Leak-proof 5-bromo-2-chlorobenzoic acid bromination apparatus

Abstract

The utility model relates to bromination device technical field, especially is a kind of anti-leakage 5-bromo-2-chlorobenzoic acid bromination device, including several vertical support rods, several support rods are fixedly installed with the top plate and bottom plate corresponding by bolt between it. The utility model has the advantages that first gas hood is fixed on the top of top plate by bolt, and the O-shaped sealing ring on the bottom is closely combined with the top surface of top plate, second gas hood is also fixed on the bottom of bottom plate by bolt, and the O-shaped sealing ring on the top is combined with the bottom surface of bottom plate, to ensure that there is no gap between gas hood and mounting surface, and the gas collection sealing property is improved. Subsequently, leakage gas is collected to tee pipe by L-shaped connecting pipe on the outer surface of first gas hood and second gas hood, and then the subsequent tail gas treatment equipment is connected to the tee pipe for centralized treatment. This design can collect toxic gas leaked from the connection of pipeline, which avoids gas corrosion of surrounding equipment and prevents operators from inhaling toxic gas and harming health.

Description

Technical Field

[0001] This utility model relates to the field of bromination equipment technology, and in particular to a leak-proof bromination equipment for 5-bromo-2-chlorobenzoic acid. Background Technology

[0002] The bromination apparatus for 5-bromo-2-chlorobenzoic acid can be summarized as follows: a specialized reaction vessel designed specifically for the bromination reaction of organic compounds, featuring corrosion resistance, sealing, temperature control, and stirring functions. Its core function is to achieve selective substitution or addition reactions between bromine and the substrate, making it a key piece of equipment for synthesizing brominated compounds in the fine chemical industry. Specifically, this equipment typically consists of a vessel body, vessel cover, stirring system, temperature control device, inlet, outlet, exhaust gas outlet, and safety accessories. The vessel body is often made of materials resistant to bromine and acid corrosion, or a corrosion-resistant coating is applied to the inner wall of a standard metal vessel to prevent the reaction system from corroding the equipment.

[0003] Existing bromination reactors typically have inlet pipes, reflux pipes, and exhaust pipes connected to the top, and outlet pipes and drain pipes connected to the bottom. These pipes are usually connected to the reactor body via flanges or threads, and sealed with gaskets. However, during long-term use, the gaskets may fail due to corrosion, aging, vibration, and other factors, leading to the leakage of toxic gases from the connections. The reaction process also generates toxic gases such as HBr. Once these gases leak, they not only corrode surrounding equipment but also endanger the health of operators and cause environmental pollution. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this invention is to provide a leak-proof 5-bromo-2-chlorobenzoic acid bromination device to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, one embodiment of this utility model provides a leak-proof 5-bromo-2-chlorobenzoic acid bromination device, comprising a plurality of vertically arranged support rods. A top plate and a bottom plate, corresponding to each other, are fixedly installed between the support rods by bolts. A bromination tank is disposed between the top plate and the bottom plate. The top and bottom of the bromination tank are respectively attached to the bottom surface of the top plate and the top surface of the bottom plate. Two symmetrically arranged feed pipes are fixedly connected to the top of the bromination tank, and a discharge pipe is fixedly connected to the bottom of the bromination tank. A first gas collecting hood and a second gas collecting hood are fixedly installed to the top of the top plate and the bottom of the bottom plate by bolts, respectively. The top ends of both feed pipes penetrate the first gas collecting hood and are located above the top plate, while the bottom end of the discharge pipe penetrates the second gas collecting hood and is located below the bottom plate. An L-shaped connecting pipe is fixedly connected to the outer surface of each of the first and second gas collecting hoods, and a tee pipe is fixedly installed between the two L-shaped connecting pipes by bolts.

[0007] Preferably, one end of each of the above-mentioned L-shaped connecting pipes near the tee pipe is installed on one side of the top plate and the bottom plate respectively by clamps.

[0008] Preferably, in any of the above embodiments, a motor is fixedly connected to the top of the first gas collecting hood, and a drive shaft rotatably connected to the first gas collecting hood is fixedly connected to the output end of the motor. A stirring element is rotatably connected to the top of the bromination tank via a bearing. The stirring part of the stirring element is located inside the bromination tank. A spline shaft is fixedly connected to the top of the stirring element, and the spline shaft is inserted into the bottom end of the drive shaft.

[0009] Preferably, in any of the above solutions, the bottom end of the drive shaft is provided with a spline groove that is adapted to the spline shaft, and the spline shaft is inserted into the inside of the spline groove.

[0010] Preferably, in any of the above schemes, O-rings are fixedly connected to the bottom of the first gas collecting hood and the top of the second gas collecting hood, and the two O-rings are respectively attached to the top surface of the top plate and the bottom surface of the bottom plate.

[0011] Preferably, in any of the above embodiments, the top and bottom of the bromination tank are fixedly connected with a plurality of circumferentially arrayed pins, and the plurality of pins are respectively inserted into the bottom surface of the top plate and the top surface of the bottom plate.

[0012] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0013] 1. When a seal fails at the connection between the feed pipe at the top or the discharge pipe at the bottom of the bromination tank and the tank body, the leaked toxic gases (such as bromine, HBr) will be promptly contained by the first or second gas collection hood, preventing the gases from directly diffusing into the surrounding environment. The first gas collection hood is bolted to the top of the top plate, with its bottom O-ring tightly fitted to the top surface of the top plate. Similarly, the second gas collection hood is bolted to the bottom of the bottom plate, with its top O-ring tightly fitted to the bottom surface of the bottom plate, ensuring a seamless connection between the gas collection hood and the mounting surface and improving gas collection sealing. Subsequently, the leaked gas is collected through L-shaped connecting pipes on the outer surfaces of the first and second gas collection hoods into a tee pipe, which then connects to subsequent tail gas treatment equipment for centralized treatment. This design can specifically collect toxic gases leaking from pipe connections, preventing gas corrosion of surrounding equipment, preventing operators from inhaling toxic gases and harming their health, and eliminating environmental pollution caused by the unorganized emission of toxic gases, thus meeting the requirements of safe production and environmental protection.

[0014] 2. When maintenance or replacement of the bromination tank is required, first remove the bolts between the two L-shaped connecting pipes and the tee pipe. Then loosen the clamps securing the L-shaped connecting pipes to the top and bottom plates, separating the gas collection hood from the exhaust gas treatment channel. Next, unscrew the bolts securing the support rods on the top and bottom plates to separate the top and bottom plates. At this point, the pins at the top and bottom of the bromination tank can be pulled out from the bottom surface of the top plate and the top surface of the bottom plate, respectively, releasing the tank's positioning, allowing the bromination tank to be removed. During installation, first align the pins of the bromination tank with the corresponding holes on the top and bottom plates for quick and accurate positioning. Then, fix the support rods with bolts to clamp the bromination tank between the top and bottom plates. Next, fix the L-shaped connecting pipes to one side of the top and bottom plates with clamps. Finally, connect the L-shaped connecting pipes to the tee pipe with bolts. The entire disassembly and assembly process is simple to operate and requires no complicated tools. The pin positioning design ensures that the bromination tank is installed in an accurate position, avoiding the impact of installation deviation on the sealing of the pipeline connection. At the same time, the disassembly design of the gas collection hood does not interfere with the maintenance of the tank, greatly improving the efficiency of equipment maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the assembly of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the assembly of this utility model;

[0017] Figure 3 This is a first-view structural diagram of the support rod of this utility model;

[0018] Figure 4 This is a second-view structural diagram of the support rod of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the tee pipe of this utility model;

[0020] Figure 6 This is a schematic diagram of the bromination tank of this utility model.

[0021] In the diagram: 1-Support rod, 2-Top plate, 3-Bottom plate, 4-Bromination tank, 5-Infeed pipe, 6-Outlet pipe, 7-First gas collection hood, 8-Second gas collection hood, 9-L-type connecting pipe, 10-T-connector pipe, 11-Motor, 12-Drive shaft, 13-Agitator, 14-Splined shaft, 15-Splined groove, 16-O-ring seal, 17-Pin. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0023] like Figures 1 to 6 As shown, a leak-proof 5-bromo-2-chlorobenzoic acid bromination device includes several vertically arranged support rods 1. A top plate 2 and a bottom plate 3, corresponding to each other, are bolted together between the support rods 1. A bromination tank 4 is positioned between the top plate 2 and the bottom plate 3. The top and bottom of the bromination tank 4 are respectively attached to the bottom surface of the top plate 2 and the top surface of the bottom plate 3. Two symmetrically arranged feed pipes 5 are fixedly connected to the top of the bromination tank 4, and a discharge pipe 6 is fixedly connected to the bottom of the bromination tank 4. A first gas collecting hood 7 and a second gas collecting hood 8 are bolted together to the top of the top plate 2 and the bottom of the bottom plate 3, respectively. The top ends of the two feed pipes 5 pass through the first gas collecting hood 7 and are located above the top plate 2, while the bottom ends of the discharge pipe 6 pass through the second gas collecting hood 8 and are located below the bottom plate 3. An L-shaped connecting pipe 9 is fixedly connected to the outer surface of the first gas collecting hood 7 and the second gas collecting hood 8, respectively. A tee pipe 10 is bolted between the two L-shaped connecting pipes 9.

[0024] As an optional technical solution of this utility model, the ends of the two L-shaped connecting pipes 9 near the tee pipe 10 are respectively installed on one side of the top plate 2 and the bottom plate 3 by clamps. The clamp connection method facilitates quick installation and removal of the L-shaped connecting pipes 9, which not only facilitates subsequent maintenance of the pipeline or gas collection hood, but also ensures the sealing of the connection part, prevents leaked gas from escaping from the connection, and ensures the gas collection effect.

[0025] As an optional technical solution of this utility model, a motor 11 is fixedly connected to the top of the first gas collecting hood 7, and a drive shaft 12 rotatably connected to the output end of the motor 11 is fixedly connected to the first gas collecting hood 7. A stirring element 13 is rotatably connected to the top of the bromination tank 4 through a bearing. The stirring part of the stirring element 13 is located inside the bromination tank 4. A spline shaft 14 is fixedly connected to the top of the stirring element 13. The spline shaft 14 is inserted into the bottom end of the drive shaft 12. The motor 11 is connected to the spline shaft 14 at the top of the stirring element 13 through the drive shaft 12, which can provide stable power to the stirring element 13, so that the stirring element 13 can efficiently stir the material in the bromination tank 4 and promote the uniform reaction. At the same time, the insertion structure makes it easy to separate the stirring element 13 from the drive shaft 12, which provides convenience for the maintenance or replacement of the stirring element 13.

[0026] As an optional technical solution of this utility model, the bottom end of the drive shaft 12 is provided with a spline groove 15 that is adapted to the spline shaft 14. The spline shaft 14 is inserted into the inside of the spline groove 15. The spline groove 15 at the bottom end of the drive shaft 12 is adapted to the spline shaft 14. The spline connection can transmit greater torque, ensuring that the power of the motor 11 is stably transmitted to the stirring component 13 and avoiding slippage during the stirring process. Moreover, the precise adaptation structure can ensure that the drive shaft 12 and the spline shaft 14 rotate coaxially, improving the stirring stability.

[0027] As an optional technical solution of this utility model, O-rings 16 are fixedly connected to the bottom of the first gas collecting hood 7 and the top of the second gas collecting hood 8. The two O-rings 16 are respectively attached to the top surface of the top plate 2 and the bottom surface of the bottom plate 3. The O-rings 16 at the bottom of the first gas collecting hood 7 and the top of the second gas collecting hood 8 are respectively attached to the top surface of the top plate 2 and the bottom surface of the bottom plate 3, which can enhance the sealing performance between the gas collecting hood and the mounting surface, prevent the leakage of toxic gas from spreading from the gaps, further improve the reliability of gas collection, and ensure operational safety and environmental protection.

[0028] As an optional technical solution of this utility model, the top and bottom of the bromination tank 4 are fixedly connected with a number of circumferentially arrayed pins 17. The pins 17 are respectively inserted into the bottom surface of the top plate 2 and the top surface of the bottom plate 3. The pins 17 at the top and bottom of the bromination tank 4 are inserted into the bottom surface of the top plate 2 and the top surface of the bottom plate 3, which can quickly realize the positioning and installation of the bromination tank 4, avoid positional deviation during installation, ensure the accurate relative position of the feed pipe 5, the discharge pipe 6 and the gas collection hood, and improve the stability of the tank after installation, reducing the impact of vibration on the sealing performance of the pipe connection.

[0029] A leak-proof bromination device for 5-bromo-2-chlorobenzoic acid, the working principle of which is as follows:

[0030] 1): When the inlet pipe 5 at the top of the bromination tank 4 or the outlet pipe 6 at the bottom fails to seal at the connection with the tank, the leaked toxic gas (such as bromine, HBr) will be promptly covered by the first gas collection hood 7 or the second gas collection hood 8.

[0031] 2): The first gas collection hood 7 is fixed to the top of the top plate 2 with bolts, and the O-ring 16 at its bottom is tightly fitted to the top surface of the top plate 2. The second gas collection hood 8 is also fixed to the bottom of the bottom plate 3 with bolts, and the O-ring 16 at its top is fitted to the bottom surface of the bottom plate 3, ensuring that there is no gap between the gas collection hood and the mounting surface and improving the gas collection sealing performance.

[0032] 3): The leaked gas is collected through the L-shaped connecting pipe 9 on the outer surface of the first gas collection hood 7 and the second gas collection hood 8 to the tee pipe 10, and then connected to the subsequent exhaust gas treatment equipment for centralized treatment.

[0033] In summary, this leak-proof 5-bromo-2-chlorobenzoic acid bromination device ensures that when the seal fails at the connection between the feed pipe 5 at the top of the bromination tank 4 and the discharge pipe 6 at the bottom, the leaked toxic gases (such as bromine and HBr) will be promptly contained by the first gas collection hood 7 or the second gas collection hood 8, preventing the gases from directly diffusing into the surrounding environment. The first gas collection hood 7 is bolted to the top of the top plate 2, and its bottom O-ring seal 16 is tightly fitted to the top surface of the top plate 2. Similarly, the second gas collection hood 8 is bolted to the bottom of the bottom plate 3, and its top O-ring seal 16 is fitted to the bottom surface of the bottom plate 3, ensuring no gaps between the gas collection hood and the mounting surface and improving the gas collection sealing performance. Subsequently, the leaked gas is collected through the L-shaped connecting pipes 9 on the outer surfaces of the first and second gas collection hoods 7 and then into the tee pipe 10, which is then connected to subsequent tail gas treatment equipment for centralized treatment. This design can specifically collect toxic gases leaking from pipe connections, preventing gas corrosion of surrounding equipment and protecting operators from inhaling toxic gases that could harm their health. It also eliminates environmental pollution caused by the unorganized emission of toxic gases, meeting both safety and environmental protection requirements. When maintenance or replacement of the bromination tank 4 is required, first remove the bolts between the two L-shaped connecting pipes 9 and the tee pipe 10. Then loosen the clamps securing the L-shaped connecting pipes 9 to the top plate 2 and bottom plate 3, separating the gas collection hood from the exhaust gas treatment channel. Next, unscrew the bolts securing the support rods 1 on the top plate 2 and bottom plate 3, allowing the top plate 2 and bottom plate 3 to be separated. At this point, the pins 17 at the top and bottom of the bromination tank 4 can be pulled out from the bottom surface of the top plate 2 and the top surface of the bottom plate 3, respectively, releasing the tank's positioning, and allowing the bromination tank 4 to be removed. During installation, first align the pin 17 of the bromination tank 4 with the corresponding insertion holes on the top plate 2 and bottom plate 3 for quick and accurate positioning. Then, fix the support rod 1 with bolts to clamp the bromination tank 4 between the top plate 2 and bottom plate 3. Next, fix the L-shaped connecting pipe 9 to one side of the top plate 2 and bottom plate 3 with clamps. Finally, connect the L-shaped connecting pipe 9 to the tee pipe 10 with bolts. The entire disassembly and assembly process is simple and requires no complicated tools. The positioning design of the pin 17 ensures the accurate installation position of the bromination tank 4, avoiding the impact of installation deviation on the sealing of the pipeline connection. At the same time, the disassembly design of the gas collection hood does not interfere with tank maintenance, greatly improving equipment maintenance efficiency.

Claims

1. A leak-proof bromination device for 5-bromo-2-chlorobenzoic acid, characterized in that: It includes several vertically arranged support rods (1), and a top plate (2) and a bottom plate (3) corresponding to each other are fixedly installed between the support rods (1) by bolts. A bromination tank (4) is arranged between the top plate (2) and the bottom plate (3). The top and bottom of the bromination tank (4) are respectively attached to the bottom surface of the top plate (2) and the top surface of the bottom plate (3). Two symmetrically arranged feed pipes (5) are fixedly connected to the top of the bromination tank (4), and a discharge pipe (6) is fixedly connected to the bottom of the bromination tank (4). The top plate ( The top of the 2) and the bottom of the base plate (3) are respectively fixedly installed with a first gas collecting hood (7) and a second gas collecting hood (8) by bolts. The top ends of the two feed pipes (5) pass through the first gas collecting hood (7) and are located above the top plate (2). The bottom end of the discharge pipe (6) passes through the second gas collecting hood (8) and is located below the base plate (3). An L-shaped connecting pipe (9) is fixedly connected to the outer surface of the first gas collecting hood (7) and the second gas collecting hood (8). A three-way pipe (10) is fixedly installed between the two L-shaped connecting pipes (9) by bolts.

2. The leak-proof 5-bromo-2-chlorobenzoic acid bromination apparatus according to claim 1, characterized in that: The two L-shaped connecting pipes (9) are respectively installed on one side of the top plate (2) and the bottom plate (3) by clamps at one end of the three-way pipe (10).

3. The leak-proof 5-bromo-2-chlorobenzoic acid bromination device according to claim 2, characterized in that: A motor (11) is fixedly connected to the top of the first gas collection hood (7). The output end of the motor (11) is fixedly connected to a drive shaft (12) that is rotatably connected to the first gas collection hood (7). A stirring element (13) is rotatably connected to the top of the bromination tank (4) through a bearing. The stirring part of the stirring element (13) is located inside the bromination tank (4). A spline shaft (14) is fixedly connected to the top of the stirring element (13). The spline shaft (14) is inserted into the bottom end of the drive shaft (12).

4. The leak-proof 5-bromo-2-chlorobenzoic acid bromination apparatus according to claim 3, characterized in that: The bottom end of the drive shaft (12) is provided with a spline groove (15) that is compatible with the spline shaft (14), and the spline shaft (14) is inserted into the spline groove (15).

5. The leak-proof 5-bromo-2-chlorobenzoic acid bromination device according to claim 4, characterized in that: The bottom of the first gas collecting hood (7) and the top of the second gas collecting hood (8) are both fixedly connected with O-rings (16), and the two O-rings (16) are respectively attached to the top surface of the top plate (2) and the bottom surface of the bottom plate (3).

6. The leak-proof 5-bromo-2-chlorobenzoic acid bromination apparatus according to claim 5, characterized in that: The top and bottom of the bromination tank (4) are fixedly connected with a number of circumferentially arrayed pins (17), and the number of pins (17) are respectively inserted into the bottom surface of the top plate (2) and the top surface of the bottom plate (3).

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