Automatic tower constant temperature adjusting device of bromobenzene reaction device

Abstract

The utility model discloses a bromobenzene reaction device tower constant temperature automatic adjusting device which comprises a rectifying still, a water layer is arranged on the outer surface of the rectifying still, a steam layer is arranged on the outer surface of the water layer, and a steam pipeline is communicated with the center of the outer surface of one side of the steam layer. A water inlet short pipe is communicated with the top of the water layer close to the edge of one end. According to the utility model, during the reaction of p-bromobenzene, generated gas is condensed by the condenser, so that materials in the gas can be better condensed, and the condensed materials can be better refluxed into the rectifying still through the reflux pipeline, so that the materials can be better reacted; meanwhile, when the temperature of the tower top is controlled, the condensation effect of the condenser is adjusted, so that the temperature of the material flowing back into the rectifying still is changed, the temperature of the rectifying still can be better controlled, and meanwhile, the temperature of the tower top of the rectifying still can be better controlled.

Description

Technical Field

[0001] This utility model relates to the technical field of bromobenzene reaction apparatus, and in particular to an automatic temperature regulating device for the tower of a bromobenzene reaction apparatus. Background Technology

[0002] The bromobenzene reaction tower is used to better separate the gas phase during the reaction of bromobenzene, thereby improving the purity of the product and increasing the production efficiency of the manufacturer.

[0003] In existing bromobenzene reaction towers, the temperature at the top of the tower is controlled by regulating the steam flow. However, controlling the temperature of steam is extremely difficult, leading to instability at the top of the tower. This results in incomplete gas-phase separation, causing the purity of the produced product to fail to meet standards and reducing the production efficiency of the manufacturer. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic temperature control device for the tower of a bromobenzene reaction apparatus.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic temperature regulating device for a bromobenzene reaction apparatus, comprising a distillation kettle, a water layer on the outer surface of the distillation kettle, a steam layer on the outer surface of the water layer, a steam pipe connected to the center of one side of the outer surface of the steam layer, a short inlet pipe connected to the top of the water layer near one edge, a short outlet pipe connected to the bottom of the water layer near one edge, a base welded to the bottom of the distillation kettle, a distillation column connected to the center of the top of the distillation kettle, a thermometer installed at the center of the top of the distillation column, a gas valve installed at the top of the gas pipe, a fixing plate horizontally installed at the center of one side of the outer surface of the distillation column, a condenser fixed at the center of the top of the fixing plate, a gas pipe connected to the top of the distillation column near one edge, one end of the gas pipe connected to the top of the condenser, and a reflux pipe connected to the center of the bottom of the condenser.

[0006] As a further description of the above technical solution:

[0007] A steam valve is installed at the top of the steam pipe near one end edge.

[0008] As a further description of the above technical solution:

[0009] One end of the steam pipeline is connected to a heating medium delivery pump via a flange.

[0010] As a further description of the above technical solution:

[0011] A steam delivery pipe is connected to one side of the outer surface of the heating medium delivery pump.

[0012] As a further description of the above technical solution:

[0013] Turbines are fixed to the inner surfaces of the upper and lower sides of the water layer near the edges at both ends.

[0014] As a further description of the above technical solution:

[0015] One end of the reflux pipe extends into the interior of the distillation vessel.

[0016] As a further description of the above technical solution:

[0017] A sight glass is provided on the front surface of the return pipe near the top edge, and a return valve is provided on the bottom of the front surface of the return pipe near the sight glass.

[0018] As a further description of the above technical solution:

[0019] The outer surfaces of both the steam pipes and the steam transmission pipes are covered with a protective layer.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0021] 1. In this utility model, the top of the distillation column is connected to a gas pipeline. When bromobenzene is reacted, the gas produced is condensed by a condenser, which can better condense the material in the gas. The condensed material can be returned to the inside of the distillation kettle through a reflux pipeline, which can better save resources and allow the material to react better. At the same time, when controlling the temperature at the top of the column, the condensation effect of the condenser is adjusted to change the temperature of the material returning to the inside of the distillation kettle, thereby better controlling the temperature of the distillation kettle and the top temperature of the distillation column.

[0022] 2: In this utility model, by adopting water bath heating, the internal temperature of the distillation kettle can be better controlled. Since the distillation column and the distillation kettle are connected, the top temperature of the distillation column can be better controlled. Water bath heating can better control the temperature, so that the purity of the produced product can better meet the standards. Attached Figure Description

[0023] Figure 1 This is a front view of an automatic temperature control device for a bromobenzene reaction apparatus according to the present invention.

[0024] Figure 2 This is a front view of the heating medium delivery pump section of the automatic temperature regulating device for a bromobenzene reaction apparatus, as proposed in this utility model.

[0025] Figure 3 This is a cross-sectional view of the distillation kettle of an automatic temperature regulating device for a bromobenzene reaction apparatus proposed in this utility model.

[0026] In the diagram: 1. Base; 2. Steam pipe; 3. Distillation kettle; 4. Reflux pipe; 5. Reflux valve; 6. Sight glass; 7. Fixing plate; 8. Condenser; 9. Gas pipe; 10. Gas valve; 11. Thermometer; 12. Distillation column; 13. Inlet water pipe; 14. Steam layer; 15. Water layer; 16. Outlet water pipe; 17. Protective layer; 18. Steam valve; 19. Flange; 20. Heating medium transfer pump; 21. Steam transfer pipe; 22. Turbine. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figure 1-3This utility model provides an embodiment of an automatic temperature regulating device for a bromobenzene reaction apparatus, comprising a distillation kettle 3, a water layer 15 on the outer surface of the distillation kettle 3, a steam layer 14 on the outer surface of the water layer 15, a steam pipe 2 connected to the center of one side of the outer surface of the steam layer 14, a water inlet pipe 13 connected to the top of the water layer 15 near one edge, and a water outlet pipe 16 connected to the bottom of the water layer 15 near one edge. A base 1 is welded to the bottom of the distillation kettle 3, a distillation column 12 is connected to the center of the top of the distillation kettle 3, a thermometer 11 is installed at the center of the top of the distillation column 12, a gas valve 10 is installed at the top of a gas pipe 9, a fixing plate 7 is horizontally installed at the center of one side of the outer surface of the distillation column 12, a condenser 8 is fixed at the center of the top of the fixing plate 7, a gas pipe 9 is connected to the top of the distillation column 12 near one edge, and one end of the gas pipe 9 is connected to the top of the condenser 8. A reflux pipe 4 is connected to the center of the bottom of the condenser 8. The top of the distillation column 12 is connected to the gas pipeline 9. During the reaction of bromobenzene, the generated gas is condensed by the condenser 8, which allows for better condensation of the material in the gas. The condensed material is then returned to the interior of the distillation vessel 3 through the reflux pipeline 4, thus saving resources and allowing the material to react more effectively. Simultaneously, the temperature at the top of the column is controlled by adjusting the condensation effect of the condenser 8, causing a change in the temperature of the material returning to the distillation vessel 3. This allows for better control of the temperature of the distillation vessel 3 and the top temperature of the distillation column 12. Using a water bath for heating further enhances the control of the internal temperature of the distillation vessel 3. Because the distillation column 12 is connected to the distillation vessel 3, the top temperature of the distillation column 12 can be better controlled. Water bath heating further improves temperature control, ensuring that the purity of the produced product meets the standards.

[0029] A steam valve 18 is installed at the top of the steam pipe 2 near one edge. One end of the steam pipe 2 is connected to a heating medium transfer pump 20 via a flange 19. The heating medium transfer pump 20 is an NYP high-viscosity pump. A steam transfer pipe 21 is connected to one side of the outer surface of the heating medium transfer pump 20. The steam valve 18 allows for better control of the steam transfer rate, thereby better control of the internal temperature of the distillation kettle 3 and the top temperature of the distillation column 12. Turbines 22 are fixed to the inner walls of the upper and lower sides of the water layer 15 near both edges. When the water is heated, a certain flow rate is generated. The turbine 22 rotates, causing the water to move back and forth, thus making the temperature in the water layer 15 uniform. This allows for better control of the top temperature of the distillation column 12 during use. One end of the reflux pipe 4 extends into the interior of the distillation kettle 3. A sight glass 6 is installed on the front surface of the reflux pipe 4 near the top edge, allowing for better observation of the condensed liquid. A reflux valve 5 is installed on the front surface of the reflux pipe 4 near the bottom of the sight glass 6. The outer surfaces of the steam pipe 2 and the steam delivery pipe 21 are both covered with a protective layer 17 for better protection.

[0030] Working Principle: When bromobenzene reacts, steam is transported by heating medium pump 20 and delivered to the interior of steam layer 14 through steam pipe 2, thereby better heating water layer 15. Water bath heating allows for better control of the temperature inside distillation vessel 3. During the reaction of bromobenzene, the generated gas passes through gas pipe 9 and condenser 8, which condenses the gas into liquid. The liquid then flows back into distillation vessel 3 through reflux pipe 4, ensuring a more complete reaction. The condensation effect can be better observed through sight glass 6. When controlling the temperature at the top of the column, the condensation effect of condenser 8 is adjusted to change the temperature of the condensed liquid. The condensed liquid flows back into distillation vessel 3, further altering the temperature inside the vessel and thus better controlling the temperature at the top of distillation column 12. Water bath heating further enhances the control of the top temperature, ensuring that the purity of the produced product meets the requirements.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic temperature control device for a bromobenzene reaction apparatus, comprising a distillation kettle (3) and a gas pipeline (9), characterized in that: A water layer (15) is provided on the outer surface of the distillation vessel (3), and a steam layer (14) is provided on the outer surface of the water layer (15). A steam pipe (2) is connected to the center of one side of the outer surface of the steam layer (14). A short inlet pipe (13) is connected to the top of the water layer (15) near one end edge, and a short outlet pipe (16) is connected to the bottom of the water layer (15) near one end edge. A base (1) is welded to the bottom of the distillation vessel (3), and a distillation column (12) is connected to the center of the top of the distillation vessel (3). A thermometer (11) is installed at the top center of the distillation column (12), a gas valve (10) is installed at the top of the gas pipe (9), a fixing plate (7) is installed at the center of the outer surface of one side of the distillation column (12) in the horizontal direction, a condenser (8) is fixed at the top center of the fixing plate (7), a gas pipe (9) is connected to the top of the distillation column (12) near one side edge, and one end of the gas pipe (9) is connected to the top of the condenser (8), and a reflux pipe (4) is connected to the bottom center of the condenser (8).

2. The automatic temperature control device for the bromobenzene reaction unit according to claim 1, characterized in that: A steam valve (18) is provided at the top of the steam pipe (2) near one end edge.

3. The automatic temperature control device for the bromobenzene reaction unit according to claim 1, characterized in that: One end of the steam pipe (2) is connected to a heating medium delivery pump (20) via a flange (19).

4. The automatic temperature control device for the bromobenzene reaction unit according to claim 3, characterized in that: A steam delivery pipe (21) is connected to one side of the outer surface of the heating medium delivery pump (20).

5. The automatic temperature control device for the bromobenzene reaction unit according to claim 1, characterized in that: Turbines (22) are fixed on the inner surface walls of the upper and lower sides of the water layer (15) near the edges of both ends.

6. The automatic temperature control device for the bromobenzene reaction unit according to claim 1, characterized in that: One end of the reflux pipe (4) extends into the interior of the distillation vessel (3).

7. The automatic temperature control device for the bromobenzene reaction unit according to claim 1, characterized in that: A sight glass (6) is provided on the front surface of the return pipe (4) near the top edge, and a return valve (5) is provided on the bottom of the front surface of the return pipe (4) near the sight glass (6).

8. An automatic temperature regulating device for a bromobenzene reaction apparatus according to claim 1 or 4, characterized in that: The outer surfaces of the steam pipe (2) and the steam conveying pipe (21) are covered with a protective layer (17).

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