, please refer to Figure 5 Combined with Figure 6 The plurality of first drive units 411 include two first drive units 411 arranged in the first direction e1. The first moving member 4113 of one of the two first drive units 411 slides with the first drive rod 4111 of the other first drive unit 411. The first moving member 4113 of the other first drive unit 411 slides with the first drive rod 4111 of the one of the two first drive units 411.

[0142] That is, the first driving rod 4111 of one of the two first driving units 411 is reused as the first limiting rod 4114 of the other first driving unit 411. The first limiting rod 4114 of one of the two first driving units 411 is reused as the first driving rod 4111 of the other first driving unit 411.

[0143] In this way, the two first drive units 411 arranged in the first direction e1 can share two rods, which is beneficial to reducing the number of parts of the first drive component 41 and simplifying the structure of the first drive component 41; on the other hand, it is also beneficial to simplify the assembly process of the first drive component 41 and improve assembly efficiency; on the other hand, it is also beneficial to reduce the space occupied by the first drive rod 4111 and the first limiting rod 4114, thereby reducing the overall space occupied by the first drive component 41.

[0144] See also Figure 4 Combined with Figure 5There are multiple second drive units 412. The multiple second drive units 412 correspond one-to-one to the multiple first drive units 411. Specifically, the number of second drive units 412 can be the same as the number of first drive units 411. The multiple second drive members 4122 in the multiple second drive units 412 are arranged along the circumference of the first bracket 21. For example, there are four second drive units 412, and the four second drive members 4122 in the four second drive units 412 can be fixed to the first support rod 2111, the second support rod 2112, the third support rod 2113, and the fourth support rod 2114, respectively.

[0145] In this way, each second drive unit 412 can drive the corresponding first drive unit 411 to move along the second direction e2, and the movements of different first drive units 411 are decoupled from each other and do not interfere with each other. Therefore, different sampling needles 31 can work at the same time, which is conducive to improving the sampling efficiency and meeting the sampling requirements of different chemical reagents.

[0146] In some embodiments, see Figure 5 Combined with Figure 7 The plurality of second drive units 412 include two second drive units 412 arranged in the second direction e2, wherein the second moving member 4123 of one of the two second drive units 412 is slidably engaged with the second drive rod 4121 of the other second drive unit 412. The second moving member 4123 of the other second drive unit 412 is slidably engaged with the second drive rod 4121 of the one of the two second drive units 412.

[0147] That is, the second driving rod 4121 of one of the two second driving units 412 can be reused as the second limiting rod 4124 of the other second driving unit 412. The second driving rod 4121 of the other second driving unit 412 of the two second driving units 412 can be reused as the second limiting rod 4124 of the other second driving unit 412.

[0148] In this way, the two second driving units 412 arranged in the second direction e2 can share two rods, which can further simplify the structure of the first driving assembly 41 and further reduce the space occupied by the first driving assembly 41.

[0149] See also Figure 8 , Figure 8 for Figure 5The diagram shows the assembly of the third drive unit 413, the sampling needle 31, and the first movable member 4113 in the first drive assembly 41. The third drive unit 413 includes a third drive member 4131 and a fixing member 4132. The third drive member 4131 is fixed to the first movable member 4113. The third drive member 4131 can be a motor. Exemplarily, the third drive member 4131 is a stepping motor, a cylinder, or the like. The third drive member 4131 has a telescopic shaft 4131a that can be extended and retracted along the height direction of the first bracket 21.

[0150] The fixing member 4132 is fixed to the telescopic shaft 4131a, and the sampling needle 31 is fixed to the fixing member 4132. For example, the fixing member 4132 can be in the form of a sheet or a plate. In this way, the difficulty of assembling the sampling needle 31 and the third driving unit 413 can be reduced.

[0151] In other embodiments, the sampling needle 31 may also be directly fixed to the telescopic shaft 4131a. In this case, the third driving unit 413 may include a fixing member 4132 or may not include the fixing member 4132.

[0152] In some embodiments, a first through hole K3 is provided on the fixing member 4132 , and a second through hole K4 is provided on the first movable member 4113 . The sampling needle 31 passes through the first through hole K3 and the second through hole K4 , so that the sampling needle 31 is connected to the first connecting tube 33 .

[0153] It is understandable that in other embodiments, the sampling needle 31 may be provided through the first through hole K3 but not through the second through hole K4, and the first connecting tube 33 may be provided through the second through hole K4, or the first connecting tube 33 may be provided through both the first through hole K3 and the second through hole K4, and the sampling needle 31 may not be provided through the first through hole K3. This is sufficient as long as the connection between the sampling needle 31 and the fixing member 4132 and the connection between the sampling needle 31 and the first connecting tube 33 can be achieved.

[0154] In some embodiments, the third driving member 4131 is disposed inside the first movable member 4113, and the fixing member 4132 is disposed outside the first movable member 4113. In other embodiments, both the third driving member 4131 and the fixing member 4132 may be disposed outside the first movable member 4113.

[0155] Based on any of the above embodiments, to accommodate first containers 61 of varying heights, the first drive assembly 41 is height-adjustable in the Z-axis direction. For example, the fixing position of the second drive member 4122 to the first bracket 21 is adjustable. The first bracket 21 is provided with multiple fixing positions at varying heights. During experiments, the second drive member 4122 can be fixed to a suitable fixing position based on actual needs, thereby securing the first drive assembly 41 to a suitable height. This helps reduce the travel of the sampling needle 31 in the Z-axis direction, thereby improving sampling efficiency.

[0156] In this embodiment, a three-dimensional track design is formed between the first drive rod 4111, the second drive rod 4121, and the third drive unit 413 in the first drive assembly 41. This allows for precise positioning of the sampling needle 31 based on the coordinate axis model, ensuring the range and accuracy of movement, thereby enabling precise sampling of chemical reagents in the first container 61 at different locations. This design is simple and ingenious.

[0157] The structure of the second drive component 42, the connection method between the second drive component 42 and the second bracket 22, and the connection method between the second drive component 42 and the sampling needle 32 can be designed with reference to the structure of the first drive component 41, the connection method between the first drive component 41 and the first bracket 21, and the connection method between the first drive component 41 and the sampling needle 31, respectively, and will not be repeated here.

[0158] The cleaning device 50 is used to clean the sampling device 30. For example, during an experiment, when multiple chemical reagents need to be sampled, the sampling device 30 can be cleaned by the cleaning device 50 before changing the chemical reagent to be sampled, or after the experiment is completed, to prevent the residual chemical reagent in the sampling needle 31 from contaminating other chemical reagents, thereby ensuring the purity of the reagent in the first container 61 (e.g., a reagent bottle).

[0159] See also Figure 9 , Figure 9 for Figure 1 The chemical digestion treatment system 100 is shown schematically behind the cover 12. The cleaning device 50 includes a cleaning tank 51 and a first waste liquid tank 52. Both the cleaning tank 51 and the first waste liquid tank 52 are located below the drive device 40. The cleaning tank 51 is used to hold a cleaning fluid, which is used to clean the sampling device 30. The cleaning fluid includes, but is not limited to, deionized water, ultrapure water, or other liquids that meet cleaning requirements. The first waste liquid tank 52 is used to hold waste liquid.

[0160] For example, the first waste liquid tank 52 can be used to contain waste liquid discharged by the sampling device 30. After the sampling device 30 extracts the cleaning liquid, the cleaning liquid can be discharged into the first waste liquid tank 52 to flush the sampling device 30.

[0161] In this way, by setting up the cleaning tank 51 and the first waste liquid tank 52, the sampling device 30 can be cleaned during the experiment, and different chemical reagents can be sampled through the cleaned sampling device 30. Under the premise of avoiding cross contamination between different chemical reagents, sampling of multiple different chemical reagents can be achieved, so that chemical reagents with complex proportions can be added during the experiment, making the chemical digestion treatment system 100 not only suitable for the scenario of adding a single chemical reagent, but also suitable for the scenario of adding multiple chemical reagents, which can expand the application scenario of the chemical digestion treatment system 100.

[0162] In some embodiments, the cleaning device 50 further includes a second waste liquid tank 53, which can be used to store waste liquid. For example, the second waste liquid tank 53 can be used to collect waste liquid from the first waste liquid tank 52, as well as cleaning liquid (i.e., waste liquid) contaminated by the sampling device 30 in the cleaning tank 51. During or after the experiment, the waste liquid in the second waste liquid tank 53 can be centrally processed. For example, the waste liquid can be transported to a waste liquid treatment device for purification to prevent environmental contamination.

[0163] It is understandable that, in other embodiments, the cleaning device 50 may not include the second waste liquid tank 53. In this case, the waste liquid generated during the experiment can be directly transported to the waste liquid treatment device for purification.

[0164] In some embodiments, cleaning fluid can be extracted through the sampling needle 31, and after flowing through the first connecting tube 33 to the sampling needle 32, the cleaning fluid can be discharged into the first waste liquid tank 52 through the sampling needle 32. In this case, the cleaning tank 51 can be disposed below the first drive assembly 41, and the first waste liquid tank 52 can be disposed below the second drive assembly 42.

[0165] It is understood that in other embodiments, the cleaning liquid can be extracted through the injection needle 32, and after the cleaning liquid flows through the first connecting tube 33 to the sampling needle 31, it can be discharged into the first waste liquid tank 52 through the sampling needle 31. In this case, the cleaning tank 51 can be disposed below the second drive assembly 42, and the first waste liquid tank 52 can be disposed below the first drive assembly 41.

[0166] In other embodiments, when the sampling device 30 includes only the sampling needle 31 but not the injection needle 32, the cleaning fluid extracted by the sampling needle 31 is then discharged into the first waste liquid tank 52. In this case, the drive device 40 can include only the first drive assembly 41, without the second drive assembly 42. Therefore, both the cleaning tank 51 and the first waste liquid tank 52 can be disposed below the first drive assembly 41 (i.e., the drive device 40).

[0167] In this embodiment, the example of extracting the cleaning liquid by the sampling needle 31 and discharging it by the injection needle 32 is used for description, but this should not be understood as a limitation to the present application.

[0168] See also Figure 9 The cleaning device 50 further includes a liquid supply device 54 , and the cleaning tank 51 is communicated with the liquid supply device 54 so as to transport the cleaning liquid into the cleaning tank 51 through the liquid supply device 54 .

[0169] In some embodiments, the liquid supply device 54 may include a cleaning liquid production device 541 and a cleaning liquid storage tank 542. The cleaning liquid production device 541 is used to produce cleaning liquid. The cleaning liquid storage tank 542 is used to store the cleaning liquid. The cleaning liquid produced by the cleaning liquid production device 541 can be transferred to the cleaning liquid storage tank 542 for transfer or temporary storage.

[0170] Illustratively, the cleaning liquid manufacturing equipment 541 may be located outside the box body 10 , and the cleaning liquid storage tank 542 may be disposed on the carrying plate 11 .

[0171] It is understandable that, in other embodiments, the liquid supply device 54 may not include either the cleaning liquid manufacturing equipment 541 or the cleaning liquid storage tank 542 .

[0172] See also Figure 10 Combined with Figure 11 , Figure 10 for Figure 9 A perspective view of the cleaning tank 51 in the chemical digestion treatment system 100 is shown. Figure 11 for Figure 10 The cross-sectional view of the cleaning tank 51 shown in FIG. Figure 10 Components of the cleaning tank 51 that are not visible are indicated by dashed lines.

[0173] The cleaning tank 51 has a first cavity Q1 and a second cavity Q2. The first cavity Q1 has a first inlet Q11, a first open port Q12, and an overflow port Q13. The first inlet Q11 is connected to the cleaning liquid supply device 54, the first open port Q12 can face the drive device 40 (e.g., the first drive assembly 41), and the overflow port Q13 is connected to the second cavity Q2.

[0174] The component to be cleaned (e.g., the sampling needle 31) can be inserted into the first cavity Q1 through the first opening Q12 to extract cleaning liquid, thereby flushing the interior of the sampling device 30. The overflow port Q13 is used to allow excess liquid to flow out when the liquid in the first cavity Q1 reaches a certain level.

[0175] For further information, see Figure 9The liquid supply device 54 further includes a delivery pump 543, which is connected between the liquid supply device 54 and the cleaning tank 51 and is used to pump the cleaning liquid in the liquid supply device 54 into the first cavity Q1 of the cleaning tank 51. The delivery pump 543 includes, but is not limited to, a peristaltic pump, a diaphragm pump, a gear pump, a plunger pump, a screw pump, an electromagnetic pump, a proportional pump, etc. Exemplarily, the pump inlet of the delivery pump 543 is connected to the cleaning liquid storage tank 542, and the pump outlet of the delivery pump 543 is connected to the first inlet Q11 of the first cavity Q1.

[0176] The cleaning liquid production equipment 541 and the cleaning liquid storage tank 542, the pump inlet and the cleaning liquid storage tank 542, and the pump outlet and the first inlet Q11 can all be connected via a delivery pipe 55. The delivery pipe 55 can be a flexible pipe or a rigid pipe. Exemplarily, the material of the delivery pipe 55 includes at least one of plastic, rubber, silicone, and metal.

[0177] During the cleaning process, the delivery pump 543 remains in an open state, allowing cleaning liquid to be continuously injected into the first cavity Q1 from the first inlet Q11, thereby continuously replenishing the first cavity Q1. The cleaning liquid can always fill the first cavity Q1, and the excess cleaning liquid can flow from the overflow port Q13 to the second cavity Q2. This ensures that the cleaning liquid in the first cavity Q1 remains fluid, and any impurities such as residual chemicals in the first cavity Q1 can be promptly discharged, ensuring the cleanliness of the cleaning liquid in the first cavity Q1 and, therefore, ensuring the cleaning effect.

[0178] In some embodiments, see Figure 11 , the first inlet Q11 is located at the bottom of the first chamber Q1. In this way, the cleaning liquid can flow from bottom to top (for example Figure 11 ) flows toward the first cavity Q1, which can increase the impact force of the cleaning liquid flowing into the first cavity Q1, so that the dirt (such as residual chemical reagents, etc.) in the first cavity Q1 can be evenly mixed with the cleaning liquid, or the dirt in the cleaning cavity can be carried to a higher position as the water flow rises, making it easier for the dirt to be discharged together with the cleaning liquid, and effectively preventing the dirt from being deposited in the first cavity Q1, thereby facilitating improving the cleanliness of the cleaning liquid in the first cavity Q1.

[0179] Please continue reading Figure 11The second chamber Q2 has a first outlet Q21, which is used to discharge the liquid in the second chamber Q2. For example, the first outlet Q21 can be connected to the second waste liquid tank 53. The first outlet Q21 and the second waste liquid tank 53 can be connected via a delivery pipe 55. In this way, the liquid in the second chamber Q2 can be discharged to the second waste liquid tank 53. For another example, the first outlet Q21 can also be connected to the first waste liquid tank 52. In this way, the liquid in the second chamber Q2 can first be discharged to the first waste liquid tank 52, and then discharged from the first waste liquid tank 52 to the second waste liquid tank 53. For another example, the first outlet Q21 can also be connected to a wastewater treatment device.

[0180] In some embodiments, see Figure 11 The second cavity Q2 has a second open port Q22, and the direction of the second open port Q22 is the same as that of the first open port Q12. Specifically, the second open port Q22 can be oriented toward the drive device 40. Exemplarily, the second open port Q22 can be oriented toward the first drive assembly 41. In this way, the component to be cleaned (such as the sampling needle 31) can be extended into the second cavity Q2 from the second open port Q22 and preliminarily cleaned using the liquid in the second cavity Q2. This can fully utilize the liquid in the second cavity Q2 to achieve multiple cleanings. For example, before cleaning the sampling device 30 with the liquid in the first cavity Q1, the sampling device 30 can be cleaned with the liquid in the second cavity Q2 first. This can increase the number of cleanings, which not only helps to improve the cleaning effect, but also helps to reduce the amount of cleaning liquid used, thereby saving cleaning liquid.

[0181] In some embodiments, see Figure 10 Combined with Figure 11 The top of the first cavity Q1 is completely opened to form a first opening Q12. In this case, the first opening Q12 can be reused as an overflow port Q13. This, on the one hand, helps simplify the structure of the cleaning tank 51 and increases the speed at which the liquid in the first cavity Q1 overflows into the second cavity Q2, thereby shortening the replacement cycle of the cleaning liquid in the first cavity Q1 and thereby improving the purity of the cleaning liquid in the first cavity Q1. On the other hand, it also helps increase the opening area of ​​the first opening Q12, thereby reducing the positional accuracy of the sampling needle 31 waiting to be cleaned in the XY plane, thereby shortening the cleaning time and improving the cleaning efficiency.

[0182] Of course, in other embodiments, the first open port Q12 and the overflow port Q13 may also be independent of each other. In this case, the top of the first cavity Q1 may be completely open to form the first open port Q12, or the top of the first cavity Q1 may be partially open to form the first open port Q12.

[0183] In order to further improve the cleaning effect and ensure the cleanliness of the sampling device 30, in some embodiments, refer to Figure 10-11 The number of the first cavity Q1 is multiple. For example, the multiple first cavities Q1 can be spaced apart and arranged around the circumference of the first outlet Q21. In this way, multiple and multi-stage cleaning of the sampling device 30 can be achieved, thereby further improving the cleaning effect.

[0184] In some embodiments, when there are two first cavities Q1, the first cleaning can be performed using the liquid in the second cavity Q2, the second cleaning can be performed using the liquid in one of the first cavities Q1, and the third cleaning can be performed using the liquid in the other first cavity Q1. In this way, a three-stage multi-stage cleaning of the sampling needle 31 can be achieved, which can increase the number of cleanings and extend the rehydration time of the cleaning liquid in the other first cavity Q1, thereby improving the purity of the cleaning liquid used for the third cleaning and ensuring the cleaning effect. This allows the chemical digestion treatment system 100 to simultaneously extract different chemical reagents in series, realize the addition of multiple chemical reagents, and avoid cross-contamination between different chemical reagents.

[0185] Of course, the number of the first cavities Q1 can also be three, four, five or more.

[0186] In order to form a multi-cavity structure in the cleaning tank 51, please refer to Figure 10 and Figure 11 The cleaning tank 51 includes an outer shell 511 and an inner shell 512. The inner shell 512 is disposed inside the outer shell 511 and divides the space inside the outer shell 511 into a first cavity Q1 and a second cavity Q2. The first cavity Q1 is formed in the inner shell 512. The height of the inner shell 512 is lower than that of the outer shell 511.

[0187] In some embodiments, the shell 511 includes a first side panel 5111 and a first bottom panel 5112 . The first side panel 5111 is cylindrical. The first bottom panel 5112 is fixed to the first side panel 5111 , and a receiving cavity is formed between the first side panel 5111 and the first bottom panel 5112 .

[0188] The inner shell 512 is disposed within the outer shell 511. Illustratively, the inner shell 512 is cylindrical and fixed to the first base plate 5112. Illustratively, the inner shell 512 is sealed to the first base plate 5112. The first base plate 5112 has a first surface, and the inner shell 512 is disposed on the first surface. The first side panel 5111 protrudes from the first surface to a smaller extent than the first side panel 5111 protrudes from the first surface.

[0189] In this way, a first cavity Q1 can be enclosed between the inner shell 512 and the first bottom plate 5112, and the first bottom plate 5112 can be reused as the bottom plate of the first cavity Q1, which is beneficial to simplify the structure of the cleaning tank 51, reduce the material used in the cleaning tank 51, and help reduce the cost of the cleaning tank 51.

[0190] In this embodiment, the entire inner shell 512 is spaced apart from the first side panel 5111. This allows the second cavity Q2 to surround the outer periphery of the first cavity Q1, making the placement of the overflow port Q13 more flexible. Furthermore, the overflow port Q13 can be designed as a closed loop, which helps increase the area of ​​the overflow port Q13 and, in turn, increases the speed at which the liquid in the first cavity Q1 overflows into the second cavity Q2, thereby shortening the replacement cycle of the cleaning liquid in the first cavity Q1.

[0191] It is understood that in other embodiments, a portion of the inner shell 512 may be connected to the first side panel 5111, and a portion of the inner shell 512 may be spaced apart from the first side panel 5111. It is sufficient as long as at least a portion of the inner shell 512 is spaced apart from the first side panel 5111.

[0192] In some embodiments, the outer shell 511 is made of at least one of metal, plastic, glass, and ceramic. Similarly, the inner shell 512 may also be made of at least one of metal, plastic, glass, and ceramic. The material of the inner shell 512 may be the same as or different from that of the outer shell 511.

[0193] In some embodiments, the inner shell 512 and the outer shell 511 are formed as a single unitary structure. That is, the inner shell 512 and the outer shell 511 are integrally molded. For example, the inner shell 512 and the outer shell 511 can be manufactured using at least one of injection molding, forging, casting, and computer numerical control (CNC) milling. This simplifies the manufacturing process of the cleaning tank 51, omitting assembly steps, and improving the connection strength between the inner shell 512 and the outer shell 511, as well as the sealing performance of the first cavity Q1.

[0194] In other embodiments, the inner shell 512 and the outer shell 511 may also be split structures, that is, the inner shell 512 and the outer shell 511 are separately processed and formed, and then the inner shell 512 is fixed to the outer shell 511 by bonding, clamping, screw connection, etc.

[0195] In some embodiments, see Figure 10-11 The cleaning tank 51 further includes a protrusion 513, which protrudes from the surface of the first bottom plate 5112 facing away from the inner shell 512. The interior of the protrusion 513 is hollow to form a third cavity Q3, which is connected to the second cavity Q2. For example, see Figure 11 The third cavity Q3 is connected to the first outlet Q21 and has a second outlet Q31.

[0196] Exemplarily, the raised portion 513 includes a second side panel 5131 and a second bottom plate 5132 , the second bottom plate 5132 is opposite to and spaced apart from the first bottom plate 5112 , the second side panel 5131 surrounds the periphery of the first outlet Q21 , and the second side panel 5131 is connected between the first bottom plate 5112 and the second bottom plate 5132 .

[0197] In this way, the liquid in the second cavity Q2 can flow to the third cavity Q3 at a lower position through the first outlet Q21, and can be discharged to the second waste liquid tank 53, the first waste liquid tank 52 or the wastewater treatment device through the second outlet Q31, so as to facilitate the emptying of the liquid in the second cavity Q2 and avoid liquid residue in the second cavity Q2, thereby preventing dirt from corroding the cleaning tank 51 and extending the service life of the cleaning tank 51.

[0198] The connection method between the protrusion 513 and the outer shell 511 can be designed with reference to the connection method between the inner shell 512 and the outer shell 511, and will not be described in detail here.

[0199] Based on any of the above embodiments, the cleaning tank 51 can be an integrally formed part. This simplifies the processing of the cleaning tank 51, omits the assembly steps of the cleaning tank 51, and improves the sealing performance of each cavity in the cleaning tank 51 (e.g., the first cavity Q1, the second cavity Q2, the third cavity Q3, etc.).

[0200] In some embodiments, to increase the support area and stability of the cleaning tank 51, a portion of the first side panel 5111 surrounds the outer periphery of the second side panel 5131, and the first side panel 5111 is spaced apart from the second side panel 5131. The cleaning tank 51 also includes a connecting plate 514 connected between the second bottom plate 5132 and the first side panel 5111. The connecting plate 514 may be an annular plate. Alternatively, the connecting plate 514 may include multiple sub-plates spaced apart circumferentially around the second bottom plate 5132.

[0201] In this way, the cleaning tank 51 can be supported on the supporting plate 11, the first carrier 212, the second carrier 222 or the workbench through the connecting plate 514 and the second bottom plate 5132, which can improve the supporting stability of the cleaning tank 51 and prevent the cleaning tank 51 from tipping over.

[0202] In some embodiments, see Figure 11, an anti-corrosion layer 510 is provided on at least part of the inner wall surface of the second cavity Q2. Specifically, the anti-corrosion layer 510 can be provided on the entire inner wall surface of the second cavity Q2, or on part of the inner wall surface of the second cavity Q2. The anti-corrosion layer 510 can protect the cleaning tank 51 and prevent the cleaning tank 51 from being corroded. The anti-corrosion layer 510 can include but is not limited to a graphene coating, a polymer material coating, etc. The anti-corrosion layer 510 can be formed on the inner wall surface of the second cavity Q2 by chemical vapor deposition, or the anti-corrosion layer 510 can be provided on the inner wall surface of the second cavity Q2 by coating, bonding, etc.

[0203] Furthermore, at least a portion of the inner wall surface of the third cavity Q3 may also be provided with an anti-corrosion layer 510. Similarly, at least a portion of the inner wall surface of the first cavity Q1 may also be provided with an anti-corrosion layer 510.

[0204] To achieve automated control of the chemical digestion system 100, the chemical digestion system 100 includes a control device that can be used to send and receive instructions, allowing the chemical digestion system 100 to execute control commands according to preset logic. Specifically, the control device can be electrically connected to at least one of the sampling device 30, the drive device 40, and the ultrasonic water bath 70 to implement operations such as sampling, reaction, and cleaning during the chemical digestion process.

[0205] In some embodiments, the chemical digestion system 100 also includes a human-machine interface (HMI) that communicates with the control device. The HMI allows personnel to input control commands, such as starting / stopping equipment and adjusting parameter settings. After receiving the control commands from the HMI, the control device can control the specific experimental process based on these commands. This eliminates the need for personnel to wait on-site for operation, significantly shortens their contact time with chemical reagents, makes the experimental process safer, and improves the health of personnel.

[0206] See also Figure 12-14 , Figure 12-14 This is a setting interface for the human-machine interface provided in some embodiments of this application. Figure 12 As shown, Figure 12 This is the setting interface of the ultrasonic water bath 70. The staff can set the ultrasonic frequency, ultrasonic duration, and water bath set temperature through the setting interface of the ultrasonic water bath 70, and can also monitor the actual temperature in the water tank through this setting interface.

[0207] Among them, the unit of ultrasonic frequency, the unit of ultrasonic duration, and the unit of temperature can all be adjusted and designed according to actual needs.

[0208] like Figure 13 As shown, Figure 13 This is the settings interface for sampling and injection. This interface allows staff to set the reagent addition instructions for the second container 62 and the parameters for the chemical reagent in the first container 61. For example, the name of the chemical reagent and the amount of the chemical reagent in the first container 61 (e.g., volume, mass, etc.) can be set. There may be multiple first containers 61 and second containers 62, and the parameter configuration for the chemical reagent in each first container 61 and the addition instructions for each chemical reagent in each second container 62 can be set independently. This supports the addition of multiple test samples, greatly improving test efficiency, reducing human error, and promoting test consistency.

[0209] like Figure 14 As shown, Figure 14 This is the setup interface for the cleaning device 50. This interface allows staff to set parameters such as the sampling needle 31's range, the flow control pump 34's speed, and the delivery pump 543's speed, ensuring that the sampling device 30 can accurately sample according to test standards.

[0210] The control method of the chemical digestion treatment system 100 is introduced below.

[0211] See also Figure 15 , Figure 15 This is a control flow chart of the chemical decomposition treatment system 100 provided in some embodiments of the present application. In some embodiments, the control method of the chemical decomposition treatment system 100 includes:

[0212] Step S100: controlling the sampling device 30 to add a first reagent into a target container (eg, the second container 62);

[0213] Exemplarily, step S100 may include:

[0214] Step S101: controlling the sampling needle 31 to move to above the corresponding first container 61 through the first driving assembly 41, and controlling the sampling needle 31 to extend into the first container 61;

[0215] Step S102: controlling the injection needle 32 to move to the top of the corresponding target container through the second drive assembly 42, and controlling the injection needle 32 to approach the opening of the target container, or controlling the injection needle 32 to extend into the target container;

[0216] Step S103 : Turn on the flow control pump 34 , extract the first reagent through the sampling needle 31 , pump the reagent extracted by the sampling needle 31 into the injection needle 32 , and then add the first reagent into the target container through the injection needle 32 .

[0217] The order of step S101 and step S102 is irrelevant.

[0218] Step S200: Cleaning the sampling device 30; specifically, cleaning the sampling device 30 that has extracted the first reagent;

[0219] Exemplarily, step S200 may include:

[0220] Step S201: Pump cleaning liquid into the first cavity Q1 of the cleaning tank 51, and keep the delivery pump 543 in an open state;

[0221] Step S202: Controlling the sampling device 30 to extract liquid from the first cavity Q1 for secondary cleaning. For example, the sampling needle 31 can be controlled to move above the cleaning tank 51, and the injection needle 32 can be controlled to move above the first waste liquid tank 52. The sampling needle 31 can then be controlled to extract liquid from the first cavity Q1. This liquid flows into the injection needle 32 through the first connecting tube 33, and then is released into the first waste liquid tank 52 through the injection needle 32.

[0222] When there are multiple first cavities Q1 , the sampling device 30 can be controlled to sequentially extract the liquid in each first cavity Q1 for multiple cleanings.

[0223] In the embodiment where the second cavity Q2 includes the second opening Q22 , before controlling the sampling device 30 to extract the liquid in the first cavity Q1 , step S200 may further include: step S203 : controlling the sampling device 30 to extract the liquid in the second cavity Q2 for cleaning.

[0224] The order of step S201 and step S100 is irrelevant.

[0225] Step S300 : adding a second reagent into the target container through the cleaned sampling device 30 .

[0226] It is understandable that the sampling device 30 cleaned in step S300 may be the sampling device 30 cleaned in step S200, or may be the sampling device 30 that was cleaned after the last experiment and has not extracted any reagent during this experiment.

[0227] Step S400: After the sampling is completed, the sampling device 30 that has taken the reagent is cleaned.

[0228] In this way, during the experiment, the sampling device 30 can be automatically cleaned, so that sampling of multiple different chemical reagents can be achieved while avoiding cross-contamination between different chemical reagents. Furthermore, chemical reagents with complex proportions can be added during the experiment, which is conducive to expanding the application scenarios of the chemical digestion treatment system 100.

[0229] It is understood that in other embodiments, the control method of the chemical digestion treatment system 100 may not include at least one of step S300 and step S400. In this way, sampling of a single chemical reagent can be achieved.

[0230] The following describes the operation method of the chemical digestion treatment system 100 by taking the liquid phase method to test formaldehyde in the test sample as an example. The sample to be tested can be a sample that needs to be chemically tested. The samples to be tested include but are not limited to all structural parts that need to be tested in electronic and electrical products, cosmetics, children's toys, household items, etc. For example, the sample to be tested can be a watch strap, a battery cover of an electronic device, a middle frame of an electronic device, a protective case, etc. The material of the sample to be tested can include at least one of leather, cloth, plastic, glass fiber, carbon fiber, metal, silicone, etc. In this embodiment, the sample to be tested is a leather watch strap as an example for explanation.

[0231] (1) Providing a plurality of samples to be tested, placing the plurality of samples to be tested into corresponding test tubes (i.e., the second container 62), and placing the test tubes containing the samples to be tested on the second carrier 222;

[0232] For example, the test sample may be a leather watch strap. The colors of the different test samples may be different or the same. The number of test samples may be six. The six test samples may be placed in test tubes 1, 2, 3, 4, 5, and 6, respectively. The length of the test sample may be 3 mm to 5 mm, and the weight of each test sample in each test tube may be 1 g to 2 g.

[0233] When preparing the samples to be tested, 20g of leather from the front and back of each watch strap can be taken respectively, cut into small sections of 3mm-5mm, and then sieved to ensure that the size of the samples to be tested is uniform.

[0234] (2) The three chemical reagents required for chemical digestion are placed in fixed slots 1, 2, and 3 of the first sample rack 212, respectively. For example, the three chemical reagents may be sodium dodecylsulfonate, acetonitrile, and N,N-dimethyl-p-phenylenediamine hydrochloride (NNDPH).

[0235] (3) Open the human-machine interface and perform the following operations:

[0236] (31) In the ultrasonic water bath 70 setting interface, set the ultrasonic frequency to 50 kHz, the water bath temperature to 40 °C, and the ultrasonic duration to 60 min;

[0237] (32) Set the chemical reagent parameters in fixed tank No. 1, fixed tank No. 2 and fixed tank No. 3 respectively in the setting interface of the sampling device 30. There is no requirement for the setting order;

[0238] (33) In the setting interface of the sampling device 30, set the reagent addition instructions for test tubes 1 to 6. For example, the addition instruction for test tube 1 can be set as: add 5 mL of sodium dodecyl sulfate, 4 mL of acetonitrile, and 0.5 mL of N,N-dimethyl-p-phenylenediamine hydrochloride. Similarly, set the reagent addition instructions for test tubes 1 to 6;

[0239] (34) According to the sampling requirements of the chemical reagent, a sampling device 30 with an appropriate range specification is selected, and parameters such as the rate of the flow control pump 34 and the rate of the delivery pump 543 are set in the setting interface of the cleaning device 50.

[0240] After the above settings are completed, the chemical digestion treatment system 100 can be started and operated, and processing operations of different samples in different proportions can be performed simultaneously to complete the batch test reagent configuration.

[0241] According to the description of the above embodiments, the chemical digestion treatment system 100 in the embodiment of the present application can add chemical reagents in complex proportions to multiple test samples during the experiment, reduce the complexity of manual operations and labor intensity, improve detection speed, accuracy and efficiency, and truly achieve zero contact with chemical reagents throughout the entire process during the detection and analysis process, realize a green experimental process, and greatly protect the health and safety of the staff.

[0242] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0243] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A chemical digestion treatment system, characterized in that: include: Mounting rack; The sampling device comprises a sampling needle, an injection needle and a first connecting tube, wherein the first connecting tube is connected between the outlet of the sampling needle and the inlet of the injection needle; A drive device, comprising a first drive assembly and a second drive assembly, wherein the first drive assembly is connected to the sampling needle and is used to drive the sampling needle to move relative to the mounting frame, and the second drive assembly is connected to the injection needle and is used to drive the injection needle to move relative to the mounting frame; a cleaning tank located below the driving device, the cleaning tank being used to contain a cleaning liquid used to clean the sampling device; the cleaning tank comprising a first cavity and a second cavity, the first cavity having a first inlet, a first open port, and an overflow port, the first inlet being connected to the cleaning liquid supply device, and the first open port facing the driving device; The second cavity is communicated with the overflow port, and the second cavity has a first outlet and a second open port, wherein the first outlet is used to discharge the liquid in the second cavity; The second opening faces the driving device, and the sampling device can extend from the second opening into the second cavity to extract liquid in the second cavity for cleaning; The second cavity surrounds the outer periphery of the first cavity; the cleaning tank includes an outer shell and an inner shell, the outer shell includes a first side panel and a first bottom plate, the first side panel is cylindrical, and the first bottom plate is fixed to the first side panel; The inner shell is cylindrical and fixed to the first bottom plate. At least a portion of the inner shell is separated from the first side panel. The first cavity is located within the inner shell. The first side panel, the first bottom plate, and the inner shell form the second cavity. The first waste liquid tank is located below the driving device and is used to contain waste liquid.

2. The chemical digestion treatment system according to claim 1, characterized in that: There are multiple first cavities.

3. The chemical digestion treatment system according to claim 1, characterized in that: An anti-corrosion layer is provided on at least part of the inner wall surface of the second cavity; and / or an anti-corrosion layer is provided on at least part of the inner wall surface of the first cavity.

4. The chemical digestion treatment system according to any one of claims 1 to 3, characterized in that: The cleaning tank also includes: The raised portion is located on a side of the first bottom plate facing away from the inner shell. The interior of the raised portion is hollow to form a third cavity. The third cavity is communicated with the first outlet and has a second outlet.

5. The chemical digestion treatment system according to claim 4, characterized in that: The raised portion comprises: a second bottom plate, opposite to and spaced apart from the first bottom plate; a second side panel, the second side panel surrounding an outer periphery of the first outlet and connected between the first bottom panel and the second bottom panel; The cleaning tank further includes a connecting plate connected between the first side panel and the second bottom panel.

6. The chemical digestion treatment system according to any one of claims 1 to 3 and 5, characterized in that: The cleaning tank is an integrally formed part.

7. The chemical digestion treatment system according to any one of claims 1 to 3 and 5, characterized in that: The flow control pump comprises a first pump port and a second pump port, wherein the first pump port is communicated with the outlet of the sampling needle, and the second pump port is communicated with the inlet of the injection needle.

8. The chemical digestion treatment system according to any one of claims 1 to 3 and 5, characterized in that: The first drive assembly comprises: a first driving unit connected to the sampling needle, the first driving unit being used to drive the sampling needle to move relative to the mounting frame along a first direction; a second driving unit connected to the first driving unit, the second driving unit being configured to drive the first driving unit to move relative to the mounting frame along a second direction, thereby driving the sampling needle to move along the second direction; a third driving unit connected to the first driving unit and the sampling needle, the third driving unit being configured to drive the sampling needle to move relative to the mounting frame along a height direction of the mounting frame, and the third driving unit being capable of moving together with the first driving unit; The first direction intersects with the second direction, and both the first direction and the second direction are perpendicular to the height direction of the mounting bracket.

9. The chemical digestion treatment system according to claim 8, characterized in that: The first driving unit further includes: a first driving rod extending along a first direction; a first driving member connected to the first driving rod and configured to drive the first driving rod to rotate around its own axis; A first moving member is threadably engaged with the first driving rod, and the sampling needle is connected to the first moving member.

10. The chemical digestion treatment system according to claim 9, characterized in that: The first driving unit further includes a first limiting rod, which is parallel to and spaced apart from the first driving rod, and the first moving member is in sliding engagement with the first limiting rod.

11. The chemical digestion treatment system according to claim 9, characterized in that: There are a plurality of first driving units, and the plurality of first driving units include two first driving units arranged in the first direction; The first moving member of one of the two first driving units arranged in the first direction is slidably engaged with the first driving rod of the other first driving unit.

12. The chemical digestion treatment system according to claim 8, characterized in that: The second drive unit includes: a second driving rod extending along the second direction; a second driving member fixed to the mounting frame, the second driving member being connected to the second driving rod and configured to drive the second driving rod to rotate around its own axis; A second moving member is threadably engaged with the second driving rod, and the first driving unit is connected to the second moving member.

13. The chemical digestion treatment system according to claim 8, characterized in that: The third driving unit includes: The third driving member is fixed to the first moving member, and the third driving member has a telescopic shaft that can be telescoped along the height direction of the mounting frame, and the sampling needle is connected to the telescopic shaft.

14. The chemical digestion treatment system according to any one of claims 1-3, 5, and 9-13, characterized in that: include: An ultrasonic water bath is located below the second driving assembly.

15. The chemical digestion treatment system according to any one of claims 1-3, 5, 9-13, characterized in that: include: a delivery pump, the delivery pump being used to pump the cleaning liquid into the cleaning tank; A control device is electrically connected to at least one of the sampling device, the delivery pump, and the driving device.

16. A control method for a chemical digestion treatment system according to any one of claims 1 to 15, characterized in that: include: controlling the sampling device to add a first reagent into the target container; Cleaning the sampling device: controlling the sampling device that has extracted the first reagent to extract the cleaning liquid in the cleaning tank, and discharging the cleaning liquid in the sampling device into the first waste liquid tank.

17. The control method of the chemical digestion treatment system according to claim 16, characterized in that: Also includes: The cleaned sampling device is controlled to add a second reagent into the target container.

18. The control method of a chemical digestion treatment system according to claim 16 or 17, characterized in that: Cleaning the sampling device comprises: Pumping cleaning fluid into the first cavity through a delivery pump, and keeping the delivery pump in an open state; The sampling device is controlled to extract the liquid in the first cavity for cleaning.

19. The control method of the chemical digestion treatment system according to claim 18, characterized in that: Before controlling the sampling device to extract the liquid in the first cavity for cleaning, the method further includes: The sampling device is controlled to extract the liquid in the second cavity for cleaning.

20. The control method of the chemical digestion treatment system according to claim 18, characterized in that: Controlling the sampling device to extract liquid in the first cavity for cleaning includes: One of the sampling needle and the injection needle is controlled to extract the liquid in the first cavity. After the liquid flows into the other of the sampling needle and the injection needle through the first connecting tube, it is discharged into the first waste liquid tank through the other of the sampling needle and the injection needle.

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