Cooling circulation device for improving product conversion rate

By adopting the U-shaped third cooling tube and the fifth cooling tube in the cooling circulation device, combined with the use of the pump body and the heat dissipation fins, the problem that a single cooling method cannot quickly reduce the internal temperature of the reactor is solved, and efficient cooling cycle is achieved, and product conversion rate and quality are improved.

CN223020653UActive Publication Date: 2025-06-24SHANDONG QINGSHUI CHEM CO LTD
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Patent Information

Application Number
CN202421761817.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-24
Publication Date
2025-06-24
Estimated Expiration
2034-07-24

AI Technical Summary

Technical Problem

In the prior art, the internal temperature of the reactor cannot be quickly reduced by only a single water cooling or air cooling, resulting in a low conversion rate of diallyl phthalate production, affecting product quality.

Method used

A cooling circulation device including a U-shaped third cooling tube with a longitudinal design and a fifth cooling tube arranged around is adopted, and combined with the design of the pump body and the heat dissipation fins, the double circulating water cooling and air-cooling heat exchange inside the inner shell are realized.

Benefits of technology

Through the combination of double circulation water cooling and air-cooling heat exchange, the cooling efficiency inside the reactor is significantly improved, the product conversion rate is improved, and the product quality is improved.

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    Figure CN223020653U_ABST
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Abstract

The utility model discloses a cooling circulation device for improving the product conversion rate, and relates to the technical field of DAP production, the cooling circulation device comprises a fixed base, one side of the fixed base is fixedly connected with an outer shell, in the utility model, a U-shaped third cooling pipe which is longitudinally designed is matched with a fifth cooling pipe which is arranged in a surrounding manner, so that the product conversion rate is improved; water circulation cooling in the inner shell is achieved, meanwhile, hot air in the inner shell can be pumped out for heat exchange through work of the pump body and then fed into the inner shell, and therefore double cooling of water cooling and air cooling is achieved, and the cooling efficiency of the interior of the inner shell is improved. When the pump body works to pump out hot air generated in the inner shell through the first connecting pipe, hot air flows through the interior of the second connecting pipe, the second connecting pipe is designed to be S-shaped, a plurality of cooling fins are installed outside the second connecting pipe, heat exchange is conducted on the hot air in the second connecting pipe through cooperation with a cooling fan, and the heat exchange efficiency is improved. Cooling of hot air in the inner shell is accelerated, and the speed of cooling the interior of the inner shell is increased.
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Description

Technical Field

[0001] The utility model relates to the technical field of DAP production, in particular to a cooling circulation device for improving the product conversion rate. Background Art

[0002] Diallyl phthalate (DAP) is a colorless or light yellow transparent liquid. In the synthesis stage of diallyl phthalate, a cooling circulation device is required to control the reaction temperature.

[0003] In the prior art, when using a cooling circulation device to control the reaction temperature of diallyl phthalate, mostly only single water cooling or air cooling is adopted. However, when the temperature inside the reaction kettle is too high, the cooling circulation effect is not good, resulting in a low conversion rate of diallyl phthalate production and affecting the product quality. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem in the prior art that the temperature inside the reaction kettle cannot be quickly reduced only by single water cooling or air cooling, and to propose a cooling circulation device for improving the product conversion rate.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A cooling circulation device for improving the product conversion rate, including a fixed base, one side of the fixed base is fixedly connected with an outer shell, the inner wall of the outer shell is fixedly connected with an inner shell, a fifth cooling pipe is arranged in the cavity inside the outer shell, both ends of the fifth cooling pipe pass through the outer surface of the outer shell, one end of the fifth cooling pipe is fixedly communicated with a second conveying pipe, one end of the second conveying pipe is fixedly communicated with a condenser, the condenser is fixedly connected to one side of the fixed base, one side of the condenser is fixedly communicated with a first conveying pipe, one end of the first conveying pipe is fixedly communicated with the other end of the fifth cooling pipe, the outer surface of the outer shell is fixedly connected with a fixed frame, one side of the fixed frame is fixedly connected with a pump body, the input end of the pump body is fixedly communicated with a first connecting pipe, and the output end of the pump body is fixedly communicated with a second connecting pipe. One end of the second connecting pipe passes through one side of the outer shell and one side of the inner shell in sequence.

[0006] Preferably, a third cooling pipe is arranged in the cavity inside the inner shell, one end of the third cooling pipe is fixedly communicated with a second cooling pipe, one end of the second cooling pipe is fixedly communicated with a first cooling pipe, one end of the first cooling pipe passes through the inner shell and the outer shell, and one end of the first cooling pipe is fixedly communicated with one end of the first conveying pipe.

[0007] Preferably, the other end of the third cooling pipe is fixedly communicated with a fourth cooling pipe, one end of the fourth cooling pipe is fixedly communicated with a sixth cooling pipe, one end of the sixth cooling pipe passes through the inner shell and the outer shell, and one end of the sixth cooling pipe is fixedly communicated with one end of the second conveying pipe.

[0008] Preferably, a top cover is fixedly connected to the top of the outer shell, and one end of the first connecting pipe passes through one side of the top cover.

[0009] Preferably, a support frame is fixedly connected to the outside of the second connecting pipe, and one side of the support frame is fixedly connected to the inside of the fixed frame.

[0010] Preferably, a heat dissipation fin is fixedly connected to one side of the support frame, and the heat dissipation fin is fixedly connected to the second connecting pipe.

[0011] Preferably, a heat dissipation fan is fixedly connected to the side of the fixed frame.

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

[0013] 1. In the present utility model, through the cooperation between the longitudinally designed U-shaped third cooling pipe and the surrounding fifth cooling pipe, the water circulation cooling inside the inner shell is realized. At the same time, the pump body can work to extract the hot air inside the inner shell, exchange heat, and then send it back into the inner shell, thereby realizing the dual cooling of water cooling and air cooling and improving the cooling efficiency inside the inner shell.

[0014] 2. In the present utility model, when the pump body works to extract the hot air generated inside the inner shell through the first connecting pipe, the hot air flows through the inside of the second connecting pipe. Since the second connecting pipe is serpentine in design and a plurality of heat dissipation fins are installed on the outside of the second connecting pipe, through cooperation with the heat dissipation fan, the hot air inside the second connecting pipe is exchanged for heat, accelerating the cooling of the hot air inside the inner shell and increasing the speed of cooling the inside of the inner shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of a cooling circulation device for improving the product conversion rate proposed by the present utility model;

[0016] Figure 2 is an internal sectional structural schematic diagram of a cooling circulation device for improving the product conversion rate proposed by the present utility model;

[0017] Figure 3 is a connection structural schematic diagram of the second cooling pipe of a cooling circulation device for improving the product conversion rate proposed by the present utility model;

[0018] Figure 4 is a connection structural schematic diagram of the fixed frame of a cooling circulation device for improving the product conversion rate proposed by the present utility model.

[0019] Legend: 1. Fixed base; 2. Outer housing; 3. Heat dissipation fins; 4. Fixed frame; 5. Pump body; 6. First delivery pipe; 7. Second delivery pipe; 8. Condenser; 9. Inner housing; 10. Top cover; 11. First cooling pipe; 12. Second cooling pipe; 13. Third cooling pipe; 14. Fourth cooling pipe; 15. Fifth cooling pipe; 16. Sixth cooling pipe; 17. First connecting pipe; 18. Second connecting pipe; 19. Support frame; 20. Cooling fan. Detailed implementation mode

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0021] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0022] Embodiment 1

[0023] As Figures 1-4 shown, the present invention provides a cooling circulation device for improving the product conversion rate, including a fixed base 1. One side of the fixed base 1 is fixedly connected with an outer housing 2. The inner wall of the outer housing 2 is fixedly connected with an inner housing 9. A fifth cooling pipe 15 is arranged in the cavity inside the outer housing 2. Both ends of the fifth cooling pipe 15 pass through the outer surface of the outer housing 2. One end of the fifth cooling pipe 15 is fixedly communicated with a second delivery pipe 7. One end of the second delivery pipe 7 is fixedly communicated with a condenser 8. The condenser 8 is fixedly connected to one side of the fixed base 1. One side of the condenser 8 is fixedly communicated with a first delivery pipe 6. One end of the first delivery pipe 6 is fixedly communicated with the other end of the fifth cooling pipe 15; A third cooling pipe 13 is arranged in the cavity inside the inner housing 9. One end of the third cooling pipe 13 is fixedly communicated with a second cooling pipe 12. One end of the second cooling pipe 12 is fixedly communicated with a first cooling pipe 11. One end of the first cooling pipe 11 passes through the inner housing 9 and the outer housing 2. One end of the first cooling pipe 11 is fixedly communicated with one end of the first delivery pipe 6; The other end of the third cooling pipe 13 is fixedly communicated with a fourth cooling pipe 14. One end of the fourth cooling pipe 14 is fixedly communicated with a sixth cooling pipe 16. One end of the sixth cooling pipe 16 passes through the inner housing 9 and the outer housing 2. One end of the sixth cooling pipe 16 is fixedly communicated with one end of the second delivery pipe 7.

[0024] The cooling water inside the condenser 8 is respectively conveyed through the first conveying pipe 6 to the inside of the fifth cooling pipe 15 and the first cooling pipe 11. The fifth cooling pipe 15 is arranged in a surrounding manner inside the cavity of the outer shell 2, and can cool down the material inside the inner shell 9. At the same time, the cooling water sequentially passes through the first cooling pipe 11 and the second cooling pipe 12, flows into the inside of a plurality of third cooling pipes 13, and after being aggregated by the fourth cooling pipe 14 connected to the other end of the third cooling pipe 13, flows out from the sixth cooling pipe 16 and is circulated to the inside of the condenser 8 through the second conveying pipe 7. The third cooling pipe 13 is designed in a U shape and is longitudinally arranged inside the cavity of the inner shell 9. By cooperating with the surrounding fifth cooling pipe 15, double-cycle water cooling is realized, and the cooling efficiency is improved.

[0025] Embodiment 2

[0026] As Figure 1 , Figure 2 and Figure 3 shown, a fixed frame 4 is fixedly connected to the outer surface of the outer shell 2. One side of the fixed frame 4 is fixedly connected with a pump body 5. The input end of the pump body 5 is fixedly communicated with a first connecting pipe 17, and the output end of the pump body 5 is fixedly communicated with a second connecting pipe 18. One end of the second connecting pipe 18 sequentially passes through one side of the outer shell 2 and one side of the inner shell 9; a top cover 10 is fixedly connected to the top of the outer shell 2, and one end of the first connecting pipe 17 passes through one side of the top cover 10; a support frame 19 is fixedly connected to the outside of the second connecting pipe 18, and one side of the support frame 19 is fixedly connected to the inside of the fixed frame 4; a heat dissipation fin 3 is fixedly connected to one side of the support frame 19, and the heat dissipation fin 3 is fixedly connected to the second connecting pipe 18; a heat dissipation fan 20 is fixedly connected to the side of the fixed frame 4.

[0027] By the operation of the pump body 5, the hot air generated by the material inside the inner shell 9 is extracted through the first connecting pipe 17. The hot air flows through the inside of the second connecting pipe 18. The second connecting pipe 18 is designed in a snake shape, and a plurality of heat dissipation fins 3 are installed on the outside of the second connecting pipe 18. By cooperating with the heat dissipation fan 20, heat exchange is carried out on the hot air inside the second connecting pipe 18, and the cooled gas after heat exchange is sent into the inside of the inner shell 9, so that the temperature inside the inner shell 9 can be controlled and the cooling efficiency can be accelerated.

[0028] Usage method and working principle of this device: The cooling water inside the condenser 8 is respectively conveyed through the first conveying pipe 6 into the fifth cooling pipe 15 and the first cooling pipe 11. The fifth cooling pipe 15 is arranged in a surrounding manner inside the cavity of the outer housing 2. Meanwhile, the cooling water sequentially passes through the first cooling pipe 11 and the second cooling pipe 12, flows into the interiors of multiple third cooling pipes 13, is aggregated through the fourth cooling pipe 14 connected to the other end of the third cooling pipe 13, and then flows out from the sixth cooling pipe 16, and is circulated through the second conveying pipe 7 into the condenser 8. Since the third cooling pipe 13 is of a U-shaped design and is longitudinally arranged inside the cavity of the inner housing 9, it cools the interior of the inner housing 9. The hot air generated during the production of the material inside the inner housing 9 is extracted through the operation of the pump body 5 via the first connecting pipe 17. The hot air flows through the second connecting pipe 18. Since the second connecting pipe 18 is of a serpentine design, and a plurality of heat dissipation fins 3 are installed on the outer part of the second connecting pipe 18, heat exchange is performed on the hot air inside the second connecting pipe 18 in cooperation with the cooling fan 20.

[0029] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A cooling circulation device for improving product conversion rate, comprising a fixed base (1), characterized in that: One side of the fixed base (1) is fixedly connected to an outer shell (2), the inner wall of the outer shell (2) is fixedly connected to an inner shell (9), a fifth cooling pipe (15) is arranged in a cavity inside the outer shell (2), both ends of the fifth cooling pipe (15) pass through the outer surface of the outer shell (2), one end of the fifth cooling pipe (15) is fixedly connected to a second delivery pipe (7), one end of the second delivery pipe (7) is fixedly connected to a condenser (8), the condenser (8) is fixedly connected to one side of the fixed base (1), and the condenser (8) is fixedly connected to the inner wall of the outer shell (2). ) is fixedly connected to a first delivery pipe (6) on one side, one end of the first delivery pipe (6) is fixedly connected to the other end of a fifth cooling pipe (15), the outer surface of the outer shell (2) is fixedly connected to a fixing frame (4), one side of the fixing frame (4) is fixedly connected to a pump body (5), the input end of the pump body (5) is fixedly connected to a first connecting pipe (17), the output end of the pump body (5) is fixedly connected to a second connecting pipe (18), one end of the second connecting pipe (18) passes through one side of the outer shell (2) and one side of the inner shell (9) in sequence.

2. A cooling circulation device for improving product conversion rate according to claim 1, characterized in that: A third cooling pipe (13) is arranged in the cavity inside the inner shell (9), one end of the third cooling pipe (13) is fixedly connected to the second cooling pipe (12), one end of the second cooling pipe (12) is fixedly connected to the first cooling pipe (11), one end of the first cooling pipe (11) passes through the inner shell (9) and the outer shell (2), and one end of the first cooling pipe (11) is fixedly connected to one end of the first conveying pipe (6).

3. A cooling circulation device for improving product conversion rate according to claim 2, characterized in that: The other end of the third cooling pipe (13) is fixedly connected to the fourth cooling pipe (14), one end of the fourth cooling pipe (14) is fixedly connected to the sixth cooling pipe (16), one end of the sixth cooling pipe (16) passes through the inner shell (9) and the outer shell (2), and one end of the sixth cooling pipe (16) is fixedly connected to one end of the second delivery pipe (7).

4. A cooling circulation device for improving product conversion rate according to claim 1, characterized in that: A top cover (10) is fixedly connected to the top of the outer shell (2), and one end of the first connecting pipe (17) passes through one side of the top cover (10).

5. A cooling circulation device for improving product conversion rate according to claim 1, characterized in that: The outside of the second connecting tube (18) is fixedly connected to a support frame (19), and one side of the support frame (19) is fixedly connected to the inside of the fixing frame (4).

6. A cooling circulation device for improving product conversion rate according to claim 5, characterized in that: A heat dissipation fin (3) is fixedly connected to one side of the support frame (19), and the heat dissipation fin (3) is fixedly connected to the second connecting pipe (18).

7. A cooling circulation device for improving product conversion rate according to claim 1, characterized in that: A heat dissipation fan (20) is fixedly connected to the side of the fixing frame (4).