Column oven for gas chromatograph

Abstract

The utility model is applicable to the technical field of chromatographic instruments, and discloses a column oven for a gas chromatograph, a plurality of groups of second heat conduction pipes are fixedly arranged on the surfaces of two ends of the outer side of an insulation box, a plurality of groups of first heat conduction pipes are fixedly communicated between the outer sides of every two groups of second heat conduction pipes, and the first heat conduction pipes are arranged in the first heat conduction pipes. The first heat conduction pipe is located outside the heat preservation box, the top of the second heat conduction pipe fixedly communicates with a first connecting bent pipe which penetrates through and is fixedly installed at the top end of the fixed box, the bottom of the second heat conduction pipe fixedly communicates with a conveying bent pipe, a circulating pump is fixedly installed on the top surface of the outer side of the fixed box, and a discharging opening of the circulating pump fixedly communicates with a conveying pipe. According to the technical scheme, it is guaranteed that the temperature at different positions of the heat preservation box can rise rapidly, then reagent tubes at different positions in the heat preservation box can be subjected to the same temperature influence to be separated and processed, and the material separation efficiency is improved.

Description

Technical Field

[0001] The utility model is applicable to the technical field of chromatographs, and particularly relates to an oven for a gas chromatograph. Background Technique

[0002] At present, a chromatograph is an instrument that uses chromatographic separation technology and detection technology to qualitatively and quantitatively analyze a complex mixture of multiple components, enabling the separation and purification of the components of the mixture. During the development and research process of a gas chromatograph, in order to separate substances, it is necessary to increase the temperature of the oven.

[0003] However, currently when using the oven, it is necessary to place the material inside a reagent tube and then centrally place it inside the oven for heating treatment. When heating, the heating mechanism inside the oven is often arranged below the box body and the heat is conveyed through the operation of a fan. During this process, for the reagent tubes at a relatively high position, it is impossible to perform heating treatment in a timely and rapid manner, which not only affects the separation efficiency of substances, but also easily leads to insufficient temperature and affects the separation quality. Therefore, we propose an oven for a gas chromatograph. Content of the Utility Model

[0004] The main purpose of the utility model is to provide an oven for a gas chromatograph, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An oven for a gas chromatograph includes a mounting base. A fixed box is fixedly installed on the top surface of the mounting base. Support rods are fixedly installed on the four corners of the inner bottom surface of the fixed box, and an insulation box is fixedly installed between the tops of the support rods;

[0007] Second heat-conducting tubes are fixedly installed on both ends of the outer side of the insulation box, and the number of the second heat-conducting tubes is several groups. A first heat-conducting tube is fixedly connected and communicated between the outer sides of every two groups of the second heat-conducting tubes, and the number of the first heat-conducting tubes is several groups. The first heat-conducting tubes are located outside the insulation box;

[0008] A first connecting elbow is fixedly connected and communicated at the top of the second heat-conducting tube, and the first connecting elbow penetrates and is fixedly installed at the top end of the fixed box. A conveying elbow is fixedly connected and communicated at the bottom of the second heat-conducting tube. A circulating pump is fixedly installed on the top surface of the outer side of the fixed box, and the side of the first connecting elbow is fixedly connected to the feed inlet of the circulating pump. The discharge port of the circulating pump is fixedly connected and communicated with a conveying pipe.

[0009] By adopting the above technical solution, by arranging the first heat conduction tubes and the second heat conduction tubes which are connected and communicated on both the left and right sides and the rear side of the incubator, the heated liquid can be evenly transported to the outside of the incubator under the pumping and conveying action of the circulation pump, providing heating heat sources for different positions on the outside of the incubator, ensuring that the temperatures of different positions of the incubator can rise rapidly, and further enabling the reagent tubes at different positions inside the incubator to be separated and processed under the same temperature influence, ensuring the separation efficiency of the materials.

[0010] As an alternative solution of the technical solution of the present application, a heating pump is fixedly installed on the middle surface of the side of the fixed box.

[0011] By adopting the above technical solution, the required heat source is ensured to be provided through the structural action of the heating pump.

[0012] As an alternative solution of the technical solution of the present application, a second connecting elbow is fixedly communicated with the side of the conveying pipe, a liquid inlet pipe is fixedly communicated with the bottom of the second connecting elbow, and the bottom of the liquid inlet pipe is fixedly connected with the feed inlet of the heating pump. The bottom of the discharge port of the heating pump is fixedly communicated with a discharge pipe, and the bottom of the discharge pipe is fixedly connected with the top of the side of the conveying elbow.

[0013] By adopting the above technical solution, the transportation and treatment of the heated liquid are realized through the structural actions of the liquid inlet pipe and the discharge pipe.

[0014] As an alternative solution of the technical solution of the present application, a sealed box door is hinged to the side of the incubator through a rotating shaft.

[0015] By adopting the above technical solution, it is convenient to take and process the materials to be separated through the structural action of the sealed box door.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] 1. A column temperature box for a gas chromatograph according to the technical solution of the present application, by arranging the first heat conduction tubes and the second heat conduction tubes on both the left and right sides and the rear side of the incubator, connecting and communicating the first heat conduction tubes and the second heat conduction tubes, and under the communication action of the first connecting elbow and the second connecting elbow, the heated liquid can be evenly transported to the outside of the incubator under the pumping and conveying action of the circulation pump, providing heating heat sources for different positions on the outside of the incubator, ensuring that the temperatures of different positions of the incubator can rise rapidly, and further enabling the reagent tubes at different positions inside the incubator to be separated and processed under the same temperature influence, ensuring the separation efficiency of the materials.

[0018] 2. A column oven for a gas chromatograph according to the technical solution of the present application can reheat and raise the temperature of the heating liquid flowing inside the first heat conduction tube and the second heat conduction tube through the connection of the liquid inlet pipe and the liquid discharge pipe and under the operation of the heating pump, and then transport it, ensuring that the temperature inside the insulation box will not drop arbitrarily and affect the separation quality of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall rear view sectional structure of a column oven for a gas chromatograph according to the present utility model;

[0020] Figure 2 It is a schematic diagram of the front view sectional structure of the insulation box of a column oven for a gas chromatograph according to the present utility model.

[0021] Reference numerals: 1, mounting base; 11, fixed box; 12, support rod; 13, insulation box; 2, first heat conduction tube; 21, second heat conduction tube; 22, first connecting elbow; 23, circulation pump; 24, delivery pipe; 25, second connecting elbow; 26, liquid inlet pipe; 27, heating pump; 28, liquid discharge pipe; 29, delivery elbow; 3, sealed box door. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] As Figure 1-2 shown, the present utility model provides a technical solution: a column oven for a gas chromatograph, a heating pump 27 is fixedly installed on the middle surface of the side of the fixed box 11, second heat conduction tubes 21 are fixedly installed on the outer surfaces of both ends of the insulation box 13, and the number of the second heat conduction tubes 21 is several groups. A first heat conduction tube 2 is fixedly connected between the outer sides of every two groups of the second heat conduction tubes 21, and the number of the first heat conduction tubes 2 is several groups. The first heat conduction tube 2 is located outside the insulation box 13.

[0023] In this technical solution (as shown by Figure 1 and Figure 2 ), a liquid discharge pipe 28 is fixedly connected to the bottom of the discharge port of the heating pump 27, and the bottom of the liquid discharge pipe 28 is fixedly connected to the top side of the delivery elbow 29.

[0024] In this technical solution (as shown by Figure 1 and Figure 2 ), a sealed box door 3 is hinged to the side of the insulation box 13 through a rotating shaft. A first connecting elbow 22 is fixedly connected to the top of the second heat conduction tube 21, and the first connecting elbow 22 is fixedly installed through the top of the fixed box 11. A delivery elbow 29 is fixedly connected to the bottom of the second heat conduction tube 21. A circulation pump 23 is fixedly installed on the outer top surface of the fixed box 11, and the side of the first connecting elbow 22 is fixedly connected to the feed port of the circulation pump 23. A delivery pipe 24 is fixedly connected to the discharge port of the circulation pump 23.

[0025] During operation, the circulation pump 23 and the heating pump 27 are turned on through an external control switch. During operation, the liquid heated by the operation of the heating pump 27 is transported into the drain pipe 28, and then transported into the first heat conduction pipe 2 and the second heat conduction pipe 21 through the conveying elbow 29. Furthermore, the heat source required for separation can be provided inside the incubator 13. After sufficient heat sources are provided at different positions inside the incubator 13 for temperature increase treatment, the sealed box door 3 is pulled outwards. Then, the material reagent tube to be separated is placed inside the incubator 13. Subsequently, under the operation of the circulation pump 23, the heated liquid is input through the first connecting elbow 22, and then synchronously transported into the liquid inlet pipe 26 through the conveying pipe 24 and the second connecting elbow 25. After being reheated by the heating pump 27, it is circulated and transported to perform separation and heat preservation treatment on the materials inside the incubator 13.

Claims

1. A column oven for a gas chromatograph, comprising a mounting base (1), characterized in that: A fixing box (11) is fixedly mounted on the top surface of the mounting base (1), support rods (12) are fixedly mounted on the four corner surfaces of the inner bottom of the fixing box (11), and a heat preservation box (13) is fixedly mounted between the tops of the support rods (12); Second heat-conducting pipes (21) are fixedly mounted on both ends of the outer side of the heat-insulating box (13), and the number of the second heat-conducting pipes (21) is a plurality of groups, and the outer sides of every two groups of the second heat-conducting pipes (21) are fixedly connected with a first heat-conducting pipe (2), and the number of the first heat-conducting pipes (2) is a plurality of groups, and the first heat-conducting pipes (2) are located on the outer side of the heat-insulating box (13); The top of the second heat-conducting pipe (21) is fixedly connected to a first connecting elbow (22), and the first connecting elbow (22) penetrates and is fixedly installed on the top of the fixed box (11), the bottom of the second heat-conducting pipe (21) is fixedly connected to a conveying elbow (29), a circulation pump (23) is fixedly installed on the top surface of the outer side of the fixed box (11), and the side of the first connecting elbow (22) is fixedly connected to the feeding port of the circulation pump (23), and the discharge port of the circulation pump (23) is fixedly connected to a conveying pipe (24).

2. A column oven for a gas chromatograph according to claim 1, characterized in that: A heating pump (27) is fixedly mounted on the middle end surface of the side of the fixed box (11).

3. A column oven for a gas chromatograph according to claim 1, characterized in that: The side of the delivery pipe (24) is fixedly connected to a second connecting elbow (25), the bottom of the second connecting elbow (25) is fixedly connected to a liquid inlet pipe (26), and the bottom of the liquid inlet pipe (26) is fixedly connected to a feed port of a heating pump (27).

4. A column oven for a gas chromatograph according to claim 2, characterized in that: The bottom of the discharge port of the heating pump (27) is fixedly connected to a discharge pipe (28), and the bottom of the discharge pipe (28) is fixedly connected to the top of the side of the conveying elbow (29).

5. A column oven for a gas chromatograph according to claim 1, characterized in that: The side of the heat preservation box (13) is hinged with a sealed box door (3) via a rotating shaft.

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