Reduction cooling tower for cyclohexylamine production

Abstract

The utility model belongs to the technical field of chemical equipment, and particularly relates to a reduction cooling tower for cyclohexylamine production, which comprises a tower body, the bottom of the tower body is fixedly connected with a water storage base, a cylinder is fixed at the center of the upper part of the water storage base, the cylinder extends into the tower body, and the outer wall of the cylinder is fixedly connected with a guide plate. A drainage hole is formed in the guide plate, a material pipeline is arranged on the tower body below the guide plate, two ends of the material pipeline are respectively communicated with a feeding hole in the outer wall of the tower body and a discharging hole in the outer wall of the tower body, a spraying barrel is fixedly connected to the top of the tower body, and a protective cover is arranged at the top of the spraying barrel. According to the cooling tower, the ventilation mechanism, the spraying mechanism and the flow guide mechanism are arranged in the cooling tower, cooling in the cooling tower can be achieved through evenly-flowing water drops, meanwhile, the condensation pipe is installed in the cooling tower, materials in the material pipeline can be effectively cooled, and the problem that at the present stage, the condensation effect of the cooling tower is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a reduction cooling tower used for cyclohexylamine production. Background Art

[0002] Cyclohexylamine is an important chemical raw material and fine chemical intermediate, which is used to synthesize desulfurizers, corrosion inhibitors, vulcanization accelerators, emulsifiers, antistatic agents, latex coagulants, petroleum product additives, corrosion inhibitors, etc. Because aniline is catalyzed under high temperature and high pressure, it has the advantages of simple process, easy operation, high safety, easy raw material availability, stable quality, etc., so it is currently the most commonly used cyclohexylamine synthesis method in China. In the production and processing of cyclohexylamine, a reduction cooling tower is required. The material after hydrogenation reaction is cooled by a reduction cooling tower and then gas separation is carried out. After separation, the gas enters the hydrogen heat exchanger and returns to the reaction system to participate in the reaction. This process requires the use of a reduction cooling tower for cooling the material. The current cooling tower design is simple, and the material and gas are often cooled by a spray device and a fan. The cooling effect is not perfect. After cooling by the cooling tower, there is often an incomplete cold cut, which affects the process level and then affects the processing and use of cyclohexylamine. There are certain deficiencies, so it needs to be improved. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a reduction cooling tower for cyclohexylamine production. By arranging ventilation, spraying and diversion mechanisms in the cooling tower, the temperature in the cooling tower can be reduced by evenly flowing water droplets. At the same time, a condenser is installed in the cooling tower to achieve effective cooling of materials in the material pipeline, thus solving the problem of poor condensation effect of the cooling tower at this stage.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A reduction cooling tower for cyclohexylamine production comprises a tower body, wherein the bottom of the tower body is fixedly connected to a water storage base, a cylinder is fixed at the upper center of the water storage base, the cylinder extends into the tower body, and a guide plate is fixedly connected to the outer wall of the cylinder, drainage holes are provided on the guide plate, a material pipeline is arranged below the guide plate on the tower body, and both ends of the material pipeline are respectively connected to a feed port and a discharge port on the outer wall of the tower body, a spray barrel is fixedly connected to the top of the tower body, and a protective cover is arranged on the top of the spray barrel.

[0008] Furthermore, a circular seat is fixed on the outer wall of the cylinder, and a condenser is installed on the circular seat.

[0009] Furthermore, a plurality of partitions distributed in a circular array are fixed to the upper surface of the guide plate.

[0010] Furthermore, a main water pipe is fixed on the inner side of the spray cylinder, the main water pipe is connected to the water inlet on one side of the spray cylinder, and a plurality of branch pipes are connected to the main water pipe, and spray heads are arranged on the lower surfaces of the main water pipe and the branch pipes.

[0011] Furthermore, a mounting frame is fixedly connected to the inner side of the protective cover, and a motor is mounted on the mounting frame, and a fan is arranged at the bottom of the motor output shaft.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a reduction cooling tower for cyclohexylamine production, which has the following beneficial effects:

[0014] The utility model installs a guide plate in the tower body, and the guide plate can realize the function of guiding cooling water, and sprays the cooling water evenly in the tower body. By installing a main water pipe and a branch pipe in the spray barrel, the cooling water can be evenly sprayed in the tower body. By installing a fan on the protective cover, the effect of air circulation can be formed to reduce the temperature in the tower body, and then the material is quickly cooled and cooled by cold wind and cooling water. By installing a condenser in the tower body, the tower body can be quickly cooled and the temperature in the tower body can be reduced. When in use, the material is transported and moved in the material pipeline. During the transportation and movement, the material is cooled and cooled by the low temperature environment in the tower body, and the gas is cooled and separated, and the efficiency is high and the cooling effect is perfect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model after assembly.

[0017] In the figure: 1. tower body; 2. feed inlet; 3. guide plate; 4. partition; 5. drainage hole; 6. material pipeline; 7. water storage base; 8. cylinder; 9. condenser; 10. discharge port; 11. spray barrel; 12. protective cover; 13. fan; 14. motor; 15. main water pipe; 16. branch pipe. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example

[0020] like Figure 1 and Figure 2 As shown, a reduction cooling tower for cyclohexylamine production proposed in one embodiment of the utility model includes a tower body 1, a water storage base 7 is fixedly connected to the bottom of the tower body 1, a cylinder 8 is fixed at the upper center of the water storage base 7, the cylinder 8 extends into the tower body 1, and a guide plate 3 is fixedly connected to the outer wall of the cylinder 8, a drainage hole 5 is opened on the guide plate 3, a material pipeline 6 is arranged below the guide plate 3 on the tower body 1, and both ends of the material pipeline 6 are respectively connected to the feed port 2 and the discharge port 10 of the outer wall of the tower body 1, a spray barrel 11 is fixedly connected to the top of the tower body 1, and a protective cover 12 is arranged on the top of the spray barrel 11.

[0021] It should be noted that: by arranging a water storage base 7 at the bottom of the tower body 1, the water storage base 7 can play a role in supporting the bottom of the tower body 1, and can realize the storage of cooling water; by fixing a cylinder 8 at the center of the water storage base 7, the cylinder 8 extends into the tower body 1, and a guide plate 3 is fixed between the cylinder 8 and the tower body 1, the guide plate 3 can realize the diversion of cooling water by means of drainage holes 5, so that the cooling water is evenly sprayed in the tower body 1, thereby increasing the cooling effect; by arranging a material pipeline 6 below the guide plate 3 on the tower body 1, the material pipeline 6 can realize the flow of materials, and the materials circulate inside the tower body 1, and the gas is cooled by the low temperature environment in the tower body 1; by fixing a spray barrel 11 on the top of the tower body 1, the spray barrel 11 can realize the uniform spraying of cooling water, and the protective cover 12 can realize the protective effect of the upper part of the tower body 1.

[0022] like Figure 1 As shown, in some embodiments, a circular seat is fixed on the outer wall of the cylinder 8, and a condenser tube 9 is installed on the circular seat.

[0023] It should be noted that: in actual use, the condenser tube 9 can be used to increase the refrigeration effect of the internal environment of the tower body 1. The use of the condenser tube 9 is a known prior art and will not be described in detail.

[0024] like Figure 1 As shown, in some embodiments, a plurality of partitions 4 distributed in a circular array are fixed to the upper surface of the guide plate 3 .

[0025] It should be noted that the provision of the partition 4 can achieve the function of water flow separation, so that the cooling water is discharged evenly.

[0026] like Figure 1 As shown, in some embodiments, a main water pipe 15 is fixed to the inner side of the spray cylinder 11, the main water pipe 15 is connected to the water inlet on one side of the spray cylinder 11, and a plurality of branch pipes 16 are connected to the main water pipe 15, and spray heads are provided on the lower surfaces of the main water pipe 15 and the branch pipes 16.

[0027] It should be noted that the main water pipe 15 can discharge external cooling water into the spray barrel 11, discharge it through the branch pipe 16, and evenly spray the cooling water into the tower body 1 through the spray head.

[0028] like Figure 1 As shown, in some embodiments, a mounting frame is fixedly connected to the inner side of the protective cover 12, and a motor 14 is mounted on the mounting frame. A fan 13 is provided at the bottom of the output shaft of the motor 14.

[0029] It should be noted that the fan 13 can increase the circulation of air in the tower body 1 , and the circulating air can be used to cool down the area near the cooling water, thereby effectively increasing the cooling effect of the internal environment of the tower body 1 .

[0030] The working principle and use steps of the utility model are as follows: when in use, the material enters the material pipeline 6 through the feed port 2. When the material enters the material pipeline 6, the material and gas can be cooled by the cooling environment inside the tower body 1. A condenser 9 is installed in the tower body 1. The condenser 9 can optimize the refrigeration effect in the tower body 1. When in use, the main water pipe 15 and the branch pipe 16 spray cooling water to the inner side of the tower body 1. The tower body 1 guides the cooling water through the guide plate 3. At the same time, the fan 13 works to cool the area near the cooling water, continue to lower the environment in the tower body 1, and realize rapid cooling of the material in the material pipeline 6. The cooled gas can be discharged through the discharge port 10.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A reduction cooling tower for cyclohexylamine production, comprising a tower body (1), characterized in that: The bottom of the tower body (1) is fixedly connected to a water storage base (7), a cylinder (8) is fixed at the center of the upper part of the water storage base (7), the cylinder (8) extends into the tower body (1), and a guide plate (3) is fixedly connected to the outer wall of the cylinder (8), a drainage hole (5) is provided on the guide plate (3), a material pipeline (6) is arranged below the guide plate (3) of the tower body (1), two ends of the material pipeline (6) are respectively connected to a feed port (2) on the outer wall of the tower body (1) and a discharge port (10) on the outer wall of the tower body (1), a spray barrel (11) is fixedly connected to the top of the tower body (1), and a protective cover (12) is arranged on the top of the spray barrel (11).

2. A reduction cooling tower for cyclohexylamine production according to claim 1, characterized in that: A circular seat is fixed on the outer wall of the cylinder (8), and a condenser tube (9) is installed on the circular seat.

3. A reduction cooling tower for cyclohexylamine production according to claim 1, characterized in that: A plurality of partitions (4) distributed in a circular array are fixed to the upper surface of the guide plate (3).

4. A reduction cooling tower for cyclohexylamine production according to claim 1, characterized in that: A main water pipe (15) is fixed inside the spray barrel (11), the main water pipe (15) is connected to a water inlet on one side of the spray barrel (11), and a plurality of branch pipes (16) are connected to the main water pipe (15), and spray heads are arranged on the lower surfaces of the main water pipe (15) and the branch pipes (16).

5. A reduction cooling tower for cyclohexylamine production according to claim 1, characterized in that: A mounting frame is fixedly connected to the inner side of the protective cover (12), and a motor (14) is mounted on the mounting frame. A fan (13) is arranged at the bottom of the output shaft of the motor (14).

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