Magnetic sealing stirring system
By using a magnetic sealing stirring system on the glass-lined stirring kettle, combined with perfluoroether and PTFE gaskets, the leakage problem of the glass-lined stirring kettle is solved, achieving zero leakage and low maintenance cost, and adapting to different stirring needs and environments.
Patent Information
- Application Number
- CN202422680347.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-05
AI Technical Summary
Existing glass-lined mixing kettles have leakage problems in high-risk and explosive media, and traditional mechanical sealing systems cannot meet the requirements of corrosion resistance and zero leakage.
The magnetic sealing stirring system is adopted, including the glass-lined stirring kettle body, magnetic sealing system, perfluoroether and PTFE gaskets, combined with the motor reducer and coupling, and the adjustable structure is designed to adapt to different installation environments, reducing maintenance complexity and cost.
The zero leakage performance of the glass-lined mixing kettle is achieved, which reduces maintenance costs and the need for frequent replacement of seals, improves the installation accuracy and stability of the equipment, and adapts to different mixing needs and environments.
Smart Images

Figure CN223474879U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnetic sealing and stirring technology, and in particular to a magnetic sealing and stirring system. Background Technology
[0002] The key component of a magnetically stirred reactor, the magnetic coupling drive, is a transmission device that uses permanent magnets for coupling transmission. It changes the dynamic sealing structure of traditional mechanical seals and packing seals, which rely on bushings or packing to seal the stirring shaft, to a static sealing structure. The medium inside the reactor is completely contained within the sealed cavity formed by the reactor body and the sealing cover, completely solving the insurmountable leakage problem caused by dynamic sealing in packing seals and mechanical seals. This ensures that the reaction medium is completely free from leakage and pollution, making it the most ideal device for chemical reactions under high temperature and high pressure. In particular, it demonstrates its superiority in chemical reactions involving flammable, explosive, and toxic media. Existing magnetically sealed reactors mainly use stainless steel for the stirring system and reactor body, which limits their use for media such as hydrochloric acid and sulfuric acid.
[0003] Glass-lined stirred tanks are widely used in the chemical and pharmaceutical industries due to their superior corrosion resistance and energy efficiency. Traditional glass-lined stirred tanks mostly use mechanical seal systems for stirring and sealing. In some high-risk and explosive media, leakage is inevitable. How to apply a magnetic sealing system to glass-lined stirred tanks to achieve both corrosion resistance and zero leakage is an urgent problem to be solved. Therefore, we propose a magnetic sealing stirring system to solve this problem. Utility Model Content
[0004] The purpose of this invention is to provide a magnetic sealing stirring system to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A magnetic sealing stirring system includes: a glass-lined stirring vessel body, a glass-lined stirring vessel lid movably abutting the top of the glass-lined stirring vessel body, four sets of columns fixedly installed on the top of the glass-lined stirring vessel lid, frame nuts fixedly installed inside the four sets of columns, and nut bodies threadedly connected to the outside of the four sets of frame nuts, a magnetic sealing system provided on the top of the glass-lined stirring vessel lid, a frame plate fixedly installed on the outside of the magnetic sealing system, a perfluoroether disposed inside the magnetic sealing system, a PTFE gasket disposed on one side of the perfluoroether, and a leak detection port disposed on one side of the PTFE gasket.
[0007] Preferably, the magnetic sealing system is equipped with a motor reducer at the top, the glass-lined stirring vessel is equipped with an upper coupling inside, the lower coupling is equipped with a lower coupling at the bottom, the lower coupling is internally threaded with a glass-lined stirring shaft, multiple sets of stirring blades are fixedly installed on the outer side of the glass-lined stirring shaft, and the top of the glass-lined stirring shaft is equipped with a lifting port.
[0008] Preferably, the interior of the multiple sets of columns is provided with slots, the multiple sets of frame nuts are fixedly installed in the corresponding slots, and the bottom of the glass-lined mixing vessel is provided with a discharge port.
[0009] Preferably, all of the aforementioned stirring blades and glass-lined stirring shafts are made of carbon steel substrate with an outer glass layer. The use of glass-lined material is not only corrosion-resistant but also has a low cost.
[0010] Preferably, a clip is provided between the glass-lined stirring vessel lid and the glass-lined stirring vessel body.
[0011] Preferably, the upper coupling is fixedly installed on the output end of the motor reducer coupling, the reducer output end is connected to the magnetic sealing system, and the output end of the magnetic sealing system is connected to the output ends of the upper and lower couplings.
[0012] In this utility model, the magnetic sealing stirring system allows for easy replacement of the stirring shaft and connecting components by removing the equipment clips, disassembling the upper coupling, and loosening the threaded connection between the lower coupling and the glass-lined stirring shaft. This facilitates maintenance. The design of the magnetic sealing stirrer results in lower maintenance costs, reduces the need for frequent replacement of seals, and lowers the complexity and cost of maintenance. When the stirring system malfunctions or requires component replacement, maintenance personnel can quickly perform the operation, significantly shortening maintenance time.
[0013] This utility model has a reasonable structural design. In use, the frame nuts are welded to the four pillars of the glass-lined mixing vessel cover, the nuts are installed on the frame nuts, the frame plate is placed on the nut body according to the bolt hole positions, the tightening length of the nut body is adjusted, the level of the frame plate and the compression of the pipe gasket are adjusted, after leveling, the frame plate is fixed to the frame nuts with bolts, the magnetic sealing system is installed on the frame plate, the glass-lined stirring shaft is tightened with the lower coupling, the upper and lower couplings are installed inside the mixing vessel, the glass-lined mixing vessel body is assembled, the motor reducer is installed on top of the magnetic sealing system, and the motor reducer is started to operate. This adjustability can adapt to different installation environments and requirements, ensuring the accuracy and stability of equipment installation. The adjustable design allows the equipment to be flexibly adjusted according to different mixing vessel specifications, stirring needs and working environments. Attached Figure Description
[0014] Figure 1 This is a partial cross-sectional view of a magnetic sealing stirring system proposed in this utility model;
[0015] Figure 2 This is a cross-sectional structural diagram of a magnetic sealing stirring system proposed in this utility model;
[0016] Figure 3 This is a cross-sectional structural diagram of the perfluoroether, leak detection port, and PTFE gasket of a magnetic sealing stirring system proposed in this utility model.
[0017] Figure 4 This is a cross-sectional view of the glass-lined stirring shaft, lifting port, and stirring blades of a magnetic sealing stirring system proposed in this utility model.
[0018] Figure 5 This is a cross-sectional view of the frame nut of a magnetic sealing stirring system proposed in this utility model.
[0019] In the diagram: 1. Glass-lined mixing vessel body; 2. Glass-lined mixing vessel cover; 3. Frame nut; 4. Nut body; 5. Frame plate; 6. Magnetic sealing system; 7. Motor reducer; 8. Glass-lined mixing shaft; 9. Clamp; 10. Perfluoroether; 11. Leak detection port; 12. PTFE gasket; 13. Lifting port; 14. Mixing blade; 15. Upper coupling; 16. Lower coupling. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figure 1-5 A magnetic sealing stirring system includes: a glass-lined stirring vessel body 1, a glass-lined stirring vessel cover 2 movably abutting the top of the glass-lined stirring vessel body 1, four sets of columns fixedly installed on the top of the glass-lined stirring vessel cover 2, frame nuts 3 fixedly installed inside the four sets of columns, nut bodies 4 threadedly connected to the outside of the four sets of frame nuts 3, a magnetic sealing system 6 provided on the top of the glass-lined stirring vessel cover 2, a frame plate 5 fixedly installed on the outside of the magnetic sealing system 6, a perfluoroether 10 provided inside the magnetic sealing system 6, a PTFE gasket 12 provided on one side of the perfluoroether 10, and a leak detection port 11 provided on one side of the PTFE gasket 12.
[0022] In this embodiment, a motor reducer 7 is provided on the top of the magnetic sealing system 6, an upper coupling 15 is provided inside the glass-lined stirring vessel 1, a lower coupling 16 is provided at the bottom of the upper coupling 15, a glass-lined stirring shaft 8 is threadedly connected inside the lower coupling 16, multiple sets of stirring blades 14 are fixedly installed on the outside of the glass-lined stirring shaft 8, and a lifting port 13 is provided on the top of the glass-lined stirring shaft 8.
[0023] In this embodiment, multiple sets of columns are provided with internal slots, and multiple sets of frame nuts 3 are fixedly installed in the corresponding slots. The bottom of the glass-lined mixing vessel 1 is provided with a discharge port.
[0024] In this embodiment, the multiple sets of stirring blades 14 and the glass-lined stirring shaft 8 are all made of carbon steel substrate and have a glass-lined outer surface.
[0025] In this embodiment, a clip 9 is provided between the glass-lined stirring vessel lid 2 and the glass-lined stirring vessel body 1.
[0026] In this embodiment, the upper coupling 15 is fixedly installed on the motor reducer 7, and the coupling is installed at the output end of the magnetic sealing system. The output end of the reducer is connected to the magnetic sealing system 6, and the output end of the magnetic sealing system 6 is connected to the output ends of the upper coupling 15 and the lower coupling 16.
[0027] In this embodiment, during use, the frame nut 3 is welded to the four supports of the glass-lined stirring vessel cover 2, the nut is installed on the frame nut 3, the frame plate 5 is placed on the nut body 4 according to the bolt hole orientation, the tightening length of the nut body 4 is adjusted, the level of the frame plate 5 and the compression of the pipe gasket are adjusted, after leveling, the frame plate 5 is fixed to the frame nut 3 with bolts, the magnetic sealing system 6 is installed on the frame plate 5, the glass-lined stirring shaft 8 is tightened with the lower coupling 16, the upper and lower couplings 16 are installed inside the stirring vessel, the glass-lined stirring vessel body 1 is assembled, the motor reducer 7 is installed on top of the magnetic sealing system 6, and the motor reducer 7 is started to operate. This adjustability allows the equipment to adapt to different installation environments and requirements, ensuring the accuracy and stability of the installation. The adjustable design enables the equipment to be flexibly adjusted according to different mixing vessel specifications, mixing needs, and working environments. By removing the equipment clip 9, disconnecting the upper coupling 15, and loosening the threaded connection between the lower coupling 16 and the glass-lined mixing shaft 8, the mixing shaft and connecting parts can be replaced, making maintenance easy. The design of the magnetic seal agitator reduces maintenance costs, decreases the need for frequent seal replacements, and lowers the complexity and cost of maintenance. When the mixing system malfunctions or needs to replace parts, maintenance personnel can operate quickly, significantly shortening maintenance time.
[0028] The magnetic sealing stirring system provided by this utility model has been described in detail above. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A magnetically sealed stirring system, characterized in that, include: A glass-lined stirring vessel body (1) is provided. A glass-lined stirring vessel cover (2) is fixedly welded to the top of the glass-lined stirring vessel body (1). Four sets of columns are fixedly installed on the top of the glass-lined stirring vessel cover (2). A frame nut (3) is fixedly installed inside each of the four sets of columns. A nut body (4) is threadedly connected to the outside of each of the four sets of frame nuts (3). A magnetic sealing system (6) is provided on the top of the glass-lined stirring vessel cover (2). A frame plate (5) is fixedly installed on the outside of the magnetic sealing system (6). Perfluoroether (10) is provided inside the magnetic sealing system (6). A PTFE gasket (12) is provided on one side of the perfluoroether (10). A leak detection port (11) is provided on one side of the PTFE gasket (12).
2. The magnetic sealing stirring system according to claim 1, characterized in that, The magnetic sealing system (6) is equipped with a motor reducer (7) at the top. The glass-lined stirring vessel body (1) is equipped with an upper coupling (15) inside. The bottom of the upper coupling (15) is equipped with a lower coupling (16). The lower coupling (16) is internally threaded with a glass-lined stirring shaft (8). Multiple sets of stirring blades (14) are fixedly installed on the outside of the glass-lined stirring shaft (8). The top of the glass-lined stirring shaft (8) is equipped with a lifting port (13).
3. The magnetic sealing stirring system according to claim 1, characterized in that, The interior of the multiple sets of columns is provided with slots and holes, and the bottom of the glass-lined stirring vessel (1) is provided with a discharge port.
4. The magnetic sealing stirring system according to claim 2, characterized in that, The multiple sets of stirring blades (14) and glass-lined stirring shafts (8) are all made of carbon steel and have a glass-lined outer surface.
5. A magnetically sealed stirring system according to claim 1, characterized in that, A clip (9) is provided between the glass-lined stirring vessel cover (2) and the glass-lined stirring vessel body (1).
6. A magnetically sealed stirring system according to claim 2, characterized in that, The upper coupling (15) is fixedly installed on the motor reducer (7). The coupling is installed at the output end of the magnetic sealing system. The output end of the reducer is connected to the magnetic sealing system (6). The output end of the magnetic sealing system (6) is connected to the output ends of the upper coupling (15) and the lower coupling (16).