Rapid temperature changing type chromatographic column oven

Abstract

The utility model discloses a quick variable temperature type chromatographic column oven, which comprises an oven body, a first upturning door, a second upturning door, a movable plate, a fixed clamp, a movable clamp, an air cylinder and a fan, the oven body is strip-shaped, both ends of the oven body are opened, one end of the oven body is provided with the first upturning door, the vertically arranged movable plate is arranged in the oven body, and the air cylinder is arranged on the movable clamp. The side, away from the first upturning door, of the movable plate is connected with an air cylinder, the air cylinder drives the movable plate to move in the length direction of the box body, and a fan is fixed to the end, close to the first upturning door, of the movable plate and comprises a heating module; according to the utility model, the movable plate is matched with the air cylinder, so that the internal effective space of the chromatographic column incubator can be adjusted according to a chromatographic column, the internal space of the chromatographic column incubator is basically in the minimum effective space meeting the use condition when the temperature is increased, the energy consumption of the chromatographic column incubator can be reduced as much as possible, and the temperature changing speed can be increased as much as possible.

Description

Rapid temperature change chromatography column oven Technical Field

[0001] This utility model relates to the technical field of chromatographs, and in particular to the technical field of chromatographic column ovens. Background Technology

[0002] Currently, column ovens are devices used to control the temperature of chromatographic columns, typically used in gas chromatography and liquid chromatography analysis. Column ovens can stably control the temperature of the chromatographic column to ensure the accuracy and repeatability of analytical results. They usually have temperature regulation functions, allowing analysis at different temperatures to meet various analytical needs. However, existing column ovens have a fixed internal volume. During heating, due to the relatively large volume, more heat is consumed and the heating time is longer. When the column is removed, the column oven needs to be cooled down, but because the heated area is long, heat dissipation is slow and time is also long, which is detrimental to improving the efficiency of the column oven. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the prior art by proposing a rapid temperature-changing chromatography column oven, which allows the effective volume of the chromatography column oven to be variable and enables rapid temperature changes.

[0004] To achieve the above objectives, this utility model proposes a rapid temperature-changing chromatography column oven, comprising a chamber body, a first upward-opening door, a second upward-opening door, a movable plate, a fixed clamp, a movable clamp, a cylinder, and a fan. The chamber body is elongated, with openings at both ends. One end of the chamber body has a first upward-opening door, and the interior of the chamber body contains a vertically arranged movable plate. The movable plate is connected to a cylinder on the side away from the first flip-up door. The cylinder drives the movable plate to move along the length of the box. A fan is fixed to the end of the movable plate near the first flip-up door. The fan includes a heating module. The box is equipped with a fixed clamp and a movable clamp. The fixed clamp is near the first flip-up door and fixed to the box. The movable clamp is near the movable plate and connected to the movable plate. Both the fixed clamp and the movable clamp are located in the area clamped by the first flip-up door and the fan. A long strip-shaped opening window is opened at the top of the box. The length of the opening window is consistent with the length of the box. A second flip-up door is installed at the top of the box, which completely covers the opening window. The lower projection of the opening window completely covers the movement trajectory of the movable clamp and the fixed clamp.

[0005] Preferably, a bottom plate is provided at the bottom of the box, and the box and the bottom plate are connected by several connecting rods, with the cylinder fixed on the bottom plate.

[0006] Preferably, the movable plate is covered with an elastic rubber layer, and the inner wall of the box is in contact with the elastic rubber layer.

[0007] Preferably, when the cylinder moves the movable plate to the furthest point from the first upward-opening door, a portion of the opening window is located on the side of the movable plate away from the first upward-opening door.

[0008] The beneficial effects of this utility model are as follows: By cooperating the movable plate with the cylinder, this utility model allows the internal effective space of the chromatography column oven to be adjusted according to the chromatography column. This ensures that the internal space of the chromatography column oven is basically at the minimum effective space that meets the usage conditions when heating, thereby minimizing energy consumption and increasing the temperature change rate.

[0009] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0010] Figure 1 is a front view of the rapid temperature-changing chromatography column oven of this utility model.

[0011] In the diagram: 1-box body, 2-movable plate, 3-bottom plate, 10-opening window, 11-first upward-opening door, 12-second upward-opening door, 15-fixing clamp, 20-cylinder, 21-fan, 22-elastic rubber layer, 25-movable clamp, 30-connecting rod. Detailed Implementation

[0012] Referring to Figure 1, the rapid temperature-changing chromatography column oven of this utility model includes a box body 1, a first flip-up door 11, a second flip-up door 12, a movable plate 2, a fixed clamp 15, a movable clamp 25, a cylinder 20, and a fan 21. The box body 1 is elongated and has openings at both ends. One end of the box body 1 is provided with the first flip-up door 11.

[0013] The box 1 has a vertically arranged movable plate 2 inside. The side of the movable plate 2 away from the first upward-opening door 11 is connected to a cylinder 20. The cylinder 20 drives the movable plate 2 to move along the length of the box 1. A fan 21 is fixed to the end of the movable plate 2 near the first upward-opening door 11. The fan 21 includes a heating module and a temperature control module.

[0014] The box 1 is equipped with a fixed clamp 15 and a movable clamp 25. The fixed clamp 15 is close to the first upward-opening door 11 and fixed to the box 1. The movable clamp 25 is close to the movable plate 2 and connected to the movable plate 2. Both the fixed clamp 15 and the movable clamp 25 are located in the area clamped by the first upward-opening door 11 and the fan 21.

[0015] The top of the box 1 is provided with a long strip-shaped opening window 10. The length direction of the opening window 10 is consistent with the length direction of the box 1. A second upward-opening door 12 is installed at the top of the box 1 to completely cover the opening window 10. The lower projection of the opening window 10 completely covers the movement trajectory of the movable clamp 25 and the fixed clamp 15.

[0016] To ensure sufficient installation space for the first upward-opening door 11 and the cylinder 20, a base plate 3 is provided below the housing 1. The housing 1 and the base plate 3 are connected by several connecting rods 30, and the cylinder 20 is fixed on the base plate 3.

[0017] To ensure that there is no large gap between the movable plate 2 and the inner wall of the box 1, and that the movable plate 2 can slide along the box 1, the movable plate 2 is covered with an elastic rubber layer 22, and the inner wall of the box 1 is in contact with the elastic rubber layer 22.

[0018] In order to prevent the movable plate 2 from being stuck at the end of the opening window 10, when the cylinder 20 drives the movable plate 2 to move to the furthest point from the first upward-opening door 11, a part of the opening window 10 is located on the side of the movable plate 2 away from the first upward-opening door 11.

[0019] The working process of this utility model:

[0020] In operation, this novel rapid-temperature-changing chromatography column oven opens the second top-hinged door 12. Based on the column length, the movable block 2 is adjusted to a suitable position using the cylinder 20. The column is then inserted into the chamber 1 through the opening window 10 and clamped by the fixing clamp 15 and the movable clamp 25. The second top-hinged door 12 is then closed, and the fan 21 is turned on, blowing hot air to heat the column. Because the interior of the chamber 1 is within the minimum effective space required for operation, the temperature inside the chamber 1 can change rapidly.

[0021] After the chromatographic column is removed, both the first flip door 11 and the second flip door 12 can be opened, and the fan 21 can be turned on at the same time. The fan 21 blows out cold air to cool the inside of the chamber 1. Since the previously heated volume is small, rapid temperature change can be achieved.

[0022] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A rapid temperature-swing chromatographic column oven, characterized by: Includes a box body (1), a first upward-opening door (11), a second upward-opening door (12), a movable plate (2), a fixed clamp (15), a movable clamp (25), a cylinder (20), and a fan (21). The box body (1) is long and narrow, with openings at both ends. One end of the box body (1) is provided with a first upward-opening door (11), and a vertically arranged movable plate (2) is provided inside the box body (1). The movable plate (2) is connected to a cylinder (20) on the side away from the first upward-opening door (11). The cylinder (20) drives the movable plate (2) to move along the length of the box body (1). A fan (21) is fixed on the end of the movable plate (2) near the first upward-opening door (11). The fan (21) includes a heating module and a temperature control module. The box body (1) is provided with a fixed clamp (15) and a movable clamp (25). The fixed clamp (15) is close to the first upward-opening door (11) and fixed to the box body (1). The movable clamp (25) is close to the movable plate (2). It is connected to the movable plate (2). The fixed clamp (15) and the movable clamp (25) are both located in the area between the first flip door (11) and the fan (21). The top of the box (1) is provided with a long strip-shaped opening window (10). The length direction of the opening window (10) is consistent with the length direction of the box (1). The top of the box (1) is equipped with a second flip door (12) that completely covers the opening window (10). The lower projection of the opening window (10) completely covers the movement trajectory of the movable clamp (25) and the fixed clamp (15).

2. The rapid temperature swing chromatography column oven of claim 1, wherein: The box (1) is provided with a bottom plate (3) below it. The box (1) and the bottom plate (3) are connected by several connecting rods (30). The cylinder (20) is fixed on the bottom plate (3).

3. The rapid temperature swing chromatography column oven of claim 1, wherein: The movable plate (2) is covered with an elastic rubber layer (22), and the inner wall of the box (1) is in contact with the elastic rubber layer (22).

4. The rapid temperature-changing chromatography column oven as described in claim 1, characterized in that: When the cylinder (20) moves the movable plate (2) to the furthest point from the first upturned door (11), a portion of the opening window (10) is located on the side of the movable plate (2) away from the first upturned door (11).

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