Modular reaction kettle system
Through the design of the modular reactor system, including guide pipes, overflow pipes, connecting pipes and safety protection pipes, the problems of high investment in the construction of existing reactor systems, high maintenance costs and pipeline blockage are solved, and the effect of reducing maintenance costs and improving production flexibility is achieved.
Patent Information
- Application Number
- CN202420663728.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-01
AI Technical Summary
During the chemical reaction process, the existing reactor system requires multiple stirring reactors to be connected in series, resulting in high construction investment costs and high maintenance costs, and pipeline blockages are likely to affect normal production.
The modular reactor system is adopted. Through the setting of the guide pipe and the overflow pipe, the materials are ensured to enter and exit, and inspection holes are reserved on the top to facilitate inspection and cleaning of the material in the overflow pipe; the pipe connecting the bottom of the kettle connects the premixed kettle, the reaction kettle and the circulation pump, which is convenient for adjusting the flow rate, reaction time, and maintenance of the tank; through the setting of the safety protection pipeline and the one-way valve, the material is prevented from flowing into the first-stage reaction kettle when the first-stage overflow pipe and the first-stage connecting pipe are blocked.
It reduces maintenance costs, reduces the impact of pipeline blockage on normal production, and improves the flexibility and adaptability of the reactor system.
Smart Images
Figure CN222678012U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of modular reactors, in particular to a modular reactor system. Background Art
[0002] Reactors are equipment used for chemical reactions in the chemical industry and other industrial processes. In actual production, reactors are mostly used for production reactions of chemicals, polymers, pharmaceuticals, food, fuels and other products. They have many advantages such as controllable temperature, adjustable pressure and uniform mixing.
[0003] In the chemical reaction process, in order to meet the purposes of continuous production mixing and reaction, multiple stirred reactors need to be connected in series, and materials are transferred between reactors through transfer pumps. This requires high construction investment costs, high pump equipment operation and maintenance costs, and pipeline blockages that affect normal production. Utility Model Content
[0004] In view of the deficiencies in the above prior art, the purpose of the utility model is to provide a modular reactor system, which ensures that materials enter from top to bottom and exit from bottom through the arrangement of a material guide pipe and an overflow pipe, and reserves an inspection hole at the top to facilitate the inspection and cleaning of material scale in the overflow pipe; the bottom connecting pipe of the reactor connects the premixing kettle, the reactor and the circulating pump, which is convenient for adjusting the flow rate, reaction time, and maintenance and tank cleaning, greatly reducing the maintenance cost; through the arrangement of a safety protection pipe and a one-way valve, when the first-level overflow pipe and the first-level connecting pipe are blocked, the material in the premixing kettle can still flow into the first-level reactor, greatly reducing the impact of pipeline blockage on normal production.
[0005] The utility model is realized by adopting the following technical solutions:
[0006] The modular reactor system comprises a premixing kettle, which is connected to a primary reactor via a primary overflow pipe, and the primary reactor is connected to a secondary reactor via a secondary overflow pipe. A primary material guide pipe is arranged inside the premixing kettle, one end of which extends into the bottom of the premixing kettle, and the other end is connected to the primary overflow pipe.
[0007] The premixing kettle, the first-stage reactor and the second-stage reactor are all provided with stirring devices, and the first-stage reactor and the second-stage reactor are both provided with inspection holes.
[0008] The premixing kettle is provided with a feed pipe and an inspection hole. The premixing kettle is connected to the first-level reaction kettle through a first-level connecting pipe, and the first-level connecting pipe is located below the first-level overflow pipe.
[0009] The first-level connecting pipeline is connected to the circulation pump through the discharge pipeline, the circulation pump is connected to the return pipeline, and the return pipeline is connected to the premixing kettle through the pipeline of the first-level reactor.
[0010] The return pipeline is connected to the primary reactor through the pipeline entering the secondary reactor. A safety protection pipeline is arranged between the pipeline entering the primary reactor and the pipeline entering the secondary reactor. A one-way valve is arranged on the safety protection pipeline.
[0011] A secondary material guide pipe is arranged inside the primary reactor, the secondary material guide pipe extends into the bottom of the primary reactor, and the upper end of the secondary material guide pipe is connected to the secondary reactor through a secondary overflow pipe.
[0012] A secondary connecting pipe is connected between the primary reactor and the secondary reactor. The secondary connecting pipe is located below the secondary overflow pipe and is connected to the discharge pipe through a pipe.
[0013] The first reactor is connected with an emptying pipeline below, the second reactor is provided with a heating coil inside, and the second reactor is connected with a discharge pipeline through a pipeline. The emptying pipeline is used to discharge the material in the reactor.
[0014] The return pipeline is connected to the primary reactor through the secondary reactor inlet pipeline, and the discharge pipeline is connected to the feed pump through the pipeline.
[0015] A feed pipe is installed on the top of the premixing kettle, and vertical semicircular guide pipes are installed on the inner walls of the premixing kettle and the first-level reactor. The cross-sectional area meets the flow rate requirements. The lower end of the guide pipe is 500mm away from the bottom of the kettle, and the upper end reaches the top of the kettle. A DN350 quick-opening inspection hole is opened on the top kettle cover, and both sides of the semicircular overflow pipe are welded to the tank wall; the premixing tank to the first-level reactor, and the first-level reactor to the second-level reactor are connected with a ￠525mm pipe; the discharge port at the bottom of the second-level reactor is connected to the inlet of the circulation pump, and the bottom pipes of the premixing tank and the first-level reactor are connected to the discharge pipe; a heat exchange pipe is installed in the second-level reactor to accurately control the final discharge temperature.
[0016] During production, multiple materials continuously enter the premixing kettle (volume V1) from the feed pipe, the liquid level in the kettle continues to rise and stir evenly, and after being filled with materials, they enter the primary reactor through the primary overflow pipe connected to the secondary reactor (volume V2). After the primary reactor is full, it enters the secondary reactor (volume V3) through the secondary overflow pipe. After adjusting the temperature in the secondary reactor according to production requirements, the reacted materials are pumped to the next production link through the delivery pump (flow F). According to the reaction time t and the output demand, the flow rate and the total tank capacity are calculated, that is: t = (V1 + V2 + V3) ÷ F, and the reaction time and total capacity at this time are the maximum value; after the modular reactor is put into use, if the reaction time needs to be adjusted, it can be achieved by adjusting the total tank volume (liquid level) and the total pump output. It is convenient and flexible and can adapt to different reaction processes and reaction conditions.
[0017] When a circulation reaction is required, start the circulation pump to transfer the material back to the reactor through the return pipe for sufficient reaction; when the first-level overflow pipe and the first-level connecting pipe are blocked, the material can enter the first-level reactor through the safety protection pipe and the one-way valve, and the valves on the pipes entering the first-level reactor and the pipes entering the second-level reactor are in the normally open state.
[0018] In order to avoid uneven mixing of overflow materials and insufficient reaction time, the unique material guide pipe and overflow pipe are used to make it close to the bottom of the kettle to ensure that the material enters from the top and exits from the bottom. An inspection hole is reserved at the top to facilitate the inspection and cleaning of material scale in the overflow pipe.
[0019] Compared with the prior art, the beneficial effects of the utility model are:
[0020] The modular reactor system of the utility model is adopted, and the material is ensured to enter from the top and exit from the bottom through the arrangement of the material guide pipe and the overflow pipe, and an inspection hole is reserved at the top to facilitate the inspection and cleaning of the material scale in the overflow pipe; the connecting pipe at the bottom of the reactor connects the premixing kettle, the reactor and the circulating pump, which is convenient for adjusting the flow rate, reaction time, and maintenance and tank cleaning, greatly reducing the maintenance cost; through the arrangement of the safety protection pipeline and the one-way valve, when the first-level overflow pipe and the first-level connecting pipeline are blocked, the material in the premixing kettle can still flow into the first-level reactor, greatly reducing the impact of pipeline blockage on normal production. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the structure of the modular reactor system of the utility model;
[0022] In the figure: 1. premixing kettle; 2. primary reactor; 3. secondary reactor; 4. circulation pump; 5. feed pump; 6. feed pipe; 7. inspection hole; 8. primary guide pipe; 9. primary overflow pipe; 10. secondary guide pipe; 11. secondary overflow pipe; 12. heating coil; 13. drain pipe; 14. primary connecting pipe; 15. secondary connecting pipe; 16. discharge pipe; 17. return pipe; 18. pipe into primary reactor; 19. pipe into secondary reactor; 20. safety protection pipe; 21. one-way valve. DETAILED DESCRIPTION
[0023] In order to make the purpose and technical solution of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings.
[0024] Example 1
[0025] like Figure 1As shown, the modular reactor system includes a premixing reactor 1, which is connected to the primary reactor 2 through a primary overflow pipe 9, and the primary reactor 2 is connected to the secondary reactor 3 through a secondary overflow pipe 11. A primary guide pipe 8 is provided inside the premixing reactor 1, one end of which extends into the bottom of the premixing reactor 1, and the other end is connected to the primary overflow pipe 9. A stirring device is provided inside the premixing reactor 1, the primary reactor 2 and the secondary reactor 3, and an inspection hole is provided on the primary reactor 2 and the secondary reactor 3. A feed pipe 6 and an inspection hole 7 are provided on the premixing reactor 1, and the premixing reactor 1 is connected to the primary reactor 2 through a primary connecting pipe 14, and the primary connecting pipe 14 is located below the primary overflow pipe 9. The primary connecting pipe 14 is connected to the circulation pump 4 through the discharge pipe 16, and the circulation pump 4 is connected to the return pipe 17, and the return pipe 17 is connected to the premixing reactor 1 through the feed pipe 18 to the primary reactor. The return pipe 17 is connected to the primary reactor 2 through the secondary reactor inlet pipe 19, and a safety protection pipe 20 is provided between the primary reactor inlet pipe 18 and the secondary reactor inlet pipe 19, and a one-way valve 21 is provided on the safety protection pipe 20. A secondary guide pipe 10 is provided inside the primary reactor 2, and the secondary guide pipe 10 extends into the bottom of the primary reactor 2, and the upper end of the secondary guide pipe 10 is connected to the secondary reactor 3 through the secondary overflow pipe 11. A secondary connecting pipe 15 is connected between the primary reactor 2 and the secondary reactor 3, and the secondary connecting pipe 15 is located below the secondary overflow pipe 11, and the secondary connecting pipe 15 is connected to the discharge pipe 16 through a pipe. An emptying pipe 13 is connected below the primary reactor 2, and a heating coil 12 is provided inside the secondary reactor 3, and the secondary reactor 3 is connected to the discharge pipe 16 through a pipe. The return pipe 17 is connected to the primary reactor 2 through the secondary reactor inlet pipe 19, and the discharge pipe 16 is connected to the feed pump 5 through a pipe.
[0026] The above modular reactor system, when in operation, comprises the following steps:
[0027] (1) During production, various materials continuously enter the premixing reactor 1 from the feed pipe, the liquid level in the reactor continues to rise and is stirred evenly. After being filled with materials, they can enter the primary reactor 2 through the primary overflow pipe 9 connected to the primary reactor 2. After the primary reactor 2 is full, it enters the secondary reactor 3 through the secondary overflow pipe 11. After the temperature in the secondary reactor 3 is adjusted according to production requirements, the reacted materials are pumped to the next production link through the feed pump 5; (2) When a cyclic reaction is required, the circulation pump 4 is turned on to transport the materials back to the reactor through the return pipe 17 for sufficient reaction; (3) When the primary overflow pipe 9 and the primary connecting pipe 14 are blocked, the materials can enter the primary reactor 2 through the safety protection pipe 20 and the one-way valve 21, and the valves on the pipe 18 entering the primary reactor and the pipe 19 entering the secondary reactor are in a normally open state.
Claims
1. A modular reactor system, characterized in that: The invention comprises a premixing kettle (1), wherein the premixing kettle (1) is connected to a primary reactor (2) via a primary overflow pipe (9), and the primary reactor (2) is connected to a secondary reactor (3) via a secondary overflow pipe (11). A primary material guide pipe (8) is arranged inside the premixing kettle (1), and one end of the primary material guide pipe (8) extends into the bottom of the premixing kettle (1), and the other end is connected to the primary overflow pipe (9).
2. The modular reactor system according to claim 1, characterized in that: The premixing kettle (1) is provided with a feed pipe (6) and an inspection hole (7). The premixing kettle (1) is connected to the primary reaction kettle (2) via a primary connecting pipe (14). The primary connecting pipe (14) is located below the primary overflow pipe (9).
3. The modular reactor system according to claim 2, characterized in that: The first-stage connecting pipe (14) is connected to the circulation pump (4) via the discharge pipe (16), the circulation pump (4) is connected to the return pipe (17), and the return pipe (17) is connected to the premixing kettle (1) via the first-stage reaction kettle pipe (18).
4. The modular reactor system according to claim 3, characterized in that: The return pipe (17) is connected to the primary reactor (2) via the secondary reactor inlet pipe (19), a safety protection pipe (20) is provided between the primary reactor inlet pipe (18) and the secondary reactor inlet pipe (19), and a one-way valve (21) is provided on the safety protection pipe (20).
5. The modular reactor system according to claim 3, characterized in that: A secondary material guide pipe (10) is provided inside the primary reactor (2). The secondary material guide pipe (10) extends into the bottom of the primary reactor (2). The upper end of the secondary material guide pipe (10) is connected to the secondary reactor (3) through a secondary overflow pipe (11).
6. The modular reactor system according to claim 5, characterized in that: A secondary connecting pipe (15) is connected between the primary reactor (2) and the secondary reactor (3). The secondary connecting pipe (15) is located below the secondary overflow pipe (11). The secondary connecting pipe (15) is connected to the discharge pipe (16) through a pipe.
7. The modular reactor system according to claim 3, characterized in that: The first reactor (2) is connected to an emptying pipe (13) at its lower part, a heating coil (12) is provided inside the second reactor (3), and the second reactor (3) is connected to a discharge pipe (16) via a pipe.
8. The modular reactor system according to claim 3, characterized in that: The discharge pipe (16) is connected to the feed pump (5) via a pipe.