Spherical reaction kettle

Abstract

The utility model provides a spherical reaction kettle, belongs to the technical field of chemical machinery, and solves the problems of low production efficiency and poor product quality of the existing spherical reaction kettle. The reaction kettle comprises a spherical kettle body, a stirring device is obliquely arranged at the bottom of the spherical kettle body, a spoiler spaced from the inner wall of the spherical kettle body is arranged in the spherical kettle body, and two ends of the spoiler are connected with connecting rods fixed on the spherical kettle body. After the spoiler is additionally arranged in the spherical kettle body, a deeper vortex is generated in a flow field, and a liquid medium around the vortex flows towards the bottom of the spherical kettle body, so that a larger suction force is generated, a gas medium in a gas phase is helped to be brought into a liquid phase, a large circulation flow is formed, the residence time of gas in the liquid medium is prolonged, and the reaction efficiency is improved. The gas phase and the liquid phase are uniformly mixed and fully reacted, so that the production efficiency and the product quality are improved.

Description

Technical Field

[0001] This utility model belongs to the field of chemical machinery technology, specifically to a spherical reaction vessel. Background Technology

[0002] A spherical reactor is a specially designed reaction device with a spherical body and an internal stirring device. It is suitable for chemical production, scientific research experiments, and other processes that require mixing, reaction, or separation.

[0003] In the production of tetrafluoroethylene (TEFE), the reactor is the main production equipment. Because the dispersion polymerization process of TEFE involves relatively high operating pressures and temperatures, the technical performance of the reactor directly affects the production efficiency, product quality, and the economic efficiency of the plant. Since spherical reactors are suitable for reaction environments requiring high temperature, high pressure, strong corrosion, or high purity, they are the preferred choice for TEFE production.

[0004] Existing spherical reactors in the stirring process (such as...) Figure 4 The vortex formed in the diagram is relatively small, and the liquid medium in the middle flows upward, while only a small portion of the liquid medium around the vortex flows to the bottom of the equipment, resulting in poor absorption of the gas medium. Furthermore, a large portion of the liquid medium only flows within a local liquid region, which cannot fully absorb the gas medium required for the reaction. This prolongs the mixing time required for the gas and liquid phases, leading to uneven mixing and ultimately resulting in low production efficiency and poor product quality. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this invention is to provide a spherical reactor. By adding a baffle plate inside the spherical reactor, a deep vortex is generated in the flow field, and the liquid medium around the vortex flows towards the bottom of the spherical reactor, thereby generating a large suction force. This helps to bring the gas medium in the gas phase into the liquid phase, forming a large circulation flow. This increases the residence time of the gas in the liquid medium, making the gas and liquid phases mix evenly and react fully, thus improving production efficiency and product quality.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A spherical reactor includes a spherical vessel body, a stirring device is inclinedly arranged at the bottom of the spherical vessel body, and a baffle plate spaced apart from the inner wall of the spherical vessel body is arranged in the spherical vessel body. The two ends of the baffle plate are connected to connecting rods fixed on the spherical vessel body.

[0008] Preferably, a jacket is provided on the outer wall of the spherical vessel, and the jacket is connected to a refrigerant inlet pipe and a refrigerant outlet pipe.

[0009] Preferably, the stirring device includes a socket, on which a stirring shaft is rotatably mounted. A motor is connected to the lower end of the stirring shaft, and stirring blades are connected to the upper end of the stirring shaft. A plug-in socket for accommodating the socket is fixedly mounted on the spherical vessel.

[0010] Preferably, the socket is fixedly provided with a sleeve that is rotatably sleeved on the stirring shaft, and the stirring shaft is fixedly sleeved with a rotating cover that covers the outside of the sleeve and is in clearance fit with the sleeve. The socket is provided with a water inlet channel that communicates with the inner gap of the sleeve and the gap between the sleeve and the rotating cover.

[0011] Preferably, the intersection of the centerline of the stirring shaft and the vertical line passing through the center of the spherical vessel is located below the center of the sphere, and the distance between the intersection and the center of the sphere is 10% to 20% of the internal diameter of the spherical vessel; the angle between the centerline of the stirring shaft and the vertical line passing through the center of the spherical vessel is 21° to 30°.

[0012] Preferably, the spherical vessel is connected to a first thermometer tube for inserting a thermometer.

[0013] Preferably, a manhole is provided at the upper end of the spherical vessel, a cover plate is detachably connected to the manhole, a medium input pipe is provided on the cover plate, and a discharge pipe is provided at the bottom of the spherical vessel.

[0014] Preferably, the cover plate is provided with a second thermometer tube for inserting a thermometer.

[0015] Preferably, the lower end of the spherical vessel is connected to an air inlet pipe.

[0016] Preferably, the baffle is arc-shaped and the center of the baffle coincides with the center of the spherical vessel.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] After adding a baffle plate inside the spherical vessel, a deeper vortex is generated in the flow field, and the liquid medium around the vortex flows towards the bottom of the spherical vessel, thereby generating a greater suction force. This helps to bring the gas medium in the gas phase into the liquid phase, forming a large circulation flow. This increases the residence time of the gas in the liquid medium, making the gas and liquid phases mix evenly and react fully, thus improving production efficiency and product quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A cross-sectional structural schematic diagram provided for an embodiment of this utility model;

[0021] Figure 2 A cross-sectional structural schematic diagram of the socket provided in an embodiment of this utility model from another perspective;

[0022] Figure 3 This is a schematic diagram of the stirring shaft arrangement provided in an embodiment of the present utility model;

[0023] Figure 4 A schematic diagram of the stirring flow field of the turbulent plate provided in this embodiment of the utility model;

[0024] Figure 5 A schematic diagram of a stirred flow field with a baffle provided for an embodiment of this utility model.

[0025] Reference numerals: 1-Spherical vessel body; 2-Jacket; 3-Air inlet pipe; 4-Ear seat; 5-Plug-in socket; 6-Water delivery pipe; 7-Stirring shaft; 8-Socket; 9-Discharge pipe; 10-Refrigerant input pipe; 11-First thermometer insertion tube; 12-Refrigerant output pipe; 13-Media input pipe; 14-Lifting lug; 15-Second thermometer insertion tube; 16-Cover plate; 17-Manhole; 18-Connecting rod; 19-Baffle plate; 20-Stirring blade; 21-Rotating cover; 22-Cooling chamber; 23-Water inlet channel; 24-Shell. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] The following is combined with Figures 1-5 This utility model will be described in detail. Example

[0030] A spherical reactor includes a spherical vessel body 1, a stirring device is inclinedly arranged at the bottom of the spherical vessel body 1, a baffle plate 19 spaced apart from the inner wall of the spherical vessel body 1 is arranged in the spherical vessel body 1, and connecting rods 18 fixed on the spherical vessel body 1 are connected to both ends of the baffle plate 19.

[0031] After adding a baffle plate 19 inside the spherical vessel body 1, as follows: Figure 5 As shown, a deep vortex is generated in the flow field, and the liquid medium around the vortex flows towards the bottom of the spherical vessel 1, thereby generating a large suction force. This helps to bring the gas medium in the gas phase into the liquid phase, forming a large circulation flow. This increases the residence time of the gas in the liquid medium, making the gas and liquid phases mix evenly and react fully, thus improving production efficiency and product quality.

[0032] The device includes at least two baffles 19, which are evenly arranged around the circumference of the spherical vessel body 1. The baffles 19 are arc-shaped, and their centers coincide with the center of the spherical vessel body 1.

[0033] A jacket 2 is provided on the outer wall of the spherical vessel 1. The jacket 2 is connected to a refrigerant inlet pipe 10 and a refrigerant outlet pipe 12. The jacket 2 circulates refrigerant through the refrigerant inlet pipe 10 and the refrigerant outlet pipe 12 to control the temperature of the spherical vessel 1 and prevent the reaction temperature from being too high and affecting the reaction.

[0034] The stirring device includes a socket 8, on which a stirring shaft 7 is rotatably mounted. A motor (not shown in the figure) is connected to the lower end of the stirring shaft 7, and stirring blades 20 are connected to the upper end of the stirring shaft 7. A socket 5 for accommodating the socket 8 is fixedly mounted on the spherical vessel 1. The motor drives the stirring shaft 7 to rotate, thereby causing the stirring blades 20 to stir. The stirring shaft 7 is inserted into the socket 5 through the socket 8. For later disassembly, the stirring shaft 7 and stirring blades 20 can be pulled out of the spherical vessel 1 as a whole, facilitating disassembly and maintenance.

[0035] The connector 5 and socket 8 are detachably connected by a screw. A sealing ring is also provided between the connector 5 and socket 8 to prevent leakage. A cooling chamber 22 is provided in the socket 8, and the cooling chamber 22 is connected to a water delivery pipe 6. There are two water delivery pipes 6, one for water inlet and one for water outlet, so as to circulate and cool the socket 8, reducing the heat generated by the rotation friction of the stirring shaft 7 and the heat of the medium.

[0036] A sleeve 24 is fixedly mounted on the socket 8 and rotatably fitted onto the stirring shaft 7. A rotating cover 21 is fixedly mounted on the stirring shaft 7, covering the outside of the sleeve 24 and fitting with the sleeve 24 with a clearance. A water inlet channel 23 is provided in the socket 8, communicating with the inner clearance of the sleeve 24 and the clearance between the sleeve 24 and the rotating cover 21. The rotating cover 21 rotates synchronously with the stirring shaft 7, and the rotating cover 21 and the sleeve 24 can rotate relative to each other. A sealing medium (such as water) can be introduced into the water inlet channel 23. The sealing medium enters from the inner clearance of the sleeve 24 into the clearance between the sleeve 24 and the rotating cover 21 (because the clearance is small, only a small amount of the sealing medium will be discharged), thereby preventing the medium from entering the clearance and increasing friction, ensuring the normal rotation of the stirring shaft 7, and also preventing medium leakage, thus achieving the sealing function.

[0037] The intersection of the centerline of the stirring shaft 7 and the vertical line passing through the center of the spherical vessel 1 is located below the center of the sphere, and the distance between the intersection and the center of the sphere (i.e., Figure 3 In this context, b) represents 10% to 20% of the internal diameter of the spherical vessel 1; the angle between the centerline of the stirring shaft 7 and the vertical line passing through the center of the spherical vessel 1 (i.e., Figure 3 In the example, a) is 21°~30°. When the stirring rotates at high speed, turbulent boiling and storm vortex phenomena are formed, which not only can make the materials fully mixed, but also can draw the gas above the liquid surface into the liquid medium, avoid uneven mixing of materials, and further improve the stirring and mixing effect, heat transfer efficiency and product quality.

[0038] The spherical vessel body 1 is connected to a first thermometer tube 11 for inserting a thermometer. The thermometer inserted into the first thermometer tube 11 is used to detect the temperature of the liquid and monitor whether the temperature meets the production requirements.

[0039] A manhole 17 is provided at the upper end of the spherical vessel 1, and a cover plate 16 is detachably connected to the manhole 17. A medium input pipe 13 is provided on the cover plate 16, and a discharge pipe 9 is provided at the bottom of the spherical vessel 1. The cover plate 16 is connected to the manhole 17 by a screw and nut. Opening the cover plate 16 allows access to the spherical vessel 1 through the manhole 17 for cleaning operations. Liquid medium can be introduced into the spherical vessel 1 through the medium input pipe 13. After the reaction is completed, the material is discharged by opening the discharge pipe 9. The upper end face of the discharge pipe 9 is provided with a guide surface inclined towards the opening of the discharge pipe 9. This guide surface forms an angle of 1° to 3° with the horizontal line. The inner wall of the spherical vessel 1 is polished as a whole, and the product in the vessel can be completely discharged through the guide surface, without any product residue at the bottom of the vessel affecting the quality of subsequent products.

[0040] The cover plate 16 is provided with a second thermometer tube 15 for inserting a thermometer. The thermometer inserted into the second thermometer tube 15 is used to detect the temperature of the gas and monitor whether the temperature meets the production requirements.

[0041] The lower end of the spherical vessel 1 is connected to an inlet pipe 3, which extends below the liquid surface to facilitate preliminary mixing. Tetrafluoroethylene gas (a gaseous medium) needs to be introduced into the inlet pipe 3 so that the liquid medium can mix with the tetrafluoroethylene gas for the reaction.

[0042] The cover plate 16 is provided with lifting lugs 14, which facilitates the movement of the cover plate 16 using lifting equipment. At least two lugs 4 are fixedly connected to the outer wall of the jacket 2. The lugs 4 can be connected to support columns to lift the entire spherical vessel 1 to a certain height, which facilitates the installation of structures such as motors.

[0043] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A spherical reactor, comprising a spherical reactor body (1), wherein a stirring device is inclinedly disposed at the bottom of the spherical reactor body (1), characterized in that, The spherical vessel (1) is provided with a baffle plate (19) spaced apart from the inner wall of the spherical vessel (1), and the two ends of the baffle plate (19) are connected to a connecting rod (18) fixed on the spherical vessel (1).

2. The spherical reactor according to claim 1, characterized in that, The outer wall of the spherical vessel (1) is provided with a jacket (2), and the jacket (2) is connected to a refrigerant inlet pipe (10) and a refrigerant outlet pipe (12).

3. A spherical reactor according to claim 1, characterized in that, The stirring device includes a socket (8), a stirring shaft (7) is rotatably mounted on the socket (8), a motor is connected to the lower end of the stirring shaft (7), a stirring blade (20) is connected to the upper end of the stirring shaft (7), and a plug-in seat (5) for accommodating the socket (8) is fixedly mounted on the spherical vessel body (1).

4. A spherical reactor according to claim 3, characterized in that, The socket (8) is fixedly provided with a sleeve (24) that is rotatably sleeved on the stirring shaft (7). The stirring shaft (7) is fixedly sleeved with a rotating cover (21) that covers the outside of the sleeve (24) and is in clearance fit with the sleeve (24). The socket (8) is provided with a water inlet channel (23) that communicates with the inner gap of the sleeve (24) and the gap between the sleeve (24) and the rotating cover (21).

5. A spherical reactor according to claim 3, characterized in that, The intersection of the center line of the stirring shaft (7) and the vertical line passing through the center of the spherical vessel (1) is located below the center of the sphere, and the distance between the intersection and the center of the sphere is 10% to 20% of the internal diameter of the spherical vessel (1); the angle between the center line of the stirring shaft (7) and the vertical line passing through the center of the spherical vessel (1) is 21° to 30°.

6. A spherical reactor according to claim 1, characterized in that, The spherical vessel body (1) is connected to a first thermometer tube (11) for inserting a thermometer.

7. A spherical reactor according to claim 1, characterized in that, The upper end of the spherical vessel (1) has a manhole (17), a cover plate (16) is detachably connected to the manhole (17), a medium input pipe (13) is provided on the cover plate (16), and a discharge pipe (9) is provided at the bottom of the spherical vessel (1).

8. A spherical reactor according to claim 7, characterized in that, The cover plate (16) is provided with a second thermometer tube (15) for inserting a thermometer.

9. A spherical reactor according to claim 1, characterized in that, The lower end of the spherical vessel (1) is connected to an air inlet pipe (3).

10. A spherical reactor according to claim 1, characterized in that, The baffle (19) is arc-shaped and the center of the baffle (19) coincides with the center of the spherical vessel (1).

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