CN219356221U - Dynamic tubular reactor capable of prolonging material residence time - Google Patents
Dynamic tubular reactor capable of prolonging material residence time Download PDFInfo
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- CN219356221U CN219356221U CN202320175080.9U CN202320175080U CN219356221U CN 219356221 U CN219356221 U CN 219356221U CN 202320175080 U CN202320175080 U CN 202320175080U CN 219356221 U CN219356221 U CN 219356221U
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- 239000000463 material Substances 0.000 title claims abstract description 41
- 238000003756 stirring Methods 0.000 claims abstract description 80
- 238000006243 chemical reaction Methods 0.000 claims abstract description 49
- 239000000376 reactant Substances 0.000 claims abstract description 16
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims description 25
- 238000004804 winding Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 3
- 230000014759 maintenance of location Effects 0.000 abstract description 2
- 230000001934 delay Effects 0.000 abstract 1
- 238000012546 transfer Methods 0.000 description 21
- 230000000694 effects Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000010924 continuous production Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model designs a dynamic tubular reactor capable of prolonging the retention time of materials, which comprises a reaction cavity shell, a stirring shaft, a reaction cavity, a spiral pipe, a branch pipe, stirring paddles, a fixed column, a delay retainer ring, a reactant inlet A, a reactant inlet B, a reaction product outlet, a heat exchange jacket, a heat exchange medium inlet A, a heat exchange medium outlet A, a heat exchange medium inlet B, a heat exchange medium outlet B, spiral blades, a mechanical seal and a power component. The stirring shaft is axially arranged in the middle of the reactor, the spiral pipe is wound on the stirring shaft, the stirring blades are arranged on the outer side of the stirring shaft, the fixing column is arranged on the inner side of the reaction cavity shell, and the delay retainer ring is arranged on the inner side of the reaction cavity shell. The time delay check ring delays the advancing speed of the materials and prolongs the residence time of the materials in the reactor.
Description
Technical Field
The utility model relates to the field of chemical equipment, in particular to a dynamic tubular reactor capable of prolonging the retention time of materials.
Background
Conventional batch production has been a common and reliable method of production for the past few decades, but in recent years continuous production is becoming an excellent alternative. Compared with the traditional production mode, the continuous production has a plurality of advantages, including safer production process, more automatic production, more stable product quality, higher production efficiency and the like. The continuous reactor is a critical device in continuous production, and the style, size, structure and the like of the reactor largely determine the production efficiency and the product quality.
The continuous reactor is a reactor capable of realizing simultaneous feeding and discharging, and has the advantages of small volume, strong safety, good mass transfer effect, high production efficiency and the like, and has wide development prospect. The reinforced mass transfer is the key point of the design of the continuous reactor, and researches show that the mass transfer between fluids in the reactor can be reinforced by stirring to achieve a better effect. At present, various designs of continuous reactor structures are available, chinese patent CN216799841U discloses a dynamic tubular reactor, the reactor drives continuous propeller blades to mix materials through a stirring shaft, so that the mass transfer effect between fluids can be enhanced, but the propeller blades have a larger axial pushing effect on the fluids, the residence time of the fluids in the reactor is greatly reduced, the full reaction of the materials is not facilitated, and the reactor only depends on jacket heat exchange, the heat exchange amount is too small, and the reactor cannot adapt to a reaction with a large amount of heat release. In this case, a reactor which can prolong the residence time of the material in the reactor and which can exchange heat sufficiently is of great importance.
Disclosure of Invention
In order to solve the problems, the technical scheme of the utility model is as follows: the utility model provides a can prolong dynamic tubular reactor of material dwell time, including the reaction chamber shell, the (mixing) shaft, the reaction chamber, the spiral pipe, the branch pipe, stirring paddle, the fixed column, the time delay retaining ring, reactant entry A, reactant entry B, the reaction product export, the heat transfer jacket, heat transfer medium entry A, heat transfer medium export A, heat transfer medium entry B, heat transfer medium export B, helical blade, mechanical seal, power component, above-mentioned (mixing) shaft axial setting is in the middle of the reactor, above-mentioned reaction chamber sets up outside the (mixing) shaft, above-mentioned spiral pipe winding is outside the (mixing) shaft, above-mentioned branch pipe sets up at the (mixing) shaft both ends perpendicularly, above-mentioned stirring paddle sets up outside the (mixing) shaft, above-mentioned fixed column sets up in the reaction chamber shell inboard, above-mentioned time delay retaining ring sets up in the reaction chamber shell inboard, above-mentioned reactant entry and reaction product export set up on the reaction chamber, above-mentioned heat transfer medium entry A and heat transfer medium export A set up on the heat transfer jacket, above-transfer medium entry B and heat transfer medium export B set up on the (mixing) shaft, above-mentioned helical blade sets up in the heat transfer jacket, above-mentioned mechanical seal sets up at the reaction chamber both ends, above-mentioned mechanical seal sets up at the both ends.
Further, the number of the delay check rings is 3 in total, and the delay check rings are uniformly and axially distributed on the inner side of the reaction cavity shell. The reaction chamber is divided into four parts, and when the material fills the previous part, the material can enter the next part, so that the material residence time is prolonged.
Furthermore, the stirring shaft is hollow, and the heat exchange medium can flow into the stirring shaft from the heat exchange medium inlet B and flow out from the heat exchange medium outlet B to strengthen heat transfer.
Further, the spiral pipe is communicated with the inside of the stirring shaft through the branch pipe, and heat exchange fluid can form a loop in the stirring shaft and the spiral pipe to strengthen heat transfer.
Further, the heat exchange jacket and the heat exchange fluid in the stirring shaft adopt a countercurrent mode, so that heat exchange can be more fully realized.
Further, the stirring shaft drives the stirring blade and the spiral pipe to rotate, and the stirring shaft is matched with the fixed column to stir the fluid so as to strengthen mass transfer.
Compared with the prior art, the utility model has the advantages that:
(1) The time delay retainer ring can prolong the residence time of materials in the reactor, so that the reaction is more sufficient, and the conversion rate of reactants is improved.
(2) According to the utility model, the stirring shaft drives the stirring blade and the spiral pipe to stir the fluid, and the stirring shaft is matched with the fixed column, so that the mixing and mass transfer effects between materials are enhanced, no back mixing is generated, and the production efficiency is improved.
(3) The stirring shaft, the spiral tube and the jacket can be filled with heat exchange fluid, so that efficient heat exchange is realized, and the stability of the reaction is ensured.
(4) In the utility model, the heat exchange jacket and the heat exchange fluid in the stirring shaft adopt a countercurrent mode, so that the heat exchange can be more fully realized.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic partial structure of the stirring member of the present utility model.
Fig. 3 is a schematic view of the branch pipe structure of the present utility model.
Wherein: a heat exchange medium inlet A, a reactant inlet B, a heat exchange jacket 4, a spiral blade 5, a delay retainer ring 6, a fixed column 7, a stirring blade 8, a spiral tube 9, a reaction cavity 10, a heat exchange medium outlet B11, a mechanical seal 12, a branch pipe 13, a stirring shaft 14, a reaction cavity shell 15, a reaction product outlet 16, a heat exchange medium outlet A17, a power component 18 and a heat exchange medium inlet B19.
Detailed Description
The utility model will be further described by the following embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, a dynamic tubular reactor capable of prolonging the residence time of materials comprises a heat exchange medium inlet A1, a reactant inlet A2, a reactant inlet B3, a heat exchange jacket 4, a spiral blade 5, a delay retainer 6, a fixed column 7, stirring paddles 8, a spiral tube 9, a reaction chamber 10, a heat exchange medium outlet B11, a mechanical seal 12, a branch pipe 13, a stirring shaft 14, a reaction chamber housing 15, a reaction product outlet 16, a heat exchange medium outlet a17, a power component 18 and a heat exchange medium inlet B19.
The stirring shaft 14 is axially arranged in the middle of the reactor, the reaction cavity 10 is arranged outside the stirring shaft, the heat exchange jacket 4 is arranged outside the reaction cavity 10, the stirring shaft 14 is hollow and is used for passing heat exchange fluid, the spiral pipe 9 is wound on the outer side of the stirring shaft 14, the branch pipes 13 are vertically arranged at two ends of the stirring shaft 14, and two ends of the spiral pipe 9 are connected with the stirring shaft 14 through the branch pipes 13. The spiral blades 5 and the fixing columns 7 are alternately arranged at the gap of the spiral tube, wherein the spiral blades 5 are fixed at the outer side of the stirring shaft 14, the fixing columns 7 are fixed at the inner side of the reaction cavity shell 15, the delay retainer 6 is fixed at the inner side of the reaction cavity shell 15, 3 reaction medium inlets are uniformly distributed and divide the reaction cavity 10 into four parts, the reactant inlets A2 and B3 are arranged at the front end of the reactor, the opening is upward, the reaction product outlet 16 is arranged at the rear end of the reactor, the opening is upward, the heat exchange medium inlet A1 is arranged at the front end of the heat exchange jacket 4, the opening is upward, the heat exchange medium outlet A17 is arranged at the rear end of the heat exchange jacket 4, the opening is downward, the heat exchange medium inlet B19 is arranged at the rear end of the stirring shaft 14, the opening is rearward, the heat exchange medium outlet B11 is arranged at the front end of the stirring shaft, the spiral blades 5 are arranged in the heat exchange jacket 4, the mechanical seal 12 is arranged at the two ends of the reaction cavity 10, and the power components 18 are arranged at the two ends of the stirring shaft 14.
A dynamic tubular reactor capable of prolonging the residence time of materials comprises the following steps in use:
firstly, checking whether a heat exchange jacket 4, a stirring shaft 14 and a spiral tube 9 are full of heat exchange fluid and a heat exchange device is started, checking whether the heat exchange fluid has leakage, then starting the stirring shaft 14 and checking whether the rotation of the heat exchange fluid is normal, finally conveying materials into a reaction cavity 10, enabling reactants to enter the reaction cavity 10 from a reactant inlet A2 and a reactant inlet B3, fixing stirring paddles 8 on the stirring shaft 14, externally winding the spiral tube 9, fixing columns 7 on the inner part of a reaction cavity shell 15, and enabling a stirring assembly 18 to drive the stirring shaft 14 to rotate, wherein the stirring paddles 8, the fixing columns 7 and the spiral tube 9 are matched with each other to provide a strong mixing effect on the materials, and when the materials reach a delay retainer 6, the materials are blocked before the delay retainer 6, after the accumulated height of the materials exceeds the delay retainer 6, the materials flow forward through the delay retainer 6 until the next delay retainer 6 is repeated for 3 times in total, and finally, the reaction products flow out of a reaction product outlet 16. The heat exchange medium flows into the heat exchange jacket 4 from the heat exchange medium inlet A1 for heat exchange, flows through the heat exchange jacket 4 under the flow guidance of the propeller blades 8, and flows out from the heat exchange medium outlet A17. The heat exchange medium flows into the stirring shaft 14 from the heat exchange medium inlet B19, one part directly flows through the stirring shaft 14, the other part flows into the spiral pipe 9 through the branch pipe 13, flows into the stirring shaft 14 through the branch pipe 13 after flowing through the spiral pipe 9, and finally flows out from the heat exchange medium outlet B11 after converging.
Specifically, the stirring component includes (mixing) shaft 14, stirring paddle 8, the fixed column 7, spiral pipe 9, a plurality of stirring paddle 8 and fixed column 7 are arranged in the clearance department of spiral pipe 9 in turn, when stirring shaft 14 rotates, stirring paddle 8 can give the great tangential velocity and the less forward axial velocity of fluid, fixed column 8 can give the great tangential velocity and the less forward and backward axial velocity of fluid, wherein stirring paddle 8 provides a part of backward axial velocity and can oppose forward axial velocity that stirring paddle 8 produced, the disturbance is produced to the fluid when reducing material axial velocity, promote fluid mixing, and can not produce back mixing, spiral pipe 9 can make the flow field in the reaction chamber more chaotic, the intensive mass transfer. Before the material reaches the delay retainer ring 6, the material stays in front of the delay retainer ring 6 because the height of the material does not exceed the delay retainer ring, and in the process of collecting the material, the stirring member is still continuously stirring the material, so that the purpose of prolonging the reaction time of the material is achieved, and after the height of the material exceeds the delay retainer ring 6, the material flows through the delay retainer ring 6 and enters the next part of the reaction cavity 10, and the previous process is repeated. The method greatly prolongs the residence time of the materials in the reaction cavity, increases the reaction time of the materials, improves the yield of the products, and has important significance for continuous production.
Specifically, the heat exchange assembly comprises a stirring shaft 14, a spiral pipe 9, a heat exchange jacket 4, a heat exchange medium inlet A1, a heat exchange medium outlet A17, a heat exchange medium inlet B19 and a heat exchange medium outlet B11, wherein the heat exchange jacket 4 is arranged outside a reaction cavity shell 15, the hollow stirring shaft 14 is communicated with the spiral pipe 9, and heat exchange fluid is introduced into the heat exchange jacket 4, the stirring shaft 14 and the spiral pipe 9 to form a double-ring heat system. The heat exchange medium enters the heat exchange jacket 4 from the heat exchange medium inlet A1, is drained by the spiral blades 5, uniformly flows through the jacket, flows out from the heat exchange medium outlet A17, enters the stirring shaft 14 from the heat exchange medium inlet B19, and flows out from the heat exchange medium outlet B11 because both ends of the stirring shaft 14 are connected with the spiral pipe 9 through the branch pipes 13, one part of the heat exchange medium directly passes through the stirring shaft 14, the other part of the heat exchange medium flows into the spiral pipe 9 through the branch pipes 13, the heat exchange fluid flowing through the spiral pipe 9 flows back into the stirring shaft 14 from the branch pipes 13 at the other end of the stirring shaft 14, and the two parts of heat exchange fluid flow together and flow out from the heat exchange medium outlet B11. Therefore, the heat exchange system realizes internal and external double heat exchange, and greatly improves the heat exchange efficiency. In this example, a mode of countercurrent opposite flushing between the heat exchange medium in the heat exchange jacket 4 and the heat exchange medium in the stirring shaft 14 is adopted, that is, the heat exchange medium in the heat exchange jacket 4 enters from the front end of the reactor and exits from the rear end of the reactor, and the heat exchange medium in the stirring shaft enters from the rear end of the reactor and exits from the front end of the reactor, so that the mode can exchange heat more sufficiently, and the heat exchange effect is improved. The requirement on temperature stability in continuous production is high, the temperature fluctuation of the reactor is required to be kept in a very small interval, and the double heat exchange structure can well meet the requirement.
In the whole, the dynamic tubular reactor prolongs the residence time of materials in the reaction cavity, enhances the mixing effect of fluid, strengthens the mass transfer process and improves the reaction efficiency. And the dynamic tubular reactor increases the heat exchange area, further improves the heat exchange efficiency, strengthens the temperature control effect on the reaction and improves the stability of the reaction.
The above embodiments are merely for illustrating the technical scheme of the present utility model and not for limiting the same. Any modification or partial replacement without departing from the spirit of the utility model shall be covered by the scope of the claims of the present utility model.
In the description of the present utility model, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.
Claims (6)
1. A dynamic tubular reactor capable of prolonging the residence time of materials, which is characterized in that: including reaction chamber shell, the (mixing) shaft, the reaction chamber, the spiral pipe, the branch pipe, stirring paddle, the fixed column, the time delay retaining ring, reactant entry A, reactant entry B, the reaction product export, the heat exchange jacket, heat exchange medium entry A, heat exchange medium export A, heat exchange medium entry B, helical blade, mechanical seal, power module, above-mentioned (mixing) shaft axial setting is in the middle of the reactor, above-mentioned reaction chamber sets up outside the (mixing) shaft, the winding of above-mentioned spiral pipe is outside the (mixing) shaft, above-mentioned branch pipe sets up at the (mixing) shaft both ends perpendicularly, above-mentioned stirring paddle sets up outside the (mixing) shaft, above-mentioned fixed column sets up in the reaction chamber shell inboard, above-mentioned time delay retaining ring sets up in the reaction chamber shell inboard, above-mentioned reactant entry and reaction product export set up on the reaction chamber, above-mentioned heat exchange medium entry A and heat exchange medium export A set up on the heat exchange jacket, above-mentioned heat exchange medium entry B and heat exchange medium export B set up on the (mixing) shaft, above-mentioned helical blade sets up in the heat exchange jacket, above-mentioned mechanical seal sets up at the reaction chamber both ends, above-mentioned power module sets up at the (mixing) shaft both ends.
2. The reactor of claim 1, wherein the delay check rings are disposed in total in 3, uniformly distributed on the side of the reaction chamber housing, dividing the reaction chamber into four parts, and the gap between the delay check rings and the reaction chamber housing is smaller, and the next part can be accessed after the material fills the previous part.
3. A dynamic tubular reactor for increasing the residence time of a material according to claim 1, wherein said stirring shaft is hollow, and a heat exchange medium is introduced into the stirring shaft through a heat exchange medium inlet B and discharged through a heat exchange medium outlet B.
4. A dynamic tubular reactor for increasing the residence time of a material according to claim 1, wherein said spiral tube is in communication with the interior of the stirring shaft via a branch tube, and the heat exchange fluid forms a loop within the stirring shaft and the spiral tube.
5. A dynamic tubular reactor for increasing the residence time of a material according to claim 1, wherein said heat exchange jacket and the heat exchange fluid in the stirring shaft are counter-current.
6. The dynamic tubular reactor for prolonging the residence time of materials according to claim 1, wherein the stirring shaft drives the stirring blade and the spiral tube to rotate, and the stirring shaft is matched with the fixed column to stir the fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320175080.9U CN219356221U (en) | 2023-02-10 | 2023-02-10 | Dynamic tubular reactor capable of prolonging material residence time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320175080.9U CN219356221U (en) | 2023-02-10 | 2023-02-10 | Dynamic tubular reactor capable of prolonging material residence time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219356221U true CN219356221U (en) | 2023-07-18 |
Family
ID=87146109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320175080.9U Active CN219356221U (en) | 2023-02-10 | 2023-02-10 | Dynamic tubular reactor capable of prolonging material residence time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219356221U (en) |
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2023
- 2023-02-10 CN CN202320175080.9U patent/CN219356221U/en active Active
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