Cooling tank for dimerization of isobutene to isooctene

Abstract

This utility model belongs to the field of compound processing technology and discloses a cooling tank for isobutylene dimerization to generate isooctene, including a base (1), a cooling tank (2) fixedly installed on the top of the base (1), an inner tank (5) fixedly installed inside the cooling tank (2), an opening (3) extending to the top of the cooling tank (2) fixedly installed on the top of the inner tank (5), a stirring assembly (4) connected to the top of the opening (3), and a cooling assembly (6) fixedly installed inside the base (1). This utility model provides a cold source by setting a refrigerator in the cooling assembly to cool the cooling medium in the cooling tank, a circulating water pump to make the cooling medium exchange heat between the cooling pipe and the inner tank, and a return pipe with heat dissipation fins to assist in cooling, forming a high-efficiency circulating cooling system.

Description

Technical Field

[0001] This utility model belongs to the field of compound processing technology, and in particular relates to a cooling tank for isobutylene dimerization to generate isooctene. Background Technology

[0002] In the industrial production process of isobutylene dimerization to isooctene, the cooling tank, as a key piece of equipment, plays a vital role in the stable advancement of the reaction process and the control of product quality.

[0003] The reaction of isobutylene dimerization to form isooctene is an exothermic reaction. If the heat generated by the reaction is not removed in time, the system temperature will continue to rise. Excessive temperature will not only promote side reactions and generate impurities such as trimerisobutylene, reducing the selectivity and yield of isooctene, but may also lead to runaway reaction and safety hazards. The cooling tank, through its internal cooling structure, uses the principle of heat exchange to transfer the heat of reaction to the cooling medium, thereby precisely controlling the reaction temperature and maintaining it within a suitable reaction range to ensure the efficient progress of the main reaction.

[0004] Traditional isobutylene dimerization cooling tanks typically have a fixed connection between the agitator and the tank body. As production continues, the agitator is prone to wear and aging due to material erosion, chemical corrosion, and other factors. Since the agitator is fixed to the tank body, maintenance requires significant manpower and resources to dismantle parts of the tank body to access the agitator for repair or replacement. Therefore, a cooling tank for isobutylene dimerization to isooctene is proposed to address the aforementioned problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is that in traditional isobutylene dimerization cooling tanks, the stirring device and the tank body are mostly fixedly connected, making it difficult to disassemble the stirring device.

[0006] To solve the above-mentioned technical problems, the specific technical solution of this utility model is as follows:

[0007] A cooling tank for isobutylene dimerization to isooctene includes a base, a cooling tank fixedly installed on the top of the base, an inner tank fixedly installed inside the cooling tank, an opening extending to the top of the cooling tank fixedly installed on the top of the inner tank, a stirring assembly connected to the top of the opening, and a cooling assembly fixedly installed inside the base.

[0008] The stirring assembly includes a sealing cap threaded to the top surface of the opening, a stirring motor fixedly installed at the top center of the sealing cap, a stirring rod fixedly installed at the output shaft of the stirring motor, multiple stirring blades fixedly installed on the surface of the stirring rod, and a connecting pipe fixedly installed inside the sealing cap.

[0009] The cooling assembly includes a cooling box fixedly installed in the inner cavity of the base, a cooler fixedly installed inside the cooling box, a feed pipe fixedly installed on the surface of the base, a circulating water pump fixedly installed at the top of the cooling box in the inner cavity of the base, a cooling pipe fixedly installed at the outlet of the circulating water pump, a return pipe fixedly installed at the end of the cooling pipe away from the circulating water pump, and heat dissipation fins fixedly installed in the inner cavity of the base.

[0010] Preferably, the surface of the opening is provided with external threads, and the inner wall of the sealing cover is provided with internal threads that are compatible with the external threads.

[0011] Preferably, both the stirring rod and the stirring blade extend into the interior of the inner tank, and the bottom of the connecting pipe extends into the interior of the inner tank, with a valve fixedly installed on the top surface of the connecting pipe.

[0012] Preferably, the cooling pipe is a serpentine design, and the cooling pipe is wrapped around the surface of the inner tank.

[0013] Preferably, one end of the feed pipe extends into the interior of the cooling box, and a return pipe is inserted into the interior of the heat dissipation fins.

[0014] Preferably, the end of the return pipe away from the cooling pipe extends into the interior of the cooling box, and the return pipe is fixedly installed in the inner cavity of the base.

[0015] Preferably, the cooling tank, circulating water pump, cooling pipe and return pipe are interconnected.

[0016] Furthermore, after the stirring motor is started, its output shaft drives the stirring rod fixedly connected to it to rotate. Multiple stirring blades fixed on the surface of the stirring rod rotate together with the stirring rod, stirring the material in the cooling tank and making the material cool down quickly.

[0017] Furthermore, the refrigeration unit uses principles such as compression refrigeration and absorption refrigeration to cool the cooling medium inside the cooling box.

[0018] Preferably, the cooling medium in the cooling tank is water.

[0019] This utility model has the following advantages:

[0020] 1. This isobutylene dimerization cooling tank for isooctene production utilizes a cooling system with a chiller to provide a cooling source for the cooling medium inside the tank. A circulating water pump facilitates heat exchange between the cooling medium and the inner tank via the cooling pipes. A return pipe, combined with heat dissipation fins, further assists in cooling, forming a highly efficient circulating cooling system. Simultaneously, the stirring motor in the stirring assembly drives the stirring rod and blades to agitate the materials, breaking down temperature stratification, accelerating heat transfer to the cooling medium, precisely controlling the reaction temperature, preventing localized overheating, reducing side reactions, improving the selectivity and yield of isooctene, and ensuring the safe and stable progress of the reaction.

[0021] 2. The isobutylene dimerization cooling tank for isooctene has a threaded connection between the sealing cover and the opening of the stirring component. When the stirring device experiences wear or aging, the operator can easily unscrew the sealing cover and remove the stirring motor, stirring rod, and stirring blades for repair or replacement without dismantling other parts of the tank. This saves manpower and resources, shortens maintenance time, reduces losses caused by production stoppages, and effectively lowers equipment maintenance costs and production interruption costs. Attached Figure Description

[0022] Figure 1 This is a three-dimensional view of the cooling tank structure for isobutylene dimerization to isooctene according to this utility model;

[0023] Figure 2 This is a perspective view of the cooling tank and sealing cap structure of this utility model;

[0024] Figure 3 This is a three-dimensional view of the stirring assembly structure of this utility model;

[0025] Figure 4 This is a perspective view of the inner tank and cooling pipe structure of this utility model;

[0026] Figure 5 This is a three-dimensional view of the cooling component structure of this utility model.

[0027] In the diagram: 1. Base; 2. Cooling tank; 3. Opening; 4. Stirring assembly; 401. Sealing cap; 402. Stirring motor; 403. Stirring rod; 404. Stirring blade; 405. Connecting pipe; 5. Inner tank; 6. Cooling assembly; 601. Cooling box; 602. Refrigerator; 603. Feed pipe; 604. Circulating water pump; 605. Cooling pipe; 606. Return pipe; 607. Heat dissipation fins. Detailed Implementation

[0028] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model is provided below with reference to the accompanying drawings.

[0029] Please see Figure 1-5 In this embodiment, a cooling tank for isobutylene dimerization to generate isooctene includes a base 1, a cooling tank 2 fixedly installed on the top of the base 1, an inner tank 5 fixedly installed inside the cooling tank 2, an opening 3 extending to the top of the cooling tank 2 fixedly installed on the top of the inner tank 5, a stirring assembly 4 connected to the top of the opening 3, and a cooling assembly 6 fixedly installed inside the base 1.

[0030] In this embodiment, the reaction of isobutylene dimerization to form isooctene is an exothermic reaction. If the heat generated by the reaction is not removed in time, the system temperature will continue to rise. Excessive temperature will not only promote side reactions and generate impurities such as trimerisobutylene, reducing the selectivity and yield of isooctene, but may also lead to runaway reaction and safety hazards. Therefore, a cooling tank 2 is used. The combination of the base 1, cooling tank 2, inner tank 5, opening 3, stirring assembly 4 and cooling assembly 6 can form a cooling tank device for isobutylene dimerization to form isooctene.

[0031] The stirring assembly 4 includes a sealing cover 401 threaded to the top surface of the opening 3, a stirring motor 402 fixedly installed at the middle position of the top of the sealing cover 401, a stirring rod 403 fixedly installed at the output shaft of the stirring motor 402, a plurality of stirring blades 404 fixedly installed on the surface of the stirring rod 403, and a connecting pipe 405 fixedly installed inside the sealing cover 401.

[0032] The surface of the opening 3 is provided with external threads, and the inner wall of the sealing cover 401 is provided with internal threads that are compatible with the external threads.

[0033] In this embodiment, in conjunction with the cooling assembly 6, after the stirring motor 402 is started, its output shaft drives the stirring rod 403 fixedly connected to it to rotate. Multiple stirring blades 404 fixed on the surface of the stirring rod 403 rotate together with the stirring rod 403 to stir the material in the cooling tank 2, so that the material cools down quickly. The sealing cover 401 is tightly connected to the opening 3 through threads, ensuring the sealing of the device and preventing material leakage and the entry of external impurities.

[0034] In this embodiment, the stirring process can break the temperature stratification of the material in the cooling tank 2, making the temperature distribution of the material more uniform. When the cooling component 6 is working, it can accelerate the transfer of heat from the reactants to the cooling medium, improve the cooling efficiency, control the reaction temperature more precisely, avoid local overheating, and reduce the occurrence of side reactions.

[0035] In this embodiment, the sealing cap 401 of the stirring assembly 4 is connected to the opening 3 by a thread. When the stirring device is worn or aged and needs to be repaired or replaced, the staff only needs to unscrew the sealing cap 401 to take out the stirring motor 402, stirring rod 403 and stirring blade 404 as a whole. There is no need to dismantle other structures of the tank, which greatly saves manpower and resources, shortens maintenance time and reduces losses caused by production stoppage.

[0036] The cooling assembly 6 includes a cooling box 601 fixedly installed in the inner cavity of the base 1, a cooler 602 fixedly installed inside the cooling box 601, a feed pipe 603 fixedly installed on the surface of the base 1, a circulating water pump 604 fixedly installed at the top of the cooling box 601 in the inner cavity of the base 1, a cooling pipe 605 fixedly installed at the outlet of the circulating water pump 604, a return pipe 606 fixedly installed at the end of the cooling pipe 605 away from the circulating water pump 604, and heat dissipation fins 607 fixedly installed in the inner cavity of the base 1.

[0037] The cooling pipe 605 is a serpentine design, which is wrapped around the surface of the inner tank 5. One end of the feed pipe 603 extends into the interior of the cooling box 601. A return pipe 606 is inserted into the interior of the heat dissipation fins 607. The end of the return pipe 606 away from the cooling pipe 605 extends into the interior of the cooling box 601. The return pipe 606 is fixedly installed in the inner cavity of the base 1. The cooling box 601, the circulating water pump 604, the cooling pipe 605 and the return pipe 606 are interconnected.

[0038] In this embodiment, in the cooling assembly 6, the refrigerator 602 is installed as the core inside the cooling box 601. It uses the principles of compression refrigeration and absorption refrigeration to cool the cooling medium, such as water or coolant, in the cooling box 601, providing a cold source for subsequent cooling. When the cooling medium enters the cooling box 601 through the feed pipe 603, the circulating water pump 604 located at the top of the cooling box 601 starts, extracting the cooled medium and pressing it into the serpentine cooling pipe 605 that wraps around the inner tank 5. In the cooling pipe 605, the low-temperature cooling medium exchanges heat with the reactants in the inner tank 5, absorbs heat and rises in temperature, then flows into the return pipe 606 through the cooling pipe 605 and returns to the cooling box 601, forming a cycle to continuously cool the reactants. Before returning to the cooling box 601, the return pipe 606 passes through the heat dissipation fins 607, using its large surface area to dissipate the heat of the cooling medium to the surrounding environment, assisting the refrigerator 602 in further reducing the temperature of the cooling medium, improving the efficiency of the cooling system, and ensuring stable cooling of the reactants in the inner tank 5.

[0039] In summary, this isobutylene dimerization cooling tank for isooctene production utilizes a cooling assembly 6 with a cooler 602 to provide a cooling source for the cooling medium in the cooling tank 601. A circulating water pump 604 facilitates heat exchange between the cooling medium and the inner tank 5 via the cooling pipe 605. A return pipe 606, in conjunction with heat dissipation fins 607, further assists in cooling, forming a highly efficient circulating cooling system. Simultaneously, the stirring assembly 4 with a stirring motor 402 drives the stirring rod 403 and stirring blades 404 to stir the materials, breaking down temperature stratification, accelerating heat transfer to the cooling medium, precisely controlling the reaction temperature, avoiding localized overheating, reducing side reactions, improving the selectivity and yield of isooctene, and ensuring the safe and stable progress of the reaction.

[0040] Furthermore, the sealing cover 401 of the stirring assembly 4 is connected to the opening 3 by a thread. When the stirring device experiences wear or aging, the operator can easily unscrew the sealing cover 401 and remove the stirring motor 402, stirring rod 403, and stirring blade 404 for repair or replacement without dismantling other structures of the tank. This saves manpower and resources, shortens maintenance time, reduces losses caused by production stoppages, and effectively reduces equipment maintenance costs and production interruption costs.

[0041] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and improvements without departing from the principles of the present invention, and these modifications and improvements should also be considered to fall within the protection scope of the present invention.

Claims

1. A cooling tank for isobutylene dimerization to isooctene, comprising a base (1), characterized in that: A cooling tank (2) is fixedly installed on the top of the base (1), an inner tank (5) is fixedly installed inside the cooling tank (2), an opening (3) extending to the top of the cooling tank (2) is fixedly installed on the top of the inner tank (5), a stirring assembly (4) is connected to the top of the opening (3), and a cooling assembly (6) is fixedly installed inside the base (1). The stirring assembly (4) includes a sealing cover (401) threaded to the top surface of the opening (3), a stirring motor (402) fixedly installed at the middle position of the top of the sealing cover (401), a stirring rod (403) fixedly installed at the output shaft of the stirring motor (402), a plurality of stirring blades (404) fixedly installed on the surface of the stirring rod (403), and a connecting pipe (405) fixedly installed inside the sealing cover (401). The cooling assembly (6) includes a cooling box (601) fixedly installed in the inner cavity of the base (1), a cooler (602) fixedly installed inside the cooling box (601), a feed pipe (603) fixedly installed on the surface of the base (1), a circulating water pump (604) fixedly installed at the top of the cooling box (601) in the inner cavity of the base (1), a cooling pipe (605) fixedly installed at the outlet of the circulating water pump (604), a return pipe (606) fixedly installed at the end of the cooling pipe (605) away from the circulating water pump (604), and heat dissipation fins (607) fixedly installed in the inner cavity of the base (1).

2. The isobutylene dimerization cooling tank for isooctene production according to claim 1, characterized in that: The surface of the opening (3) is provided with an external thread, and the inner wall of the sealing cover (401) is provided with an internal thread that matches the external thread.

3. A cooling tank for isobutylene dimerization to isooctene according to claim 1, characterized in that: The stirring rod (403) and stirring blade (404) both extend into the interior of the inner tank (5), and the bottom of the connecting pipe (405) extends into the inner tank (5), and a valve is fixedly installed on the top surface of the connecting pipe (405).

4. A cooling tank for isobutylene dimerization to isooctene according to claim 1, characterized in that: The cooling pipe (605) is a serpentine pipe, which is wrapped around the surface of the inner tank (5).

5. A cooling tank for isobutylene dimerization to isooctene according to claim 1, characterized in that: One end of the feed pipe (603) extends into the interior of the cooling box (601), and a return pipe (606) is inserted into the interior of the heat dissipation fins (607).

6. A cooling tank for isobutylene dimerization to isooctene according to claim 1, characterized in that: The end of the return pipe (606) away from the cooling pipe (605) extends into the interior of the cooling box (601), and the return pipe (606) is fixedly installed in the inner cavity of the base (1).

7. A cooling tank for isobutylene dimerization to isooctene according to claim 1, characterized in that: The cooling tank (601), circulating water pump (604), cooling pipe (605) and return pipe (606) are interconnected.

8. A cooling tank for isobutylene dimerization to isooctene according to claim 1, characterized in that: After the stirring motor is started, its output shaft drives the stirring rod that is fixedly connected to it to rotate. Multiple stirring blades fixed on the surface of the stirring rod rotate together with the stirring rod, stirring the material in the cooling tank and making the material cool down quickly.

9. A cooling tank for isobutylene dimerization to isooctene according to claim 1, characterized in that: The refrigeration unit uses the principles of compression refrigeration and absorption refrigeration to cool the cooling medium inside the cooling box.

10. A cooling tank for isobutylene dimerization to isooctene according to claim 9, characterized in that: The cooling medium inside the cooling tank is water.

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