Chemical digestion treatment system and control method thereof

Abstract

The invention discloses a chemical digestion treatment system and a control method thereof, relates to the technical field of detection, and not only can realize addition of a single chemical reagent, but also can realize addition of various chemical reagents. Wherein the chemical digestion treatment system comprises a mounting frame, a sampling device, a driving device, a cleaning tank and a first waste liquid tank, and the driving device is arranged on the mounting frame, connected to the sampling device and used for driving the sampling device to move relative to the mounting frame; the cleaning tank is located below the driving device and used for containing cleaning liquid, and the cleaning liquid is used for cleaning the sampling device; the first waste liquid tank is located below the driving device and used for containing 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] At present, the chemical digestion process involves the use of many organic and inorganic chemical reagents that are harmful to the human body. Since the sampling device can realize automatic sampling, compared with the manual sampling method using auxiliary equipment such as pipettes and straws, it can reduce the contact between the human body and the reagents and reduce the harm of the reagents to the human body. Therefore, the sampling device is more and more widely used in environmental protection 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: In a 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, wherein 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 contain 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 contain waste liquid.

[0006] 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. 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. 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.

[0007] 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 is connected to the overflow port, and the second cavity has a first outlet for discharging the liquid in the second cavity.

[0008] 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.

[0009] In a possible implementation of the first aspect, the first inlet is located at the bottom of the first cavity. In this way, the cleaning liquid can flow from bottom to top into the first cavity, which can increase the impact force of the cleaning liquid flowing into the first cavity, so that the dirt (such as residual reagents, etc.) in the first cavity can be evenly mixed with the cleaning liquid, or the dirt in the cleaning cavity can be brought to a higher position as the water flow rises, so that the dirt is discharged together with the cleaning liquid, which can effectively avoid the dirt from being deposited in the first cavity, thereby facilitating the improvement of the cleanliness of the cleaning liquid in the first cavity.

[0010] In a possible implementation of the first aspect, the second cavity includes a second open opening, and the second open opening faces the drive device. In this way, the part to be cleaned can be extended into the second cavity from the second open opening, and the liquid in the second cavity can be used for preliminary cleaning, so that the liquid in the second cavity can be fully utilized to achieve multiple cleanings. This can not only increase the number of cleanings, thereby improving the cleaning effect, but also help reduce the amount of cleaning liquid used, thereby saving cleaning liquid.

[0011] In a possible implementation of the first aspect, there are multiple first cavities. Exemplarily, the multiple first cavities can be arranged in the circumferential direction of the first outlet. In this way, multiple and multi-stage cleaning of the sampling device can be achieved, thereby further improving the cleaning effect.

[0012] In a possible implementation of the first aspect, the second cavity surrounds the outer circumference of the first cavity. In this way, the overflow port can be more flexible in location, and the overflow port can be designed as a closed ring, which is conducive to increasing the area of ​​the overflow port, thereby facilitating an increase in the speed at which the liquid in the first cavity overflows into the second cavity, and facilitating a shortening of the replacement cycle of the cleaning liquid in the first cavity.

[0013] In a possible implementation of the first aspect, an anti-corrosion layer is provided on at least part of the inner wall surface of the second cavity, which can protect the cleaning tank and prevent the cleaning tank from being corroded.

[0014] In a possible implementation of the first aspect, an anti-corrosion layer is provided on at least part of the inner wall surface of the first cavity, so as to further improve the anti-corrosion effect of the cleaning tank.

[0015] In a 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 plate, the first side panel is cylindrical, and the first bottom plate is fixed to the first side panel; the inner shell is cylindrical, the inner shell is fixed to the first bottom plate, at least part of the inner shell is separated from the first side panel, the first cavity is located in the inner shell, and the first side panel, the first bottom plate and the inner shell form a second cavity. In this way, the first cavity can be formed between the inner shell and the first bottom plate, and the first bottom plate can be reused as the bottom plate of the first cavity, which is conducive to simplifying the structure of the cleaning tank, reducing the materials used in the cleaning tank, and reducing the cost of the cleaning tank.

[0016] In a possible implementation of the first aspect, the cleaning tank further includes a protrusion located on a side of the first bottom plate facing away from the inner shell, the inner hollow of the protrusion forms a third cavity, the third cavity is connected to the first outlet, and the third cavity has a second outlet. The protrusion may partially protrude from the surface of the first bottom plate facing away from the inner shell. In this way, the liquid in the second cavity may flow to the third cavity at a lower position through the first outlet, which facilitates emptying the liquid in the second cavity and avoids liquid remaining in the second cavity, thereby facilitating corrosion of the cleaning tank by dirt and extending the service life of the cleaning tank.

[0017] In a possible implementation of the first aspect, the raised portion includes a second bottom plate and a second side panel, the second bottom plate is opposite to and spaced from the first bottom plate; the second side panel surrounds the outer periphery of the first outlet, and the second side panel is connected between the first bottom plate and the second bottom plate; the cleaning tank also includes a connecting plate, which is connected between the first side panel and the second bottom plate. In this way, the cleaning tank can be supported on the load-bearing plate, the first load rack, the second load rack or the workbench by the connecting plate and the second bottom plate, which can improve the support stability of the cleaning tank and prevent the cleaning tank from tipping over.

[0018] In a possible implementation of the first aspect, the cleaning tank is an integrally formed part. In this way, the processing technology of the cleaning tank can be simplified, the assembly steps of the cleaning tank can be omitted, and the connection strength between the inner shell and the outer shell, as well as the sealing of each cavity (such as the first cavity, the second cavity, the third cavity, etc.) can be improved.

[0019] In a 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; the driving device includes a first driving assembly and a second driving assembly, wherein the first driving 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 driving 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 sampling needle and the injection needle can be driven to move by the first driving assembly and the second driving assembly respectively, so that the movement of the sampling needle and the injection needle is decoupled, and sampling of a variety of different chemical reagents can be achieved, and it is beneficial to reduce the movement stroke of the sampling needle and the injection needle during the sampling process.

[0020] In a possible implementation of the first aspect, the sampling device includes a flow control pump, the flow control pump having a first pump port and a second pump port, the first pump port is connected to the outlet of the sampling needle, and the second pump port is connected to the inlet of the injection needle. In this way, the sampling accuracy can be improved, thereby improving the accuracy of the chemical digestion process, and ensuring the accuracy of subsequent chemical tests.

[0021] 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 along a first direction relative to the mounting frame; 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 along a second direction relative to the mounting frame, 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.

[0022] In this way, the first driving unit and the second driving unit can drive the sampling needle to move along a plane perpendicular to the height of the mounting frame (for example, the XY plane), so that the sampling needle can move to above the first container at different positions, and the third driving unit can drive the sampling needle to move in the up and down directions, so that the sampling needle can extend into the first container to extract the chemical reagent in the first container.

[0023] In a possible implementation of the first aspect, the first drive unit further includes a first drive rod, a first drive member and a first moving member, the first drive rod extends along a first direction; the first drive member is connected to the first drive rod, and the first drive member is used to drive the first drive rod to rotate around its own axis; the first moving member is threadedly engaged with the first drive rod, and the sampling needle is connected to the first moving member. In this way, the first drive rod and the first moving member can be formed into a lead screw nut structure, and when the first drive member drives the first drive rod to rotate, the first moving member can move along the first direction, thereby driving the sampling needle to move along the first direction. The structure is simple and easy to control.

[0024] In a possible implementation of the first aspect, the first driving unit further includes a first limiting rod, the first limiting rod is parallel to and spaced apart from the first driving rod, and the first moving member is slidably matched with the first limiting rod. In this way, the first limiting rod can guide the movement direction of the first moving member, which can prevent the first moving member from rotating relative to the first bracket on the one hand, and improve the stability of the movement of the first moving member on the other hand, so that the sampling needle can move smoothly along the first direction.

[0025] In a possible implementation of the first aspect, there are a plurality of first drive units, and the plurality of 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 matched with a first drive rod in the other first drive unit. A first moving member of the other first drive unit of the two first drive units arranged in the first direction is slidably matched with a first drive rod in the one of the first drive units.

[0026] 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 is beneficial to reducing the number of parts of the first driving assembly and simplifying the structure of the first driving assembly on the one hand; on the other hand, it is also beneficial to simplify the assembly process of the first driving assembly and improve the assembly efficiency; on another hand, it is also beneficial 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.

[0027] 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 frame, 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.

[0028] In this way, the second driving rod and the second moving member can be formed into a screw nut structure, and when the second driving member drives the second driving rod to rotate, the second moving member can move along the second direction relative to the second bracket, thereby driving the first driving unit and the sampling needle to move along the first direction. The structure is simple and easy to control.

[0029] In a possible implementation of the first aspect, the third driving unit includes a third driving member 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. The structure is simple and easy to implement.

[0030] In a possible implementation of the first aspect, the chemical digestion treatment system includes an ultrasonic water bath, which is located below the second drive assembly. In this way, the reaction temperature can be easily controlled, and the mixing efficiency and mixing degree of the chemical reagents can be improved, which is beneficial to improving the reaction accuracy and shortening the reaction time.

[0031] In a possible implementation of the first aspect, the chemical digestion treatment system includes a delivery pump, which is used to pump cleaning liquid into the cleaning tank; the control device, at least one of the sampling device, the delivery pump, and the driving device is electrically connected to the control device. In this way, the automatic control of the chemical digestion treatment system can be achieved, the complexity of manual operation and the intensity of labor can be reduced, the detection speed, accuracy and efficiency can be improved, and the whole process of chemical reagents can be truly zero-contact in the detection and analysis process, realizing a green experimental process, which greatly protects the health and safety of the staff.

[0032] 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, and the control method includes: 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.

[0033] In this way, during the experiment, the sampling device can be automatically cleaned, and then 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.

[0034] In a 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.

[0035] In a possible implementation of the second aspect, the cleaning tank includes a first cavity and a second cavity, the first cavity has a first inlet, a first open port and an overflow port, the first inlet is connected to a liquid supply device for the cleaning liquid, and the first open port faces a driving device; the second cavity is connected to the overflow port, and the second cavity has a first outlet for discharging the liquid in the second cavity; a delivery pump is provided between the first cavity and the liquid supply device, and the delivery pump is used to pump the cleaning liquid into the cleaning tank; cleaning the sampling device includes: pumping the cleaning liquid into the first cavity through the delivery pump, and keeping the delivery pump in an open state; controlling the sampling device to extract the liquid in the first cavity for cleaning. In this way, the cleaning liquid in the first cavity can maintain a flowing state, and the dirt such as chemical reagents remaining in the first cavity can be discharged in time, which can ensure the cleanliness of the cleaning liquid in the first cavity, and thus ensure the cleaning effect.

[0036] In a possible implementation of the second aspect, before controlling the sampling device to extract the liquid in the first cavity for cleaning, the method further includes: controlling the sampling device to extract the liquid in the second cavity for cleaning. In this way, the component to be cleaned can be extended into the second cavity from the second opening, and the liquid in the second cavity can be used for preliminary cleaning, so that the liquid in the second cavity can be fully utilized to achieve multiple cleanings. This can not only increase the number of cleaning times, thereby improving the cleaning effect, but also help reduce the amount of cleaning liquid used, thereby saving cleaning liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic diagram of a chemical digestion treatment system provided in some embodiments of the present application; Figure 2 for Figure 1 The schematic diagram of the assembly of the mounting frame and the driving device in the chemical digestion treatment system shown; Figure 3 for Figure 1 A schematic diagram of a sampling device in a chemical digestion treatment system is shown; Figure 4 for Figure 1A schematic diagram of the assembly of a first driving component and a first bracket in the chemical digestion treatment system shown; Figure 5 for Figure 1 A perspective view of a first drive assembly in the chemical digestion treatment system; Figure 6 for Figure 5 A cross-sectional view of the first drive assembly shown at line AA; Figure 7 for Figure 5 A cross-sectional view of the first drive assembly shown at line BB; Figure 8 for Figure 5 The schematic diagram of the assembly of the third driving unit, the sampling needle and the first moving member in the first driving assembly is shown; Fig. 9 for Figure 1 The schematic diagram of the chemical digestion treatment system shown is hidden behind the cover; Fig.10 for Fig. 9 A perspective view of a cleaning tank in the chemical digestion treatment system is shown; Fig.11 for Fig.10 The cross-sectional view of the cleaning tank shown at line CC; Figure 12-14 A setting interface diagram of a human-machine interface provided in some embodiments of the present application; Fig.15 A control flow chart of a chemical digestion treatment system provided in some embodiments of the present application.

[0038] Reference numerals: Chemical digestion treatment system 100; exhaust pipe G1; Box body 10; carrying plate 11; cover 12; supporting leg 13; 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; Sampling device 30; sampling needle 31; injection needle 32; first connecting pipe 33; flow control pump 34; pump body 341; controller 342; 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; A second drive assembly 42; 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; A first container 61; a second container 62; Ultrasonic water bath 70; Control compartment 80; transparent observation window 81; control panel 82. DETAILED DESCRIPTION

[0039] 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 of the embodiments.

[0040] In the embodiments of the present application, the terms "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0041] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0042] In the description of the embodiments of the present application, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present application generally indicates that the associated objects before and after are in an "or" relationship.

[0043] 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 the change of the orientation of the components in the drawings.

[0044] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly stipulated 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 of the two connected parts can be transmitted to the other part, and the connection method between the two parts includes but is not limited to at least one of the connection methods such as rotational connection, sliding connection, gear meshing transmission connection, sprocket transmission connection, and cam mechanism transmission connection.

[0045] In the description of the embodiments of the present application, the terms "parallel", "perpendicular", and "same orientation" 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 approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 10°; "perpendicular" includes absolute verticality and approximate verticality, wherein the acceptable deviation range of approximate verticality can also be, for example, a deviation within 10°. "Same orientation" includes absolutely the same orientation and approximately the same orientation, wherein the acceptable deviation range of approximately the same orientation can be, for example, a deviation within 10°.

[0046] For ease of understanding, before a detailed introduction to the chemical digestion treatment system and control method thereof in the embodiments of the present application, the relevant terms involved in the embodiments of the present application are first explained.

[0047] Chemical digestion: refers to the process of using chemical reagents to convert the target substance in the sample into a testable form. For example, chemical digestion can be a process of treating the sample by chemical methods to destroy the organic matter, dissolve the particulate matter, and oxidize the element to be tested into a single high-valent state or convert it into an ionic state that is easy to analyze.

[0048] Chemical reagent: a relative standard substance used for chemical research and component analysis.

[0049] At present, in the process of chemical digestion treatment, the sampling methods of organic and inorganic chemical reagents include manual sampling and automatic sampling. Among them, manual sampling is performed by staff using auxiliary equipment such as pipettes and straws. Automatic sampling is performed by sampling devices.

[0050] Manual sampling has low sampling efficiency, long cycle, and it is difficult to ensure the consistency of multiple sampling. 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.

[0051] Automatic sampling can reduce the contact time between workers and chemical reagents, reduce the impact of chemical reagents on workers' health, and automatic sampling has high sampling efficiency and short cycle, which is also conducive to ensuring the consistency of multiple sampling. Therefore, sampling devices are increasingly used in environmental laboratories.

[0052] However, the sampling device in the related art can only realize automatic sampling of a single reagent, and cannot realize sampling of a variety of different chemical reagents, and the application scenarios are limited.

[0053] 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, sampling of multiple different chemical reagents can be realized, so that chemical reagents with complex proportions can be added during the chemical digestion process.

[0054] The chemical digestion treatment system 100 in the embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0055] See also Figure 1 , Figure 1This is a schematic diagram of a chemical digestion treatment system 100 provided in some embodiments of the present application. The chemical digestion treatment system 100 includes a housing 10 , a mounting frame 20 , a sampling device 30 , a driving device 40 and a cleaning device 50 .

[0056] 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).

[0057] The box 10 is generally in the shape of a cube. For the convenience of description, an XYZ coordinate system is established for the box 10. Specifically, the height direction of the box 10 is defined as the Z-axis direction, the length direction of the box 10 is defined as the X-axis direction, and the width direction of the box 10 is defined as the Y-axis direction. It is understandable that the coordinate system setting of the chemical digestion treatment system 100 can be flexibly set according to actual needs, and no specific limitation is made here. In addition, in some other embodiments, the box 10 can also be cylindrical, elliptical, etc.

[0058] See also Figure 1 The box body 10 includes a bearing plate 11 and a cover 12. The bearing plate 11 is used to provide support for structures such as the mounting frame 20 and the cleaning device 50. The bearing plate 11 is generally plate-shaped. Exemplarily, the bearing plate 11 can be rectangular, circular, elliptical, etc.

[0059] The cover 12 is covered on the carrier plate 11, and an assembly space for accommodating the mounting frame 20, the sampling device 30, the driving device 40, and the cleaning device 50 can be enclosed between the cover 12 and the carrier plate 11. In some embodiments, at least part of the cover 12 is a transparent member. Specifically, a part of the cover 12 is a transparent member, or the entire cover 12 is a transparent member. In this way, it is convenient for the staff to observe the experimental situation in the box 10, which is conducive to timely discovering abnormalities in the experimental process to ensure the safety of the experimental process.

[0060] In order to facilitate the staff to carry out experimental operations, a portion of the cover 12 can form a door body ( Figure 1 The door body may be a sliding door, a folding door, or a swing door, etc.

[0061] In some embodiments, see Figure 1The chemical digestion treatment system 100 further includes an exhaust pipe G1, one end of which is connected to the assembly space in the box 10, and the other end of which can be connected to the exhaust gas treatment device. Alternatively, the other end of the exhaust pipe G1 can be connected to the atmosphere outside the laboratory. In this way, the exhaust gas generated during the chemical digestion process can be discharged in time through the exhaust pipe G1, and the exhaust gas can be prevented from polluting the air in the laboratory.

[0062] 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 supporting leg 13 is connected to a supporting surface (such as a desktop or the ground) of the housing 10 (not shown), and the other end of the supporting leg 13 is connected to the supporting plate 11. In this way, the supporting leg 13 can separate the supporting plate 11 from the supporting surface, so that a heat dissipation space can be formed between the supporting plate 11 and the supporting surface, which is convenient for the box 10 to exchange heat with the air, and can speed up the heat dissipation speed inside the box 10, avoid heat accumulation inside the box 10, and help improve the safety of the chemical digestion treatment process.

[0063] 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 bearing plate 11. Figure 1 In the illustrated embodiment, there are four supporting legs 13. In other embodiments, there may be two, three, five or more supporting legs 13.

[0064] Of course, it can be understood that, in some other embodiments, the box 10 may not include the support legs 13, in which case the box 10 may be supported on the workbench by means of the support plate 11. For example, in some other embodiments, the cover 12 may be covered on the workbench, and an assembly space is formed between the cover 12 and the workbench, in which case the workbench may be used as the support plate 11. For example, in some other embodiments, the chemical digestion treatment system 100 may not include the box 10, in which case the mounting frame 20, the sampling device 30 and other structures may be arranged in a fume hood in the laboratory, or may be directly arranged on the workbench.

[0065] See also Figure 2 , Figure 2 for Figure 1 The schematic diagram of the assembly of the mounting frame 20 and the drive device 40 and other structures in the chemical digestion treatment system 100 is shown. The mounting frame 20 is used to provide a mounting base for the drive device 40 and other structures. The mounting frame 20 can be supported on the bearing plate 11.

[0066] 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. Exemplarily, the first frame 211 may be formed as a rectangular frame. Of course, the shape of the first frame 211 is not limited thereto.

[0067] 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 that are sequentially arranged in a circumferential direction of the carrier plate 11. The first support rod 2111 and the second support rod 2112 can be arranged in a first direction e1, and the third support rod 2113 and the fourth support rod 2114 can be arranged in a first direction e1. The second support rod 2112 and the third support rod 2113 can be arranged in a second direction e2, and the first support rod 2111 and the fourth support rod 2114 can be arranged in a second direction e2.

[0068] Among them, the first direction e1 intersects with the second direction e2, and the first direction e1 and the second direction e2 are both 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. Exemplarily, 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 also intersect with the X-axis direction.

[0069] See also Figure 2 The first frame 211 also 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 long strips. 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, and 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.

[0070] For example, see Figure 2, the 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. Among them, 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.

[0071] 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 as a whole through the first connecting member 2115 and the second connecting member 2116, which is convenient for 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 play the role of reinforcing ribs, which can improve the structural strength of the first frame 211, and thus ensure the support stability of the first bracket 21.

[0072] 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 the first connector 2115 and the second connector 2116. The first carrier 212 and the first connector 2115 can be connected by fasteners, welding, clamping, etc. 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.

[0073] 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.

[0074] The first carrier 212 is used to carry the first container 61. The first container 61 is used to contain chemical reagents. The chemical reagents may 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. Exemplarily, 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 may be selected according to the storage requirements of the chemical reagents.

[0075] In some embodiments, the first carrier 212 is plate-shaped. In order to limit the position of the first container 61, a limit slot C1 is provided on the first carrier 212, and a portion of the first container 61 can be snap-fitted into the limit slot C1. The number of limit slots C1 can be multiple. In this way, the position of the first container 61 can be made more stable, which is conducive to preventing the first container 61 from tipping over during the experiment, thereby preventing the chemical reagent from spilling out of the first container 61, and improving the safety of the chemical digestion process.

[0076] 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. Exemplarily, the first frame 211 may have a plurality of locking positions for fixing the first carrier 212, and the plurality of locking positions are arranged in the height direction of the first frame 211 (for example, Figure 2 In this way, the application scope of the chemical digestion treatment system 100 can be expanded, so that the first containers 61 of different heights can meet the experimental requirements of the chemical digestion process, and are conducive to improving the sampling efficiency.

[0077] For example, during the experiment preparation, the first carrier 212 can be fixed to a suitable locking position according to actual needs to adjust the height of the first carrier 212 to meet the experimental requirements. After the experiment begins, the first carrier 212 and the first frame 211 can be relatively fixed to prevent the first container 61 from tipping over during the experiment.

[0078] It is understandable that in other embodiments, the first carrier 212 and the first frame 211 may also be relatively fixed all the time. That is, the height of the first carrier 212 is not adjustable. The first carrier 212 is a fixed carrier. In this way, the position stability of the first container 61 can also be ensured to prevent the first container 61 from tipping over.

[0079] In some embodiments, see Figure 1, the first carrier 212 is spaced apart from the carrier plate 11. It is understandable 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 also not include the first carrier 212, in which case the first container 61 may be placed on the carrier plate 11.

[0080] 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 may be the same as that of the first frame 211. In this way, the structure of the mounting frame 20 may be simplified, which is beneficial to improving the production efficiency of the mounting frame 20.

[0081] The second carrier 222 is used to place the second container 62. The second carrier 222 can be set 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, a conical flask, a distillation flask, a titration bottle, etc.

[0082] 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 treatment system 100 also includes an ultrasonic water bath 70. The ultrasonic water bath 70 is a device that uses the principle of ultrasonic vibration to perform experimental 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.

[0083] The ultrasonic generator can generate high-frequency electrical energy, which can be converted into ultrasonic vibrations by a transducer. In this way, the reagents in the second container 62 can be mixed evenly, which is conducive to improving the rate and uniformity of the chemical reaction. The temperature controller can adjust the temperature of the water in the water bath and maintain the water temperature constant. In this way, it is convenient to control the reaction temperature.

[0084] When the ultrasonic water bath 70 is working, the high-frequency current generated by the ultrasonic generator is converted into ultrasonic vibrations through the transducer. These vibrations are transmitted through the water medium to generate a large number of tiny bubbles (called "cavitation bubbles"). These bubbles grow rapidly and collapse violently under the action of vibration, generating local high pressure and temperature up to several thousand atmospheres, and microjets up to several hundred kilometers per hour, which can effectively mix the solution.

[0085] In some embodiments, the height of the second carrier 222 in the Z-axis direction is adjustable. In this way, on the one hand, it is convenient to adjust the height of the second container 62 immersed in the water bath to ensure the smooth progress of the reaction; on the other hand, it is also convenient to take and put the second container 62, which is conducive to improving the experimental efficiency.

[0086] See also Figure 2 In some embodiments, the first support 21 is spaced apart from the second support 22. This is conducive to increasing 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.

[0087] It is understandable 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.

[0088] The sampling device 30 can be used to transfer the chemical reagent in the first container 61 to the second container 62 to achieve the addition and proportioning of the chemical reagent. The number of the sampling devices 30 can be multiple. For example, the number of the sampling devices 30 can be two, three, four, five or more. In this way, it is beneficial to improve the sampling efficiency and shorten the sampling cycle.

[0089] In some embodiments, see Figure 3 , Figure 3 for Figure 1 Schematic diagram of the sampling device 30 in the chemical digestion treatment system 100 shown. The sampling device 30 includes a sampling needle 31, a sampling 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 sampling needle 32. The sampling needle 31 can be used to extract the chemical reagent in the first container 61, and the sampling needle 32 can be used to add the chemical reagent to the second container 62. Specifically, the chemical reagent extracted by the sampling needle 31 can be transported to the sampling needle 32 through the first connecting tube 33, and added to the second container 62 through the sampling needle 32.

[0090] The first connecting tube 33 may be a flexible tube or the first connecting tube 33 may be elastically deformable. For example, the material of the first connecting tube 33 may include rubber, plastic, silicone, etc. These materials have strong corrosion resistance and good bending performance, which is conducive to improving the service life of the sampling device 30.

[0091] 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.

[0092] In some embodiments, at least part of the first connecting tube 33 is extended in a winding manner. Specifically, the length of the first connecting tube 33 after stretching is greater than the distance between the inlet of the sampling needle 31 and the outlet of the injection needle 32. In this way, the first connecting tube 33 can be redundantly arranged between the sampling needle 31 and the injection needle 32, so that the first connecting tube 33 can be deformed with the movement of the sampling needle 31 and the injection needle 32, and the tensile stress on the first connecting tube 33 can be reduced, thereby preventing the first connecting tube 33 from breaking and leaking.

[0093] To improve the accuracy of chemical addition, refer to Figure 3 The sampling device 30 further includes a flow control pump 34. The flow control pump 34 can provide suction power for the sampling needle 31 to extract the chemical reagent in the first container 61, and can control the flow rate and flow rate of the extracted chemical reagent, thereby controlling the amount of chemical reagent added. Exemplarily, the flow control pump 34 can be a peristaltic pump. The peristaltic pump has high flow regulation accuracy, small size, and light weight, can improve sampling accuracy, and is easy to install.

[0094] Of course, the type of the flow control pump 34 is not limited thereto. 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 flow control can be achieved and quantitative sampling of chemical reagents can be realized.

[0095] See also Figure 3 The flow control pump 34 includes a pump body 341 and a controller 342, and 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, so as to control the flow rate and flow velocity. Exemplarily, the controller 342 can be a programmable logic controller (PLC).

[0096] 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 on the pump body 341.

[0097] 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 waterproof, dustproof, and anti-collision protection for the flow control pump 34, which can effectively protect the flow control pump 34 and help extend 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.

[0098] 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.

[0099] 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.

[0100] In some embodiments, see Figure 2 The driving device 40 includes a first driving component 41 and a second driving component 42. The first driving component 41 can be disposed 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 driving component 42 can be disposed 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.

[0101] 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 The 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.

[0102] The first driving unit 411 is connected to the sampling needle 31, and is used to drive the sampling needle 31 to move along the first direction e1 relative to the first bracket 21. The second driving unit 412 is connected to the first driving unit 411, and is used to drive the first driving unit 411 to move along the second direction e2 relative to the first bracket 21, so as to drive the sampling needle 31 to move along the second direction e2. The third driving unit 413 is connected to the first driving unit 411 and the sampling needle 31, and is used to drive the sampling needle 31 to move along the height direction of the first bracket 21, and the third driving unit 413 can move together with the first driving unit 411.

[0103] 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.

[0104] In some embodiments, see Figure 5 The first driving unit 411 includes a first driving rod 4111, a first driving member 4112 and a first moving member 4113. The first driving rod 4111 extends along a first direction e1. The first driving member 4112 is connected to the first driving rod 4111 and is used to drive the first driving rod 4111 to rotate around the axis of the first driving rod 4111. The axis of the first driving rod 4111 extends along the first direction e1.

[0105] Exemplarily, the first driving member 4112 has a first output shaft 4112a, and the first driving rod 4111 is connected to the first output shaft 4112a. When the first driving member 4112 is working, the first output shaft 4112a can rotate relative to the first bracket 21, thereby driving the first driving rod 4111 to rotate. The first driving member 4112 can be a motor. For example, the first driving member 4112 can be a stepping motor, a servo motor, etc. In this way, the precise positioning of the sampling needle 31 can be achieved.

[0106] 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.

[0107] The first moving member 4113 is threadedly matched 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 5The cross-sectional view of the first driving assembly 41 at the AA line is shown. The first moving member 4113 has a first threaded hole K1, and the first threaded hole K1 is threadedly connected to the first driving rod 4111. In this way, the first driving rod 4111 and the first moving member 4113 can be formed into a screw nut structure. When the first driving member 4112 drives the first driving rod 4111 to rotate, the first moving member 4113 can move along the first direction e1, thereby driving the sampling needle 31 to move along the first direction e1. The structure is simple and easy to control.

[0108] 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. Exemplarily, 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.

[0109] The first moving member 4113 is slidably matched with the first limiting rod 4114. For example, see Figure 6 The first moving member 4113 is provided with a first limiting hole K2, and the first limiting hole K2 is penetrated by the first limiting rod 4114. In this way, the movement direction of the first moving member 4113 can be guided by the cooperation between the first limiting hole K2 and the first limiting rod 4114, which can prevent the first moving member 4113 from rotating relative to the first bracket 21 on the one hand, and improve the stability of the movement of the first moving member 4113 on the other hand, so that the sampling needle 31 can move smoothly along the first direction e1.

[0110] It can be understood that in other embodiments, the first driving 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 driving unit 411 can drive the sampling needle 31 to move relative to the first bracket 21 along the first direction e1.

[0111] See also Figure 5 Combined with Figure 7 , Figure 7 for Figure 5 The cross-sectional view of the first driving assembly 41 shown in FIG. 4 is taken at line BB. The second driving unit 412 comprises a second driving rod 4121, a second driving member 4122 and a second moving member 4123. The second driving rod 4121 extends along the second direction e2. The second driving member 4122 is connected to the second driving rod 4121 and is used to drive the second driving rod 4121 to rotate around the axis of the second driving rod 4121. The axis of the second driving rod 4121 extends along the second direction e2.

[0112] 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 working, 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.

[0113] 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.

[0114] The second moving member 4123 is threadedly matched with the second driving rod 4121, and the first driving unit 411 is connected to the second moving member 4123. Exemplarily, the first driving member 4112 and the first limiting rod 4114 are both connected to the first moving member 4113. The second moving member 4123 and the first moving member 4113 can be arranged in the first direction e1. In this way, the second driving rod 4121 and the second moving member 4123 can be formed into a screw nut structure, and when the second driving member 4122 drives the second driving rod 4121 to rotate, the second moving member 4123 can move along the second direction e2 relative to the second bracket 22, and then drive the first driving unit 411 and the sampling needle 31 to move along the first direction e1 together. The structure is simple and easy to control.

[0115] 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. Exemplarily, the second limiting rod 4124 and the second driving rod 4121 may 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 may also be arranged in the first direction e1.

[0116] The second moving member 4123 is slidably matched with the second limiting rod 4124. The connection mode of the second moving member 4123 and the second limiting rod 4124 can be designed with reference to the connection mode of the first moving member 4113 and the first limiting rod 4114, and will not be described in detail here. In this way, the movement direction of the second moving member 4123 can be guided by the second limiting rod 4124, which can prevent the second moving member 4123 from rotating relative to the first bracket 21 on the one hand, and improve the stability of the movement of the second moving member 4123 on the other hand, so that the sampling needle 31 can move smoothly along the second direction e2.

[0117] In some embodiments, see Figure 4-Figure 5 , there are multiple first drive units 411, and the multiple first drive units 411 correspond to the multiple sampling needles 31 one by one. 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 at the same time, which is conducive to improving the sampling efficiency and meeting the sampling requirements of different chemical reagents.

[0118] 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 is slidably matched with the first driving rod 4111 of the other first drive unit 411. The first moving member 4113 of the other first drive unit 411 of the two first drive units 411 is slidably matched with the first driving rod 4111 of the one of the first drive units 411.

[0119] 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.

[0120] 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 one hand; on the other hand, it is also beneficial to simplify the assembly process of the first drive component 41 and improve the assembly efficiency; on the other hand, it is also beneficial to reduce the space occupied by the first drive rod 4111 and the first limit rod 4114, thereby reducing the overall space occupied by the first drive component 41.

[0121] See also Figure 4 Combined with Figure 5, there are multiple second drive units 412. The multiple second drive units 412 correspond to the multiple first drive units 411 one by one. Specifically, the number of the second drive units 412 can be the same as the number of the 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. Exemplarily, 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.

[0122] In this way, each second driving unit 412 can drive the corresponding first driving unit 411 to move along the second direction e2, and the movements of different first driving 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.

[0123] 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, and the second moving member 4123 of one of the two second drive units 412 is slidably matched 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 of the two second drive units 412 is slidably matched with the second drive rod 4121 of the one of the second drive units 412.

[0124] 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.

[0125] 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.

[0126] See also Figure 8 , Figure 8 for Figure 5The third driving unit 413, the sampling needle 31 and the first movable member 4113 in the first driving assembly 41 are shown as an assembly diagram. The third driving unit 413 includes a third driving member 4131 and a fixing member 4132. The third driving member 4131 is fixed to the first movable member 4113. The third driving member 4131 can be a motor. Exemplarily, the third driving member 4131 is a stepping motor, a cylinder, etc. The third driving member 4131 has a telescopic shaft 4131a that can be telescopic along the height direction of the first bracket 21.

[0127] 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 may be in the form of a sheet or a plate, so that the difficulty of assembling the sampling needle 31 and the third driving unit 413 can be reduced.

[0128] 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.

[0129] In some embodiments, a first through hole K3 is provided on the fixing member 4132 , a second through hole K4 is provided on the first movable member 4113 , and 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 .

[0130] It is understandable that in other embodiments, the sampling needle 31 may be provided in the first through hole K3 but not in the second through hole K4, and the first connecting tube 33 may be provided in the second through hole K4, or the first connecting tube 33 may be provided in the first through hole K3 and the second through hole K4, and the sampling needle 31 may not be provided in the first through hole K3. 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.

[0131] In some embodiments, the third driving member 4131 is disposed inside the first moving member 4113, and the fixing member 4132 is disposed outside the first moving member 4113. In other embodiments, both the third driving member 4131 and the fixing member 4132 may be disposed outside the first moving member 4113.

[0132] On the basis of any of the above embodiments, in order to adapt to the first container 61 of different heights, the height of the first drive assembly 41 in the Z-axis direction is adjustable. Exemplarily, the fixing position of the second drive member 4122 and the first bracket 21 is adjustable. The first bracket 21 is provided with a plurality of fixing positions of different heights. During the experiment, the second drive member 4122 can be fixed to a suitable fixing position according to actual needs, so that the first drive assembly 41 can be fixed to a suitable height, which is conducive to reducing the movement stroke of the sampling needle 31 in the Z-axis direction, thereby facilitating the improvement of sampling efficiency.

[0133] In this embodiment, a three-dimensional track design can be formed between the first driving rod 4111, the second driving rod 4121 and the third driving unit 413 in the first driving assembly 41. In this way, based on the positioning of the coordinate axis large model, the stepping motor can be used for precise positioning to ensure the movement range and movement accuracy of the sampling needle 31, thereby achieving accurate sampling of chemical reagents in the first container 61 at different positions, and the structure is simple and the design is ingenious.

[0134] 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.

[0135] 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, before replacing the chemical reagents to be sampled, or after the experiment is completed, the sampling device 30 can be cleaned by the cleaning device 50 to prevent the chemical reagents remaining in the sampling needle 31 from contaminating other chemical reagents, thereby ensuring the purity of the reagents in the first container 61 (e.g., a reagent bottle).

[0136] See also Fig. 9 , Fig. 9 for Figure 1 The chemical digestion treatment system 100 shown is a schematic diagram of the cover 12. The cleaning device 50 includes a cleaning tank 51 and a first waste liquid tank 52. The cleaning tank 51 and the first waste liquid tank 52 are both located below the driving device 40. The cleaning tank 51 is used to contain a cleaning liquid, and the cleaning liquid is used to clean the sampling device 30. The cleaning liquid includes but is not limited to deionized water, ultrapure water and other liquids that meet the cleaning requirements. The first waste liquid tank 52 is used to contain waste liquid.

[0137] Exemplarily, the first waste liquid tank 52 may be used to contain waste liquid discharged by the sampling device 30. After the sampling device 30 extracts the cleaning liquid, the cleaning liquid may be discharged into the first waste liquid tank 52 to flush the sampling device 30.

[0138] 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.

[0139] In some embodiments, the cleaning device 50 further includes a second waste liquid tank 53, which can be used to contain waste liquid. Exemplarily, the second waste liquid tank 53 can be used to collect waste liquid in the first waste liquid tank 52 and the cleaning liquid (that is, 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 avoid waste liquid pollution to the environment.

[0140] 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.

[0141] In some embodiments, the cleaning liquid can be extracted through the sampling needle 31, and after the cleaning liquid flows to the sampling needle 32 through the first connecting pipe 33, it can be discharged to the first waste liquid tank 52 through the sampling needle 32. In this case, the cleaning tank 51 can be arranged below the first driving assembly 41, and the first waste liquid tank 52 can be arranged below the second driving assembly 42.

[0142] It is understandable that in other embodiments, the cleaning liquid may be extracted through the injection needle 32, and after the cleaning liquid flows to the sampling needle 31 through the first connecting pipe 33, it may be discharged to the first waste liquid tank 52 through the sampling needle 31. In this case, the cleaning tank 51 may be disposed below the second drive assembly 42, and the first waste liquid tank 52 may be disposed below the first drive assembly 41.

[0143] In some other embodiments, when the sampling device 30 includes only the sampling needle 31 but not the injection needle 32, after the sampling needle 31 extracts the cleaning liquid, it is discharged to the first waste liquid tank 52 by the sampling needle 31. In this case, the driving device 40 may include only the first driving component 41, and the second driving component 42 is not required, so the cleaning tank 51 and the first waste liquid tank 52 are both arranged below the first driving component 41 (that is, the driving device 40).

[0144] 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 explanation, but this should not be understood as a limitation to the present application.

[0145] See also Fig. 9 The cleaning device 50 further includes a liquid supply device 54 , and the cleaning tank 51 is connected to the liquid supply device 54 so that the cleaning liquid is transported into the cleaning tank 51 through the liquid supply device 54 .

[0146] In some embodiments, the liquid supply device 54 may include a cleaning liquid manufacturing device 541 and a cleaning liquid storage tank 542. The cleaning liquid manufacturing device 541 is used to produce cleaning liquid. The cleaning liquid storage tank 542 is used to store cleaning liquid. The cleaning liquid processed by the cleaning liquid manufacturing device 541 can be transported to the cleaning liquid storage tank 542 for transfer or temporary storage.

[0147] Illustratively, the cleaning liquid manufacturing device 541 may be located outside the housing 10 , and the cleaning liquid storage tank 542 may be disposed on the carrying plate 11 .

[0148] It is understandable that in other embodiments, the liquid supply device 54 may not include one of the cleaning liquid manufacturing equipment 541 and the cleaning liquid storage tank 542 .

[0149] See also Fig.10 Combined with Fig.11 , Fig.10 for Fig. 9 A perspective view of the cleaning tank 51 in the chemical digestion treatment system 100 is shown. Fig.11 for Fig.10 The cross-sectional view of the cleaning tank 51 shown in FIG. Fig.10 Components that are not visible in the cleaning tank 51 are indicated by dashed lines.

[0150] 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 liquid supply device 54 of the cleaning liquid, the first open port Q12 can face the drive device 40 (for example, the first drive assembly 41), and the overflow port Q13 is connected to the second cavity Q2.

[0151] The component to be cleaned (such as the sampling needle 31) can be extended from the first opening Q12 into the first cavity Q1 to extract cleaning liquid to flush 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 height.

[0152] For further information, see Fig. 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.

[0153] Among them, the cleaning liquid manufacturing 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 through the 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.

[0154] During the cleaning process, the delivery pump 543 is always in the open state, and the cleaning liquid can be continuously injected into the first cavity Q1 from the first inlet Q11, so that the first cavity Q1 can be continuously replenished with liquid, and 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. In this way, the cleaning liquid in the first cavity Q1 can maintain a flowing state, and the dirt such as the chemical reagent remaining in the first cavity Q1 can be discharged in time, which can ensure the cleanliness of the cleaning liquid in the first cavity Q1, and thus ensure the cleaning effect.

[0155] In some embodiments, see Fig.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 Fig.11 The cleaning liquid flows toward the first cavity Q1 in the direction indicated by the arrow in the figure, 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 brought to a higher position as the water flow rises, so that the dirt is discharged together with the cleaning liquid, which can effectively avoid the dirt from being deposited in the first cavity Q1, thereby facilitating the improvement of the cleanliness of the cleaning liquid in the first cavity Q1.

[0156] Please continue reading Fig.11, the second cavity Q2 has a first outlet Q21, and the first outlet Q21 is used to discharge the liquid in the second cavity 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 through a delivery pipe 55. In this way, the liquid in the second cavity 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 cavity Q2 can be first 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.

[0157] In some embodiments, see Fig.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 part to be cleaned (such as the sampling needle 31) can be extended into the second cavity Q2 from the second open port Q22, and the liquid in the second cavity Q2 can be used for preliminary cleaning, which can make full use of the liquid in the second cavity Q2 to achieve multiple cleanings. For example, before the sampling device 30 is cleaned by the liquid in the first cavity Q1, the sampling device 30 can be cleaned by the liquid in the second cavity Q2 first, which can increase the number of cleaning times, which is not only conducive to improving the cleaning effect, but also conducive to reducing the amount of cleaning liquid and saving cleaning liquid.

[0158] In some embodiments, see Fig.10 Combined with Fig.11 , the top of the first cavity Q1 is completely opened to form the first open port Q12. In this case, the first open port Q12 can be reused as the overflow port Q13. In this way, on the one hand, it is helpful to simplify the structure of the cleaning tank 51, and it is helpful to increase the speed of the liquid in the first cavity Q1 overflowing to the second cavity Q2, which is helpful to shorten the replacement cycle of the cleaning liquid in the first cavity Q1, and thus can improve the purity of the cleaning liquid in the first cavity Q1; on the other hand, it is also helpful to increase the opening area of ​​the first open port Q12, which is helpful to reduce the position accuracy of the sampling needle 31 waiting for cleaning parts in the XY plane, and thus it is helpful to shorten the cleaning time and improve the cleaning efficiency.

[0159] 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.

[0160] 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. Exemplarily, the multiple first cavities Q1 can be arranged at intervals in the circumferential direction 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.

[0161] In some embodiments, when there are two first cavities Q1, the first cleaning can be performed by the liquid in the second cavity Q2, the second cleaning can be performed by the liquid in one of the first cavities Q1, and the third cleaning can be performed by the liquid in the other first cavity Q1. In this way, three-stage multi-stage cleaning of the sampling needle 31 can be achieved, the number of cleaning times can be increased, and the replenishment time of the cleaning liquid in the other first cavity Q1 can be extended, which is conducive to improving the purity of the cleaning liquid used for the third cleaning, thereby ensuring the cleaning effect, so that the chemical digestion treatment system 100 can meet the requirements of simultaneous serial extraction of different chemical reagents, realize the addition of multiple chemical reagents, and avoid cross contamination between different chemical reagents.

[0162] Of course, the number of the first cavities Q1 can also be three, four, five or more.

[0163] In order to form a multi-chamber structure in the cleaning tank 51, please refer to Fig.10 and Fig.11 The cleaning tank 51 includes an outer shell 511 and an inner shell 512. The inner shell 512 is disposed in the outer shell 511 and divides the space in 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.

[0164] In some embodiments, the outer shell 511 includes a first side panel 5111 and a first bottom plate 5112 , the first side panel 5111 is cylindrical, the first bottom plate 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 plate 5112 .

[0165] The inner shell 512 is disposed in the outer shell 511. Exemplarily, the inner shell 512 is cylindrical, and the inner shell 512 is fixed to the first bottom plate 5112. Exemplarily, the inner shell 512 is sealed and connected to the first bottom plate 5112. The first bottom plate 5112 has a first surface, and the inner shell 512 is disposed on the first surface. The dimension of the first side panel 5111 protruding from the first surface is smaller than the dimension of the first side panel 5111 protruding from the first surface.

[0166] 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 for the cleaning tank 51 , and reduce the cost of the cleaning tank 51 .

[0167] In this embodiment, the entire inner shell 512 is spaced apart from the first side panel 5111. In this way, the second cavity Q2 can surround the outer periphery of the first cavity Q1, which can make the setting position of the overflow port Q13 more flexible, and the overflow port Q13 can be designed as a closed ring, which is conducive to increasing the area of ​​the overflow port Q13, thereby facilitating the overflow speed of the liquid in the first cavity Q1 to the second cavity Q2, and shortening the replacement cycle of the cleaning liquid in the first cavity Q1.

[0168] It is understandable 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.

[0169] In some embodiments, the material of the outer shell 511 includes at least one of metal, plastic, glass, and ceramic. Similarly, the material of the inner shell 512 may also include 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.

[0170] In some embodiments, the inner shell 512 and the outer shell 511 are formed as an integral structure. That is, the inner shell 512 and the outer shell 511 are integrally formed. Exemplarily, the inner shell 512 and the outer shell 511 can be processed by at least one of injection molding, forging, casting, and CNC milling. In this way, the processing technology of the cleaning tank 51 can be simplified, the assembly steps of the cleaning tank 51 can be omitted, and the connection strength between the inner shell 512 and the outer shell 511 and the sealing of the first cavity Q1 can be improved.

[0171] In other embodiments, the inner shell 512 and the outer shell 511 may also be split structures, that is, after the inner shell 512 and the outer shell 511 are processed and formed separately, the inner shell 512 is fixed to the outer shell 511 by bonding, clamping, screw connection, etc.

[0172] 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, and 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 Fig.11 The third cavity Q3 is connected to the first outlet Q21, and the third cavity Q3 has a second outlet Q31.

[0173] 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 .

[0174] 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.

[0175] 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.

[0176] Based on any of the above embodiments, the cleaning tank 51 can be an integrally formed part. In this way, the processing technology of the cleaning tank 51 can be further simplified, the assembly steps of the cleaning tank 51 can be omitted, and the sealing performance of each cavity (such as the first cavity Q1, the second cavity Q2, the third cavity Q3, etc.) in the cleaning tank 51 can be improved.

[0177] In some embodiments, in order to increase the support area of ​​the cleaning tank 51 and improve the 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 further includes a connecting plate 514, which is 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 also include a plurality of sub-plates spaced apart in the circumferential direction of the second bottom plate 5132.

[0178] In this way, the cleaning tank 51 can be supported on the supporting plate 11, the first loading rack 212, the second loading rack 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.

[0179] In some embodiments, see Fig.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 also be provided on the inner wall surface of the second cavity Q2 by coating, bonding, etc.

[0180] 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.

[0181] In order to realize the automatic control of the chemical digestion treatment system 100, the chemical digestion treatment system 100 includes a control device, which can be used to send and receive instructions so that the chemical digestion treatment system 100 executes the control command according to the preset logic. Specifically, the control device can be electrically connected to at least one of the sampling device 30, the driving device 40, and the ultrasonic water bath 70 to realize the sampling, reaction, cleaning and other operations in the chemical digestion process.

[0182] In some embodiments, the chemical digestion treatment system 100 also includes a human machine interface (HMI), which communicates with the control device. The human machine interface allows the staff to input control instructions, such as starting / stopping the equipment, adjusting parameter settings, etc. After the control device receives the control instructions from the human machine interface, it can control the specific process of the experiment according to these instructions. In this way, the staff does not need to wait for the operation on site, which can greatly shorten the contact time between the staff and the chemical reagents, making the experimental process safer and conducive to ensuring the health of the staff.

[0183] See also Figure 12-14 , Figure 12-14 This is a setting interface for the human-machine interface provided in some embodiments of the present application. Fig.12 As shown, Fig.12 It is the setting interface of the ultrasonic water bath pot 70. The staff can set the ultrasonic frequency, ultrasonic duration, and the set temperature of the water bath through the setting interface of the ultrasonic water bath pot 70, and can monitor the actual temperature in the water tank through the setting interface.

[0184] 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.

[0185] like Fig.13 As shown, Fig.13 This is the setting interface for sampling and injection. The staff can set the reagent addition instructions in the second container 62 and the parameters of the chemical reagent in the first container 61 through the setting interface for sampling and injection. For example, the name of the chemical reagent and the amount of the chemical reagent in the first container 61 (such as volume, mass, etc.) can be set. Among them, there are multiple first containers 61 and second containers 62, and the parameter configuration of the chemical reagent in each first container 61 and the addition instructions of the chemical reagent in each second container 62 can be set independently. This can support the addition of multiple test samples, greatly improve the test efficiency, reduce human operating errors, and help improve the consistency of the test.

[0186] like Fig.14 As shown, Fig.14 It is the setting interface of the cleaning device 50. The staff can set the parameter configuration of the sampling needle 31 (such as the range of the sampling needle 31), the speed of the flow control pump 34, the speed of the delivery pump 543 and other parameters through the setting interface of the cleaning device 50 to ensure that the sampling device 30 can accurately sample according to the test standard requirements.

[0187] The control method of the chemical digestion treatment system 100 is introduced below.

[0188] See also Fig.15 , Fig.15 The control flow chart of the chemical digestion treatment system 100 provided in some embodiments of the present application. In some embodiments, the control method of the chemical digestion treatment system 100 includes: Step S100: controlling the sampling device 30 to add a first reagent into a target container (eg, the second container 62); Exemplarily, step S100 may include: Step S101: Control the sampling needle 31 to move to the top of the corresponding first container 61 through the first driving assembly 41, and control the sampling needle 31 to extend into the first container 61; Step S102: Control the injection needle 32 to move to the top of the corresponding target container through the second drive assembly 42, and control the injection needle 32 to approach the opening of the target container, or control the injection needle 32 to extend into the target container; Step S103 : start 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 .

[0189] There is no particular order in which step S101 and step S102 are performed.

[0190] Step S200: cleaning the sampling device 30; specifically, cleaning the sampling device 30 that has extracted the first reagent; Exemplarily, step S200 may include: Step S201: Pump cleaning liquid into the first cavity Q1 of the cleaning tank 51, and keep the delivery pump 543 turned on; Step S202: Control the sampling device 30 to extract the liquid in 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, and then the sampling needle 31 can be controlled to extract the liquid in the first cavity Q1, and the liquid flows into the injection needle 32 through the first connecting tube 33, and then the injection needle 32 releases the liquid into the first waste liquid tank 52.

[0191] 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.

[0192] In the embodiment where the second cavity Q2 includes the second open port 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.

[0193] There is no particular order between step S201 and step S100.

[0194] Step S300: adding a second reagent into the target container through the cleaned sampling device 30 .

[0195] It can be understood that the sampling device 30 cleaned in step S300 can be the sampling device 30 cleaned in step S200, or can be the sampling device 30 that was cleaned after the last experiment and has not extracted reagents during this experiment.

[0196] Step S400: After the sampling is completed, the sampling device 30 that has taken the reagent is cleaned.

[0197] In this way, during the experiment, the sampling device 30 can be automatically cleaned, so that sampling of a variety of 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.

[0198] It is understandable 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.

[0199] The following introduces the operation method of the chemical digestion treatment system 100 by taking the liquid phase method to test the formaldehyde in the sample to be tested as an example. Among them, 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, cosmetics, children's toys, household items, etc. that need to be tested in electronic and electrical products. 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. Among them, 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 strap as an example for explanation.

[0200] (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; Exemplarily, the sample to be tested may be a leather watch strap, and the colors of different samples to be tested may be different or the same. The number of samples to be tested may be six. The six samples to be tested may be placed in test tube No. 1, test tube No. 2, test tube No. 3, test tube No. 4, test tube No. 5, and test tube No. 6, respectively. The length of the sample to be tested is 3 mm-5 mm, and the weight of the sample to be tested in each test tube may be 1 g-2 g.

[0201] When preparing the samples to be tested, 20g of leather from the front and back of each 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.

[0202] (2) The three chemical reagents required for chemical digestion are placed in the No. 1 fixed slot, the No. 2 fixed slot, and the No. 3 fixed slot of the first sample rack 212. For example, the three chemical reagents may be sodium dodecyl sulfate, acetonitrile, and N,N-dimethyl-p-phenylenediamine hydrochloride (NNDPH).

[0203] (3) Open the human-machine interface and perform the following operations: (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; (32) In the setting interface of the sampling device 30, set the chemical reagent parameters in the No. 1 fixed tank, the No. 2 fixed tank and the No. 3 fixed tank respectively. There is no requirement for the setting order; (33) In the setting interface of the sampling device 30, set the reagent adding instructions for test tubes No. 1 to No. 6. For example, the adding instruction for test tube No. 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 adding instructions for test tubes No. 1 to No. 6; (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.

[0204] After the above settings are completed, the chemical digestion treatment system 100 can be started and operated, and different samples and different proportions of treatment operations can be performed at the same time to complete the batch test reagent configuration.

[0205] 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, and improve the detection speed, accuracy and efficiency. During the detection and analysis process, zero contact with chemical reagents in the entire process can be truly achieved, a green experimental process is realized, and the health and safety of the staff is greatly protected.

[0206] 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.

[0207] 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 it. 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. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate 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 frame; Sampling device; A driving device, disposed on the mounting frame, connected to the sampling device, and used for driving the sampling device to move relative to the mounting frame; A cleaning tank, located below the driving device, the cleaning tank is used to contain 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 contain waste liquid.

2. The chemical digestion treatment system according to claim 1, characterized in that: The cleaning tank comprises: A first cavity having a first inlet, a first open port and an overflow port, wherein the first inlet is communicated with a liquid supply device of the cleaning liquid, and the first open port faces the driving device; The second cavity is communicated with the overflow port, and the second cavity has a first outlet for discharging liquid in the second cavity.

3. The chemical digestion treatment system according to claim 2, characterized in that: The second cavity comprises a second open port, and the second open port faces the driving device.

4. The chemical digestion treatment system according to claim 2, characterized in that: The number of the first cavities is multiple.

5. The chemical digestion treatment system according to claim 2, characterized in that: The second cavity surrounds the outer circumference of the first cavity.

6. The chemical digestion treatment system according to any one of claims 2 to 5, characterized in that: An anti-corrosion layer is disposed on at least part of the inner wall surface of the second cavity; and / or an anti-corrosion layer is disposed on at least part of the inner wall surface of the first cavity.

7. The chemical digestion treatment system according to any one of claims 2 to 5, characterized in that: The cleaning tank comprises: The housing comprises a first side panel and a first bottom panel, wherein 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 plate. At least a portion of the inner shell is separated from the first side panel. The first cavity is located in the inner shell. The first side panel, the first bottom plate and the inner shell form the second cavity.

8. The chemical digestion treatment system according to claim 7, 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 raised portion is hollow inside to form a third cavity. The third cavity is connected to the first outlet and has a second outlet.

9. The chemical digestion treatment system according to claim 8, 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 the outer periphery of the first outlet, and the second side panel connected between the first bottom plate and the second bottom plate; The cleaning tank further includes a connecting plate connected between the first side panel and the second bottom panel.

10. The chemical digestion treatment system according to any one of claims 1-5, 8-9, characterized in that: The cleaning tank is an integrally formed part.

11. The chemical digestion treatment system according to any one of claims 1-5, 8-9, characterized in that: 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; The driving device includes a first driving component and a second driving component. The first driving component is connected to the sampling needle and is used to drive the sampling needle to move relative to the mounting frame. The second driving component is connected to the injection needle and is used to drive the injection needle to move relative to the mounting frame.

12. The chemical digestion treatment system according to claim 11, characterized in that: It comprises a flow control pump, which has 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.

13. The chemical digestion treatment system according to claim 11, characterized in that: The first driving assembly comprises: A first driving unit, connected to the sampling needle, and used to drive the sampling needle to move along a first direction relative to the mounting frame; a second driving unit connected to the first driving unit, the second driving unit being used to drive the first driving unit to move along a second direction relative to the mounting frame, so as to drive 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 used to drive the sampling needle to move relative to the mounting frame along the height direction of the mounting frame, and the third driving unit can move 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 frame.

14. The chemical digestion treatment system according to claim 13, 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 used to drive the first driving rod to rotate around its own axis; A first moving member, wherein the first moving member is threadably matched with the first driving rod, and the sampling needle is connected to the first moving member.

15. The chemical digestion treatment system according to claim 14, characterized in that: The first driving unit further includes a first limiting rod, the first limiting rod is parallel to and spaced apart from the first driving rod, and the first moving member is slidably matched with the first limiting rod.

16. The chemical digestion treatment system according to claim 14, 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 matched with the first driving rod of the other first driving unit.

17. The chemical digestion treatment system according to claim 13, characterized in that: The second driving unit comprises: a second driving rod extending along the second direction; A second driving member, fixed to the mounting frame, connected to the second driving rod and used to drive the second driving rod to rotate around its own axis; A second moving member, wherein the second moving member is threadedly matched with the second driving rod, and the first driving unit is connected to the second moving member.

18. The chemical digestion treatment system according to claim 13, characterized in that: The third driving unit comprises: 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.

19. The chemical digestion treatment system according to claim 11, characterized in that: include: An ultrasonic water bath, wherein the ultrasonic water bath is located below the second driving assembly.

20. The chemical digestion treatment system according to any one of claims 1-5, 8-9, 12-19, characterized in that: include: A delivery pump, the delivery pump is 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.

21. A control method for a chemical digestion treatment system according to any one of claims 1 to 20, 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 to the first waste liquid tank.

22. The control method of the chemical digestion treatment system according to claim 21, characterized in that: Also includes: The cleaned sampling device is controlled to add a second reagent into the target container.

23. The control method of the chemical digestion treatment system according to claim 21 or 22, characterized in that: The cleaning tank comprises: 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 of 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 liquid in the second cavity; A delivery pump is provided between the first cavity and the liquid supply device, and the delivery pump is used to pump the cleaning liquid into the cleaning tank; Cleaning the sampling device comprises: Pumping cleaning liquid into the first cavity through the delivery pump, and keeping the delivery pump in an open state; The sampling device is controlled to extract liquid in the first cavity for cleaning.

24. The control method of the chemical digestion treatment system according to claim 23, 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.

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