Efficient mixing reaction system
By using a steady flow baffle and a heat exchanger unit in the chemical synthesis reaction system, the problems of temperature control hysteresis and raw material addition speed are solved, stable and efficient mixing of reaction temperature is achieved, and the efficiency of chemical synthesis is improved.
Patent Information
- Application Number
- CN202421943652.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-08-12
AI Technical Summary
In chemical synthesis reaction, the temperature control lag and the speed of raw material addition affects the reaction stability, resulting in poor reaction effect.
The steady flow baffle and heat exchange unit in the mixing synthesis tank are used to preheat the raw materials and control their temperature, and combine the trumpet design to slow down the impact force of the raw materials, real-time stable and uniform mixing of the reaction temperature is achieved.
Real-time stable control of reaction temperature is achieved, raw material accumulation and violent reactions are avoided, and the efficiency and stability of the synthesis reaction are improved.
Smart Images
Figure CN223221472U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of chemical synthesis equipment, and in particular relates to a high-efficiency mixing reaction system. Background Art
[0002] The statements in this section are merely intended to provide background information related to the technical solution of the present application to aid understanding, and they do not necessarily constitute prior art with respect to the technical solution of the present application.
[0003] Chemical synthesis reactions are generally exothermic processes. While heating, the reaction also releases some heat. Therefore, the temperature in the reaction system will fluctuate and rise. In order to maintain a fixed reaction temperature, the excess heat must be transferred out in a timely manner. Usually, a jacketed reactor is used, and cold water is pumped into the jacket. The reactor temperature is controlled by the cold water temperature and flow rate. However, this method has a hysteresis in temperature control and cannot achieve real-time and precise control. The system temperature is prone to fluctuations, affecting the synthesis reaction effect. In addition, when the raw materials are added too quickly and the synthesis reaction speed is slow, the raw materials tend to accumulate, react rapidly in the later stage, and the reaction will be out of control. Utility Model Content
[0004] In order to achieve stable and controllable reaction temperature and eliminate the influence of raw material addition rate on the reaction, the technical solution of the utility model is proposed:
[0005] A high-efficiency mixed reaction system includes a mixed synthesis tank, multiple liquid inlet pipes, liquid outlet pipes, and multiple heat exchange units. A flow stabilizing baffle is provided inside the mixed synthesis tank; the liquid outlet pipe is connected to the mixed synthesis tank, and each liquid inlet pipe is connected to the mixed synthesis tank after passing through a heat exchange unit. The end of the liquid inlet pipe that extends into the mixed synthesis tank is provided with a bell mouth opening downward, and the flow stabilizing baffle is located below the bell mouth. The flow stabilizing baffle is provided with sieve holes and is divided into upper and lower layers. The upper layer of the flow stabilizing baffle is a square sieve hole with a side length ranging from 100 to 200 mm, and the lower layer of the flow stabilizing baffle is a circular sieve hole with a diameter of 30 to 50 mm.
[0006] Furthermore, the mesh sizes of each layer of the flow stabilizing baffle are different.
[0007] Furthermore, the liquid inlet pipe is located below the liquid outlet pipe.
[0008] Furthermore, the portion of the liquid inlet pipe that extends into the mixing and synthesis tank is bent downward in an inverted L shape, and the outlet is bent downward at 90 degrees.
[0009] Compared with the prior art, the beneficial technical effect of the present invention is as follows: the temperature of each liquid raw material is heat-exchanged to a set temperature in advance by a heat exchange unit, and then the heated raw materials are mixed. During the mixing process, the reaction heat is used to maintain the required reaction temperature. The external heat source and the exothermic heat of the reaction are used to maintain the reaction temperature in succession and do not exist at the same time. Therefore, in the present invention system, the temperature control of the reaction process is real-time and stable without hysteresis. The reaction system of the present invention is simple to operate and the control process is stable. In addition, since the external heat source and the exothermic heat of the reaction play their roles respectively, even if the raw materials are added too quickly, it will not cause the raw materials to accumulate and not react in the early stage and react violently in the later stage. Therefore, the raw material addition rate is not limited and the synthesis reaction efficiency is high. In addition, the setting of the bell mouth and the flow-stabilizing baffle can slow down the impact force of the raw material liquid when it flows in, disperse and mix the inflowing raw materials, and promote the stability and sufficiency of the reaction. The special sieve hole arrangement setting of the flow-stabilizing baffle is conducive to achieving efficient mixing and avoiding the accumulation of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of a high-efficiency mixed reaction system of the utility model.
[0011] Figure 2 It is a top view of the upper layer of the flow stabilizing baffle of the utility model.
[0012] Figure 3 It is a top view of the lower layer of the flow stabilizing baffle of the present utility model.
[0013] Among them, 1-mixing synthesis tank, 2-heat exchange unit, 3-liquid inlet pipe, 4-bell mouth, 5-flow stabilizing baffle, 6-liquid outlet pipe. DETAILED DESCRIPTION
[0014] In order to make the purpose, technical solution and advantages of the present invention more clear, the following is a detailed description of the mixed reaction system of the present application in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0015] Example 1
[0016] A high-efficiency mixing reaction system includes a mixing tank 1, three liquid inlet pipes 3, a liquid outlet pipe 6, and three heat exchange units 2. A flow stabilizing baffle 5 is installed within the mixing tank 1. The flow stabilizing baffle 5 is divided into two layers. The upper layer is provided with large square mesh holes of varying sizes, ranging from 100 to 200 mm, to eliminate strong impact on incoming liquid. The lower layer is provided with circular mesh holes of varying sizes, ranging from 30 to 50 mm in diameter, to ensure uniform dispersion and mixing of the materials. The liquid outlet pipes 6 are connected to the mixing tank 1. Each liquid inlet pipe 3 is connected to the mixing tank 1 after passing through a heat exchange unit 2. The liquid outlet pipes 6 are located above the liquid inlet pipes 3 to prevent liquid materials from splashing into the outlet pipes 6 when entering the mixing tank 1. The end of the liquid inlet pipe 3 that extends into the mixing synthesis tank 1 is provided with a bell mouth 4 opening downward. The setting of the bell mouth can disperse the various liquid raw materials entering downward and reduce the impact force. The flow stabilizing baffle 5 is located below the bell mouth 4. The double-layer flow stabilizing baffle 5 can increase the mixing effect of the liquid materials and reduce the impact force of the liquid materials.
[0017] Example 2
[0018] The structure is basically the same as that of Example 1, with the only difference being that the flow stabilizing baffle 5 is divided into two layers. The upper layer is provided with large square sieve holes of equal size of 150 mm to eliminate the strong impact of the incoming liquid, and the lower layer is provided with circular sieve holes of equal size of 40 mm in diameter to disperse and mix the materials evenly.
[0019] When the utility model mixing reaction system is in use, various materials are first heated to a set temperature through the heat exchange unit 2, and then various materials are simultaneously pumped into the mixed synthesis tank 1 according to a certain ratio. After the reaction is completed, the product overflows from the liquid outlet pipe 6, completing the synthesis reaction process.
Claims
1. A high-efficiency mixing reaction system, comprising a mixing synthesis tank (1), a plurality of liquid inlet pipes (3) and a liquid outlet pipe (6), characterized in that: The invention also comprises a plurality of heat exchange units (2), wherein the liquid outlet pipe (6) is connected to the mixed synthesis tank (1), and each liquid inlet pipe (3) is connected to the mixed synthesis tank (1) after passing through a heat exchange unit (2). The end of the liquid inlet pipe (3) that protrudes into the mixed synthesis tank (1) is provided with a bell mouth (4) opening downwards, and a flow stabilizing baffle (5) is provided inside the mixed synthesis tank (1). The flow stabilizing baffle (5) is located below the bell mouth (4), and a sieve hole is provided on the flow stabilizing baffle (5). The flow stabilizing baffle (5) is divided into two layers, the upper layer of the flow stabilizing baffle (5) is a square sieve hole with a side length ranging from 100 to 200 mm, and the lower layer of the flow stabilizing baffle (5) is a circular sieve hole with a diameter of 30 to 50 mm.
2. A high-efficiency mixed reaction system according to claim 1, characterized in that: The mesh sizes of each layer of the flow stabilizing baffle (5) are different.
3. A high-efficiency mixed reaction system according to claim 1, characterized in that: The liquid inlet pipe (3) is located below the liquid outlet pipe (6).
4. The high-efficiency mixed reaction system according to claim 1, characterized in that: The portion of the liquid inlet pipe (3) that protrudes into the mixing synthesis tank (1) is bent downward in an inverted L shape.