Positive pressure extraction device

Abstract

The utility model belongs to the technical field of extraction equipment, and particularly relates to a positive pressure extraction device. Comprising a positive pressure cavity, a filter, a gas shunting assembly and a silica gel pressing plate, a mounting hole is formed in the positive pressure cavity, the filter is arranged in the mounting hole, the gas shunting assembly is connected with the upper end of the positive pressure cavity, and the silica gel pressing plate is connected with the lower end of the positive pressure cavity. According to the positive pressure extraction device, the silica gel pressing plate can act on the filter plate, gas is shunted by the gas shunting assembly and then acts on the plurality of extraction column tubes in the filter plate, so that samples in the plurality of extraction column tubes are subjected to positive pressure extraction, and the positive pressure extraction efficiency is improved. And secondly, the mounting hole is formed in the positive pressure cavity, the filter is arranged in the mounting hole, and the gas enters the filter to be filtered after passing through the gas shunting assembly, so that impurities and other pollutants in the gas can be removed, pollution is avoided, and the purity of a sample subjected to positive pressure extraction is favorably improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of extraction equipment, and particularly relates to a positive pressure extraction device. Background Art

[0002] Extraction is often used in chemical experiments. Its operation does not cause changes in the chemical composition of the extracted substance. It is one of the methods used to purify and refine compounds in organic chemistry laboratories. The desired compound sample is extracted from a solid or liquid using a positive pressure extraction device.

[0003] However, after the existing positive pressure extraction device extracts the sample, there are often many impurities, which affect the quality of the extracted sample. Therefore, it is necessary to design a positive pressure extraction device to solve the above problem. Utility Model Content

[0004] In view of the above problems, the present invention provides a positive pressure extraction device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a positive pressure extraction device, comprising a positive pressure chamber, a filter, a gas diversion assembly and a silicone pressure plate, wherein a mounting hole is opened in the positive pressure chamber, the filter is arranged in the mounting hole, the gas diversion assembly is connected to the upper end of the positive pressure chamber, and the silicone pressure plate is connected to the lower end of the positive pressure chamber.

[0006] Furthermore, a plurality of the mounting holes and the filters are provided, the plurality of mounting holes are evenly distributed in the positive pressure cavity, and the plurality of filters are installed in the plurality of mounting holes in a one-to-one correspondence.

[0007] Furthermore, the gas diversion assembly includes a mounting plate, a trachea elbow, a first diversion baffle, a second diversion baffle, and a third diversion baffle. The first diversion baffle, the second diversion baffle, and the third diversion baffle are sequentially arranged at the lower end of the mounting plate, and the lower end of the third diversion baffle is connected to the positive pressure cavity.

[0008] The tracheal elbow is installed at the upper end of the mounting plate. An air inlet is provided on the tracheal elbow. The air inlet, the first diversion baffle, the second diversion baffle, the third diversion baffle and the positive pressure cavity are connected in sequence.

[0009] Furthermore, a first step groove is provided on the lower end surface of the first diverter baffle, two second step grooves are provided on the upper end surface of the second diverter baffle, and six third step grooves are provided on the upper end surface of the third diverter baffle. The first step groove is connected to two of the second step grooves, and one of the second step grooves is connected to three of the third step grooves.

[0010] Furthermore, the positive pressure extraction device also includes an O-ring, a sealing groove is provided on the interface between the positive pressure cavity and the mounting plate, and the O-ring is arranged in the sealing groove.

[0011] Furthermore, the positive pressure cavity and the mounting plate are connected using hexagon socket head screws.

[0012] Furthermore, the silicone pressure plate and the positive pressure cavity are adhered with a special silicone sealant.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. The silica gel pressure plate can be applied to the filter plate, and the gas diversion component can be used to divert the gas and then act on multiple extraction columns in the filter plate to perform positive pressure extraction on the samples in the multiple extraction columns, thereby accelerating the efficiency of positive pressure extraction.

[0015] 2. A mounting hole is opened in the positive pressure chamber, and a filter is set in the mounting hole. The gas passes through the gas diversion component and enters the filter for filtration, which can remove impurities and other pollutants in the gas, avoid contamination, and help improve the purity of the sample extracted by positive pressure.

[0016] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic structural diagram of a positive pressure extraction device according to an embodiment of the present invention is shown;

[0019] Figure 2 A schematic diagram of the exploded structure of the positive pressure extraction device according to an embodiment of the present invention is shown;

[0020] Figure 3 A schematic diagram of the exploded structure of the gas diversion assembly according to an embodiment of the present invention is shown;

[0021] Figure 4 Shows a schematic structural diagram of the mounting plate of an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of the exploded structure of the first diversion baffle in an embodiment of the present utility model is shown.

[0023] Figure markings: 1. Positive pressure chamber; 11. Mounting hole; 12. Sealing groove; 2. Filter; 3. Gas diversion assembly; 31. Mounting plate; 32. Trachea elbow; 33. First diversion baffle; 331. First step groove; 34. Second diversion baffle; 341. Second step groove; 35. Third diversion baffle; 351. Third step groove; 4. Silicone pressure plate; 5. O-ring. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0025] like Figure 1 and Figure 2 As shown, a positive pressure extraction device of an embodiment of the present invention includes a positive pressure chamber 1, a filter 2, a gas diversion component 3 and a silicone pressure plate 4. A mounting hole 11 is opened in the positive pressure chamber 1, and the filter 2 is arranged in the mounting hole 11. The gas diversion component 3 is connected to the upper end of the positive pressure chamber 1, and the silicone pressure plate 4 is connected to the lower end of the positive pressure chamber 1.

[0026] Specifically, it also includes a deep-well plate and a filter plate. The filter plate is arranged at the upper end of the deep-well plate. A plurality of collection columns are arranged in the deep-well plate. A plurality of extraction columns are arranged in the filter plate.

[0027] In this embodiment, when a positive pressure extraction device is used to perform positive pressure extraction on a sample, the silica gel pressure plate 4 can be applied to the filter plate, and after the gas is diverted by the gas diversion component 3, multiple airflows are respectively applied to multiple extraction column tubes in the filter plate to perform positive pressure extraction on the samples in the multiple extraction column tubes, thereby accelerating the efficiency of positive pressure extraction. Secondly, a mounting hole 11 is opened in the positive pressure cavity 1, and a filter 2 is provided in the mounting hole 11. After passing through the gas diversion component 3, the gas enters the filter 2 for filtration, which can remove impurities and other pollutants in the gas, avoid pollution, and help to improve the purity of the sample extracted by positive pressure.

[0028] Optionally, a plurality of the mounting holes 11 and the filters 2 are provided, the plurality of mounting holes 11 are evenly distributed in the positive pressure cavity 1 , and the plurality of filters 2 are installed in the plurality of mounting holes 11 in a one-to-one correspondence.

[0029] In this embodiment, by providing multiple mounting holes 11, each of which corresponds to a plurality of extraction columns, the gas passing through the gas splitter assembly 3 flows through the multiple mounting holes 11, forming multiple airflow streams that enter the corresponding extraction columns. This facilitates evenly distributing the gas throughout the multiple extraction columns, enhancing the positive pressure extraction effect. Furthermore, a filter 2 is provided within each mounting hole 11, filtering each airflow stream and removing impurities and other contaminants from each airflow stream.

[0030] Alternatively, as Figure 3 As shown, the gas diversion assembly 3 includes a mounting plate 31, a tracheal elbow 32, a first diversion baffle 33, a second diversion baffle 34 and a third diversion baffle 35. The lower end of the mounting plate 31 is sequentially provided with the first diversion baffle 33, the second diversion baffle 34 and the third diversion baffle 35. The lower end of the third diversion baffle 35 is connected to the positive pressure chamber 1;

[0031] The tracheal elbow 32 is installed at the upper end of the mounting plate 31 , and an air inlet is provided on the tracheal elbow 32 . The air inlet, the first diverter baffle 33 , the second diverter baffle 34 , the third diverter baffle 35 and the positive pressure cavity 1 are connected in sequence.

[0032] In this embodiment, gas is introduced through the tracheal elbow 32, and the gas passes through the first diversion baffle 33, the second diversion baffle 34, and the third diversion baffle 35 in sequence, finally allowing the gas to evenly enter the positive pressure chamber 1. Therefore, by providing the first diversion baffle 33, the second diversion baffle 34, and the third diversion baffle 35, multi-level diversion can be achieved, making the gas outlet more uniform and the gas flow rate more stable, which is conducive to continuously and controllably blowing the gas onto the surface of the sample, facilitating sample extraction.

[0033] Alternatively, as Figure 3 and Figure 4 As shown, the lower end surface of the first diverter baffle 33 is provided with a first step groove 331, the upper end surface of the second diverter baffle 34 is provided with two second step grooves 341, and the upper end surface of the third diverter baffle 35 is provided with six third step grooves 351. The first step groove 331 is connected to two of the second step grooves 341, and one second step groove 341 is connected to three of the third step grooves 351.

[0034] In this embodiment, the gas enters the first step groove 331 and can flow into the two second step grooves 341 respectively, and then flow into the six third step grooves 351 respectively from the two second step grooves 341, so that the first diversion baffle 33, the second diversion baffle 34 and the third diversion baffle 35 can perform multi-level diversion of the gas.

[0035] Alternatively, as Figure 2 As shown, the positive pressure extraction device further includes an O-ring 5 , a sealing groove 12 is provided on the interface between the positive pressure chamber 1 and the mounting plate 31 , and the O-ring 5 is disposed in the sealing groove 12 .

[0036] In this embodiment, by opening a sealing groove 12 on the positive pressure cavity 1 and setting an O-ring 5 in the sealing groove 12, when the positive pressure cavity 1 is docked with the mounting plate 31, the O-ring 5 can be used to seal the connection between the positive pressure cavity 1 and the mounting plate 31.

[0037] Optionally, the positive pressure chamber 1 and the mounting plate 31 are connected using hexagon socket head screws.

[0038] In this embodiment, the positive pressure chamber 1 and the mounting plate 31 are assembled and connected using hexagon socket head screws, which facilitates assembly and disassembly of the positive pressure chamber 1 and the mounting plate 31.

[0039] Optionally, the silicone pressure plate 4 and the positive pressure cavity 1 are adhered with a special silicone sealant.

[0040] In this embodiment, special silicone sealant is used to facilitate the connection between the silicone pressure plate 4 and the lower end of the positive pressure cavity 1.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the aforementioned embodiments, or that some of the technical features therein may be replaced with equivalents; and such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention. It should be noted that the number of extraction devices in this embodiment is 96, which is only one embodiment. The number of extraction devices can be set according to actual requirements, such as 24, 32, 48, 96, 192, etc., and any different number settings should be included within the scope of protection of this application.

Claims

1. A positive pressure extraction device, characterized in that: The invention comprises a positive pressure cavity (1), a filter (2), a gas diversion assembly (3) and a silicone pressure plate (4); a mounting hole (11) is provided in the positive pressure cavity (1); the filter (2) is provided in the mounting hole (11); the gas diversion assembly (3) is connected to the upper end of the positive pressure cavity (1); and the silicone pressure plate (4) is connected to the lower end of the positive pressure cavity (1).

2. The positive pressure extraction device according to claim 1, characterized in that A plurality of the mounting holes (11) and the filters (2) are provided, the plurality of mounting holes (11) are evenly distributed in the positive pressure cavity (1), and the plurality of filters (2) are mounted in a one-to-one correspondence in the plurality of mounting holes (11).

3. The positive pressure extraction device according to claim 1, characterized in that: The gas diversion assembly (3) comprises a mounting plate (31), a tracheal elbow (32), a first diversion baffle (33), a second diversion baffle (34), and a third diversion baffle (35); the first diversion baffle (33), the second diversion baffle (34), and the third diversion baffle (35) are sequentially arranged at the lower end of the mounting plate (31); the lower end of the third diversion baffle (35) is connected to the positive pressure chamber (1); The tracheal elbow (32) is installed at the upper end of the mounting plate (31), and an air inlet is provided on the tracheal elbow (32). The air inlet, the first diversion baffle (33), the second diversion baffle (34), the third diversion baffle (35) and the positive pressure cavity (1) are sequentially connected.

4. The positive pressure extraction device according to claim 3, characterized in that: The lower end surface of the first diverter baffle (33) is provided with a first step groove (331), the upper end surface of the second diverter baffle (34) is provided with two second step grooves (341), and the upper end surface of the third diverter baffle (35) is provided with six third step grooves (351), the first step groove (331) is connected to two of the second step grooves (341), and one of the second step grooves (341) is connected to three of the third step grooves (351).

5. The positive pressure extraction device according to claim 3, characterized in that: It also includes an O-type sealing ring (5). A sealing groove (12) is provided on the interface between the positive pressure cavity (1) and the mounting plate (31), and the O-type sealing ring (5) is arranged in the sealing groove (12).

6. The positive pressure extraction device according to claim 3, characterized in that: The positive pressure chamber (1) and the mounting plate (31) are connected using hexagon socket head screws.

7. The positive pressure extraction device according to claim 1, characterized in that: The silicone pressure plate (4) and the positive pressure cavity (1) are bonded together using a special silicone sealant.

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