A supercritical extraction device for traditional Chinese medicine based on high-energy microbubble technology

Abstract

The present invention discloses a supercritical extraction device for traditional Chinese medicine based on high-energy microbubble technology, belonging to the field of supercritical extraction devices. A supercritical extraction device for traditional Chinese medicine based on high-energy microbubble technology continuously injects supercritical carbon dioxide into the main body of the extraction kettle through a feed pipe. When the supercritical carbon dioxide passes through the high-energy microbubble generating device, supercritical carbon dioxide bubbles will be formed and rise in the liquid material. As the supercritical carbon dioxide bubbles rise, the hydraulic pressure they are subjected to decreases. The supercritical carbon dioxide bubbles are extremely prone to explosion by themselves. And some of the supercritical carbon dioxide bubbles that do not explode by themselves are also extremely prone to explosion under the action of external force extrusion and stimulation when they touch the bubble extinguishing net. The instantaneous energy generated by the explosion will evenly mix the supercritical carbon dioxide and the liquid material, greatly increasing the extraction efficiency of the supercritical carbon dioxide in the liquid material.

Description

Technical Field

[0001] The present invention relates to the field of supercritical extraction devices, and more specifically, to a supercritical extraction device for traditional Chinese medicine based on high-energy microbubble technology. Background Art

[0002] Supercritical refers to a supercritical fluid, which is a state that is neither gaseous nor liquid and lies between gas and liquid. This substance can only exist when its temperature and pressure exceed the critical point. The density of supercritical fluid is relatively large, similar to that of a liquid, while its viscosity is closer to that of a gas. Therefore, supercritical fluid is an ideal extraction agent. The principle of the supercritical CO2 fluid extraction (SFE) separation process is based on the relationship between the solubility of supercritical fluid and its density, that is, it is carried out by using the influence of pressure and temperature on the solubility of supercritical fluid. In the supercritical state, the supercritical fluid is brought into contact with the substance to be separated, so that it selectively extracts components with different polarities, boiling points, and molecular weights in sequence. Of course, the extracts obtained for each pressure range cannot be single, but the conditions can be controlled to obtain a mixture with the best ratio. Then, by means of pressure reduction and temperature increase, the supercritical fluid is turned into a normal gas, and the extracted substance is completely or basically precipitated, so as to achieve the purpose of separation and purification. Therefore, the supercritical CO2 fluid extraction process is composed of an extraction process and a separation process.

[0003] Due to the relatively high cost of the supercritical extraction device itself and the relatively harsh production conditions, it is usually used for the extraction of high-value substances. The effective target components in traditional Chinese medicine just meet the above requirements. Therefore, supercritical extraction is usually selected for the purification of some effective target components in traditional Chinese medicine that are difficult to be purified by traditional technologies.

[0004] However, due to the relatively complex components of traditional Chinese medicine itself, during the supercritical extraction process, the extraction efficiency is extremely easy to be affected by flocculent or other impurities generated by interfering components. At the same time, these impurities are also easy to be mixed in the extraction solution, which affects the purification of subsequent effective target components. Summary of the Invention

[0005] 1. Technical Problems to be Solved

[0006] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a supercritical extraction device for traditional Chinese medicine based on high-energy microbubble technology, which can greatly reduce the influence of flocculent or other impurities generated during the supercritical extraction of traditional Chinese medicine on the supercritical extraction efficiency and is not easy to affect the purification of subsequent effective target components.

[0007] 2. Technical Solutions

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A supercritical extraction device for traditional Chinese medicine based on high-energy microbubble technology comprises an extraction kettle body, wherein feed liquid and extract are contained in the extraction kettle body, the upper end opening of the extraction kettle body is fixedly connected with a kettle cover matching the extraction kettle body, a sealing gasket is connected between the extraction kettle body and the kettle cover, and the sealing gasket is fixedly connected to the kettle cover, the lower end of the extraction kettle body is fixedly connected with a feed pipe, one end of the feed pipe close to the extraction kettle body passes through the feed pipe and extends into the extraction kettle body, one end of the feed pipe located in the extraction kettle body is fixedly connected with a high-energy microbubble generating device matching the extraction kettle body, a pair of limiting slide grooves are cut on the side wall of the extraction kettle body, and the A mesh frame matching the extraction kettle body is slidably connected inside the extraction kettle body, and the mesh frame includes a circular frame portion and an ear block portion fixedly connected to the outer wall of the circular frame portion, and the ear block portion matches the limiting slide groove. The extraction kettle body and the mesh frame are directional slidably connected through the limiting slide groove and the ear block portion. An anti-blocking curtain is fixedly connected to the notch of the limiting slide groove, and the anti-blocking curtain includes multiple elastic fibers. The multiple elastic fibers are cross-entangled with each other to form multiple compartments for division, which can greatly reduce the influence of flocs or other impurities generated by traditional Chinese medicine during supercritical extraction on the supercritical extraction efficiency, and is not easy to affect the subsequent purification of effective target components.

[0010] Furthermore, there is an obvious difference in density between the feed liquid and the extract, and the density of the feed liquid is slightly higher than that of the extract. Technicians can use inert inorganic salts that are only soluble in the feed liquid to adjust the density of the feed liquid. The overall density of the screen frame and the defoaming net is close to the density of the feed liquid, so that the screen frame and the defoaming net can be suspended in the feed liquid and can only sink to the bottom of the extract. After the extract and the feed liquid are separated into layers, the screen frame and the defoaming net are always in the feed liquid layer, so that the detonation of the supercritical carbon dioxide bubbles can be carried out in the feed liquid layer as much as possible, thereby increasing the utilization efficiency of the supercritical carbon dioxide bubbles.

[0011] Furthermore, a limiting slide bar is fixedly connected between the side walls of the limiting slide groove, and the limiting slide bar passes through the mesh frame. The limiting slide bar has a limiting function, so that the mesh frame is not prone to tilting or tipping when sliding in the extraction kettle body.

[0012] Furthermore, a wear-resistant ring is connected between the screen frame and the limiting slide bar, and the wear-resistant ring is fixedly connected to the screen frame. The wear-resistant ring can greatly reduce the wear between the screen frame and the limiting slide bar, making the connection between the screen frame and the limiting slide bar less likely to shake.

[0013] Furthermore, the defoaming net comprises a net body, the lower end of which is fixedly connected to a puncturing needle net, wherein a section of the puncturing needle net away from the net body is a sharp end, so as to facilitate puncturing of supercritical carbon dioxide bubbles.

[0014] Furthermore, capture barbs are fixedly connected to the side wall of the needle-breaking net. An elastic cavity is formed in the capture barb. The capture barb can capture flocculent impurities suspended in the feed liquid. The capture barb with the elastic cavity will greatly increase its own elasticity. Without affecting the capture effect of the needle-breaking net, the needle-breaking net can be directly bent and deformed by an external force for cleaning, which is convenient for subsequent unified cleaning of the capture barbs.

[0015] Furthermore, the elastic fiber includes a fiber main body. A filling cavity is formed in the fiber main body, and the filling cavity is far away from the connection end of the anti-blocking curtain and the side wall of the limit sliding groove, which can greatly increase the elasticity of the anti-blocking curtain and is not easy to cause the anti-blocking curtain to break hard under the action of the mesh frame.

[0016] Furthermore, a main rod is inserted into the filling cavity. Both ends of the main rod are fixedly connected to the fiber main body. A plurality of filling particles are filled in the filling cavity. The main rod can increase the toughness of the fiber main body, while the filling particles can increase the strength of the fiber main body, so that the fiber main body is not easy to have excessive elastic deformation under the action of an external force and is not easy to cause the fiber main body to break directly.

[0017] Furthermore, a plurality of capillary fibers are fixedly connected to the outer side of the main rod. One end of the capillary fiber far away from the main rod sequentially penetrates through the filling particles and the fiber main body and extends to the outside of the fiber main body. The capillary fiber can strengthen the fiber main body, so that the fiber main body is not easy to crack or break due to excessive deformation. At the same time, the capillary fibers penetrating through the filling particles form a fixed relationship with each other. When the fiber main body cracks or breaks, the capillary fibers are extremely not easy to fall off from the main rod, and the filling particles are not easy to leak out of the filling cavity, which is not easy to affect the extraction environment in the extraction kettle body. Adjacent anti-blocking curtains are also connected through the entangled capillary fibers.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the advantages of the present invention are as follows:

[0020] In this solution, the liquid level height of the feed liquid in the extraction kettle body is not lower than the heights of the wire frame and the defoaming net. The temperature and air pressure in the extraction kettle body are adjusted to the conditions required for the critical state of the extraction agent carbon dioxide. Supercritical carbon dioxide is continuously injected into the extraction kettle body through the feed pipe. When the supercritical carbon dioxide passes through the high-energy microbubble generating device, supercritical carbon dioxide bubbles will be formed and rise in the feed liquid. As the supercritical carbon dioxide bubbles rise, the hydraulic pressure they are subjected to decreases. The supercritical carbon dioxide bubbles are extremely prone to explosion by themselves. And some of the supercritical carbon dioxide bubbles that do not explode by themselves are also extremely prone to explosion under the action of external force extrusion stimulation after touching the defoaming net. The instantaneous energy generated by the explosion will evenly mix the supercritical carbon dioxide and the feed liquid, greatly increasing the extraction efficiency of the supercritical carbon dioxide in the feed liquid. It can significantly reduce the influence of flocculent or other impurities generated during the supercritical extraction of traditional Chinese medicine on the supercritical extraction efficiency and is not likely to affect the purification of subsequent effective target components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the main structure explosion diagram of the extraction kettle for the present invention;

[0022] Figure 2 is the structure schematic diagram of the extraction kettle for the present invention;

[0023] Figure 3 is the front sectional view of the extraction kettle for the present invention;

[0024] Figure 4 is Figure 3 the structure schematic diagram at position A in

[0025] Figure 5 is the partial structure schematic diagram of the surface of the defoaming net for the present invention;

[0026] Figure 6 is the front sectional view of the elastic fiber for the present invention;

[0027] Figure 7 is Figure 6 the structure schematic diagram at position B in

[0028] Description of the reference numerals in the drawings:

[0029] 1 Extraction kettle body, 2 Kettle cover, 3 Sealing gasket, 4 Feed pipe, 5 High-energy microbubble generating device, 6 Limit sliding groove, 7 Wire frame, 8 Defoaming net, 801 Net body, 802 Bubble-breaking needle, 803 Capture barb, 804 Elastic cavity, 9 Limit sliding rod, 10 Wear-resistant ring, 11 Anti-blocking curtain, 1101 Fiber main body, 1102 Filling cavity, 1103 Main rod, 1104 Filling particles, 1105 Capillary fiber. DETAILED DESCRIPTION OF THE INVENTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] Embodiment 1:

[0034] Please refer to Figures 1-4, A supercritical extraction device for traditional Chinese medicine based on high-energy microbubble technology, including an extraction kettle main body 1. The extraction kettle main body 1 contains the feed liquid and the extraction liquid for supercritical extraction work. The upper end opening of the extraction kettle main body 1 is fixedly connected with a kettle cover 2 that matches itself. A sealing gasket 3 is connected between the extraction kettle main body 1 and the kettle cover 2, and the sealing gasket 3 is fixedly connected with the kettle cover 2. The extraction kettle main body 1 and the kettle cover 2 are fixedly connected and disassembled through buckles, which is well-known technology to those skilled in the art, so it will not be described in detail and illustrated in the specification and drawings of this application. The lower end of the extraction kettle main body 1 is fixedly connected with a feed pipe 4. One end of the feed pipe 4 close to the extraction kettle main body 1 penetrates the feed pipe 4 and extends into the extraction kettle main body 1. The end of the feed pipe 4 located inside the extraction kettle main body 1 is fixedly connected with a high-energy microbubble generating device 5 that matches itself. A pair of limiting sliding grooves 6 are dug on the side wall of the extraction kettle main body 1. A mesh frame 7 that matches itself is slidably connected inside the extraction kettle main body 1. The mesh frame 7 includes a circular frame part and an ear block part fixedly connected to the outer side wall of the circular frame part, and the ear block part matches the limiting sliding groove 6. The extraction kettle main body 1 and the mesh frame 7 are directionally slidably connected through the limiting sliding groove 6 and the ear block part. A clogging prevention curtain 11 is fixedly connected at the notch of the limiting sliding groove 6. The clogging prevention curtain 11 includes a plurality of elastic fibers, and the plurality of elastic fibers are intertwined with each other to form a plurality of compartments for partitioning. The compartments have an isolation effect, making it difficult for impurities in the feed liquid to enter the limiting sliding groove 6 and not easily affecting the normal sliding of the mesh frame 7.

[0035] Specifically, for the normal operation of the extraction kettle body 1, temperature and pressure detection and control devices, a discharging system and other structures need to be configured. At the same time, a solenoid valve that can control the opening or closing of the feed pipe 4 and a power structure such as a supply pump also need to be installed in the feed pipe 4 to ensure the normal operation of the extraction kettle body 1. The above specific structures and their cooperation methods with the extraction kettle body 1 in this application are well-known technologies to those skilled in the art, so they will not be described in detail or illustrated in the specification and the accompanying drawings of this application. When the extraction kettle body 1 is operating normally, the kettle cover 2 is in a sealed state. The extraction kettle body 1 is filled with the liquid material for extraction, and the liquid level height of the liquid material in the extraction kettle body 1 is not lower than the heights of the mesh frame 7 and the defoaming net 8. The temperature and pressure in the extraction kettle body 1 are adjusted to the conditions required for the critical state of the extraction agent carbon dioxide. Supercritical carbon dioxide is continuously injected into the extraction kettle body 1 through the feed pipe 4. When the supercritical carbon dioxide passes through the high-energy microbubble generating device 5, supercritical carbon dioxide bubbles will be formed and rise in the liquid material. As the supercritical carbon dioxide bubbles rise, the hydraulic pressure they are subjected to decreases. The supercritical carbon dioxide bubbles are extremely prone to explosion by themselves. And some of the supercritical carbon dioxide bubbles that do not explode by themselves are also extremely prone to explosion under the external force extrusion and stimulation when they touch the defoaming net 8. The instantaneous energy generated by the explosion will evenly mix the supercritical carbon dioxide and the liquid material, greatly increasing the extraction efficiency of the supercritical carbon dioxide in the liquid material, and can significantly reduce the influence of flocculent or other impurities generated during the supercritical extraction of traditional Chinese medicine on the supercritical extraction efficiency, and is not likely to affect the purification of subsequent effective target components.

[0036] Please refer to Figure 4 , there is an obvious difference in density between the liquid material and the extraction liquid, and the density of the liquid material is slightly higher than that of the extraction liquid. Technicians can adjust the density of the liquid material by using inert inorganic salts that are only soluble in the liquid material. The overall density of the mesh frame 7 and the defoaming net 8 is close to the density of the liquid material, so that the mesh frame 7 and the defoaming net 8 can be suspended in the liquid material and can only sink to the bottom in the extraction liquid. After the extraction liquid and the liquid material are stratified, the mesh frame 7 and the defoaming net 8 are always in the liquid material layer, which can make the detonation of the supercritical carbon dioxide bubbles be carried out in the liquid material layer as much as possible, increasing the utilization efficiency of the supercritical carbon dioxide bubbles. A limiting slide bar 9 is fixedly connected between the side walls of the limiting slide groove 6. The limiting slide bar 9 penetrates through the mesh frame 7. The limiting slide bar 9 has a limiting effect, making it difficult for the mesh frame 7 to tilt or roll over when sliding in the extraction kettle body 1. A wear-resistant ring 10 is connected between the mesh frame 7 and the limiting slide bar 9. The wear-resistant ring 10 is fixedly connected to the mesh frame 7. The wear-resistant ring 10 can greatly reduce the wear between the mesh frame 7 and the limiting slide bar 9, making the connection between the mesh frame 7 and the limiting slide bar 9 not prone to shaking.

[0037] Please refer to Figure 5, the defoaming net 8 includes a net body 801. A needle-breaking net 802 is fixedly connected to the lower end of the net body 801. One end of the needle-breaking net 802 away from the net body 801 is a sharp end, which is convenient for piercing supercritical carbon dioxide bubbles. A capture barb 803 is fixedly connected to the side wall of the needle-breaking net 802. An elastic cavity 804 is formed in the capture barb 803. The capture barb 803 can capture flocculent impurities suspended in the feed liquid. The capture barb 803 with the elastic cavity 804 formed therein will greatly increase its own elasticity. Without affecting the capture effect of the needle-breaking net 802, the needle-breaking net 802 can be directly bent and deformed by an external force for cleaning, which is convenient for subsequent unified cleaning of the capture barb 803.

[0038] Please refer to Figures 6-7 , the elastic fiber includes a fiber main body 1101. A filling cavity 1102 is formed in the fiber main body 1101, and the filling cavity 1102 is away from the connection end of the anti-blocking curtain 11 and the side wall of the limit sliding groove 6, which can greatly increase the elasticity of the anti-blocking curtain 11 and is not likely to cause the anti-blocking curtain 11 to break rigidly under the action of the net frame 7. A main rod 1103 is inserted into the filling cavity 1102. Both ends of the main rod 1103 are fixedly connected to the fiber main body 1101. A plurality of filling particles 1104 are filled in the filling cavity 1102. The main rod 1103 can increase the toughness of the fiber main body 1101, while the filling particles 1104 can increase the strength of the fiber main body 1101, so that the fiber main body 1101 is not likely to undergo excessive elastic deformation under the action of an external force and is not likely to cause the fiber main body 1101 to break directly. A plurality of capillary fibers 1105 are fixedly connected to the outer side of the main rod 1103. One end of the capillary fiber 1105 away from the main rod 1103 sequentially penetrates through the filling particles 1104 and the fiber main body 1101 and extends to the outside of the fiber main body 1101. The capillary fiber 1105 can strengthen the fiber main body 1101, so that the fiber main body 1101 is not likely to crack or break due to excessive deformation. At the same time, the capillary fibers 1105 penetrating through the filling particles 1104 form a fixed relationship with each other. When the fiber main body 1101 cracks or breaks, the capillary fiber 1105 is extremely unlikely to fall off from the main rod 1103, and the filling particles 1104 are not likely to leak out of the filling cavity 1102, which is not likely to affect the extraction environment in the extraction kettle main body 1. Adjacent anti-blocking curtains 11 are also connected through the mutually entangled capillary fibers 1105.

[0039] In this solution, the liquid level height of the feed liquid in the extraction kettle main body 1 is not lower than the heights of the mesh frame 7 and the defoaming net 8. The temperature and air pressure in the extraction kettle main body 1 are adjusted to the conditions required for the critical state of the extraction agent carbon dioxide. Supercritical carbon dioxide is continuously injected into the extraction kettle main body 1 through the feed pipe 4. When the supercritical carbon dioxide passes through the high-energy microbubble generating device 5, supercritical carbon dioxide bubbles will be formed and rise in the feed liquid. As the supercritical carbon dioxide bubbles rise, the hydraulic pressure they are subjected to decreases. The supercritical carbon dioxide bubbles are extremely prone to explosion by themselves. And some of the supercritical carbon dioxide bubbles that do not explode by themselves are also extremely prone to explosion under the external force extrusion and stimulation when they touch the defoaming net 8. The instantaneous energy generated by the explosion will evenly mix the supercritical carbon dioxide with the feed liquid, greatly increasing the extraction efficiency of the supercritical carbon dioxide in the feed liquid, and can significantly reduce the influence of flocculent or other impurities generated during the supercritical extraction of traditional Chinese medicine on the supercritical extraction efficiency, and is not likely to affect the purification of subsequent effective target components.

[0040] The above; only the preferred specific implementation manner of the present invention; but the protection scope of the present invention is not limited thereto; any person skilled in the art within the technical scope disclosed by the present invention; according to the technical solution of the present invention and its improved concept, making equivalent substitutions or changes; should be covered by the protection scope of the present invention.

Claims

1. A supercritical extraction device for traditional Chinese medicine based on high-energy microbubble technology, comprising an extraction kettle main body (1), wherein the extraction kettle main body (1) contains a feed liquid and an extraction liquid, an upper end opening of the extraction kettle main body (1) is fixedly connected with a kettle cover (2) matching with itself, a sealing gasket (3) is connected between the extraction kettle main body (1) and the kettle cover (2), and the sealing gasket (3) is fixedly connected with the kettle cover (2), a feed pipe (4) is fixedly connected to a lower end of the extraction kettle main body (1), and one end of the feed pipe (4) close to the extraction kettle main body (1) penetrates through the feed pipe (4) and extends into the extraction kettle main body (1), and is characterized in that: One end of the feed pipe (4) located inside the extraction kettle body (1) is fixedly connected with a high-energy microbubble generating device (5) matching itself. A pair of limit sliding grooves (6) are drilled on the side wall of the extraction kettle body (1). A mesh frame (7) matching itself is slidably connected inside the extraction kettle body (1). The mesh frame (7) includes a circular frame part and an ear block part fixedly connected to the outer side wall of the circular frame part, and the ear block part matches the limit sliding groove (6). The extraction kettle body (1) and the mesh frame (7) are connected by the limit sliding groove (6) and the ear block part to realize directional sliding connection. A clogging prevention curtain (11) is fixedly connected at the notch of the limit sliding groove (6). The clogging prevention curtain (11) includes a plurality of elastic fibers, and the plurality of elastic fibers are cross-wound with each other to form a plurality of compartments for partitioning; a defoaming net (8) is installed inside the mesh frame (7); there is an obvious difference in density between the feed liquid and the extraction liquid, and the density of the feed liquid is slightly higher than that of the extraction liquid. The overall density of the mesh frame (7) and the defoaming net (8) is similar to the density of the feed liquid; the defoaming net (8) includes a net body (801), and a needle-breaking net (802) is fixedly connected to the lower end of the net body (801). One end of the needle-breaking net (802) far from the net body (801) is a sharp end.

2. The supercritical extraction device for traditional Chinese medicine based on the high-energy microbubble technology according to claim 1, wherein: A limit sliding rod (9) is fixedly connected between the side walls of the limit sliding groove (6), and the limit sliding rod (9) penetrates through the mesh frame (7).

3. The supercritical extraction device for traditional Chinese medicine based on high-energy microbubble technology according to claim 1, characterized in that: A wear-resistant ring (10) is connected between the mesh frame (7) and the limit sliding rod (9), and the wear-resistant ring (10) is fixedly connected with the mesh frame (7).

4. The supercritical extraction device for traditional Chinese medicine based on high-energy microbubble technology according to claim 3, characterized in that: A capture barb (803) is fixedly connected to the side wall of the needle-breaking net (802), and an elastic cavity (804) is drilled in the capture barb (803).

5. The supercritical extraction device for traditional Chinese medicine based on high-energy microbubble technology according to claim 4, characterized in that: The elastic fiber includes a fiber main body (1101), and a filling cavity (1102) is drilled in the fiber main body (1101), and the filling cavity (1102) is far from the connection end of the clogging prevention curtain (11) and the side wall of the limit sliding groove (6).

6. The supercritical extraction device for traditional Chinese medicine based on high-energy microbubble technology according to claim 5, wherein: A main rod (1103) is inserted into the filling cavity (1102), and both ends of the main rod (1103) are fixedly connected with the fiber main body (1101). A plurality of filling particles (1104) are filled in the filling cavity (1102).

7. The supercritical extraction device for traditional Chinese medicine based on the high-energy microbubble technology according to claim 6, characterized in that: A plurality of capillary fibers (1105) are fixedly connected to the outer side of the main rod (1103), and one end of the capillary fiber (1105) far from the main rod (1103) sequentially penetrates through the filling particles (1104) and the fiber main body (1101) and extends to the outside of the fiber main body (1101).

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