A hydrogenation kettle stirring device with good stirring effect

Abstract

The utility model discloses a kind of hydrogenation kettle stirring devices of good stirring effect, it is related to hydrogenation reaction kettle technical field, including reaction kettle, the end cap is suitably installed in the top end of the reaction kettle, and the end cap top is fixedly connected with servo motor, the servo motor output is fixedly connected with center rotating rod, and the outer surface of center rotating rod is additionally provided with multiple center stirring components, the auxiliary gear is driven to rotate reversely by meshing with center gear in the utility model, auxiliary gear is adhered to the top of reaction kettle inner wall due to with, auxiliary gear in rotation will promote auxiliary rotating rod along top annular groove with center insertion slot as center, rotate in reaction kettle interior, so that auxiliary stirring component forms composite motion track of rotation + revolution, significantly enhance the shearing effect of material in reaction kettle, further promote edge area high-viscosity material and center rotating stand's forced convection, improve the mixing uniformity of overall material during reaction.

Description

Technical Field

[0001] This utility model relates to the field of hydrogenation reactor technology, specifically a stirring device for a hydrogenation reactor with good stirring effect. Background Technology

[0002] Hydrogenation reactors are key equipment used for catalytic hydrogenation reactions and have significant application prospects in the energy field. They are widely used in various catalytic reactions, high-temperature and high-pressure synthesis, hydrogenation reactions, gas-liquid two-phase reactions, liquid-liquid two-phase reactions, exothermic reactions, composition testing, stability and corrosion testing, fine processing, supercritical reactions, catalyst evaluation and development, and other applications. They are mainly distributed in the fields of petrochemicals, chemistry, pharmaceuticals, polymer synthesis, and metallurgy.

[0003] Most existing reactors mix materials by using a central shaft and stirring blades mounted on its outer wall. In these methods, the central stirring blades create a radially spreading active zone, while materials at the edges tend to stagnate. Although the counter-rotating upper and lower sets of stirring blades enhance axial disturbance, the radial shear force remains concentrated near the shaft, causing the edge materials to only undergo slow circular motion. This flow characteristic results in a significant concentration gradient in the reaction system. Furthermore, the low-flow-rate region may experience temperature deviations between the edge and center regions due to differences in mixing concentration, further exacerbating the unevenness of the reaction process. Therefore, we provide a stirring device for a hydrogenation reactor with superior stirring performance. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a stirring device for a hydrogenation reactor with good stirring effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stirring device for a hydrogenation reactor with good stirring effect, comprising a reactor, an end cover installed at the top of the reactor, a servo motor fixedly connected to the top of the end cover, a central rotating rod fixedly connected to the output end of the servo motor, and multiple central stirring components added to the outer surface of the central rotating rod; multiple auxiliary rotating rods rotatably connected to both sides inside the reactor, and multiple auxiliary stirring components added to the outer surface of the auxiliary rotating rods; a central gear and an auxiliary gear are respectively added to the top of the central rotating rod and the auxiliary rotating rods.

[0006] The reactor is equipped with a hydrogenation pipe, and multiple multi-hole nozzles are added to the top of the hydrogenation pipe.

[0007] As mentioned above, handles are added to both sides of the outer wall of the end cap.

[0008] As described above, the upper and lower regions of the inner wall of the reactor are respectively provided with a top annular groove and a bottom annular groove, and the upper and lower regions of the inner cavity of the reactor are respectively rotatably connected by a top sliding frame and a bottom sliding frame through the top annular groove and the bottom annular groove.

[0009] The top and bottom annular grooves have the same center structure as the central rotating rod, and the central rotating rod is located at the center of the reactor cavity.

[0010] As described above, the upper and lower ends of the auxiliary rotating rod extend into the inner center of the top sliding frame and the bottom sliding frame, respectively, and the upper and lower ends of the auxiliary rotating rod are rotatably connected to the inner center of the top sliding frame and the bottom sliding frame through rotating shafts.

[0011] As described above, a central slot is provided at the center of the bottom of the reactor, and the inner wall of the central slot is in close contact with the outer wall of the bottom end of the central rotating rod.

[0012] As mentioned above, the outer edges of both the auxiliary gear and the central gear are rounded, and the outer edge of the auxiliary gear is in contact with the top of the inner wall of the reactor.

[0013] As mentioned above, the plurality of auxiliary gears are located on both sides of the central gear, and the central gear meshes with the plurality of auxiliary gears on both sides of it.

[0014] Compared with existing technologies, this hydrogenation reactor stirring device with good stirring effect has the following advantages:

[0015] I. In this invention, the central rotating rod is aligned downwards with the central slot, and the end cover is placed on top, so that the central gear at the top of the central rotating rod meshes with the auxiliary gears on both sides of the inner cavity of the reactor. When the servo motor drives the central rotating rod to rotate counterclockwise, under the action of the central gear, multiple auxiliary rotating rods rotate counterclockwise around themselves. The central stirring component and the auxiliary stirring components rotate in opposite directions, forming a shear force field between the central region and the edge region in the inner cavity of the reactor. The central stirring component drives the radial diffusion of the material in the central region, and the auxiliary stirring components enhance the disturbance in the edge region, solving the problem of strong central and weak edge stirring in traditional stirring and reducing the formation of stagnant zones.

[0016] II. The auxiliary gear of this utility model meshes with the central gear and is driven to rotate in the opposite direction. Because the auxiliary gear is in contact with the top of the inner wall of the reactor, the rotating auxiliary gear will push the auxiliary rotating rod to rotate inside the reactor along the top annular groove with the central slot as the center. This makes the auxiliary stirring component form a composite motion trajectory of rotation and revolution, which significantly enhances the shearing effect of the material in the reactor, further promotes the forced convection between the high viscosity material in the edge area and the central rotating position, and improves the overall mixing uniformity of the material during the reaction.

[0017] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a front sectional view of the present invention.

[0020] Figure 3 This is a front-section three-dimensional structural diagram of the reaction vessel of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the bottom of the end cap of this utility model;

[0022] Figure 5 This is a partial three-dimensional structural diagram of the central rotating rod and auxiliary rotating rod of this utility model.

[0023] In the diagram: 1. Reactor; 101. Auxiliary rotating rod; 102. Auxiliary stirring component; 103. Auxiliary gear; 104. Top annular groove; 105. Bottom annular groove; 106. Top sliding frame; 107. Bottom sliding frame; 108. Central slot;

[0024] 2. End cap; 201. Servo motor; 202. Central rotating rod; 203. Central stirring component; 204. Central gear; 205. Handle;

[0025] 3. Annular hydrogenation pipeline; 301. Multi-hole nozzle. Detailed Implementation

[0026] 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.

[0027] like Figure 1-5As shown, this utility model provides a technical solution: a stirring device for a hydrogenation reactor with good stirring effect, including a reactor 1, an end cover 2 installed at the top of the reactor 1, and a servo motor 201 fixedly connected to the top of the end cover 2. A central rotating rod 202 is fixedly connected to the output end of the servo motor 201, and multiple central stirring components 203 are added to the outer surface of the central rotating rod 202. Multiple auxiliary rotating rods 101 are rotatably connected to both sides inside the reactor 1, and multiple auxiliary stirring components 102 are added to the outer surface of the auxiliary rotating rods 101. A central gear 204 and an auxiliary gear 103 are respectively added to the top of the central rotating rod 202 and the auxiliary rotating rods 101.

[0028] The reactor 1 is equipped with an annular hydrogenation pipe 3, and the top of the annular hydrogenation pipe 3 is provided with multiple perforated nozzles 301.

[0029] When the servo motor 201 drives the central rotating rod 202 to rotate counterclockwise, multiple auxiliary rotating rods 101 rotate counterclockwise around themselves, forming a shear force field between the central region and the edge region in the inner cavity of the reactor 1. At the same time, the rotating auxiliary gear 103 will push the auxiliary rotating rod 101 to rotate along the top annular groove 104 around the central slot 108 inside the reactor 1.

[0030] like Figure 1 As shown, handles 205 are added to both sides of the outer wall of the end cap 2.

[0031] The handle 205 on the outer wall of the end cap 2 allows operators to quickly open and close the reactor 1, shortening the time required for equipment maintenance and repair.

[0032] like Figure 3 As shown, the upper and lower regions of the inner wall of the reactor 1 are respectively provided with a top annular groove 104 and a bottom annular groove 105, and the upper and lower regions of the inner cavity of the reactor 1 are respectively rotatably connected to a top sliding frame 106 and a bottom sliding frame 107 through the top annular groove 104 and the bottom annular groove 105.

[0033] The top annular groove 104 and the bottom annular groove 105 have the same center structure as the central rotating rod 202, and the central rotating rod 202 is located at the center of the inner cavity of the reactor 1.

[0034] The concentric structure of the top annular groove 104 and the bottom annular groove 105 ensures that the top sliding frame 106 and the bottom sliding frame 107 revolve stably around the central rotating rod 202, avoiding eccentric shaking and ensuring the stability of the reactor 1 during mixing and stirring.

[0035] like Figure 5As shown, the upper and lower ends of the auxiliary rotating rod 101 extend into the inner center of the top sliding frame 106 and the bottom sliding frame 107, respectively, and the upper and lower ends of the auxiliary rotating rod 101 are rotatably connected to the inner center of the top sliding frame 106 and the bottom sliding frame 107 through rotating shafts.

[0036] The auxiliary rotating rod 101 is rotatably connected to the top sliding frame 106 and the bottom sliding frame 107 to ensure that the auxiliary rotating rod 101 can rotate synchronously around itself as the center when it is revolving.

[0037] like Figure 2 As shown, a central slot 108 is provided at the center of the bottom of the reactor 1, and the inner wall of the central slot 108 is in close contact with the outer wall of the bottom end of the central rotating rod 202.

[0038] The close fit between the central slot 108 at the bottom of the reactor 1 and the central rotating rod 202 can improve the stability of the central rotating rod 202 during high-speed stirring.

[0039] like Figure 5 As shown, the outer edges of both the auxiliary gear 103 and the central gear 204 are rounded, and the outer edge of the auxiliary gear 103 is in contact with the top of the inner wall of the reactor 1.

[0040] The rounded corners of the auxiliary gear 103 and the central gear 204 facilitate the meshing and pairing of the auxiliary gear 103 and the central gear 204 when the central rotating rod 202 is inserted.

[0041] like Figure 5 As shown, multiple auxiliary gears 103 are located on both sides of the central gear 204, and the central gear 204 meshes with the multiple auxiliary gears 103 on both sides.

[0042] The meshing transmission between the central gear 204 and the auxiliary gears 103 on both sides enables synchronous power transmission, ensuring that the central stirring component 203 and the auxiliary stirring component 102 operate in opposite directions in a coordinated manner, thereby enhancing the shearing and convection effects.

[0043] Working principle: After the operator injects the reactants into the reactor 1, the end cap 2 is closed, allowing the bottom end of the central rotating rod 202 to insert into the central slot 108. The top central gear 204 meshes with the auxiliary gears 103 on both sides. Before starting the servo motor 201, the operator introduces hydrogen gas into the inner cavity through the hydrogenation pipe 3 installed at the bottom of the reactor 1. Multiple multi-hole nozzles 301 at the outlet end of the hydrogenation pipe 3 disperse the hydrogen gas into the material in the form of microbubbles. After starting the servo motor 201, the central rotating rod 202 drives the central stirring component 203 to rotate counterclockwise, while simultaneously driving the auxiliary gears 103 to rotate counterclockwise through gear meshing. Because the auxiliary gear 103 is in contact with the top of the inner wall of the reactor 1, when it rotates, it pushes the auxiliary rotating rod 101 to revolve around the central slot 108 along the top annular groove 104 and the bottom annular groove 105, forming a compound motion of rotation and revolution. At this time, the central stirring component 203 throws the material in the center out radially to the edge, and the auxiliary stirring component 102 sweeps the edge area of ​​the inner wall at the same time, forcing the low flow rate material at the edge to convect and mix with the material in the central stirring area, promoting the forced contact between hydrogen bubbles and high viscosity materials, improving the hydrogenation conversion rate, eliminating the phenomenon of strong center and weak edge in traditional stirring, and making the reactants uniformly mixed in the reactor 1.

[0044] 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.

Claims

1. A stirring device for a hydrogenation reactor with good stirring effect, comprising a reactor (1), characterized in that: The reactor (1) is fitted with an end cap (2) at the top, and a servo motor (201) is fixedly connected to the top of the end cap (2). The output end of the servo motor (201) is fixedly connected to a central rotating rod (202), and multiple central stirring components (203) are added to the outer surface of the central rotating rod (202). Multiple auxiliary rotating rods (101) are rotatably connected to both sides inside the reactor (1), and multiple auxiliary stirring components (102) are added to the outer surface of the auxiliary rotating rods (101). A central gear (204) and an auxiliary gear (103) are respectively added to the top of the central rotating rod (202) and the auxiliary rotating rods (101). The reactor (1) is equipped with an annular hydrogenation pipe (3), and multiple perforated nozzles (301) are added to the top of the annular hydrogenation pipe (3).

2. The stirring device for a hydrogenation reactor with good stirring effect according to claim 1, characterized in that: Handles (205) are added to both sides of the outer wall of the end cap (2).

3. The stirring device for a hydrogenation reactor with good stirring effect according to claim 1, characterized in that: The upper and lower regions of the inner wall of the reactor (1) are respectively provided with a top annular groove (104) and a bottom annular groove (105), and the upper and lower regions of the inner cavity of the reactor (1) are respectively rotatably connected to a top sliding frame (106) and a bottom sliding frame (107) through the top annular groove (104) and the bottom annular groove (105). The top annular groove (104) and the bottom annular groove (105) have the same center structure as the central rotating rod (202), and the central rotating rod (202) is located at the center of the inner cavity of the reactor (1).

4. The stirring device for a hydrogenation reactor with good stirring effect according to claim 3, characterized in that: The upper and lower ends of the auxiliary rotating rod (101) extend into the center of the top sliding frame (106) and the bottom sliding frame (107) respectively, and the upper and lower ends of the auxiliary rotating rod (101) are rotatably connected to the center of the top sliding frame (106) and the bottom sliding frame (107) respectively through rotating shafts.

5. The stirring device for a hydrogenation reactor with good stirring effect according to claim 1, characterized in that: The reactor (1) has a central slot (108) at the bottom center, and the inner wall of the central slot (108) is in close contact with the outer wall of the bottom end of the central rotating rod (202).

6. The stirring device for a hydrogenation reactor with good stirring effect according to claim 1, characterized in that: The outer edges of the auxiliary gear (103) and the central gear (204) are rounded, and the outer edge of the auxiliary gear (103) is in contact with the top of the inner wall of the reactor (1).

7. The stirring device for a hydrogenation reactor with good stirring effect according to claim 6, characterized in that: Multiple auxiliary gears (103) are located on both sides of the central gear (204), and the central gear (204) meshes with the multiple auxiliary gears (103) on both sides.

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