Reaction system
By introducing forced outflow technology of pressurized spray and mechanical circulation pump into the dropping reaction system, the problem of poor heat exchange mixing ability in the existing dropping reaction is solved, and more efficient material mixing and shorter contact time are achieved, reducing the occurrence of side reactions.
Patent Information
- Application Number
- CN202422029646.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-21
AI Technical Summary
The current dropping reaction has poor heat exchange and mixing ability, resulting in long contact time and many side reactions.
A reaction system is designed, including a high-position tank, a reactor, a spray mechanism and a heat exchange mechanism, and forced outward reflow is carried out through pressurized spray and a mechanical circulation pump to enhance the heat exchange mixing ability.
It effectively strengthens the heat exchange and mixing ability, shortens the material contact time, and reduces the occurrence of side reactions.
Smart Images
Figure CN223042723U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of chemical reaction equipment, in particular to a reaction system. Background Art
[0002] The dropping reaction is a process often used in the chemical industry. However, at present, the static dropping reaction is generally adopted. This reaction relies on the stirring of the reaction kettle to realize the mixing reaction of materials. During the dropping process, the contact area between materials is small, and the mixing ability and heat transfer ability are poor. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is how to strengthen the heat exchange and mixing ability in the dropping reaction, shorten the contact time, and reduce side reactions. In view of the above technical problems to be solved, a reaction system is proposed.
[0004] To achieve the above object, the utility model provides the following technical solution: A reaction system includes a high-level tank, a reaction kettle, a spraying mechanism, and a heat exchange mechanism. The high-level tank and the reaction kettle are connected through a pipeline. The spraying mechanism is arranged on the connecting pipeline of the high-level tank connecting the reaction kettle. The two ends of the heat exchange mechanism are respectively communicated with the lower end of the reaction kettle and the spraying mechanism. The outflow liquid of the high-level tank and the outflow liquid of the heat exchange mechanism are mixed in the spraying mechanism.
[0005] Further, the spraying mechanism includes a spray head and a mixing chamber. The spray head is arranged above the interior of the mixing chamber. The spray head is connected to the high-level tank through a pipeline. The outflow liquid of the high-level tank is pressurized by the spray head and sprayed into the mixing chamber. The outflow liquid of the heat exchange mechanism is introduced into the mixing chamber. The lower part of the mixing chamber is connected to the reaction kettle through a pipeline.
[0006] Further, a liquid inlet baffle is arranged below the pipeline connecting the mixing chamber and the reaction kettle, and the liquid inlet baffle is located inside the reaction kettle.
[0007] Further, a mixing inlet switch valve is arranged on the connecting pipeline of the mixing chamber and the reaction kettle.
[0008] Further, the heat exchange mechanism includes a heat exchanger, a mechanical circulation pump, a heat exchange switch valve, a liquid discharge switch valve, and a return pipeline. The two ends of the mechanical circulation pump are respectively connected to the reaction kettle and the heat exchanger through pipelines. The liquid discharge switch valve is arranged at the front end of the mechanical circulation pump. The heat exchange switch valve is arranged at the rear end of the mechanical circulation pump. The liquid outlet end of the heat exchanger is connected to the spraying mechanism through the return pipeline.
[0009] Further, a pressure gauge is arranged on the heat exchanger.
[0010] Further, a stirring mechanism is arranged inside the reaction kettle.
[0011] Furthermore, a dropping switch valve is provided at the rear end of the high-level tank, and the dropping switch valve is located between the high-level tank and the spraying mechanism.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] By replacing the dropping device with a pressurized spraying device and performing forced external reflux through a heat exchanger, the heat exchange and mixing capacity of the present utility model is enhanced, the contact time is shortened, and thus side reactions are reduced. Description of the Drawings
[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model. Specific Embodiments
[0015] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0016] Referring to Figure 1 As shown, this specific embodiment discloses a reaction system, including a high-level tank 1, a reaction kettle 2, a spraying mechanism 3, and a heat exchange mechanism 4. The high-level tank 1 and the reaction kettle 2 are connected through a pipeline. The spraying mechanism 3 is arranged on the connecting pipeline connecting the high-level tank 1 and the reaction kettle 2. Both ends of the heat exchange mechanism 4 are respectively communicated with the lower end of the reaction kettle 2 and the spraying mechanism 3. The outflow liquid of the high-level tank 1 and the outflow liquid of the heat exchange mechanism 4 are mixed in the spraying mechanism 3. Specifically, the high-level tank 1 can be a storage tank located higher than the reaction kettle 2, and a pressure difference is formed through the height difference, so that the stored material entering the spraying mechanism 3 from the high-level tank 1 can form a pressure spray, increasing the contact area between the materials during the dropping process. It can also be pressurized in the high-level tank 1 to form a pressure difference.
[0017] The material inside the reaction kettle is heat-exchanged through the heat exchange mechanism 4, so that the temperature of the material can be controlled through the heat exchanger. Moreover, the material coming out of the heat exchange mechanism 4 can be fully mixed with the dropped material in the spraying mechanism 3, so that the material can contact the material in the original reaction kettle more fully, thus solving the problems of poor heat exchange effect and poor mixing effect of the dropping reaction during the dropping process, and reducing the situation of energy waste.
[0018] The spraying mechanism 3 includes a spray head 32 and a mixing chamber 31. The spray head 32 is arranged above the interior of the mixing chamber 31. The spray head 32 is connected to the high-level tank 1 through a pipeline. The liquid flowing out of the high-level tank 1 is pressurized by the spray head 32 and sprayed into the mixing chamber 31. The liquid flowing out of the heat exchange mechanism 4 is introduced into the mixing chamber 31. The lower part of the mixing chamber 31 is connected to the reaction kettle 2 through a pipeline. A mixing inlet switch valve 33 is arranged on the pipeline connecting the mixing chamber 31 and the reaction kettle 2.
[0019] Below the pipeline connecting the mixing chamber 31 and the reaction kettle 2, a liquid inlet baffle 34 is arranged, and the liquid inlet baffle 34 is located inside the reaction kettle 2. By arranging the baffle, the materials flowing out of the mixing chamber can be further fully mixed inside the reaction kettle.
[0020] The heat exchange mechanism 4 includes a heat exchanger 41, a mechanical circulation pump 42, a heat exchange switch valve 43, a liquid discharge switch valve 44 and a return liquid pipeline 45. The two ends of the mechanical circulation pump 42 are respectively connected to the reaction kettle 2 and the heat exchanger 41 through pipelines. The liquid discharge switch valve 44 is arranged at the front end of the mechanical circulation pump 42, and the heat exchange switch valve 43 is arranged at the rear end of the mechanical circulation pump 42. The liquid outlet end of the heat exchanger 41 is connected to the spraying mechanism 3 through the return liquid pipeline 45. Through the control of each switch valve, it can be opened when heat exchange is required.
[0021] Preferably, a pressure gauge 46 is arranged on the heat exchanger 41, so that the working state of the heat exchanger can be effectively observed.
[0022] In addition, a stirring mechanism 21 is arranged inside the reaction kettle 2, and the stirring mechanism 21 can be a stirring paddle driven by a motor.
[0023] Feasibly, a dropping switch valve 11 is arranged at the rear end of the high-level tank 1, and the dropping switch valve 11 is located between the high-level tank 1 and the spraying mechanism 3. The dropping can be started and stopped through each switch.
[0024] In this device, during the dropping reaction process, the circulation pump and the heat exchanger are started to achieve the effect of heat exchange. The spray head is installed. During the circulation process, through the pressurized dropping of the high-level tank, the material is sprayed in a mist shape and fully mixed with the reaction substrate, effectively realizing the full reaction of the dropping material and the reaction substrate and the effect of heat exchange. By replacing the dropping device with a pressurized spraying device and carrying out forced external reflux through mechanical circulation, the heat exchange and mixing ability is strengthened, and the contact time is shortened, thereby reducing side reactions.
[0025] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.
[0026] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "set", "connected", "fixed", "swiveling connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0027] The above has described in detail the embodiments of the present utility model in conjunction with the drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present utility model.
Claims
1. A reaction system, characterized in that: The invention comprises a high-level tank (1), a reactor (2), a spray mechanism (3) and a heat exchange mechanism (4); the high-level tank (1) and the reactor (2) are connected via a pipeline; the spray mechanism (3) is arranged on the connecting pipeline connecting the high-level tank (1) and the reactor (2); the two ends of the heat exchange mechanism (4) are respectively connected with the lower end of the reactor (2) and the spray mechanism (3); the outflowing liquid of the high-level tank (1) and the outflowing liquid of the heat exchange mechanism (4) are mixed in the spray mechanism (3); the spray mechanism (3) comprises a spray head (32) and a mixing chamber (31); the spray head (32) is arranged above the inside of the mixing chamber (31); the spray head (32) is connected to the high-level tank (1) via a pipeline; the outflowing liquid of the high-level tank (1) is sprayed The head (32) is pressurized and sprayed into the mixing chamber (31), the outflow liquid of the heat exchange mechanism (4) is passed into the mixing chamber (31), and the lower part of the mixing chamber (31) is connected to the reaction kettle (2) through a pipeline; the heat exchange mechanism (4) comprises a heat exchanger (41), a mechanical circulation pump (42), a heat exchange switch valve (43), a liquid discharge switch valve (44) and a liquid return pipeline (45); the two ends of the mechanical circulation pump (42) are respectively connected to the reaction kettle (2) and the heat exchanger (41) through pipelines, the liquid discharge switch valve (44) is arranged at the front end of the mechanical circulation pump (42), and the heat exchange switch valve (43) is arranged at the rear end of the mechanical circulation pump (42); the liquid outlet end of the heat exchanger (41) is connected to the spray mechanism (3) through the liquid return pipeline (45).
2. A reaction system according to claim 1, characterized in that: A liquid inlet baffle (34) is provided below the pipeline connecting the mixing chamber (31) and the reaction kettle (2), and the liquid inlet baffle (34) is located inside the reaction kettle (2).
3. A reaction system according to claim 1, characterized in that: A mixed liquid inlet switch valve (33) is provided on the connecting pipeline between the mixing chamber (31) and the reaction kettle (2).
4. A reaction system according to claim 1, characterized in that: The heat exchanger (41) is provided with a pressure gauge (46).
5. A reaction system according to claim 1, characterized in that: A stirring mechanism (21) is provided in the reaction kettle (2).
6. A reaction system according to claim 1, characterized in that: A dripping switch valve (11) is provided at the rear end of the high-level tank (1), and the dripping switch valve (11) is located between the high-level tank (1) and the spray mechanism (3).