Piston-based tubular reactor
Through the piston-type structural design, the complex structure and inconvenient cleaning of the liquid pump are solved, the smooth flow and reaction of liquid materials are achieved, and the convenience of disassembly and maintenance of the reactor is improved.
Patent Information
- Application Number
- CN202422264034.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-16
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-16
AI Technical Summary
The liquid pump in existing tubular reactors has a complex structure, which is difficult to disassemble and clean. Material residues affect production, and the flow of liquid materials is inconvenient.
Using a piston-based tubular reactor, the lifting and lowering movement of the first piston and the second piston is achieved through the coordination of the connecting rod and the limiting rod, and the piston can be disassembled separately for easy cleaning.
The flow and reaction process of liquid materials are simplified, cleaning convenience is improved, and the disassembly and maintenance of the reactor is ensured.
Smart Images
Figure CN223055587U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tubular reactors, in particular to a tubular reactor based on a piston. Background Art
[0002] In the process of chemical production, reaction kettles or tubular reactors are often used. Among them, the length of the tubular reactor can be very long, which is convenient for continuous operation and reaction, and is suitable for chemical reaction production with high conversion requirements.
[0003] In order to realize the flow of liquid materials in the tubular reactor, a liquid pump can be used to pressurize the liquid materials and then send them into the pipe body. However, the structure of the liquid pump is complex, inconvenient to disassemble and clean, and the residual materials in the liquid pump will also affect the subsequent production, so improvement is needed. Content of the Utility Model
[0004] The purpose of the utility model is to provide a tubular reactor based on a piston, which is used to push and react liquid materials and improve the cleaning convenience.
[0005] To achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A tubular reactor based on a piston, comprising: a pipe body, a cylinder sleeve, a first piston and a second piston. A first flange pointing upward is arranged at the top of one end of the pipe body. The cylinder sleeve is vertically arranged above the first flange. The first piston is arranged in the cylinder sleeve in a liftable manner. A feed inlet is arranged on the side wall of the cylinder sleeve below the first piston. The second piston is arranged in the cylinder sleeve and below the feed inlet. A through hole is arranged in the second piston. A plunger pointing downward to the through hole is arranged at the bottom of the first piston. A connecting rod penetrating downward through the through hole is arranged at the bottom of the plunger. A limiting rod extending below the second piston is radially arranged at the bottom of the connecting rod.
[0007] Wherein, a second flange connected to the first flange is arranged at the bottom of the cylinder sleeve.
[0008] Wherein, a third flange is arranged at the top of the cylinder sleeve. A fixing plate is arranged on the third flange. A telescopic driving device connected to the first piston is arranged on the fixing plate.
[0009] Wherein, the telescopic driving device adopts an air cylinder or a hydraulic cylinder.
[0010] Wherein, a feed pipe connected to the feed inlet is arranged on one side of the cylinder sleeve. A hopper is arranged at the top of the feed pipe.
[0011] Wherein, annular grooves are arranged on the outer circles of the first piston and the second piston. Sealing rings are arranged in the annular grooves.
[0012] Among them, the diameter of the through hole is larger than the diameter of the connecting rod, and the diameter of the through hole is smaller than the diameter of the plunger.
[0013] Among them, the length of the connecting rod is greater than the length of the through hole.
[0014] Advantages of the present utility model: For a piston-based tubular reactor, during the upward movement of the first piston, the second piston is driven to move upward and reset by the limiting rod at the bottom of the connecting rod. At this time, there is a gap between the bottom of the plunger and the top of the through hole, so that the liquid material in the feed port can flow downward through the through hole and enter below the second piston. Then, the first piston moves downward, the plunger moves downward accordingly to block the through hole, and the second piston is driven to move downward. The second piston is used to push the liquid material below into the tube body, ensuring the flow and reaction of the liquid material in the tube body. The first piston and the second piston can be taken out of the cylinder liner for cleaning, and the disassembly and maintenance are convenient. Description of the Drawings
[0015] Figure 1 is a schematic structural view of the present utility model;
[0016] Figure 2 is Figure 1 a partial enlarged view of part A in
[0017] Figure 3 is Figure 2 a schematic structural view after the first piston rises in Detailed Embodiment
[0018] The following Figures 1 to 3 and further illustrate the technical solution of the present utility model through specific embodiments.
[0019] As Figure 1 and Figure 2 shown, the piston-based tubular reactor includes: a tube body 2, a cylinder liner 1, a first piston 11, and a second piston 12. A first flange 9 pointing upward is provided at the top of one end of the tube body 2. The cylinder liner 1 is vertically arranged above the first flange 9. In this embodiment, a second flange 8 connected to the first flange 9 is provided at the bottom of the cylinder liner 1 and fixed by screws, with a stable structure and convenient disassembly and assembly.
[0020] The first piston 11 is arranged in the cylinder liner 1 in a liftable manner. A third flange 7 is provided at the top of the cylinder liner 1. A fixing plate 6 is provided on the third flange 7. A telescopic driving device 5 connected to the first piston is provided on the fixing plate 6. In this embodiment, the telescopic driving device 5 adopts a cylinder or a hydraulic cylinder, and the telescopic control can be realized through a solenoid valve and a PLC to achieve the intermittent lifting of the first piston 11. The fixing plate 6 can be fixed on the third flange 7 by screws, which is convenient for disassembly to clean and maintain the first piston 11.
[0021] As Figure 2 shown, a feed inlet 17 is provided on the side wall of the cylinder liner 1 below the first piston 11. In this embodiment, a feed pipe 3 connected to the feed inlet is provided on one side of the cylinder liner 1, and a hopper 4 is provided at the top of the feed pipe 3 to facilitate the addition of liquid materials, so that the liquid materials enter the space below the first piston 11 in the cylinder liner 1 through the feed pipe 3 and the feed inlet 17.
[0022] The second piston 12 is arranged in the cylinder liner 1 and below the feed inlet 3. A through hole 16 is provided in the second piston 12, and a plunger 13 pointing downward towards the through hole 16 is provided at the bottom of the first piston 11. In this embodiment, the diameter of the through hole 16 is smaller than the diameter of the plunger 13, so that when the plunger 13 moves downward, the through hole 16 is blocked and the through hole 16 is pushed. Annular grooves are provided on the outer circles of the first piston 11 and the second piston 12, and sealing rings 10 are provided in the annular grooves to prevent the leakage of liquid materials at the outer circles of the first piston 11 and the second piston 12 and ensure the pushing pressure.
[0023] A connecting rod 14 is provided at the bottom of the plunger 13 and penetrates downward through the through hole 16. A limiting rod 15 extending below the second piston 12 is radially provided at the bottom of the connecting rod 14. In this embodiment, the diameter of the through hole 16 is larger than the diameter of the connecting rod 14 to prevent the connecting rod 14 from blocking the through hole 16, and the length of the connecting rod 14 is greater than the length of the through hole 16. As Figure 3 shown, it is beneficial to maintain the gap between the bottom of the plunger 13 and the top of the through hole 16 when the connecting rod 14 moves upward.
[0024] As Figure 3 shown, during the upward movement of the first piston 11, the second piston 12 is driven to move upward and reset by the limiting rod 15 at the bottom of the connecting rod 14. At this time, there is a gap between the bottom of the plunger 13 and the top of the through hole 16, so that the liquid materials in the feed inlet 17 can flow downward through the through hole 16 into the space below the second piston 12. Then the first piston 11 moves downward. As Figure 2 shown, the plunger 13 moves downward accordingly to block the through hole 16 and drives the second piston 12 to move downward, and the second piston 12 is used to push the liquid materials below into the pipe body 2, ensuring the flow and reaction of the liquid materials in the pipe body 2. The structure is simple. After the fixing plate 6 is disassembled, the first piston 11 and the second piston 12 can be taken out of the cylinder liner 1 for separate cleaning, which is convenient for maintenance.
[0025] The above content is only the preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. The content of this specification should not be construed as a limitation to the present invention.
Claims
1. A piston-based tubular reactor, characterized in that, Comprising: A pipe body, a cylinder liner, a first piston and a second piston. At the top of one end of the pipe body, there is a first flange pointing upward. The cylinder liner is vertically arranged above the first flange. The first piston is vertically movably arranged in the cylinder liner. On the side wall of the cylinder liner, there is a feed inlet located below the first piston. The second piston is arranged in the cylinder liner and is located below the feed inlet. A through hole is arranged in the second piston. At the bottom of the first piston, there is a plunger pointing downward towards the through hole. At the bottom of the plunger, there is a connecting rod extending downward through the through hole. Radially arranged at the bottom of the connecting rod is a limiting rod extending below the second piston.
2. The tubular reactor based on a piston according to claim 1, wherein, At the bottom of the cylinder liner, there is a second flange connected to the first flange.
3. The tubular reactor based on a piston according to claim 1, characterized in that, At the top of the cylinder liner, there is a third flange. On the third flange, there is a fixing plate. On the fixing plate, there is a telescopic driving device connected to the first piston.
4. The tubular reactor based on a piston according to claim 3, wherein, The telescopic driving device uses a pneumatic cylinder or a hydraulic cylinder.
5. The tubular reactor based on a piston according to claim 1, characterized in that, On one side of the cylinder liner, there is a feed pipe connected to the feed inlet. At the top of the feed pipe, there is a hopper.
6. The tubular reactor based on a piston according to claim 1, wherein, On the outer circumferences of the first piston and the second piston, there are annular grooves. In the annular grooves, there are sealing rings.
7. The piston-based tubular reactor according to claim 1, wherein The diameter of the through hole is larger than the diameter of the connecting rod, and the diameter of the through hole is smaller than the diameter of the plunger.
8. The tubular reactor based on a piston according to claim 1, wherein, The length of the connecting rod is larger than the length of the through hole.