Leak-proof coupling reaction kettle
Patent Information
- Application Number
- CN202522569058.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-03
AI Technical Summary
[0004]针对上述中的相关技术，硬质合金密封环在设备工作过程中，动态调节能力较弱，较难实时适应压力波动，从而使得密封面出现间隙，并且较难填补形变产生的间隙，导致设备泄漏催化剂，不利于提高设备运行的稳定性和安全性
1.釜盖对釜体进行遮盖，使得釜体内形成密闭反应空间，电机带动搅拌杆沿自身轴线方向转动，搅拌杆带动导流板沿釜盖轴线方向转动，导流板对釜体内的溶液进行搅拌混合，折流板通过强制改变流体的流动方向，打破流体在釜壁处形成的静止的边界层，提升装置传热效率，釜盖通过轴套对移动环进行支撑，轴套对移动环一和移动环二进行限位和导向，釜盖对主密封圈和辅助密封圈均进行限位和导向，釜体内压力发生变化时，主密封圈通过连接块一带动移动环一移动，移动环一挤压空气带动移动环二移动，移动环二通过连接块二带动辅助密封圈移动，从而根据釜内压力实现动态调节，在保证密封性的同时保持釜体内压力稳定，有利于提高装置的工作稳定性和安全性；
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Figure CN224912393U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical equipment technology, and in particular to a leak-proof coupling reactor. Background Technology
[0002] Currently, in the chemical industry, such as in the production of ethylhexyltriazine ketone, coupling reactors are one of the core pieces of equipment. They are used to mix raw materials and react them under certain conditions to produce ethylhexyltriazine ketone. Traditional equipment usually has a sealed structure to keep the inside of the reactor in a sealed environment to ensure the production efficiency and safety of the equipment.
[0003] The sealing structure is usually installed inside the flange. The sealing structure usually uses a hard alloy sealing ring for sealing. The hard alloy sealing ring has high hardness and can maintain its original shape and structural integrity under the high temperature and high pressure reaction environment of the reactor. At the same time, it can resist the scratching of solid particles and acid and alkali corrosion, and is not easily deformed or worn. It prevents external impurities from entering the reactor and affecting the chemical reaction inside the reactor, thus ensuring the safe operation of the equipment.
[0004] Regarding the aforementioned technologies, hard alloy sealing rings have weak dynamic adjustment capabilities during equipment operation, making it difficult to adapt to pressure fluctuations in real time. This results in gaps appearing on the sealing surface, and it is difficult to fill the gaps caused by deformation, leading to catalyst leakage and hindering the improvement of equipment stability and safety. Utility Model Content
[0005] To improve the stability of equipment operation, this application provides a leak-proof coupling reactor.
[0006] This application provides a leak-proof coupling reactor, which adopts the following technical solution: A leak-proof coupling reactor includes a reactor body and a reactor lid. The reactor lid is connected to the upper end of the reactor body, and a motor is installed at the upper end of the reactor lid. A stirring rod is coaxially fixedly connected to the output shaft of the motor. The stirring rod passes through the reactor lid and is rotatably connected to the reactor lid coaxially. A guide plate for stirring the solution is provided on the stirring rod. Baffles are provided circumferentially on the inner wall of the reactor body. A bushing, a main sealing ring, and an auxiliary sealing ring are provided inside the reactor lid. The bushing, the main sealing ring, and the auxiliary sealing ring are all sleeved on the outside of the stirring rod. The outer wall of the bushing is connected to the inner wall of the reactor lid. The main sealing ring and the auxiliary sealing ring are rotatably connected to the stirring rod and slidably connected to the inner wall of the reactor lid longitudinally. The inner sleeve has two sliding rings, one and two, which are vertically connected. Both rings are fitted on the outside of the stirring rod, with ring one below ring two. A vacuum space is formed between ring one, ring two, and the inner wall of the sleeve. An auxiliary sealing ring is located at the upper end of the sleeve, and a main sealing ring is located at the lower end of the sleeve. A connecting block one connects the main sealing ring to ring one, and a connecting block two connects the auxiliary sealing ring to ring two. The auxiliary sealing ring is made of elastic composite material, and the main sealing ring is made of hard alloy. The upper end of the lid is also equipped with a sealing element for sealing the gap between the stirring shaft and the lid.
[0007] By adopting the above technical solution, the vessel lid covers the vessel body, creating a sealed reaction space inside the vessel. The motor drives the stirring rod to rotate along its own axis, which in turn drives the guide plate to rotate along the axis of the vessel lid. The guide plate stirs and mixes the solution inside the vessel. The baffle plate breaks the static boundary layer formed by the fluid at the vessel wall by forcibly changing the flow direction of the fluid, thereby improving the heat transfer efficiency of the device. The vessel lid supports the moving rings through the bushing, which limits and guides the first and second moving rings. The vessel lid also limits and guides both the main sealing ring and the auxiliary sealing ring. When the pressure inside the vessel changes, the main sealing ring moves the first moving ring through the connecting block, the first moving ring compresses the air and moves the second moving ring, and the second moving ring moves the auxiliary sealing ring through the connecting block. This allows for dynamic adjustment according to the pressure inside the vessel, ensuring sealing while maintaining stable pressure inside the vessel, which is beneficial for improving the working stability and safety of the device.
[0008] Optionally, the cross-sectional area of the auxiliary sealing ring gradually decreases from the middle to both sides.
[0009] By adopting the above technical solution, the upper or lower end face of the auxiliary sealing ring deforms during vertical movement. Under the limiting effect of the inner wall of the kettle lid, the side of the auxiliary sealing ring that is close to the stirring rod moves closer to the stirring rod during upward movement, thereby improving the sealing performance between the auxiliary sealing ring and the stirring rod.
[0010] Optionally, the bushing stores a separating fluid between the two moving rings.
[0011] By adopting the above technical solution, the isolation fluid buffers the moving ring one and the moving ring two, thereby improving the stability of the moving ring one and the moving ring two during movement.
[0012] Optionally, the sealing element includes a sealing ring and a shape memory alloy. The sealing ring is located at the upper end of the vessel lid and is sleeved on the outside of the stirring rod. The shape memory alloy is located between the sealing ring and the stirring rod. A cooling pipe for cooling the shape memory alloy is connected inside the sealing ring. A switch is provided on the cooling pipe. Several temperature sensors are provided on the outer wall of the vessel, and the several temperature sensors form a thermocouple array.
[0013] By adopting the above technical solution, the vessel lid supports the sealing ring and the shape memory alloy. The vessel lid and the sealing ring work together to support the shape memory alloy. The cooling pipe causes the shape memory alloy to continuously contract. The operator records the temperature through a temperature sensor and uses the thermal conductivity model formula to infer the internal temperature of the vessel. Then, based on the temperature, the operator turns on the cooling pipe by switching it on, allowing the temperature inside the vessel to be conducted to the shape memory alloy. This causes the shape memory alloy to expand due to heat, thereby sealing the gap between the stirring rod and the vessel lid, thus improving the airtightness of the inner wall of the vessel and improving the stability of the vessel's operation.
[0014] Optionally, the inner wall of the sealing ring is provided with a spiral groove along the circumference, and the cooling pipe is located in the spiral groove.
[0015] By adopting the above technical solution, the sealing ring supports and fixes the cooling pipe through the spiral groove, reducing the probability of the cooling pipe interfering with the expansion of the shape memory alloy, which is beneficial to improving the working stability of the shape memory alloy and the cooling pipe.
[0016] Optionally, the sealing element includes an electromagnetic coil and a sealing seat. The sealing seat is sleeved on the outside of the stirring rod. The outside of the stirring rod is provided with a silicon nitride mechanical cover. An electromagnetic coil is provided circumferentially inside the sealing seat. A groove is provided circumferentially on the inner wall of the sealing seat. A magnetorheological fluid is stored in the groove. The viscosity of the magnetorheological fluid changes with the magnitude of the magnetic field strength.
[0017] By adopting the above technical solution, the vessel lid supports the sealing seat, and the sealing seat supports and fixes the electromagnetic coil. The operator changes the current intensity of the electromagnetic coil, thereby changing the magnetic field intensity of the electromagnetic coil, and thus changing the viscosity of the magnetorheological fluid. This allows the magnetorheological fluid to fill the gap between the stirring rod and the vessel lid, thereby improving the sealing performance between the vessel lid and the stirring rod, reducing the probability of solution leakage from the vessel, and thus improving the stability and safety of the vessel's operation.
[0018] Optionally, the guide plate includes a spiral plate and a vertical plate. The spiral plate is wound around the stirring rod along the axial direction of the stirring rod, and the vertical plate is located at the lower end of the stirring rod and is parallel to the stirring rod.
[0019] By adopting the above technical solution, when the stirring rod rotates along its own axis, the spiral plate and the vertical plate rotate along the axis of the vessel body. During the rotation of the spiral plate, the liquid is circulated in the circumferential direction, and during the rotation of the vertical plate, the liquid at the bottom is agitated, reducing the probability of liquid sedimentation and improving the mixing effect of the solution in the vessel body.
[0020] Optionally, the spiral plate is divided into several segments along its own axis, and the angles on the sides of adjacent spiral plates that are close to each other are different, and the spacing between the spiral plates is distributed according to the Reynolds number gradient.
[0021] By adopting the above technical solution, the staggered arrangement of the spiral plates ensures that each section of the spiral surface is in the optimal eddy intensity range. Different sections of the spiral plates stir the solution at different angles, thereby reducing the intensity of the eddy current and thus reducing the energy consumption of the device.
[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The vessel lid covers the vessel body, creating a sealed reaction space inside. The motor drives the stirring rod to rotate along its own axis, which in turn drives the guide plate to rotate along the lid's axis. The guide plate stirs and mixes the solution inside the vessel. The baffle plate breaks the static boundary layer formed at the vessel wall by forcibly changing the flow direction of the fluid, thus improving the heat transfer efficiency of the device. The vessel lid supports the moving rings via a bushing, which limits and guides moving ring one and moving ring two. The vessel lid also limits and guides both the main sealing ring and the auxiliary sealing ring. When the pressure inside the vessel changes, the main sealing ring moves moving ring one via connecting block one. Moving ring one compresses air, moving moving ring two. Moving ring two moves the auxiliary sealing ring via connecting block two, thereby achieving dynamic adjustment according to the pressure inside the vessel. This ensures sealing while maintaining stable pressure inside the vessel, which is beneficial for improving the operational stability and safety of the device. 2. During the vertical movement of the auxiliary sealing ring, the upper or lower end face deforms. Under the limiting action of the inner wall of the kettle lid, as the auxiliary sealing ring moves upward, the side closest to the stirring rod moves closer to the stirring rod, improving the sealing performance between the auxiliary sealing ring and the stirring rod. 3. The isolation fluid buffers the moving ring 1 and moving ring 2, improving their stability during movement. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of a leak-proof coupling reactor.
[0024] Figure 2 This is a schematic diagram designed to highlight the internal structure of the vessel.
[0025] Figure 3 yes Figure 2An enlarged schematic diagram of part A in the middle.
[0026] Figure 4 This is a schematic diagram designed to highlight the sealing seat structure in Embodiment 2.
[0027] Explanation of reference numerals in the attached drawings: 1. Vessel body; 2. Vessel lid; 21. Main sealing ring; 22. Auxiliary sealing ring; 23. Motor; 3. Bushing; 31. Moving ring one; 32. Moving ring two; 33. Connecting block one; 34. Connecting block two; 4. Sealing element; 41. Sealing ring; 42. Shape memory alloy; 43. Cooling pipe; 44. Switch; 45. Temperature sensor; 46. Spiral groove; 47. Sealing seat; 48. Electromagnetic coil; 49. Groove; 5. Stirring rod; 51. Guide plate; 511. Spiral plate; 512. Vertical plate; 6. Baffle plate. Detailed Implementation
[0028] The present application will be further described in detail below with reference to all the accompanying drawings.
[0029] This application discloses a leak-proof coupling reactor.
[0030] Example 1 Reference Figure 1 A leak-proof coupling reactor includes a reactor body 1 and a reactor cover 2. The reactor cover 2 is located above the reactor body 1. Flanges are provided between the reactor body 1 and the reactor cover 2, and several bolts are arranged circumferentially between the two flanges for connection. The reactor body 1 and the reactor cover 2 are connected by the two flanges. The upper end of the reactor cover 2 is cylindrical, and a feed pipe for feeding is connected to the reactor cover 2. A discharge pipe for discharging is connected to the lower end of the reactor body 1.
[0031] Reference Figure 2 and Figure 3 A motor 23 is installed at the upper end of the vessel lid 2, and a stirring rod 5 is coaxially fixedly connected to the lower end of the motor 23. The stirring rod 5 extends into the vessel body 1 through the vessel lid 2. A guide plate 51 is installed on the stirring rod 5. The guide plate 51 includes a spiral plate 511 and a vertical plate 512. The vertical plate 512 is located at the lower end of the stirring rod 5 and is arranged parallel to the stirring rod 5. The stirring rod 5 supports and fixes the spiral plate 511 and the vertical plate 512. The spiral plate 511 is divided into several segments along the circumference. The segments of the spiral plate 511 are spaced apart and distributed according to the gradient calculated by the Reynolds number, so that each spiral surface is in the optimal eddy intensity range. The spiral surface angles of adjacent spiral plates 511 on the side that are close to each other are different, so that the spiral plates 511 stir the solution at different angles, thereby reducing the intensity of the eddy current and thus reducing the energy consumption of the device.
[0032] Reference Figure 2 and Figure 3A bushing 3 is coaxially installed inside the vessel lid 2. The bushing 3 is sleeved on the outside of the stirring rod 5 and is coaxially arranged with the stirring rod 5. A moving ring 31 and a moving ring 32 are slidably connected vertically inside the bushing 3. The moving ring 31 is located below the moving ring 32. The bushing 3 guides and supports the moving ring 31 and the moving ring 32. A main sealing ring 21 and an auxiliary sealing ring 22 are slidably connected vertically inside the vessel lid 2 and are slidably connected with the vessel lid 2 vertically. The main sealing ring 21 is located below the bushing 3, and the auxiliary sealing ring 22 is located above the bushing 3. The main sealing ring 21 is made of hard alloy, and the auxiliary sealing ring 22 is made of elastic composite material. The vessel lid 2 guides and supports the main sealing ring 21 and the auxiliary sealing ring 22.
[0033] Reference Figure 2 and Figure 3 A connecting block 33 connects the main sealing ring 21 and the first moving ring 31, and a connecting block 34 connects the auxiliary sealing ring 22 and the second moving ring 32. Connecting block 33 connects the main sealing ring 21 and the first moving ring 31, and connecting block 34 connects the auxiliary sealing ring 22 and the second moving ring 32. A separating fluid is stored between the first moving ring 31 and the second moving ring 32. This fluid buffers the movement of the first moving ring 31 and the second moving ring 32, improving their stability.
[0034] Reference Figure 1 and Figure 3 When the pressure inside the vessel 1 increases, the main sealing ring 21 slides upward, and through the connecting block 33, it drives the moving ring 31 to move upward. The moving ring 31, by applying pressure to the isolating liquid, drives the moving ring 32 to move upward. The moving ring 32, through the connecting block 34, drives the auxiliary sealing ring 22 to move upward, thereby reducing the pressure inside the vessel 1. When the pressure inside the vessel 1 decreases, under the action of negative pressure, the main sealing ring 21 moves downward, and through the connecting block 33, it drives the moving ring 31 to move downward. The moving ring 32 moves downward with the moving ring 31, and through the connecting block 34, it drives the moving ring 32 to move downward, thereby adjusting the pressure inside the vessel 1 and realizing dynamic pressure regulation.
[0035] Reference Figure 2 and Figure 3 The cross section of the auxiliary sealing ring 22 gradually decreases from the middle to both ends along its own radial direction, and it is in contact with both the stirring rod 5 and the inner wall of the vessel lid 2. As the auxiliary sealing ring 22 moves upward, under the limiting action of the inner wall of the vessel lid 2, the auxiliary sealing ring 22 moves closer to and is squeezed towards the stirring shaft, reducing the probability of solution leakage in the vessel body 1, which is beneficial to improving the airtightness and safety of the device.
[0036] Reference Figure 2 and Figure 3The upper end of the vessel lid 2 is provided with a sealing element 4, which includes a sealing ring 41 and a shape memory alloy 42. The sealing ring 41 is located at the upper end of the vessel lid 2 and is coaxially arranged with the stirring rod 5. The vessel lid 2 supports and fixes the sealing ring 41. The shape memory alloy 42 is installed between the sealing ring 41 and the stirring rod 5. The inner wall of the sealing ring 41 has a spiral groove 46, and a cooling pipe 43 is installed in the spiral groove 46. Cold water flows in the cooling pipe 43. A switch 44 for controlling the entry and exit of cold water is installed on the cooling pipe 43. The spiral groove 46 supports and fixes the cooling pipe 43. When the shape memory alloy 42 is cooled, it contracts. When cold water flows in the cooling pipe 43, the shape memory alloy 42 is always in a contracted state, reducing the probability of interfering with the rotation of the stirring rod 5.
[0037] Reference Figure 1 and Figure 3 Several temperature sensors 45 are installed circumferentially on the outer wall of the vessel body 1. All temperature sensors 45 form a thermocouple array. The operator observes the temperature detected by the temperature sensors 45 and calculates the temperature of the inner wall of the vessel body 1 through a thermal conductivity model. When the temperature reaches the preset temperature, the switch 44 on the cooling pipe 43 is turned off, so that the temperature of the vessel body 1 is conducted to the shape memory alloy 42. The shape memory alloy 42 preheats and expands to fill the space between the vessel lid 2 and the stirring rod 5, improving the sealing performance between the sealing ring 41 and the stirring rod 5, which is beneficial to improving the stability of the device operation.
[0038] The implementation principle of the leak-proof coupling reactor in this application embodiment is as follows: When the pressure inside the reactor body 1 increases, the main sealing ring 21 moves upward. The main sealing ring 21 pushes the moving ring 31 upward through the connecting block 33. The moving ring 31 pushes the moving ring 32 upward through the isolation liquid. The moving ring 32 pushes the auxiliary sealing ring 22 upward through the connecting block 34. During the movement, the end face of the auxiliary sealing ring 22 deforms and tightens, and under the restriction of the reactor cover 2, it presses against the stirring rod 5, thereby improving the sealing performance between the auxiliary sealing ring 22 and the stirring rod 5. 1. By sensing the pressure inside the vessel 1 and moving it axially along the vessel cover 2, the pressure inside the vessel 1 can be dynamically adjusted. The operator calculates the temperature inside the vessel 1 by using the temperature sensor 45 to detect the temperature and then using a thermal conductivity model. When the temperature reaches the preset value, the cooling pipe 43 switch 44 is turned off, allowing the temperature of the vessel 1 to be conducted to the shape memory alloy 42. The shape memory alloy 42 expands when heated and fills the space between the sealing ring 41 and the stirring rod 5, thereby improving the sealing between the sealing seat 47 and the stirring rod 5, further improving the airtightness of the device, and helping to improve the stability of the equipment operation.
[0039] Example 2 The difference between this embodiment and embodiment 1 is that the sealing element 4 includes an electromagnetic coil 48 and a sealing seat 47.
[0040] Reference Figure 4 The sealing seat 47 is installed on the vessel body 1 (refer to...). Figure 1 At the upper end, the electromagnetic coil 48 is located inside the sealing seat 47 and is arranged around the axis of the sealing seat 47. The sealing seat 47 fixes and supports the electromagnetic coil 48. The inner wall of the sealing seat 47 has a groove 49 along the circumference. The inner wall of the groove 49 contains magnetorheological fluid. The sealing seat 47 contains the magnetorheological fluid through the groove 49. The operator changes the current intensity and thus the magnetic field intensity, thereby changing the viscosity of the magnetorheological fluid. This allows the magnetorheological fluid to fill the gap between the sealing seat 47 and the stirring rod 5, thereby improving the airtightness between the lid 2 and the stirring rod 5, and thus improving the stability and safety of the device.
[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A leak-proof coupling reactor, comprising a reactor body (1) and a reactor cover (2), wherein the reactor cover (2) is connected to the upper end of the reactor body (1), and a motor (23) is provided at the upper end of the reactor cover (2). A stirring rod (5) is coaxially fixedly connected to the output shaft of the motor (23). The stirring rod (5) passes through the reactor cover (2) and is rotatably connected to the reactor cover (2) coaxially. A flow guide plate (51) for stirring the solution is provided on the stirring rod (5). A baffle plate (6) is provided circumferentially on the inner wall of the reactor body (1). The reactor body (1) is characterized in that: The vessel lid (2) is provided with a bushing (3), a main sealing ring (21), and an auxiliary sealing ring (22). The bushing (3), the main sealing ring (21), and the auxiliary sealing ring (22) are all fitted on the outside of the stirring rod (5). The outer wall of the bushing (3) is connected to the inner wall of the vessel lid (2). The main sealing ring (21) and the auxiliary sealing ring (22) are rotatably connected to the stirring rod (5) and slidably connected to the inner wall of the vessel lid (2) along the longitudinal direction. A first moving ring (31) and a second moving ring (32) are slidably connected in the vertical direction inside the bushing (3). The first moving ring (31) and the second moving ring (32) are both fitted on the outside of the stirring rod (5). The first moving ring (31) is located on the outside of the moving ring. Below the second (32), a vacuum space is formed between the first (31), the second (32) and the inner wall of the bushing (3). The auxiliary sealing ring (22) is located at the upper end of the bushing (3), and the main sealing ring (21) is located at the lower end of the bushing (3). A connecting block (33) is connected between the main sealing ring (21) and the first (31), and a connecting block (34) is connected between the auxiliary sealing ring (22) and the second (32). The auxiliary sealing ring (22) is made of elastic composite material, and the main sealing ring (21) is made of hard alloy. The upper end of the lid (2) is also provided with a sealing element (4) for sealing the gap between the stirring shaft and the lid (2).
2. The leak-proof coupling reactor according to claim 1, characterized in that: The cross-sectional area of the auxiliary sealing ring (22) gradually decreases from the middle to both sides.
3. The leak-proof coupling reactor according to claim 1, characterized in that: The bushing (3) stores a separating fluid between the two moving rings.
4. The leak-proof coupling reactor according to claim 1, characterized in that: The sealing element (4) includes a sealing ring (41) and a shape memory alloy (42). The sealing ring (41) is located at the upper end of the lid (2) and is sleeved on the outside of the stirring rod (5). The shape memory alloy (42) is located between the sealing ring (41) and the stirring rod (5). A cooling pipe (43) for cooling the shape memory alloy (42) is connected inside the sealing ring (41). A switch (44) is provided on the cooling pipe (43). Several temperature sensors (45) are provided on the outer wall of the vessel body (1). The several temperature sensors (45) form a thermocouple array.
5. A leak-proof coupling reactor according to claim 4, characterized in that: The inner wall of the sealing ring (41) is provided with a spiral groove (46) along the circumference, and the cooling pipe (43) is located in the spiral groove (46).
6. The leak-proof coupling reactor according to claim 1, characterized in that: The sealing element (4) includes an electromagnetic coil (48) and a sealing seat (47). The sealing seat (47) is sleeved on the outside of the stirring rod (5). The outside of the stirring rod (5) is provided with a silicon nitride mechanical cover. The electromagnetic coil (48) is provided circumferentially inside the sealing seat (47). The inner wall of the sealing seat (47) is provided with a groove (49) circumferentially. The groove (49) contains a magnetorheological fluid. The viscosity of the magnetorheological fluid changes with the magnitude of the magnetic field strength.
7. A leak-proof coupling reactor according to claim 1, characterized in that: The guide plate (51) includes a spiral plate (511) and a vertical plate (512). The spiral plate (511) is wound around the stirring rod (5) along the axial direction of the stirring rod (5), and the vertical plate (512) is located at the lower end of the stirring rod (5) and is parallel to the stirring rod (5).
8. A leak-proof coupling reactor according to claim 7, characterized in that: The spiral plate (511) is divided into several segments along its own axis, and the angles on the sides of adjacent spiral plates (511) that are close to each other are different. The spacing between the spiral plates (511) is distributed according to the gradient of the Reynolds number.