Multi-cavity integrated traditional Chinese medicine supercritical extraction device
By designing a multi-chamber integrated supercritical extraction device for traditional Chinese medicine, and adopting a parallel extraction chamber and a slender extraction cylinder structure, the problems of insufficient extraction of traditional Chinese medicine and the inability to process multiple traditional Chinese medicines at the same time were solved, thus achieving efficient and rapid operation of traditional Chinese medicine extraction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN VOCATIONAL COLLEGE OF SCI & TECH
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-21
AI Technical Summary
In existing Chinese medicine extraction devices, Chinese medicine accumulates at the bottom of the extraction tank, resulting in insufficient contact between the supercritical fluid and the Chinese medicine, low extraction degree, inability to process multiple Chinese medicines simultaneously, and slow operation.
A multi-chamber integrated supercritical extraction device for traditional Chinese medicine is designed, comprising side-by-side extraction chambers and extraction elements. It adopts a slender extraction cylinder structure and achieves simultaneous extraction of various traditional Chinese medicines through multiple feed and discharge pipes. Supercritical extractant is used for soaking and extraction.
It improves the degree and efficiency of Chinese medicine extraction, enables the simultaneous extraction of multiple Chinese medicines, makes the operation more convenient and faster, and allows for more thorough and rapid contact between the extractant and the Chinese medicine.
Smart Images

Figure CN224141517U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of traditional Chinese medicine extraction technology, and in particular relates to a multi-cavity integrated supercritical extraction device for traditional Chinese medicine. Background Technology
[0002] Supercritical fluids are substances that exist in a state between gas and liquid, neither gaseous nor liquid. They can only exist when their temperature and pressure exceed their critical point. Supercritical fluids have a high density, similar to liquids, while their viscosity is closer to that of gases, making them ideal extraction agents. However, in current methods of extracting traditional Chinese medicine, the herbs tend to accumulate at the bottom of the extraction tank, preventing the supercritical fluid from fully contacting the herbs, resulting in low extraction yield and prolonged processing time. A search revealed that patent application number 202222346136.0 discloses a mobile supercritical extraction device for traditional Chinese medicine, comprising a tank body, a tank cover engaged with the upper end of the tank body, a feed pipe fixedly connected to the upper end face of the tank cover, a discharge pipe fixedly connected to the lower end of the side wall of the tank body, a column inside the tank body, multiple positioning sleeves fixedly connected to the side wall of the column, and a material tray fixedly connected to the side wall of each of the multiple positioning sleeves, the material tray being composed of a frame and a hollow plate, and a sealing cover rotatably connected to the positioning sleeve to seal the material tray, the sealing cover being composed of a frame and a hollow plate.
[0003] However, in actual use, the applicant found that when performing supercritical extraction of Chinese medicine, it can only perform supercritical extraction on one type of Chinese medicine at a time. If multiple Chinese medicines need to be extracted, the extraction of one type of Chinese medicine can only be performed on another type of Chinese medicine after the extraction of the first type of Chinese medicine is completed, which is not convenient and fast. In view of this, we propose a multi-cavity integrated supercritical extraction device for Chinese medicine. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0005] This utility model relates to a multi-cavity integrated supercritical extraction device for traditional Chinese medicine, comprising a traditional Chinese medicine extraction box, an extraction chamber at the top of the extraction box, and several extraction chambers at equal intervals arranged side by side at the top of the extraction box. An extraction element is inserted into each extraction chamber, and the extraction element includes a sealing cap that is threaded into the extraction chamber. A connecting column is fixedly connected to the bottom of the sealing cap, and extraction cylinders are arranged in a ring array around the connecting column. A feed pipe is fixedly connected to the traditional Chinese medicine extraction box behind each extraction chamber, and a discharge pipe is fixedly connected to the traditional Chinese medicine extraction box below each extraction chamber. A valve is fixedly fitted onto the discharge pipe.
[0006] Preferably, a handle is fixedly provided on the top of the sealing cap, and an external thread is provided on the outer wall of the sealing cap, which is threadedly engaged with an internal thread provided on the inner side wall of the extraction chamber.
[0007] Preferably, the outer wall of the lower end of the connecting column is provided with connecting supports in a ring array, and the extraction cylinder is fixed on the connecting supports.
[0008] Preferably, the top of the extraction cylinder is threaded with a cylinder cap, and the lower part of the extraction cylinder is provided with a filter screen.
[0009] Preferably, the front end of each feed pipe is connected to the extraction chamber on its front side, and the bottom of each discharge pipe is connected to the extraction chamber above it.
[0010] Preferably, the two sides of the herbal medicine extraction box are symmetrically and fixedly connected with support legs.
[0011] This utility model has the following beneficial effects:
[0012] This utility model discloses a multi-cavity integrated supercritical extraction device for traditional Chinese medicine. Through multiple extraction chambers and extraction elements arranged side by side, it can simultaneously extract a variety of traditional Chinese medicines, making it more convenient, faster, and more effective. By setting the extraction cylinder to a slender cylindrical structure, the supercritical extractant can come into more complete and faster contact with the traditional Chinese medicine placed inside the extraction cylinder, thereby improving the degree and efficiency of extraction. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a top view schematic diagram of a multi-cavity integrated supercritical extraction device for traditional Chinese medicine according to this utility model;
[0015] Figure 2 This is a top view of the multi-cavity integrated supercritical extraction device for traditional Chinese medicine after the extraction element has been removed.
[0016] Figure 3 This is a bottom view of the multi-cavity integrated supercritical extraction device for traditional Chinese medicine according to this utility model;
[0017] Figure 4 This is a schematic diagram of the extraction element in a multi-cavity integrated supercritical extraction device for traditional Chinese medicine according to this utility model.
[0018] The attached diagram lists the components represented by each number as follows:
[0019] 1. Herbal Extraction Box; 11. Extraction Chamber; 12. Internal Threaded Part; 2. Support Leg; 3. Feed Pipe; 4. Extraction Component; 41. Sealing Cap; 411. Handle; 412. External Threaded Part; 42. Connecting Column; 421. Connecting Support; 43. Extraction Cylinder; 431. Cylinder Cover; 432. Filter Screen; 5. Discharge Pipe; 6. Valve. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-4 As shown, this utility model provides a technical solution:
[0022] A multi-chamber integrated supercritical extraction device for traditional Chinese medicine includes a traditional Chinese medicine extraction chamber 1. The top of the extraction chamber 1 has an extraction cavity 11. Several extraction cavities 11 are arranged side-by-side at equal intervals on the top of the extraction chamber 11. Extraction elements 4 are inserted into each extraction cavity 11. Through the multiple extraction cavities 11 and extraction elements 4 arranged side-by-side, multiple traditional Chinese medicines can be extracted simultaneously, making it more convenient, faster, and more effective. Each extraction cavity 11 is fixedly connected to a feed pipe 3 on the rear side of the extraction chamber 1 for introducing supercritical extractant into the extraction cavity 11 to perform supercritical extraction of the traditional Chinese medicine in the extraction elements 4. The front end of each feed pipe 3 is connected to the extraction cavity 11 on its front side. Each extraction cavity 11 is also fixedly connected to a feed pipe 3 on the lower side of the extraction chamber 1. Each discharge pipe 5 is connected to the bottom of the extraction chamber 11 above it, and is used to discharge the supercritical extractant from the extraction chamber 11. A valve 6 is fixedly fitted onto the discharge pipe 5. Support legs 2 are symmetrically fixedly connected to both sides of the Chinese medicine extraction box 1. When supercritically extracting Chinese medicine, multiple Chinese medicines to be extracted can be placed in multiple extraction elements 4, and extraction elements 4 containing different Chinese medicines can be inserted into multiple extraction chambers 11. Then, a supercritical extractant that is compatible with the extraction of Chinese medicines inside is introduced into the extraction chamber 11 through the feed pipe 3. The Chinese medicines in the extraction elements 4 are soaked and extracted by the supercritical extractant. After the extraction is completed, the supercritical extractant can be discharged from the extraction chamber 11 through the discharge pipe 5 by opening the valve 6.
[0023] The extraction component 4 includes a sealing cap 41, which is threaded into the extraction chamber 11. A handle 411 is fixedly mounted on the top of the sealing cap 41. An external thread 412 is formed on the outer wall of the sealing cap 41, which is threaded into an internal thread 12 formed on the inner wall of the extraction chamber 11. A connecting post 42 is fixedly connected to the bottom of the sealing cap 41. Extraction cylinders 43 are arranged in a ring array around the connecting post 42. The extraction cylinders 43 are long and thin cylindrical structures. By making the extraction cylinders 43 long and thin cylindrical structures, the supercritical extractant can come into more complete and faster contact with the Chinese medicine placed inside the extraction cylinders 43, thereby improving the degree and efficiency of extraction. A connecting support 421 is arranged in a ring array on the outer wall of the lower end of the connecting post 42, and the extraction cylinders 43 are fixed on the connecting support 421. The top of the extraction cylinder 43 is threaded with a cylinder cap 431, and the lower part of the extraction cylinder 43 is provided with a filter screen 432. By providing a filter screen 432 at the lower part of the extraction cylinder 43, the Chinese medicine can be filtered to prevent it from falling out of the extraction cylinder 43, which facilitates the subsequent cleaning of the Chinese medicine. When the Chinese medicine is placed in the extraction component 4, the cylinder caps 431 at the upper end of the multiple extraction cylinders 43 on the extraction component 4 can be unscrewed, and the Chinese medicine can be put into the extraction cylinder 43. Then, the cylinder caps 431 are screwed onto the upper end of the extraction cylinder 43. Next, the handle 411 is held, the extraction component 4 is inserted into the extraction chamber 11, and the sealing cap 41 is screwed onto the extraction chamber 11. After the supercritical extractant enters the interior of the extraction chamber 11, it can pass through the filter screen 432 into the interior of the extraction cylinder 43 and fully contact the Chinese medicine in the extraction cylinder 43 to extract the Chinese medicine.
[0024] Working principle: In supercritical extraction of traditional Chinese medicine, multiple herbs to be extracted can be placed in multiple extraction elements 4. When placing the herbs in the extraction elements 4, the caps 431 at the top of the multiple extraction cylinders 43 on the extraction element 4 can be unscrewed, and the herbs can be added into the extraction cylinders 43. Then, the caps 431 are screwed onto the top of the extraction cylinders 43. Next, by holding the handle 411, the extraction element 4 is inserted into the extraction chamber 11, and the sealing cap 41 is screwed onto the extraction chamber 11. Through the above method, the extraction elements 4 containing different herbs are extracted. The extractors are inserted into multiple extraction chambers 11 respectively. Then, a supercritical extractant compatible with the Chinese medicine extraction inside the extraction chamber 11 is introduced into the extraction chamber 11 through the feed pipe 3. The Chinese medicine in the extraction element 4 is soaked and extracted by the supercritical extractant. After entering the extraction chamber 11, the supercritical extractant can pass through the filter screen 432 into the extraction cylinder 43 and fully contact the Chinese medicine in the extraction cylinder 43 to extract the Chinese medicine. After the extraction is completed, the supercritical extractant can be discharged from the extraction chamber 11 through the discharge pipe 5 by opening the valve 6.
[0025] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0026] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications to the technical solutions described in the foregoing embodiments or equivalent substitutions of some of the technical features shall fall within the protection scope of the present utility model.
Claims
1. A multi-cavity integrated traditional Chinese medicine supercritical extraction device, comprising a traditional Chinese medicine extraction box (1), characterized in that: The top of the herbal extraction box (1) is provided with an extraction chamber (11). Several extraction chambers (11) are arranged side by side at equal intervals on the top of the extraction chamber (11). An extraction component (4) is inserted in the extraction chamber (11). The extraction component (4) includes a sealing cover (41). The sealing cover (41) is threaded into the extraction chamber (11). A connecting column (42) is fixedly connected to the bottom of the sealing cover (41). An extraction cylinder (43) is arranged in a ring array around the connecting column (42). A feed pipe (3) is fixedly connected to the herbal extraction box (1) behind each extraction chamber (11). A discharge pipe (5) is fixedly connected to the herbal extraction box (1) below each extraction chamber (11). A valve (6) is sleeved and fixed on the discharge pipe (5).
2. The multi-cavity integrated traditional Chinese medicine supercritical extraction device according to claim 1, characterized in that, A handle (411) is fixedly provided on the top of the sealing cover (41), and an external thread (412) is provided on the outer wall of the sealing cover (41), which is threadedly engaged with the internal thread (12) provided on the inner side wall of the extraction chamber (11).
3. The multi-cavity integrated traditional Chinese medicine supercritical extraction device according to claim 1, characterized in that, Connecting supports (421) are arranged in a ring array on the outer wall of the lower end of the connecting column (42), and the extraction cylinder (43) is fixed on the connecting supports (421).
4. The multi-cavity integrated traditional Chinese medicine supercritical extraction device according to claim 1, characterized in that, The top of the extraction cylinder (43) is threaded with a cylinder cap (431), and a filter screen (432) is provided at the bottom of the extraction cylinder (43).
5. The multi-cavity integrated traditional Chinese medicine supercritical extraction device according to claim 1, characterized in that, The front end of each feed pipe (3) is connected to the extraction chamber (11) on its front side, and the bottom of each discharge pipe (5) is connected to the extraction chamber (11) above it.
6. The multi-cavity integrated traditional Chinese medicine supercritical extraction device according to claim 1, characterized in that, The Chinese medicine extraction box (1) is symmetrically and fixedly connected to two sides of support legs (2).
Citation Information
Patent Citations
Traditional Chinese medicine supercritical extraction device convenient to move
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