Combined chromatographic column for chemical analysis

Abstract

The combined type chromatographic column for chemical analysis comprises a chromatographic column main body, the chromatographic column main body is a cylinder with a through interior, the top of the chromatographic column main body is provided with a top plate, the bottom of the chromatographic column main body is provided with a bottom plate, the bottom of the bottom plate is connected with a top plate of a liquid outlet device, and the bottom of the top plate of the liquid outlet device is provided with a liquid outlet device. A liquid outlet pipe is arranged at the bottom of the liquid outlet device, an insertion plate is inserted into the top of the interior of the chromatographic column main body, a cylinder is arranged at the top of the insertion plate, the bottom of the cylinder is in contact with the top of the top plate, a cylinder inner cavity is formed in the cylinder and is in a circular truncated cone shape with the top diameter larger than the bottom diameter, and a flow guide plate is arranged in the cylinder inner cavity; the surface of the guide plate is in contact with the inner wall of the inner cavity of the barrel; a filter plate is arranged at the bottom of the inner cavity of the barrel; in the using process, when the barrel body or the liquid outlet device is damaged, a new barrel body or liquid outlet device can be replaced to prevent waste, and certain practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of chromatography columns, in particular to a combined chromatography column for chemical analysis. Background Art

[0002] Analytical chemistry is a science about the analytical methods and theories of chemical information such as the composition, content, structure and morphology of substances. It is an important branch of chemistry. It is to identify the components contained in the substance and what the substance is composed of, determine the relative content of various components, and study the molecular structure or crystal of the substance. In the process of chemical analysis, chromatography columns will be used. Chromatographic columns can be used to purify samples in the chemical production process and analyze and detect the different components contained in the samples, and separate the components according to the differences in the physical properties of the components in the sample.

[0003] However, the chromatography columns in the prior art have certain limitations during use. The chromatography columns in the prior art are generally integrated, wherein the top and bottom of the chromatography column are generally subjected to the impact of the sample and are easily damaged. The chromatography columns in the prior art are integrated, and damage to the top and bottom of the chromatography column will cause the entire chromatography column to be scrapped, thereby causing certain waste. Utility Model Content

[0004] The purpose of the utility model is to provide a combined chromatography column for chemical analysis to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A combined chromatography column for chemical analysis comprises a chromatography column body, wherein the chromatography column body is in the shape of a cylinder with a through interior, a top plate is arranged on the top of the chromatography column body, a bottom plate is arranged on the bottom of the chromatography column body, a top plate of a liquid outlet device is connected to the bottom of the bottom plate, a liquid outlet device is arranged on the bottom of the top plate of the liquid outlet device, a liquid outlet pipe is arranged on the bottom of the liquid outlet device, an insert plate is inserted into the top of the interior of the chromatography column body, a barrel is arranged on the top of the insert plate, the bottom of the barrel is in contact with the top of the top plate, a barrel inner cavity is opened inside the barrel, the barrel inner cavity is in the shape of a truncated cone with a top diameter larger than a bottom diameter, a guide plate is arranged inside the barrel inner cavity, a surface of the guide plate is in contact with an inner wall of the barrel inner cavity, and a filter plate is arranged at the bottom of the barrel inner cavity.

[0007] Preferably, a sieve plate is fixedly connected to the inner bottom of the liquid outlet device.

[0008] Preferably, the bottom plate is provided with a plurality of fixing openings, and the top plate of the liquid outlet device is provided with limiting openings corresponding to the fixing openings, and the limiting openings are connected to the fixing openings by fixing bolts.

[0009] Preferably, a card slot is provided at the top of the top plate, a card block is card-engaged in the card slot, and the top of the card block is connected to the bottom of the cylinder.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model is a combined chromatography column for chemical analysis. During use, when the barrel or the liquid outlet device is damaged, a new barrel or liquid outlet device can be replaced to prevent waste, which has certain practicality.

[0012] 2. The utility model is a combined chromatography column for chemical analysis. When in use, the eluent is poured into the top of the barrel. After passing through the guide plate and the filter plate in the inner cavity of the barrel, the eluent slowly and evenly enters the main body of the chromatography column, and then the eluent drips evenly onto the sieve plate to prevent the service life of the sieve plate from being affected. There is no need to frequently replace the liquid outlet device, which embodies the concept of environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the chromatography column of the utility model;

[0015] Figure 3 It is a schematic diagram of the cylinder structure of the utility model;

[0016] Figure 4 It is an overall cross-sectional view of the utility model.

[0017] In the figure: 1. chromatography column body; 2. cylinder; 3. liquid outlet pipe; 4. top plate; 5. bottom plate; 6. top plate of liquid outlet device; 7. filter plate; 8. cylinder inner cavity; 9. insert plate; 10. liquid outlet device; 11. sieve plate; 12. fixing bolt; 13. slot; 14. block; 15. guide plate; 16. fixing port. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 on the present invention.

[0020] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-4 , the utility model provides a technical solution:

[0022] A combined chromatography column for chemical analysis comprises a chromatography column body 1, which is a cylindrical body with a through interior. A top plate 4 is arranged on the top of the chromatography column body 1, a bottom plate 5 is arranged on the bottom of the chromatography column body 1, a top plate 6 of a liquid outlet device is connected to the bottom of the bottom plate 5, a liquid outlet device 10 is arranged on the bottom of the top plate 6 of the liquid outlet device, a liquid outlet pipe 3 is arranged on the bottom of the liquid outlet device 10, an insert plate 9 is inserted into the top of the interior of the chromatography column body 1, a barrel 2 is arranged on the top of the insert plate 9, the bottom of the barrel 2 is in contact with the top of the top plate 6, a barrel inner cavity 8 is opened inside the barrel 2, the barrel inner cavity 8 is a truncated cone with a top diameter larger than a bottom diameter, a guide plate 15 is arranged inside the barrel inner cavity 8, a surface of the guide plate 15 is in contact with an inner wall of the barrel inner cavity 8, and a filter plate 7 is arranged on the bottom of the barrel inner cavity 8.

[0023] Furthermore, a sieve plate 11 is fixedly connected to the inner bottom of the liquid outlet device 10 .

[0024] Furthermore, the bottom plate 5 is provided with a plurality of fixing openings 16 , and the top plate 6 of the liquid outlet device is provided with limiting openings corresponding to the fixing openings 16 , and the limiting openings and the fixing openings 16 are connected by fixing bolts 12 .

[0025] Furthermore, a card slot 13 is provided at the top of the top plate 4 , and a card block 14 is snap-fittedly connected to the card slot 13 , and the top of the card block 14 is connected to the bottom of the cylinder 2 .

[0026] Working principle: In the utility model, the top plate 4 of the chromatography column body 1 is connected to the cylinder 2 by a snap-fitting manner. When the cylinder 2 is damaged, it can be directly picked up and replaced with a new cylinder 2. The bottom base plate 5 of the chromatography column body 1 and the top plate 6 of the liquid outlet device are connected by fixing bolts 12. When the liquid outlet device 10 is damaged, the fixing bolts 12 can be directly removed and a new liquid outlet device 10 can be placed on the bottom plate 5. When fixing the liquid outlet device 10, all the limit ports are aligned with one of the fixing ports 16, and then fixed by the fixing bolts 12.

[0027] In addition, when using it again, it is necessary to pour the eluent on the top of the cylinder 2. The eluent will slowly and evenly enter the chromatography column body 1 after passing through the guide plate 15 and the filter plate 7 inside the inner cavity 8 of the cylinder, and then the eluent will drip evenly onto the sieve plate 11 to prevent affecting the service life of the sieve plate 11. There is no need to frequently replace the liquid outlet device 10, which embodies the concept of environmental protection.

[0028] The eluent reaches the sieve plate 10 for chromatography and flows out through the valve on the liquid outlet pipe 3 (not shown in the figure). The valve on the liquid outlet pipe 3 is prior art and will not be described in detail here.

[0029] Finally, it should be noted that the utility model designs the inner cavity 8 of the cylinder into a truncated cone with a top diameter larger than the bottom diameter, mainly to allow the eluent to better gather at the filter plate 7 at the bottom of the inner cavity 8 of the cylinder, which is conducive to allowing the eluent to drip evenly onto the sieve plate 11.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined chromatography column for chemical analysis, comprising a chromatography column body (1), characterized in that: The chromatography column body (1) is cylindrical with a through interior. A top plate (4) is arranged at the top of the chromatography column body (1). A bottom plate (5) is arranged at the bottom of the chromatography column body (1). The bottom of the bottom plate (5) is connected to a liquid outlet device top plate (6). A liquid outlet device (10) is arranged at the bottom of the liquid outlet device top plate (6). A liquid outlet pipe (3) is arranged at the bottom of the liquid outlet device (10). An insertion plate (9) is inserted into the top of the interior of the chromatography column body (1). A cylinder (2) is arranged on the top of the insertion plate (9), the bottom of the cylinder (2) is in contact with the top of the top plate (4), a cylinder inner cavity (8) is provided inside the cylinder (2), the cylinder inner cavity (8) is in the shape of a truncated cone with a top diameter larger than a bottom diameter, a guide plate (15) is arranged inside the cylinder inner cavity (8), the surface of the guide plate (15) is in contact with the inner wall of the cylinder inner cavity (8), and a filter plate (7) is arranged at the bottom of the cylinder inner cavity (8).

2. A combined chromatography column for chemical analysis according to claim 1, characterized in that: A sieve plate (11) is fixedly connected to the inner bottom of the liquid outlet device (10).

3. A combined chromatography column for chemical analysis according to claim 1, characterized in that: The bottom plate (5) is provided with a plurality of fixing openings (16), and the top plate (6) of the liquid outlet device is provided with a limiting opening corresponding to the fixing opening (16), and the limiting opening and the fixing opening (16) are connected via fixing bolts (12).

4. A combined chromatography column for chemical analysis according to claim 1, characterized in that: A card slot (13) is provided at the top of the top plate (4), and a card block (14) is snap-fittedly connected to the card slot (13), and the top of the card block (14) is connected to the bottom of the cylinder (2).

Images