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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Abstract
一种具有同轴不同高度多导流筒的多级气升式环流反应器，主要由外筒(1)、一级导流筒(2)、二级导流筒(3)、三级导流筒(4)、中心气体分布器(5)、环形气体分布器(6)、气液混进喷嘴(7)、上排料口(8)、下排料口(9)组成，在反应器外筒(1)内部安装至少三个同轴不同高度的导流筒，在气流上升的中心圆形空间底部安装有中心气体分布器(5)，在气流上升的导流筒环形空间底部安装有环形气体分布器(6)，在气流上升的导流筒环形空间中下部安装有气液混进喷嘴(7)，以利于形成抽吸力，增强气液循环动力，多个导流筒之间形成的环形空间的截面积不相等。本发明的多级气升式环流反应器，由于多级导流筒的高度不同，有利于流体由内至外形成良好有序的循环流动。本发明提出的具有同轴不同高度多导流筒的多级气升式环流反应器适用于低高径比、处理量大的化学反应。
A multi-stage air-lift loop reactor with coaxial and multi-height guide cylinders, mainly composed of an outer cylinder (1), a first-stage guide cylinder (2), a second-stage guide cylinder (3), and a third-stage guide cylinder. The flow tube (4), the central gas distributor (5), the annular gas distributor (6), the gas-liquid mixing nozzle (7), the upper discharge port (8), and the lower discharge port (9). At least three coaxial guide tubes with different heights are installed inside the outer cylinder (1), a central gas distributor (5) is installed at the bottom of the central circular space where the air flow rises, and a central gas distributor (5) is installed at the bottom of the annular space of the guide tube where the air flow rises. There is an annular gas distributor (6), and a gas-liquid mixing nozzle (7) is installed in the lower part of the annular space of the guide tube where the air flow rises, so as to facilitate the formation of suction force and enhance the power of gas-liquid circulation. The cross-sectional areas of the annular spaces formed between them are not equal. The multi-stage air-lift loop reactor of the present invention is conducive to the formation of a good and orderly circulation flow of the fluid from the inside to the outside due to the different heights of the multi-stage draft tubes. The multi-stage air-lift loop reactor provided by the present invention has coaxial and multi-height guide cylinders, which is suitable for chemical reactions with low height-to-diameter ratio and large processing 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 | An up-flow multi-stage internal circulation hypoxic aeration bioreactor |
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| 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 nested circulation 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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Patent Citations (4)
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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 |
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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 | An up-flow multi-stage internal circulation hypoxic aeration bioreactor |
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Application publication date: 20140507 |