A condensation reflux device for preparing 2-bromoisobutyric acid methyl ester

Abstract

The utility model relates to the technical field of experimental apparatus, in particular to a kind of 2-bromoisobutyric acid methyl ester preparation condensation reflux device, and it is completed to the condensation reflux processing of 2-bromoisobutyric acid methyl ester by condensing device, detachable support is provided to condensing device by supporting device, support and condensing device fixed connection, reduce the situation that condensing device itself appears during operation Process shaking, through sealing device, the cleaning of equipment is facilitated, the practicability of device is improved;Including condensing device, supporting device and sealing device, supporting device is installed on condensing device, sealing device is installed on condensing device.

Description

Technical Field

[0001] This utility model relates to the technical field of experimental apparatus, and in particular to a condenser reflux apparatus for the preparation of methyl 2-bromoisobutyrate. Background Technology

[0002] Methyl 2-bromoisobutyrate is a chemical substance that can be used as an organic synthesis intermediate, polymer material, surface modifier, fragrance and coating, and participate in the synthesis of pesticide intermediates, such as key components of herbicides and insecticides. It has certain flammability, irritation and toxicity, and needs to be stored in a cool, dry place in a sealed container, avoiding contact with oxidants and strong acids. In case of leakage, it should be absorbed with sand or vermiculite to prevent it from flowing into sewers.

[0003] The existing Chinese utility model patent with application number CN201820125596.1 relates to a condenser tube, including a double-layer condenser tube, an inner tube, a water inlet tube, and a water outlet tube, to avoid the condensed water from affecting the experiment.

[0004] However, the aforementioned device does not have the ability to support and fix itself in actual use, and requires external brackets for fixation. It is easily affected by external forces and shakes as a whole, resulting in insufficient stability. Furthermore, it does not have the ability to monitor the temperature of different areas of the equipment as a whole, and therefore cannot reflect the overall heat exchange efficiency. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a condensation and reflux treatment device for methyl 2-bromoisobutyrate by using a condensation device, a detachable support for the condensation device by a support device, and a fixed connection between the support and the condensation device to reduce shaking during the operation of the condensation device. A sealing device facilitates the cleaning of the equipment, thereby improving the practicality of the device.

[0006] This invention relates to a condensation and reflux apparatus for the preparation of methyl 2-bromoisobutyrate; it includes a condensation device, a support device, and a sealing device. The support device is installed on the condensation device, and the sealing device is also installed on the condensation device. The condensation device completes the condensation and reflux treatment of methyl 2-bromoisobutyrate. The support device provides a detachable support for the condensation device, and the support is fixedly connected to the condensation device to reduce shaking during operation. The sealing device facilitates cleaning of the equipment, thus improving the practicality of the apparatus.

[0007] Preferably, the condensation device includes a serpentine condenser tube, temperature sensors, heat exchange sleeves, inlet and outlet liquid connection pipes, and main supply and drainage pipes. The serpentine condenser tube itself has a continuously bent structure. A set of temperature sensors is installed on each set of bends in the serpentine condenser tube. Multiple sets of heat exchange sleeves are respectively fitted onto multiple sets of straight structural areas on the serpentine condenser tube. A set of vertical main supply and drainage pipes is provided on the left and right sides of the serpentine condenser tube. A water outlet is provided at the upper part of the heat exchange sleeve, and a water inlet is provided at the lower part of the heat exchange sleeve. Both the water inlet and outlet of the heat exchange sleeve are connected to a set of main supply and drainage pipes through inlet and outlet liquid connection pipes. The main supply and discharge pipelines are connected, with one set of main supply and discharge pipelines only connected to the inlet and outlet liquid connection pipes of all inlets. By introducing heat exchange liquid into the main supply and discharge pipelines connected to all inlets, the heat exchange liquid is supplied to the interior of multiple sets of heat exchange sleeves to exchange heat with the gas in the serpentine condenser tubes, thereby causing the gas to condense into liquid droplets. The liquid that has completed heat exchange in the heat exchange sleeves is recovered through another set of main supply and discharge pipelines. The temperature of each part in the serpentine condenser tubes is monitored by multiple sets of temperature sensors, which makes it easy for operators to control the supply rate of heat exchange liquid and improves the practicality of the device.

[0008] Preferably, the support device includes clamping plates, support legs, arc-shaped clamping seats, connecting bolts, and internal threaded seats. Two sets of clamping plates are located on the front and rear sides of the serpentine condenser tube, respectively. Multiple sets of arc-shaped clamping seats are provided on the opposite sides of the two sets of clamping plates. The arc-shaped clamping seats on the two sets of clamping plates cooperate to fix the position of multiple sets of heat exchange sleeves. Support legs are installed at the lower part of the clamping plates. Multiple sets of connecting bolts and internal threaded seats are provided on the two sets of clamping plates. The two sets of clamping plates are connected and fixed by multiple sets of connecting bolts and internal threaded seats. The arc-shaped clamping seats are used to fix the heat exchange sleeves and the main body of the serpentine condenser tube, which facilitates disassembly and cleaning, has strong stability, and is aesthetically pleasing, thus improving the practicality of the device.

[0009] Preferably, it also includes anti-slip grooves, with anti-slip grooves provided on the side of the connecting bolts; the anti-slip grooves on the side of the connecting bolts make it easier for operators to manually rotate the connecting bolts to complete the connection and fixation of the two sets of clamping plates, thus improving the practicality of the device.

[0010] Preferably, the sealing device includes a sealing cap, fastening bolts, a sealing protrusion, and a flange. A set of flanges is installed at both ends of the main supply and discharge pipeline. One end of the main supply and discharge pipeline is connected to an external pressure pump via the flange. A sealing cap is fixed to the other end of the flange via fastening bolts. A sealing protrusion is provided on the lower end face of the sealing cap. The sealing cap and sealing protrusion seal one end of the main supply and discharge pipeline, reducing liquid leakage. When multiple sets of serpentine condenser tubes are operating simultaneously, multiple sets of liquid inlet and outlet main pipelines are connected in series via pipelines, improving the practicality of the device.

[0011] Preferably, it also includes a control valve, which is installed on the inlet and outlet liquid connection pipe connected to the inlet of the heat exchange jacket. The control valve allows the operator to control the opening and closing of multiple sets of inlet and outlet liquid connection pipes, and adjusts the device in conjunction with the monitoring data of multiple sets of temperature sensors, which facilitates experimental operations and improves the practicality of the device.

[0012] Preferably, it also includes rubber feet, with rubber feet installed on the lower end face of the legs; the rubber feet on the lower end face of the legs reduce scratches on the platform during equipment handling and movement, thus improving the practicality of the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the condensation and reflux treatment of methyl 2-bromoisobutyrate is completed by the condensation device; the condensation device is provided with a detachable support body by the support device, and the support body is fixedly connected to the condensation device, which reduces the shaking of the condensation device during operation; and the sealing device facilitates the cleaning of the equipment, thus improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0016] Figure 3 This is an exploded structural diagram of the present invention;

[0017] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0018] The following are labeled in the attached diagram: 1. Serpentine condenser tube; 2. Temperature sensor; 3. Heat exchanger jacket; 4. Inlet / outlet liquid connection pipe; 5. Main supply / discharge pipe; 6. Clamping plate; 7. Support leg; 8. Arc-shaped clamping seat; 9. Connecting bolt; 10. Internal threaded seat; 11. Anti-slip groove; 12. Sealing cap; 13. Fastening bolt; 14. Sealing protrusion; 15. Flange; 16. Control valve; 17. Rubber support foot. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example

[0020] Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the support device is installed on the condensing device, and the sealing device is installed on the condensing device;

[0021] First, the reaction gas is introduced into the serpentine condenser 1. At the same time, heat exchange liquid is introduced into the main supply and discharge pipe 5 connected to all the water inlets, thereby supplying the heat exchange liquid into the interior of multiple sets of heat exchange sleeves 3 to exchange heat with the gas in the serpentine condenser 1. The opening and closing of multiple sets of control valves 16 are controlled according to the temperature monitored by the temperature sensor 2. When conducting experiments on multiple sets of serpentine condensers 1 at the same time, the multiple sets of main supply and discharge pipes 5 can be connected in series, which improves the practicality of the device.

[0022] The condensation device includes a serpentine condenser tube 1, a temperature sensor 2, a heat exchange sleeve 3, an inlet / outlet liquid connection pipe 4, and a main supply / drainage pipe 5. The serpentine condenser tube 1 has a continuous bending structure. A set of temperature sensors 2 is installed on each bending area of ​​the serpentine condenser tube 1. Multiple sets of heat exchange sleeves 3 are respectively fitted on multiple straight structural areas of the serpentine condenser tube 1. A set of vertical main supply / drainage pipes 5 is set on the left and right sides of the serpentine condenser tube 1. A water outlet is set at the upper part of the heat exchange sleeve 3, and a water inlet is set at the lower part of the heat exchange sleeve 3. The water inlet and outlet of the heat exchange sleeve 3 are connected to a set of main supply / drainage pipes 5 through the inlet / outlet liquid connection pipes 4. A set of main supply / drainage pipes 5 is only connected to all the inlet / outlet liquid connection pipes 4 connected to the water inlet.

[0023] The support device includes clamping plates 6, support legs 7, arc-shaped clamping seats 8, connecting bolts 9, and internal thread seats 10. Two sets of clamping plates 6 are located on the front and rear sides of the serpentine condenser tube 1, respectively. Multiple sets of arc-shaped clamping seats 8 are provided on the opposite sides of the two sets of clamping plates 6. The arc-shaped clamping seats 8 on the two sets of clamping plates 6 can cooperate to fix and clamp the positions of multiple sets of heat exchange sleeves 3. Support legs 7 are installed on the lower part of the clamping plates 6. Multiple sets of connecting bolts 9 and internal thread seats 10 are provided on the two sets of clamping plates 6, respectively.

[0024] It also includes anti-slip grooves 11, and anti-slip grooves 11 are provided on the side of the connecting bolts 9;

[0025] The sealing device includes a sealing cover 12, fastening bolts 13, sealing protrusions 14 and flanges 15. A set of flanges 15 is provided at both ends of the main supply and discharge pipeline 5. One end of the main supply and discharge pipeline 5 is connected to an external pressure pump through the flange 15. The other end of the flange 15 is fixed with a sealing cover 12 through fastening bolts 13. A sealing protrusion 14 is provided on the lower end face of the sealing cover 12.

[0026] It also includes a control valve 16, which is installed on the inlet / outlet liquid connection pipe 4 connected to the inlet of the heat exchanger jacket 3.

[0027] It also includes rubber feet 17, which are installed on the lower end face of the legs 7;

[0028] The condensation and reflux treatment of methyl 2-bromoisobutyrate is completed by a condensation device. A support device provides a detachable support for the condensation device, which is fixedly connected to the condensation device to reduce shaking during operation. A sealing device facilitates cleaning of the equipment and improves its practicality.

[0029] like Figures 1 to 4 As shown, this utility model discloses a condensation reflux device for the preparation of methyl 2-bromoisobutyrate. During operation, the reactant gas is first introduced into the serpentine condenser tube 1, while simultaneously, heat exchange liquid is introduced into the main supply and discharge pipes 5 connected to all inlets. This heat exchange liquid is then supplied to multiple sets of heat exchange sleeves 3 to exchange heat with the gas inside the serpentine condenser tube 1. The opening and closing of multiple control valves 16 are controlled according to the temperature monitored by the temperature sensor 2. When conducting simultaneous experiments with multiple sets of serpentine condenser tubes 1, the multiple supply and discharge main pipes 5 can be connected in series, improving the practicality of the device.

[0030] The control valve 16 of the condensation reflux device for the preparation of methyl 2-bromoisobutyrate of this utility model is commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A condenser reflux apparatus for the preparation of methyl 2-bromoisobutyrate; characterized in that, It includes a condensing device, a supporting device, and a sealing device. The supporting device is installed on the condensing device, and the sealing device is installed on the condensing device.

2. The condenser reflux apparatus for preparing methyl 2-bromoisobutyrate as described in claim 1, characterized in that, The condensation device includes a serpentine condenser tube (1), a temperature sensor (2), a heat exchange sleeve (3), an inlet / outlet liquid connection pipe (4), and a main supply / drainage pipe (5). The serpentine condenser tube (1) has a continuous bending structure. A set of temperature sensors (2) is installed on each bending area of ​​the serpentine condenser tube (1). Multiple sets of heat exchange sleeves (3) are respectively fitted on multiple straight structural areas of the serpentine condenser tube (1). A set of vertical main supply / drainage pipes (5) is set on the left and right sides of the serpentine condenser tube (1). A water outlet is set at the top of the heat exchange sleeve (3), and a water inlet is set at the bottom of the heat exchange sleeve (3). The water inlet and outlet of the heat exchange sleeve (3) are connected to a set of main supply / drainage pipes (5) through the inlet / outlet liquid connection pipes (4). A set of main supply / drainage pipes (5) is only connected to the inlet / outlet liquid connection pipes (4) that connect to the water inlet.

3. The condenser reflux apparatus for preparing methyl 2-bromoisobutyrate as described in claim 2, characterized in that, The support device includes clamping plates (6), legs (7), arc-shaped clamping seats (8), connecting bolts (9) and internal thread seats (10). Two sets of clamping plates (6) are located on the front and rear sides of the serpentine condenser (1), respectively. Multiple sets of arc-shaped clamping seats (8) are provided on the opposite sides of the two sets of clamping plates (6). The arc-shaped clamping seats (8) on the two sets of clamping plates (6) can fix and clamp the positions of multiple sets of heat exchange sleeves (3) in cooperation. Legs (7) are installed on the lower part of the clamping plates (6). Multiple sets of connecting bolts (9) and internal thread seats (10) are provided on the two sets of clamping plates (6).

4. The condenser reflux apparatus for preparing methyl 2-bromoisobutyrate as described in claim 3, characterized in that, It also includes anti-slip grooves (11), and anti-slip grooves (11) are provided on the side of the connecting bolt (9).

5. The condenser reflux apparatus for preparing methyl 2-bromoisobutyrate as described in claim 4, characterized in that, The sealing device includes a sealing cover (12), fastening bolts (13), sealing protrusions (14) and flanges (15). A set of flanges (15) is provided at both ends of the main supply and discharge pipeline (5). One end of the main supply and discharge pipeline (5) is connected to an external pressure pump through the flange (15). The other end of the flange (15) is fixed with a sealing cover (12) through fastening bolts (13). A sealing protrusion (14) is provided on the lower end face of the sealing cover (12).

6. The condenser reflux apparatus for preparing methyl 2-bromoisobutyrate as described in claim 5, characterized in that, It also includes a control valve (16), which is installed on the inlet and outlet liquid connection pipe (4) connected to the inlet of the heat exchange jacket (3).

7. The condenser reflux apparatus for preparing methyl 2-bromoisobutyrate as described in claim 6, characterized in that, It also includes rubber feet (17), with rubber feet (17) installed on the lower end face of the leg (7).

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