Extraction device and extraction equipment

Abstract

The invention discloses an extraction device and extraction equipment. The extraction device comprises an extraction pool, a vibrator, a first power assembly and a plurality of second power assemblies. The extraction pool is provided with a bottom wall surface and a peripheral wall surface arranged around the bottom wall surface, the bottom wall surface and the peripheral wall surface jointly define a containing cavity, and the containing cavity is used for containing a sample. The vibrator is connected with the extraction tank, is arranged on one side, deviating from the accommodating chamber, of the bottom wall surface, and is used for vibrating the sample. The first power assembly is connected with the extraction pool and arranged in the containing cavity so as to be suitable for driving the sample to flow in the circumferential direction around the first axis, and the first axis is perpendicular to the bottom wall face. The plurality of second power assemblies are connected with the extraction tank, are all arranged in the accommodating chamber, and are distributed around the first power assembly so as to be suitable for driving the sample to circumferentially flow around the first axis. According to the invention, more uniform cavitation effect distribution is realized, and the extraction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of chemical detection of consumer products, and in particular to an extraction device and extraction equipment. Background Art

[0002] As an efficient sample pretreatment method, ultrasonic extraction technology has been widely used in chemical analysis, pharmaceutical industry, environmental monitoring and other fields. Its core principle relies on the ultrasonic transducer to convert high-frequency electrical energy into mechanical vibration, and stimulate the cavitation effect in the liquid medium through an immersion probe or a tank reactor. When the ultrasonic frequency is in the range of 20-100kHz, liquid molecules form micron-sized cavitation bubbles under the action of alternating sound pressure. These cavitation bubbles undergo a process of expansion, contraction and violent collapse in a very short time (microseconds). At the moment of collapse, a local high temperature of up to 5,000K and an instantaneous pressure of 500atm are generated, accompanied by a strong microjet impact (speed can reach 100m / s). This extreme physical condition can effectively break up the cell structure and accelerate the diffusion of molecules, thereby achieving efficient release of target components.

[0003] However, existing ultrasonic extraction equipment has significant defects in mechanical structure design, which seriously restricts the controllability and reproducibility of technical effects. Specifically, traditional ultrasonic probes mostly use a single axial vibration mode, which causes the sound field energy to present a significant gradient distribution in three-dimensional space. In a standard extraction cell, the cavitation intensity at the tip of the probe is higher than that in other areas. This non-uniform sound field distribution causes different areas of the sample to be subjected to differentiated mechanical effects, which directly leads to the spatial heterogeneity of the extraction efficiency. That is, the pre-treatment of the existing ultrasonic extraction method has different extraction efficiencies for the same batch of samples, and the reproducibility of the test results after the digestion of the standard sample is low. Summary of the invention

[0004] The main purpose of the present invention is to provide an extraction device and an extraction equipment, which can improve the consistency of extraction efficiency during the pre-treatment extraction process of the sample.

[0005] To achieve the above object, an embodiment of the first aspect of the present invention provides an extraction device, comprising: The extraction cell comprises a bottom wall surface and a peripheral wall surface arranged around the bottom wall surface, wherein the bottom wall surface and the peripheral wall surface jointly define a containing chamber, and the containing chamber is used to contain the sample; A vibrator connected to the extraction cell, the vibrator is arranged on a side of the bottom wall facing away from the containing chamber, and the vibrator is used to vibrate the sample; A first power assembly is connected to the extraction cell, and the first power assembly is disposed in the containing chamber to drive the sample to flow circumferentially around a first axis, wherein the first axis is perpendicular to the bottom wall surface; A plurality of second power components are connected to the extraction cell. The plurality of second power components are all arranged in the accommodation chamber. The plurality of second power components are distributed around the first power component to drive the circumferential flow of the sample around the first axis.

[0006] In some embodiments, the extraction cell includes a flow guiding rib plate. The flow guiding rib plate protrudes from the bottom wall surface. The flow guiding rib plate is circumferentially distributed around the first axis and extends in a direction away from the first axis. The flow guiding rib plate is adapted to guide the circumferential flow of the sample around the first axis.

[0007] In some embodiments, along the direction of the first axis, the relationship between the height h of the flow guiding rib plate and the depth D of the accommodation chamber satisfies: 0.025D ≤ h ≤ 0.1D; Wherein, the flow guiding rib plate is inclined upward, and the inclination angle α of the flow guiding rib plate satisfies: 5° ≤ α ≤ 30°.

[0008] In some embodiments, the driving force provided by the vibrator is opposite to the driving force provided by the second power component.

[0009] In some embodiments, the bottom wall surface has an intermediate region and an edge region surrounding the intermediate region. The peripheral wall surface is connected to the edge region. The first power component is arranged in the intermediate region, and the second power component is arranged in the edge region.

[0010] In some embodiments, the second power component includes a water pump. The water pump has a diversion pipeline. The diversion pipeline protrudes circumferentially around the first axis to guide the circumferential flow of the sample around the first axis.

[0011] In some embodiments, the diversion pipeline is arranged on the side of the water pump close to the bottom wall surface and is inclined upward.

[0012] In some embodiments, the extraction cell is provided with a water outlet. The water outlet is adapted to connect the accommodation chamber and the external environment to discharge the sample.

[0013] In some embodiments, along the extension direction of the bottom wall surface, the vibrator covers the bottom wall surface.

[0014] An embodiment of the second aspect of the present invention provides an extraction device, including the extraction device of any one of the above. The extraction device further includes a separation device. The separation device is connected to the extraction device to separate the extract from the sample.

[0015] According to the above embodiments, the beneficial effects of the present invention are: The extraction device of the present invention comprises an extraction cell, a vibrator and a second power assembly. The extraction cell has a bottom wall surface and a peripheral wall surface surrounding the bottom wall surface, and the bottom wall surface and the peripheral wall surface jointly define a receiving chamber, and the receiving chamber is used to receive a sample. The vibrator is connected to the extraction cell, and the vibrator is arranged on the side of the bottom wall surface away from the receiving chamber, and the vibrator is used to vibrate the sample to stimulate the cavitation effect in the sample. The second power assembly is connected to the extraction cell, and the second power assembly is used to drive the sample to flow circumferentially around a first axis, and the first axis is perpendicular to the bottom wall surface.

[0016] Since the vibrator acts on one side of the extraction cell, the vibration effect of the vibrator will weaken when it is transmitted in the sample due to factors such as the transmission distance, resulting in differences in the cavitation effects of different parts of the sample and large differences in the extraction efficiency.

[0017] The present application includes a first power assembly and a second power assembly, which drive the sample to move circumferentially around the first axis through the first power assembly and the second power assembly, ensuring that the sample can regularly contact various parts in the extraction pool. In this way, during the entire extraction process, the vibration effects on various parts of the sample in the extraction pool tend to be balanced, achieving a more uniform distribution of cavitation effects, thereby improving the consistency of extraction efficiency and the reproducibility of test results after sample digestion.

[0018] Furthermore, adding a first power component in the middle area can push the sample from the center to the outer edge, and work together with multiple second power components on the edge to form a more complex flow field structure. This two-way or multi-directional flow pattern helps to break the possible "dead zone" of the fluid, especially in the central part of the container, so that the sample flow in the entire holding chamber is more uniform. And the first power component in the middle area can supplement the insufficient power of the second power component in the edge area, especially when dealing with larger volumes or higher viscosity samples, one-sided power input may cause problems of local flow rate being too fast or too slow. The presence of the first power component can balance this power difference, so that the force on the sample in all directions is more balanced, so that the cavitation effect is more evenly distributed, and the consistency and reproducibility of the extraction are better.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 Schematic three - dimensional structure diagram of an extraction device in an embodiment of the present invention; Figure 2 is Figure 1 front - view structure diagram of the extraction device in Figure 3 is Figure 1 top - view structure diagram of the extraction device in Figure 4 is Figure 1 test structure diagram of the extraction device in Figure 5 Schematic structure diagram of an extraction device in an embodiment of the present invention, showing the arrangement position of the power assembly therein; Figure 6 is the structure diagram of the extraction device observed from another perspective Figure 5 in

[0022] Explanation of reference numerals in the drawings: Extraction tank 100; bottom wall surface 110; peripheral wall surface 120; accommodation chamber 130; Vibrator 200; Second power assembly 300; water pump 310; diversion pipeline 311; Middle area 400; Edge area 500; Diversion rib plate 600; First power assembly 700; Circumference X of the first axis.

[0023] The realization of the object of the present invention, functional features and advantages will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0025] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, such descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or", "or / and", or "and / or" appear throughout the text, their meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] Next, refer to Figures 1 to 6 to describe the extraction device and extraction equipment according to the embodiments of the present invention. Referring to Figures 1 to 4 , in some embodiments, the extraction device includes an extraction cell 100, a vibrator 200, and a second power assembly 300. The extraction cell 100 has a bottom wall surface 110 and a peripheral wall surface 120 arranged around the bottom wall surface 110. The bottom wall surface 110 and the peripheral wall surface 120 jointly define a receiving chamber 130 for receiving a sample. The extraction cell 100 serves as the basic structure of the entire device, providing a stable support function. At the same time, its internal space provides a relatively enclosed working environment for sample processing, which is conducive to improving the extraction efficiency. The vibrator 200 is disposed on the side of the bottom wall surface 110 facing away from the receiving chamber 130, and the vibrator 200 is used to vibrate the sample to generate a cavitation effect in the sample. The second power assembly 300 is connected to the extraction cell 100 and is disposed in the receiving chamber 130 to be adapted to drive the sample to flow circumferentially X around a first axis, where the first axis is perpendicular to the bottom wall surface 110.

[0028] Since the vibrator 200 acts on one side of the extraction cell 100, when the vibration effect of the vibrator 200 is transmitted in the sample, it will weaken due to factors such as the transmission distance, resulting in differences in the cavitation effect of each part of the sample and a large difference in extraction efficiency.

[0029] In this application, a second power assembly 300 is added. By driving the sample to move circumferentially around the first axis through the second power assembly 300, it is ensured that the sample can regularly contact each part in the extraction cell 100. In this way, during the entire extraction process, the vibration effects received by each part of the sample in the extraction cell 100 tend to be balanced, achieving a more uniform distribution of the cavitation effect, thereby improving the consistency of the extraction efficiency and the reproducibility of the test results after sample digestion.

[0030] Furthermore, adding the first driving component 700 in the middle region 400 can push the sample from the center to the outer edge, and jointly act with multiple second driving components 300 at the edge to form a more complex flow field structure. This two-way or multi-way flow pattern helps to break the possible "dead zones" of the fluid, especially in the central part of the container, making the sample flow in the entire accommodation chamber 130 more uniform. Moreover, the first driving component 700 in the middle region 400 can supplement the insufficient power of the second driving components 300 in the edge region 500. Especially when dealing with samples of larger volume or higher viscosity, one-sided power input may lead to problems such as too fast or too slow local flow rates. The presence of the first driving component 700 can balance this power difference, making the forces on the sample in all directions more balanced, so that the cavitation effect is more evenly distributed, and the consistency and reproducibility of extraction are better.

[0031] It can be understood that in some embodiments, in order to further optimize the uniform distribution of the sample cavitation effect, multiple vibrators 200 can be arranged in the accommodation chamber 130. The vibrators 200 can be ultrasonic sources or use array ultrasonic transducers, so that ultrasonic waves can be applied to the sample from multiple directions, reducing the areas that cannot receive sufficient ultrasonic energy or the areas that are significantly less affected by the ultrasonic energy waves. For example, using multiple groups of ultrasonic transducers arranged in a circular pattern, with a certain angular interval between each group, can make the ultrasonic wave coverage wider, thus ensuring that the samples at any position in the container can obtain ultrasonic treatment with a similar intensity. In addition, adjusting the frequency of the ultrasonic wave is also one of the effective means to improve the uniformity. Although high-frequency ultrasonic waves have better penetration, they may cause local overheating in some cases, affecting the extraction effect; in contrast, appropriately reducing the frequency can reduce this risk and help to form larger-sized bubbles, which is beneficial to the mass transfer process.

[0032] In some embodiments, the second driving component 300 is designed in a variable flow rate mode. For example, by adjusting the rotation speed or changing the shape and size of the stirring paddle, the mixing degree can be flexibly adjusted according to the sample characteristics and the required extraction time to achieve the best extraction effect. For example, using a stirring paddle with holes or grooves can not only increase the contact area with the sample, but also promote the generation of more microbubbles, thereby enhancing the cavitation effect.

[0033] In some embodiments, it can also be considered to coat a layer of reflective material on the inner wall of the accommodation chamber 130, such as aluminum foil or a special high-reflectivity coating, to reflect ultrasonic waves, making them pass through the sample layer multiple times, increasing the action path length of the ultrasonic waves, and thus improving the overall extraction efficiency. The reflective material should have good corrosion resistance to resist the erosion of chemical solvents. For example, choosing polytetrafluoroethylene (PTFE) as the coating material, it not only has excellent chemical resistance, but also can effectively reflect ultrasonic waves, meeting the above requirements.

[0034] It is understandable that in some other embodiments, in order to further improve the uniformity of water flow distribution, a flow guiding rib plate 600 can be added to the bottom wall surface 110. The setting of the flow guiding rib plate can change the flow direction of the water, making it more evenly distributed in the accommodation chamber 130. For example, the flow guiding rib plate 600 can be designed to have a certain inclination angle to facilitate guiding the water to flow along a predetermined path and avoid the situation of too fast or too slow local flow velocity. By reasonably adjusting the angle and position of the flow guiding rib plate 600, the water flow can be made more orderly, thereby improving the extraction performance of the entire system.

[0035] Furthermore, the extraction cell 100 includes a flow guiding rib plate 600. The flow guiding rib plate 600 protrudes from the bottom wall surface 110 and is distributed circumferentially X around the first axis. The flow guiding rib plate 600 extends in a direction away from the first axis and is adapted to guide the sample to flow circumferentially X around the first axis. When the first power assembly 700 drives the sample to rotate around the first axis, the sample moves outward under the action of centrifugal force. Due to the presence of the flow guiding rib plate 600, the sample will be guided to a specific direction, avoiding disordered flow. This ordered flow pattern not only helps to uniformly mix the sample and the solvent, but also promotes the mass transfer rate through continuous shear force and accelerates the extraction process.

[0036] In some embodiments, along the first axis direction, the relationship between the height h of the flow guiding rib plate 600 and the depth D of the accommodation chamber 130 satisfies 0.025D ≤ h ≤ 0.1D. For example, h is 0.025D, 0.050D, 0.075D, 0.1D. This helps to provide sufficient guiding effect when the sample flows circumferentially around the first axis, and at the same time does not overly impede the fluidity of the sample.

[0037] In some embodiments, the flow guiding rib plate 600 is inclined upward, and the inclination angle α of the flow guiding rib plate 600 satisfies 5° ≤ α ≤ 30°. For example, α is 5°, 10°, 15°, 20°, 25°, 30°. Such a design can ensure that the sample moves smoothly along the inclined surface of the flow guiding rib plate 600 when it is driven to rotate, thereby improving the extraction efficiency. Through this structure, the sample can form a stable annular flow pattern under the action of the flow guiding rib plate 600, making the contact between the solvent and the sample more uniform and improving the extraction effect.

[0038] Regarding the inclination angle α of the flow guiding rib plate 600, in some embodiments, when it is set to 10°, although the rising speed of the sample will slow down to some extent, its diffusion in the radial direction becomes smoother, which is beneficial to reducing the turbulence phenomenon and thus improving the extraction efficiency. In addition, it can also be considered to increase the number of the flow guiding rib plates 600 to two or more. These rib plates are evenly distributed around the first axis, and the height and inclination angle of each rib plate can be slightly different to adapt to different sample types and extraction requirements. For example, the height of the first layer of rib plate close to the center is set to 0.07D, and the inclination angle is 15°, while the height of the second layer of rib plate on the periphery is adjusted to 0.04D, and the inclination angle is 25°. This multi-layer design not only enhances the mixing effect of the sample, but also can flexibly adjust the rib plate parameters according to actual needs to achieve the best extraction effect.

[0039] In some embodiments, for application scenarios that require higher shear force, the inclination angle α can be appropriately increased to be close to 30°. A larger inclined surface is used to generate a stronger guiding effect, prompting the sample to form a more violent eddy current and accelerating the extraction speed.

[0040] In some embodiments, to adapt to different types of samples and extraction conditions, for example, for samples that are particularly prone to precipitation or stratification, a gradient height design can be adopted, that is, the height of the flow guiding rib plate 600 is gradually increased from the position close to the first axis outward. This can better maintain the suspended state of the sample and prevent sedimentation.

[0041] Referring to Figure 5 and Figure 6 and, in some embodiments, the second power assembly 300 includes a plurality of water pumps 310. These water pumps 310 are all connected to the extraction tank 100, and the plurality of water pumps 310 are respectively spaced apart and distributed in the accommodation chamber 130. Specifically, each water pump 310 is designed to have a specific power and flow rate output to ensure that it can effectively push the sample to flow in the accommodation chamber 130. First, the water pump 310 serves as a power source. The impeller is driven by a motor to rotate, thereby generating a pressure difference, causing the sample to flow from the low-pressure area to the high-pressure area to form a directional flow. Since the plurality of water pumps 310 are spaced apart, the water flows generated by them complement each other to form a uniform flow field, which helps to avoid the problem of uneven extraction caused by too fast or too slow local flow rates. Secondly, the distance between the water pumps 310 is designed to maximize the coverage of the entire accommodation chamber 130 while minimizing the interference between each other. This layout not only promotes the mass exchange in the sample, but also improves the contact efficiency between the sample and the extraction medium, thereby enhancing the overall extraction effect. For example, when extracting plant essence, more efficient component release can be achieved by optimizing the position and parameter settings of the water pumps 310.

[0042] It can be understood that in some embodiments, for example, in order to meet different types of extraction requirements, a water pump 310 with a variable frequency speed regulation function can be introduced into the second power component 300. Such a water pump 310 allows users to adjust the rotation speed according to actual needs, thereby controlling the speed and intensity of the water flow. When processing relatively sensitive or fragile materials, reducing the rotation speed of the water pump 310 can reduce physical damage to the materials; while in cases where a rapid establishment of a flowing environment is required, the rotation speed can be increased to accelerate the process. In addition, by adjusting the operating frequency of the water pump 310, the amount of energy input required during the extraction process can also be precisely regulated, achieving the effect of energy conservation and emission reduction.

[0043] It can be understood that in some embodiments, in addition to the second power component 300 mentioned above being composed of multiple water pumps 310, other forms of power sources can also be used to achieve similar functions. For example, a magnetic stirrer can be used instead of the water pump 310 as part of the second power component 300. The magnetic stirrer includes a rotating magnetic field generator located outside the accommodation chamber 130 and a magnetic stir bar placed inside the chamber. When the rotating magnetic field generator is started, the magnetic stir bar will rotate rapidly under the action of the magnetic field, driving the surrounding samples to rotate accordingly. This method can not only reduce the wear of mechanical components but also lower the maintenance cost. Additionally, for certain special application scenarios, such as when dealing with high-temperature or corrosive substances, water pumps 310 made of high-temperature resistant or corrosion-resistant materials, such as ceramic pumps or titanium alloy pumps, can be considered to enhance the durability and safety of the equipment.

[0044] Referring to Figure 1 and Figure 5 , in some embodiments, multiple water pumps 310 are all arranged on the bottom wall surface 110. The water pumps 310 are arranged on the bottom wall surface 110, and the vibrator 200 acts on the bottom wall surface 110. The water pumps 310 can efficiently push the samples to flow circumferentially along the first axis, ensuring the uniform distribution of the samples in the accommodation chamber 130 and being more evenly affected by the vibration from the bottom wall surface 110.

[0045] It can be understood that in some embodiments, in order to further optimize the above design, the number, position of the water pumps 310, and the design of the flow channels can all be adjusted. For example, six water pumps 310 can be arranged on the bottom wall surface 110. By increasing the number of water pumps 310 and reasonably arranging their positions, the flow of the samples can be made more balanced, reducing the possible dead zones in local areas. In addition, referring to Figure 3 , the diversion pipelines 311 of each water pump 310 can also adopt different shapes or angle designs to meet the requirements of different application scenarios. For example, designing the diversion pipeline 311 to be flat or trumpet-shaped can change the speed distribution when the samples flow, thereby better controlling the flow path of the samples.

[0046] In some embodiments, the driving force provided by the vibrator 200 is in the opposite direction to the driving force provided by the second power assembly 300. Specifically, the vibration direction applied by the vibrator 200 to the sample is opposite to the direction in which the first power assembly 700 and the second power assembly 300 drive the sample to flow circumferentially around the first axis. Designed in this way, through the mutually opposing vibration and driving forces, the cavitation effect is further enhanced.

[0047] Referring to Figure 5 and Figure 6 , in some embodiments, the bottom wall surface 110 has an intermediate region 400 and an edge region 500 surrounding the intermediate region 400. The peripheral wall surface 120 is connected to the edge region 500, and the water pump 310 is provided in the edge region 500. Since the water pumps 310 are located at the edge, the water flow generated by them can diffuse from the periphery to the center, forming an annular flow pattern. This layout helps to prevent the sample from stagnating in the center of the container, ensuring that all samples can be fully contacted and stirred.

[0048] In this configuration, the vibrator 200 and the water pump 310 work together. On the one hand, the vibrator 200 transfers vibration energy to the sample through the bottom wall surface 110, promoting the interaction between substances; on the other hand, the power generated by the water pump 310 provides additional mechanical disturbance, further enhancing the cavitation effect. This dual-action mechanism greatly improves the consistency of the extraction efficiency and reduces the effect differences caused by uneven local flow rates.

[0049] To further improve the performance, different types of water pumps 310 can be selected according to actual needs, such as centrifugal pumps or axial flow pumps. Each type has its unique working principle and applicable scenarios. Centrifugal pumps are suitable for applications that require higher pressure, while axial flow pumps are more suitable for situations with large flow rates and low head. By comprehensively considering these factors, an extraction device that is both efficient and energy-saving can be designed to meet the requirements under various complex working conditions.

[0050] Referring to Figure 3 , in some embodiments, the water pumps 310 are circumferentially distributed around the first axis in the circumferential direction X to be suitable for driving the sample to flow circumferentially around the first axis in the circumferential direction X. The water pumps 310 are evenly distributed on the bottom wall surface 110, and their positions are designed to be circumferentially distributed around the first axis perpendicular to the bottom wall surface 110. This layout ensures that the water pumps 310 can uniformly push the sample to move circumferentially along the first axis in the circumferential direction X. In actual operation, when the second power assembly 300 is started, each water pump 310 works synchronously, generating a consistent thrust, so that the sample forms an annular flow pattern in the accommodation chamber 130. This flow pattern not only helps to increase the contact area between the sample and the solvent, but also promotes the uniform distribution of the cavitation effect, thereby improving the efficiency consistency of the sample in the pretreatment extraction process.

[0051] Referring to Figure 3, in some embodiments, the bottom wall surface 110 is square, and the bottom wall surface 110 has four corner regions, and the water pumps 310 are respectively arranged in the four corner regions. This layout utilizes the geometric characteristics of the square bottom wall surface 110 to distribute the water pumps 310 at the corners, maximizing the use of space while ensuring the directionality of the water flow. Moreover, in this configuration, the water flow generated by the water pumps 310 tends to flow along two adjacent sides, making it easier to form a stable circulation pattern.

[0052] It can be understood that, in some embodiments, in order to further improve the performance, a flow deflector or guide vanes can be added at the outlet of the water pump 310 to precisely control the water flow direction and speed. For example, if it is necessary to enhance the flow rate in a specific direction, it can be achieved by adjusting the angle of the flow deflector.

[0053] In some embodiments, the extraction tank 100 of the present application is designed as a square tank with a length of 400 cm, a width of 360 mm, and a height of 400 cm. The extraction tank 100 with such dimensions is more convenient for the operation of the second power assembly 300, facilitating the second power assembly 300 to drive the sample to uniformly contact various positions in the accommodation chamber 130. Of course, it can be understood that the dimensions of the aforementioned extraction tank 100 are not limited to the above data, and it can be a proportional relationship. For example, the length, width, and height are configured in a ratio of 10:9:10. Of course, since the sample is a fluid, the driving effect of the second power assembly 300 on the fluid is complex and has little difference within a certain range. Therefore, the above proportional relationship is only a preferred design, and the proportional relationships in the nearby ranges are also within the protection scope of the present application.

[0054] Referring to Figure 3 , in some embodiments, multiple water pumps 310 all have diversion pipes 311, and multiple diversion pipes 311 all protrude in a direction perpendicular to the first axis, and the multiple diversion pipes are distributed circumferentially X around the first axis to be suitable for guiding the sample to flow circumferentially X around the first axis. Such a design ensures that the water flow can effectively push the sample to move circumferentially X along the first axis. In actual operation, when the second power assembly 300 is started, each water pump 310 works synchronously to generate a consistent thrust, and guides the water flow in a specific direction through the diversion pipes 311. The design of the diversion pipes enables the water flow to flow along a predetermined path, enhancing the annular flow pattern of the sample.

[0055] It can be understood that, in some embodiments, the design of the diversion pipes 311 can be more diverse. For example, the diversion pipes can adopt an adjustable angle design, enabling the operator to adjust the water flow direction and speed according to specific requirements. This can achieve the best flow effect in different application scenarios and improve the adaptability of the device.

[0056] The number and distribution of the diversion pipes 311 are also important factors affecting the flow effect. In some embodiments, the uniformity and stability of the flow can be enhanced by increasing the number of diversion pipes and arranging their positions reasonably. Specifically, if stronger annular flow is required, the number of diversion pipes can be increased and evenly distributed on the bottom wall surface 110.

[0057] Referring to Figure 3 , in some embodiments, the extraction tank 100 is provided with a water outlet, and the water outlet is adapted to communicate the accommodation chamber 130 with the external environment to discharge the sample. The position of the water outlet is usually located at the bottom or side wall of the extraction tank 100 to facilitate the discharge of the treated mixture.

[0058] In some embodiments, a water outlet design with a valve can be adopted, so that it remains sealed during the extraction process to prevent leakage, and when drainage is required, rapid liquid discharge is achieved by opening the valve. This design not only simplifies the operation process but also improves work efficiency.

[0059] It can be understood that in some embodiments, the design of the water outlet can be more flexible and diverse. For example, the water outlet can be set to multiple ones, distributed at different positions of the extraction tank 100 to meet different liquid discharge requirements. For certain application scenarios, it may be necessary to drain water from both the bottom and the side wall simultaneously, and in this case, the multi-outlet design is particularly important.

[0060] It can be understood that in some embodiments, the design of the water outlet can also be combined with a filtering device to remove impurities or particulate matters in the discharged sample. For example, installing a filter screen or filter element at the water outlet can preliminarily purify the sample while discharging the liquid, which is beneficial to subsequent processing steps.

[0061] Referring to Figure 2 and Figure 4 , in some embodiments, along the extension direction of the bottom wall surface 110, the vibrator 200 covers the bottom wall surface 110. The design of the vibrator 200 enables it to cover the entire bottom wall surface 110, and together with the second power assembly 300, further ensures that the sample can be uniformly vibrated throughout the accommodation chamber 130.

[0062] In actual operation, when the vibrator 200 is started, the mechanical vibration generated by it is transmitted to the sample in the accommodation chamber 130 through the bottom wall surface 110. Since the vibrator 200 covers the entire bottom wall surface 110, the vibration energy can be evenly distributed over a larger range, thereby enhancing the interaction inside the sample. This design not only improves the consistency of the extraction efficiency but also reduces the effect differences caused by uneven local vibration. In addition, the second power assembly 300 works synchronously, further promoting the flow and mixing of the sample and improving the overall extraction effect.

[0063] It can be understood that in some embodiments, the type and driving mechanism of the vibrator 200 can be diversified. For example, an ultrasonic vibrator 200 or a piezoelectric ceramic vibrator 200 can be used. These types of vibrators 200 can provide higher vibration frequencies and more precise control, which helps to achieve more efficient mixing and dispersion of substances.

[0064] In some embodiments, the installation position and fixing method of the vibrator 200 can also be adjusted. For example, multiple small vibrators 200 can be arranged on the bottom wall surface 110 instead of a single large vibrator 200. This can not only improve the uniformity and consistency of vibration but also reduce the impact of vibration on other components of the device. In addition, the vibrator 200 can be installed on the bottom wall surface 110 through an elastic bracket or a shock-absorbing device to reduce the vibration transmitted to the extraction tank 100 or other external structures, thereby reducing noise and equipment wear.

[0065] An embodiment of the second aspect of the present application provides an extraction device, which includes the extraction device of any one of the above, and the extraction device number includes a separation device. The separation device is connected to the extraction device to separate the extract from the mixture of the sample.

[0066] In actual operation, the sample is first placed in the accommodation chamber 130 of the extraction device. Through the action of the vibrator 200 and the second power component 300, the sample is fully mixed with the solvent and the preliminary extraction process is completed. Then, the extraction liquid is discharged through the diversion pipeline 311 and enters the separation device. The separation device uses physical or chemical methods (such as filtration, centrifugation, membrane separation, etc.) to separate the target extract from the mixture and obtain a pure target product.

[0067] It can be understood that in some embodiments, in order to further enhance the effect of the above design, improvements can be made from multiple aspects. First, the design of the separation device can be more flexible and diverse. For example, different types of separation techniques can be selected for the separation device, such as filtration, centrifugation, membrane separation, chromatographic separation, etc., to meet different separation requirements. For some application scenarios with high-precision requirements, a multi-stage separation system can be adopted, first performing rough separation and then fine separation to ensure the purity of the final product. Secondly, the separation device can be combined with an automated control system to achieve intelligent management. For example, sensors can be installed on the extraction device to monitor various parameters (such as flow rate, pressure, concentration, etc.) during the separation process, and the separation conditions can be automatically adjusted through a feedback control system to achieve the best separation effect. In addition, an on-line monitoring system can also be designed to monitor the key indicators during the separation process in real time, and promptly discover and solve possible problems.

[0068] The extraction device of the extraction equipment of the present application includes an extraction cell 100, a vibrator 200 and a second power assembly 300. The extraction cell 100 has a bottom wall surface 110 and a peripheral wall surface 120 surrounding the bottom wall surface 110, and the bottom wall surface 110 and the peripheral wall surface 120 jointly define a receiving chamber 130, and the receiving chamber 130 is used to receive the sample. The vibrator 200 is connected to the extraction cell 100, and the vibrator 200 is arranged on the side of the bottom wall surface 110 away from the receiving chamber 130, and the vibrator 200 is used to vibrate the sample to stimulate the cavitation effect in the sample. The second power assembly 300 is connected to the extraction cell 100, and the second power assembly 300 is used to drive the sample to flow in the circumferential direction X around the first axis, and the first axis is perpendicular to the bottom wall surface 110.

[0069] Since the vibrator 200 acts on one side of the extraction cell 100, the vibration effect of the vibrator 200 will weaken due to the influence of factors such as the transmission distance when it is transmitted in the sample, resulting in different cavitation effects in different parts of the sample and large differences in extraction efficiency.

[0070] The extraction device of the present application is provided with a second power assembly 300, which drives the sample to move circumferentially around the first axis, ensuring that the sample can regularly contact various parts in the extraction cell 100. In this way, during the entire extraction process, the vibration effects on various parts of the sample in the extraction cell 100 tend to be balanced, achieving a more uniform distribution of cavitation effects, thereby improving the consistency of extraction efficiency and the reproducibility of test results after sample digestion.

[0071] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An extraction device, characterized in that, Comprising: An extraction cell having a bottom wall surface and a peripheral wall surface disposed around the bottom wall surface, the bottom wall surface and the peripheral wall surface jointly defining a receiving chamber for receiving a sample; A vibrator connected to the extraction cell, the vibrator being disposed on a side of the bottom wall surface facing away from the receiving chamber, the vibrator being adapted to vibrate the sample; A first power assembly connected to the extraction cell, the first power assembly being disposed in the receiving chamber to be adapted to drive the sample to flow circumferentially around a first axis perpendicular to the bottom wall surface; A plurality of second power assemblies connected to the extraction cell, the plurality of second power assemblies being disposed in the receiving chamber, the plurality of second power assemblies being distributed around the first power assembly to be adapted to drive the sample to flow circumferentially around the first axis.

2. The extraction device according to claim 1, wherein The extraction cell includes a flow guiding rib plate protruding from the bottom wall surface, the flow guiding rib plate being circumferentially distributed around the first axis and extending in a direction away from the first axis, the flow guiding rib plate being adapted to guide the sample to flow circumferentially around the first axis.

3. The extraction device according to claim 2, wherein In the direction of the first axis, the relationship between the height h of the flow guiding rib plate and the depth D of the receiving chamber satisfies: 0.025D ≤ h ≤ 0.1D; Wherein, the flow guiding rib plate is inclined upward, and the inclination angle α of the flow guiding rib plate satisfies: 5°≤α≤30°。 4. The extraction device according to claim 1, wherein, The driving force provided by the vibrator is opposite to the driving force provided by the second power assembly.

5. The extraction device according to claim 1, characterized in that, The bottom wall surface has a middle region and an edge region surrounding the middle region, the peripheral wall surface is connected to the edge region, the first power assembly is disposed in the middle region, and the second power assembly is disposed in the edge region.

6. The extraction device according to claim 5, characterized in that, The second power assembly includes a water pump having a diversion pipeline protruding circumferentially around the first axis to be adapted to guide the sample to flow circumferentially around the first axis.

7. The extraction device according to claim 6, characterized in that, The diversion pipeline is disposed on a side of the water pump close to the bottom wall surface, and the diversion pipeline is inclined upward.

8. The extraction device according to claim 1, characterized in that The extraction cell is provided with a water outlet adapted to communicate the receiving chamber with the external environment to discharge the sample.

9. The extraction device according to claim 1, wherein In the extending direction of the bottom wall surface, the vibrator covers the bottom wall surface.

10. An extraction device, characterized in that, Comprising the extraction device according to any one of claims 1 to 9, the extraction equipment further includes a separation device connected to the extraction device to be adapted to separate the extract from the sample.

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