Alkyl sulfonyl chloride reaction kettle with external circulation heat exchange function

Abstract

The utility model relates to the technical field of chemical reaction equipment, and discloses an external circulation heat exchange alkyl sulfonyl chloride reaction kettle which comprises a kettle body, a feeding pipe is fixedly connected in the kettle body, an exhaust pipe is fixedly connected to one side in the kettle body, a motor is fixedly connected to the outer wall of the kettle body, a rotating shaft is fixedly connected to the output end of the motor, and the rotating shaft is fixedly connected to the output end of the motor. A mounting assembly is arranged at one end of the rotating shaft, a detection assembly is arranged in the kettle body, the mounting assembly comprises a mounting seat, and one side of the outer wall of the mounting seat is fixedly connected to one end of the rotating shaft. According to the utility model, when the stirring paddle needs to be replaced, only the connecting shaft needs to be pressed inwards, the steel ball compresses the spring to be separated from the clamping groove together, the connecting shaft and the stirring paddle can be pulled out from the mounting seat, after a new stirring paddle is replaced, the connecting shaft is inserted into the mounting seat, and the steel ball is clamped into the clamping groove under the action of the first spring to finish mounting; the structural design enables the replacement process of the stirring paddle to be simple and rapid.

Description

Technical Field

[0001] This utility model relates to the field of chemical reaction equipment technology, and in particular to an alkyl sulfonyl chloride reactor with external circulation heat exchange. Background Technology

[0002] In the chemical industry, the production of alkyl sulfonyl chlorides is a crucial chemical reaction process. This process demands extremely strict control of reaction conditions, requiring precise temperature regulation, thorough material mixing, and a stable reaction environment. The alkyl sulfonyl chloride reactor, as the core equipment for realizing this chemical reaction, plays a vital role in chemical production. In the pharmaceutical industry, alkyl sulfonyl chlorides are key raw materials for synthesizing certain drug intermediates; the reactor ensures the reaction proceeds according to predetermined process conditions, guaranteeing the quality and yield of the drug intermediates. In pesticide production, alkyl sulfonyl chlorides are used to manufacture highly effective pesticides, and the performance of the reactor directly affects the content of the active ingredient and the stability of the pesticide's efficacy.

[0003] Existing alkyl sulfonyl chloride reactors typically consist of a reactor body, a stirring device, a heat exchange system, feeding and discharging devices, and temperature and pressure monitoring devices. The reactor body is generally made of corrosion-resistant materials such as stainless steel, which can withstand chemical corrosion during the reaction process. The stirring device is usually a stirring paddle fixedly installed inside the reactor body. The stirring paddle is rotated by a motor-driven shaft to achieve mixing of materials. The heat exchange system is commonly a jacketed structure, and the reaction temperature is controlled by passing a heat exchange medium through the jacket.

[0004] Existing reactors have significant drawbacks. Regarding the flexibility of the agitator, the agitator is typically fixed to the rotating shaft, making quick replacement difficult. When adjustments to the stirring method are needed based on different reactant characteristics or reaction stages, it's impossible to promptly replace the agitator with a suitable one. The existing structure makes agitator replacement cumbersome, requiring the disassembly of numerous components and consuming considerable time, severely impacting production efficiency and increasing production costs. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an alkyl sulfonyl chloride reactor with external circulation heat exchange, which aims to improve the existing problems of cumbersome agitator replacement process, which requires disassembling a large number of parts and takes a long time, seriously affecting production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an alkyl sulfonyl chloride reactor with external circulation heat exchange, comprising a reactor body, a feeding pipe fixedly connected inside the reactor body, an exhaust pipe fixedly connected to one side inside the reactor body, a motor fixedly connected to the outer wall of the reactor body, a rotating shaft fixedly connected to the output end of the motor, an installation assembly provided at one end of the rotating shaft, a detection assembly provided inside the reactor body, the installation assembly comprising a mounting base, one side of the outer wall of the mounting base fixedly connected to one end of the rotating shaft, a second spring provided inside the mounting base, one end of the second spring fixedly connected inside the mounting base, a slot provided on the outer wall of the mounting base, a connecting shaft slidably connected to the inner wall of the mounting base, a first spring provided inside the connecting shaft, a steel ball slidably connected inside the connecting shaft, and a double-ended stirring paddle fixedly connected to the outer wall of the connecting shaft.

[0007] Furthermore, the detection component includes a temperature sensor, one side of which is fixedly connected inside the vessel body.

[0008] Furthermore, a jacket is fixedly connected to the outer wall of the vessel, an inlet pipe is fixedly connected to one side of the inside of the jacket, an outlet pipe is fixedly connected to the other side of the inside of the jacket, a conduit is fixedly connected to one end of the inlet pipe, and a valve body is fixedly connected to one end of the conduit.

[0009] Furthermore, a sealing sleeve is fixedly connected inside the valve body, a ball valve is slidably connected to the inner wall of the valve body, a valve is fixedly connected to one side of the outer wall of the ball valve, a second conduit is fixedly connected to one end of the valve body, and a delivery pump is fixedly connected to one end of the second conduit.

[0010] Furthermore, one end of the spring is fixedly connected inside the connecting shaft, and the other end of the spring is fixedly connected to one side of the outer wall of the steel ball.

[0011] Furthermore, the outer wall of the steel ball is slidably connected inside the slot.

[0012] Furthermore, the outer wall of the ball valve is slidably connected to the outer wall of the sealing sleeve, and the outer wall of the valve is rotatably connected to the inside of the valve body.

[0013] Furthermore, a delivery pipe is fixedly connected to the input end of the delivery pump.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, when it is necessary to replace the agitator, simply press the connecting shaft inward to disengage the steel ball compression spring from the slot, and the connecting shaft and agitator can be pulled out of the mounting base. After replacing the agitator, insert the connecting shaft into the mounting base, and the steel ball will be inserted into the slot under the action of the spring to complete the installation. This structural design makes the agitator replacement process simple and quick, without the need to disassemble a large number of parts, saving time and labor costs. At the same time, the segmented design of the agitator optimizes the material mixing mode, improves the mass and heat transfer efficiency, enhances the mixing effect and reaction uniformity, and improves the overall stability and durability of the agitator. Furthermore, local damage is easy to repair or replace, reducing costs, minimizing downtime, and improving production efficiency.

[0016] 2. In this utility model, the outer wall jacket of the reactor and related components constitute the main structure of the external circulation heat exchange. The circulation system achieves continuous heat dissipation, and the temperature sensor inside the reactor monitors the temperature in real time and provides feedback signals. The control system adjusts the flow rate of the delivery pump and the valve opening based on the feedback to accurately control the temperature. This is crucial in the alkyl sulfonyl chloride reaction, as it can avoid the adverse effects of temperature on the reaction, ensure smooth production, improve the stability and consistency of product quality, extend the life of the reactor, and reduce costs. The temperature sensor, as a key data provider, makes the external circulation heat exchange structure intelligent and efficient, ensuring that the reaction takes place at the optimal temperature, and effectively improving the overall performance and production efficiency of the reactor. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an alkyl sulfonyl chloride reactor with external circulation heat exchange proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the reactor body structure of an alkyl sulfonyl chloride reactor with external circulation heat exchange proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the two-part spring structure of an alkyl sulfonyl chloride reactor with external circulation heat exchange proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the ball valve section of an alkyl sulfonyl chloride reactor with external circulation heat exchange proposed in this utility model.

[0021] Legend:

[0022] 1. Kettle body; 2. Exhaust pipe; 3. Motor; 4. Feeding pipe; 5. Temperature sensor; 6. Rotating shaft; 7. Double-ended stirring paddle; 8. Connecting shaft; 9. Spring 1; 10. Steel ball; 11. Spring 2; 12. Mounting base; 13. Slot; 14. Jacket; 15. Water outlet pipe; 16. Water inlet pipe; 17. Conduit 1; 18. Valve body; 19. Valve; 20. Ball valve; 21. Sealing sleeve; 22. Transfer pump; 23. Conduit 2; 24. Transfer pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1 - Figure 3 This utility model provides an embodiment of an alkyl sulfonyl chloride reactor with external circulation heat exchange, comprising a reactor body 1, which serves as a reaction vessel. The reactor body 1 is made of corrosion-resistant material to ensure it can withstand the reaction environment. A feed pipe 4 is fixedly connected inside the reactor body 1 for precisely adding reaction raw materials. Its structure ensures a stable inflow of raw materials into the reaction zone. An exhaust pipe 2 is fixedly connected to one side inside the reactor body 1 to promptly discharge reaction-generated gases and maintain stable pressure inside the reactor. A motor 3 is fixedly connected to the outer wall of the reactor body 1, providing power for stirring. A rotating shaft 6 is fixedly connected to the output end of the motor 3, transmitting motor torque. A mounting assembly is provided at one end of the rotating shaft 6, enabling flexible connection between the stirring paddle and the rotating shaft 6. The mounting assembly includes a mounting base 12, which connects the rotating shaft 6 and the stirring paddle. One side of its outer wall is fixedly connected to one end of the rotating shaft 6. A spring 11 is installed inside the mounting base 12 to buffer stirring vibration and ensure stability. The equipment includes a mounting base 12 with a slot 13 on its outer wall. The slot 13 engages with a steel ball 10 to position the stirring paddle. A connecting shaft 8 is slidably connected to the inner wall of the mounting base 12. The connecting shaft 8 transmits power and fixes the stirring paddle. A spring 9 is installed inside the connecting shaft 8. The spring 9 assists the steel ball 10 in engaging with the slot 13. The steel ball 10 is slidably connected inside the connecting shaft 8. The steel ball 10 and the slot 13 work together to enable quick installation and removal of the stirring paddle. A double-ended stirring paddle 7 is fixedly connected to the outer wall of the connecting shaft 8. The double-ended stirring paddle 7 enhances the mixing effect of materials. A detection component is installed inside the vessel body 1 to monitor the reaction temperature. The detection component includes a temperature sensor 5. The temperature sensor 5 accurately senses the temperature inside the vessel and feeds back a signal. One side of the temperature sensor 5 is fixedly connected inside the vessel body 1. One end of the spring 9 is fixedly connected inside the connecting shaft 8, and the other end of the spring 9 is fixedly connected to one side of the outer wall of the steel ball 10. The outer wall of the steel ball 10 is slidably connected inside the slot 13.

[0025] Reference Figure 1 and Figure 4A jacket 14 is fixedly connected to the outer wall of the vessel body 1, forming an external circulation heat exchange space. An inlet pipe 16 is fixedly connected to one side of the inside of the jacket 14, introducing a low-temperature heat exchange medium. An outlet pipe 15 is fixedly connected to the other side of the inside of the jacket 14, discharging the heat-exchanged medium. A conduit 17 is fixedly connected to one end of the inlet pipe 16, connecting the inlet pipe 16 to a valve body 18. A valve body 18 is fixedly connected to one end of the conduit 17, controlling the flow direction of the heat exchange medium. A sealing valve is fixedly connected inside the valve body 18. The sleeve 21 ensures the sealing of the valve body 18. A ball valve 20 is slidably connected to the inner wall of the valve body 18. The ball valve 20 regulates the flow rate of the medium. A valve 19 is fixedly connected to one side of the outer wall of the ball valve 20. The valve 19 controls the opening of the ball valve 20. A second conduit 23 is fixedly connected to one end of the valve body 18. The second conduit 23 transports the heat exchange medium to the transfer pump 22. The transfer pump 22 is fixedly connected to one end of the second conduit 23. The transfer pump 22 provides the power for medium circulation. A transfer pipe 24 is fixedly connected to the input end of the transfer pump 22. The transfer pipe 24 obtains the external low-temperature heat exchange medium.

[0026] Working Principle: First, motor 3 starts, driving shaft 6 to rotate. The double-ended stirring paddle 7, installed at one end of shaft 6, rotates accordingly. The rotation of the stirring paddle causes the reactants inside the vessel 1 to continuously tumble and mix in both horizontal and vertical directions. The stirring paddle section near the bottom of the vessel effectively prevents material sedimentation, while the middle and upper stirring paddle sections promote uniform dispersion of materials, increase the contact opportunities between reactants, and accelerate the chemical reaction. Temperature sensor 5 inside the vessel 1 monitors the temperature of the reactants in real time and transmits the temperature signal to the control system. When temperature sensor 5 detects a temperature deviation from the set range, the control system... Responding to the received temperature signal, the delivery pump 22 starts or adjusts its working state under the command of the control system, delivering the external low-temperature heat exchange medium, such as water, through the delivery pipe 24 and the second conduit 23 to the valve body 18. Inside the valve body 18, the valve 19 controls the opening of the ball valve 20 to regulate the flow rate of the heat exchange medium. The heat exchange medium enters the jacket 14 through the first conduit 17 and the inlet pipe 16, where it exchanges heat with the reaction materials inside the vessel 1, absorbing the heat generated by the reaction. The heated heat exchange medium is then discharged through the outlet pipe 15, returning to the external circulation system, such as a cooling device, for cooling treatment, and then... The mixture is pumped into the jacket 14 by the delivery pump 22 for the next cycle, thereby achieving continuous heat dissipation from the reactor and precisely controlling the reaction temperature within a suitable range. When the agitator needs to be replaced according to the reaction requirements, the operator presses the connecting shaft 8 inward. The connecting shaft 8 slides on the inner wall of the mounting base 12, causing the steel ball 10 to compress the spring-9 and disengage from the slot 13. At this time, the connecting shaft 8, along with the agitator, can be easily pulled out of the mounting base 12. When replacing the agitator, the connecting shaft 8 is inserted into the mounting base 12, and the steel ball 10 is engaged in the slot 13 under the elastic force of the spring-9, completing the rapid replacement of the agitator. This rapid replacement mechanism... This allows the reactor to adapt to the stirring requirements of different reactant characteristics or reaction stages in a timely manner, thereby improving production efficiency. The raw materials required for the reaction are added into the reactor body 1 through the feed pipe 4. The design of the feed pipe 4 ensures that the raw materials can enter the reaction zone accurately and stably, and the feeding speed and amount can be controlled as needed. During the reaction, some gaseous products will be generated. These gases are discharged from the reactor body 1 through the exhaust pipe 2. The position and structure of the exhaust pipe 2 are reasonably designed to effectively export the gas, prevent the gas from accumulating in the reactor and affecting the normal progress of the reaction, and at the same time ensure the stability of the reaction system pressure and guarantee production safety.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An external circulation heat exchange alkyl sulfonyl chloride reactor, comprising a reactor body (1), characterized in that: The kettle body (1) is internally connected with a feeding pipe (4), one side of the kettle body (1) is internally connected with an exhaust pipe (2), the outer wall of the kettle body (1) is fixedly connected with a motor (3), the output end of the motor (3) is fixedly connected with a rotating shaft (6), one end of the rotating shaft (6) is provided with a mounting assembly, and the kettle body (1) is internally provided with a detection assembly. The mounting assembly comprises a mounting seat (12), one side of the outer wall of the mounting seat (12) is fixedly connected with one end of the rotating shaft (6), the mounting seat (12) is internally provided with a spring (11), one end of the spring (11) is fixedly connected in the mounting seat (12), the outer wall of the mounting seat (12) is provided with a clamping groove (13), the inner wall of the mounting seat (12) is slidably connected with a connecting shaft (8), the connecting shaft (8) is internally provided with a spring (9), the connecting shaft (8) is internally slidably connected with a steel ball (10), and the outer wall of the connecting shaft (8) is fixedly connected with a double-end stirring paddle (7).

2. The external recycle heat exchange alkylsulfonyl chloride reactor of claim 1, wherein: The detection assembly comprises a temperature sensor (5), one side of the temperature sensor (5) is fixedly connected in the kettle body (1).

3. The external recycle heat exchange alkylsulfonyl chloride reactor of claim 2, wherein: The outer wall of the kettle body (1) is fixedly connected with a jacket (14), one side of the inner wall of the jacket (14) is fixedly connected with a water inlet pipe (16), the other side of the inner wall of the jacket (14) is fixedly connected with a water outlet pipe (15), one end of the water inlet pipe (16) is fixedly connected with a conduit (17), one end of the conduit (17) is fixedly connected with a valve body (18).

4. The external recycle heat exchange alkylsulfonyl chloride reactor of claim 3, wherein: The inner wall of the valve body (18) is slidably connected with a ball valve (20), one side of the outer wall of the ball valve (20) is fixedly connected with a valve (19), one end of the valve body (18) is fixedly connected with a conduit (23), and one end of the conduit (23) is fixedly connected with a delivery pump (22).

5. The external recycle heat exchange alkylsulfonyl chloride reactor of claim 1, wherein: One end of the spring (9) is fixedly connected in the connecting shaft (8), and the other end of the spring (9) is fixedly connected to one side of the outer wall of the steel ball (10).

6. The external recycle heat exchange alkylsulfonyl chloride reactor of claim 1, wherein: The outer wall of the steel ball (10) is slidably connected in the clamping groove (13).

7. The external recycle heat exchange alkylsulfonyl chloride reactor of claim 4, wherein: The outer wall of the ball valve (20) is slidably connected to the outer wall of the sealing sleeve (21), and the outer wall of the valve (19) is rotatably connected in the valve body (18).

8. The external recycle heat exchange alkylsulfonyl chloride reactor of claim 4, wherein: The input end of the delivery pump (22) is fixedly connected with a delivery pipe (24).

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