Reaction liquid cooling device for preparing hydroquinone

Abstract

The utility model discloses a reaction liquid cooling device for preparing hydroquinone, which comprises a cooling device shell, an air cooling tank and a water cooling tank are arranged in the cooling device shell, a liquid storage kettle is fixedly connected between the inner walls of the air cooling tank and between the inner walls of the cooling device shell, and the liquid storage kettle penetrates through the inner walls of the air cooling tank. Hydroquinone reaction liquid is introduced into the liquid storage kettle through the liquid inlet in the top end of the liquid inlet pipe, then external air is driven by the air cooling assembly to enter the air cooling groove, the liquid storage kettle is continuously cooled and output, the reaction liquid in the liquid storage kettle is primarily cooled, and meanwhile hot air generated outside the liquid storage kettle is discharged through the heat dissipation holes. The bottom of the liquid storage kettle is further cooled through the water cooling assembly, so that the reaction liquid is rapidly cooled, and the cooled reaction liquid flows to the liquid outlet of the liquid outlet pipe through the connecting pipeline and is discharged, so that the cooling time of the hydroquinone reaction liquid is shortened, the cooling efficiency is improved, and the preparation efficiency of hydroquinone is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydroquinone preparation, in particular to a reaction liquid cooling device for hydroquinone preparation. Background Technique

[0002] Hydroquinone, also known as benzenediol or benzenequinone diol, is an aromatic organic compound with the chemical formula C6H6O2 and contains two hydroxyl groups (-OH) in its structure. Hydroquinone is a white solid and is crystalline at room temperature. It is usually used as an antioxidant, developer, dye intermediate, and rubber additive, etc. The preparation process of hydroquinone requires strict control of reaction conditions, catalyst selection, and reaction kinetic conditions to ensure efficient reaction, high yield, and good product quality. At the same time, hydroquinone belongs to dangerous chemicals, and safety protection measures need to be taken during operation.

[0003] In the traditional hydroquinone preparation process, usually a single cooling device is used to cool the reaction liquid. However, this cooling method has a too long cooling time, resulting in an extended subsequent hydroquinone preparation time, thereby reducing the preparation efficiency. In addition, this traditional cooling method requires the reaction liquid to be taken out for separate cooling, and during this process, since the reaction liquid contains toxins, it may cause certain harm to the health of operators. Therefore, we propose a reaction liquid cooling device for hydroquinone preparation. Content of the Utility Model

[0004] The purpose of the utility model is to provide a reaction liquid cooling device for hydroquinone preparation to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A reaction liquid cooling device for hydroquinone preparation, including a cooling device housing. An air cooling tank and a water cooling tank are opened inside the cooling device housing. A liquid storage kettle is fixedly connected between the inner walls of the air cooling tank and located between the inner walls of the cooling device housing. The liquid storage kettle penetrates to between the inner walls of the air cooling tank. A connecting pipe is fixedly connected between the outer side of the liquid storage kettle and the inner wall of the water cooling tank. One end of the connecting pipe communicates with the inside of the liquid storage kettle. The top of the cooling device housing is fixedly connected with a liquid inlet pipe. The bottom end of the liquid inlet pipe extends to the inside of the air cooling tank and is fixedly connected with the top of the liquid storage kettle. The bottom end of the liquid inlet pipe communicates with the inside of the liquid storage kettle. The top of the liquid inlet pipe is provided with a liquid inlet. One side of the cooling device housing is fixedly connected with a liquid outlet pipe. One end of the liquid outlet pipe extends to the inside of the water cooling tank and is fixedly connected with the connecting pipe. One end of the liquid outlet pipe is provided with a liquid outlet. An air cooling component is arranged on the top of the cooling device housing, and a water cooling component is arranged on the outside of the cooling device housing.

[0006] As a further preference of the present technical solution, the air-cooling component includes two installation grooves, both of the two installation grooves are opened at the top of the cooling device housing, both of the two installation grooves communicate with the inside of the air-cooling groove, a mounting plate is fixedly connected between the inner walls of the two installation grooves, and a fan blade is rotatably connected to the bottom of each of the two mounting plates.

[0007] As a further preference of the present technical solution, the water-cooling component includes a water storage tank, a water supply pipe and a water return pipe are respectively fixedly connected to the two sides of the water storage tank and the two sides of the cooling device housing, both ends of the water supply pipe and the water return pipe communicate with the inside of the water storage tank and the water-cooling groove, and one end of the water supply pipe extends into the inside of the water storage tank.

[0008] As a further preference of the present technical solution, servo motors are fixedly installed on the tops of the two mounting plates and on the top of the cooling device housing, and the output ends of the two servo motors respectively pass through the two mounting plates and are fixedly connected to the two fan blades.

[0009] As a further preference of the present technical solution, a water pump is fixedly installed between the inner walls of the water storage tank, and the output end of the water pump is fixedly connected to the extended end of the water supply pipe.

[0010] As a further preference of the present technical solution, heat dissipation holes are opened on both sides of the cooling device housing, and the heat dissipation holes communicate with the inside of the air-cooling groove.

[0011] As a further preference of the present technical solution, a control valve is fixedly connected to the outside of the liquid outlet pipe.

[0012] The utility model provides a reaction liquid cooling device for hydroquinone preparation, which has the following beneficial effects:

[0013] (1) In the utility model, the hydroquinone reaction liquid is introduced into the liquid storage kettle through the liquid inlet at the top end of the liquid inlet pipe, and then the air-cooling component drives the external air to enter the inside of the air-cooling groove, continuously cools and outputs the liquid storage kettle, so that the reaction liquid inside the liquid storage kettle is preliminarily cooled. At the same time, the hot air generated outside the liquid storage kettle is discharged through the heat dissipation holes, and then the water-cooling component further cools the bottom of the liquid storage kettle, so that the reaction liquid is quickly cooled. The cooled reaction liquid flows through the connecting pipe to the liquid outlet of the liquid outlet pipe and is discharged, thereby shortening the cooling time of the hydroquinone reaction liquid, improving the cooling efficiency, and further improving the preparation efficiency of hydroquinone.

[0014] (2) By cooling the hydroquinone reaction liquid inside the cooling device housing, the utility model effectively avoids the generation of harmful gases due to the contact between the hydroquinone reaction liquid and air, thereby ensuring the personal safety of the operator and further reducing environmental pollution. Description of the Drawings

[0015] Figure 1 Schematic three-dimensional structure diagram of the present utility model;

[0016] Figure 2 Schematic three-dimensional semi-sectional structure diagram of the present utility model;

[0017] Figure 3 Schematic structure diagram of the cooling device housing of the present utility model;

[0018] Figure 4 Schematic structure diagram of the air-cooling component of the present utility model;

[0019] In the figure: 1. Cooling device housing; 2. Liquid inlet pipe; 3. Liquid inlet; 4. Liquid outlet pipe; 5. Control valve; 6. Water storage tank; 7. Water supply pipe; 8. Heat dissipation holes; 9. Servo motor; 10. Mounting plate; 11. Air-cooling groove; 12. Water-cooling groove; 13. Liquid outlet; 14. Liquid storage kettle; 15. Water pump; 16. Mounting groove; 17. Return water pipe; 18. Fan blades; 19. Connecting pipe. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0021] The present utility model provides a technical solution: As Figures 1 - 4 shown, in this embodiment, a reaction liquid cooling device for hydroquinone preparation includes a cooling device housing 1. An air-cooling groove 11 and a water-cooling groove 12 are provided inside the cooling device housing 1. A liquid storage kettle 14 is fixedly connected between the inner walls of the air-cooling groove 11 and located between the inner walls of the cooling device housing 1. The liquid storage kettle 14 penetrates to between the inner walls of the air-cooling groove 11. A connecting pipe 19 is fixedly connected between the outer side of the liquid storage kettle 14 and the inner wall of the water-cooling groove 12. One end of the connecting pipe 19 communicates with the inside of the liquid storage kettle 14. A liquid inlet pipe 2 is fixedly connected to the top of the cooling device housing 1. The bottom end of the liquid inlet pipe 2 extends into the air-cooling groove 11 and is fixedly connected to the top of the liquid storage kettle 14. The bottom end of the liquid inlet pipe 2 communicates with the inside of the liquid storage kettle 14. A liquid inlet 3 is provided at the top of the liquid inlet pipe 2. A liquid outlet pipe 4 is fixedly connected to one side of the cooling device housing 1. One end of the liquid outlet pipe 4 extends into the water-cooling groove 12 and is fixedly connected to the connecting pipe 19. A liquid outlet 13 is provided at one end of the liquid outlet pipe 4. An air-cooling component is provided on the top of the cooling device housing 1. A water-cooling component is provided on the outside of the cooling device housing 1. Heat dissipation holes 8 are provided on both sides of the cooling device housing 1. The heat dissipation holes 8 communicate with the inside of the air-cooling groove 11. A control valve 5 is fixedly connected to the outside of the liquid outlet pipe 4.

[0022] When the hydroquinone reaction liquid is cooled by the reaction liquid cooling device, first, the hydroquinone reaction liquid enters the interior of the liquid storage kettle 14 through the liquid inlet 3 at the top of the liquid inlet pipe 2. Then, the air cooling component drives the air outside the cooling device housing 1 into the interior of the air cooling tank 11 and continuously outputs it to the outside of the liquid storage kettle 14. The hot air generated outside the liquid storage kettle 14 is discharged outward through the heat dissipation holes 8, so that the hydroquinone reaction liquid is preliminarily cooled. Then, the water cooling component drives the cooling water to circulate inside the water cooling tank 12, so that the hydroquinone reaction liquid inside the liquid storage kettle 14 is further cooled. The fully cooled hydroquinone reaction liquid is discharged from the liquid outlet 13 through the connecting pipe 19 and the liquid outlet pipe 4. Then, the flow rate of the hydroquinone reaction liquid is adjusted by the control valve 5, thereby further improving the preparation efficiency of hydroquinone.

[0023] As Figures 1 - 4 shown, the air cooling component includes two mounting grooves 16. Both of the two mounting grooves 16 are opened at the top of the cooling device housing 1. Both of the two mounting grooves 16 communicate with the interior of the air cooling tank 11. A mounting plate 10 is fixedly connected between the inner walls of the two mounting grooves 16. A fan blade 18 is rotatably connected to the bottom of both of the two mounting plates 10. A servo motor 9 is fixedly installed at the top of both of the two mounting plates 10 and on the top of the cooling device housing 1. The output ends of the two servo motors 9 respectively pass through the two mounting plates 10 and are fixedly connected to the two fan blades 18.

[0024] The two servo motors 9 at the top of the two mounting plates 10 respectively drive the two fan blades 18 to rotate between the inner walls of the mounting grooves 16, thereby driving the air outside the cooling device housing 1 into the interior of the air cooling tank 11, and then preliminarily cooling the hydroquinone reaction liquid, further improving the cooling efficiency of the hydroquinone reaction liquid.

[0025] As Figures 1 - 4 shown, the water cooling component includes a water storage tank 6. A water supply pipe 7 and a return pipe 17 are respectively fixedly connected to the two sides of the water storage tank 6 and the two sides of the cooling device housing 1. Both ends of the water supply pipe 7 and the return pipe 17 communicate with the interior of the water storage tank 6 and the water cooling tank 12. One end of the water supply pipe 7 extends into the interior of the water storage tank 6. A water pump 15 is fixedly installed between the inner walls of the water storage tank 6. The output end of the water pump 15 is fixedly connected to the extended end of the water supply pipe 7.

[0026] The water pump 15 inside the water storage tank 6 introduces the cooling water into the interior of the water cooling tank 12 along the water supply pipe 7, and then the heated cooling water is re-introduced into the interior of the water storage tank 6 through the return pipe 17, thereby achieving the effect of circulating water cooling for the liquid storage kettle 14 and further improving the cooling efficiency of the hydroquinone reaction liquid.

[0027] The utility model provides a reaction liquid cooling device for hydroquinone preparation, and the specific working principle is as follows: When the reaction liquid cooling device cools the hydroquinone reaction liquid, first, the hydroquinone reaction liquid enters the interior of the liquid storage kettle 14 through the liquid inlet 3 at the top of the liquid inlet pipe 2. Then, two servo motors 9 at the top of two mounting plates 10 respectively drive two fan blades 18 to rotate between the inner walls of the mounting grooves 16, so as to drive the air outside the cooling device housing 1 into the air cooling tank 11 and continuously output to the outside of the liquid storage kettle 14. The hot air generated outside the liquid storage kettle 14 is discharged outwards through the heat dissipation holes 8, so that the hydroquinone reaction liquid is preliminarily cooled. Then, the water pump 15 in the water storage tank 6 conducts the cooling water into the water cooling tank 12 along the water supply pipe 7, and then the heated cooling water is re-introduced into the water storage tank 6 through the water return pipe 17, so as to drive the cooling water to circulate in the water cooling tank 12, further cooling the hydroquinone reaction liquid inside the liquid storage kettle 14. The fully cooled hydroquinone reaction liquid is discharged from the liquid outlet 13 through the connecting pipe 19 and the liquid outlet pipe 4, and then the flow rate of the hydroquinone reaction liquid is adjusted through the throttle valve 5.

[0028] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A reaction liquid cooling device for the preparation of hydroquinone, comprising a cooling device housing (1), characterized in that: An air-cooling groove (11) and a water-cooling groove (12) are formed inside the cooling device housing (1). A liquid storage kettle (14) is fixedly connected between the inner walls of the air-cooling groove (11) and also between the inner walls of the cooling device housing (1). The liquid storage kettle (14) penetrates between the inner walls of the air-cooling groove (11). A connecting pipe (19) is fixedly connected between the outer side of the liquid storage kettle (14) and the inner wall of the water-cooling groove (12). One end of the connecting pipe (19) communicates with the inside of the liquid storage kettle (14). A liquid inlet pipe (2) is fixedly connected to the top of the cooling device housing (1). The bottom end of the liquid inlet pipe (2) extends into the air-cooling groove (11) and is fixedly connected to the top of the liquid storage kettle (14). The bottom end of the liquid inlet pipe (2) communicates with the inside of the liquid storage kettle (14). A liquid inlet (3) is formed at the top of the liquid inlet pipe (2). A liquid outlet pipe (4) is fixedly connected to one side of the cooling device housing (1). One end of the liquid outlet pipe (4) extends into the water-cooling groove (12) and is fixedly connected to the connecting pipe (19). A liquid outlet (13) is formed at one end of the liquid outlet pipe (4). An air-cooling component is arranged on the top of the cooling device housing (1), and a water-cooling component is arranged on the outer side of the cooling device housing (1).

2. The reaction liquid cooling device for hydroquinone preparation according to claim 1, characterized in that: The air-cooling component includes two mounting grooves (16). Both of the two mounting grooves (16) are formed on the top of the cooling device housing (1). Both of the two mounting grooves (16) communicate with the inside of the air-cooling groove (11). Mounting plates (10) are fixedly connected between the inner walls of both of the two mounting grooves (16). Fan blades (18) are rotatably connected to the bottoms of both of the two mounting plates (10).

3. The reaction liquid cooling device for hydroquinone preparation according to claim 1, characterized in that: The water-cooling component includes a water storage tank (6). A water supply pipe (7) and a water return pipe (17) are respectively and fixedly connected between the two sides of the water storage tank (6) and the two sides of the cooling device housing (1). Both ends of the water supply pipe (7) and the water return pipe (17) communicate with the inside of the water storage tank (6) and the water-cooling groove (12). One end of the water supply pipe (7) extends into the water storage tank (6).

4. The reaction liquid cooling device for hydroquinone preparation according to claim 2, wherein: Servo motors (9) are fixedly installed on the tops of both of the two mounting plates (10) and on the top of the cooling device housing (1). The output ends of both of the two servo motors (9) respectively pass through the two mounting plates (10) and are fixedly connected to the two fan blades (18).

5. The reaction liquid cooling device for hydroquinone preparation according to claim 3, wherein: A water pump (15) is fixedly installed between the inner walls of the water storage tank (6). The output end of the water pump (15) is fixedly connected to the extending end of the water supply pipe (7).

6. The reaction liquid cooling device for hydroquinone preparation according to claim 1, wherein: Heat dissipation holes (8) are formed on both sides of the cooling device housing (1). The heat dissipation holes (8) communicate with the inside of the air-cooling groove (11).

7. A reaction liquid cooling device for the preparation of hydroquinone according to claim 1, characterized in that: A control valve (5) is fixedly connected to the outer side of the liquid outlet pipe (4).

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