Hydrofluoroether synthesis mixing reaction apparatus

Abstract

This utility model relates to the field of chemical synthesis equipment technology, specifically a hydrofluoroether synthesis mixing reaction device, including a reaction tank, a rotary stirring mechanism, a temperature control mechanism, and a feeding and discharging mechanism. The rotary stirring mechanism is fixedly connected to the inside of the reaction tank, and the temperature control mechanism is fixedly connected to the outer surface of the reaction tank. In this utility model, through the setting of a cleaning scraper, a spiral stirring plate, and a rotation stabilizing component, the cleaning scraper can clean the inner wall of the reaction tank during stirring, preventing materials from adhering to the tank wall and affecting the reaction and subsequent cleaning. The spiral stirring plate can form axial and radial mixing flows in the materials, making the reactants more thoroughly mixed. The rotation stabilizing component can adjust the angle of the reaction tank, further promoting material mixing and improving reaction efficiency and yield. By adjusting the tank angle, the distribution and flow state of the materials in the tank can be changed, thereby improving the completeness of the reaction and increasing the yield of hydrofluoroether.

Description

Technical Field

[0001] This utility model relates to the field of chemical synthesis equipment technology, and in particular to a mixed reaction apparatus for the synthesis of hydrofluoroethers. Background Technology

[0002] Hydrofluoroethers (HFEs), a class of ether compounds composed of carbon, hydrogen, oxygen, and fluorine atoms, are characterized by high volatility, low thermal conductivity, low surface tension, low flammability, and good thermal and chemical stability. They have zero ozone depletion potential (ODP), low global warming potential (GWP), and short atmospheric residence time, making them widely used in numerous fields such as medical, electronics, metals, precision instruments, optical lenses, communications, and aerospace. Examples of their applications include refrigerants, cleaning agents, foaming agents, and solvents. When existing technical solutions are used, (1) Some traditional devices use a relatively simple stirring method, which cannot flexibly adjust the stirring effect according to the reaction process, making it difficult to meet the material mixing requirements of complex reactions. The stirring method in the reactor cannot achieve full mixing of reactants, resulting in low reaction efficiency and affecting the yield of hydrofluoroether. (2) During the reaction process, the temperature control is not precise enough, and the temperature fluctuation will affect the selectivity of the reaction and the quality of the product. In addition, the feeding and discharging process of the existing device is not efficient and convenient enough, and the material may block the pipeline during feeding.

[0003] To address the above problems, this invention provides a mixed reaction apparatus for the synthesis of hydrofluoroethers. Utility Model Content

[0004] The purpose of this invention is to solve the problems of insufficient mixing of reactants, inaccurate control of reaction temperature, and inconvenience of feeding and discharging materials in the existing technology, and to propose a hydrofluoroether synthesis mixing reaction device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hydrofluoroether synthesis mixing reaction device, comprising a reaction tank, a rotary stirring mechanism, a temperature control mechanism, and a feeding and discharging mechanism. The rotary stirring mechanism is fixedly connected to the inside of the reaction tank, the temperature control mechanism is fixedly connected to the outer surface of the reaction tank, and the feeding and discharging mechanism is fixedly connected to both ends of the reaction tank. The rotary stirring mechanism includes a first motor fixedly connected to the top of the reaction tank, a connecting shaft fixedly connected to the output end of the first motor, a connecting rod fixedly connected to the outer surface of the connecting shaft, a cleaning scraper fixedly connected to the distal end of the connecting rod, a cross stirring shaft fixedly connected to the outer surfaces of both ends of the connecting shaft, and a spiral stirring plate fixedly connected to the outer surface of the middle part of the connecting shaft. The rotary stirring mechanism includes a rotational stabilizing component rotatably connected to both ends of the reaction tank.

[0006] Furthermore, the rotational stabilization assembly includes a connecting plate fixedly connected to one end of the reaction vessel body. A rotating shaft is provided on the outer surface of the connecting plate. The rotating shaft is rotatably connected to one side of the support frame. A second motor is fixedly connected to the other side of the bottom support frame. A mounting plate is fixedly connected to the output end of the second motor. Bolts are threaded to both sides of the mounting plate. The mounting plate is threaded to the other end of the reaction vessel body through bolts. The reaction vessel body is rotatably connected to the top of the bottom support frame through the second motor.

[0007] Furthermore, a bearing is rotatably connected to the bottom of the connecting shaft, the outer surface of the bearing is fixedly connected to the bottom of the reaction vessel, and the bearing is fitted into the inner bottom wall of the reaction vessel.

[0008] Furthermore, the temperature control mechanism includes a connecting and fixing ring fixedly connected to the outer surface of the reaction vessel, and a circumferential flow tube is sleeved inside the connecting and fixing ring, the circumferential flow tube being sleeved to the outer surface of the reaction vessel through the connecting and fixing ring.

[0009] Furthermore, one end of the spiral flow tube is fixedly connected to an inlet, and the other end of the spiral flow tube is fixedly connected to an outlet. The inlet and outlet are internally threaded with plugs.

[0010] Furthermore, the feeding and discharging mechanism includes a feeding pipe fixedly connected to the outer surface of the top of the reaction tank, a positioning block fixedly connected inside the feeding pipe, a filter frame snapped onto the top of the positioning block, and a filter screen fixedly connected inside the filter frame.

[0011] Furthermore, the feeding and discharging mechanism includes a discharge pipe fixedly connected to the outer surface of the bottom of the reaction vessel. The feed pipe and the discharge pipe are internally threaded with sealing ports. The feed pipe and the discharge pipe are symmetrically arranged at both ends of the reaction vessel.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, by setting up a cleaning scraper, a spiral stirring plate, and a rotation stabilizing component, the cleaning scraper can clean the inner wall of the reaction tank during the stirring process, preventing materials from adhering to the tank wall and affecting the reaction and subsequent cleaning. The spiral stirring plate can form axial and radial mixing flow in the materials, making the reactants more fully mixed and greatly improving the mixing efficiency of the materials. The rotation stabilizing component can adjust the angle of the reaction tank, further promoting the mixing of materials and improving the reaction efficiency and yield. By adjusting the angle of the tank, the distribution and flow state of the materials in the tank can be changed, so that materials at different positions can fully contact the reaction, thereby improving the completeness of the reaction and increasing the yield of hydrofluoroether.

[0013] 2. In this utility model, through the arrangement of the surrounding flow pipe, filter screen, and connecting fixing ring, the surrounding flow pipe can precisely control the reaction temperature and provide a suitable environment for the reaction. Its surrounding design can evenly heat or cool the reaction vessel, making the reaction temperature more stable, reducing the impact of temperature fluctuations on the reaction, and improving product quality. The filter screen can effectively filter impurities in the reactants, ensuring the purity of the reaction and improving product quality. After filtering out impurities, the connecting fixing ring ensures the stable installation of the surrounding flow pipe, ensures the normal operation of the temperature control system, and enables the entire reaction device to operate stably for a long time, reducing production interruptions caused by equipment failure. Attached Figure Description

[0014] Figure 1 This invention provides a three-dimensional structural schematic diagram of a mixed reaction apparatus for the synthesis of hydrofluoroethers; Figure 2 This invention provides a schematic diagram of the rotational stabilization component in a hydrofluoroether synthesis mixing reaction apparatus. Figure 3 This invention proposes a mixed reaction apparatus for the synthesis of hydrofluoroethers. Figure 2 Enlarged view of point A; Figure 4 This invention provides a schematic diagram of the structure of a spiral stirring plate in a hydrofluoroether synthesis mixing reaction apparatus; Figure 5 This invention provides a schematic diagram of the cross-shaped stirring shaft in a mixed reaction apparatus for the synthesis of hydrofluoroethers; Figure 6 This invention proposes a mixed reaction apparatus for the synthesis of hydrofluoroethers. Figure 5 Enlarged view of point B; Figure 7 This invention proposes a mixed reaction apparatus for the synthesis of hydrofluoroethers. Figure 5 Enlarged diagram of point C.

[0015] Legend: 1. Reaction tank; 2. Rotary stirring mechanism; 21. First motor; 22. Connecting shaft; 23. Connecting rod; 24. Cleaning scraper; 25. Cross stirring shaft; 26. Spiral stirring plate; 27. Rotational stabilization assembly; 271. Connecting plate; 272. Bottom support frame; 273. Second motor; 274. Mounting plate; 275. Bolt; 28. Bearing; 3. Temperature control mechanism; 31. Connecting fixing ring; 32. Circular flow pipe; 33. Liquid inlet; 34. Liquid outlet; 35. Plug cap; 4. Feeding and discharging mechanism; 41. Feed pipe; 42. Positioning block; 43. Filter frame; 44. Filter screen; 45. Discharge pipe; 46. Sealing port. Detailed Implementation

[0016] Please see Figure 1-7 This utility model provides a technical solution: a hydrofluoroether synthesis mixing reaction device, including a reaction tank 1, a rotary stirring mechanism 2, a temperature control mechanism 3, and a feeding and discharging mechanism 4. The rotary stirring mechanism 2 is fixedly connected to the inside of the reaction tank 1, the temperature control mechanism 3 is fixedly connected to the outer surface of the reaction tank 1, and the feeding and discharging mechanism 4 is fixedly connected to both ends of the reaction tank 1.

[0017] The following section will explain the specific configuration and function of its rotary stirring mechanism 2, temperature control mechanism 3, and feeding / discharging mechanism 4.

[0018] In this embodiment: the rotary stirring mechanism 2 includes a first motor 21 fixedly connected to the top of the reaction tank 1, a connecting shaft 22 fixedly connected to the output end of the first motor 21, a connecting rod 23 fixedly connected to the outer surface of the connecting shaft 22, a cleaning scraper 24 fixedly connected to the far end of the connecting rod 23, a cross stirring shaft 25 fixedly connected to the outer surfaces of both ends of the connecting shaft 22, a spiral stirring plate 26 fixedly connected to the outer surface of the middle part of the connecting shaft 22, and a rotation stabilizing component 27 rotatably connected to both ends of the reaction tank 1.

[0019] The effects achieved by the above components are as follows: the first motor 21, as the power source of the rotary stirring mechanism 2, can precisely control the speed and provide an appropriate stirring speed according to different stages of the hydrofluoroether synthesis reaction; the connecting shaft 22 transmits the power of the first motor 21 to each stirring component to ensure the synchronization of the stirring action; and the cleaning scraper 24 moves closely against the inner wall of the reaction tank 1 when the connecting shaft 22 rotates, so as to remove the material adhering to the tank wall in a timely manner.

[0020] The cross-shaped stirring shaft 25 is distributed at both ends of the connecting shaft 22. When rotating, it can generate radial stirring force, which can fully mix the materials in the horizontal direction and increase the contact probability between the materials. The spiral stirring plate 26 is located in the middle of the connecting shaft 22. It can push the materials to move along the axial direction of the connecting shaft 22 and cause the materials to tumble in the radial direction, thereby forming a complex and efficient three-dimensional mixing flow field in the reaction tank 1, which greatly improves the mixing effect of the materials and significantly improves the reaction efficiency.

[0021] Specifically, the rotational stabilization assembly 27 includes a connecting plate 271 fixedly connected to one end of the reaction vessel 1. A rotating shaft is provided on the outer surface of the connecting plate 271. The rotating shaft is rotatably connected to one side of the support frame 272. A bearing is provided on one side of the support frame 272, and the rotating shaft is fitted inside the bearing. A second motor 273 is fixedly connected to the other side of the bottom support frame 272. A mounting plate 274 is fixedly connected to the output end of the second motor 273. Bolts 275 are threaded to both sides of the mounting plate 274. The mounting plate 274 is threaded to the other end of the reaction vessel 1 through the bolts 275. The reaction vessel 1 is rotatably connected to the top of the bottom support frame 272 through the second motor 273.

[0022] The effects achieved by the above components are as follows: the second motor 273, as a key component, can precisely control the rotation angle of the reaction tank 1. At different stages of the hydrofluoroether synthesis reaction, the tilt angle of the reaction tank 1 can be adjusted according to the characteristics of the materials and the reaction requirements. In conjunction with the stirring components, it can mix with other materials more quickly, greatly improving the mixing effect of the materials.

[0023] Specifically, a bearing 28 is rotatably connected to the bottom of the connecting shaft 22. The outer surface of the bearing 28 is fixedly connected to the bottom of the reaction vessel 1, and the bearing 28 is fitted into the inner bottom wall of the reaction vessel 1.

[0024] The effects achieved by the above components are as follows: the bearing 28 greatly reduces the friction when the connecting shaft 22 rotates, allowing the connecting shaft 22 to rotate smoothly, reducing energy consumption, ensuring the long-term stable operation of the stirring system, reducing the probability of equipment failure, and ensuring the reliable operation of the entire hydrofluoroether synthesis mixing reaction device.

[0025] Specifically, the temperature control mechanism 3 includes a connecting and fixing ring 31 fixedly connected to the outer surface of the reaction vessel 1. A circumferential flow tube 32 is sleeved inside the connecting and fixing ring 31, and the circumferential flow tube 32 is sleeved to the outer surface of the reaction vessel 1 through the connecting and fixing ring 31.

[0026] The effect achieved by the above components is that the connecting and fixing ring 31 is tightly fixed on the outer surface of the reaction vessel 1, providing a stable installation base for the surrounding flow pipe 32, which can be circulated with heating or cooling media to achieve precise control of the reaction temperature inside the reaction vessel 1. In the hydrofluoroether synthesis reaction, temperature has a significant impact on the selectivity of the reaction and the quality of the product.

[0027] Specifically, one end of the circumferential flow tube 32 is fixedly connected to an inlet 33, and the other end of the circumferential flow tube 32 is fixedly connected to an outlet 34. The inlet 33 and the outlet 34 are internally threaded with plugs 35.

[0028] The above components achieve the following effects: the inlet 33 is used to input heating or cooling medium, the outlet 34 is used to discharge the medium after use, and the plug 35 is tightly threaded inside the inlet 33 and outlet 34 when not in use, effectively preventing impurities from entering the pipeline.

[0029] Specifically, the feeding and discharging mechanism 4 includes a feed pipe 41 fixedly connected to the outer surface of the top of the reaction tank 1. A positioning block 42 is fixedly connected inside the feed pipe 41. A filter frame 43 is snapped onto the top of the positioning block 42. A filter screen 44 is fixedly connected inside the filter frame 43.

[0030] The effects achieved by the above components are as follows: the positioning block 42 is fixed inside the feed pipe 41, providing a stable installation position for the filter frame 43, ensuring that the filter frame 43 will not be displaced during the feeding process, and the filter screen 44 inside the filter frame 43 can effectively filter out impurities in the reactants. If these impurities enter the reaction system, they may react with the reactants and affect the normal progress of the reaction.

[0031] Specifically, the feeding and discharging mechanism 4 includes a discharge pipe 45 fixedly connected to the outer surface of the bottom of the reaction tank 1. The feed pipe 41 and the discharge pipe 45 are internally threaded with sealing ports 46. The feed pipe 41 and the discharge pipe 45 are symmetrically arranged at both ends of the reaction tank 1.

[0032] The effects achieved by the above components are as follows: the discharge pipe 45 is located at the bottom of the reaction tank 1, and the reaction products are easily discharged by gravity. The sealing port 46 tightly seals the feed pipe 41 and the discharge pipe 45 through threaded connection during the feeding or reaction process to prevent material leakage.

[0033] Working principle: Before the hydrofluoroether synthesis reaction, the plug 46 is removed from the feed pipe 41, and the reactants are fed into the reaction tank 1 through the feed pipe 41. During the feeding process, the reactants pass through the filter screen 44 in the filter frame 43, and impurities are intercepted and filtered. The pure reactants enter the reaction tank 1. After the feeding is completed, the plug 46 is tightened back onto the feed pipe 41.

[0034] The first motor 21 is started, which drives the connecting shaft 22 to rotate. The cross stirring shaft 25, the spiral stirring plate 26, and the cleaning scraper 24 on the connecting shaft 22 move synchronously. The cross stirring shaft 25 generates radial stirring force at both ends of the connecting shaft 22, which mixes the materials in the horizontal direction. The spiral stirring plate 26 pushes the materials to move axially and radially, forming a three-dimensional mixing flow field. The cleaning scraper 24 cleans the inner wall of the reaction tank 1 to ensure that the materials participate in the reaction evenly.

[0035] Meanwhile, the angle of the reaction tank 1 can be adjusted by the second motor 273 according to the reaction requirements to promote better mixing of materials. If it is necessary to control the reaction temperature during the reaction process, heating or cooling medium can be introduced into the surrounding flow pipe 32 through the liquid inlet 33 according to the reaction temperature requirements. The medium flows around the reaction tank 1 in the surrounding flow pipe 32 to achieve precise control of the reaction temperature and ensure that the reaction is carried out at a suitable temperature. When the reaction is completed, the sealing port 46 on the discharge pipe 45 is unscrewed, and the reaction product is smoothly discharged from the discharge pipe 45 under the action of gravity, completing the entire synthesis and mixing reaction process of hydrofluoroether.

Claims

1. A hydrofluoroether synthesis mixing reaction apparatus, comprising a reaction tank (1), a rotary stirring mechanism (2), a temperature control mechanism (3), and a feeding / discharging mechanism (4), characterized in that: The rotary stirring mechanism (2) is fixedly connected to the inside of the reaction tank (1), the temperature control mechanism (3) is fixedly connected to the outer surface of the reaction tank (1), the feeding and discharging mechanism (4) is fixedly connected to both ends of the reaction tank (1), the rotary stirring mechanism (2) includes a first motor (21) fixedly connected to the top of the reaction tank (1), the output end of the first motor (21) is fixedly connected to a connecting shaft (22), the outer surface of the connecting shaft (22) is fixedly connected to a connecting rod (23), the far end of the connecting rod (23) is fixedly connected to a cleaning scraper (24), the outer surfaces of both ends of the connecting shaft (22) are fixedly connected to a cross stirring shaft (25), the outer surface of the middle part of the connecting shaft (22) is fixedly connected to a spiral stirring plate (26), and the rotary stirring mechanism (2) includes a rotary stabilizing component (27) rotatably connected to both ends of the reaction tank (1).

2. The hydrofluoroether synthesis mixing reaction apparatus according to claim 1, characterized in that: The rotational stabilization assembly (27) includes a connecting plate (271) fixedly connected to one end of the reaction vessel (1). A rotating shaft is provided on the connecting plate (271), and the rotating shaft is rotatably connected to one side of the bottom support frame (272). A second motor (273) is fixedly connected to the other side of the bottom support frame (272). An installation plate (274) is fixedly connected to the output end of the second motor (273). The two sides of the installation plate (274) are threaded to bolts (275). The installation plate (274) is threaded to the other end of the reaction vessel (1) through bolts (275). The reaction vessel (1) is rotatably connected to the top of the bottom support frame (272) through the second motor (273).

3. The hydrofluoroether synthesis mixing reaction apparatus according to claim 1, characterized in that: The bottom of the connecting shaft (22) is rotatably connected to a bearing (28), the outer surface of the bearing (28) is fixedly connected to the bottom of the reaction vessel (1), and the bearing (28) is fitted into the inner bottom wall of the reaction vessel (1).

4. The hydrofluoroether synthesis mixing reaction apparatus according to claim 1, characterized in that: The temperature control mechanism (3) includes a connecting ring (31) fixedly connected to the outer surface of the reaction vessel (1). A circumferential flow tube (32) is sleeved inside the connecting ring (31). The circumferential flow tube (32) is sleeved to the outer surface of the reaction vessel (1) through the connecting ring (31).

5. The hydrofluoroether synthesis mixing reaction apparatus according to claim 4, characterized in that: One end of the circumferential flow tube (32) is fixedly connected to an inlet (33), and the other end of the circumferential flow tube (32) is fixedly connected to an outlet (34). The inlet (33) and outlet (34) are internally threaded with plugs (35).

6. The hydrofluoroether synthesis mixing reaction apparatus according to claim 1, characterized in that: The feeding and discharging mechanism (4) includes a feeding pipe (41) fixedly connected to the top outer surface of the reaction tank (1). A positioning block (42) is fixedly connected inside the feeding pipe (41). A filter frame (43) is snapped onto the top of the positioning block (42). A filter screen (44) is fixedly connected inside the filter frame (43).

7. The hydrofluoroether synthesis mixing reaction apparatus according to claim 6, characterized in that: The feeding and discharging mechanism (4) includes a discharge pipe (45) fixedly connected to the outer surface of the bottom of the reaction tank (1). The feed pipe (41) and the discharge pipe (45) are internally threaded with a sealing port (46). The feed pipe (41) and the discharge pipe (45) are symmetrically arranged at both ends of the reaction tank (1).

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