Static mixer for dynamic tubular reactor

Abstract

The utility model relates to a static mixer, in particular to a static mixer for a dynamic tubular reactor, which comprises a main body and a heat exchange tube, the heat exchange tube is arranged in the main body, the outer wall of the heat exchange tube and the inner wall of the main body form a heat exchange channel, and the inner cavity of the heat exchange tube is a reaction channel; fins, a first stirrer and a second stirrer are arranged on the heat exchange tube, the fins, the first stirrer and the second stirrer are uniformly distributed along the axial direction of the heat exchange tube, and the fins are uniformly arranged on the surface of the heat exchange tube; the first stirrer penetrates through the heat exchange tube and is communicated with the reaction channel, and the second stirrer penetrates through the heat exchange tube and is communicated with the reaction channel. The first stirrers are arranged on one side of the heat exchange pipe, and the second stirrers and the first stirrers are arranged on the other side of the heat exchange pipe in a one-to-one correspondence mode. According to the reactor, the reaction requirements of high transfer efficiency and high mass transfer efficiency are met.

Description

Technical Field

[0001] The utility model relates to a static mixer, in particular to a static mixer used for a dynamic tubular reactor. Background Art

[0002] Traditional tubular reactors without static mixers are mostly suitable for liquid-liquid reactions or gas-liquid reactions with good fluidity, but are not suitable for reactions involving viscous liquids or solids. They also have only a single heat exchange channel, resulting in low heat transfer efficiency, low material mixing, uneven product quality, poor stability, and serious material waste. Utility Model Content

[0003] The purpose of the utility model is to provide a static mixer for a dynamic tubular reactor, which solves the problem that the traditional tubular reactor is not suitable for reactions with viscous liquids and solids involved or generated.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is:

[0005] A static mixer for a dynamic tubular reactor comprises a main body and a heat exchange tube, wherein the heat exchange tube is placed in the main body, the outer wall of the heat exchange tube and the inner wall of the main body form a heat exchange channel, and the inner cavity of the heat exchange tube is a reaction channel; the heat exchange tube is provided with fins, a first agitator and a second agitator, the fins, the first agitator and the second agitator are evenly distributed along the axial direction of the heat exchange tube, and the fins are evenly arranged on the surface of the heat exchange tube; the first agitator penetrates the heat exchange tube and communicates with the reaction channel, and the second agitator is connected to the reaction channel through the traditional heat exchange tube.

[0006] Furthermore, the first agitator is arranged on one side of the heat exchange tube, and the second agitator is arranged on the other side of the heat exchange tube in a one-to-one correspondence with the first agitator.

[0007] Furthermore, a stirring assembly is provided inside the heat exchange tube, and the stirring assembly includes a drive motor, a stirring shaft and blades; the stirring shaft is placed in the inner cavity of the main body, and a plurality of blades are evenly arranged on the stirring shaft along the axial direction; the stirring shaft is connected to the driving end of the drive motor.

[0008] Furthermore, the first agitator is arranged between two adjacent blades; the heat exchange tube is provided with a plurality of first connecting holes, and the first agitator is fixed to the heat exchange tube through the first connecting holes.

[0009] Furthermore, the second agitator and the blades are staggered, the heat exchange tube is provided with a plurality of second connection holes, and the second agitator is fixed to the heat exchange tube through the second connection holes.

[0010] Furthermore, the second agitator is integrally formed and includes a positioning portion and a connecting portion. The positioning portion is provided at both ends of the connecting portion. The positioning portion is adapted to the second connecting hole, and the connecting portion is attached to the inner wall of the heat exchange tube.

[0011] Furthermore, thermal resistors for monitoring the reaction temperature are respectively provided on both sides of the main body, and sensing ends of the thermal resistors are inserted into the heat exchange channel for monitoring and adjusting the reaction temperature.

[0012] Furthermore, fixing parts are respectively provided on both sides of the main body, the middle part of the fixing part is connected to the stirring shaft through a bearing, and the outer side of the fixing part is connected to the stirring shaft through an outer spacer.

[0013] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0014] This utility model provides a paddle on the agitator shaft, adds a first agitator and a second agitator, and the first agitator and the second agitator are respectively adapted to the paddle. During the rotation of the paddle, it passes through the gap between the first agitator and the second agitator in sequence, which can highly shear and disperse the material without dead angles and with high uniformity. This greatly improves the mass transfer and transmission effect of the reaction and increases universality. This utility model achieves the reaction requirements of high transmission efficiency and high mass transfer efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Fig. 1 A cross-sectional view of a static mixer used in a dynamic tubular reactor.

[0016] Fig. 2 Schematic diagram of the first agitator and the second agitator.

[0017] Fig. 3 Schematic diagram of a static mixer used in a dynamic tubular reactor. DETAILED DESCRIPTION

[0018] like Figs. 1 to 3As shown, a static mixer for dynamic tubular reactor, including a main body 1 and a heat exchange pipe 2, the heat exchange pipe 2 is placed in the main body 1, the outer wall of the heat exchange pipe 2 and the inner wall of the main body 1 form a heat exchange channel 3, the inner cavity of the heat exchange pipe 2 is a reaction channel 4; The fin 5, the first stirrer 6 and the second stirrer 7 are arranged on the heat exchange pipe 2, the fin 5, the first stirrer 6 and the second stirrer 7 are uniformly distributed along the axial direction of the heat exchange pipe 2, the fin 5 is uniformly arranged on the surface of the heat exchange pipe 2; The first stirrer 6 penetrates the heat exchange pipe 2 and communicates with the reaction channel 4, the second stirrer 7 penetrates the heat exchange pipe 2 and communicates with the reaction channel 4. The first stirrer 6 is arranged on one side of the heat exchange pipe 2, and the second stirrer 7 is arranged on the other side of the heat exchange pipe 2 corresponding to the first stirrer 6. The reactant is added into the reaction channel 4 through the feeding port, and then the heat dissipation medium is heated into the heat exchange channel 3, the reactant will be highly sheared and dispersed under the action of the first stirrer 6 and the second stirrer 7, and the shearing has no dead angle, the uniformity is high, and the mass transfer and transmission effect of the reaction is greatly improved.

[0019] The heat exchange pipe 2 is provided with a stirring assembly, the stirring assembly includes a driving motor, a stirring shaft 11 and a paddle 12; The stirring shaft 11 is placed in the inner cavity of the main body, and a plurality of paddles 12 are uniformly arranged on the stirring shaft 11 in the axial direction; The stirring shaft 11 is connected with the driving end of the driving motor. After the driving motor is started, the stirring shaft 11 rotates under the driving of the driving motor, and the reactant in the reaction channel 4 is stirred. The first stirrer 6 is arranged between adjacent two paddles 12; The heat exchange pipe 2 is provided with a plurality of first connecting holes, and the first stirrer 6 is fixed on the heat exchange pipe 2 through the first connecting holes. The second stirrer 7 is distributed with the paddle 12, and the heat exchange pipe 2 is provided with a plurality of second connecting holes, and the second stirrer 7 is fixed on the heat exchange pipe 2 through the second connecting holes.

[0020] While the stirring shaft 11 rotates, the plurality of paddles 12 on the stirring shaft 11 also rotate, each paddle 12 is distributed between adjacent two first stirrers 6, and the second stirrer 7 is distributed with the paddle 12, so that when the reactant rotates under the driving of the stirring shaft 11, the reactant will be sheared and dispersed under the action of the first stirrer 6 and the second stirrer 7, and the reactant can be highly sheared and dispersed, so that the device can be adapted to the reaction with viscous liquid, solid participation or generation, and the universality of the device is increased.

[0021] The second stirrer 7 is integrally formed and includes a positioning part and a connecting part, the positioning part is arranged at both ends of the connecting part, the positioning part is matched with the second connecting hole, and the connecting part is attached to the inner wall of the heat exchange pipe 2. The connecting part is located in the reaction channel 4 and participates in the stirring of the reactant, so that the highly viscous material can be highly sheared and dispersed.

[0022] The main body 1 is provided with a thermal resistor 13 for monitoring the reaction temperature on both sides. The sensing end of the thermal resistor 13 is inserted into the heat exchange channel 3 for monitoring and adjusting the reaction temperature. The main body 1 is provided with a fixing part 21 on both sides. The middle part of the fixing part 21 is connected to the stirring shaft 11 through a bearing 22. The bearings 22 are used on both sides of the main body 1 for support, which can ensure that the operation of the equipment is more stable. The outer side of the fixing part 21 is connected to the stirring shaft 11 through an outer spacer 23. The outer spacer 23 is used to isolate external dust and extend the service life of the components. The fixing part 21 is provided with a seal 24, which is made of polytetrafluoroethylene. It has both chemical corrosion resistance and good self-lubricating effect, thereby improving the service life.

[0023] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A static mixer for a dynamic tubular reactor, characterized in that: It includes a main body and a heat exchange tube, the heat exchange tube is placed in the main body, the outer wall of the heat exchange tube and the inner wall of the main body form a heat exchange channel, and the inner cavity of the heat exchange tube is a reaction channel; the heat exchange tube is provided with fins, a first agitator and a second agitator, the fins, the first agitator and the second agitator are evenly distributed along the axial direction of the heat exchange tube, and the fins are evenly arranged on the surface of the heat exchange tube; the first agitator penetrates the heat exchange tube and is connected to the reaction channel, and the second agitator penetrates the heat exchange tube and is connected to the reaction channel.

2. A static mixer for a dynamic tubular reactor according to claim 1, characterized in that: The first agitator is arranged on one side of the heat exchange tube, and the second agitator is arranged on the other side of the heat exchange tube in a one-to-one correspondence with the first agitator.

3. A static mixer for a dynamic tubular reactor according to claim 1, characterized in that: A stirring assembly is provided inside the heat exchange tube, and the stirring assembly includes a drive motor, a stirring shaft and blades; the stirring shaft is placed in the inner cavity of the main body, and a plurality of blades are evenly arranged on the stirring shaft along the axial direction; the stirring shaft is connected to the driving end of the drive motor.

4. A static mixer for a dynamic tubular reactor according to claim 3, characterized in that: The first agitator is arranged between two adjacent blades; a plurality of first connecting holes are provided on the heat exchange tube, and the first agitator is fixed on the heat exchange tube through the first connecting holes.

5. A static mixer for a dynamic tubular reactor according to claim 3, characterized in that: The second agitator and the blades are staggered and distributed, and a plurality of second connecting holes are provided on the heat exchange tube, through which the second agitator is fixed to the heat exchange tube.

6. A static mixer for a dynamic tubular reactor according to claim 5, characterized in that: The second agitator is integrally formed and includes a positioning portion and a connecting portion. The positioning portion is provided at both ends of the connecting portion. The positioning portion is adapted to the second connecting hole. The connecting portion is attached to the inner wall of the heat exchange tube.

7. A static mixer for a dynamic tubular reactor according to claim 1, characterized in that: Thermal resistors for monitoring the reaction temperature are respectively provided on both sides of the main body, and the sensing ends of the thermal resistors are inserted into the heat exchange channel for monitoring and adjusting the reaction temperature.

8. A static mixer for a dynamic tubular reactor according to claim 1, characterized in that: Both sides of the main body are provided with fixing parts respectively. The middle part of the fixing part is connected to the stirring shaft through a bearing, and the outer side of the fixing part is connected to the stirring shaft through an outer spacer.

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