A silicon carbide ceramic membrane gas separation device
By designing the switching structure and balancing mechanism of the silicon carbide ceramic membrane gas separation device, the problem of needing to stop for maintenance in the existing technology has been solved, achieving seamless switching of filter components and continuous operation of the equipment, thus extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING AIYUQI FILM TECH CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-26
Smart Images

Figure CN224270703U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of ceramic membrane gas separation devices, specifically a silicon carbide ceramic membrane gas separation device. Background Technology
[0002] Ceramic membrane gas separators are highly efficient and durable gas processing systems that utilize the unique properties of porous ceramic membrane materials for gas separation. By precisely controlling the pore size and distribution, these devices can effectively separate gas mixtures with different molecular sizes or properties, and are widely used in air purification, hydrogen purification, and carbon dioxide capture. Their advantages include high temperature resistance, strong corrosion resistance, and high mechanical strength, enabling long-term stable operation in harsh environments. Furthermore, performance can be further enhanced and service life extended by integrating pre-filters, automatic cleaning systems, and other add-on components. Ceramic membrane gas separators not only improve the efficiency of industrial processes but also provide strong support for environmental protection and energy recovery.
[0003] In existing technologies, ceramic membrane gas separation devices require shutdown for maintenance. Utility Model Content
[0004] The purpose of this invention is to provide a silicon carbide ceramic membrane gas separation device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a silicon carbide ceramic membrane gas separation device, comprising a mounting base and a switching structure. A first filter assembly is fixedly mounted on the top of the mounting base, and a second filter assembly is fixedly mounted on the top of the mounting base. The switching structure is fixedly connected inside the first and second filter assemblies. The first and second filter assemblies have identical structures. A balancing mechanism is fixedly mounted on one side of both the first and second filter assemblies. The switching structure includes a mounting frame, a first gate valve, a second gate valve, a third gate valve, a fourth gate valve, a telescopic rod, a first adjusting rod, a second adjusting rod, an inlet tee, and an outlet tee. The mounting frame is fixedly mounted on the first, second, and third gate valves. Inside the fourth gate valve, the second and fourth gate valves are respectively connected to one side of the air inlet and air outlet of the second filter assembly, the first and third gate valves are respectively connected to one side of the air inlet and air outlet of the first filter assembly, the air inlet tee is fixedly connected between the first and second gate valves, the air outlet tee is disposed between the third and fourth gate valves, the second and first adjusting rods are rotatably installed inside the mounting bracket, the two ends of the second adjusting rod are respectively movably connected to the top of the gate stems of the third and fourth gate valves, the two ends of the first adjusting rod are respectively movably connected to the bottom of the gate stems of the first and second gate valves, and the two ends of the telescopic rod are respectively rotatably connected to the ends of the first and second adjusting rods near the first filter assembly.
[0006] Preferably, the first filter assembly includes a filter body, and a pressure gauge is fixedly installed on one side of the filter body.
[0007] Preferably, a thermometer is fixedly installed on one side of the filter body.
[0008] Preferably, a backflush connection pipe is fixedly installed on one side of the filter body.
[0009] Preferably, the balancing mechanism includes a mounting shell, an air pipe is fixedly mounted on one side of the mounting shell, the air pipe is fixedly connected to one side of the filter body, a limit rod is fixedly mounted inside the mounting shell, a piston plate is slidably mounted on the outer wall of the limit rod, and a spring is sleeved on the outer wall of the limit rod, the spring being located on the side of the piston plate away from the air pipe.
[0010] Preferably, a sealing sleeve is fixedly installed on the outer wall of the piston plate.
[0011] Preferably, a limiting block is fixedly installed inside the mounting housing on the side away from the trachea.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the silicon carbide ceramic membrane gas separation device;
[0013] 1. Air is introduced through the inlet tee and vented through the outlet tee. The coordination between the first adjusting rod, the second adjusting rod, and the mounting bracket allows the telescopic rod to extend, closing the first and third gate valves and opening the second and fourth gate valves. Conversely, when the telescopic rod retracts, it closes the second and fourth gate valves and opens the first and third gate valves. Therefore, this equipment can flexibly switch the operating states of the first and second filter components. As described above, this equipment uses the first and second filter components for alternating filtration, and the equipment will not stop when maintaining one set of filter components.
[0014] 2. The spring provides elastic force to the piston plate towards the air pipe. When the internal air pressure of the filter body is too high, the gas will push the piston plate into the interior of the mounting shell, thereby reducing the internal air pressure of the filter body. When the internal air pressure of the filter body is restored, the spring and piston plate will push the gas inside the mounting shell back into the filter body. In summary, this device has the advantage of balancing the internal air pressure of the filter body within a certain range. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the switching structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the first filter component of this utility model;
[0018] Figure 4 This is a schematic diagram of the balancing mechanism of this utility model.
[0019] In the diagram: 1. Mounting base; 2. First filter assembly; 201. Filter body; 202. Pressure gauge; 203. Thermometer; 204. Backflush connection pipe; 3. Second filter assembly; 4. Switching structure; 401. Mounting bracket; 402. First gate valve; 403. Second gate valve; 404. Third gate valve; 405. Fourth gate valve; 406. Inlet tee; 407. Outlet tee; 408. First adjusting rod; 409. Second adjusting rod; 410. Telescopic rod; 5. Balancing mechanism; 501. Mounting shell; 502. Air pipe; 503. Limiting rod; 504. Piston plate; 505. Spring; 506. Sealing sleeve; 507. Limiting block. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-2 This utility model provides a technical solution: a silicon carbide ceramic membrane gas separation device, including a mounting base 1 and a switching structure 4. A first filter assembly 2 is fixedly installed on the top of the mounting base 1, and a second filter assembly 3 is fixedly installed on the top of the mounting base 1. The switching structure 4 is fixedly connected inside the first filter assembly 2 and the second filter assembly 3. The first filter assembly 2 and the second filter assembly 3 have the same structure. A balancing mechanism 5 is fixedly installed on one side of both the first filter assembly 2 and the second filter assembly 3. The switching structure 4 includes a mounting frame 401, a first gate valve 402, a second gate valve 403, and a third gate valve 404. The system comprises a three-gate valve 404, a fourth gate valve 405, a telescopic rod 410, a first adjusting rod 408, a second adjusting rod 409, an inlet tee 406, and an outlet tee 407. A mounting bracket 401 is fixedly installed inside the first gate valve 402, the second gate valve 403, the third gate valve 404, and the fourth gate valve 405. The second gate valve 403 and the fourth gate valve 405 are respectively connected to one side of the air inlet and the air outlet of the second filter assembly 3. The first gate valve 402 and the third gate valve 404 are respectively connected to one side of the air inlet and the air outlet of the first filter assembly 2. The inlet tee 406 is fixedly connected to the first gate valve 404. Between valve 402 and the second gate valve 403, an outlet tee 407 is located between the third gate valve 404 and the fourth gate valve 405. The second adjusting rod 409 and the first adjusting rod 408 are both rotatably mounted inside the mounting bracket 401. The two ends of the second adjusting rod 409 are movably connected to the tops of the gate stems of the third gate valve 404 and the fourth gate valve 405, respectively. The two ends of the first adjusting rod 408 are movably connected to the bottoms of the gate stems of the first gate valve 402 and the second gate valve 403, respectively. The two ends of the telescopic rod 410 are rotatably connected to the first adjusting rod 408 and the second adjusting rod 409 near the first filter assembly. At one end of component 2, the first filter assembly 2 includes a filter body 201. A pressure gauge 202 and a thermometer 203 are fixedly installed on one side of the filter body 201. The pressure gauge 202 and the thermometer 203 monitor the internal air pressure and temperature of the filter body 201 in real time to ensure that the operation is carried out within a safe range and to help to detect potential problems in a timely manner. A backwash connection pipe 204 is fixedly installed on one side of the filter body 201. The backwash connection pipe 204 is connected to the backwash cleaning system to clean the first filter assembly 2 and the second filter assembly 3.
[0022] The specific implementation method is as follows: air is introduced through the air inlet tee 406 and exhausted through the air outlet tee 407. When the telescopic rod 410 is extended, the first gate valve 402 and the third gate valve 404 can be closed and the second gate valve 403 and the fourth gate valve 405 can be opened by the cooperation between the first adjusting rod 408, the second adjusting rod 409, and the mounting bracket 401. When the telescopic rod 410 is retracted, the second gate valve 403 and the fourth gate valve 405 can be closed and the first gate valve 402 and the third gate valve 404 can be opened. In summary, this equipment can flexibly switch the working state of the first filter component 2 and the second filter component 3. As described above, this equipment uses the first filter component 2 and the second filter component 3 to filter alternately, and the equipment will not stop when maintaining one set of filter components.
[0023] Please see Figure 1-4 This utility model provides a technical solution: a silicon carbide ceramic membrane gas separation device, the balancing mechanism 5 includes a mounting shell 501, a gas pipe 502 is fixedly installed on one side of the mounting shell 501, the gas pipe 502 is fixedly connected to one side of the filter body 201, a limiting rod 503 is fixedly installed inside the mounting shell 501, a piston plate 504 is slidably installed on the outer wall of the limiting rod 503, a spring 505 is sleeved on the outer wall of the limiting rod 503, the spring 505 is located on the side of the piston plate 504 away from the gas pipe 502, a sealing sleeve 506 is fixedly installed on the outer wall of the piston plate 504, the sealing sleeve 506 ensures the sealing between the piston plate 504 and the mounting shell 501, a limiting block 507 is fixedly installed inside the mounting shell 501 on the side away from the gas pipe 502, the limiting block 507 limits the maximum displacement distance of the piston plate 504 inside the mounting shell 501, and prevents the spring 505 from being over-compressed and damaged.
[0024] The specific implementation method is as follows: the spring 505 provides elastic force to the piston plate 504 towards the air pipe 502. When the internal air pressure of the filter body 201 is too high, the gas will push the piston plate 504 into the interior of the mounting shell 501, thereby reducing the internal air pressure of the filter body 201. When the internal air pressure of the filter body 201 is restored, the spring 505 and the piston plate 504 will push the gas inside the mounting shell 501 back into the interior of the filter body 201. In summary, this device has the advantage of balancing the internal air pressure of the filter body 201 within a certain range.
[0025] Working principle: When using this silicon carbide ceramic membrane gas separator, air is introduced through the inlet tee 406 and exhausted through the outlet tee 407. The extension of the telescopic rod 410, achieved through the cooperation of the first adjusting rod 408, the second adjusting rod 409, and the mounting bracket 401, closes the first gate valve 402 and the third gate valve 404 while opening the second gate valve 403 and the fourth gate valve 405. Conversely, retracting the telescopic rod 410 closes the second gate valve 403 and the fourth gate valve 405 while opening the first gate valve 402 and the third gate valve 404. In summary, this equipment can flexibly switch the working states of the first filter assembly 2 and the second filter assembly 3. Therefore, this equipment uses the first filter assembly 2 and the second filter assembly 3 for alternating filtration, and the equipment will not stop when maintaining one set of filter assemblies.
[0026] The pressure gauge 202 and thermometer 203 monitor the internal air pressure and temperature of the filter body 201 in real time to ensure that the operation is carried out within a safe range and to help to detect potential problems in a timely manner. The backwash cleaning system is connected through the backwash connection pipe 204 to clean the first filter component 2 and the second filter component 3.
[0027] Spring 505 provides elastic force to piston plate 504 toward air pipe 502. When the internal air pressure of filter body 201 is too high, the gas will push piston plate 504 into the interior of mounting shell 501, causing the internal air pressure of filter body 201 to decrease. When the internal air pressure of filter body 201 is restored, spring 505 and piston plate 504 will push the gas inside mounting shell 501 back into the interior of filter body 201. In summary, this device has the advantage of balancing the internal air pressure of filter body 201 within a certain range.
[0028] The sealing sleeve 506 ensures the seal between the piston plate 504 and the mounting housing 501, and the limiting block 507 limits the maximum displacement distance of the piston plate 504 inside the mounting housing 501 to prevent the spring 505 from being damaged due to excessive compression.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A silicon carbide ceramic membrane gas separation device, comprising a mounting base (1) and a switching structure (4), wherein a first filter assembly (2) is fixedly mounted on the top of the mounting base (1), a second filter assembly (3) is fixedly mounted on the top of the mounting base (1), and the switching structure (4) is fixedly connected inside the first filter assembly (2) and the second filter assembly (3), wherein the first filter assembly (2) and the second filter assembly (3) have identical structures, and a balancing mechanism (5) is fixedly mounted on one side of both the first filter assembly (2) and the second filter assembly (3), characterized in that: The switching structure (4) includes a mounting bracket (401), a first gate valve (402), a second gate valve (403), a third gate valve (404), a fourth gate valve (405), a telescopic rod (410), a first adjusting rod (408), a second adjusting rod (409), an inlet tee (406), and an outlet tee (407). The mounting bracket (401) is fixedly installed inside the first gate valve (402), the second gate valve (403), the third gate valve (404), and the fourth gate valve (405). The second gate valve (403) and the fourth gate valve (405) are respectively connected to one side of the air inlet and the air outlet of the second filter assembly (3). The first gate valve (402) and the third gate valve (404) are respectively connected to one side of the air inlet and the air outlet of the first filter assembly (2). The air inlet tee (406) is fixedly connected between the first gate valve (402) and the second gate valve (403), and the air outlet tee (407) is located between the third gate valve (404) and the fourth gate valve (405). The second adjusting rod (409) and the first adjusting rod (408) are both rotatably installed inside the mounting bracket (401). The two ends of the second adjusting rod (409) are respectively movably connected to the top of the gate rods of the third gate valve (404) and the fourth gate valve (405). The two ends of the first adjusting rod (408) are respectively movably connected to the bottom of the gate rods of the first gate valve (402) and the second gate valve (403). The two ends of the telescopic rod (410) are respectively rotatably connected to the ends of the first adjusting rod (408) and the second adjusting rod (409) near the first filter assembly (2).
2. The silicon carbide ceramic membrane gas separation device according to claim 1, characterized in that, The first filter assembly (2) includes a filter body (201), and a pressure gauge (202) is fixedly installed on one side of the filter body (201).
3. The silicon carbide ceramic membrane gas separation device according to claim 2, characterized in that, A thermometer (203) is fixedly installed on one side of the filter body (201).
4. The silicon carbide ceramic membrane gas separation device according to claim 2, characterized in that, A backflush connection pipe (204) is fixedly installed on one side of the filter body (201).
5. The silicon carbide ceramic membrane gas separation device according to claim 2, characterized in that, The balancing mechanism (5) includes a mounting shell (501), on one side of which an air pipe (502) is fixedly mounted. The air pipe (502) is fixedly connected to one side of the filter body (201). A limiting rod (503) is fixedly mounted inside the mounting shell (501). A piston plate (504) is slidably mounted on the outer wall of the limiting rod (503). A spring (505) is sleeved on the outer wall of the limiting rod (503). The spring (505) is located on the side of the piston plate (504) away from the air pipe (502).
6. The silicon carbide ceramic membrane gas separation device according to claim 5, characterized in that, A sealing sleeve (506) is fixedly installed on the outer wall of the piston plate (504).
7. The silicon carbide ceramic membrane gas separation device according to claim 5, characterized in that, A limiting block (507) is fixedly installed inside the mounting housing (501) on the side away from the air pipe (502).