CO2 supercritical extraction kettle device

Abstract

The utility model discloses a CO2 supercritical extraction kettle device which comprises a barrel assembly, a top gland is in threaded connection with the upper portion of the barrel assembly, the lower end of the top gland abuts against a first sealing gasket, a filtering assembly abuts against the lower portion of the first sealing gasket, and a connecting assembly is in threaded connection with the lower portion of the barrel assembly. The lower end of the cylinder assembly abuts against a second sealing gasket, and the lower portion of the second sealing gasket abuts against a bottom gland. The barrel assemblies are divided into three sections of single tanks, the three barrel assemblies are connected in series in a threaded connection manner, each section is detachable or rearranged, and materials at the bottom layer can be exchanged with materials at the upper layer after being completely extracted, so that the materials are completely extracted on the whole under the condition that the materials are not reduced, the extraction time is shortened, and the extraction efficiency is improved. The extraction rate is improved while the efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of extraction vessel technology, and in particular to a CO2 supercritical extraction vessel device. Background Technology

[0002] Supercritical CO2 extraction is a method for separating and extracting substances using the properties of carbon dioxide in a supercritical state. The separation principle of supercritical CO2 extraction involves controlling the operating pressure and temperature to allow CO2 to extract and carry away the target components from the substance under supercritical conditions. Then, the supercritical conditions are released, immediately eliminating the solubility of the target components in CO2 and releasing them, thus achieving separation. In the supercritical state, the supercritical fluid is brought into contact with the substance to be separated, selectively extracting components based on polarity, boiling point, and molecular weight. The supercritical CO2 fluid extraction process consists of a combination of extraction and separation processes.

[0003] Currently, supercritical CO2 extraction vessels are mainly divided into 10 kg and 1 kg types, but both are integrated tanks. After the material is filled, CO2 is introduced from the bottom of the extraction vessel, passes through the material, and mixes the oil in the material, which is then carried out from the top. Due to the relatively deep depth of the integrated tank, there are disadvantages such as difficulty for CO2 to penetrate the material after it is filled, low extraction efficiency, and long extraction time. Often, the bottom material is completely extracted, but a large amount of material remains in the upper layer. To address these issues, we propose a supercritical CO2 extraction vessel device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a CO2 supercritical extraction vessel device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A supercritical CO2 extraction vessel includes a cylindrical assembly. A top cover is threadedly connected to the upper part of the cylindrical assembly. The lower end of the top cover abuts against a first sealing gasket, and a filter assembly abuts below the first sealing gasket. A connecting assembly is threadedly connected to the lower part of the cylindrical assembly. A second sealing gasket abuts against the lower end of the cylindrical assembly, and a bottom cover abuts below the second sealing gasket.

[0007] Preferably, the cylinder assembly includes an extraction cylinder, with an installation screw hole fixedly connected to the upper part of the extraction cylinder and a connection screw hole fixedly connected to the lower part of the extraction cylinder. The installation screw holes facilitate the installation of the top cap and the connection assembly.

[0008] Preferably, the outer surface of the top cover is provided with an external thread, and the inner wall of the mounting screw hole is provided with an internal thread that matches the top cover. The internal thread on the inner wall of the mounting screw hole facilitates the installation of the top cover.

[0009] Preferably, the cross-sections of the first and second sealing washers are both annular, and the diameters of the first and second sealing washers are the same as the surface diameters of the top cap and the connecting screw hole. By setting the cross-sections of the first and second sealing washers to be annular, a seal can be achieved.

[0010] Preferably, the filter assembly includes a filter screen body, the filter screen body is placed on the upper inner wall of the mounting screw hole, and a mounting post is installed at the middle position of the filter screen body, so that the filter screen body can perform the filtering function.

[0011] Preferably, the connecting assembly includes a threaded socket, the connecting screw is threadedly connected to the threaded socket, and a hexagonal sleeve is fitted below the threaded socket. A plug-in screw is fixedly connected below the hexagonal sleeve. The threaded socket and the plug-in screw facilitate the connection of multiple extraction cylinders.

[0012] Preferably, the inner walls of the threaded socket, the plug-in threaded socket, and the hexagonal sleeve are all provided with through holes, and the inner wall size of the threaded socket is smaller than that of the plug-in threaded socket and the hexagonal sleeve. By making the inner wall size of the threaded socket smaller than that of the plug-in threaded socket and the hexagonal sleeve, it is convenient to place the bottom cap.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This device divides the cylindrical assembly into three individual tanks, which are connected in series by a threaded connection. Each section can be disassembled or rearranged. After the bottom material is completely extracted, it can be exchanged with the upper material. In this way, the whole material can be fully extracted without reducing the amount of material, while shortening the extraction time and improving efficiency and extraction rate. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a CO2 supercritical extraction vessel device proposed in this utility model;

[0016] Figure 2 This is a three-dimensional cross-sectional schematic diagram of a CO2 supercritical extraction vessel device proposed in this utility model;

[0017] Figure 3 This is a three-dimensional exploded view of a CO2 supercritical extraction vessel device proposed in this utility model;

[0018] Figure 4 for Figure 2Enlarged schematic diagram of the structure at point A in the diagram.

[0019] In the diagram: 1. Cylinder assembly; 11. Extraction cylinder; 12. Mounting screw; 13. Connecting screw;

[0020] 2. Top cap; 3. First sealing gasket;

[0021] 4. Filter assembly; 41. Filter screen; 42. Mounting column;

[0022] 5. Second sealing gasket; 6. Bottom cap;

[0023] 7. Connecting components; 71. Socketed threaded joint; 72. Inserted threaded joint; 73. Hexagonal sleeve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-4 A CO2 supercritical extraction vessel includes a cylindrical assembly 1. A top cover 2 is threadedly connected to the upper part of the cylindrical assembly 1. The lower end of the top cover 2 abuts against a first sealing gasket 3, and the lower part of the first sealing gasket 3 abuts against a filter assembly 4. A connecting assembly 7 is threadedly connected to the lower part of the cylindrical assembly 1. The lower end of the cylindrical assembly 1 abuts against a second sealing gasket 5, and the lower part of the second sealing gasket 5 abuts against a bottom cover 6. The first sealing gasket 3 and the second sealing gasket 5 can increase the sealing between the top cover 2 and the mounting screw 12, as well as the connecting screw 13 and the sleeve screw 71.

[0026] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the cylinder assembly 1 includes an extraction cylinder 11, with an installation screw 12 fixedly connected to the upper part of the extraction cylinder 11 and a connection screw 13 fixedly connected to the lower part of the extraction cylinder 11. The connection screw 13 facilitates the connection and installation of the connection assembly 7.

[0027] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the outer surface of the top cover 2 is provided with external threads, and the inner wall of the mounting screw hole 12 is provided with internal threads that are compatible with the top cover 2. The top cover 2 is connected to the connecting screw hole 13 by threads, which facilitates the installation of the top cover 2.

[0028] Furthermore, refer to Figure 3 and Figure 4It can be seen that the cross-section of the first sealing gasket 3 and the second sealing gasket 5 is set as an annular shape, and the diameter of the first sealing gasket 3 and the second sealing gasket 5 is the same as the surface diameter of the top cover 2 and the connecting screw 13. The sealing between the top cover 2 and the connecting screw 13 and the extraction cylinder 11 and the mounting screw 12 can be increased by the first sealing gasket 3 and the second sealing gasket 5.

[0029] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the filter assembly 4 includes a filter screen body 41, the filter screen body 41 is placed on the upper inner wall of the mounting screw 12, and a mounting post 42 is installed in the middle position of the filter screen body 41. The mounting post 42 can facilitate the removal and placement of the filter screen body 41.

[0030] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the connecting component 7 includes a socket threaded port 71, a connecting threaded port 13 is threadedly connected to the socket threaded port 71, and a hexagonal sleeve 73 is fitted below the socket threaded port 71. A plug threaded port 72 is fixedly connected below the hexagonal sleeve 73. The socket threaded port 71 and the plug threaded port 72 can facilitate the connection of multiple sets of extraction cylinders 11.

[0031] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the internal parts of the threaded socket 71, the plug-in threaded socket 72 and the hexagonal sleeve 73 are all provided with through holes, and the inner wall size of the threaded socket 71 is smaller than the inner wall size of the plug-in threaded socket 72 and the hexagonal sleeve 73. The bottom pressure cover 6 can be placed through the through hole opened inside the threaded socket 71.

[0032] Working principle: When this utility model is in use, during the assembly of the cylinder assembly 1, according to the attached... Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4 By gripping the mounting post 42, the filter screen body 41 can be placed above the mounting screw port 12. At this time, the first sealing gasket 3 is placed on the surface of the filter screen body 41, and the top cover 2 is threaded into the mounting screw port 12, so that the bottom of the top cover 2 abuts against the surface of the first sealing gasket 3. At the same time, the second sealing gasket 5 and the bottom cover 6 are sequentially placed into the connecting screw port 71, and the extraction cylinder 11 drives the connecting screw port 13 to be threaded into the connecting screw port 71, so that the lower end of the connecting screw port 13 abuts against the second sealing gasket 5. Meanwhile, the connecting screw port 72 can be threaded to another set of extraction cylinders 11.

[0033] The above is the complete working principle of this utility model.

[0034] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0035] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0036] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A CO2 supercritical extraction vessel apparatus, comprising a cylindrical assembly (1), characterized in that, The top of the cylindrical assembly (1) is threadedly connected to a top cap (2), the lower end of the top cap (2) abuts against a first sealing gasket (3), and the lower part of the first sealing gasket (3) abuts against a filter assembly (4). The bottom of the cylindrical assembly (1) is threadedly connected to a connecting assembly (7), the lower end of the cylindrical assembly (1) abuts against a second sealing gasket (5), and the lower part of the second sealing gasket (5) abuts against a bottom cap (6).

2. The CO2 supercritical extraction vessel apparatus according to claim 1, characterized in that, The cylinder assembly (1) includes an extraction cylinder (11), with an installation screw (12) fixedly connected to the upper part of the extraction cylinder (11) and a connection screw (13) fixedly connected to the lower part of the extraction cylinder (11).

3. The CO2 supercritical extraction vessel apparatus according to claim 2, characterized in that, The outer surface of the top cover (2) is provided with an external thread, and the inner wall of the mounting screw hole (12) is provided with an internal thread that is compatible with the top cover (2).

4. The CO2 supercritical extraction vessel apparatus according to claim 1, characterized in that, The first sealing gasket (3) and the second sealing gasket (5) are both annular in cross-section, and the diameters of the first sealing gasket (3) and the second sealing gasket (5) are the same as the surface diameters of the top cap (2) and the connecting screw (13).

5. The CO2 supercritical extraction vessel apparatus according to claim 2, characterized in that, The filter assembly (4) includes a filter screen body (41), the filter screen body (41) is placed on the upper inner wall of the mounting screw (12), and a mounting post (42) is installed at the middle position of the filter screen body (41).

6. The CO2 supercritical extraction vessel apparatus according to claim 2, characterized in that, The connecting component (7) includes a socket (71), the connecting screw (13) is threadedly connected to the socket (71), and a hexagonal sleeve (73) is fitted below the socket (71), and a plug-in screw (72) is fixedly connected below the hexagonal sleeve (73).

7. The CO2 supercritical extraction vessel apparatus according to claim 6, characterized in that, The internal parts of the threaded socket (71), the plug-in threaded socket (72) and the hexagonal sleeve (73) are all provided with through holes, and the inner wall size of the threaded socket (71) is smaller than the inner wall size of the plug-in threaded socket (72) and the hexagonal sleeve (73).

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