CN103769006A - Multilevel air-lift loop reactor with coaxial variable-height multiple guide cylinders - Google Patents
Multilevel air-lift loop reactor with coaxial variable-height multiple guide cylinders Download PDFInfo
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- CN103769006A CN103769006A CN201210396350.5A CN201210396350A CN103769006A CN 103769006 A CN103769006 A CN 103769006A CN 201210396350 A CN201210396350 A CN 201210396350A CN 103769006 A CN103769006 A CN 103769006A
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Abstract
The invention provides a multilevel air-lift loop reactor with coaxial variable height multiple guide cylinders. The multilevel air-lift loop reactor mainly comprises an outer cylinder (1), a first-level guide cylinder (2), a second-level guide cylinder (3), a third-level guide cylinder (4), a central gas distributor (5), an annular gas distributor (6), a gas-liquid mixed nozzle (7), an upper discharge port (8) and a lower discharge port (9), wherein at least three coaxial variable-height guide cylinders are assembled in the outer cylinder (1) of the reactor, the central gas distributor (5) is installed on the bottom of an air-lift central round space, the annular gas distributor (6) is installed on the bottom of an air-lift guide cylinder annular space, the air-liquid mixed nozzle (7) is installed on the lower part of the air-lift guide cylinder annular space, so that the suction force is formed, the air-liquid circulation power is enhanced, and the cross sections of the annular spaces which are formed among a plurality of guide cylinders are not the same. According to the multilevel air-lift loop reactor, the heights of the plurality of guide cylinders are different, so that fluid can form good ordered circulation flowing from the inside to the outside. The multilevel air-lift loop reactor with the coaxial variable height multiple guide cylinders provided by the invention is suitable for chemical reactions with low height-diameters and large handling capacity.
Description
Technical field
The present invention relates to a kind of multistage Airlift circulating reactor, belong to the fields such as petrochemical industry, environmental project, pharmacy, food.
Background technology
Airlift circulating reactor is on the basis of strengthening bubbling reactor, to grow up in recent years.Because it has good heat transfer, mass transfer effect, easily sealing, can carry out solution-air, liquid-liquid, homogeneous phase and heterogeneous reaction between gas-liquid-solid, is suitable as inflammable, explosive, poisonous chemical reactor.
Be when lower, for improving the scale of reactor, can adopt multistage Airlift circulating reactor compared with low spatial or ratio of height to diameter for application scenario.This multi-stage circular flow reactor can be that multiple monotubular single-stage Airlift circulating reactors are in series, and also can connect at the inner inter-stage that forms of same reactor urceolus.The mode of multiple monotubular single-stage Airlift circulating reactor series connection relates to design, manufacture, the operation of two reactors, has increased production cost and operation easier.Be the vertical series connection of multicell or horizontal series connection in one of inner mode that forms inter-stage series connection of same reactor urceolus, wherein the energy consumption of the vertical series connection of multicell is larger, and in the horizontal series connection of multicell, liquid needs pressure-driven, can only carry out continued operation.Therefore, above-mentioned multi-stage circular flow reactor has all been subject to certain restriction in application.
Summary of the invention
The present invention proposes a kind of multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes.Multiple guide shells in this multistage Airlift circulating reactor have formed different flow chambers, vertically series connection.Simple in structure, the easy operating of the multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes that the present invention proposes, there is good mass-and heat-transfer performance, and can overcome the defect that cost is high, energy consumption is large of above-mentioned multistage Airlift circulating reactor.Due to the height difference of multilevel deflector cylinder, be conducive to fluid and form from the inside to the outside good orderly circulating.
The multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes that the present invention proposes, mainly infiltrate nozzle (7), upper discharge gate (8), lower discharge gate (9) by urceolus (1), one-level guide shell (2), secondary guide shell (3), three grades of guide shells (4), center gas distributor (5), annular gas distributor (6), gas-liquid and form, it is characterized in that: at the inner guide shell that at least three coaxial differing heights are installed of reactor urceolus (1).
In the described multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes, the diameter D3 of secondary guide shell (3) is 1.05～1.2 times of one-level guide shell (2) diameter D1, the diameter D4 of three grades of guide shells (4) is 1.05～1.2 times of secondary guide shell (3) diameter D3, and is less than urceolus diameter D2; The height H 3 of secondary guide shell (3) is 1.05～1.2 times of one-level guide shell (2) height H 1, the height H 4 of three grades of guide shells (4) is 1.05～1.2 times of secondary guide shell (3) height H 3, and is less than urceolus height H 2.
In the described multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes, the bottom, central circular space of rising at air-flow is provided with center gas distributor (5), the guide shell annular space bottom of rising at air-flow is provided with annular gas distributor (6), is beneficial to gas-liquid even contact; Under center gas distributor (5) and inner side guide shell, the distance L 1 on edge is 0.01～0.1 times of height H 1 of inner side guide shell, and under annular gas distributor (6) and adjacent inner side guide shell, the distance L 2 on edge is 0.01～0.1 times of height H 3 of adjacent inner side guide shell.
In the described multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes, the guide shell annular space middle and lower part of rising at air-flow is provided with gas-liquid and infiltrates nozzle (7), is beneficial to form suction force, strengthens gas-liquid cycle power; Under the lower edge that gas-liquid is infiltrated nozzle (7) and adjacent inner side guide shell, the distance L 3 on edge is 0.1～0.4 times of height H 2 of adjacent inner side guide shell, and the number that gas-liquid is infiltrated nozzle (7) is 4～16.
In the described multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes, the number of guide shell is odd number, and is at least three.Can need to design according to the scale of reactor.
In the described multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes, the sectional area of the annular space forming between multiple guide shells is unequal.Can design according to required cross section gas speed.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 and Fig. 2 are front view and the top views of the multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes that proposes of the present invention.
Fig. 3 is the multistage Airlift circulating reactor size schematic diagram with coaxial differing heights multiple draft tubes that the present invention proposes.
In Fig. 1 to Fig. 3,1. urceolus, 2. one-level guide shell, 3. secondary guide shell, 4. three grades of guide shells, 5. center gas distributor, 6. annular gas distributor, 7. gas-liquid is infiltrated nozzle, 8. goes up discharge gate, 9. descends discharge gate.
The specific embodiment
Referring to figs. 1 to Fig. 3, the multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes that the present invention proposes, mainly infiltrate nozzle (7), upper discharge gate (8), lower discharge gate (9) by urceolus (1), one-level guide shell (2), secondary guide shell (3), three grades of guide shells (4), center gas distributor (5), annular gas distributor (6), gas-liquid and form, it is characterized in that: at the inner guide shell that at least three coaxial differing heights are installed of reactor urceolus (1).
Referring to figs. 1 to Fig. 3, the diameter D3 of secondary guide shell (3) is 1.05～1.2 times of one-level guide shell (2) diameter D1, the diameter D4 of three grades of guide shells (4) is 1.05～1.2 times of secondary guide shell (3) diameter D3, and is less than urceolus diameter D2; The height H 3 of secondary guide shell (3) is 1.05～1.2 times of one-level guide shell (2) height H 1, the height H 4 of three grades of guide shells (4) is 1.05～1.2 times of secondary guide shell (3) height H 3, and is less than urceolus height H 2.
Referring to figs. 1 to Fig. 3, the bottom, central circular space of rising at air-flow is provided with center gas distributor (5), and the guide shell annular space bottom of rising at air-flow is provided with annular gas distributor (6), is beneficial to gas-liquid even contact; Under center gas distributor (5) and inner side guide shell, the distance L 1 on edge is 0.01～0.1 times of height H 1 of inner side guide shell, and under annular gas distributor (6) and adjacent inner side guide shell, the distance L 2 on edge is 0.01～0.1 times of height H 3 of adjacent inner side guide shell.Referring to figs. 1 to Fig. 3, the guide shell annular space middle and lower part of rising at air-flow is provided with gas-liquid and infiltrates nozzle (7), is beneficial to form suction force, strengthens gas-liquid cycle power; Under the lower edge that gas-liquid is infiltrated nozzle (7) and adjacent inner side guide shell, the distance L 3 on edge is 0.1～0.4 times of height H 2 of adjacent inner side guide shell, and the number that gas-liquid is infiltrated nozzle (7) is 4～16.
Referring to figs. 1 to Fig. 3, the number of guide shell is odd number, and is at least three.Can need to design according to the scale of reactor.
Referring to figs. 1 to Fig. 3, the sectional area of the annular space forming between multiple guide shells is unequal.Can design according to required cross section gas speed.
The multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes that the present invention proposes is applicable to the circulation flow reactor of low ratio of height to diameter.
The use procedure of the multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes that the present invention proposes, can be for example: gas-phase reaction material therefrom heart gas distributor (5) enters the inner space of circulation flow reactor one-level guide shell (2) and upwards flows together with liquid, at the Shang Yanchu of one-level guide shell (2), part gas overflowing liquid level, part gas flows downward to the annular space entering between one-level guide shell (2) and secondary guide shell (3) with liquid rotating, turn to the annular space entering between secondary guide shell (3) and three grades of guide shells (4) at the Xia Yanchu of secondary guide shell (3), annular gas distributor (6) and gas-liquid in this bottom, space are infiltrated under the ejector action of nozzle (7) and the driving of density contrast, continue upwards to flow, at the Shang Yanchu of three grades of guide shells (4), part gas overflowing liquid level, part gas flows downward to the annular space entering between three grades of guide shells (4) and urceolus (1) with liquid rotating, enter the bottom of reactor, so circulate.Due to the height difference of multilevel deflector cylinder, be conducive to fluid and form from the inside to the outside good orderly circulating.
The multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes that the present invention proposes is applicable to low ratio of height to diameter, chemical reaction that treating capacity is large.
Claims (6)
1. one kind has the multistage Airlift circulating reactor of coaxial differing heights multiple draft tubes, mainly infiltrate nozzle (7), upper discharge gate (8), lower discharge gate (9) by urceolus (1), one-level guide shell (2), secondary guide shell (3), three grades of guide shells (4), center gas distributor (5), annular gas distributor (6), gas-liquid and form, it is characterized in that: at the inner guide shell that at least three coaxial differing heights are installed of reactor urceolus (1).
2. the multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes as claimed in claim 1, it is characterized in that: the diameter D3 of secondary guide shell (3) is 1.05～1.2 times of one-level guide shell (2) diameter D1, the diameter D4 of three grades of guide shells (4) is 1.05～1.2 times of secondary guide shell (3) diameter D3, and is less than urceolus diameter D2; The height H 3 of secondary guide shell (3) is 1.05～1.2 times of one-level guide shell (2) height H 1, the height H 4 of three grades of guide shells (4) is 1.05～1.2 times of secondary guide shell (3) height H 3, and is less than urceolus height H 2.
3. the multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes as claimed in claim 1, it is characterized in that: the bottom, central circular space of rising at air-flow is provided with center gas distributor (5), the guide shell annular space bottom of rising at air-flow is provided with annular gas distributor (6), is beneficial to gas-liquid even contact; Under center gas distributor (5) and inner side guide shell, the distance L 1 on edge is 0.01～0.1 times of height H 1 of inner side guide shell, and under annular gas distributor (6) and adjacent inner side guide shell, the distance L 2 on edge is 0.01～0.1 times of height H 3 of adjacent inner side guide shell.
4. the multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes as claimed in claim 1, it is characterized in that: the guide shell annular space middle and lower part of rising at air-flow is provided with gas-liquid and infiltrates nozzle (7), be beneficial to form suction force, strengthen gas-liquid cycle power; Under the lower edge that gas-liquid is infiltrated nozzle (7) and adjacent inner side guide shell, the distance L 3 on edge is 0.1～0.4 times of height H 2 of adjacent inner side guide shell, and the number that gas-liquid is infiltrated nozzle (7) is 4～16.
5. the multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes as claimed in claim 1, is characterized in that: the number of guide shell is odd number, and is at least three.
6. the multistage Airlift circulating reactor with coaxial differing heights multiple draft tubes as claimed in claim 1, is characterized in that: the sectional area of the annular space forming between multiple guide shells is unequal.
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| CN201210396350.5A CN103769006A (en) | 2012-10-18 | 2012-10-18 | Multilevel air-lift loop reactor with coaxial variable-height multiple guide cylinders |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174352A (en) * | 2014-09-04 | 2014-12-03 | 吉林化工学院 | Internal loop airlift reactor for refined white oil experiment |
| CN105169997A (en) * | 2015-10-16 | 2015-12-23 | 成都明天高新产业有限责任公司 | Stirrer used for solid-liquid mixture |
| CN106552577A (en) * | 2015-09-30 | 2017-04-05 | 中国石油化工股份有限公司 | A kind of multilamellar guide shell bubbling reactor and its using method |
| CN107497374A (en) * | 2016-06-14 | 2017-12-22 | 中国石油化工股份有限公司 | A kind of cyclohexane oxidation device and its application method |
| CN107930555A (en) * | 2017-11-30 | 2018-04-20 | 万华化学集团股份有限公司 | Prepare staged horizontal mechanically stirred airlift bioreator and the application of ethylbenzene hydroperoxide |
| CN110787765A (en) * | 2018-08-01 | 2020-02-14 | 中国石油化工股份有限公司 | Reactor and method for preparing pseudo-boehmite |
| CN115536131A (en) * | 2022-08-02 | 2022-12-30 | 中国石油化工股份有限公司 | Up-flow multi-stage internal circulation low-oxygen aeration bioreactor |
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| US4234560A (en) * | 1976-10-09 | 1980-11-18 | Basf Aktiengesellschaft | Process for treating a liquid with a gas and for preventing the phase separation of unreacted gas and liquid, in a circulatory reactor |
| CN2102931U (en) * | 1991-09-25 | 1992-04-29 | 宝鸡制药机械厂 | Air-lift double circulation fermentation reactor |
| CN2598996Y (en) * | 2003-01-24 | 2004-01-14 | 北京国科海蓝环境科技发展有限公司 | Multiple nest type circulation flow aeration tower |
| CN202860508U (en) * | 2012-10-18 | 2013-04-10 | 中国石油大学(北京) | Multilevel air-lift loop reactor with coaxial variable height multiple guide cylinders |
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2012
- 2012-10-18 CN CN201210396350.5A patent/CN103769006A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4234560A (en) * | 1976-10-09 | 1980-11-18 | Basf Aktiengesellschaft | Process for treating a liquid with a gas and for preventing the phase separation of unreacted gas and liquid, in a circulatory reactor |
| CN2102931U (en) * | 1991-09-25 | 1992-04-29 | 宝鸡制药机械厂 | Air-lift double circulation fermentation reactor |
| CN2598996Y (en) * | 2003-01-24 | 2004-01-14 | 北京国科海蓝环境科技发展有限公司 | Multiple nest type circulation flow aeration tower |
| CN202860508U (en) * | 2012-10-18 | 2013-04-10 | 中国石油大学(北京) | Multilevel air-lift loop reactor with coaxial variable height multiple guide cylinders |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174352A (en) * | 2014-09-04 | 2014-12-03 | 吉林化工学院 | Internal loop airlift reactor for refined white oil experiment |
| CN106552577A (en) * | 2015-09-30 | 2017-04-05 | 中国石油化工股份有限公司 | A kind of multilamellar guide shell bubbling reactor and its using method |
| CN106552577B (en) * | 2015-09-30 | 2018-07-31 | 中国石油化工股份有限公司 | A kind of multilayer guide shell bubbling reactor and its application method |
| CN105169997A (en) * | 2015-10-16 | 2015-12-23 | 成都明天高新产业有限责任公司 | Stirrer used for solid-liquid mixture |
| CN107497374A (en) * | 2016-06-14 | 2017-12-22 | 中国石油化工股份有限公司 | A kind of cyclohexane oxidation device and its application method |
| CN107930555A (en) * | 2017-11-30 | 2018-04-20 | 万华化学集团股份有限公司 | Prepare staged horizontal mechanically stirred airlift bioreator and the application of ethylbenzene hydroperoxide |
| CN110787765A (en) * | 2018-08-01 | 2020-02-14 | 中国石油化工股份有限公司 | Reactor and method for preparing pseudo-boehmite |
| CN110787765B (en) * | 2018-08-01 | 2021-11-05 | 中国石油化工股份有限公司 | Reactor and method for preparing pseudo-boehmite |
| CN115536131A (en) * | 2022-08-02 | 2022-12-30 | 中国石油化工股份有限公司 | Up-flow multi-stage internal circulation low-oxygen aeration bioreactor |
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Application publication date: 20140507 |