Fluorination reactor

Abstract

The utility model discloses a fluorination reactor which comprises a support frame, a reaction cooling structure and a stirring structure, the reaction cooling structure is arranged on the support frame, and the stirring structure is arranged on the support frame. The reaction cooling structure comprises a reaction kettle, a cooling fin, a fixing frame, an annular pipe, a nozzle, a gas ejector pipe, an electric valve, a liquid nitrogen tank, a fixing ring, a temperature sensor, a sensing line and an electromagnetic blow-off valve, the reaction kettle is fixedly arranged above the supporting frame, the cooling fin wraps the middle reaction part of the outer side of the reaction kettle, and the fixing frame is fixedly arranged above the supporting frame. The utility model belongs to the technical field of fluorination reaction equipment, and particularly relates to a fluorination reactor, which effectively solves the problems that the fluorination reaction is aggravated, the speed is accelerated, a large amount of heat is released and cannot be timely and effectively discharged due to sufficient mixing of reactants in the full stirring process of the fluorination reactor, the internal temperature and pressure of the fluorination reactor are sharply increased, and the reaction time is shortened. And equipment explosion accidents are caused.

Description

Technical Field

[0001] This utility model belongs to the technical field of fluorination reaction equipment, specifically referring to a fluorination reactor. Background Technology

[0002] The reaction in which hydrogen is replaced by fluorine in an organic compound molecule is called fluorination. Controlling the process conditions in fluorination is crucial. Current fluorination processes suffer from low yields of the target product due to uneven mixing of reactants, resulting in significant waste of raw materials. Application number CN201920457216.9 discloses a fluorination reactor that addresses the problem of uneven mixing leading to low yields and waste of raw materials. However, while the reactor achieves thorough mixing during stirring, this process intensifies the fluorination reaction, accelerating its rate and releasing a large amount of heat. The inability to effectively dissipate this heat can cause a rapid increase in internal temperature and pressure, potentially leading to an explosion. Utility Model Content

[0003] In response to the above situation and to overcome the shortcomings of the existing technology, this utility model proposes a fluorination reactor that effectively solves the problem that during the process of thorough mixing of reactants in a fluorination reactor, the fluorination reaction is intensified and accelerated, releasing a large amount of heat that cannot be discharged in a timely and effective manner, resulting in a sharp increase in the internal temperature and pressure of the fluorination reactor and causing equipment explosion accidents.

[0004] The technical solution adopted by this utility model is as follows: This utility model proposes a fluorination reactor, including a support frame, a reaction cooling structure, and a stirring structure. The reaction cooling structure is mounted on the support frame, and the stirring structure is also mounted on the support frame. The reaction cooling structure includes a reaction vessel, heat sink, a fixed frame, an annular pipe, a nozzle, a jet pipe, an electric valve, a liquid nitrogen tank, a fixing ring, a temperature sensor, a sensor wire, and an electromagnetic discharge valve. The reaction vessel is fixedly mounted above the support frame. The heat sink is wrapped around the middle reaction area on the outside of the reaction vessel. The fixed frame... Fixed above the support frame, the annular tube is snapped into the top limiting groove of the fixed frame, the nozzle is connected to the bottom of the annular tube, the jet pipe is connected to one side of the annular tube, the electric valve is installed on the jet pipe, the liquid nitrogen tank opening is connected to the air inlet end of the jet pipe, the fixing ring is wrapped around the bottom of the reactor, the temperature sensor is fixed on the fixing ring and located near the outside of the reactor, one end of the sensing wire is electrically connected to the electric valve and the other end is electrically connected to the temperature sensor, and the electromagnetic discharge valve is installed at the bottom of the reactor.

[0005] Preferably, the stirring structure includes a fixed base, a motor, and stirring teeth. The fixed base is fixedly mounted above the support frame, the motor is fixedly mounted on the fixed base, and the stirring teeth penetrate the top of the reactor and are fixedly mounted on the motor rotor.

[0006] To achieve a better rapid cooling effect, the liquid nitrogen tank is filled with liquid nitrogen gas.

[0007] To achieve precise control more quickly, four sets of temperature sensors are evenly distributed at 90-degree intervals below the reactor.

[0008] Furthermore, the heat sink is arranged in a manner that alternates between grooves and protrusions, enclosing the reactor, and the heat sink is made of copper.

[0009] To achieve rapid cooling, the nozzles are arranged in six groups spaced at 60 degrees apart, with the spray direction tilted upwards at 30 degrees toward the center of the heat sink.

[0010] The beneficial effects of this utility model using the above structure are as follows: The fluorination reactor proposed in this solution detects the temperature inside the reactor through a temperature sensor. When the temperature reaches the high-temperature critical value, the electric valve is opened to spray liquid nitrogen from the liquid nitrogen tank through the nozzle on the annular tube onto the heat sink, thereby rapidly reducing the temperature inside the reactor and preventing the temperature and pressure inside the reactor from becoming too high and causing an explosion. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of a fluorination reactor proposed in this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of a fluorination reactor proposed in this utility model from another perspective;

[0013] Figure 3 This is a third-view structural schematic diagram of a fluorination reactor proposed in this utility model;

[0014] Figure 4 This is a schematic cross-sectional view of a fluorination reactor proposed in this utility model.

[0015] Among them, 1. support frame, 2. reaction cooling structure, 3. stirring structure, 4. reaction vessel, 5. heat sink, 6. fixing frame, 7. annular tube, 8. nozzle, 9. jet pipe, 10. electric control valve, 11. liquid nitrogen tank, 12. fixing ring, 13. temperature sensor, 14. sensor line, 15. electromagnetic discharge valve, 16. fixing base, 17. motor, 18. stirring teeth.

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention proposes a fluorination reactor, comprising a support frame 1, a reaction cooling structure 2, and a stirring structure 3. The reaction cooling structure 2 is mounted on the support frame 1, and the stirring structure 3 is also mounted on the support frame 1. The reaction cooling structure 2 includes a reaction vessel 4, heat sink 5, a fixing frame 6, an annular tube 7, a nozzle 8, a jet pipe 9, an electric valve, a liquid nitrogen tank 11, a fixing ring 12, a temperature sensor 13, a sensing wire 14, and an electromagnetic discharge valve 15. The reaction vessel 4 is fixedly mounted above the support frame 1. The heat sink 5 is wrapped around the middle reaction part of the outer side of the reaction vessel 4. The heat sink 5 is arranged in a pattern of grooves and protrusions, and is made of copper. The fixing frame 6 is fixedly mounted above the support frame 1, and the annular tube 7 is snapped onto the fixing frame 1. The nozzle 8 is connected to the bottom of the annular tube 7 in the top limiting groove of the fixed frame 6. The nozzle 8 is set with six groups spaced at 60 degrees and the spray direction is tilted upward at 30 degrees towards the middle of the heat sink 5. The jet pipe 9 is connected to one side of the annular tube 7. The electric valve is set on the jet pipe 9. The bottle mouth of the liquid nitrogen tank 11 is connected to the air inlet end of the jet pipe 9. The liquid nitrogen tank 11 is filled with liquid nitrogen. The fixing ring 12 is wrapped around the bottom of the reactor 4. The temperature sensor 13 is fixed on the fixing ring 12 and set close to the outside of the reactor 4. The temperature sensor 13 is set with four groups evenly distributed at 90 degrees below the reactor 4. One end of the sensing wire 14 is electrically connected to the electric valve and the other end is electrically connected to the temperature sensor 13. The electromagnetic discharge valve 15 is installed at the bottom of the reactor 4.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the stirring structure 3 includes a fixed base 16, a motor 17, and stirring teeth 18. The fixed base 16 is fixedly mounted on the support frame 1, the motor 17 is fixedly mounted on the fixed base 16, and the stirring teeth 18 penetrate the top of the reactor 4 and are fixedly mounted on the rotor of the motor 17.

[0020] In practical use, the reactants are added into reactor 4 through the pipe above reactor 4, and a fluorination reaction takes place inside reactor 4. At this time, the fluorination reaction releases a large amount of heat, and the temperature inside reactor 4 rises. The temperature sensor 13 on the outside of reactor 4 monitors the temperature. When the temperature sensor 13 detects that the temperature outside reactor 4 has reached the maximum critical value, the high temperature signal is transmitted to the electric valve through the sensor line 14. At this time, the electric valve opens, and the liquid nitrogen gas in liquid nitrogen tank 11 flows through the jet pipe 9 to the annular pipe 7 and finally sprays it onto the outside of the heat sink 5 through the nozzle 8 on the annular pipe 7, thereby absorbing the heat and quickly reducing the temperature inside reactor 4, avoiding high temperature and high pressure and explosion. The above is the entire process of using the fluorination reactor.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0023] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A fluorination reactor characterized by: The utility model provides a reaction temperature reduction structure and stirring structure are arranged on the support frame, the reaction temperature reduction structure includes reaction kettle, fin, fixed frame, annular pipe, nozzle, air jet pipe, electric valve, liquid nitrogen tank, fixed ring, temperature sensor, sensing wire and electromagnetic discharge valve, the reaction kettle is fixedly arranged above the support frame, the fin is wrapped and is arranged in the middle reaction position outside the reaction kettle, the fixed frame is fixedly arranged above the support frame, the annular pipe buckle is arranged in the top limiting slot of fixed frame, the nozzle is connected below the annular pipe, the air jet pipe is connected on one side of annular pipe, the electric valve is arranged on the air jet pipe, the liquid nitrogen tank bottle mouth is connected on the air inlet end of air jet pipe, the fixed ring is wrapped and is arranged below the reaction kettle, the temperature sensor is fixedly arranged on the fixed ring and is close to the outside of reaction kettle, one end of sensing wire is electrically connected on the electric valve and the other end is electrically connected on the temperature sensor, the electromagnetic discharge valve is installed on the bottom of reaction kettle.

2. A fluorination reactor according to claim 1, characterized in that: The stirring structure includes fixed seat, motor and stirring tooth, the fixed seat is fixedly arranged above the support frame, the motor is fixedly arranged on the fixed seat, and the stirring tooth is fixedly arranged on the motor rotating sub through the top of the reaction kettle.

3. A fluorination reactor according to claim 2, wherein: The liquid nitrogen tank is filled with liquid nitrogen.

4. A fluorination reactor according to claim 3, wherein: The temperature sensor is arranged in four groups and is evenly distributed at intervals of ninety degrees below the reaction kettle.

5. A fluorination reactor according to claim 4, wherein: The fin is arranged in a groove and a convex block interval and wrapped around the reaction kettle, and the fin is made of copper.

6. A fluorination reactor according to claim 5, wherein: The nozzle is arranged in six groups at intervals of sixty degrees, and the spraying direction is inclined upward by thirty degrees towards the middle position of the fin.

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