Micro-channel reinforced mixing and stirring device for chemical reaction kettle
By using a microchannel enhanced mixing device, the design of microchannels and shallow relief blocks solves the problems of material splashing and low mass transfer efficiency caused by improper stirring speed in chemical reactors, achieving stable dispersion and efficient mixing.
Patent Information
- Application Number
- CN202520595764.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-01
AI Technical Summary
Existing stirring methods in chemical reactors result in material splashing at high speeds, increasing the risk of leakage of corrosive/toxic substances, while at low speeds, stratification is obvious, reducing mass transfer efficiency.
A microchannel enhanced mixing device is adopted, which utilizes the hydrodynamic characteristics of microchannels and shallow relief blocks to promote molecular diffusion by reducing the transfer length and increasing the specific surface area, forming a stable dispersion system, and using the rotation of the stirring rod and nozzle to achieve enhanced mixing.
It improves mixing efficiency, enhances the contact effect between the two phases, reduces material splashing and stratification, and improves mass transfer efficiency.
Smart Images
Figure CN223945684U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to chemical industry reaction kettle technical field, specifically for chemical industry reaction kettle with microchannel reinforced mixing stirring device. BACKGROUND
[0002] The broad sense of reaction kettle is the container with physical or chemical reaction, realizes the heating, evaporation, cooling and low speed mixing of process requirement through the structure design and parameter configuration of container, and widely applies to petroleum, chemical industry, rubber, pesticide, dye, pharmaceutical and food etc.
[0003] Chemical reaction kettle is needed in chemical reaction, and the stirring of the existing chemical reaction kettle is mainly realized by traditional motor, speed reducer and stirring shaft, the centrifugal force is too large when the stirring speed is too fast, the material splashes, the corrosion / toxicity material leakage risk is increased, and the stratification is obvious when the stirring speed is too slow, and the mass transfer efficiency is reduced. Utility model content
[0004] The utility model discloses a chemical industry reaction kettle with microchannel reinforced mixing stirring device to solve the problems in the prior art.
[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] Chemical industry reaction kettle with microchannel reinforced mixing stirring device, including kettle body, the top of kettle body is placed with cover body, and the both sides of cover body top are installed with feeding pipe and pressure relief valve respectively, and the center of kettle body top is connected with mounting bracket, and the inner wall of mounting bracket is installed with frequency conversion drive motor, and the output of frequency conversion drive motor is connected with driving shaft, and the bottom of driving shaft penetrates cover body and extends to the inside of kettle body, and the outside of driving shaft is connected with a plurality of stirring frames, and the inside of stirring frame is connected with a plurality of stirring rods, and the bottom of kettle body outside is fixed with support frame, and the bottom of kettle body is connected with external exhaust pipe, and the side close to kettle body on external exhaust pipe is installed with electromagnetic valve, and the top of one side of kettle body outside is installed with filling pipe, and the outside of kettle body is installed with microchannel mixing part, and microchannel mixing part includes lower ring pipe, upper ring pipe and support plate.
[0007] Preferably, the side, away from the kettle body, of the filling pipe is connected with a flange, and a T-shaped sealing plug is threadedly connected to the top of the inner wall of the feeding pipe.
[0008] Preferably, the top of the kettle body and the bottom of the cover body are connected with sealing flanges, and a plurality of positioning bolts are arranged between the two sealing flanges.
[0009] Preferably, the lower ring pipe and the upper ring pipe are arranged outside the kettle body, and one side of the supporting plate is connected with the supporting frame.
[0010] Preferably, the lower ring pipe is connected with a liquid suction pipe, the liquid suction pipe is connected with a liquid suction pump away from the lower ring pipe, the bottom of the liquid suction pump is connected with the top of the supporting plate, the liquid outlet end of the liquid suction pump is connected with a liquid delivery pipe, the liquid delivery pipe is connected with the upper ring pipe away from the liquid suction pump, and the inner walls of the liquid suction pipe and the liquid delivery pipe are provided with a plurality of shallow relief blocks.
[0011] Preferably, the inner wall of the lower ring pipe is connected with a plurality of lower micro-channel pipes, the lower micro-channel pipes penetrate into the interior of the kettle body away from the inner wall of the lower ring pipe, the inner wall of the upper ring pipe is connected with a plurality of upper micro-channel pipes, and the upper micro-channel pipes extend into the interior of the kettle body away from the inner wall of the upper ring pipe and are connected with a spray head.
[0012] Compared with the prior art, the present application has the following advantages:
[0013] The micro-channel mixing component is used for reducing the transmission length and increasing the specific surface area by utilizing the fluid dynamics characteristics of the micro-channel, so that the molecular diffusion distance is significantly shortened, the mass transfer efficiency is improved, the micro-scale flow of the fluid in the micro-channel promotes the regular distribution of liquid drops or bubbles, a stable dispersion system is formed, the contact between the two phases is strengthened, the shallow relief blocks are further utilized to induce the fluid to generate a transverse velocity component, the chaotic mixing effect is formed, and finally the mixing and stirring are strengthened, and the stirring efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the present application Figure 1 ;
[0015] Figure 2 It is a left view of the present application Figure 1 .
[0016] Figure 3 It is a structural schematic diagram of the micro-channel mixing component of the present application
[0017] Figure 4 It is a structural schematic diagram of the liquid delivery pipe of the present application
[0018] Figure 5 It is a structural cooperation schematic diagram of the variable frequency driving motor, the driving shaft and the stirring frame of the present application.
[0019] In the figure: 1, support frame; 2, kettle body; 3, sealing flange plate; 4, cover body; 5, feeding pipe; 6, mounting frame; 7, pressure relief valve; 8, micro-channel mixing component; 81, upper micro-channel pipe; 82, upper ring pipe; 83, lower micro-channel pipe; 84, lower ring pipe; 85, liquid pumping pipe; 86, support plate; 87, liquid pumping pump; 88, liquid feeding pipe; 89, spray head; 810, shallow relief block; 9, external discharge pipe; 10, filling pipe; 11, variable frequency drive motor; 12, drive shaft; 13, stirring rod; 14, stirring frame. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0021] Please refer to Figures 1-5 The micro-channel reinforced mixing and stirring device for chemical reaction kettle comprises a kettle body 2, the top of the kettle body 2 is provided with a cover body 4, the two sides of the top of the cover body 4 are respectively provided with a feeding pipe 5 and a pressure relief valve 7, the center of the top of the kettle body 2 is connected with a mounting frame 6, the inner wall of the mounting frame 6 is provided with a variable frequency drive motor 11, the output end of the variable frequency drive motor 11 is connected with a drive shaft 12, the bottom of the drive shaft 12 penetrates through the cover body 4 and extends into the inside of the kettle body 2, the outside of the drive shaft 12 is connected with a plurality of stirring frames 14, the inside of the stirring frame 14 is connected with a plurality of stirring rods 13, the bottom of the outside of the kettle body 2 is fixedly provided with a support frame 1, the bottom of the kettle body 2 is connected with an external discharge pipe 9, the external discharge pipe 9 is provided with a solenoid valve on one side close to the kettle body 2, the top of one side of the outside of the kettle body 2 is provided with a filling pipe 10, the outside of the kettle body 2 is provided with a micro-channel mixing component 8, the micro-channel mixing component 8 comprises a lower ring pipe 84, an upper ring pipe 82 and a support plate 86.
[0022] As a technical optimization scheme of the utility model, the side, away from the kettle body 2, of the filling pipe 10 is connected with a flange plate, and the top of the inner wall of the feeding pipe 5 is threadedly connected with a T-shaped sealing plug; through the flange plate, the filling pipe 10 is conveniently butt-jointed and installed with the pipeline outside.
[0023] As a technical optimization scheme of the utility model, the top of the outside of the kettle body 2 and the bottom of the outside of the cover body 4 are both connected with a sealing flange plate 3, a plurality of positioning bolts are arranged through the sealing flange plate 3, and the top of the outside of the positioning bolts is threadedly provided with a positioning nut; through the cooperation of the sealing flange plate 3, the positioning nut and the positioning bolt, the kettle body 2 and the cover body 4 are conveniently positioned and installed.
[0024] As a technical optimization scheme of the utility model, the lower ring pipe 84 and the upper ring pipe 82 are both sleeved outside the kettle body 2, and one side of the supporting plate 86 is connected with the supporting frame 1; the liquid pump 87 can be supported through the supporting plate 86.
[0025] As a technical optimization scheme of the utility model, the lower ring pipe 84 is connected with the liquid pump 85 outside, one side of the liquid pump 85 away from the lower ring pipe 84 is connected with the liquid pump 87, the bottom of the liquid pump 87 is connected with the top of the supporting plate 86, the liquid outlet end of the liquid pump 87 is connected with the liquid delivery pipe 88, one side of the liquid delivery pipe 88 away from the liquid pump 87 is connected with the upper ring pipe 82, and the inner walls of the liquid pump 85 and the liquid delivery pipe 88 are both installed with a plurality of shallow relief blocks 810; the shallow relief blocks 810 can induce the fluid to generate a transverse velocity component and form a chaotic mixing effect.
[0026] As a technical optimization scheme of the utility model, the inner wall of the lower ring pipe 84 is connected with a plurality of lower micro-channel pipes 83, one side of the lower micro-channel pipes 83 away from the inner wall of the lower ring pipe 84 penetrates to the inside of the kettle body 2, the inner wall of the upper ring pipe 82 is connected with a plurality of upper micro-channel pipes 81, one side of the upper micro-channel pipes 81 away from the inner wall of the upper ring pipe 82 extends to the inside of the kettle body 2 and is connected with the spray head 89; the stirring frame 14 will not touch the lower micro-channel pipes 83, the upper micro-channel pipes 81 and the spray head 89 during the rotation process; the inner walls of the lower micro-channel pipes 83 and the upper micro-channel pipes 81 are also provided with the shallow relief blocks 810.
[0027] In use, the utility model first controls the variable frequency drive motor 11 to run by the external control end of the kettle body 2, the liquid material in the outside is added into the kettle body 2 through the filling pipe 10, the solid material is added into the kettle body 2 through the feeding pipe 5, then the kettle body 2 is controlled to run and the liquid pump 87 is controlled to run, the variable frequency drive motor 11 drives the driving shaft 12 to rotate during the running process, the rotation of the driving shaft 12 drives the rotation of the stirring frame 14 and the stirring rod 13, and the mixture of the liquid material and the solid material is stirred (the variable frequency drive motor 11 is in a low-speed running state, and only the reaction kettle has a simple stirring function); the liquid pump 87 runs to draw the liquid in the kettle body 2 from the lower micro-channel pipes 83 to the lower ring pipe 84, then the liquid sequentially passes through the liquid pump 87, the liquid delivery pipe 88, the upper ring pipe 82 and the upper micro-channel pipes 81, and finally is discharged from the spray head 89, in the process of flowing in the lower micro-channel pipes 83 and the upper micro-channel pipes 81, the fluid dynamics characteristics (such as low Reynolds number laminar flow) of the micro-channel are used to shorten the molecular diffusion distance and improve the mass transfer efficiency by reducing the transfer length and increasing the specific surface area, and the micro-scale flow (such as Taylor flow) of the fluid in the micro-channel promotes the regular distribution of liquid drops or bubbles, forms a stable dispersion system, and strengthens the contact between two phases; further using the shallow relief blocks 810, the fluid can be induced to generate a transverse velocity component, a chaotic mixing effect is formed, and finally the mixing and stirring are strengthened, and the stirring efficiency is improved.
[0028] The above merely illustrates the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A micro-channel reinforced mixing and stirring device for chemical reaction kettle, comprising a kettle body (2), characterized in that: The top of the kettle body (2) is provided with a cover body (4), the two sides of the top of the cover body (4) are respectively provided with a feeding pipe (5) and a pressure relief valve (7), the center of the top of the kettle body (2) is connected with a mounting frame (6), the inner wall of the mounting frame (6) is provided with a variable frequency drive motor (11), the output end of the variable frequency drive motor (11) is connected with a driving shaft (12), the bottom of the driving shaft (12) penetrates through the cover body (4) and extends into the inside of the kettle body (2), the outside of the driving shaft (12) is connected with a plurality of stirring frames (14), the inside of the stirring frame (14) is connected with a plurality of stirring rods (13), the bottom of the outside of the kettle body (2) is fixedly provided with a support frame (1), the bottom of the kettle body (2) is connected with an external discharge pipe (9), the electromagnetic valve is arranged on the external discharge pipe (9) and close to one side of the kettle body (2), the top of one side of the outside of the kettle body (2) is provided with a filling pipe (10), the outside of the kettle body (2) is provided with a micro-channel mixing component (8), the micro-channel mixing component (8) comprises a lower ring pipe (84), an upper ring pipe (82) and a support plate (86).
2. The microchannel enhanced mixing and agitation apparatus for use in a chemical reactor according to claim 1, wherein: The side, away from the kettle body (2), of the filling pipe (10) is connected with a flange, and the top of the inner wall of the feeding pipe (5) is threadedly connected with a T-shaped sealing plug.
3. The microchannel enhanced mixing and agitation apparatus for use in a chemical reaction vessel of claim 1, wherein: The top of the outside of the kettle body (2) and the bottom of the outside of the cover body (4) are both connected with sealing flanges (3), a plurality of positioning bolts are arranged through the sealing flanges (3), and the top of the outside of the positioning bolts is threadedly provided with a positioning nut.
4. The microchannel enhanced mixing and agitation apparatus for use in chemical process vessels of claim 1, wherein: The lower ring pipe (84) and the upper ring pipe (82) are both arranged outside the kettle body (2), and one side of the support plate (86) is connected with the support frame (1).
5. The microchannel enhanced mixing and agitation apparatus for use in chemical process vessels of claim 4, wherein: The outside of the lower ring pipe (84) is connected with a liquid suction pipe (85), the side, away from the lower ring pipe (84), of the liquid suction pipe (85) is connected with a liquid suction pump (87), the bottom of the liquid suction pump (87) is connected with the top of the support plate (86), the liquid outlet end of the liquid suction pump (87) is connected with a liquid delivery pipe (88), the side, away from the liquid suction pump (87), of the liquid delivery pipe (88) is connected with the upper ring pipe (82), and the inner walls of the liquid suction pipe (85) and the liquid delivery pipe (88) are both provided with a plurality of shallow relief blocks (810).
6. The microchannel enhanced mixing and agitation apparatus for use in chemical reaction vessels of claim 4, wherein: The inner wall of the lower ring pipe (84) is connected with a plurality of lower micro-channel pipes (83), the side, away from the inner wall of the lower ring pipe (84), of the lower micro-channel pipes (83) penetrates into the inside of the kettle body (2), the inner wall of the upper ring pipe (82) is connected with a plurality of upper micro-channel pipes (81), the side, away from the inner wall of the upper ring pipe (82), of the upper micro-channel pipes (81) extends into the inside of the kettle body (2) and is connected with a spray head (89).