Chemical reaction stirring device
By setting the coolant flow structure and heat conduction pipe on the agitator of the chemical reaction stirring device, combined with the rotational action of the agitator, the problems of blind spots and low cooling efficiency in traditional devices are solved, and more efficient reactant mixing and rapid cooling are achieved. .
Patent Information
- Application Number
- CN202420472469.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-03-12
AI Technical Summary
Traditional chemical reaction devices have blind spots during the reaction process, which affects the mixing effect and reaction speed of the reaction substances. At the same time, it is difficult to cool down quickly, which poses safety hazards.
A chemical reaction stirring device is designed, and a coolant flow structure is arranged on the stirrer, which absorbs heat through the heat conducting pipe and quickly takes away heat through the stirrer. At the same time, the agitator is rotated by a driving device to improve the mixing effect of the reaction substance.
The device does not need to install a cooling tube on the inner wall of the reaction tank, avoid blind spots, improve the mixing effect and reaction speed of the reaction substances, and can quickly cool down, improving reaction safety and efficiency.
Smart Images
Figure CN222518569U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of chemical reaction devices, in particular to a chemical reaction stirring device. Background Art
[0002] There are many exothermic or even strongly exothermic chemical reactions, which generally have dangerous characteristics such as explosion, corrosion, and oxidation. During the reaction, the heat in the reaction device needs to be quickly dissipated to reduce side reactions and ensure that the reaction process is safe and controllable. Traditional reaction devices usually set spiral cooling pipes in the reaction vessel or lay cooling pipes parallel to the axis of the container, and circulate coolant in the cooling pipes to achieve the purpose of cooling. The fixed structure inside the reaction device of this type of structure is relatively complex, and there are many dead corners, which affects the mixing of the reactants and is not conducive to rapid and balanced chemical reactions. Utility Model Content
[0003] In order to solve the deficiencies of the prior art, the utility model provides a chemical reaction stirring device, which can improve the mixing effect and reaction speed of reactants and can quickly cool the interior of a reaction tank.
[0004] In order to achieve the purpose of this utility model, the following scheme is proposed:
[0005] A chemical reaction stirring device comprises a reaction tank, a stirrer and a driving device.
[0006] A jacket is provided on the outside of the reaction tank, and a coolant is circulated in the jacket. The jacket is connected with a water inlet pipe and a drain pipe. The reaction tank is connected with a first feed pipe and a second feed pipe, and a discharge pipe is provided at the rear end of the reaction tank.
[0007] The agitator is coaxially arranged inside the reaction tank. The agitator includes a central tube, and a plurality of heat conducting tubes are arranged in a circular array outside the central tube. The front ends of the heat conducting tubes are connected to the central tube, and the rear ends of the heat conducting tubes and the rear end of the central tube are the outlet and inlet of the coolant respectively.
[0008] The driving device is arranged outside the reaction tank and is used for driving the agitator to rotate around the axis.
[0009] The beneficial effects of the utility model are: there is no need to set a cooling pipe on the inner wall of the reaction tank, thereby avoiding dead corners inside the reaction tank, so as to improve the mixing effect of the reaction substances; the device can not only improve the mixing effect and reaction speed of the reaction substances, but also quickly cool the inside of the reaction tank by setting a coolant circulation structure on the agitator. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.
[0011] Figure 1 Shown is a schematic diagram of the overall structure of the present application.
[0012] Figure 2 A schematic diagram of the structure of the rear end of the reaction tank is shown.
[0013] Figure 3 A schematic structural diagram of the side of the reaction tank is shown.
[0014] Figure 4 A schematic diagram of a preferred structure of an agitator is shown.
[0015] Figure 5 A cross-sectional view along the vertical direction of the overall structure of the present application is shown.
[0016] Figure 6 Shows Figure 5 A partial enlarged view of point A in the middle.
[0017] Figure 7 Shows Figure 5 A partial enlarged view of point B in the middle.
[0018] Figure 8 Shows Figure 5 A partial enlarged view of point C in the middle.
[0019] Markings in the figure: reaction tank -1, jacket -11, drain pipe -111, water inlet pipe -112, drainage pipe -113, first feed pipe -12, second feed pipe -13, discharge pipe -14, center pipe -2, heat conduction pipe -21, paddle -22, push plate -23, confluence chamber -24, round pipe -25, annular cavity -251, drive device -3, adapter -4, first conduit -41, second conduit -42. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings, but the embodiments described in the utility model are only part of the embodiments of the utility model, rather than all the embodiments.
[0021] like Figures 1 to 5 As shown, a chemical reaction stirring device includes: a reaction tank 1, a stirrer and a driving device 3.
[0022] Specifically, in this embodiment, the reaction tank 1 is set in a horizontal state, and the reaction tank 1 can also be set in a vertical state according to the use requirements. A jacket 11 is provided on the outside of the reaction tank 1, and the jacket 11 is used to circulate the cooling liquid. The jacket 11 is connected to a drain pipe 111 and a water inlet pipe 112. The reaction tank 1 is connected to a first feed pipe 12 and a second feed pipe 13, and a discharge pipe 14 is provided at the rear end of the reaction tank 1.
[0023] Specifically, the agitator is coaxially arranged inside the reaction tank 1, and the agitator includes a central tube 2, and a plurality of groups of heat-conducting tubes 21 are arranged in a circular array on the outside of the agitator. The front ends of the heat-conducting tubes 21 are connected to the central tube 2, and the rear ends of the heat-conducting tubes 21 and the rear ends of the central tube 2 are the outlet and inlet of the coolant respectively. Conversely, the rear end of the central tube 2 can also be used as the outlet of the coolant, and the rear end of the heat-conducting tube 21 can be used as the inlet of the coolant.
[0024] Specifically, the driving device 3 is arranged outside the reaction tank 1, and is used to drive the agitator to rotate around the axis.
[0025] When in use, the first feed pipe 12 and the second feed pipe 13 are used to inject substances participating in the reaction into the reactor 1, and different pipes are used to inject the reaction substances, the purpose of which is to facilitate the injection of different reaction substances and control the injection amount of different reaction substances; before the reaction starts, the coolant can be injected into the jacket 11 through the water inlet pipe 112, and the coolant can be injected into the center tube 2 separately. The coolant injected into the jacket 11 will absorb the heat near the inner wall of the reactor 1 through the side wall of the reactor 1, and the coolant after absorbing the heat will be discharged from the drain pipe 111; the coolant entering the center tube 2 will flow out through the heat conduction pipe 21, and the outer walls of the center tube 2 and the heat conduction pipe 21 will absorb heat during the flow process, and the coolant absorbs heat by heat conduction, and the agitator is arranged in the middle of the reactor 1, so the heat in the middle of the reactor 1 can be quickly taken away by the agitator. Because the heat pipe 21 is arranged outside the central tube 2, when the driving device 3 drives the agitator to rotate, the reaction materials will be stirred through the heat pipe 21, so that different reaction materials are quickly mixed, which helps to increase the speed of the chemical reaction. During the rotation of the agitator, the heat pipe 21 is also constantly in contact with the surrounding reaction materials to accelerate the heat conduction speed. This structure does not require a heat dissipation pipe to be arranged on the inner wall of the reaction tank 1, effectively avoiding the existence of dead corners inside the reaction tank 1, and can effectively improve the reaction efficiency, making the reaction more thorough and faster.
[0026] Preferably, Figures 1 to 3 and Figure 5 As shown, the first feed pipe 12 and the second feed pipe 13 are both arranged at the front end of the reaction tank 1, so that the reaction material can react in the process of flowing from the front end to the rear end of the reaction tank 1, and the reacted material can be discharged from the discharge pipe 14 at the rear end of the reaction tank 1, thereby realizing uninterrupted reaction and continuous output, which is higher than the single reaction efficiency of traditional devices.
[0027] Further preferably, the feeding directions of the first feed pipe 12 and the second feed pipe 13 are tangent to the inner wall of the reaction tank 1, and the feeding direction is consistent with the rotation direction of the agitator, so that the materials can be quickly mixed after entering the reaction tank 1 to increase the reaction speed. Further preferably, the first feed pipe 12 and the second feed pipe 13 are respectively arranged on both sides of the reaction tank 1.
[0028] Preferably, Figure 3 and Figure 8 As shown, a spiral drainage pipe 113 is provided inside the jacket 11 to guide the coolant to flow along a predetermined trajectory in the jacket 11 to achieve a circulating flow effect. The drainage pipe 111 is located on the top surface of the reaction tank 1, and the water inlet pipe 112 is located on the bottom surface of the reaction tank 1. Generally, the density of low-temperature materials is slightly higher, and the heat exchange is more sufficient if the bottom is in and the top is out. If the top-in and bottom-out method is adopted, the heated heat exchange medium will have some upward reflux, affecting the cooling effect.
[0029] Preferably, Figure 4 As shown, each group of heat-conducting tubes 21 is provided with multiple tubes at intervals to increase the flow rate of the coolant and improve the heat dissipation efficiency, and they are all parallel to the central tube 2 for easy arrangement.
[0030] Further preferably, Figure 4 As shown, a paddle 22 is provided between the outer wall of the central tube 2 and each group of heat-conducting tubes 21, and the paddle 22 is inclined relative to the axis of the central tube 2, so as to improve the stirring effect on the reaction material, accelerate the mixing speed of the reaction material, and thus improve the reaction speed. The paddle 22 is inclined toward the side wall of the rear end of the reaction tank 1 toward the rotation direction of the agitator, so that the paddle 22 can be used to stir the reaction material while pushing the reaction material to move toward the rear end of the reaction tank 1, so that the reaction material can make a regular spiral motion in the reaction tank 1, and avoid the reacted material from flowing into the front end of the reaction tank 1 to participate in the reaction again. The paddle 22 is arranged between each adjacent group of heat-conducting tubes 21, which can effectively reduce the outline size of the agitator to adapt to a smaller size of the reaction tank 1.
[0031] Preferably, Figure 3 and Figure 4 As shown, a push plate 23 is provided on the outside of the agitator at a position corresponding to the discharge pipe 14, which is used to push the reaction material to flow in the direction of rotation of the agitator. Therefore, the push plate 23 can be parallel to the axis of the agitator or inclined relative to the axis of the agitator.
[0032] As a preferred solution, a plurality of push plates 23 are arranged in a circumferential array along the agitator. The push plates 23 can not only make the reaction materials flow regularly in the reaction tank 1, but also can be used to send the reaction materials into the discharge pipe 14 to quickly discharge the reacted materials.
[0033] As a further preferred solution, the communication port between the discharge pipe 14 and the reaction tank 1 is arranged along the tangent direction of the inner wall of the reaction tank 1 and is in the same direction as the rotation direction of the agitator.
[0034] Preferably, Figures 4 to 8 As shown, the front and rear ends of each group of heat-conducting tubes 21 on the central tube 2 are provided with a merging chamber 24 connected to the heat-conducting tubes 21; the merging chamber 24 at the front end of the heat-conducting tube 21 is connected to the front end of the central tube 2; the merging chamber 24 at the rear end of the heat-conducting tube 21 is arranged on the outer wall of the central tube 2, and a circular tube 25 is sleeved on the outer rear end of the central tube 2, and an annular cavity 251 is provided between the inner wall of the circular tube 25 and the central tube 2, and the annular cavity 251 is connected to the merging chamber 24 at the rear end of the heat-conducting tube 21, and the ends of the circular tube 25 and the central tube 2 are rotatably arranged on the adapter 4, and a rotating sealing structure is provided between the circular tube 25 and the central tube 2 and the adapter 4, and a rubber sealing ring can be used to realize the rotating sealing, and the end of the adapter 4 is provided with a first conduit 41 connected to the rear end of the central tube 2, and the side wall of the adapter 4 is provided with a second conduit 42 connected to the annular cavity 251, so that the coolant flowing in the agitator can be circulated in and out through the first conduit 41 and the second conduit 42.
[0035] Further preferably, the driving device 3 includes a driving motor and a transmission system. The transmission system is a belt drive, wherein a driving wheel is arranged on the driving motor, and a driven wheel is sleeved on the outside of the circular tube 25. The driving device 3 drives the circular tube 25 to rotate, thereby driving the agitator as a whole to rotate. During the rotation of the agitator, the circular tube 25 and the center tube 2 both rotate relative to the adapter 4, while the positions of the first conduit 41 and the second conduit 42 remain fixed.
[0036] The above is only a preferred embodiment of the utility model, and does not mean that it is the only one or limit the utility model. Those skilled in the art should understand that various changes or equivalent replacements made to the utility model without departing from the scope of the utility model are within the scope of protection of the utility model.
Claims
1. A chemical reaction stirring device, characterized in that: include: A jacket (11) is provided on the outside of the reaction tank (1), a cooling liquid is circulated in the jacket (11), the jacket (11) is connected to a drain pipe (111) and a water inlet pipe (112), a first feed pipe (12) and a second feed pipe (13) are connected to the reaction tank (1), and a discharge pipe (14) is provided at the rear end of the reaction tank (1); A stirrer is coaxially arranged inside the reaction tank (1), the stirrer comprising a central tube (2), the outer portion of which is provided with a plurality of groups of heat conducting tubes (21) in a circumferential array, the front ends of the heat conducting tubes (21) are all in communication with the central tube (2), and the rear ends of the heat conducting tubes (21) and the rear ends of the central tube (2) are respectively an outlet and an inlet for a cooling liquid; The driving device (3) is arranged outside the reaction tank (1) and is used to drive the agitator to rotate around an axis.
2. A chemical reaction stirring device according to claim 1, characterized in that: The first feed pipe (12) and the second feed pipe (13) are both arranged at the front end of the reaction tank (1).
3. A chemical reaction stirring device according to claim 2, characterized in that: The feeding directions of the first feeding pipe (12) and the second feeding pipe (13) are tangent to the inner wall of the reaction tank (1), and the feeding directions are consistent with the rotation direction of the agitator.
4. A chemical reaction stirring device according to claim 1, characterized in that: A drainage pipe (113) with a spiral structure is provided inside the jacket (11), the drainage pipe (111) is located on the top surface of the reaction tank (1), and the water inlet pipe (112) is located on the bottom surface of the reaction tank (1).
5. A chemical reaction stirring device according to claim 1, characterized in that: Each group of heat conduction tubes (21) is provided with a plurality of tubes at intervals and are parallel to the central tube (2).
6. A chemical reaction stirring device according to claim 1 or 5, characterized in that: The outer wall of the central tube (2) is provided with a paddle (22) corresponding to each group of heat conducting tubes (21), and the paddle (22) is inclined relative to the axis of the central tube (2), and the paddle (22) is inclined toward the side wall at the rear end of the reaction tank (1) and toward the rotation direction of the agitator.
7. A chemical reaction stirring device according to claim 6, characterized in that: A push plate (23) is provided on the outside of the stirrer at a position corresponding to the discharge pipe (14) for pushing the reaction material to flow in the direction of rotation of the stirrer.
8. A chemical reaction stirring device according to claim 1, characterized in that: The central tube (2) is provided with a confluence chamber (24) at the front end and the rear end of each group of heat conducting tubes (21) and is connected to the heat conducting tubes (21); the confluence chamber (24) at the front end of the heat conducting tube (21) is connected to the front end of the central tube (2); the confluence chamber (24) at the rear end of the heat conducting tube (21) is arranged on the outer wall of the central tube (2); a circular tube (25) is sleeved on the rear end of the central tube (2); an annular cavity (251) is provided between the inner wall of the circular tube (25) and the central tube (2); The annular cavity (251) is connected to the confluence chamber (24) at the rear end of the heat conducting tube (21); the ends of the circular tube (25) and the central tube (2) are rotatably arranged on the adapter (4); a rotating sealing structure is arranged between the circular tube (25), the central tube (2) and the adapter (4); the end of the adapter (4) is provided with a first conduit (41) connected to the rear end of the central tube (2); and the side wall of the adapter (4) is provided with a second conduit (42) connected to the annular cavity (251).
9. A chemical reaction stirring device according to claim 8, characterized in that: The driving device (3) comprises a driving motor and a transmission system. The transmission system is a belt drive, wherein a driving wheel is arranged on the driving motor, and a driven wheel is sleeved on the outside of the circular tube (25).